1 /*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 2010 LunarG Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Chia-I Wu <[email protected]>
26 */
27
28 #include "main/mtypes.h"
29 #include "main/extensions.h"
30 #include "main/context.h"
31 #include "main/debug_output.h"
32 #include "main/framebuffer.h"
33 #include "main/glthread.h"
34 #include "main/texobj.h"
35 #include "main/teximage.h"
36 #include "main/texstate.h"
37 #include "main/errors.h"
38 #include "main/framebuffer.h"
39 #include "main/fbobject.h"
40 #include "main/renderbuffer.h"
41 #include "main/version.h"
42 #include "util/hash_table.h"
43 #include "st_texture.h"
44
45 #include "st_context.h"
46 #include "st_debug.h"
47 #include "st_extensions.h"
48 #include "st_format.h"
49 #include "st_cb_bitmap.h"
50 #include "st_cb_flush.h"
51 #include "st_manager.h"
52 #include "st_sampler_view.h"
53 #include "st_util.h"
54
55 #include "pipe/p_context.h"
56 #include "pipe/p_screen.h"
57 #include "util/format/u_format.h"
58 #include "util/u_helpers.h"
59 #include "util/u_pointer.h"
60 #include "util/u_inlines.h"
61 #include "util/u_atomic.h"
62 #include "util/u_surface.h"
63 #include "util/list.h"
64 #include "util/u_memory.h"
65 #include "util/perf/cpu_trace.h"
66
67 struct hash_table;
68
69 struct st_screen
70 {
71 struct hash_table *drawable_ht; /* pipe_frontend_drawable objects hash table */
72 simple_mtx_t st_mutex;
73 };
74
75 /**
76 * Cast wrapper to convert a struct gl_framebuffer to an gl_framebuffer.
77 * Return NULL if the struct gl_framebuffer is a user-created framebuffer.
78 * We'll only return non-null for window system framebuffers.
79 * Note that this function may fail.
80 */
81 static inline struct gl_framebuffer *
st_ws_framebuffer(struct gl_framebuffer * fb)82 st_ws_framebuffer(struct gl_framebuffer *fb)
83 {
84 /* FBO cannot be casted. See st_new_framebuffer */
85 if (fb && _mesa_is_winsys_fbo(fb) &&
86 fb != _mesa_get_incomplete_framebuffer())
87 return fb;
88 return NULL;
89 }
90
91 /**
92 * Map an attachment to a buffer index.
93 */
94 static inline gl_buffer_index
attachment_to_buffer_index(enum st_attachment_type statt)95 attachment_to_buffer_index(enum st_attachment_type statt)
96 {
97 gl_buffer_index index;
98
99 switch (statt) {
100 case ST_ATTACHMENT_FRONT_LEFT:
101 index = BUFFER_FRONT_LEFT;
102 break;
103 case ST_ATTACHMENT_BACK_LEFT:
104 index = BUFFER_BACK_LEFT;
105 break;
106 case ST_ATTACHMENT_FRONT_RIGHT:
107 index = BUFFER_FRONT_RIGHT;
108 break;
109 case ST_ATTACHMENT_BACK_RIGHT:
110 index = BUFFER_BACK_RIGHT;
111 break;
112 case ST_ATTACHMENT_DEPTH_STENCIL:
113 index = BUFFER_DEPTH;
114 break;
115 case ST_ATTACHMENT_ACCUM:
116 index = BUFFER_ACCUM;
117 break;
118 default:
119 index = BUFFER_COUNT;
120 break;
121 }
122
123 return index;
124 }
125
126
127 /**
128 * Map a buffer index to an attachment.
129 */
130 static inline enum st_attachment_type
buffer_index_to_attachment(gl_buffer_index index)131 buffer_index_to_attachment(gl_buffer_index index)
132 {
133 enum st_attachment_type statt;
134
135 switch (index) {
136 case BUFFER_FRONT_LEFT:
137 statt = ST_ATTACHMENT_FRONT_LEFT;
138 break;
139 case BUFFER_BACK_LEFT:
140 statt = ST_ATTACHMENT_BACK_LEFT;
141 break;
142 case BUFFER_FRONT_RIGHT:
143 statt = ST_ATTACHMENT_FRONT_RIGHT;
144 break;
145 case BUFFER_BACK_RIGHT:
146 statt = ST_ATTACHMENT_BACK_RIGHT;
147 break;
148 case BUFFER_DEPTH:
149 statt = ST_ATTACHMENT_DEPTH_STENCIL;
150 break;
151 case BUFFER_ACCUM:
152 statt = ST_ATTACHMENT_ACCUM;
153 break;
154 default:
155 statt = ST_ATTACHMENT_INVALID;
156 break;
157 }
158
159 return statt;
160 }
161
162
163 /**
164 * Make sure a context picks up the latest cached state of the
165 * drawables it binds to.
166 */
167 static void
st_context_validate(struct st_context * st,struct gl_framebuffer * stdraw,struct gl_framebuffer * stread)168 st_context_validate(struct st_context *st,
169 struct gl_framebuffer *stdraw,
170 struct gl_framebuffer *stread)
171 {
172 if (stdraw && stdraw->stamp != st->draw_stamp) {
173 st->ctx->NewDriverState |= ST_NEW_FRAMEBUFFER;
174 _mesa_resize_framebuffer(st->ctx, stdraw,
175 stdraw->Width,
176 stdraw->Height);
177 st->draw_stamp = stdraw->stamp;
178 }
179
180 if (stread && stread->stamp != st->read_stamp) {
181 if (stread != stdraw) {
182 st->ctx->NewDriverState |= ST_NEW_FRAMEBUFFER;
183 _mesa_resize_framebuffer(st->ctx, stread,
184 stread->Width,
185 stread->Height);
186 }
187 st->read_stamp = stread->stamp;
188 }
189 }
190
191
192 void
st_set_ws_renderbuffer_surface(struct gl_renderbuffer * rb,struct pipe_surface * surf)193 st_set_ws_renderbuffer_surface(struct gl_renderbuffer *rb,
194 struct pipe_surface *surf)
195 {
196 pipe_surface_reference(&rb->surface_srgb, NULL);
197 pipe_surface_reference(&rb->surface_linear, NULL);
198
199 if (util_format_is_srgb(surf->format))
200 pipe_surface_reference(&rb->surface_srgb, surf);
201 else
202 pipe_surface_reference(&rb->surface_linear, surf);
203
204 rb->surface = surf; /* just assign, don't ref */
205 pipe_resource_reference(&rb->texture, surf->texture);
206
207 rb->Width = surf->width;
208 rb->Height = surf->height;
209 }
210
211
212 /**
213 * Validate a framebuffer to make sure up-to-date pipe_textures are used.
214 * The context is only used for creating pipe surfaces and for calling
215 * _mesa_resize_framebuffer().
216 * (That should probably be rethought, since those surfaces become
217 * drawable state, not context state, and can be freed by another pipe
218 * context).
219 */
220 static void
st_framebuffer_validate(struct gl_framebuffer * stfb,struct st_context * st)221 st_framebuffer_validate(struct gl_framebuffer *stfb,
222 struct st_context *st)
223 {
224 struct pipe_resource *textures[ST_ATTACHMENT_COUNT];
225 struct pipe_resource *resolve = NULL;
226 uint width, height;
227 unsigned i;
228 bool changed = false;
229 int32_t new_stamp;
230
231 new_stamp = p_atomic_read(&stfb->drawable->stamp);
232 if (stfb->drawable_stamp == new_stamp)
233 return;
234
235 memset(textures, 0, stfb->num_statts * sizeof(textures[0]));
236
237 /* validate the fb */
238 do {
239 if (!stfb->drawable->validate(st, stfb->drawable, stfb->statts,
240 stfb->num_statts, textures, &resolve))
241 return;
242
243 stfb->drawable_stamp = new_stamp;
244 new_stamp = p_atomic_read(&stfb->drawable->stamp);
245 } while(stfb->drawable_stamp != new_stamp);
246
247 width = stfb->Width;
248 height = stfb->Height;
249
250 for (i = 0; i < stfb->num_statts; i++) {
251 struct gl_renderbuffer *rb;
252 struct pipe_surface *ps, surf_tmpl;
253 gl_buffer_index idx;
254
255 if (!textures[i])
256 continue;
257
258 idx = attachment_to_buffer_index(stfb->statts[i]);
259 if (idx >= BUFFER_COUNT) {
260 pipe_resource_reference(&textures[i], NULL);
261 continue;
262 }
263
264 rb = stfb->Attachment[idx].Renderbuffer;
265 assert(rb);
266 if (rb->texture == textures[i] &&
267 rb->Width == textures[i]->width0 &&
268 rb->Height == textures[i]->height0) {
269 pipe_resource_reference(&textures[i], NULL);
270 continue;
271 }
272
273 u_surface_default_template(&surf_tmpl, textures[i]);
274 ps = st->pipe->create_surface(st->pipe, textures[i], &surf_tmpl);
275 if (ps) {
276 st_set_ws_renderbuffer_surface(rb, ps);
277 pipe_surface_reference(&ps, NULL);
278
279 changed = true;
280
281 width = rb->Width;
282 height = rb->Height;
283 }
284
285 pipe_resource_reference(&textures[i], NULL);
286 }
287
288 changed |= resolve != stfb->resolve;
289 /* ref is removed here */
290 pipe_resource_reference(&stfb->resolve, NULL);
291 /* ref is taken here */
292 stfb->resolve = resolve;
293
294 if (changed) {
295 ++stfb->stamp;
296 _mesa_resize_framebuffer(st->ctx, stfb, width, height);
297 }
298 }
299
300 /**
301 * Return true if the visual has the specified buffers.
302 */
303 static inline bool
st_visual_have_buffers(const struct st_visual * visual,unsigned mask)304 st_visual_have_buffers(const struct st_visual *visual, unsigned mask)
305 {
306 return ((visual->buffer_mask & mask) == mask);
307 }
308
309 /**
310 * Update the attachments to validate by looping the existing renderbuffers.
311 */
312 static void
st_framebuffer_update_attachments(struct gl_framebuffer * stfb)313 st_framebuffer_update_attachments(struct gl_framebuffer *stfb)
314 {
315 gl_buffer_index idx;
316
317 stfb->num_statts = 0;
318
319 for (enum st_attachment_type i = 0; i < ST_ATTACHMENT_COUNT; i++)
320 stfb->statts[i] = ST_ATTACHMENT_INVALID;
321
322 for (idx = 0; idx < BUFFER_COUNT; idx++) {
323 struct gl_renderbuffer *rb;
324 enum st_attachment_type statt;
325
326 rb = stfb->Attachment[idx].Renderbuffer;
327 if (!rb || rb->software)
328 continue;
329
330 statt = buffer_index_to_attachment(idx);
331 if (statt != ST_ATTACHMENT_INVALID &&
332 st_visual_have_buffers(stfb->drawable->visual, 1 << statt))
333 stfb->statts[stfb->num_statts++] = statt;
334 }
335 stfb->stamp++;
336 }
337
338 /**
339 * Allocate a renderbuffer for an on-screen window (not a user-created
340 * renderbuffer). The window system code determines the format.
341 */
342 static struct gl_renderbuffer *
st_new_renderbuffer_fb(enum pipe_format format,unsigned samples,bool sw)343 st_new_renderbuffer_fb(enum pipe_format format, unsigned samples, bool sw)
344 {
345 struct gl_renderbuffer *rb;
346
347 rb = CALLOC_STRUCT(gl_renderbuffer);
348 if (!rb) {
349 _mesa_error(NULL, GL_OUT_OF_MEMORY, "creating renderbuffer");
350 return NULL;
351 }
352
353 _mesa_init_renderbuffer(rb, 0);
354 rb->NumSamples = samples;
355 rb->NumStorageSamples = samples;
356 rb->Format = st_pipe_format_to_mesa_format(format);
357 rb->_BaseFormat = _mesa_get_format_base_format(rb->Format);
358 rb->software = sw;
359
360 switch (format) {
361 case PIPE_FORMAT_B10G10R10A2_UNORM:
362 case PIPE_FORMAT_R10G10B10A2_UNORM:
363 rb->InternalFormat = GL_RGB10_A2;
364 break;
365 case PIPE_FORMAT_R10G10B10X2_UNORM:
366 case PIPE_FORMAT_B10G10R10X2_UNORM:
367 rb->InternalFormat = GL_RGB10;
368 break;
369 case PIPE_FORMAT_R8G8B8A8_UNORM:
370 case PIPE_FORMAT_B8G8R8A8_UNORM:
371 case PIPE_FORMAT_A8R8G8B8_UNORM:
372 rb->InternalFormat = GL_RGBA8;
373 break;
374 case PIPE_FORMAT_R8G8B8X8_UNORM:
375 case PIPE_FORMAT_B8G8R8X8_UNORM:
376 case PIPE_FORMAT_X8R8G8B8_UNORM:
377 case PIPE_FORMAT_R8G8B8_UNORM:
378 rb->InternalFormat = GL_RGB8;
379 break;
380 case PIPE_FORMAT_R8G8B8A8_SRGB:
381 case PIPE_FORMAT_B8G8R8A8_SRGB:
382 case PIPE_FORMAT_A8R8G8B8_SRGB:
383 rb->InternalFormat = GL_SRGB8_ALPHA8;
384 break;
385 case PIPE_FORMAT_R8G8B8X8_SRGB:
386 case PIPE_FORMAT_B8G8R8X8_SRGB:
387 case PIPE_FORMAT_X8R8G8B8_SRGB:
388 rb->InternalFormat = GL_SRGB8;
389 break;
390 case PIPE_FORMAT_B5G5R5A1_UNORM:
391 rb->InternalFormat = GL_RGB5_A1;
392 break;
393 case PIPE_FORMAT_B4G4R4A4_UNORM:
394 rb->InternalFormat = GL_RGBA4;
395 break;
396 case PIPE_FORMAT_B5G6R5_UNORM:
397 rb->InternalFormat = GL_RGB565;
398 break;
399 case PIPE_FORMAT_Z16_UNORM:
400 rb->InternalFormat = GL_DEPTH_COMPONENT16;
401 break;
402 case PIPE_FORMAT_Z32_UNORM:
403 rb->InternalFormat = GL_DEPTH_COMPONENT32;
404 break;
405 case PIPE_FORMAT_Z24_UNORM_S8_UINT:
406 case PIPE_FORMAT_S8_UINT_Z24_UNORM:
407 rb->InternalFormat = GL_DEPTH24_STENCIL8_EXT;
408 break;
409 case PIPE_FORMAT_Z24X8_UNORM:
410 case PIPE_FORMAT_X8Z24_UNORM:
411 rb->InternalFormat = GL_DEPTH_COMPONENT24;
412 break;
413 case PIPE_FORMAT_S8_UINT:
414 rb->InternalFormat = GL_STENCIL_INDEX8_EXT;
415 break;
416 case PIPE_FORMAT_R16G16B16A16_SNORM:
417 /* accum buffer */
418 rb->InternalFormat = GL_RGBA16_SNORM;
419 break;
420 case PIPE_FORMAT_R16G16B16A16_UNORM:
421 rb->InternalFormat = GL_RGBA16;
422 break;
423 case PIPE_FORMAT_R16G16B16_UNORM:
424 rb->InternalFormat = GL_RGB16;
425 break;
426 case PIPE_FORMAT_R8_UNORM:
427 rb->InternalFormat = GL_R8;
428 break;
429 case PIPE_FORMAT_R8G8_UNORM:
430 rb->InternalFormat = GL_RG8;
431 break;
432 case PIPE_FORMAT_R16_UNORM:
433 rb->InternalFormat = GL_R16;
434 break;
435 case PIPE_FORMAT_R16G16_UNORM:
436 rb->InternalFormat = GL_RG16;
437 break;
438 case PIPE_FORMAT_R32G32B32A32_FLOAT:
439 rb->InternalFormat = GL_RGBA32F;
440 break;
441 case PIPE_FORMAT_R32G32B32X32_FLOAT:
442 case PIPE_FORMAT_R32G32B32_FLOAT:
443 rb->InternalFormat = GL_RGB32F;
444 break;
445 case PIPE_FORMAT_R16G16B16A16_FLOAT:
446 rb->InternalFormat = GL_RGBA16F;
447 break;
448 case PIPE_FORMAT_R16G16B16X16_FLOAT:
449 rb->InternalFormat = GL_RGB16F;
450 break;
451 default:
452 _mesa_problem(NULL,
453 "Unexpected format %s in st_new_renderbuffer_fb",
454 util_format_name(format));
455 FREE(rb);
456 return NULL;
457 }
458
459 rb->surface = NULL;
460
461 return rb;
462 }
463
464 /**
465 * Add a renderbuffer to the framebuffer. The framebuffer is one that
466 * corresponds to a window and is not a user-created FBO.
467 */
468 static bool
st_framebuffer_add_renderbuffer(struct gl_framebuffer * stfb,gl_buffer_index idx,bool prefer_srgb)469 st_framebuffer_add_renderbuffer(struct gl_framebuffer *stfb,
470 gl_buffer_index idx, bool prefer_srgb)
471 {
472 struct gl_renderbuffer *rb;
473 enum pipe_format format;
474 bool sw;
475
476 assert(_mesa_is_winsys_fbo(stfb));
477
478 /* do not distinguish depth/stencil buffers */
479 if (idx == BUFFER_STENCIL)
480 idx = BUFFER_DEPTH;
481
482 switch (idx) {
483 case BUFFER_DEPTH:
484 format = stfb->drawable->visual->depth_stencil_format;
485 sw = false;
486 break;
487 case BUFFER_ACCUM:
488 format = stfb->drawable->visual->accum_format;
489 sw = true;
490 break;
491 default:
492 format = stfb->drawable->visual->color_format;
493 if (prefer_srgb)
494 format = util_format_srgb(format);
495 sw = false;
496 break;
497 }
498
499 if (format == PIPE_FORMAT_NONE)
500 return false;
501
502 rb = st_new_renderbuffer_fb(format, stfb->drawable->visual->samples, sw);
503 if (!rb)
504 return false;
505
506 if (idx != BUFFER_DEPTH) {
507 _mesa_attach_and_own_rb(stfb, idx, rb);
508 return true;
509 }
510
511 bool rb_ownership_taken = false;
512 if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0)) {
513 _mesa_attach_and_own_rb(stfb, BUFFER_DEPTH, rb);
514 rb_ownership_taken = true;
515 }
516
517 if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)) {
518 if (rb_ownership_taken)
519 _mesa_attach_and_reference_rb(stfb, BUFFER_STENCIL, rb);
520 else
521 _mesa_attach_and_own_rb(stfb, BUFFER_STENCIL, rb);
522 }
523
524 return true;
525 }
526
527
528 /**
529 * Intialize a struct gl_config from a visual.
530 */
531 static void
st_visual_to_context_mode(const struct st_visual * visual,struct gl_config * mode)532 st_visual_to_context_mode(const struct st_visual *visual,
533 struct gl_config *mode)
534 {
535 memset(mode, 0, sizeof(*mode));
536
537 if (st_visual_have_buffers(visual, ST_ATTACHMENT_BACK_LEFT_MASK))
538 mode->doubleBufferMode = GL_TRUE;
539
540 if (st_visual_have_buffers(visual,
541 ST_ATTACHMENT_FRONT_RIGHT_MASK | ST_ATTACHMENT_BACK_RIGHT_MASK))
542 mode->stereoMode = GL_TRUE;
543
544 if (visual->color_format != PIPE_FORMAT_NONE) {
545 mode->redBits =
546 util_format_get_component_bits(visual->color_format,
547 UTIL_FORMAT_COLORSPACE_RGB, 0);
548 mode->greenBits =
549 util_format_get_component_bits(visual->color_format,
550 UTIL_FORMAT_COLORSPACE_RGB, 1);
551 mode->blueBits =
552 util_format_get_component_bits(visual->color_format,
553 UTIL_FORMAT_COLORSPACE_RGB, 2);
554 mode->alphaBits =
555 util_format_get_component_bits(visual->color_format,
556 UTIL_FORMAT_COLORSPACE_RGB, 3);
557
558 mode->rgbBits = mode->redBits +
559 mode->greenBits + mode->blueBits + mode->alphaBits;
560 mode->sRGBCapable = util_format_is_srgb(visual->color_format);
561 mode->floatMode = util_format_is_float(visual->color_format);
562 }
563
564 if (visual->depth_stencil_format != PIPE_FORMAT_NONE) {
565 mode->depthBits =
566 util_format_get_component_bits(visual->depth_stencil_format,
567 UTIL_FORMAT_COLORSPACE_ZS, 0);
568 mode->stencilBits =
569 util_format_get_component_bits(visual->depth_stencil_format,
570 UTIL_FORMAT_COLORSPACE_ZS, 1);
571 }
572
573 if (visual->accum_format != PIPE_FORMAT_NONE) {
574 mode->accumRedBits =
575 util_format_get_component_bits(visual->accum_format,
576 UTIL_FORMAT_COLORSPACE_RGB, 0);
577 mode->accumGreenBits =
578 util_format_get_component_bits(visual->accum_format,
579 UTIL_FORMAT_COLORSPACE_RGB, 1);
580 mode->accumBlueBits =
581 util_format_get_component_bits(visual->accum_format,
582 UTIL_FORMAT_COLORSPACE_RGB, 2);
583 mode->accumAlphaBits =
584 util_format_get_component_bits(visual->accum_format,
585 UTIL_FORMAT_COLORSPACE_RGB, 3);
586 }
587
588 if (visual->samples > 1) {
589 mode->samples = visual->samples;
590 }
591 }
592
593
594 /**
595 * Create a framebuffer from a manager interface.
596 */
597 static struct gl_framebuffer *
st_framebuffer_create(struct st_context * st,struct pipe_frontend_drawable * drawable)598 st_framebuffer_create(struct st_context *st,
599 struct pipe_frontend_drawable *drawable)
600 {
601 struct gl_framebuffer *stfb;
602 struct gl_config mode;
603 gl_buffer_index idx;
604 bool prefer_srgb = false;
605
606 if (!drawable)
607 return NULL;
608
609 stfb = CALLOC_STRUCT(gl_framebuffer);
610 if (!stfb)
611 return NULL;
612
613 st_visual_to_context_mode(drawable->visual, &mode);
614
615 /*
616 * For desktop GL, sRGB framebuffer write is controlled by both the
617 * capability of the framebuffer and GL_FRAMEBUFFER_SRGB. We should
618 * advertise the capability when the pipe driver (and core Mesa) supports
619 * it so that applications can enable sRGB write when they want to.
620 *
621 * This is not to be confused with GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB. When
622 * the attribute is GLX_TRUE, it tells the st manager to pick a color
623 * format such that util_format_srgb(visual->color_format) can be supported
624 * by the pipe driver. We still need to advertise the capability here.
625 *
626 * For GLES, however, sRGB framebuffer write is initially only controlled
627 * by the capability of the framebuffer, with GL_EXT_sRGB_write_control
628 * control is given back to the applications, but GL_FRAMEBUFFER_SRGB is
629 * still enabled by default since this is the behaviour when
630 * EXT_sRGB_write_control is not available. Since GL_EXT_sRGB_write_control
631 * brings GLES on par with desktop GLs EXT_framebuffer_sRGB, in mesa this
632 * is also expressed by using the same extension flag
633 */
634 if (_mesa_has_EXT_framebuffer_sRGB(st->ctx)) {
635 struct pipe_screen *screen = st->screen;
636 const enum pipe_format srgb_format =
637 util_format_srgb(drawable->visual->color_format);
638
639 if (srgb_format != PIPE_FORMAT_NONE &&
640 st_pipe_format_to_mesa_format(srgb_format) != MESA_FORMAT_NONE &&
641 screen->is_format_supported(screen, srgb_format,
642 PIPE_TEXTURE_2D, drawable->visual->samples,
643 drawable->visual->samples,
644 (PIPE_BIND_DISPLAY_TARGET |
645 PIPE_BIND_RENDER_TARGET))) {
646 mode.sRGBCapable = GL_TRUE;
647 /* Since GL_FRAMEBUFFER_SRGB is enabled by default on GLES we must not
648 * create renderbuffers with an sRGB format derived from the
649 * visual->color_format, but we still want sRGB for desktop GL.
650 */
651 prefer_srgb = _mesa_is_desktop_gl(st->ctx);
652 }
653 }
654
655 _mesa_initialize_window_framebuffer(stfb, &mode);
656
657 stfb->drawable = drawable;
658 stfb->drawable_ID = drawable->ID;
659 stfb->drawable_stamp = p_atomic_read(&drawable->stamp) - 1;
660
661 /* add the color buffer */
662 idx = stfb->_ColorDrawBufferIndexes[0];
663 if (!st_framebuffer_add_renderbuffer(stfb, idx, prefer_srgb)) {
664 FREE(stfb);
665 return NULL;
666 }
667
668 st_framebuffer_add_renderbuffer(stfb, BUFFER_DEPTH, false);
669 st_framebuffer_add_renderbuffer(stfb, BUFFER_ACCUM, false);
670
671 stfb->stamp = 0;
672 st_framebuffer_update_attachments(stfb);
673
674 return stfb;
675 }
676
677
678 static uint32_t
drawable_hash(const void * key)679 drawable_hash(const void *key)
680 {
681 return (uintptr_t)key;
682 }
683
684
685 static bool
drawable_equal(const void * a,const void * b)686 drawable_equal(const void *a, const void *b)
687 {
688 return (struct pipe_frontend_drawable *)a == (struct pipe_frontend_drawable *)b;
689 }
690
691
692 static bool
drawable_lookup(struct pipe_frontend_screen * fscreen,const struct pipe_frontend_drawable * drawable)693 drawable_lookup(struct pipe_frontend_screen *fscreen,
694 const struct pipe_frontend_drawable *drawable)
695 {
696 struct st_screen *screen =
697 (struct st_screen *)fscreen->st_screen;
698 struct hash_entry *entry;
699
700 assert(screen);
701 assert(screen->drawable_ht);
702
703 simple_mtx_lock(&screen->st_mutex);
704 entry = _mesa_hash_table_search(screen->drawable_ht, drawable);
705 simple_mtx_unlock(&screen->st_mutex);
706
707 return entry != NULL;
708 }
709
710
711 static bool
drawable_insert(struct pipe_frontend_screen * fscreen,struct pipe_frontend_drawable * drawable)712 drawable_insert(struct pipe_frontend_screen *fscreen,
713 struct pipe_frontend_drawable *drawable)
714 {
715 struct st_screen *screen =
716 (struct st_screen *)fscreen->st_screen;
717 struct hash_entry *entry;
718
719 assert(screen);
720 assert(screen->drawable_ht);
721
722 simple_mtx_lock(&screen->st_mutex);
723 entry = _mesa_hash_table_insert(screen->drawable_ht, drawable, drawable);
724 simple_mtx_unlock(&screen->st_mutex);
725
726 return entry != NULL;
727 }
728
729
730 static void
drawable_remove(struct pipe_frontend_screen * fscreen,struct pipe_frontend_drawable * drawable)731 drawable_remove(struct pipe_frontend_screen *fscreen,
732 struct pipe_frontend_drawable *drawable)
733 {
734 struct st_screen *screen =
735 (struct st_screen *)fscreen->st_screen;
736 struct hash_entry *entry;
737
738 if (!screen || !screen->drawable_ht)
739 return;
740
741 simple_mtx_lock(&screen->st_mutex);
742 entry = _mesa_hash_table_search(screen->drawable_ht, drawable);
743 if (!entry)
744 goto unlock;
745
746 _mesa_hash_table_remove(screen->drawable_ht, entry);
747
748 unlock:
749 simple_mtx_unlock(&screen->st_mutex);
750 }
751
752
753 /**
754 * The framebuffer interface object is no longer valid.
755 * Remove the object from the framebuffer interface hash table.
756 */
757 void
st_api_destroy_drawable(struct pipe_frontend_drawable * drawable)758 st_api_destroy_drawable(struct pipe_frontend_drawable *drawable)
759 {
760 if (!drawable)
761 return;
762
763 drawable_remove(drawable->fscreen, drawable);
764 }
765
766
767 /**
768 * Purge the winsys buffers list to remove any references to
769 * non-existing framebuffer interface objects.
770 */
771 static void
st_framebuffers_purge(struct st_context * st)772 st_framebuffers_purge(struct st_context *st)
773 {
774 struct pipe_frontend_screen *fscreen = st->frontend_screen;
775 struct gl_framebuffer *stfb, *next;
776
777 assert(fscreen);
778
779 LIST_FOR_EACH_ENTRY_SAFE_REV(stfb, next, &st->winsys_buffers, head) {
780 struct pipe_frontend_drawable *drawable = stfb->drawable;
781
782 assert(drawable);
783
784 /**
785 * If the corresponding framebuffer interface object no longer exists,
786 * remove the framebuffer object from the context's winsys buffers list,
787 * and unreference the framebuffer object, so its resources can be
788 * deleted.
789 */
790 if (!drawable_lookup(fscreen, drawable)) {
791 list_del(&stfb->head);
792 _mesa_reference_framebuffer(&stfb, NULL);
793 }
794 }
795 }
796
797
798 void
st_context_flush(struct st_context * st,unsigned flags,struct pipe_fence_handle ** fence,void (* before_flush_cb)(void *),void * args)799 st_context_flush(struct st_context *st, unsigned flags,
800 struct pipe_fence_handle **fence,
801 void (*before_flush_cb) (void*), void* args)
802 {
803 unsigned pipe_flags = 0;
804
805 MESA_TRACE_FUNC();
806
807 if (flags & ST_FLUSH_END_OF_FRAME)
808 pipe_flags |= PIPE_FLUSH_END_OF_FRAME;
809 if (flags & ST_FLUSH_FENCE_FD)
810 pipe_flags |= PIPE_FLUSH_FENCE_FD;
811
812 /* We can do these in any order because FLUSH_VERTICES will also flush
813 * the bitmap cache if there are any unflushed vertices.
814 */
815 st_flush_bitmap_cache(st);
816 FLUSH_VERTICES(st->ctx, 0, 0);
817
818 /* Notify the caller that we're ready to flush */
819 if (before_flush_cb)
820 before_flush_cb(args);
821 st_flush(st, fence, pipe_flags);
822
823 if ((flags & ST_FLUSH_WAIT) && fence && *fence) {
824 st->screen->fence_finish(st->screen, NULL, *fence,
825 OS_TIMEOUT_INFINITE);
826 st->screen->fence_reference(st->screen, fence, NULL);
827 }
828
829 if (flags & ST_FLUSH_FRONT)
830 st_manager_flush_frontbuffer(st);
831 }
832
833 /**
834 * Replace the texture image of a texture object at the specified level.
835 *
836 * This is only for GLX_EXT_texture_from_pixmap and equivalent features
837 * in EGL and WGL.
838 */
839 bool
st_context_teximage(struct st_context * st,GLenum target,int level,enum pipe_format pipe_format,struct pipe_resource * tex,bool mipmap)840 st_context_teximage(struct st_context *st, GLenum target,
841 int level, enum pipe_format pipe_format,
842 struct pipe_resource *tex, bool mipmap)
843 {
844 struct gl_context *ctx = st->ctx;
845 struct gl_texture_object *texObj;
846 struct gl_texture_image *texImage;
847 GLenum internalFormat;
848 GLuint width, height, depth;
849
850 texObj = _mesa_get_current_tex_object(ctx, target);
851
852 _mesa_lock_texture(ctx, texObj);
853
854 /* switch to surface based */
855 if (!texObj->surface_based) {
856 _mesa_clear_texture_object(ctx, texObj, NULL);
857 texObj->surface_based = GL_TRUE;
858 }
859
860 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
861 if (tex) {
862 mesa_format texFormat = st_pipe_format_to_mesa_format(pipe_format);
863
864 if (util_format_has_alpha(tex->format))
865 internalFormat = GL_RGBA;
866 else
867 internalFormat = GL_RGB;
868
869 _mesa_init_teximage_fields(ctx, texImage,
870 tex->width0, tex->height0, 1, 0,
871 internalFormat, texFormat);
872
873 width = tex->width0;
874 height = tex->height0;
875 depth = tex->depth0;
876
877 /* grow the image size until we hit level = 0 */
878 while (level > 0) {
879 if (width != 1)
880 width <<= 1;
881 if (height != 1)
882 height <<= 1;
883 if (depth != 1)
884 depth <<= 1;
885 level--;
886 }
887 }
888 else {
889 _mesa_clear_texture_image(ctx, texImage);
890 width = height = depth = 0;
891 }
892 _mesa_update_texture_object_swizzle(ctx, texObj);
893
894 pipe_resource_reference(&texObj->pt, tex);
895 st_texture_release_all_sampler_views(st, texObj);
896 pipe_resource_reference(&texImage->pt, tex);
897 texObj->surface_format = pipe_format;
898
899 texObj->needs_validation = true;
900
901 _mesa_dirty_texobj(ctx, texObj);
902 ctx->Shared->HasExternallySharedImages = true;
903 _mesa_unlock_texture(ctx, texObj);
904
905 return true;
906 }
907
908
909 /**
910 * Invalidate states to notify the frontend that driver states have been
911 * changed behind its back.
912 */
913 void
st_context_invalidate_state(struct st_context * st,unsigned flags)914 st_context_invalidate_state(struct st_context *st, unsigned flags)
915 {
916 struct gl_context *ctx = st->ctx;
917
918 if (flags & ST_INVALIDATE_FS_SAMPLER_VIEWS)
919 ctx->NewDriverState |= ST_NEW_FS_SAMPLER_VIEWS;
920 if (flags & ST_INVALIDATE_FS_CONSTBUF0)
921 ctx->NewDriverState |= ST_NEW_FS_CONSTANTS;
922 if (flags & ST_INVALIDATE_VS_CONSTBUF0)
923 ctx->NewDriverState |= ST_NEW_VS_CONSTANTS;
924 if (flags & ST_INVALIDATE_VERTEX_BUFFERS) {
925 ctx->Array.NewVertexElements = true;
926 ctx->NewDriverState |= ST_NEW_VERTEX_ARRAYS;
927 }
928 if (flags & ST_INVALIDATE_FB_STATE)
929 ctx->NewDriverState |= ST_NEW_FB_STATE;
930 }
931
932
933 void
st_screen_destroy(struct pipe_frontend_screen * fscreen)934 st_screen_destroy(struct pipe_frontend_screen *fscreen)
935 {
936 struct st_screen *screen = fscreen->st_screen;
937
938 if (screen && screen->drawable_ht) {
939 _mesa_hash_table_destroy(screen->drawable_ht, NULL);
940 simple_mtx_destroy(&screen->st_mutex);
941 FREE(screen);
942 fscreen->st_screen = NULL;
943 }
944 }
945
946
947 /**
948 * Create a rendering context.
949 */
950 struct st_context *
st_api_create_context(struct pipe_frontend_screen * fscreen,const struct st_context_attribs * attribs,enum st_context_error * error,struct st_context * shared_ctx)951 st_api_create_context(struct pipe_frontend_screen *fscreen,
952 const struct st_context_attribs *attribs,
953 enum st_context_error *error,
954 struct st_context *shared_ctx)
955 {
956 struct st_context *st;
957 struct pipe_context *pipe;
958 struct gl_config mode, *mode_ptr = &mode;
959 bool no_error = false;
960
961 _mesa_initialize(attribs->options.mesa_extension_override);
962
963 /* Create a hash table for the framebuffer interface objects
964 * if it has not been created for this st manager.
965 */
966 if (fscreen->st_screen == NULL) {
967 struct st_screen *screen;
968
969 screen = CALLOC_STRUCT(st_screen);
970 simple_mtx_init(&screen->st_mutex, mtx_plain);
971 screen->drawable_ht = _mesa_hash_table_create(NULL,
972 drawable_hash,
973 drawable_equal);
974 fscreen->st_screen = screen;
975 }
976
977 if (attribs->flags & ST_CONTEXT_FLAG_NO_ERROR)
978 no_error = true;
979
980 /* OpenGL ES 2.0+ does not support sampler state LOD bias. If we are creating
981 * a GLES context, communicate that to the the driver to allow optimization.
982 */
983 bool is_gles = attribs->profile == API_OPENGLES2;
984 unsigned lod_bias_flag = is_gles ? PIPE_CONTEXT_NO_LOD_BIAS : 0;
985
986 pipe = fscreen->screen->context_create(fscreen->screen, NULL,
987 PIPE_CONTEXT_PREFER_THREADED |
988 lod_bias_flag |
989 attribs->context_flags);
990 if (!pipe) {
991 *error = ST_CONTEXT_ERROR_NO_MEMORY;
992 return NULL;
993 }
994
995 st_visual_to_context_mode(&attribs->visual, &mode);
996 if (attribs->visual.color_format == PIPE_FORMAT_NONE)
997 mode_ptr = NULL;
998 st = st_create_context(attribs->profile, pipe, mode_ptr, shared_ctx,
999 &attribs->options, no_error,
1000 !!fscreen->validate_egl_image);
1001 if (!st) {
1002 *error = ST_CONTEXT_ERROR_NO_MEMORY;
1003 pipe->destroy(pipe);
1004 return NULL;
1005 }
1006
1007 if (attribs->flags & ST_CONTEXT_FLAG_DEBUG) {
1008 if (!_mesa_set_debug_state_int(st->ctx, GL_DEBUG_OUTPUT, GL_TRUE)) {
1009 *error = ST_CONTEXT_ERROR_NO_MEMORY;
1010 return NULL;
1011 }
1012
1013 st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_DEBUG_BIT;
1014 }
1015
1016 if (st->ctx->Const.ContextFlags & GL_CONTEXT_FLAG_DEBUG_BIT) {
1017 _mesa_update_debug_callback(st->ctx);
1018 }
1019
1020 if (attribs->flags & ST_CONTEXT_FLAG_FORWARD_COMPATIBLE)
1021 st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;
1022
1023 if (attribs->context_flags & PIPE_CONTEXT_ROBUST_BUFFER_ACCESS) {
1024 st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT_ARB;
1025 st->ctx->Const.RobustAccess = GL_TRUE;
1026 }
1027
1028 if (attribs->context_flags & PIPE_CONTEXT_LOSE_CONTEXT_ON_RESET) {
1029 st->ctx->Const.ResetStrategy = GL_LOSE_CONTEXT_ON_RESET_ARB;
1030 st_install_device_reset_callback(st);
1031 }
1032
1033 if (attribs->flags & ST_CONTEXT_FLAG_RELEASE_NONE)
1034 st->ctx->Const.ContextReleaseBehavior = GL_NONE;
1035
1036 /* need to perform version check */
1037 if (attribs->major > 1 || attribs->minor > 0) {
1038 /* Is the actual version less than the requested version?
1039 */
1040 if (st->ctx->Version < attribs->major * 10U + attribs->minor) {
1041 *error = ST_CONTEXT_ERROR_BAD_VERSION;
1042 st_destroy_context(st);
1043 return NULL;
1044 }
1045 }
1046
1047 st->can_scissor_clear = !!st->screen->get_param(st->screen, PIPE_CAP_CLEAR_SCISSORED);
1048
1049 st->ctx->invalidate_on_gl_viewport =
1050 fscreen->get_param(fscreen, ST_MANAGER_BROKEN_INVALIDATE);
1051
1052 st->frontend_screen = fscreen;
1053
1054 if (st->ctx->IntelBlackholeRender &&
1055 st->screen->get_param(st->screen, PIPE_CAP_FRONTEND_NOOP))
1056 st->pipe->set_frontend_noop(st->pipe, st->ctx->IntelBlackholeRender);
1057
1058 *error = ST_CONTEXT_SUCCESS;
1059 return st;
1060 }
1061
1062
1063 /**
1064 * Get the currently bound context in the calling thread.
1065 */
1066 struct st_context *
st_api_get_current(void)1067 st_api_get_current(void)
1068 {
1069 GET_CURRENT_CONTEXT(ctx);
1070
1071 return ctx ? ctx->st : NULL;
1072 }
1073
1074
1075 static struct gl_framebuffer *
st_framebuffer_reuse_or_create(struct st_context * st,struct pipe_frontend_drawable * drawable)1076 st_framebuffer_reuse_or_create(struct st_context *st,
1077 struct pipe_frontend_drawable *drawable)
1078 {
1079 struct gl_framebuffer *cur = NULL, *stfb = NULL;
1080
1081 if (!drawable)
1082 return NULL;
1083
1084 /* Check if there is already a framebuffer object for the specified
1085 * framebuffer interface in this context. If there is one, use it.
1086 */
1087 LIST_FOR_EACH_ENTRY(cur, &st->winsys_buffers, head) {
1088 if (cur->drawable_ID == drawable->ID) {
1089 _mesa_reference_framebuffer(&stfb, cur);
1090 break;
1091 }
1092 }
1093
1094 /* If there is not already a framebuffer object, create one */
1095 if (stfb == NULL) {
1096 cur = st_framebuffer_create(st, drawable);
1097
1098 if (cur) {
1099 /* add the referenced framebuffer interface object to
1100 * the framebuffer interface object hash table.
1101 */
1102 if (!drawable_insert(drawable->fscreen, drawable)) {
1103 _mesa_reference_framebuffer(&cur, NULL);
1104 return NULL;
1105 }
1106
1107 /* add to the context's winsys buffers list */
1108 list_add(&cur->head, &st->winsys_buffers);
1109
1110 _mesa_reference_framebuffer(&stfb, cur);
1111 }
1112 }
1113
1114 return stfb;
1115 }
1116
1117
1118 /**
1119 * Bind the context to the calling thread with draw and read as drawables.
1120 *
1121 * The framebuffers might be NULL, meaning the context is surfaceless.
1122 */
1123 bool
st_api_make_current(struct st_context * st,struct pipe_frontend_drawable * stdrawi,struct pipe_frontend_drawable * streadi)1124 st_api_make_current(struct st_context *st,
1125 struct pipe_frontend_drawable *stdrawi,
1126 struct pipe_frontend_drawable *streadi)
1127 {
1128 struct gl_framebuffer *stdraw, *stread;
1129 bool ret;
1130
1131 if (st) {
1132 /* reuse or create the draw fb */
1133 stdraw = st_framebuffer_reuse_or_create(st, stdrawi);
1134 if (streadi != stdrawi) {
1135 /* do the same for the read fb */
1136 stread = st_framebuffer_reuse_or_create(st, streadi);
1137 }
1138 else {
1139 stread = NULL;
1140 /* reuse the draw fb for the read fb */
1141 if (stdraw)
1142 _mesa_reference_framebuffer(&stread, stdraw);
1143 }
1144
1145 /* If framebuffers were asked for, we'd better have allocated them */
1146 if ((stdrawi && !stdraw) || (streadi && !stread))
1147 return false;
1148
1149 if (stdraw && stread) {
1150 st_framebuffer_validate(stdraw, st);
1151 if (stread != stdraw)
1152 st_framebuffer_validate(stread, st);
1153
1154 ret = _mesa_make_current(st->ctx, stdraw, stread);
1155
1156 st->draw_stamp = stdraw->stamp - 1;
1157 st->read_stamp = stread->stamp - 1;
1158 st_context_validate(st, stdraw, stread);
1159 }
1160 else {
1161 struct gl_framebuffer *incomplete = _mesa_get_incomplete_framebuffer();
1162 ret = _mesa_make_current(st->ctx, incomplete, incomplete);
1163 }
1164
1165 _mesa_reference_framebuffer(&stdraw, NULL);
1166 _mesa_reference_framebuffer(&stread, NULL);
1167
1168 /* Purge the context's winsys_buffers list in case any
1169 * of the referenced drawables no longer exist.
1170 */
1171 st_framebuffers_purge(st);
1172 }
1173 else {
1174 GET_CURRENT_CONTEXT(ctx);
1175
1176 if (ctx) {
1177 /* Before releasing the context, release its associated
1178 * winsys buffers first. Then purge the context's winsys buffers list
1179 * to free the resources of any winsys buffers that no longer have
1180 * an existing drawable.
1181 */
1182 ret = _mesa_make_current(ctx, NULL, NULL);
1183 st_framebuffers_purge(ctx->st);
1184 }
1185
1186 ret = _mesa_make_current(NULL, NULL, NULL);
1187 }
1188
1189 return ret;
1190 }
1191
1192
1193 /**
1194 * Flush the front buffer if the current context renders to the front buffer.
1195 */
1196 void
st_manager_flush_frontbuffer(struct st_context * st)1197 st_manager_flush_frontbuffer(struct st_context *st)
1198 {
1199 struct gl_framebuffer *stfb = st_ws_framebuffer(st->ctx->DrawBuffer);
1200 struct gl_renderbuffer *rb = NULL;
1201
1202 if (!stfb)
1203 return;
1204
1205 /* If the context uses a doublebuffered visual, but the buffer is
1206 * single-buffered, guess that it's a pbuffer, which doesn't need
1207 * flushing.
1208 */
1209 if (st->ctx->Visual.doubleBufferMode &&
1210 !stfb->Visual.doubleBufferMode)
1211 return;
1212
1213 /* Check front buffer used at the GL API level. */
1214 enum st_attachment_type statt = ST_ATTACHMENT_FRONT_LEFT;
1215 rb = stfb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer;
1216 if (!rb) {
1217 /* Check back buffer redirected by EGL_KHR_mutable_render_buffer. */
1218 statt = ST_ATTACHMENT_BACK_LEFT;
1219 rb = stfb->Attachment[BUFFER_BACK_LEFT].Renderbuffer;
1220 }
1221
1222 /* Do we have a front color buffer and has it been drawn to since last
1223 * frontbuffer flush?
1224 */
1225 if (rb && rb->defined &&
1226 stfb->drawable->flush_front(st, stfb->drawable, statt)) {
1227 rb->defined = GL_FALSE;
1228
1229 /* Trigger an update of rb->defined on next draw */
1230 st->ctx->NewDriverState |= ST_NEW_FB_STATE;
1231 }
1232 }
1233
1234
1235 /**
1236 * Re-validate the framebuffers.
1237 */
1238 void
st_manager_validate_framebuffers(struct st_context * st)1239 st_manager_validate_framebuffers(struct st_context *st)
1240 {
1241 struct gl_framebuffer *stdraw = st_ws_framebuffer(st->ctx->DrawBuffer);
1242 struct gl_framebuffer *stread = st_ws_framebuffer(st->ctx->ReadBuffer);
1243
1244 if (stdraw)
1245 st_framebuffer_validate(stdraw, st);
1246 if (stread && stread != stdraw)
1247 st_framebuffer_validate(stread, st);
1248
1249 st_context_validate(st, stdraw, stread);
1250 }
1251
1252
1253 /**
1254 * Flush any outstanding swapbuffers on the current draw framebuffer.
1255 */
1256 void
st_manager_flush_swapbuffers(void)1257 st_manager_flush_swapbuffers(void)
1258 {
1259 GET_CURRENT_CONTEXT(ctx);
1260 struct st_context *st = (ctx) ? ctx->st : NULL;
1261 struct gl_framebuffer *stfb;
1262
1263 if (!st)
1264 return;
1265
1266 stfb = st_ws_framebuffer(ctx->DrawBuffer);
1267 if (!stfb || !stfb->drawable->flush_swapbuffers)
1268 return;
1269
1270 stfb->drawable->flush_swapbuffers(st, stfb->drawable);
1271 }
1272
1273
1274 /**
1275 * Add a color renderbuffer on demand. The FBO must correspond to a window,
1276 * not a user-created FBO.
1277 */
1278 bool
st_manager_add_color_renderbuffer(struct gl_context * ctx,struct gl_framebuffer * fb,gl_buffer_index idx)1279 st_manager_add_color_renderbuffer(struct gl_context *ctx,
1280 struct gl_framebuffer *fb,
1281 gl_buffer_index idx)
1282 {
1283 struct gl_framebuffer *stfb = st_ws_framebuffer(fb);
1284
1285 /* FBO */
1286 if (!stfb)
1287 return false;
1288
1289 assert(_mesa_is_winsys_fbo(fb));
1290
1291 if (stfb->Attachment[idx].Renderbuffer)
1292 return true;
1293
1294 switch (idx) {
1295 case BUFFER_FRONT_LEFT:
1296 case BUFFER_BACK_LEFT:
1297 case BUFFER_FRONT_RIGHT:
1298 case BUFFER_BACK_RIGHT:
1299 break;
1300 default:
1301 return false;
1302 }
1303
1304 if (!st_framebuffer_add_renderbuffer(stfb, idx,
1305 stfb->Visual.sRGBCapable))
1306 return false;
1307
1308 st_framebuffer_update_attachments(stfb);
1309
1310 /*
1311 * Force a call to the frontend manager to validate the
1312 * new renderbuffer. It might be that there is a window system
1313 * renderbuffer available.
1314 */
1315 if (stfb->drawable)
1316 stfb->drawable_stamp = p_atomic_read(&stfb->drawable->stamp) - 1;
1317
1318 st_invalidate_buffers(st_context(ctx));
1319
1320 return true;
1321 }
1322
1323
1324 static unsigned
get_version(struct pipe_screen * screen,struct st_config_options * options,gl_api api)1325 get_version(struct pipe_screen *screen,
1326 struct st_config_options *options, gl_api api)
1327 {
1328 struct gl_constants consts = {0};
1329 struct gl_extensions extensions = {0};
1330 GLuint version;
1331
1332 if (_mesa_override_gl_version_contextless(&consts, &api, &version)) {
1333 return version;
1334 }
1335
1336 _mesa_init_constants(&consts, api);
1337 _mesa_init_extensions(&extensions);
1338
1339 st_init_limits(screen, &consts, &extensions, api);
1340 st_init_extensions(screen, &consts, &extensions, options, api);
1341 version = _mesa_get_version(&extensions, &consts, api);
1342 free(consts.SpirVExtensions);
1343 return version;
1344 }
1345
1346
1347 /**
1348 * Query supported OpenGL versions. (if applicable)
1349 * The format is (major*10+minor).
1350 */
1351 void
st_api_query_versions(struct pipe_frontend_screen * fscreen,struct st_config_options * options,int * gl_core_version,int * gl_compat_version,int * gl_es1_version,int * gl_es2_version)1352 st_api_query_versions(struct pipe_frontend_screen *fscreen,
1353 struct st_config_options *options,
1354 int *gl_core_version,
1355 int *gl_compat_version,
1356 int *gl_es1_version,
1357 int *gl_es2_version)
1358 {
1359 *gl_core_version = get_version(fscreen->screen, options, API_OPENGL_CORE);
1360 *gl_compat_version = get_version(fscreen->screen, options, API_OPENGL_COMPAT);
1361 *gl_es1_version = get_version(fscreen->screen, options, API_OPENGLES);
1362 *gl_es2_version = get_version(fscreen->screen, options, API_OPENGLES2);
1363 }
1364
1365
1366 void
st_manager_invalidate_drawables(struct gl_context * ctx)1367 st_manager_invalidate_drawables(struct gl_context *ctx)
1368 {
1369 struct gl_framebuffer *stdraw;
1370 struct gl_framebuffer *stread;
1371
1372 /*
1373 * Normally we'd want the frontend manager to mark the drawables
1374 * invalid only when needed. This will force the frontend manager
1375 * to revalidate the drawable, rather than just update the context with
1376 * the latest cached drawable info.
1377 */
1378
1379 stdraw = st_ws_framebuffer(ctx->DrawBuffer);
1380 stread = st_ws_framebuffer(ctx->ReadBuffer);
1381
1382 if (stdraw)
1383 stdraw->drawable_stamp = p_atomic_read(&stdraw->drawable->stamp) - 1;
1384 if (stread && stread != stdraw)
1385 stread->drawable_stamp = p_atomic_read(&stread->drawable->stamp) - 1;
1386 }
1387