José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 1 | /************************************************************************** |
| 2 | * |
| 3 | * Copyright 2011 Jose Fonseca |
| 4 | * All Rights Reserved. |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | * |
| 24 | **************************************************************************/ |
| 25 | |
| 26 | |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 27 | /* |
| 28 | * Manipulation of GL extensions. |
| 29 | * |
| 30 | * So far we insert GREMEDY extensions, but in the future we could also clamp |
| 31 | * the GL extensions to core GL versions here. |
| 32 | */ |
| 33 | |
| 34 | |
José Fonseca | 0287384 | 2011-10-27 13:23:17 +0100 | [diff] [blame] | 35 | #include <assert.h> |
José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 36 | #include <string.h> |
| 37 | #include <stdlib.h> |
| 38 | |
| 39 | #include <string> |
| 40 | #include <map> |
| 41 | |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 42 | #include "glproc.hpp" |
José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 43 | #include "gltrace.hpp" |
| 44 | |
| 45 | |
| 46 | namespace gltrace { |
| 47 | |
| 48 | |
| 49 | typedef std::map<std::string, const char *> ExtensionsMap; |
| 50 | |
| 51 | // Cache of the translated extensions strings |
| 52 | static ExtensionsMap extensionsMap; |
| 53 | |
| 54 | |
| 55 | // Additional extensions to be advertised |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 56 | static const char * |
| 57 | extraExtension_stringsFull[] = { |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 58 | "GL_GREMEDY_string_marker", |
| 59 | "GL_GREMEDY_frame_terminator", |
Peter Lohrmann | 0b5b75e | 2013-06-03 14:58:41 -0700 | [diff] [blame] | 60 | "GL_ARB_debug_output", |
| 61 | "GL_AMD_debug_output", |
| 62 | "GL_KHR_debug", |
José Fonseca | 7ff8241 | 2014-02-04 19:01:22 +0000 | [diff] [blame] | 63 | "GL_EXT_debug_marker", |
| 64 | "GL_EXT_debug_label", |
José Fonseca | 631dbd1 | 2014-12-15 16:34:45 +0000 | [diff] [blame^] | 65 | "GL_VMWX_map_buffer_debug", |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 66 | }; |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 67 | |
| 68 | static const char * |
| 69 | extraExtension_stringsES[] = { |
José Fonseca | d7cd6d0 | 2014-12-15 09:58:03 +0000 | [diff] [blame] | 70 | "GL_KHR_debug", |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 71 | "GL_EXT_debug_marker", |
José Fonseca | 7ff8241 | 2014-02-04 19:01:22 +0000 | [diff] [blame] | 72 | "GL_EXT_debug_label", |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 73 | }; |
| 74 | |
| 75 | // Description of additional extensions we want to advertise |
| 76 | struct ExtensionsDesc |
| 77 | { |
| 78 | unsigned numStrings; |
| 79 | const char **strings; |
| 80 | }; |
| 81 | |
| 82 | #define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0])) |
| 83 | |
| 84 | const struct ExtensionsDesc |
| 85 | extraExtensionsFull = { |
| 86 | ARRAY_SIZE(extraExtension_stringsFull), |
| 87 | extraExtension_stringsFull |
| 88 | }; |
| 89 | |
| 90 | const struct ExtensionsDesc |
| 91 | extraExtensionsES = { |
| 92 | ARRAY_SIZE(extraExtension_stringsES), |
| 93 | extraExtension_stringsES |
| 94 | }; |
| 95 | |
| 96 | |
| 97 | const struct ExtensionsDesc * |
| 98 | getExtraExtensions(void) |
| 99 | { |
| 100 | Context *ctx = getContext(); |
| 101 | |
| 102 | switch (ctx->profile) { |
| 103 | case PROFILE_COMPAT: |
| 104 | return &extraExtensionsFull; |
| 105 | case PROFILE_ES1: |
| 106 | case PROFILE_ES2: |
| 107 | return &extraExtensionsES; |
| 108 | default: |
| 109 | assert(0); |
| 110 | return &extraExtensionsFull; |
| 111 | } |
| 112 | } |
José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 113 | |
| 114 | |
| 115 | /** |
| 116 | * Translate the GL extensions string, adding new extensions. |
| 117 | */ |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 118 | static const char * |
| 119 | overrideExtensionsString(const char *extensions) |
José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 120 | { |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 121 | const ExtensionsDesc *desc = getExtraExtensions(); |
José Fonseca | 7525e6f | 2011-09-28 09:04:56 +0100 | [diff] [blame] | 122 | size_t i; |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 123 | |
José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 124 | ExtensionsMap::const_iterator it = extensionsMap.find(extensions); |
| 125 | if (it != extensionsMap.end()) { |
| 126 | return it->second; |
| 127 | } |
| 128 | |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 129 | size_t extensionsLen = strlen(extensions); |
José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 130 | |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 131 | size_t extraExtensionsLen = 0; |
| 132 | for (i = 0; i < desc->numStrings; ++i) { |
| 133 | const char * extraExtension = desc->strings[i]; |
| 134 | size_t extraExtensionLen = strlen(extraExtension); |
| 135 | extraExtensionsLen += extraExtensionLen + 1; |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 136 | } |
| 137 | |
José Fonseca | 0287384 | 2011-10-27 13:23:17 +0100 | [diff] [blame] | 138 | // We use malloc memory instead of a std::string because we need to ensure |
| 139 | // that extensions strings will not move in memory as the extensionsMap is |
| 140 | // updated. |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 141 | size_t newExtensionsLen = extensionsLen + 1 + extraExtensionsLen + 1; |
| 142 | char *newExtensions = (char *)malloc(newExtensionsLen); |
| 143 | if (!newExtensions) { |
José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 144 | return extensions; |
| 145 | } |
| 146 | |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 147 | if (extensionsLen) { |
| 148 | memcpy(newExtensions, extensions, extensionsLen); |
José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 149 | |
| 150 | // Add space separator if necessary |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 151 | if (newExtensions[extensionsLen - 1] != ' ') { |
| 152 | newExtensions[extensionsLen++] = ' '; |
José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 153 | } |
| 154 | } |
| 155 | |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 156 | for (i = 0; i < desc->numStrings; ++i) { |
| 157 | const char * extraExtension = desc->strings[i]; |
| 158 | size_t extraExtensionLen = strlen(extraExtension); |
| 159 | memcpy(newExtensions + extensionsLen, extraExtension, extraExtensionLen); |
| 160 | extensionsLen += extraExtensionLen; |
| 161 | newExtensions[extensionsLen++] = ' '; |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 162 | } |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 163 | newExtensions[extensionsLen++] = '\0'; |
| 164 | assert(extensionsLen <= newExtensionsLen); |
José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 165 | |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 166 | extensionsMap[extensions] = newExtensions; |
José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 167 | |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 168 | return newExtensions; |
José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 169 | } |
| 170 | |
| 171 | |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 172 | const GLubyte * |
José Fonseca | 632a78d | 2012-04-19 07:18:59 +0100 | [diff] [blame] | 173 | _glGetString_override(GLenum name) |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 174 | { |
José Fonseca | 632a78d | 2012-04-19 07:18:59 +0100 | [diff] [blame] | 175 | const GLubyte *result = _glGetString(name); |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 176 | |
| 177 | if (result) { |
| 178 | switch (name) { |
| 179 | case GL_EXTENSIONS: |
| 180 | result = (const GLubyte *)overrideExtensionsString((const char *)result); |
| 181 | break; |
| 182 | default: |
| 183 | break; |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | return result; |
| 188 | } |
| 189 | |
| 190 | |
| 191 | void |
José Fonseca | 632a78d | 2012-04-19 07:18:59 +0100 | [diff] [blame] | 192 | _glGetIntegerv_override(GLenum pname, GLint *params) |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 193 | { |
José Fonseca | 632a78d | 2012-04-19 07:18:59 +0100 | [diff] [blame] | 194 | _glGetIntegerv(pname, params); |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 195 | |
| 196 | if (params) { |
| 197 | switch (pname) { |
| 198 | case GL_NUM_EXTENSIONS: |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 199 | { |
| 200 | const ExtensionsDesc *desc = getExtraExtensions(); |
| 201 | *params += desc->numStrings; |
| 202 | } |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 203 | break; |
José Fonseca | d773000 | 2013-10-24 18:55:19 +0100 | [diff] [blame] | 204 | case GL_MAX_LABEL_LENGTH: |
| 205 | /* We provide our default implementation of KHR_debug when the |
| 206 | * driver does not. So return something sensible here. |
| 207 | */ |
| 208 | if (params[0] == 0) { |
| 209 | params[0] = 256; |
| 210 | } |
| 211 | break; |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 212 | default: |
| 213 | break; |
| 214 | } |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | |
| 219 | const GLubyte * |
José Fonseca | 632a78d | 2012-04-19 07:18:59 +0100 | [diff] [blame] | 220 | _glGetStringi_override(GLenum name, GLuint index) |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 221 | { |
| 222 | switch (name) { |
| 223 | case GL_EXTENSIONS: |
| 224 | { |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 225 | const ExtensionsDesc *desc = getExtraExtensions(); |
| 226 | GLint numExtensions = 0; |
José Fonseca | 632a78d | 2012-04-19 07:18:59 +0100 | [diff] [blame] | 227 | _glGetIntegerv(GL_NUM_EXTENSIONS, &numExtensions); |
José Fonseca | f028a8f | 2012-02-15 23:33:35 +0000 | [diff] [blame] | 228 | if ((GLuint)numExtensions <= index && index < (GLuint)numExtensions + desc->numStrings) { |
| 229 | return (const GLubyte *)desc->strings[index - (GLuint)numExtensions]; |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 230 | } |
| 231 | } |
| 232 | break; |
| 233 | default: |
| 234 | break; |
| 235 | } |
| 236 | |
José Fonseca | 632a78d | 2012-04-19 07:18:59 +0100 | [diff] [blame] | 237 | return _glGetStringi(name, index); |
José Fonseca | a08d275 | 2011-08-25 13:26:43 +0100 | [diff] [blame] | 238 | } |
| 239 | |
| 240 | |
José Fonseca | 1b3d375 | 2011-07-15 10:15:19 +0100 | [diff] [blame] | 241 | } /* namespace gltrace */ |
| 242 | |