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-rw-r--r--progs/tests/texgenmix.c640
1 files changed, 640 insertions, 0 deletions
diff --git a/progs/tests/texgenmix.c b/progs/tests/texgenmix.c
new file mode 100644
index 00000000000..f8942f1d199
--- /dev/null
+++ b/progs/tests/texgenmix.c
@@ -0,0 +1,640 @@
+
+/*
+ * Demonstrates mixed texgen/non-texgen texture coordinates.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <GL/glut.h>
+
+#undef max
+#undef min
+#define max( a, b ) ((a) >= (b) ? (a) : (b))
+#define min( a, b ) ((a) <= (b) ? (a) : (b))
+
+GLfloat labelColor0[4] = { 1.0, 1.0, 1.0, 1.0 };
+GLfloat labelColor1[4] = { 1.0, 1.0, 0.4, 1.0 };
+GLfloat *labelInfoColor = labelColor0;
+
+GLboolean doubleBuffered = GL_TRUE;
+GLboolean drawTextured = GL_TRUE;
+
+int textureWidth = 64;
+int textureHeight = 64;
+
+int winWidth = 580, winHeight = 720;
+
+const GLfloat texmat_swap_rq[16] = { 1.0, 0.0, 0.0, 0.0,
+ 0.0, 1.0, 0.0, 0.0,
+ 0.0, 0.0, 0.0, 1.0,
+ 0.0, 0.0, 1.0, 0.0};
+
+const GLfloat nullPlane[4] = { 0.0, 0.0, 0.0, 0.0 };
+const GLfloat ObjPlaneS1[4] = { 1.0, 0.0, 1.0, 0.0 };
+const GLfloat ObjPlaneS2[4] = { 0.5, 0.0, 0.0, 0.0 };
+const GLfloat ObjPlaneS3[4] = { 1.0, 0.0, 0.0, 0.0 };
+const GLfloat ObjPlaneT[4] = { 0.0, 1.0, 0.0, 0.0 };
+const GLfloat ObjPlaneT2[4] = { 0.0, 0.5, 0.0, 0.0 };
+const GLfloat ObjPlaneT3[4] = { 0.0, 1.0, 0.0, 0.0 };
+const GLfloat ObjPlaneR[4] = { 0.0, 0.0, 1.0, 0.0 };
+const GLfloat ObjPlaneQ[4] = { 0.0, 0.0, 0.0, 0.5 };
+
+
+static void checkErrors( void )
+{
+ GLenum error;
+
+ while ( (error = glGetError()) != GL_NO_ERROR ) {
+ fprintf( stderr, "Error: %s\n", (char *) gluErrorString( error ) );
+ }
+}
+
+static void drawString( const char *string, GLfloat x, GLfloat y,
+ const GLfloat color[4] )
+{
+ glColor4fv( color );
+ glRasterPos2f( x, y );
+
+ while ( *string ) {
+ glutBitmapCharacter( GLUT_BITMAP_TIMES_ROMAN_10, *string );
+ string++;
+ }
+}
+
+static void begin2D( int width, int height )
+{
+ glMatrixMode( GL_PROJECTION );
+
+ glPushMatrix();
+ glLoadIdentity();
+
+ glOrtho( 0, width, 0, height, -1, 1 );
+ glMatrixMode( GL_MODELVIEW );
+
+ glPushMatrix();
+ glLoadIdentity();
+}
+
+static void end2D( void )
+{
+ glMatrixMode( GL_PROJECTION );
+ glPopMatrix();
+ glMatrixMode( GL_MODELVIEW );
+ glPopMatrix();
+}
+
+static void initialize( void )
+{
+ glMatrixMode( GL_PROJECTION );
+ glLoadIdentity();
+
+ glOrtho( -1.5, 1.5, -1.5, 1.5, -1.5, 1.5 );
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+
+ glShadeModel( GL_FLAT );
+}
+
+/* ARGSUSED1 */
+static void keyboard( unsigned char c, int x, int y )
+{
+ switch ( c ) {
+ case 't':
+ drawTextured = !drawTextured;
+ break;
+ case 27: /* Escape key should force exit. */
+ exit(0);
+ break;
+ default:
+ break;
+ }
+ glutPostRedisplay();
+}
+
+/* ARGSUSED1 */
+static void special( int key, int x, int y )
+{
+ switch ( key ) {
+ case GLUT_KEY_DOWN:
+ break;
+ case GLUT_KEY_UP:
+ break;
+ case GLUT_KEY_LEFT:
+ break;
+ case GLUT_KEY_RIGHT:
+ break;
+ default:
+ break;
+ }
+ glutPostRedisplay();
+}
+
+static void
+reshape( int w, int h )
+{
+ winWidth = w;
+ winHeight = h;
+ /* No need to call glViewPort here since "draw" calls it! */
+}
+
+static void loadTexture( int width, int height )
+{
+ int alphaSize = 1;
+ int rgbSize = 3;
+ GLubyte *texImage, *p;
+ int elementsPerGroup, elementSize, groupSize, rowSize;
+ int i, j;
+
+
+ elementsPerGroup = alphaSize + rgbSize;
+ elementSize = sizeof(GLubyte);
+ groupSize = elementsPerGroup * elementSize;
+ rowSize = width * groupSize;
+
+ if ( (texImage = (GLubyte *) malloc( height * rowSize ) ) == NULL ) {
+ fprintf( stderr, "texture malloc failed\n" );
+ return;
+ }
+
+ for ( i = 0 ; i < height ; i++ )
+ {
+ p = texImage + i * rowSize;
+
+ for ( j = 0 ; j < width ; j++ )
+ {
+ if ( rgbSize > 0 )
+ {
+ /**
+ ** +-----+-----+
+ ** | | |
+ ** | R | G |
+ ** | | |
+ ** +-----+-----+
+ ** | | |
+ ** | Y | B |
+ ** | | |
+ ** +-----+-----+
+ **/
+ if ( i > height / 2 ) {
+ if ( j < width / 2 ) {
+ p[0] = 0xff;
+ p[1] = 0x00;
+ p[2] = 0x00;
+ } else {
+ p[0] = 0x00;
+ p[1] = 0xff;
+ p[2] = 0x00;
+ }
+ } else {
+ if ( j < width / 2 ) {
+ p[0] = 0xff;
+ p[1] = 0xff;
+ p[2] = 0x00;
+ } else {
+ p[0] = 0x00;
+ p[1] = 0x00;
+ p[2] = 0xff;
+ }
+ }
+ p += 3 * elementSize;
+ }
+
+ if ( alphaSize > 0 )
+ {
+ /**
+ ** +-----------+
+ ** | W |
+ ** | +-----+ |
+ ** | | | |
+ ** | | B | |
+ ** | | | |
+ ** | +-----+ |
+ ** | |
+ ** +-----------+
+ **/
+ int i2 = i - height / 2;
+ int j2 = j - width / 2;
+ int h8 = height / 8;
+ int w8 = width / 8;
+ if ( -h8 <= i2 && i2 <= h8 && -w8 <= j2 && j2 <= w8 ) {
+ p[0] = 0x00;
+ } else if ( -2 * h8 <= i2 && i2 <= 2 * h8 && -2 * w8 <= j2 && j2 <= 2 * w8 ) {
+ p[0] = 0x55;
+ } else if ( -3 * h8 <= i2 && i2 <= 3 * h8 && -3 * w8 <= j2 && j2 <= 3 * w8 ) {
+ p[0] = 0xaa;
+ } else {
+ p[0] = 0xff;
+ }
+ p += elementSize;
+ }
+ }
+ }
+
+ glTexImage2D( GL_TEXTURE_2D, 0,
+ GL_RGBA, width, height, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, texImage );
+
+ free( texImage );
+}
+
+
+static void drawSample( int x, int y, int w, int h,
+ int texgenenabled, int coordnr )
+{
+ char buf[255];
+
+ glViewport( x, y, w, h );
+ glScissor( x, y, w, h );
+
+ glClearColor( 0.1, 0.1, 0.1, 1.0 );
+ glClear( GL_COLOR_BUFFER_BIT );
+
+ begin2D( w, h );
+ if (texgenenabled == 2) {
+ sprintf( buf, "TexCoord%df", coordnr);
+ drawString( buf, 10, h - 15, labelInfoColor );
+ sprintf( buf, "texgen enabled for %s coordinate(s)", coordnr == 2 ? "S" : "S/T");
+ drawString( buf, 10, 5, labelInfoColor );
+ }
+ else if (texgenenabled == 0) {
+ sprintf( buf, "TexCoord%df", coordnr);
+ drawString( buf, 10, h - 15, labelInfoColor );
+ drawString( "no texgen", 10, 5, labelInfoColor );
+ }
+ else if (texgenenabled == 1) {
+ drawString( "no TexCoord", 10, h - 15, labelInfoColor );
+ sprintf( buf, "texgen enabled for %s coordinate(s)",
+ coordnr == 2 ? "S/T" : (coordnr == 3 ? "S/T/R" : "S/T/R/Q"));
+ drawString( buf, 10, 5, labelInfoColor );
+ }
+
+ end2D();
+
+ glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE );
+
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
+
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
+
+ loadTexture( textureWidth, textureHeight );
+
+ if ( drawTextured ) {
+ glEnable( GL_TEXTURE_2D );
+ }
+
+ glDisable( GL_TEXTURE_GEN_S );
+ glDisable( GL_TEXTURE_GEN_T );
+ glDisable( GL_TEXTURE_GEN_R );
+ glDisable( GL_TEXTURE_GEN_Q );
+
+ glMatrixMode( GL_TEXTURE );
+ glLoadIdentity();
+ glMatrixMode( GL_MODELVIEW );
+ glPushMatrix();
+
+ switch (coordnr) {
+ case 2:
+ switch (texgenenabled) {
+ case 0:
+ glBegin( GL_QUADS );
+ glTexCoord2f( 0.0, 0.0 );
+ glVertex2f( -0.8, -0.8 );
+
+ glTexCoord2f( 1.0, 0.0 );
+ glVertex2f( 0.8, -0.8 );
+
+ glTexCoord2f( 1.0, 1.0 );
+ glVertex2f( 0.8, 0.8 );
+
+ glTexCoord2f( 0.0, 1.0 );
+ glVertex2f( -0.8, 0.8 );
+ glEnd();
+ break;
+ case 1:
+ /* why doesn't this case work with software mesa? The S/T tex coords
+ should turn out as 0 and 1 if dot product of vertex coordinates with
+ ObjPlaneS3/T3 is calculated, and Q coord should be default value (1.0), no?
+ Submitting one dummy tex coordinate fixes this? */
+ glTranslatef( -0.8, -0.8, 0.0 );
+ glScalef( 1.6, 1.6, 1.0 );
+ glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGenfv(GL_S, GL_OBJECT_PLANE, ObjPlaneS3);
+ glTexGenfv(GL_T, GL_OBJECT_PLANE, ObjPlaneT3);
+ glTexGenfv(GL_R, GL_OBJECT_PLANE, nullPlane);
+ glTexGenfv(GL_Q, GL_OBJECT_PLANE, nullPlane);
+
+ glEnable( GL_TEXTURE_GEN_S );
+ glEnable( GL_TEXTURE_GEN_T );
+
+ glBegin( GL_QUADS );
+/* glTexCoord1f( 0.0 );*/
+ glVertex2f( 0.0, 0.0 );
+ glVertex2f( 1.0, 0.0 );
+ glVertex2f( 1.0, 1.0 );
+ glVertex2f( 0.0, 1.0 );
+ glEnd();
+ break;
+ case 2:
+ /* make sure that texgen T and non-texgen S coordinate are wrong */
+ glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGenfv(GL_S, GL_OBJECT_PLANE, ObjPlaneS1);
+ glTexGenfv(GL_T, GL_OBJECT_PLANE, nullPlane);
+ glTexGenfv(GL_R, GL_OBJECT_PLANE, nullPlane);
+ glTexGenfv(GL_Q, GL_OBJECT_PLANE, nullPlane);
+
+ glEnable( GL_TEXTURE_GEN_S );
+
+ glBegin( GL_QUADS );
+ /* use z coordinate to get correct texgen values... */
+ glTexCoord2f( 0.0, 0.0 );
+ glVertex3f( -0.8, -0.8, 0.8 );
+
+ glTexCoord2f( 0.0, 0.0 );
+ glVertex3f( 0.8, -0.8, 0.2 );
+
+ glTexCoord2f( 0.0, 1.0 );
+ glVertex3f( 0.8, 0.8, 0.2 );
+
+ glTexCoord2f( 0.0, 1.0 );
+ glVertex3f( -0.8, 0.8, 0.8 );
+ glEnd();
+ break;
+ }
+ break;
+ case 3:
+ glMatrixMode( GL_TEXTURE );
+ glLoadMatrixf( texmat_swap_rq );
+ glMatrixMode( GL_MODELVIEW );
+ glTranslatef( -0.8, -0.8, 0.0 );
+ glScalef( 1.6, 1.6, 1.0 );
+ switch (texgenenabled) {
+ case 0:
+ glBegin( GL_QUADS );
+ glTexCoord3f( 0.0, 0.0, 0.5 );
+ glVertex2f( 0.0, 0.0 );
+
+ glTexCoord3f( 0.5, 0.0, 0.5 );
+ glVertex2f( 1.0, 0.0 );
+
+ glTexCoord3f( 0.5, 0.5, 0.5 );
+ glVertex2f( 1.0, 1.0 );
+
+ glTexCoord3f( 0.0, 0.5, 0.5 );
+ glVertex2f( 0.0, 1.0 );
+ glEnd();
+ break;
+ case 1:
+ glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGenfv(GL_S, GL_OBJECT_PLANE, ObjPlaneS2);
+ glTexGenfv(GL_T, GL_OBJECT_PLANE, ObjPlaneT2);
+ glTexGenfv(GL_R, GL_OBJECT_PLANE, ObjPlaneR);
+ glTexGenfv(GL_Q, GL_OBJECT_PLANE, nullPlane);
+
+ glEnable( GL_TEXTURE_GEN_S );
+ glEnable( GL_TEXTURE_GEN_T );
+ glEnable( GL_TEXTURE_GEN_R );
+
+ glBegin( GL_QUADS );
+ glVertex3f( 0.0, 0.0, 0.5 );
+ glVertex3f( 1.0, 0.0, 0.5 );
+ glVertex3f( 1.0, 1.0, 0.5 );
+ glVertex3f( 0.0, 1.0, 0.5 );
+ glEnd();
+ break;
+ case 2:
+ /* make sure that texgen R/Q and non-texgen S/T coordinates are wrong */
+ glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGenfv(GL_S, GL_OBJECT_PLANE, ObjPlaneS2);
+ glTexGenfv(GL_T, GL_OBJECT_PLANE, ObjPlaneT2);
+ glTexGenfv(GL_R, GL_OBJECT_PLANE, nullPlane);
+ glTexGenfv(GL_Q, GL_OBJECT_PLANE, nullPlane);
+
+ glEnable( GL_TEXTURE_GEN_S );
+ glEnable( GL_TEXTURE_GEN_T );
+
+ glBegin( GL_QUADS );
+ glTexCoord3f( 0.0, 0.0, 0.5 );
+ glVertex2f( 0.0, 0.0);
+
+ glTexCoord3f( 0.0, 0.0, 0.5 );
+ glVertex2f( 1.0, 0.0);
+
+ glTexCoord3f( 0.0, 0.0, 0.5 );
+ glVertex2f( 1.0, 1.0);
+
+ glTexCoord3f( 0.0, 0.0, 0.5 );
+ glVertex2f( 0.0, 1.0);
+ glEnd();
+ break;
+ }
+ break;
+ case 4:
+ switch (texgenenabled) {
+ case 0:
+ glBegin( GL_QUADS );
+ /* don't need r coordinate but still setting it I'm mean */
+ glTexCoord4f( 0.0, 0.0, 0.0, 0.5 );
+ glVertex2f( -0.8, -0.8 );
+
+ glTexCoord4f( 0.5, 0.0, 0.2, 0.5 );
+ glVertex2f( 0.8, -0.8 );
+
+ glTexCoord4f( 0.5, 0.5, 0.5, 0.5 );
+ glVertex2f( 0.8, 0.8 );
+
+ glTexCoord4f( 0.0, 0.5, 0.5, 0.5 );
+ glVertex2f( -0.8, 0.8 );
+ glEnd();
+ break;
+ case 1:
+ glTranslatef( -0.8, -0.8, 0.0 );
+ glScalef( 1.6, 1.6, 1.0 );
+ /* make sure that texgen R/Q and non-texgen S/T coordinates are wrong */
+ glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGenfv(GL_S, GL_OBJECT_PLANE, ObjPlaneS2);
+ glTexGenfv(GL_T, GL_OBJECT_PLANE, ObjPlaneT2);
+ glTexGenfv(GL_R, GL_OBJECT_PLANE, ObjPlaneR);
+ glTexGenfv(GL_Q, GL_OBJECT_PLANE, ObjPlaneQ);
+
+ glEnable( GL_TEXTURE_GEN_S );
+ glEnable( GL_TEXTURE_GEN_T );
+ glEnable( GL_TEXTURE_GEN_R );
+ glEnable( GL_TEXTURE_GEN_Q );
+
+ glBegin( GL_QUADS );
+ glVertex2f( 0.0, 0.0 );
+ glVertex2f( 1.0, 0.0 );
+ glVertex2f( 1.0, 1.0 );
+ glVertex2f( 0.0, 1.0 );
+ glEnd();
+ break;
+ case 2:
+ glTranslatef( -0.8, -0.8, 0.0 );
+ glScalef( 1.6, 1.6, 1.0 );
+ /* make sure that texgen R/Q and non-texgen S/T coordinates are wrong */
+ glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
+ glTexGenfv(GL_S, GL_OBJECT_PLANE, ObjPlaneS2);
+ glTexGenfv(GL_T, GL_OBJECT_PLANE, ObjPlaneT2);
+ glTexGenfv(GL_R, GL_OBJECT_PLANE, nullPlane);
+ glTexGenfv(GL_Q, GL_OBJECT_PLANE, nullPlane);
+
+ glEnable( GL_TEXTURE_GEN_S );
+ glEnable( GL_TEXTURE_GEN_T );
+
+ glBegin( GL_QUADS );
+ glTexCoord4f( 0.0, 0.0, 0.0, 0.5 );
+ glVertex2f( 0.0, 0.0 );
+
+ glTexCoord4f( 0.0, 0.0, 0.2, 0.5 );
+ glVertex2f( 1.0, 0.0 );
+
+ glTexCoord4f( 0.0, 0.0, 0.5, 0.5 );
+ glVertex2f( 1.0, 1.0 );
+
+ glTexCoord4f( 0.0, 0.0, 0.75, 0.5 );
+ glVertex2f( 0.0, 1.0 );
+ glEnd();
+ break;
+ }
+ break;
+ }
+
+ glPopMatrix();
+ glDisable( GL_TEXTURE_2D );
+
+}
+
+static void display( void )
+{
+ int numX = 3, numY = 3;
+ float xBase = (float) winWidth * 0.01;
+ float xOffset = (winWidth - xBase) / numX;
+ float xSize = max( xOffset - xBase, 1 );
+ float yBase = (float) winHeight * 0.01;
+ float yOffset = (winHeight - yBase) / numY;
+ float ySize = max( yOffset - yBase, 1 );
+ float x, y;
+ int i, j;
+
+ glViewport( 0, 0, winWidth, winHeight );
+ glDisable( GL_SCISSOR_TEST );
+ glClearColor( 0.0, 0.0, 0.0, 0.0 );
+ glClear( GL_COLOR_BUFFER_BIT );
+ glEnable( GL_SCISSOR_TEST );
+
+ x = xBase;
+ y = (winHeight - 1) - yOffset;
+
+ for ( i = 0 ; i < numY ; i++ )
+ {
+
+ labelInfoColor = labelColor1;
+
+
+ for ( j = 0 ; j < numX ; j++ ) {
+ drawSample( x, y, xSize, ySize, i, j+2 );
+ x += xOffset;
+ }
+
+ x = xBase;
+ y -= yOffset;
+ }
+
+ if ( doubleBuffered ) {
+ glutSwapBuffers();
+ } else {
+ glFlush();
+ }
+
+ checkErrors();
+}
+
+static void usage( char *name )
+{
+ fprintf( stderr, "usage: %s [ options ]\n", name );
+ fprintf( stderr, "\n" );
+ fprintf( stderr, "options:\n" );
+ fprintf( stderr, " -sb single buffered\n" );
+ fprintf( stderr, " -db double buffered\n" );
+ fprintf( stderr, " -info print OpenGL driver info\n" );
+}
+
+static void instructions( void )
+{
+ fprintf( stderr, "texgenmix - mixed texgen/non-texgen texture coordinate test\n" );
+ fprintf( stderr, "all quads should look the same!\n" );
+ fprintf( stderr, "\n" );
+ fprintf( stderr, " [t] - toggle texturing\n" );
+}
+
+int main( int argc, char *argv[] )
+{
+ GLboolean info = GL_FALSE;
+ int i;
+
+ glutInit( &argc, argv );
+
+ for ( i = 1 ; i < argc ; i++ ) {
+ if ( !strcmp( "-sb", argv[i] ) ) {
+ doubleBuffered = GL_FALSE;
+ } else if ( !strcmp( "-db", argv[i] ) ) {
+ doubleBuffered = GL_TRUE;
+ } else if ( !strcmp( "-info", argv[i] ) ) {
+ info = GL_TRUE;
+ } else {
+ usage( argv[0] );
+ exit( 1 );
+ }
+ }
+
+ if ( doubleBuffered ) {
+ glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
+ } else {
+ glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE );
+ }
+
+ glutInitWindowSize( winWidth, winHeight );
+ glutInitWindowPosition( 0, 0 );
+ glutCreateWindow( "Mixed texgen/non-texgen texture coordinate test" );
+
+ initialize();
+ instructions();
+
+ if ( info ) {
+ printf( "\n" );
+ 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 ) );
+ }
+
+ glutDisplayFunc( display );
+ glutReshapeFunc( reshape );
+ glutKeyboardFunc( keyboard );
+ glutSpecialFunc( special );
+ glutMainLoop();
+
+ return 0;
+}
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