1 files changed, 193 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa_6.4.2/progs/tests/yuvrect.c b/nx-X11/extras/Mesa_6.4.2/progs/tests/yuvrect.c
new file mode 100644
index 000000000..acef40609
--- /dev/null
+++ b/nx-X11/extras/Mesa_6.4.2/progs/tests/yuvrect.c
@@ -0,0 +1,193 @@
+/*
+ * 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 "../util/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 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();
+}
+
+
+
+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;
+
+   ImageYUV = LoadYUVImage(file, &ImgWidth, &ImgHeight);
+   if (!ImageYUV) {
+      printf("Couldn't read %s\n", TEXTURE_FILE);
+      exit(0);
+   }
+
+   printf("Image: %dx%d\n", ImgWidth, ImgHeight);
+
+   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);
+
+   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;
+}