Attachment 15056 Details for Bug 12082 – test case

test case

fdo_12082.c (text/plain), 2.61 KB, created by Shuang He on 2008-03-11 22:35:04 UTC

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Creator: Shuang He

Created: 2008-03-11 22:35:04 UTC

Size: 2.61 KB

patch

obsolete

>#include <GL/glut.h>
>#include <stdlib.h>
>#include <stdio.h>
>#include <math.h>
>
>#define WINDSIZEX 100
>#define WINDSIZEY 100
>
>static GLfloat colorTable[][3] = {
>  {
>   0.0, 0.0, 0.0},
>  {
>   1.0, 0.0, 0.0},
>  {
>   0.0, 1.0, 0.0},
>  {
>   0.0, 0.0, 1.0},
>  {
>   1.0, 1.0, 1.0},
>  {
>   1.0, 1.0, 0.0},
>  {
>   1.0, 0.0, 1.0},
>  {
>   0.0, 1.0, 1.0}
>};
>
>
>#define TEXTURE_SIZE 64
>void
>MakeMipmap (void)
>{
>  GLfloat buf[TEXTURE_SIZE * TEXTURE_SIZE * 3];
>  GLint i, j, level, size;
>  GLfloat *ptr;
>
>  level = 0;
>  for (size = TEXTURE_SIZE; size > 0; size /= 2)
>    {
>      ptr = buf;
>      for (i = 0; i < size; i++)
>	for (j = 0; j < size; j++)
>	  {
>	    *ptr++ = colorTable[level + 1][0];
>	    *ptr++ = colorTable[level + 1][1];
>	    *ptr++ = colorTable[level + 1][2];
>	  }
>      glTexImage2D (GL_TEXTURE_2D, level, 3, size, size, 0, GL_RGB, GL_FLOAT,
>		    buf);
>      level++;
>    }
>}
>
>
>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;
>  GLuint texName;
>  GLfloat maxLodBias;
>
>
>  glClear (GL_COLOR_BUFFER_BIT);
>
>  glGenTextures (1, &texName);
>  glBindTexture (GL_TEXTURE_1D, texName);
>  MakeMipmap ();
>
>  glBindTexture (GL_TEXTURE_1D, texName);
>
>  glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 5);
>  glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1000);
>  glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_LOD, 0);
>  glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAX_LOD, 1000);
>
>
>  glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
>  glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
>		   GL_NEAREST_MIPMAP_NEAREST);
>
>  glEnable (GL_TEXTURE_2D);
>  glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
>
>
>  glClear (GL_COLOR_BUFFER_BIT);
>  glBegin (GL_POLYGON);
>  glTexCoord2f (0.0, 0.0);
>  glVertex2i (0, 0);
>  glTexCoord2f (0.0, 1.0);
>  glVertex2i (0, TEXTURE_SIZE);
>  glTexCoord2f (1.0, 1.0);
>  glVertex2i (TEXTURE_SIZE, TEXTURE_SIZE);
>  glTexCoord2f (1.0, 0.0);
>  glVertex2i (TEXTURE_SIZE, 0);
>  glEnd ();
>
>  glFlush ();
>}
>
>void
>display (void)
>{
>  glMatrixMode (GL_PROJECTION);
>  glLoadIdentity ();
>  gluOrtho2D (0, WINDSIZEX, 0, WINDSIZEX);
>  test ();
>}
>
>int
>main (int argc, char **argv)
>{
>  glutInit (&argc, argv);
>  glutInitDisplayMode (GLUT_SINGLE | GLUT_RGBA);
>  glutInitWindowSize (WINDSIZEX, WINDSIZEY);
>  glutInitWindowPosition (100, 100);
>  glutCreateWindow (argv[0]);
>  init ();
>  glutDisplayFunc (display);
>  glutMainLoop ();
>  return 0;
>}

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Attachments on bug 12082: 11189 | 15056

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