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;
221 image = CALLOC(sizeof *image);
226 case __DRI_IMAGE_FORMAT_RGB565:
227 image->format = MESA_FORMAT_RGB565;
228 image->internal_format = GL_RGB;
229 image->data_type = GL_UNSIGNED_BYTE;
231 case __DRI_IMAGE_FORMAT_XRGB8888:
232 image->format = MESA_FORMAT_XRGB8888;
233 image->internal_format = GL_RGB;
234 image->data_type = GL_UNSIGNED_BYTE;
236 case __DRI_IMAGE_FORMAT_ARGB8888:
237 image->format = MESA_FORMAT_ARGB8888;
238 image->internal_format = GL_RGBA;
239 image->data_type = GL_UNSIGNED_BYTE;
246 image->data = loaderPrivate;
247 cpp = _mesa_get_format_bytes(image->format);
250 intel_region_alloc(intelScreen, I915_TILING_NONE,
251 cpp, width, height, GL_TRUE);
252 if (image->region == NULL) {
261 intel_query_image(__DRIimage *image, int attrib, int *value)
264 case __DRI_IMAGE_ATTRIB_STRIDE:
265 *value = image->region->pitch * image->region->cpp;
267 case __DRI_IMAGE_ATTRIB_HANDLE:
268 *value = image->region->buffer->handle;
270 case __DRI_IMAGE_ATTRIB_NAME:
271 return intel_region_flink(image->region, (uint32_t *) value);
277 static struct __DRIimageExtensionRec intelImageExtension = {
278 { __DRI_IMAGE, __DRI_IMAGE_VERSION },
279 intel_create_image_from_name,
280 intel_create_image_from_renderbuffer,
286 static const __DRIextension *intelScreenExtensions[] = {
287 &driReadDrawableExtension,
288 &intelTexBufferExtension.base,
289 &intelFlushExtension.base,
290 &intelImageExtension.base,
291 &dri2ConfigQueryExtension.base,
296 intel_get_param(__DRIscreen *psp, int param, int *value)
299 struct drm_i915_getparam gp;
304 ret = drmCommandWriteRead(psp->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
307 _mesa_warning(NULL, "drm_i915_getparam: %d", ret);
315 intel_get_boolean(__DRIscreen *psp, int param)
318 return intel_get_param(psp, param, &value) && value;
322 nop_callback(GLuint key, void *data, void *userData)
327 intelDestroyScreen(__DRIscreen * sPriv)
329 struct intel_screen *intelScreen = sPriv->private;
331 dri_bufmgr_destroy(intelScreen->bufmgr);
332 driDestroyOptionInfo(&intelScreen->optionCache);
334 /* Some regions may still have references to them at this point, so
335 * flush the hash table to prevent _mesa_DeleteHashTable() from
336 * complaining about the hash not being empty; */
337 _mesa_HashDeleteAll(intelScreen->named_regions, nop_callback, NULL);
338 _mesa_DeleteHashTable(intelScreen->named_regions);
341 sPriv->private = NULL;
346 * This is called when we need to set up GL rendering to a new X window.
349 intelCreateBuffer(__DRIscreen * driScrnPriv,
350 __DRIdrawable * driDrawPriv,
351 const struct gl_config * mesaVis, GLboolean isPixmap)
353 struct intel_renderbuffer *rb;
356 return GL_FALSE; /* not implemented */
359 GLboolean swStencil = (mesaVis->stencilBits > 0 &&
360 mesaVis->depthBits != 24);
363 struct gl_framebuffer *fb = CALLOC_STRUCT(gl_framebuffer);
368 _mesa_initialize_window_framebuffer(fb, mesaVis);
370 if (mesaVis->redBits == 5)
371 rgbFormat = MESA_FORMAT_RGB565;
372 else if (mesaVis->alphaBits == 0)
373 rgbFormat = MESA_FORMAT_XRGB8888;
375 rgbFormat = MESA_FORMAT_ARGB8888;
377 /* setup the hardware-based renderbuffers */
378 rb = intel_create_renderbuffer(rgbFormat);
379 _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &rb->Base);
381 if (mesaVis->doubleBufferMode) {
382 rb = intel_create_renderbuffer(rgbFormat);
383 _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &rb->Base);
386 if (mesaVis->depthBits == 24) {
387 assert(mesaVis->stencilBits == 8);
388 /* combined depth/stencil buffer */
389 struct intel_renderbuffer *depthStencilRb
390 = intel_create_renderbuffer(MESA_FORMAT_S8_Z24);
391 /* note: bind RB to two attachment points */
392 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthStencilRb->Base);
393 _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &depthStencilRb->Base);
395 else if (mesaVis->depthBits == 16) {
396 /* just 16-bit depth buffer, no hw stencil */
397 struct intel_renderbuffer *depthRb
398 = intel_create_renderbuffer(MESA_FORMAT_Z16);
399 _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
402 /* now add any/all software-based renderbuffers we may need */
403 _mesa_add_soft_renderbuffers(fb,
404 GL_FALSE, /* never sw color */
405 GL_FALSE, /* never sw depth */
406 swStencil, mesaVis->accumRedBits > 0,
407 GL_FALSE, /* never sw alpha */
408 GL_FALSE /* never sw aux */ );
409 driDrawPriv->driverPrivate = fb;
416 intelDestroyBuffer(__DRIdrawable * driDrawPriv)
418 struct gl_framebuffer *fb = driDrawPriv->driverPrivate;
420 _mesa_reference_framebuffer(&fb, NULL);
423 /* There are probably better ways to do this, such as an
424 * init-designated function to register chipids and createcontext
427 extern GLboolean i830CreateContext(const struct gl_config * mesaVis,
428 __DRIcontext * driContextPriv,
429 void *sharedContextPrivate);
431 extern GLboolean i915CreateContext(int api,
432 const struct gl_config * mesaVis,
433 __DRIcontext * driContextPriv,
434 void *sharedContextPrivate);
435 extern GLboolean brwCreateContext(int api,
436 const struct gl_config * mesaVis,
437 __DRIcontext * driContextPriv,
438 void *sharedContextPrivate);
441 intelCreateContext(gl_api api,
442 const struct gl_config * mesaVis,
443 __DRIcontext * driContextPriv,
444 void *sharedContextPrivate)
446 __DRIscreen *sPriv = driContextPriv->driScreenPriv;
447 struct intel_screen *intelScreen = sPriv->private;
450 if (IS_9XX(intelScreen->deviceID)) {
451 if (!IS_965(intelScreen->deviceID)) {
452 return i915CreateContext(api, mesaVis, driContextPriv,
453 sharedContextPrivate);
456 intelScreen->no_vbo = GL_TRUE;
457 return i830CreateContext(mesaVis, driContextPriv, sharedContextPrivate);
460 if (IS_965(intelScreen->deviceID))
461 return brwCreateContext(api, mesaVis,
462 driContextPriv, sharedContextPrivate);
464 fprintf(stderr, "Unrecognized deviceID 0x%x\n", intelScreen->deviceID);
469 intel_init_bufmgr(struct intel_screen *intelScreen)
471 __DRIscreen *spriv = intelScreen->driScrnPriv;
474 intelScreen->no_hw = (getenv("INTEL_NO_HW") != NULL ||
475 getenv("INTEL_DEVID_OVERRIDE") != NULL);
477 intelScreen->bufmgr = intel_bufmgr_gem_init(spriv->fd, BATCH_SZ);
478 if (intelScreen->bufmgr == NULL) {
479 fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n",
484 if (!intel_get_param(spriv, I915_PARAM_NUM_FENCES_AVAIL, &num_fences) ||
486 fprintf(stderr, "[%s: %u] Kernel 2.6.29 required.\n", __func__, __LINE__);
490 drm_intel_bufmgr_gem_enable_fenced_relocs(intelScreen->bufmgr);
492 intelScreen->named_regions = _mesa_NewHashTable();
494 intelScreen->relaxed_relocations = 0;
495 intelScreen->relaxed_relocations |=
496 intel_get_boolean(spriv, I915_PARAM_HAS_RELAXED_DELTA) << 0;
502 * This is the driver specific part of the createNewScreen entry point.
503 * Called when using DRI2.
505 * \return the struct gl_config supported by this driver
508 __DRIconfig **intelInitScreen2(__DRIscreen *psp)
510 struct intel_screen *intelScreen;
513 unsigned int api_mask;
514 char *devid_override;
516 static const GLenum back_buffer_modes[] = {
517 GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
519 uint8_t depth_bits[4], stencil_bits[4], msaa_samples_array[1];
521 __DRIconfig **configs = NULL;
523 /* Allocate the private area */
524 intelScreen = CALLOC(sizeof *intelScreen);
526 fprintf(stderr, "\nERROR! Allocating private area failed\n");
529 /* parse information in __driConfigOptions */
530 driParseOptionInfo(&intelScreen->optionCache,
531 __driConfigOptions, __driNConfigOptions);
533 intelScreen->driScrnPriv = psp;
534 psp->private = (void *) intelScreen;
536 /* Determine chipset ID */
537 if (!intel_get_param(psp, I915_PARAM_CHIPSET_ID,
538 &intelScreen->deviceID))
541 /* Allow an override of the device ID for the purpose of making the
542 * driver produce dumps for debugging of new chipset enablement.
543 * This implies INTEL_NO_HW, to avoid programming your actual GPU
546 devid_override = getenv("INTEL_DEVID_OVERRIDE");
547 if (devid_override) {
548 intelScreen->deviceID = strtod(devid_override, NULL);
551 api_mask = (1 << __DRI_API_OPENGL);
553 api_mask |= (1 << __DRI_API_GLES);
556 api_mask |= (1 << __DRI_API_GLES2);
559 if (IS_9XX(intelScreen->deviceID) || IS_965(intelScreen->deviceID))
560 psp->api_mask = api_mask;
562 if (!intel_init_bufmgr(intelScreen))
565 psp->extensions = intelScreenExtensions;
567 msaa_samples_array[0] = 0;
569 fb_format[0] = GL_RGB;
570 fb_type[0] = GL_UNSIGNED_SHORT_5_6_5;
572 fb_format[1] = GL_BGR;
573 fb_type[1] = GL_UNSIGNED_INT_8_8_8_8_REV;
575 fb_format[2] = GL_BGRA;
576 fb_type[2] = GL_UNSIGNED_INT_8_8_8_8_REV;
581 /* Generate a rich set of useful configs that do not include an
582 * accumulation buffer.
584 for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
585 __DRIconfig **new_configs;
588 /* Starting with DRI2 protocol version 1.1 we can request a depth/stencil
589 * buffer that has a diffferent number of bits per pixel than the color
590 * buffer. This isn't yet supported here.
592 if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
602 new_configs = driCreateConfigs(fb_format[color], fb_type[color],
607 ARRAY_SIZE(back_buffer_modes),
609 ARRAY_SIZE(msaa_samples_array),
612 configs = new_configs;
614 configs = driConcatConfigs(configs, new_configs);
617 /* Generate the minimum possible set of configs that include an
618 * accumulation buffer.
620 for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
621 __DRIconfig **new_configs;
623 if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
631 new_configs = driCreateConfigs(fb_format[color], fb_type[color],
632 depth_bits, stencil_bits, 1,
633 back_buffer_modes + 1, 1,
634 msaa_samples_array, 1,
637 configs = new_configs;
639 configs = driConcatConfigs(configs, new_configs);
642 if (configs == NULL) {
643 fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
648 return (const __DRIconfig **)configs;
651 struct intel_buffer {
653 struct intel_region *region;
657 intelAllocateBuffer(__DRIscreen *screen,
658 unsigned attachment, unsigned format,
659 int width, int height)
661 struct intel_buffer *intelBuffer;
662 struct intel_screen *intelScreen = screen->private;
664 intelBuffer = CALLOC(sizeof *intelBuffer);
665 if (intelBuffer == NULL)
668 intelBuffer->region = intel_region_alloc(intelScreen, I915_TILING_NONE,
669 format / 8, width, height, GL_TRUE);
671 if (intelBuffer->region == NULL) {
676 intel_region_flink(intelBuffer->region, &intelBuffer->base.name);
678 intelBuffer->base.attachment = attachment;
679 intelBuffer->base.cpp = intelBuffer->region->cpp;
680 intelBuffer->base.pitch =
681 intelBuffer->region->pitch * intelBuffer->region->cpp;
683 return &intelBuffer->base;
687 intelReleaseBuffer(__DRIscreen *screen, __DRIbuffer *buffer)
689 struct intel_buffer *intelBuffer = (struct intel_buffer *) buffer;
691 intel_region_release(&intelBuffer->region);
696 const struct __DriverAPIRec driDriverAPI = {
697 .DestroyScreen = intelDestroyScreen,
698 .CreateContext = intelCreateContext,
699 .DestroyContext = intelDestroyContext,
700 .CreateBuffer = intelCreateBuffer,
701 .DestroyBuffer = intelDestroyBuffer,
702 .MakeCurrent = intelMakeCurrent,
703 .UnbindContext = intelUnbindContext,
704 .InitScreen2 = intelInitScreen2,
705 .AllocateBuffer = intelAllocateBuffer,
706 .ReleaseBuffer = intelReleaseBuffer
709 /* This is the table of extensions that the loader will dlsym() for. */
710 PUBLIC const __DRIextension *__driDriverExtensions[] = {
711 &driCoreExtension.base,
712 &driDRI2Extension.base,