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Diffstat (limited to 'progs/tests/mapvbo.c')
-rw-r--r-- | progs/tests/mapvbo.c | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/progs/tests/mapvbo.c b/progs/tests/mapvbo.c deleted file mode 100644 index 52a22a5e79..0000000000 --- a/progs/tests/mapvbo.c +++ /dev/null @@ -1,139 +0,0 @@ -/* - * Test glMapBuffer() call immediately after glDrawArrays(). - * See details below. - * - * NOTE: Do not use freeglut with this test! It calls the Display() - * callback twice right away instead of just once. - * - * Brian Paul - * 27 Feb 2009 - */ - - -#include <stdio.h> -#include <stdlib.h> -#include <GL/glew.h> -#include <GL/glut.h> - -static GLuint BufferID; - - -static GLuint Win; - - - - -/* - * Create VBO (position and color) and load with data. - */ -static void -SetupBuffers(void) -{ - static const GLfloat data[] = { - /* vertex */ /* color */ - 0, -1, 0, 1, 1, 0, - 1, 0, 0, 1, 1, 0, - 0, 1, 0, 1, 1, 0, - -1, 0, 0, 1, 1, 0 - }; - - glGenBuffersARB(1, &BufferID); - glBindBufferARB(GL_ARRAY_BUFFER_ARB, BufferID); - glBufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(data), data, - GL_STATIC_DRAW_ARB); -} - - -static void -Draw(void) -{ - static int count = 1; - - printf("Draw Frame %d\n", count); - count++; - - glBindBufferARB(GL_ARRAY_BUFFER_ARB, BufferID); - glVertexPointer(3, GL_FLOAT, 24, 0); - glEnableClientState(GL_VERTEX_ARRAY); - - glColorPointer(3, GL_FLOAT, 24, (void*) 12); - glEnableClientState(GL_COLOR_ARRAY); - - glDrawArrays(GL_TRIANGLE_FAN, 0, 4); - - if (0) - glFinish(); - - /* Immediately map the color buffer and change something. - * This should not effect the first glDrawArrays above, but the - * next time we draw we should see a black vertex. - */ - if (1) { - GLfloat *m = (GLfloat *) glMapBufferARB(GL_ARRAY_BUFFER_ARB, - GL_WRITE_ONLY_ARB); - m[3] = m[4] = m[5] = 0.0f; /* black vertex */ - glUnmapBufferARB(GL_ARRAY_BUFFER_ARB); - } -} - - -static void Display( void ) -{ - glClear( GL_COLOR_BUFFER_BIT ); - Draw(); - glutSwapBuffers(); -} - - -static void Reshape( int width, int height ) -{ - float ar = (float) width / (float) height; - glViewport( 0, 0, width, height ); - glMatrixMode( GL_PROJECTION ); - glLoadIdentity(); - glFrustum( -ar, ar, -1.0, 1.0, 5.0, 25.0 ); - 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; - if (key == 27) { - glutDestroyWindow(Win); - exit(0); - } - glutPostRedisplay(); -} - - -static void Init( void ) -{ - if (!glutExtensionSupported("GL_ARB_vertex_buffer_object")) { - printf("GL_ARB_vertex_buffer_object not found!\n"); - exit(0); - } - printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); - - SetupBuffers(); -} - - -int main( int argc, char *argv[] ) -{ - glutInit( &argc, argv ); - glutInitWindowPosition( 0, 0 ); - glutInitWindowSize( 300, 300 ); - glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE ); - Win = glutCreateWindow(argv[0]); - glewInit(); - glutReshapeFunc( Reshape ); - glutKeyboardFunc( Key ); - glutDisplayFunc( Display ); - Init(); - glutMainLoop(); - return 0; -} |