| 1 | /* |
| 2 | * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) |
| 3 | * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 6 | * copy of this software and associated documentation files (the "Software"), |
| 7 | * to deal in the Software without restriction, including without limitation |
| 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
| 10 | * Software is furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice including the dates of first publication and |
| 13 | * either this permission notice or a reference to |
| 14 | * http://oss.sgi.com/projects/FreeB/ |
| 15 | * shall be included 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 | * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 21 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF |
| 22 | * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 23 | * SOFTWARE. |
| 24 | * |
| 25 | * Except as contained in this notice, the name of Silicon Graphics, Inc. |
| 26 | * shall not be used in advertising or otherwise to promote the sale, use or |
| 27 | * other dealings in this Software without prior written authorization from |
| 28 | * Silicon Graphics, Inc. |
| 29 | */ |
| 30 | |
| 31 | #ifdef HAVE_DIX_CONFIG_H |
| 32 | #include <dix-config.h> |
| 33 | #endif |
| 34 | |
| 35 | #include <GL/gl.h> |
| 36 | #include "glxserver.h" |
| 37 | #include "singlesize.h" |
| 38 | #include "indirect_size_get.h" |
| 39 | |
| 40 | /* |
| 41 | ** These routines compute the size of variable-size returned parameters. |
| 42 | ** Unlike the similar routines that do the same thing for variable-size |
| 43 | ** incoming parameters, the samplegl library itself doesn't use these routines. |
| 44 | ** Hence, they are located here, in the GLX extension library. |
| 45 | */ |
| 46 | |
| 47 | GLint |
| 48 | __glReadPixels_size(GLenum format, GLenum type, GLint w, GLint h) |
| 49 | { |
| 50 | return __glXImageSize(format, type, 0, w, h, 1, 0, 0, 0, 0, 4); |
| 51 | } |
| 52 | |
| 53 | GLint |
| 54 | __glGetMap_size(GLenum target, GLenum query) |
| 55 | { |
| 56 | GLint k, order = 0, majorMinor[2]; |
| 57 | |
| 58 | /* |
| 59 | ** Assume target and query are both valid. |
| 60 | */ |
| 61 | switch (target) { |
| 62 | case GL_MAP1_COLOR_4: |
| 63 | case GL_MAP1_NORMAL: |
| 64 | case GL_MAP1_INDEX: |
| 65 | case GL_MAP1_TEXTURE_COORD_1: |
| 66 | case GL_MAP1_TEXTURE_COORD_2: |
| 67 | case GL_MAP1_TEXTURE_COORD_3: |
| 68 | case GL_MAP1_TEXTURE_COORD_4: |
| 69 | case GL_MAP1_VERTEX_3: |
| 70 | case GL_MAP1_VERTEX_4: |
| 71 | switch (query) { |
| 72 | case GL_COEFF: |
| 73 | k = __glMap1d_size(target); |
| 74 | glGetMapiv(target, GL_ORDER, &order); |
| 75 | /* |
| 76 | ** The query above might fail, but then order will be zero anyway. |
| 77 | */ |
| 78 | return order * k; |
| 79 | case GL_DOMAIN: |
| 80 | return 2; |
| 81 | case GL_ORDER: |
| 82 | return 1; |
| 83 | } |
| 84 | break; |
| 85 | case GL_MAP2_COLOR_4: |
| 86 | case GL_MAP2_NORMAL: |
| 87 | case GL_MAP2_INDEX: |
| 88 | case GL_MAP2_TEXTURE_COORD_1: |
| 89 | case GL_MAP2_TEXTURE_COORD_2: |
| 90 | case GL_MAP2_TEXTURE_COORD_3: |
| 91 | case GL_MAP2_TEXTURE_COORD_4: |
| 92 | case GL_MAP2_VERTEX_3: |
| 93 | case GL_MAP2_VERTEX_4: |
| 94 | switch (query) { |
| 95 | case GL_COEFF: |
| 96 | k = __glMap2d_size(target); |
| 97 | majorMinor[0] = majorMinor[1] = 0; |
| 98 | glGetMapiv(target, GL_ORDER, majorMinor); |
| 99 | /* |
| 100 | ** The query above might fail, but then majorMinor will be zeroes |
| 101 | */ |
| 102 | return majorMinor[0] * majorMinor[1] * k; |
| 103 | case GL_DOMAIN: |
| 104 | return 4; |
| 105 | case GL_ORDER: |
| 106 | return 2; |
| 107 | } |
| 108 | break; |
| 109 | } |
| 110 | return -1; |
| 111 | } |
| 112 | |
| 113 | GLint |
| 114 | __glGetMapdv_size(GLenum target, GLenum query) |
| 115 | { |
| 116 | return __glGetMap_size(target, query); |
| 117 | } |
| 118 | |
| 119 | GLint |
| 120 | __glGetMapfv_size(GLenum target, GLenum query) |
| 121 | { |
| 122 | return __glGetMap_size(target, query); |
| 123 | } |
| 124 | |
| 125 | GLint |
| 126 | __glGetMapiv_size(GLenum target, GLenum query) |
| 127 | { |
| 128 | return __glGetMap_size(target, query); |
| 129 | } |
| 130 | |
| 131 | GLint |
| 132 | __glGetPixelMap_size(GLenum map) |
| 133 | { |
| 134 | GLint size; |
| 135 | GLenum query; |
| 136 | |
| 137 | switch (map) { |
| 138 | case GL_PIXEL_MAP_I_TO_I: |
| 139 | query = GL_PIXEL_MAP_I_TO_I_SIZE; |
| 140 | break; |
| 141 | case GL_PIXEL_MAP_S_TO_S: |
| 142 | query = GL_PIXEL_MAP_S_TO_S_SIZE; |
| 143 | break; |
| 144 | case GL_PIXEL_MAP_I_TO_R: |
| 145 | query = GL_PIXEL_MAP_I_TO_R_SIZE; |
| 146 | break; |
| 147 | case GL_PIXEL_MAP_I_TO_G: |
| 148 | query = GL_PIXEL_MAP_I_TO_G_SIZE; |
| 149 | break; |
| 150 | case GL_PIXEL_MAP_I_TO_B: |
| 151 | query = GL_PIXEL_MAP_I_TO_B_SIZE; |
| 152 | break; |
| 153 | case GL_PIXEL_MAP_I_TO_A: |
| 154 | query = GL_PIXEL_MAP_I_TO_A_SIZE; |
| 155 | break; |
| 156 | case GL_PIXEL_MAP_R_TO_R: |
| 157 | query = GL_PIXEL_MAP_R_TO_R_SIZE; |
| 158 | break; |
| 159 | case GL_PIXEL_MAP_G_TO_G: |
| 160 | query = GL_PIXEL_MAP_G_TO_G_SIZE; |
| 161 | break; |
| 162 | case GL_PIXEL_MAP_B_TO_B: |
| 163 | query = GL_PIXEL_MAP_B_TO_B_SIZE; |
| 164 | break; |
| 165 | case GL_PIXEL_MAP_A_TO_A: |
| 166 | query = GL_PIXEL_MAP_A_TO_A_SIZE; |
| 167 | break; |
| 168 | default: |
| 169 | return -1; |
| 170 | } |
| 171 | glGetIntegerv(query, &size); |
| 172 | return size; |
| 173 | } |
| 174 | |
| 175 | GLint |
| 176 | __glGetPixelMapfv_size(GLenum map) |
| 177 | { |
| 178 | return __glGetPixelMap_size(map); |
| 179 | } |
| 180 | |
| 181 | GLint |
| 182 | __glGetPixelMapuiv_size(GLenum map) |
| 183 | { |
| 184 | return __glGetPixelMap_size(map); |
| 185 | } |
| 186 | |
| 187 | GLint |
| 188 | __glGetPixelMapusv_size(GLenum map) |
| 189 | { |
| 190 | return __glGetPixelMap_size(map); |
| 191 | } |
| 192 | |
| 193 | GLint |
| 194 | __glGetTexImage_size(GLenum target, GLint level, GLenum format, |
| 195 | GLenum type, GLint width, GLint height, GLint depth) |
| 196 | { |
| 197 | return __glXImageSize(format, type, target, width, height, depth, |
| 198 | 0, 0, 0, 0, 4); |
| 199 | } |