--- /dev/null
+/* $Id: cva.c,v 1.1 2000/11/01 03:14:12 gareth Exp $ */
+
+/*
+ * Trivial CVA test, good for testing driver fastpaths (especially
+ * indexed vertex buffers if they are supported).
+ *
+ * Gareth Hughes
+ * November 2000
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#define GL_GLEXT_LEGACY
+#include <GL/glut.h>
+
+
+GLfloat verts[][4] = {
+ { 0.25, 0.25, 0.0, 0.0 },
+ { 0.75, 0.25, 0.0, 0.0 },
+ { 0.25, 0.75, 0.0, 0.0 },
+};
+
+GLubyte color[][4] = {
+ { 0xff, 0x00, 0x00, 0x00 },
+ { 0x00, 0xff, 0x00, 0x00 },
+ { 0x00, 0x00, 0xff, 0x00 },
+};
+
+GLuint indices[] = { 0, 1, 2 };
+
+GLboolean compiled = GL_TRUE;
+
+
+void init( void )
+{
+ glClearColor( 0.0, 0.0, 0.0, 0.0 );
+ glShadeModel( GL_SMOOTH );
+
+ glEnable( GL_DEPTH_TEST );
+
+ glEnableClientState( GL_VERTEX_ARRAY );
+ glEnableClientState( GL_COLOR_ARRAY );
+
+ glMatrixMode( GL_PROJECTION );
+ glLoadIdentity();
+ glOrtho( 0.0, 1.0, 0.0, 1.0, -1.0, 1.0 );
+ glMatrixMode( GL_MODELVIEW );
+
+ glVertexPointer( 3, GL_FLOAT, sizeof(verts[0]), verts );
+ glColorPointer( 4, GL_UNSIGNED_BYTE, 0, color );
+
+#ifdef GL_EXT_compiled_vertex_array
+ if ( compiled ) {
+ glLockArraysEXT( 0, 3 );
+ }
+#endif
+}
+
+void display( void )
+{
+ glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+
+ glDrawElements( GL_TRIANGLES, 3, GL_UNSIGNED_INT, indices );
+
+ glFlush();
+}
+
+void keyboard( unsigned char key, int x, int y )
+{
+ switch ( key ) {
+ case 27:
+ exit( 0 );
+ break;
+ }
+}
+
+int main( int argc, char **argv )
+{
+ char *string;
+
+ glutInit( &argc, argv );
+ glutInitDisplayMode( GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH );
+ glutInitWindowSize( 250, 250 );
+ glutInitWindowPosition( 100, 100 );
+ glutCreateWindow( "CVA Test" );
+
+ /* Make sure the server supports GL 1.2 vertex arrays.
+ */
+ string = (char *) glGetString( GL_VERSION );
+
+ if ( !strstr( string, "1.2" ) ) {
+ fprintf( stderr, "This program requires OpenGL 1.2 vertex arrays.\n" );
+ exit( -1 );
+ }
+
+ /* See if the server supports compiled vertex arrays.
+ */
+ string = (char *) glGetString( GL_EXTENSIONS );
+
+ if ( !strstr( string, "GL_EXT_compiled_vertex_array" ) ) {
+ fprintf( stderr, "Compiled vertex arrays not supported by this renderer.\n" );
+ compiled = GL_FALSE;
+ }
+
+ init();
+
+ glutDisplayFunc( display );
+ glutKeyboardFunc( keyboard );
+ glutMainLoop();
+
+ return 0;
+}