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Merge branch 'gallium-newclear'
[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 static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
421
422 struct dri2_extension_match {
423 const char *name;
424 int version;
425 int offset;
426 };
427
428 static struct dri2_extension_match dri2_driver_extensions[] = {
429 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
430 { __DRI_DRI2, 1, offsetof(struct dri2_egl_display, dri2) },
431 { NULL }
432 };
433
434 static struct dri2_extension_match dri2_core_extensions[] = {
435 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
436 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
437 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
438 { NULL }
439 };
440
441 static EGLBoolean
442 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
443 struct dri2_extension_match *matches,
444 const __DRIextension **extensions)
445 {
446 int i, j, ret = EGL_TRUE;
447 void *field;
448
449 for (i = 0; extensions[i]; i++) {
450 _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
451 for (j = 0; matches[j].name; j++) {
452 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
453 extensions[i]->version >= matches[j].version) {
454 field = ((char *) dri2_dpy + matches[j].offset);
455 *(const __DRIextension **) field = extensions[i];
456 _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
457 extensions[i]->name, extensions[i]->version);
458 }
459 }
460 }
461
462 for (j = 0; matches[j].name; j++) {
463 field = ((char *) dri2_dpy + matches[j].offset);
464 if (*(const __DRIextension **) field == NULL) {
465 _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
466 matches[j].name, matches[j].version);
467 ret = EGL_FALSE;
468 }
469 }
470
471 return ret;
472 }
473
474 static char *
475 dri2_strndup(const char *s, int length)
476 {
477 char *d;
478
479 d = malloc(length + 1);
480 if (d == NULL)
481 return NULL;
482
483 memcpy(d, s, length);
484 d[length] = '\0';
485
486 return d;
487 }
488
489 static EGLBoolean
490 dri2_connect(struct dri2_egl_display *dri2_dpy)
491 {
492 xcb_xfixes_query_version_reply_t *xfixes_query;
493 xcb_xfixes_query_version_cookie_t xfixes_query_cookie;
494 xcb_dri2_query_version_reply_t *dri2_query;
495 xcb_dri2_query_version_cookie_t dri2_query_cookie;
496 xcb_dri2_connect_reply_t *connect;
497 xcb_dri2_connect_cookie_t connect_cookie;
498 xcb_generic_error_t *error;
499 xcb_screen_iterator_t s;
500
501 xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id);
502 xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id);
503
504 xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn,
505 XCB_XFIXES_MAJOR_VERSION,
506 XCB_XFIXES_MINOR_VERSION);
507
508 dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn,
509 XCB_DRI2_MAJOR_VERSION,
510 XCB_DRI2_MINOR_VERSION);
511
512 s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
513 connect_cookie = xcb_dri2_connect_unchecked (dri2_dpy->conn,
514 s.data->root,
515 XCB_DRI2_DRIVER_TYPE_DRI);
516
517 xfixes_query =
518 xcb_xfixes_query_version_reply (dri2_dpy->conn,
519 xfixes_query_cookie, &error);
520 if (xfixes_query == NULL ||
521 error != NULL || xfixes_query->major_version < 2) {
522 _eglLog(_EGL_FATAL, "DRI2: failed to query xfixes version");
523 free(error);
524 return EGL_FALSE;
525 }
526 free(xfixes_query);
527
528 dri2_query =
529 xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error);
530 if (dri2_query == NULL || error != NULL) {
531 _eglLog(_EGL_FATAL, "DRI2: failed to query version");
532 free(error);
533 return EGL_FALSE;
534 }
535 dri2_dpy->dri2_major = dri2_query->major_version;
536 dri2_dpy->dri2_minor = dri2_query->minor_version;
537 free(dri2_query);
538
539 connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL);
540 if (connect == NULL ||
541 connect->driver_name_length + connect->device_name_length == 0) {
542 _eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
543 return EGL_FALSE;
544 }
545
546 dri2_dpy->device_name =
547 dri2_strndup(xcb_dri2_connect_device_name (connect),
548 xcb_dri2_connect_device_name_length (connect));
549
550 dri2_dpy->driver_name =
551 dri2_strndup(xcb_dri2_connect_driver_name (connect),
552 xcb_dri2_connect_driver_name_length (connect));
553
554 if (dri2_dpy->device_name == NULL || dri2_dpy->driver_name == NULL) {
555 free(dri2_dpy->device_name);
556 free(dri2_dpy->driver_name);
557 free(connect);
558 return EGL_FALSE;
559 }
560 free(connect);
561
562 return EGL_TRUE;
563 }
564
565 static EGLBoolean
566 dri2_authenticate(struct dri2_egl_display *dri2_dpy)
567 {
568 xcb_dri2_authenticate_reply_t *authenticate;
569 xcb_dri2_authenticate_cookie_t authenticate_cookie;
570 xcb_screen_iterator_t s;
571 drm_magic_t magic;
572
573 if (drmGetMagic(dri2_dpy->fd, &magic)) {
574 _eglLog(_EGL_FATAL, "DRI2: failed to get drm magic");
575 return EGL_FALSE;
576 }
577
578 s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
579 authenticate_cookie =
580 xcb_dri2_authenticate_unchecked(dri2_dpy->conn, s.data->root, magic);
581 authenticate =
582 xcb_dri2_authenticate_reply(dri2_dpy->conn, authenticate_cookie, NULL);
583 if (authenticate == NULL || !authenticate->authenticated) {
584 _eglLog(_EGL_FATAL, "DRI2: failed to authenticate");
585 free(authenticate);
586 return EGL_FALSE;
587 }
588
589 free(authenticate);
590
591 return EGL_TRUE;
592 }
593
594 static EGLBoolean
595 dri2_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy,
596 _EGLDisplay *disp)
597 {
598 xcb_screen_iterator_t s;
599 xcb_depth_iterator_t d;
600 xcb_visualtype_t *visuals;
601 int i, j, id;
602
603 s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
604 d = xcb_screen_allowed_depths_iterator(s.data);
605 id = 1;
606 while (d.rem > 0) {
607 EGLBoolean class_added[6] = { 0, };
608
609 visuals = xcb_depth_visuals(d.data);
610 for (i = 0; i < xcb_depth_visuals_length(d.data); i++) {
611 if (class_added[visuals[i]._class])
612 continue;
613
614 class_added[visuals[i]._class] = EGL_TRUE;
615 for (j = 0; dri2_dpy->driver_configs[j]; j++)
616 dri2_add_config(disp, dri2_dpy->driver_configs[j],
617 id++, d.data->depth, &visuals[i]);
618 }
619
620 xcb_depth_next(&d);
621 }
622
623 if (!disp->NumConfigs) {
624 _eglLog(_EGL_WARNING, "DRI2: failed to create any config");
625 return EGL_FALSE;
626 }
627
628 return EGL_TRUE;
629 }
630
631 static EGLBoolean
632 dri2_load_driver(_EGLDisplay *disp)
633 {
634 struct dri2_egl_display *dri2_dpy = disp->DriverData;
635 const __DRIextension **extensions;
636 char path[PATH_MAX], *search_paths, *p, *next, *end;
637
638 search_paths = NULL;
639 if (geteuid() == getuid()) {
640 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
641 search_paths = getenv("LIBGL_DRIVERS_PATH");
642 }
643 if (search_paths == NULL)
644 search_paths = DEFAULT_DRIVER_DIR;
645
646 dri2_dpy->driver = NULL;
647 end = search_paths + strlen(search_paths);
648 for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
649 int len;
650 next = strchr(p, ':');
651 if (next == NULL)
652 next = end;
653
654 len = next - p;
655 #if GLX_USE_TLS
656 snprintf(path, sizeof path,
657 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
658 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
659 #endif
660 if (dri2_dpy->driver == NULL) {
661 snprintf(path, sizeof path,
662 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
663 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
664 if (dri2_dpy->driver == NULL)
665 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
666 }
667 }
668
669 if (dri2_dpy->driver == NULL) {
670 _eglLog(_EGL_WARNING,
671 "DRI2: failed to open any driver (search paths %s)",
672 search_paths);
673 return EGL_FALSE;
674 }
675
676 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
677 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
678 if (extensions == NULL) {
679 _eglLog(_EGL_WARNING,
680 "DRI2: driver exports no extensions (%s)", dlerror());
681 dlclose(dri2_dpy->driver);
682 return EGL_FALSE;
683 }
684
685 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
686 dlclose(dri2_dpy->driver);
687 return EGL_FALSE;
688 }
689
690 return EGL_TRUE;
691 }
692
693
694 /**
695 * Called via eglInitialize(), GLX_drv->API.Initialize().
696 */
697 static EGLBoolean
698 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp,
699 EGLint *major, EGLint *minor)
700 {
701 const __DRIextension **extensions;
702 struct dri2_egl_display *dri2_dpy;
703 unsigned int api_mask;
704
705 dri2_dpy = malloc(sizeof *dri2_dpy);
706 if (!dri2_dpy)
707 return _eglError(EGL_BAD_ALLOC, "eglInitialize");
708
709 disp->DriverData = (void *) dri2_dpy;
710 if (disp->NativeDisplay == NULL) {
711 dri2_dpy->conn = xcb_connect(0, 0);
712 } else {
713 dri2_dpy->conn = XGetXCBConnection(disp->NativeDisplay);
714 }
715
716 if (xcb_connection_has_error(dri2_dpy->conn)) {
717 _eglLog(_EGL_WARNING, "DRI2: xcb_connect failed");
718 goto cleanup_dpy;
719 }
720
721 if (dri2_dpy->conn) {
722 if (!dri2_connect(dri2_dpy))
723 goto cleanup_conn;
724 }
725
726 if (!dri2_load_driver(disp))
727 goto cleanup_conn;
728
729 dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR);
730 if (dri2_dpy->fd == -1) {
731 _eglLog(_EGL_WARNING,
732 "DRI2: could not open %s (%s)", dri2_dpy->device_name,
733 strerror(errno));
734 goto cleanup_driver;
735 }
736
737 if (dri2_dpy->conn) {
738 if (!dri2_authenticate(dri2_dpy))
739 goto cleanup_fd;
740 }
741
742 if (dri2_dpy->dri2_minor >= 1) {
743 dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
744 dri2_dpy->loader_extension.base.version = 3;
745 dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
746 dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
747 dri2_dpy->loader_extension.getBuffersWithFormat =
748 dri2_get_buffers_with_format;
749 } else {
750 dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER;
751 dri2_dpy->loader_extension.base.version = 2;
752 dri2_dpy->loader_extension.getBuffers = dri2_get_buffers;
753 dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer;
754 dri2_dpy->loader_extension.getBuffersWithFormat = NULL;
755 }
756
757 dri2_dpy->image_lookup_extension.base.name = __DRI_IMAGE_LOOKUP;
758 dri2_dpy->image_lookup_extension.base.version = 1;
759 dri2_dpy->image_lookup_extension.lookupEGLImage = dri2_lookup_egl_image;
760
761 dri2_dpy->extensions[0] = &dri2_dpy->loader_extension.base;
762 dri2_dpy->extensions[1] = &dri2_dpy->image_lookup_extension.base;
763 dri2_dpy->extensions[2] = NULL;
764
765 dri2_dpy->dri_screen =
766 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
767 &dri2_dpy->driver_configs, dri2_dpy);
768
769 if (dri2_dpy->dri_screen == NULL) {
770 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
771 goto cleanup_fd;
772 }
773
774 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
775 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
776 goto cleanup_dri_screen;
777
778 if (dri2_dpy->dri2->base.version >= 2)
779 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
780 else
781 api_mask = __DRI_API_OPENGL;
782
783 disp->ClientAPIsMask = 0;
784 if (api_mask & (1 <<__DRI_API_OPENGL))
785 disp->ClientAPIsMask |= EGL_OPENGL_BIT;
786 if (api_mask & (1 <<__DRI_API_GLES))
787 disp->ClientAPIsMask |= EGL_OPENGL_ES_BIT;
788 if (api_mask & (1 << __DRI_API_GLES2))
789 disp->ClientAPIsMask |= EGL_OPENGL_ES2_BIT;
790
791 if (dri2_dpy->conn) {
792 if (!dri2_add_configs_for_visuals(dri2_dpy, disp))
793 goto cleanup_configs;
794 }
795
796 disp->Extensions.KHR_image_base = EGL_TRUE;
797 disp->Extensions.KHR_image_pixmap = EGL_TRUE;
798 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
799 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
800 disp->Extensions.NOK_swap_region = EGL_TRUE;
801 disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE;
802
803 /* we're supporting EGL 1.4 */
804 *major = 1;
805 *minor = 4;
806
807 return EGL_TRUE;
808
809 cleanup_configs:
810 _eglCleanupDisplay(disp);
811 cleanup_dri_screen:
812 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
813 cleanup_fd:
814 close(dri2_dpy->fd);
815 cleanup_driver:
816 dlclose(dri2_dpy->driver);
817 cleanup_conn:
818 if (disp->NativeDisplay == NULL)
819 xcb_disconnect(dri2_dpy->conn);
820 cleanup_dpy:
821 free(dri2_dpy);
822
823 return EGL_FALSE;
824 }
825
826 /**
827 * Called via eglTerminate(), drv->API.Terminate().
828 */
829 static EGLBoolean
830 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
831 {
832 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
833
834 _eglReleaseDisplayResources(drv, disp);
835 _eglCleanupDisplay(disp);
836
837 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
838 close(dri2_dpy->fd);
839 dlclose(dri2_dpy->driver);
840 if (disp->NativeDisplay == NULL)
841 xcb_disconnect(dri2_dpy->conn);
842 free(dri2_dpy);
843 disp->DriverData = NULL;
844
845 return EGL_TRUE;
846 }
847
848
849 /**
850 * Called via eglCreateContext(), drv->API.CreateContext().
851 */
852 static _EGLContext *
853 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
854 _EGLContext *share_list, const EGLint *attrib_list)
855 {
856 struct dri2_egl_context *dri2_ctx;
857 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
858 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
859 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
860 int api;
861
862 dri2_ctx = malloc(sizeof *dri2_ctx);
863 if (!dri2_ctx) {
864 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
865 return NULL;
866 }
867
868 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
869 goto cleanup;
870
871 switch (dri2_ctx->base.ClientAPI) {
872 case EGL_OPENGL_ES_API:
873 switch (dri2_ctx->base.ClientVersion) {
874 case 1:
875 api = __DRI_API_GLES;
876 break;
877 case 2:
878 api = __DRI_API_GLES2;
879 break;
880 default:
881 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
882 return NULL;
883 }
884 break;
885 case EGL_OPENGL_API:
886 api = __DRI_API_OPENGL;
887 break;
888 default:
889 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
890 return NULL;
891 }
892
893 if (dri2_dpy->dri2->base.version >= 2) {
894 dri2_ctx->dri_context =
895 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
896 api,
897 dri2_config->dri_config,
898 dri2_ctx_shared ?
899 dri2_ctx_shared->dri_context : NULL,
900 dri2_ctx);
901 } else if (api == __DRI_API_OPENGL) {
902 dri2_ctx->dri_context =
903 dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
904 dri2_config->dri_config,
905 dri2_ctx_shared ?
906 dri2_ctx_shared->dri_context : NULL,
907 dri2_ctx);
908 } else {
909 /* fail */
910 }
911
912 if (!dri2_ctx->dri_context)
913 goto cleanup;
914
915 return &dri2_ctx->base;
916
917 cleanup:
918 free(dri2_ctx);
919 return NULL;
920 }
921
922 static EGLBoolean
923 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
924 {
925 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
926 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
927
928 if (_eglIsSurfaceBound(surf))
929 return EGL_TRUE;
930
931 (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
932
933 xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->drawable);
934
935 if (surf->Type == EGL_PBUFFER_BIT)
936 xcb_free_pixmap (dri2_dpy->conn, dri2_surf->drawable);
937
938 free(surf);
939
940 return EGL_TRUE;
941 }
942
943 /**
944 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
945 */
946 static EGLBoolean
947 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
948 _EGLSurface *rsurf, _EGLContext *ctx)
949 {
950 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
951 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
952 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
953 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
954 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
955 __DRIdrawable *ddraw, *rdraw;
956 __DRIcontext *cctx;
957
958 /* bind the new context and return the "orphaned" one */
959 if (!_eglBindContext(&ctx, &dsurf, &rsurf))
960 return EGL_FALSE;
961
962 /* flush before context switch */
963 if (ctx && dri2_drv->glFlush)
964 dri2_drv->glFlush();
965
966 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
967 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
968 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
969
970 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
971 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
972 if (dsurf && !_eglIsSurfaceLinked(dsurf))
973 dri2_destroy_surface(drv, disp, dsurf);
974 if (rsurf && rsurf != dsurf && !_eglIsSurfaceLinked(dsurf))
975 dri2_destroy_surface(drv, disp, rsurf);
976 if (ctx != NULL && !_eglIsContextLinked(ctx))
977 dri2_dpy->core->unbindContext(dri2_egl_context(ctx)->dri_context);
978
979 return EGL_TRUE;
980 } else {
981 _eglBindContext(&ctx, &dsurf, &rsurf);
982
983 return EGL_FALSE;
984 }
985 }
986
987 /**
988 * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
989 */
990 static _EGLSurface *
991 dri2_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
992 _EGLConfig *conf, EGLNativeWindowType window,
993 const EGLint *attrib_list)
994 {
995 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
996 struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
997 struct dri2_egl_surface *dri2_surf;
998 xcb_get_geometry_cookie_t cookie;
999 xcb_get_geometry_reply_t *reply;
1000 xcb_screen_iterator_t s;
1001 xcb_generic_error_t *error;
1002
1003 dri2_surf = malloc(sizeof *dri2_surf);
1004 if (!dri2_surf) {
1005 _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
1006 return NULL;
1007 }
1008
1009 if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
1010 goto cleanup_surf;
1011
1012 dri2_surf->region = XCB_NONE;
1013 if (type == EGL_PBUFFER_BIT) {
1014 dri2_surf->drawable = xcb_generate_id(dri2_dpy->conn);
1015 s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn));
1016 xcb_create_pixmap(dri2_dpy->conn,
1017 _eglGetConfigKey(conf, EGL_BUFFER_SIZE),
1018 dri2_surf->drawable, s.data->root,
1019 dri2_surf->base.Width, dri2_surf->base.Height);
1020 } else {
1021 dri2_surf->drawable = window;
1022 }
1023
1024 dri2_surf->dri_drawable =
1025 (*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen,
1026 dri2_conf->dri_config, dri2_surf);
1027 if (dri2_surf->dri_drawable == NULL) {
1028 _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
1029 goto cleanup_pixmap;
1030 }
1031
1032 xcb_dri2_create_drawable (dri2_dpy->conn, dri2_surf->drawable);
1033
1034 if (type != EGL_PBUFFER_BIT) {
1035 cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable);
1036 reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error);
1037 if (reply == NULL || error != NULL) {
1038 _eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
1039 free(error);
1040 goto cleanup_dri_drawable;
1041 }
1042
1043 dri2_surf->base.Width = reply->width;
1044 dri2_surf->base.Height = reply->height;
1045 free(reply);
1046 }
1047
1048 return &dri2_surf->base;
1049
1050 cleanup_dri_drawable:
1051 dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
1052 cleanup_pixmap:
1053 if (type == EGL_PBUFFER_BIT)
1054 xcb_free_pixmap(dri2_dpy->conn, dri2_surf->drawable);
1055 cleanup_surf:
1056 free(dri2_surf);
1057
1058 return NULL;
1059 }
1060
1061 /**
1062 * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
1063 */
1064 static _EGLSurface *
1065 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
1066 _EGLConfig *conf, EGLNativeWindowType window,
1067 const EGLint *attrib_list)
1068 {
1069 return dri2_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
1070 window, attrib_list);
1071 }
1072
1073 static _EGLSurface *
1074 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
1075 _EGLConfig *conf, EGLNativePixmapType pixmap,
1076 const EGLint *attrib_list)
1077 {
1078 return dri2_create_surface(drv, disp, EGL_PIXMAP_BIT, conf,
1079 pixmap, attrib_list);
1080 }
1081
1082 static _EGLSurface *
1083 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
1084 _EGLConfig *conf, const EGLint *attrib_list)
1085 {
1086 return dri2_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
1087 XCB_WINDOW_NONE, attrib_list);
1088 }
1089
1090 static EGLBoolean
1091 dri2_copy_region(_EGLDriver *drv, _EGLDisplay *disp,
1092 _EGLSurface *draw, xcb_xfixes_region_t region)
1093 {
1094 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1095 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1096 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
1097 _EGLContext *ctx;
1098 xcb_dri2_copy_region_cookie_t cookie;
1099
1100 if (dri2_drv->glFlush) {
1101 ctx = _eglGetCurrentContext();
1102 if (ctx && ctx->DrawSurface == &dri2_surf->base)
1103 dri2_drv->glFlush();
1104 }
1105
1106 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
1107
1108 #if 0
1109 /* FIXME: Add support for dri swapbuffers, that'll give us swap
1110 * interval and page flipping (at least for fullscreen windows) as
1111 * well as the page flip event. Unless surface->SwapBehavior is
1112 * EGL_BUFFER_PRESERVED. */
1113 #if __DRI2_FLUSH_VERSION >= 2
1114 if (pdraw->psc->f)
1115 (*pdraw->psc->f->flushInvalidate)(pdraw->driDrawable);
1116 #endif
1117 #endif
1118
1119 if (!dri2_surf->have_fake_front)
1120 return EGL_TRUE;
1121
1122 cookie = xcb_dri2_copy_region_unchecked(dri2_dpy->conn,
1123 dri2_surf->drawable,
1124 region,
1125 XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT,
1126 XCB_DRI2_ATTACHMENT_BUFFER_FAKE_FRONT_LEFT);
1127 free(xcb_dri2_copy_region_reply(dri2_dpy->conn, cookie, NULL));
1128
1129 return EGL_TRUE;
1130 }
1131
1132 static EGLBoolean
1133 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
1134 {
1135 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
1136
1137 return dri2_copy_region(drv, disp, draw, dri2_surf->region);
1138 }
1139
1140 static EGLBoolean
1141 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw,
1142 EGLint numRects, const EGLint *rects)
1143 {
1144 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1145 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
1146 EGLBoolean ret;
1147 xcb_xfixes_region_t region;
1148 xcb_rectangle_t rectangles[16];
1149 int i;
1150
1151 if (numRects > ARRAY_SIZE(rectangles))
1152 return dri2_copy_region(drv, disp, draw, dri2_surf->region);
1153
1154 /* FIXME: Invert y here? */
1155 for (i = 0; i < numRects; i++) {
1156 rectangles[i].x = rects[i * 4];
1157 rectangles[i].y = rects[i * 4 + 1];
1158 rectangles[i].width = rects[i * 4 + 2];
1159 rectangles[i].height = rects[i * 4 + 3];
1160 }
1161
1162 region = xcb_generate_id(dri2_dpy->conn);
1163 xcb_xfixes_create_region(dri2_dpy->conn, region, numRects, rectangles);
1164 ret = dri2_copy_region(drv, disp, draw, region);
1165 xcb_xfixes_destroy_region(dri2_dpy->conn, region);
1166
1167 return ret;
1168 }
1169
1170 /*
1171 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1172 */
1173 static _EGLProc
1174 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1175 {
1176 /* FIXME: Do we need to support lookup of EGL symbols too? */
1177
1178 return (_EGLProc) _glapi_get_proc_address(procname);
1179 }
1180
1181 static EGLBoolean
1182 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1183 {
1184 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1185 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
1186
1187 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1188 * we need to copy fake to real here.*/
1189
1190 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
1191
1192 return EGL_TRUE;
1193 }
1194
1195 static EGLBoolean
1196 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1197 {
1198 if (engine != EGL_CORE_NATIVE_ENGINE)
1199 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1200 /* glXWaitX(); */
1201
1202 return EGL_TRUE;
1203 }
1204
1205 static void
1206 dri2_unload(_EGLDriver *drv)
1207 {
1208 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1209 free(dri2_drv);
1210 }
1211
1212 static EGLBoolean
1213 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1214 EGLNativePixmapType target)
1215 {
1216 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1217 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1218 xcb_gcontext_t gc;
1219
1220 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
1221
1222 gc = xcb_generate_id(dri2_dpy->conn);
1223 xcb_create_gc(dri2_dpy->conn, gc, target, 0, NULL);
1224 xcb_copy_area(dri2_dpy->conn,
1225 dri2_surf->drawable,
1226 target,
1227 gc,
1228 0, 0,
1229 0, 0,
1230 dri2_surf->base.Width,
1231 dri2_surf->base.Height);
1232 xcb_free_gc(dri2_dpy->conn, gc);
1233
1234 return EGL_TRUE;
1235 }
1236
1237 static EGLBoolean
1238 dri2_bind_tex_image(_EGLDriver *drv,
1239 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1240 {
1241 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1242 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1243 struct dri2_egl_context *dri2_ctx;
1244 _EGLContext *ctx;
1245 GLint format, target;
1246
1247 ctx = _eglGetCurrentContext();
1248 dri2_ctx = dri2_egl_context(ctx);
1249
1250 if (!_eglBindTexImage(drv, disp, surf, buffer))
1251 return EGL_FALSE;
1252
1253 switch (dri2_surf->base.TextureFormat) {
1254 case EGL_TEXTURE_RGB:
1255 format = __DRI_TEXTURE_FORMAT_RGB;
1256 break;
1257 case EGL_TEXTURE_RGBA:
1258 format = __DRI_TEXTURE_FORMAT_RGBA;
1259 break;
1260 default:
1261 assert(0);
1262 }
1263
1264 switch (dri2_surf->base.TextureTarget) {
1265 case EGL_TEXTURE_2D:
1266 target = GL_TEXTURE_2D;
1267 break;
1268 default:
1269 assert(0);
1270 }
1271
1272 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1273 target, format,
1274 dri2_surf->dri_drawable);
1275
1276 return EGL_TRUE;
1277 }
1278
1279 static EGLBoolean
1280 dri2_release_tex_image(_EGLDriver *drv,
1281 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1282 {
1283 return EGL_TRUE;
1284 }
1285
1286 static _EGLImage *
1287 dri2_create_image_khr_pixmap(_EGLDisplay *disp, _EGLContext *ctx,
1288 EGLClientBuffer buffer, const EGLint *attr_list)
1289 {
1290 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1291 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1292 struct dri2_egl_image *dri2_img;
1293 unsigned int attachments[1];
1294 xcb_drawable_t drawable;
1295 xcb_dri2_get_buffers_cookie_t buffers_cookie;
1296 xcb_dri2_get_buffers_reply_t *buffers_reply;
1297 xcb_dri2_dri2_buffer_t *buffers;
1298 xcb_get_geometry_cookie_t geometry_cookie;
1299 xcb_get_geometry_reply_t *geometry_reply;
1300 xcb_generic_error_t *error;
1301 int stride, format;
1302
1303 drawable = (xcb_drawable_t) buffer;
1304 xcb_dri2_create_drawable (dri2_dpy->conn, drawable);
1305 attachments[0] = XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT;
1306 buffers_cookie =
1307 xcb_dri2_get_buffers_unchecked (dri2_dpy->conn,
1308 drawable, 1, 1, attachments);
1309 geometry_cookie = xcb_get_geometry (dri2_dpy->conn, drawable);
1310 buffers_reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn,
1311 buffers_cookie, NULL);
1312 buffers = xcb_dri2_get_buffers_buffers (buffers_reply);
1313 if (buffers == NULL) {
1314 return NULL;
1315 }
1316
1317 geometry_reply = xcb_get_geometry_reply (dri2_dpy->conn,
1318 geometry_cookie, &error);
1319 if (geometry_reply == NULL || error != NULL) {
1320 _eglError(EGL_BAD_ALLOC, "xcb_get_geometry");
1321 free(error);
1322 free(buffers_reply);
1323 }
1324
1325 switch (geometry_reply->depth) {
1326 case 16:
1327 format = __DRI_IMAGE_FORMAT_RGB565;
1328 break;
1329 case 24:
1330 format = __DRI_IMAGE_FORMAT_XRGB8888;
1331 break;
1332 case 32:
1333 format = __DRI_IMAGE_FORMAT_ARGB8888;
1334 break;
1335 default:
1336 _eglError(EGL_BAD_PARAMETER,
1337 "dri2_create_image_khr: unsupported pixmap depth");
1338 free(buffers_reply);
1339 free(geometry_reply);
1340 return NULL;
1341 }
1342
1343 dri2_img = malloc(sizeof *dri2_img);
1344 if (!dri2_img) {
1345 free(buffers_reply);
1346 free(geometry_reply);
1347 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1348 return EGL_NO_IMAGE_KHR;
1349 }
1350
1351 if (!_eglInitImage(&dri2_img->base, disp, attr_list)) {
1352 free(buffers_reply);
1353 free(geometry_reply);
1354 return EGL_NO_IMAGE_KHR;
1355 }
1356
1357 stride = buffers[0].pitch / buffers[0].cpp;
1358 dri2_img->dri_image =
1359 dri2_dpy->image->createImageFromName(dri2_ctx->dri_context,
1360 buffers_reply->width,
1361 buffers_reply->height,
1362 format,
1363 buffers[0].name,
1364 stride,
1365 dri2_img);
1366
1367 free(buffers_reply);
1368 free(geometry_reply);
1369
1370 return &dri2_img->base;
1371 }
1372
1373 static _EGLImage *
1374 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1375 EGLClientBuffer buffer,
1376 const EGLint *attr_list)
1377 {
1378 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1379 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1380 struct dri2_egl_image *dri2_img;
1381 GLuint renderbuffer = (GLuint) buffer;
1382
1383 if (renderbuffer == 0) {
1384 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1385 return EGL_NO_IMAGE_KHR;
1386 }
1387
1388 dri2_img = malloc(sizeof *dri2_img);
1389 if (!dri2_img) {
1390 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1391 return EGL_NO_IMAGE_KHR;
1392 }
1393
1394 if (!_eglInitImage(&dri2_img->base, disp, attr_list))
1395 return EGL_NO_IMAGE_KHR;
1396
1397 dri2_img->dri_image =
1398 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1399 renderbuffer,
1400 dri2_img);
1401
1402 return &dri2_img->base;
1403 }
1404
1405 static _EGLImage *
1406 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1407 _EGLContext *ctx, EGLenum target,
1408 EGLClientBuffer buffer, const EGLint *attr_list)
1409 {
1410 switch (target) {
1411 case EGL_NATIVE_PIXMAP_KHR:
1412 return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list);
1413 case EGL_GL_RENDERBUFFER_KHR:
1414 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1415 default:
1416 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1417 return EGL_NO_IMAGE_KHR;
1418 }
1419 }
1420
1421 static EGLBoolean
1422 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1423 {
1424 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1425 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1426
1427 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1428 free(dri2_img);
1429
1430 return EGL_TRUE;
1431 }
1432
1433 /**
1434 * This is the main entrypoint into the driver, called by libEGL.
1435 * Create a new _EGLDriver object and init its dispatch table.
1436 */
1437 _EGLDriver *
1438 _eglMain(const char *args)
1439 {
1440 struct dri2_egl_driver *dri2_drv;
1441
1442 dri2_drv = malloc(sizeof *dri2_drv);
1443 if (!dri2_drv)
1444 return NULL;
1445
1446 memset(dri2_drv, 0, sizeof *dri2_drv);
1447 _eglInitDriverFallbacks(&dri2_drv->base);
1448 dri2_drv->base.API.Initialize = dri2_initialize;
1449 dri2_drv->base.API.Terminate = dri2_terminate;
1450 dri2_drv->base.API.CreateContext = dri2_create_context;
1451 dri2_drv->base.API.MakeCurrent = dri2_make_current;
1452 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
1453 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
1454 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
1455 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
1456 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
1457 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
1458 dri2_drv->base.API.WaitClient = dri2_wait_client;
1459 dri2_drv->base.API.WaitNative = dri2_wait_native;
1460 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers;
1461 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
1462 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
1463 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
1464 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
1465 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
1466
1467 dri2_drv->base.Name = "DRI2";
1468 dri2_drv->base.Unload = dri2_unload;
1469
1470 dri2_drv->glFlush =
1471 (void (*)(void)) dri2_get_proc_address(&dri2_drv->base, "glFlush");
1472
1473 return &dri2_drv->base;
1474 }