Attachment 27726 Details for Bug 64945

Test case

point_vprog.c (text/plain), 3.23 KB, created by Matthias Hopf on 2005-01-18 23:20:52 UTC

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Creator: Matthias Hopf

Created: 2005-01-18 23:20:52 UTC

Size: 3.23 KB

patch

obsolete

>#include <stdio.h>
>#include <stdlib.h>
>#include <string.h>
>#include <assert.h>
>
>#include <GL/glut.h>
>#include <GL/glext.h>
>
>#define CHECKERR(a) do { int i = glGetError (); if (i != GL_NO_ERROR) printf ("   *** %s: 0x%x = %s\n", a, i, gluErrorString (i)); } while (0)
>
>#if     defined (_WIN32)
>#define getaddr(x) wglGetProcAddress(x)
>#else
>extern void (*glXGetProcAddressARB(const GLubyte *procName))();
>#define getaddr(x) glXGetProcAddressARB(x)
>#endif
>
>
>int gfxsizex = 400, gfxsizey = 300;
>
>PFNGLBINDPROGRAMARBPROC          glBindProgramARB_;
>PFNGLGENPROGRAMSARBPROC          glGenProgramsARB_;
>PFNGLPROGRAMSTRINGARBPROC        glProgramStringARB_;
>
>GLint vprog;
>
>const char *vprog_src = "!!ARBvp1.0\n"
>        "ATTRIB posin   = vertex.position;\n"
>        "ATTRIB colin   = vertex.color;\n"
>        "PARAM  const   = 100;\n"
>        "PARAM  trafo[] = { state.matrix.mvp };\n"
>        "OUTPUT posout  = result.position;\n"
>        "OUTPUT colout  = result.color;\n"
>        "MOV colout, colin;\n"
>        "DP4 posout.x, posin, trafo[0];\n"
>        "DP4 posout.y, posin, trafo[1];\n"
>        "DP4 posout.z, posin, trafo[2];\n"
>        "DP4 posout.w, posin, trafo[3];\n"
>        "END\n";
>
>
>void init (void) {
>    glBindProgramARB_   = getaddr ("glBindProgramARB");
>    glGenProgramsARB_   = getaddr ("glGenProgramsARB");
>    glProgramStringARB_ = getaddr ("glProgramStringARB");
>    assert (glBindProgramARB_);
>    assert (glGenProgramsARB_);
>    assert (glProgramStringARB_);
>
>    glPointSize          (50);
>    glHint               (GL_POINT_SMOOTH_HINT, GL_NICEST);
>    glEnable             (GL_POINT_SMOOTH);
>
>    glGenProgramsARB_    (1, &vprog);
>    glBindProgramARB_    (GL_VERTEX_PROGRAM_ARB, vprog);
>    glProgramStringARB_  (GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
>                          strlen (vprog_src),    vprog_src);
>}
>
>void run (void) {
>    if (! glBindProgramARB_)
>	return;
>    glClear    (GL_COLOR_BUFFER_BIT);
>    glEnable             (GL_VERTEX_PROGRAM_ARB);
>    glBindProgramARB_    (GL_VERTEX_PROGRAM_ARB, vprog);
>    glBegin    (GL_POINTS);
>    glColor4ub (255, 0, 0, 255);
>    glVertex3f (100, 100, -0.5);
>    glVertex3f (200, 100, -0.5);
>    glVertex3f (300, 100, -0.5);
>    glEnd ();
>    glDisable  (GL_VERTEX_PROGRAM_ARB);
>    glBegin    (GL_POINTS);
>    glColor4ub (0, 255, 0, 255);
>    glVertex3f (100, 200, -0.5);
>    glVertex3f (200, 200, -0.5);
>    glVertex3f (300, 200, -0.5);
>    glEnd ();
>    
>    glutSwapBuffers ();
>    glutPostRedisplay ();
>}
>
>
>void reshape (int width, int height) {
>    fprintf (stderr, "reshape %d %d\n", width, height);
>    gfxsizex = width;
>    gfxsizey = height;
>    glViewport     (0, 0, width, height);
>    glMatrixMode   (GL_PROJECTION);
>    glLoadIdentity ();
>    glOrtho        (0, width, 0, height, 0, 1);
>    glMatrixMode   (GL_MODELVIEW);
>    glLoadIdentity ();
>    init ();
>    glutPostRedisplay ();
>}
>
>
>void keyboard (unsigned char key, int x, int y) {
>    exit (0);
>}
>
>
>int main (int argc, char *argv[]) {
>    glutInitWindowSize  (gfxsizex, gfxsizey);
>    glutInit            (&argc, argv);
>
>    glutInitDisplayMode (GLUT_RGB|GLUT_DOUBLE);
>    glutCreateWindow    (argv[0]);
>    glutReshapeFunc     (reshape);
>    glutDisplayFunc     (run);
>    glutKeyboardFunc    (keyboard);
>
>    glutMainLoop        ();
>    exit (0);
>}

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Attachments on bug 64945: 27726 | 27727