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authorftrapero <frantracer@gmail.com>2017-06-27 12:08:38 +0200
committerftrapero <frantracer@gmail.com>2017-06-27 12:08:38 +0200
commitb30506dface604c78e445905ce263f166945d67b (patch)
tree1c23f91f36eb445850b654daa9c5e30bb47072e5 /nx-X11/extras/Mesa_6.4.2/progs/tests/yuvrect.c
parentc032f0e341c981036e9b3245a0e0710ad61599d0 (diff)
parent663631725ee2d633d9ec5821cd48953ffd188d00 (diff)
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Include mesa-6.4.2 project
Diffstat (limited to 'nx-X11/extras/Mesa_6.4.2/progs/tests/yuvrect.c')
-rw-r--r--nx-X11/extras/Mesa_6.4.2/progs/tests/yuvrect.c193
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;
+}