X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fpixel.c;h=57ae9c721a823e42b0aefac04f045eca947773fc;hb=06cd826fcba7bde168a85444a95de589ff5b6f2e;hp=ce4be7eadc86a86e226a9cf7e88e8a567c6db64e;hpb=6dc85575000127630489b407c50a4b3ea87c9acb;p=mesa.git diff --git a/src/mesa/main/pixel.c b/src/mesa/main/pixel.c index ce4be7eadc8..57ae9c721a8 100644 --- a/src/mesa/main/pixel.c +++ b/src/mesa/main/pixel.c @@ -1,9 +1,8 @@ - /* * Mesa 3-D graphics library - * Version: 4.1 + * Version: 7.1 * - * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2008 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"), @@ -23,10 +22,17 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +/** + * \file pixel.c + * Pixel transfer functions (glPixelZoom, glPixelMap, glPixelTransfer) + */ + #include "glheader.h" -#include "imports.h" +#include "bufferobj.h" #include "colormac.h" #include "context.h" +#include "image.h" #include "macros.h" #include "pixel.h" #include "mtypes.h" @@ -36,9 +42,7 @@ /***** glPixelZoom *****/ /**********************************************************************/ - - -void +void GLAPIENTRY _mesa_PixelZoom( GLfloat xfactor, GLfloat yfactor ) { GET_CURRENT_CONTEXT(ctx); @@ -55,212 +59,90 @@ _mesa_PixelZoom( GLfloat xfactor, GLfloat yfactor ) /**********************************************************************/ -/***** glPixelStore *****/ +/***** glPixelMap *****/ /**********************************************************************/ - -void -_mesa_PixelStorei( GLenum pname, GLint param ) +/** + * Return pointer to a pixelmap by name. + */ +static struct gl_pixelmap * +get_pixelmap(GLcontext *ctx, GLenum map) { - /* NOTE: this call can't be compiled into the display list */ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - switch (pname) { - case GL_PACK_SWAP_BYTES: - if (param == (GLint)ctx->Pack.SwapBytes) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Pack.SwapBytes = param ? GL_TRUE : GL_FALSE; - break; - case GL_PACK_LSB_FIRST: - if (param == (GLint)ctx->Pack.LsbFirst) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Pack.LsbFirst = param ? GL_TRUE : GL_FALSE; - break; - case GL_PACK_ROW_LENGTH: - if (param<0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" ); - return; - } - if (ctx->Pack.RowLength == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Pack.RowLength = param; - break; - case GL_PACK_IMAGE_HEIGHT: - if (param<0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" ); - return; - } - if (ctx->Pack.ImageHeight == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Pack.ImageHeight = param; - break; - case GL_PACK_SKIP_PIXELS: - if (param<0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" ); - return; - } - if (ctx->Pack.SkipPixels == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Pack.SkipPixels = param; - break; - case GL_PACK_SKIP_ROWS: - if (param<0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" ); - return; - } - if (ctx->Pack.SkipRows == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Pack.SkipRows = param; - break; - case GL_PACK_SKIP_IMAGES: - if (param<0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" ); - return; - } - if (ctx->Pack.SkipImages == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Pack.SkipImages = param; - break; - case GL_PACK_ALIGNMENT: - if (param!=1 && param!=2 && param!=4 && param!=8) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" ); - return; - } - if (ctx->Pack.Alignment == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Pack.Alignment = param; - break; - case GL_PACK_INVERT_MESA: - if (!ctx->Extensions.MESA_pack_invert) { - _mesa_error( ctx, GL_INVALID_ENUM, "glPixelstore(pname)" ); - return; - } - if (ctx->Pack.Invert == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Pack.Invert = param; - break; - - case GL_UNPACK_SWAP_BYTES: - if (param == (GLint)ctx->Unpack.SwapBytes) - return; - if ((GLint)ctx->Unpack.SwapBytes == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Unpack.SwapBytes = param ? GL_TRUE : GL_FALSE; - break; - case GL_UNPACK_LSB_FIRST: - if (param == (GLint)ctx->Unpack.LsbFirst) - return; - if ((GLint)ctx->Unpack.LsbFirst == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Unpack.LsbFirst = param ? GL_TRUE : GL_FALSE; - break; - case GL_UNPACK_ROW_LENGTH: - if (param<0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" ); - return; - } - if (ctx->Unpack.RowLength == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Unpack.RowLength = param; - break; - case GL_UNPACK_IMAGE_HEIGHT: - if (param<0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" ); - return; - } - if (ctx->Unpack.ImageHeight == param) - return; - - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Unpack.ImageHeight = param; - break; - case GL_UNPACK_SKIP_PIXELS: - if (param<0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" ); - return; - } - if (ctx->Unpack.SkipPixels == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Unpack.SkipPixels = param; - break; - case GL_UNPACK_SKIP_ROWS: - if (param<0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" ); - return; - } - if (ctx->Unpack.SkipRows == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Unpack.SkipRows = param; - break; - case GL_UNPACK_SKIP_IMAGES: - if (param < 0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" ); - return; - } - if (ctx->Unpack.SkipImages == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Unpack.SkipImages = param; - break; - case GL_UNPACK_ALIGNMENT: - if (param!=1 && param!=2 && param!=4 && param!=8) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore" ); - return; - } - if (ctx->Unpack.Alignment == param) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Unpack.Alignment = param; - break; - case GL_UNPACK_CLIENT_STORAGE_APPLE: - if (param == (GLint)ctx->Unpack.ClientStorage) - return; - FLUSH_VERTICES(ctx, _NEW_PACKUNPACK); - ctx->Unpack.ClientStorage = param ? GL_TRUE : GL_FALSE; - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glPixelStore" ); - return; + switch (map) { + case GL_PIXEL_MAP_I_TO_I: + return &ctx->PixelMaps.ItoI; + case GL_PIXEL_MAP_S_TO_S: + return &ctx->PixelMaps.StoS; + case GL_PIXEL_MAP_I_TO_R: + return &ctx->PixelMaps.ItoR; + case GL_PIXEL_MAP_I_TO_G: + return &ctx->PixelMaps.ItoG; + case GL_PIXEL_MAP_I_TO_B: + return &ctx->PixelMaps.ItoB; + case GL_PIXEL_MAP_I_TO_A: + return &ctx->PixelMaps.ItoA; + case GL_PIXEL_MAP_R_TO_R: + return &ctx->PixelMaps.RtoR; + case GL_PIXEL_MAP_G_TO_G: + return &ctx->PixelMaps.GtoG; + case GL_PIXEL_MAP_B_TO_B: + return &ctx->PixelMaps.BtoB; + case GL_PIXEL_MAP_A_TO_A: + return &ctx->PixelMaps.AtoA; + default: + return NULL; } } -void -_mesa_PixelStoref( GLenum pname, GLfloat param ) +/** + * Helper routine used by the other _mesa_PixelMap() functions. + */ +static void +store_pixelmap(GLcontext *ctx, GLenum map, GLsizei mapsize, + const GLfloat *values) { - _mesa_PixelStorei( pname, (GLint) param ); -} - - - -/**********************************************************************/ -/***** glPixelMap *****/ -/**********************************************************************/ + GLint i; + struct gl_pixelmap *pm = get_pixelmap(ctx, map); + if (!pm) { + _mesa_error(ctx, GL_INVALID_ENUM, "glPixelMap(map)"); + return; + } + switch (map) { + case GL_PIXEL_MAP_S_TO_S: + /* special case */ + ctx->PixelMaps.StoS.Size = mapsize; + for (i = 0; i < mapsize; i++) { + ctx->PixelMaps.StoS.Map[i] = (GLfloat)IROUND(values[i]); + } + break; + case GL_PIXEL_MAP_I_TO_I: + /* special case */ + ctx->PixelMaps.ItoI.Size = mapsize; + for (i = 0; i < mapsize; i++) { + ctx->PixelMaps.ItoI.Map[i] = values[i]; + } + break; + default: + /* general case */ + pm->Size = mapsize; + for (i = 0; i < mapsize; i++) { + GLfloat val = CLAMP(values[i], 0.0F, 1.0F); + pm->Map[i] = val; + pm->Map8[i] = (GLint) (val * 255.0F); + } + } +} -void -_mesa_PixelMapfv( GLenum map, GLint mapsize, const GLfloat *values ) +void GLAPIENTRY +_mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values ) { - GLint i; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); + /* XXX someday, test against ctx->Const.MaxPixelMapTableSize */ if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) { _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" ); return; @@ -268,7 +150,7 @@ _mesa_PixelMapfv( GLenum map, GLint mapsize, const GLfloat *values ) if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) { /* test that mapsize is a power of two */ - if (_mesa_bitcount((GLuint) mapsize) != 1) { + if (!_mesa_is_pow_two(mapsize)) { _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" ); return; } @@ -276,292 +158,379 @@ _mesa_PixelMapfv( GLenum map, GLint mapsize, const GLfloat *values ) FLUSH_VERTICES(ctx, _NEW_PIXEL); - switch (map) { - case GL_PIXEL_MAP_S_TO_S: - ctx->Pixel.MapStoSsize = mapsize; - for (i=0;iPixel.MapStoS[i] = (GLint) values[i]; - } - break; - case GL_PIXEL_MAP_I_TO_I: - ctx->Pixel.MapItoIsize = mapsize; - for (i=0;iPixel.MapItoI[i] = (GLint) values[i]; - } - break; - case GL_PIXEL_MAP_I_TO_R: - ctx->Pixel.MapItoRsize = mapsize; - for (i=0;iPixel.MapItoR[i] = val; - ctx->Pixel.MapItoR8[i] = (GLint) (val * 255.0F); - } - break; - case GL_PIXEL_MAP_I_TO_G: - ctx->Pixel.MapItoGsize = mapsize; - for (i=0;iPixel.MapItoG[i] = val; - ctx->Pixel.MapItoG8[i] = (GLint) (val * 255.0F); - } - break; - case GL_PIXEL_MAP_I_TO_B: - ctx->Pixel.MapItoBsize = mapsize; - for (i=0;iPixel.MapItoB[i] = val; - ctx->Pixel.MapItoB8[i] = (GLint) (val * 255.0F); - } - break; - case GL_PIXEL_MAP_I_TO_A: - ctx->Pixel.MapItoAsize = mapsize; - for (i=0;iPixel.MapItoA[i] = val; - ctx->Pixel.MapItoA8[i] = (GLint) (val * 255.0F); - } - break; - case GL_PIXEL_MAP_R_TO_R: - ctx->Pixel.MapRtoRsize = mapsize; - for (i=0;iPixel.MapRtoR[i] = CLAMP( values[i], 0.0F, 1.0F ); - } - break; - case GL_PIXEL_MAP_G_TO_G: - ctx->Pixel.MapGtoGsize = mapsize; - for (i=0;iPixel.MapGtoG[i] = CLAMP( values[i], 0.0F, 1.0F ); - } - break; - case GL_PIXEL_MAP_B_TO_B: - ctx->Pixel.MapBtoBsize = mapsize; - for (i=0;iPixel.MapBtoB[i] = CLAMP( values[i], 0.0F, 1.0F ); - } - break; - case GL_PIXEL_MAP_A_TO_A: - ctx->Pixel.MapAtoAsize = mapsize; - for (i=0;iPixel.MapAtoA[i] = CLAMP( values[i], 0.0F, 1.0F ); - } - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glPixelMapfv(map)" ); + if (ctx->Unpack.BufferObj->Name) { + /* unpack pixelmap from PBO */ + GLubyte *buf; + /* Note, need to use DefaultPacking and Unpack's buffer object */ + ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj; + if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1, + GL_INTENSITY, GL_FLOAT, values)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPixelMapfv(invalid PBO access)"); + return; + } + /* restore */ + ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj; + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + GL_READ_ONLY_ARB, + ctx->Unpack.BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPixelMapfv(PBO is mapped)"); + return; + } + values = (const GLfloat *) ADD_POINTERS(buf, values); + } + else if (!values) { + return; } -} + store_pixelmap(ctx, map, mapsize, values); + if (ctx->Unpack.BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + ctx->Unpack.BufferObj); + } +} -void -_mesa_PixelMapuiv(GLenum map, GLint mapsize, const GLuint *values ) + +void GLAPIENTRY +_mesa_PixelMapuiv(GLenum map, GLsizei mapsize, const GLuint *values ) { - const GLint n = MIN2(mapsize, MAX_PIXEL_MAP_TABLE); GLfloat fvalues[MAX_PIXEL_MAP_TABLE]; - GLint i; - if (map==GL_PIXEL_MAP_I_TO_I || map==GL_PIXEL_MAP_S_TO_S) { - for (i=0;i MAX_PIXEL_MAP_TABLE) { + _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" ); + return; + } + + if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) { + /* test that mapsize is a power of two */ + if (!_mesa_is_pow_two(mapsize)) { + _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" ); + return; + } + } + + FLUSH_VERTICES(ctx, _NEW_PIXEL); + + if (ctx->Unpack.BufferObj->Name) { + /* unpack pixelmap from PBO */ + GLubyte *buf; + /* Note, need to use DefaultPacking and Unpack's buffer object */ + ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj; + if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1, + GL_INTENSITY, GL_UNSIGNED_INT, values)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPixelMapuiv(invalid PBO access)"); + return; + } + /* restore */ + ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj; + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + GL_READ_ONLY_ARB, + ctx->Unpack.BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPixelMapuiv(PBO is mapped)"); + return; + } + values = (const GLuint *) ADD_POINTERS(buf, values); + } + else if (!values) { + return; + } + + /* convert to floats */ + if (map == GL_PIXEL_MAP_I_TO_I || map == GL_PIXEL_MAP_S_TO_S) { + GLint i; + for (i = 0; i < mapsize; i++) { fvalues[i] = (GLfloat) values[i]; } } else { - for (i=0;iUnpack.BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + ctx->Unpack.BufferObj); + } + store_pixelmap(ctx, map, mapsize, fvalues); +} -void -_mesa_PixelMapusv(GLenum map, GLint mapsize, const GLushort *values ) + +void GLAPIENTRY +_mesa_PixelMapusv(GLenum map, GLsizei mapsize, const GLushort *values ) { - const GLint n = MIN2(mapsize, MAX_PIXEL_MAP_TABLE); GLfloat fvalues[MAX_PIXEL_MAP_TABLE]; - GLint i; - if (map==GL_PIXEL_MAP_I_TO_I || map==GL_PIXEL_MAP_S_TO_S) { - for (i=0;i MAX_PIXEL_MAP_TABLE) { + _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapusv(mapsize)" ); + return; + } + + if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) { + /* test that mapsize is a power of two */ + if (!_mesa_is_pow_two(mapsize)) { + _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" ); + return; + } + } + + FLUSH_VERTICES(ctx, _NEW_PIXEL); + + if (ctx->Unpack.BufferObj->Name) { + /* unpack pixelmap from PBO */ + GLubyte *buf; + /* Note, need to use DefaultPacking and Unpack's buffer object */ + ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj; + if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1, + GL_INTENSITY, GL_UNSIGNED_SHORT, + values)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPixelMapusv(invalid PBO access)"); + return; + } + /* restore */ + ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj; + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + GL_READ_ONLY_ARB, + ctx->Unpack.BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPixelMapusv(PBO is mapped)"); + return; + } + values = (const GLushort *) ADD_POINTERS(buf, values); + } + else if (!values) { + return; + } + + /* convert to floats */ + if (map == GL_PIXEL_MAP_I_TO_I || map == GL_PIXEL_MAP_S_TO_S) { + GLint i; + for (i = 0; i < mapsize; i++) { fvalues[i] = (GLfloat) values[i]; } } else { - for (i=0;iUnpack.BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + ctx->Unpack.BufferObj); + } + store_pixelmap(ctx, map, mapsize, fvalues); +} -void + +void GLAPIENTRY _mesa_GetPixelMapfv( GLenum map, GLfloat *values ) { GET_CURRENT_CONTEXT(ctx); - GLint i; + GLuint mapsize, i; + const struct gl_pixelmap *pm; + ASSERT_OUTSIDE_BEGIN_END(ctx); - switch (map) { - case GL_PIXEL_MAP_I_TO_I: - for (i=0;iPixel.MapItoIsize;i++) { - values[i] = (GLfloat) ctx->Pixel.MapItoI[i]; - } - break; - case GL_PIXEL_MAP_S_TO_S: - for (i=0;iPixel.MapStoSsize;i++) { - values[i] = (GLfloat) ctx->Pixel.MapStoS[i]; - } - break; - case GL_PIXEL_MAP_I_TO_R: - MEMCPY(values,ctx->Pixel.MapItoR,ctx->Pixel.MapItoRsize*sizeof(GLfloat)); - break; - case GL_PIXEL_MAP_I_TO_G: - MEMCPY(values,ctx->Pixel.MapItoG,ctx->Pixel.MapItoGsize*sizeof(GLfloat)); - break; - case GL_PIXEL_MAP_I_TO_B: - MEMCPY(values,ctx->Pixel.MapItoB,ctx->Pixel.MapItoBsize*sizeof(GLfloat)); - break; - case GL_PIXEL_MAP_I_TO_A: - MEMCPY(values,ctx->Pixel.MapItoA,ctx->Pixel.MapItoAsize*sizeof(GLfloat)); - break; - case GL_PIXEL_MAP_R_TO_R: - MEMCPY(values,ctx->Pixel.MapRtoR,ctx->Pixel.MapRtoRsize*sizeof(GLfloat)); - break; - case GL_PIXEL_MAP_G_TO_G: - MEMCPY(values,ctx->Pixel.MapGtoG,ctx->Pixel.MapGtoGsize*sizeof(GLfloat)); - break; - case GL_PIXEL_MAP_B_TO_B: - MEMCPY(values,ctx->Pixel.MapBtoB,ctx->Pixel.MapBtoBsize*sizeof(GLfloat)); - break; - case GL_PIXEL_MAP_A_TO_A: - MEMCPY(values,ctx->Pixel.MapAtoA,ctx->Pixel.MapAtoAsize*sizeof(GLfloat)); - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" ); + pm = get_pixelmap(ctx, map); + if (!pm) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapfv(map)"); + return; + } + + mapsize = pm->Size; + + if (ctx->Pack.BufferObj->Name) { + /* pack pixelmap into PBO */ + GLubyte *buf; + /* Note, need to use DefaultPacking and Pack's buffer object */ + ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj; + if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1, + GL_INTENSITY, GL_FLOAT, values)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPixelMapfv(invalid PBO access)"); + return; + } + /* restore */ + ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj; + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + GL_WRITE_ONLY_ARB, + ctx->Pack.BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPixelMapfv(PBO is mapped)"); + return; + } + values = (GLfloat *) ADD_POINTERS(buf, values); + } + else if (!values) { + return; + } + + if (map == GL_PIXEL_MAP_S_TO_S) { + /* special case */ + for (i = 0; i < mapsize; i++) { + values[i] = (GLfloat) ctx->PixelMaps.StoS.Map[i]; + } + } + else { + MEMCPY(values, pm->Map, mapsize * sizeof(GLfloat)); + } + + if (ctx->Pack.BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + ctx->Pack.BufferObj); } } -void +void GLAPIENTRY _mesa_GetPixelMapuiv( GLenum map, GLuint *values ) { GET_CURRENT_CONTEXT(ctx); - GLint i; + GLint mapsize, i; + const struct gl_pixelmap *pm; + ASSERT_OUTSIDE_BEGIN_END(ctx); - switch (map) { - case GL_PIXEL_MAP_I_TO_I: - MEMCPY(values, ctx->Pixel.MapItoI, ctx->Pixel.MapItoIsize*sizeof(GLint)); - break; - case GL_PIXEL_MAP_S_TO_S: - MEMCPY(values, ctx->Pixel.MapStoS, ctx->Pixel.MapStoSsize*sizeof(GLint)); - break; - case GL_PIXEL_MAP_I_TO_R: - for (i=0;iPixel.MapItoRsize;i++) { - values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoR[i] ); - } - break; - case GL_PIXEL_MAP_I_TO_G: - for (i=0;iPixel.MapItoGsize;i++) { - values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoG[i] ); - } - break; - case GL_PIXEL_MAP_I_TO_B: - for (i=0;iPixel.MapItoBsize;i++) { - values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoB[i] ); - } - break; - case GL_PIXEL_MAP_I_TO_A: - for (i=0;iPixel.MapItoAsize;i++) { - values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoA[i] ); - } - break; - case GL_PIXEL_MAP_R_TO_R: - for (i=0;iPixel.MapRtoRsize;i++) { - values[i] = FLOAT_TO_UINT( ctx->Pixel.MapRtoR[i] ); - } - break; - case GL_PIXEL_MAP_G_TO_G: - for (i=0;iPixel.MapGtoGsize;i++) { - values[i] = FLOAT_TO_UINT( ctx->Pixel.MapGtoG[i] ); - } - break; - case GL_PIXEL_MAP_B_TO_B: - for (i=0;iPixel.MapBtoBsize;i++) { - values[i] = FLOAT_TO_UINT( ctx->Pixel.MapBtoB[i] ); - } - break; - case GL_PIXEL_MAP_A_TO_A: - for (i=0;iPixel.MapAtoAsize;i++) { - values[i] = FLOAT_TO_UINT( ctx->Pixel.MapAtoA[i] ); - } - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" ); + pm = get_pixelmap(ctx, map); + if (!pm) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapuiv(map)"); + return; + } + mapsize = pm->Size; + + if (ctx->Pack.BufferObj->Name) { + /* pack pixelmap into PBO */ + GLubyte *buf; + /* Note, need to use DefaultPacking and Pack's buffer object */ + ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj; + if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1, + GL_INTENSITY, GL_UNSIGNED_INT, values)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPixelMapuiv(invalid PBO access)"); + return; + } + /* restore */ + ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj; + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + GL_WRITE_ONLY_ARB, + ctx->Pack.BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPixelMapuiv(PBO is mapped)"); + return; + } + values = (GLuint *) ADD_POINTERS(buf, values); + } + else if (!values) { + return; + } + + if (map == GL_PIXEL_MAP_S_TO_S) { + /* special case */ + MEMCPY(values, ctx->PixelMaps.StoS.Map, mapsize * sizeof(GLint)); + } + else { + for (i = 0; i < mapsize; i++) { + values[i] = FLOAT_TO_UINT( pm->Map[i] ); + } + } + + if (ctx->Pack.BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + ctx->Pack.BufferObj); } } -void +void GLAPIENTRY _mesa_GetPixelMapusv( GLenum map, GLushort *values ) { GET_CURRENT_CONTEXT(ctx); - GLint i; + GLint mapsize, i; + const struct gl_pixelmap *pm; + ASSERT_OUTSIDE_BEGIN_END(ctx); + pm = get_pixelmap(ctx, map); + if (!pm) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapusv(map)"); + return; + } + mapsize = pm ? pm->Size : 0; + + if (ctx->Pack.BufferObj->Name) { + /* pack pixelmap into PBO */ + GLubyte *buf; + /* Note, need to use DefaultPacking and Pack's buffer object */ + ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj; + if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1, + GL_INTENSITY, GL_UNSIGNED_SHORT, + values)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPixelMapusv(invalid PBO access)"); + return; + } + /* restore */ + ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj; + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + GL_WRITE_ONLY_ARB, + ctx->Pack.BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPixelMapusv(PBO is mapped)"); + return; + } + values = (GLushort *) ADD_POINTERS(buf, values); + } + else if (!values) { + return; + } + switch (map) { - case GL_PIXEL_MAP_I_TO_I: - for (i=0;iPixel.MapItoIsize;i++) { - values[i] = (GLushort) ctx->Pixel.MapItoI[i]; - } - break; - case GL_PIXEL_MAP_S_TO_S: - for (i=0;iPixel.MapStoSsize;i++) { - values[i] = (GLushort) ctx->Pixel.MapStoS[i]; - } - break; - case GL_PIXEL_MAP_I_TO_R: - for (i=0;iPixel.MapItoRsize;i++) { - values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoR[i] ); - } - break; - case GL_PIXEL_MAP_I_TO_G: - for (i=0;iPixel.MapItoGsize;i++) { - values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoG[i] ); - } - break; - case GL_PIXEL_MAP_I_TO_B: - for (i=0;iPixel.MapItoBsize;i++) { - values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoB[i] ); - } - break; - case GL_PIXEL_MAP_I_TO_A: - for (i=0;iPixel.MapItoAsize;i++) { - values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoA[i] ); - } - break; - case GL_PIXEL_MAP_R_TO_R: - for (i=0;iPixel.MapRtoRsize;i++) { - values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapRtoR[i] ); - } - break; - case GL_PIXEL_MAP_G_TO_G: - for (i=0;iPixel.MapGtoGsize;i++) { - values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapGtoG[i] ); - } - break; - case GL_PIXEL_MAP_B_TO_B: - for (i=0;iPixel.MapBtoBsize;i++) { - values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapBtoB[i] ); - } - break; - case GL_PIXEL_MAP_A_TO_A: - for (i=0;iPixel.MapAtoAsize;i++) { - values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapAtoA[i] ); - } - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" ); + /* special cases */ + case GL_PIXEL_MAP_I_TO_I: + for (i = 0; i < mapsize; i++) { + values[i] = (GLushort) CLAMP(ctx->PixelMaps.ItoI.Map[i], 0.0, 65535.); + } + break; + case GL_PIXEL_MAP_S_TO_S: + for (i = 0; i < mapsize; i++) { + values[i] = (GLushort) CLAMP(ctx->PixelMaps.StoS.Map[i], 0.0, 65535.); + } + break; + default: + for (i = 0; i < mapsize; i++) { + CLAMPED_FLOAT_TO_USHORT(values[i], pm->Map[i] ); + } + } + + if (ctx->Pack.BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + ctx->Pack.BufferObj); } } @@ -576,7 +545,7 @@ _mesa_GetPixelMapusv( GLenum map, GLushort *values ) * Implements glPixelTransfer[fi] whether called immediately or from a * display list. */ -void +void GLAPIENTRY _mesa_PixelTransferf( GLenum pname, GLfloat param ) { GET_CURRENT_CONTEXT(ctx); @@ -752,16 +721,16 @@ _mesa_PixelTransferf( GLenum pname, GLfloat param ) ctx->Pixel.PostConvolutionBias[2] = param; break; case GL_POST_CONVOLUTION_ALPHA_SCALE: - if (ctx->Pixel.PostConvolutionScale[2] == param) + if (ctx->Pixel.PostConvolutionScale[3] == param) return; FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.PostConvolutionScale[2] = param; + ctx->Pixel.PostConvolutionScale[3] = param; break; case GL_POST_CONVOLUTION_ALPHA_BIAS: - if (ctx->Pixel.PostConvolutionBias[2] == param) + if (ctx->Pixel.PostConvolutionBias[3] == param) return; FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.PostConvolutionBias[2] = param; + ctx->Pixel.PostConvolutionBias[3] = param; break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glPixelTransfer(pname)" ); @@ -770,561 +739,14 @@ _mesa_PixelTransferf( GLenum pname, GLfloat param ) } -void +void GLAPIENTRY _mesa_PixelTransferi( GLenum pname, GLint param ) { _mesa_PixelTransferf( pname, (GLfloat) param ); } -/**********************************************************************/ -/***** Pixel processing functions ******/ -/**********************************************************************/ -/* - * Apply scale and bias factors to an array of RGBA pixels. - */ -void -_mesa_scale_and_bias_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4], - GLfloat rScale, GLfloat gScale, - GLfloat bScale, GLfloat aScale, - GLfloat rBias, GLfloat gBias, - GLfloat bBias, GLfloat aBias) -{ - if (rScale != 1.0 || rBias != 0.0) { - GLuint i; - for (i = 0; i < n; i++) { - rgba[i][RCOMP] = rgba[i][RCOMP] * rScale + rBias; - } - } - if (gScale != 1.0 || gBias != 0.0) { - GLuint i; - for (i = 0; i < n; i++) { - rgba[i][GCOMP] = rgba[i][GCOMP] * gScale + gBias; - } - } - if (bScale != 1.0 || bBias != 0.0) { - GLuint i; - for (i = 0; i < n; i++) { - rgba[i][BCOMP] = rgba[i][BCOMP] * bScale + bBias; - } - } - if (aScale != 1.0 || aBias != 0.0) { - GLuint i; - for (i = 0; i < n; i++) { - rgba[i][ACOMP] = rgba[i][ACOMP] * aScale + aBias; - } - } -} - - -/* - * Apply pixel mapping to an array of floating point RGBA pixels. - */ -void -_mesa_map_rgba( const GLcontext *ctx, GLuint n, GLfloat rgba[][4] ) -{ - const GLfloat rscale = (GLfloat) (ctx->Pixel.MapRtoRsize - 1); - const GLfloat gscale = (GLfloat) (ctx->Pixel.MapGtoGsize - 1); - const GLfloat bscale = (GLfloat) (ctx->Pixel.MapBtoBsize - 1); - const GLfloat ascale = (GLfloat) (ctx->Pixel.MapAtoAsize - 1); - const GLfloat *rMap = ctx->Pixel.MapRtoR; - const GLfloat *gMap = ctx->Pixel.MapGtoG; - const GLfloat *bMap = ctx->Pixel.MapBtoB; - const GLfloat *aMap = ctx->Pixel.MapAtoA; - GLuint i; - for (i=0;iPixel.PostColorMatrixScale[0]; - const GLfloat rb = ctx->Pixel.PostColorMatrixBias[0]; - const GLfloat gs = ctx->Pixel.PostColorMatrixScale[1]; - const GLfloat gb = ctx->Pixel.PostColorMatrixBias[1]; - const GLfloat bs = ctx->Pixel.PostColorMatrixScale[2]; - const GLfloat bb = ctx->Pixel.PostColorMatrixBias[2]; - const GLfloat as = ctx->Pixel.PostColorMatrixScale[3]; - const GLfloat ab = ctx->Pixel.PostColorMatrixBias[3]; - const GLfloat *m = ctx->ColorMatrixStack.Top->m; - GLuint i; - for (i = 0; i < n; i++) { - const GLfloat r = rgba[i][RCOMP]; - const GLfloat g = rgba[i][GCOMP]; - const GLfloat b = rgba[i][BCOMP]; - const GLfloat a = rgba[i][ACOMP]; - rgba[i][RCOMP] = (m[0] * r + m[4] * g + m[ 8] * b + m[12] * a) * rs + rb; - rgba[i][GCOMP] = (m[1] * r + m[5] * g + m[ 9] * b + m[13] * a) * gs + gb; - rgba[i][BCOMP] = (m[2] * r + m[6] * g + m[10] * b + m[14] * a) * bs + bb; - rgba[i][ACOMP] = (m[3] * r + m[7] * g + m[11] * b + m[15] * a) * as + ab; - } -} - - -/* - * Apply a color table lookup to an array of colors. - */ -void -_mesa_lookup_rgba(const struct gl_color_table *table, - GLuint n, GLfloat rgba[][4]) -{ - if (!table->Table || table->Size == 0) - return; - - switch (table->Format) { - case GL_INTENSITY: - /* replace RGBA with I */ - if (!table->FloatTable) { - const GLint max = table->Size - 1; - const GLfloat scale = (GLfloat) max; - const GLchan *lut = (const GLchan *) table->Table; - GLuint i; - for (i = 0; i < n; i++) { - GLint j = IROUND(rgba[i][RCOMP] * scale); - GLfloat c = CHAN_TO_FLOAT(lut[CLAMP(j, 0, max)]); - rgba[i][RCOMP] = rgba[i][GCOMP] = - rgba[i][BCOMP] = rgba[i][ACOMP] = c; - } - } - else { - const GLint max = table->Size - 1; - const GLfloat scale = (GLfloat) max; - const GLfloat *lut = (const GLfloat *) table->Table; - GLuint i; - for (i = 0; i < n; i++) { - GLint j = IROUND(rgba[i][RCOMP] * scale); - GLfloat c = lut[CLAMP(j, 0, max)]; - rgba[i][RCOMP] = rgba[i][GCOMP] = - rgba[i][BCOMP] = rgba[i][ACOMP] = c; - } - } - break; - case GL_LUMINANCE: - /* replace RGB with L */ - if (!table->FloatTable) { - const GLint max = table->Size - 1; - const GLfloat scale = (GLfloat) max; - const GLchan *lut = (const GLchan *) table->Table; - GLuint i; - for (i = 0; i < n; i++) { - GLint j = IROUND(rgba[i][RCOMP] * scale); - GLfloat c = CHAN_TO_FLOAT(lut[CLAMP(j, 0, max)]); - rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = c; - } - } - else { - const GLint max = table->Size - 1; - const GLfloat scale = (GLfloat) max; - const GLfloat *lut = (const GLfloat *) table->Table; - GLuint i; - for (i = 0; i < n; i++) { - GLint j = IROUND(rgba[i][RCOMP] * scale); - GLfloat c = lut[CLAMP(j, 0, max)]; - rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = c; - } - } - break; - case GL_ALPHA: - /* replace A with A */ - if (!table->FloatTable) { - const GLint max = table->Size - 1; - const GLfloat scale = (GLfloat) max; - const GLchan *lut = (const GLchan *) table->Table; - GLuint i; - for (i = 0; i < n; i++) { - GLint j = IROUND(rgba[i][ACOMP] * scale); - rgba[i][ACOMP] = CHAN_TO_FLOAT(lut[CLAMP(j, 0, max)]); - } - } - else { - const GLint max = table->Size - 1; - const GLfloat scale = (GLfloat) max; - const GLfloat *lut = (const GLfloat *) table->Table; - GLuint i; - for (i = 0; i < n; i++) { - GLint j = IROUND(rgba[i][ACOMP] * scale); - rgba[i][ACOMP] = lut[CLAMP(j, 0, max)]; - } - } - break; - case GL_LUMINANCE_ALPHA: - /* replace RGBA with LLLA */ - if (!table->FloatTable) { - const GLint max = table->Size - 1; - const GLfloat scale = (GLfloat) max; - const GLchan *lut = (const GLchan *) table->Table; - GLuint i; - for (i = 0; i < n; i++) { - GLint jL = IROUND(rgba[i][RCOMP] * scale); - GLint jA = IROUND(rgba[i][ACOMP] * scale); - GLfloat luminance, alpha; - jL = CLAMP(jL, 0, max); - jA = CLAMP(jA, 0, max); - luminance = CHAN_TO_FLOAT(lut[jL * 2 + 0]); - alpha = CHAN_TO_FLOAT(lut[jA * 2 + 1]); - rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = luminance; - rgba[i][ACOMP] = alpha;; - } - } - else { - const GLint max = table->Size - 1; - const GLfloat scale = (GLfloat) max; - const GLfloat *lut = (const GLfloat *) table->Table; - GLuint i; - for (i = 0; i < n; i++) { - GLint jL = IROUND(rgba[i][RCOMP] * scale); - GLint jA = IROUND(rgba[i][ACOMP] * scale); - GLfloat luminance, alpha; - jL = CLAMP(jL, 0, max); - jA = CLAMP(jA, 0, max); - luminance = lut[jL * 2 + 0]; - alpha = lut[jA * 2 + 1]; - rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = luminance; - rgba[i][ACOMP] = alpha;; - } - } - break; - case GL_RGB: - /* replace RGB with RGB */ - if (!table->FloatTable) { - const GLint max = table->Size - 1; - const GLfloat scale = (GLfloat) max; - const GLchan *lut = (const GLchan *) table->Table; - GLuint i; - for (i = 0; i < n; i++) { - GLint jR = IROUND(rgba[i][RCOMP] * scale); - GLint jG = IROUND(rgba[i][GCOMP] * scale); - GLint jB = IROUND(rgba[i][BCOMP] * scale); - jR = CLAMP(jR, 0, max); - jG = CLAMP(jG, 0, max); - jB = CLAMP(jB, 0, max); - rgba[i][RCOMP] = CHAN_TO_FLOAT(lut[jR * 3 + 0]); - rgba[i][GCOMP] = CHAN_TO_FLOAT(lut[jG * 3 + 1]); - rgba[i][BCOMP] = CHAN_TO_FLOAT(lut[jB * 3 + 2]); - } - } - else { - const GLint max = table->Size - 1; - const GLfloat scale = (GLfloat) max; - const GLfloat *lut = (const GLfloat *) table->Table; - GLuint i; - for (i = 0; i < n; i++) { - GLint jR = IROUND(rgba[i][RCOMP] * scale); - GLint jG = IROUND(rgba[i][GCOMP] * scale); - GLint jB = IROUND(rgba[i][BCOMP] * scale); - jR = CLAMP(jR, 0, max); - jG = CLAMP(jG, 0, max); - jB = CLAMP(jB, 0, max); - rgba[i][RCOMP] = lut[jR * 3 + 0]; - rgba[i][GCOMP] = lut[jG * 3 + 1]; - rgba[i][BCOMP] = lut[jB * 3 + 2]; - } - } - break; - case GL_RGBA: - /* replace RGBA with RGBA */ - if (!table->FloatTable) { - const GLint max = table->Size - 1; - const GLfloat scale = (GLfloat) max; - const GLchan *lut = (const GLchan *) table->Table; - GLuint i; - for (i = 0; i < n; i++) { - GLint jR = IROUND(rgba[i][RCOMP] * scale); - GLint jG = IROUND(rgba[i][GCOMP] * scale); - GLint jB = IROUND(rgba[i][BCOMP] * scale); - GLint jA = IROUND(rgba[i][ACOMP] * scale); - jR = CLAMP(jR, 0, max); - jG = CLAMP(jG, 0, max); - jB = CLAMP(jB, 0, max); - jA = CLAMP(jA, 0, max); - rgba[i][RCOMP] = CHAN_TO_FLOAT(lut[jR * 4 + 0]); - rgba[i][GCOMP] = CHAN_TO_FLOAT(lut[jG * 4 + 1]); - rgba[i][BCOMP] = CHAN_TO_FLOAT(lut[jB * 4 + 2]); - rgba[i][ACOMP] = CHAN_TO_FLOAT(lut[jA * 4 + 3]); - } - } - else { - const GLint max = table->Size - 1; - const GLfloat scale = (GLfloat) max; - const GLfloat *lut = (const GLfloat *) table->Table; - GLuint i; - for (i = 0; i < n; i++) { - GLint jR = IROUND(rgba[i][RCOMP] * scale); - GLint jG = IROUND(rgba[i][GCOMP] * scale); - GLint jB = IROUND(rgba[i][BCOMP] * scale); - GLint jA = IROUND(rgba[i][ACOMP] * scale); - jR = CLAMP(jR, 0, max); - jG = CLAMP(jG, 0, max); - jB = CLAMP(jB, 0, max); - jA = CLAMP(jA, 0, max); - rgba[i][RCOMP] = lut[jR * 4 + 0]; - rgba[i][GCOMP] = lut[jG * 4 + 1]; - rgba[i][BCOMP] = lut[jB * 4 + 2]; - rgba[i][ACOMP] = lut[jA * 4 + 3]; - } - } - break; - default: - _mesa_problem(NULL, "Bad format in _mesa_lookup_rgba"); - return; - } -} - - - -/* - * Apply color index shift and offset to an array of pixels. - */ -void -_mesa_shift_and_offset_ci( const GLcontext *ctx, GLuint n, GLuint indexes[] ) -{ - GLint shift = ctx->Pixel.IndexShift; - GLint offset = ctx->Pixel.IndexOffset; - GLuint i; - if (shift > 0) { - for (i=0;i> shift) + offset; - } - } - else { - for (i=0;iPixel.MapItoIsize - 1; - GLuint i; - for (i=0;iPixel.MapItoI[ index[i] & mask ]; - } -} - - -/* - * Map color indexes to rgba values. - */ -void -_mesa_map_ci_to_rgba_chan( const GLcontext *ctx, GLuint n, - const GLuint index[], GLchan rgba[][4] ) -{ -#if CHAN_BITS == 8 - GLuint rmask = ctx->Pixel.MapItoRsize - 1; - GLuint gmask = ctx->Pixel.MapItoGsize - 1; - GLuint bmask = ctx->Pixel.MapItoBsize - 1; - GLuint amask = ctx->Pixel.MapItoAsize - 1; - const GLubyte *rMap = ctx->Pixel.MapItoR8; - const GLubyte *gMap = ctx->Pixel.MapItoG8; - const GLubyte *bMap = ctx->Pixel.MapItoB8; - const GLubyte *aMap = ctx->Pixel.MapItoA8; - GLuint i; - for (i=0;iPixel.MapItoRsize - 1; - GLuint gmask = ctx->Pixel.MapItoGsize - 1; - GLuint bmask = ctx->Pixel.MapItoBsize - 1; - GLuint amask = ctx->Pixel.MapItoAsize - 1; - const GLfloat *rMap = ctx->Pixel.MapItoR; - const GLfloat *gMap = ctx->Pixel.MapItoG; - const GLfloat *bMap = ctx->Pixel.MapItoB; - const GLfloat *aMap = ctx->Pixel.MapItoA; - GLuint i; - for (i=0;iPixel.MapItoRsize - 1; - GLuint gmask = ctx->Pixel.MapItoGsize - 1; - GLuint bmask = ctx->Pixel.MapItoBsize - 1; - GLuint amask = ctx->Pixel.MapItoAsize - 1; - const GLfloat *rMap = ctx->Pixel.MapItoR; - const GLfloat *gMap = ctx->Pixel.MapItoG; - const GLfloat *bMap = ctx->Pixel.MapItoB; - const GLfloat *aMap = ctx->Pixel.MapItoA; - GLuint i; - for (i=0;iPixel.MapItoRsize - 1; - GLuint gmask = ctx->Pixel.MapItoGsize - 1; - GLuint bmask = ctx->Pixel.MapItoBsize - 1; - GLuint amask = ctx->Pixel.MapItoAsize - 1; - const GLubyte *rMap = ctx->Pixel.MapItoR8; - const GLubyte *gMap = ctx->Pixel.MapItoG8; - const GLubyte *bMap = ctx->Pixel.MapItoB8; - const GLubyte *aMap = ctx->Pixel.MapItoA8; - GLuint i; - for (i=0;iPixel.MapItoRsize - 1; - GLuint gmask = ctx->Pixel.MapItoGsize - 1; - GLuint bmask = ctx->Pixel.MapItoBsize - 1; - GLuint amask = ctx->Pixel.MapItoAsize - 1; - const GLfloat *rMap = ctx->Pixel.MapItoR; - const GLfloat *gMap = ctx->Pixel.MapItoG; - const GLfloat *bMap = ctx->Pixel.MapItoB; - const GLfloat *aMap = ctx->Pixel.MapItoA; - GLuint i; - for (i=0;iPixel.IndexShift; - GLint offset = ctx->Pixel.IndexOffset; - if (shift > 0) { - for (i=0;i> shift) + offset; - } - } - else { - for (i=0;iPixel.MapStoSsize - 1; - GLuint i; - for (i=0;iPixel.MapStoS[ stencil[i] & mask ]; - } -} - - - -/* - * This function converts an array of GLchan colors to GLfloat colors. - * Most importantly, it undoes the non-uniform quantization of pixel - * values introduced when we convert shallow (< 8 bit) pixel values - * to GLubytes in the ctx->Driver.ReadRGBASpan() functions. - * This fixes a number of OpenGL conformance failures when running on - * 16bpp displays, for example. - */ -void -_mesa_chan_to_float_span(const GLcontext *ctx, GLuint n, - CONST GLchan rgba[][4], GLfloat rgbaf[][4]) -{ -#if CHAN_TYPE == GL_FLOAT - MEMCPY(rgbaf, rgba, n * 4 * sizeof(GLfloat)); -#else - const GLuint rShift = CHAN_BITS - ctx->Visual.redBits; - const GLuint gShift = CHAN_BITS - ctx->Visual.greenBits; - const GLuint bShift = CHAN_BITS - ctx->Visual.blueBits; - GLuint aShift; - const GLfloat rScale = 1.0F / (GLfloat) ((1 << ctx->Visual.redBits ) - 1); - const GLfloat gScale = 1.0F / (GLfloat) ((1 << ctx->Visual.greenBits) - 1); - const GLfloat bScale = 1.0F / (GLfloat) ((1 << ctx->Visual.blueBits ) - 1); - GLfloat aScale; - GLuint i; - - if (ctx->Visual.alphaBits > 0) { - aShift = CHAN_BITS - ctx->Visual.alphaBits; - aScale = 1.0F / (GLfloat) ((1 << ctx->Visual.alphaBits) - 1); - } - else { - aShift = 0; - aScale = 1.0F / CHAN_MAXF; - } - - for (i = 0; i < n; i++) { - const GLint r = rgba[i][RCOMP] >> rShift; - const GLint g = rgba[i][GCOMP] >> gShift; - const GLint b = rgba[i][BCOMP] >> bShift; - const GLint a = rgba[i][ACOMP] >> aShift; - rgbaf[i][RCOMP] = (GLfloat) r * rScale; - rgbaf[i][GCOMP] = (GLfloat) g * gScale; - rgbaf[i][BCOMP] = (GLfloat) b * bScale; - rgbaf[i][ACOMP] = (GLfloat) a * aScale; - } -#endif -} - /**********************************************************************/ /***** State Management *****/ /**********************************************************************/ @@ -1350,7 +772,7 @@ update_image_transfer_state(GLcontext *ctx) if (ctx->Pixel.MapColorFlag) mask |= IMAGE_MAP_COLOR_BIT; - if (ctx->Pixel.ColorTableEnabled) + if (ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION]) mask |= IMAGE_COLOR_TABLE_BIT; if (ctx->Pixel.Convolution1DEnabled || @@ -1369,7 +791,7 @@ update_image_transfer_state(GLcontext *ctx) } } - if (ctx->Pixel.PostConvolutionColorTableEnabled) + if (ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION]) mask |= IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT; if (ctx->ColorMatrixStack.Top->type != MATRIX_IDENTITY || @@ -1383,7 +805,7 @@ update_image_transfer_state(GLcontext *ctx) ctx->Pixel.PostColorMatrixBias[3] != 0.0F) mask |= IMAGE_COLOR_MATRIX_BIT; - if (ctx->Pixel.PostColorMatrixColorTableEnabled) + if (ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX]) mask |= IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT; if (ctx->Pixel.HistogramEnabled) @@ -1396,6 +818,9 @@ update_image_transfer_state(GLcontext *ctx) } +/** + * Update mesa pixel transfer derived state. + */ void _mesa_update_pixel( GLcontext *ctx, GLuint new_state ) { if (new_state & _NEW_COLOR_MATRIX) @@ -1403,7 +828,7 @@ void _mesa_update_pixel( GLcontext *ctx, GLuint new_state ) /* References ColorMatrix.type (derived above). */ - if (new_state & _IMAGE_NEW_TRANSFER_STATE) + if (new_state & _MESA_NEW_TRANSFER_STATE) update_image_transfer_state(ctx); } @@ -1412,7 +837,20 @@ void _mesa_update_pixel( GLcontext *ctx, GLuint new_state ) /***** Initialization *****/ /**********************************************************************/ -void _mesa_init_pixel( GLcontext * ctx ) +static void +init_pixelmap(struct gl_pixelmap *map) +{ + map->Size = 1; + map->Map[0] = 0.0; + map->Map8[0] = 0; +} + + +/** + * Initialize the context's PIXEL attribute group. + */ +void +_mesa_init_pixel( GLcontext *ctx ) { int i; @@ -1433,46 +871,25 @@ void _mesa_init_pixel( GLcontext * ctx ) ctx->Pixel.ZoomY = 1.0; ctx->Pixel.MapColorFlag = GL_FALSE; ctx->Pixel.MapStencilFlag = GL_FALSE; - ctx->Pixel.MapStoSsize = 1; - ctx->Pixel.MapItoIsize = 1; - ctx->Pixel.MapItoRsize = 1; - ctx->Pixel.MapItoGsize = 1; - ctx->Pixel.MapItoBsize = 1; - ctx->Pixel.MapItoAsize = 1; - ctx->Pixel.MapRtoRsize = 1; - ctx->Pixel.MapGtoGsize = 1; - ctx->Pixel.MapBtoBsize = 1; - ctx->Pixel.MapAtoAsize = 1; - ctx->Pixel.MapStoS[0] = 0; - ctx->Pixel.MapItoI[0] = 0; - ctx->Pixel.MapItoR[0] = 0.0; - ctx->Pixel.MapItoG[0] = 0.0; - ctx->Pixel.MapItoB[0] = 0.0; - ctx->Pixel.MapItoA[0] = 0.0; - ctx->Pixel.MapItoR8[0] = 0; - ctx->Pixel.MapItoG8[0] = 0; - ctx->Pixel.MapItoB8[0] = 0; - ctx->Pixel.MapItoA8[0] = 0; - ctx->Pixel.MapRtoR[0] = 0.0; - ctx->Pixel.MapGtoG[0] = 0.0; - ctx->Pixel.MapBtoB[0] = 0.0; - ctx->Pixel.MapAtoA[0] = 0.0; + init_pixelmap(&ctx->PixelMaps.StoS); + init_pixelmap(&ctx->PixelMaps.ItoI); + init_pixelmap(&ctx->PixelMaps.ItoR); + init_pixelmap(&ctx->PixelMaps.ItoG); + init_pixelmap(&ctx->PixelMaps.ItoB); + init_pixelmap(&ctx->PixelMaps.ItoA); + init_pixelmap(&ctx->PixelMaps.RtoR); + init_pixelmap(&ctx->PixelMaps.GtoG); + init_pixelmap(&ctx->PixelMaps.BtoB); + init_pixelmap(&ctx->PixelMaps.AtoA); ctx->Pixel.HistogramEnabled = GL_FALSE; ctx->Pixel.MinMaxEnabled = GL_FALSE; - ctx->Pixel.PixelTextureEnabled = GL_FALSE; - ctx->Pixel.FragmentRgbSource = GL_PIXEL_GROUP_COLOR_SGIS; - ctx->Pixel.FragmentAlphaSource = GL_PIXEL_GROUP_COLOR_SGIS; ASSIGN_4V(ctx->Pixel.PostColorMatrixScale, 1.0, 1.0, 1.0, 1.0); ASSIGN_4V(ctx->Pixel.PostColorMatrixBias, 0.0, 0.0, 0.0, 0.0); - ASSIGN_4V(ctx->Pixel.ColorTableScale, 1.0, 1.0, 1.0, 1.0); - ASSIGN_4V(ctx->Pixel.ColorTableBias, 0.0, 0.0, 0.0, 0.0); - ASSIGN_4V(ctx->Pixel.PCCTscale, 1.0, 1.0, 1.0, 1.0); - ASSIGN_4V(ctx->Pixel.PCCTbias, 0.0, 0.0, 0.0, 0.0); - ASSIGN_4V(ctx->Pixel.PCMCTscale, 1.0, 1.0, 1.0, 1.0); - ASSIGN_4V(ctx->Pixel.PCMCTbias, 0.0, 0.0, 0.0, 0.0); - ctx->Pixel.ColorTableEnabled = GL_FALSE; - ctx->Pixel.PostConvolutionColorTableEnabled = GL_FALSE; - ctx->Pixel.PostColorMatrixColorTableEnabled = GL_FALSE; + for (i = 0; i < COLORTABLE_MAX; i++) { + ASSIGN_4V(ctx->Pixel.ColorTableScale[i], 1.0, 1.0, 1.0, 1.0); + ASSIGN_4V(ctx->Pixel.ColorTableBias[i], 0.0, 0.0, 0.0, 0.0); + ctx->Pixel.ColorTableEnabled[i] = GL_FALSE; + } ctx->Pixel.Convolution1DEnabled = GL_FALSE; ctx->Pixel.Convolution2DEnabled = GL_FALSE; ctx->Pixel.Separable2DEnabled = GL_FALSE; @@ -1489,32 +906,15 @@ void _mesa_init_pixel( GLcontext * ctx ) } ASSIGN_4V(ctx->Pixel.PostConvolutionScale, 1.0, 1.0, 1.0, 1.0); ASSIGN_4V(ctx->Pixel.PostConvolutionBias, 0.0, 0.0, 0.0, 0.0); - - /* Pixel transfer */ - ctx->Pack.Alignment = 4; - ctx->Pack.RowLength = 0; - ctx->Pack.ImageHeight = 0; - ctx->Pack.SkipPixels = 0; - ctx->Pack.SkipRows = 0; - ctx->Pack.SkipImages = 0; - ctx->Pack.SwapBytes = GL_FALSE; - ctx->Pack.LsbFirst = GL_FALSE; - ctx->Unpack.Alignment = 4; - ctx->Unpack.RowLength = 0; - ctx->Unpack.ImageHeight = 0; - ctx->Unpack.SkipPixels = 0; - ctx->Unpack.SkipRows = 0; - ctx->Unpack.SkipImages = 0; - ctx->Unpack.SwapBytes = GL_FALSE; - ctx->Unpack.LsbFirst = GL_FALSE; + /* GL_SGI_texture_color_table */ + ASSIGN_4V(ctx->Pixel.TextureColorTableScale, 1.0, 1.0, 1.0, 1.0); + ASSIGN_4V(ctx->Pixel.TextureColorTableBias, 0.0, 0.0, 0.0, 0.0); if (ctx->Visual.doubleBufferMode) { ctx->Pixel.ReadBuffer = GL_BACK; - ctx->Pixel._ReadSrcMask = BACK_LEFT_BIT; } else { ctx->Pixel.ReadBuffer = GL_FRONT; - ctx->Pixel._ReadSrcMask = FRONT_LEFT_BIT; } /* Miscellaneous */