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egl_dri2: Downgrade initialization errors to warnings
[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * 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
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #include <stdlib.h>
29 #include <string.h>
30 #include <stdio.h>
31 #include <limits.h>
32 #include <dlfcn.h>
33 #include <fcntl.h>
34 #include <errno.h>
35 #include <unistd.h>
36 #include <xf86drm.h>
37 #include <GL/gl.h>
38 #include <GL/internal/dri_interface.h>
39 #include <xcb/xcb.h>
40 #include <xcb/dri2.h>
41 #include <xcb/xfixes.h>
42 #include <X11/Xlib-xcb.h>
43
44 #include <glapi/glapi.h>
45 #include "eglconfig.h"
46 #include "eglcontext.h"
47 #include "egldisplay.h"
48 #include "egldriver.h"
49 #include "eglcurrent.h"
50 #include "egllog.h"
51 #include "eglsurface.h"
52 #include "eglimage.h"
53
54 struct dri2_egl_driver
55 {
56 _EGLDriver base;
57
58 void (*glFlush)(void);
59 };
60
61 struct dri2_egl_display
62 {
63 xcb_connection_t *conn;
64 int dri2_major;
65 int dri2_minor;
66 __DRIscreen *dri_screen;
67 const __DRIconfig **driver_configs;
68 void *driver;
69 __DRIcoreExtension *core;
70 __DRIdri2Extension *dri2;
71 __DRI2flushExtension *flush;
72 __DRItexBufferExtension *tex_buffer;
73 __DRIimageExtension *image;
74 int fd;
75
76 char *device_name;
77 char *driver_name;
78
79 __DRIdri2LoaderExtension loader_extension;
80 __DRIimageLookupExtension image_lookup_extension;
81 const __DRIextension *extensions[3];
82 };
83
84 struct dri2_egl_context
85 {
86 _EGLContext base;
87 __DRIcontext *dri_context;
88 };
89
90 struct dri2_egl_surface
91 {
92 _EGLSurface base;
93 __DRIdrawable *dri_drawable;
94 xcb_drawable_t drawable;
95 __DRIbuffer buffers[5];
96 int buffer_count;
97 xcb_xfixes_region_t region;
98 int have_fake_front;
99 int swap_interval;
100 };
101
102 struct dri2_egl_config
103 {
104 _EGLConfig base;
105 const __DRIconfig *dri_config;
106 };
107
108 struct dri2_egl_image
109 {
110 _EGLImage base;
111 __DRIimage *dri_image;
112 };
113
114 /* standard typecasts */
115 _EGL_DRIVER_STANDARD_TYPECASTS(dri2_egl)
116 _EGL_DRIVER_TYPECAST(dri2_egl_image, _EGLImage, obj)
117
118 EGLint dri2_to_egl_attribute_map[] = {
119 0,
120 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
121 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
122 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
123 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
124 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
125 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
126 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
127 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
128 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
129 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
130 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
131 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
132 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
133 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
134 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
135 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
136 0, /* __DRI_ATTRIB_RENDER_TYPE, */
137 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
138 0, /* __DRI_ATTRIB_CONFORMANT */
139 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
140 0, /* __DRI_ATTRIB_STEREO */
141 0, /* __DRI_ATTRIB_AUX_BUFFERS */
142 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
143 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
144 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
145 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
146 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
147 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
148 0, /* __DRI_ATTRIB_FLOAT_MODE */
149 0, /* __DRI_ATTRIB_RED_MASK */
150 0, /* __DRI_ATTRIB_GREEN_MASK */
151 0, /* __DRI_ATTRIB_BLUE_MASK */
152 0, /* __DRI_ATTRIB_ALPHA_MASK */
153 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
154 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
155 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
156 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
157 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
158 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
159 0, /* __DRI_ATTRIB_SWAP_METHOD */
160 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
161 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
162 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
163 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
164 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
165 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
166 0, /* __DRI_ATTRIB_YINVERTED */
167 };
168
169 static void
170 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
171 int depth, xcb_visualtype_t *visual)
172 {
173 struct dri2_egl_config *conf;
174 struct dri2_egl_display *dri2_dpy;
175 _EGLConfig base;
176 unsigned int attrib, value, double_buffer;
177 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
178 int i;
179
180 dri2_dpy = disp->DriverData;
181 _eglInitConfig(&base, disp, id);
182
183 i = 0;
184 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
185 switch (attrib) {
186 case __DRI_ATTRIB_RENDER_TYPE:
187 if (value & __DRI_ATTRIB_RGBA_BIT)
188 value = EGL_RGB_BUFFER;
189 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
190 value = EGL_LUMINANCE_BUFFER;
191 else
192 /* not valid */;
193 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
194 break;
195
196 case __DRI_ATTRIB_CONFIG_CAVEAT:
197 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
198 value = EGL_NON_CONFORMANT_CONFIG;
199 else if (value & __DRI_ATTRIB_SLOW_BIT)
200 value = EGL_SLOW_CONFIG;
201 else
202 value = EGL_NONE;
203 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
204 break;
205
206 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
207 bind_to_texture_rgb = value;
208 break;
209
210 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
211 bind_to_texture_rgba = value;
212 break;
213
214 case __DRI_ATTRIB_DOUBLE_BUFFER:
215 double_buffer = value;
216 break;
217
218 default:
219 key = dri2_to_egl_attribute_map[attrib];
220 if (key != 0)
221 _eglSetConfigKey(&base, key, value);
222 break;
223 }
224 }
225
226 /* In EGL, double buffer or not isn't a config attribute. Pixmaps
227 * surfaces are always single buffered, pbuffer surfaces are always
228 * back buffers and windows can be either, selected by passing an
229 * attribute at window surface construction time. To support this
230 * we ignore all double buffer configs and manipulate the buffer we
231 * return in the getBuffer callback to get the behaviour we want. */
232
233 if (double_buffer)
234 return;
235
236 if (visual != NULL) {
237 if (depth != _eglGetConfigKey(&base, EGL_BUFFER_SIZE))
238 return;
239
240 _eglSetConfigKey(&base, EGL_SURFACE_TYPE,
241 EGL_WINDOW_BIT | EGL_PIXMAP_BIT | EGL_PBUFFER_BIT |
242 EGL_SWAP_BEHAVIOR_PRESERVED_BIT);
243
244 _eglSetConfigKey(&base, EGL_NATIVE_VISUAL_ID, visual->visual_id);
245 _eglSetConfigKey(&base, EGL_NATIVE_VISUAL_TYPE, visual->_class);
246 } else {
247 _eglSetConfigKey(&base, EGL_SURFACE_TYPE,
248 EGL_PIXMAP_BIT | EGL_PBUFFER_BIT);
249 }
250
251 _eglSetConfigKey(&base, EGL_NATIVE_RENDERABLE, EGL_TRUE);
252 _eglSetConfigKey(&base, EGL_BIND_TO_TEXTURE_RGB, bind_to_texture_rgb);
253 if (_eglGetConfigKey(&base, EGL_ALPHA_SIZE) > 0)
254 _eglSetConfigKey(&base,
255 EGL_BIND_TO_TEXTURE_RGBA, bind_to_texture_rgba);
256
257 _eglSetConfigKey(&base, EGL_RENDERABLE_TYPE, disp->ClientAPIsMask);
258 _eglSetConfigKey(&base, EGL_CONFORMANT, disp->ClientAPIsMask);
259
260 if (!_eglValidateConfig(&base, EGL_FALSE)) {
261 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
262 return;
263 }
264
265 conf = malloc(sizeof *conf);
266 if (conf != NULL) {
267 memcpy(&conf->base, &base, sizeof base);
268 conf->dri_config = dri_config;
269 _eglAddConfig(disp, &conf->base);
270 }
271 }
272
273 /**
274 * Process list of buffer received from the server
275 *
276 * Processes the list of buffers received in a reply from the server to either
277 * \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat.
278 */
279 static void
280 dri2_process_buffers(struct dri2_egl_surface *dri2_surf,
281 xcb_dri2_dri2_buffer_t *buffers, unsigned count)
282 {
283 struct dri2_egl_display *dri2_dpy =
284 dri2_egl_display(dri2_surf->base.Resource.Display);
285 xcb_rectangle_t rectangle;
286 int i;
287
288 dri2_surf->buffer_count = count;
289 dri2_surf->have_fake_front = 0;
290
291 /* This assumes the DRI2 buffer attachment tokens matches the
292 * __DRIbuffer tokens. */
293 for (i = 0; i < count; i++) {
294 dri2_surf->buffers[i].attachment = buffers[i].attachment;
295 dri2_surf->buffers[i].name = buffers[i].name;
296 dri2_surf->buffers[i].pitch = buffers[i].pitch;
297 dri2_surf->buffers[i].cpp = buffers[i].cpp;
298 dri2_surf->buffers[i].flags = buffers[i].flags;
299
300 /* We only use the DRI drivers single buffer configs. This
301 * means that if we try to render to a window, DRI2 will give us
302 * the fake front buffer, which we'll use as a back buffer.
303 * Note that EGL doesn't require that several clients rendering
304 * to the same window must see the same aux buffers. */
305 if (dri2_surf->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT)
306 dri2_surf->have_fake_front = 1;
307 }
308
309 if (dri2_surf->region != XCB_NONE)
310 xcb_xfixes_destroy_region(dri2_dpy->conn, dri2_surf->region);
311
312 rectangle.x = 0;
313 rectangle.y = 0;
314 rectangle.width = dri2_surf->base.Width;
315 rectangle.height = dri2_surf->base.Height;
316 dri2_surf->region = xcb_generate_id(dri2_dpy->conn);
317 xcb_xfixes_create_region(dri2_dpy->conn, dri2_surf->region, 1, &rectangle);
318 }
319
320 static __DRIbuffer *
321 dri2_get_buffers(__DRIdrawable * driDrawable,
322 int *width, int *height,
323 unsigned int *attachments, int count,
324 int *out_count, void *loaderPrivate)
325 {
326 struct dri2_egl_surface *dri2_surf = loaderPrivate;
327 struct dri2_egl_display *dri2_dpy =
328 dri2_egl_display(dri2_surf->base.Resource.Display);
329 xcb_dri2_dri2_buffer_t *buffers;
330 xcb_dri2_get_buffers_reply_t *reply;
331 xcb_dri2_get_buffers_cookie_t cookie;
332
333 cookie = xcb_dri2_get_buffers_unchecked (dri2_dpy->conn,
334 dri2_surf->drawable,
335 count, count, attachments);
336 reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn, cookie, NULL);
337 buffers = xcb_dri2_get_buffers_buffers (reply);
338 if (buffers == NULL)
339 return NULL;
340
341 *out_count = reply->count;
342 dri2_surf->base.Width = *width = reply->width;
343 dri2_surf->base.Height = *height = reply->height;
344 dri2_process_buffers(dri2_surf, buffers, *out_count);
345
346 free(reply);
347
348 return dri2_surf->buffers;
349 }
350
351 static void
352 dri2_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
353 {
354 /* FIXME: Does EGL support front buffer rendering at all? */
355
356 #if 0
357 struct dri2_egl_surface *dri2_surf = loaderPrivate;
358
359 dri2WaitGL(dri2_surf);
360 #endif
361 }
362
363 static __DRIimage *
364 dri2_lookup_egl_image(__DRIcontext *context, void *image, void *data)
365 {
366 struct dri2_egl_context *dri2_ctx = data;
367 _EGLDisplay *disp = dri2_ctx->base.Resource.Display;
368 struct dri2_egl_image *dri2_img;
369 _EGLImage *img;
370
371 img = _eglLookupImage(image, disp);
372 if (img == NULL) {
373 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
374 return NULL;
375 }
376
377 dri2_img = dri2_egl_image(image);
378
379 return dri2_img->dri_image;
380 }
381
382 static __DRIbuffer *
383 dri2_get_buffers_with_format(__DRIdrawable * driDrawable,
384 int *width, int *height,
385 unsigned int *attachments, int count,
386 int *out_count, void *loaderPrivate)
387 {
388 struct dri2_egl_surface *dri2_surf = loaderPrivate;
389 struct dri2_egl_display *dri2_dpy =
390 dri2_egl_display(dri2_surf->base.Resource.Display);
391 xcb_dri2_dri2_buffer_t *buffers;
392 xcb_dri2_get_buffers_with_format_reply_t *reply;
393 xcb_dri2_get_buffers_with_format_cookie_t cookie;
394 xcb_dri2_attach_format_t *format_attachments;
395
396 format_attachments = (xcb_dri2_attach_format_t *) attachments;
397 cookie = xcb_dri2_get_buffers_with_format_unchecked (dri2_dpy->conn,
398 dri2_surf->drawable,
399 count, count,
400 format_attachments);
401
402 reply = xcb_dri2_get_buffers_with_format_reply (dri2_dpy->conn,
403 cookie, NULL);
404 if (reply == NULL)
405 return NULL;
406
407 buffers = xcb_dri2_get_buffers_with_format_buffers (reply);
408 dri2_surf->base.Width = *width = reply->width;
409 dri2_surf->base.Height = *height = reply->height;
410 *out_count = reply->count;
411 dri2_process_buffers(dri2_surf, buffers, *out_count);
412
413 free(reply);
414
415 return dri2_surf->buffers;
416 }
417
418 #ifdef GLX_USE_TLS
419 static const char dri_driver_format[] = "%.*s/tls/%s_dri.so";
420 #else
421 static const char dri_driver_format[] = "%.*s/%s_dri.so";
422 #endif
423
424 static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
425
426 struct dri2_extension_match {
427 const char *name;
428 int version;
429 int offset;
430 };
431
432 static struct dri2_extension_match dri2_driver_extensions[] = {
433 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
434 { __DRI_DRI2, 1, offsetof(struct dri2_egl_display, dri2) },
435 { NULL }
436 };
437
438 static struct dri2_extension_match dri2_core_extensions[] = {
439 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
440 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
441 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
442 { NULL }
443 };
444
445 static EGLBoolean
446 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
447 struct dri2_extension_match *matches,
448 const __DRIextension **extensions)
449 {
450 int i, j, ret = EGL_TRUE;
451 void *field;
452
453 for (i = 0; extensions[i]; i++) {
454 _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
455 for (j = 0; matches[j].name; j++) {
456 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
457 extensions[i]->version >= matches[j].version) {
458 field = ((char *) dri2_dpy + matches[j].offset);
459 *(const __DRIextension **) field = extensions[i];
460 _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
461 extensions[i]->name, extensions[i]->version);
462 }
463 }
464 }
465
466 for (j = 0; matches[j].name; j++) {
467 field = ((char *) dri2_dpy + matches[j].offset);
468 if (*(const __DRIextension **) field == NULL) {
469 _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
470 matches[j].name, matches[j].version);
471 ret = EGL_FALSE;
472 }
473 }
474
475 return ret;
476 }
477
478 static char *
479 dri2_strndup(const char *s, int length)
480 {
481 char *d;
482
483 d = malloc(length + 1);
484 if (d == NULL)
485 return NULL;
486
487 memcpy(d, s, length);
488 d[length] = '\0';
489
490 return d;
491 }
492
493 static EGLBoolean
494 dri2_connect(struct dri2_egl_display *dri2_dpy)
495 {
496 xcb_xfixes_query_version_reply_t *xfixes_query;
497 xcb_xfixes_query_version_cookie_t xfixes_query_cookie;
498 xcb_dri2_query_version_reply_t *dri2_query;
499 xcb_dri2_query_version_cookie_t dri2_query_cookie;
500 xcb_dri2_connect_reply_t *connect;
501 xcb_dri2_connect_cookie_t connect_cookie;
502 xcb_generic_error_t *error;
503 xcb_screen_iterator_t s;
504
505 xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id);
506 xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id);
507
508 xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn,
509 XCB_XFIXES_MAJOR_VERSION,
510 XCB_XFIXES_MINOR_VERSION);
511
512 dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn,
513 XCB_DRI2_MAJOR_VERSION,
514 XCB_DRI2_MINOR_VERSION);
515
516 s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
517 connect_cookie = xcb_dri2_connect_unchecked (dri2_dpy->conn,
518 s.data->root,
519 XCB_DRI2_DRIVER_TYPE_DRI);
520
521 xfixes_query =
522 xcb_xfixes_query_version_reply (dri2_dpy->conn,
523 xfixes_query_cookie, &error);
524 if (xfixes_query == NULL ||
525 error != NULL || xfixes_query->major_version < 2) {
526 _eglLog(_EGL_FATAL, "DRI2: failed to query xfixes version");
527 free(error);
528 return EGL_FALSE;
529 }
530 free(xfixes_query);
531
532 dri2_query =
533 xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error);
534 if (dri2_query == NULL || error != NULL) {
535 _eglLog(_EGL_FATAL, "DRI2: failed to query version");
536 free(error);
537 return EGL_FALSE;
538 }
539 dri2_dpy->dri2_major = dri2_query->major_version;
540 dri2_dpy->dri2_minor = dri2_query->minor_version;
541 free(dri2_query);
542
543 connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL);
544 if (connect == NULL ||
545 connect->driver_name_length + connect->device_name_length == 0) {
546 _eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
547 return EGL_FALSE;
548 }
549
550 dri2_dpy->device_name =
551 dri2_strndup(xcb_dri2_connect_device_name (connect),
552 xcb_dri2_connect_device_name_length (connect));
553
554 dri2_dpy->driver_name =
555 dri2_strndup(xcb_dri2_connect_driver_name (connect),
556 xcb_dri2_connect_driver_name_length (connect));
557
558 if (dri2_dpy->device_name == NULL || dri2_dpy->driver_name == NULL) {
559 free(dri2_dpy->device_name);
560 free(dri2_dpy->driver_name);
561 free(connect);
562 return EGL_FALSE;
563 }
564 free(connect);
565
566 return EGL_TRUE;
567 }
568
569 static EGLBoolean
570 dri2_authenticate(struct dri2_egl_display *dri2_dpy)
571 {
572 xcb_dri2_authenticate_reply_t *authenticate;
573 xcb_dri2_authenticate_cookie_t authenticate_cookie;
574 xcb_screen_iterator_t s;
575 drm_magic_t magic;
576
577 if (drmGetMagic(dri2_dpy->fd, &magic)) {
578 _eglLog(_EGL_FATAL, "DRI2: failed to get drm magic");
579 return EGL_FALSE;
580 }
581
582 s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
583 authenticate_cookie =
584 xcb_dri2_authenticate_unchecked(dri2_dpy->conn, s.data->root, magic);
585 authenticate =
586 xcb_dri2_authenticate_reply(dri2_dpy->conn, authenticate_cookie, NULL);
587 if (authenticate == NULL || !authenticate->authenticated) {
588 _eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
589 free(authenticate);
590 return EGL_FALSE;
591 }
592
593 free(authenticate);
594
595 return EGL_TRUE;
596 }
597
598 static EGLBoolean
599 dri2_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
600 _EGLDisplay *disp)
601 {
602 xcb_screen_iterator_t s;
603 xcb_depth_iterator_t d;
604 xcb_visualtype_t *visuals;
605 int i, j, id;
606
607 s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
608 d = xcb_screen_allowed_depths_iterator(s.data);
609 id = 1;
610 while (d.rem > 0) {
611 EGLBoolean class_added[6] = { 0, };
612
613 visuals = xcb_depth_visuals(d.data);
614 for (i = 0; i < xcb_depth_visuals_length(d.data); i++) {
615 if (class_added[visuals[i]._class])
616 continue;
617
618 class_added[visuals[i]._class] = EGL_TRUE;
619 for (j = 0; dri2_dpy->driver_configs[j]; j++)
620 dri2_add_config(disp, dri2_dpy->driver_configs[j],
621 id++, d.data->depth, &visuals[i]);
622 }
623
624 xcb_depth_next(&d);
625 }
626
627 if (!disp->NumConfigs) {
628 _eglLog(_EGL_WARNING, "DRI2: failed to create any config");
629 return EGL_FALSE;
630 }
631
632 return EGL_TRUE;
633 }
634
635 /**
636 * Called via eglInitialize(), GLX_drv->API.Initialize().
637 */
638 static EGLBoolean
639 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp,
640 EGLint *major, EGLint *minor)
641 {
642 const __DRIextension **extensions;
643 struct dri2_egl_display *dri2_dpy;
644 char path[PATH_MAX], *search_paths, *p, *next, *end;
645 unsigned int api_mask;
646
647 dri2_dpy = malloc(sizeof *dri2_dpy);
648 if (!dri2_dpy)
649 return _eglError(EGL_BAD_ALLOC, "eglInitialize");
650
651 disp->DriverData = (void *) dri2_dpy;
652 if (disp->NativeDisplay == NULL) {
653 dri2_dpy->conn = xcb_connect(0, 0);
654 if (!dri2_dpy->conn) {
655 _eglLog(_EGL_WARNING, "DRI2: xcb_connect failed");
656 goto cleanup_dpy;
657 }
658 } else {
659 dri2_dpy->conn = XGetXCBConnection(disp->NativeDisplay);
660 }
661
662 if (dri2_dpy->conn == NULL)
663 goto cleanup_conn;
664
665 if (dri2_dpy->conn) {
666 if (!dri2_connect(dri2_dpy))
667 goto cleanup_conn;
668 }
669
670 search_paths = NULL;
671 if (geteuid() == getuid()) {
672 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
673 search_paths = getenv("LIBGL_DRIVERS_PATH");
674 }
675 if (search_paths == NULL)
676 search_paths = DEFAULT_DRIVER_DIR;
677
678 dri2_dpy->driver = NULL;
679 end = search_paths + strlen(search_paths);
680 for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
681 next = strchr(p, ':');
682 if (next == NULL)
683 next = end;
684
685 snprintf(path, sizeof path,
686 dri_driver_format, (int) (next - p), p, dri2_dpy->driver_name);
687 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
688 if (dri2_dpy->driver == NULL)
689 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
690 }
691
692 if (dri2_dpy->driver == NULL) {
693 _eglLog(_EGL_WARNING,
694 "DRI2: failed to open any driver (search paths %s)",
695 search_paths);
696 goto cleanup_conn;
697 }
698
699 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
700 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
701 if (extensions == NULL) {
702 _eglLog(_EGL_WARNING,
703 "DRI2: driver exports no extensions (%s)", dlerror());
704 goto cleanup_driver;
705 }
706
707 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions))
708 goto cleanup_driver;
709
710 dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR);
711 if (dri2_dpy->fd == -1) {
712 _eglLog(_EGL_WARNING,
713 "DRI2: could not open %s (%s)", dri2_dpy->device_name,
714 strerror(errno));
715 goto cleanup_driver;
716 }
717
718 if (dri2_dpy->conn) {
719 if (!dri2_authenticate(dri2_dpy))
720 goto cleanup_fd;
721 }
722
723 if (dri2_dpy->dri2_minor >= 1) {
724 dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
725 dri2_dpy->loader_extension.base.version = 3;
726 dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
727 dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
728 dri2_dpy->loader_extension.getBuffersWithFormat =
729 dri2_get_buffers_with_format;
730 } else {
731 dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
732 dri2_dpy->loader_extension.base.version = 2;
733 dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
734 dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
735 dri2_dpy->loader_extension.getBuffersWithFormat = NULL;
736 }
737
738 dri2_dpy->image_lookup_extension.base.name = __DRI_IMAGE_LOOKUP;
739 dri2_dpy->image_lookup_extension.base.version = 1;
740 dri2_dpy->image_lookup_extension.lookupEGLImage = dri2_lookup_egl_image;
741
742 dri2_dpy->extensions[0] = &dri2_dpy->loader_extension.base;
743 dri2_dpy->extensions[1] = &dri2_dpy->image_lookup_extension.base;
744 dri2_dpy->extensions[2] = NULL;
745
746 dri2_dpy->dri_screen =
747 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
748 &dri2_dpy->driver_configs, dri2_dpy);
749
750 if (dri2_dpy->dri_screen == NULL) {
751 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
752 goto cleanup_fd;
753 }
754
755 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
756 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
757 goto cleanup_dri_screen;
758
759 if (dri2_dpy->dri2->base.version >= 2)
760 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
761 else
762 api_mask = __DRI_API_OPENGL;
763
764 disp->ClientAPIsMask = 0;
765 if (api_mask & (1 <<__DRI_API_OPENGL))
766 disp->ClientAPIsMask |= EGL_OPENGL_BIT;
767 if (api_mask & (1 <<__DRI_API_GLES))
768 disp->ClientAPIsMask |= EGL_OPENGL_ES_BIT;
769 if (api_mask & (1 << __DRI_API_GLES2))
770 disp->ClientAPIsMask |= EGL_OPENGL_ES2_BIT;
771
772 if (dri2_dpy->conn) {
773 if (!dri2_add_configs_for_visuals(dri2_dpy, disp))
774 goto cleanup_configs;
775 }
776
777 disp->Extensions.KHR_image_base = EGL_TRUE;
778 disp->Extensions.KHR_image_pixmap = EGL_TRUE;
779 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
780 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
781
782 /* we're supporting EGL 1.4 */
783 *major = 1;
784 *minor = 4;
785
786 return EGL_TRUE;
787
788 cleanup_configs:
789 _eglCleanupDisplay(disp);
790 cleanup_dri_screen:
791 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
792 cleanup_fd:
793 close(dri2_dpy->fd);
794 cleanup_driver:
795 dlclose(dri2_dpy->driver);
796 cleanup_conn:
797 if (disp->NativeDisplay == NULL)
798 xcb_disconnect(dri2_dpy->conn);
799 cleanup_dpy:
800 free(dri2_dpy);
801
802 return EGL_FALSE;
803 }
804
805 /**
806 * Called via eglTerminate(), drv->API.Terminate().
807 */
808 static EGLBoolean
809 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
810 {
811 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
812
813 _eglReleaseDisplayResources(drv, disp);
814 _eglCleanupDisplay(disp);
815
816 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
817 close(dri2_dpy->fd);
818 dlclose(dri2_dpy->driver);
819 if (disp->NativeDisplay == NULL)
820 xcb_disconnect(dri2_dpy->conn);
821 free(dri2_dpy);
822 disp->DriverData = NULL;
823
824 return EGL_TRUE;
825 }
826
827
828 /**
829 * Called via eglCreateContext(), drv->API.CreateContext().
830 */
831 static _EGLContext *
832 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
833 _EGLContext *share_list, const EGLint *attrib_list)
834 {
835 struct dri2_egl_context *dri2_ctx;
836 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
837 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
838 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
839 int api;
840
841 dri2_ctx = malloc(sizeof *dri2_ctx);
842 if (!dri2_ctx) {
843 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
844 return NULL;
845 }
846
847 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
848 goto cleanup;
849
850 switch (dri2_ctx->base.ClientAPI) {
851 case EGL_OPENGL_ES_API:
852 switch (dri2_ctx->base.ClientVersion) {
853 case 1:
854 api = __DRI_API_GLES;
855 break;
856 case 2:
857 api = __DRI_API_GLES2;
858 break;
859 default:
860 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
861 return NULL;
862 }
863 break;
864 case EGL_OPENGL_API:
865 api = __DRI_API_OPENGL;
866 break;
867 default:
868 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
869 return NULL;
870 }
871
872 if (dri2_dpy->dri2->base.version >= 2) {
873 dri2_ctx->dri_context =
874 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
875 api,
876 dri2_config->dri_config,
877 dri2_ctx_shared ?
878 dri2_ctx_shared->dri_context : NULL,
879 dri2_ctx);
880 } else if (api == __DRI_API_OPENGL) {
881 dri2_ctx->dri_context =
882 dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
883 dri2_config->dri_config,
884 dri2_ctx_shared ?
885 dri2_ctx_shared->dri_context : NULL,
886 dri2_ctx);
887 } else {
888 /* fail */
889 }
890
891 if (!dri2_ctx->dri_context)
892 goto cleanup;
893
894 return &dri2_ctx->base;
895
896 cleanup:
897 free(dri2_ctx);
898 return NULL;
899 }
900
901 static EGLBoolean
902 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
903 {
904 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
905 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
906
907 if (_eglIsSurfaceBound(surf))
908 return EGL_TRUE;
909
910 (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
911
912 xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->drawable);
913
914 if (surf->Type == EGL_PBUFFER_BIT)
915 xcb_free_pixmap (dri2_dpy->conn, dri2_surf->drawable);
916
917 free(surf);
918
919 return EGL_TRUE;
920 }
921
922 /**
923 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
924 */
925 static EGLBoolean
926 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
927 _EGLSurface *rsurf, _EGLContext *ctx)
928 {
929 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
930 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
931 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
932 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
933 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
934 __DRIdrawable *ddraw, *rdraw;
935 __DRIcontext *cctx;
936
937 /* bind the new context and return the "orphaned" one */
938 if (!_eglBindContext(&ctx, &dsurf, &rsurf))
939 return EGL_FALSE;
940
941 /* flush before context switch */
942 if (ctx && dri2_drv->glFlush)
943 dri2_drv->glFlush();
944
945 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
946 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
947 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
948
949 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
950 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
951 if (dsurf && !_eglIsSurfaceLinked(dsurf))
952 dri2_destroy_surface(drv, disp, dsurf);
953 if (rsurf && rsurf != dsurf && !_eglIsSurfaceLinked(dsurf))
954 dri2_destroy_surface(drv, disp, rsurf);
955 if (ctx != NULL && !_eglIsContextLinked(ctx))
956 dri2_dpy->core->unbindContext(dri2_egl_context(ctx)->dri_context);
957
958 return EGL_TRUE;
959 } else {
960 _eglBindContext(&ctx, &dsurf, &rsurf);
961
962 return EGL_FALSE;
963 }
964 }
965
966 /**
967 * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
968 */
969 static _EGLSurface *
970 dri2_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
971 _EGLConfig *conf, EGLNativeWindowType window,
972 const EGLint *attrib_list)
973 {
974 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
975 struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
976 struct dri2_egl_surface *dri2_surf;
977 xcb_get_geometry_cookie_t cookie;
978 xcb_get_geometry_reply_t *reply;
979 xcb_screen_iterator_t s;
980 xcb_generic_error_t *error;
981
982 dri2_surf = malloc(sizeof *dri2_surf);
983 if (!dri2_surf) {
984 _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
985 return NULL;
986 }
987
988 if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
989 goto cleanup_surf;
990
991 dri2_surf->region = XCB_NONE;
992 if (type == EGL_PBUFFER_BIT) {
993 dri2_surf->drawable = xcb_generate_id(dri2_dpy->conn);
994 s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
995 xcb_create_pixmap(dri2_dpy->conn,
996 _eglGetConfigKey(conf, EGL_BUFFER_SIZE),
997 dri2_surf->drawable, s.data->root,
998 dri2_surf->base.Width, dri2_surf->base.Height);
999 } else {
1000 dri2_surf->drawable = window;
1001 }
1002
1003 dri2_surf->dri_drawable =
1004 (*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen,
1005 dri2_conf->dri_config, dri2_surf);
1006 if (dri2_surf->dri_drawable == NULL) {
1007 _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
1008 goto cleanup_pixmap;
1009 }
1010
1011 xcb_dri2_create_drawable (dri2_dpy->conn, dri2_surf->drawable);
1012
1013 if (type != EGL_PBUFFER_BIT) {
1014 cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable);
1015 reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error);
1016 if (reply == NULL || error != NULL) {
1017 _eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
1018 free(error);
1019 goto cleanup_dri_drawable;
1020 }
1021
1022 dri2_surf->base.Width = reply->width;
1023 dri2_surf->base.Height = reply->height;
1024 free(reply);
1025 }
1026
1027 return &dri2_surf->base;
1028
1029 cleanup_dri_drawable:
1030 dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
1031 cleanup_pixmap:
1032 if (type == EGL_PBUFFER_BIT)
1033 xcb_free_pixmap(dri2_dpy->conn, dri2_surf->drawable);
1034 cleanup_surf:
1035 free(dri2_surf);
1036
1037 return NULL;
1038 }
1039
1040 /**
1041 * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
1042 */
1043 static _EGLSurface *
1044 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
1045 _EGLConfig *conf, EGLNativeWindowType window,
1046 const EGLint *attrib_list)
1047 {
1048 return dri2_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
1049 window, attrib_list);
1050 }
1051
1052 static _EGLSurface *
1053 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
1054 _EGLConfig *conf, EGLNativePixmapType pixmap,
1055 const EGLint *attrib_list)
1056 {
1057 return dri2_create_surface(drv, disp, EGL_PIXMAP_BIT, conf,
1058 pixmap, attrib_list);
1059 }
1060
1061 static _EGLSurface *
1062 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
1063 _EGLConfig *conf, const EGLint *attrib_list)
1064 {
1065 return dri2_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
1066 XCB_WINDOW_NONE, attrib_list);
1067 }
1068
1069 static EGLBoolean
1070 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
1071 {
1072 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1073 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1074 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
1075 _EGLContext *ctx;
1076 xcb_dri2_copy_region_cookie_t cookie;
1077
1078 if (dri2_drv->glFlush) {
1079 ctx = _eglGetCurrentContext();
1080 if (ctx && ctx->DrawSurface == &dri2_surf->base)
1081 dri2_drv->glFlush();
1082 }
1083
1084 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
1085
1086 #if 0
1087 /* FIXME: Add support for dri swapbuffers, that'll give us swap
1088 * interval and page flipping (at least for fullscreen windows) as
1089 * well as the page flip event. Unless surface->SwapBehavior is
1090 * EGL_BUFFER_PRESERVED. */
1091 #if __DRI2_FLUSH_VERSION >= 2
1092 if (pdraw->psc->f)
1093 (*pdraw->psc->f->flushInvalidate)(pdraw->driDrawable);
1094 #endif
1095 #endif
1096
1097 if (!dri2_surf->have_fake_front)
1098 return EGL_TRUE;
1099
1100 cookie = xcb_dri2_copy_region_unchecked(dri2_dpy->conn,
1101 dri2_surf->drawable,
1102 dri2_surf->region,
1103 XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT,
1104 XCB_DRI2_ATTACHMENT_BUFFER_FAKE_FRONT_LEFT);
1105 free(xcb_dri2_copy_region_reply(dri2_dpy->conn, cookie, NULL));
1106
1107 return EGL_TRUE;
1108 }
1109
1110 /*
1111 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1112 */
1113 static _EGLProc
1114 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1115 {
1116 /* FIXME: Do we need to support lookup of EGL symbols too? */
1117
1118 return (_EGLProc) _glapi_get_proc_address(procname);
1119 }
1120
1121 static EGLBoolean
1122 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1123 {
1124 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1125 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
1126
1127 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1128 * we need to copy fake to real here.*/
1129
1130 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
1131
1132 return EGL_TRUE;
1133 }
1134
1135 static EGLBoolean
1136 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1137 {
1138 if (engine != EGL_CORE_NATIVE_ENGINE)
1139 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1140 /* glXWaitX(); */
1141
1142 return EGL_TRUE;
1143 }
1144
1145 static void
1146 dri2_unload(_EGLDriver *drv)
1147 {
1148 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1149 free(dri2_drv);
1150 }
1151
1152 static EGLBoolean
1153 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1154 EGLNativePixmapType target)
1155 {
1156 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1157 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1158 xcb_gcontext_t gc;
1159
1160 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
1161
1162 gc = xcb_generate_id(dri2_dpy->conn);
1163 xcb_create_gc(dri2_dpy->conn, gc, target, 0, NULL);
1164 xcb_copy_area(dri2_dpy->conn,
1165 dri2_surf->drawable,
1166 target,
1167 gc,
1168 0, 0,
1169 0, 0,
1170 dri2_surf->base.Width,
1171 dri2_surf->base.Height);
1172 xcb_free_gc(dri2_dpy->conn, gc);
1173
1174 return EGL_TRUE;
1175 }
1176
1177 static EGLBoolean
1178 dri2_bind_tex_image(_EGLDriver *drv,
1179 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1180 {
1181 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1182 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1183 struct dri2_egl_context *dri2_ctx;
1184 _EGLContext *ctx;
1185 GLint format, target;
1186
1187 ctx = _eglGetCurrentContext();
1188 dri2_ctx = dri2_egl_context(ctx);
1189
1190 if (buffer != EGL_BACK_BUFFER) {
1191 _eglError(EGL_BAD_PARAMETER, "eglBindTexImage");
1192 return EGL_FALSE;
1193 }
1194
1195 /* We allow binding pixmaps too... Not conformat, but we can do it
1196 * for free and it's useful for X compositors. Supposedly there's
1197 * a EGL_NOKIA_texture_from_pixmap extension that allows that, but
1198 * I couldn't find it at this time. */
1199 if ((dri2_surf->base.Type & (EGL_PBUFFER_BIT | EGL_PIXMAP_BIT)) == 0) {
1200 _eglError(EGL_BAD_SURFACE, "eglBindTexImage");
1201 return EGL_FALSE;
1202 }
1203
1204 switch (dri2_surf->base.TextureFormat) {
1205 case EGL_TEXTURE_RGB:
1206 format = __DRI_TEXTURE_FORMAT_RGB;
1207 break;
1208 case EGL_TEXTURE_RGBA:
1209 format = __DRI_TEXTURE_FORMAT_RGBA;
1210 break;
1211 default:
1212 _eglError(EGL_BAD_MATCH, "eglBindTexImage");
1213 return EGL_FALSE;
1214 }
1215
1216 switch (dri2_surf->base.TextureTarget) {
1217 case EGL_TEXTURE_2D:
1218 target = GL_TEXTURE_2D;
1219 break;
1220 default:
1221 _eglError(EGL_BAD_PARAMETER, "eglBindTexImage");
1222 return EGL_FALSE;
1223 }
1224
1225 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1226 target, format,
1227 dri2_surf->dri_drawable);
1228
1229 return dri2_surf->base.BoundToTexture = EGL_TRUE;
1230 }
1231
1232 static EGLBoolean
1233 dri2_release_tex_image(_EGLDriver *drv,
1234 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1235 {
1236 return EGL_TRUE;
1237 }
1238
1239 static _EGLImage *
1240 dri2_create_image_khr_pixmap(_EGLDisplay *disp, _EGLContext *ctx,
1241 EGLClientBuffer buffer, const EGLint *attr_list)
1242 {
1243 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1244 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1245 struct dri2_egl_image *dri2_img;
1246 unsigned int attachments[1];
1247 xcb_drawable_t drawable;
1248 xcb_dri2_get_buffers_cookie_t buffers_cookie;
1249 xcb_dri2_get_buffers_reply_t *buffers_reply;
1250 xcb_dri2_dri2_buffer_t *buffers;
1251 xcb_get_geometry_cookie_t geometry_cookie;
1252 xcb_get_geometry_reply_t *geometry_reply;
1253 xcb_generic_error_t *error;
1254 int stride, format;
1255
1256 drawable = (xcb_drawable_t) buffer;
1257 xcb_dri2_create_drawable (dri2_dpy->conn, drawable);
1258 attachments[0] = XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT;
1259 buffers_cookie =
1260 xcb_dri2_get_buffers_unchecked (dri2_dpy->conn,
1261 drawable, 1, 1, attachments);
1262 geometry_cookie = xcb_get_geometry (dri2_dpy->conn, drawable);
1263 buffers_reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn,
1264 buffers_cookie, NULL);
1265 buffers = xcb_dri2_get_buffers_buffers (buffers_reply);
1266 if (buffers == NULL) {
1267 return NULL;
1268 }
1269
1270 geometry_reply = xcb_get_geometry_reply (dri2_dpy->conn,
1271 geometry_cookie, &error);
1272 if (geometry_reply == NULL || error != NULL) {
1273 _eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
1274 free(error);
1275 free(buffers_reply);
1276 }
1277
1278 switch (geometry_reply->depth) {
1279 case 16:
1280 format = __DRI_IMAGE_FORMAT_RGB565;
1281 break;
1282 case 24:
1283 format = __DRI_IMAGE_FORMAT_XRGB8888;
1284 break;
1285 case 32:
1286 format = __DRI_IMAGE_FORMAT_ARGB8888;
1287 break;
1288 default:
1289 _eglError(EGL_BAD_PARAMETER,
1290 "dri2_create_image_khr: unsupported pixmap depth");
1291 free(buffers_reply);
1292 free(geometry_reply);
1293 return NULL;
1294 }
1295
1296 dri2_img = malloc(sizeof *dri2_img);
1297 if (!dri2_img) {
1298 free(buffers_reply);
1299 free(geometry_reply);
1300 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1301 return EGL_NO_IMAGE_KHR;
1302 }
1303
1304 if (!_eglInitImage(&dri2_img->base, disp, attr_list)) {
1305 free(buffers_reply);
1306 free(geometry_reply);
1307 return EGL_NO_IMAGE_KHR;
1308 }
1309
1310 stride = buffers[0].pitch / buffers[0].cpp;
1311 dri2_img->dri_image =
1312 dri2_dpy->image->createImageFromName(dri2_ctx->dri_context,
1313 buffers_reply->width,
1314 buffers_reply->height,
1315 format,
1316 buffers[0].name,
1317 stride,
1318 dri2_img);
1319
1320 free(buffers_reply);
1321 free(geometry_reply);
1322
1323 return &dri2_img->base;
1324 }
1325
1326 static _EGLImage *
1327 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1328 EGLClientBuffer buffer,
1329 const EGLint *attr_list)
1330 {
1331 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1332 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1333 struct dri2_egl_image *dri2_img;
1334 GLuint renderbuffer = (GLuint) buffer;
1335
1336 if (renderbuffer == 0) {
1337 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1338 return EGL_NO_IMAGE_KHR;
1339 }
1340
1341 dri2_img = malloc(sizeof *dri2_img);
1342 if (!dri2_img) {
1343 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1344 return EGL_NO_IMAGE_KHR;
1345 }
1346
1347 if (!_eglInitImage(&dri2_img->base, disp, attr_list))
1348 return EGL_NO_IMAGE_KHR;
1349
1350 dri2_img->dri_image =
1351 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1352 renderbuffer,
1353 dri2_img);
1354
1355 return &dri2_img->base;
1356 }
1357
1358 static _EGLImage *
1359 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1360 _EGLContext *ctx, EGLenum target,
1361 EGLClientBuffer buffer, const EGLint *attr_list)
1362 {
1363 switch (target) {
1364 case EGL_NATIVE_PIXMAP_KHR:
1365 return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list);
1366 case EGL_GL_RENDERBUFFER_KHR:
1367 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1368 default:
1369 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1370 return EGL_NO_IMAGE_KHR;
1371 }
1372 }
1373
1374 static EGLBoolean
1375 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1376 {
1377 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1378 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1379
1380 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1381 free(dri2_img);
1382
1383 return EGL_TRUE;
1384 }
1385
1386 /**
1387 * This is the main entrypoint into the driver, called by libEGL.
1388 * Create a new _EGLDriver object and init its dispatch table.
1389 */
1390 _EGLDriver *
1391 _eglMain(const char *args)
1392 {
1393 struct dri2_egl_driver *dri2_drv;
1394
1395 dri2_drv = malloc(sizeof *dri2_drv);
1396 if (!dri2_drv)
1397 return NULL;
1398
1399 memset(dri2_drv, 0, sizeof *dri2_drv);
1400 _eglInitDriverFallbacks(&dri2_drv->base);
1401 dri2_drv->base.API.Initialize = dri2_initialize;
1402 dri2_drv->base.API.Terminate = dri2_terminate;
1403 dri2_drv->base.API.CreateContext = dri2_create_context;
1404 dri2_drv->base.API.MakeCurrent = dri2_make_current;
1405 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
1406 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
1407 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
1408 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
1409 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
1410 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
1411 dri2_drv->base.API.WaitClient = dri2_wait_client;
1412 dri2_drv->base.API.WaitNative = dri2_wait_native;
1413 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers;
1414 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
1415 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
1416 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
1417 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
1418
1419 dri2_drv->base.Name = "DRI2";
1420 dri2_drv->base.Unload = dri2_unload;
1421
1422 dri2_drv->glFlush =
1423 (void (*)(void)) dri2_get_proc_address(&dri2_drv->base, "glFlush");
1424
1425 return &dri2_drv->base;
1426 }