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mesa: added ctx->Driver.ValidateFramebuffer() callback

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Called from the _mesa_test_framebuffer_completeness() function to give the
driver the chance to make a framebuffer as incomplete if it doesn't meet
some specific hardware restriction.
This commit is contained in:
Brian Paul
2009-01-22 15:13:18 -07:00
parent 1bc59bf4f8
commit 3528f69ce4
2 changed files with 20 additions and 8 deletions
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26
src/mesa/main/fbobject.c
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@@ -414,6 +414,8 @@ fbo_incomplete(const char *msg, int index)
/**
* Test if the given framebuffer object is complete and update its
* Status field with the results.
* Calls the ctx->Driver.ValidateFramebuffer() function to allow the
* driver to make hardware-specific validation/completeness checks.
* Also update the framebuffer's Width and Height fields if the
* framebuffer is complete.
*/
@@ -566,15 +568,23 @@ _mesa_test_framebuffer_completeness(GLcontext *ctx, struct gl_framebuffer *fb)
return;
}
/*
* If we get here, the framebuffer is complete!
* Note that if ARB_framebuffer_object is supported and the attached
* renderbuffers/textures are different sizes, the framebuffer width/height
* will be set to the smallest width/height.
*/
/* Provisionally set status = COMPLETE ... */
fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT;
fb->Width = minWidth;
fb->Height = minHeight;
/* ... but the driver may say the FB is incomplete: */
if (ctx->Driver.ValidateFramebuffer) {
ctx->Driver.ValidateFramebuffer(ctx, fb);
}
if (fb->_Status == GL_FRAMEBUFFER_COMPLETE_EXT) {
/*
* Note that if ARB_framebuffer_object is supported and the attached
* renderbuffers/textures are different sizes, the framebuffer
* width/height will be set to the smallest width/height.
*/
fb->Width = minWidth;
fb->Height = minHeight;
}
}