1 /**************************************************************************
2 *
3 * Copyright 2009, VMware, Inc.
4 * All Rights Reserved.
5 * Copyright 2010 George Sapountzis <gsapountzis@gmail.com>
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * 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
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
29 #include "util/format/u_format.h"
30 #include "util/u_memory.h"
31 #include "util/u_inlines.h"
32 #include "util/u_box.h"
33 #include "pipe/p_context.h"
34 #include "pipe-loader/pipe_loader.h"
35 #include "frontend/drisw_api.h"
36 #include "state_tracker/st_context.h"
37
38 #include "dri_screen.h"
39 #include "dri_context.h"
40 #include "dri_drawable.h"
41 #include "dri_helpers.h"
42 #include "dri_query_renderer.h"
43
44 DEBUG_GET_ONCE_BOOL_OPTION(swrast_no_present, "SWRAST_NO_PRESENT", FALSE);
45
46 static inline void
get_drawable_info(__DRIdrawable * dPriv,int * x,int * y,int * w,int * h)47 get_drawable_info(__DRIdrawable *dPriv, int *x, int *y, int *w, int *h)
48 {
49 __DRIscreen *sPriv = dPriv->driScreenPriv;
50 const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
51
52 loader->getDrawableInfo(dPriv,
53 x, y, w, h,
54 dPriv->loaderPrivate);
55 }
56
57 static inline void
put_image(__DRIdrawable * dPriv,void * data,unsigned width,unsigned height)58 put_image(__DRIdrawable *dPriv, void *data, unsigned width, unsigned height)
59 {
60 __DRIscreen *sPriv = dPriv->driScreenPriv;
61 const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
62
63 loader->putImage(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP,
64 0, 0, width, height,
65 data, dPriv->loaderPrivate);
66 }
67
68 static inline void
put_image2(__DRIdrawable * dPriv,void * data,int x,int y,unsigned width,unsigned height,unsigned stride)69 put_image2(__DRIdrawable *dPriv, void *data, int x, int y,
70 unsigned width, unsigned height, unsigned stride)
71 {
72 __DRIscreen *sPriv = dPriv->driScreenPriv;
73 const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
74
75 loader->putImage2(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP,
76 x, y, width, height, stride,
77 data, dPriv->loaderPrivate);
78 }
79
80 static inline void
put_image_shm(__DRIdrawable * dPriv,int shmid,char * shmaddr,unsigned offset,unsigned offset_x,int x,int y,unsigned width,unsigned height,unsigned stride)81 put_image_shm(__DRIdrawable *dPriv, int shmid, char *shmaddr,
82 unsigned offset, unsigned offset_x, int x, int y,
83 unsigned width, unsigned height, unsigned stride)
84 {
85 __DRIscreen *sPriv = dPriv->driScreenPriv;
86 const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
87
88 /* if we have the newer interface, don't have to add the offset_x here. */
89 if (loader->base.version > 4 && loader->putImageShm2)
90 loader->putImageShm2(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP,
91 x, y, width, height, stride,
92 shmid, shmaddr, offset, dPriv->loaderPrivate);
93 else
94 loader->putImageShm(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP,
95 x, y, width, height, stride,
96 shmid, shmaddr, offset + offset_x, dPriv->loaderPrivate);
97 }
98
99 static inline void
get_image(__DRIdrawable * dPriv,int x,int y,int width,int height,void * data)100 get_image(__DRIdrawable *dPriv, int x, int y, int width, int height, void *data)
101 {
102 __DRIscreen *sPriv = dPriv->driScreenPriv;
103 const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
104
105 loader->getImage(dPriv,
106 x, y, width, height,
107 data, dPriv->loaderPrivate);
108 }
109
110 static inline void
get_image2(__DRIdrawable * dPriv,int x,int y,int width,int height,int stride,void * data)111 get_image2(__DRIdrawable *dPriv, int x, int y, int width, int height, int stride, void *data)
112 {
113 __DRIscreen *sPriv = dPriv->driScreenPriv;
114 const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
115
116 /* getImage2 support is only in version 3 or newer */
117 if (loader->base.version < 3)
118 return;
119
120 loader->getImage2(dPriv,
121 x, y, width, height, stride,
122 data, dPriv->loaderPrivate);
123 }
124
125 static inline bool
get_image_shm(__DRIdrawable * dPriv,int x,int y,int width,int height,struct pipe_resource * res)126 get_image_shm(__DRIdrawable *dPriv, int x, int y, int width, int height,
127 struct pipe_resource *res)
128 {
129 __DRIscreen *sPriv = dPriv->driScreenPriv;
130 const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
131 struct winsys_handle whandle;
132
133 whandle.type = WINSYS_HANDLE_TYPE_SHMID;
134
135 if (loader->base.version < 4 || !loader->getImageShm)
136 return FALSE;
137
138 if (!res->screen->resource_get_handle(res->screen, NULL, res, &whandle, PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE))
139 return FALSE;
140
141 if (loader->base.version > 5 && loader->getImageShm2)
142 return loader->getImageShm2(dPriv, x, y, width, height, whandle.handle, dPriv->loaderPrivate);
143
144 loader->getImageShm(dPriv, x, y, width, height, whandle.handle, dPriv->loaderPrivate);
145 return TRUE;
146 }
147
148 static void
drisw_update_drawable_info(struct dri_drawable * drawable)149 drisw_update_drawable_info(struct dri_drawable *drawable)
150 {
151 __DRIdrawable *dPriv = drawable->dPriv;
152 int x, y;
153
154 get_drawable_info(dPriv, &x, &y, &dPriv->w, &dPriv->h);
155 }
156
157 static void
drisw_get_image(struct dri_drawable * drawable,int x,int y,unsigned width,unsigned height,unsigned stride,void * data)158 drisw_get_image(struct dri_drawable *drawable,
159 int x, int y, unsigned width, unsigned height, unsigned stride,
160 void *data)
161 {
162 __DRIdrawable *dPriv = drawable->dPriv;
163 int draw_x, draw_y, draw_w, draw_h;
164
165 get_drawable_info(dPriv, &draw_x, &draw_y, &draw_w, &draw_h);
166 get_image2(dPriv, x, y, draw_w, draw_h, stride, data);
167 }
168
169 static void
drisw_put_image(struct dri_drawable * drawable,void * data,unsigned width,unsigned height)170 drisw_put_image(struct dri_drawable *drawable,
171 void *data, unsigned width, unsigned height)
172 {
173 __DRIdrawable *dPriv = drawable->dPriv;
174
175 put_image(dPriv, data, width, height);
176 }
177
178 static void
drisw_put_image2(struct dri_drawable * drawable,void * data,int x,int y,unsigned width,unsigned height,unsigned stride)179 drisw_put_image2(struct dri_drawable *drawable,
180 void *data, int x, int y, unsigned width, unsigned height,
181 unsigned stride)
182 {
183 __DRIdrawable *dPriv = drawable->dPriv;
184
185 put_image2(dPriv, data, x, y, width, height, stride);
186 }
187
188 static inline void
drisw_put_image_shm(struct dri_drawable * drawable,int shmid,char * shmaddr,unsigned offset,unsigned offset_x,int x,int y,unsigned width,unsigned height,unsigned stride)189 drisw_put_image_shm(struct dri_drawable *drawable,
190 int shmid, char *shmaddr, unsigned offset,
191 unsigned offset_x,
192 int x, int y, unsigned width, unsigned height,
193 unsigned stride)
194 {
195 __DRIdrawable *dPriv = drawable->dPriv;
196
197 put_image_shm(dPriv, shmid, shmaddr, offset, offset_x, x, y, width, height, stride);
198 }
199
200 static inline void
drisw_present_texture(struct pipe_context * pipe,__DRIdrawable * dPriv,struct pipe_resource * ptex,struct pipe_box * sub_box)201 drisw_present_texture(struct pipe_context *pipe, __DRIdrawable *dPriv,
202 struct pipe_resource *ptex, struct pipe_box *sub_box)
203 {
204 struct dri_drawable *drawable = dri_drawable(dPriv);
205 struct dri_screen *screen = dri_screen(drawable->sPriv);
206
207 if (screen->swrast_no_present)
208 return;
209
210 screen->base.screen->flush_frontbuffer(screen->base.screen, pipe, ptex, 0, 0, drawable, sub_box);
211 }
212
213 static inline void
drisw_invalidate_drawable(__DRIdrawable * dPriv)214 drisw_invalidate_drawable(__DRIdrawable *dPriv)
215 {
216 struct dri_drawable *drawable = dri_drawable(dPriv);
217
218 drawable->texture_stamp = dPriv->lastStamp - 1;
219
220 p_atomic_inc(&drawable->base.stamp);
221 }
222
223 static inline void
drisw_copy_to_front(struct pipe_context * pipe,__DRIdrawable * dPriv,struct pipe_resource * ptex)224 drisw_copy_to_front(struct pipe_context *pipe,
225 __DRIdrawable * dPriv,
226 struct pipe_resource *ptex)
227 {
228 drisw_present_texture(pipe, dPriv, ptex, NULL);
229
230 drisw_invalidate_drawable(dPriv);
231 }
232
233 /*
234 * Backend functions for st_framebuffer interface and swap_buffers.
235 */
236
237 static void
drisw_swap_buffers(__DRIdrawable * dPriv)238 drisw_swap_buffers(__DRIdrawable *dPriv)
239 {
240 struct dri_context *ctx = dri_get_current(dPriv->driScreenPriv);
241 struct dri_drawable *drawable = dri_drawable(dPriv);
242 struct dri_screen *screen = dri_screen(drawable->sPriv);
243 struct pipe_resource *ptex;
244
245 if (!ctx)
246 return;
247
248 ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
249
250 if (ptex) {
251 struct pipe_fence_handle *fence = NULL;
252 if (ctx->pp)
253 pp_run(ctx->pp, ptex, ptex, drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]);
254
255 if (ctx->hud)
256 hud_run(ctx->hud, ctx->st->cso_context, ptex);
257
258 ctx->st->flush(ctx->st, ST_FLUSH_FRONT, &fence, NULL, NULL);
259
260 if (drawable->stvis.samples > 1) {
261 /* Resolve the back buffer. */
262 dri_pipe_blit(ctx->st->pipe,
263 drawable->textures[ST_ATTACHMENT_BACK_LEFT],
264 drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT]);
265 }
266
267 screen->base.screen->fence_finish(screen->base.screen, ctx->st->pipe,
268 fence, PIPE_TIMEOUT_INFINITE);
269 screen->base.screen->fence_reference(screen->base.screen, &fence, NULL);
270 drisw_copy_to_front(ctx->st->pipe, dPriv, ptex);
271 }
272 }
273
274 static void
drisw_copy_sub_buffer(__DRIdrawable * dPriv,int x,int y,int w,int h)275 drisw_copy_sub_buffer(__DRIdrawable *dPriv, int x, int y,
276 int w, int h)
277 {
278 struct dri_context *ctx = dri_get_current(dPriv->driScreenPriv);
279 struct dri_drawable *drawable = dri_drawable(dPriv);
280 struct dri_screen *screen = dri_screen(drawable->sPriv);
281 struct pipe_resource *ptex;
282 struct pipe_box box;
283 if (!ctx)
284 return;
285
286 ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
287
288 if (ptex) {
289 struct pipe_fence_handle *fence = NULL;
290 if (ctx->pp && drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL])
291 pp_run(ctx->pp, ptex, ptex, drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]);
292
293 ctx->st->flush(ctx->st, ST_FLUSH_FRONT, &fence, NULL, NULL);
294
295 screen->base.screen->fence_finish(screen->base.screen, ctx->st->pipe,
296 fence, PIPE_TIMEOUT_INFINITE);
297 screen->base.screen->fence_reference(screen->base.screen, &fence, NULL);
298
299 if (drawable->stvis.samples > 1) {
300 /* Resolve the back buffer. */
301 dri_pipe_blit(ctx->st->pipe,
302 drawable->textures[ST_ATTACHMENT_BACK_LEFT],
303 drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT]);
304 }
305
306 u_box_2d(x, dPriv->h - y - h, w, h, &box);
307 drisw_present_texture(ctx->st->pipe, dPriv, ptex, &box);
308 }
309 }
310
311 static bool
drisw_flush_frontbuffer(struct dri_context * ctx,struct dri_drawable * drawable,enum st_attachment_type statt)312 drisw_flush_frontbuffer(struct dri_context *ctx,
313 struct dri_drawable *drawable,
314 enum st_attachment_type statt)
315 {
316 struct pipe_resource *ptex;
317
318 if (!ctx || statt != ST_ATTACHMENT_FRONT_LEFT)
319 return false;
320
321 if (drawable->stvis.samples > 1) {
322 /* Resolve the front buffer. */
323 dri_pipe_blit(ctx->st->pipe,
324 drawable->textures[ST_ATTACHMENT_FRONT_LEFT],
325 drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT]);
326 }
327 ptex = drawable->textures[statt];
328
329 if (ptex) {
330 drisw_copy_to_front(ctx->st->pipe, ctx->dPriv, ptex);
331 }
332
333 return true;
334 }
335
336 /**
337 * Allocate framebuffer attachments.
338 *
339 * During fixed-size operation, the function keeps allocating new attachments
340 * as they are requested. Unused attachments are not removed, not until the
341 * framebuffer is resized or destroyed.
342 */
343 static void
drisw_allocate_textures(struct dri_context * stctx,struct dri_drawable * drawable,const enum st_attachment_type * statts,unsigned count)344 drisw_allocate_textures(struct dri_context *stctx,
345 struct dri_drawable *drawable,
346 const enum st_attachment_type *statts,
347 unsigned count)
348 {
349 struct dri_screen *screen = dri_screen(drawable->sPriv);
350 const __DRIswrastLoaderExtension *loader = drawable->dPriv->driScreenPriv->swrast_loader;
351 struct pipe_resource templ;
352 unsigned width, height;
353 boolean resized;
354 unsigned i;
355
356 width = drawable->dPriv->w;
357 height = drawable->dPriv->h;
358
359 resized = (drawable->old_w != width ||
360 drawable->old_h != height);
361
362 /* remove outdated textures */
363 if (resized) {
364 for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
365 pipe_resource_reference(&drawable->textures[i], NULL);
366 pipe_resource_reference(&drawable->msaa_textures[i], NULL);
367 }
368 }
369
370 memset(&templ, 0, sizeof(templ));
371 templ.target = screen->target;
372 templ.width0 = width;
373 templ.height0 = height;
374 templ.depth0 = 1;
375 templ.array_size = 1;
376 templ.last_level = 0;
377
378 for (i = 0; i < count; i++) {
379 enum pipe_format format;
380 unsigned bind;
381
382 /* the texture already exists or not requested */
383 if (drawable->textures[statts[i]])
384 continue;
385
386 dri_drawable_get_format(drawable, statts[i], &format, &bind);
387
388 /* if we don't do any present, no need for display targets */
389 if (statts[i] != ST_ATTACHMENT_DEPTH_STENCIL && !screen->swrast_no_present)
390 bind |= PIPE_BIND_DISPLAY_TARGET;
391
392 if (format == PIPE_FORMAT_NONE)
393 continue;
394
395 templ.format = format;
396 templ.bind = bind;
397 templ.nr_samples = 0;
398 templ.nr_storage_samples = 0;
399
400 if (statts[i] == ST_ATTACHMENT_FRONT_LEFT &&
401 screen->base.screen->resource_create_front &&
402 loader->base.version >= 3) {
403 drawable->textures[statts[i]] =
404 screen->base.screen->resource_create_front(screen->base.screen, &templ, (const void *)drawable);
405 } else
406 drawable->textures[statts[i]] =
407 screen->base.screen->resource_create(screen->base.screen, &templ);
408
409 if (drawable->stvis.samples > 1) {
410 templ.bind = templ.bind &
411 ~(PIPE_BIND_SCANOUT | PIPE_BIND_SHARED | PIPE_BIND_DISPLAY_TARGET);
412 templ.nr_samples = drawable->stvis.samples;
413 templ.nr_storage_samples = drawable->stvis.samples;
414 drawable->msaa_textures[statts[i]] =
415 screen->base.screen->resource_create(screen->base.screen, &templ);
416
417 dri_pipe_blit(stctx->st->pipe,
418 drawable->msaa_textures[statts[i]],
419 drawable->textures[statts[i]]);
420 }
421 }
422
423 drawable->old_w = width;
424 drawable->old_h = height;
425 }
426
427 static void
drisw_update_tex_buffer(struct dri_drawable * drawable,struct dri_context * ctx,struct pipe_resource * res)428 drisw_update_tex_buffer(struct dri_drawable *drawable,
429 struct dri_context *ctx,
430 struct pipe_resource *res)
431 {
432 __DRIdrawable *dPriv = drawable->dPriv;
433
434 struct st_context *st_ctx = (struct st_context *)ctx->st;
435 struct pipe_context *pipe = st_ctx->pipe;
436 struct pipe_transfer *transfer;
437 char *map;
438 int x, y, w, h;
439 int ximage_stride, line;
440 int cpp = util_format_get_blocksize(res->format);
441
442 get_drawable_info(dPriv, &x, &y, &w, &h);
443
444 map = pipe_texture_map(pipe, res,
445 0, 0, // level, layer,
446 PIPE_MAP_WRITE,
447 x, y, w, h, &transfer);
448
449 /* Copy the Drawable content to the mapped texture buffer */
450 if (!get_image_shm(dPriv, x, y, w, h, res))
451 get_image(dPriv, x, y, w, h, map);
452
453 /* The pipe transfer has a pitch rounded up to the nearest 64 pixels.
454 get_image() has a pitch rounded up to 4 bytes. */
455 ximage_stride = ((w * cpp) + 3) & -4;
456 for (line = h-1; line; --line) {
457 memmove(&map[line * transfer->stride],
458 &map[line * ximage_stride],
459 ximage_stride);
460 }
461
462 pipe_texture_unmap(pipe, transfer);
463 }
464
465 static __DRIimageExtension driSWImageExtension = {
466 .base = { __DRI_IMAGE, 6 },
467
468 .createImageFromRenderbuffer = dri2_create_image_from_renderbuffer,
469 .createImageFromTexture = dri2_create_from_texture,
470 .destroyImage = dri2_destroy_image,
471 };
472
473 static const __DRIrobustnessExtension dri2Robustness = {
474 .base = { __DRI2_ROBUSTNESS, 1 }
475 };
476
477 /*
478 * Backend function for init_screen.
479 */
480
481 static const __DRIextension *drisw_screen_extensions[] = {
482 &driTexBufferExtension.base,
483 &dri2RendererQueryExtension.base,
484 &dri2ConfigQueryExtension.base,
485 &dri2FenceExtension.base,
486 &driSWImageExtension.base,
487 &dri2FlushControlExtension.base,
488 NULL
489 };
490
491 static const __DRIextension *drisw_robust_screen_extensions[] = {
492 &driTexBufferExtension.base,
493 &dri2RendererQueryExtension.base,
494 &dri2ConfigQueryExtension.base,
495 &dri2FenceExtension.base,
496 &dri2Robustness.base,
497 &driSWImageExtension.base,
498 &dri2FlushControlExtension.base,
499 NULL
500 };
501
502 static const struct drisw_loader_funcs drisw_lf = {
503 .get_image = drisw_get_image,
504 .put_image = drisw_put_image,
505 .put_image2 = drisw_put_image2
506 };
507
508 static const struct drisw_loader_funcs drisw_shm_lf = {
509 .get_image = drisw_get_image,
510 .put_image = drisw_put_image,
511 .put_image2 = drisw_put_image2,
512 .put_image_shm = drisw_put_image_shm
513 };
514
515 static const __DRIconfig **
drisw_init_screen(__DRIscreen * sPriv)516 drisw_init_screen(__DRIscreen * sPriv)
517 {
518 const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
519 const __DRIconfig **configs;
520 struct dri_screen *screen;
521 struct pipe_screen *pscreen = NULL;
522 const struct drisw_loader_funcs *lf = &drisw_lf;
523
524 screen = CALLOC_STRUCT(dri_screen);
525 if (!screen)
526 return NULL;
527
528 screen->sPriv = sPriv;
529 screen->fd = sPriv->fd;
530
531 screen->swrast_no_present = debug_get_option_swrast_no_present();
532
533 sPriv->driverPrivate = (void *)screen;
534
535 if (loader->base.version >= 4) {
536 if (loader->putImageShm)
537 lf = &drisw_shm_lf;
538 }
539
540 bool success = false;
541 #ifdef HAVE_DRISW_KMS
542 if (screen->fd != -1)
543 success = pipe_loader_sw_probe_kms(&screen->dev, screen->fd);
544 #endif
545 if (!success)
546 success = pipe_loader_sw_probe_dri(&screen->dev, lf);
547 if (success) {
548 pscreen = pipe_loader_create_screen(screen->dev);
549 dri_init_options(screen);
550 }
551
552 if (!pscreen)
553 goto fail;
554
555 configs = dri_init_screen_helper(screen, pscreen);
556 if (!configs)
557 goto fail;
558
559 if (pscreen->get_param(pscreen, PIPE_CAP_DEVICE_RESET_STATUS_QUERY)) {
560 sPriv->extensions = drisw_robust_screen_extensions;
561 screen->has_reset_status_query = true;
562 }
563 else
564 sPriv->extensions = drisw_screen_extensions;
565 screen->lookup_egl_image = dri2_lookup_egl_image;
566
567 const __DRIimageLookupExtension *image = sPriv->dri2.image;
568 if (image &&
569 image->base.version >= 2 &&
570 image->validateEGLImage &&
571 image->lookupEGLImageValidated) {
572 screen->validate_egl_image = dri2_validate_egl_image;
573 screen->lookup_egl_image_validated = dri2_lookup_egl_image_validated;
574 }
575
576 return configs;
577 fail:
578 dri_destroy_screen_helper(screen);
579 if (screen->dev)
580 pipe_loader_release(&screen->dev, 1);
581 FREE(screen);
582 return NULL;
583 }
584
585 static boolean
drisw_create_buffer(__DRIscreen * sPriv,__DRIdrawable * dPriv,const struct gl_config * visual,boolean isPixmap)586 drisw_create_buffer(__DRIscreen * sPriv,
587 __DRIdrawable * dPriv,
588 const struct gl_config * visual, boolean isPixmap)
589 {
590 struct dri_drawable *drawable = NULL;
591
592 if (!dri_create_buffer(sPriv, dPriv, visual, isPixmap))
593 return FALSE;
594
595 drawable = dPriv->driverPrivate;
596
597 drawable->allocate_textures = drisw_allocate_textures;
598 drawable->update_drawable_info = drisw_update_drawable_info;
599 drawable->flush_frontbuffer = drisw_flush_frontbuffer;
600 drawable->update_tex_buffer = drisw_update_tex_buffer;
601
602 return TRUE;
603 }
604
605 /**
606 * DRI driver virtual function table.
607 *
608 * DRI versions differ in their implementation of init_screen and swap_buffers.
609 */
610 const struct __DriverAPIRec galliumsw_driver_api = {
611 .InitScreen = drisw_init_screen,
612 .DestroyScreen = dri_destroy_screen,
613 .CreateBuffer = drisw_create_buffer,
614 .DestroyBuffer = dri_destroy_buffer,
615 .SwapBuffers = drisw_swap_buffers,
616 .CopySubBuffer = drisw_copy_sub_buffer,
617 };
618
619 static const struct __DRIDriverVtableExtensionRec galliumsw_vtable = {
620 .base = { __DRI_DRIVER_VTABLE, 1 },
621 .vtable = &galliumsw_driver_api,
622 };
623
624 /* swrast copy sub buffer entrypoint. */
driswCopySubBuffer(__DRIdrawable * pdp,int x,int y,int w,int h)625 static void driswCopySubBuffer(__DRIdrawable *pdp, int x, int y,
626 int w, int h)
627 {
628 assert(pdp->driScreenPriv->swrast_loader);
629
630 pdp->driScreenPriv->driver->CopySubBuffer(pdp, x, y, w, h);
631 }
632
633 /* for swrast only */
634 const __DRIcopySubBufferExtension driSWCopySubBufferExtension = {
635 .base = { __DRI_COPY_SUB_BUFFER, 1 },
636
637 .copySubBuffer = driswCopySubBuffer,
638 };
639
640 /* This is the table of extensions that the loader will dlsym() for. */
641 const __DRIextension *galliumsw_driver_extensions[] = {
642 &driCoreExtension.base,
643 &driSWRastExtension.base,
644 &driSWCopySubBufferExtension.base,
645 &gallium_config_options.base,
646 &galliumsw_vtable.base,
647 NULL
648 };
649
650 /* vim: set sw=3 ts=8 sts=3 expandtab: */
651