1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #include "main/imports.h"
29 #include "main/accum.h"
30 #include "main/api_exec.h"
31 #include "main/context.h"
32 #include "main/glthread.h"
33 #include "main/samplerobj.h"
34 #include "main/shaderobj.h"
35 #include "main/version.h"
36 #include "main/vtxfmt.h"
37 #include "main/hash.h"
38 #include "program/prog_cache.h"
39 #include "vbo/vbo.h"
40 #include "glapi/glapi.h"
41 #include "st_manager.h"
42 #include "st_context.h"
43 #include "st_debug.h"
44 #include "st_cb_bitmap.h"
45 #include "st_cb_blit.h"
46 #include "st_cb_bufferobjects.h"
47 #include "st_cb_clear.h"
48 #include "st_cb_compute.h"
49 #include "st_cb_condrender.h"
50 #include "st_cb_copyimage.h"
51 #include "st_cb_drawpixels.h"
52 #include "st_cb_rasterpos.h"
53 #include "st_cb_drawtex.h"
54 #include "st_cb_eglimage.h"
55 #include "st_cb_fbo.h"
56 #include "st_cb_feedback.h"
57 #include "st_cb_memoryobjects.h"
58 #include "st_cb_msaa.h"
59 #include "st_cb_perfmon.h"
60 #include "st_cb_program.h"
61 #include "st_cb_queryobj.h"
62 #include "st_cb_readpixels.h"
63 #include "st_cb_texture.h"
64 #include "st_cb_xformfb.h"
65 #include "st_cb_flush.h"
66 #include "st_cb_syncobj.h"
67 #include "st_cb_strings.h"
68 #include "st_cb_texturebarrier.h"
69 #include "st_cb_viewport.h"
70 #include "st_atom.h"
71 #include "st_draw.h"
72 #include "st_extensions.h"
73 #include "st_gen_mipmap.h"
74 #include "st_pbo.h"
75 #include "st_program.h"
76 #include "st_sampler_view.h"
77 #include "st_shader_cache.h"
78 #include "st_vdpau.h"
79 #include "st_texture.h"
80 #include "pipe/p_context.h"
81 #include "util/u_inlines.h"
82 #include "util/u_upload_mgr.h"
83 #include "util/u_vbuf.h"
84 #include "cso_cache/cso_context.h"
85
86
87 DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4, "MESA_MVP_DP4", FALSE)
88
89
90 /**
91 * Called via ctx->Driver.Enable()
92 */
93 static void
st_Enable(struct gl_context * ctx,GLenum cap,GLboolean state)94 st_Enable(struct gl_context *ctx, GLenum cap, GLboolean state)
95 {
96 struct st_context *st = st_context(ctx);
97
98 switch (cap) {
99 case GL_DEBUG_OUTPUT:
100 case GL_DEBUG_OUTPUT_SYNCHRONOUS:
101 st_update_debug_callback(st);
102 break;
103 default:
104 break;
105 }
106 }
107
108
109 /**
110 * Called via ctx->Driver.QueryMemoryInfo()
111 */
112 static void
st_query_memory_info(struct gl_context * ctx,struct gl_memory_info * out)113 st_query_memory_info(struct gl_context *ctx, struct gl_memory_info *out)
114 {
115 struct pipe_screen *screen = st_context(ctx)->pipe->screen;
116 struct pipe_memory_info info;
117
118 assert(screen->query_memory_info);
119 if (!screen->query_memory_info)
120 return;
121
122 screen->query_memory_info(screen, &info);
123
124 out->total_device_memory = info.total_device_memory;
125 out->avail_device_memory = info.avail_device_memory;
126 out->total_staging_memory = info.total_staging_memory;
127 out->avail_staging_memory = info.avail_staging_memory;
128 out->device_memory_evicted = info.device_memory_evicted;
129 out->nr_device_memory_evictions = info.nr_device_memory_evictions;
130 }
131
132
133 uint64_t
st_get_active_states(struct gl_context * ctx)134 st_get_active_states(struct gl_context *ctx)
135 {
136 struct st_vertex_program *vp =
137 st_vertex_program(ctx->VertexProgram._Current);
138 struct st_common_program *tcp =
139 st_common_program(ctx->TessCtrlProgram._Current);
140 struct st_common_program *tep =
141 st_common_program(ctx->TessEvalProgram._Current);
142 struct st_common_program *gp =
143 st_common_program(ctx->GeometryProgram._Current);
144 struct st_fragment_program *fp =
145 st_fragment_program(ctx->FragmentProgram._Current);
146 struct st_compute_program *cp =
147 st_compute_program(ctx->ComputeProgram._Current);
148 uint64_t active_shader_states = 0;
149
150 if (vp)
151 active_shader_states |= vp->affected_states;
152 if (tcp)
153 active_shader_states |= tcp->affected_states;
154 if (tep)
155 active_shader_states |= tep->affected_states;
156 if (gp)
157 active_shader_states |= gp->affected_states;
158 if (fp)
159 active_shader_states |= fp->affected_states;
160 if (cp)
161 active_shader_states |= cp->affected_states;
162
163 /* Mark non-shader-resource shader states as "always active". */
164 return active_shader_states | ~ST_ALL_SHADER_RESOURCES;
165 }
166
167
168 void
st_invalidate_buffers(struct st_context * st)169 st_invalidate_buffers(struct st_context *st)
170 {
171 st->dirty |= ST_NEW_BLEND |
172 ST_NEW_DSA |
173 ST_NEW_FB_STATE |
174 ST_NEW_SAMPLE_MASK |
175 ST_NEW_SAMPLE_SHADING |
176 ST_NEW_FS_STATE |
177 ST_NEW_POLY_STIPPLE |
178 ST_NEW_VIEWPORT |
179 ST_NEW_RASTERIZER |
180 ST_NEW_SCISSOR |
181 ST_NEW_WINDOW_RECTANGLES;
182 }
183
184
185 /**
186 * Called via ctx->Driver.UpdateState()
187 */
188 static void
st_invalidate_state(struct gl_context * ctx)189 st_invalidate_state(struct gl_context *ctx)
190 {
191 GLbitfield new_state = ctx->NewState;
192 struct st_context *st = st_context(ctx);
193
194 if (new_state & _NEW_BUFFERS) {
195 st_invalidate_buffers(st);
196 } else {
197 /* These set a subset of flags set by _NEW_BUFFERS, so we only have to
198 * check them when _NEW_BUFFERS isn't set.
199 */
200 if (new_state & _NEW_PROGRAM)
201 st->dirty |= ST_NEW_RASTERIZER;
202
203 if (new_state & _NEW_FOG)
204 st->dirty |= ST_NEW_FS_STATE;
205
206 if (new_state & _NEW_FRAG_CLAMP) {
207 if (st->clamp_frag_color_in_shader)
208 st->dirty |= ST_NEW_FS_STATE;
209 else
210 st->dirty |= ST_NEW_RASTERIZER;
211 }
212 }
213
214 if (new_state & (_NEW_LIGHT |
215 _NEW_POINT))
216 st->dirty |= ST_NEW_RASTERIZER;
217
218 if (new_state & _NEW_PROJECTION &&
219 st_user_clip_planes_enabled(ctx))
220 st->dirty |= ST_NEW_CLIP_STATE;
221
222 if (new_state & _NEW_PIXEL)
223 st->dirty |= ST_NEW_PIXEL_TRANSFER;
224
225 if (new_state & _NEW_CURRENT_ATTRIB)
226 st->dirty |= ST_NEW_VERTEX_ARRAYS;
227
228 /* Update the vertex shader if ctx->Light._ClampVertexColor was changed. */
229 if (st->clamp_vert_color_in_shader && (new_state & _NEW_LIGHT))
230 st->dirty |= ST_NEW_VS_STATE;
231
232 /* Which shaders are dirty will be determined manually. */
233 if (new_state & _NEW_PROGRAM) {
234 st->gfx_shaders_may_be_dirty = true;
235 st->compute_shader_may_be_dirty = true;
236 /* This will mask out unused shader resources. */
237 st->active_states = st_get_active_states(ctx);
238 }
239
240 if (new_state & _NEW_TEXTURE_OBJECT) {
241 st->dirty |= st->active_states &
242 (ST_NEW_SAMPLER_VIEWS |
243 ST_NEW_SAMPLERS |
244 ST_NEW_IMAGE_UNITS);
245 if (ctx->FragmentProgram._Current &&
246 ctx->FragmentProgram._Current->ExternalSamplersUsed) {
247 st->dirty |= ST_NEW_FS_STATE;
248 }
249 }
250 }
251
252
253 static void
st_destroy_context_priv(struct st_context * st,bool destroy_pipe)254 st_destroy_context_priv(struct st_context *st, bool destroy_pipe)
255 {
256 uint shader, i;
257
258 st_destroy_atoms(st);
259 st_destroy_draw(st);
260 st_destroy_clear(st);
261 st_destroy_bitmap(st);
262 st_destroy_drawpix(st);
263 st_destroy_drawtex(st);
264 st_destroy_perfmon(st);
265 st_destroy_pbo_helpers(st);
266 st_destroy_bound_texture_handles(st);
267 st_destroy_bound_image_handles(st);
268
269 for (shader = 0; shader < ARRAY_SIZE(st->state.sampler_views); shader++) {
270 for (i = 0; i < ARRAY_SIZE(st->state.sampler_views[0]); i++) {
271 pipe_sampler_view_release(st->pipe,
272 &st->state.sampler_views[shader][i]);
273 }
274 }
275
276 /* free glDrawPixels cache data */
277 free(st->drawpix_cache.image);
278 pipe_resource_reference(&st->drawpix_cache.texture, NULL);
279
280 /* free glReadPixels cache data */
281 st_invalidate_readpix_cache(st);
282
283 cso_destroy_context(st->cso_context);
284
285 if (st->pipe && destroy_pipe)
286 st->pipe->destroy(st->pipe);
287
288 free(st);
289 }
290
291
292 static void
st_init_driver_flags(struct st_context * st)293 st_init_driver_flags(struct st_context *st)
294 {
295 struct gl_driver_flags *f = &st->ctx->DriverFlags;
296
297 f->NewArray = ST_NEW_VERTEX_ARRAYS;
298 f->NewRasterizerDiscard = ST_NEW_RASTERIZER;
299 f->NewTileRasterOrder = ST_NEW_RASTERIZER;
300 f->NewUniformBuffer = ST_NEW_UNIFORM_BUFFER;
301 f->NewDefaultTessLevels = ST_NEW_TESS_STATE;
302
303 /* Shader resources */
304 f->NewTextureBuffer = ST_NEW_SAMPLER_VIEWS;
305 if (st->has_hw_atomics)
306 f->NewAtomicBuffer = ST_NEW_HW_ATOMICS | ST_NEW_CS_ATOMICS;
307 else
308 f->NewAtomicBuffer = ST_NEW_ATOMIC_BUFFER;
309 f->NewShaderStorageBuffer = ST_NEW_STORAGE_BUFFER;
310 f->NewImageUnits = ST_NEW_IMAGE_UNITS;
311
312 f->NewShaderConstants[MESA_SHADER_VERTEX] = ST_NEW_VS_CONSTANTS;
313 f->NewShaderConstants[MESA_SHADER_TESS_CTRL] = ST_NEW_TCS_CONSTANTS;
314 f->NewShaderConstants[MESA_SHADER_TESS_EVAL] = ST_NEW_TES_CONSTANTS;
315 f->NewShaderConstants[MESA_SHADER_GEOMETRY] = ST_NEW_GS_CONSTANTS;
316 f->NewShaderConstants[MESA_SHADER_FRAGMENT] = ST_NEW_FS_CONSTANTS;
317 f->NewShaderConstants[MESA_SHADER_COMPUTE] = ST_NEW_CS_CONSTANTS;
318
319 f->NewWindowRectangles = ST_NEW_WINDOW_RECTANGLES;
320 f->NewFramebufferSRGB = ST_NEW_FB_STATE;
321 f->NewScissorRect = ST_NEW_SCISSOR;
322 f->NewScissorTest = ST_NEW_SCISSOR | ST_NEW_RASTERIZER;
323 f->NewAlphaTest = ST_NEW_DSA;
324 f->NewBlend = ST_NEW_BLEND;
325 f->NewBlendColor = ST_NEW_BLEND_COLOR;
326 f->NewColorMask = ST_NEW_BLEND;
327 f->NewDepth = ST_NEW_DSA;
328 f->NewLogicOp = ST_NEW_BLEND;
329 f->NewStencil = ST_NEW_DSA;
330 f->NewMultisampleEnable = ST_NEW_BLEND | ST_NEW_RASTERIZER |
331 ST_NEW_SAMPLE_MASK | ST_NEW_SAMPLE_SHADING;
332 f->NewSampleAlphaToXEnable = ST_NEW_BLEND;
333 f->NewSampleMask = ST_NEW_SAMPLE_MASK;
334 f->NewSampleShading = ST_NEW_SAMPLE_SHADING;
335
336 /* This depends on what the gallium driver wants. */
337 if (st->force_persample_in_shader) {
338 f->NewMultisampleEnable |= ST_NEW_FS_STATE;
339 f->NewSampleShading |= ST_NEW_FS_STATE;
340 } else {
341 f->NewSampleShading |= ST_NEW_RASTERIZER;
342 }
343
344 f->NewClipControl = ST_NEW_VIEWPORT | ST_NEW_RASTERIZER;
345 f->NewClipPlane = ST_NEW_CLIP_STATE;
346 f->NewClipPlaneEnable = ST_NEW_RASTERIZER;
347 f->NewDepthClamp = ST_NEW_RASTERIZER;
348 f->NewLineState = ST_NEW_RASTERIZER;
349 f->NewPolygonState = ST_NEW_RASTERIZER;
350 f->NewPolygonStipple = ST_NEW_POLY_STIPPLE;
351 f->NewViewport = ST_NEW_VIEWPORT;
352 }
353
354
355 static struct st_context *
st_create_context_priv(struct gl_context * ctx,struct pipe_context * pipe,const struct st_config_options * options,bool no_error)356 st_create_context_priv(struct gl_context *ctx, struct pipe_context *pipe,
357 const struct st_config_options *options, bool no_error)
358 {
359 struct pipe_screen *screen = pipe->screen;
360 uint i;
361 struct st_context *st = ST_CALLOC_STRUCT( st_context);
362
363 st->options = *options;
364
365 ctx->st = st;
366
367 st->ctx = ctx;
368 st->pipe = pipe;
369
370 /* state tracker needs the VBO module */
371 _vbo_CreateContext(ctx);
372
373 st->dirty = ST_ALL_STATES_MASK;
374
375 st->can_bind_const_buffer_as_vertex =
376 screen->get_param(screen, PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX);
377
378 /* st/mesa always uploads zero-stride vertex attribs, and other user
379 * vertex buffers are only possible with a compatibility profile.
380 * So tell the u_vbuf module that user VBOs are not possible with the Core
381 * profile, so that u_vbuf is bypassed completely if there is nothing else
382 * to do.
383 */
384 unsigned vbuf_flags =
385 ctx->API == API_OPENGL_CORE ? U_VBUF_FLAG_NO_USER_VBOS : 0;
386 st->cso_context = cso_create_context(pipe, vbuf_flags);
387
388 st_init_atoms(st);
389 st_init_clear(st);
390 st_init_draw(st);
391 st_init_pbo_helpers(st);
392
393 /* Choose texture target for glDrawPixels, glBitmap, renderbuffers */
394 if (pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
395 st->internal_target = PIPE_TEXTURE_2D;
396 else
397 st->internal_target = PIPE_TEXTURE_RECT;
398
399 /* Setup vertex element info for 'struct st_util_vertex'.
400 */
401 {
402 const unsigned slot = cso_get_aux_vertex_buffer_slot(st->cso_context);
403
404 /* If this assertion ever fails all state tracker calls to
405 * cso_get_aux_vertex_buffer_slot() should be audited. This
406 * particular call would have to be moved to just before each
407 * drawing call.
408 */
409 assert(slot == 0);
410
411 STATIC_ASSERT(sizeof(struct st_util_vertex) == 9 * sizeof(float));
412
413 memset(&st->util_velems, 0, sizeof(st->util_velems));
414 st->util_velems[0].src_offset = 0;
415 st->util_velems[0].vertex_buffer_index = slot;
416 st->util_velems[0].src_format = PIPE_FORMAT_R32G32B32_FLOAT;
417 st->util_velems[1].src_offset = 3 * sizeof(float);
418 st->util_velems[1].vertex_buffer_index = slot;
419 st->util_velems[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
420 st->util_velems[2].src_offset = 7 * sizeof(float);
421 st->util_velems[2].vertex_buffer_index = slot;
422 st->util_velems[2].src_format = PIPE_FORMAT_R32G32_FLOAT;
423 }
424
425 /* we want all vertex data to be placed in buffer objects */
426 vbo_use_buffer_objects(ctx);
427
428
429 /* make sure that no VBOs are left mapped when we're drawing. */
430 vbo_always_unmap_buffers(ctx);
431
432 /* Need these flags:
433 */
434 ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
435
436 ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
437
438 if (no_error)
439 ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR;
440
441 st->has_stencil_export =
442 screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
443 st->has_shader_model3 = screen->get_param(screen, PIPE_CAP_SM3);
444 st->has_etc1 = screen->is_format_supported(screen, PIPE_FORMAT_ETC1_RGB8,
445 PIPE_TEXTURE_2D, 0,
446 PIPE_BIND_SAMPLER_VIEW);
447 st->has_etc2 = screen->is_format_supported(screen, PIPE_FORMAT_ETC2_RGB8,
448 PIPE_TEXTURE_2D, 0,
449 PIPE_BIND_SAMPLER_VIEW);
450 st->prefer_blit_based_texture_transfer = screen->get_param(screen,
451 PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER);
452 st->force_persample_in_shader =
453 screen->get_param(screen, PIPE_CAP_SAMPLE_SHADING) &&
454 !screen->get_param(screen, PIPE_CAP_FORCE_PERSAMPLE_INTERP);
455 st->has_shareable_shaders = screen->get_param(screen,
456 PIPE_CAP_SHAREABLE_SHADERS);
457 st->needs_texcoord_semantic =
458 screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD);
459 st->apply_texture_swizzle_to_border_color =
460 !!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) &
461 (PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 |
462 PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600));
463 st->has_time_elapsed =
464 screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED);
465 st->has_half_float_packing =
466 screen->get_param(screen, PIPE_CAP_TGSI_PACK_HALF_FLOAT);
467 st->has_multi_draw_indirect =
468 screen->get_param(screen, PIPE_CAP_MULTI_DRAW_INDIRECT);
469
470 st->has_hw_atomics =
471 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
472 PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS)
473 ? true : false;
474
475 /* GL limits and extensions */
476 st_init_limits(pipe->screen, &ctx->Const, &ctx->Extensions, ctx->API);
477 st_init_extensions(pipe->screen, &ctx->Const,
478 &ctx->Extensions, &st->options, ctx->API);
479
480 if (st_have_perfmon(st)) {
481 ctx->Extensions.AMD_performance_monitor = GL_TRUE;
482 }
483
484 /* Enable shader-based fallbacks for ARB_color_buffer_float if needed. */
485 if (screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_UNCLAMPED)) {
486 if (!screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_CLAMPED)) {
487 st->clamp_vert_color_in_shader = GL_TRUE;
488 }
489
490 if (!screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMPED)) {
491 st->clamp_frag_color_in_shader = GL_TRUE;
492 }
493
494 /* For drivers which cannot do color clamping, it's better to just
495 * disable ARB_color_buffer_float in the core profile, because
496 * the clamping is deprecated there anyway. */
497 if (ctx->API == API_OPENGL_CORE &&
498 (st->clamp_frag_color_in_shader || st->clamp_vert_color_in_shader)) {
499 st->clamp_vert_color_in_shader = GL_FALSE;
500 st->clamp_frag_color_in_shader = GL_FALSE;
501 ctx->Extensions.ARB_color_buffer_float = GL_FALSE;
502 }
503 }
504
505 /* called after _mesa_create_context/_mesa_init_point, fix default user
506 * settable max point size up
507 */
508 ctx->Point.MaxSize = MAX2(ctx->Const.MaxPointSize,
509 ctx->Const.MaxPointSizeAA);
510 /* For vertex shaders, make sure not to emit saturate when SM 3.0
511 * is not supported
512 */
513 ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].EmitNoSat =
514 !st->has_shader_model3;
515
516 if (!ctx->Extensions.ARB_gpu_shader5) {
517 for (i = 0; i < MESA_SHADER_STAGES; i++)
518 ctx->Const.ShaderCompilerOptions[i].EmitNoIndirectSampler = true;
519 }
520
521 /* Set which shader types can be compiled at link time. */
522 st->shader_has_one_variant[MESA_SHADER_VERTEX] =
523 st->has_shareable_shaders &&
524 !st->clamp_vert_color_in_shader;
525
526 st->shader_has_one_variant[MESA_SHADER_FRAGMENT] =
527 st->has_shareable_shaders &&
528 !st->clamp_frag_color_in_shader &&
529 !st->force_persample_in_shader;
530
531 st->shader_has_one_variant[MESA_SHADER_TESS_CTRL] = st->has_shareable_shaders;
532 st->shader_has_one_variant[MESA_SHADER_TESS_EVAL] = st->has_shareable_shaders;
533 st->shader_has_one_variant[MESA_SHADER_GEOMETRY] = st->has_shareable_shaders;
534 st->shader_has_one_variant[MESA_SHADER_COMPUTE] = st->has_shareable_shaders;
535
536 st->bitmap.cache.empty = true;
537
538 _mesa_override_extensions(ctx);
539 _mesa_compute_version(ctx);
540
541 if (ctx->Version == 0) {
542 /* This can happen when a core profile was requested, but the driver
543 * does not support some features of GL 3.1 or later.
544 */
545 st_destroy_context_priv(st, false);
546 return NULL;
547 }
548
549 _mesa_initialize_dispatch_tables(ctx);
550 _mesa_initialize_vbo_vtxfmt(ctx);
551 st_init_driver_flags(st);
552
553 /* Initialize context's winsys buffers list */
554 LIST_INITHEAD(&st->winsys_buffers);
555
556 return st;
557 }
558
559
560 struct st_context *
st_create_context(gl_api api,struct pipe_context * pipe,const struct gl_config * visual,struct st_context * share,const struct st_config_options * options,bool no_error)561 st_create_context(gl_api api, struct pipe_context *pipe,
562 const struct gl_config *visual,
563 struct st_context *share,
564 const struct st_config_options *options,
565 bool no_error)
566 {
567 struct gl_context *ctx;
568 struct gl_context *shareCtx = share ? share->ctx : NULL;
569 struct dd_function_table funcs;
570 struct st_context *st;
571
572 memset(&funcs, 0, sizeof(funcs));
573 st_init_driver_functions(pipe->screen, &funcs);
574
575 ctx = calloc(1, sizeof(struct gl_context));
576 if (!ctx)
577 return NULL;
578
579 if (!_mesa_initialize_context(ctx, api, visual, shareCtx, &funcs)) {
580 free(ctx);
581 return NULL;
582 }
583
584 st_debug_init();
585
586 if (pipe->screen->get_disk_shader_cache &&
587 !(ST_DEBUG & DEBUG_TGSI))
588 ctx->Cache = pipe->screen->get_disk_shader_cache(pipe->screen);
589
590 /* XXX: need a capability bit in gallium to query if the pipe
591 * driver prefers DP4 or MUL/MAD for vertex transformation.
592 */
593 if (debug_get_option_mesa_mvp_dp4())
594 ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = GL_TRUE;
595
596 st = st_create_context_priv(ctx, pipe, options, no_error);
597 if (!st) {
598 _mesa_destroy_context(ctx);
599 }
600
601 return st;
602 }
603
604
605 /**
606 * Callback to release the sampler view attached to a texture object.
607 * Called by _mesa_HashWalk().
608 */
609 static void
destroy_tex_sampler_cb(GLuint id,void * data,void * userData)610 destroy_tex_sampler_cb(GLuint id, void *data, void *userData)
611 {
612 struct gl_texture_object *texObj = (struct gl_texture_object *) data;
613 struct st_context *st = (struct st_context *) userData;
614
615 st_texture_release_sampler_view(st, st_texture_object(texObj));
616 }
617
618
619 void
st_destroy_context(struct st_context * st)620 st_destroy_context(struct st_context *st)
621 {
622 struct gl_context *ctx = st->ctx;
623 struct st_framebuffer *stfb, *next;
624
625 GET_CURRENT_CONTEXT(curctx);
626
627 if (curctx == NULL) {
628 /* No current context, but we need one to release
629 * renderbuffer surface when we release framebuffer.
630 * So temporarily bind the context.
631 */
632 _mesa_make_current(ctx, NULL, NULL);
633 }
634
635 /* This must be called first so that glthread has a chance to finish */
636 _mesa_glthread_destroy(ctx);
637
638 _mesa_HashWalk(ctx->Shared->TexObjects, destroy_tex_sampler_cb, st);
639
640 st_reference_fragprog(st, &st->fp, NULL);
641 st_reference_prog(st, &st->gp, NULL);
642 st_reference_vertprog(st, &st->vp, NULL);
643 st_reference_prog(st, &st->tcp, NULL);
644 st_reference_prog(st, &st->tep, NULL);
645 st_reference_compprog(st, &st->cp, NULL);
646
647 /* release framebuffer in the winsys buffers list */
648 LIST_FOR_EACH_ENTRY_SAFE_REV(stfb, next, &st->winsys_buffers, head) {
649 st_framebuffer_reference(&stfb, NULL);
650 }
651
652 pipe_sampler_view_reference(&st->pixel_xfer.pixelmap_sampler_view, NULL);
653 pipe_resource_reference(&st->pixel_xfer.pixelmap_texture, NULL);
654
655 _vbo_DestroyContext(ctx);
656
657 st_destroy_program_variants(st);
658
659 _mesa_free_context_data(ctx);
660
661 /* This will free the st_context too, so 'st' must not be accessed
662 * afterwards. */
663 st_destroy_context_priv(st, true);
664 st = NULL;
665
666 free(ctx);
667 }
668
669
670 static void
st_emit_string_marker(struct gl_context * ctx,const GLchar * string,GLsizei len)671 st_emit_string_marker(struct gl_context *ctx, const GLchar *string, GLsizei len)
672 {
673 struct st_context *st = ctx->st;
674 st->pipe->emit_string_marker(st->pipe, string, len);
675 }
676
677
678 static void
st_set_background_context(struct gl_context * ctx,struct util_queue_monitoring * queue_info)679 st_set_background_context(struct gl_context *ctx,
680 struct util_queue_monitoring *queue_info)
681 {
682 struct st_context *st = ctx->st;
683 struct st_manager *smapi =
684 (struct st_manager *) st->iface.st_context_private;
685
686 assert(smapi->set_background_context);
687 smapi->set_background_context(&st->iface, queue_info);
688 }
689
690
691 static void
st_get_device_uuid(struct gl_context * ctx,char * uuid)692 st_get_device_uuid(struct gl_context *ctx, char *uuid)
693 {
694 struct pipe_screen *screen = st_context(ctx)->pipe->screen;
695
696 assert(GL_UUID_SIZE_EXT >= PIPE_UUID_SIZE);
697 memset(uuid, 0, GL_UUID_SIZE_EXT);
698 screen->get_device_uuid(screen, uuid);
699 }
700
701
702 static void
st_get_driver_uuid(struct gl_context * ctx,char * uuid)703 st_get_driver_uuid(struct gl_context *ctx, char *uuid)
704 {
705 struct pipe_screen *screen = st_context(ctx)->pipe->screen;
706
707 assert(GL_UUID_SIZE_EXT >= PIPE_UUID_SIZE);
708 memset(uuid, 0, GL_UUID_SIZE_EXT);
709 screen->get_driver_uuid(screen, uuid);
710 }
711
712
713 void
st_init_driver_functions(struct pipe_screen * screen,struct dd_function_table * functions)714 st_init_driver_functions(struct pipe_screen *screen,
715 struct dd_function_table *functions)
716 {
717 _mesa_init_shader_object_functions(functions);
718 _mesa_init_sampler_object_functions(functions);
719
720 st_init_blit_functions(functions);
721 st_init_bufferobject_functions(screen, functions);
722 st_init_clear_functions(functions);
723 st_init_bitmap_functions(functions);
724 st_init_copy_image_functions(functions);
725 st_init_drawpixels_functions(functions);
726 st_init_rasterpos_functions(functions);
727
728 st_init_drawtex_functions(functions);
729
730 st_init_eglimage_functions(functions);
731
732 st_init_fbo_functions(functions);
733 st_init_feedback_functions(functions);
734 st_init_memoryobject_functions(functions);
735 st_init_msaa_functions(functions);
736 st_init_perfmon_functions(functions);
737 st_init_program_functions(functions);
738 st_init_query_functions(functions);
739 st_init_cond_render_functions(functions);
740 st_init_readpixels_functions(functions);
741 st_init_texture_functions(functions);
742 st_init_texture_barrier_functions(functions);
743 st_init_flush_functions(screen, functions);
744 st_init_string_functions(functions);
745 st_init_viewport_functions(functions);
746 st_init_compute_functions(functions);
747
748 st_init_xformfb_functions(functions);
749 st_init_syncobj_functions(functions);
750
751 st_init_vdpau_functions(functions);
752
753 if (screen->get_param(screen, PIPE_CAP_STRING_MARKER))
754 functions->EmitStringMarker = st_emit_string_marker;
755
756 functions->Enable = st_Enable;
757 functions->UpdateState = st_invalidate_state;
758 functions->QueryMemoryInfo = st_query_memory_info;
759 functions->SetBackgroundContext = st_set_background_context;
760 functions->GetDriverUuid = st_get_driver_uuid;
761 functions->GetDeviceUuid = st_get_device_uuid;
762
763 /* GL_ARB_get_program_binary */
764 functions->GetProgramBinaryDriverSHA1 = st_get_program_binary_driver_sha1;
765 functions->ProgramBinarySerializeDriverBlob = st_serialise_tgsi_program;
766 functions->ProgramBinaryDeserializeDriverBlob = st_deserialise_tgsi_program;
767 }
768