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-rw-r--r--mesalib/src/mesa/swrast/s_masking.c205
1 files changed, 102 insertions, 103 deletions
diff --git a/mesalib/src/mesa/swrast/s_masking.c b/mesalib/src/mesa/swrast/s_masking.c
index 6ee29d4b3..2d962ebc5 100644
--- a/mesalib/src/mesa/swrast/s_masking.c
+++ b/mesalib/src/mesa/swrast/s_masking.c
@@ -1,103 +1,102 @@
-/*
- * Mesa 3-D graphics library
- * Version: 6.5.2
- *
- * Copyright (C) 1999-2006 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"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/*
- * Implement the effect of glColorMask and glIndexMask in software.
- */
-
-
-#include "main/glheader.h"
-#include "main/macros.h"
-
-#include "s_context.h"
-#include "s_masking.h"
-#include "s_span.h"
-
-
-/**
- * Apply the color mask to a span of rgba values.
- */
-void
-_swrast_mask_rgba_span(struct gl_context *ctx, struct gl_renderbuffer *rb,
- SWspan *span, GLuint buf)
-{
- const GLuint n = span->end;
- void *rbPixels;
-
- ASSERT(n < MAX_WIDTH);
- ASSERT(span->arrayMask & SPAN_RGBA);
- ASSERT(rb->DataType == span->array->ChanType);
-
- rbPixels = _swrast_get_dest_rgba(ctx, rb, span);
-
- /*
- * Do component masking.
- * Note that we're not using span->array->mask[] here. We could...
- */
- if (span->array->ChanType == GL_UNSIGNED_BYTE) {
- /* treat 4xGLubyte as 1xGLuint */
- const GLuint srcMask = *((GLuint *) ctx->Color.ColorMask[buf]);
- const GLuint dstMask = ~srcMask;
- const GLuint *dst = (const GLuint *) rbPixels;
- GLuint *src = (GLuint *) span->array->rgba8;
- GLuint i;
- for (i = 0; i < n; i++) {
- src[i] = (src[i] & srcMask) | (dst[i] & dstMask);
- }
- }
- else if (span->array->ChanType == GL_UNSIGNED_SHORT) {
- /* 2-byte components */
- /* XXX try to use 64-bit arithmetic someday */
- const GLushort rMask = ctx->Color.ColorMask[buf][RCOMP] ? 0xffff : 0x0;
- const GLushort gMask = ctx->Color.ColorMask[buf][GCOMP] ? 0xffff : 0x0;
- const GLushort bMask = ctx->Color.ColorMask[buf][BCOMP] ? 0xffff : 0x0;
- const GLushort aMask = ctx->Color.ColorMask[buf][ACOMP] ? 0xffff : 0x0;
- const GLushort (*dst)[4] = (const GLushort (*)[4]) rbPixels;
- GLushort (*src)[4] = span->array->rgba16;
- GLuint i;
- for (i = 0; i < n; i++) {
- src[i][RCOMP] = (src[i][RCOMP] & rMask) | (dst[i][RCOMP] & ~rMask);
- src[i][GCOMP] = (src[i][GCOMP] & gMask) | (dst[i][GCOMP] & ~gMask);
- src[i][BCOMP] = (src[i][BCOMP] & bMask) | (dst[i][BCOMP] & ~bMask);
- src[i][ACOMP] = (src[i][ACOMP] & aMask) | (dst[i][ACOMP] & ~aMask);
- }
- }
- else {
- /* 4-byte components */
- const GLuint rMask = ctx->Color.ColorMask[buf][RCOMP] ? ~0x0 : 0x0;
- const GLuint gMask = ctx->Color.ColorMask[buf][GCOMP] ? ~0x0 : 0x0;
- const GLuint bMask = ctx->Color.ColorMask[buf][BCOMP] ? ~0x0 : 0x0;
- const GLuint aMask = ctx->Color.ColorMask[buf][ACOMP] ? ~0x0 : 0x0;
- const GLuint (*dst)[4] = (const GLuint (*)[4]) rbPixels;
- 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);
- src[i][GCOMP] = (src[i][GCOMP] & gMask) | (dst[i][GCOMP] & ~gMask);
- src[i][BCOMP] = (src[i][BCOMP] & bMask) | (dst[i][BCOMP] & ~bMask);
- src[i][ACOMP] = (src[i][ACOMP] & aMask) | (dst[i][ACOMP] & ~aMask);
- }
- }
-}
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.2
+ *
+ * Copyright (C) 1999-2006 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"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/*
+ * Implement the effect of glColorMask and glIndexMask in software.
+ */
+
+
+#include "main/glheader.h"
+#include "main/macros.h"
+
+#include "s_context.h"
+#include "s_masking.h"
+#include "s_span.h"
+
+
+/**
+ * Apply the color mask to a span of rgba values.
+ */
+void
+_swrast_mask_rgba_span(struct gl_context *ctx, struct gl_renderbuffer *rb,
+ SWspan *span, GLuint buf)
+{
+ const GLuint n = span->end;
+ void *rbPixels;
+
+ ASSERT(n < MAX_WIDTH);
+ ASSERT(span->arrayMask & SPAN_RGBA);
+
+ rbPixels = _swrast_get_dest_rgba(ctx, rb, span);
+
+ /*
+ * Do component masking.
+ * Note that we're not using span->array->mask[] here. We could...
+ */
+ if (span->array->ChanType == GL_UNSIGNED_BYTE) {
+ /* treat 4xGLubyte as 1xGLuint */
+ const GLuint srcMask = *((GLuint *) ctx->Color.ColorMask[buf]);
+ const GLuint dstMask = ~srcMask;
+ const GLuint *dst = (const GLuint *) rbPixels;
+ GLuint *src = (GLuint *) span->array->rgba8;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ src[i] = (src[i] & srcMask) | (dst[i] & dstMask);
+ }
+ }
+ else if (span->array->ChanType == GL_UNSIGNED_SHORT) {
+ /* 2-byte components */
+ /* XXX try to use 64-bit arithmetic someday */
+ const GLushort rMask = ctx->Color.ColorMask[buf][RCOMP] ? 0xffff : 0x0;
+ const GLushort gMask = ctx->Color.ColorMask[buf][GCOMP] ? 0xffff : 0x0;
+ const GLushort bMask = ctx->Color.ColorMask[buf][BCOMP] ? 0xffff : 0x0;
+ const GLushort aMask = ctx->Color.ColorMask[buf][ACOMP] ? 0xffff : 0x0;
+ const GLushort (*dst)[4] = (const GLushort (*)[4]) rbPixels;
+ GLushort (*src)[4] = span->array->rgba16;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ src[i][RCOMP] = (src[i][RCOMP] & rMask) | (dst[i][RCOMP] & ~rMask);
+ src[i][GCOMP] = (src[i][GCOMP] & gMask) | (dst[i][GCOMP] & ~gMask);
+ src[i][BCOMP] = (src[i][BCOMP] & bMask) | (dst[i][BCOMP] & ~bMask);
+ src[i][ACOMP] = (src[i][ACOMP] & aMask) | (dst[i][ACOMP] & ~aMask);
+ }
+ }
+ else {
+ /* 4-byte components */
+ const GLuint rMask = ctx->Color.ColorMask[buf][RCOMP] ? ~0x0 : 0x0;
+ const GLuint gMask = ctx->Color.ColorMask[buf][GCOMP] ? ~0x0 : 0x0;
+ const GLuint bMask = ctx->Color.ColorMask[buf][BCOMP] ? ~0x0 : 0x0;
+ const GLuint aMask = ctx->Color.ColorMask[buf][ACOMP] ? ~0x0 : 0x0;
+ const GLuint (*dst)[4] = (const GLuint (*)[4]) rbPixels;
+ 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);
+ src[i][GCOMP] = (src[i][GCOMP] & gMask) | (dst[i][GCOMP] & ~gMask);
+ src[i][BCOMP] = (src[i][BCOMP] & bMask) | (dst[i][BCOMP] & ~bMask);
+ src[i][ACOMP] = (src[i][ACOMP] & aMask) | (dst[i][ACOMP] & ~aMask);
+ }
+ }
+}
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