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egl: Implement EGL_NOK_texture_from_pixmap
[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 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
55
56 struct dri2_egl_driver
57 {
58 _EGLDriver base;
59
60 void (*glFlush)(void);
61 };
62
63 struct dri2_egl_display
64 {
65 xcb_connection_t *conn;
66 int dri2_major;
67 int dri2_minor;
68 __DRIscreen *dri_screen;
69 const __DRIconfig **driver_configs;
70 void *driver;
71 __DRIcoreExtension *core;
72 __DRIdri2Extension *dri2;
73 __DRI2flushExtension *flush;
74 __DRItexBufferExtension *tex_buffer;
75 __DRIimageExtension *image;
76 int fd;
77
78 char *device_name;
79 char *driver_name;
80
81 __DRIdri2LoaderExtension loader_extension;
82 __DRIimageLookupExtension image_lookup_extension;
83 const __DRIextension *extensions[3];
84 };
85
86 struct dri2_egl_context
87 {
88 _EGLContext base;
89 __DRIcontext *dri_context;
90 };
91
92 struct dri2_egl_surface
93 {
94 _EGLSurface base;
95 __DRIdrawable *dri_drawable;
96 xcb_drawable_t drawable;
97 __DRIbuffer buffers[5];
98 int buffer_count;
99 xcb_xfixes_region_t region;
100 int have_fake_front;
101 int swap_interval;
102 };
103
104 struct dri2_egl_config
105 {
106 _EGLConfig base;
107 const __DRIconfig *dri_config;
108 };
109
110 struct dri2_egl_image
111 {
112 _EGLImage base;
113 __DRIimage *dri_image;
114 };
115
116 /* standard typecasts */
117 _EGL_DRIVER_STANDARD_TYPECASTS(dri2_egl)
118 _EGL_DRIVER_TYPECAST(dri2_egl_image, _EGLImage, obj)
119
120 EGLint dri2_to_egl_attribute_map[] = {
121 0,
122 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
123 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
124 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
125 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
126 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
127 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
128 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
129 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
130 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
131 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
132 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
133 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
134 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
135 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
136 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
137 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
138 0, /* __DRI_ATTRIB_RENDER_TYPE, */
139 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
140 0, /* __DRI_ATTRIB_CONFORMANT */
141 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
142 0, /* __DRI_ATTRIB_STEREO */
143 0, /* __DRI_ATTRIB_AUX_BUFFERS */
144 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
145 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
146 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
147 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
148 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
149 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
150 0, /* __DRI_ATTRIB_FLOAT_MODE */
151 0, /* __DRI_ATTRIB_RED_MASK */
152 0, /* __DRI_ATTRIB_GREEN_MASK */
153 0, /* __DRI_ATTRIB_BLUE_MASK */
154 0, /* __DRI_ATTRIB_ALPHA_MASK */
155 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
156 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
157 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
158 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
159 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
160 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
161 0, /* __DRI_ATTRIB_SWAP_METHOD */
162 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
163 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
164 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
165 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
166 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
167 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
168 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
169 };
170
171 static void
172 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
173 int depth, xcb_visualtype_t *visual)
174 {
175 struct dri2_egl_config *conf;
176 struct dri2_egl_display *dri2_dpy;
177 _EGLConfig base;
178 unsigned int attrib, value, double_buffer;
179 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
180 int i;
181
182 dri2_dpy = disp->DriverData;
183 _eglInitConfig(&base, disp, id);
184
185 i = 0;
186 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
187 switch (attrib) {
188 case __DRI_ATTRIB_RENDER_TYPE:
189 if (value & __DRI_ATTRIB_RGBA_BIT)
190 value = EGL_RGB_BUFFER;
191 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
192 value = EGL_LUMINANCE_BUFFER;
193 else
194 /* not valid */;
195 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
196 break;
197
198 case __DRI_ATTRIB_CONFIG_CAVEAT:
199 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
200 value = EGL_NON_CONFORMANT_CONFIG;
201 else if (value & __DRI_ATTRIB_SLOW_BIT)
202 value = EGL_SLOW_CONFIG;
203 else
204 value = EGL_NONE;
205 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
206 break;
207
208 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
209 bind_to_texture_rgb = value;
210 break;
211
212 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
213 bind_to_texture_rgba = value;
214 break;
215
216 case __DRI_ATTRIB_DOUBLE_BUFFER:
217 double_buffer = value;
218 break;
219
220 default:
221 key = dri2_to_egl_attribute_map[attrib];
222 if (key != 0)
223 _eglSetConfigKey(&base, key, value);
224 break;
225 }
226 }
227
228 /* In EGL, double buffer or not isn't a config attribute. Pixmaps
229 * surfaces are always single buffered, pbuffer surfaces are always
230 * back buffers and windows can be either, selected by passing an
231 * attribute at window surface construction time. To support this
232 * we ignore all double buffer configs and manipulate the buffer we
233 * return in the getBuffer callback to get the behaviour we want. */
234
235 if (double_buffer)
236 return;
237
238 if (visual != NULL) {
239 if (depth != _eglGetConfigKey(&base, EGL_BUFFER_SIZE))
240 return;
241
242 _eglSetConfigKey(&base, EGL_SURFACE_TYPE,
243 EGL_WINDOW_BIT | EGL_PIXMAP_BIT | EGL_PBUFFER_BIT |
244 EGL_SWAP_BEHAVIOR_PRESERVED_BIT);
245
246 _eglSetConfigKey(&base, EGL_NATIVE_VISUAL_ID, visual->visual_id);
247 _eglSetConfigKey(&base, EGL_NATIVE_VISUAL_TYPE, visual->_class);
248 } else {
249 _eglSetConfigKey(&base, EGL_SURFACE_TYPE,
250 EGL_PIXMAP_BIT | EGL_PBUFFER_BIT);
251 }
252
253 _eglSetConfigKey(&base, EGL_NATIVE_RENDERABLE, EGL_TRUE);
254 _eglSetConfigKey(&base, EGL_BIND_TO_TEXTURE_RGB, bind_to_texture_rgb);
255 if (_eglGetConfigKey(&base, EGL_ALPHA_SIZE) > 0)
256 _eglSetConfigKey(&base,
257 EGL_BIND_TO_TEXTURE_RGBA, bind_to_texture_rgba);
258
259 _eglSetConfigKey(&base, EGL_RENDERABLE_TYPE, disp->ClientAPIsMask);
260 _eglSetConfigKey(&base, EGL_CONFORMANT, disp->ClientAPIsMask);
261
262 if (!_eglValidateConfig(&base, EGL_FALSE)) {
263 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
264 return;
265 }
266
267 conf = malloc(sizeof *conf);
268 if (conf != NULL) {
269 memcpy(&conf->base, &base, sizeof base);
270 conf->dri_config = dri_config;
271 _eglAddConfig(disp, &conf->base);
272 }
273 }
274
275 /**
276 * Process list of buffer received from the server
277 *
278 * Processes the list of buffers received in a reply from the server to either
279 * \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat.
280 */
281 static void
282 dri2_process_buffers(struct dri2_egl_surface *dri2_surf,
283 xcb_dri2_dri2_buffer_t *buffers, unsigned count)
284 {
285 struct dri2_egl_display *dri2_dpy =
286 dri2_egl_display(dri2_surf->base.Resource.Display);
287 xcb_rectangle_t rectangle;
288 int i;
289
290 dri2_surf->buffer_count = count;
291 dri2_surf->have_fake_front = 0;
292
293 /* This assumes the DRI2 buffer attachment tokens matches the
294 * __DRIbuffer tokens. */
295 for (i = 0; i < count; i++) {
296 dri2_surf->buffers[i].attachment = buffers[i].attachment;
297 dri2_surf->buffers[i].name = buffers[i].name;
298 dri2_surf->buffers[i].pitch = buffers[i].pitch;
299 dri2_surf->buffers[i].cpp = buffers[i].cpp;
300 dri2_surf->buffers[i].flags = buffers[i].flags;
301
302 /* We only use the DRI drivers single buffer configs. This
303 * means that if we try to render to a window, DRI2 will give us
304 * the fake front buffer, which we'll use as a back buffer.
305 * Note that EGL doesn't require that several clients rendering
306 * to the same window must see the same aux buffers. */
307 if (dri2_surf->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT)
308 dri2_surf->have_fake_front = 1;
309 }
310
311 if (dri2_surf->region != XCB_NONE)
312 xcb_xfixes_destroy_region(dri2_dpy->conn, dri2_surf->region);
313
314 rectangle.x = 0;
315 rectangle.y = 0;
316 rectangle.width = dri2_surf->base.Width;
317 rectangle.height = dri2_surf->base.Height;
318 dri2_surf->region = xcb_generate_id(dri2_dpy->conn);
319 xcb_xfixes_create_region(dri2_dpy->conn, dri2_surf->region, 1, &rectangle);
320 }
321
322 static __DRIbuffer *
323 dri2_get_buffers(__DRIdrawable * driDrawable,
324 int *width, int *height,
325 unsigned int *attachments, int count,
326 int *out_count, void *loaderPrivate)
327 {
328 struct dri2_egl_surface *dri2_surf = loaderPrivate;
329 struct dri2_egl_display *dri2_dpy =
330 dri2_egl_display(dri2_surf->base.Resource.Display);
331 xcb_dri2_dri2_buffer_t *buffers;
332 xcb_dri2_get_buffers_reply_t *reply;
333 xcb_dri2_get_buffers_cookie_t cookie;
334
335 cookie = xcb_dri2_get_buffers_unchecked (dri2_dpy->conn,
336 dri2_surf->drawable,
337 count, count, attachments);
338 reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn, cookie, NULL);
339 buffers = xcb_dri2_get_buffers_buffers (reply);
340 if (buffers == NULL)
341 return NULL;
342
343 *out_count = reply->count;
344 dri2_surf->base.Width = *width = reply->width;
345 dri2_surf->base.Height = *height = reply->height;
346 dri2_process_buffers(dri2_surf, buffers, *out_count);
347
348 free(reply);
349
350 return dri2_surf->buffers;
351 }
352
353 static void
354 dri2_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
355 {
356 /* FIXME: Does EGL support front buffer rendering at all? */
357
358 #if 0
359 struct dri2_egl_surface *dri2_surf = loaderPrivate;
360
361 dri2WaitGL(dri2_surf);
362 #endif
363 }
364
365 static __DRIimage *
366 dri2_lookup_egl_image(__DRIcontext *context, void *image, void *data)
367 {
368 struct dri2_egl_context *dri2_ctx = data;
369 _EGLDisplay *disp = dri2_ctx->base.Resource.Display;
370 struct dri2_egl_image *dri2_img;
371 _EGLImage *img;
372
373 img = _eglLookupImage(image, disp);
374 if (img == NULL) {
375 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
376 return NULL;
377 }
378
379 dri2_img = dri2_egl_image(image);
380
381 return dri2_img->dri_image;
382 }
383
384 static __DRIbuffer *
385 dri2_get_buffers_with_format(__DRIdrawable * driDrawable,
386 int *width, int *height,
387 unsigned int *attachments, int count,
388 int *out_count, void *loaderPrivate)
389 {
390 struct dri2_egl_surface *dri2_surf = loaderPrivate;
391 struct dri2_egl_display *dri2_dpy =
392 dri2_egl_display(dri2_surf->base.Resource.Display);
393 xcb_dri2_dri2_buffer_t *buffers;
394 xcb_dri2_get_buffers_with_format_reply_t *reply;
395 xcb_dri2_get_buffers_with_format_cookie_t cookie;
396 xcb_dri2_attach_format_t *format_attachments;
397
398 format_attachments = (xcb_dri2_attach_format_t *) attachments;
399 cookie = xcb_dri2_get_buffers_with_format_unchecked (dri2_dpy->conn,
400 dri2_surf->drawable,
401 count, count,
402 format_attachments);
403
404 reply = xcb_dri2_get_buffers_with_format_reply (dri2_dpy->conn,
405 cookie, NULL);
406 if (reply == NULL)
407 return NULL;
408
409 buffers = xcb_dri2_get_buffers_with_format_buffers (reply);
410 dri2_surf->base.Width = *width = reply->width;
411 dri2_surf->base.Height = *height = reply->height;
412 *out_count = reply->count;
413 dri2_process_buffers(dri2_surf, buffers, *out_count);
414
415 free(reply);
416
417 return dri2_surf->buffers;
418 }
419
420 #ifdef GLX_USE_TLS
421 static const char dri_driver_format[] = "%.*s/tls/%s_dri.so";
422 #else
423 static const char dri_driver_format[] = "%.*s/%s_dri.so";
424 #endif
425
426 static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
427
428 struct dri2_extension_match {
429 const char *name;
430 int version;
431 int offset;
432 };
433
434 static struct dri2_extension_match dri2_driver_extensions[] = {
435 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
436 { __DRI_DRI2, 1, offsetof(struct dri2_egl_display, dri2) },
437 { NULL }
438 };
439
440 static struct dri2_extension_match dri2_core_extensions[] = {
441 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
442 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
443 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
444 { NULL }
445 };
446
447 static EGLBoolean
448 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
449 struct dri2_extension_match *matches,
450 const __DRIextension **extensions)
451 {
452 int i, j, ret = EGL_TRUE;
453 void *field;
454
455 for (i = 0; extensions[i]; i++) {
456 _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
457 for (j = 0; matches[j].name; j++) {
458 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
459 extensions[i]->version >= matches[j].version) {
460 field = ((char *) dri2_dpy + matches[j].offset);
461 *(const __DRIextension **) field = extensions[i];
462 _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
463 extensions[i]->name, extensions[i]->version);
464 }
465 }
466 }
467
468 for (j = 0; matches[j].name; j++) {
469 field = ((char *) dri2_dpy + matches[j].offset);
470 if (*(const __DRIextension **) field == NULL) {
471 _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
472 matches[j].name, matches[j].version);
473 ret = EGL_FALSE;
474 }
475 }
476
477 return ret;
478 }
479
480 static char *
481 dri2_strndup(const char *s, int length)
482 {
483 char *d;
484
485 d = malloc(length + 1);
486 if (d == NULL)
487 return NULL;
488
489 memcpy(d, s, length);
490 d[length] = '\0';
491
492 return d;
493 }
494
495 static EGLBoolean
496 dri2_connect(struct dri2_egl_display *dri2_dpy)
497 {
498 xcb_xfixes_query_version_reply_t *xfixes_query;
499 xcb_xfixes_query_version_cookie_t xfixes_query_cookie;
500 xcb_dri2_query_version_reply_t *dri2_query;
501 xcb_dri2_query_version_cookie_t dri2_query_cookie;
502 xcb_dri2_connect_reply_t *connect;
503 xcb_dri2_connect_cookie_t connect_cookie;
504 xcb_generic_error_t *error;
505 xcb_screen_iterator_t s;
506
507 xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id);
508 xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id);
509
510 xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn,
511 XCB_XFIXES_MAJOR_VERSION,
512 XCB_XFIXES_MINOR_VERSION);
513
514 dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn,
515 XCB_DRI2_MAJOR_VERSION,
516 XCB_DRI2_MINOR_VERSION);
517
518 s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
519 connect_cookie = xcb_dri2_connect_unchecked (dri2_dpy->conn,
520 s.data->root,
521 XCB_DRI2_DRIVER_TYPE_DRI);
522
523 xfixes_query =
524 xcb_xfixes_query_version_reply (dri2_dpy->conn,
525 xfixes_query_cookie, &error);
526 if (xfixes_query == NULL ||
527 error != NULL || xfixes_query->major_version < 2) {
528 _eglLog(_EGL_FATAL, "DRI2: failed to query xfixes version");
529 free(error);
530 return EGL_FALSE;
531 }
532 free(xfixes_query);
533
534 dri2_query =
535 xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error);
536 if (dri2_query == NULL || error != NULL) {
537 _eglLog(_EGL_FATAL, "DRI2: failed to query version");
538 free(error);
539 return EGL_FALSE;
540 }
541 dri2_dpy->dri2_major = dri2_query->major_version;
542 dri2_dpy->dri2_minor = dri2_query->minor_version;
543 free(dri2_query);
544
545 connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL);
546 if (connect == NULL ||
547 connect->driver_name_length + connect->device_name_length == 0) {
548 _eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
549 return EGL_FALSE;
550 }
551
552 dri2_dpy->device_name =
553 dri2_strndup(xcb_dri2_connect_device_name (connect),
554 xcb_dri2_connect_device_name_length (connect));
555
556 dri2_dpy->driver_name =
557 dri2_strndup(xcb_dri2_connect_driver_name (connect),
558 xcb_dri2_connect_driver_name_length (connect));
559
560 if (dri2_dpy->device_name == NULL || dri2_dpy->driver_name == NULL) {
561 free(dri2_dpy->device_name);
562 free(dri2_dpy->driver_name);
563 free(connect);
564 return EGL_FALSE;
565 }
566 free(connect);
567
568 return EGL_TRUE;
569 }
570
571 static EGLBoolean
572 dri2_authenticate(struct dri2_egl_display *dri2_dpy)
573 {
574 xcb_dri2_authenticate_reply_t *authenticate;
575 xcb_dri2_authenticate_cookie_t authenticate_cookie;
576 xcb_screen_iterator_t s;
577 drm_magic_t magic;
578
579 if (drmGetMagic(dri2_dpy->fd, &magic)) {
580 _eglLog(_EGL_FATAL, "DRI2: failed to get drm magic");
581 return EGL_FALSE;
582 }
583
584 s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
585 authenticate_cookie =
586 xcb_dri2_authenticate_unchecked(dri2_dpy->conn, s.data->root, magic);
587 authenticate =
588 xcb_dri2_authenticate_reply(dri2_dpy->conn, authenticate_cookie, NULL);
589 if (authenticate == NULL || !authenticate->authenticated) {
590 _eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
591 free(authenticate);
592 return EGL_FALSE;
593 }
594
595 free(authenticate);
596
597 return EGL_TRUE;
598 }
599
600 static EGLBoolean
601 dri2_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
602 _EGLDisplay *disp)
603 {
604 xcb_screen_iterator_t s;
605 xcb_depth_iterator_t d;
606 xcb_visualtype_t *visuals;
607 int i, j, id;
608
609 s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
610 d = xcb_screen_allowed_depths_iterator(s.data);
611 id = 1;
612 while (d.rem > 0) {
613 EGLBoolean class_added[6] = { 0, };
614
615 visuals = xcb_depth_visuals(d.data);
616 for (i = 0; i < xcb_depth_visuals_length(d.data); i++) {
617 if (class_added[visuals[i]._class])
618 continue;
619
620 class_added[visuals[i]._class] = EGL_TRUE;
621 for (j = 0; dri2_dpy->driver_configs[j]; j++)
622 dri2_add_config(disp, dri2_dpy->driver_configs[j],
623 id++, d.data->depth, &visuals[i]);
624 }
625
626 xcb_depth_next(&d);
627 }
628
629 if (!disp->NumConfigs) {
630 _eglLog(_EGL_WARNING, "DRI2: failed to create any config");
631 return EGL_FALSE;
632 }
633
634 return EGL_TRUE;
635 }
636
637 /**
638 * Called via eglInitialize(), GLX_drv->API.Initialize().
639 */
640 static EGLBoolean
641 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp,
642 EGLint *major, EGLint *minor)
643 {
644 const __DRIextension **extensions;
645 struct dri2_egl_display *dri2_dpy;
646 char path[PATH_MAX], *search_paths, *p, *next, *end;
647 unsigned int api_mask;
648
649 dri2_dpy = malloc(sizeof *dri2_dpy);
650 if (!dri2_dpy)
651 return _eglError(EGL_BAD_ALLOC, "eglInitialize");
652
653 disp->DriverData = (void *) dri2_dpy;
654 if (disp->NativeDisplay == NULL) {
655 dri2_dpy->conn = xcb_connect(0, 0);
656 if (!dri2_dpy->conn) {
657 _eglLog(_EGL_WARNING, "DRI2: xcb_connect failed");
658 goto cleanup_dpy;
659 }
660 } else {
661 dri2_dpy->conn = XGetXCBConnection(disp->NativeDisplay);
662 }
663
664 if (dri2_dpy->conn == NULL)
665 goto cleanup_conn;
666
667 if (dri2_dpy->conn) {
668 if (!dri2_connect(dri2_dpy))
669 goto cleanup_conn;
670 }
671
672 search_paths = NULL;
673 if (geteuid() == getuid()) {
674 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
675 search_paths = getenv("LIBGL_DRIVERS_PATH");
676 }
677 if (search_paths == NULL)
678 search_paths = DEFAULT_DRIVER_DIR;
679
680 dri2_dpy->driver = NULL;
681 end = search_paths + strlen(search_paths);
682 for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
683 next = strchr(p, ':');
684 if (next == NULL)
685 next = end;
686
687 snprintf(path, sizeof path,
688 dri_driver_format, (int) (next - p), p, dri2_dpy->driver_name);
689 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
690 if (dri2_dpy->driver == NULL)
691 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
692 }
693
694 if (dri2_dpy->driver == NULL) {
695 _eglLog(_EGL_WARNING,
696 "DRI2: failed to open any driver (search paths %s)",
697 search_paths);
698 goto cleanup_conn;
699 }
700
701 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
702 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
703 if (extensions == NULL) {
704 _eglLog(_EGL_WARNING,
705 "DRI2: driver exports no extensions (%s)", dlerror());
706 goto cleanup_driver;
707 }
708
709 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions))
710 goto cleanup_driver;
711
712 dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR);
713 if (dri2_dpy->fd == -1) {
714 _eglLog(_EGL_WARNING,
715 "DRI2: could not open %s (%s)", dri2_dpy->device_name,
716 strerror(errno));
717 goto cleanup_driver;
718 }
719
720 if (dri2_dpy->conn) {
721 if (!dri2_authenticate(dri2_dpy))
722 goto cleanup_fd;
723 }
724
725 if (dri2_dpy->dri2_minor >= 1) {
726 dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
727 dri2_dpy->loader_extension.base.version = 3;
728 dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
729 dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
730 dri2_dpy->loader_extension.getBuffersWithFormat =
731 dri2_get_buffers_with_format;
732 } else {
733 dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
734 dri2_dpy->loader_extension.base.version = 2;
735 dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
736 dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
737 dri2_dpy->loader_extension.getBuffersWithFormat = NULL;
738 }
739
740 dri2_dpy->image_lookup_extension.base.name = __DRI_IMAGE_LOOKUP;
741 dri2_dpy->image_lookup_extension.base.version = 1;
742 dri2_dpy->image_lookup_extension.lookupEGLImage = dri2_lookup_egl_image;
743
744 dri2_dpy->extensions[0] = &dri2_dpy->loader_extension.base;
745 dri2_dpy->extensions[1] = &dri2_dpy->image_lookup_extension.base;
746 dri2_dpy->extensions[2] = NULL;
747
748 dri2_dpy->dri_screen =
749 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
750 &dri2_dpy->driver_configs, dri2_dpy);
751
752 if (dri2_dpy->dri_screen == NULL) {
753 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
754 goto cleanup_fd;
755 }
756
757 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
758 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
759 goto cleanup_dri_screen;
760
761 if (dri2_dpy->dri2->base.version >= 2)
762 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
763 else
764 api_mask = __DRI_API_OPENGL;
765
766 disp->ClientAPIsMask = 0;
767 if (api_mask & (1 <<__DRI_API_OPENGL))
768 disp->ClientAPIsMask |= EGL_OPENGL_BIT;
769 if (api_mask & (1 <<__DRI_API_GLES))
770 disp->ClientAPIsMask |= EGL_OPENGL_ES_BIT;
771 if (api_mask & (1 << __DRI_API_GLES2))
772 disp->ClientAPIsMask |= EGL_OPENGL_ES2_BIT;
773
774 if (dri2_dpy->conn) {
775 if (!dri2_add_configs_for_visuals(dri2_dpy, disp))
776 goto cleanup_configs;
777 }
778
779 disp->Extensions.KHR_image_base = EGL_TRUE;
780 disp->Extensions.KHR_image_pixmap = EGL_TRUE;
781 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
782 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
783 disp->Extensions.NOK_swap_region = EGL_TRUE;
784 disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE;
785
786 /* we're supporting EGL 1.4 */
787 *major = 1;
788 *minor = 4;
789
790 return EGL_TRUE;
791
792 cleanup_configs:
793 _eglCleanupDisplay(disp);
794 cleanup_dri_screen:
795 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
796 cleanup_fd:
797 close(dri2_dpy->fd);
798 cleanup_driver:
799 dlclose(dri2_dpy->driver);
800 cleanup_conn:
801 if (disp->NativeDisplay == NULL)
802 xcb_disconnect(dri2_dpy->conn);
803 cleanup_dpy:
804 free(dri2_dpy);
805
806 return EGL_FALSE;
807 }
808
809 /**
810 * Called via eglTerminate(), drv->API.Terminate().
811 */
812 static EGLBoolean
813 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
814 {
815 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
816
817 _eglReleaseDisplayResources(drv, disp);
818 _eglCleanupDisplay(disp);
819
820 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
821 close(dri2_dpy->fd);
822 dlclose(dri2_dpy->driver);
823 if (disp->NativeDisplay == NULL)
824 xcb_disconnect(dri2_dpy->conn);
825 free(dri2_dpy);
826 disp->DriverData = NULL;
827
828 return EGL_TRUE;
829 }
830
831
832 /**
833 * Called via eglCreateContext(), drv->API.CreateContext().
834 */
835 static _EGLContext *
836 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
837 _EGLContext *share_list, const EGLint *attrib_list)
838 {
839 struct dri2_egl_context *dri2_ctx;
840 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
841 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
842 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
843 int api;
844
845 dri2_ctx = malloc(sizeof *dri2_ctx);
846 if (!dri2_ctx) {
847 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
848 return NULL;
849 }
850
851 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
852 goto cleanup;
853
854 switch (dri2_ctx->base.ClientAPI) {
855 case EGL_OPENGL_ES_API:
856 switch (dri2_ctx->base.ClientVersion) {
857 case 1:
858 api = __DRI_API_GLES;
859 break;
860 case 2:
861 api = __DRI_API_GLES2;
862 break;
863 default:
864 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
865 return NULL;
866 }
867 break;
868 case EGL_OPENGL_API:
869 api = __DRI_API_OPENGL;
870 break;
871 default:
872 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
873 return NULL;
874 }
875
876 if (dri2_dpy->dri2->base.version >= 2) {
877 dri2_ctx->dri_context =
878 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
879 api,
880 dri2_config->dri_config,
881 dri2_ctx_shared ?
882 dri2_ctx_shared->dri_context : NULL,
883 dri2_ctx);
884 } else if (api == __DRI_API_OPENGL) {
885 dri2_ctx->dri_context =
886 dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
887 dri2_config->dri_config,
888 dri2_ctx_shared ?
889 dri2_ctx_shared->dri_context : NULL,
890 dri2_ctx);
891 } else {
892 /* fail */
893 }
894
895 if (!dri2_ctx->dri_context)
896 goto cleanup;
897
898 return &dri2_ctx->base;
899
900 cleanup:
901 free(dri2_ctx);
902 return NULL;
903 }
904
905 static EGLBoolean
906 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
907 {
908 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
909 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
910
911 if (_eglIsSurfaceBound(surf))
912 return EGL_TRUE;
913
914 (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
915
916 xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->drawable);
917
918 if (surf->Type == EGL_PBUFFER_BIT)
919 xcb_free_pixmap (dri2_dpy->conn, dri2_surf->drawable);
920
921 free(surf);
922
923 return EGL_TRUE;
924 }
925
926 /**
927 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
928 */
929 static EGLBoolean
930 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
931 _EGLSurface *rsurf, _EGLContext *ctx)
932 {
933 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
934 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
935 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
936 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
937 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
938 __DRIdrawable *ddraw, *rdraw;
939 __DRIcontext *cctx;
940
941 /* bind the new context and return the "orphaned" one */
942 if (!_eglBindContext(&ctx, &dsurf, &rsurf))
943 return EGL_FALSE;
944
945 /* flush before context switch */
946 if (ctx && dri2_drv->glFlush)
947 dri2_drv->glFlush();
948
949 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
950 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
951 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
952
953 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
954 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
955 if (dsurf && !_eglIsSurfaceLinked(dsurf))
956 dri2_destroy_surface(drv, disp, dsurf);
957 if (rsurf && rsurf != dsurf && !_eglIsSurfaceLinked(dsurf))
958 dri2_destroy_surface(drv, disp, rsurf);
959 if (ctx != NULL && !_eglIsContextLinked(ctx))
960 dri2_dpy->core->unbindContext(dri2_egl_context(ctx)->dri_context);
961
962 return EGL_TRUE;
963 } else {
964 _eglBindContext(&ctx, &dsurf, &rsurf);
965
966 return EGL_FALSE;
967 }
968 }
969
970 /**
971 * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
972 */
973 static _EGLSurface *
974 dri2_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
975 _EGLConfig *conf, EGLNativeWindowType window,
976 const EGLint *attrib_list)
977 {
978 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
979 struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
980 struct dri2_egl_surface *dri2_surf;
981 xcb_get_geometry_cookie_t cookie;
982 xcb_get_geometry_reply_t *reply;
983 xcb_screen_iterator_t s;
984 xcb_generic_error_t *error;
985
986 dri2_surf = malloc(sizeof *dri2_surf);
987 if (!dri2_surf) {
988 _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
989 return NULL;
990 }
991
992 if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
993 goto cleanup_surf;
994
995 dri2_surf->region = XCB_NONE;
996 if (type == EGL_PBUFFER_BIT) {
997 dri2_surf->drawable = xcb_generate_id(dri2_dpy->conn);
998 s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
999 xcb_create_pixmap(dri2_dpy->conn,
1000 _eglGetConfigKey(conf, EGL_BUFFER_SIZE),
1001 dri2_surf->drawable, s.data->root,
1002 dri2_surf->base.Width, dri2_surf->base.Height);
1003 } else {
1004 dri2_surf->drawable = window;
1005 }
1006
1007 dri2_surf->dri_drawable =
1008 (*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen,
1009 dri2_conf->dri_config, dri2_surf);
1010 if (dri2_surf->dri_drawable == NULL) {
1011 _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
1012 goto cleanup_pixmap;
1013 }
1014
1015 xcb_dri2_create_drawable (dri2_dpy->conn, dri2_surf->drawable);
1016
1017 if (type != EGL_PBUFFER_BIT) {
1018 cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable);
1019 reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error);
1020 if (reply == NULL || error != NULL) {
1021 _eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
1022 free(error);
1023 goto cleanup_dri_drawable;
1024 }
1025
1026 dri2_surf->base.Width = reply->width;
1027 dri2_surf->base.Height = reply->height;
1028 free(reply);
1029 }
1030
1031 return &dri2_surf->base;
1032
1033 cleanup_dri_drawable:
1034 dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
1035 cleanup_pixmap:
1036 if (type == EGL_PBUFFER_BIT)
1037 xcb_free_pixmap(dri2_dpy->conn, dri2_surf->drawable);
1038 cleanup_surf:
1039 free(dri2_surf);
1040
1041 return NULL;
1042 }
1043
1044 /**
1045 * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
1046 */
1047 static _EGLSurface *
1048 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
1049 _EGLConfig *conf, EGLNativeWindowType window,
1050 const EGLint *attrib_list)
1051 {
1052 return dri2_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
1053 window, attrib_list);
1054 }
1055
1056 static _EGLSurface *
1057 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
1058 _EGLConfig *conf, EGLNativePixmapType pixmap,
1059 const EGLint *attrib_list)
1060 {
1061 return dri2_create_surface(drv, disp, EGL_PIXMAP_BIT, conf,
1062 pixmap, attrib_list);
1063 }
1064
1065 static _EGLSurface *
1066 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
1067 _EGLConfig *conf, const EGLint *attrib_list)
1068 {
1069 return dri2_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
1070 XCB_WINDOW_NONE, attrib_list);
1071 }
1072
1073 static EGLBoolean
1074 dri2_copy_region(_EGLDriver *drv, _EGLDisplay *disp,
1075 _EGLSurface *draw, xcb_xfixes_region_t region)
1076 {
1077 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1078 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1079 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
1080 _EGLContext *ctx;
1081 xcb_dri2_copy_region_cookie_t cookie;
1082
1083 if (dri2_drv->glFlush) {
1084 ctx = _eglGetCurrentContext();
1085 if (ctx && ctx->DrawSurface == &dri2_surf->base)
1086 dri2_drv->glFlush();
1087 }
1088
1089 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
1090
1091 #if 0
1092 /* FIXME: Add support for dri swapbuffers, that'll give us swap
1093 * interval and page flipping (at least for fullscreen windows) as
1094 * well as the page flip event. Unless surface->SwapBehavior is
1095 * EGL_BUFFER_PRESERVED. */
1096 #if __DRI2_FLUSH_VERSION >= 2
1097 if (pdraw->psc->f)
1098 (*pdraw->psc->f->flushInvalidate)(pdraw->driDrawable);
1099 #endif
1100 #endif
1101
1102 if (!dri2_surf->have_fake_front)
1103 return EGL_TRUE;
1104
1105 cookie = xcb_dri2_copy_region_unchecked(dri2_dpy->conn,
1106 dri2_surf->drawable,
1107 region,
1108 XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT,
1109 XCB_DRI2_ATTACHMENT_BUFFER_FAKE_FRONT_LEFT);
1110 free(xcb_dri2_copy_region_reply(dri2_dpy->conn, cookie, NULL));
1111
1112 return EGL_TRUE;
1113 }
1114
1115 static EGLBoolean
1116 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
1117 {
1118 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
1119
1120 return dri2_copy_region(drv, disp, draw, dri2_surf->region);
1121 }
1122
1123 static EGLBoolean
1124 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw,
1125 EGLint numRects, const EGLint *rects)
1126 {
1127 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1128 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
1129 EGLBoolean ret;
1130 xcb_xfixes_region_t region;
1131 xcb_rectangle_t rectangles[16];
1132 int i;
1133
1134 if (numRects > ARRAY_SIZE(rectangles))
1135 return dri2_copy_region(drv, disp, draw, dri2_surf->region);
1136
1137 /* FIXME: Invert y here? */
1138 for (i = 0; i < numRects; i++) {
1139 rectangles[i].x = rects[i * 4];
1140 rectangles[i].y = rects[i * 4 + 1];
1141 rectangles[i].width = rects[i * 4 + 2];
1142 rectangles[i].height = rects[i * 4 + 3];
1143 }
1144
1145 region = xcb_generate_id(dri2_dpy->conn);
1146 xcb_xfixes_create_region(dri2_dpy->conn, region, numRects, rectangles);
1147 ret = dri2_copy_region(drv, disp, draw, region);
1148 xcb_xfixes_destroy_region(dri2_dpy->conn, region);
1149
1150 return ret;
1151 }
1152
1153 /*
1154 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1155 */
1156 static _EGLProc
1157 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1158 {
1159 /* FIXME: Do we need to support lookup of EGL symbols too? */
1160
1161 return (_EGLProc) _glapi_get_proc_address(procname);
1162 }
1163
1164 static EGLBoolean
1165 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1166 {
1167 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1168 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
1169
1170 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1171 * we need to copy fake to real here.*/
1172
1173 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
1174
1175 return EGL_TRUE;
1176 }
1177
1178 static EGLBoolean
1179 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1180 {
1181 if (engine != EGL_CORE_NATIVE_ENGINE)
1182 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1183 /* glXWaitX(); */
1184
1185 return EGL_TRUE;
1186 }
1187
1188 static void
1189 dri2_unload(_EGLDriver *drv)
1190 {
1191 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1192 free(dri2_drv);
1193 }
1194
1195 static EGLBoolean
1196 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1197 EGLNativePixmapType target)
1198 {
1199 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1200 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1201 xcb_gcontext_t gc;
1202
1203 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
1204
1205 gc = xcb_generate_id(dri2_dpy->conn);
1206 xcb_create_gc(dri2_dpy->conn, gc, target, 0, NULL);
1207 xcb_copy_area(dri2_dpy->conn,
1208 dri2_surf->drawable,
1209 target,
1210 gc,
1211 0, 0,
1212 0, 0,
1213 dri2_surf->base.Width,
1214 dri2_surf->base.Height);
1215 xcb_free_gc(dri2_dpy->conn, gc);
1216
1217 return EGL_TRUE;
1218 }
1219
1220 static EGLBoolean
1221 dri2_bind_tex_image(_EGLDriver *drv,
1222 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1223 {
1224 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1225 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1226 struct dri2_egl_context *dri2_ctx;
1227 _EGLContext *ctx;
1228 GLint format, target;
1229
1230 ctx = _eglGetCurrentContext();
1231 dri2_ctx = dri2_egl_context(ctx);
1232
1233 if (!_eglBindTexImage(drv, disp, surf, buffer))
1234 return EGL_FALSE;
1235
1236 switch (dri2_surf->base.TextureFormat) {
1237 case EGL_TEXTURE_RGB:
1238 format = __DRI_TEXTURE_FORMAT_RGB;
1239 break;
1240 case EGL_TEXTURE_RGBA:
1241 format = __DRI_TEXTURE_FORMAT_RGBA;
1242 break;
1243 default:
1244 assert(0);
1245 }
1246
1247 switch (dri2_surf->base.TextureTarget) {
1248 case EGL_TEXTURE_2D:
1249 target = GL_TEXTURE_2D;
1250 break;
1251 default:
1252 assert(0);
1253 }
1254
1255 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1256 target, format,
1257 dri2_surf->dri_drawable);
1258
1259 return EGL_TRUE;
1260 }
1261
1262 static EGLBoolean
1263 dri2_release_tex_image(_EGLDriver *drv,
1264 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1265 {
1266 return EGL_TRUE;
1267 }
1268
1269 static _EGLImage *
1270 dri2_create_image_khr_pixmap(_EGLDisplay *disp, _EGLContext *ctx,
1271 EGLClientBuffer buffer, const EGLint *attr_list)
1272 {
1273 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1274 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1275 struct dri2_egl_image *dri2_img;
1276 unsigned int attachments[1];
1277 xcb_drawable_t drawable;
1278 xcb_dri2_get_buffers_cookie_t buffers_cookie;
1279 xcb_dri2_get_buffers_reply_t *buffers_reply;
1280 xcb_dri2_dri2_buffer_t *buffers;
1281 xcb_get_geometry_cookie_t geometry_cookie;
1282 xcb_get_geometry_reply_t *geometry_reply;
1283 xcb_generic_error_t *error;
1284 int stride, format;
1285
1286 drawable = (xcb_drawable_t) buffer;
1287 xcb_dri2_create_drawable (dri2_dpy->conn, drawable);
1288 attachments[0] = XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT;
1289 buffers_cookie =
1290 xcb_dri2_get_buffers_unchecked (dri2_dpy->conn,
1291 drawable, 1, 1, attachments);
1292 geometry_cookie = xcb_get_geometry (dri2_dpy->conn, drawable);
1293 buffers_reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn,
1294 buffers_cookie, NULL);
1295 buffers = xcb_dri2_get_buffers_buffers (buffers_reply);
1296 if (buffers == NULL) {
1297 return NULL;
1298 }
1299
1300 geometry_reply = xcb_get_geometry_reply (dri2_dpy->conn,
1301 geometry_cookie, &error);
1302 if (geometry_reply == NULL || error != NULL) {
1303 _eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
1304 free(error);
1305 free(buffers_reply);
1306 }
1307
1308 switch (geometry_reply->depth) {
1309 case 16:
1310 format = __DRI_IMAGE_FORMAT_RGB565;
1311 break;
1312 case 24:
1313 format = __DRI_IMAGE_FORMAT_XRGB8888;
1314 break;
1315 case 32:
1316 format = __DRI_IMAGE_FORMAT_ARGB8888;
1317 break;
1318 default:
1319 _eglError(EGL_BAD_PARAMETER,
1320 "dri2_create_image_khr: unsupported pixmap depth");
1321 free(buffers_reply);
1322 free(geometry_reply);
1323 return NULL;
1324 }
1325
1326 dri2_img = malloc(sizeof *dri2_img);
1327 if (!dri2_img) {
1328 free(buffers_reply);
1329 free(geometry_reply);
1330 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1331 return EGL_NO_IMAGE_KHR;
1332 }
1333
1334 if (!_eglInitImage(&dri2_img->base, disp, attr_list)) {
1335 free(buffers_reply);
1336 free(geometry_reply);
1337 return EGL_NO_IMAGE_KHR;
1338 }
1339
1340 stride = buffers[0].pitch / buffers[0].cpp;
1341 dri2_img->dri_image =
1342 dri2_dpy->image->createImageFromName(dri2_ctx->dri_context,
1343 buffers_reply->width,
1344 buffers_reply->height,
1345 format,
1346 buffers[0].name,
1347 stride,
1348 dri2_img);
1349
1350 free(buffers_reply);
1351 free(geometry_reply);
1352
1353 return &dri2_img->base;
1354 }
1355
1356 static _EGLImage *
1357 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1358 EGLClientBuffer buffer,
1359 const EGLint *attr_list)
1360 {
1361 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1362 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1363 struct dri2_egl_image *dri2_img;
1364 GLuint renderbuffer = (GLuint) buffer;
1365
1366 if (renderbuffer == 0) {
1367 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1368 return EGL_NO_IMAGE_KHR;
1369 }
1370
1371 dri2_img = malloc(sizeof *dri2_img);
1372 if (!dri2_img) {
1373 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1374 return EGL_NO_IMAGE_KHR;
1375 }
1376
1377 if (!_eglInitImage(&dri2_img->base, disp, attr_list))
1378 return EGL_NO_IMAGE_KHR;
1379
1380 dri2_img->dri_image =
1381 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1382 renderbuffer,
1383 dri2_img);
1384
1385 return &dri2_img->base;
1386 }
1387
1388 static _EGLImage *
1389 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1390 _EGLContext *ctx, EGLenum target,
1391 EGLClientBuffer buffer, const EGLint *attr_list)
1392 {
1393 switch (target) {
1394 case EGL_NATIVE_PIXMAP_KHR:
1395 return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list);
1396 case EGL_GL_RENDERBUFFER_KHR:
1397 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1398 default:
1399 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1400 return EGL_NO_IMAGE_KHR;
1401 }
1402 }
1403
1404 static EGLBoolean
1405 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1406 {
1407 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1408 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1409
1410 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1411 free(dri2_img);
1412
1413 return EGL_TRUE;
1414 }
1415
1416 /**
1417 * This is the main entrypoint into the driver, called by libEGL.
1418 * Create a new _EGLDriver object and init its dispatch table.
1419 */
1420 _EGLDriver *
1421 _eglMain(const char *args)
1422 {
1423 struct dri2_egl_driver *dri2_drv;
1424
1425 dri2_drv = malloc(sizeof *dri2_drv);
1426 if (!dri2_drv)
1427 return NULL;
1428
1429 memset(dri2_drv, 0, sizeof *dri2_drv);
1430 _eglInitDriverFallbacks(&dri2_drv->base);
1431 dri2_drv->base.API.Initialize = dri2_initialize;
1432 dri2_drv->base.API.Terminate = dri2_terminate;
1433 dri2_drv->base.API.CreateContext = dri2_create_context;
1434 dri2_drv->base.API.MakeCurrent = dri2_make_current;
1435 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
1436 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
1437 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
1438 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
1439 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
1440 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
1441 dri2_drv->base.API.WaitClient = dri2_wait_client;
1442 dri2_drv->base.API.WaitNative = dri2_wait_native;
1443 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers;
1444 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
1445 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
1446 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
1447 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
1448 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
1449
1450 dri2_drv->base.Name = "DRI2";
1451 dri2_drv->base.Unload = dri2_unload;
1452
1453 dri2_drv->glFlush =
1454 (void (*)(void)) dri2_get_proc_address(&dri2_drv->base, "glFlush");
1455
1456 return &dri2_drv->base;
1457 }