brw_context.c revision 3f319eef76a31776085accb38c06851bc04f64b8
1/* 2 Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. 3 Copyright (C) Intel Corp. 2006. All Rights Reserved. 4 Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to 5 develop this 3D driver. 6 7 Permission is hereby granted, free of charge, to any person obtaining 8 a 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, sublicense, 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 17 portions of the Software. 18 19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 22 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 23 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 24 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 25 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26 27 **********************************************************************/ 28 /* 29 * Authors: 30 * Keith Whitwell <keith@tungstengraphics.com> 31 */ 32 33 34#include "main/api_exec.h" 35#include "main/context.h" 36#include "main/fbobject.h" 37#include "main/imports.h" 38#include "main/macros.h" 39#include "main/points.h" 40#include "main/version.h" 41#include "main/vtxfmt.h" 42 43#include "vbo/vbo_context.h" 44 45#include "drivers/common/driverfuncs.h" 46#include "drivers/common/meta.h" 47#include "utils.h" 48 49#include "brw_context.h" 50#include "brw_defines.h" 51#include "brw_draw.h" 52#include "brw_state.h" 53 54#include "intel_batchbuffer.h" 55#include "intel_buffer_objects.h" 56#include "intel_buffers.h" 57#include "intel_fbo.h" 58#include "intel_mipmap_tree.h" 59#include "intel_pixel.h" 60#include "intel_regions.h" 61#include "intel_tex.h" 62#include "intel_tex_obj.h" 63 64#include "swrast_setup/swrast_setup.h" 65#include "tnl/tnl.h" 66#include "tnl/t_pipeline.h" 67#include "glsl/ralloc.h" 68 69/*************************************** 70 * Mesa's Driver Functions 71 ***************************************/ 72 73static size_t 74brw_query_samples_for_format(struct gl_context *ctx, GLenum target, 75 GLenum internalFormat, int samples[16]) 76{ 77 struct brw_context *brw = brw_context(ctx); 78 79 (void) target; 80 81 switch (brw->gen) { 82 case 7: 83 samples[0] = 8; 84 samples[1] = 4; 85 return 2; 86 87 case 6: 88 samples[0] = 4; 89 return 1; 90 91 default: 92 samples[0] = 1; 93 return 1; 94 } 95} 96 97static const GLubyte * 98intelGetString(struct gl_context * ctx, GLenum name) 99{ 100 const struct brw_context *const brw = brw_context(ctx); 101 const char *chipset; 102 static char buffer[128]; 103 104 switch (name) { 105 case GL_VENDOR: 106 return (GLubyte *) "Intel Open Source Technology Center"; 107 break; 108 109 case GL_RENDERER: 110 switch (brw->intelScreen->deviceID) { 111#undef CHIPSET 112#define CHIPSET(id, family, str) case id: chipset = str; break; 113#include "pci_ids/i965_pci_ids.h" 114 default: 115 chipset = "Unknown Intel Chipset"; 116 break; 117 } 118 119 (void) driGetRendererString(buffer, chipset, 0); 120 return (GLubyte *) buffer; 121 122 default: 123 return NULL; 124 } 125} 126 127static void 128intel_viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h) 129{ 130 struct brw_context *brw = brw_context(ctx); 131 __DRIcontext *driContext = brw->driContext; 132 133 (void) x; 134 (void) y; 135 (void) w; 136 (void) h; 137 138 if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) { 139 dri2InvalidateDrawable(driContext->driDrawablePriv); 140 dri2InvalidateDrawable(driContext->driReadablePriv); 141 } 142} 143 144static void 145intelInvalidateState(struct gl_context * ctx, GLuint new_state) 146{ 147 struct brw_context *brw = brw_context(ctx); 148 149 if (ctx->swrast_context) 150 _swrast_InvalidateState(ctx, new_state); 151 _vbo_InvalidateState(ctx, new_state); 152 153 brw->NewGLState |= new_state; 154} 155 156static void 157intel_flush_front(struct gl_context *ctx) 158{ 159 struct brw_context *brw = brw_context(ctx); 160 __DRIcontext *driContext = brw->driContext; 161 __DRIdrawable *driDrawable = driContext->driDrawablePriv; 162 __DRIscreen *const screen = brw->intelScreen->driScrnPriv; 163 164 if (brw->front_buffer_dirty && _mesa_is_winsys_fbo(ctx->DrawBuffer)) { 165 if (screen->dri2.loader->flushFrontBuffer != NULL && 166 driDrawable && 167 driDrawable->loaderPrivate) { 168 169 /* Resolve before flushing FAKE_FRONT_LEFT to FRONT_LEFT. 170 * 171 * This potentially resolves both front and back buffer. It 172 * is unnecessary to resolve the back, but harms nothing except 173 * performance. And no one cares about front-buffer render 174 * performance. 175 */ 176 intel_resolve_for_dri2_flush(brw, driDrawable); 177 intel_batchbuffer_flush(brw); 178 179 screen->dri2.loader->flushFrontBuffer(driDrawable, 180 driDrawable->loaderPrivate); 181 182 /* We set the dirty bit in intel_prepare_render() if we're 183 * front buffer rendering once we get there. 184 */ 185 brw->front_buffer_dirty = false; 186 } 187 } 188} 189 190static void 191intel_glFlush(struct gl_context *ctx) 192{ 193 struct brw_context *brw = brw_context(ctx); 194 195 intel_batchbuffer_flush(brw); 196 intel_flush_front(ctx); 197 if (brw->is_front_buffer_rendering) 198 brw->need_throttle = true; 199} 200 201void 202intelFinish(struct gl_context * ctx) 203{ 204 struct brw_context *brw = brw_context(ctx); 205 206 intel_glFlush(ctx); 207 208 if (brw->batch.last_bo) 209 drm_intel_bo_wait_rendering(brw->batch.last_bo); 210} 211 212static void 213brw_init_driver_functions(struct brw_context *brw, 214 struct dd_function_table *functions) 215{ 216 _mesa_init_driver_functions(functions); 217 218 /* GLX uses DRI2 invalidate events to handle window resizing. 219 * Unfortunately, EGL does not - libEGL is written in XCB (not Xlib), 220 * which doesn't provide a mechanism for snooping the event queues. 221 * 222 * So EGL still relies on viewport hacks to handle window resizing. 223 * This should go away with DRI3000. 224 */ 225 if (!brw->driContext->driScreenPriv->dri2.useInvalidate) 226 functions->Viewport = intel_viewport; 227 228 functions->Flush = intel_glFlush; 229 functions->Finish = intelFinish; 230 functions->GetString = intelGetString; 231 functions->UpdateState = intelInvalidateState; 232 233 intelInitTextureFuncs(functions); 234 intelInitTextureImageFuncs(functions); 235 intelInitTextureSubImageFuncs(functions); 236 intelInitTextureCopyImageFuncs(functions); 237 intelInitClearFuncs(functions); 238 intelInitBufferFuncs(functions); 239 intelInitPixelFuncs(functions); 240 intelInitBufferObjectFuncs(functions); 241 intel_init_syncobj_functions(functions); 242 brw_init_object_purgeable_functions(functions); 243 244 brwInitFragProgFuncs( functions ); 245 brw_init_common_queryobj_functions(functions); 246 if (brw->gen >= 6) 247 gen6_init_queryobj_functions(functions); 248 else 249 gen4_init_queryobj_functions(functions); 250 251 functions->QuerySamplesForFormat = brw_query_samples_for_format; 252 253 functions->NewTransformFeedback = brw_new_transform_feedback; 254 functions->DeleteTransformFeedback = brw_delete_transform_feedback; 255 functions->GetTransformFeedbackVertexCount = 256 brw_get_transform_feedback_vertex_count; 257 if (brw->gen >= 7) { 258 functions->BeginTransformFeedback = gen7_begin_transform_feedback; 259 functions->EndTransformFeedback = gen7_end_transform_feedback; 260 functions->PauseTransformFeedback = gen7_pause_transform_feedback; 261 functions->ResumeTransformFeedback = gen7_resume_transform_feedback; 262 } else { 263 functions->BeginTransformFeedback = brw_begin_transform_feedback; 264 functions->EndTransformFeedback = brw_end_transform_feedback; 265 } 266 267 if (brw->gen >= 6) 268 functions->GetSamplePosition = gen6_get_sample_position; 269} 270 271/** 272 * Return array of MSAA modes supported by the hardware. The array is 273 * zero-terminated and sorted in decreasing order. 274 */ 275static const int* 276brw_supported_msaa_modes(const struct brw_context *brw) 277{ 278 static const int gen7_samples[] = {8, 4, 0}; 279 static const int gen6_samples[] = {4, 0}; 280 static const int gen4_samples[] = {0}; 281 if (brw->gen >= 7) { 282 return gen7_samples; 283 } else if (brw->gen == 6) { 284 return gen6_samples; 285 } else { 286 return gen4_samples; 287 } 288} 289 290/** 291 * Override GL_MAX_SAMPLES and related constants according to value of driconf 292 * option 'clamp_max_samples'. 293 */ 294static void 295brw_override_max_samples(struct brw_context *brw) 296{ 297 const int clamp_max_samples = driQueryOptioni(&brw->optionCache, 298 "clamp_max_samples"); 299 if (clamp_max_samples < 0) 300 return; 301 302 const int *supported_msaa_modes = brw_supported_msaa_modes(brw); 303 int max_samples = 0; 304 305 /* Select the largest supported MSAA mode that does not exceed 306 * clamp_max_samples. 307 */ 308 for (int i = 0; supported_msaa_modes[i] != 0; ++i) { 309 if (supported_msaa_modes[i] <= clamp_max_samples) { 310 max_samples = supported_msaa_modes[i]; 311 break; 312 } 313 } 314 315 brw->ctx.Const.MaxSamples = max_samples; 316 brw->ctx.Const.MaxColorTextureSamples = max_samples; 317 brw->ctx.Const.MaxDepthTextureSamples = max_samples; 318 brw->ctx.Const.MaxIntegerSamples = max_samples; 319} 320 321static void 322brw_initialize_context_constants(struct brw_context *brw) 323{ 324 struct gl_context *ctx = &brw->ctx; 325 326 ctx->Const.QueryCounterBits.Timestamp = 36; 327 328 ctx->Const.StripTextureBorder = true; 329 330 ctx->Const.MaxDualSourceDrawBuffers = 1; 331 ctx->Const.MaxDrawBuffers = BRW_MAX_DRAW_BUFFERS; 332 ctx->Const.FragmentProgram.MaxTextureImageUnits = BRW_MAX_TEX_UNIT; 333 ctx->Const.MaxTextureCoordUnits = 8; /* Mesa limit */ 334 ctx->Const.MaxTextureUnits = 335 MIN2(ctx->Const.MaxTextureCoordUnits, 336 ctx->Const.FragmentProgram.MaxTextureImageUnits); 337 ctx->Const.VertexProgram.MaxTextureImageUnits = BRW_MAX_TEX_UNIT; 338 if (brw->gen >= 7) 339 ctx->Const.GeometryProgram.MaxTextureImageUnits = BRW_MAX_TEX_UNIT; 340 else 341 ctx->Const.GeometryProgram.MaxTextureImageUnits = 0; 342 ctx->Const.MaxCombinedTextureImageUnits = 343 ctx->Const.VertexProgram.MaxTextureImageUnits + 344 ctx->Const.FragmentProgram.MaxTextureImageUnits + 345 ctx->Const.GeometryProgram.MaxTextureImageUnits; 346 347 ctx->Const.MaxTextureLevels = 14; /* 8192 */ 348 if (ctx->Const.MaxTextureLevels > MAX_TEXTURE_LEVELS) 349 ctx->Const.MaxTextureLevels = MAX_TEXTURE_LEVELS; 350 ctx->Const.Max3DTextureLevels = 9; 351 ctx->Const.MaxCubeTextureLevels = 12; 352 353 if (brw->gen >= 7) 354 ctx->Const.MaxArrayTextureLayers = 2048; 355 else 356 ctx->Const.MaxArrayTextureLayers = 512; 357 358 ctx->Const.MaxTextureRectSize = 1 << 12; 359 360 ctx->Const.MaxTextureMaxAnisotropy = 16.0; 361 362 ctx->Const.MaxRenderbufferSize = 8192; 363 364 /* Hardware only supports a limited number of transform feedback buffers. 365 * So we need to override the Mesa default (which is based only on software 366 * limits). 367 */ 368 ctx->Const.MaxTransformFeedbackBuffers = BRW_MAX_SOL_BUFFERS; 369 370 /* On Gen6, in the worst case, we use up one binding table entry per 371 * transform feedback component (see comments above the definition of 372 * BRW_MAX_SOL_BINDINGS, in brw_context.h), so we need to advertise a value 373 * for MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS equal to 374 * BRW_MAX_SOL_BINDINGS. 375 * 376 * In "separate components" mode, we need to divide this value by 377 * BRW_MAX_SOL_BUFFERS, so that the total number of binding table entries 378 * used up by all buffers will not exceed BRW_MAX_SOL_BINDINGS. 379 */ 380 ctx->Const.MaxTransformFeedbackInterleavedComponents = BRW_MAX_SOL_BINDINGS; 381 ctx->Const.MaxTransformFeedbackSeparateComponents = 382 BRW_MAX_SOL_BINDINGS / BRW_MAX_SOL_BUFFERS; 383 384 ctx->Const.AlwaysUseGetTransformFeedbackVertexCount = true; 385 386 const int max_samples = brw_supported_msaa_modes(brw)[0]; 387 ctx->Const.MaxSamples = max_samples; 388 ctx->Const.MaxColorTextureSamples = max_samples; 389 ctx->Const.MaxDepthTextureSamples = max_samples; 390 ctx->Const.MaxIntegerSamples = max_samples; 391 392 if (brw->gen >= 7) 393 ctx->Const.MaxProgramTextureGatherComponents = 4; 394 395 ctx->Const.MinLineWidth = 1.0; 396 ctx->Const.MinLineWidthAA = 1.0; 397 ctx->Const.MaxLineWidth = 5.0; 398 ctx->Const.MaxLineWidthAA = 5.0; 399 ctx->Const.LineWidthGranularity = 0.5; 400 401 ctx->Const.MinPointSize = 1.0; 402 ctx->Const.MinPointSizeAA = 1.0; 403 ctx->Const.MaxPointSize = 255.0; 404 ctx->Const.MaxPointSizeAA = 255.0; 405 ctx->Const.PointSizeGranularity = 1.0; 406 407 if (brw->gen >= 5 || brw->is_g4x) 408 ctx->Const.MaxClipPlanes = 8; 409 410 ctx->Const.VertexProgram.MaxNativeInstructions = 16 * 1024; 411 ctx->Const.VertexProgram.MaxAluInstructions = 0; 412 ctx->Const.VertexProgram.MaxTexInstructions = 0; 413 ctx->Const.VertexProgram.MaxTexIndirections = 0; 414 ctx->Const.VertexProgram.MaxNativeAluInstructions = 0; 415 ctx->Const.VertexProgram.MaxNativeTexInstructions = 0; 416 ctx->Const.VertexProgram.MaxNativeTexIndirections = 0; 417 ctx->Const.VertexProgram.MaxNativeAttribs = 16; 418 ctx->Const.VertexProgram.MaxNativeTemps = 256; 419 ctx->Const.VertexProgram.MaxNativeAddressRegs = 1; 420 ctx->Const.VertexProgram.MaxNativeParameters = 1024; 421 ctx->Const.VertexProgram.MaxEnvParams = 422 MIN2(ctx->Const.VertexProgram.MaxNativeParameters, 423 ctx->Const.VertexProgram.MaxEnvParams); 424 425 ctx->Const.FragmentProgram.MaxNativeInstructions = 1024; 426 ctx->Const.FragmentProgram.MaxNativeAluInstructions = 1024; 427 ctx->Const.FragmentProgram.MaxNativeTexInstructions = 1024; 428 ctx->Const.FragmentProgram.MaxNativeTexIndirections = 1024; 429 ctx->Const.FragmentProgram.MaxNativeAttribs = 12; 430 ctx->Const.FragmentProgram.MaxNativeTemps = 256; 431 ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0; 432 ctx->Const.FragmentProgram.MaxNativeParameters = 1024; 433 ctx->Const.FragmentProgram.MaxEnvParams = 434 MIN2(ctx->Const.FragmentProgram.MaxNativeParameters, 435 ctx->Const.FragmentProgram.MaxEnvParams); 436 437 /* Fragment shaders use real, 32-bit twos-complement integers for all 438 * integer types. 439 */ 440 ctx->Const.FragmentProgram.LowInt.RangeMin = 31; 441 ctx->Const.FragmentProgram.LowInt.RangeMax = 30; 442 ctx->Const.FragmentProgram.LowInt.Precision = 0; 443 ctx->Const.FragmentProgram.HighInt = ctx->Const.FragmentProgram.LowInt; 444 ctx->Const.FragmentProgram.MediumInt = ctx->Const.FragmentProgram.LowInt; 445 446 /* Gen6 converts quads to polygon in beginning of 3D pipeline, 447 * but we're not sure how it's actually done for vertex order, 448 * that affect provoking vertex decision. Always use last vertex 449 * convention for quad primitive which works as expected for now. 450 */ 451 if (brw->gen >= 6) 452 ctx->Const.QuadsFollowProvokingVertexConvention = false; 453 454 ctx->Const.NativeIntegers = true; 455 ctx->Const.UniformBooleanTrue = 1; 456 457 /* From the gen4 PRM, volume 4 page 127: 458 * 459 * "For SURFTYPE_BUFFER non-rendertarget surfaces, this field specifies 460 * the base address of the first element of the surface, computed in 461 * software by adding the surface base address to the byte offset of 462 * the element in the buffer." 463 * 464 * However, unaligned accesses are slower, so enforce buffer alignment. 465 */ 466 ctx->Const.UniformBufferOffsetAlignment = 16; 467 ctx->Const.TextureBufferOffsetAlignment = 16; 468 469 if (brw->gen >= 6) { 470 ctx->Const.MaxVarying = 32; 471 ctx->Const.VertexProgram.MaxOutputComponents = 128; 472 ctx->Const.GeometryProgram.MaxInputComponents = 64; 473 ctx->Const.GeometryProgram.MaxOutputComponents = 128; 474 ctx->Const.FragmentProgram.MaxInputComponents = 128; 475 } 476 477 /* We want the GLSL compiler to emit code that uses condition codes */ 478 for (int i = 0; i < MESA_SHADER_TYPES; i++) { 479 ctx->ShaderCompilerOptions[i].MaxIfDepth = brw->gen < 6 ? 16 : UINT_MAX; 480 ctx->ShaderCompilerOptions[i].EmitCondCodes = true; 481 ctx->ShaderCompilerOptions[i].EmitNoNoise = true; 482 ctx->ShaderCompilerOptions[i].EmitNoMainReturn = true; 483 ctx->ShaderCompilerOptions[i].EmitNoIndirectInput = true; 484 ctx->ShaderCompilerOptions[i].EmitNoIndirectOutput = true; 485 486 ctx->ShaderCompilerOptions[i].EmitNoIndirectUniform = 487 (i == MESA_SHADER_FRAGMENT); 488 ctx->ShaderCompilerOptions[i].EmitNoIndirectTemp = 489 (i == MESA_SHADER_FRAGMENT); 490 ctx->ShaderCompilerOptions[i].LowerClipDistance = true; 491 } 492 493 ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].PreferDP4 = true; 494} 495 496/** 497 * Process driconf (drirc) options, setting appropriate context flags. 498 * 499 * intelInitExtensions still pokes at optionCache directly, in order to 500 * avoid advertising various extensions. No flags are set, so it makes 501 * sense to continue doing that there. 502 */ 503static void 504brw_process_driconf_options(struct brw_context *brw) 505{ 506 struct gl_context *ctx = &brw->ctx; 507 508 driOptionCache *options = &brw->optionCache; 509 driParseConfigFiles(options, &brw->intelScreen->optionCache, 510 brw->driContext->driScreenPriv->myNum, "i965"); 511 512 int bo_reuse_mode = driQueryOptioni(options, "bo_reuse"); 513 switch (bo_reuse_mode) { 514 case DRI_CONF_BO_REUSE_DISABLED: 515 break; 516 case DRI_CONF_BO_REUSE_ALL: 517 intel_bufmgr_gem_enable_reuse(brw->bufmgr); 518 break; 519 } 520 521 if (!driQueryOptionb(options, "hiz")) { 522 brw->has_hiz = false; 523 /* On gen6, you can only do separate stencil with HIZ. */ 524 if (brw->gen == 6) 525 brw->has_separate_stencil = false; 526 } 527 528 if (driQueryOptionb(options, "always_flush_batch")) { 529 fprintf(stderr, "flushing batchbuffer before/after each draw call\n"); 530 brw->always_flush_batch = true; 531 } 532 533 if (driQueryOptionb(options, "always_flush_cache")) { 534 fprintf(stderr, "flushing GPU caches before/after each draw call\n"); 535 brw->always_flush_cache = true; 536 } 537 538 if (driQueryOptionb(options, "disable_throttling")) { 539 fprintf(stderr, "disabling flush throttling\n"); 540 brw->disable_throttling = true; 541 } 542 543 brw->disable_derivative_optimization = 544 driQueryOptionb(&brw->optionCache, "disable_derivative_optimization"); 545 546 brw->precompile = driQueryOptionb(&brw->optionCache, "shader_precompile"); 547 548 ctx->Const.ForceGLSLExtensionsWarn = 549 driQueryOptionb(options, "force_glsl_extensions_warn"); 550 551 ctx->Const.DisableGLSLLineContinuations = 552 driQueryOptionb(options, "disable_glsl_line_continuations"); 553} 554 555bool 556brwCreateContext(gl_api api, 557 const struct gl_config *mesaVis, 558 __DRIcontext *driContextPriv, 559 unsigned major_version, 560 unsigned minor_version, 561 uint32_t flags, 562 unsigned *dri_ctx_error, 563 void *sharedContextPrivate) 564{ 565 __DRIscreen *sPriv = driContextPriv->driScreenPriv; 566 struct gl_context *shareCtx = (struct gl_context *) sharedContextPrivate; 567 struct intel_screen *screen = sPriv->driverPrivate; 568 const struct brw_device_info *devinfo = screen->devinfo; 569 struct dd_function_table functions; 570 struct gl_config visual; 571 572 struct brw_context *brw = rzalloc(NULL, struct brw_context); 573 if (!brw) { 574 printf("%s: failed to alloc context\n", __FUNCTION__); 575 *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY; 576 return false; 577 } 578 579 driContextPriv->driverPrivate = brw; 580 brw->driContext = driContextPriv; 581 brw->intelScreen = screen; 582 brw->bufmgr = screen->bufmgr; 583 584 brw->gen = devinfo->gen; 585 brw->gt = devinfo->gt; 586 brw->is_g4x = devinfo->is_g4x; 587 brw->is_baytrail = devinfo->is_baytrail; 588 brw->is_haswell = devinfo->is_haswell; 589 brw->has_llc = devinfo->has_llc; 590 brw->has_hiz = devinfo->has_hiz_and_separate_stencil; 591 brw->has_separate_stencil = devinfo->has_hiz_and_separate_stencil; 592 brw->has_pln = devinfo->has_pln; 593 brw->has_compr4 = devinfo->has_compr4; 594 brw->has_surface_tile_offset = devinfo->has_surface_tile_offset; 595 brw->has_negative_rhw_bug = devinfo->has_negative_rhw_bug; 596 brw->needs_unlit_centroid_workaround = 597 devinfo->needs_unlit_centroid_workaround; 598 599 brw->must_use_separate_stencil = screen->hw_must_use_separate_stencil; 600 brw->has_swizzling = screen->hw_has_swizzling; 601 602 if (brw->gen >= 7) { 603 gen7_init_vtable_surface_functions(brw); 604 gen7_init_vtable_sampler_functions(brw); 605 brw->vtbl.emit_depth_stencil_hiz = gen7_emit_depth_stencil_hiz; 606 } else { 607 gen4_init_vtable_surface_functions(brw); 608 gen4_init_vtable_sampler_functions(brw); 609 brw->vtbl.emit_depth_stencil_hiz = brw_emit_depth_stencil_hiz; 610 } 611 612 brw_init_driver_functions(brw, &functions); 613 614 struct gl_context *ctx = &brw->ctx; 615 616 if (mesaVis == NULL) { 617 memset(&visual, 0, sizeof visual); 618 mesaVis = &visual; 619 } 620 621 if (!_mesa_initialize_context(ctx, api, mesaVis, shareCtx, &functions)) { 622 *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY; 623 printf("%s: failed to init mesa context\n", __FUNCTION__); 624 intelDestroyContext(driContextPriv); 625 return false; 626 } 627 628 /* Initialize the software rasterizer and helper modules. 629 * 630 * As of GL 3.1 core, the gen4+ driver doesn't need the swrast context for 631 * software fallbacks (which we have to support on legacy GL to do weird 632 * glDrawPixels(), glBitmap(), and other functions). 633 */ 634 if (api != API_OPENGL_CORE && api != API_OPENGLES2) { 635 _swrast_CreateContext(ctx); 636 } 637 638 _vbo_CreateContext(ctx); 639 if (ctx->swrast_context) { 640 _tnl_CreateContext(ctx); 641 TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline; 642 _swsetup_CreateContext(ctx); 643 644 /* Configure swrast to match hardware characteristics: */ 645 _swrast_allow_pixel_fog(ctx, false); 646 _swrast_allow_vertex_fog(ctx, true); 647 } 648 649 _mesa_meta_init(ctx); 650 651 brw_process_driconf_options(brw); 652 brw_process_intel_debug_variable(brw); 653 brw_initialize_context_constants(brw); 654 655 /* Reinitialize the context point state. It depends on ctx->Const values. */ 656 _mesa_init_point(ctx); 657 658 intel_batchbuffer_init(brw); 659 660 brw_init_state(brw); 661 662 intelInitExtensions(ctx); 663 664 intel_fbo_init(brw); 665 666 if (brw->gen >= 6) { 667 /* Create a new hardware context. Using a hardware context means that 668 * our GPU state will be saved/restored on context switch, allowing us 669 * to assume that the GPU is in the same state we left it in. 670 * 671 * This is required for transform feedback buffer offsets, query objects, 672 * and also allows us to reduce how much state we have to emit. 673 */ 674 brw->hw_ctx = drm_intel_gem_context_create(brw->bufmgr); 675 676 if (!brw->hw_ctx) { 677 fprintf(stderr, "Gen6+ requires Kernel 3.6 or later.\n"); 678 intelDestroyContext(driContextPriv); 679 return false; 680 } 681 } 682 683 brw_init_surface_formats(brw); 684 685 if (brw->is_g4x || brw->gen >= 5) { 686 brw->CMD_VF_STATISTICS = GM45_3DSTATE_VF_STATISTICS; 687 brw->CMD_PIPELINE_SELECT = CMD_PIPELINE_SELECT_GM45; 688 } else { 689 brw->CMD_VF_STATISTICS = GEN4_3DSTATE_VF_STATISTICS; 690 brw->CMD_PIPELINE_SELECT = CMD_PIPELINE_SELECT_965; 691 } 692 693 brw->max_vs_threads = devinfo->max_vs_threads; 694 brw->max_gs_threads = devinfo->max_gs_threads; 695 brw->max_wm_threads = devinfo->max_wm_threads; 696 brw->urb.size = devinfo->urb.size; 697 brw->urb.min_vs_entries = devinfo->urb.min_vs_entries; 698 brw->urb.max_vs_entries = devinfo->urb.max_vs_entries; 699 brw->urb.max_gs_entries = devinfo->urb.max_gs_entries; 700 701 /* Estimate the size of the mappable aperture into the GTT. There's an 702 * ioctl to get the whole GTT size, but not one to get the mappable subset. 703 * It turns out it's basically always 256MB, though some ancient hardware 704 * was smaller. 705 */ 706 uint32_t gtt_size = 256 * 1024 * 1024; 707 708 /* We don't want to map two objects such that a memcpy between them would 709 * just fault one mapping in and then the other over and over forever. So 710 * we would need to divide the GTT size by 2. Additionally, some GTT is 711 * taken up by things like the framebuffer and the ringbuffer and such, so 712 * be more conservative. 713 */ 714 brw->max_gtt_map_object_size = gtt_size / 4; 715 716 if (brw->gen == 6) 717 brw->urb.gen6_gs_previously_active = false; 718 719 brw->prim_restart.in_progress = false; 720 brw->prim_restart.enable_cut_index = false; 721 722 if (brw->gen < 6) { 723 brw->curbe.last_buf = calloc(1, 4096); 724 brw->curbe.next_buf = calloc(1, 4096); 725 } 726 727 ctx->VertexProgram._MaintainTnlProgram = true; 728 ctx->FragmentProgram._MaintainTexEnvProgram = true; 729 730 brw_draw_init( brw ); 731 732 if ((flags & __DRI_CTX_FLAG_DEBUG) != 0) { 733 /* Turn on some extra GL_ARB_debug_output generation. */ 734 brw->perf_debug = true; 735 } 736 737 brw_fs_alloc_reg_sets(brw); 738 brw_vec4_alloc_reg_set(brw); 739 740 if (INTEL_DEBUG & DEBUG_SHADER_TIME) 741 brw_init_shader_time(brw); 742 743 _mesa_compute_version(ctx); 744 745 /* Here we override context constants. We apply the overrides after 746 * calculation of the context version because we do not want the overridden 747 * constants to change the version. 748 */ 749 brw_override_max_samples(brw); 750 751 _mesa_initialize_dispatch_tables(ctx); 752 _mesa_initialize_vbo_vtxfmt(ctx); 753 754 if (ctx->Extensions.AMD_performance_monitor) { 755 brw_init_performance_monitors(brw); 756 } 757 758 return true; 759} 760 761void 762intelDestroyContext(__DRIcontext * driContextPriv) 763{ 764 struct brw_context *brw = 765 (struct brw_context *) driContextPriv->driverPrivate; 766 struct gl_context *ctx = &brw->ctx; 767 768 assert(brw); /* should never be null */ 769 if (!brw) 770 return; 771 772 /* Dump a final BMP in case the application doesn't call SwapBuffers */ 773 if (INTEL_DEBUG & DEBUG_AUB) { 774 intel_batchbuffer_flush(brw); 775 aub_dump_bmp(&brw->ctx); 776 } 777 778 _mesa_meta_free(&brw->ctx); 779 780 if (INTEL_DEBUG & DEBUG_SHADER_TIME) { 781 /* Force a report. */ 782 brw->shader_time.report_time = 0; 783 784 brw_collect_and_report_shader_time(brw); 785 brw_destroy_shader_time(brw); 786 } 787 788 brw_destroy_state(brw); 789 brw_draw_destroy(brw); 790 791 drm_intel_bo_unreference(brw->curbe.curbe_bo); 792 drm_intel_bo_unreference(brw->vs.base.const_bo); 793 drm_intel_bo_unreference(brw->wm.base.const_bo); 794 795 free(brw->curbe.last_buf); 796 free(brw->curbe.next_buf); 797 798 drm_intel_gem_context_destroy(brw->hw_ctx); 799 800 if (ctx->swrast_context) { 801 _swsetup_DestroyContext(&brw->ctx); 802 _tnl_DestroyContext(&brw->ctx); 803 } 804 _vbo_DestroyContext(&brw->ctx); 805 806 if (ctx->swrast_context) 807 _swrast_DestroyContext(&brw->ctx); 808 809 intel_batchbuffer_free(brw); 810 811 drm_intel_bo_unreference(brw->first_post_swapbuffers_batch); 812 brw->first_post_swapbuffers_batch = NULL; 813 814 driDestroyOptionCache(&brw->optionCache); 815 816 /* free the Mesa context */ 817 _mesa_free_context_data(&brw->ctx); 818 819 ralloc_free(brw); 820 driContextPriv->driverPrivate = NULL; 821} 822 823GLboolean 824intelUnbindContext(__DRIcontext * driContextPriv) 825{ 826 /* Unset current context and dispath table */ 827 _mesa_make_current(NULL, NULL, NULL); 828 829 return true; 830} 831 832/** 833 * Fixes up the context for GLES23 with our default-to-sRGB-capable behavior 834 * on window system framebuffers. 835 * 836 * Desktop GL is fairly reasonable in its handling of sRGB: You can ask if 837 * your renderbuffer can do sRGB encode, and you can flip a switch that does 838 * sRGB encode if the renderbuffer can handle it. You can ask specifically 839 * for a visual where you're guaranteed to be capable, but it turns out that 840 * everyone just makes all their ARGB8888 visuals capable and doesn't offer 841 * incapable ones, becuase there's no difference between the two in resources 842 * used. Applications thus get built that accidentally rely on the default 843 * visual choice being sRGB, so we make ours sRGB capable. Everything sounds 844 * great... 845 * 846 * But for GLES2/3, they decided that it was silly to not turn on sRGB encode 847 * for sRGB renderbuffers you made with the GL_EXT_texture_sRGB equivalent. 848 * So they removed the enable knob and made it "if the renderbuffer is sRGB 849 * capable, do sRGB encode". Then, for your window system renderbuffers, you 850 * can ask for sRGB visuals and get sRGB encode, or not ask for sRGB visuals 851 * and get no sRGB encode (assuming that both kinds of visual are available). 852 * Thus our choice to support sRGB by default on our visuals for desktop would 853 * result in broken rendering of GLES apps that aren't expecting sRGB encode. 854 * 855 * Unfortunately, renderbuffer setup happens before a context is created. So 856 * in intel_screen.c we always set up sRGB, and here, if you're a GLES2/3 857 * context (without an sRGB visual, though we don't have sRGB visuals exposed 858 * yet), we go turn that back off before anyone finds out. 859 */ 860static void 861intel_gles3_srgb_workaround(struct brw_context *brw, 862 struct gl_framebuffer *fb) 863{ 864 struct gl_context *ctx = &brw->ctx; 865 866 if (_mesa_is_desktop_gl(ctx) || !fb->Visual.sRGBCapable) 867 return; 868 869 /* Some day when we support the sRGB capable bit on visuals available for 870 * GLES, we'll need to respect that and not disable things here. 871 */ 872 fb->Visual.sRGBCapable = false; 873 for (int i = 0; i < BUFFER_COUNT; i++) { 874 if (fb->Attachment[i].Renderbuffer && 875 fb->Attachment[i].Renderbuffer->Format == MESA_FORMAT_SARGB8) { 876 fb->Attachment[i].Renderbuffer->Format = MESA_FORMAT_ARGB8888; 877 } 878 } 879} 880 881GLboolean 882intelMakeCurrent(__DRIcontext * driContextPriv, 883 __DRIdrawable * driDrawPriv, 884 __DRIdrawable * driReadPriv) 885{ 886 struct brw_context *brw; 887 GET_CURRENT_CONTEXT(curCtx); 888 889 if (driContextPriv) 890 brw = (struct brw_context *) driContextPriv->driverPrivate; 891 else 892 brw = NULL; 893 894 /* According to the glXMakeCurrent() man page: "Pending commands to 895 * the previous context, if any, are flushed before it is released." 896 * But only flush if we're actually changing contexts. 897 */ 898 if (brw_context(curCtx) && brw_context(curCtx) != brw) { 899 _mesa_flush(curCtx); 900 } 901 902 if (driContextPriv) { 903 struct gl_context *ctx = &brw->ctx; 904 struct gl_framebuffer *fb, *readFb; 905 906 if (driDrawPriv == NULL && driReadPriv == NULL) { 907 fb = _mesa_get_incomplete_framebuffer(); 908 readFb = _mesa_get_incomplete_framebuffer(); 909 } else { 910 fb = driDrawPriv->driverPrivate; 911 readFb = driReadPriv->driverPrivate; 912 driContextPriv->dri2.draw_stamp = driDrawPriv->dri2.stamp - 1; 913 driContextPriv->dri2.read_stamp = driReadPriv->dri2.stamp - 1; 914 } 915 916 /* The sRGB workaround changes the renderbuffer's format. We must change 917 * the format before the renderbuffer's miptree get's allocated, otherwise 918 * the formats of the renderbuffer and its miptree will differ. 919 */ 920 intel_gles3_srgb_workaround(brw, fb); 921 intel_gles3_srgb_workaround(brw, readFb); 922 923 intel_prepare_render(brw); 924 _mesa_make_current(ctx, fb, readFb); 925 } else { 926 _mesa_make_current(NULL, NULL, NULL); 927 } 928 929 return true; 930} 931 932void 933intel_resolve_for_dri2_flush(struct brw_context *brw, 934 __DRIdrawable *drawable) 935{ 936 if (brw->gen < 6) { 937 /* MSAA and fast color clear are not supported, so don't waste time 938 * checking whether a resolve is needed. 939 */ 940 return; 941 } 942 943 struct gl_framebuffer *fb = drawable->driverPrivate; 944 struct intel_renderbuffer *rb; 945 946 /* Usually, only the back buffer will need to be downsampled. However, 947 * the front buffer will also need it if the user has rendered into it. 948 */ 949 static const gl_buffer_index buffers[2] = { 950 BUFFER_BACK_LEFT, 951 BUFFER_FRONT_LEFT, 952 }; 953 954 for (int i = 0; i < 2; ++i) { 955 rb = intel_get_renderbuffer(fb, buffers[i]); 956 if (rb == NULL || rb->mt == NULL) 957 continue; 958 if (rb->mt->num_samples <= 1) 959 intel_miptree_resolve_color(brw, rb->mt); 960 else 961 intel_miptree_downsample(brw, rb->mt); 962 } 963} 964 965static unsigned 966intel_bits_per_pixel(const struct intel_renderbuffer *rb) 967{ 968 return _mesa_get_format_bytes(intel_rb_format(rb)) * 8; 969} 970 971static void 972intel_query_dri2_buffers(struct brw_context *brw, 973 __DRIdrawable *drawable, 974 __DRIbuffer **buffers, 975 int *count); 976 977static void 978intel_process_dri2_buffer(struct brw_context *brw, 979 __DRIdrawable *drawable, 980 __DRIbuffer *buffer, 981 struct intel_renderbuffer *rb, 982 const char *buffer_name); 983 984void 985intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) 986{ 987 struct gl_framebuffer *fb = drawable->driverPrivate; 988 struct intel_renderbuffer *rb; 989 struct brw_context *brw = context->driverPrivate; 990 __DRIbuffer *buffers = NULL; 991 int i, count; 992 const char *region_name; 993 994 /* Set this up front, so that in case our buffers get invalidated 995 * while we're getting new buffers, we don't clobber the stamp and 996 * thus ignore the invalidate. */ 997 drawable->lastStamp = drawable->dri2.stamp; 998 999 if (unlikely(INTEL_DEBUG & DEBUG_DRI)) 1000 fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable); 1001 1002 intel_query_dri2_buffers(brw, drawable, &buffers, &count); 1003 1004 if (buffers == NULL) 1005 return; 1006 1007 for (i = 0; i < count; i++) { 1008 switch (buffers[i].attachment) { 1009 case __DRI_BUFFER_FRONT_LEFT: 1010 rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); 1011 region_name = "dri2 front buffer"; 1012 break; 1013 1014 case __DRI_BUFFER_FAKE_FRONT_LEFT: 1015 rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); 1016 region_name = "dri2 fake front buffer"; 1017 break; 1018 1019 case __DRI_BUFFER_BACK_LEFT: 1020 rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); 1021 region_name = "dri2 back buffer"; 1022 break; 1023 1024 case __DRI_BUFFER_DEPTH: 1025 case __DRI_BUFFER_HIZ: 1026 case __DRI_BUFFER_DEPTH_STENCIL: 1027 case __DRI_BUFFER_STENCIL: 1028 case __DRI_BUFFER_ACCUM: 1029 default: 1030 fprintf(stderr, 1031 "unhandled buffer attach event, attachment type %d\n", 1032 buffers[i].attachment); 1033 return; 1034 } 1035 1036 intel_process_dri2_buffer(brw, drawable, &buffers[i], rb, region_name); 1037 } 1038 1039 driUpdateFramebufferSize(&brw->ctx, drawable); 1040} 1041 1042/** 1043 * intel_prepare_render should be called anywhere that curent read/drawbuffer 1044 * state is required. 1045 */ 1046void 1047intel_prepare_render(struct brw_context *brw) 1048{ 1049 __DRIcontext *driContext = brw->driContext; 1050 __DRIdrawable *drawable; 1051 1052 drawable = driContext->driDrawablePriv; 1053 if (drawable && drawable->dri2.stamp != driContext->dri2.draw_stamp) { 1054 if (drawable->lastStamp != drawable->dri2.stamp) 1055 intel_update_renderbuffers(driContext, drawable); 1056 driContext->dri2.draw_stamp = drawable->dri2.stamp; 1057 } 1058 1059 drawable = driContext->driReadablePriv; 1060 if (drawable && drawable->dri2.stamp != driContext->dri2.read_stamp) { 1061 if (drawable->lastStamp != drawable->dri2.stamp) 1062 intel_update_renderbuffers(driContext, drawable); 1063 driContext->dri2.read_stamp = drawable->dri2.stamp; 1064 } 1065 1066 /* If we're currently rendering to the front buffer, the rendering 1067 * that will happen next will probably dirty the front buffer. So 1068 * mark it as dirty here. 1069 */ 1070 if (brw->is_front_buffer_rendering) 1071 brw->front_buffer_dirty = true; 1072 1073 /* Wait for the swapbuffers before the one we just emitted, so we 1074 * don't get too many swaps outstanding for apps that are GPU-heavy 1075 * but not CPU-heavy. 1076 * 1077 * We're using intelDRI2Flush (called from the loader before 1078 * swapbuffer) and glFlush (for front buffer rendering) as the 1079 * indicator that a frame is done and then throttle when we get 1080 * here as we prepare to render the next frame. At this point for 1081 * round trips for swap/copy and getting new buffers are done and 1082 * we'll spend less time waiting on the GPU. 1083 * 1084 * Unfortunately, we don't have a handle to the batch containing 1085 * the swap, and getting our hands on that doesn't seem worth it, 1086 * so we just us the first batch we emitted after the last swap. 1087 */ 1088 if (brw->need_throttle && brw->first_post_swapbuffers_batch) { 1089 if (!brw->disable_throttling) 1090 drm_intel_bo_wait_rendering(brw->first_post_swapbuffers_batch); 1091 drm_intel_bo_unreference(brw->first_post_swapbuffers_batch); 1092 brw->first_post_swapbuffers_batch = NULL; 1093 brw->need_throttle = false; 1094 } 1095} 1096 1097/** 1098 * \brief Query DRI2 to obtain a DRIdrawable's buffers. 1099 * 1100 * To determine which DRI buffers to request, examine the renderbuffers 1101 * attached to the drawable's framebuffer. Then request the buffers with 1102 * DRI2GetBuffers() or DRI2GetBuffersWithFormat(). 1103 * 1104 * This is called from intel_update_renderbuffers(). 1105 * 1106 * \param drawable Drawable whose buffers are queried. 1107 * \param buffers [out] List of buffers returned by DRI2 query. 1108 * \param buffer_count [out] Number of buffers returned. 1109 * 1110 * \see intel_update_renderbuffers() 1111 * \see DRI2GetBuffers() 1112 * \see DRI2GetBuffersWithFormat() 1113 */ 1114static void 1115intel_query_dri2_buffers(struct brw_context *brw, 1116 __DRIdrawable *drawable, 1117 __DRIbuffer **buffers, 1118 int *buffer_count) 1119{ 1120 __DRIscreen *screen = brw->intelScreen->driScrnPriv; 1121 struct gl_framebuffer *fb = drawable->driverPrivate; 1122 int i = 0; 1123 unsigned attachments[8]; 1124 1125 struct intel_renderbuffer *front_rb; 1126 struct intel_renderbuffer *back_rb; 1127 1128 front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT); 1129 back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT); 1130 1131 memset(attachments, 0, sizeof(attachments)); 1132 if ((brw->is_front_buffer_rendering || 1133 brw->is_front_buffer_reading || 1134 !back_rb) && front_rb) { 1135 /* If a fake front buffer is in use, then querying for 1136 * __DRI_BUFFER_FRONT_LEFT will cause the server to copy the image from 1137 * the real front buffer to the fake front buffer. So before doing the 1138 * query, we need to make sure all the pending drawing has landed in the 1139 * real front buffer. 1140 */ 1141 intel_batchbuffer_flush(brw); 1142 intel_flush_front(&brw->ctx); 1143 1144 attachments[i++] = __DRI_BUFFER_FRONT_LEFT; 1145 attachments[i++] = intel_bits_per_pixel(front_rb); 1146 } else if (front_rb && brw->front_buffer_dirty) { 1147 /* We have pending front buffer rendering, but we aren't querying for a 1148 * front buffer. If the front buffer we have is a fake front buffer, 1149 * the X server is going to throw it away when it processes the query. 1150 * So before doing the query, make sure all the pending drawing has 1151 * landed in the real front buffer. 1152 */ 1153 intel_batchbuffer_flush(brw); 1154 intel_flush_front(&brw->ctx); 1155 } 1156 1157 if (back_rb) { 1158 attachments[i++] = __DRI_BUFFER_BACK_LEFT; 1159 attachments[i++] = intel_bits_per_pixel(back_rb); 1160 } 1161 1162 assert(i <= ARRAY_SIZE(attachments)); 1163 1164 *buffers = screen->dri2.loader->getBuffersWithFormat(drawable, 1165 &drawable->w, 1166 &drawable->h, 1167 attachments, i / 2, 1168 buffer_count, 1169 drawable->loaderPrivate); 1170} 1171 1172/** 1173 * \brief Assign a DRI buffer's DRM region to a renderbuffer. 1174 * 1175 * This is called from intel_update_renderbuffers(). 1176 * 1177 * \par Note: 1178 * DRI buffers whose attachment point is DRI2BufferStencil or 1179 * DRI2BufferDepthStencil are handled as special cases. 1180 * 1181 * \param buffer_name is a human readable name, such as "dri2 front buffer", 1182 * that is passed to intel_region_alloc_for_handle(). 1183 * 1184 * \see intel_update_renderbuffers() 1185 * \see intel_region_alloc_for_handle() 1186 */ 1187static void 1188intel_process_dri2_buffer(struct brw_context *brw, 1189 __DRIdrawable *drawable, 1190 __DRIbuffer *buffer, 1191 struct intel_renderbuffer *rb, 1192 const char *buffer_name) 1193{ 1194 struct intel_region *region = NULL; 1195 1196 if (!rb) 1197 return; 1198 1199 unsigned num_samples = rb->Base.Base.NumSamples; 1200 1201 /* We try to avoid closing and reopening the same BO name, because the first 1202 * use of a mapping of the buffer involves a bunch of page faulting which is 1203 * moderately expensive. 1204 */ 1205 if (num_samples == 0) { 1206 if (rb->mt && 1207 rb->mt->region && 1208 rb->mt->region->name == buffer->name) 1209 return; 1210 } else { 1211 if (rb->mt && 1212 rb->mt->singlesample_mt && 1213 rb->mt->singlesample_mt->region && 1214 rb->mt->singlesample_mt->region->name == buffer->name) 1215 return; 1216 } 1217 1218 if (unlikely(INTEL_DEBUG & DEBUG_DRI)) { 1219 fprintf(stderr, 1220 "attaching buffer %d, at %d, cpp %d, pitch %d\n", 1221 buffer->name, buffer->attachment, 1222 buffer->cpp, buffer->pitch); 1223 } 1224 1225 intel_miptree_release(&rb->mt); 1226 region = intel_region_alloc_for_handle(brw->intelScreen, 1227 buffer->cpp, 1228 drawable->w, 1229 drawable->h, 1230 buffer->pitch, 1231 buffer->name, 1232 buffer_name); 1233 if (!region) 1234 return; 1235 1236 rb->mt = intel_miptree_create_for_dri2_buffer(brw, 1237 buffer->attachment, 1238 intel_rb_format(rb), 1239 num_samples, 1240 region); 1241 intel_region_release(®ion); 1242} 1243