progs/util/showbuffer.h

   1 /* showbuffer. h*/
   2
   3 /*
   4  * Copy the depth buffer to the color buffer as a grayscale image.
   5  * Useful for inspecting the depth buffer values.
   6  *
   7  * This program is in the public domain.
   8  *
   9  * Brian Paul   November 4, 1998
  10  */
  11
  12
  13 #ifndef SHOWBUFFER_H
  14 #define SHOWBUFFER_H
  15
  16
  17 #include <GL/gl.h>
  18
  19
  20
  21 extern void
  22 ShowDepthBuffer( GLsizei winWidth, GLsizei winHeight,
  23                  GLfloat zBlack, GLfloat zWhite );
  24
  25
  26 extern void
  27 ShowAlphaBuffer( GLsizei winWidth, GLsizei winHeight );
  28
  29
  30 extern void
  31 ShowStencilBuffer( GLsizei winWidth, GLsizei winHeight,
  32                    GLfloat scale, GLfloat bias );
  33
  34
  35
  36 #endif