| /* |
| * 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/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 "util/format_rgb9e5.h" |
| #include "util/format_r11g11b10f.h" |
| #include "util/format_srgb.h" |
| |
| |
| /* 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!"); |
| } |
| |
| |
| #define FETCH_FUNCS(NAME) \ |
| { \ |
| MESA_FORMAT_ ## NAME, \ |
| fetch_texel_1d_ ## NAME, \ |
| fetch_texel_2d_ ## NAME, \ |
| fetch_texel_3d_ ## NAME, \ |
| } |
| |
| #define FETCH_NULL(NAME) \ |
| { \ |
| MESA_FORMAT_ ## NAME, \ |
| NULL, \ |
| NULL, \ |
| NULL \ |
| } |
| |
| #define FETCH_COMPRESSED(NAME) \ |
| { \ |
| MESA_FORMAT_ ## NAME, \ |
| fetch_compressed, \ |
| fetch_compressed, \ |
| fetch_compressed \ |
| } |
| |
| /** |
| * Table to map MESA_FORMAT_ to texel fetch/store funcs. |
| */ |
| 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 */ |
| FETCH_FUNCS(A8B8G8R8_UNORM), |
| FETCH_FUNCS(X8B8G8R8_UNORM), |
| FETCH_FUNCS(R8G8B8A8_UNORM), |
| FETCH_FUNCS(R8G8B8X8_UNORM), |
| FETCH_FUNCS(B8G8R8A8_UNORM), |
| FETCH_FUNCS(B8G8R8X8_UNORM), |
| FETCH_FUNCS(A8R8G8B8_UNORM), |
| FETCH_FUNCS(X8R8G8B8_UNORM), |
| FETCH_FUNCS(L16A16_UNORM), |
| FETCH_FUNCS(A16L16_UNORM), |
| FETCH_FUNCS(B5G6R5_UNORM), |
| FETCH_FUNCS(R5G6B5_UNORM), |
| FETCH_FUNCS(B4G4R4A4_UNORM), |
| FETCH_NULL(B4G4R4X4_UNORM), |
| FETCH_FUNCS(A4R4G4B4_UNORM), |
| FETCH_FUNCS(A1B5G5R5_UNORM), |
| FETCH_FUNCS(B5G5R5A1_UNORM), |
| FETCH_NULL(B5G5R5X1_UNORM), |
| FETCH_FUNCS(A1R5G5B5_UNORM), |
| FETCH_FUNCS(L8A8_UNORM), |
| FETCH_FUNCS(A8L8_UNORM), |
| FETCH_FUNCS(R8G8_UNORM), |
| FETCH_FUNCS(G8R8_UNORM), |
| FETCH_FUNCS(L4A4_UNORM), |
| FETCH_FUNCS(B2G3R3_UNORM), |
| FETCH_FUNCS(R16G16_UNORM), |
| FETCH_FUNCS(G16R16_UNORM), |
| FETCH_FUNCS(B10G10R10A2_UNORM), |
| FETCH_NULL(B10G10R10X2_UNORM), |
| FETCH_FUNCS(R10G10B10A2_UNORM), |
| FETCH_NULL(R10G10B10X2_UNORM), |
| |
| FETCH_FUNCS(S8_UINT_Z24_UNORM), |
| { |
| MESA_FORMAT_X8_UINT_Z24_UNORM, |
| fetch_texel_1d_S8_UINT_Z24_UNORM, |
| fetch_texel_2d_S8_UINT_Z24_UNORM, |
| fetch_texel_3d_S8_UINT_Z24_UNORM |
| }, |
| FETCH_FUNCS(Z24_UNORM_S8_UINT), |
| { |
| MESA_FORMAT_Z24_UNORM_X8_UINT, |
| fetch_texel_1d_Z24_UNORM_S8_UINT, |
| fetch_texel_2d_Z24_UNORM_S8_UINT, |
| fetch_texel_3d_Z24_UNORM_S8_UINT |
| }, |
| FETCH_NULL(R3G3B2_UNORM), |
| FETCH_NULL(A4B4G4R4_UNORM), |
| FETCH_NULL(R4G4B4A4_UNORM), |
| FETCH_NULL(R5G5B5A1_UNORM), |
| FETCH_NULL(A2B10G10R10_UNORM), |
| FETCH_NULL(A2R10G10B10_UNORM), |
| |
| FETCH_FUNCS(YCBCR), |
| FETCH_FUNCS(YCBCR_REV), |
| |
| /* Array unorm formats */ |
| FETCH_FUNCS(A_UNORM8), |
| FETCH_FUNCS(A_UNORM16), |
| FETCH_FUNCS(L_UNORM8), |
| FETCH_FUNCS(L_UNORM16), |
| FETCH_FUNCS(I_UNORM8), |
| FETCH_FUNCS(I_UNORM16), |
| FETCH_FUNCS(R_UNORM8), |
| FETCH_FUNCS(R_UNORM16), |
| FETCH_FUNCS(BGR_UNORM8), |
| FETCH_FUNCS(RGB_UNORM8), |
| FETCH_FUNCS(RGBA_UNORM16), |
| FETCH_FUNCS(RGBX_UNORM16), |
| FETCH_FUNCS(Z_UNORM16), |
| FETCH_FUNCS(Z_UNORM32), |
| FETCH_NULL(S_UINT8), |
| |
| /* Packed signed/normalized formats */ |
| FETCH_FUNCS(A8B8G8R8_SNORM), |
| FETCH_FUNCS(X8B8G8R8_SNORM), |
| FETCH_FUNCS(R8G8B8A8_SNORM), |
| FETCH_NULL(R8G8B8X8_SNORM), |
| FETCH_FUNCS(R16G16_SNORM), |
| FETCH_NULL(G16R16_SNORM), |
| FETCH_FUNCS(R8G8_SNORM), |
| FETCH_NULL(G8R8_SNORM), |
| FETCH_FUNCS(L8A8_SNORM), |
| FETCH_FUNCS(A8L8_SNORM), |
| |
| /* Array signed/normalized formats */ |
| FETCH_FUNCS(A_SNORM8), |
| FETCH_FUNCS(A_SNORM16), |
| FETCH_FUNCS(L_SNORM8), |
| FETCH_FUNCS(L_SNORM16), |
| FETCH_FUNCS(I_SNORM8), |
| FETCH_FUNCS(I_SNORM16), |
| FETCH_FUNCS(R_SNORM8), |
| FETCH_FUNCS(R_SNORM16), |
| FETCH_FUNCS(LA_SNORM16), |
| FETCH_FUNCS(RGB_SNORM16), |
| FETCH_FUNCS(RGBA_SNORM16), |
| FETCH_NULL(RGBX_SNORM16), |
| |
| /* Packed sRGB formats */ |
| FETCH_FUNCS(A8B8G8R8_SRGB), |
| FETCH_FUNCS(B8G8R8A8_SRGB), |
| FETCH_FUNCS(A8R8G8B8_SRGB), |
| FETCH_NULL(B8G8R8X8_SRGB), |
| FETCH_NULL(X8R8G8B8_SRGB), |
| FETCH_FUNCS(R8G8B8A8_SRGB), |
| FETCH_FUNCS(R8G8B8X8_SRGB), |
| FETCH_FUNCS(X8B8G8R8_SRGB), |
| FETCH_FUNCS(L8A8_SRGB), |
| FETCH_FUNCS(A8L8_SRGB), |
| |
| /* Array sRGB formats */ |
| FETCH_FUNCS(L_SRGB8), |
| FETCH_FUNCS(BGR_SRGB8), |
| |
| /* Packed float formats */ |
| FETCH_FUNCS(R9G9B9E5_FLOAT), |
| FETCH_FUNCS(R11G11B10_FLOAT), |
| FETCH_FUNCS(Z32_FLOAT_S8X24_UINT), |
| |
| /* Array float formats */ |
| FETCH_FUNCS(A_FLOAT16), |
| FETCH_FUNCS(A_FLOAT32), |
| FETCH_FUNCS(L_FLOAT16), |
| FETCH_FUNCS(L_FLOAT32), |
| FETCH_FUNCS(LA_FLOAT16), |
| FETCH_FUNCS(LA_FLOAT32), |
| FETCH_FUNCS(I_FLOAT16), |
| FETCH_FUNCS(I_FLOAT32), |
| FETCH_FUNCS(R_FLOAT16), |
| FETCH_FUNCS(R_FLOAT32), |
| FETCH_FUNCS(RG_FLOAT16), |
| FETCH_FUNCS(RG_FLOAT32), |
| FETCH_FUNCS(RGB_FLOAT16), |
| FETCH_FUNCS(RGB_FLOAT32), |
| FETCH_FUNCS(RGBA_FLOAT16), |
| FETCH_FUNCS(RGBA_FLOAT32), |
| FETCH_FUNCS(RGBX_FLOAT16), |
| FETCH_FUNCS(RGBX_FLOAT32), |
| { |
| MESA_FORMAT_Z_FLOAT32, |
| fetch_texel_1d_R_FLOAT32, /* Reuse the R32F functions. */ |
| fetch_texel_2d_R_FLOAT32, |
| fetch_texel_3d_R_FLOAT32 |
| }, |
| |
| /* Packed signed/unsigned non-normalized integer formats */ |
| FETCH_NULL(A8B8G8R8_UINT), |
| FETCH_NULL(A8R8G8B8_UINT), |
| FETCH_NULL(R8G8B8A8_UINT), |
| FETCH_NULL(B8G8R8A8_UINT), |
| FETCH_NULL(B10G10R10A2_UINT), |
| FETCH_NULL(R10G10B10A2_UINT), |
| FETCH_NULL(A2B10G10R10_UINT), |
| FETCH_NULL(A2R10G10B10_UINT), |
| FETCH_NULL(B5G6R5_UINT), |
| FETCH_NULL(R5G6B5_UINT), |
| FETCH_NULL(B2G3R3_UINT), |
| FETCH_NULL(R3G3B2_UINT), |
| FETCH_NULL(A4B4G4R4_UINT), |
| FETCH_NULL(R4G4B4A4_UINT), |
| FETCH_NULL(B4G4R4A4_UINT), |
| FETCH_NULL(A4R4G4B4_UINT), |
| FETCH_NULL(A1B5G5R5_UINT), |
| FETCH_NULL(B5G5R5A1_UINT), |
| FETCH_NULL(A1R5G5B5_UINT), |
| FETCH_NULL(R5G5B5A1_UINT), |
| |
| /* Array signed/unsigned non-normalized integer formats */ |
| FETCH_NULL(A_UINT8), |
| FETCH_NULL(A_UINT16), |
| FETCH_NULL(A_UINT32), |
| FETCH_NULL(A_SINT8), |
| FETCH_NULL(A_SINT16), |
| FETCH_NULL(A_SINT32), |
| FETCH_NULL(I_UINT8), |
| FETCH_NULL(I_UINT16), |
| FETCH_NULL(I_UINT32), |
| FETCH_NULL(I_SINT8), |
| FETCH_NULL(I_SINT16), |
| FETCH_NULL(I_SINT32), |
| FETCH_NULL(L_UINT8), |
| FETCH_NULL(L_UINT16), |
| FETCH_NULL(L_UINT32), |
| FETCH_NULL(L_SINT8), |
| FETCH_NULL(L_SINT16), |
| FETCH_NULL(L_SINT32), |
| FETCH_NULL(LA_UINT8), |
| FETCH_NULL(LA_UINT16), |
| FETCH_NULL(LA_UINT32), |
| FETCH_NULL(LA_SINT8), |
| FETCH_NULL(LA_SINT16), |
| FETCH_NULL(LA_SINT32), |
| FETCH_NULL(R_UINT8), |
| FETCH_NULL(R_UINT16), |
| FETCH_NULL(R_UINT32), |
| FETCH_NULL(R_SINT8), |
| FETCH_NULL(R_SINT16), |
| FETCH_NULL(R_SINT32), |
| FETCH_NULL(RG_UINT8), |
| FETCH_NULL(RG_UINT16), |
| FETCH_NULL(RG_UINT32), |
| FETCH_NULL(RG_SINT8), |
| FETCH_NULL(RG_SINT16), |
| FETCH_NULL(RG_SINT32), |
| FETCH_NULL(RGB_UINT8), |
| FETCH_NULL(RGB_UINT16), |
| FETCH_NULL(RGB_UINT32), |
| FETCH_NULL(RGB_SINT8), |
| FETCH_NULL(RGB_SINT16), |
| FETCH_NULL(RGB_SINT32), |
| FETCH_FUNCS(RGBA_UINT8), |
| FETCH_FUNCS(RGBA_UINT16), |
| FETCH_FUNCS(RGBA_UINT32), |
| FETCH_FUNCS(RGBA_SINT8), |
| FETCH_FUNCS(RGBA_SINT16), |
| FETCH_FUNCS(RGBA_SINT32), |
| FETCH_NULL(RGBX_UINT8), |
| FETCH_NULL(RGBX_UINT16), |
| FETCH_NULL(RGBX_UINT32), |
| FETCH_NULL(RGBX_SINT8), |
| FETCH_NULL(RGBX_SINT16), |
| FETCH_NULL(RGBX_SINT32), |
| |
| /* DXT compressed formats */ |
| FETCH_COMPRESSED(RGB_DXT1), |
| FETCH_COMPRESSED(RGBA_DXT1), |
| FETCH_COMPRESSED(RGBA_DXT3), |
| FETCH_COMPRESSED(RGBA_DXT5), |
| |
| /* DXT sRGB compressed formats */ |
| FETCH_COMPRESSED(SRGB_DXT1), |
| FETCH_COMPRESSED(SRGBA_DXT1), |
| FETCH_COMPRESSED(SRGBA_DXT3), |
| FETCH_COMPRESSED(SRGBA_DXT5), |
| |
| /* FXT1 compressed formats */ |
| FETCH_COMPRESSED(RGB_FXT1), |
| FETCH_COMPRESSED(RGBA_FXT1), |
| |
| /* RGTC compressed formats */ |
| FETCH_COMPRESSED(R_RGTC1_UNORM), |
| FETCH_COMPRESSED(R_RGTC1_SNORM), |
| FETCH_COMPRESSED(RG_RGTC2_UNORM), |
| FETCH_COMPRESSED(RG_RGTC2_SNORM), |
| |
| /* LATC1/2 compressed formats */ |
| FETCH_COMPRESSED(L_LATC1_UNORM), |
| FETCH_COMPRESSED(L_LATC1_SNORM), |
| FETCH_COMPRESSED(LA_LATC2_UNORM), |
| FETCH_COMPRESSED(LA_LATC2_SNORM), |
| |
| /* ETC1/2 compressed formats */ |
| FETCH_COMPRESSED(ETC1_RGB8), |
| FETCH_COMPRESSED(ETC2_RGB8), |
| FETCH_COMPRESSED(ETC2_SRGB8), |
| FETCH_COMPRESSED(ETC2_RGBA8_EAC), |
| FETCH_COMPRESSED(ETC2_SRGB8_ALPHA8_EAC), |
| FETCH_COMPRESSED(ETC2_R11_EAC), |
| FETCH_COMPRESSED(ETC2_RG11_EAC), |
| FETCH_COMPRESSED(ETC2_SIGNED_R11_EAC), |
| FETCH_COMPRESSED(ETC2_SIGNED_RG11_EAC), |
| FETCH_COMPRESSED(ETC2_RGB8_PUNCHTHROUGH_ALPHA1), |
| FETCH_COMPRESSED(ETC2_SRGB8_PUNCHTHROUGH_ALPHA1), |
| FETCH_COMPRESSED(BPTC_RGBA_UNORM), |
| FETCH_COMPRESSED(BPTC_SRGB_ALPHA_UNORM), |
| FETCH_COMPRESSED(BPTC_RGB_SIGNED_FLOAT), |
| FETCH_COMPRESSED(BPTC_RGB_UNSIGNED_FLOAT), |
| |
| /* ASTC compressed formats */ |
| FETCH_NULL(RGBA_ASTC_4x4), |
| FETCH_NULL(RGBA_ASTC_5x4), |
| FETCH_NULL(RGBA_ASTC_5x5), |
| FETCH_NULL(RGBA_ASTC_6x5), |
| FETCH_NULL(RGBA_ASTC_6x6), |
| FETCH_NULL(RGBA_ASTC_8x5), |
| FETCH_NULL(RGBA_ASTC_8x6), |
| FETCH_NULL(RGBA_ASTC_8x8), |
| FETCH_NULL(RGBA_ASTC_10x5), |
| FETCH_NULL(RGBA_ASTC_10x6), |
| FETCH_NULL(RGBA_ASTC_10x8), |
| FETCH_NULL(RGBA_ASTC_10x10), |
| FETCH_NULL(RGBA_ASTC_12x10), |
| FETCH_NULL(RGBA_ASTC_12x12), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_4x4), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_5x4), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_5x5), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_6x5), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_6x6), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_8x5), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_8x6), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_8x8), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_10x5), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_10x6), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_10x8), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_10x10), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_12x10), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_12x12), |
| |
| FETCH_NULL(RGBA_ASTC_3x3x3), |
| FETCH_NULL(RGBA_ASTC_4x3x3), |
| FETCH_NULL(RGBA_ASTC_4x4x3), |
| FETCH_NULL(RGBA_ASTC_4x4x4), |
| FETCH_NULL(RGBA_ASTC_5x4x4), |
| FETCH_NULL(RGBA_ASTC_5x5x4), |
| FETCH_NULL(RGBA_ASTC_5x5x5), |
| FETCH_NULL(RGBA_ASTC_6x5x5), |
| FETCH_NULL(RGBA_ASTC_6x6x5), |
| FETCH_NULL(RGBA_ASTC_6x6x6), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_3x3x3), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_4x3x3), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_4x4x3), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_4x4x4), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_5x4x4), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_5x5x4), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_5x5x5), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_6x5x5), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_6x6x5), |
| FETCH_NULL(SRGB8_ALPHA8_ASTC_6x6x6) |
| }; |
| |
| |
| /** |
| * 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(ARRAY_SIZE(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); |
| } |
| } |
| } |
| } |
