2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (c) 2008-2009 VMware, Inc.
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:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
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.
28 * \file texfetch_tmp.h
29 * Texel fetch functions template.
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.
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.
38 * \author Gareth Hughes
42 #include <format_unpack.h>
46 #define TEXEL_ADDR( type, image, i, j, k, size ) \
47 ((void) (j), (void) (k), ((type *)(image)->ImageSlices[0] + (i) * (size)))
49 #define FETCH(x) fetch_texel_1d_##x
53 #define TEXEL_ADDR( type, image, i, j, k, size ) \
55 ((type *)((GLubyte *) (image)->ImageSlices[0] + (image)->RowStride * (j)) + \
58 #define FETCH(x) fetch_texel_2d_##x
62 #define TEXEL_ADDR( type, image, i, j, k, size ) \
63 ((type *)((GLubyte *) (image)->ImageSlices[k] + \
64 (image)->RowStride * (j)) + (i) * (size))
66 #define FETCH(x) fetch_texel_3d_##x
69 #error illegal number of texture dimensions
72 #define FETCH_Z(x, type, size) \
74 FETCH(x) (const struct swrast_texture_image *texImage, \
75 GLint i, GLint j, GLint k, GLfloat *texel) \
77 const type *src = TEXEL_ADDR(type, texImage, i, j, k, size); \
78 _mesa_unpack_float_z_row(MESA_FORMAT_##x, 1, src, texel); \
81 #define FETCH_RGBA(x, type, size) \
83 FETCH(x) (const struct swrast_texture_image *texImage, \
84 GLint i, GLint j, GLint k, GLfloat *texel) \
86 const type *src = TEXEL_ADDR(type, texImage, i, j, k, size); \
87 _mesa_unpack_rgba_row(MESA_FORMAT_##x, 1, src, (GLvoid *)texel); \
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)
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(R8G8_UNORM
, GLushort
, 1)
132 FETCH_RGBA(G8R8_UNORM
, GLushort
, 1)
133 FETCH_RGBA(L4A4_UNORM
, GLubyte
, 1)
134 FETCH_RGBA(R_UNORM8
, GLubyte
, 1)
135 FETCH_RGBA(R_UNORM16
, GLushort
, 1)
136 FETCH_RGBA(LA_UNORM8
, GLubyte
, 2)
137 FETCH_RGBA(R16G16_UNORM
, GLuint
, 1)
138 FETCH_RGBA(G16R16_UNORM
, GLuint
, 1)
139 FETCH_RGBA(B2G3R3_UNORM
, GLubyte
, 1)
140 FETCH_RGBA(A_UNORM8
, GLubyte
, 1)
141 FETCH_RGBA(A_UNORM16
, GLushort
, 1)
142 FETCH_RGBA(L_UNORM8
, GLubyte
, 1)
143 FETCH_RGBA(L_UNORM16
, GLushort
, 1)
144 FETCH_RGBA(LA_UNORM16
, GLushort
, 2)
145 FETCH_RGBA(I_UNORM8
, GLubyte
, 1)
146 FETCH_RGBA(I_UNORM16
, GLushort
, 1)
147 FETCH_RGBA(BGR_SRGB8
, GLubyte
, 3)
148 FETCH_RGBA(A8B8G8R8_SRGB
, GLuint
, 1)
149 FETCH_RGBA(B8G8R8A8_SRGB
, GLuint
, 1)
150 FETCH_RGBA(A8R8G8B8_SRGB
, GLuint
, 1)
151 FETCH_RGBA(R8G8B8A8_SRGB
, GLuint
, 1)
152 FETCH_RGBA(R8G8B8X8_SRGB
, GLuint
, 1)
153 FETCH_RGBA(X8B8G8R8_SRGB
, GLuint
, 1)
154 FETCH_RGBA(R_SRGB8
, GLubyte
, 1)
155 FETCH_RGBA(L_SRGB8
, GLubyte
, 1)
156 FETCH_RGBA(LA_SRGB8
, GLubyte
, 2)
157 FETCH_RGBA(RGBA_SINT8
, GLbyte
, 4)
158 FETCH_RGBA(RGBA_SINT16
, GLshort
, 4)
159 FETCH_RGBA(RGBA_SINT32
, GLint
, 4)
160 FETCH_RGBA(RGBA_UINT8
, GLubyte
, 4)
161 FETCH_RGBA(RGBA_UINT16
, GLushort
, 4)
162 FETCH_RGBA(RGBA_UINT32
, GLuint
, 4)
163 FETCH_RGBA(R_SNORM8
, GLbyte
, 1)
164 FETCH_RGBA(A_SNORM8
, GLbyte
, 1)
165 FETCH_RGBA(L_SNORM8
, GLbyte
, 1)
166 FETCH_RGBA(I_SNORM8
, GLbyte
, 1)
167 FETCH_RGBA(R8G8_SNORM
, GLshort
, 1)
168 FETCH_RGBA(LA_SNORM8
, GLbyte
, 2)
169 FETCH_RGBA(X8B8G8R8_SNORM
, GLint
, 1)
170 FETCH_RGBA(A8B8G8R8_SNORM
, GLint
, 1)
171 FETCH_RGBA(R8G8B8A8_SNORM
, GLint
, 1)
172 FETCH_RGBA(R_SNORM16
, GLshort
, 1)
173 FETCH_RGBA(A_SNORM16
, GLshort
, 1)
174 FETCH_RGBA(L_SNORM16
, GLshort
, 1)
175 FETCH_RGBA(I_SNORM16
, GLshort
, 1)
176 FETCH_RGBA(R16G16_SNORM
, GLshort
, 2)
177 FETCH_RGBA(LA_SNORM16
, GLshort
, 2)
178 FETCH_RGBA(RGB_SNORM16
, GLshort
, 3)
179 FETCH_RGBA(RGBA_SNORM16
, GLshort
, 4)
180 FETCH_RGBA(RGBA_UNORM16
, GLushort
, 4)
181 FETCH_RGBA(RGBX_UNORM16
, GLushort
, 4)
182 FETCH_RGBA(RGBX_FLOAT16
, GLhalfARB
, 4)
183 FETCH_RGBA(RGBX_FLOAT32
, GLfloat
, 4)
184 FETCH_RGBA(YCBCR
, GLushort
, 1) /* Fetch texel from 1D, 2D or 3D ycbcr texture, returning RGBA. */
185 FETCH_RGBA(YCBCR_REV
, GLushort
, 1) /* Fetch texel from 1D, 2D or 3D ycbcr texture, returning RGBA. */
186 FETCH_RGBA(R9G9B9E5_FLOAT
, GLuint
, 1)
187 FETCH_RGBA(R11G11B10_FLOAT
, GLuint
, 1)