summaryrefslogtreecommitdiff
path: root/progs/tests/ext422square.c
diff options
context:
space:
mode:
Diffstat (limited to 'progs/tests/ext422square.c')
-rw-r--r--progs/tests/ext422square.c258
1 files changed, 0 insertions, 258 deletions
diff --git a/progs/tests/ext422square.c b/progs/tests/ext422square.c
deleted file mode 100644
index 6533514d697..00000000000
--- a/progs/tests/ext422square.c
+++ /dev/null
@@ -1,258 +0,0 @@
-/*
- * Exercise the EXT_422_pixels extension, a less convenient
- * alternative to MESA_ycbcr_texture. Requires ARB_fragment_program
- * to perform the final YUV->RGB conversion.
- *
- * Brian Paul 13 September 2002
- * Keith Whitwell 30 November 2004
- */
-
-
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#define GL_GLEXT_PROTOTYPES
-#include <GL/glut.h>
-#include <assert.h>
-
-#include "../util/readtex.c" /* I know, this is a hack. */
-
-#define TEXTURE_FILE "../images/tile.rgb"
-
-static GLfloat Xrot = 0, Yrot = 0, Zrot = 0;
-static GLint ImgWidth, ImgHeight;
-static GLushort *ImageYUV = NULL;
-static const GLuint yuvObj = 100;
-static const GLuint rgbObj = 101;
-
-static void Init( int argc, char *argv[] );
-
-static void DrawObject(void)
-{
- glBegin(GL_QUADS);
-
- glTexCoord2f(0, 0);
- glVertex2f(-1.0, -1.0);
-
- glTexCoord2f(1, 0);
- glVertex2f(1.0, -1.0);
-
- glTexCoord2f(1, 1);
- glVertex2f(1.0, 1.0);
-
- glTexCoord2f(0, 1);
- glVertex2f(-1.0, 1.0);
-
- glEnd();
-}
-
-static void Display( void )
-{
- static int firsttime = 1;
-
- if (firsttime) {
- firsttime = 0;
- Init( 0, 0 ); /* don't ask */
- }
-
- glClear( GL_COLOR_BUFFER_BIT );
- glBindTexture(GL_TEXTURE_2D, yuvObj);
-
- glPushMatrix();
- glEnable(GL_FRAGMENT_PROGRAM_ARB);
- glTranslatef( -1.1, 0.0, -15.0 );
- glRotatef(Xrot, 1.0, 0.0, 0.0);
- glRotatef(Yrot, 0.0, 1.0, 0.0);
- glRotatef(Zrot, 0.0, 0.0, 1.0);
- glBindTexture(GL_TEXTURE_2D, yuvObj);
- DrawObject();
- glPopMatrix();
-
- glPushMatrix();
- glDisable(GL_FRAGMENT_PROGRAM_ARB);
- glTranslatef( 1.1, 0.0, -15.0 );
- glRotatef(Xrot, 1.0, 0.0, 0.0);
- glRotatef(Yrot, 0.0, 1.0, 0.0);
- glRotatef(Zrot, 0.0, 0.0, 1.0);
- glBindTexture(GL_TEXTURE_2D, rgbObj);
- DrawObject();
- glPopMatrix();
-
- glutSwapBuffers();
-}
-
-
-static void Reshape( int width, int height )
-{
- glViewport( 0, 0, width, height );
- glMatrixMode( GL_PROJECTION );
- glLoadIdentity();
- glFrustum( -1.1, 1.1, -1.1, 1.1, 10.0, 100.0 );
- 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();
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
- float step = 3.0;
- (void) x;
- (void) y;
-
- switch (key) {
- case GLUT_KEY_UP:
- Xrot += step;
- break;
- case GLUT_KEY_DOWN:
- Xrot -= step;
- break;
- case GLUT_KEY_LEFT:
- Yrot += step;
- break;
- case GLUT_KEY_RIGHT:
- Yrot -= step;
- break;
- }
- glutPostRedisplay();
-}
-
-
-
-
-/* #define LINEAR_FILTER */
-
-static void Init( int argc, char *argv[] )
-{
- const char *file;
- const GLfloat yuvtorgb[16] = {
- 1.164, 1.164, 1.164, 0,
- 0, -.391, 2.018, 0,
- 1.596, -.813, 0.0, 0,
- (-.0625*1.164 + -.5*1.596), (-.0625*1.164 + -.5*-.813 + -.5*-.391), (-.0625*1.164 + -.5*2.018), 1
- };
-
- if (!glutExtensionSupported("GL_ARB_fragment_program")) {
- printf("Error: GL_ARB_fragment_program not supported!\n");
- exit(1);
- }
-
- if (!glutExtensionSupported("GL_EXT_422_pixels")) {
- printf("Error: GL_EXT_422_pixels not supported!\n");
- exit(1);
- }
-
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
- file = TEXTURE_FILE;
-
- /* Load the texture as YCbCr.
- */
- glBindTexture(GL_TEXTURE_2D, yuvObj);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
- ImageYUV = LoadYUVImage(file, &ImgWidth, &ImgHeight );
- if (!ImageYUV) {
- printf("Couldn't read %s\n", TEXTURE_FILE);
- exit(0);
- }
-
- glTexImage2D(GL_TEXTURE_2D, 0,
- GL_RGB,
- ImgWidth, ImgHeight, 0,
- GL_422_EXT,
- GL_UNSIGNED_BYTE, ImageYUV);
-
- glEnable(GL_TEXTURE_2D);
-
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-
- {
- static const char *modulateYUV =
- "!!ARBfp1.0\n"
- "TEMP R0;\n"
- "TEX R0, fragment.texcoord[0], texture[0], 2D; \n"
-
- "ADD R0, R0, {-0.0625, -0.5, -0.5, 0.0}; \n"
- "DP3 result.color.x, R0, {1.164, 1.596, 0.0}; \n"
- "DP3 result.color.y, R0, {1.164, -0.813, -0.391}; \n"
- "DP3 result.color.z, R0, {1.164, 0.0, 2.018}; \n"
- "MOV result.color.w, R0.w; \n"
-
- "END"
- ;
-
- GLuint modulateProg;
-
-
- /* Setup the fragment program */
- glGenProgramsARB(1, &modulateProg);
- glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
- glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
- strlen(modulateYUV), (const GLubyte *)modulateYUV);
-
- printf("glGetError = 0x%x\n", (int) glGetError());
- printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
- (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
- assert(glIsProgramARB(modulateProg));
-
- }
-
- /* Now the same, but use a color matrix to do the conversion at
- * upload time:
- */
- glBindTexture(GL_TEXTURE_2D, rgbObj);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
- glMatrixMode( GL_COLOR_MATRIX );
- glLoadMatrixf( yuvtorgb );
-
- glTexImage2D(GL_TEXTURE_2D, 0,
- GL_RGB,
- ImgWidth, ImgHeight, 0,
- GL_422_EXT,
- GL_UNSIGNED_BYTE, ImageYUV);
-
- glLoadIdentity();
- glMatrixMode( GL_MODELVIEW );
-
- glEnable(GL_TEXTURE_2D);
-
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-
-
- glShadeModel(GL_FLAT);
- glClearColor(0.3, 0.3, 0.4, 1.0);
-}
-
-
-int main( int argc, char *argv[] )
-{
- glutInit( &argc, argv );
- glutInitWindowSize( 300, 300 );
- glutInitWindowPosition( 0, 0 );
- glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
- glutCreateWindow(argv[0] );
- glutReshapeFunc( Reshape );
- glutKeyboardFunc( Key );
- glutSpecialFunc( SpecialKey );
- glutDisplayFunc( Display );
- glutMainLoop();
- return 0;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-30 23:14:04 +0000