| /* |
| * 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 |
| */ |
| |
| #include <format_unpack.h> |
| |
| #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 |
| |
| #define FETCH_Z(x, type, size) \ |
| static void \ |
| FETCH(x) (const struct swrast_texture_image *texImage, \ |
| GLint i, GLint j, GLint k, GLfloat *texel) \ |
| { \ |
| const type *src = TEXEL_ADDR(type, texImage, i, j, k, size); \ |
| _mesa_unpack_float_z_row(MESA_FORMAT_##x, 1, src, texel); \ |
| } |
| |
| #define FETCH_RGBA(x, type, size) \ |
| static void \ |
| FETCH(x) (const struct swrast_texture_image *texImage, \ |
| GLint i, GLint j, GLint k, GLfloat *texel) \ |
| { \ |
| const type *src = TEXEL_ADDR(type, texImage, i, j, k, size); \ |
| _mesa_unpack_rgba_row(MESA_FORMAT_##x, 1, src, (GLvoid *)texel); \ |
| } |
| |
| FETCH_Z(Z_UNORM32, GLuint, 1) |
| FETCH_Z(Z_UNORM16, GLushort, 1) |
| FETCH_Z(S8_UINT_Z24_UNORM, GLuint, 1) /* only return Z, not stencil data */ |
| FETCH_Z(Z24_UNORM_S8_UINT, GLuint, 1) /* only return Z, not stencil data */ |
| FETCH_Z(Z32_FLOAT_S8X24_UINT, GLfloat, 2) |
| |
| FETCH_RGBA(RGBA_FLOAT32, GLfloat, 4) |
| FETCH_RGBA(RGBA_FLOAT16, GLhalfARB, 4) |
| FETCH_RGBA(RGB_FLOAT32, GLfloat, 3) |
| FETCH_RGBA(RGB_FLOAT16, GLhalfARB, 3) |
| FETCH_RGBA(A_FLOAT32, GLfloat, 1) |
| FETCH_RGBA(A_FLOAT16, GLhalfARB, 1) |
| FETCH_RGBA(L_FLOAT32, GLfloat, 1) |
| FETCH_RGBA(L_FLOAT16, GLhalfARB, 1) |
| FETCH_RGBA(LA_FLOAT32, GLfloat, 2) |
| FETCH_RGBA(LA_FLOAT16, GLhalfARB, 2) |
| FETCH_RGBA(I_FLOAT32, GLfloat, 1) |
| FETCH_RGBA(I_FLOAT16, GLhalfARB, 1) |
| FETCH_RGBA(R_FLOAT32, GLfloat, 1) |
| FETCH_RGBA(R_FLOAT16, GLhalfARB, 1) |
| FETCH_RGBA(RG_FLOAT32, GLfloat, 2) |
| FETCH_RGBA(RG_FLOAT16, GLhalfARB, 2) |
| FETCH_RGBA(A8B8G8R8_UNORM, GLuint, 1) |
| FETCH_RGBA(R8G8B8A8_UNORM, GLuint, 1) |
| FETCH_RGBA(B8G8R8A8_UNORM, GLuint, 1) |
| FETCH_RGBA(A8R8G8B8_UNORM, GLuint, 1) |
| FETCH_RGBA(X8B8G8R8_UNORM, GLuint, 1) |
| FETCH_RGBA(R8G8B8X8_UNORM, GLuint, 1) |
| FETCH_RGBA(B8G8R8X8_UNORM, GLuint, 1) |
| FETCH_RGBA(X8R8G8B8_UNORM, GLuint, 1) |
| FETCH_RGBA(BGR_UNORM8, GLubyte, 3) |
| FETCH_RGBA(RGB_UNORM8, GLubyte, 3) |
| FETCH_RGBA(B5G6R5_UNORM, GLushort, 1) |
| FETCH_RGBA(R5G6B5_UNORM, GLushort, 1) |
| FETCH_RGBA(B4G4R4A4_UNORM, GLushort, 1) |
| FETCH_RGBA(A4R4G4B4_UNORM, GLushort, 1) |
| FETCH_RGBA(A1B5G5R5_UNORM, GLushort, 1) |
| FETCH_RGBA(B5G5R5A1_UNORM, GLushort, 1) |
| FETCH_RGBA(A1R5G5B5_UNORM, GLushort, 1) |
| FETCH_RGBA(B10G10R10A2_UNORM, GLuint, 1) |
| FETCH_RGBA(R10G10B10A2_UNORM, GLuint, 1) |
| FETCH_RGBA(RG_UNORM8, GLubyte, 2) |
| FETCH_RGBA(L4A4_UNORM, GLubyte, 1) |
| FETCH_RGBA(R_UNORM8, GLubyte, 1) |
| FETCH_RGBA(R_UNORM16, GLushort, 1) |
| FETCH_RGBA(LA_UNORM8, GLubyte, 2) |
| FETCH_RGBA(RG_UNORM16, GLushort, 2) |
| FETCH_RGBA(B2G3R3_UNORM, GLubyte, 1) |
| FETCH_RGBA(A_UNORM8, GLubyte, 1) |
| FETCH_RGBA(A_UNORM16, GLushort, 1) |
| FETCH_RGBA(L_UNORM8, GLubyte, 1) |
| FETCH_RGBA(L_UNORM16, GLushort, 1) |
| FETCH_RGBA(LA_UNORM16, GLushort, 2) |
| FETCH_RGBA(I_UNORM8, GLubyte, 1) |
| FETCH_RGBA(I_UNORM16, GLushort, 1) |
| FETCH_RGBA(BGR_SRGB8, GLubyte, 3) |
| FETCH_RGBA(A8B8G8R8_SRGB, GLuint, 1) |
| FETCH_RGBA(B8G8R8A8_SRGB, GLuint, 1) |
| FETCH_RGBA(A8R8G8B8_SRGB, GLuint, 1) |
| FETCH_RGBA(R8G8B8A8_SRGB, GLuint, 1) |
| FETCH_RGBA(R8G8B8X8_SRGB, GLuint, 1) |
| FETCH_RGBA(X8B8G8R8_SRGB, GLuint, 1) |
| FETCH_RGBA(R_SRGB8, GLubyte, 1) |
| FETCH_RGBA(L_SRGB8, GLubyte, 1) |
| FETCH_RGBA(LA_SRGB8, GLubyte, 2) |
| FETCH_RGBA(RGBA_SINT8, GLbyte, 4) |
| FETCH_RGBA(RGBA_SINT16, GLshort, 4) |
| FETCH_RGBA(RGBA_SINT32, GLint, 4) |
| FETCH_RGBA(RGBA_UINT16, GLushort, 4) |
| FETCH_RGBA(RGBA_UINT32, GLuint, 4) |
| FETCH_RGBA(R_SNORM8, GLbyte, 1) |
| FETCH_RGBA(A_SNORM8, GLbyte, 1) |
| FETCH_RGBA(L_SNORM8, GLbyte, 1) |
| FETCH_RGBA(I_SNORM8, GLbyte, 1) |
| FETCH_RGBA(LA_SNORM8, GLbyte, 2) |
| FETCH_RGBA(RG_SNORM8, GLbyte, 2) |
| FETCH_RGBA(X8B8G8R8_SNORM, GLint, 1) |
| FETCH_RGBA(A8B8G8R8_SNORM, GLint, 1) |
| FETCH_RGBA(R8G8B8A8_SNORM, GLint, 1) |
| FETCH_RGBA(R_SNORM16, GLshort, 1) |
| FETCH_RGBA(A_SNORM16, GLshort, 1) |
| FETCH_RGBA(L_SNORM16, GLshort, 1) |
| FETCH_RGBA(I_SNORM16, GLshort, 1) |
| FETCH_RGBA(RG_SNORM16, GLshort, 2) |
| FETCH_RGBA(LA_SNORM16, GLshort, 2) |
| FETCH_RGBA(RGB_SNORM16, GLshort, 3) |
| FETCH_RGBA(RGBA_SNORM16, GLshort, 4) |
| FETCH_RGBA(RGBA_UNORM16, GLushort, 4) |
| FETCH_RGBA(RGBX_UNORM16, GLushort, 4) |
| FETCH_RGBA(RGBX_FLOAT16, GLhalfARB, 4) |
| FETCH_RGBA(RGBX_FLOAT32, GLfloat, 4) |
| FETCH_RGBA(YCBCR, GLushort, 1) /* Fetch texel from 1D, 2D or 3D ycbcr texture, returning RGBA. */ |
| FETCH_RGBA(YCBCR_REV, GLushort, 1) /* Fetch texel from 1D, 2D or 3D ycbcr texture, returning RGBA. */ |
| FETCH_RGBA(R9G9B9E5_FLOAT, GLuint, 1) |
| FETCH_RGBA(R11G11B10_FLOAT, GLuint, 1) |
| |
| #undef TEXEL_ADDR |
| #undef DIM |
| #undef FETCH |
| #undef FETCH_Z |
| #undef FETCH_RGBA |
