-void
-_swrast_mask_rgba_array(GLcontext *ctx, struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y, GLchan rgba[][4])
-{
- GLchan dest[MAX_WIDTH][4];
- GLuint i;
-
-#if CHAN_BITS == 8
-
- GLuint srcMask = *((GLuint*)ctx->Color.ColorMask);
- GLuint dstMask = ~srcMask;
- GLuint *rgba32 = (GLuint *) rgba;
- GLuint *dest32 = (GLuint *) dest;
-
- _swrast_read_rgba_span( ctx, rb, n, x, y, dest );
- for (i = 0; i < n; i++) {
- rgba32[i] = (rgba32[i] & srcMask) | (dest32[i] & dstMask);
- }
-
-#else
-
- const GLint rMask = ctx->Color.ColorMask[RCOMP];
- const GLint gMask = ctx->Color.ColorMask[GCOMP];
- const GLint bMask = ctx->Color.ColorMask[BCOMP];
- const GLint aMask = ctx->Color.ColorMask[ACOMP];
-
- _swrast_read_rgba_span( ctx, rb, n, x, y, dest );
- for (i = 0; i < n; i++) {
- if (!rMask) rgba[i][RCOMP] = dest[i][RCOMP];
- if (!gMask) rgba[i][GCOMP] = dest[i][GCOMP];
- if (!bMask) rgba[i][BCOMP] = dest[i][BCOMP];
- if (!aMask) rgba[i][ACOMP] = dest[i][ACOMP];
- }
-
-#endif
-}
-
-
-