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authorKeith Whitwell <keith@tungstengraphics.com>2003-05-20 09:54:58 +0000
committerKeith Whitwell <keith@tungstengraphics.com>2003-05-20 09:54:58 +0000
commitb5d83f2e39dc803dca09991f83bfc69799a1e625 (patch)
tree6db4c6ff32af735f5df653fe19bd49287906cc9e
parent1703cd211b2604a4be448ba960c3b4e8723827c3 (diff)
move LoadYUVImage into readtex.cmesa_4_0_branch
-rw-r--r--progs/tests/yuv.c237
1 files changed, 0 insertions, 237 deletions
diff --git a/progs/tests/yuv.c b/progs/tests/yuv.c
deleted file mode 100644
index ae5c04d3272..00000000000
--- a/progs/tests/yuv.c
+++ /dev/null
@@ -1,237 +0,0 @@
-/*
- * Test the GL_NV_texture_rectangle and GL_MESA_ycrcb_texture extensions.
- *
- * Brian Paul 13 September 2002
- */
-
-#include <assert.h>
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#define GL_GLEXT_PROTOTYPES
-#include <GL/glut.h>
-
-#include "readtex.c" /* I know, this is a hack. */
-
-#define TEXTURE_FILE "../images/girl.rgb"
-
-static GLfloat Xrot = 0, Yrot = 0, Zrot = 0;
-static GLint ImgWidth, ImgHeight;
-static GLenum ImgFormat;
-static GLubyte *Image = NULL;
-static GLushort *ImageYUV = NULL;
-
-
-static void DrawObject(void)
-{
- glBegin(GL_QUADS);
-
- glTexCoord2f(0, 0);
- glVertex2f(-1.0, -1.0);
-
- glTexCoord2f(ImgWidth, 0);
- glVertex2f(1.0, -1.0);
-
- glTexCoord2f(ImgWidth, ImgHeight);
- glVertex2f(1.0, 1.0);
-
- glTexCoord2f(0, ImgHeight);
- glVertex2f(-1.0, 1.0);
-
- glEnd();
-}
-
-
-static void Display( void )
-{
- glClear( GL_COLOR_BUFFER_BIT );
-
- glPushMatrix();
- glRotatef(Xrot, 1.0, 0.0, 0.0);
- glRotatef(Yrot, 0.0, 1.0, 0.0);
- glRotatef(Zrot, 0.0, 0.0, 1.0);
- DrawObject();
- 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, 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 CLAMP( X, MIN, MAX ) ( (X)<(MIN) ? (MIN) : ((X)>(MAX) ? (MAX) : (X)) )
-
-static void ConvertRGBtoYUV(GLint w, GLint h, const GLubyte *src,
- GLushort *dest)
-{
- GLint i, j;
-
- for (i = 0; i < h; i++) {
- for (j = 0; j < w; j++) {
- const GLfloat r = (*src++) / 255.0;
- const GLfloat g = (*src++) / 255.0;
- const GLfloat b = (*src++) / 255.0;
- GLfloat y, cr, cb;
- GLint iy, icr, icb;
-
- y = r * 65.481 + g * 128.553 + b * 24.966 + 16;
- cb = r * -37.797 + g * -74.203 + b * 112.0 + 128;
- cr = r * 112.0 + g * -93.786 + b * -18.214 + 128;
- /*printf("%f %f %f -> %f %f %f\n", r, g, b, y, cb, cr);*/
- iy = (GLint) CLAMP(y, 0, 254);
- icb = (GLint) CLAMP(cb, 0, 254);
- icr = (GLint) CLAMP(cr, 0, 254);
-
- if (j & 1) {
- /* odd */
- *dest = (iy << 8) | icr;
- }
- else {
- /* even */
- *dest = (iy << 8) | icb;
- }
- dest++;
- }
- }
-}
-
-
-static void Init( int argc, char *argv[] )
-{
- GLuint texObj = 100;
- const char *file;
-
- if (!glutExtensionSupported("GL_NV_texture_rectangle")) {
- printf("Sorry, GL_NV_texture_rectangle is required\n");
- exit(0);
- }
-
- if (!glutExtensionSupported("GL_MESA_ycbcr_texture")) {
- printf("Sorry, GL_MESA_ycbcr_texture is required\n");
- exit(0);
- }
-
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
- glBindTexture(GL_TEXTURE_RECTANGLE_NV, texObj);
-#ifdef LINEAR_FILTER
- /* linear filtering looks much nicer but is much slower for Mesa */
- glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-#else
- glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_RECTANGLE_NV, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-#endif
-
- if (argc > 1)
- file = argv[1];
- else
- file = TEXTURE_FILE;
-
- Image = LoadRGBImage(file, &ImgWidth, &ImgHeight, &ImgFormat);
- if (!Image) {
- printf("Couldn't read %s\n", TEXTURE_FILE);
- exit(0);
- }
-
-#if 0
- glTexImage2D(GL_TEXTURE_RECTANGLE_NV, 0,
- GL_RGB, ImgWidth, ImgHeight, 0,
- ImgFormat, GL_UNSIGNED_BYTE, Image);
-#else
- ImageYUV = (GLushort *) malloc(ImgWidth * ImgHeight * sizeof(GLushort));
- ConvertRGBtoYUV(ImgWidth, ImgHeight, Image, ImageYUV);
- glTexImage2D(GL_TEXTURE_RECTANGLE_NV, 0,
- GL_YCBCR_MESA, ImgWidth, ImgHeight, 0,
- GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_MESA, ImageYUV);
-
- assert(glGetError() == GL_NO_ERROR);
- glTexSubImage2D(GL_TEXTURE_RECTANGLE_NV, 0,
- 0, 0, ImgWidth, ImgHeight,
- GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_MESA, ImageYUV);
-
- assert(glGetError() == GL_NO_ERROR);
-#endif
-
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-
- glEnable(GL_TEXTURE_RECTANGLE_NV);
-
- glShadeModel(GL_FLAT);
- glClearColor(0.3, 0.3, 0.4, 1.0);
-
- if (argc > 1 && strcmp(argv[1], "-info")==0) {
- printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
- printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
- printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
- printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
- }
-}
-
-
-int main( int argc, char *argv[] )
-{
- glutInit( &argc, argv );
- glutInitWindowSize( 300, 300 );
- glutInitWindowPosition( 0, 0 );
- glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
- glutCreateWindow(argv[0] );
-
- Init( argc, argv );
-
- glutReshapeFunc( Reshape );
- glutKeyboardFunc( Key );
- glutSpecialFunc( SpecialKey );
- glutDisplayFunc( Display );
-
- glutMainLoop();
- return 0;
-}