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/framebuffer.h"
32 #include "main/renderbuffer.h"
33 #include "main/hash.h"
34 #include "main/fbobject.h"
35 #include "main/mfeatures.h"
40 PUBLIC const char __driConfigOptions[] =
42 DRI_CONF_SECTION_PERFORMANCE
43 DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_ALWAYS_SYNC)
44 /* Options correspond to DRI_CONF_BO_REUSE_DISABLED,
45 * DRI_CONF_BO_REUSE_ALL
47 DRI_CONF_OPT_BEGIN_V(bo_reuse, enum, 1, "0:1")
48 DRI_CONF_DESC_BEGIN(en, "Buffer object reuse")
49 DRI_CONF_ENUM(0, "Disable buffer object reuse")
50 DRI_CONF_ENUM(1, "Enable reuse of all sizes of buffer objects")
54 DRI_CONF_OPT_BEGIN(texture_tiling, bool, true)
55 DRI_CONF_DESC(en, "Enable texture tiling")
58 DRI_CONF_OPT_BEGIN(early_z, bool, false)
59 DRI_CONF_DESC(en, "Enable early Z in classic mode (unstable, 945-only).")
62 DRI_CONF_OPT_BEGIN(fragment_shader, bool, true)
63 DRI_CONF_DESC(en, "Enable limited ARB_fragment_shader support on 915/945.")
67 DRI_CONF_SECTION_QUALITY
68 DRI_CONF_FORCE_S3TC_ENABLE(false)
69 DRI_CONF_ALLOW_LARGE_TEXTURES(2)
71 DRI_CONF_SECTION_DEBUG
72 DRI_CONF_NO_RAST(false)
73 DRI_CONF_ALWAYS_FLUSH_BATCH(false)
74 DRI_CONF_ALWAYS_FLUSH_CACHE(false)
76 DRI_CONF_OPT_BEGIN(stub_occlusion_query, bool, false)
77 DRI_CONF_DESC(en, "Enable stub ARB_occlusion_query support on 915/945.")
82 const GLuint __driNConfigOptions = 11;
84 #include "intel_batchbuffer.h"
85 #include "intel_buffers.h"
86 #include "intel_bufmgr.h"
87 #include "intel_chipset.h"
88 #include "intel_fbo.h"
89 #include "intel_screen.h"
90 #include "intel_tex.h"
91 #include "intel_regions.h"
95 #ifdef USE_NEW_INTERFACE
96 static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
97 #endif /*USE_NEW_INTERFACE */
99 static const __DRItexBufferExtension intelTexBufferExtension = {
100 { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
106 intelDRI2Flush(__DRIdrawable *drawable)
108 GET_CURRENT_CONTEXT(ctx);
109 struct intel_context *intel = intel_context(ctx);
112 INTEL_FIREVERTICES(intel);
114 intel->need_throttle = GL_TRUE;
116 if (intel->batch.used)
117 intel_batchbuffer_flush(intel);
120 static const struct __DRI2flushExtensionRec intelFlushExtension = {
121 { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },
123 dri2InvalidateDrawable,
127 intel_create_image_from_name(__DRIscreen *screen,
128 int width, int height, int format,
129 int name, int pitch, void *loaderPrivate)
131 struct intel_screen *intelScreen = screen->private;
135 image = CALLOC(sizeof *image);
140 case __DRI_IMAGE_FORMAT_RGB565:
141 image->format = MESA_FORMAT_RGB565;
142 image->internal_format = GL_RGB;
143 image->data_type = GL_UNSIGNED_BYTE;
145 case __DRI_IMAGE_FORMAT_XRGB8888:
146 image->format = MESA_FORMAT_XRGB8888;
147 image->internal_format = GL_RGB;
148 image->data_type = GL_UNSIGNED_BYTE;
150 case __DRI_IMAGE_FORMAT_ARGB8888:
151 image->format = MESA_FORMAT_ARGB8888;
152 image->internal_format = GL_RGBA;
153 image->data_type = GL_UNSIGNED_BYTE;
160 image->data = loaderPrivate;
161 cpp = _mesa_get_format_bytes(image->format);
163 image->region = intel_region_alloc_for_handle(intelScreen,
165 pitch, name, "image");
166 if (image->region == NULL) {
175 intel_create_image_from_renderbuffer(__DRIcontext *context,
176 int renderbuffer, void *loaderPrivate)
179 struct intel_context *intel = context->driverPrivate;
180 struct gl_renderbuffer *rb;
181 struct intel_renderbuffer *irb;
183 rb = _mesa_lookup_renderbuffer(&intel->ctx, renderbuffer);
185 _mesa_error(&intel->ctx,
186 GL_INVALID_OPERATION, "glRenderbufferExternalMESA");
190 irb = intel_renderbuffer(rb);
191 image = CALLOC(sizeof *image);
195 image->internal_format = rb->InternalFormat;
196 image->format = rb->Format;
197 image->data_type = rb->DataType;
198 image->data = loaderPrivate;
199 intel_region_reference(&image->region, irb->region);
205 intel_destroy_image(__DRIimage *image)
207 intel_region_release(&image->region);
212 intel_create_image(__DRIscreen *screen,
213 int width, int height, int format,
218 struct intel_screen *intelScreen = screen->private;
222 tiling = I915_TILING_X;
223 if (use & __DRI_IMAGE_USE_CURSOR) {
224 if (width != 64 || height != 64)
226 tiling = I915_TILING_NONE;
229 image = CALLOC(sizeof *image);
234 case __DRI_IMAGE_FORMAT_RGB565:
235 image->format = MESA_FORMAT_RGB565;
236 image->internal_format = GL_RGB;
237 image->data_type = GL_UNSIGNED_BYTE;
239 case __DRI_IMAGE_FORMAT_XRGB8888:
240 image->format = MESA_FORMAT_XRGB8888;
241 image->internal_format = GL_RGB;
242 image->data_type = GL_UNSIGNED_BYTE;
244 case __DRI_IMAGE_FORMAT_ARGB8888:
245 image->format = MESA_FORMAT_ARGB8888;
246 image->internal_format = GL_RGBA;
247 image->data_type = GL_UNSIGNED_BYTE;
254 image->data = loaderPrivate;
255 cpp = _mesa_get_format_bytes(image->format);
258 intel_region_alloc(intelScreen, tiling,
259 cpp, width, height, GL_TRUE);
260 if (image->region == NULL) {
269 intel_query_image(__DRIimage *image, int attrib, int *value)
272 case __DRI_IMAGE_ATTRIB_STRIDE:
273 *value = image->region->pitch * image->region->cpp;
275 case __DRI_IMAGE_ATTRIB_HANDLE:
276 *value = image->region->buffer->handle;
278 case __DRI_IMAGE_ATTRIB_NAME:
279 return intel_region_flink(image->region, (uint32_t *) value);
285 static struct __DRIimageExtensionRec intelImageExtension = {
286 { __DRI_IMAGE, __DRI_IMAGE_VERSION },
287 intel_create_image_from_name,
288 intel_create_image_from_renderbuffer,
294 static const __DRIextension *intelScreenExtensions[] = {
295 &driReadDrawableExtension,
296 &intelTexBufferExtension.base,
297 &intelFlushExtension.base,
298 &intelImageExtension.base,
299 &dri2ConfigQueryExtension.base,
304 intel_get_param(__DRIscreen *psp, int param, int *value)
307 struct drm_i915_getparam gp;
312 ret = drmCommandWriteRead(psp->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
315 _mesa_warning(NULL, "drm_i915_getparam: %d", ret);
323 intel_get_boolean(__DRIscreen *psp, int param)
326 return intel_get_param(psp, param, &value) && value;
330 nop_callback(GLuint key, void *data, void *userData)
335 intelDestroyScreen(__DRIscreen * sPriv)
337 struct intel_screen *intelScreen = sPriv->private;
339 dri_bufmgr_destroy(intelScreen->bufmgr);
340 driDestroyOptionInfo(&intelScreen->optionCache);
342 /* Some regions may still have references to them at this point, so
343 * flush the hash table to prevent _mesa_DeleteHashTable() from
344 * complaining about the hash not being empty; */
345 _mesa_HashDeleteAll(intelScreen->named_regions, nop_callback, NULL);
346 _mesa_DeleteHashTable(intelScreen->named_regions);
349 sPriv->private = NULL;
354 * This is called when we need to set up GL rendering to a new X window.
357 intelCreateBuffer(__DRIscreen * driScrnPriv,
358 __DRIdrawable * driDrawPriv,
359 const struct gl_config * mesaVis, GLboolean isPixmap)
361 struct intel_renderbuffer *rb;
364 return GL_FALSE; /* not implemented */
367 GLboolean swStencil = (mesaVis->stencilBits > 0 &&
368 mesaVis->depthBits != 24);
371 struct gl_framebuffer *fb = CALLOC_STRUCT(gl_framebuffer);
376 _mesa_initialize_window_framebuffer(fb, mesaVis);
378 if (mesaVis->redBits == 5)
379 rgbFormat = MESA_FORMAT_RGB565;
380 else if (mesaVis->alphaBits == 0)
381 rgbFormat = MESA_FORMAT_XRGB8888;
383 rgbFormat = MESA_FORMAT_ARGB8888;
385 /* setup the hardware-based renderbuffers */
386 rb = intel_create_renderbuffer(rgbFormat);
387 _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &rb->Base);
389 if (mesaVis->doubleBufferMode) {
390 rb = intel_create_renderbuffer(rgbFormat);
391 _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &rb->Base);
394 if (mesaVis->depthBits == 24) {
395 assert(mesaVis->stencilBits == 8);
396 /* combined depth/stencil buffer */
397 struct intel_renderbuffer *depthStencilRb
398 = intel_create_renderbuffer(MESA_FORMAT_S8_Z24);
399 /* note: bind RB to two attachment points */
400 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthStencilRb->Base);
401 _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &depthStencilRb->Base);
403 else if (mesaVis->depthBits == 16) {
404 /* just 16-bit depth buffer, no hw stencil */
405 struct intel_renderbuffer *depthRb
406 = intel_create_renderbuffer(MESA_FORMAT_Z16);
407 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
410 /* now add any/all software-based renderbuffers we may need */
411 _mesa_add_soft_renderbuffers(fb,
412 GL_FALSE, /* never sw color */
413 GL_FALSE, /* never sw depth */
414 swStencil, mesaVis->accumRedBits > 0,
415 GL_FALSE, /* never sw alpha */
416 GL_FALSE /* never sw aux */ );
417 driDrawPriv->driverPrivate = fb;
424 intelDestroyBuffer(__DRIdrawable * driDrawPriv)
426 struct gl_framebuffer *fb = driDrawPriv->driverPrivate;
428 _mesa_reference_framebuffer(&fb, NULL);
431 /* There are probably better ways to do this, such as an
432 * init-designated function to register chipids and createcontext
435 extern GLboolean i830CreateContext(const struct gl_config * mesaVis,
436 __DRIcontext * driContextPriv,
437 void *sharedContextPrivate);
439 extern GLboolean i915CreateContext(int api,
440 const struct gl_config * mesaVis,
441 __DRIcontext * driContextPriv,
442 void *sharedContextPrivate);
443 extern GLboolean brwCreateContext(int api,
444 const struct gl_config * mesaVis,
445 __DRIcontext * driContextPriv,
446 void *sharedContextPrivate);
449 intelCreateContext(gl_api api,
450 const struct gl_config * mesaVis,
451 __DRIcontext * driContextPriv,
452 void *sharedContextPrivate)
454 __DRIscreen *sPriv = driContextPriv->driScreenPriv;
455 struct intel_screen *intelScreen = sPriv->private;
458 if (IS_9XX(intelScreen->deviceID)) {
459 if (!IS_965(intelScreen->deviceID)) {
460 return i915CreateContext(api, mesaVis, driContextPriv,
461 sharedContextPrivate);
464 intelScreen->no_vbo = GL_TRUE;
465 return i830CreateContext(mesaVis, driContextPriv, sharedContextPrivate);
468 if (IS_965(intelScreen->deviceID))
469 return brwCreateContext(api, mesaVis,
470 driContextPriv, sharedContextPrivate);
472 fprintf(stderr, "Unrecognized deviceID 0x%x\n", intelScreen->deviceID);
477 intel_init_bufmgr(struct intel_screen *intelScreen)
479 __DRIscreen *spriv = intelScreen->driScrnPriv;
482 intelScreen->no_hw = (getenv("INTEL_NO_HW") != NULL ||
483 getenv("INTEL_DEVID_OVERRIDE") != NULL);
485 intelScreen->bufmgr = intel_bufmgr_gem_init(spriv->fd, BATCH_SZ);
486 if (intelScreen->bufmgr == NULL) {
487 fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n",
492 if (!intel_get_param(spriv, I915_PARAM_NUM_FENCES_AVAIL, &num_fences) ||
494 fprintf(stderr, "[%s: %u] Kernel 2.6.29 required.\n", __func__, __LINE__);
498 drm_intel_bufmgr_gem_enable_fenced_relocs(intelScreen->bufmgr);
500 intelScreen->named_regions = _mesa_NewHashTable();
502 intelScreen->relaxed_relocations = 0;
503 intelScreen->relaxed_relocations |=
504 intel_get_boolean(spriv, I915_PARAM_HAS_RELAXED_DELTA) << 0;
510 * This is the driver specific part of the createNewScreen entry point.
511 * Called when using DRI2.
513 * \return the struct gl_config supported by this driver
516 __DRIconfig **intelInitScreen2(__DRIscreen *psp)
518 struct intel_screen *intelScreen;
521 unsigned int api_mask;
522 char *devid_override;
524 static const GLenum back_buffer_modes[] = {
525 GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
527 uint8_t depth_bits[4], stencil_bits[4], msaa_samples_array[1];
529 __DRIconfig **configs = NULL;
531 /* Allocate the private area */
532 intelScreen = CALLOC(sizeof *intelScreen);
534 fprintf(stderr, "\nERROR! Allocating private area failed\n");
537 /* parse information in __driConfigOptions */
538 driParseOptionInfo(&intelScreen->optionCache,
539 __driConfigOptions, __driNConfigOptions);
541 intelScreen->driScrnPriv = psp;
542 psp->private = (void *) intelScreen;
544 /* Determine chipset ID */
545 if (!intel_get_param(psp, I915_PARAM_CHIPSET_ID,
546 &intelScreen->deviceID))
549 /* Allow an override of the device ID for the purpose of making the
550 * driver produce dumps for debugging of new chipset enablement.
551 * This implies INTEL_NO_HW, to avoid programming your actual GPU
554 devid_override = getenv("INTEL_DEVID_OVERRIDE");
555 if (devid_override) {
556 intelScreen->deviceID = strtod(devid_override, NULL);
559 if (IS_GEN7(intelScreen->deviceID)) {
560 intelScreen->gen = 7;
561 } else if (IS_GEN6(intelScreen->deviceID)) {
562 intelScreen->gen = 6;
563 } else if (IS_GEN5(intelScreen->deviceID)) {
564 intelScreen->gen = 5;
565 } else if (IS_965(intelScreen->deviceID)) {
566 intelScreen->gen = 4;
567 } else if (IS_9XX(intelScreen->deviceID)) {
568 intelScreen->gen = 3;
570 intelScreen->gen = 2;
573 api_mask = (1 << __DRI_API_OPENGL);
575 api_mask |= (1 << __DRI_API_GLES);
578 api_mask |= (1 << __DRI_API_GLES2);
581 if (IS_9XX(intelScreen->deviceID) || IS_965(intelScreen->deviceID))
582 psp->api_mask = api_mask;
584 if (!intel_init_bufmgr(intelScreen))
587 psp->extensions = intelScreenExtensions;
589 msaa_samples_array[0] = 0;
591 fb_format[0] = GL_RGB;
592 fb_type[0] = GL_UNSIGNED_SHORT_5_6_5;
594 fb_format[1] = GL_BGR;
595 fb_type[1] = GL_UNSIGNED_INT_8_8_8_8_REV;
597 fb_format[2] = GL_BGRA;
598 fb_type[2] = GL_UNSIGNED_INT_8_8_8_8_REV;
603 /* Generate a rich set of useful configs that do not include an
604 * accumulation buffer.
606 for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
607 __DRIconfig **new_configs;
610 /* Starting with DRI2 protocol version 1.1 we can request a depth/stencil
611 * buffer that has a diffferent number of bits per pixel than the color
612 * buffer. This isn't yet supported here.
614 if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
624 new_configs = driCreateConfigs(fb_format[color], fb_type[color],
629 ARRAY_SIZE(back_buffer_modes),
631 ARRAY_SIZE(msaa_samples_array),
634 configs = new_configs;
636 configs = driConcatConfigs(configs, new_configs);
639 /* Generate the minimum possible set of configs that include an
640 * accumulation buffer.
642 for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
643 __DRIconfig **new_configs;
645 if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
653 new_configs = driCreateConfigs(fb_format[color], fb_type[color],
654 depth_bits, stencil_bits, 1,
655 back_buffer_modes + 1, 1,
656 msaa_samples_array, 1,
659 configs = new_configs;
661 configs = driConcatConfigs(configs, new_configs);
664 if (configs == NULL) {
665 fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
670 return (const __DRIconfig **)configs;
673 struct intel_buffer {
675 struct intel_region *region;
679 intelAllocateBuffer(__DRIscreen *screen,
680 unsigned attachment, unsigned format,
681 int width, int height)
683 struct intel_buffer *intelBuffer;
684 struct intel_screen *intelScreen = screen->private;
687 intelBuffer = CALLOC(sizeof *intelBuffer);
688 if (intelBuffer == NULL)
691 if ((attachment == __DRI_BUFFER_DEPTH ||
692 attachment == __DRI_BUFFER_STENCIL ||
693 attachment == __DRI_BUFFER_DEPTH_STENCIL) &&
694 intelScreen->gen >= 4)
695 tiling = I915_TILING_Y;
697 tiling = I915_TILING_X;
699 intelBuffer->region = intel_region_alloc(intelScreen, tiling,
700 format / 8, width, height, GL_TRUE);
702 if (intelBuffer->region == NULL) {
707 intel_region_flink(intelBuffer->region, &intelBuffer->base.name);
709 intelBuffer->base.attachment = attachment;
710 intelBuffer->base.cpp = intelBuffer->region->cpp;
711 intelBuffer->base.pitch =
712 intelBuffer->region->pitch * intelBuffer->region->cpp;
714 return &intelBuffer->base;
718 intelReleaseBuffer(__DRIscreen *screen, __DRIbuffer *buffer)
720 struct intel_buffer *intelBuffer = (struct intel_buffer *) buffer;
722 intel_region_release(&intelBuffer->region);
727 const struct __DriverAPIRec driDriverAPI = {
728 .DestroyScreen = intelDestroyScreen,
729 .CreateContext = intelCreateContext,
730 .DestroyContext = intelDestroyContext,
731 .CreateBuffer = intelCreateBuffer,
732 .DestroyBuffer = intelDestroyBuffer,
733 .MakeCurrent = intelMakeCurrent,
734 .UnbindContext = intelUnbindContext,
735 .InitScreen2 = intelInitScreen2,
736 .AllocateBuffer = intelAllocateBuffer,
737 .ReleaseBuffer = intelReleaseBuffer
740 /* This is the table of extensions that the loader will dlsym() for. */
741 PUBLIC const __DRIextension *__driDriverExtensions[] = {
742 &driCoreExtension.base,
743 &driDRI2Extension.base,