src/mesa/swrast/s_texfetch_tmp.h

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   5  * Copyright (c) 2008-2009  VMware, Inc.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23  * OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26
  27 /**
  28  * \file texfetch_tmp.h
  29  * Texel fetch functions template.
  30  *
  31  * This template file is used by texfetch.c to generate texel fetch functions
  32  * for 1-D, 2-D and 3-D texture images.
  33  *
  34  * It should be expanded by defining \p DIM as the number texture dimensions
  35  * (1, 2 or 3).  According to the value of \p DIM a series of macros is defined
  36  * for the texel lookup in the gl_texture_image::Data.
  37  *
  38  * \author Gareth Hughes
  39  * \author Brian Paul
  40  */
  41
  42 #include <format_unpack.h>
  43
  44 #if DIM == 1
  45
  46 #define TEXEL_ADDR( type, image, i, j, k, size ) \
  47         ((void) (j), (void) (k), ((type *)(image)->ImageSlices[0] + (i) * (size)))
  48
  49 #define FETCH(x) fetch_texel_1d_##x
  50
  51 #elif DIM == 2
  52
  53 #define TEXEL_ADDR( type, image, i, j, k, size )                        \
  54        ((void) (k),                                                     \
  55         ((type *)((GLubyte *) (image)->ImageSlices[0] + (image)->RowStride * (j)) + \
  56           (i) * (size)))
  57
  58 #define FETCH(x) fetch_texel_2d_##x
  59
  60 #elif DIM == 3
  61
  62 #define TEXEL_ADDR( type, image, i, j, k, size )                        \
  63         ((type *)((GLubyte *) (image)->ImageSlices[k] +                      \
  64                   (image)->RowStride * (j)) + (i) * (size))
  65
  66 #define FETCH(x) fetch_texel_3d_##x
  67
  68 #else
  69 #error  illegal number of texture dimensions
  70 #endif
  71
  72 #define FETCH_Z(x, type, size)                       \
  73    static void \
  74    FETCH(x) (const struct swrast_texture_image *texImage, \
  75              GLint i, GLint j, GLint k, GLfloat *texel) \
  76    { \
  77             const type *src = TEXEL_ADDR(type, texImage, i, j, k, size); \
  78             _mesa_unpack_float_z_row(MESA_FORMAT_##x, 1, src, texel); \
  79    }
  80
  81 #define FETCH_RGBA(x, type, size)                    \
  82    static void \
  83    FETCH(x) (const struct swrast_texture_image *texImage, \
  84              GLint i, GLint j, GLint k, GLfloat *texel) \
  85    { \
  86             const type *src = TEXEL_ADDR(type, texImage, i, j, k, size); \
  87             _mesa_unpack_rgba_row(MESA_FORMAT_##x, 1, src, (GLvoid *)texel); \
  88    }
  89
  90 FETCH_Z(Z_UNORM32, GLuint, 1)
  91 FETCH_Z(Z_UNORM16, GLushort, 1)
  92 FETCH_Z(S8_UINT_Z24_UNORM, GLuint, 1) /* only return Z, not stencil data */
  93 FETCH_Z(Z24_UNORM_S8_UINT, GLuint, 1) /* only return Z, not stencil data */
  94 FETCH_Z(Z32_FLOAT_S8X24_UINT, GLfloat, 2)
  95
  96 FETCH_RGBA(RGBA_FLOAT32, GLfloat, 4)
  97 FETCH_RGBA(RGBA_FLOAT16, GLhalfARB, 4)
  98 FETCH_RGBA(RGB_FLOAT32, GLfloat, 3)
  99 FETCH_RGBA(RGB_FLOAT16, GLhalfARB, 3)
 100 FETCH_RGBA(A_FLOAT32, GLfloat, 1)
 101 FETCH_RGBA(A_FLOAT16, GLhalfARB, 1)
 102 FETCH_RGBA(L_FLOAT32, GLfloat, 1)
 103 FETCH_RGBA(L_FLOAT16, GLhalfARB, 1)
 104 FETCH_RGBA(LA_FLOAT32, GLfloat, 2)
 105 FETCH_RGBA(LA_FLOAT16, GLhalfARB, 2)
 106 FETCH_RGBA(I_FLOAT32, GLfloat, 1)
 107 FETCH_RGBA(I_FLOAT16, GLhalfARB, 1)
 108 FETCH_RGBA(R_FLOAT32, GLfloat, 1)
 109 FETCH_RGBA(R_FLOAT16, GLhalfARB, 1)
 110 FETCH_RGBA(RG_FLOAT32, GLfloat, 2)
 111 FETCH_RGBA(RG_FLOAT16, GLhalfARB, 2)
 112 FETCH_RGBA(A8B8G8R8_UNORM, GLuint, 1)
 113 FETCH_RGBA(R8G8B8A8_UNORM, GLuint, 1)
 114 FETCH_RGBA(B8G8R8A8_UNORM, GLuint, 1)
 115 FETCH_RGBA(A8R8G8B8_UNORM, GLuint, 1)
 116 FETCH_RGBA(X8B8G8R8_UNORM, GLuint, 1)
 117 FETCH_RGBA(R8G8B8X8_UNORM, GLuint, 1)
 118 FETCH_RGBA(B8G8R8X8_UNORM, GLuint, 1)
 119 FETCH_RGBA(X8R8G8B8_UNORM, GLuint, 1)
 120 FETCH_RGBA(BGR_UNORM8, GLubyte, 3)
 121 FETCH_RGBA(RGB_UNORM8, GLubyte, 3)
 122 FETCH_RGBA(B5G6R5_UNORM, GLushort, 1)
 123 FETCH_RGBA(R5G6B5_UNORM, GLushort, 1)
 124 FETCH_RGBA(B4G4R4A4_UNORM, GLushort, 1)
 125 FETCH_RGBA(A4R4G4B4_UNORM, GLushort, 1)
 126 FETCH_RGBA(A1B5G5R5_UNORM, GLushort, 1)
 127 FETCH_RGBA(B5G5R5A1_UNORM, GLushort, 1)
 128 FETCH_RGBA(A1R5G5B5_UNORM, GLushort, 1)
 129 FETCH_RGBA(B10G10R10A2_UNORM, GLuint, 1)
 130 FETCH_RGBA(R10G10B10A2_UNORM, GLuint, 1)
 131 FETCH_RGBA(RG_UNORM8, GLubyte, 2)
 132 FETCH_RGBA(L4A4_UNORM, GLubyte, 1)
 133 FETCH_RGBA(R_UNORM8, GLubyte, 1)
 134 FETCH_RGBA(R_UNORM16, GLushort, 1)
 135 FETCH_RGBA(LA_UNORM8, GLubyte, 2)
 136 FETCH_RGBA(RG_UNORM16, GLushort, 2)
 137 FETCH_RGBA(B2G3R3_UNORM, GLubyte, 1)
 138 FETCH_RGBA(A_UNORM8, GLubyte, 1)
 139 FETCH_RGBA(A_UNORM16, GLushort, 1)
 140 FETCH_RGBA(L_UNORM8, GLubyte, 1)
 141 FETCH_RGBA(L_UNORM16, GLushort, 1)
 142 FETCH_RGBA(LA_UNORM16, GLushort, 2)
 143 FETCH_RGBA(I_UNORM8, GLubyte, 1)
 144 FETCH_RGBA(I_UNORM16, GLushort, 1)
 145 FETCH_RGBA(BGR_SRGB8, GLubyte, 3)
 146 FETCH_RGBA(A8B8G8R8_SRGB, GLuint, 1)
 147 FETCH_RGBA(B8G8R8A8_SRGB, GLuint, 1)
 148 FETCH_RGBA(A8R8G8B8_SRGB, GLuint, 1)
 149 FETCH_RGBA(R8G8B8A8_SRGB, GLuint, 1)
 150 FETCH_RGBA(R8G8B8X8_SRGB, GLuint, 1)
 151 FETCH_RGBA(X8B8G8R8_SRGB, GLuint, 1)
 152 FETCH_RGBA(R_SRGB8, GLubyte, 1)
 153 FETCH_RGBA(L_SRGB8, GLubyte, 1)
 154 FETCH_RGBA(LA_SRGB8, GLubyte, 2)
 155 FETCH_RGBA(RGBA_SINT8, GLbyte, 4)
 156 FETCH_RGBA(RGBA_SINT16, GLshort, 4)
 157 FETCH_RGBA(RGBA_SINT32, GLint, 4)
 158 FETCH_RGBA(RGBA_UINT16, GLushort, 4)
 159 FETCH_RGBA(RGBA_UINT32, GLuint, 4)
 160 FETCH_RGBA(R_SNORM8, GLbyte, 1)
 161 FETCH_RGBA(A_SNORM8, GLbyte, 1)
 162 FETCH_RGBA(L_SNORM8, GLbyte, 1)
 163 FETCH_RGBA(I_SNORM8, GLbyte, 1)
 164 FETCH_RGBA(LA_SNORM8, GLbyte, 2)
 165 FETCH_RGBA(RG_SNORM8, GLbyte, 2)
 166 FETCH_RGBA(X8B8G8R8_SNORM, GLint, 1)
 167 FETCH_RGBA(A8B8G8R8_SNORM, GLint, 1)
 168 FETCH_RGBA(R8G8B8A8_SNORM, GLint, 1)
 169 FETCH_RGBA(R_SNORM16, GLshort, 1)
 170 FETCH_RGBA(A_SNORM16, GLshort, 1)
 171 FETCH_RGBA(L_SNORM16, GLshort, 1)
 172 FETCH_RGBA(I_SNORM16, GLshort, 1)
 173 FETCH_RGBA(RG_SNORM16, GLshort, 2)
 174 FETCH_RGBA(LA_SNORM16, GLshort, 2)
 175 FETCH_RGBA(RGB_SNORM16, GLshort, 3)
 176 FETCH_RGBA(RGBA_SNORM16, GLshort, 4)
 177 FETCH_RGBA(RGBA_UNORM16, GLushort, 4)
 178 FETCH_RGBA(RGBX_UNORM16, GLushort, 4)
 179 FETCH_RGBA(RGBX_FLOAT16, GLhalfARB, 4)
 180 FETCH_RGBA(RGBX_FLOAT32, GLfloat, 4)
 181 FETCH_RGBA(YCBCR, GLushort, 1) /* Fetch texel from 1D, 2D or 3D ycbcr texture, returning RGBA. */
 182 FETCH_RGBA(YCBCR_REV, GLushort, 1) /* Fetch texel from 1D, 2D or 3D ycbcr texture, returning RGBA. */
 183 FETCH_RGBA(R9G9B9E5_FLOAT, GLuint, 1)
 184 FETCH_RGBA(R11G11B10_FLOAT, GLuint, 1)
 185
 186 #undef TEXEL_ADDR
 187 #undef DIM
 188 #undef FETCH
 189 #undef FETCH_Z
 190 #undef FETCH_RGBA