-/* $Id: s_masking.c,v 1.4 2001/03/12 00:48:42 gareth Exp $ */
+/* $Id: s_masking.c,v 1.8 2002/08/07 00:45:07 brianp Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 3.5
+ * Version: 4.1
*
- * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
#include "s_alphabuf.h"
#include "s_context.h"
#include "s_masking.h"
-#include "s_pb.h"
#include "s_span.h"
-/*
- * Apply glColorMask to a span of RGBA pixels.
- */
+
void
-_mesa_mask_rgba_span( GLcontext *ctx,
- GLuint n, GLint x, GLint y, GLchan rgba[][4] )
+_mesa_mask_rgba_span( GLcontext *ctx, const struct sw_span *span,
+ GLchan rgba[][4] )
{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
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;
+#else
+ const GLboolean rMask = ctx->Color.ColorMask[RCOMP];
+ const GLboolean gMask = ctx->Color.ColorMask[GCOMP];
+ const GLboolean bMask = ctx->Color.ColorMask[BCOMP];
+ const GLboolean aMask = ctx->Color.ColorMask[ACOMP];
+#endif
+ const GLuint n = span->end;
+ GLuint i;
- _mesa_read_rgba_span( ctx, ctx->DrawBuffer, n, x, y, dest );
+ ASSERT(n < MAX_WIDTH);
+ ASSERT(span->arrayMask & SPAN_RGBA);
+
+ if (span->arrayMask & SPAN_XY) {
+ (*swrast->Driver.ReadRGBAPixels)(ctx, n, span->array->x, span->array->y,
+ dest, span->array->mask);
+ if (SWRAST_CONTEXT(ctx)->_RasterMask & ALPHABUF_BIT) {
+ _mesa_read_alpha_pixels(ctx, n, span->array->x, span->array->y,
+ dest, span->array->mask);
+ }
+ }
+ else {
+ _mesa_read_rgba_span(ctx, ctx->DrawBuffer, n, span->x, span->y, dest);
+ }
+
+#if CHAN_BITS == 8
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];
-
- _mesa_read_rgba_span( ctx, ctx->DrawBuffer, 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
}
+
/*
- * Apply glColorMask to an array of RGBA pixels.
+ * Apply glColorMask to a span of RGBA pixels.
*/
void
-_mesa_mask_rgba_pixels( GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- GLchan rgba[][4], const GLubyte mask[] )
+_mesa_mask_rgba_array( GLcontext *ctx,
+ GLuint n, GLint x, GLint y, GLchan rgba[][4] )
{
- GLchan dest[PB_SIZE][4];
+ GLchan dest[MAX_WIDTH][4];
GLuint i;
#if CHAN_BITS == 8
GLuint *rgba32 = (GLuint *) rgba;
GLuint *dest32 = (GLuint *) dest;
- (*ctx->Driver.ReadRGBAPixels)( ctx, n, x, y, dest, mask );
- if (SWRAST_CONTEXT(ctx)->_RasterMask & ALPHABUF_BIT) {
- _mesa_read_alpha_pixels( ctx, n, x, y, dest, mask );
- }
-
- for (i=0; i<n; i++) {
+ _mesa_read_rgba_span( ctx, ctx->DrawBuffer, n, x, y, dest );
+ for (i = 0; i < n; i++) {
rgba32[i] = (rgba32[i] & srcMask) | (dest32[i] & dstMask);
}
const GLint bMask = ctx->Color.ColorMask[BCOMP];
const GLint aMask = ctx->Color.ColorMask[ACOMP];
- (*ctx->Driver.ReadRGBAPixels)( ctx, n, x, y, dest, mask );
- if (SWRAST_CONTEXT(ctx)->_RasterMask & ALPHABUF_BIT) {
- _mesa_read_alpha_pixels( ctx, n, x, y, dest, mask );
- }
-
+ _mesa_read_rgba_span( ctx, ctx->DrawBuffer, 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];
-/*
- * Apply glIndexMask to a span of CI pixels.
- */
void
-_mesa_mask_index_span( GLcontext *ctx,
- GLuint n, GLint x, GLint y, GLuint index[] )
+_mesa_mask_index_span( GLcontext *ctx, const struct sw_span *span,
+ GLuint index[] )
{
- GLuint i;
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ const GLuint msrc = ctx->Color.IndexMask;
+ const GLuint mdest = ~msrc;
GLuint fbindexes[MAX_WIDTH];
- GLuint msrc, mdest;
+ GLuint i;
- _mesa_read_index_span( ctx, ctx->DrawBuffer, n, x, y, fbindexes );
+ ASSERT(span->arrayMask & SPAN_INDEX);
+ ASSERT(span->end < MAX_WIDTH);
- msrc = ctx->Color.IndexMask;
- mdest = ~msrc;
+ if (span->arrayMask & SPAN_XY) {
- for (i=0;i<n;i++) {
- index[i] = (index[i] & msrc) | (fbindexes[i] & mdest);
+ (*swrast->Driver.ReadCI32Pixels)(ctx, span->end, span->array->x,
+ span->array->y, fbindexes,
+ span->array->mask);
+
+ for (i = 0; i < span->end; i++) {
+ index[i] = (index[i] & msrc) | (fbindexes[i] & mdest);
+ }
+ }
+ else {
+ _mesa_read_index_span(ctx, ctx->DrawBuffer, span->end, span->x, span->y,
+ fbindexes );
+
+ for (i = 0; i < span->end; i++) {
+ index[i] = (index[i] & msrc) | (fbindexes[i] & mdest);
+ }
}
}
/*
- * Apply glIndexMask to an array of CI pixels.
+ * Apply glIndexMask to a span of CI pixels.
*/
void
-_mesa_mask_index_pixels( GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- GLuint index[], const GLubyte mask[] )
+_mesa_mask_index_array( GLcontext *ctx,
+ GLuint n, GLint x, GLint y, GLuint index[] )
{
GLuint i;
- GLuint fbindexes[PB_SIZE];
+ GLuint fbindexes[MAX_WIDTH];
GLuint msrc, mdest;
- (*ctx->Driver.ReadCI32Pixels)( ctx, n, x, y, fbindexes, mask );
+ _mesa_read_index_span( ctx, ctx->DrawBuffer, n, x, y, fbindexes );
msrc = ctx->Color.IndexMask;
mdest = ~msrc;
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