Attachment 14550 Details for Bug 14658 – test case

test case

occluqry2.c (text/plain), 2.09 KB, created by Shuang He on 2008-02-25 00:15:26 UTC

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Filename:

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Creator: Shuang He

Created: 2008-02-25 00:15:26 UTC

Size: 2.09 KB

patch

obsolete

>#include <GL/glut.h>
>#include <stdlib.h>
>#include <stdio.h>
>#include <math.h>
>
>#define WINDSIZEX 100
>#define WINDSIZEY 100
>
>
>void
>init (void)
>{
>    int i;
>    GLfloat white[] = { 1.0, 1.0, 1.0, 1.0 };
>
>    glClearColor (0.0, 0.0, 0.0, 1.0);
>    glColor4fv (white);
>    glDisable (GL_DITHER);
>}
>
>
>static void
>drawbox (GLfloat left, GLfloat right, GLfloat top, GLfloat btm, GLfloat z)
>{
>    glBegin (GL_POLYGON);
>    glVertex3f (left, top, z);
>    glVertex3f (right, top, z);
>    glVertex3f (right, btm, z);
>    glVertex3f (left, btm, z);
>    glEnd ();
>}
>
>#define START_QUERY(id)\
>	        glBeginQueryARB(GL_SAMPLES_PASSED_ARB, id);
>#define TERM_QUERY()\
>	        glEndQueryARB(GL_SAMPLES_PASSED_ARB);\
>
>
>
>static void
>test (void)
>{
>    int i, j;
>    GLuint texName;
>    GLuint queryId;
>
>    int samples;
>    int ready;
>
>
>    glClear (GL_COLOR_BUFFER_BIT);
>    glEnable (GL_DEPTH_TEST);
>    glGenQueriesARB (1, &queryId);
>
>    if (queryId <= 0)
>        return;
>
>    glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
>    glMatrixMode (GL_PROJECTION);
>    glPushMatrix ();
>    glLoadIdentity ();
>    glOrtho (-1.0, 1.0, -1.0, 1.0, 0.0, 25.0);
>
>    glDepthMask (GL_TRUE);
>    glColor3f (0.0, 1.0, 0);
>    drawbox (-0.6, 0.6, 0.6, -0.6, -2.0);
>
>    glDepthMask (GL_FALSE);
>
>    glColor3f (0, 0, 1);
>    START_QUERY (queryId);
>    drawbox (-0.3, 0.3, 0.3, -0.3, -1.0);
>    TERM_QUERY ();
>
>    do
>    {
>        glGetQueryObjectivARB (queryId, GL_QUERY_RESULT_AVAILABLE_ARB,
>                               &ready);
>    }
>    while (!ready);
>
>    glGetQueryObjectuivARB (queryId, GL_QUERY_RESULT_ARB, &samples);
>    printf ("number of samples passed depth test = %d\n", samples);
>    printf ("should be 900\n");
>    glFlush ();
>}
>
>void
>display (void)
>{
>    glMatrixMode (GL_PROJECTION);
>    glLoadIdentity ();
>    test ();
>}
>
>int
>main (int argc, char **argv)
>{
>    glutInit (&argc, argv);
>    glutInitDisplayMode (GLUT_SINGLE | GLUT_RGBA | GLUT_DEPTH);
>    glutInitWindowSize (WINDSIZEX, WINDSIZEY);
>    glutInitWindowPosition (100, 100);
>    glutCreateWindow (argv[0]);
>    init ();
>    glutDisplayFunc (display);
>    glutMainLoop ();
>    return 0;
>}

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Attachments on bug 14658: 14550

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