diff options
Diffstat (limited to 'progs/trivial')
111 files changed, 9055 insertions, 209 deletions
diff --git a/progs/trivial/.gitignore b/progs/trivial/.gitignore index 1c49fdd55fe..a6629446d11 100644 --- a/progs/trivial/.gitignore +++ b/progs/trivial/.gitignore @@ -1,25 +1,45 @@ clear +clear-fbo +clear-fbo-tex +clear-scissor +clear-undefined dlist-dangling dlist-edgeflag dlist-edgeflag-dangling drawarrays drawelements drawrange +extfuncs.h +flat-clip +fs-tri line line-clip line-cull +line-smooth +line-stipple-wide line-userclip line-userclip-clip line-userclip-nop line-userclip-nop-clip +line-wide lineloop lineloop-clip +lineloop-elts +linestrip +linestrip-flat-stipple +linestrip-stipple +linestrip-stipple-wide +pgon-mode point point-clip point-param +point-sprite point-wide +point-wide-smooth poly poly-flat +poly-flat-clip +poly-flat-unfilled-clip poly-unfilled quad quad-clip @@ -32,33 +52,64 @@ quad-offset-unfilled quad-offset-units quad-tex-2d quad-tex-3d +quad-tex-alpha quad-tex-pbo quad-unfilled +quad-unfilled-clip +quad-unfilled-stipple quads quadstrip +quadstrip-cont quadstrip-flat readtex.c readtex.h tri +tri-alpha tri-blend +tri-blend-color +tri-blend-max +tri-blend-min +tri-blend-revsub +tri-blend-sub tri-clip tri-cull +tri-cull-both tri-dlist tri-edgeflag +trifan +trifan-flat +trifan-flat-clip +trifan-flat-unfilled-clip +trifan-unfilled +tri-fbo +tri-fbo-tex tri-flat tri-flat-clip +tri-fog +tri-mask-tri +tri-orig +tri-query +tri-scissor-tri +tri-stencil tri-tex-3d +tri-tri tri-unfilled tri-unfilled-clip +tri-unfilled-edgeflag tri-unfilled-smooth tri-unfilled-userclip +tri-unfilled-userclip-stip tri-userclip +tri-z +tri-z-eq tristrip tristrip-clip +tristrip-flat vbo-drawarrays vbo-drawelements vbo-drawrange vp-array +vp-array-int vp-clip vp-line-clip vp-tri diff --git a/progs/trivial/Makefile b/progs/trivial/Makefile index e72fb078890..01475f9e5c2 100644 --- a/progs/trivial/Makefile +++ b/progs/trivial/Makefile @@ -11,69 +11,119 @@ include $(TOP)/configs/current LIBS = -L$(TOP)/$(LIB_DIR) -l$(GLUT_LIB) -l$(GLU_LIB) -l$(GL_LIB) $(APP_LIB_DEPS) SOURCES = \ + clear-fbo-tex.c \ + clear-fbo.c \ + clear-scissor.c \ + clear-undefined.c \ clear.c \ + dlist-dangling.c \ + dlist-edgeflag-dangling.c \ + dlist-edgeflag.c \ + drawarrays.c \ + drawelements.c \ + drawrange.c \ + flat-clip.c \ + fs-tri.c \ line-clip.c \ line-cull.c \ + line-smooth.c \ + line-stipple-wide.c \ line-userclip-clip.c \ line-userclip-nop-clip.c \ line-userclip-nop.c \ line-userclip.c \ + line-wide.c \ line.c \ lineloop-clip.c \ + lineloop-elts.c \ lineloop.c \ - point.c \ + linestrip-flat-stipple.c \ + linestrip-stipple-wide.c \ + linestrip-stipple.c \ + linestrip.c \ + pgon-mode.c \ point-clip.c \ point-param.c \ + point-sprite.c \ point-wide.c \ + point-wide-smooth.c \ + point.c \ poly-flat.c \ + poly-flat-clip.c \ + poly-flat-unfilled-clip.c \ poly-unfilled.c \ poly.c \ - quad-clip.c \ quad-clip-all-vertices.c \ quad-clip-nearplane.c \ + quad-clip.c \ quad-degenerate.c \ quad-flat.c \ quad-offset-factor.c \ - quad-offset-units.c \ quad-offset-unfilled.c \ - quad-unfilled.c \ + quad-offset-units.c \ quad-tex-2d.c \ - quad-tex-pbo.c \ quad-tex-3d.c \ + quad-tex-alpha.c \ + quad-tex-pbo.c \ + quad-unfilled-clip.c \ + quad-unfilled-stipple.c \ + quad-unfilled.c \ quad.c \ quads.c \ - quadstrip.c \ + quadstrip-cont.c \ quadstrip-flat.c \ - dlist-edgeflag.c \ - dlist-dangling.c \ - dlist-edgeflag-dangling.c \ - drawrange.c \ - drawelements.c \ - drawarrays.c \ + quadstrip.c \ + tri-orig.c \ + tri-alpha.c \ + tri-blend-color.c \ + tri-blend-max.c \ + tri-blend-min.c \ + tri-blend-revsub.c \ + tri-blend-sub.c \ tri-blend.c \ - tri-tex-3d.c \ tri-clip.c \ + tri-cull-both.c \ tri-cull.c \ + tri-dlist.c \ tri-edgeflag.c \ + tri-fbo-tex.c \ + tri-fbo.c \ tri-flat-clip.c \ tri-flat.c \ + tri-fog.c \ + tri-mask-tri.c \ + tri-query.c \ + tri-scissor-tri.c \ + tri-stencil.c \ + tri-tex-3d.c \ + tri-tri.c \ + tri-unfilled-edgeflag.c \ tri-unfilled-clip.c \ tri-unfilled-smooth.c \ + tri-unfilled-userclip-stip.c \ tri-unfilled-userclip.c \ tri-unfilled.c \ tri-userclip.c \ - tri-dlist.c \ + tri-z-eq.c \ + tri-z.c \ tri.c \ + trifan-flat.c \ + trifan-flat-clip.c \ + trifan-flat-unfilled-clip.c \ + trifan-unfilled.c \ + trifan.c \ tristrip-clip.c \ + tristrip-flat.c \ tristrip.c \ - vbo-drawrange.c \ - vbo-drawelements.c \ vbo-drawarrays.c \ + vbo-drawelements.c \ + vbo-drawrange.c \ + vp-array.c \ + vp-array-int.c \ vp-clip.c \ - vp-tri.c \ vp-line-clip.c \ - vp-unfilled.c \ - vp-array.c + vp-tri.c \ + vp-unfilled.c PROGS = $(SOURCES:%.c=%) @@ -137,6 +187,11 @@ readtex.c: $(TOP)/progs/util/readtex.c ln -s $(TOP)/progs/util/readtex.c . +fs-tri: fs-tri.c extfuncs.h + + +extfuncs.h: $(TOP)/progs/util/extfuncs.h + cp $< . # Emacs tags diff --git a/progs/trivial/clear-fbo-tex.c b/progs/trivial/clear-fbo-tex.c new file mode 100644 index 00000000000..68f1ab3d77e --- /dev/null +++ b/progs/trivial/clear-fbo-tex.c @@ -0,0 +1,220 @@ + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <string.h> + +#define GL_GLEXT_PROTOTYPES +#include <GL/glut.h> + + + +static GLenum TexTarget = GL_TEXTURE_2D; +static int TexWidth = 512, TexHeight = 512; +static GLenum TexIntFormat = GL_RGBA; /* either GL_RGB or GL_RGBA */ + +static int Width = 512, Height = 512; +static GLuint MyFB, TexObj; + + +#define CheckError() assert(glGetError() == 0) + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + + if (!glutExtensionSupported("GL_EXT_framebuffer_object")) { + printf("GL_EXT_framebuffer_object not found!\n"); + exit(0); + } + + + glGenFramebuffersEXT(1, &MyFB); + glGenTextures(1, &TexObj); + + /* Make texture object/image */ + glBindTexture(TexTarget, TexObj); + glTexParameteri(TexTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(TexTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameteri(TexTarget, GL_TEXTURE_BASE_LEVEL, 0); + glTexParameteri(TexTarget, GL_TEXTURE_MAX_LEVEL, 0); + + glTexImage2D(TexTarget, 0, TexIntFormat, TexWidth, TexHeight, 0, + GL_RGBA, GL_UNSIGNED_BYTE, NULL); + + + glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); + + + + { + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB); + + glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, + TexTarget, TexObj, 0); + + + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + } + +} + + + +static void +Reshape( int width, int height ) +{ + glViewport( 0, 0, width, height ); + glMatrixMode( GL_PROJECTION ); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode( GL_MODELVIEW ); + + Width = width; + Height = height; +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + + + +static void Draw( void ) +{ + + + /* draw to texture image */ + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB); +// glDrawBuffer(GL_COLOR_ATTACHMENT1_EXT); +// glReadBuffer(GL_COLOR_ATTACHMENT1_EXT); + + + glViewport(0, 0, TexWidth, TexHeight); + CheckError(); + + glClearColor(0.5, 0.5, 1.0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + CheckError(); + + if (0) { + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glEnd(); + } + + { + GLubyte *buffer = malloc(Width * Height * 4); + + /* read from user framebuffer */ + glReadPixels(0, 0, Width-60, Height-60, GL_RGBA, GL_UNSIGNED_BYTE, buffer); + CheckError(); + + /* draw to window */ + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + glViewport(0, 0, Width, Height); + + /* Try to clear the window, but will overwrite: + */ + glClearColor(0.8, 0.8, 0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + + glWindowPos2iARB(30, 30); + glDrawPixels(Width-60, Height-60, GL_RGBA, GL_UNSIGNED_BYTE, buffer); + + free(buffer); + } + + /* Bind normal framebuffer */ + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + glViewport(0, 0, Width, Height); + + if (0) { + glBegin(GL_TRIANGLES); + glColor3f(0,.7,0); + glVertex3f( 0.5, -0.5, -30.0); + glColor3f(0,0,.8); + glVertex3f( 0.5, 0.5, -30.0); + glColor3f(.9,0,0); + glVertex3f(-0.5, 0.0, -30.0); + glEnd(); + } + + if (doubleBuffer) { + glutSwapBuffers(); + } + + CheckError(); +} + + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + + + +int +main( int argc, char *argv[] ) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize( Width, Height ); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow(argv[0]) == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/clear-fbo.c b/progs/trivial/clear-fbo.c new file mode 100644 index 00000000000..82218ed4985 --- /dev/null +++ b/progs/trivial/clear-fbo.c @@ -0,0 +1,205 @@ + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <string.h> + +#define GL_GLEXT_PROTOTYPES +#include <GL/glut.h> + + + +static int Width = 512, Height = 512; +static GLuint MyFB, MyRB; + + +#define CheckError() assert(glGetError() == 0) + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + + if (!glutExtensionSupported("GL_EXT_framebuffer_object")) { + printf("GL_EXT_framebuffer_object not found!\n"); + exit(0); + } + + + glGenFramebuffersEXT(1, &MyFB); + glGenRenderbuffersEXT(1, &MyRB); + + { + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB); + + glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, MyRB); + + glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, + GL_RENDERBUFFER_EXT, MyRB); + + glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGB, Width, Height); + + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + } + +} + + + +static void +Reshape( int width, int height ) +{ + glViewport( 0, 0, width, height ); + glMatrixMode( GL_PROJECTION ); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode( GL_MODELVIEW ); + + Width = width; + Height = height; + glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGB, Width, Height); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + + + +static void Draw( void ) +{ + + /* draw to user framebuffer */ + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB); + glDrawBuffer(GL_COLOR_ATTACHMENT1_EXT); + glReadBuffer(GL_COLOR_ATTACHMENT1_EXT); + + + glViewport(0, 0, Width, Height); + CheckError(); + + glClearColor(0.5, 0.5, 1.0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + CheckError(); + + if (0) { + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glEnd(); + } + + { + GLubyte *buffer = malloc(Width * Height * 4); + + /* read from user framebuffer */ + glReadPixels(0, 0, Width-60, Height-60, GL_RGBA, GL_UNSIGNED_BYTE, buffer); + CheckError(); + + /* draw to window */ + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + glViewport(0, 0, Width, Height); + + /* Try to clear the window, but will overwrite: + */ + glClearColor(0.8, 0.8, 0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + + glWindowPos2iARB(30, 30); + glDrawPixels(Width-60, Height-60, GL_RGBA, GL_UNSIGNED_BYTE, buffer); + + free(buffer); + } + + /* Bind normal framebuffer */ + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + glViewport(0, 0, Width, Height); + + if (0) { + glBegin(GL_TRIANGLES); + glColor3f(0,.7,0); + glVertex3f( 0.5, -0.5, -30.0); + glColor3f(0,0,.8); + glVertex3f( 0.5, 0.5, -30.0); + glColor3f(.9,0,0); + glVertex3f(-0.5, 0.0, -30.0); + glEnd(); + } + + if (doubleBuffer) + glutSwapBuffers(); + else + glFinish(); + + CheckError(); +} + + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + + + +int +main( int argc, char *argv[] ) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize( Width, Height ); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow(argv[0]) == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/clear-scissor.c b/progs/trivial/clear-scissor.c new file mode 100644 index 00000000000..5e2025bed74 --- /dev/null +++ b/progs/trivial/clear-scissor.c @@ -0,0 +1,118 @@ +/* + * glClear + glScissor + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +GLenum doubleBuffer; +GLint Width = 200, Height = 150; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); +} + +static void Reshape(int width, int height) +{ + Width = width; + Height = height; + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + switch (key) { + case 27: + exit(1); + default: + return; + } + glutPostRedisplay(); +} + +static void Draw(void) +{ + glEnable(GL_SCISSOR_TEST); + + glClearColor(1, 0, 0, 0); + glScissor(0, 0, Width / 2, Height / 2); + glClear(GL_COLOR_BUFFER_BIT); + + glClearColor(0, 1, 0, 0); + glScissor(Width / 2, 0, Width - Width / 2, Height / 2); + glClear(GL_COLOR_BUFFER_BIT); + + glClearColor(0, 0, 1, 0); + glScissor(0, Height / 2, Width / 2, Height - Height / 2); + glClear(GL_COLOR_BUFFER_BIT); + + glClearColor(1, 1, 1, 0); + glScissor(Width / 2, Height / 2, Width - Width / 2, Height - Height / 2); + glClear(GL_COLOR_BUFFER_BIT); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( Width, Height ); + + type = GLUT_RGB | GLUT_ALPHA; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow(argv[0]) == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/clear-undefined.c b/progs/trivial/clear-undefined.c new file mode 100644 index 00000000000..ce066bf8e6f --- /dev/null +++ b/progs/trivial/clear-undefined.c @@ -0,0 +1,137 @@ +/* + * glClear + glScissor + Undefined content of framebuffer + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +GLenum doubleBuffer; +GLint Width = 200, Height = 150; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + fprintf(stderr, "Top right corner should be red\n"); +} + +static void Reshape(int width, int height) +{ + Width = width; + Height = height; + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + switch (key) { + case 27: + exit(1); + default: + glutPostRedisplay(); + return; + } + +} + +static void Draw(void) +{ + glColor4f(1.0, 0.0, 0.0, 1.0); + glBegin(GL_QUADS); + glVertex2d(0.0, 0.0); + glVertex2d(0.0, 1.0); + glVertex2d(1.0, 1.0); + glVertex2d(1.0, 0.0); + glEnd(); + + glBegin(GL_QUADS); + glVertex2d(0.0, 0.0); + glVertex2d(0.0, -1.0); + glVertex2d(1.0, -1.0); + glVertex2d(1.0, 0.0); + glEnd(); + + glEnable(GL_SCISSOR_TEST); + glClearColor(1, 1, 0, 0); + glScissor(Width / 2, 0, Width - Width / 2, Height / 2); + glClear(GL_COLOR_BUFFER_BIT); + + glClearColor(0, 0, 1, 0); + glScissor(0, Height / 2, Width / 2, Height - Height / 2); + glClear(GL_COLOR_BUFFER_BIT); + glDisable(GL_SCISSOR_TEST); + + glColor4f(0.0, 1.0, 0.0, 1.0); + glBegin(GL_QUADS); + glVertex2d( 0.0, 0.0); + glVertex2d( 0.0, -1.0); + glVertex2d(-1.0, -1.0); + glVertex2d(-1.0, 0.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_TRUE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( Width, Height ); + + + type = GLUT_RGB | GLUT_ALPHA; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow(argv[0]) == GL_FALSE) { + exit(1); + } + + Init(); + Reshape(Width, Height); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/clear.c b/progs/trivial/clear.c index 7e7ca588c31..da4fff04590 100644 --- a/progs/trivial/clear.c +++ b/progs/trivial/clear.c @@ -59,7 +59,7 @@ static void Key(unsigned char key, int x, int y) switch (key) { case 27: - exit(1); + exit(0); default: return; } @@ -106,9 +106,10 @@ int main(int argc, char **argv) exit(1); } - glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + glutInitWindowPosition(0, 0); + glutInitWindowSize( 256, 256); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); @@ -122,5 +123,5 @@ int main(int argc, char **argv) glutKeyboardFunc(Key); glutDisplayFunc(Draw); glutMainLoop(); - return 0; + return 0; } diff --git a/progs/trivial/createwin.c b/progs/trivial/createwin.c new file mode 100644 index 00000000000..901048555a9 --- /dev/null +++ b/progs/trivial/createwin.c @@ -0,0 +1,120 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); +// glutMainLoop(); + return 0; +} diff --git a/progs/trivial/dlist-dangling.c b/progs/trivial/dlist-dangling.c index 97f878e96b9..00a75078444 100644 --- a/progs/trivial/dlist-dangling.c +++ b/progs/trivial/dlist-dangling.c @@ -131,7 +131,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/dlist-edgeflag-dangling.c b/progs/trivial/dlist-edgeflag-dangling.c index 47d29bdade1..08fae549c31 100644 --- a/progs/trivial/dlist-edgeflag-dangling.c +++ b/progs/trivial/dlist-edgeflag-dangling.c @@ -136,7 +136,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/dlist-edgeflag.c b/progs/trivial/dlist-edgeflag.c index b58e7eb4355..ae799dc3557 100644 --- a/progs/trivial/dlist-edgeflag.c +++ b/progs/trivial/dlist-edgeflag.c @@ -140,7 +140,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/flat-clip.c b/progs/trivial/flat-clip.c new file mode 100644 index 00000000000..dbe17a342eb --- /dev/null +++ b/progs/trivial/flat-clip.c @@ -0,0 +1,151 @@ +/** + * Test flat shading and clipping. + * + * Brian Paul + * 30 August 2007 + */ + + +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <GL/glut.h> + +static int Win; +static GLfloat Scale = 2.0, Zrot = 50; +static GLenum Mode = GL_LINE_LOOP; +static GLboolean Smooth = 0; +static GLenum PolygonMode = GL_FILL; + + +static void +Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + if (Smooth) + glShadeModel(GL_SMOOTH); + else + glShadeModel(GL_FLAT); + + glPushMatrix(); + glScalef(Scale, Scale, 1); + glRotatef(Zrot, 0, 0, 1); + + glPolygonMode(GL_FRONT_AND_BACK, PolygonMode); + + glBegin(Mode); + glColor3f(1, 0, 0); + glVertex2f(-1, -1); + glColor3f(0, 1, 0); + glVertex2f( 2, -1); + glColor3f(0, 0, 1); + glVertex2f( 0, 1); + glEnd(); + + glPushMatrix(); + glScalef(0.9, 0.9, 1); + glBegin(Mode); + glColor3f(1, 0, 0); + glVertex2f( 0, 1); + + glColor3f(0, 0, 1); + glVertex2f( 2, -1); + + glColor3f(0, 1, 0); + glVertex2f(-1, -1); + + glEnd(); + glPopMatrix(); + + glPopMatrix(); + + glutSwapBuffers(); +} + + +static void +Reshape(int width, int height) +{ + glViewport(0, 0, width, height); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -15.0); +} + + +static void +Key(unsigned char key, int x, int y) +{ + (void) x; + (void) y; + switch (key) { + case 'p': + if (Mode == GL_TRIANGLES) + Mode = GL_LINE_LOOP; + else + Mode = GL_TRIANGLES; + break; + case 'f': + if (PolygonMode == GL_POINT) + PolygonMode = GL_LINE; + else if (PolygonMode == GL_LINE) + PolygonMode = GL_FILL; + else + PolygonMode = GL_POINT; + printf("PolygonMode = 0x%x\n", PolygonMode); + break; + case 'r': + Zrot -= 5.0; + break; + case 'R': + Zrot += 5.0; + break; + case 'z': + Scale *= 1.1; + break; + case 'Z': + Scale /= 1.1; + break; + case 's': + Smooth = !Smooth; + break; + case 27: + glutDestroyWindow(Win); + exit(0); + break; + } + glutPostRedisplay(); +} + + +static void +Init(void) +{ + printf("Usage:\n"); + printf(" z/Z: change triangle size\n"); + printf(" r/R: rotate\n"); + printf(" p: toggle line/fill mode\n"); + printf(" s: toggle smooth/flat shading\n"); + printf(" f: switch polygon fill mode\n"); +} + + +int +main(int argc, char *argv[]) +{ + glutInit(&argc, argv); + glutInitWindowPosition(0, 0); + glutInitWindowSize(400, 400); + glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); + Win = glutCreateWindow(argv[0]); + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + Init(); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/fs-tri.c b/progs/trivial/fs-tri.c new file mode 100644 index 00000000000..3be4d42e54c --- /dev/null +++ b/progs/trivial/fs-tri.c @@ -0,0 +1,212 @@ +/* Test fragment shader */ + +#include <assert.h> +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <GL/gl.h> +#include <GL/glut.h> +#include <GL/glext.h> +#include "extfuncs.h" + + +static GLuint fragShader; +static GLuint vertShader; +static GLuint program; +static GLint win = 0; +static GLfloat xpos = 0, ypos = 0; + + +static void +Redisplay(void) +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glPushMatrix(); + glTranslatef(xpos, ypos, 0); + + glBegin(GL_TRIANGLES); + glColor3f(1, 0, 0); + glVertex2f(-0.9, -0.9); + glColor3f(0, 1, 0); + glVertex2f( 0.9, -0.9); + glColor3f(0, 0, 1); + glVertex2f( 0, 0.9); + glEnd(); + + glPopMatrix(); + + glutSwapBuffers(); +} + + +static void +Reshape(int width, int height) +{ + glViewport(0, 0, width, height); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1, 1, -1, 1, -1, 1); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); +} + + +static void +CleanUp(void) +{ + glDeleteShader_func(fragShader); + glDeleteShader_func(vertShader); + glDeleteProgram_func(program); + glutDestroyWindow(win); +} + + +static void +Key(unsigned char key, int x, int y) +{ + (void) x; + (void) y; + + switch(key) { + case 27: + CleanUp(); + exit(0); + break; + } + glutPostRedisplay(); +} + + +static void +SpecialKey(int key, int x, int y) +{ + const GLfloat step = 0.1; + + (void) x; + (void) y; + + switch(key) { + case GLUT_KEY_UP: + ypos += step; + break; + case GLUT_KEY_DOWN: + ypos -= step; + break; + case GLUT_KEY_LEFT: + xpos -= step; + break; + case GLUT_KEY_RIGHT: + xpos += step; + break; + } + glutPostRedisplay(); +} + + +static void +LoadAndCompileShader(GLuint shader, const char *text) +{ + GLint stat; + + glShaderSource_func(shader, 1, (const GLchar **) &text, NULL); + + glCompileShader_func(shader); + + glGetShaderiv_func(shader, GL_COMPILE_STATUS, &stat); + if (!stat) { + GLchar log[1000]; + GLsizei len; + glGetShaderInfoLog_func(shader, 1000, &len, log); + fprintf(stderr, "fslight: problem compiling shader:\n%s\n", log); + exit(1); + } +} + + +static void +CheckLink(GLuint prog) +{ + GLint stat; + glGetProgramiv_func(prog, GL_LINK_STATUS, &stat); + if (!stat) { + GLchar log[1000]; + GLsizei len; + glGetProgramInfoLog_func(prog, 1000, &len, log); + fprintf(stderr, "Linker error:\n%s\n", log); + } +} + + +static void +Init(void) +{ + /* fragment color is a function of fragment position: */ + static const char *fragShaderText = + "void main() {\n" + " gl_FragColor = gl_FragCoord * vec4(0.005); \n" + " //gl_FragColor = gl_Color; \n" + " //gl_FragColor = vec4(1, 0, 0.5, 0); \n" + "}\n"; +#if 0 + static const char *vertShaderText = + "varying vec3 normal;\n" + "void main() {\n" + " gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n" + " normal = gl_NormalMatrix * gl_Normal;\n" + "}\n"; +#endif + const char *version; + + version = (const char *) glGetString(GL_VERSION); + if (version[0] != '2' || version[1] != '.') { + printf("This program requires OpenGL 2.x, found %s\n", version); + exit(1); + } + + GetExtensionFuncs(); + + fragShader = glCreateShader_func(GL_FRAGMENT_SHADER); + LoadAndCompileShader(fragShader, fragShaderText); + +#if 0 + vertShader = glCreateShader_func(GL_VERTEX_SHADER); + LoadAndCompileShader(vertShader, vertShaderText); +#endif + + program = glCreateProgram_func(); + glAttachShader_func(program, fragShader); +#if 0 + glAttachShader_func(program, vertShader); +#endif + glLinkProgram_func(program); + CheckLink(program); + glUseProgram_func(program); + + assert(glGetError() == 0); + + glClearColor(0.3f, 0.3f, 0.3f, 0.0f); + + printf("GL_RENDERER = %s\n",(const char *) glGetString(GL_RENDERER)); +} + + +int +main(int argc, char *argv[]) +{ + glutInit(&argc, argv); + glutInitWindowPosition( 0, 0); + glutInitWindowSize(200, 200); + glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); + win = glutCreateWindow(argv[0]); + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutSpecialFunc(SpecialKey); + glutDisplayFunc(Redisplay); + Init(); + glutMainLoop(); + return 0; +} + + diff --git a/progs/trivial/line-clip.c b/progs/trivial/line-clip.c index 9acd12acc7b..fd79d049c4f 100644 --- a/progs/trivial/line-clip.c +++ b/progs/trivial/line-clip.c @@ -122,7 +122,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/line-cull.c b/progs/trivial/line-cull.c index 8999a8f0b1c..038004b4c4a 100644 --- a/progs/trivial/line-cull.c +++ b/progs/trivial/line-cull.c @@ -118,7 +118,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/line-smooth.c b/progs/trivial/line-smooth.c new file mode 100644 index 00000000000..f030de9b9fe --- /dev/null +++ b/progs/trivial/line-smooth.c @@ -0,0 +1,172 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <math.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; +GLboolean smooth = GL_TRUE; +GLfloat width = 1.0; + + +static void Init(void) +{ + float range[2], aarange[2]; + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + glGetFloatv(GL_LINE_WIDTH_RANGE, aarange); + glGetFloatv(GL_ALIASED_LINE_WIDTH_RANGE, range); + printf("Non-AA line width range: %f .. %f\n", range[0], range[1]); + printf("AA line width range: %f .. %f\n", aarange[0], aarange[1]); +} + + +static void Reshape(int width, int height) +{ + glViewport(0, 0, (GLint)width, (GLint)height); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0, 0, -30); +} + +static void Key(unsigned char key, int x, int y) +{ + switch (key) { + case 'w': + width -= 0.5; + if (width < 0.5) + width = 0.5; + break; + case 'W': + width += 0.5; + break; + case 's': + smooth = !smooth; + break; + case 27: + exit(1); + default: + return; + } + printf("LineWidth: %g\n", width); + glutPostRedisplay(); +} + + +static void Draw(void) +{ + float a; + + glClear(GL_COLOR_BUFFER_BIT); + + glLineWidth(width); + + if (smooth) { + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + glEnable(GL_BLEND); + glEnable(GL_LINE_SMOOTH); + } + + glColor3f(1, 1, 1); + + glBegin(GL_LINES); + for (a = 0; a < 3.14159; a += 0.2) { + float x = .9 * cos(a); + float y = .9 * sin(a); + + glVertex2f(-x, -y); + glVertex2f( x, y); + } + glEnd(); + + glDisable(GL_LINE_SMOOTH); + glDisable(GL_BLEND); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow(argv[0]) == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/line-stipple-wide.c b/progs/trivial/line-stipple-wide.c new file mode 100644 index 00000000000..09e5e1fe089 --- /dev/null +++ b/progs/trivial/line-stipple-wide.c @@ -0,0 +1,148 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glEnable(GL_LINE_STIPPLE); + glLineStipple( 5, 0xfffe ); + glLineWidth( 4 ); + + glBegin(GL_LINES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/line-userclip-clip.c b/progs/trivial/line-userclip-clip.c index b24d8452bcd..5c9c1b3b291 100644 --- a/progs/trivial/line-userclip-clip.c +++ b/progs/trivial/line-userclip-clip.c @@ -124,7 +124,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/line-userclip-nop-clip.c b/progs/trivial/line-userclip-nop-clip.c index e2e0b85a522..a6ee44fbd0f 100644 --- a/progs/trivial/line-userclip-nop-clip.c +++ b/progs/trivial/line-userclip-nop-clip.c @@ -124,7 +124,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/line-userclip-nop.c b/progs/trivial/line-userclip-nop.c index eacee069789..cebea5f4812 100644 --- a/progs/trivial/line-userclip-nop.c +++ b/progs/trivial/line-userclip-nop.c @@ -124,7 +124,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/line-userclip.c b/progs/trivial/line-userclip.c index 6af91431d08..ecfd28cac71 100644 --- a/progs/trivial/line-userclip.c +++ b/progs/trivial/line-userclip.c @@ -124,7 +124,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/line-wide.c b/progs/trivial/line-wide.c new file mode 100644 index 00000000000..543b1f67f34 --- /dev/null +++ b/progs/trivial/line-wide.c @@ -0,0 +1,147 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glLineWidth(4.0); + + glBegin(GL_LINES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + + + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/line.c b/progs/trivial/line.c index 58bad91b05a..de5f9274e41 100644 --- a/progs/trivial/line.c +++ b/progs/trivial/line.c @@ -71,15 +71,20 @@ static void Draw(void) { glClear(GL_COLOR_BUFFER_BIT); - glBegin(GL_LINE_STRIP); + glBegin(GL_LINES); glColor3f(0,0,.7); glVertex3f( 0.9, -0.9, -30.0); glColor3f(.8,0,0); glVertex3f( 0.9, 0.9, -30.0); + + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + + glColor3f(0,.9,0); glVertex3f(-0.9, 0.0, -30.0); - /* Repeat the first vertex - don't have lineloop support in GS yet - */ glColor3f(0,0,.7); glVertex3f( 0.9, -0.9, -30.0); glEnd(); diff --git a/progs/trivial/lineloop-clip.c b/progs/trivial/lineloop-clip.c index d8645ee3477..211056720fe 100644 --- a/progs/trivial/lineloop-clip.c +++ b/progs/trivial/lineloop-clip.c @@ -118,7 +118,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/lineloop-elts.c b/progs/trivial/lineloop-elts.c new file mode 100644 index 00000000000..96da8e4ad6b --- /dev/null +++ b/progs/trivial/lineloop-elts.c @@ -0,0 +1,120 @@ +/* Test rebasing */ + +#include <assert.h> +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#define GL_GLEXT_PROTOTYPES +#include <GL/glut.h> + +GLfloat verts[][4] = { + { 0.9, -0.9, 0.0, 1.0 }, + { 0.9, 0.9, 0.0, 1.0 }, + { -0.9, 0.9, 0.0, 1.0 }, + { -0.9, -0.9, 0.0, 1.0 }, +}; + +GLubyte color[][4] = { + { 0x00, 0x00, 0xff, 0x00 }, + { 0x00, 0xff, 0x00, 0x00 }, + { 0xff, 0x00, 0x00, 0x00 }, + { 0xff, 0xff, 0xff, 0x00 }, +}; + +GLuint indices[] = { 1, 2, 3 }; + +static void Init( void ) +{ + GLint errno; + GLuint prognum; + + static const char *prog1 = + "!!ARBvp1.0\n" + "MOV result.color, vertex.color;\n" + "MOV result.position, vertex.position;\n" + "END\n"; + + glGenProgramsARB(1, &prognum); + glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prognum); + glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, + strlen(prog1), (const GLubyte *) prog1); + + assert(glIsProgramARB(prognum)); + errno = glGetError(); + printf("glGetError = %d\n", errno); + if (errno != GL_NO_ERROR) + { + GLint errorpos; + + glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorpos); + printf("errorpos: %d\n", errorpos); + printf("%s\n", (char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB)); + } + + + glEnableClientState( GL_VERTEX_ARRAY ); + glEnableClientState( GL_COLOR_ARRAY ); + glVertexPointer( 3, GL_FLOAT, sizeof(verts[0]), verts ); + glColorPointer( 4, GL_UNSIGNED_BYTE, 0, color ); + +} + + + +static void Display( void ) +{ + glClearColor(0.3, 0.3, 0.3, 1); + glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); + + glEnable(GL_VERTEX_PROGRAM_NV); + + /* Should have min_index == 1, maybe force a rebase: + */ + glDrawElements( GL_LINE_LOOP, 3, GL_UNSIGNED_INT, indices ); + + glFlush(); +} + + +static void Reshape( int width, int height ) +{ + glViewport( 0, 0, width, height ); + glMatrixMode( GL_PROJECTION ); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode( GL_MODELVIEW ); + glLoadIdentity(); + /*glTranslatef( 0.0, 0.0, -15.0 );*/ +} + + +static void Key( unsigned char key, int x, int y ) +{ + (void) x; + (void) y; + switch (key) { + case 27: + exit(0); + break; + } + glutPostRedisplay(); +} + + + + +int main( int argc, char *argv[] ) +{ + glutInit( &argc, argv ); + glutInitWindowPosition( 0, 0 ); + glutInitWindowSize( 250, 250 ); + glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH ); + glutCreateWindow(argv[0]); + glutReshapeFunc( Reshape ); + glutKeyboardFunc( Key ); + glutDisplayFunc( Display ); + Init(); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/lineloop.c b/progs/trivial/lineloop.c index 7500c54fc26..fab7d1ea022 100644 --- a/progs/trivial/lineloop.c +++ b/progs/trivial/lineloop.c @@ -118,7 +118,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/linestrip-clip.c b/progs/trivial/linestrip-clip.c new file mode 100644 index 00000000000..acab0f4e1cf --- /dev/null +++ b/progs/trivial/linestrip-clip.c @@ -0,0 +1,141 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glBegin(GL_LINE_STRIP); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + + glColor3f(0,.9,0); + glVertex3f(-1.9, 0.0, -30.0); + + glColor3f(0,0,.7); + glVertex3f( 0.8, -0.8, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/linestrip-flat-stipple.c b/progs/trivial/linestrip-flat-stipple.c new file mode 100644 index 00000000000..b691437346a --- /dev/null +++ b/progs/trivial/linestrip-flat-stipple.c @@ -0,0 +1,142 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glShadeModel(GL_FLAT); + glEnable(GL_LINE_STIPPLE); + glLineStipple( 5, 0xfffe ); + + glBegin(GL_LINE_STRIP); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/linestrip-stipple-wide.c b/progs/trivial/linestrip-stipple-wide.c new file mode 100644 index 00000000000..53dfa554e98 --- /dev/null +++ b/progs/trivial/linestrip-stipple-wide.c @@ -0,0 +1,142 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glEnable(GL_LINE_STIPPLE); + glLineStipple( 5, 0xfffe ); + glLineWidth( 4 ); + + glBegin(GL_LINE_STRIP); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/linestrip-stipple.c b/progs/trivial/linestrip-stipple.c new file mode 100644 index 00000000000..5933d1a136f --- /dev/null +++ b/progs/trivial/linestrip-stipple.c @@ -0,0 +1,141 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glEnable(GL_LINE_STIPPLE); + glLineStipple( 5, 0xfffe ); + + glBegin(GL_LINE_STRIP); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/linestrip.c b/progs/trivial/linestrip.c new file mode 100644 index 00000000000..06dd1c10872 --- /dev/null +++ b/progs/trivial/linestrip.c @@ -0,0 +1,138 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glBegin(GL_LINE_STRIP); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/pgon-mode.c b/progs/trivial/pgon-mode.c new file mode 100644 index 00000000000..db586386196 --- /dev/null +++ b/progs/trivial/pgon-mode.c @@ -0,0 +1,136 @@ +/** + * Test glPolygonMode. + * A tri-strip w/ two tris is drawn so that the first tri is front-facing + * but the second tri is back-facing. + * Set glPolygonMode differently for the front/back faces + * + */ + + +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <GL/glut.h> + +static int Win; +static GLfloat Zrot = 0; +static GLboolean FrontFillBackUnfilled = GL_TRUE; +static GLboolean Lines = GL_TRUE; + + +static void +Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + if (FrontFillBackUnfilled) { + if (Lines) { + printf("FrontMode = FILL, BackMode = LINE\n"); + glPolygonMode(GL_BACK, GL_LINE); + } + else { + printf("FrontMode = FILL, BackMode = POINT\n"); + glPolygonMode(GL_BACK, GL_POINT); + } + glPolygonMode(GL_FRONT, GL_FILL); + } + else { + if (Lines) { + printf("FrontMode = LINE, BackMode = FILL\n"); + glPolygonMode(GL_FRONT, GL_LINE); + } + else { + printf("FrontMode = POINT, BackMode = FILL\n"); + glPolygonMode(GL_FRONT, GL_POINT); + } + glPolygonMode(GL_BACK, GL_FILL); + } + + glPushMatrix(); + glRotatef(Zrot, 0, 0, 1); + + glBegin(GL_TRIANGLE_STRIP); + glVertex2f(-1, 0); + glVertex2f( 1, 0); + glVertex2f(0, 1); + glVertex2f(0, -1); + glEnd(); + + glPopMatrix(); + + glutSwapBuffers(); +} + + +static void +Reshape(int width, int height) +{ + glViewport(0, 0, width, height); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -15.0); +} + + +static void +Key(unsigned char key, int x, int y) +{ + const GLfloat step = 3.0; + (void) x; + (void) y; + switch (key) { + case 'p': + FrontFillBackUnfilled = !FrontFillBackUnfilled; + break; + case 'l': + Lines = !Lines; + break; + case 'z': + Zrot -= step; + break; + case 'Z': + Zrot += step; + break; + case 27: + glutDestroyWindow(Win); + exit(0); + break; + } + glutPostRedisplay(); +} + + +static void +Init(void) +{ + printf("GL_RENDERER = %s\n", (char*) glGetString(GL_RENDERER)); + + glLineWidth(3.0); + glPointSize(3.0); + + glColor4f(1, 1, 1, 0.8); + glEnable(GL_BLEND); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + + printf("Press 'p' to toggle polygon mode\n"); +} + + +int +main(int argc, char *argv[]) +{ + glutInit(&argc, argv); + glutInitWindowPosition(0, 0); + glutInitWindowSize(400, 400); + glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); + Win = glutCreateWindow(argv[0]); + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + Init(); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/point-clip.c b/progs/trivial/point-clip.c index 32792047c64..7fec54e1db9 100644 --- a/progs/trivial/point-clip.c +++ b/progs/trivial/point-clip.c @@ -120,7 +120,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/point-param.c b/progs/trivial/point-param.c index 02500cd34e8..96544a05255 100644 --- a/progs/trivial/point-param.c +++ b/progs/trivial/point-param.c @@ -138,7 +138,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/point-sprite.c b/progs/trivial/point-sprite.c new file mode 100644 index 00000000000..583bdca1b71 --- /dev/null +++ b/progs/trivial/point-sprite.c @@ -0,0 +1,174 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + +#define SIZE 16 + { + GLubyte tex2d[SIZE][SIZE][3]; + GLint s, t; + + for (s = 0; s < SIZE; s++) { + for (t = 0; t < SIZE; t++) { +#if 1 + tex2d[t][s][0] = (s < SIZE/2) ? 0 : 255; + tex2d[t][s][1] = (t < SIZE/2) ? 0 : 255; + tex2d[t][s][2] = 0; +#else + tex2d[t][s][0] = s*255/(SIZE-1); + tex2d[t][s][1] = t*255/(SIZE-1); + tex2d[t][s][2] = 0; +#endif + } + } + + glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glTexImage2D(GL_TEXTURE_2D, 0, 3, SIZE, SIZE, 0, + GL_RGB, GL_UNSIGNED_BYTE, tex2d); + glPixelStorei(GL_UNPACK_ALIGNMENT, 4); + glEnable(GL_TEXTURE_2D); + } + + glEnable(GL_POINT_SPRITE); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glPointSize(16.0); + + glBegin(GL_POINTS); + glColor3f(1,0,0); + glVertex3f( 0.6, -0.6, -30.0); + glColor3f(1,1,0); + glVertex3f( 0.6, 0.6, -30.0); + glColor3f(1,0,1); + glVertex3f(-0.6, 0.6, -30.0); + glColor3f(0,1,1); + glVertex3f(-0.6, -0.6, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/point-wide-smooth.c b/progs/trivial/point-wide-smooth.c new file mode 100644 index 00000000000..55cbcaec70b --- /dev/null +++ b/progs/trivial/point-wide-smooth.c @@ -0,0 +1,145 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glPointSize(8.0); + + glEnable(GL_POINT_SMOOTH); + glEnable(GL_BLEND); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + + glBegin(GL_POINTS); + glColor3f(1,0,0); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(1,1,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(1,0,1); + glVertex3f(-0.9, 0.9, -30.0); + glColor3f(0,1,1); + glVertex3f(-0.9, -0.9, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB | GLUT_ALPHA; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/point-wide.c b/progs/trivial/point-wide.c index 473ca043f1d..265b20097b1 100644 --- a/progs/trivial/point-wide.c +++ b/progs/trivial/point-wide.c @@ -34,6 +34,7 @@ GLenum doubleBuffer; + static void Init(void) { fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); @@ -70,6 +71,7 @@ static void Key(unsigned char key, int x, int y) static void Draw(void) { glClear(GL_COLOR_BUFFER_BIT); + glDisable(GL_DEPTH_TEST); glPointSize(8.0); @@ -122,7 +124,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/point.c b/progs/trivial/point.c index 87465bfb2c1..8dabfb6ca64 100644 --- a/progs/trivial/point.c +++ b/progs/trivial/point.c @@ -120,7 +120,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/poly-flat-clip.c b/progs/trivial/poly-flat-clip.c new file mode 100644 index 00000000000..72c2a29a0d2 --- /dev/null +++ b/progs/trivial/poly-flat-clip.c @@ -0,0 +1,140 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glShadeModel(GL_FLAT); + + + glBegin(GL_POLYGON); + glColor3f(1,0,0); + glVertex3f( 0, 0, -30.0); + glColor3f(1,1,0); + glVertex3f( 1.3, 1.1, -30.0); + glColor3f(1,0,1); + glVertex3f(-.9, .9, -30.0); + glColor3f(0,1,1); + glVertex3f(-1.1, -1.3, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/poly-flat-unfilled-clip.c b/progs/trivial/poly-flat-unfilled-clip.c new file mode 100644 index 00000000000..d3a14a516a4 --- /dev/null +++ b/progs/trivial/poly-flat-unfilled-clip.c @@ -0,0 +1,144 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glShadeModel(GL_FLAT); + + glPolygonMode(GL_FRONT, GL_LINE); + glPolygonMode(GL_BACK, GL_LINE); + glLineWidth(4.0); + + + glBegin(GL_POLYGON); + glColor3f(1,0,0); + glVertex3f( 0, 0, -30.0); + glColor3f(1,1,0); + glVertex3f( 1.3, 1.1, -30.0); + glColor3f(1,0,1); + glVertex3f(-.9, .9, -30.0); + glColor3f(0,1,1); + glVertex3f(-1.1, -1.3, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/poly-flat.c b/progs/trivial/poly-flat.c index 747b24dc0ce..a847d6828a7 100644 --- a/progs/trivial/poly-flat.c +++ b/progs/trivial/poly-flat.c @@ -122,7 +122,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/poly-unfilled.c b/progs/trivial/poly-unfilled.c index e0ae463b083..ae092a830ab 100644 --- a/progs/trivial/poly-unfilled.c +++ b/progs/trivial/poly-unfilled.c @@ -121,7 +121,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/poly.c b/progs/trivial/poly.c index bdb9e27aa91..2f254de4815 100644 --- a/progs/trivial/poly.c +++ b/progs/trivial/poly.c @@ -120,7 +120,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/psb_context.c b/progs/trivial/psb_context.c new file mode 100644 index 00000000000..e69de29bb2d --- /dev/null +++ b/progs/trivial/psb_context.c diff --git a/progs/trivial/quad-clip-all-vertices.c b/progs/trivial/quad-clip-all-vertices.c index 019ef0c479a..3e0f3d94948 100644 --- a/progs/trivial/quad-clip-all-vertices.c +++ b/progs/trivial/quad-clip-all-vertices.c @@ -120,7 +120,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/quad-clip-nearplane.c b/progs/trivial/quad-clip-nearplane.c index be9b9c619ae..1e8056c474b 100644 --- a/progs/trivial/quad-clip-nearplane.c +++ b/progs/trivial/quad-clip-nearplane.c @@ -133,7 +133,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/quad-clip.c b/progs/trivial/quad-clip.c index 9f3a45caec3..504fef3dc59 100644 --- a/progs/trivial/quad-clip.c +++ b/progs/trivial/quad-clip.c @@ -120,7 +120,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/quad-degenerate.c b/progs/trivial/quad-degenerate.c index b14b0f1d879..83047408573 100644 --- a/progs/trivial/quad-degenerate.c +++ b/progs/trivial/quad-degenerate.c @@ -125,7 +125,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/quad-flat.c b/progs/trivial/quad-flat.c index d6e9f021206..bd8be7c43e3 100644 --- a/progs/trivial/quad-flat.c +++ b/progs/trivial/quad-flat.c @@ -130,7 +130,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/quad-offset-factor.c b/progs/trivial/quad-offset-factor.c index 861d3461c04..90943d908ff 100644 --- a/progs/trivial/quad-offset-factor.c +++ b/progs/trivial/quad-offset-factor.c @@ -27,11 +27,6 @@ #include <stdlib.h> #include <GL/glut.h> - -#define CI_OFFSET_1 16 -#define CI_OFFSET_2 32 - - GLenum doubleBuffer; static void Init(void) @@ -45,7 +40,6 @@ static void Init(void) static void Reshape(int width, int height) { - glViewport(0, 0, (GLint)width, (GLint)height); glMatrixMode(GL_PROJECTION); @@ -56,7 +50,6 @@ static void Reshape(int width, int height) static void Key(unsigned char key, int x, int y) { - switch (key) { case 27: exit(1); @@ -75,7 +68,6 @@ static void quad( float half ) glVertex3f(-half/9.0, half/9.0, -25.0 - half); glVertex3f(-half/9.0, -half/9.0, -25.0 - half); glEnd(); - } static void Draw(void) @@ -83,27 +75,24 @@ static void Draw(void) glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glEnable(GL_DEPTH_TEST); - - + /* red: offset back */ glEnable(GL_POLYGON_OFFSET_FILL); glPolygonOffset(1, 0); - glColor3f(1,0,0); quad(9); + /* green: no offset */ glDisable(GL_POLYGON_OFFSET_FILL); glColor3f(0,1,0); quad(6); - + /* black: offset zero, should not be visible because of z test */ glEnable(GL_POLYGON_OFFSET_FILL); glPolygonOffset(0, 0); - - /* Black - should not be visible - */ glColor3f(0,0,0); quad(6); + /* blue: offset forward */ glEnable(GL_POLYGON_OFFSET_FILL); glPolygonOffset(-1, 0); glColor3f(0,0,1); @@ -149,7 +138,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB | GLUT_DEPTH; + type = GLUT_RGB | GLUT_ALPHA | GLUT_DEPTH; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); @@ -163,5 +152,5 @@ int main(int argc, char **argv) glutKeyboardFunc(Key); glutDisplayFunc(Draw); glutMainLoop(); - return 0; + return 0; } diff --git a/progs/trivial/quad-offset-unfilled.c b/progs/trivial/quad-offset-unfilled.c index 1cecf3c1cef..1ad44cdcaec 100644 --- a/progs/trivial/quad-offset-unfilled.c +++ b/progs/trivial/quad-offset-unfilled.c @@ -72,6 +72,8 @@ static void Draw(void) glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glEnable(GL_DEPTH_TEST); + glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); + glEnable(GL_POLYGON_OFFSET_FILL); @@ -95,7 +97,7 @@ static void Draw(void) glVertex3f(-0.6, -0.6, -35.0); glEnd(); - glEnable(GL_POLYGON_OFFSET_FILL); + glEnable(GL_POLYGON_OFFSET_LINE); glPolygonOffset(-1, 0); glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); @@ -149,7 +151,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB | GLUT_DEPTH; + type = GLUT_RGB | GLUT_ALPHA | GLUT_DEPTH; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/quad-offset-units.c b/progs/trivial/quad-offset-units.c index 5c41be308ee..d5db21469e6 100644 --- a/progs/trivial/quad-offset-units.c +++ b/progs/trivial/quad-offset-units.c @@ -27,11 +27,6 @@ #include <stdlib.h> #include <GL/glut.h> - -#define CI_OFFSET_1 16 -#define CI_OFFSET_2 32 - - GLenum doubleBuffer; static void Init(void) @@ -45,7 +40,6 @@ static void Init(void) static void Reshape(int width, int height) { - glViewport(0, 0, (GLint)width, (GLint)height); glMatrixMode(GL_PROJECTION); @@ -56,7 +50,6 @@ static void Reshape(int width, int height) static void Key(unsigned char key, int x, int y) { - switch (key) { case 27: exit(1); @@ -75,7 +68,6 @@ static void quad( float half ) glVertex3f(-half/9.0, half/9.0, -25.0 - half); glVertex3f(-half/9.0, -half/9.0, -25.0 - half); glEnd(); - } static void Draw(void) @@ -83,27 +75,26 @@ static void Draw(void) glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glEnable(GL_DEPTH_TEST); - - + /* red: offset back */ glEnable(GL_POLYGON_OFFSET_FILL); glPolygonOffset(0, 4); - glColor3f(1,0,0); quad(9); + /* black: no offset */ glDisable(GL_POLYGON_OFFSET_FILL); glColor3f(0,0,0); quad(6); + /* green: offset 0 (this should obscure the black quad) */ glEnable(GL_POLYGON_OFFSET_FILL); glPolygonOffset(0, 0); - glDepthFunc( GL_EQUAL ); glColor3f(0,1,0); quad(6); - glDepthFunc( GL_LESS ); - + /* blue: offset forward */ + glDepthFunc( GL_LESS ); glPolygonOffset(0, -4); glColor3f(0,0,1); quad(3); @@ -148,7 +139,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB | GLUT_DEPTH; + type = GLUT_RGB | GLUT_ALPHA | GLUT_DEPTH; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); @@ -162,5 +153,5 @@ int main(int argc, char **argv) glutKeyboardFunc(Key); glutDisplayFunc(Draw); glutMainLoop(); - return 0; + return 0; } diff --git a/progs/trivial/quad-tex-2d.c b/progs/trivial/quad-tex-2d.c index 70b9fbf8c61..97c9fc54d86 100644 --- a/progs/trivial/quad-tex-2d.c +++ b/progs/trivial/quad-tex-2d.c @@ -27,11 +27,11 @@ #include <stdlib.h> #include <GL/glut.h> - -#define CI_OFFSET_1 16 -#define CI_OFFSET_2 32 - +static GLenum Target = GL_TEXTURE_2D; +static GLenum Filter = GL_NEAREST; GLenum doubleBuffer; +static float Rot = 0; +static int win = 0; static void Init(void) { @@ -41,7 +41,7 @@ static void Init(void) glClearColor(0.0, 0.0, 1.0, 0.0); -#define SIZE 16 +#define SIZE 32 { GLubyte tex2d[SIZE][SIZE][3]; GLint s, t; @@ -60,59 +60,77 @@ static void Init(void) } } + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + + if (Target == GL_TEXTURE_1D) + glTexImage1D(Target, 0, 3, SIZE, 0, GL_RGB, GL_UNSIGNED_BYTE, tex2d); + else + glTexImage2D(Target, 0, 3, SIZE, SIZE, 0, + GL_RGB, GL_UNSIGNED_BYTE, tex2d); + + glEnable(Target); glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameterf(Target, GL_TEXTURE_WRAP_R, GL_REPEAT); + glTexParameterf(Target, GL_TEXTURE_MIN_FILTER, Filter); + glTexParameterf(Target, GL_TEXTURE_MAG_FILTER, Filter); - glPixelStorei(GL_UNPACK_ALIGNMENT, 1); - glTexImage2D(GL_TEXTURE_2D, 0, 3, SIZE, SIZE, 0, - GL_RGB, GL_UNSIGNED_BYTE, tex2d); glPixelStorei(GL_UNPACK_ALIGNMENT, 4); - glEnable(GL_TEXTURE_2D); } - } static void Reshape(int width, int height) { - - glViewport(0, 0, (GLint)width, (GLint)height); - - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); - glMatrixMode(GL_MODELVIEW); + glViewport(0, 0, (GLint)width, (GLint)height); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); +#if 0 + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); +#else + glFrustum(-1, 1, -1, 1, 10, 20); +#endif + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0, 0, -15); } static void Key(unsigned char key, int x, int y) { - - switch (key) { - case 27: - exit(1); - default: - return; - } - - glutPostRedisplay(); + switch (key) { + case 'r': + Rot += 10.0; + break; + case 'R': + Rot -= 10.0; + break; + case 27: + glutDestroyWindow(win); + exit(0); + default: + return; + } + glutPostRedisplay(); } static void Draw(void) { glClear(GL_COLOR_BUFFER_BIT); + glPushMatrix(); + glRotatef(Rot, 0, 1, 0); + glBegin(GL_QUADS); glTexCoord2f(1,0); - glVertex3f( 0.9, -0.9, -30.0); + glVertex3f( 0.9, -0.9, 0.0); glTexCoord2f(1,1); - glVertex3f( 0.9, 0.9, -30.0); + glVertex3f( 0.9, 0.9, 0.0); glTexCoord2f(0,1); - glVertex3f(-0.9, 0.9, -30.0); + glVertex3f(-0.9, 0.9, 0.0); glTexCoord2f(0,0); - glVertex3f(-0.9, -0.9, -30.0); + glVertex3f(-0.9, -0.9, 0.0); glEnd(); + glPopMatrix(); + glFlush(); if (doubleBuffer) { @@ -155,7 +173,8 @@ int main(int argc, char **argv) type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); - if (glutCreateWindow("First Tri") == GL_FALSE) { + win = glutCreateWindow("First Tri"); + if (!win) { exit(1); } @@ -165,5 +184,5 @@ int main(int argc, char **argv) glutKeyboardFunc(Key); glutDisplayFunc(Draw); glutMainLoop(); - return 0; + return 0; } diff --git a/progs/trivial/quad-tex-3d.c b/progs/trivial/quad-tex-3d.c index 0b2dcc08a5f..fd02d9d6adc 100644 --- a/progs/trivial/quad-tex-3d.c +++ b/progs/trivial/quad-tex-3d.c @@ -159,7 +159,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/quad-tex-alpha.c b/progs/trivial/quad-tex-alpha.c new file mode 100644 index 00000000000..cd73f013eb0 --- /dev/null +++ b/progs/trivial/quad-tex-alpha.c @@ -0,0 +1,170 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); + +#define SIZE 16 + { + GLubyte tex2d[SIZE][SIZE][4]; + GLint s, t; + + for (s = 0; s < SIZE; s++) { + for (t = 0; t < SIZE; t++) { + tex2d[t][s][0] = (s < SIZE/2) ? 0 : 255; + tex2d[t][s][1] = (t < SIZE/2) ? 0 : 255; + tex2d[t][s][2] = 0; + tex2d[t][s][3] = ((t^s) & 3) * 63; + } + } + + glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glTexImage2D(GL_TEXTURE_2D, 0, 4, SIZE, SIZE, 0, + GL_RGBA, GL_UNSIGNED_BYTE, tex2d); + glPixelStorei(GL_UNPACK_ALIGNMENT, 4); + glEnable(GL_TEXTURE_2D); + } +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glDisable(GL_DEPTH_TEST); + glDisable(GL_STENCIL_TEST); + glEnable(GL_ALPHA_TEST); + glAlphaFunc(GL_GEQUAL, 0.5); + + glBegin(GL_QUADS); + glTexCoord2f(1,0); + glVertex3f( 0.9, -0.9, -30.0); + glTexCoord2f(1,1); + glVertex3f( 0.9, 0.9, -30.0); + glTexCoord2f(0,1); + glVertex3f(-0.9, 0.9, -30.0); + glTexCoord2f(0,0); + glVertex3f(-0.9, -0.9, -30.0); + glEnd(); + + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/quad-unfilled-clip.c b/progs/trivial/quad-unfilled-clip.c new file mode 100644 index 00000000000..e298bd455bf --- /dev/null +++ b/progs/trivial/quad-unfilled-clip.c @@ -0,0 +1,139 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); + + glBegin(GL_QUADS); + glColor3f(1,0,0); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(1,1,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(1,0,1); + glVertex3f(-1.9, 0.9, -30.0); + glColor3f(0,1,1); + glVertex3f(-0.9, -0.9, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/quad-unfilled-stipple.c b/progs/trivial/quad-unfilled-stipple.c new file mode 100644 index 00000000000..2036aacbaab --- /dev/null +++ b/progs/trivial/quad-unfilled-stipple.c @@ -0,0 +1,142 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); + + glEnable(GL_LINE_STIPPLE); + glLineStipple( 5, 0xfffe ); + + glBegin(GL_QUADS); + glColor3f(1,0,0); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(1,1,1); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,1,0); + glVertex3f(-0.9, 0.9, -30.0); + glColor3f(0,0,0); + glVertex3f(-0.9, -0.9, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/quad-unfilled.c b/progs/trivial/quad-unfilled.c index 9d63d2dfb95..9d0087ce08d 100644 --- a/progs/trivial/quad-unfilled.c +++ b/progs/trivial/quad-unfilled.c @@ -121,7 +121,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/quads.c b/progs/trivial/quads.c index 1ca82cd9f8b..307a9e07209 100644 --- a/progs/trivial/quads.c +++ b/progs/trivial/quads.c @@ -138,7 +138,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/quadstrip-cont.c b/progs/trivial/quadstrip-cont.c new file mode 100644 index 00000000000..c6c8f69f8ca --- /dev/null +++ b/progs/trivial/quadstrip-cont.c @@ -0,0 +1,162 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glBegin(GL_QUAD_STRIP); + glColor3f(1,0,0); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(1,1,0); + glVertex3f( 0.9, 0.9, -30.0); + + glColor3f(1,0,0); + glVertex3f( 0.1, -0.8, -30.0); + glColor3f(1,1,0); + glVertex3f( 0.1, 0.8, -30.0); + + glColor3f(0,1,1); + glVertex3f(-0.1, -0.9, -30.0); + glColor3f(1,0,1); + glVertex3f(-0.1, 0.9, -30.0); + + glColor3f(0,1,1); + glVertex3f(-0.9, -0.8, -30.0); + glColor3f(1,0,1); + glVertex3f(-0.9, 0.8, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static void +idle(void) +{ + glutPostRedisplay(); +} + + +static void +visible(int vis) +{ + if (vis == GLUT_VISIBLE) + glutIdleFunc(idle); + else + glutIdleFunc(NULL); +} + + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutVisibilityFunc(visible); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/quadstrip-flat.c b/progs/trivial/quadstrip-flat.c index 061a0e409e4..d02135f702a 100644 --- a/progs/trivial/quadstrip-flat.c +++ b/progs/trivial/quadstrip-flat.c @@ -132,7 +132,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/quadstrip.c b/progs/trivial/quadstrip.c index 342463f1a24..ff8644be09e 100644 --- a/progs/trivial/quadstrip.c +++ b/progs/trivial/quadstrip.c @@ -126,7 +126,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/readpixels.c b/progs/trivial/readpixels.c new file mode 100644 index 00000000000..783468ae2f6 --- /dev/null +++ b/progs/trivial/readpixels.c @@ -0,0 +1,101 @@ +/* + * glRead/DrawPixels test + */ + + +#define GL_GLEXT_PROTOTYPES +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + +static int Width = 250, Height = 250; +static GLfloat Zoom = 1.0; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + glClearColor(0.3, 0.1, 0.3, 0.0); +} + +static void Reshape(int width, int height) +{ + Width = width / 2; + Height = height; + /* draw on left half (we'll read that area) */ + glViewport(0, 0, Width, height); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + switch (key) { + case 27: + exit(0); + default: + return; + } + glutPostRedisplay(); +} + +static void Draw(void) +{ + GLfloat *image = (GLfloat *) malloc(Width * Height * 4 * sizeof(GLfloat)); + + glClear(GL_COLOR_BUFFER_BIT); + + glBegin(GL_TRIANGLES); + glColor3f(.8,0,0); + glVertex3f(-0.9, -0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(0,0,.7); + glVertex3f( 0.0, 0.9, -30.0); + glEnd(); + + glBegin(GL_QUADS); + glColor3f(1, 1, 1); + glVertex2f(-1.0, -1.0); + glVertex2f(-0.9, -1.0); + glVertex2f(-0.9, -0.9); + glVertex2f(-1.0, -0.9); + glEnd(); + + glReadPixels(0, 0, Width, Height, GL_RGBA, GL_FLOAT, image); + printf("Pixel(0,0) = %f, %f, %f, %f\n", + image[0], image[1], image[2], image[3]); + /* draw to right half of window */ + glWindowPos2iARB(Width, 0); + glPixelZoom(Zoom, Zoom); + glDrawPixels(Width, Height, GL_RGBA, GL_FLOAT, image); + free(image); + + glutSwapBuffers(); +} + +int main(int argc, char **argv) +{ + glutInit(&argc, argv); + glutInitWindowPosition(0, 0); + glutInitWindowSize(Width*2, Height); + glutInitDisplayMode(GLUT_RGB | GLUT_ALPHA | GLUT_DOUBLE); + if (glutCreateWindow(argv[0]) == GL_FALSE) { + exit(1); + } + + if (argc > 1) + Zoom = atof(argv[1]); + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-alpha-tex.c b/progs/trivial/tri-alpha-tex.c new file mode 100644 index 00000000000..776f39dcc35 --- /dev/null +++ b/progs/trivial/tri-alpha-tex.c @@ -0,0 +1,179 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); + +#define SIZE 16 + { + GLubyte tex2d[SIZE][SIZE][4]; + GLint s, t; + + for (s = 0; s < SIZE; s++) { + for (t = 0; t < SIZE; t++) { + tex2d[t][s][0] = (s < SIZE/2) ? 0 : 255; + tex2d[t][s][1] = (t < SIZE/2) ? 0 : 255; + tex2d[t][s][2] = 0; + tex2d[t][s][3] = ((t^s) & 3) * 63; + } + } + + glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glTexImage2D(GL_TEXTURE_2D, 0, 4, SIZE, SIZE, 0, + GL_RGBA, GL_UNSIGNED_BYTE, tex2d); + glPixelStorei(GL_UNPACK_ALIGNMENT, 4); + glEnable(GL_TEXTURE_2D); + } +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glDisable(GL_DEPTH_TEST); + glDisable(GL_STENCIL_TEST); + glEnable(GL_ALPHA_TEST); + glAlphaFunc(GL_GEQUAL, 0.5); + + glBegin(GL_QUADS); + glTexCoord2f(1,0); + glVertex3f( 0.9, -0.9, -30.0); + glTexCoord2f(1,1); + glVertex3f( 0.9, 0.9, -30.0); + glTexCoord2f(0,1); + glVertex3f(-0.9, 0.9, -30.0); + glTexCoord2f(0,0); + glVertex3f(-0.9, -0.9, -30.0); + glEnd(); +#if 0 + glBegin(GL_TRIANGLES); + glColor4f(0,0,.7,1); + glVertex3f( 0.9, -0.9, -30.0); + glColor4f(.8,0,0,.5); + glVertex3f( 0.9, 0.9, -30.0); + glColor4f(0,.9,0,0); + glVertex3f(-0.9, 0.0, -30.0); + glEnd(); +#endif + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-alpha.c b/progs/trivial/tri-alpha.c new file mode 100644 index 00000000000..90cfdbe199d --- /dev/null +++ b/progs/trivial/tri-alpha.c @@ -0,0 +1,141 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glDisable(GL_DEPTH_TEST); + glDisable(GL_STENCIL_TEST); + glEnable(GL_ALPHA_TEST); + glAlphaFunc(GL_GEQUAL, 0.5); + + glBegin(GL_TRIANGLES); + glColor4f(0,0,.7,1); + glVertex3f( 0.9, -0.9, -30.0); + glColor4f(.8,0,0,.5); + glVertex3f( 0.9, 0.9, -30.0); + glColor4f(0,.9,0,0); + glVertex3f(-0.9, 0.0, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-blend-color.c b/progs/trivial/tri-blend-color.c new file mode 100644 index 00000000000..b9a539410bc --- /dev/null +++ b/progs/trivial/tri-blend-color.c @@ -0,0 +1,141 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClearColor(0.0, 0.0, 1.0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + + glEnable(GL_BLEND); + glBlendEquation(GL_FUNC_ADD); + glBlendColor(1.0, 0, 0, 0); + glBlendFunc(GL_CONSTANT_COLOR, GL_SRC_COLOR); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-blend-max.c b/progs/trivial/tri-blend-max.c new file mode 100644 index 00000000000..ebc241c1c16 --- /dev/null +++ b/progs/trivial/tri-blend-max.c @@ -0,0 +1,145 @@ +/* + * Copyright (c) 1993-1997, Silicon Graphics, Inc. + * ALL RIGHTS RESERVED + * Permission to use, copy, modify, and distribute this software for + * any purpose and without fee is hereby granted, provided that the above + * copyright notice appear in all copies and that both the copyright notice + * and this permission notice appear in supporting documentation, and that + * the name of Silicon Graphics, Inc. not be used in advertising + * or publicity pertaining to distribution of the software without specific, + * written prior permission. + * + * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" + * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR + * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON + * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT, + * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY + * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, + * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF + * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN + * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE + * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE. + * + * US Government Users Restricted Rights + * Use, duplication, or disclosure by the Government is subject to + * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph + * (c)(1)(ii) of the Rights in Technical Data and Computer Software + * clause at DFARS 252.227-7013 and/or in similar or successor + * clauses in the FAR or the DOD or NASA FAR Supplement. + * Unpublished-- rights reserved under the copyright laws of the + * United States. Contractor/manufacturer is Silicon Graphics, + * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311. + * + * OpenGL(R) is a registered trademark of Silicon Graphics, Inc. + */ + +/* + * alpha.c + * This program draws several overlapping filled polygons + * to demonstrate the effect order has on alpha blending results. + * Use the 't' key to toggle the order of drawing polygons. + */ +#include <GL/glut.h> +#include <stdlib.h> + +static int leftFirst = GL_TRUE; + +/* Initialize alpha blending function. + */ +static void init(void) +{ + glBlendEquation (GL_MAX); + glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + glShadeModel (GL_FLAT); + glClearColor (1.0, 0.0, 0.0, 0.0); +} + +static void drawLeftTriangle(void) +{ + /* draw yellow triangle on LHS of screen */ + + glBegin (GL_TRIANGLES); + glColor4f(1.0, 1.0, 0.0, 0.75); + glVertex3f(0.1, 0.9, 0.0); + glVertex3f(0.1, 0.1, 0.0); + glVertex3f(0.7, 0.5, 0.0); + glEnd(); +} + +static void drawRightTriangle(void) +{ + /* draw cyan triangle on RHS of screen */ + + glEnable (GL_BLEND); + glBegin (GL_TRIANGLES); + glColor4f(0.0, 1.0, 1.0, 0.75); + glVertex3f(0.9, 0.9, 0.0); + glVertex3f(0.3, 0.5, 0.0); + glVertex3f(0.9, 0.1, 0.0); + glEnd(); + glDisable (GL_BLEND); +} + +void display(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + if (leftFirst) { + drawLeftTriangle(); + drawRightTriangle(); + } + else { + drawRightTriangle(); + drawLeftTriangle(); + } + + glFlush(); +} + +void reshape(int w, int h) +{ + glViewport(0, 0, (GLsizei) w, (GLsizei) h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + if (w <= h) + gluOrtho2D (0.0, 1.0, 0.0, 1.0*(GLfloat)h/(GLfloat)w); + else + gluOrtho2D (0.0, 1.0*(GLfloat)w/(GLfloat)h, 0.0, 1.0); +} + +/* ARGSUSED1 */ +void keyboard(unsigned char key, int x, int y) +{ + switch (key) { + case 't': + case 'T': + leftFirst = !leftFirst; + glutPostRedisplay(); + break; + case 27: /* Escape key */ + exit(0); + break; + default: + break; + } +} + +/* Main Loop + * Open window with initial window size, title bar, + * RGBA display mode, and handle input events. + */ +int main(int argc, char** argv) +{ + glutInit(&argc, argv); + glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB); + glutInitWindowSize (200, 200); + glutCreateWindow (argv[0]); + init(); + glutReshapeFunc (reshape); + glutKeyboardFunc (keyboard); + glutDisplayFunc (display); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-blend-min.c b/progs/trivial/tri-blend-min.c new file mode 100644 index 00000000000..00b2dec7056 --- /dev/null +++ b/progs/trivial/tri-blend-min.c @@ -0,0 +1,145 @@ +/* + * Copyright (c) 1993-1997, Silicon Graphics, Inc. + * ALL RIGHTS RESERVED + * Permission to use, copy, modify, and distribute this software for + * any purpose and without fee is hereby granted, provided that the above + * copyright notice appear in all copies and that both the copyright notice + * and this permission notice appear in supporting documentation, and that + * the name of Silicon Graphics, Inc. not be used in advertising + * or publicity pertaining to distribution of the software without specific, + * written prior permission. + * + * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" + * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR + * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON + * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT, + * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY + * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, + * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF + * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN + * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE + * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE. + * + * US Government Users Restricted Rights + * Use, duplication, or disclosure by the Government is subject to + * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph + * (c)(1)(ii) of the Rights in Technical Data and Computer Software + * clause at DFARS 252.227-7013 and/or in similar or successor + * clauses in the FAR or the DOD or NASA FAR Supplement. + * Unpublished-- rights reserved under the copyright laws of the + * United States. Contractor/manufacturer is Silicon Graphics, + * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311. + * + * OpenGL(R) is a registered trademark of Silicon Graphics, Inc. + */ + +/* + * alpha.c + * This program draws several overlapping filled polygons + * to demonstrate the effect order has on alpha blending results. + * Use the 't' key to toggle the order of drawing polygons. + */ +#include <GL/glut.h> +#include <stdlib.h> + +static int leftFirst = GL_TRUE; + +/* Initialize alpha blending function. + */ +static void init(void) +{ + glBlendEquation (GL_MIN); + glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + glShadeModel (GL_FLAT); + glClearColor (1.0, 0.0, 0.0, 0.0); +} + +static void drawLeftTriangle(void) +{ + /* draw yellow triangle on LHS of screen */ + + glBegin (GL_TRIANGLES); + glColor4f(1.0, 1.0, 0.0, 0.75); + glVertex3f(0.1, 0.9, 0.0); + glVertex3f(0.1, 0.1, 0.0); + glVertex3f(0.7, 0.5, 0.0); + glEnd(); +} + +static void drawRightTriangle(void) +{ + /* draw cyan triangle on RHS of screen */ + + glEnable (GL_BLEND); + glBegin (GL_TRIANGLES); + glColor4f(0.0, 1.0, 1.0, 0.75); + glVertex3f(0.9, 0.9, 0.0); + glVertex3f(0.3, 0.5, 0.0); + glVertex3f(0.9, 0.1, 0.0); + glEnd(); + glDisable (GL_BLEND); +} + +void display(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + if (leftFirst) { + drawLeftTriangle(); + drawRightTriangle(); + } + else { + drawRightTriangle(); + drawLeftTriangle(); + } + + glFlush(); +} + +void reshape(int w, int h) +{ + glViewport(0, 0, (GLsizei) w, (GLsizei) h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + if (w <= h) + gluOrtho2D (0.0, 1.0, 0.0, 1.0*(GLfloat)h/(GLfloat)w); + else + gluOrtho2D (0.0, 1.0*(GLfloat)w/(GLfloat)h, 0.0, 1.0); +} + +/* ARGSUSED1 */ +void keyboard(unsigned char key, int x, int y) +{ + switch (key) { + case 't': + case 'T': + leftFirst = !leftFirst; + glutPostRedisplay(); + break; + case 27: /* Escape key */ + exit(0); + break; + default: + break; + } +} + +/* Main Loop + * Open window with initial window size, title bar, + * RGBA display mode, and handle input events. + */ +int main(int argc, char** argv) +{ + glutInit(&argc, argv); + glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB); + glutInitWindowSize (200, 200); + glutCreateWindow (argv[0]); + init(); + glutReshapeFunc (reshape); + glutKeyboardFunc (keyboard); + glutDisplayFunc (display); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-blend-revsub.c b/progs/trivial/tri-blend-revsub.c new file mode 100644 index 00000000000..be187fd4cee --- /dev/null +++ b/progs/trivial/tri-blend-revsub.c @@ -0,0 +1,145 @@ +/* + * Copyright (c) 1993-1997, Silicon Graphics, Inc. + * ALL RIGHTS RESERVED + * Permission to use, copy, modify, and distribute this software for + * any purpose and without fee is hereby granted, provided that the above + * copyright notice appear in all copies and that both the copyright notice + * and this permission notice appear in supporting documentation, and that + * the name of Silicon Graphics, Inc. not be used in advertising + * or publicity pertaining to distribution of the software without specific, + * written prior permission. + * + * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" + * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR + * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON + * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT, + * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY + * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, + * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF + * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN + * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE + * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE. + * + * US Government Users Restricted Rights + * Use, duplication, or disclosure by the Government is subject to + * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph + * (c)(1)(ii) of the Rights in Technical Data and Computer Software + * clause at DFARS 252.227-7013 and/or in similar or successor + * clauses in the FAR or the DOD or NASA FAR Supplement. + * Unpublished-- rights reserved under the copyright laws of the + * United States. Contractor/manufacturer is Silicon Graphics, + * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311. + * + * OpenGL(R) is a registered trademark of Silicon Graphics, Inc. + */ + +/* + * alpha.c + * This program draws several overlapping filled polygons + * to demonstrate the effect order has on alpha blending results. + * Use the 't' key to toggle the order of drawing polygons. + */ +#include <GL/glut.h> +#include <stdlib.h> + +static int leftFirst = GL_TRUE; + +/* Initialize alpha blending function. + */ +static void init(void) +{ + glBlendEquation (GL_FUNC_REVERSE_SUBTRACT); + glBlendFunc (GL_ONE_MINUS_SRC_ALPHA, GL_SRC_ALPHA); + glShadeModel (GL_FLAT); + glClearColor (1.0, 0.0, 0.0, 0.0); +} + +static void drawLeftTriangle(void) +{ + /* draw yellow triangle on LHS of screen */ + + glBegin (GL_TRIANGLES); + glColor4f(1.0, 1.0, 0.0, 0.75); + glVertex3f(0.1, 0.9, 0.0); + glVertex3f(0.1, 0.1, 0.0); + glVertex3f(0.7, 0.5, 0.0); + glEnd(); +} + +static void drawRightTriangle(void) +{ + /* draw cyan triangle on RHS of screen */ + + glEnable (GL_BLEND); + glBegin (GL_TRIANGLES); + glColor4f(0.0, 1.0, 1.0, 0.75); + glVertex3f(0.9, 0.9, 0.0); + glVertex3f(0.3, 0.5, 0.0); + glVertex3f(0.9, 0.1, 0.0); + glEnd(); + glDisable (GL_BLEND); +} + +void display(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + if (leftFirst) { + drawLeftTriangle(); + drawRightTriangle(); + } + else { + drawRightTriangle(); + drawLeftTriangle(); + } + + glFlush(); +} + +void reshape(int w, int h) +{ + glViewport(0, 0, (GLsizei) w, (GLsizei) h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + if (w <= h) + gluOrtho2D (0.0, 1.0, 0.0, 1.0*(GLfloat)h/(GLfloat)w); + else + gluOrtho2D (0.0, 1.0*(GLfloat)w/(GLfloat)h, 0.0, 1.0); +} + +/* ARGSUSED1 */ +void keyboard(unsigned char key, int x, int y) +{ + switch (key) { + case 't': + case 'T': + leftFirst = !leftFirst; + glutPostRedisplay(); + break; + case 27: /* Escape key */ + exit(0); + break; + default: + break; + } +} + +/* Main Loop + * Open window with initial window size, title bar, + * RGBA display mode, and handle input events. + */ +int main(int argc, char** argv) +{ + glutInit(&argc, argv); + glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB); + glutInitWindowSize (200, 200); + glutCreateWindow (argv[0]); + init(); + glutReshapeFunc (reshape); + glutKeyboardFunc (keyboard); + glutDisplayFunc (display); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-blend-sub.c b/progs/trivial/tri-blend-sub.c new file mode 100644 index 00000000000..d207791108c --- /dev/null +++ b/progs/trivial/tri-blend-sub.c @@ -0,0 +1,145 @@ +/* + * Copyright (c) 1993-1997, Silicon Graphics, Inc. + * ALL RIGHTS RESERVED + * Permission to use, copy, modify, and distribute this software for + * any purpose and without fee is hereby granted, provided that the above + * copyright notice appear in all copies and that both the copyright notice + * and this permission notice appear in supporting documentation, and that + * the name of Silicon Graphics, Inc. not be used in advertising + * or publicity pertaining to distribution of the software without specific, + * written prior permission. + * + * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" + * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR + * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON + * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT, + * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY + * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, + * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF + * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN + * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE + * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE. + * + * US Government Users Restricted Rights + * Use, duplication, or disclosure by the Government is subject to + * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph + * (c)(1)(ii) of the Rights in Technical Data and Computer Software + * clause at DFARS 252.227-7013 and/or in similar or successor + * clauses in the FAR or the DOD or NASA FAR Supplement. + * Unpublished-- rights reserved under the copyright laws of the + * United States. Contractor/manufacturer is Silicon Graphics, + * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311. + * + * OpenGL(R) is a registered trademark of Silicon Graphics, Inc. + */ + +/* + * alpha.c + * This program draws several overlapping filled polygons + * to demonstrate the effect order has on alpha blending results. + * Use the 't' key to toggle the order of drawing polygons. + */ +#include <GL/glut.h> +#include <stdlib.h> + +static int leftFirst = GL_TRUE; + +/* Initialize alpha blending function. + */ +static void init(void) +{ + glBlendEquation (GL_FUNC_SUBTRACT); + glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + glShadeModel (GL_FLAT); + glClearColor (1.0, 0.0, 0.0, 0.0); +} + +static void drawLeftTriangle(void) +{ + /* draw yellow triangle on LHS of screen */ + + glBegin (GL_TRIANGLES); + glColor4f(1.0, 1.0, 0.0, 0.75); + glVertex3f(0.1, 0.9, 0.0); + glVertex3f(0.1, 0.1, 0.0); + glVertex3f(0.7, 0.5, 0.0); + glEnd(); +} + +static void drawRightTriangle(void) +{ + /* draw cyan triangle on RHS of screen */ + + glEnable (GL_BLEND); + glBegin (GL_TRIANGLES); + glColor4f(0.0, 1.0, 1.0, 0.75); + glVertex3f(0.9, 0.9, 0.0); + glVertex3f(0.3, 0.5, 0.0); + glVertex3f(0.9, 0.1, 0.0); + glEnd(); + glDisable (GL_BLEND); +} + +void display(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + if (leftFirst) { + drawLeftTriangle(); + drawRightTriangle(); + } + else { + drawRightTriangle(); + drawLeftTriangle(); + } + + glFlush(); +} + +void reshape(int w, int h) +{ + glViewport(0, 0, (GLsizei) w, (GLsizei) h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + if (w <= h) + gluOrtho2D (0.0, 1.0, 0.0, 1.0*(GLfloat)h/(GLfloat)w); + else + gluOrtho2D (0.0, 1.0*(GLfloat)w/(GLfloat)h, 0.0, 1.0); +} + +/* ARGSUSED1 */ +void keyboard(unsigned char key, int x, int y) +{ + switch (key) { + case 't': + case 'T': + leftFirst = !leftFirst; + glutPostRedisplay(); + break; + case 27: /* Escape key */ + exit(0); + break; + default: + break; + } +} + +/* Main Loop + * Open window with initial window size, title bar, + * RGBA display mode, and handle input events. + */ +int main(int argc, char** argv) +{ + glutInit(&argc, argv); + glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB); + glutInitWindowSize (200, 200); + glutCreateWindow (argv[0]); + init(); + glutReshapeFunc (reshape); + glutKeyboardFunc (keyboard); + glutDisplayFunc (display); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-blend.c b/progs/trivial/tri-blend.c index 284d15fd3c9..58c451c9769 100644 --- a/progs/trivial/tri-blend.c +++ b/progs/trivial/tri-blend.c @@ -132,7 +132,7 @@ void keyboard(unsigned char key, int x, int y) int main(int argc, char** argv) { glutInit(&argc, argv); - glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB); + glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB | GLUT_ALPHA); glutInitWindowSize (200, 200); glutCreateWindow (argv[0]); init(); diff --git a/progs/trivial/tri-clear.c b/progs/trivial/tri-clear.c new file mode 100644 index 00000000000..25ea77cfa75 --- /dev/null +++ b/progs/trivial/tri-clear.c @@ -0,0 +1,143 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + +GLint Width = 250, Height = 250; + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glEnd(); + + glEnable(GL_SCISSOR_TEST); + glClearColor(1, 0, 1, 0); + glScissor(Width / 2, Height / 2, Width - Width / 2, Height - Height / 2); + glClear(GL_COLOR_BUFFER_BIT); + glDisable(GL_SCISSOR_TEST); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize( Width, Height); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-clip.c b/progs/trivial/tri-clip.c index bf48533adcc..f30445cdba1 100644 --- a/progs/trivial/tri-clip.c +++ b/progs/trivial/tri-clip.c @@ -28,26 +28,21 @@ #include <GL/glut.h> -#define CI_OFFSET_1 16 -#define CI_OFFSET_2 32 +static GLenum doubleBuffer; +static GLfloat Xpos = 0, Ypos = 0; -GLenum doubleBuffer; - static void Init(void) { fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); - - glClearColor(0.0, 0.0, 1.0, 0.0); + glClearColor(0.0, 0.0, 1.0, 0.0); } static void Reshape(int width, int height) { - glViewport(0, 0, (GLint)width, (GLint)height); - glMatrixMode(GL_PROJECTION); glLoadIdentity(); glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); @@ -56,21 +51,45 @@ static void Reshape(int width, int height) static void Key(unsigned char key, int x, int y) { - switch (key) { case 27: exit(1); default: return; } - glutPostRedisplay(); } +static void +SpecialKey(int key, int x, int y) +{ + const GLfloat step = 0.25; + (void) x; + (void) y; + switch (key) { + case GLUT_KEY_UP: + Ypos += step; + break; + case GLUT_KEY_DOWN: + Ypos -= step; + break; + case GLUT_KEY_LEFT: + Xpos -= step; + break; + case GLUT_KEY_RIGHT: + Xpos += step; + break; + } + glutPostRedisplay(); +} + static void Draw(void) { glClear(GL_COLOR_BUFFER_BIT); + glPushMatrix(); + glTranslatef(Xpos, Ypos, 0); + glBegin(GL_TRIANGLES); glColor3f(0,0,.7); glVertex3f( 0.9, -0.9, -30.0); @@ -80,12 +99,13 @@ static void Draw(void) glVertex3f(-1.9, 0.0, -30.0); glEnd(); + glPopMatrix(); + glFlush(); if (doubleBuffer) { glutSwapBuffers(); } - } static GLenum Args(int argc, char **argv) @@ -131,7 +151,8 @@ int main(int argc, char **argv) glutReshapeFunc(Reshape); glutKeyboardFunc(Key); + glutSpecialFunc(SpecialKey); glutDisplayFunc(Draw); glutMainLoop(); - return 0; + return 0; } diff --git a/progs/trivial/tri-cull-both.c b/progs/trivial/tri-cull-both.c new file mode 100644 index 00000000000..51b5865ae5c --- /dev/null +++ b/progs/trivial/tri-cull-both.c @@ -0,0 +1,141 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); + glCullFace(GL_FRONT_AND_BACK); + glEnable(GL_CULL_FACE); + +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + + + glBegin(GL_TRIANGLES); + glColor3f(.8,0,0); + glVertex3f( 0.93, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.93, 0.0, -30.0); + glColor3f(0,0,.7); + glVertex3f( 0.93, -0.8, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-cull.c b/progs/trivial/tri-cull.c index 20aeaf1d7cd..2eead841155 100644 --- a/progs/trivial/tri-cull.c +++ b/progs/trivial/tri-cull.c @@ -27,25 +27,45 @@ #include <stdlib.h> #include <GL/glut.h> +static GLenum doubleBuffer; +static GLint cullmode = 0; +static GLenum front = GL_CCW; /* GL default */ -#define CI_OFFSET_1 16 -#define CI_OFFSET_2 32 - - -GLenum doubleBuffer; +static void cull(void) +{ + cullmode = (cullmode + 1) % 4; + if (cullmode == 0) { + glCullFace(GL_FRONT); + glEnable(GL_CULL_FACE); + printf("cull GL_FRONT\n"); + } + else if (cullmode == 1) { + glCullFace(GL_BACK); + glEnable(GL_CULL_FACE); + printf("cull GL_BACK\n"); + } + else if (cullmode == 2) { + glCullFace(GL_FRONT_AND_BACK); + glEnable(GL_CULL_FACE); + printf("cull GL_FRONT_AND_BACK\n"); + } + else { + glDisable(GL_CULL_FACE); + printf("cull none\n"); + } +} static void Init(void) { fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); - - glClearColor(0.0, 0.0, 1.0, 0.0); + glClearColor(0.0, 0.0, 1.0, 0.0); + cull(); } static void Reshape(int width, int height) { - glViewport(0, 0, (GLint)width, (GLint)height); glMatrixMode(GL_PROJECTION); @@ -56,15 +76,21 @@ static void Reshape(int width, int height) static void Key(unsigned char key, int x, int y) { - - switch (key) { - case 27: - exit(1); - default: - return; - } - - glutPostRedisplay(); + switch (key) { + case 27: + exit(1); + case 'c': + cull(); + break; + case 'f': + front = ((front == GL_CCW) ? GL_CW : GL_CCW); + glFrontFace(front); + printf("front face = %s\n", front == GL_CCW ? "GL_CCW" : "GL_CW"); + break; + default: + return; + } + glutPostRedisplay(); } static void Draw(void) @@ -72,12 +98,22 @@ static void Draw(void) glClear(GL_COLOR_BUFFER_BIT); glBegin(GL_TRIANGLES); - glColor3f(0,0,1); - glVertex3f( -1.5, 0.5, -30.0); - glColor3f(1,0,0); - glVertex3f( 0, 2.0, -30.0); - glColor3f(0,1,0); - glVertex3f(-1.5, 2.0, -30.0); + /* CCW / front-facing */ + glColor3f(0,0,.7); + glVertex3f(-0.1, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f(-0.1, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + + /* CW / back-facing */ + glColor3f(0,0,.7); + glVertex3f( 0.1, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.1, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f( 0.9, 0.0, -30.0); + glEnd(); glFlush(); @@ -118,7 +154,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); @@ -132,5 +168,5 @@ int main(int argc, char **argv) glutKeyboardFunc(Key); glutDisplayFunc(Draw); glutMainLoop(); - return 0; + return 0; } diff --git a/progs/trivial/tri-dlist.c b/progs/trivial/tri-dlist.c index e0ab285eff4..c21c4714adf 100644 --- a/progs/trivial/tri-dlist.c +++ b/progs/trivial/tri-dlist.c @@ -132,7 +132,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/tri-edgeflag.c b/progs/trivial/tri-edgeflag.c index bdc0eaa253a..41899c2eb4f 100644 --- a/progs/trivial/tri-edgeflag.c +++ b/progs/trivial/tri-edgeflag.c @@ -27,25 +27,18 @@ #include <stdlib.h> #include <GL/glut.h> - -#define CI_OFFSET_1 16 -#define CI_OFFSET_2 32 - - -GLenum doubleBuffer; +static GLenum doubleBuffer; +static GLenum frontface = GL_CCW; static void Init(void) { fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); - - glClearColor(0.0, 0.0, 1.0, 0.0); } static void Reshape(int width, int height) { - glViewport(0, 0, (GLint)width, (GLint)height); glMatrixMode(GL_PROJECTION); @@ -56,13 +49,16 @@ static void Reshape(int width, int height) static void Key(unsigned char key, int x, int y) { - - switch (key) { - case 27: - exit(1); - default: - return; - } + switch (key) { + case 'f': + frontface = (frontface == GL_CCW) ? GL_CW : GL_CCW; + glFrontFace(frontface); + break; + case 27: + exit(1); + default: + return; + } glutPostRedisplay(); } @@ -75,7 +71,7 @@ static void Draw(void) glBegin(GL_TRIANGLES); glEdgeFlag(1); - glColor3f(0,0,.7); + glColor3f(0.3,0.3,.9); glVertex3f( 0.9, -0.9, -0.0); glEdgeFlag(0); glColor3f(.8,0,0); @@ -123,7 +119,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); @@ -137,5 +133,5 @@ int main(int argc, char **argv) glutKeyboardFunc(Key); glutDisplayFunc(Draw); glutMainLoop(); - return 0; + return 0; } diff --git a/progs/trivial/tri-fbo-tex.c b/progs/trivial/tri-fbo-tex.c new file mode 100644 index 00000000000..d413d4081f1 --- /dev/null +++ b/progs/trivial/tri-fbo-tex.c @@ -0,0 +1,267 @@ +/* + * Test GL_EXT_framebuffer_object render-to-texture + * + * Draw a teapot into a texture image with stenciling. + * Then draw a textured quad using that texture. + * + * Brian Paul + * 18 Apr 2005 + */ + + +#define GL_GLEXT_PROTOTYPES +#include <GL/glut.h> +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> + +/* For debug */ + + +static int Win = 0; +static int Width = 512, Height = 512; + +static GLenum TexTarget = GL_TEXTURE_2D; +static int TexWidth = 512, TexHeight = 512; + +static GLuint MyFB; +static GLuint TexObj; +static GLboolean Anim = GL_FALSE; +static GLfloat Rot = 0.0; +static GLuint TextureLevel = 0; /* which texture level to render to */ +static GLenum TexIntFormat = GL_RGB; /* either GL_RGB or GL_RGBA */ + + +static void +CheckError(int line) +{ + GLenum err = glGetError(); + if (err) { + printf("GL Error 0x%x at line %d\n", (int) err, line); + } +} + + +static void +Idle(void) +{ + Rot = glutGet(GLUT_ELAPSED_TIME) * 0.1; + glutPostRedisplay(); +} + + +static void +RenderTexture(void) +{ + GLenum status; + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -15.0); + + if (1) { + /* draw to texture image */ + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB); + + status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); + if (status != GL_FRAMEBUFFER_COMPLETE_EXT) { + printf("Framebuffer incomplete!!!\n"); + } + + glViewport(0, 0, TexWidth, TexHeight); + + glClearColor(0.5, 0.5, 1.0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + + CheckError(__LINE__); + + glBegin(GL_POLYGON); + glColor3f(1, 0, 0); + glVertex2f(-1, -1); + glColor3f(0, 1, 0); + glVertex2f(1, -1); + glColor3f(0, 0, 1); + glVertex2f(0, 1); + glEnd(); + + /* Bind normal framebuffer */ + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + } + else { + } + + CheckError(__LINE__); +} + + + +static void +Display(void) +{ + float ar = (float) Width / (float) Height; + + RenderTexture(); + + /* draw textured quad in the window */ + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustum(-ar, ar, -1.0, 1.0, 5.0, 25.0); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -7.0); + + glViewport(0, 0, Width, Height); + + glClearColor(0.25, 0.25, 0.25, 0); + glClear(GL_COLOR_BUFFER_BIT); + + glPushMatrix(); + glRotatef(Rot, 0, 1, 0); + glEnable(TexTarget); + glBindTexture(TexTarget, TexObj); + + { + glBegin(GL_POLYGON); + glColor3f(0.25, 0.25, 0.25); + glTexCoord2f(0, 0); + glVertex2f(-1, -1); + glTexCoord2f(1, 0); + glVertex2f(1, -1); + glColor3f(1.0, 1.0, 1.0); + glTexCoord2f(1, 1); + glVertex2f(1, 1); + glTexCoord2f(0, 1); + glVertex2f(-1, 1); + glEnd(); + } + + glPopMatrix(); + glDisable(TexTarget); + + glutSwapBuffers(); + CheckError(__LINE__); +} + + +static void +Reshape(int width, int height) +{ + glViewport(0, 0, width, height); + Width = width; + Height = height; +} + + +static void +CleanUp(void) +{ + glDeleteFramebuffersEXT(1, &MyFB); + + glDeleteTextures(1, &TexObj); + + glutDestroyWindow(Win); + + exit(0); +} + + +static void +Key(unsigned char key, int x, int y) +{ + (void) x; + (void) y; + switch (key) { + case 'a': + Anim = !Anim; + if (Anim) + glutIdleFunc(Idle); + else + glutIdleFunc(NULL); + break; + case 's': + Rot += 2.0; + break; + case 27: + CleanUp(); + break; + } + glutPostRedisplay(); +} + + +static void +Init(int argc, char *argv[]) +{ + static const GLfloat mat[4] = { 1.0, 0.5, 0.5, 1.0 }; + GLint i; + + if (!glutExtensionSupported("GL_EXT_framebuffer_object")) { + printf("GL_EXT_framebuffer_object not found!\n"); + exit(0); + } + + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + + + /* Make texture object/image */ + glGenTextures(1, &TexObj); + glBindTexture(TexTarget, TexObj); + glTexParameteri(TexTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(TexTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameteri(TexTarget, GL_TEXTURE_BASE_LEVEL, TextureLevel); + glTexParameteri(TexTarget, GL_TEXTURE_MAX_LEVEL, TextureLevel); + + glTexImage2D(TexTarget, 0, TexIntFormat, TexWidth, TexHeight, 0, + GL_RGBA, GL_UNSIGNED_BYTE, NULL); + + + glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); + + + + + /* gen framebuffer id, delete it, do some assertions, just for testing */ + glGenFramebuffersEXT(1, &MyFB); + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB); + assert(glIsFramebufferEXT(MyFB)); + + + CheckError(__LINE__); + + /* Render color to texture */ + glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, + TexTarget, TexObj, TextureLevel); + + + + CheckError(__LINE__); + + /* bind regular framebuffer */ + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + + +} + + +int +main(int argc, char *argv[]) +{ + glutInit(&argc, argv); + glutInitWindowPosition(0, 0); + glutInitWindowSize(Width, Height); + glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE); + Win = glutCreateWindow(argv[0]); + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Display); + if (Anim) + glutIdleFunc(Idle); + Init(argc, argv); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-fbo.c b/progs/trivial/tri-fbo.c new file mode 100644 index 00000000000..82d70c40b7e --- /dev/null +++ b/progs/trivial/tri-fbo.c @@ -0,0 +1,200 @@ + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <string.h> + +#define GL_GLEXT_PROTOTYPES +#include <GL/glut.h> + + + +static int Width = 400, Height = 400; +static GLuint MyFB, MyRB; + + +#define CheckError() assert(glGetError() == 0) + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + + if (!glutExtensionSupported("GL_EXT_framebuffer_object")) { + printf("GL_EXT_framebuffer_object not found!\n"); + exit(0); + } + + + glGenFramebuffersEXT(1, &MyFB); + glGenRenderbuffersEXT(1, &MyRB); + + { + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB); + + glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, MyRB); + + glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, + GL_RENDERBUFFER_EXT, MyRB); + + glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGB, Width, Height); + + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + } + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + + + +static void +Reshape( int width, int height ) +{ + glViewport( 0, 0, width, height ); + glMatrixMode( GL_PROJECTION ); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode( GL_MODELVIEW ); + + Width = width; + Height = height; + glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGB, Width, Height); +} + + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + + + +static void Draw( void ) +{ + + /* draw to user framebuffer */ + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB); + glDrawBuffer(GL_COLOR_ATTACHMENT1_EXT); + glReadBuffer(GL_COLOR_ATTACHMENT1_EXT); + + glClearColor(0.5, 0.5, 1.0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + CheckError(); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glEnd(); + + + { + GLubyte *buffer = malloc(Width * Height * 4); + + /* read from user framebuffer */ + glReadPixels(0, 0, Width-60, Height-60, GL_RGBA, GL_UNSIGNED_BYTE, buffer); + CheckError(); + + /* draw to window */ + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + /* Try to clear the window, but will overwrite: + */ + glClearColor(0.8, 0.8, 0, 0.0); + glClear(GL_COLOR_BUFFER_BIT); + + glWindowPos2iARB(30, 30); + glDrawPixels(Width-60, Height-60, GL_RGBA, GL_UNSIGNED_BYTE, buffer); + + + free(buffer); + } + + /* Bind normal framebuffer */ + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); + + if (1) { + glBegin(GL_TRIANGLES); + glColor3f(0,.7,0); + glVertex3f( 0.5, -0.5, -30.0); + glColor3f(0,0,.8); + glVertex3f( 0.5, 0.5, -30.0); + glColor3f(.9,0,0); + glVertex3f(-0.5, 0.0, -30.0); + glEnd(); + } + + if (doubleBuffer) + glutSwapBuffers(); + else + glFinish(); + + CheckError(); +} + + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + + + +int +main( int argc, char *argv[] ) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize( Width, Height ); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow(argv[0]) == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-flat-clip.c b/progs/trivial/tri-flat-clip.c index fafa64914d4..155b0c4f8d4 100644 --- a/progs/trivial/tri-flat-clip.c +++ b/progs/trivial/tri-flat-clip.c @@ -119,7 +119,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/tri-flat.c b/progs/trivial/tri-flat.c index fb2cdbd7bba..0583a2a99a1 100644 --- a/progs/trivial/tri-flat.c +++ b/progs/trivial/tri-flat.c @@ -119,7 +119,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/tri-fog.c b/progs/trivial/tri-fog.c new file mode 100644 index 00000000000..75f3262ecf4 --- /dev/null +++ b/progs/trivial/tri-fog.c @@ -0,0 +1,152 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + +GLint Width = 250, Height = 250; + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glEnable(GL_FOG); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glEnd(); + +#if 0 + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f(-0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f(-0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f( 0.9, 0.0, -30.0); + glEnd(); +#endif + + glDisable(GL_FOG); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize(Width, Height); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-mask-tri.c b/progs/trivial/tri-mask-tri.c new file mode 100644 index 00000000000..38ecd20a739 --- /dev/null +++ b/progs/trivial/tri-mask-tri.c @@ -0,0 +1,150 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + +GLint Width = 250, Height = 250; + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glColorMask(1,1,1,1); + + glClear(GL_COLOR_BUFFER_BIT); + + /* right triangle: green */ + glBegin(GL_TRIANGLES); + glColor3f(0,1,0); + glVertex3f( 0.9, -0.9, -30.0); + glVertex3f( 0.9, 0.9, -30.0); + glVertex3f(-0.9, 0.0, -30.0); + glEnd(); + + glColorMask(1,0,1,0); + + /* left triangle: white&mask: purple middle region: white */ + glBegin(GL_TRIANGLES); + glColor3f(1,1,1); + glVertex3f(-0.9, -0.9, -30.0); + glVertex3f(-0.9, 0.9, -30.0); + glVertex3f( 0.9, 0.0, -30.0); + glEnd(); + + glDisable(GL_SCISSOR_TEST); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize(Width, Height); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-orig.c b/progs/trivial/tri-orig.c new file mode 100644 index 00000000000..d5e6742ce1a --- /dev/null +++ b/progs/trivial/tri-orig.c @@ -0,0 +1,136 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); +/* glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); */ + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -0.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -0.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -0.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB | GLUT_ALPHA; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-query.c b/progs/trivial/tri-query.c new file mode 100644 index 00000000000..c9161c4f0ad --- /dev/null +++ b/progs/trivial/tri-query.c @@ -0,0 +1,158 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#define GL_GLEXT_PROTOTYPES +#include <GL/glut.h> + + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + +static GLuint OccQuery; + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); + + glGenQueriesARB(1, &OccQuery); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + GLuint passed; + GLint ready; + + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + + glEnable(GL_DEPTH_TEST); + + glBeginQueryARB(GL_SAMPLES_PASSED_ARB, OccQuery); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glEnd(); + + glEndQueryARB(GL_SAMPLES_PASSED_ARB); + + do { + /* do useful work here, if any */ + glGetQueryObjectivARB(OccQuery, GL_QUERY_RESULT_AVAILABLE_ARB, &ready); + } while (!ready); + glGetQueryObjectuivARB(OccQuery, GL_QUERY_RESULT_ARB, &passed); + + fprintf(stderr, " %d Fragments Visible\n", passed); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB | GLUT_DEPTH; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-scissor-tri.c b/progs/trivial/tri-scissor-tri.c new file mode 100644 index 00000000000..dcc6d282dc2 --- /dev/null +++ b/progs/trivial/tri-scissor-tri.c @@ -0,0 +1,151 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + +GLint Width = 250, Height = 250; + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glEnd(); + + glScissor(Width / 4, Height / 4, Width / 2, Height / 2); + glEnable(GL_SCISSOR_TEST); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f(-0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f(-0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f( 0.9, 0.0, -30.0); + glEnd(); + + glDisable(GL_SCISSOR_TEST); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize(Width, Height); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-square.c b/progs/trivial/tri-square.c new file mode 100644 index 00000000000..ef9ea63048f --- /dev/null +++ b/progs/trivial/tri-square.c @@ -0,0 +1,136 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D(0, (GLdouble)width, 0, (GLdouble)height); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glColor3f(1,1,1); + + glBegin(GL_TRIANGLES); + glVertex3f( 10, 10, -30.0); + glVertex3f( 200, 150, -30.0); + glVertex3f( 10, 200, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-stencil.c b/progs/trivial/tri-stencil.c new file mode 100644 index 00000000000..5edbef26ced --- /dev/null +++ b/progs/trivial/tri-stencil.c @@ -0,0 +1,149 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> +#include <GL/glut.h> + + +static void Init(void) +{ +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-5.0, 5.0, -5.0, 5.0, -5.0, 5.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + } +} + +static void Draw(void) +{ + glShadeModel(GL_FLAT); + + { + glClearColor(0.0, 0.0, 0.0, 0.0); + glClearStencil(0); + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT); + } + + + glStencilMask(1); + glEnable(GL_STENCIL_TEST); + glStencilFunc(GL_ALWAYS, 1, 1); + glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE); + + glColor3ub(200, 0, 0); + glBegin(GL_POLYGON); + glVertex3i(-4, -4, 0); + glVertex3i( 4, -4, 0); + glVertex3i( 0, 4, 0); + glEnd(); + +#if 1 + glStencilFunc(GL_EQUAL, 1, 1); + glStencilOp(GL_INCR, GL_KEEP, GL_DECR); + + glColor3ub(0, 200, 0); + glBegin(GL_POLYGON); + glVertex3i(3, 3, 0); + glVertex3i(-3, 3, 0); + glVertex3i(-3, -3, 0); + glVertex3i(3, -3, 0); + glEnd(); +#endif + +#if 0 + glStencilFunc(GL_EQUAL, 1, 1); + glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP); + + glColor3ub(0, 0, 200); + glBegin(GL_POLYGON); + glVertex3f(2.5, 2.5, 0); + glVertex3f(-2.5, 2.5, 0); + glVertex3f(-2.5, -2.5, 0); + glVertex3f(2.5, -2.5, 0); + glEnd(); +#endif + + glFlush(); +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-dr") == 0) { + } else { + printf("%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + type = GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH | GLUT_STENCIL; + glutInitDisplayMode(type); + + if (glutCreateWindow("Stencil Test") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-tex-3d.c b/progs/trivial/tri-tex-3d.c index 6a9d1d1bf6d..613803fd1b1 100644 --- a/progs/trivial/tri-tex-3d.c +++ b/progs/trivial/tri-tex-3d.c @@ -152,7 +152,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/tri-tri.c b/progs/trivial/tri-tri.c new file mode 100644 index 00000000000..06a0528eb87 --- /dev/null +++ b/progs/trivial/tri-tri.c @@ -0,0 +1,145 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glEnd(); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f(-0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f(-0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f( 0.9, 0.0, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-unfilled-clip.c b/progs/trivial/tri-unfilled-clip.c index d486af23655..df161df3fb8 100644 --- a/progs/trivial/tri-unfilled-clip.c +++ b/progs/trivial/tri-unfilled-clip.c @@ -119,7 +119,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/tri-unfilled-edgeflag.c b/progs/trivial/tri-unfilled-edgeflag.c new file mode 100644 index 00000000000..31f41f6220b --- /dev/null +++ b/progs/trivial/tri-unfilled-edgeflag.c @@ -0,0 +1,141 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); +/* glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); */ + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glPolygonMode(GL_FRONT, GL_LINE); + glPolygonMode(GL_BACK, GL_LINE); + + glBegin(GL_TRIANGLES); + glEdgeFlag(1); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -0.0); + glEdgeFlag(0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -0.0); + glEdgeFlag(1); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -0.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB | GLUT_ALPHA; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-unfilled-point.c b/progs/trivial/tri-unfilled-point.c new file mode 100644 index 00000000000..71ac453d603 --- /dev/null +++ b/progs/trivial/tri-unfilled-point.c @@ -0,0 +1,138 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); +/* glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); */ + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glPolygonMode(GL_FRONT, GL_POINT); + glPolygonMode(GL_BACK, GL_POINT); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -0.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -0.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -0.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-unfilled-smooth.c b/progs/trivial/tri-unfilled-smooth.c index e41903a3d50..f70c1cd9d4d 100644 --- a/progs/trivial/tri-unfilled-smooth.c +++ b/progs/trivial/tri-unfilled-smooth.c @@ -132,7 +132,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/tri-unfilled-userclip-stip.c b/progs/trivial/tri-unfilled-userclip-stip.c new file mode 100644 index 00000000000..4aefa85032f --- /dev/null +++ b/progs/trivial/tri-unfilled-userclip-stip.c @@ -0,0 +1,147 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + static GLdouble plane[4] = { -.5, 0, 1, 0 }; + + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); + glClipPlane(GL_CLIP_PLANE0, plane); + glEnable(GL_CLIP_PLANE0); + glLineWidth( 4 ); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); +/* glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); */ + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); + + glEnable(GL_LINE_STIPPLE); + glLineStipple( 5, 0xfffe ); + + + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, 0.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, 0.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, 0.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-unfilled-userclip.c b/progs/trivial/tri-unfilled-userclip.c index dc93a8f1abf..9201f9d433c 100644 --- a/progs/trivial/tri-unfilled-userclip.c +++ b/progs/trivial/tri-unfilled-userclip.c @@ -123,7 +123,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/tri-unfilled.c b/progs/trivial/tri-unfilled.c index 73961bc93a6..1e44823db5a 100644 --- a/progs/trivial/tri-unfilled.c +++ b/progs/trivial/tri-unfilled.c @@ -120,7 +120,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/tri-userclip.c b/progs/trivial/tri-userclip.c index cde9662ace9..ccf631dff80 100644 --- a/progs/trivial/tri-userclip.c +++ b/progs/trivial/tri-userclip.c @@ -122,7 +122,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/tri-z-9.c b/progs/trivial/tri-z-9.c new file mode 100644 index 00000000000..4bd99861660 --- /dev/null +++ b/progs/trivial/tri-z-9.c @@ -0,0 +1,139 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, 1, -1); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClearColor(0.0, 0.0, 1.0, 0.0); + glClearDepth(1.0); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + glDepthFunc(GL_EQUAL); + glEnable(GL_DEPTH_TEST); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, .5); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, .5); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, .5); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB | GLUT_DEPTH; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-z-eq.c b/progs/trivial/tri-z-eq.c new file mode 100644 index 00000000000..ad5f31a5588 --- /dev/null +++ b/progs/trivial/tri-z-eq.c @@ -0,0 +1,139 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, 1, -1); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClearColor(0.0, 0.0, 1.0, 0.0); + glClearDepth(1.0); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + glDepthFunc(GL_EQUAL); + glEnable(GL_DEPTH_TEST); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, 1.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, 1.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, 1.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB | GLUT_DEPTH; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri-z.c b/progs/trivial/tri-z.c new file mode 100644 index 00000000000..ae25900a358 --- /dev/null +++ b/progs/trivial/tri-z.c @@ -0,0 +1,131 @@ +/* + * Copyright (c) 1993-1997, Silicon Graphics, Inc. + * ALL RIGHTS RESERVED + * Permission to use, copy, modify, and distribute this software for + * any purpose and without fee is hereby granted, provided that the above + * copyright notice appear in all copies and that both the copyright notice + * and this permission notice appear in supporting documentation, and that + * the name of Silicon Graphics, Inc. not be used in advertising + * or publicity pertaining to distribution of the software without specific, + * written prior permission. + * + * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" + * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR + * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON + * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT, + * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY + * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, + * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF + * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN + * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE + * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE. + * + * US Government Users Restricted Rights + * Use, duplication, or disclosure by the Government is subject to + * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph + * (c)(1)(ii) of the Rights in Technical Data and Computer Software + * clause at DFARS 252.227-7013 and/or in similar or successor + * clauses in the FAR or the DOD or NASA FAR Supplement. + * Unpublished-- rights reserved under the copyright laws of the + * United States. Contractor/manufacturer is Silicon Graphics, + * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311. + * + * OpenGL(R) is a registered trademark of Silicon Graphics, Inc. + */ + +#include <GL/glut.h> +#include <stdlib.h> + +static int leftFirst = GL_TRUE; + +static void init(void) +{ + glEnable(GL_DEPTH_TEST); + glClearColor (1.0, 0.0, 0.0, 0.0); +} + +static void drawLeftTriangle(void) +{ + /* draw yellow triangle on LHS of screen */ + glBegin (GL_TRIANGLES); + glColor4f(1.0, 1.0, 0.0, 0.75); + glVertex3f(0.1, 0.9, -1.0); + glVertex3f(0.1, 0.1, -1.0); + glVertex3f(0.8, 0.5, 1.0); + glEnd(); +} + +static void drawRightTriangle(void) +{ + /* draw cyan triangle on RHS of screen */ + glBegin (GL_TRIANGLES); + glColor4f(0.0, 1.0, 1.0, 0.75); + glVertex3f(0.9, 0.9, 0.0); + glVertex3f(0.2, 0.5, 0.0); + glVertex3f(0.9, 0.1, 0.0); + glEnd(); +} + +void display(void) +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + if (leftFirst) { + drawLeftTriangle(); + drawRightTriangle(); + } + else { + drawRightTriangle(); + drawLeftTriangle(); + } + + glFlush(); +} + +void reshape(int w, int h) +{ + glViewport(0, 0, (GLsizei) w, (GLsizei) h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + if (w <= h) + gluOrtho2D (0.0, 1.0, 0.0, 1.0*(GLfloat)h/(GLfloat)w); + else + gluOrtho2D (0.0, 1.0*(GLfloat)w/(GLfloat)h, 0.0, 1.0); +} + +/* ARGSUSED1 */ +void keyboard(unsigned char key, int x, int y) +{ + switch (key) { + case 't': + case 'T': + leftFirst = !leftFirst; + glutPostRedisplay(); + break; + case 27: /* Escape key */ + exit(0); + break; + default: + break; + } +} + +/* Main Loop + * Open window with initial window size, title bar, + * RGBA display mode, and handle input events. + */ +int main(int argc, char** argv) +{ + glutInit(&argc, argv); + glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH); + glutInitWindowSize (200, 200); + glutCreateWindow (argv[0]); + init(); + glutReshapeFunc (reshape); + glutKeyboardFunc (keyboard); + glutDisplayFunc (display); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tri.c b/progs/trivial/tri.c index d4a7f08ae34..c75acb3a5a8 100644 --- a/progs/trivial/tri.c +++ b/progs/trivial/tri.c @@ -32,7 +32,7 @@ #define CI_OFFSET_2 32 -GLenum doubleBuffer; +GLenum doubleBuffer = 1; int win; static void Init(void) @@ -41,7 +41,7 @@ static void Init(void) fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); - glClearColor(0.0, 0.0, 1.0, 0.0); + glClearColor(0.3, 0.1, 0.3, 0.0); } static void Reshape(int width, int height) @@ -60,7 +60,10 @@ static void Key(unsigned char key, int x, int y) switch (key) { case 27: +<<<<<<< HEAD:progs/trivial/tri.c glutDestroyWindow(win); +======= +>>>>>>> gallium-0.1:progs/trivial/tri.c exit(0); default: return; @@ -74,12 +77,12 @@ static void Draw(void) glClear(GL_COLOR_BUFFER_BIT); glBegin(GL_TRIANGLES); - glColor3f(0,0,.7); - glVertex3f( 0.9, -0.9, -30.0); glColor3f(.8,0,0); - glVertex3f( 0.9, 0.9, -30.0); + glVertex3f(-0.9, -0.9, -30.0); glColor3f(0,.9,0); - glVertex3f(-0.9, 0.0, -30.0); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(0,0,.7); + glVertex3f( 0.0, 0.9, -30.0); glEnd(); glFlush(); @@ -93,8 +96,6 @@ static GLenum Args(int argc, char **argv) { GLint i; - doubleBuffer = GL_FALSE; - for (i = 1; i < argc; i++) { if (strcmp(argv[i], "-sb") == 0) { doubleBuffer = GL_FALSE; @@ -120,7 +121,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); @@ -135,5 +136,5 @@ int main(int argc, char **argv) glutKeyboardFunc(Key); glutDisplayFunc(Draw); glutMainLoop(); - return 0; + return 0; } diff --git a/progs/trivial/trifan-flat-clip.c b/progs/trivial/trifan-flat-clip.c new file mode 100644 index 00000000000..04042fac704 --- /dev/null +++ b/progs/trivial/trifan-flat-clip.c @@ -0,0 +1,140 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glShadeModel(GL_FLAT); + + + glBegin(GL_TRIANGLE_FAN); + glColor3f(1,0,0); + glVertex3f( 0, 0, -30.0); + glColor3f(1,1,0); + glVertex3f( 1.3, 1.1, -30.0); + glColor3f(1,0,1); + glVertex3f(-.9, .9, -30.0); + glColor3f(0,1,1); + glVertex3f(-1.1, -1.3, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/trifan-flat-unfilled-clip.c b/progs/trivial/trifan-flat-unfilled-clip.c new file mode 100644 index 00000000000..25224412cc9 --- /dev/null +++ b/progs/trivial/trifan-flat-unfilled-clip.c @@ -0,0 +1,144 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glShadeModel(GL_FLAT); + + glPolygonMode(GL_FRONT, GL_LINE); + glPolygonMode(GL_BACK, GL_LINE); + glLineWidth(4.0); + + + glBegin(GL_TRIANGLE_FAN); + glColor3f(1,0,0); + glVertex3f( 0, 0, -30.0); + glColor3f(1,1,0); + glVertex3f( 1.3, 1.1, -30.0); + glColor3f(1,0,1); + glVertex3f(-.9, .9, -30.0); + glColor3f(0,1,1); + glVertex3f(-1.1, -1.3, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/trifan-flat.c b/progs/trivial/trifan-flat.c new file mode 100644 index 00000000000..737eccdcae7 --- /dev/null +++ b/progs/trivial/trifan-flat.c @@ -0,0 +1,140 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glShadeModel(GL_FLAT); + + + glBegin(GL_TRIANGLE_FAN); + glColor3f(1,0,0); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(1,1,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(1,0,1); + glVertex3f(-0.9, 0.9, -30.0); + glColor3f(0,1,1); + glVertex3f(-0.9, -0.9, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB | GLUT_ALPHA; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/trifan-unfilled.c b/progs/trivial/trifan-unfilled.c new file mode 100644 index 00000000000..8e7454108c0 --- /dev/null +++ b/progs/trivial/trifan-unfilled.c @@ -0,0 +1,139 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); + + glBegin(GL_TRIANGLE_FAN); + glColor3f(1,0,0); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(1,1,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(1,0,1); + glVertex3f(-0.9, 0.9, -30.0); + glColor3f(0,1,1); + glVertex3f(-0.9, -0.9, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB | GLUT_ALPHA; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/trifan.c b/progs/trivial/trifan.c new file mode 100644 index 00000000000..ecb0424393e --- /dev/null +++ b/progs/trivial/trifan.c @@ -0,0 +1,138 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glBegin(GL_TRIANGLE_FAN); + glColor3f(1,0,0); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(1,1,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(1,0,1); + glVertex3f(-0.9, 0.9, -30.0); + glColor3f(0,1,1); + glVertex3f(-0.9, -0.9, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB | GLUT_ALPHA; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tristrip-flat.c b/progs/trivial/tristrip-flat.c new file mode 100644 index 00000000000..e048233e67c --- /dev/null +++ b/progs/trivial/tristrip-flat.c @@ -0,0 +1,148 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + + switch (key) { + case 27: + exit(1); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glShadeModel(GL_FLAT); + + if (0) { + glBegin(GL_LINES); + glColor3f(1,0,0); + glVertex3f( 0.95, -0.9, -30.0); + glColor3f(1,1,0); + glVertex3f( 0.95, 0.9, -30.0); + glEnd(); + } + + glBegin(GL_TRIANGLE_STRIP); + glColor3f(1,0,0); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(0,1,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,0,.5); + glVertex3f(-0.9, -0.9, -30.0); + glColor3f(1,1,1); + glVertex3f(-0.9, 0.9, -30.0); + glEnd(); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/tristrip.c b/progs/trivial/tristrip.c index fa82a737112..51ea4f23251 100644 --- a/progs/trivial/tristrip.c +++ b/progs/trivial/tristrip.c @@ -120,7 +120,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); diff --git a/progs/trivial/vp-array-int.c b/progs/trivial/vp-array-int.c new file mode 100644 index 00000000000..4d60f2bd5f5 --- /dev/null +++ b/progs/trivial/vp-array-int.c @@ -0,0 +1,117 @@ +/* Test glGenProgramsNV(), glIsProgramNV(), glLoadProgramNV() */ + +#include <assert.h> +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#define GL_GLEXT_PROTOTYPES +#include <GL/glut.h> + +GLint verts[][4] = { + { 1, -1, 0, 1 }, + { 1, 1, 0, 1 }, + { -1, 1, 0, 1 }, + { -1, -1, 0, 1 }, +}; + +GLubyte color[][4] = { + { 0x00, 0x00, 0xff, 0x00 }, + { 0x00, 0xff, 0x00, 0x00 }, + { 0xff, 0x00, 0x00, 0x00 }, + { 0xff, 0xff, 0xff, 0x00 }, +}; + +GLuint indices[] = { 0, 1, 2, 3 }; + +static void Init( void ) +{ + GLint errno; + GLuint prognum; + + static const char *prog1 = + "!!ARBvp1.0\n" + "MOV result.color, vertex.color;\n" + "MOV result.position, vertex.position;\n" + "END\n"; + + glGenProgramsARB(1, &prognum); + glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prognum); + glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, + strlen(prog1), (const GLubyte *) prog1); + + assert(glIsProgramARB(prognum)); + errno = glGetError(); + printf("glGetError = %d\n", errno); + if (errno != GL_NO_ERROR) + { + GLint errorpos; + + glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorpos); + printf("errorpos: %d\n", errorpos); + printf("%s\n", (char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB)); + } + + + glEnableClientState( GL_VERTEX_ARRAY ); + glEnableClientState( GL_COLOR_ARRAY ); + glVertexPointer( 3, GL_INT, sizeof(verts[0]), verts ); + glColorPointer( 4, GL_UNSIGNED_BYTE, 0, color ); + +} + + + +static void Display( void ) +{ + glClearColor(0.3, 0.3, 0.3, 1); + glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); + + glEnable(GL_VERTEX_PROGRAM_NV); + glDrawElements( GL_TRIANGLES, 3, GL_UNSIGNED_INT, indices ); + + glFlush(); +} + + +static void Reshape( int width, int height ) +{ + glViewport( 0, 0, width, height ); + glMatrixMode( GL_PROJECTION ); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode( GL_MODELVIEW ); + glLoadIdentity(); + /*glTranslatef( 0.0, 0.0, -15.0 );*/ +} + + +static void Key( unsigned char key, int x, int y ) +{ + (void) x; + (void) y; + switch (key) { + case 27: + exit(0); + break; + } + glutPostRedisplay(); +} + + + + +int main( int argc, char *argv[] ) +{ + glutInit( &argc, argv ); + glutInitWindowPosition( 0, 0 ); + glutInitWindowSize( 250, 250 ); + glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH ); + glutCreateWindow(argv[0]); + glutReshapeFunc( Reshape ); + glutKeyboardFunc( Key ); + glutDisplayFunc( Display ); + Init(); + glutMainLoop(); + return 0; +} diff --git a/progs/trivial/vp-tri.c b/progs/trivial/vp-tri.c index f8e18654c60..d2ef5043b22 100644 --- a/progs/trivial/vp-tri.c +++ b/progs/trivial/vp-tri.c @@ -43,17 +43,17 @@ static void Init( void ) static void Display( void ) { glClearColor(0.3, 0.3, 0.3, 1); - glClear( GL_COLOR_BUFFER_BIT ); + glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); glEnable(GL_VERTEX_PROGRAM_NV); glBegin(GL_TRIANGLES); - glColor3f(0,0,1); - glVertex3f( 0.9, -0.9, 0.0); - glColor3f(0,1,0); - glVertex3f( 0.9, 0.9, 0.0); - glColor3f(1,0,0); - glVertex3f(-0.9, 0.0, 0.0); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -0.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -0.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -0.0); glEnd(); @@ -93,7 +93,7 @@ int main( int argc, char *argv[] ) glutInit( &argc, argv ); glutInitWindowPosition( 0, 0 ); glutInitWindowSize( 250, 250 ); - glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE ); + glutInitDisplayMode( GLUT_DEPTH | GLUT_RGB | GLUT_SINGLE ); glutCreateWindow(argv[0]); glutReshapeFunc( Reshape ); glutKeyboardFunc( Key ); |