/* * Mesa 3-D graphics library * * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. * Copyright (c) 2008-2009 VMware, Inc. * * 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 * 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. */ /** * \file texfetch_tmp.h * Texel fetch functions template. * * This template file is used by texfetch.c to generate texel fetch functions * for 1-D, 2-D and 3-D texture images. * * It should be expanded by defining \p DIM as the number texture dimensions * (1, 2 or 3). According to the value of \p DIM a series of macros is defined * for the texel lookup in the gl_texture_image::Data. * * \author Gareth Hughes * \author Brian Paul */ #if DIM == 1 #define TEXEL_ADDR( type, image, i, j, k, size ) \ ((void) (j), (void) (k), ((type *)(image)->ImageSlices[0] + (i) * (size))) #define FETCH(x) fetch_texel_1d_##x #elif DIM == 2 #define TEXEL_ADDR( type, image, i, j, k, size ) \ ((void) (k), \ ((type *)((GLubyte *) (image)->ImageSlices[0] + (image)->RowStride * (j)) + \ (i) * (size))) #define FETCH(x) fetch_texel_2d_##x #elif DIM == 3 #define TEXEL_ADDR( type, image, i, j, k, size ) \ ((type *)((GLubyte *) (image)->ImageSlices[k] + \ (image)->RowStride * (j)) + (i) * (size)) #define FETCH(x) fetch_texel_3d_##x #else #error illegal number of texture dimensions #endif static void FETCH(Z_UNORM32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[0] = src[0] * (1.0F / 0xffffffff); } static void FETCH(Z_UNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[0] = src[0] * (1.0F / 65535.0F); } static void FETCH(RGBA_FLOAT32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 4); texel[RCOMP] = src[0]; texel[GCOMP] = src[1]; texel[BCOMP] = src[2]; texel[ACOMP] = src[3]; } static void FETCH(RGBA_FLOAT16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 4); texel[RCOMP] = _mesa_half_to_float(src[0]); texel[GCOMP] = _mesa_half_to_float(src[1]); texel[BCOMP] = _mesa_half_to_float(src[2]); texel[ACOMP] = _mesa_half_to_float(src[3]); } static void FETCH(RGB_FLOAT32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 3); texel[RCOMP] = src[0]; texel[GCOMP] = src[1]; texel[BCOMP] = src[2]; texel[ACOMP] = 1.0F; } static void FETCH(RGB_FLOAT16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 3); texel[RCOMP] = _mesa_half_to_float(src[0]); texel[GCOMP] = _mesa_half_to_float(src[1]); texel[BCOMP] = _mesa_half_to_float(src[2]); texel[ACOMP] = 1.0F; } static void FETCH(A_FLOAT32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = 0.0F; texel[ACOMP] = src[0]; } static void FETCH(A_FLOAT16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = 0.0F; texel[ACOMP] = _mesa_half_to_float(src[0]); } static void FETCH(L_FLOAT32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = src[0]; texel[ACOMP] = 1.0F; } static void FETCH(L_FLOAT16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = _mesa_half_to_float(src[0]); texel[ACOMP] = 1.0F; } static void FETCH(LA_FLOAT32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = src[0]; texel[ACOMP] = src[1]; } static void FETCH(LA_FLOAT16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = _mesa_half_to_float(src[0]); texel[ACOMP] = _mesa_half_to_float(src[1]); } static void FETCH(I_FLOAT32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = texel[ACOMP] = src[0]; } static void FETCH(I_FLOAT16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = texel[ACOMP] = _mesa_half_to_float(src[0]); } static void FETCH(R_FLOAT32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); texel[RCOMP] = src[0]; texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } static void FETCH(R_FLOAT16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); texel[RCOMP] = _mesa_half_to_float(src[0]); texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } static void FETCH(RG_FLOAT32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); texel[RCOMP] = src[0]; texel[GCOMP] = src[1]; texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } static void FETCH(RG_FLOAT16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2); texel[RCOMP] = _mesa_half_to_float(src[0]); texel[GCOMP] = _mesa_half_to_float(src[1]); texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } static void FETCH(A8B8G8R8_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); } static void FETCH(R8G8B8A8_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); } static void FETCH(B8G8R8A8_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); texel[BCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); } static void FETCH(A8R8G8B8_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); } static void FETCH(X8B8G8R8_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); texel[ACOMP] = 1.0f; } static void FETCH(R8G8B8X8_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); texel[ACOMP] = 1.0f; } static void FETCH(B8G8R8X8_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); texel[BCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); texel[ACOMP] = 1.0f; } static void FETCH(X8R8G8B8_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); texel[ACOMP] = 1.0f; } static void FETCH(BGR_UNORM8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); texel[RCOMP] = UBYTE_TO_FLOAT( src[2] ); texel[GCOMP] = UBYTE_TO_FLOAT( src[1] ); texel[BCOMP] = UBYTE_TO_FLOAT( src[0] ); texel[ACOMP] = 1.0F; } static void FETCH(RGB_UNORM8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); texel[RCOMP] = UBYTE_TO_FLOAT( src[0] ); texel[GCOMP] = UBYTE_TO_FLOAT( src[1] ); texel[BCOMP] = UBYTE_TO_FLOAT( src[2] ); texel[ACOMP] = 1.0F; } static void FETCH(B5G6R5_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); const GLushort s = *src; texel[RCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F); texel[GCOMP] = ((s >> 5 ) & 0x3f) * (1.0F / 63.0F); texel[BCOMP] = ((s ) & 0x1f) * (1.0F / 31.0F); texel[ACOMP] = 1.0F; } static void FETCH(R5G6B5_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); const GLushort s = *src; texel[RCOMP] = ((s ) & 0x1f) * (1.0F / 31.0F); texel[GCOMP] = ((s >> 5 ) & 0x3f) * (1.0F / 63.0F); texel[BCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F); texel[ACOMP] = 1.0F; } static void FETCH(B4G4R4A4_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); const GLushort s = *src; texel[RCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F); texel[GCOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); texel[BCOMP] = ((s ) & 0xf) * (1.0F / 15.0F); texel[ACOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F); } static void FETCH(A4R4G4B4_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); texel[GCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F); texel[BCOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F); texel[ACOMP] = ((s ) & 0xf) * (1.0F / 15.0F); } static void FETCH(A1B5G5R5_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); const GLushort s = *src; texel[RCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F); texel[GCOMP] = ((s >> 6) & 0x1f) * (1.0F / 31.0F); texel[BCOMP] = ((s >> 1) & 0x1f) * (1.0F / 31.0F); texel[ACOMP] = ((s ) & 0x01) * 1.0F; } static void FETCH(B5G5R5A1_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); const GLushort s = *src; texel[RCOMP] = ((s >> 10) & 0x1f) * (1.0F / 31.0F); texel[GCOMP] = ((s >> 5) & 0x1f) * (1.0F / 31.0F); texel[BCOMP] = ((s >> 0) & 0x1f) * (1.0F / 31.0F); texel[ACOMP] = ((s >> 15) & 0x01) * 1.0F; } static void FETCH(A1R5G5B5_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); const GLushort s = (*src << 8) | (*src >> 8); /* byteswap */ texel[RCOMP] = ((s >> 1) & 0x1f) * (1.0F / 31.0F); texel[GCOMP] = ((s >> 6) & 0x1f) * (1.0F / 31.0F); texel[BCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F); texel[ACOMP] = ((s ) & 0x01) * 1.0F; } static void FETCH(B10G10R10A2_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); const GLuint s = *src; texel[RCOMP] = ((s >> 20) & 0x3ff) * (1.0F / 1023.0F); texel[GCOMP] = ((s >> 10) & 0x3ff) * (1.0F / 1023.0F); texel[BCOMP] = ((s >> 0) & 0x3ff) * (1.0F / 1023.0F); texel[ACOMP] = ((s >> 30) & 0x03) * (1.0F / 3.0F); } static void FETCH(R10G10B10A2_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); const GLuint s = *src; texel[RCOMP] = ((s >> 0) & 0x3ff) * (1.0F / 1023.0F); texel[GCOMP] = ((s >> 10) & 0x3ff) * (1.0F / 1023.0F); texel[BCOMP] = ((s >> 20) & 0x3ff) * (1.0F / 1023.0F); texel[ACOMP] = ((s >> 30) & 0x03) * (1.0F / 3.0F); } static void FETCH(R8G8_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = UBYTE_TO_FLOAT( s & 0xff ); texel[GCOMP] = UBYTE_TO_FLOAT( s >> 8 ); texel[BCOMP] = 0.0; texel[ACOMP] = 1.0; } static void FETCH(G8R8_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = UBYTE_TO_FLOAT( s >> 8 ); texel[GCOMP] = UBYTE_TO_FLOAT( s & 0xff ); texel[BCOMP] = 0.0; texel[ACOMP] = 1.0; } static void FETCH(L4A4_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLubyte s = *TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = (s & 0xf) * (1.0F / 15.0F); texel[ACOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); } static void FETCH(L8A8_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = UBYTE_TO_FLOAT( s & 0xff ); texel[ACOMP] = UBYTE_TO_FLOAT( s >> 8 ); } static void FETCH(R_UNORM8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLubyte s = *TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); texel[RCOMP] = UBYTE_TO_FLOAT(s); texel[GCOMP] = 0.0; texel[BCOMP] = 0.0; texel[ACOMP] = 1.0; } static void FETCH(R_UNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = USHORT_TO_FLOAT(s); texel[GCOMP] = 0.0; texel[BCOMP] = 0.0; texel[ACOMP] = 1.0; } static void FETCH(A8L8_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = UBYTE_TO_FLOAT( s >> 8 ); texel[ACOMP] = UBYTE_TO_FLOAT( s & 0xff ); } static void FETCH(R16G16_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = USHORT_TO_FLOAT( s & 0xffff ); texel[GCOMP] = USHORT_TO_FLOAT( s >> 16 ); texel[BCOMP] = 0.0; texel[ACOMP] = 1.0; } static void FETCH(G16R16_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = USHORT_TO_FLOAT( s >> 16 ); texel[GCOMP] = USHORT_TO_FLOAT( s & 0xffff ); texel[BCOMP] = 0.0; texel[ACOMP] = 1.0; } static void FETCH(L16A16_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = USHORT_TO_FLOAT( s & 0xffff ); texel[ACOMP] = USHORT_TO_FLOAT( s >> 16 ); } static void FETCH(A16L16_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = USHORT_TO_FLOAT( s >> 16 ); texel[ACOMP] = USHORT_TO_FLOAT( s & 0xffff ); } static void FETCH(B2G3R3_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); const GLubyte s = *src; texel[RCOMP] = ((s >> 5) & 0x7) * (1.0F / 7.0F); texel[GCOMP] = ((s >> 2) & 0x7) * (1.0F / 7.0F); texel[BCOMP] = ((s ) & 0x3) * (1.0F / 3.0F); texel[ACOMP] = 1.0F; } static void FETCH(A_UNORM8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = 0.0F; texel[ACOMP] = UBYTE_TO_FLOAT( src[0] ); } static void FETCH(A_UNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = 0.0F; texel[ACOMP] = USHORT_TO_FLOAT( src[0] ); } static void FETCH(L_UNORM8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = UBYTE_TO_FLOAT( src[0] ); texel[ACOMP] = 1.0F; } static void FETCH(L_UNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = USHORT_TO_FLOAT( src[0] ); texel[ACOMP] = 1.0F; } static void FETCH(I_UNORM8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = texel[ACOMP] = UBYTE_TO_FLOAT( src[0] ); } static void FETCH(I_UNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = texel[ACOMP] = USHORT_TO_FLOAT( src[0] ); } static void FETCH(BGR_SRGB8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); texel[RCOMP] = util_format_srgb_8unorm_to_linear_float(src[2]); texel[GCOMP] = util_format_srgb_8unorm_to_linear_float(src[1]); texel[BCOMP] = util_format_srgb_8unorm_to_linear_float(src[0]); texel[ACOMP] = 1.0F; } static void FETCH(A8B8G8R8_SRGB)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 24) ); texel[GCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 16) & 0xff ); texel[BCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 8) & 0xff ); texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); /* linear! */ } static void FETCH(B8G8R8A8_SRGB)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 16) & 0xff ); texel[GCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 8) & 0xff ); texel[BCOMP] = util_format_srgb_8unorm_to_linear_float( (s ) & 0xff ); texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); /* linear! */ } static void FETCH(A8R8G8B8_SRGB)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 8) & 0xff ); texel[GCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 16) & 0xff ); texel[BCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 24) ); texel[ACOMP] = UBYTE_TO_FLOAT( s & 0xff ); /* linear! */ } static void FETCH(R8G8B8A8_SRGB)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = util_format_srgb_8unorm_to_linear_float( (s ) & 0xff ); texel[GCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 8) & 0xff ); texel[BCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 16) & 0xff ); texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); /* linear! */ } static void FETCH(R8G8B8X8_SRGB)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = util_format_srgb_8unorm_to_linear_float( (s ) & 0xff ); texel[GCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 8) & 0xff ); texel[BCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 16) & 0xff ); texel[ACOMP] = 1.0f; } static void FETCH(X8B8G8R8_SRGB)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 24) ); texel[GCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 16) & 0xff ); texel[BCOMP] = util_format_srgb_8unorm_to_linear_float( (s >> 8) & 0xff ); texel[ACOMP] = 1.0f; } static void FETCH(L_SRGB8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = util_format_srgb_8unorm_to_linear_float(src[0]); texel[ACOMP] = 1.0F; } static void FETCH(L8A8_SRGB)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = util_format_srgb_8unorm_to_linear_float(s & 0xff); texel[ACOMP] = UBYTE_TO_FLOAT(s >> 8); /* linear */ } static void FETCH(A8L8_SRGB)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 2); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = util_format_srgb_8unorm_to_linear_float(s >> 8); texel[ACOMP] = UBYTE_TO_FLOAT(s & 0xff); /* linear */ } static void FETCH(RGBA_SINT8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLbyte *src = TEXEL_ADDR(GLbyte, texImage, i, j, k, 4); texel[RCOMP] = (GLfloat) src[0]; texel[GCOMP] = (GLfloat) src[1]; texel[BCOMP] = (GLfloat) src[2]; texel[ACOMP] = (GLfloat) src[3]; } static void FETCH(RGBA_SINT16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort *src = TEXEL_ADDR(GLshort, texImage, i, j, k, 4); texel[RCOMP] = (GLfloat) src[0]; texel[GCOMP] = (GLfloat) src[1]; texel[BCOMP] = (GLfloat) src[2]; texel[ACOMP] = (GLfloat) src[3]; } static void FETCH(RGBA_SINT32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLint *src = TEXEL_ADDR(GLint, texImage, i, j, k, 4); texel[RCOMP] = (GLfloat) src[0]; texel[GCOMP] = (GLfloat) src[1]; texel[BCOMP] = (GLfloat) src[2]; texel[ACOMP] = (GLfloat) src[3]; } static void FETCH(RGBA_UINT8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 4); texel[RCOMP] = (GLfloat) src[0]; texel[GCOMP] = (GLfloat) src[1]; texel[BCOMP] = (GLfloat) src[2]; texel[ACOMP] = (GLfloat) src[3]; } static void FETCH(RGBA_UINT16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 4); texel[RCOMP] = (GLfloat) src[0]; texel[GCOMP] = (GLfloat) src[1]; texel[BCOMP] = (GLfloat) src[2]; texel[ACOMP] = (GLfloat) src[3]; } static void FETCH(RGBA_UINT32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 4); texel[RCOMP] = (GLfloat) src[0]; texel[GCOMP] = (GLfloat) src[1]; texel[BCOMP] = (GLfloat) src[2]; texel[ACOMP] = (GLfloat) src[3]; } static void FETCH(R_SNORM8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); texel[RCOMP] = BYTE_TO_FLOAT_TEX( s ); texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } static void FETCH(A_SNORM8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); texel[RCOMP] = 0.0F; texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = BYTE_TO_FLOAT_TEX( s ); } static void FETCH(L_SNORM8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = BYTE_TO_FLOAT_TEX( s ); texel[ACOMP] = 1.0F; } static void FETCH(I_SNORM8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = texel[ACOMP] = BYTE_TO_FLOAT_TEX( s ); } static void FETCH(R8G8_SNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) ); texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } static void FETCH(L8A8_SNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) ); texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); } static void FETCH(A8L8_SNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) ); } static void FETCH(X8B8G8R8_SNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) ); texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); texel[ACOMP] = 1.0f; } static void FETCH(A8B8G8R8_SNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) ); texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s ) ); } static void FETCH(R8G8B8A8_SNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s ) ); texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) ); } static void FETCH(R_SNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); texel[RCOMP] = SHORT_TO_FLOAT_TEX( s ); texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } static void FETCH(A_SNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); texel[RCOMP] = 0.0F; texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = SHORT_TO_FLOAT_TEX( s ); } static void FETCH(L_SNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = SHORT_TO_FLOAT_TEX( s ); texel[ACOMP] = 1.0F; } static void FETCH(I_SNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = texel[ACOMP] = SHORT_TO_FLOAT_TEX( s ); } static void FETCH(R16G16_SNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 2); texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } static void FETCH(LA_SNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 2); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); texel[ACOMP] = SHORT_TO_FLOAT_TEX( s[1] ); } static void FETCH(RGB_SNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 3); texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[2] ); texel[ACOMP] = 1.0F; } static void FETCH(RGBA_SNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 4); texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[2] ); texel[ACOMP] = SHORT_TO_FLOAT_TEX( s[3] ); } static void FETCH(RGBA_UNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *s = TEXEL_ADDR(GLushort, texImage, i, j, k, 4); texel[RCOMP] = USHORT_TO_FLOAT( s[0] ); texel[GCOMP] = USHORT_TO_FLOAT( s[1] ); texel[BCOMP] = USHORT_TO_FLOAT( s[2] ); texel[ACOMP] = USHORT_TO_FLOAT( s[3] ); } static void FETCH(RGBX_UNORM16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *s = TEXEL_ADDR(GLushort, texImage, i, j, k, 4); texel[RCOMP] = USHORT_TO_FLOAT(s[0]); texel[GCOMP] = USHORT_TO_FLOAT(s[1]); texel[BCOMP] = USHORT_TO_FLOAT(s[2]); texel[ACOMP] = 1.0f; } static void FETCH(RGBX_FLOAT16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLhalfARB *s = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 4); texel[RCOMP] = _mesa_half_to_float(s[0]); texel[GCOMP] = _mesa_half_to_float(s[1]); texel[BCOMP] = _mesa_half_to_float(s[2]); texel[ACOMP] = 1.0f; } static void FETCH(RGBX_FLOAT32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLfloat *s = TEXEL_ADDR(GLfloat, texImage, i, j, k, 4); texel[RCOMP] = s[0]; texel[GCOMP] = s[1]; texel[BCOMP] = s[2]; texel[ACOMP] = 1.0f; } /** * Fetch texel from 1D, 2D or 3D ycbcr texture, returning RGBA. */ static void FETCH(YCBCR)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *src0 = TEXEL_ADDR(GLushort, texImage, (i & ~1), j, k, 1); /* even */ const GLushort *src1 = src0 + 1; /* odd */ const GLubyte y0 = (*src0 >> 8) & 0xff; /* luminance */ const GLubyte cb = *src0 & 0xff; /* chroma U */ const GLubyte y1 = (*src1 >> 8) & 0xff; /* luminance */ const GLubyte cr = *src1 & 0xff; /* chroma V */ const GLubyte y = (i & 1) ? y1 : y0; /* choose even/odd luminance */ GLfloat r = 1.164F * (y - 16) + 1.596F * (cr - 128); GLfloat g = 1.164F * (y - 16) - 0.813F * (cr - 128) - 0.391F * (cb - 128); GLfloat b = 1.164F * (y - 16) + 2.018F * (cb - 128); r *= (1.0F / 255.0F); g *= (1.0F / 255.0F); b *= (1.0F / 255.0F); texel[RCOMP] = CLAMP(r, 0.0F, 1.0F); texel[GCOMP] = CLAMP(g, 0.0F, 1.0F); texel[BCOMP] = CLAMP(b, 0.0F, 1.0F); texel[ACOMP] = 1.0F; } /** * Fetch texel from 1D, 2D or 3D ycbcr texture, returning RGBA. */ static void FETCH(YCBCR_REV)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *src0 = TEXEL_ADDR(GLushort, texImage, (i & ~1), j, k, 1); /* even */ const GLushort *src1 = src0 + 1; /* odd */ const GLubyte y0 = *src0 & 0xff; /* luminance */ const GLubyte cr = (*src0 >> 8) & 0xff; /* chroma V */ const GLubyte y1 = *src1 & 0xff; /* luminance */ const GLubyte cb = (*src1 >> 8) & 0xff; /* chroma U */ const GLubyte y = (i & 1) ? y1 : y0; /* choose even/odd luminance */ GLfloat r = 1.164F * (y - 16) + 1.596F * (cr - 128); GLfloat g = 1.164F * (y - 16) - 0.813F * (cr - 128) - 0.391F * (cb - 128); GLfloat b = 1.164F * (y - 16) + 2.018F * (cb - 128); r *= (1.0F / 255.0F); g *= (1.0F / 255.0F); b *= (1.0F / 255.0F); texel[RCOMP] = CLAMP(r, 0.0F, 1.0F); texel[GCOMP] = CLAMP(g, 0.0F, 1.0F); texel[BCOMP] = CLAMP(b, 0.0F, 1.0F); texel[ACOMP] = 1.0F; } static void FETCH(S8_UINT_Z24_UNORM)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { /* only return Z, not stencil data */ const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); const GLdouble scale = 1.0 / (GLdouble) 0xffffff; texel[0] = (GLfloat) (((*src) >> 8) * scale); ASSERT(texImage->Base.TexFormat == MESA_FORMAT_S8_UINT_Z24_UNORM || texImage->Base.TexFormat == MESA_FORMAT_X8_UINT_Z24_UNORM); ASSERT(texel[0] >= 0.0F); ASSERT(texel[0] <= 1.0F); } static void FETCH(Z24_UNORM_S8_UINT)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { /* only return Z, not stencil data */ const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); const GLdouble scale = 1.0 / (GLdouble) 0xffffff; texel[0] = (GLfloat) (((*src) & 0x00ffffff) * scale); ASSERT(texImage->Base.TexFormat == MESA_FORMAT_Z24_UNORM_S8_UINT || texImage->Base.TexFormat == MESA_FORMAT_Z24_UNORM_X8_UINT); ASSERT(texel[0] >= 0.0F); ASSERT(texel[0] <= 1.0F); } static void FETCH(R9G9B9E5_FLOAT)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); rgb9e5_to_float3(*src, texel); texel[ACOMP] = 1.0F; } static void FETCH(R11G11B10_FLOAT)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); r11g11b10f_to_float3(*src, texel); texel[ACOMP] = 1.0F; } static void FETCH(Z32_FLOAT_S8X24_UINT)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); texel[RCOMP] = src[0]; texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } #undef TEXEL_ADDR #undef DIM #undef FETCH