Attachment 7075 Details for Bug 8355 – Vertex attribute bug test program.

Vertex attribute bug test program.

attribbug.c (text/x-csrc), 3.44 KB, created by Oliver McFadden on 2006-09-19 08:52:55 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Oliver McFadden

Created: 2006-09-19 08:52:55 UTC

Size: 3.44 KB

patch

obsolete

>#include <assert.h>
>#include <string.h>
>#include <stdio.h>
>#include <stdlib.h>
>#include <math.h>
>#include <GL/glut.h>
>
>static GLuint FragProg;
>static GLuint VertProg;
>
>static void
>Redisplay (void)
>{
>  glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
>  glEnable (GL_FRAGMENT_PROGRAM_ARB);
>  glEnable (GL_VERTEX_PROGRAM_ARB);
>  glDisable (GL_LIGHTING);
>  glutSolidSphere (2.0, 10, 5);
>  glutSwapBuffers ();
>}
>
>
>static void
>Reshape (int width, int height)
>{
>  glViewport (0, 0, width, height);
>  glMatrixMode (GL_PROJECTION);
>  glLoadIdentity ();
>  glFrustum (-1.0, 1.0, -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;
>  switch (key)
>    {
>    case 27:
>      glDeleteProgramsARB (1, &VertProg);
>      glDeleteProgramsARB (1, &FragProg);
>      exit (0);
>      break;
>    }
>  glutPostRedisplay ();
>}
>
>static int
>FindLine (const char *program, int position)
>{
>  int i, line = 1;
>  for (i = 0; i < position; i++)
>    {
>      if (program[i] == '\n')
>	line++;
>    }
>  return line;
>}
>
>
>static void
>Init (void)
>{
>  GLint errorPos;
>
>  static const char *fragProgramText = "!!ARBfp1.0\n"
>    "MOV result.color, fragment.texcoord[0];\n" "END \n";
>
>  static const char *vertProgramText =
>    "!!ARBvp1.0\n"
>    "DP4 result.position.x, state.matrix.mvp.row[0], vertex.position;\n"
>    "DP4 result.position.y, state.matrix.mvp.row[1], vertex.position;\n"
>    "DP4 result.position.z, state.matrix.mvp.row[2], vertex.position;\n"
>    "DP4 result.position.w, state.matrix.mvp.row[3], vertex.position;\n"
>    "MOV result.texcoord[0], vertex.attrib[8];\n" "END\n";
>
>  glGenProgramsARB (1, &FragProg);
>  assert (FragProg > 0);
>  glBindProgramARB (GL_FRAGMENT_PROGRAM_ARB, FragProg);
>  glProgramStringARB (GL_FRAGMENT_PROGRAM_ARB,
>		      GL_PROGRAM_FORMAT_ASCII_ARB,
>		      strlen (fragProgramText),
>		      (const GLubyte *) fragProgramText);
>  glGetIntegerv (GL_PROGRAM_ERROR_POSITION_ARB, &errorPos);
>  if (glGetError () != GL_NO_ERROR || errorPos != -1)
>    {
>      int l = FindLine (fragProgramText, errorPos);
>      printf ("Fragment Program Error (pos=%d line=%d): %s\n", errorPos, l,
>	      (char *) glGetString (GL_PROGRAM_ERROR_STRING_ARB));
>      exit (0);
>    }
>  assert (glIsProgramARB (FragProg));
>
>  glGenProgramsARB (1, &VertProg);
>  assert (VertProg > 0);
>  glBindProgramARB (GL_VERTEX_PROGRAM_ARB, VertProg);
>  glProgramStringARB (GL_VERTEX_PROGRAM_ARB,
>		      GL_PROGRAM_FORMAT_ASCII_ARB,
>		      strlen (vertProgramText),
>		      (const GLubyte *) vertProgramText);
>  glGetIntegerv (GL_PROGRAM_ERROR_POSITION_ARB, &errorPos);
>  if (glGetError () != GL_NO_ERROR || errorPos != -1)
>    {
>      int l = FindLine (vertProgramText, errorPos);
>      printf ("Vertex Program Error (pos=%d line=%d): %s\n", errorPos, l,
>	      (char *) glGetString (GL_PROGRAM_ERROR_STRING_ARB));
>      exit (0);
>    }
>  assert (glIsProgramARB (VertProg));
>}
>
>
>int
>main (int argc, char *argv[])
>{
>  glutInit (&argc, argv);
>  glutInitWindowPosition (0, 0);
>  glutInitWindowSize (200, 200);
>  glutInitDisplayMode (GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
>  glutCreateWindow (argv[0]);
>  glutReshapeFunc (Reshape);
>  glutKeyboardFunc (Key);
>  glutDisplayFunc (Redisplay);
>
>  Init ();
>
>#if 1
>  // double, this works fine.
>  glVertexAttrib1dARB (8, 0.5);
>#else
>  // float, this does not work. why?
>  glVertexAttrib1fARB (8, 0.5);
>#endif
>
>  glEnableVertexAttribArrayARB(8);
>
>  glutMainLoop ();
>  return 0;
>}

Actions: View

Attachments on bug 8355: 7075

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.