1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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 TUNGSTEN GRAPHICS 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.
26 **************************************************************************/
29 #include "main/glheader.h"
30 #include "main/context.h"
31 #include "main/extensions.h"
32 #include "main/fbobject.h"
33 #include "main/framebuffer.h"
34 #include "main/imports.h"
35 #include "main/points.h"
36 #include "main/renderbuffer.h"
38 #include "swrast/swrast.h"
39 #include "swrast_setup/swrast_setup.h"
41 #include "drivers/common/driverfuncs.h"
42 #include "drivers/common/meta.h"
44 #include "intel_chipset.h"
45 #include "intel_buffers.h"
46 #include "intel_tex.h"
47 #include "intel_batchbuffer.h"
48 #include "intel_clear.h"
49 #include "intel_extensions.h"
50 #include "intel_pixel.h"
51 #include "intel_regions.h"
52 #include "intel_buffer_objects.h"
53 #include "intel_fbo.h"
54 #include "intel_bufmgr.h"
55 #include "intel_screen.h"
56 #include "intel_mipmap_tree.h"
59 #include "../glsl/ralloc.h"
62 int INTEL_DEBUG = (0);
66 static const GLubyte *
67 intelGetString(struct gl_context * ctx, GLenum name)
69 const struct intel_context *const intel = intel_context(ctx);
71 static char buffer[128];
75 return (GLubyte *) "Intel Open Source Technology Center";
79 switch (intel->intelScreen->deviceID) {
81 chipset = "Intel(R) 845G";
84 chipset = "Intel(R) 830M";
86 case PCI_CHIP_I855_GM:
87 chipset = "Intel(R) 852GM/855GM";
90 chipset = "Intel(R) 865G";
93 chipset = "Intel(R) 915G";
95 case PCI_CHIP_E7221_G:
96 chipset = "Intel (R) E7221G (i915)";
98 case PCI_CHIP_I915_GM:
99 chipset = "Intel(R) 915GM";
101 case PCI_CHIP_I945_G:
102 chipset = "Intel(R) 945G";
104 case PCI_CHIP_I945_GM:
105 chipset = "Intel(R) 945GM";
107 case PCI_CHIP_I945_GME:
108 chipset = "Intel(R) 945GME";
111 chipset = "Intel(R) G33";
114 chipset = "Intel(R) Q35";
117 chipset = "Intel(R) Q33";
119 case PCI_CHIP_IGD_GM:
121 chipset = "Intel(R) IGD";
123 case PCI_CHIP_I965_Q:
124 chipset = "Intel(R) 965Q";
126 case PCI_CHIP_I965_G:
127 case PCI_CHIP_I965_G_1:
128 chipset = "Intel(R) 965G";
130 case PCI_CHIP_I946_GZ:
131 chipset = "Intel(R) 946GZ";
133 case PCI_CHIP_I965_GM:
134 chipset = "Intel(R) 965GM";
136 case PCI_CHIP_I965_GME:
137 chipset = "Intel(R) 965GME/GLE";
139 case PCI_CHIP_GM45_GM:
140 chipset = "Mobile IntelĀ® GM45 Express Chipset";
142 case PCI_CHIP_IGD_E_G:
143 chipset = "Intel(R) Integrated Graphics Device";
146 chipset = "Intel(R) G45/G43";
149 chipset = "Intel(R) Q45/Q43";
152 chipset = "Intel(R) G41";
155 case PCI_CHIP_B43_G1:
156 chipset = "Intel(R) B43";
159 chipset = "Intel(R) Ironlake Desktop";
162 chipset = "Intel(R) Ironlake Mobile";
164 case PCI_CHIP_SANDYBRIDGE_GT1:
165 case PCI_CHIP_SANDYBRIDGE_GT2:
166 case PCI_CHIP_SANDYBRIDGE_GT2_PLUS:
167 chipset = "Intel(R) Sandybridge Desktop";
169 case PCI_CHIP_SANDYBRIDGE_M_GT1:
170 case PCI_CHIP_SANDYBRIDGE_M_GT2:
171 case PCI_CHIP_SANDYBRIDGE_M_GT2_PLUS:
172 chipset = "Intel(R) Sandybridge Mobile";
174 case PCI_CHIP_SANDYBRIDGE_S:
175 chipset = "Intel(R) Sandybridge Server";
177 case PCI_CHIP_IVYBRIDGE_GT1:
178 case PCI_CHIP_IVYBRIDGE_GT2:
179 chipset = "Intel(R) Ivybridge Desktop";
181 case PCI_CHIP_IVYBRIDGE_M_GT1:
182 case PCI_CHIP_IVYBRIDGE_M_GT2:
183 chipset = "Intel(R) Ivybridge Mobile";
185 case PCI_CHIP_IVYBRIDGE_S_GT1:
186 case PCI_CHIP_IVYBRIDGE_S_GT2:
187 chipset = "Intel(R) Ivybridge Server";
189 case PCI_CHIP_HASWELL_GT1:
190 case PCI_CHIP_HASWELL_GT2:
191 case PCI_CHIP_HASWELL_GT2_PLUS:
192 case PCI_CHIP_HASWELL_SDV_GT1:
193 case PCI_CHIP_HASWELL_SDV_GT2:
194 case PCI_CHIP_HASWELL_SDV_GT2_PLUS:
195 case PCI_CHIP_HASWELL_ULT_GT1:
196 case PCI_CHIP_HASWELL_ULT_GT2:
197 case PCI_CHIP_HASWELL_ULT_GT2_PLUS:
198 case PCI_CHIP_HASWELL_CRW_GT1:
199 case PCI_CHIP_HASWELL_CRW_GT2:
200 case PCI_CHIP_HASWELL_CRW_GT2_PLUS:
201 chipset = "Intel(R) Haswell Desktop";
203 case PCI_CHIP_HASWELL_M_GT1:
204 case PCI_CHIP_HASWELL_M_GT2:
205 case PCI_CHIP_HASWELL_M_GT2_PLUS:
206 case PCI_CHIP_HASWELL_SDV_M_GT1:
207 case PCI_CHIP_HASWELL_SDV_M_GT2:
208 case PCI_CHIP_HASWELL_SDV_M_GT2_PLUS:
209 case PCI_CHIP_HASWELL_ULT_M_GT1:
210 case PCI_CHIP_HASWELL_ULT_M_GT2:
211 case PCI_CHIP_HASWELL_ULT_M_GT2_PLUS:
212 case PCI_CHIP_HASWELL_CRW_M_GT1:
213 case PCI_CHIP_HASWELL_CRW_M_GT2:
214 case PCI_CHIP_HASWELL_CRW_M_GT2_PLUS:
215 chipset = "Intel(R) Haswell Mobile";
217 case PCI_CHIP_HASWELL_S_GT1:
218 case PCI_CHIP_HASWELL_S_GT2:
219 case PCI_CHIP_HASWELL_S_GT2_PLUS:
220 case PCI_CHIP_HASWELL_SDV_S_GT1:
221 case PCI_CHIP_HASWELL_SDV_S_GT2:
222 case PCI_CHIP_HASWELL_SDV_S_GT2_PLUS:
223 case PCI_CHIP_HASWELL_ULT_S_GT1:
224 case PCI_CHIP_HASWELL_ULT_S_GT2:
225 case PCI_CHIP_HASWELL_ULT_S_GT2_PLUS:
226 case PCI_CHIP_HASWELL_CRW_S_GT1:
227 case PCI_CHIP_HASWELL_CRW_S_GT2:
228 case PCI_CHIP_HASWELL_CRW_S_GT2_PLUS:
229 chipset = "Intel(R) Haswell Server";
232 chipset = "Unknown Intel Chipset";
236 (void) driGetRendererString(buffer, chipset, 0);
237 return (GLubyte *) buffer;
245 intel_downsample_for_dri2_flush(struct intel_context *intel,
246 __DRIdrawable *drawable)
248 if (intel->gen < 6) {
249 /* MSAA is not supported, so don't waste time checking for
250 * a multisample buffer.
255 struct gl_framebuffer *fb = drawable->driverPrivate;
256 struct intel_renderbuffer *rb;
258 /* Usually, only the back buffer will need to be downsampled. However,
259 * the front buffer will also need it if the user has rendered into it.
261 static const gl_buffer_index buffers[2] = {
266 for (int i = 0; i < 2; ++i) {
267 rb = intel_get_renderbuffer(fb, buffers[i]);
268 if (rb == NULL || rb->mt == NULL)
270 intel_miptree_downsample(intel, rb->mt);
275 intel_flush_front(struct gl_context *ctx)
277 struct intel_context *intel = intel_context(ctx);
278 __DRIcontext *driContext = intel->driContext;
279 __DRIdrawable *driDrawable = driContext->driDrawablePriv;
280 __DRIscreen *const screen = intel->intelScreen->driScrnPriv;
282 if (_mesa_is_winsys_fbo(ctx->DrawBuffer) && intel->front_buffer_dirty) {
283 if (screen->dri2.loader->flushFrontBuffer != NULL &&
285 driDrawable->loaderPrivate) {
287 /* Downsample before flushing FAKE_FRONT_LEFT to FRONT_LEFT.
289 * This potentially downsamples both front and back buffer. It
290 * is unnecessary to downsample the back, but harms nothing except
291 * performance. And no one cares about front-buffer render
294 intel_downsample_for_dri2_flush(intel, driDrawable);
296 screen->dri2.loader->flushFrontBuffer(driDrawable,
297 driDrawable->loaderPrivate);
299 /* We set the dirty bit in intel_prepare_render() if we're
300 * front buffer rendering once we get there.
302 intel->front_buffer_dirty = false;
308 intel_bits_per_pixel(const struct intel_renderbuffer *rb)
310 return _mesa_get_format_bytes(intel_rb_format(rb)) * 8;
314 intel_query_dri2_buffers(struct intel_context *intel,
315 __DRIdrawable *drawable,
316 __DRIbuffer **buffers,
320 intel_process_dri2_buffer(struct intel_context *intel,
321 __DRIdrawable *drawable,
323 struct intel_renderbuffer *rb,
324 const char *buffer_name);
327 intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable)
329 struct gl_framebuffer *fb = drawable->driverPrivate;
330 struct intel_renderbuffer *rb;
331 struct intel_context *intel = context->driverPrivate;
332 __DRIbuffer *buffers = NULL;
334 const char *region_name;
336 /* If we're rendering to the fake front buffer, make sure all the
337 * pending drawing has landed on the real front buffer. Otherwise
338 * when we eventually get to DRI2GetBuffersWithFormat the stale
339 * real front buffer contents will get copied to the new fake front
342 if (intel->is_front_buffer_rendering) {
343 intel_flush(&intel->ctx);
344 intel_flush_front(&intel->ctx);
347 /* Set this up front, so that in case our buffers get invalidated
348 * while we're getting new buffers, we don't clobber the stamp and
349 * thus ignore the invalidate. */
350 drawable->lastStamp = drawable->dri2.stamp;
352 if (unlikely(INTEL_DEBUG & DEBUG_DRI))
353 fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable);
355 intel_query_dri2_buffers(intel, drawable, &buffers, &count);
360 for (i = 0; i < count; i++) {
361 switch (buffers[i].attachment) {
362 case __DRI_BUFFER_FRONT_LEFT:
363 rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
364 region_name = "dri2 front buffer";
367 case __DRI_BUFFER_FAKE_FRONT_LEFT:
368 rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
369 region_name = "dri2 fake front buffer";
372 case __DRI_BUFFER_BACK_LEFT:
373 rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT);
374 region_name = "dri2 back buffer";
377 case __DRI_BUFFER_DEPTH:
378 case __DRI_BUFFER_HIZ:
379 case __DRI_BUFFER_DEPTH_STENCIL:
380 case __DRI_BUFFER_STENCIL:
381 case __DRI_BUFFER_ACCUM:
384 "unhandled buffer attach event, attachment type %d\n",
385 buffers[i].attachment);
389 intel_process_dri2_buffer(intel, drawable, &buffers[i], rb, region_name);
392 driUpdateFramebufferSize(&intel->ctx, drawable);
396 * intel_prepare_render should be called anywhere that curent read/drawbuffer
400 intel_prepare_render(struct intel_context *intel)
402 __DRIcontext *driContext = intel->driContext;
403 __DRIdrawable *drawable;
405 drawable = driContext->driDrawablePriv;
406 if (drawable && drawable->dri2.stamp != driContext->dri2.draw_stamp) {
407 if (drawable->lastStamp != drawable->dri2.stamp)
408 intel_update_renderbuffers(driContext, drawable);
409 intel_draw_buffer(&intel->ctx);
410 driContext->dri2.draw_stamp = drawable->dri2.stamp;
413 drawable = driContext->driReadablePriv;
414 if (drawable && drawable->dri2.stamp != driContext->dri2.read_stamp) {
415 if (drawable->lastStamp != drawable->dri2.stamp)
416 intel_update_renderbuffers(driContext, drawable);
417 driContext->dri2.read_stamp = drawable->dri2.stamp;
420 /* If we're currently rendering to the front buffer, the rendering
421 * that will happen next will probably dirty the front buffer. So
422 * mark it as dirty here.
424 if (intel->is_front_buffer_rendering)
425 intel->front_buffer_dirty = true;
427 /* Wait for the swapbuffers before the one we just emitted, so we
428 * don't get too many swaps outstanding for apps that are GPU-heavy
431 * We're using intelDRI2Flush (called from the loader before
432 * swapbuffer) and glFlush (for front buffer rendering) as the
433 * indicator that a frame is done and then throttle when we get
434 * here as we prepare to render the next frame. At this point for
435 * round trips for swap/copy and getting new buffers are done and
436 * we'll spend less time waiting on the GPU.
438 * Unfortunately, we don't have a handle to the batch containing
439 * the swap, and getting our hands on that doesn't seem worth it,
440 * so we just us the first batch we emitted after the last swap.
442 if (intel->need_throttle && intel->first_post_swapbuffers_batch) {
443 drm_intel_bo_wait_rendering(intel->first_post_swapbuffers_batch);
444 drm_intel_bo_unreference(intel->first_post_swapbuffers_batch);
445 intel->first_post_swapbuffers_batch = NULL;
446 intel->need_throttle = false;
451 intel_viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
453 struct intel_context *intel = intel_context(ctx);
454 __DRIcontext *driContext = intel->driContext;
456 if (intel->saved_viewport)
457 intel->saved_viewport(ctx, x, y, w, h);
459 if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) {
460 dri2InvalidateDrawable(driContext->driDrawablePriv);
461 dri2InvalidateDrawable(driContext->driReadablePriv);
465 static const struct dri_debug_control debug_control[] = {
466 { "tex", DEBUG_TEXTURE},
467 { "state", DEBUG_STATE},
468 { "ioctl", DEBUG_IOCTL},
469 { "blit", DEBUG_BLIT},
470 { "mip", DEBUG_MIPTREE},
471 { "fall", DEBUG_PERF},
472 { "perf", DEBUG_PERF},
473 { "verb", DEBUG_VERBOSE},
474 { "bat", DEBUG_BATCH},
475 { "pix", DEBUG_PIXEL},
476 { "buf", DEBUG_BUFMGR},
477 { "reg", DEBUG_REGION},
481 { "sync", DEBUG_SYNC},
482 { "prim", DEBUG_PRIMS },
483 { "vert", DEBUG_VERTS },
484 { "dri", DEBUG_DRI },
486 { "san", DEBUG_SANITY },
487 { "sleep", DEBUG_SLEEP },
488 { "stats", DEBUG_STATS },
489 { "tile", DEBUG_TILE },
491 { "urb", DEBUG_URB },
493 { "clip", DEBUG_CLIP },
494 { "aub", DEBUG_AUB },
495 { "shader_time", DEBUG_SHADER_TIME },
496 { "no16", DEBUG_NO16 },
502 intelInvalidateState(struct gl_context * ctx, GLuint new_state)
504 struct intel_context *intel = intel_context(ctx);
506 if (ctx->swrast_context)
507 _swrast_InvalidateState(ctx, new_state);
508 _vbo_InvalidateState(ctx, new_state);
510 intel->NewGLState |= new_state;
512 if (intel->vtbl.invalidate_state)
513 intel->vtbl.invalidate_state( intel, new_state );
517 intel_flush_rendering_to_batch(struct gl_context *ctx)
519 struct intel_context *intel = intel_context(ctx);
525 INTEL_FIREVERTICES(intel);
529 _intel_flush(struct gl_context *ctx, const char *file, int line)
531 struct intel_context *intel = intel_context(ctx);
533 intel_flush_rendering_to_batch(ctx);
535 if (intel->batch.used)
536 _intel_batchbuffer_flush(intel, file, line);
540 intel_glFlush(struct gl_context *ctx)
542 struct intel_context *intel = intel_context(ctx);
545 intel_flush_front(ctx);
546 if (intel->is_front_buffer_rendering)
547 intel->need_throttle = true;
551 intelFinish(struct gl_context * ctx)
553 struct intel_context *intel = intel_context(ctx);
556 intel_flush_front(ctx);
558 if (intel->batch.last_bo)
559 drm_intel_bo_wait_rendering(intel->batch.last_bo);
563 intelInitDriverFunctions(struct dd_function_table *functions)
565 _mesa_init_driver_functions(functions);
567 functions->Flush = intel_glFlush;
568 functions->Finish = intelFinish;
569 functions->GetString = intelGetString;
570 functions->UpdateState = intelInvalidateState;
572 intelInitTextureFuncs(functions);
573 intelInitTextureImageFuncs(functions);
574 intelInitTextureSubImageFuncs(functions);
575 intelInitTextureCopyImageFuncs(functions);
576 intelInitClearFuncs(functions);
577 intelInitBufferFuncs(functions);
578 intelInitPixelFuncs(functions);
579 intelInitBufferObjectFuncs(functions);
580 intel_init_syncobj_functions(functions);
584 validate_context_version(struct intel_screen *screen,
586 unsigned major_version,
587 unsigned minor_version,
588 unsigned *dri_ctx_error)
590 unsigned req_version = 10 * major_version + minor_version;
591 unsigned max_version = 0;
594 case API_OPENGL_COMPAT:
595 max_version = screen->max_gl_compat_version;
597 case API_OPENGL_CORE:
598 max_version = screen->max_gl_core_version;
601 max_version = screen->max_gl_es1_version;
604 max_version = screen->max_gl_es2_version;
611 if (max_version == 0) {
612 *dri_ctx_error = __DRI_CTX_ERROR_BAD_API;
614 } else if (req_version > max_version) {
615 *dri_ctx_error = __DRI_CTX_ERROR_BAD_VERSION;
623 intelInitContext(struct intel_context *intel,
625 unsigned major_version,
626 unsigned minor_version,
627 const struct gl_config * mesaVis,
628 __DRIcontext * driContextPriv,
629 void *sharedContextPrivate,
630 struct dd_function_table *functions,
631 unsigned *dri_ctx_error)
633 struct gl_context *ctx = &intel->ctx;
634 struct gl_context *shareCtx = (struct gl_context *) sharedContextPrivate;
635 __DRIscreen *sPriv = driContextPriv->driScreenPriv;
636 struct intel_screen *intelScreen = sPriv->driverPrivate;
638 struct gl_config visual;
640 /* we can't do anything without a connection to the device */
641 if (intelScreen->bufmgr == NULL) {
642 *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY;
646 if (!validate_context_version(intelScreen,
647 api, major_version, minor_version,
651 /* Can't rely on invalidate events, fall back to glViewport hack */
652 if (!driContextPriv->driScreenPriv->dri2.useInvalidate) {
653 intel->saved_viewport = functions->Viewport;
654 functions->Viewport = intel_viewport;
657 if (mesaVis == NULL) {
658 memset(&visual, 0, sizeof visual);
662 intel->intelScreen = intelScreen;
664 if (!_mesa_initialize_context(&intel->ctx, api, mesaVis, shareCtx,
666 *dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY;
667 printf("%s: failed to init mesa context\n", __FUNCTION__);
671 driContextPriv->driverPrivate = intel;
672 intel->driContext = driContextPriv;
673 intel->driFd = sPriv->fd;
675 intel->gen = intelScreen->gen;
677 const int devID = intelScreen->deviceID;
678 if (IS_SNB_GT1(devID) || IS_IVB_GT1(devID) || IS_HSW_GT1(devID))
680 else if (IS_SNB_GT2(devID) || IS_IVB_GT2(devID) || IS_HSW_GT2(devID))
685 if (IS_HASWELL(devID)) {
686 intel->is_haswell = true;
687 } else if (IS_G4X(devID)) {
688 intel->is_g4x = true;
689 } else if (IS_945(devID)) {
690 intel->is_945 = true;
693 if (intel->gen >= 5) {
694 intel->needs_ff_sync = true;
697 intel->has_separate_stencil = intel->intelScreen->hw_has_separate_stencil;
698 intel->must_use_separate_stencil = intel->intelScreen->hw_must_use_separate_stencil;
699 intel->has_hiz = intel->gen >= 6 && !intel->is_haswell;
700 intel->has_llc = intel->intelScreen->hw_has_llc;
701 intel->has_swizzling = intel->intelScreen->hw_has_swizzling;
703 memset(&ctx->TextureFormatSupported,
704 0, sizeof(ctx->TextureFormatSupported));
706 driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache,
707 sPriv->myNum, (intel->gen >= 4) ? "i965" : "i915");
709 intel->maxBatchSize = 4096;
711 intel->maxBatchSize = sizeof(intel->batch.map);
713 intel->bufmgr = intelScreen->bufmgr;
715 bo_reuse_mode = driQueryOptioni(&intel->optionCache, "bo_reuse");
716 switch (bo_reuse_mode) {
717 case DRI_CONF_BO_REUSE_DISABLED:
719 case DRI_CONF_BO_REUSE_ALL:
720 intel_bufmgr_gem_enable_reuse(intel->bufmgr);
724 ctx->Const.MinLineWidth = 1.0;
725 ctx->Const.MinLineWidthAA = 1.0;
726 ctx->Const.MaxLineWidth = 5.0;
727 ctx->Const.MaxLineWidthAA = 5.0;
728 ctx->Const.LineWidthGranularity = 0.5;
730 ctx->Const.MinPointSize = 1.0;
731 ctx->Const.MinPointSizeAA = 1.0;
732 ctx->Const.MaxPointSize = 255.0;
733 ctx->Const.MaxPointSizeAA = 3.0;
734 ctx->Const.PointSizeGranularity = 1.0;
736 ctx->Const.MaxSamples = 1;
739 ctx->Const.MaxClipPlanes = 8;
741 ctx->Const.StripTextureBorder = GL_TRUE;
743 /* reinitialize the context point state.
744 * It depend on constants in __struct gl_contextRec::Const
746 _mesa_init_point(ctx);
748 if (intel->gen >= 4) {
749 ctx->Const.MaxRenderbufferSize = 8192;
751 ctx->Const.MaxRenderbufferSize = 2048;
754 /* Initialize the software rasterizer and helper modules.
756 * As of GL 3.1 core, the gen4+ driver doesn't need the swrast context for
757 * software fallbacks (which we have to support on legacy GL to do weird
758 * glDrawPixels(), glBitmap(), and other functions).
760 if (intel->gen <= 3 || api != API_OPENGL_CORE) {
761 _swrast_CreateContext(ctx);
764 _vbo_CreateContext(ctx);
765 if (ctx->swrast_context) {
766 _tnl_CreateContext(ctx);
767 _swsetup_CreateContext(ctx);
769 /* Configure swrast to match hardware characteristics: */
770 _swrast_allow_pixel_fog(ctx, false);
771 _swrast_allow_vertex_fog(ctx, true);
774 _mesa_meta_init(ctx);
776 intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24;
777 intel->hw_stipple = 1;
779 /* XXX FBO: this doesn't seem to be used anywhere */
780 switch (mesaVis->depthBits) {
781 case 0: /* what to do in this case? */
783 intel->polygon_offset_scale = 1.0;
786 intel->polygon_offset_scale = 2.0; /* req'd to pass glean */
794 intel->polygon_offset_scale /= 0xffff;
796 intel->RenderIndex = ~0;
798 intelInitExtensions(ctx);
800 INTEL_DEBUG = driParseDebugString(getenv("INTEL_DEBUG"), debug_control);
801 if (INTEL_DEBUG & DEBUG_BUFMGR)
802 dri_bufmgr_set_debug(intel->bufmgr, true);
803 if ((INTEL_DEBUG & DEBUG_SHADER_TIME) && intel->gen < 7) {
805 "shader_time debugging requires gen7 (Ivybridge) or better.\n");
806 INTEL_DEBUG &= ~DEBUG_SHADER_TIME;
809 if (INTEL_DEBUG & DEBUG_AUB)
810 drm_intel_bufmgr_gem_set_aub_dump(intel->bufmgr, true);
812 intel_batchbuffer_init(intel);
814 intel_fbo_init(intel);
816 intel->use_texture_tiling = driQueryOptionb(&intel->optionCache,
818 intel->use_early_z = driQueryOptionb(&intel->optionCache, "early_z");
820 if (!driQueryOptionb(&intel->optionCache, "hiz")) {
821 intel->has_hiz = false;
822 /* On gen6, you can only do separate stencil with HIZ. */
824 intel->has_separate_stencil = false;
827 intel->prim.primitive = ~0;
829 /* Force all software fallbacks */
831 if (driQueryOptionb(&intel->optionCache, "no_rast")) {
832 fprintf(stderr, "disabling 3D rasterization\n");
837 if (driQueryOptionb(&intel->optionCache, "always_flush_batch")) {
838 fprintf(stderr, "flushing batchbuffer before/after each draw call\n");
839 intel->always_flush_batch = 1;
842 if (driQueryOptionb(&intel->optionCache, "always_flush_cache")) {
843 fprintf(stderr, "flushing GPU caches before/after each draw call\n");
844 intel->always_flush_cache = 1;
851 intelDestroyContext(__DRIcontext * driContextPriv)
853 struct intel_context *intel =
854 (struct intel_context *) driContextPriv->driverPrivate;
855 struct gl_context *ctx = &intel->ctx;
857 assert(intel); /* should never be null */
859 INTEL_FIREVERTICES(intel);
861 /* Dump a final BMP in case the application doesn't call SwapBuffers */
862 if (INTEL_DEBUG & DEBUG_AUB) {
863 intel_batchbuffer_flush(intel);
864 aub_dump_bmp(&intel->ctx);
867 _mesa_meta_free(&intel->ctx);
869 intel->vtbl.destroy(intel);
871 if (ctx->swrast_context) {
872 _swsetup_DestroyContext(&intel->ctx);
873 _tnl_DestroyContext(&intel->ctx);
875 _vbo_DestroyContext(&intel->ctx);
877 if (ctx->swrast_context)
878 _swrast_DestroyContext(&intel->ctx);
879 intel->Fallback = 0x0; /* don't call _swrast_Flush later */
881 intel_batchbuffer_free(intel);
883 free(intel->prim.vb);
884 intel->prim.vb = NULL;
885 drm_intel_bo_unreference(intel->prim.vb_bo);
886 intel->prim.vb_bo = NULL;
887 drm_intel_bo_unreference(intel->first_post_swapbuffers_batch);
888 intel->first_post_swapbuffers_batch = NULL;
890 driDestroyOptionCache(&intel->optionCache);
892 /* free the Mesa context */
893 _mesa_free_context_data(&intel->ctx);
895 _math_matrix_dtr(&intel->ViewportMatrix);
898 driContextPriv->driverPrivate = NULL;
903 intelUnbindContext(__DRIcontext * driContextPriv)
905 /* Unset current context and dispath table */
906 _mesa_make_current(NULL, NULL, NULL);
912 intelMakeCurrent(__DRIcontext * driContextPriv,
913 __DRIdrawable * driDrawPriv,
914 __DRIdrawable * driReadPriv)
916 struct intel_context *intel;
917 GET_CURRENT_CONTEXT(curCtx);
920 intel = (struct intel_context *) driContextPriv->driverPrivate;
924 /* According to the glXMakeCurrent() man page: "Pending commands to
925 * the previous context, if any, are flushed before it is released."
926 * But only flush if we're actually changing contexts.
928 if (intel_context(curCtx) && intel_context(curCtx) != intel) {
932 if (driContextPriv) {
933 struct gl_framebuffer *fb, *readFb;
935 if (driDrawPriv == NULL && driReadPriv == NULL) {
936 fb = _mesa_get_incomplete_framebuffer();
937 readFb = _mesa_get_incomplete_framebuffer();
939 fb = driDrawPriv->driverPrivate;
940 readFb = driReadPriv->driverPrivate;
941 driContextPriv->dri2.draw_stamp = driDrawPriv->dri2.stamp - 1;
942 driContextPriv->dri2.read_stamp = driReadPriv->dri2.stamp - 1;
945 intel_prepare_render(intel);
946 _mesa_make_current(&intel->ctx, fb, readFb);
948 /* We do this in intel_prepare_render() too, but intel->ctx.DrawBuffer
949 * is NULL at that point. We can't call _mesa_makecurrent()
950 * first, since we need the buffer size for the initial
951 * viewport. So just call intel_draw_buffer() again here. */
952 intel_draw_buffer(&intel->ctx);
955 _mesa_make_current(NULL, NULL, NULL);
962 * \brief Query DRI2 to obtain a DRIdrawable's buffers.
964 * To determine which DRI buffers to request, examine the renderbuffers
965 * attached to the drawable's framebuffer. Then request the buffers with
966 * DRI2GetBuffers() or DRI2GetBuffersWithFormat().
968 * This is called from intel_update_renderbuffers().
970 * \param drawable Drawable whose buffers are queried.
971 * \param buffers [out] List of buffers returned by DRI2 query.
972 * \param buffer_count [out] Number of buffers returned.
974 * \see intel_update_renderbuffers()
975 * \see DRI2GetBuffers()
976 * \see DRI2GetBuffersWithFormat()
979 intel_query_dri2_buffers(struct intel_context *intel,
980 __DRIdrawable *drawable,
981 __DRIbuffer **buffers,
984 __DRIscreen *screen = intel->intelScreen->driScrnPriv;
985 struct gl_framebuffer *fb = drawable->driverPrivate;
987 const int max_attachments = 4;
988 unsigned *attachments = calloc(2 * max_attachments, sizeof(unsigned));
990 struct intel_renderbuffer *front_rb;
991 struct intel_renderbuffer *back_rb;
993 front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
994 back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT);
996 if ((intel->is_front_buffer_rendering ||
997 intel->is_front_buffer_reading ||
998 !back_rb) && front_rb) {
999 attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
1000 attachments[i++] = intel_bits_per_pixel(front_rb);
1004 attachments[i++] = __DRI_BUFFER_BACK_LEFT;
1005 attachments[i++] = intel_bits_per_pixel(back_rb);
1008 assert(i <= 2 * max_attachments);
1010 *buffers = screen->dri2.loader->getBuffersWithFormat(drawable,
1015 drawable->loaderPrivate);
1020 * \brief Assign a DRI buffer's DRM region to a renderbuffer.
1022 * This is called from intel_update_renderbuffers().
1025 * DRI buffers whose attachment point is DRI2BufferStencil or
1026 * DRI2BufferDepthStencil are handled as special cases.
1028 * \param buffer_name is a human readable name, such as "dri2 front buffer",
1029 * that is passed to intel_region_alloc_for_handle().
1031 * \see intel_update_renderbuffers()
1032 * \see intel_region_alloc_for_handle()
1035 intel_process_dri2_buffer(struct intel_context *intel,
1036 __DRIdrawable *drawable,
1037 __DRIbuffer *buffer,
1038 struct intel_renderbuffer *rb,
1039 const char *buffer_name)
1041 struct intel_region *region = NULL;
1046 unsigned num_samples = rb->Base.Base.NumSamples;
1048 /* We try to avoid closing and reopening the same BO name, because the first
1049 * use of a mapping of the buffer involves a bunch of page faulting which is
1050 * moderately expensive.
1052 if (num_samples == 0) {
1055 rb->mt->region->name == buffer->name)
1059 rb->mt->singlesample_mt &&
1060 rb->mt->singlesample_mt->region &&
1061 rb->mt->singlesample_mt->region->name == buffer->name)
1065 if (unlikely(INTEL_DEBUG & DEBUG_DRI)) {
1067 "attaching buffer %d, at %d, cpp %d, pitch %d\n",
1068 buffer->name, buffer->attachment,
1069 buffer->cpp, buffer->pitch);
1072 intel_miptree_release(&rb->mt);
1073 region = intel_region_alloc_for_handle(intel->intelScreen,
1077 buffer->pitch / buffer->cpp,
1083 rb->mt = intel_miptree_create_for_dri2_buffer(intel,
1085 intel_rb_format(rb),
1088 intel_region_release(®ion);