Attachment 13602 Details for Bug 13978 – test case

test case

drawbuffers.c (text/plain), 1.59 KB, created by Shuang He on 2008-01-08 17:41:05 UTC

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Creator: Shuang He

Created: 2008-01-08 17:41:05 UTC

Size: 1.59 KB

patch

obsolete

>#include <GL/glut.h>
>#include <stdlib.h>
>#include <stdio.h>
>#include <math.h>
>#include <string.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
>test (void)
>{
>        int i, j;
>        const int MAX = 2;
>        GLint maxBuf = -1, n, val;
>        GLenum buffers[MAX], err;
>        GLint initDrawBuffer;
>
>        glGetIntegerv(GL_DRAW_BUFFER, &initDrawBuffer);
>
>        glGetIntegerv(GL_MAX_DRAW_BUFFERS, &maxBuf);
>        if (maxBuf < 1) {
>                return;
>        }
>
>        n = maxBuf < MAX ? maxBuf : MAX;
>        for (i = 0; i < n; i++) {
>                buffers[i] = (i & 1) ? GL_FRONT_LEFT : GL_BACK_LEFT;
>        }
>
>        glDrawBuffers(n, buffers);
>
>        for (i = 0; i < n; i++) {
>                glGetIntegerv(GL_DRAW_BUFFER0 + i, &val);
>                if (val != (GLint) buffers[i]) {
>			printf("glGetIntegerv(GL_DRAW_BUFFER%c) returns wrong buffer\n", '0'+i);
>                }
>        }
>
>}
>
>void
>display (void)
>{
>    glMatrixMode (GL_PROJECTION);
>    glLoadIdentity ();
>    gluOrtho2D (0, WINDSIZEX, 0, WINDSIZEX);
>    test ();
>}
>
>int
>main (int argc, char **argv)
>{
>    glutInit (&argc, argv);
>    glutInitDisplayMode (GLUT_DOUBLE | GLUT_RGBA);
>    glutInitWindowSize (WINDSIZEX, WINDSIZEY);
>    glutInitWindowPosition (100, 100);
>    glutCreateWindow (argv[0]);
>    init ();
>    glutDisplayFunc (display);
>    glutMainLoop ();
>    return 0;
>
>}

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Attachments on bug 13978: 13602 | 91486

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