X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fswrast%2Fs_masking.c;h=c10bf1ac2516e030ae66f937fde57865f0011929;hb=77630841da53ec90415aee37fcc0ec4cf76941e1;hp=2b761426df67513838a813599a8b6c9f2e662e35;hpb=45bc887da226403f2c41077e40ca38b6f60f1359;p=mesa.git diff --git a/src/mesa/swrast/s_masking.c b/src/mesa/swrast/s_masking.c index 2b761426df6..c10bf1ac251 100644 --- a/src/mesa/swrast/s_masking.c +++ b/src/mesa/swrast/s_masking.c @@ -1,10 +1,7 @@ -/* $Id: s_masking.c,v 1.9 2003/03/25 02:23:47 brianp Exp $ */ - /* * Mesa 3-D graphics library - * Version: 4.1 * - * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. + * 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"), @@ -19,9 +16,10 @@ * 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. + * THE AUTHORS OR COPYRIGHT HOLDERS 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. */ @@ -30,163 +28,75 @@ */ -#include "glheader.h" -#include "enums.h" -#include "macros.h" +#include "main/glheader.h" +#include "main/macros.h" -#include "s_alphabuf.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, const struct sw_span *span, - GLchan rgba[][4] ) +_swrast_mask_rgba_span(struct gl_context *ctx, struct gl_renderbuffer *rb, + SWspan *span, GLuint buf) { - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLchan dest[MAX_WIDTH][4]; -#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; - - 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) { - _swrast_read_alpha_pixels(ctx, n, span->array->x, span->array->y, - dest, span->array->mask); + void *rbPixels; + + assert(n < SWRAST_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) { + GLuint srcMask; + memcpy(&srcMask, ctx->Color.ColorMask[buf], sizeof(srcMask)); + 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 { - _swrast_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 - 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 a span of RGBA pixels. - */ -void -_swrast_mask_rgba_array( GLcontext *ctx, - 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, ctx->DrawBuffer, 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, 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 -} - - - -void -_swrast_mask_index_span( GLcontext *ctx, const struct sw_span *span, - GLuint index[] ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - const GLuint msrc = ctx->Color.IndexMask; - const GLuint mdest = ~msrc; - GLuint fbindexes[MAX_WIDTH]; - GLuint i; - - ASSERT(span->arrayMask & SPAN_INDEX); - ASSERT(span->end < MAX_WIDTH); - - if (span->arrayMask & SPAN_XY) { - - (*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 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 { - _swrast_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); + /* 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[VARYING_SLOT_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); } } } - - - -/* - * Apply glIndexMask to a span of CI pixels. - */ -void -_swrast_mask_index_array( GLcontext *ctx, - GLuint n, GLint x, GLint y, GLuint index[] ) -{ - GLuint i; - GLuint fbindexes[MAX_WIDTH]; - GLuint msrc, mdest; - - _swrast_read_index_span( ctx, ctx->DrawBuffer, n, x, y, fbindexes ); - - msrc = ctx->Color.IndexMask; - mdest = ~msrc; - - for (i=0;i