const GLuint bMask = ctx->Color.ColorMask[BCOMP] ? ~0x0 : 0x0;
const GLuint aMask = ctx->Color.ColorMask[ACOMP] ? ~0x0 : 0x0;
const GLuint (*dst)[4] = (const GLuint (*)[4]) rbPixels;
- GLuint (*src)[4] = (GLuint (*)[4]) span->array->color.sz4.rgba;
+ GLuint (*src)[4] = (GLuint (*)[4]) span->array->attribs[FRAG_ATTRIB_COL0];
GLuint i;
for (i = 0; i < n; i++) {
src[i][RCOMP] = (src[i][RCOMP] & rMask) | (dst[i][RCOMP] & ~rMask);