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author | marha <marha@users.sourceforge.net> | 2010-12-28 16:10:20 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2010-12-28 16:10:20 +0000 |
commit | 807c6931fe683fd844ceec1b023232181e6aae03 (patch) | |
tree | 1a131ed95fe2200d0ad33da8f7755a7ed2364adc /mesalib/src/mesa/swrast/s_masking.c | |
parent | 973099dda7e49e5abe29819a7124b3b1e7bd8b92 (diff) | |
download | vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.tar.gz vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.tar.bz2 vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.zip |
xserver and mesa git update 28-12-2010
Diffstat (limited to 'mesalib/src/mesa/swrast/s_masking.c')
-rw-r--r-- | mesalib/src/mesa/swrast/s_masking.c | 206 |
1 files changed, 103 insertions, 103 deletions
diff --git a/mesalib/src/mesa/swrast/s_masking.c b/mesalib/src/mesa/swrast/s_masking.c index e38d90f19..6ee29d4b3 100644 --- a/mesalib/src/mesa/swrast/s_masking.c +++ b/mesalib/src/mesa/swrast/s_masking.c @@ -1,103 +1,103 @@ -/* - * 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(GLcontext *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);
+ 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);
+ }
+ }
+}
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