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swrast: use different temp array in _swrast_get_dest_rgba()

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When using multiple color drawbuffers with blending/logicop/masking we
were overwriting color values which we still needed.
This commit is contained in:
Brian Paul
2009-12-31 08:44:24 -07:00
parent 6e0584932b
commit 195e7657e2
1 changed files with 3 additions and 7 deletions
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10
src/mesa/swrast/s_span.c
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@@ -1766,9 +1766,7 @@ _swrast_get_row(GLcontext *ctx, struct gl_renderbuffer *rb,
/**
* Get RGBA pixels from the given renderbuffer. Put the pixel colors into
* the span's specular color arrays. The specular color arrays should no
* longer be needed by time this function is called.
* Get RGBA pixels from the given renderbuffer.
* Used by blending, logicop and masking functions.
* \return pointer to the colors we read.
*/
@@ -1779,10 +1777,8 @@ _swrast_get_dest_rgba(GLcontext *ctx, struct gl_renderbuffer *rb,
const GLuint pixelSize = RGBA_PIXEL_SIZE(span->array->ChanType);
void *rbPixels;
/*
* Point rbPixels to a temporary space (use specular color arrays).
*/
rbPixels = span->array->attribs[FRAG_ATTRIB_COL1];
/* Point rbPixels to a temporary space */
rbPixels = span->array->attribs[FRAG_ATTRIB_MAX - 1];
/* Get destination values from renderbuffer */
if (span->arrayMask & SPAN_XY) {