2 * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
3 * Copyright © 2008 Red Hat, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Soft-
7 * ware"), to deal in the Software without restriction, including without
8 * limitation the rights to use, copy, modify, merge, publish, distribute,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, provided that the above copyright
11 * notice(s) and this permission notice appear in all copies of the Soft-
12 * ware and that both the above copyright notice(s) and this permission
13 * notice appear in supporting documentation.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
17 * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
18 * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
19 * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
20 * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
21 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
22 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
23 * MANCE OF THIS SOFTWARE.
25 * Except as contained in this notice, the name of a copyright holder shall
26 * not be used in advertising or otherwise to promote the sale, use or
27 * other dealings in this Software without prior written authorization of
28 * the copyright holder.
31 * Kevin E. Martin <kevin@precisioninsight.com>
32 * Brian Paul <brian@precisioninsight.com>
33 * Kristian Høgsberg (krh@redhat.com)
36 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
41 #include "glxclient.h"
42 #include "dri_common.h"
52 * Print informational message to stderr if LIBGL_DEBUG is set to
56 InfoMessageF(const char *f, ...)
61 if ((env = getenv("LIBGL_DEBUG")) && strstr(env, "verbose")) {
62 fprintf(stderr, "libGL: ");
64 vfprintf(stderr, f, args);
70 * Print error message to stderr if LIBGL_DEBUG is set to anything but
71 * "quiet", (do nothing if LIBGL_DEBUG is unset).
74 ErrorMessageF(const char *f, ...)
79 if ((env = getenv("LIBGL_DEBUG")) && !strstr(env, "quiet")) {
80 fprintf(stderr, "libGL error: ");
82 vfprintf(stderr, f, args);
88 * Print error message unless LIBGL_DEBUG is set to "quiet".
90 * The distinction between CriticalErrorMessageF and ErrorMessageF is
91 * that critcial errors will be printed by default, (even when
92 * LIBGL_DEBUG is unset).
95 CriticalErrorMessageF(const char *f, ...)
100 if (!(env = getenv("LIBGL_DEBUG")) || !strstr(env, "quiet")) {
101 fprintf(stderr, "libGL error: ");
103 vfprintf(stderr, f, args);
106 if (!env || !strstr(env, "verbose"))
107 fprintf(stderr, "libGL error: Try again with LIBGL_DEBUG=verbose for more details.\n");
111 #ifndef DEFAULT_DRIVER_DIR
112 /* this is normally defined in Mesa/configs/default with DRI_DRIVER_SEARCH_PATH */
113 #define DEFAULT_DRIVER_DIR "/usr/local/lib/dri"
117 * Try to \c dlopen the named driver.
119 * This function adds the "_dri.so" suffix to the driver name and searches the
120 * directories specified by the \c LIBGL_DRIVERS_PATH environment variable in
121 * order to find the driver.
123 * \param driverName - a name like "i965", "radeon", "nouveau", etc.
126 * A handle from \c dlopen, or \c NULL if driver file not found.
129 driOpenDriver(const char *driverName)
131 void *glhandle, *handle;
132 const char *libPaths, *p, *next;
133 char realDriverName[200];
136 /* Attempt to make sure libGL symbols will be visible to the driver */
137 glhandle = dlopen("libGL.so.1", RTLD_NOW | RTLD_GLOBAL);
140 if (geteuid() == getuid()) {
141 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
142 libPaths = getenv("LIBGL_DRIVERS_PATH");
144 libPaths = getenv("LIBGL_DRIVERS_DIR"); /* deprecated */
146 if (libPaths == NULL)
147 libPaths = DEFAULT_DRIVER_DIR;
150 for (p = libPaths; *p; p = next) {
151 next = strchr(p, ':');
162 snprintf(realDriverName, sizeof realDriverName,
163 "%.*s/tls/%s_dri.so", len, p, driverName);
164 InfoMessageF("OpenDriver: trying %s\n", realDriverName);
165 handle = dlopen(realDriverName, RTLD_NOW | RTLD_GLOBAL);
168 if (handle == NULL) {
169 snprintf(realDriverName, sizeof realDriverName,
170 "%.*s/%s_dri.so", len, p, driverName);
171 InfoMessageF("OpenDriver: trying %s\n", realDriverName);
172 handle = dlopen(realDriverName, RTLD_NOW | RTLD_GLOBAL);
178 ErrorMessageF("dlopen %s failed (%s)\n", realDriverName, dlerror());
182 ErrorMessageF("unable to load driver: %s_dri.so\n", driverName);
191 __driGetMSCRate(__DRIdrawable *draw,
192 int32_t * numerator, int32_t * denominator,
195 __GLXDRIdrawable *glxDraw = loaderPrivate;
197 return __glxGetMscRate(glxDraw, numerator, denominator);
200 _X_HIDDEN const __DRIsystemTimeExtension systemTimeExtension = {
201 {__DRI_SYSTEM_TIME, __DRI_SYSTEM_TIME_VERSION},
206 #define __ATTRIB(attrib, field) \
207 { attrib, offsetof(struct glx_config, field) }
211 unsigned int attrib, offset;
213 __ATTRIB(__DRI_ATTRIB_BUFFER_SIZE, rgbBits),
214 __ATTRIB(__DRI_ATTRIB_LEVEL, level),
215 __ATTRIB(__DRI_ATTRIB_RED_SIZE, redBits),
216 __ATTRIB(__DRI_ATTRIB_GREEN_SIZE, greenBits),
217 __ATTRIB(__DRI_ATTRIB_BLUE_SIZE, blueBits),
218 __ATTRIB(__DRI_ATTRIB_ALPHA_SIZE, alphaBits),
219 __ATTRIB(__DRI_ATTRIB_DEPTH_SIZE, depthBits),
220 __ATTRIB(__DRI_ATTRIB_STENCIL_SIZE, stencilBits),
221 __ATTRIB(__DRI_ATTRIB_ACCUM_RED_SIZE, accumRedBits),
222 __ATTRIB(__DRI_ATTRIB_ACCUM_GREEN_SIZE, accumGreenBits),
223 __ATTRIB(__DRI_ATTRIB_ACCUM_BLUE_SIZE, accumBlueBits),
224 __ATTRIB(__DRI_ATTRIB_ACCUM_ALPHA_SIZE, accumAlphaBits),
225 __ATTRIB(__DRI_ATTRIB_SAMPLE_BUFFERS, sampleBuffers),
226 __ATTRIB(__DRI_ATTRIB_SAMPLES, samples),
227 __ATTRIB(__DRI_ATTRIB_DOUBLE_BUFFER, doubleBufferMode),
228 __ATTRIB(__DRI_ATTRIB_STEREO, stereoMode),
229 __ATTRIB(__DRI_ATTRIB_AUX_BUFFERS, numAuxBuffers),
231 __ATTRIB(__DRI_ATTRIB_TRANSPARENT_TYPE, transparentPixel),
232 __ATTRIB(__DRI_ATTRIB_TRANSPARENT_INDEX_VALUE, transparentIndex),
233 __ATTRIB(__DRI_ATTRIB_TRANSPARENT_RED_VALUE, transparentRed),
234 __ATTRIB(__DRI_ATTRIB_TRANSPARENT_GREEN_VALUE, transparentGreen),
235 __ATTRIB(__DRI_ATTRIB_TRANSPARENT_BLUE_VALUE, transparentBlue),
236 __ATTRIB(__DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE, transparentAlpha),
237 __ATTRIB(__DRI_ATTRIB_RED_MASK, redMask),
238 __ATTRIB(__DRI_ATTRIB_GREEN_MASK, greenMask),
239 __ATTRIB(__DRI_ATTRIB_BLUE_MASK, blueMask),
240 __ATTRIB(__DRI_ATTRIB_ALPHA_MASK, alphaMask),
242 __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_WIDTH, maxPbufferWidth),
243 __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_HEIGHT, maxPbufferHeight),
244 __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_PIXELS, maxPbufferPixels),
245 __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH, optimalPbufferWidth),
246 __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT, optimalPbufferHeight),
248 __ATTRIB(__DRI_ATTRIB_SWAP_METHOD, swapMethod),
250 __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGB, bindToTextureRgb),
251 __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGBA, bindToTextureRgba),
252 __ATTRIB(__DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE,
253 bindToMipmapTexture),
254 __ATTRIB(__DRI_ATTRIB_YINVERTED, yInverted),
255 __ATTRIB(__DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE, sRGBCapable)
259 scalarEqual(struct glx_config *mode, unsigned int attrib, unsigned int value)
261 unsigned int glxValue;
264 for (i = 0; i < ARRAY_SIZE(attribMap); i++)
265 if (attribMap[i].attrib == attrib) {
266 glxValue = *(unsigned int *) ((char *) mode + attribMap[i].offset);
267 return glxValue == GLX_DONT_CARE || glxValue == value;
270 return GL_TRUE; /* Is a non-existing attribute equal to value? */
274 driConfigEqual(const __DRIcoreExtension *core,
275 struct glx_config *config, const __DRIconfig *driConfig)
277 unsigned int attrib, value, glxValue;
281 while (core->indexConfigAttrib(driConfig, i++, &attrib, &value)) {
283 case __DRI_ATTRIB_RENDER_TYPE:
285 if (value & __DRI_ATTRIB_RGBA_BIT) {
286 glxValue |= GLX_RGBA_BIT;
288 else if (value & __DRI_ATTRIB_COLOR_INDEX_BIT) {
289 glxValue |= GLX_COLOR_INDEX_BIT;
291 if (glxValue != config->renderType)
295 case __DRI_ATTRIB_CONFIG_CAVEAT:
296 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
297 glxValue = GLX_NON_CONFORMANT_CONFIG;
298 else if (value & __DRI_ATTRIB_SLOW_BIT)
299 glxValue = GLX_SLOW_CONFIG;
302 if (glxValue != config->visualRating)
306 case __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS:
308 if (value & __DRI_ATTRIB_TEXTURE_1D_BIT)
309 glxValue |= GLX_TEXTURE_1D_BIT_EXT;
310 if (value & __DRI_ATTRIB_TEXTURE_2D_BIT)
311 glxValue |= GLX_TEXTURE_2D_BIT_EXT;
312 if (value & __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT)
313 glxValue |= GLX_TEXTURE_RECTANGLE_BIT_EXT;
314 if (config->bindToTextureTargets != GLX_DONT_CARE &&
315 glxValue != config->bindToTextureTargets)
320 if (!scalarEqual(config, attrib, value))
328 static struct glx_config *
329 createDriMode(const __DRIcoreExtension * core,
330 struct glx_config *config, const __DRIconfig **driConfigs)
332 __GLXDRIconfigPrivate *driConfig;
335 for (i = 0; driConfigs[i]; i++) {
336 if (driConfigEqual(core, config, driConfigs[i]))
340 if (driConfigs[i] == NULL)
343 driConfig = Xmalloc(sizeof *driConfig);
344 if (driConfig == NULL)
347 driConfig->base = *config;
348 driConfig->driConfig = driConfigs[i];
350 return &driConfig->base;
353 _X_HIDDEN struct glx_config *
354 driConvertConfigs(const __DRIcoreExtension * core,
355 struct glx_config *configs, const __DRIconfig **driConfigs)
357 struct glx_config head, *tail, *m;
361 for (m = configs; m; m = m->next) {
362 tail->next = createDriMode(core, m, driConfigs);
363 if (tail->next == NULL) {
364 /* no matching dri config for m */
376 driDestroyConfigs(const __DRIconfig **configs)
380 for (i = 0; configs[i]; i++)
381 free((__DRIconfig *) configs[i]);
385 _X_HIDDEN __GLXDRIdrawable *
386 driFetchDrawable(struct glx_context *gc, GLXDrawable glxDrawable)
388 struct glx_display *const priv = __glXInitialize(gc->psc->dpy);
389 __GLXDRIdrawable *pdraw;
390 struct glx_screen *psc;
395 psc = priv->screens[gc->screen];
396 if (priv->drawHash == NULL)
399 if (__glxHashLookup(priv->drawHash, glxDrawable, (void *) &pdraw) == 0) {
404 pdraw = psc->driScreen->createDrawable(psc, glxDrawable,
405 glxDrawable, gc->config);
408 ErrorMessageF("failed to create drawable\n");
412 if (__glxHashInsert(priv->drawHash, glxDrawable, pdraw)) {
413 (*pdraw->destroyDrawable) (pdraw);
422 driReleaseDrawables(struct glx_context *gc)
424 const struct glx_display *priv = gc->psc->display;
425 __GLXDRIdrawable *pdraw;
430 if (__glxHashLookup(priv->drawHash,
431 gc->currentDrawable, (void *) &pdraw) == 0) {
432 if (pdraw->drawable == pdraw->xDrawable) {
434 if (pdraw->refcount == 0) {
435 (*pdraw->destroyDrawable)(pdraw);
436 __glxHashDelete(priv->drawHash, gc->currentDrawable);
441 if (__glxHashLookup(priv->drawHash,
442 gc->currentReadable, (void *) &pdraw) == 0) {
443 if (pdraw->drawable == pdraw->xDrawable) {
445 if (pdraw->refcount == 0) {
446 (*pdraw->destroyDrawable)(pdraw);
447 __glxHashDelete(priv->drawHash, gc->currentReadable);
452 gc->currentDrawable = None;
453 gc->currentReadable = None;
458 dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
459 unsigned *major_ver, unsigned *minor_ver,
460 uint32_t *flags, unsigned *api, int *reset,
464 bool got_profile = false;
466 int render_type = GLX_RGBA_TYPE;
468 if (num_attribs == 0) {
469 *api = __DRI_API_OPENGL;
473 /* This is actually an internal error, but what the heck.
475 if (attribs == NULL) {
476 *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
482 *reset = __DRI_CTX_RESET_NO_NOTIFICATION;
484 for (i = 0; i < num_attribs; i++) {
485 switch (attribs[i * 2]) {
486 case GLX_CONTEXT_MAJOR_VERSION_ARB:
487 *major_ver = attribs[i * 2 + 1];
489 case GLX_CONTEXT_MINOR_VERSION_ARB:
490 *minor_ver = attribs[i * 2 + 1];
492 case GLX_CONTEXT_FLAGS_ARB:
493 *flags = attribs[i * 2 + 1];
495 case GLX_CONTEXT_PROFILE_MASK_ARB:
496 profile = attribs[i * 2 + 1];
499 case GLX_RENDER_TYPE:
500 render_type = attribs[i * 2 + 1];
502 case GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB:
503 switch (attribs[i * 2 + 1]) {
504 case GLX_NO_RESET_NOTIFICATION_ARB:
505 *reset = __DRI_CTX_RESET_NO_NOTIFICATION;
507 case GLX_LOSE_CONTEXT_ON_RESET_ARB:
508 *reset = __DRI_CTX_RESET_LOSE_CONTEXT;
511 *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
516 /* If an unknown attribute is received, fail.
518 *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
523 *api = __DRI_API_OPENGL;
525 if (*major_ver > 3 || (*major_ver == 3 && *minor_ver >= 2))
526 *api = __DRI_API_OPENGL_CORE;
529 case GLX_CONTEXT_CORE_PROFILE_BIT_ARB:
530 /* There are no profiles before OpenGL 3.2. The
531 * GLX_ARB_create_context_profile spec says:
533 * "If the requested OpenGL version is less than 3.2,
534 * GLX_CONTEXT_PROFILE_MASK_ARB is ignored and the functionality
535 * of the context is determined solely by the requested version."
537 *api = (*major_ver > 3 || (*major_ver == 3 && *minor_ver >= 2))
538 ? __DRI_API_OPENGL_CORE : __DRI_API_OPENGL;
540 case GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB:
541 *api = __DRI_API_OPENGL;
543 case GLX_CONTEXT_ES2_PROFILE_BIT_EXT:
544 *api = __DRI_API_GLES2;
547 *error = __DRI_CTX_ERROR_BAD_API;
552 /* Unknown flag value.
554 if (*flags & ~(__DRI_CTX_FLAG_DEBUG | __DRI_CTX_FLAG_FORWARD_COMPATIBLE
555 | __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS)) {
556 *error = __DRI_CTX_ERROR_UNKNOWN_FLAG;
560 /* There are no forward-compatible contexts before OpenGL 3.0. The
561 * GLX_ARB_create_context spec says:
563 * "Forward-compatible contexts are defined only for OpenGL versions
566 if (*major_ver < 3 && (*flags & __DRI_CTX_FLAG_FORWARD_COMPATIBLE) != 0) {
567 *error = __DRI_CTX_ERROR_BAD_FLAG;
571 if (*major_ver >= 3 && render_type == GLX_COLOR_INDEX_TYPE) {
572 *error = __DRI_CTX_ERROR_BAD_FLAG;
576 /* The GLX_EXT_create_context_es2_profile spec says:
578 * "... If the version requested is 2.0, and the
579 * GLX_CONTEXT_ES2_PROFILE_BIT_EXT bit is set in the
580 * GLX_CONTEXT_PROFILE_MASK_ARB attribute (see below), then the context
581 * returned will implement OpenGL ES 2.0. This is the only way in which
582 * an implementation may request an OpenGL ES 2.0 context."
584 if (*api == __DRI_API_GLES2 && (*major_ver != 2 || *minor_ver != 0)) {
585 *error = __DRI_CTX_ERROR_BAD_API;
589 *error = __DRI_CTX_ERROR_SUCCESS;
593 #endif /* GLX_DIRECT_RENDERING */