1 /*
2 * Mesa 3-D graphics library
3 * Version: 7.9
4 *
5 * Copyright 2009, VMware, Inc.
6 * All Rights Reserved.
7 * Copyright (C) 2010 LunarG Inc.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 * Authors:
27 * Keith Whitwell <keithw@vmware.com>
28 * Jakob Bornecrantz <wallbraker@gmail.com>
29 * Chia-I Wu <olv@lunarg.com>
30 */
31
32 #include "util/u_memory.h"
33 #include "util/u_inlines.h"
34 #include "util/u_format.h"
35 #include "util/u_debug.h"
36 #include "state_tracker/drm_driver.h"
37
38 #include "dri_screen.h"
39 #include "dri_context.h"
40 #include "dri_drawable.h"
41 #include "dri2_buffer.h"
42
43 /**
44 * DRI2 flush extension.
45 */
46 static void
dri2_flush_drawable(__DRIdrawable * dPriv)47 dri2_flush_drawable(__DRIdrawable *dPriv)
48 {
49 struct dri_context *ctx = dri_get_current(dPriv->driScreenPriv);
50 struct dri_drawable *drawable = dri_drawable(dPriv);
51
52 struct pipe_resource *ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
53
54 if (ctx) {
55 if (ptex && ctx->pp && drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL])
56 pp_run(ctx->pp, ptex, ptex, drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]);
57
58 ctx->st->flush(ctx->st, 0, NULL);
59 }
60 }
61
62 static void
dri2_invalidate_drawable(__DRIdrawable * dPriv)63 dri2_invalidate_drawable(__DRIdrawable *dPriv)
64 {
65 struct dri_drawable *drawable = dri_drawable(dPriv);
66
67 dri2InvalidateDrawable(dPriv);
68 drawable->dPriv->lastStamp = drawable->dPriv->dri2.stamp;
69
70 p_atomic_inc(&drawable->base.stamp);
71 }
72
73 static const __DRI2flushExtension dri2FlushExtension = {
74 { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },
75 dri2_flush_drawable,
76 dri2_invalidate_drawable,
77 };
78
79 /**
80 * Retrieve __DRIbuffer from the DRI loader.
81 */
82 static __DRIbuffer *
dri2_drawable_get_buffers(struct dri_drawable * drawable,const enum st_attachment_type * statts,unsigned * count)83 dri2_drawable_get_buffers(struct dri_drawable *drawable,
84 const enum st_attachment_type *statts,
85 unsigned *count)
86 {
87 __DRIdrawable *dri_drawable = drawable->dPriv;
88 struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader;
89 boolean with_format;
90 __DRIbuffer *buffers;
91 int num_buffers;
92 unsigned attachments[10];
93 unsigned num_attachments, i;
94
95 assert(loader);
96 with_format = dri_with_format(drawable->sPriv);
97
98 num_attachments = 0;
99
100 /* for Xserver 1.6.0 (DRI2 version 1) we always need to ask for the front */
101 if (!with_format)
102 attachments[num_attachments++] = __DRI_BUFFER_FRONT_LEFT;
103
104 for (i = 0; i < *count; i++) {
105 enum pipe_format format;
106 unsigned bind;
107 int att, depth;
108
109 dri_drawable_get_format(drawable, statts[i], &format, &bind);
110 if (format == PIPE_FORMAT_NONE)
111 continue;
112
113 switch (statts[i]) {
114 case ST_ATTACHMENT_FRONT_LEFT:
115 /* already added */
116 if (!with_format)
117 continue;
118 att = __DRI_BUFFER_FRONT_LEFT;
119 break;
120 case ST_ATTACHMENT_BACK_LEFT:
121 att = __DRI_BUFFER_BACK_LEFT;
122 break;
123 case ST_ATTACHMENT_FRONT_RIGHT:
124 att = __DRI_BUFFER_FRONT_RIGHT;
125 break;
126 case ST_ATTACHMENT_BACK_RIGHT:
127 att = __DRI_BUFFER_BACK_RIGHT;
128 break;
129 case ST_ATTACHMENT_DEPTH_STENCIL:
130 att = __DRI_BUFFER_DEPTH_STENCIL;
131 break;
132 default:
133 att = -1;
134 break;
135 }
136
137 /*
138 * In this switch statement we must support all formats that
139 * may occur as the stvis->color_format or
140 * stvis->depth_stencil_format.
141 */
142 switch(format) {
143 case PIPE_FORMAT_B8G8R8A8_UNORM:
144 depth = 32;
145 break;
146 case PIPE_FORMAT_B8G8R8X8_UNORM:
147 depth = 24;
148 break;
149 case PIPE_FORMAT_B5G6R5_UNORM:
150 depth = 16;
151 break;
152 case PIPE_FORMAT_Z16_UNORM:
153 att = __DRI_BUFFER_DEPTH;
154 depth = 16;
155 break;
156 case PIPE_FORMAT_Z24X8_UNORM:
157 case PIPE_FORMAT_X8Z24_UNORM:
158 att = __DRI_BUFFER_DEPTH;
159 depth = 24;
160 break;
161 case PIPE_FORMAT_Z24_UNORM_S8_UINT:
162 case PIPE_FORMAT_S8_UINT_Z24_UNORM:
163 depth = 32;
164 break;
165 case PIPE_FORMAT_Z32_UNORM:
166 att = __DRI_BUFFER_DEPTH;
167 depth = 32;
168 break;
169 default:
170 depth = util_format_get_blocksizebits(format);
171 assert(!"Unexpected format in dri2_drawable_get_buffers()");
172 }
173
174 if (att >= 0) {
175 attachments[num_attachments++] = att;
176 if (with_format) {
177 attachments[num_attachments++] = depth;
178 }
179 }
180 }
181
182 if (with_format) {
183 num_attachments /= 2;
184 buffers = loader->getBuffersWithFormat(dri_drawable,
185 &dri_drawable->w, &dri_drawable->h,
186 attachments, num_attachments,
187 &num_buffers, dri_drawable->loaderPrivate);
188 }
189 else {
190 buffers = loader->getBuffers(dri_drawable,
191 &dri_drawable->w, &dri_drawable->h,
192 attachments, num_attachments,
193 &num_buffers, dri_drawable->loaderPrivate);
194 }
195
196 if (buffers)
197 *count = num_buffers;
198
199 return buffers;
200 }
201
202 /**
203 * Process __DRIbuffer and convert them into pipe_resources.
204 */
205 static void
dri2_drawable_process_buffers(struct dri_drawable * drawable,__DRIbuffer * buffers,unsigned count)206 dri2_drawable_process_buffers(struct dri_drawable *drawable,
207 __DRIbuffer *buffers, unsigned count)
208 {
209 struct dri_screen *screen = dri_screen(drawable->sPriv);
210 __DRIdrawable *dri_drawable = drawable->dPriv;
211 struct pipe_resource templ;
212 struct winsys_handle whandle;
213 boolean have_depth = FALSE;
214 unsigned i, bind;
215
216 if (drawable->old_num == count &&
217 drawable->old_w == dri_drawable->w &&
218 drawable->old_h == dri_drawable->h &&
219 memcmp(drawable->old, buffers, sizeof(__DRIbuffer) * count) == 0)
220 return;
221
222 for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
223 pipe_resource_reference(&drawable->textures[i], NULL);
224
225 memset(&templ, 0, sizeof(templ));
226 templ.target = screen->target;
227 templ.last_level = 0;
228 templ.width0 = dri_drawable->w;
229 templ.height0 = dri_drawable->h;
230 templ.depth0 = 1;
231 templ.array_size = 1;
232
233 memset(&whandle, 0, sizeof(whandle));
234
235 for (i = 0; i < count; i++) {
236 __DRIbuffer *buf = &buffers[i];
237 enum st_attachment_type statt;
238 enum pipe_format format;
239
240 switch (buf->attachment) {
241 case __DRI_BUFFER_FRONT_LEFT:
242 if (!screen->auto_fake_front) {
243 statt = ST_ATTACHMENT_INVALID;
244 break;
245 }
246 /* fallthrough */
247 case __DRI_BUFFER_FAKE_FRONT_LEFT:
248 statt = ST_ATTACHMENT_FRONT_LEFT;
249 break;
250 case __DRI_BUFFER_BACK_LEFT:
251 statt = ST_ATTACHMENT_BACK_LEFT;
252 break;
253 case __DRI_BUFFER_DEPTH:
254 case __DRI_BUFFER_DEPTH_STENCIL:
255 case __DRI_BUFFER_STENCIL:
256 /* use only the first depth/stencil buffer */
257 if (!have_depth) {
258 have_depth = TRUE;
259 statt = ST_ATTACHMENT_DEPTH_STENCIL;
260 }
261 else {
262 statt = ST_ATTACHMENT_INVALID;
263 }
264 break;
265 default:
266 statt = ST_ATTACHMENT_INVALID;
267 break;
268 }
269
270 dri_drawable_get_format(drawable, statt, &format, &bind);
271 if (statt == ST_ATTACHMENT_INVALID || format == PIPE_FORMAT_NONE)
272 continue;
273
274 templ.format = format;
275 templ.bind = bind;
276 whandle.handle = buf->name;
277 whandle.stride = buf->pitch;
278
279 drawable->textures[statt] =
280 screen->base.screen->resource_from_handle(screen->base.screen,
281 &templ, &whandle);
282 }
283
284 drawable->old_num = count;
285 drawable->old_w = dri_drawable->w;
286 drawable->old_h = dri_drawable->h;
287 memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * count);
288 }
289
290 static __DRIbuffer *
dri2_allocate_buffer(__DRIscreen * sPriv,unsigned attachment,unsigned format,int width,int height)291 dri2_allocate_buffer(__DRIscreen *sPriv,
292 unsigned attachment, unsigned format,
293 int width, int height)
294 {
295 struct dri_screen *screen = dri_screen(sPriv);
296 struct dri2_buffer *buffer;
297 struct pipe_resource templ;
298 enum pipe_format pf;
299 unsigned bind = 0;
300 struct winsys_handle whandle;
301
302 switch (attachment) {
303 case __DRI_BUFFER_FRONT_LEFT:
304 case __DRI_BUFFER_FAKE_FRONT_LEFT:
305 bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
306 break;
307 case __DRI_BUFFER_BACK_LEFT:
308 bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
309 break;
310 case __DRI_BUFFER_DEPTH:
311 case __DRI_BUFFER_DEPTH_STENCIL:
312 case __DRI_BUFFER_STENCIL:
313 bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */
314 break;
315 }
316
317 /* because we get the handle and stride */
318 bind |= PIPE_BIND_SHARED;
319
320 switch (format) {
321 case 32:
322 pf = PIPE_FORMAT_B8G8R8A8_UNORM;
323 break;
324 case 24:
325 pf = PIPE_FORMAT_B8G8R8X8_UNORM;
326 break;
327 case 16:
328 pf = PIPE_FORMAT_Z16_UNORM;
329 break;
330 default:
331 return NULL;
332 }
333
334 buffer = CALLOC_STRUCT(dri2_buffer);
335 if (!buffer)
336 return NULL;
337
338 memset(&templ, 0, sizeof(templ));
339 templ.bind = bind;
340 templ.format = pf;
341 templ.target = PIPE_TEXTURE_2D;
342 templ.last_level = 0;
343 templ.width0 = width;
344 templ.height0 = height;
345 templ.depth0 = 1;
346 templ.array_size = 1;
347
348 buffer->resource =
349 screen->base.screen->resource_create(screen->base.screen, &templ);
350 if (!buffer->resource) {
351 FREE(buffer);
352 return NULL;
353 }
354
355 memset(&whandle, 0, sizeof(whandle));
356 whandle.type = DRM_API_HANDLE_TYPE_SHARED;
357 screen->base.screen->resource_get_handle(screen->base.screen,
358 buffer->resource, &whandle);
359
360 buffer->base.attachment = attachment;
361 buffer->base.name = whandle.handle;
362 buffer->base.cpp = util_format_get_blocksize(pf);
363 buffer->base.pitch = whandle.stride;
364
365 return &buffer->base;
366 }
367
368 static void
dri2_release_buffer(__DRIscreen * sPriv,__DRIbuffer * bPriv)369 dri2_release_buffer(__DRIscreen *sPriv, __DRIbuffer *bPriv)
370 {
371 struct dri2_buffer *buffer = dri2_buffer(bPriv);
372
373 pipe_resource_reference(&buffer->resource, NULL);
374 FREE(buffer);
375 }
376
377 /*
378 * Backend functions for st_framebuffer interface.
379 */
380
381 static void
dri2_allocate_textures(struct dri_drawable * drawable,const enum st_attachment_type * statts,unsigned count)382 dri2_allocate_textures(struct dri_drawable *drawable,
383 const enum st_attachment_type *statts,
384 unsigned count)
385 {
386 __DRIbuffer *buffers;
387 unsigned num_buffers = count;
388
389 buffers = dri2_drawable_get_buffers(drawable, statts, &num_buffers);
390 if (buffers)
391 dri2_drawable_process_buffers(drawable, buffers, num_buffers);
392 }
393
394 static void
dri2_flush_frontbuffer(struct dri_drawable * drawable,enum st_attachment_type statt)395 dri2_flush_frontbuffer(struct dri_drawable *drawable,
396 enum st_attachment_type statt)
397 {
398 __DRIdrawable *dri_drawable = drawable->dPriv;
399 struct __DRIdri2LoaderExtensionRec *loader = drawable->sPriv->dri2.loader;
400
401 if (loader->flushFrontBuffer == NULL)
402 return;
403
404 if (statt == ST_ATTACHMENT_FRONT_LEFT) {
405 loader->flushFrontBuffer(dri_drawable, dri_drawable->loaderPrivate);
406 }
407 }
408
409 static void
dri2_update_tex_buffer(struct dri_drawable * drawable,struct dri_context * ctx,struct pipe_resource * res)410 dri2_update_tex_buffer(struct dri_drawable *drawable,
411 struct dri_context *ctx,
412 struct pipe_resource *res)
413 {
414 /* no-op */
415 }
416
417 static __DRIimage *
dri2_lookup_egl_image(struct dri_screen * screen,void * handle)418 dri2_lookup_egl_image(struct dri_screen *screen, void *handle)
419 {
420 __DRIimageLookupExtension *loader = screen->sPriv->dri2.image;
421 __DRIimage *img;
422
423 if (!loader->lookupEGLImage)
424 return NULL;
425
426 img = loader->lookupEGLImage(screen->sPriv,
427 handle, screen->sPriv->loaderPrivate);
428
429 return img;
430 }
431
432 static __DRIimage *
dri2_create_image_from_name(__DRIscreen * _screen,int width,int height,int format,int name,int pitch,void * loaderPrivate)433 dri2_create_image_from_name(__DRIscreen *_screen,
434 int width, int height, int format,
435 int name, int pitch, void *loaderPrivate)
436 {
437 struct dri_screen *screen = dri_screen(_screen);
438 __DRIimage *img;
439 struct pipe_resource templ;
440 struct winsys_handle whandle;
441 unsigned tex_usage;
442 enum pipe_format pf;
443
444 tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
445
446 switch (format) {
447 case __DRI_IMAGE_FORMAT_RGB565:
448 pf = PIPE_FORMAT_B5G6R5_UNORM;
449 break;
450 case __DRI_IMAGE_FORMAT_XRGB8888:
451 pf = PIPE_FORMAT_B8G8R8X8_UNORM;
452 break;
453 case __DRI_IMAGE_FORMAT_ARGB8888:
454 pf = PIPE_FORMAT_B8G8R8A8_UNORM;
455 break;
456 case __DRI_IMAGE_FORMAT_ABGR8888:
457 pf = PIPE_FORMAT_R8G8B8A8_UNORM;
458 break;
459 default:
460 pf = PIPE_FORMAT_NONE;
461 break;
462 }
463 if (pf == PIPE_FORMAT_NONE)
464 return NULL;
465
466 img = CALLOC_STRUCT(__DRIimageRec);
467 if (!img)
468 return NULL;
469
470 memset(&templ, 0, sizeof(templ));
471 templ.bind = tex_usage;
472 templ.format = pf;
473 templ.target = screen->target;
474 templ.last_level = 0;
475 templ.width0 = width;
476 templ.height0 = height;
477 templ.depth0 = 1;
478 templ.array_size = 1;
479
480 memset(&whandle, 0, sizeof(whandle));
481 whandle.handle = name;
482 whandle.stride = pitch * util_format_get_blocksize(pf);
483
484 img->texture = screen->base.screen->resource_from_handle(screen->base.screen,
485 &templ, &whandle);
486 if (!img->texture) {
487 FREE(img);
488 return NULL;
489 }
490
491 img->level = 0;
492 img->layer = 0;
493 img->dri_format = format;
494 img->loader_private = loaderPrivate;
495
496 return img;
497 }
498
499 static __DRIimage *
dri2_create_image_from_renderbuffer(__DRIcontext * context,int renderbuffer,void * loaderPrivate)500 dri2_create_image_from_renderbuffer(__DRIcontext *context,
501 int renderbuffer, void *loaderPrivate)
502 {
503 struct dri_context *ctx = dri_context(context);
504
505 if (!ctx->st->get_resource_for_egl_image)
506 return NULL;
507
508 /* TODO */
509 return NULL;
510 }
511
512 static __DRIimage *
dri2_create_image(__DRIscreen * _screen,int width,int height,int format,unsigned int use,void * loaderPrivate)513 dri2_create_image(__DRIscreen *_screen,
514 int width, int height, int format,
515 unsigned int use, void *loaderPrivate)
516 {
517 struct dri_screen *screen = dri_screen(_screen);
518 __DRIimage *img;
519 struct pipe_resource templ;
520 unsigned tex_usage;
521 enum pipe_format pf;
522
523 tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
524 if (use & __DRI_IMAGE_USE_SCANOUT)
525 tex_usage |= PIPE_BIND_SCANOUT;
526 if (use & __DRI_IMAGE_USE_SHARE)
527 tex_usage |= PIPE_BIND_SHARED;
528 if (use & __DRI_IMAGE_USE_CURSOR) {
529 if (width != 64 || height != 64)
530 return NULL;
531 tex_usage |= PIPE_BIND_CURSOR;
532 }
533
534 switch (format) {
535 case __DRI_IMAGE_FORMAT_RGB565:
536 pf = PIPE_FORMAT_B5G6R5_UNORM;
537 break;
538 case __DRI_IMAGE_FORMAT_XRGB8888:
539 pf = PIPE_FORMAT_B8G8R8X8_UNORM;
540 break;
541 case __DRI_IMAGE_FORMAT_ARGB8888:
542 pf = PIPE_FORMAT_B8G8R8A8_UNORM;
543 break;
544 case __DRI_IMAGE_FORMAT_ABGR8888:
545 pf = PIPE_FORMAT_R8G8B8A8_UNORM;
546 break;
547 default:
548 pf = PIPE_FORMAT_NONE;
549 break;
550 }
551 if (pf == PIPE_FORMAT_NONE)
552 return NULL;
553
554 img = CALLOC_STRUCT(__DRIimageRec);
555 if (!img)
556 return NULL;
557
558 memset(&templ, 0, sizeof(templ));
559 templ.bind = tex_usage;
560 templ.format = pf;
561 templ.target = PIPE_TEXTURE_2D;
562 templ.last_level = 0;
563 templ.width0 = width;
564 templ.height0 = height;
565 templ.depth0 = 1;
566 templ.array_size = 1;
567
568 img->texture = screen->base.screen->resource_create(screen->base.screen, &templ);
569 if (!img->texture) {
570 FREE(img);
571 return NULL;
572 }
573
574 img->level = 0;
575 img->layer = 0;
576 img->dri_format = format;
577 img->dri_components = 0;
578
579 img->loader_private = loaderPrivate;
580 return img;
581 }
582
583 static GLboolean
dri2_query_image(__DRIimage * image,int attrib,int * value)584 dri2_query_image(__DRIimage *image, int attrib, int *value)
585 {
586 struct winsys_handle whandle;
587 memset(&whandle, 0, sizeof(whandle));
588
589 switch (attrib) {
590 case __DRI_IMAGE_ATTRIB_STRIDE:
591 image->texture->screen->resource_get_handle(image->texture->screen,
592 image->texture, &whandle);
593 *value = whandle.stride;
594 return GL_TRUE;
595 case __DRI_IMAGE_ATTRIB_HANDLE:
596 whandle.type = DRM_API_HANDLE_TYPE_KMS;
597 image->texture->screen->resource_get_handle(image->texture->screen,
598 image->texture, &whandle);
599 *value = whandle.handle;
600 return GL_TRUE;
601 case __DRI_IMAGE_ATTRIB_NAME:
602 whandle.type = DRM_API_HANDLE_TYPE_SHARED;
603 image->texture->screen->resource_get_handle(image->texture->screen,
604 image->texture, &whandle);
605 *value = whandle.handle;
606 return GL_TRUE;
607 case __DRI_IMAGE_ATTRIB_FORMAT:
608 *value = image->dri_format;
609 return GL_TRUE;
610 case __DRI_IMAGE_ATTRIB_WIDTH:
611 *value = image->texture->width0;
612 return GL_TRUE;
613 case __DRI_IMAGE_ATTRIB_HEIGHT:
614 *value = image->texture->height0;
615 return GL_TRUE;
616 case __DRI_IMAGE_ATTRIB_COMPONENTS:
617 if (image->dri_components == 0)
618 return GL_FALSE;
619 *value = image->dri_components;
620 return GL_TRUE;
621 default:
622 return GL_FALSE;
623 }
624 }
625
626 static __DRIimage *
dri2_dup_image(__DRIimage * image,void * loaderPrivate)627 dri2_dup_image(__DRIimage *image, void *loaderPrivate)
628 {
629 __DRIimage *img;
630
631 img = CALLOC_STRUCT(__DRIimageRec);
632 if (!img)
633 return NULL;
634
635 img->texture = NULL;
636 pipe_resource_reference(&img->texture, image->texture);
637 img->level = image->level;
638 img->layer = image->layer;
639 /* This should be 0 for sub images, but dup is also used for base images. */
640 img->dri_components = image->dri_components;
641 img->loader_private = loaderPrivate;
642
643 return img;
644 }
645
646 static GLboolean
dri2_validate_usage(__DRIimage * image,unsigned int use)647 dri2_validate_usage(__DRIimage *image, unsigned int use)
648 {
649 /*
650 * Gallium drivers are bad at adding usages to the resources
651 * once opened again in another process, which is the main use
652 * case for this, so we have to lie.
653 */
654 if (image != NULL)
655 return GL_TRUE;
656 else
657 return GL_FALSE;
658 }
659
660 static __DRIimage *
dri2_from_names(__DRIscreen * screen,int width,int height,int format,int * names,int num_names,int * strides,int * offsets,void * loaderPrivate)661 dri2_from_names(__DRIscreen *screen, int width, int height, int format,
662 int *names, int num_names, int *strides, int *offsets,
663 void *loaderPrivate)
664 {
665 __DRIimage *img;
666 int stride, dri_components;
667
668 if (num_names != 1)
669 return NULL;
670 if (offsets[0] != 0)
671 return NULL;
672
673 switch(format) {
674 case __DRI_IMAGE_FOURCC_RGB565:
675 format = __DRI_IMAGE_FORMAT_RGB565;
676 dri_components = __DRI_IMAGE_COMPONENTS_RGB;
677 break;
678 case __DRI_IMAGE_FOURCC_ARGB8888:
679 format = __DRI_IMAGE_FORMAT_ARGB8888;
680 dri_components = __DRI_IMAGE_COMPONENTS_RGBA;
681 break;
682 case __DRI_IMAGE_FOURCC_XRGB8888:
683 format = __DRI_IMAGE_FORMAT_XRGB8888;
684 dri_components = __DRI_IMAGE_COMPONENTS_RGB;
685 break;
686 case __DRI_IMAGE_FOURCC_ABGR8888:
687 format = __DRI_IMAGE_FORMAT_ABGR8888;
688 dri_components = __DRI_IMAGE_COMPONENTS_RGBA;
689 break;
690 case __DRI_IMAGE_FOURCC_XBGR8888:
691 format = __DRI_IMAGE_FORMAT_XBGR8888;
692 dri_components = __DRI_IMAGE_COMPONENTS_RGB;
693 break;
694 default:
695 return NULL;
696 }
697
698 /* Strides are in bytes not pixels. */
699 stride = strides[0] /4;
700
701 img = dri2_create_image_from_name(screen, width, height, format,
702 names[0], stride, loaderPrivate);
703 if (img == NULL)
704 return NULL;
705
706 img->dri_components = dri_components;
707 return img;
708 }
709
710 static __DRIimage *
dri2_from_planar(__DRIimage * image,int plane,void * loaderPrivate)711 dri2_from_planar(__DRIimage *image, int plane, void *loaderPrivate)
712 {
713 __DRIimage *img;
714
715 if (plane != 0)
716 return NULL;
717
718 if (image->dri_components == 0)
719 return NULL;
720
721 img = dri2_dup_image(image, loaderPrivate);
722 if (img == NULL)
723 return NULL;
724
725 /* set this to 0 for sub images. */
726 img->dri_components = 0;
727 return img;
728 }
729
730 static void
dri2_destroy_image(__DRIimage * img)731 dri2_destroy_image(__DRIimage *img)
732 {
733 pipe_resource_reference(&img->texture, NULL);
734 FREE(img);
735 }
736
737 static struct __DRIimageExtensionRec dri2ImageExtension = {
738 { __DRI_IMAGE, 5 },
739 dri2_create_image_from_name,
740 dri2_create_image_from_renderbuffer,
741 dri2_destroy_image,
742 dri2_create_image,
743 dri2_query_image,
744 dri2_dup_image,
745 dri2_validate_usage,
746 dri2_from_names,
747 dri2_from_planar,
748 };
749
750 /*
751 * Backend function init_screen.
752 */
753
754 static const __DRIextension *dri_screen_extensions[] = {
755 &driTexBufferExtension.base,
756 &dri2FlushExtension.base,
757 &dri2ImageExtension.base,
758 &dri2ConfigQueryExtension.base,
759 NULL
760 };
761
762 static const __DRIextension *dri_screen_extensions_throttle[] = {
763 &driTexBufferExtension.base,
764 &dri2FlushExtension.base,
765 &dri2ImageExtension.base,
766 &dri2ConfigQueryExtension.base,
767 &dri2ThrottleExtension.base,
768 NULL
769 };
770
771 /**
772 * This is the driver specific part of the createNewScreen entry point.
773 *
774 * Returns the struct gl_config supported by this driver.
775 */
776 static const __DRIconfig **
dri2_init_screen(__DRIscreen * sPriv)777 dri2_init_screen(__DRIscreen * sPriv)
778 {
779 const __DRIconfig **configs;
780 struct dri_screen *screen;
781 struct pipe_screen *pscreen;
782 const struct drm_conf_ret *throttle_ret = NULL;
783
784 screen = CALLOC_STRUCT(dri_screen);
785 if (!screen)
786 return NULL;
787
788 screen->sPriv = sPriv;
789 screen->fd = sPriv->fd;
790
791 sPriv->driverPrivate = (void *)screen;
792
793 pscreen = driver_descriptor.create_screen(screen->fd);
794 if (driver_descriptor.configuration)
795 throttle_ret = driver_descriptor.configuration(DRM_CONF_THROTTLE);
796
797 if (throttle_ret && throttle_ret->val.val_int != -1) {
798 sPriv->extensions = dri_screen_extensions_throttle;
799 screen->default_throttle_frames = throttle_ret->val.val_int;
800 } else
801 sPriv->extensions = dri_screen_extensions;
802
803 /* dri_init_screen_helper checks pscreen for us */
804
805 configs = dri_init_screen_helper(screen, pscreen, 32);
806 if (!configs)
807 goto fail;
808
809 sPriv->api_mask = 0;
810 if (screen->st_api->profile_mask & ST_PROFILE_DEFAULT_MASK)
811 sPriv->api_mask |= 1 << __DRI_API_OPENGL;
812 if (screen->st_api->profile_mask & ST_PROFILE_OPENGL_ES1_MASK)
813 sPriv->api_mask |= 1 << __DRI_API_GLES;
814 if (screen->st_api->profile_mask & ST_PROFILE_OPENGL_ES2_MASK)
815 sPriv->api_mask |= 1 << __DRI_API_GLES2;
816
817 screen->auto_fake_front = dri_with_format(sPriv);
818 screen->broken_invalidate = !sPriv->dri2.useInvalidate;
819 screen->lookup_egl_image = dri2_lookup_egl_image;
820
821 return configs;
822 fail:
823 dri_destroy_screen_helper(screen);
824 FREE(screen);
825 return NULL;
826 }
827
828 static boolean
dri2_create_buffer(__DRIscreen * sPriv,__DRIdrawable * dPriv,const struct gl_config * visual,boolean isPixmap)829 dri2_create_buffer(__DRIscreen * sPriv,
830 __DRIdrawable * dPriv,
831 const struct gl_config * visual, boolean isPixmap)
832 {
833 struct dri_drawable *drawable = NULL;
834
835 if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap))
836 return FALSE;
837
838 drawable = dPriv->driverPrivate;
839
840 drawable->allocate_textures = dri2_allocate_textures;
841 drawable->flush_frontbuffer = dri2_flush_frontbuffer;
842 drawable->update_tex_buffer = dri2_update_tex_buffer;
843
844 return TRUE;
845 }
846
847 /**
848 * DRI driver virtual function table.
849 *
850 * DRI versions differ in their implementation of init_screen and swap_buffers.
851 */
852 const struct __DriverAPIRec driDriverAPI = {
853 .InitScreen = dri2_init_screen,
854 .DestroyScreen = dri_destroy_screen,
855 .CreateContext = dri_create_context,
856 .DestroyContext = dri_destroy_context,
857 .CreateBuffer = dri2_create_buffer,
858 .DestroyBuffer = dri_destroy_buffer,
859 .MakeCurrent = dri_make_current,
860 .UnbindContext = dri_unbind_context,
861
862 .AllocateBuffer = dri2_allocate_buffer,
863 .ReleaseBuffer = dri2_release_buffer,
864 };
865
866 /* This is the table of extensions that the loader will dlsym() for. */
867 PUBLIC const __DRIextension *__driDriverExtensions[] = {
868 &driCoreExtension.base,
869 &driDRI2Extension.base,
870 NULL
871 };
872
873 /* vim: set sw=3 ts=8 sts=3 expandtab: */
874