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"
37 #include "swrast/swrast.h"
38 #include "swrast_setup/swrast_setup.h"
40 #include "drivers/common/driverfuncs.h"
41 #include "drivers/common/meta.h"
43 #include "intel_chipset.h"
44 #include "intel_buffers.h"
45 #include "intel_tex.h"
46 #include "intel_batchbuffer.h"
47 #include "intel_clear.h"
48 #include "intel_extensions.h"
49 #include "intel_pixel.h"
50 #include "intel_regions.h"
51 #include "intel_buffer_objects.h"
52 #include "intel_fbo.h"
53 #include "intel_bufmgr.h"
54 #include "intel_screen.h"
56 #include "drirenderbuffer.h"
61 int INTEL_DEBUG = (0);
65 static const GLubyte *
66 intelGetString(struct gl_context * ctx, GLenum name)
68 const struct intel_context *const intel = intel_context(ctx);
70 static char buffer[128];
74 return (GLubyte *) "Tungsten Graphics, Inc";
78 switch (intel->intelScreen->deviceID) {
80 chipset = "Intel(R) 845G";
83 chipset = "Intel(R) 830M";
85 case PCI_CHIP_I855_GM:
86 chipset = "Intel(R) 852GM/855GM";
89 chipset = "Intel(R) 865G";
92 chipset = "Intel(R) 915G";
94 case PCI_CHIP_E7221_G:
95 chipset = "Intel (R) E7221G (i915)";
97 case PCI_CHIP_I915_GM:
98 chipset = "Intel(R) 915GM";
100 case PCI_CHIP_I945_G:
101 chipset = "Intel(R) 945G";
103 case PCI_CHIP_I945_GM:
104 chipset = "Intel(R) 945GM";
106 case PCI_CHIP_I945_GME:
107 chipset = "Intel(R) 945GME";
110 chipset = "Intel(R) G33";
113 chipset = "Intel(R) Q35";
116 chipset = "Intel(R) Q33";
118 case PCI_CHIP_IGD_GM:
120 chipset = "Intel(R) IGD";
122 case PCI_CHIP_I965_Q:
123 chipset = "Intel(R) 965Q";
125 case PCI_CHIP_I965_G:
126 case PCI_CHIP_I965_G_1:
127 chipset = "Intel(R) 965G";
129 case PCI_CHIP_I946_GZ:
130 chipset = "Intel(R) 946GZ";
132 case PCI_CHIP_I965_GM:
133 chipset = "Intel(R) 965GM";
135 case PCI_CHIP_I965_GME:
136 chipset = "Intel(R) 965GME/GLE";
138 case PCI_CHIP_GM45_GM:
139 chipset = "Mobile IntelĀ® GM45 Express Chipset";
141 case PCI_CHIP_IGD_E_G:
142 chipset = "Intel(R) Integrated Graphics Device";
145 chipset = "Intel(R) G45/G43";
148 chipset = "Intel(R) Q45/Q43";
151 chipset = "Intel(R) G41";
154 case PCI_CHIP_B43_G1:
155 chipset = "Intel(R) B43";
158 chipset = "Intel(R) Ironlake Desktop";
161 chipset = "Intel(R) Ironlake Mobile";
163 case PCI_CHIP_SANDYBRIDGE_GT1:
164 case PCI_CHIP_SANDYBRIDGE_GT2:
165 case PCI_CHIP_SANDYBRIDGE_GT2_PLUS:
166 chipset = "Intel(R) Sandybridge Desktop";
168 case PCI_CHIP_SANDYBRIDGE_M_GT1:
169 case PCI_CHIP_SANDYBRIDGE_M_GT2:
170 case PCI_CHIP_SANDYBRIDGE_M_GT2_PLUS:
171 chipset = "Intel(R) Sandybridge Mobile";
173 case PCI_CHIP_SANDYBRIDGE_S:
174 chipset = "Intel(R) Sandybridge Server";
177 chipset = "Unknown Intel Chipset";
181 (void) driGetRendererString(buffer, chipset, 0);
182 return (GLubyte *) buffer;
190 intel_flush_front(struct gl_context *ctx)
192 struct intel_context *intel = intel_context(ctx);
193 __DRIcontext *driContext = intel->driContext;
194 __DRIscreen *const screen = intel->intelScreen->driScrnPriv;
196 if ((ctx->DrawBuffer->Name == 0) && intel->front_buffer_dirty) {
197 if (screen->dri2.loader &&
198 (screen->dri2.loader->base.version >= 2)
199 && (screen->dri2.loader->flushFrontBuffer != NULL) &&
200 driContext->driDrawablePriv &&
201 driContext->driDrawablePriv->loaderPrivate) {
202 (*screen->dri2.loader->flushFrontBuffer)(driContext->driDrawablePriv,
203 driContext->driDrawablePriv->loaderPrivate);
205 /* We set the dirty bit in intel_prepare_render() if we're
206 * front buffer rendering once we get there.
208 intel->front_buffer_dirty = GL_FALSE;
214 intel_bits_per_pixel(const struct intel_renderbuffer *rb)
216 return _mesa_get_format_bytes(rb->Base.Format) * 8;
220 intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable)
222 struct gl_framebuffer *fb = drawable->driverPrivate;
223 struct intel_renderbuffer *rb;
224 struct intel_region *region, *depth_region;
225 struct intel_context *intel = context->driverPrivate;
226 struct intel_renderbuffer *front_rb, *back_rb, *depth_rb, *stencil_rb;
227 __DRIbuffer *buffers = NULL;
230 unsigned int attachments[10];
231 const char *region_name;
233 /* If we're rendering to the fake front buffer, make sure all the
234 * pending drawing has landed on the real front buffer. Otherwise
235 * when we eventually get to DRI2GetBuffersWithFormat the stale
236 * real front buffer contents will get copied to the new fake front
239 if (intel->is_front_buffer_rendering) {
240 intel_flush(&intel->ctx);
241 intel_flush_front(&intel->ctx);
244 /* Set this up front, so that in case our buffers get invalidated
245 * while we're getting new buffers, we don't clobber the stamp and
246 * thus ignore the invalidate. */
247 drawable->lastStamp = drawable->dri2.stamp;
249 if (unlikely(INTEL_DEBUG & DEBUG_DRI))
250 fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable);
252 screen = intel->intelScreen->driScrnPriv;
254 if (screen->dri2.loader
255 && (screen->dri2.loader->base.version > 2)
256 && (screen->dri2.loader->getBuffersWithFormat != NULL)) {
258 front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
259 back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT);
260 depth_rb = intel_get_renderbuffer(fb, BUFFER_DEPTH);
261 stencil_rb = intel_get_renderbuffer(fb, BUFFER_STENCIL);
264 if ((intel->is_front_buffer_rendering ||
265 intel->is_front_buffer_reading ||
266 !back_rb) && front_rb) {
267 attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
268 attachments[i++] = intel_bits_per_pixel(front_rb);
272 attachments[i++] = __DRI_BUFFER_BACK_LEFT;
273 attachments[i++] = intel_bits_per_pixel(back_rb);
276 if ((depth_rb != NULL) && (stencil_rb != NULL)) {
277 attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL;
278 attachments[i++] = intel_bits_per_pixel(depth_rb);
279 } else if (depth_rb != NULL) {
280 attachments[i++] = __DRI_BUFFER_DEPTH;
281 attachments[i++] = intel_bits_per_pixel(depth_rb);
282 } else if (stencil_rb != NULL) {
283 attachments[i++] = __DRI_BUFFER_STENCIL;
284 attachments[i++] = intel_bits_per_pixel(stencil_rb);
288 (*screen->dri2.loader->getBuffersWithFormat)(drawable,
293 drawable->loaderPrivate);
294 } else if (screen->dri2.loader) {
296 if (intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT))
297 attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
298 if (intel_get_renderbuffer(fb, BUFFER_BACK_LEFT))
299 attachments[i++] = __DRI_BUFFER_BACK_LEFT;
300 if (intel_get_renderbuffer(fb, BUFFER_DEPTH))
301 attachments[i++] = __DRI_BUFFER_DEPTH;
302 if (intel_get_renderbuffer(fb, BUFFER_STENCIL))
303 attachments[i++] = __DRI_BUFFER_STENCIL;
305 buffers = (*screen->dri2.loader->getBuffers)(drawable,
310 drawable->loaderPrivate);
320 drawable->numClipRects = 1;
321 drawable->pClipRects[0].x1 = 0;
322 drawable->pClipRects[0].y1 = 0;
323 drawable->pClipRects[0].x2 = drawable->w;
324 drawable->pClipRects[0].y2 = drawable->h;
325 drawable->numBackClipRects = 1;
326 drawable->pBackClipRects[0].x1 = 0;
327 drawable->pBackClipRects[0].y1 = 0;
328 drawable->pBackClipRects[0].x2 = drawable->w;
329 drawable->pBackClipRects[0].y2 = drawable->h;
332 for (i = 0; i < count; i++) {
333 switch (buffers[i].attachment) {
334 case __DRI_BUFFER_FRONT_LEFT:
335 rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
336 region_name = "dri2 front buffer";
339 case __DRI_BUFFER_FAKE_FRONT_LEFT:
340 rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
341 region_name = "dri2 fake front buffer";
344 case __DRI_BUFFER_BACK_LEFT:
345 rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT);
346 region_name = "dri2 back buffer";
349 case __DRI_BUFFER_DEPTH:
350 rb = intel_get_renderbuffer(fb, BUFFER_DEPTH);
351 region_name = "dri2 depth buffer";
354 case __DRI_BUFFER_DEPTH_STENCIL:
355 rb = intel_get_renderbuffer(fb, BUFFER_DEPTH);
356 region_name = "dri2 depth / stencil buffer";
359 case __DRI_BUFFER_STENCIL:
360 rb = intel_get_renderbuffer(fb, BUFFER_STENCIL);
361 region_name = "dri2 stencil buffer";
364 case __DRI_BUFFER_ACCUM:
367 "unhandled buffer attach event, attachment type %d\n",
368 buffers[i].attachment);
375 if (rb->region && rb->region->name == buffers[i].name)
378 if (unlikely(INTEL_DEBUG & DEBUG_DRI))
380 "attaching buffer %d, at %d, cpp %d, pitch %d\n",
381 buffers[i].name, buffers[i].attachment,
382 buffers[i].cpp, buffers[i].pitch);
384 if (buffers[i].attachment == __DRI_BUFFER_STENCIL && depth_region) {
385 if (unlikely(INTEL_DEBUG & DEBUG_DRI))
386 fprintf(stderr, "(reusing depth buffer as stencil)\n");
387 intel_region_reference(®ion, depth_region);
390 region = intel_region_alloc_for_handle(intel->intelScreen,
394 buffers[i].pitch / buffers[i].cpp,
398 if (buffers[i].attachment == __DRI_BUFFER_DEPTH)
399 depth_region = region;
401 intel_renderbuffer_set_region(intel, rb, region);
402 intel_region_release(®ion);
404 if (buffers[i].attachment == __DRI_BUFFER_DEPTH_STENCIL) {
405 rb = intel_get_renderbuffer(fb, BUFFER_STENCIL);
407 struct intel_region *stencil_region = NULL;
409 if (rb->region && rb->region->name == buffers[i].name)
412 intel_region_reference(&stencil_region, region);
413 intel_renderbuffer_set_region(intel, rb, stencil_region);
414 intel_region_release(&stencil_region);
419 driUpdateFramebufferSize(&intel->ctx, drawable);
423 * intel_prepare_render should be called anywhere that curent read/drawbuffer
427 intel_prepare_render(struct intel_context *intel)
429 __DRIcontext *driContext = intel->driContext;
430 __DRIdrawable *drawable;
432 drawable = driContext->driDrawablePriv;
433 if (drawable && drawable->dri2.stamp != driContext->dri2.draw_stamp) {
434 if (drawable->lastStamp != drawable->dri2.stamp)
435 intel_update_renderbuffers(driContext, drawable);
436 intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer);
437 driContext->dri2.draw_stamp = drawable->dri2.stamp;
440 drawable = driContext->driReadablePriv;
441 if (drawable && drawable->dri2.stamp != driContext->dri2.read_stamp) {
442 if (drawable->lastStamp != drawable->dri2.stamp)
443 intel_update_renderbuffers(driContext, drawable);
444 driContext->dri2.read_stamp = drawable->dri2.stamp;
447 /* If we're currently rendering to the front buffer, the rendering
448 * that will happen next will probably dirty the front buffer. So
449 * mark it as dirty here.
451 if (intel->is_front_buffer_rendering)
452 intel->front_buffer_dirty = GL_TRUE;
454 /* Wait for the swapbuffers before the one we just emitted, so we
455 * don't get too many swaps outstanding for apps that are GPU-heavy
458 * We're using intelDRI2Flush (called from the loader before
459 * swapbuffer) and glFlush (for front buffer rendering) as the
460 * indicator that a frame is done and then throttle when we get
461 * here as we prepare to render the next frame. At this point for
462 * round trips for swap/copy and getting new buffers are done and
463 * we'll spend less time waiting on the GPU.
465 * Unfortunately, we don't have a handle to the batch containing
466 * the swap, and getting our hands on that doesn't seem worth it,
467 * so we just us the first batch we emitted after the last swap.
469 if (intel->need_throttle) {
470 drmCommandNone(intel->driFd, DRM_I915_GEM_THROTTLE);
471 intel->need_throttle = GL_FALSE;
476 intel_viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
478 struct intel_context *intel = intel_context(ctx);
479 __DRIcontext *driContext = intel->driContext;
481 if (intel->saved_viewport)
482 intel->saved_viewport(ctx, x, y, w, h);
484 if (ctx->DrawBuffer->Name == 0) {
485 dri2InvalidateDrawable(driContext->driDrawablePriv);
486 dri2InvalidateDrawable(driContext->driReadablePriv);
490 static const struct dri_debug_control debug_control[] = {
491 { "tex", DEBUG_TEXTURE},
492 { "state", DEBUG_STATE},
493 { "ioctl", DEBUG_IOCTL},
494 { "blit", DEBUG_BLIT},
495 { "mip", DEBUG_MIPTREE},
496 { "fall", DEBUG_FALLBACKS},
497 { "verb", DEBUG_VERBOSE},
498 { "bat", DEBUG_BATCH},
499 { "pix", DEBUG_PIXEL},
500 { "buf", DEBUG_BUFMGR},
501 { "reg", DEBUG_REGION},
504 { "sync", DEBUG_SYNC},
505 { "prim", DEBUG_PRIMS },
506 { "vert", DEBUG_VERTS },
507 { "dri", DEBUG_DRI },
509 { "san", DEBUG_SANITY },
510 { "sleep", DEBUG_SLEEP },
511 { "stats", DEBUG_STATS },
512 { "tile", DEBUG_TILE },
513 { "sing", DEBUG_SINGLE_THREAD },
514 { "thre", DEBUG_SINGLE_THREAD },
516 { "urb", DEBUG_URB },
518 { "clip", DEBUG_CLIP },
524 intelInvalidateState(struct gl_context * ctx, GLuint new_state)
526 struct intel_context *intel = intel_context(ctx);
528 _swrast_InvalidateState(ctx, new_state);
529 _swsetup_InvalidateState(ctx, new_state);
530 _vbo_InvalidateState(ctx, new_state);
531 _tnl_InvalidateState(ctx, new_state);
532 _tnl_invalidate_vertex_state(ctx, new_state);
534 intel->NewGLState |= new_state;
536 if (intel->vtbl.invalidate_state)
537 intel->vtbl.invalidate_state( intel, new_state );
541 intel_flush(struct gl_context *ctx)
543 struct intel_context *intel = intel_context(ctx);
549 INTEL_FIREVERTICES(intel);
551 if (intel->batch.used)
552 intel_batchbuffer_flush(intel);
556 intel_glFlush(struct gl_context *ctx)
558 struct intel_context *intel = intel_context(ctx);
561 intel_flush_front(ctx);
562 if (intel->is_front_buffer_rendering)
563 intel->need_throttle = GL_TRUE;
567 intelFinish(struct gl_context * ctx)
569 struct gl_framebuffer *fb = ctx->DrawBuffer;
573 intel_flush_front(ctx);
575 for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
576 struct intel_renderbuffer *irb;
578 irb = intel_renderbuffer(fb->_ColorDrawBuffers[i]);
580 if (irb && irb->region && irb->region->buffer)
581 drm_intel_bo_wait_rendering(irb->region->buffer);
583 if (fb->_DepthBuffer) {
584 /* XXX: Wait on buffer idle */
589 intelInitDriverFunctions(struct dd_function_table *functions)
591 _mesa_init_driver_functions(functions);
593 functions->Flush = intel_glFlush;
594 functions->Finish = intelFinish;
595 functions->GetString = intelGetString;
596 functions->UpdateState = intelInvalidateState;
598 intelInitTextureFuncs(functions);
599 intelInitTextureImageFuncs(functions);
600 intelInitTextureSubImageFuncs(functions);
601 intelInitTextureCopyImageFuncs(functions);
602 intelInitStateFuncs(functions);
603 intelInitClearFuncs(functions);
604 intelInitBufferFuncs(functions);
605 intelInitPixelFuncs(functions);
606 intelInitBufferObjectFuncs(functions);
607 intel_init_syncobj_functions(functions);
612 intelInitContext(struct intel_context *intel,
614 const struct gl_config * mesaVis,
615 __DRIcontext * driContextPriv,
616 void *sharedContextPrivate,
617 struct dd_function_table *functions)
619 struct gl_context *ctx = &intel->ctx;
620 struct gl_context *shareCtx = (struct gl_context *) sharedContextPrivate;
621 __DRIscreen *sPriv = driContextPriv->driScreenPriv;
622 struct intel_screen *intelScreen = sPriv->private;
624 struct gl_config visual;
626 /* we can't do anything without a connection to the device */
627 if (intelScreen->bufmgr == NULL)
630 /* Can't rely on invalidate events, fall back to glViewport hack */
631 if (!driContextPriv->driScreenPriv->dri2.useInvalidate) {
632 intel->saved_viewport = functions->Viewport;
633 functions->Viewport = intel_viewport;
636 if (mesaVis == NULL) {
637 memset(&visual, 0, sizeof visual);
641 if (!_mesa_initialize_context(&intel->ctx, api, mesaVis, shareCtx,
642 functions, (void *) intel)) {
643 printf("%s: failed to init mesa context\n", __FUNCTION__);
647 driContextPriv->driverPrivate = intel;
648 intel->intelScreen = intelScreen;
649 intel->driContext = driContextPriv;
650 intel->driFd = sPriv->fd;
652 intel->has_xrgb_textures = GL_TRUE;
653 if (IS_GEN6(intel->intelScreen->deviceID)) {
655 intel->needs_ff_sync = GL_TRUE;
656 intel->has_luminance_srgb = GL_TRUE;
657 } else if (IS_GEN5(intel->intelScreen->deviceID)) {
659 intel->needs_ff_sync = GL_TRUE;
660 intel->has_luminance_srgb = GL_TRUE;
661 } else if (IS_965(intel->intelScreen->deviceID)) {
663 if (IS_G4X(intel->intelScreen->deviceID)) {
664 intel->has_luminance_srgb = GL_TRUE;
665 intel->is_g4x = GL_TRUE;
667 } else if (IS_9XX(intel->intelScreen->deviceID)) {
669 if (IS_945(intel->intelScreen->deviceID)) {
670 intel->is_945 = GL_TRUE;
674 if (intel->intelScreen->deviceID == PCI_CHIP_I830_M ||
675 intel->intelScreen->deviceID == PCI_CHIP_845_G) {
676 intel->has_xrgb_textures = GL_FALSE;
680 memset(&ctx->TextureFormatSupported, 0,
681 sizeof(ctx->TextureFormatSupported));
682 ctx->TextureFormatSupported[MESA_FORMAT_ARGB8888] = GL_TRUE;
683 if (intel->has_xrgb_textures)
684 ctx->TextureFormatSupported[MESA_FORMAT_XRGB8888] = GL_TRUE;
685 ctx->TextureFormatSupported[MESA_FORMAT_ARGB4444] = GL_TRUE;
686 ctx->TextureFormatSupported[MESA_FORMAT_ARGB1555] = GL_TRUE;
687 ctx->TextureFormatSupported[MESA_FORMAT_RGB565] = GL_TRUE;
688 ctx->TextureFormatSupported[MESA_FORMAT_L8] = GL_TRUE;
689 ctx->TextureFormatSupported[MESA_FORMAT_A8] = GL_TRUE;
690 ctx->TextureFormatSupported[MESA_FORMAT_I8] = GL_TRUE;
691 ctx->TextureFormatSupported[MESA_FORMAT_AL88] = GL_TRUE;
693 ctx->TextureFormatSupported[MESA_FORMAT_AL1616] = GL_TRUE;
694 ctx->TextureFormatSupported[MESA_FORMAT_S8_Z24] = GL_TRUE;
696 * This was disabled in initial FBO enabling to avoid combinations
697 * of depth+stencil that wouldn't work together. We since decided
698 * that it was OK, since it's up to the app to come up with the
699 * combo that actually works, so this can probably be re-enabled.
702 ctx->TextureFormatSupported[MESA_FORMAT_Z16] = GL_TRUE;
703 ctx->TextureFormatSupported[MESA_FORMAT_Z24] = GL_TRUE;
706 /* ctx->Extensions.MESA_ycbcr_texture */
707 ctx->TextureFormatSupported[MESA_FORMAT_YCBCR] = GL_TRUE;
708 ctx->TextureFormatSupported[MESA_FORMAT_YCBCR_REV] = GL_TRUE;
710 /* GL_3DFX_texture_compression_FXT1 */
711 ctx->TextureFormatSupported[MESA_FORMAT_RGB_FXT1] = GL_TRUE;
712 ctx->TextureFormatSupported[MESA_FORMAT_RGBA_FXT1] = GL_TRUE;
714 /* GL_EXT_texture_compression_s3tc */
715 ctx->TextureFormatSupported[MESA_FORMAT_RGB_DXT1] = GL_TRUE;
716 ctx->TextureFormatSupported[MESA_FORMAT_RGBA_DXT1] = GL_TRUE;
717 ctx->TextureFormatSupported[MESA_FORMAT_RGBA_DXT3] = GL_TRUE;
718 ctx->TextureFormatSupported[MESA_FORMAT_RGBA_DXT5] = GL_TRUE;
721 /* GL_ARB_texture_rg */
722 ctx->TextureFormatSupported[MESA_FORMAT_R8] = GL_TRUE;
723 ctx->TextureFormatSupported[MESA_FORMAT_R16] = GL_TRUE;
724 ctx->TextureFormatSupported[MESA_FORMAT_RG88] = GL_TRUE;
725 ctx->TextureFormatSupported[MESA_FORMAT_RG1616] = GL_TRUE;
727 /* GL_MESA_texture_signed_rgba / GL_EXT_texture_snorm */
728 ctx->TextureFormatSupported[MESA_FORMAT_DUDV8] = GL_TRUE;
729 ctx->TextureFormatSupported[MESA_FORMAT_SIGNED_RGBA8888_REV] = GL_TRUE;
730 ctx->TextureFormatSupported[MESA_FORMAT_SIGNED_R8] = GL_TRUE;
731 ctx->TextureFormatSupported[MESA_FORMAT_SIGNED_RG88_REV] = GL_TRUE;
732 ctx->TextureFormatSupported[MESA_FORMAT_SIGNED_R16] = GL_TRUE;
733 ctx->TextureFormatSupported[MESA_FORMAT_SIGNED_GR1616] = GL_TRUE;
735 /* GL_EXT_texture_sRGB */
736 ctx->TextureFormatSupported[MESA_FORMAT_SARGB8] = GL_TRUE;
737 if (intel->gen >= 5 || intel->is_g4x)
738 ctx->TextureFormatSupported[MESA_FORMAT_SRGB_DXT1] = GL_TRUE;
739 ctx->TextureFormatSupported[MESA_FORMAT_SRGBA_DXT1] = GL_TRUE;
740 ctx->TextureFormatSupported[MESA_FORMAT_SRGBA_DXT3] = GL_TRUE;
741 ctx->TextureFormatSupported[MESA_FORMAT_SRGBA_DXT5] = GL_TRUE;
742 if (intel->has_luminance_srgb) {
743 ctx->TextureFormatSupported[MESA_FORMAT_SL8] = GL_TRUE;
744 ctx->TextureFormatSupported[MESA_FORMAT_SLA8] = GL_TRUE;
748 driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache,
749 sPriv->myNum, (intel->gen >= 4) ? "i965" : "i915");
751 intel->maxBatchSize = 4096;
753 intel->maxBatchSize = sizeof(intel->batch.map);
755 intel->bufmgr = intelScreen->bufmgr;
757 bo_reuse_mode = driQueryOptioni(&intel->optionCache, "bo_reuse");
758 switch (bo_reuse_mode) {
759 case DRI_CONF_BO_REUSE_DISABLED:
761 case DRI_CONF_BO_REUSE_ALL:
762 intel_bufmgr_gem_enable_reuse(intel->bufmgr);
766 /* This doesn't yet catch all non-conformant rendering, but it's a
769 if (getenv("INTEL_STRICT_CONFORMANCE")) {
770 unsigned int value = atoi(getenv("INTEL_STRICT_CONFORMANCE"));
772 intel->conformance_mode = value;
775 intel->conformance_mode = 1;
779 if (intel->conformance_mode > 0) {
780 ctx->Const.MinLineWidth = 1.0;
781 ctx->Const.MinLineWidthAA = 1.0;
782 ctx->Const.MaxLineWidth = 1.0;
783 ctx->Const.MaxLineWidthAA = 1.0;
784 ctx->Const.LineWidthGranularity = 1.0;
787 ctx->Const.MinLineWidth = 1.0;
788 ctx->Const.MinLineWidthAA = 1.0;
789 ctx->Const.MaxLineWidth = 5.0;
790 ctx->Const.MaxLineWidthAA = 5.0;
791 ctx->Const.LineWidthGranularity = 0.5;
794 ctx->Const.MinPointSize = 1.0;
795 ctx->Const.MinPointSizeAA = 1.0;
796 ctx->Const.MaxPointSize = 255.0;
797 ctx->Const.MaxPointSizeAA = 3.0;
798 ctx->Const.PointSizeGranularity = 1.0;
800 ctx->Const.MaxSamples = 1.0;
802 /* reinitialize the context point state.
803 * It depend on constants in __struct gl_contextRec::Const
805 _mesa_init_point(ctx);
807 if (intel->gen >= 4) {
808 ctx->Const.sRGBCapable = GL_TRUE;
809 if (MAX_WIDTH > 8192)
810 ctx->Const.MaxRenderbufferSize = 8192;
812 if (MAX_WIDTH > 2048)
813 ctx->Const.MaxRenderbufferSize = 2048;
816 /* Initialize the software rasterizer and helper modules. */
817 _swrast_CreateContext(ctx);
818 _vbo_CreateContext(ctx);
819 _tnl_CreateContext(ctx);
820 _swsetup_CreateContext(ctx);
822 /* Configure swrast to match hardware characteristics: */
823 _swrast_allow_pixel_fog(ctx, GL_FALSE);
824 _swrast_allow_vertex_fog(ctx, GL_TRUE);
826 _mesa_meta_init(ctx);
828 intel->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24;
829 intel->hw_stipple = 1;
831 /* XXX FBO: this doesn't seem to be used anywhere */
832 switch (mesaVis->depthBits) {
833 case 0: /* what to do in this case? */
835 intel->polygon_offset_scale = 1.0;
838 intel->polygon_offset_scale = 2.0; /* req'd to pass glean */
846 intel->polygon_offset_scale /= 0xffff;
848 intel->RenderIndex = ~0;
852 intelInitExtensions(ctx);
857 intelInitExtensionsES2(ctx);
861 INTEL_DEBUG = driParseDebugString(getenv("INTEL_DEBUG"), debug_control);
862 if (INTEL_DEBUG & DEBUG_BUFMGR)
863 dri_bufmgr_set_debug(intel->bufmgr, GL_TRUE);
865 intel_batchbuffer_reset(intel);
867 intel_fbo_init(intel);
869 if (intel->ctx.Mesa_DXTn) {
870 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
871 _mesa_enable_extension(ctx, "GL_S3_s3tc");
873 else if (driQueryOptionb(&intel->optionCache, "force_s3tc_enable")) {
874 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
876 intel->use_texture_tiling = driQueryOptionb(&intel->optionCache,
878 intel->use_early_z = driQueryOptionb(&intel->optionCache, "early_z");
880 intel->prim.primitive = ~0;
882 /* Force all software fallbacks */
883 if (driQueryOptionb(&intel->optionCache, "no_rast")) {
884 fprintf(stderr, "disabling 3D rasterization\n");
888 if (driQueryOptionb(&intel->optionCache, "always_flush_batch")) {
889 fprintf(stderr, "flushing batchbuffer before/after each draw call\n");
890 intel->always_flush_batch = 1;
893 if (driQueryOptionb(&intel->optionCache, "always_flush_cache")) {
894 fprintf(stderr, "flushing GPU caches before/after each draw call\n");
895 intel->always_flush_cache = 1;
902 intelDestroyContext(__DRIcontext * driContextPriv)
904 struct intel_context *intel =
905 (struct intel_context *) driContextPriv->driverPrivate;
907 assert(intel); /* should never be null */
909 INTEL_FIREVERTICES(intel);
911 _mesa_meta_free(&intel->ctx);
913 intel->vtbl.destroy(intel);
915 _swsetup_DestroyContext(&intel->ctx);
916 _tnl_DestroyContext(&intel->ctx);
917 _vbo_DestroyContext(&intel->ctx);
919 _swrast_DestroyContext(&intel->ctx);
920 intel->Fallback = 0x0; /* don't call _swrast_Flush later */
922 intel_batchbuffer_free(intel);
924 free(intel->prim.vb);
925 intel->prim.vb = NULL;
926 drm_intel_bo_unreference(intel->prim.vb_bo);
927 intel->prim.vb_bo = NULL;
929 driDestroyOptionCache(&intel->optionCache);
931 /* free the Mesa context */
932 _mesa_free_context_data(&intel->ctx);
935 driContextPriv->driverPrivate = NULL;
940 intelUnbindContext(__DRIcontext * driContextPriv)
942 /* Unset current context and dispath table */
943 _mesa_make_current(NULL, NULL, NULL);
949 intelMakeCurrent(__DRIcontext * driContextPriv,
950 __DRIdrawable * driDrawPriv,
951 __DRIdrawable * driReadPriv)
953 struct intel_context *intel;
954 GET_CURRENT_CONTEXT(curCtx);
957 intel = (struct intel_context *) driContextPriv->driverPrivate;
961 /* According to the glXMakeCurrent() man page: "Pending commands to
962 * the previous context, if any, are flushed before it is released."
963 * But only flush if we're actually changing contexts.
965 if (intel_context(curCtx) && intel_context(curCtx) != intel) {
969 if (driContextPriv) {
970 struct gl_framebuffer *fb, *readFb;
972 if (driDrawPriv == NULL && driReadPriv == NULL) {
973 fb = _mesa_get_incomplete_framebuffer();
974 readFb = _mesa_get_incomplete_framebuffer();
976 fb = driDrawPriv->driverPrivate;
977 readFb = driReadPriv->driverPrivate;
978 driContextPriv->dri2.draw_stamp = driDrawPriv->dri2.stamp - 1;
979 driContextPriv->dri2.read_stamp = driReadPriv->dri2.stamp - 1;
982 intel_prepare_render(intel);
983 _mesa_make_current(&intel->ctx, fb, readFb);
985 /* We do this in intel_prepare_render() too, but intel->ctx.DrawBuffer
986 * is NULL at that point. We can't call _mesa_makecurrent()
987 * first, since we need the buffer size for the initial
988 * viewport. So just call intel_draw_buffer() again here. */
989 intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer);
992 _mesa_make_current(NULL, NULL, NULL);