| 1 | /* |
| 2 | * Copyright © 2008 Red Hat, Inc |
| 3 | * |
| 4 | * Permission to use, copy, modify, distribute, and sell this software |
| 5 | * and its documentation for any purpose is hereby granted without |
| 6 | * fee, provided that the above copyright notice appear in all copies |
| 7 | * and that both that copyright notice and this permission notice |
| 8 | * appear in supporting documentation, and that the name of the |
| 9 | * copyright holders not be used in advertising or publicity |
| 10 | * pertaining to distribution of the software without specific, |
| 11 | * written prior permission. The copyright holders make no |
| 12 | * representations about the suitability of this software for any |
| 13 | * purpose. It is provided "as is" without express or implied |
| 14 | * warranty. |
| 15 | * |
| 16 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS |
| 17 | * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| 18 | * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 19 | * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 20 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN |
| 21 | * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING |
| 22 | * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
| 23 | * SOFTWARE. |
| 24 | */ |
| 25 | |
| 26 | #ifdef HAVE_DIX_CONFIG_H |
| 27 | #include <dix-config.h> |
| 28 | #endif |
| 29 | |
| 30 | #include <stdint.h> |
| 31 | #include <errno.h> |
| 32 | #include <dlfcn.h> |
| 33 | #include <sys/time.h> |
| 34 | #include <GL/gl.h> |
| 35 | #include <GL/glxtokens.h> |
| 36 | #include <GL/internal/dri_interface.h> |
| 37 | #include <os.h> |
| 38 | #include "glxserver.h" |
| 39 | #include "glxext.h" |
| 40 | #include "glxcontext.h" |
| 41 | #include "glxscreens.h" |
| 42 | #include "glxdricommon.h" |
| 43 | |
| 44 | static int |
| 45 | getUST(int64_t * ust) |
| 46 | { |
| 47 | struct timeval tv; |
| 48 | |
| 49 | if (ust == NULL) |
| 50 | return -EFAULT; |
| 51 | |
| 52 | if (gettimeofday(&tv, NULL) == 0) { |
| 53 | ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec; |
| 54 | return 0; |
| 55 | } |
| 56 | else { |
| 57 | return -errno; |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | const __DRIsystemTimeExtension systemTimeExtension = { |
| 62 | {__DRI_SYSTEM_TIME, 1}, |
| 63 | getUST, |
| 64 | NULL, |
| 65 | }; |
| 66 | |
| 67 | #define __ATTRIB(attrib, field) \ |
| 68 | { attrib, offsetof(__GLXconfig, field) } |
| 69 | |
| 70 | static const struct { |
| 71 | unsigned int attrib, offset; |
| 72 | } attribMap[] = { |
| 73 | __ATTRIB(__DRI_ATTRIB_BUFFER_SIZE, rgbBits), |
| 74 | __ATTRIB(__DRI_ATTRIB_LEVEL, level), |
| 75 | __ATTRIB(__DRI_ATTRIB_RED_SIZE, redBits), |
| 76 | __ATTRIB(__DRI_ATTRIB_GREEN_SIZE, greenBits), |
| 77 | __ATTRIB(__DRI_ATTRIB_BLUE_SIZE, blueBits), |
| 78 | __ATTRIB(__DRI_ATTRIB_ALPHA_SIZE, alphaBits), |
| 79 | __ATTRIB(__DRI_ATTRIB_DEPTH_SIZE, depthBits), |
| 80 | __ATTRIB(__DRI_ATTRIB_STENCIL_SIZE, stencilBits), |
| 81 | __ATTRIB(__DRI_ATTRIB_ACCUM_RED_SIZE, accumRedBits), |
| 82 | __ATTRIB(__DRI_ATTRIB_ACCUM_GREEN_SIZE, accumGreenBits), |
| 83 | __ATTRIB(__DRI_ATTRIB_ACCUM_BLUE_SIZE, accumBlueBits), |
| 84 | __ATTRIB(__DRI_ATTRIB_ACCUM_ALPHA_SIZE, accumAlphaBits), |
| 85 | __ATTRIB(__DRI_ATTRIB_SAMPLE_BUFFERS, sampleBuffers), |
| 86 | __ATTRIB(__DRI_ATTRIB_SAMPLES, samples), |
| 87 | __ATTRIB(__DRI_ATTRIB_DOUBLE_BUFFER, doubleBufferMode), |
| 88 | __ATTRIB(__DRI_ATTRIB_STEREO, stereoMode), |
| 89 | __ATTRIB(__DRI_ATTRIB_AUX_BUFFERS, numAuxBuffers), |
| 90 | __ATTRIB(__DRI_ATTRIB_TRANSPARENT_TYPE, transparentPixel), |
| 91 | __ATTRIB(__DRI_ATTRIB_TRANSPARENT_INDEX_VALUE, transparentPixel), |
| 92 | __ATTRIB(__DRI_ATTRIB_TRANSPARENT_RED_VALUE, transparentRed), |
| 93 | __ATTRIB(__DRI_ATTRIB_TRANSPARENT_GREEN_VALUE, transparentGreen), |
| 94 | __ATTRIB(__DRI_ATTRIB_TRANSPARENT_BLUE_VALUE, transparentBlue), |
| 95 | __ATTRIB(__DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE, transparentAlpha), |
| 96 | __ATTRIB(__DRI_ATTRIB_RED_MASK, redMask), |
| 97 | __ATTRIB(__DRI_ATTRIB_GREEN_MASK, greenMask), |
| 98 | __ATTRIB(__DRI_ATTRIB_BLUE_MASK, blueMask), |
| 99 | __ATTRIB(__DRI_ATTRIB_ALPHA_MASK, alphaMask), |
| 100 | __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_WIDTH, maxPbufferWidth), |
| 101 | __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_HEIGHT, maxPbufferHeight), |
| 102 | __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_PIXELS, maxPbufferPixels), |
| 103 | __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH, optimalPbufferWidth), |
| 104 | __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT, optimalPbufferHeight), |
| 105 | __ATTRIB(__DRI_ATTRIB_SWAP_METHOD, swapMethod), |
| 106 | __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGB, bindToTextureRgb), |
| 107 | __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGBA, bindToTextureRgba), |
| 108 | __ATTRIB(__DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE, bindToMipmapTexture), |
| 109 | __ATTRIB(__DRI_ATTRIB_YINVERTED, yInverted), |
| 110 | __ATTRIB(__DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE, sRGBCapable), |
| 111 | }; |
| 112 | |
| 113 | static void |
| 114 | setScalar(__GLXconfig * config, unsigned int attrib, unsigned int value) |
| 115 | { |
| 116 | int i; |
| 117 | |
| 118 | for (i = 0; i < ARRAY_SIZE(attribMap); i++) |
| 119 | if (attribMap[i].attrib == attrib) { |
| 120 | *(unsigned int *) ((char *) config + attribMap[i].offset) = value; |
| 121 | return; |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | static __GLXconfig * |
| 126 | createModeFromConfig(const __DRIcoreExtension * core, |
| 127 | const __DRIconfig * driConfig, |
| 128 | unsigned int visualType, unsigned int drawableType) |
| 129 | { |
| 130 | __GLXDRIconfig *config; |
| 131 | GLint renderType = 0; |
| 132 | unsigned int attrib, value; |
| 133 | int i; |
| 134 | |
| 135 | config = calloc(1, sizeof *config); |
| 136 | |
| 137 | config->driConfig = driConfig; |
| 138 | |
| 139 | i = 0; |
| 140 | while (core->indexConfigAttrib(driConfig, i++, &attrib, &value)) { |
| 141 | switch (attrib) { |
| 142 | case __DRI_ATTRIB_RENDER_TYPE: |
| 143 | if (value & __DRI_ATTRIB_RGBA_BIT) |
| 144 | renderType |= GLX_RGBA_BIT; |
| 145 | if (value & __DRI_ATTRIB_COLOR_INDEX_BIT) |
| 146 | renderType |= GLX_COLOR_INDEX_BIT; |
| 147 | if (value & __DRI_ATTRIB_FLOAT_BIT) |
| 148 | renderType |= GLX_RGBA_FLOAT_BIT_ARB; |
| 149 | if (value & __DRI_ATTRIB_UNSIGNED_FLOAT_BIT) |
| 150 | renderType |= GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT; |
| 151 | break; |
| 152 | case __DRI_ATTRIB_CONFIG_CAVEAT: |
| 153 | if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG) |
| 154 | config->config.visualRating = GLX_NON_CONFORMANT_CONFIG; |
| 155 | else if (value & __DRI_ATTRIB_SLOW_BIT) |
| 156 | config->config.visualRating = GLX_SLOW_CONFIG; |
| 157 | else |
| 158 | config->config.visualRating = GLX_NONE; |
| 159 | break; |
| 160 | case __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS: |
| 161 | config->config.bindToTextureTargets = 0; |
| 162 | if (value & __DRI_ATTRIB_TEXTURE_1D_BIT) |
| 163 | config->config.bindToTextureTargets |= GLX_TEXTURE_1D_BIT_EXT; |
| 164 | if (value & __DRI_ATTRIB_TEXTURE_2D_BIT) |
| 165 | config->config.bindToTextureTargets |= GLX_TEXTURE_2D_BIT_EXT; |
| 166 | if (value & __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT) |
| 167 | config->config.bindToTextureTargets |= |
| 168 | GLX_TEXTURE_RECTANGLE_BIT_EXT; |
| 169 | break; |
| 170 | default: |
| 171 | setScalar(&config->config, attrib, value); |
| 172 | break; |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | config->config.next = NULL; |
| 177 | config->config.xRenderable = GL_TRUE; |
| 178 | config->config.visualType = visualType; |
| 179 | config->config.renderType = renderType; |
| 180 | config->config.drawableType = drawableType; |
| 181 | config->config.yInverted = GL_TRUE; |
| 182 | |
| 183 | return &config->config; |
| 184 | } |
| 185 | |
| 186 | static Bool |
| 187 | render_type_is_pbuffer_only(unsigned renderType) |
| 188 | { |
| 189 | /* The GL_ARB_color_buffer_float spec says: |
| 190 | * |
| 191 | * "Note that floating point rendering is only supported for |
| 192 | * GLXPbuffer drawables. The GLX_DRAWABLE_TYPE attribute of the |
| 193 | * GLXFBConfig must have the GLX_PBUFFER_BIT bit set and the |
| 194 | * GLX_RENDER_TYPE attribute must have the GLX_RGBA_FLOAT_BIT set." |
| 195 | */ |
| 196 | return !!(renderType & (__DRI_ATTRIB_UNSIGNED_FLOAT_BIT |
| 197 | | __DRI_ATTRIB_FLOAT_BIT)); |
| 198 | } |
| 199 | |
| 200 | __GLXconfig * |
| 201 | glxConvertConfigs(const __DRIcoreExtension * core, |
| 202 | const __DRIconfig ** configs, unsigned int drawableType) |
| 203 | { |
| 204 | __GLXconfig head, *tail; |
| 205 | int i; |
| 206 | |
| 207 | tail = &head; |
| 208 | head.next = NULL; |
| 209 | |
| 210 | for (i = 0; configs[i]; i++) { |
| 211 | unsigned renderType = 0; |
| 212 | if (core->getConfigAttrib(configs[i], __DRI_ATTRIB_RENDER_TYPE, |
| 213 | &renderType)) { |
| 214 | if (render_type_is_pbuffer_only(renderType) && |
| 215 | !(drawableType & GLX_PBUFFER_BIT)) |
| 216 | continue; |
| 217 | } |
| 218 | /* Add all the others */ |
| 219 | tail->next = createModeFromConfig(core, |
| 220 | configs[i], GLX_TRUE_COLOR, |
| 221 | drawableType); |
| 222 | if (tail->next == NULL) |
| 223 | break; |
| 224 | |
| 225 | tail = tail->next; |
| 226 | } |
| 227 | |
| 228 | for (i = 0; configs[i]; i++) { |
| 229 | int renderType = 0; |
| 230 | if (core->getConfigAttrib(configs[i], __DRI_ATTRIB_RENDER_TYPE, |
| 231 | &renderType)) { |
| 232 | if (render_type_is_pbuffer_only(renderType) && |
| 233 | !(drawableType & GLX_PBUFFER_BIT)) |
| 234 | continue; |
| 235 | } |
| 236 | /* Add all the others */ |
| 237 | tail->next = createModeFromConfig(core, |
| 238 | configs[i], GLX_DIRECT_COLOR, |
| 239 | drawableType); |
| 240 | if (tail->next == NULL) |
| 241 | break; |
| 242 | |
| 243 | tail = tail->next; |
| 244 | } |
| 245 | |
| 246 | return head.next; |
| 247 | } |
| 248 | |
| 249 | static const char dri_driver_path[] = DRI_DRIVER_PATH; |
| 250 | |
| 251 | /* Temporary define to allow building without a dri_interface.h from |
| 252 | * updated Mesa. Some day when we don't care about Mesa that old any |
| 253 | * more this can be removed. |
| 254 | */ |
| 255 | #ifndef __DRI_DRIVER_GET_EXTENSIONS |
| 256 | #define __DRI_DRIVER_GET_EXTENSIONS "__driDriverGetExtensions" |
| 257 | #endif |
| 258 | |
| 259 | void * |
| 260 | glxProbeDriver(const char *driverName, |
| 261 | void **coreExt, const char *coreName, int coreVersion, |
| 262 | void **renderExt, const char *renderName, int renderVersion) |
| 263 | { |
| 264 | int i; |
| 265 | void *driver; |
| 266 | char filename[PATH_MAX]; |
| 267 | char *get_extensions_name; |
| 268 | const __DRIextension **extensions = NULL; |
| 269 | |
| 270 | snprintf(filename, sizeof filename, "%s/%s_dri.so", |
| 271 | dri_driver_path, driverName); |
| 272 | |
| 273 | driver = dlopen(filename, RTLD_LAZY | RTLD_LOCAL); |
| 274 | if (driver == NULL) { |
| 275 | LogMessage(X_ERROR, "AIGLX error: dlopen of %s failed (%s)\n", |
| 276 | filename, dlerror()); |
| 277 | goto cleanup_failure; |
| 278 | } |
| 279 | |
| 280 | if (asprintf(&get_extensions_name, "%s_%s", |
| 281 | __DRI_DRIVER_GET_EXTENSIONS, driverName) != -1) { |
| 282 | const __DRIextension **(*get_extensions)(void); |
| 283 | |
| 284 | get_extensions = dlsym(driver, get_extensions_name); |
| 285 | if (get_extensions) |
| 286 | extensions = get_extensions(); |
| 287 | free(get_extensions_name); |
| 288 | } |
| 289 | |
| 290 | if (!extensions) |
| 291 | extensions = dlsym(driver, __DRI_DRIVER_EXTENSIONS); |
| 292 | if (extensions == NULL) { |
| 293 | LogMessage(X_ERROR, "AIGLX error: %s exports no extensions (%s)\n", |
| 294 | driverName, dlerror()); |
| 295 | goto cleanup_failure; |
| 296 | } |
| 297 | |
| 298 | for (i = 0; extensions[i]; i++) { |
| 299 | if (strcmp(extensions[i]->name, coreName) == 0 && |
| 300 | extensions[i]->version >= coreVersion) { |
| 301 | *coreExt = (void *) extensions[i]; |
| 302 | } |
| 303 | |
| 304 | if (strcmp(extensions[i]->name, renderName) == 0 && |
| 305 | extensions[i]->version >= renderVersion) { |
| 306 | *renderExt = (void *) extensions[i]; |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | if (*coreExt == NULL || *renderExt == NULL) { |
| 311 | LogMessage(X_ERROR, |
| 312 | "AIGLX error: %s does not export required DRI extension\n", |
| 313 | driverName); |
| 314 | goto cleanup_failure; |
| 315 | } |
| 316 | return driver; |
| 317 | |
| 318 | cleanup_failure: |
| 319 | if (driver) |
| 320 | dlclose(driver); |
| 321 | *coreExt = *renderExt = NULL; |
| 322 | return NULL; |
| 323 | } |