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Date: Sat, 10 Apr 2004 10:05:46 +0200
From: Christian Walther
Subject: [SDL] OpenGL Accumulation Buffer on Mac OS X

Is there a reason for not having OpenGL accumulation buffer support in
SDL 1.2.7 (and as far as I have checked also in the current CVS) on Mac OS
X?

Maybe I am doing something wrong, but it seems very easy to add (at least
it works for for me in 10.3.3) - just add

  if ( this->gl_config.accum_red_size + this->gl_config.accum_green_size + this->gl_config.accum_blue_size + this->gl_config.accum_alpha_size > 0) {
    attr[i++] = NSOpenGLPFAAccumSize;
    attr[i++] = this->gl_config.accum_red_size + this->gl_config.accum_green_size + this->gl_config.accum_blue_size + this->gl_config.accum_alpha_size;
  }

to QZ_SetupOpenGL() in SDL_QuartzGL.m
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slouken committed May 16, 2004
1 parent b22b1b1 commit e2dfd66376fb427c309bbd8b054dc8b4d89909e6
Showing with 8 additions and 0 deletions.
  1. +8 −0 src/video/quartz/SDL_QuartzGL.m
@@ -86,6 +86,14 @@ int QZ_SetupOpenGL (_THIS, int bpp, Uint32 flags) {
attr[i++] = this->gl_config.stencil_size;
}

if ( (this->gl_config.accum_red_size +
this->gl_config.accum_green_size +
this->gl_config.accum_blue_size +
this->gl_config.accum_alpha_size) > 0 ) {
attr[i++] = NSOpenGLPFAAccumSize;
attr[i++] = this->gl_config.accum_red_size + this->gl_config.accum_green_size + this->gl_config.accum_blue_size + this->gl_config.accum_alpha_size;
}

if ( this->gl_config.multisamplebuffers != 0 ) {
attr[i++] = NSOpenGLPFASampleBuffers;
attr[i++] = this->gl_config.multisamplebuffers;

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