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[intel] Allow attIndex to be negative to avoid defeating the >= 0 check.

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Otherwise, we would go wildly out of bounds if passed -1 (no renderbuffer), such
as while doing LOCK_HARDWARE with glDrawBuffer(GL_NONE).
This commit is contained in:
Eric Anholt 2008-02-15 13:48:11 -08:00
parent eed5e6f40f
commit c741d287ec
2 changed files with 2 additions and 2 deletions
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2
src/mesa/drivers/dri/intel/intel_fbo.c
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@ -69,7 +69,7 @@ intel_renderbuffer(struct gl_renderbuffer *rb)
struct intel_renderbuffer * struct intel_renderbuffer *
intel_get_renderbuffer(struct gl_framebuffer *fb, GLuint attIndex) intel_get_renderbuffer(struct gl_framebuffer *fb, int attIndex)
{ {
if (attIndex >= 0) if (attIndex >= 0)
return intel_renderbuffer(fb->Attachment[attIndex].Renderbuffer); return intel_renderbuffer(fb->Attachment[attIndex].Renderbuffer);

2
src/mesa/drivers/dri/intel/intel_fbo.h
View file

@ -98,7 +98,7 @@ extern void intel_fbo_init(struct intel_context *intel);
/* XXX make inline or macro */ /* XXX make inline or macro */
extern struct intel_renderbuffer *intel_get_renderbuffer(struct gl_framebuffer extern struct intel_renderbuffer *intel_get_renderbuffer(struct gl_framebuffer
*fb, *fb,
GLuint attIndex); int attIndex);
extern void intel_flip_renderbuffers(struct intel_framebuffer *intel_fb); extern void intel_flip_renderbuffers(struct intel_framebuffer *intel_fb);