/* * Mesa 3-D graphics library * * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. * Copyright (c) 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 s_texfetch.c * * Texel fetch/store functions * * \author Gareth Hughes */ #include "main/colormac.h" #include "main/macros.h" #include "main/texcompress.h" #include "main/texcompress_fxt1.h" #include "main/texcompress_s3tc.h" #include "main/texcompress_rgtc.h" #include "main/texcompress_etc.h" #include "main/teximage.h" #include "main/samplerobj.h" #include "s_context.h" #include "s_texfetch.h" #include "../../gallium/auxiliary/util/u_format_rgb9e5.h" #include "../../gallium/auxiliary/util/u_format_r11g11b10f.h" /** * Convert an 8-bit sRGB value from non-linear space to a * linear RGB value in [0, 1]. * Implemented with a 256-entry lookup table. */ static inline GLfloat nonlinear_to_linear(GLubyte cs8) { static GLfloat table[256]; static GLboolean tableReady = GL_FALSE; if (!tableReady) { /* compute lookup table now */ GLuint i; for (i = 0; i < 256; i++) { const GLfloat cs = UBYTE_TO_FLOAT(i); if (cs <= 0.04045) { table[i] = cs / 12.92f; } else { table[i] = (GLfloat) pow((cs + 0.055) / 1.055, 2.4); } } tableReady = GL_TRUE; } return table[cs8]; } /* Texel fetch routines for all supported formats */ #define DIM 1 #include "s_texfetch_tmp.h" #define DIM 2 #include "s_texfetch_tmp.h" #define DIM 3 #include "s_texfetch_tmp.h" /** * All compressed texture texel fetching is done though this function. * Basically just call a core-Mesa texel fetch function. */ static void fetch_compressed(const struct swrast_texture_image *swImage, GLint i, GLint j, GLint k, GLfloat *texel) { /* The FetchCompressedTexel function takes an integer pixel rowstride, * while the image's rowstride is bytes per row of blocks. */ GLuint bw, bh; GLuint texelBytes = _mesa_get_format_bytes(swImage->Base.TexFormat); _mesa_get_format_block_size(swImage->Base.TexFormat, &bw, &bh); assert(swImage->RowStride * bw % texelBytes == 0); swImage->FetchCompressedTexel(swImage->ImageSlices[k], swImage->RowStride * bw / texelBytes, i, j, texel); } /** * Null texel fetch function. * * Have to have this so the FetchTexel function pointer is never NULL. */ static void fetch_null_texelf( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { (void) texImage; (void) i; (void) j; (void) k; texel[RCOMP] = 0.0; texel[GCOMP] = 0.0; texel[BCOMP] = 0.0; texel[ACOMP] = 0.0; _mesa_warning(NULL, "fetch_null_texelf() called!"); } /** * Table to map MESA_FORMAT_ to texel fetch/store funcs. * XXX this is somewhat temporary. */ static struct { mesa_format Name; FetchTexelFunc Fetch1D; FetchTexelFunc Fetch2D; FetchTexelFunc Fetch3D; } texfetch_funcs[] = { { MESA_FORMAT_NONE, fetch_null_texelf, fetch_null_texelf, fetch_null_texelf }, /* Packed unorm formats */ { MESA_FORMAT_A8B8G8R8_UNORM, fetch_texel_1d_A8B8G8R8_UNORM, fetch_texel_2d_A8B8G8R8_UNORM, fetch_texel_3d_A8B8G8R8_UNORM }, { MESA_FORMAT_X8B8G8R8_UNORM, fetch_texel_1d_X8B8G8R8_UNORM, fetch_texel_2d_X8B8G8R8_UNORM, fetch_texel_3d_X8B8G8R8_UNORM }, { MESA_FORMAT_R8G8B8A8_UNORM, fetch_texel_1d_R8G8B8A_UNORM, fetch_texel_2d_R8G8B8A_UNORM, fetch_texel_3d_R8G8B8A_UNORM }, { MESA_FORMAT_R8G8B8X8_UNORM, fetch_texel_1d_R8G8B8X8_UNORM, fetch_texel_2d_R8G8B8X8_UNORM, fetch_texel_3d_R8G8B8X8_UNORM }, { MESA_FORMAT_B8G8R8A8_UNORM, fetch_texel_1d_B8G8R8A8_UNORM, fetch_texel_2d_B8G8R8A8_UNORM, fetch_texel_3d_B8G8R8A8_UNORM }, { MESA_FORMAT_B8G8R8X8_UNORM, fetch_texel_1d_B8G8R8X8_UNORM, fetch_texel_2d_B8G8R8X8_UNORM, fetch_texel_3d_B8G8R8X8_UNORM }, { MESA_FORMAT_A8R8G8B8_UNORM, fetch_texel_1d_A8R8G8B8_UNORM, fetch_texel_2d_A8R8G8B8_UNORM, fetch_texel_3d_A8R8G8B8_UNORM }, { MESA_FORMAT_X8R8G8B8_UNORM, fetch_texel_1d_X8R8G8B8_UNORM, fetch_texel_2d_X8R8G8B8_UNORM, fetch_texel_3d_X8R8G8B8_UNORM }, { MESA_FORMAT_L16A16_UNORM, fetch_texel_1d_f_al1616, fetch_texel_2d_f_al1616, fetch_texel_3d_f_al1616 }, { MESA_FORMAT_A16L16_UNORM, fetch_texel_1d_f_al1616_rev, fetch_texel_2d_f_al1616_rev, fetch_texel_3d_f_al1616_rev }, { MESA_FORMAT_B5G6R5_UNORM, fetch_texel_1d_f_rgb565, fetch_texel_2d_f_rgb565, fetch_texel_3d_f_rgb565 }, { MESA_FORMAT_R5G6B5_UNORM, fetch_texel_1d_f_rgb565_rev, fetch_texel_2d_f_rgb565_rev, fetch_texel_3d_f_rgb565_rev }, { MESA_FORMAT_B4G4R4A4_UNORM, fetch_texel_1d_f_argb4444, fetch_texel_2d_f_argb4444, fetch_texel_3d_f_argb4444 }, { MESA_FORMAT_B4G4R4X4_UNORM, NULL, NULL, NULL }, { MESA_FORMAT_A4R4G4B4_UNORM, fetch_texel_1d_f_argb4444_rev, fetch_texel_2d_f_argb4444_rev, fetch_texel_3d_f_argb4444_rev }, { MESA_FORMAT_A1B5G5R5_UNORM, fetch_texel_1d_f_rgba5551, fetch_texel_2d_f_rgba5551, fetch_texel_3d_f_rgba5551 }, { MESA_FORMAT_B5G5R5A1_UNORM, fetch_texel_1d_f_argb1555, fetch_texel_2d_f_argb1555, fetch_texel_3d_f_argb1555 }, { MESA_FORMAT_B5G5R5X1_UNORM, NULL, NULL, NULL }, { MESA_FORMAT_A1R5G5B5_UNORM, fetch_texel_1d_f_argb1555_rev, fetch_texel_2d_f_argb1555_rev, fetch_texel_3d_f_argb1555_rev }, { MESA_FORMAT_L8A8_UNORM, fetch_texel_1d_f_al88, fetch_texel_2d_f_al88, fetch_texel_3d_f_al88 }, { MESA_FORMAT_A8L8_UNORM, fetch_texel_1d_f_al88_rev, fetch_texel_2d_f_al88_rev, fetch_texel_3d_f_al88_rev }, { MESA_FORMAT_R8G8_UNORM, fetch_texel_1d_f_gr88, fetch_texel_2d_f_gr88, fetch_texel_3d_f_gr88 }, { MESA_FORMAT_G8R8_UNORM, fetch_texel_1d_f_rg88, fetch_texel_2d_f_rg88, fetch_texel_3d_f_rg88 }, { MESA_FORMAT_L4A4_UNORM, fetch_texel_1d_f_al44, fetch_texel_2d_f_al44, fetch_texel_3d_f_al44 }, { MESA_FORMAT_B2G3R3_UNORM, fetch_texel_1d_f_rgb332, fetch_texel_2d_f_rgb332, fetch_texel_3d_f_rgb332 }, { MESA_FORMAT_R16G16_UNORM, fetch_texel_1d_f_rg1616, fetch_texel_2d_f_rg1616, fetch_texel_3d_f_rg1616 }, { MESA_FORMAT_G16R16_UNORM, fetch_texel_1d_f_rg1616_rev, fetch_texel_2d_f_rg1616_rev, fetch_texel_3d_f_rg1616_rev }, { MESA_FORMAT_B10G10R10A2_UNORM, fetch_texel_1d_f_argb2101010, fetch_texel_2d_f_argb2101010, fetch_texel_3d_f_argb2101010 }, { MESA_FORMAT_B10G10R10X2_UNORM, NULL, NULL, NULL }, { MESA_FORMAT_R10G10B10A2_UNORM, NULL, NULL, NULL }, { MESA_FORMAT_S8_UINT_Z24_UNORM, fetch_texel_1d_f_z24_s8, fetch_texel_2d_f_z24_s8, fetch_texel_3d_f_z24_s8 }, { MESA_FORMAT_X8_UINT_Z24_UNORM, fetch_texel_1d_f_z24_s8, fetch_texel_2d_f_z24_s8, fetch_texel_3d_f_z24_s8 }, { MESA_FORMAT_Z24_UNORM_S8_UINT, fetch_texel_1d_f_s8_z24, fetch_texel_2d_f_s8_z24, fetch_texel_3d_f_s8_z24 }, { MESA_FORMAT_Z24_UNORM_X8_UINT, fetch_texel_1d_f_s8_z24, fetch_texel_2d_f_s8_z24, fetch_texel_3d_f_s8_z24 }, { MESA_FORMAT_YCBCR, fetch_texel_1d_f_ycbcr, fetch_texel_2d_f_ycbcr, fetch_texel_3d_f_ycbcr }, { MESA_FORMAT_YCBCR_REV, fetch_texel_1d_f_ycbcr_rev, fetch_texel_2d_f_ycbcr_rev, fetch_texel_3d_f_ycbcr_rev }, { MESA_FORMAT_DUDV8, fetch_texel_1d_dudv8, fetch_texel_2d_dudv8, fetch_texel_3d_dudv8 }, /* Array unorm formats */ { MESA_FORMAT_A_UNORM8, fetch_texel_1d_f_a8, fetch_texel_2d_f_a8, fetch_texel_3d_f_a8 }, { MESA_FORMAT_A_UNORM16, fetch_texel_1d_f_a16, fetch_texel_2d_f_a16, fetch_texel_3d_f_a16 }, { MESA_FORMAT_L_UNORM8, fetch_texel_1d_f_l8, fetch_texel_2d_f_l8, fetch_texel_3d_f_l8 }, { MESA_FORMAT_L_UNORM16, fetch_texel_1d_f_l16, fetch_texel_2d_f_l16, fetch_texel_3d_f_l16 }, { MESA_FORMAT_I_UNORM8, fetch_texel_1d_f_i8, fetch_texel_2d_f_i8, fetch_texel_3d_f_i8 }, { MESA_FORMAT_I_UNORM16, fetch_texel_1d_f_i16, fetch_texel_2d_f_i16, fetch_texel_3d_f_i16 }, { MESA_FORMAT_R_UNORM8, fetch_texel_1d_f_r8, fetch_texel_2d_f_r8, fetch_texel_3d_f_r8 }, { MESA_FORMAT_R_UNORM16, fetch_texel_1d_f_r16, fetch_texel_2d_f_r16, fetch_texel_3d_f_r16 }, { MESA_FORMAT_BGR_UNORM8, fetch_texel_1d_f_rgb888, fetch_texel_2d_f_rgb888, fetch_texel_3d_f_rgb888 }, { MESA_FORMAT_RGB_UNORM8, fetch_texel_1d_f_bgr888, fetch_texel_2d_f_bgr888, fetch_texel_3d_f_bgr888 }, { MESA_FORMAT_RGBA_UNORM16, fetch_texel_1d_rgba_16, fetch_texel_2d_rgba_16, fetch_texel_3d_rgba_16 }, { MESA_FORMAT_RGBX_UNORM16, fetch_texel_1d_xbgr16161616_unorm, fetch_texel_2d_xbgr16161616_unorm, fetch_texel_3d_xbgr16161616_unorm }, { MESA_FORMAT_Z_UNORM16, fetch_texel_1d_f_z16, fetch_texel_2d_f_z16, fetch_texel_3d_f_z16 }, { MESA_FORMAT_Z_UNORM32, fetch_texel_1d_f_z32, fetch_texel_2d_f_z32, fetch_texel_3d_f_z32 }, { MESA_FORMAT_S_UINT8, NULL, NULL, NULL }, /* Packed signed/normalized formats */ { MESA_FORMAT_A8B8G8R8_SNORM, fetch_texel_1d_A8B8G8R8_SNORM, fetch_texel_2d_A8B8G8R8_SNORM, fetch_texel_3d_A8B8G8R8_SNORM }, { MESA_FORMAT_X8B8G8R8_SNORM, fetch_texel_1d_X8B8G8R8_SNORM, fetch_texel_2d_X8B8G8R8_SNORM, fetch_texel_3d_X8B8G8R8_SNORM }, { MESA_FORMAT_R8G8B8A8_SNORM, fetch_texel_1d_R8G8B8A8_SNORM, fetch_texel_2d_R8G8B8A8_SNORM, fetch_texel_3d_R8G8B8A8_SNORM }, { MESA_FORMAT_R8G8B8X8_SNORM, NULL, NULL, NULL }, { MESA_FORMAT_R16G16_SNORM, fetch_texel_1d_signed_rg1616, fetch_texel_2d_signed_rg1616, fetch_texel_3d_signed_rg1616 }, { MESA_FORMAT_G16R16_SNORM, NULL, NULL, NULL }, { MESA_FORMAT_R8G8_SNORM, fetch_texel_1d_signed_rg88_rev, fetch_texel_2d_signed_rg88_rev, fetch_texel_3d_signed_rg88_rev }, { MESA_FORMAT_G8R8_SNORM, NULL, NULL, NULL }, { MESA_FORMAT_L8A8_SNORM, fetch_texel_1d_signed_al88, fetch_texel_2d_signed_al88, fetch_texel_3d_signed_al88 }, /* Array signed/normalized formats */ { MESA_FORMAT_A_SNORM8, fetch_texel_1d_signed_a8, fetch_texel_2d_signed_a8, fetch_texel_3d_signed_a8 }, { MESA_FORMAT_A_SNORM16, fetch_texel_1d_signed_a16, fetch_texel_2d_signed_a16, fetch_texel_3d_signed_a16 }, { MESA_FORMAT_L_SNORM8, fetch_texel_1d_signed_l8, fetch_texel_2d_signed_l8, fetch_texel_3d_signed_l8 }, { MESA_FORMAT_L_SNORM16, fetch_texel_1d_signed_l16, fetch_texel_2d_signed_l16, fetch_texel_3d_signed_l16 }, { MESA_FORMAT_I_SNORM8, fetch_texel_1d_signed_i8, fetch_texel_2d_signed_i8, fetch_texel_3d_signed_i8 }, { MESA_FORMAT_I_SNORM16, fetch_texel_1d_signed_i16, fetch_texel_2d_signed_i16, fetch_texel_3d_signed_i16 }, { MESA_FORMAT_R_SNORM8, fetch_texel_1d_signed_r8, fetch_texel_2d_signed_r8, fetch_texel_3d_signed_r8 }, { MESA_FORMAT_R_SNORM16, fetch_texel_1d_signed_r16, fetch_texel_2d_signed_r16, fetch_texel_3d_signed_r16 }, { MESA_FORMAT_LA_SNORM16, fetch_texel_1d_signed_al1616, fetch_texel_2d_signed_al1616, fetch_texel_3d_signed_al1616 }, { MESA_FORMAT_RGB_SNORM16, fetch_texel_1d_signed_rgb_16, fetch_texel_2d_signed_rgb_16, fetch_texel_3d_signed_rgb_16 }, { MESA_FORMAT_RGBA_SNORM16, fetch_texel_1d_signed_rgba_16, fetch_texel_2d_signed_rgba_16, fetch_texel_3d_signed_rgba_16 }, { MESA_FORMAT_RGBX_SNORM16, NULL, NULL, NULL }, /* Packed sRGB formats */ { MESA_FORMAT_A8B8G8R8_SRGB, fetch_texel_1d_srgba8, fetch_texel_2d_srgba8, fetch_texel_3d_srgba8 }, { MESA_FORMAT_B8G8R8A8_SRGB, fetch_texel_1d_sargb8, fetch_texel_2d_sargb8, fetch_texel_3d_sargb8 }, { MESA_FORMAT_B8G8R8X8_SRGB, NULL, NULL, NULL }, { MESA_FORMAT_R8G8B8A8_SRGB, fetch_texel_1d_sabgr8, fetch_texel_2d_sabgr8, fetch_texel_3d_sabgr8 }, { MESA_FORMAT_R8G8B8X8_SRGB, fetch_texel_1d_sxbgr8, fetch_texel_2d_sxbgr8, fetch_texel_3d_sxbgr8 }, { MESA_FORMAT_L8A8_SRGB, fetch_texel_1d_sla8, fetch_texel_2d_sla8, fetch_texel_3d_sla8 }, /* Array sRGB formats */ { MESA_FORMAT_L_SRGB8, fetch_texel_1d_sl8, fetch_texel_2d_sl8, fetch_texel_3d_sl8 }, { MESA_FORMAT_BGR_SRGB8, fetch_texel_1d_srgb8, fetch_texel_2d_srgb8, fetch_texel_3d_srgb8 }, /* Packed float formats */ { MESA_FORMAT_R9G9B9E5_FLOAT, fetch_texel_1d_rgb9_e5, fetch_texel_2d_rgb9_e5, fetch_texel_3d_rgb9_e5 }, { MESA_FORMAT_R11G11B10_FLOAT, fetch_texel_1d_r11_g11_b10f, fetch_texel_2d_r11_g11_b10f, fetch_texel_3d_r11_g11_b10f }, { MESA_FORMAT_Z32_FLOAT_S8X24_UINT, fetch_texel_1d_z32f_x24s8, fetch_texel_2d_z32f_x24s8, fetch_texel_3d_z32f_x24s8 }, /* Array float formats */ { MESA_FORMAT_A_FLOAT16, fetch_texel_1d_f_alpha_f16, fetch_texel_2d_f_alpha_f16, fetch_texel_3d_f_alpha_f16 }, { MESA_FORMAT_A_FLOAT32, fetch_texel_1d_f_alpha_f32, fetch_texel_2d_f_alpha_f32, fetch_texel_3d_f_alpha_f32 }, { MESA_FORMAT_L_FLOAT16, fetch_texel_1d_f_luminance_f16, fetch_texel_2d_f_luminance_f16, fetch_texel_3d_f_luminance_f16 }, { MESA_FORMAT_L_FLOAT32, fetch_texel_1d_f_luminance_f32, fetch_texel_2d_f_luminance_f32, fetch_texel_3d_f_luminance_f32 }, { MESA_FORMAT_LA_FLOAT16, fetch_texel_1d_f_luminance_alpha_f16, fetch_texel_2d_f_luminance_alpha_f16, fetch_texel_3d_f_luminance_alpha_f16 }, { MESA_FORMAT_LA_FLOAT32, fetch_texel_1d_f_luminance_alpha_f32, fetch_texel_2d_f_luminance_alpha_f32, fetch_texel_3d_f_luminance_alpha_f32 }, { MESA_FORMAT_I_FLOAT16, fetch_texel_1d_f_intensity_f16, fetch_texel_2d_f_intensity_f16, fetch_texel_3d_f_intensity_f16 }, { MESA_FORMAT_I_FLOAT32, fetch_texel_1d_f_intensity_f32, fetch_texel_2d_f_intensity_f32, fetch_texel_3d_f_intensity_f32 }, { MESA_FORMAT_R_FLOAT16, fetch_texel_1d_f_r_f16, fetch_texel_2d_f_r_f16, fetch_texel_3d_f_r_f16 }, { MESA_FORMAT_R_FLOAT32, fetch_texel_1d_f_r_f32, fetch_texel_2d_f_r_f32, fetch_texel_3d_f_r_f32 }, { MESA_FORMAT_RG_FLOAT16, fetch_texel_1d_f_rg_f16, fetch_texel_2d_f_rg_f16, fetch_texel_3d_f_rg_f16 }, { MESA_FORMAT_RG_FLOAT32, fetch_texel_1d_f_rg_f32, fetch_texel_2d_f_rg_f32, fetch_texel_3d_f_rg_f32 }, { MESA_FORMAT_RGB_FLOAT16, fetch_texel_1d_f_rgb_f16, fetch_texel_2d_f_rgb_f16, fetch_texel_3d_f_rgb_f16 }, { MESA_FORMAT_RGB_FLOAT32, fetch_texel_1d_f_rgb_f32, fetch_texel_2d_f_rgb_f32, fetch_texel_3d_f_rgb_f32 }, { MESA_FORMAT_RGBA_FLOAT16, fetch_texel_1d_f_rgba_f16, fetch_texel_2d_f_rgba_f16, fetch_texel_3d_f_rgba_f16 }, { MESA_FORMAT_RGBA_FLOAT32, fetch_texel_1d_f_rgba_f32, fetch_texel_2d_f_rgba_f32, fetch_texel_3d_f_rgba_f32 }, { MESA_FORMAT_RGBX_FLOAT16, fetch_texel_1d_xbgr16161616_float, fetch_texel_2d_xbgr16161616_float, fetch_texel_3d_xbgr16161616_float }, { MESA_FORMAT_RGBX_FLOAT32, fetch_texel_1d_xbgr32323232_float, fetch_texel_2d_xbgr32323232_float, fetch_texel_3d_xbgr32323232_float }, { MESA_FORMAT_Z_FLOAT32, fetch_texel_1d_f_r_f32, /* Reuse the R32F functions. */ fetch_texel_2d_f_r_f32, fetch_texel_3d_f_r_f32 }, /* Packed signed/unsigned non-normalized integer formats */ { MESA_FORMAT_B10G10R10A2_UINT, NULL, NULL, NULL }, { MESA_FORMAT_R10G10B10A2_UINT, NULL, NULL, NULL }, /* Array signed/unsigned non-normalized integer formats */ { MESA_FORMAT_A_UINT8, NULL, NULL, NULL }, { MESA_FORMAT_A_UINT16, NULL, NULL, NULL }, { MESA_FORMAT_A_UINT32, NULL, NULL, NULL }, { MESA_FORMAT_A_SINT8, NULL, NULL, NULL }, { MESA_FORMAT_A_SINT16, NULL, NULL, NULL }, { MESA_FORMAT_A_SINT32, NULL, NULL, NULL }, { MESA_FORMAT_I_UINT8, NULL, NULL, NULL }, { MESA_FORMAT_I_UINT16, NULL, NULL, NULL }, { MESA_FORMAT_I_UINT32, NULL, NULL, NULL }, { MESA_FORMAT_I_SINT8, NULL, NULL, NULL }, { MESA_FORMAT_I_SINT16, NULL, NULL, NULL }, { MESA_FORMAT_I_SINT32, NULL, NULL, NULL }, { MESA_FORMAT_L_UINT8, NULL, NULL, NULL }, { MESA_FORMAT_L_UINT16, NULL, NULL, NULL }, { MESA_FORMAT_L_UINT32, NULL, NULL, NULL }, { MESA_FORMAT_L_SINT8, NULL, NULL, NULL }, { MESA_FORMAT_L_SINT16, NULL, NULL, NULL }, { MESA_FORMAT_L_SINT32, NULL, NULL, NULL }, { MESA_FORMAT_LA_UINT8, NULL, NULL, NULL }, { MESA_FORMAT_LA_UINT16, NULL, NULL, NULL }, { MESA_FORMAT_LA_UINT32, NULL, NULL, NULL }, { MESA_FORMAT_LA_SINT8, NULL, NULL, NULL }, { MESA_FORMAT_LA_SINT16, NULL, NULL, NULL }, { MESA_FORMAT_LA_SINT32, NULL, NULL, NULL }, { MESA_FORMAT_R_UINT8, NULL, NULL, NULL }, { MESA_FORMAT_R_UINT16, NULL, NULL, NULL }, { MESA_FORMAT_R_UINT32, NULL, NULL, NULL }, { MESA_FORMAT_R_SINT8, NULL, NULL, NULL }, { MESA_FORMAT_R_SINT16, NULL, NULL, NULL }, { MESA_FORMAT_R_SINT32, NULL, NULL, NULL }, { MESA_FORMAT_RG_UINT8, NULL, NULL, NULL }, { MESA_FORMAT_RG_UINT16, NULL, NULL, NULL }, { MESA_FORMAT_RG_UINT32, NULL, NULL, NULL }, { MESA_FORMAT_RG_SINT8, NULL, NULL, NULL }, { MESA_FORMAT_RG_SINT16, NULL, NULL, NULL }, { MESA_FORMAT_RG_SINT32, NULL, NULL, NULL }, { MESA_FORMAT_RGB_UINT8, NULL, NULL, NULL }, { MESA_FORMAT_RGB_UINT16, NULL, NULL, NULL }, { MESA_FORMAT_RGB_UINT32, NULL, NULL, NULL }, { MESA_FORMAT_RGB_SINT8, NULL, NULL, NULL }, { MESA_FORMAT_RGB_SINT16, NULL, NULL, NULL }, { MESA_FORMAT_RGB_SINT32, NULL, NULL, NULL }, { MESA_FORMAT_RGBA_UINT8, fetch_texel_1d_rgba_uint8, fetch_texel_2d_rgba_uint8, fetch_texel_3d_rgba_uint8 }, { MESA_FORMAT_RGBA_UINT16, fetch_texel_1d_rgba_uint16, fetch_texel_2d_rgba_uint16, fetch_texel_3d_rgba_uint16 }, { MESA_FORMAT_RGBA_UINT32, fetch_texel_1d_rgba_uint32, fetch_texel_2d_rgba_uint32, fetch_texel_3d_rgba_uint32 }, { MESA_FORMAT_RGBA_SINT8, fetch_texel_1d_rgba_int8, fetch_texel_2d_rgba_int8, fetch_texel_3d_rgba_int8 }, { MESA_FORMAT_RGBA_SINT16, fetch_texel_1d_rgba_int16, fetch_texel_2d_rgba_int16, fetch_texel_3d_rgba_int16 }, { MESA_FORMAT_RGBA_SINT32, fetch_texel_1d_rgba_int32, fetch_texel_2d_rgba_int32, fetch_texel_3d_rgba_int32 }, { MESA_FORMAT_RGBX_UINT8, NULL, NULL, NULL }, { MESA_FORMAT_RGBX_UINT16, NULL, NULL, NULL }, { MESA_FORMAT_RGBX_UINT32, NULL, NULL, NULL }, { MESA_FORMAT_RGBX_SINT8, NULL, NULL, NULL }, { MESA_FORMAT_RGBX_SINT16, NULL, NULL, NULL }, { MESA_FORMAT_RGBX_SINT32, NULL, NULL, NULL }, /* DXT compressed formats */ { MESA_FORMAT_RGB_DXT1, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_RGBA_DXT1, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_RGBA_DXT3, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_RGBA_DXT5, fetch_compressed, fetch_compressed, fetch_compressed }, /* DXT sRGB compressed formats */ { MESA_FORMAT_SRGB_DXT1, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_SRGBA_DXT1, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_SRGBA_DXT3, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_SRGBA_DXT5, fetch_compressed, fetch_compressed, fetch_compressed }, /* FXT1 compressed formats */ { MESA_FORMAT_RGB_FXT1, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_RGBA_FXT1, fetch_compressed, fetch_compressed, fetch_compressed }, /* RGTC compressed formats */ { MESA_FORMAT_R_RGTC1_UNORM, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_R_RGTC1_SNORM, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_RG_RGTC2_UNORM, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_RG_RGTC2_SNORM, fetch_compressed, fetch_compressed, fetch_compressed }, /* LATC1/2 compressed formats */ { MESA_FORMAT_L_LATC1_UNORM, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_L_LATC1_SNORM, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_LA_LATC2_UNORM, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_LA_LATC2_SNORM, fetch_compressed, fetch_compressed, fetch_compressed }, /* ETC1/2 compressed formats */ { MESA_FORMAT_ETC1_RGB8, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_ETC2_RGB8, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_ETC2_SRGB8, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_ETC2_RGBA8_EAC, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_ETC2_R11_EAC, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_ETC2_RG11_EAC, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_ETC2_SIGNED_R11_EAC, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_ETC2_SIGNED_RG11_EAC, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1, fetch_compressed, fetch_compressed, fetch_compressed }, { MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1, fetch_compressed, fetch_compressed, fetch_compressed } }; /** * Initialize the texture image's FetchTexel methods. */ static void set_fetch_functions(const struct gl_sampler_object *samp, struct swrast_texture_image *texImage, GLuint dims) { mesa_format format = texImage->Base.TexFormat; #ifdef DEBUG /* check that the table entries are sorted by format name */ mesa_format fmt; for (fmt = 0; fmt < MESA_FORMAT_COUNT; fmt++) { assert(texfetch_funcs[fmt].Name == fmt); } #endif STATIC_ASSERT(Elements(texfetch_funcs) == MESA_FORMAT_COUNT); if (samp->sRGBDecode == GL_SKIP_DECODE_EXT && _mesa_get_format_color_encoding(format) == GL_SRGB) { format = _mesa_get_srgb_format_linear(format); } assert(format < MESA_FORMAT_COUNT); switch (dims) { case 1: texImage->FetchTexel = texfetch_funcs[format].Fetch1D; break; case 2: texImage->FetchTexel = texfetch_funcs[format].Fetch2D; break; case 3: texImage->FetchTexel = texfetch_funcs[format].Fetch3D; break; default: assert(!"Bad dims in set_fetch_functions()"); } texImage->FetchCompressedTexel = _mesa_get_compressed_fetch_func(format); ASSERT(texImage->FetchTexel); } void _mesa_update_fetch_functions(struct gl_context *ctx, GLuint unit) { struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current; struct gl_sampler_object *samp; GLuint face, i; GLuint dims; if (!texObj) return; samp = _mesa_get_samplerobj(ctx, unit); dims = _mesa_get_texture_dimensions(texObj->Target); for (face = 0; face < 6; face++) { for (i = 0; i < MAX_TEXTURE_LEVELS; i++) { if (texObj->Image[face][i]) { set_fetch_functions(samp, swrast_texture_image(texObj->Image[face][i]), dims); } } } }