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_mipmap_tree.h"
90 #include "intel_screen.h"
91 #include "intel_tex.h"
92 #include "intel_regions.h"
96 #ifdef USE_NEW_INTERFACE
97 static PFNGLXCREATECONTEXTMODES create_context_modes
= NULL
;
98 #endif /*USE_NEW_INTERFACE */
100 static const __DRItexBufferExtension intelTexBufferExtension
= {
101 { __DRI_TEX_BUFFER
, __DRI_TEX_BUFFER_VERSION
},
107 intelDRI2Flush(__DRIdrawable
*drawable
)
109 GET_CURRENT_CONTEXT(ctx
);
110 struct intel_context
*intel
= intel_context(ctx
);
113 INTEL_FIREVERTICES(intel
);
115 intel
->need_throttle
= true;
117 if (intel
->batch
.used
)
118 intel_batchbuffer_flush(intel
);
121 static const struct __DRI2flushExtensionRec intelFlushExtension
= {
122 { __DRI2_FLUSH
, __DRI2_FLUSH_VERSION
},
124 dri2InvalidateDrawable
,
128 intel_create_image_from_name(__DRIscreen
*screen
,
129 int width
, int height
, int format
,
130 int name
, int pitch
, void *loaderPrivate
)
132 struct intel_screen
*intelScreen
= screen
->driverPrivate
;
136 image
= CALLOC(sizeof *image
);
141 case __DRI_IMAGE_FORMAT_RGB565
:
142 image
->format
= MESA_FORMAT_RGB565
;
143 image
->internal_format
= GL_RGB
;
144 image
->data_type
= GL_UNSIGNED_BYTE
;
146 case __DRI_IMAGE_FORMAT_XRGB8888
:
147 image
->format
= MESA_FORMAT_XRGB8888
;
148 image
->internal_format
= GL_RGB
;
149 image
->data_type
= GL_UNSIGNED_BYTE
;
151 case __DRI_IMAGE_FORMAT_ARGB8888
:
152 image
->format
= MESA_FORMAT_ARGB8888
;
153 image
->internal_format
= GL_RGBA
;
154 image
->data_type
= GL_UNSIGNED_BYTE
;
156 case __DRI_IMAGE_FORMAT_ABGR8888
:
157 image
->format
= MESA_FORMAT_RGBA8888_REV
;
158 image
->internal_format
= GL_RGBA
;
159 image
->data_type
= GL_UNSIGNED_BYTE
;
166 image
->data
= loaderPrivate
;
167 cpp
= _mesa_get_format_bytes(image
->format
);
169 image
->region
= intel_region_alloc_for_handle(intelScreen
,
171 pitch
, name
, "image");
172 if (image
->region
== NULL
) {
181 intel_create_image_from_renderbuffer(__DRIcontext
*context
,
182 int renderbuffer
, void *loaderPrivate
)
185 struct intel_context
*intel
= context
->driverPrivate
;
186 struct gl_renderbuffer
*rb
;
187 struct intel_renderbuffer
*irb
;
189 rb
= _mesa_lookup_renderbuffer(&intel
->ctx
, renderbuffer
);
191 _mesa_error(&intel
->ctx
,
192 GL_INVALID_OPERATION
, "glRenderbufferExternalMESA");
196 irb
= intel_renderbuffer(rb
);
197 image
= CALLOC(sizeof *image
);
201 image
->internal_format
= rb
->InternalFormat
;
202 image
->format
= rb
->Format
;
203 image
->data_type
= rb
->DataType
;
204 image
->data
= loaderPrivate
;
205 intel_region_reference(&image
->region
, irb
->mt
->region
);
211 intel_destroy_image(__DRIimage
*image
)
213 intel_region_release(&image
->region
);
218 intel_create_image(__DRIscreen
*screen
,
219 int width
, int height
, int format
,
224 struct intel_screen
*intelScreen
= screen
->driverPrivate
;
228 tiling
= I915_TILING_X
;
229 if (use
& __DRI_IMAGE_USE_CURSOR
) {
230 if (width
!= 64 || height
!= 64)
232 tiling
= I915_TILING_NONE
;
235 image
= CALLOC(sizeof *image
);
240 case __DRI_IMAGE_FORMAT_RGB565
:
241 image
->format
= MESA_FORMAT_RGB565
;
242 image
->internal_format
= GL_RGB
;
243 image
->data_type
= GL_UNSIGNED_BYTE
;
245 case __DRI_IMAGE_FORMAT_XRGB8888
:
246 image
->format
= MESA_FORMAT_XRGB8888
;
247 image
->internal_format
= GL_RGB
;
248 image
->data_type
= GL_UNSIGNED_BYTE
;
250 case __DRI_IMAGE_FORMAT_ARGB8888
:
251 image
->format
= MESA_FORMAT_ARGB8888
;
252 image
->internal_format
= GL_RGBA
;
253 image
->data_type
= GL_UNSIGNED_BYTE
;
255 case __DRI_IMAGE_FORMAT_ABGR8888
:
256 image
->format
= MESA_FORMAT_RGBA8888_REV
;
257 image
->internal_format
= GL_RGBA
;
258 image
->data_type
= GL_UNSIGNED_BYTE
;
265 image
->data
= loaderPrivate
;
266 cpp
= _mesa_get_format_bytes(image
->format
);
269 intel_region_alloc(intelScreen
, tiling
,
270 cpp
, width
, height
, true);
271 if (image
->region
== NULL
) {
280 intel_query_image(__DRIimage
*image
, int attrib
, int *value
)
283 case __DRI_IMAGE_ATTRIB_STRIDE
:
284 *value
= image
->region
->pitch
* image
->region
->cpp
;
286 case __DRI_IMAGE_ATTRIB_HANDLE
:
287 *value
= image
->region
->bo
->handle
;
289 case __DRI_IMAGE_ATTRIB_NAME
:
290 return intel_region_flink(image
->region
, (uint32_t *) value
);
297 intel_dup_image(__DRIimage
*orig_image
, void *loaderPrivate
)
301 image
= CALLOC(sizeof *image
);
305 intel_region_reference(&image
->region
, orig_image
->region
);
306 if (image
->region
== NULL
) {
311 image
->internal_format
= orig_image
->internal_format
;
312 image
->format
= orig_image
->format
;
313 image
->data_type
= orig_image
->data_type
;
314 image
->data
= loaderPrivate
;
319 static struct __DRIimageExtensionRec intelImageExtension
= {
320 { __DRI_IMAGE
, __DRI_IMAGE_VERSION
},
321 intel_create_image_from_name
,
322 intel_create_image_from_renderbuffer
,
329 static const __DRIextension
*intelScreenExtensions
[] = {
330 &intelTexBufferExtension
.base
,
331 &intelFlushExtension
.base
,
332 &intelImageExtension
.base
,
333 &dri2ConfigQueryExtension
.base
,
338 intel_get_param(__DRIscreen
*psp
, int param
, int *value
)
341 struct drm_i915_getparam gp
;
346 ret
= drmCommandWriteRead(psp
->fd
, DRM_I915_GETPARAM
, &gp
, sizeof(gp
));
349 _mesa_warning(NULL
, "drm_i915_getparam: %d", ret
);
357 intel_get_boolean(__DRIscreen
*psp
, int param
)
360 return intel_get_param(psp
, param
, &value
) && value
;
364 nop_callback(GLuint key
, void *data
, void *userData
)
369 intelDestroyScreen(__DRIscreen
* sPriv
)
371 struct intel_screen
*intelScreen
= sPriv
->driverPrivate
;
373 dri_bufmgr_destroy(intelScreen
->bufmgr
);
374 driDestroyOptionInfo(&intelScreen
->optionCache
);
376 /* Some regions may still have references to them at this point, so
377 * flush the hash table to prevent _mesa_DeleteHashTable() from
378 * complaining about the hash not being empty; */
379 _mesa_HashDeleteAll(intelScreen
->named_regions
, nop_callback
, NULL
);
380 _mesa_DeleteHashTable(intelScreen
->named_regions
);
383 sPriv
->driverPrivate
= NULL
;
388 * This is called when we need to set up GL rendering to a new X window.
391 intelCreateBuffer(__DRIscreen
* driScrnPriv
,
392 __DRIdrawable
* driDrawPriv
,
393 const struct gl_config
* mesaVis
, GLboolean isPixmap
)
395 struct intel_renderbuffer
*rb
;
396 struct intel_screen
*screen
= (struct intel_screen
*) driScrnPriv
->driverPrivate
;
399 return false; /* not implemented */
404 struct gl_framebuffer
*fb
= CALLOC_STRUCT(gl_framebuffer
);
409 _mesa_initialize_window_framebuffer(fb
, mesaVis
);
411 if (mesaVis
->redBits
== 5)
412 rgbFormat
= MESA_FORMAT_RGB565
;
413 else if (mesaVis
->alphaBits
== 0)
414 rgbFormat
= MESA_FORMAT_XRGB8888
;
416 rgbFormat
= MESA_FORMAT_ARGB8888
;
418 /* setup the hardware-based renderbuffers */
419 rb
= intel_create_renderbuffer(rgbFormat
);
420 _mesa_add_renderbuffer(fb
, BUFFER_FRONT_LEFT
, &rb
->Base
);
422 if (mesaVis
->doubleBufferMode
) {
423 rb
= intel_create_renderbuffer(rgbFormat
);
424 _mesa_add_renderbuffer(fb
, BUFFER_BACK_LEFT
, &rb
->Base
);
428 * Assert here that the gl_config has an expected depth/stencil bit
429 * combination: one of d24/s8, d16/s0, d0/s0. (See intelInitScreen2(),
430 * which constructs the advertised configs.)
432 if (mesaVis
->depthBits
== 24) {
433 assert(mesaVis
->stencilBits
== 8);
435 if (screen
->hw_has_separate_stencil
436 && screen
->dri2_has_hiz
!= INTEL_DRI2_HAS_HIZ_FALSE
) {
438 * Request a separate stencil buffer even if we do not yet know if
439 * the screen supports it. (See comments for
440 * enum intel_dri2_has_hiz).
442 rb
= intel_create_renderbuffer(MESA_FORMAT_X8_Z24
);
443 _mesa_add_renderbuffer(fb
, BUFFER_DEPTH
, &rb
->Base
);
444 rb
= intel_create_renderbuffer(MESA_FORMAT_S8
);
445 _mesa_add_renderbuffer(fb
, BUFFER_STENCIL
, &rb
->Base
);
448 * Use combined depth/stencil. Note that the renderbuffer is
449 * attached to two attachment points.
451 rb
= intel_create_renderbuffer(MESA_FORMAT_S8_Z24
);
452 _mesa_add_renderbuffer(fb
, BUFFER_DEPTH
, &rb
->Base
);
453 _mesa_add_renderbuffer(fb
, BUFFER_STENCIL
, &rb
->Base
);
456 else if (mesaVis
->depthBits
== 16) {
457 assert(mesaVis
->stencilBits
== 0);
458 /* just 16-bit depth buffer, no hw stencil */
459 struct intel_renderbuffer
*depthRb
460 = intel_create_renderbuffer(MESA_FORMAT_Z16
);
461 _mesa_add_renderbuffer(fb
, BUFFER_DEPTH
, &depthRb
->Base
);
464 assert(mesaVis
->depthBits
== 0);
465 assert(mesaVis
->stencilBits
== 0);
468 /* now add any/all software-based renderbuffers we may need */
469 _mesa_add_soft_renderbuffers(fb
,
470 false, /* never sw color */
471 false, /* never sw depth */
472 false, /* never sw stencil */
473 mesaVis
->accumRedBits
> 0,
474 false, /* never sw alpha */
475 false /* never sw aux */ );
476 driDrawPriv
->driverPrivate
= fb
;
483 intelDestroyBuffer(__DRIdrawable
* driDrawPriv
)
485 struct gl_framebuffer
*fb
= driDrawPriv
->driverPrivate
;
487 _mesa_reference_framebuffer(&fb
, NULL
);
490 /* There are probably better ways to do this, such as an
491 * init-designated function to register chipids and createcontext
495 i830CreateContext(const struct gl_config
*mesaVis
,
496 __DRIcontext
*driContextPriv
,
497 void *sharedContextPrivate
);
500 i915CreateContext(int api
,
501 const struct gl_config
*mesaVis
,
502 __DRIcontext
*driContextPriv
,
503 void *sharedContextPrivate
);
505 brwCreateContext(int api
,
506 const struct gl_config
*mesaVis
,
507 __DRIcontext
*driContextPriv
,
508 void *sharedContextPrivate
);
511 intelCreateContext(gl_api api
,
512 const struct gl_config
* mesaVis
,
513 __DRIcontext
* driContextPriv
,
514 void *sharedContextPrivate
)
516 __DRIscreen
*sPriv
= driContextPriv
->driScreenPriv
;
517 struct intel_screen
*intelScreen
= sPriv
->driverPrivate
;
520 if (IS_9XX(intelScreen
->deviceID
)) {
521 if (!IS_965(intelScreen
->deviceID
)) {
522 return i915CreateContext(api
, mesaVis
, driContextPriv
,
523 sharedContextPrivate
);
526 intelScreen
->no_vbo
= true;
527 return i830CreateContext(mesaVis
, driContextPriv
, sharedContextPrivate
);
530 if (IS_965(intelScreen
->deviceID
))
531 return brwCreateContext(api
, mesaVis
,
532 driContextPriv
, sharedContextPrivate
);
534 fprintf(stderr
, "Unrecognized deviceID 0x%x\n", intelScreen
->deviceID
);
539 intel_init_bufmgr(struct intel_screen
*intelScreen
)
541 __DRIscreen
*spriv
= intelScreen
->driScrnPriv
;
544 intelScreen
->no_hw
= (getenv("INTEL_NO_HW") != NULL
||
545 getenv("INTEL_DEVID_OVERRIDE") != NULL
);
547 intelScreen
->bufmgr
= intel_bufmgr_gem_init(spriv
->fd
, BATCH_SZ
);
548 if (intelScreen
->bufmgr
== NULL
) {
549 fprintf(stderr
, "[%s:%u] Error initializing buffer manager.\n",
554 if (!intel_get_param(spriv
, I915_PARAM_NUM_FENCES_AVAIL
, &num_fences
) ||
556 fprintf(stderr
, "[%s: %u] Kernel 2.6.29 required.\n", __func__
, __LINE__
);
560 drm_intel_bufmgr_gem_enable_fenced_relocs(intelScreen
->bufmgr
);
562 intelScreen
->named_regions
= _mesa_NewHashTable();
564 intelScreen
->relaxed_relocations
= 0;
565 intelScreen
->relaxed_relocations
|=
566 intel_get_boolean(spriv
, I915_PARAM_HAS_RELAXED_DELTA
) << 0;
572 * Override intel_screen.hw_has_hiz with environment variable INTEL_HIZ.
574 * Valid values for INTEL_HIZ are "0" and "1". If an invalid valid value is
575 * encountered, a warning is emitted and INTEL_HIZ is ignored.
578 intel_override_hiz(struct intel_screen
*intel
)
580 const char *s
= getenv("INTEL_HIZ");
583 } else if (!strncmp("0", s
, 2)) {
584 intel
->hw_has_hiz
= false;
585 } else if (!strncmp("1", s
, 2)) {
586 intel
->hw_has_hiz
= true;
589 "warning: env variable INTEL_HIZ=\"%s\" has invalid value "
590 "and is ignored", s
);
595 * Override intel_screen.hw_has_separate_stencil with environment variable
596 * INTEL_SEPARATE_STENCIL.
598 * Valid values for INTEL_SEPARATE_STENCIL are "0" and "1". If an invalid
599 * valid value is encountered, a warning is emitted and INTEL_SEPARATE_STENCIL
603 intel_override_separate_stencil(struct intel_screen
*screen
)
605 const char *s
= getenv("INTEL_SEPARATE_STENCIL");
608 } else if (!strncmp("0", s
, 2)) {
609 screen
->hw_has_separate_stencil
= false;
610 } else if (!strncmp("1", s
, 2)) {
611 screen
->hw_has_separate_stencil
= true;
614 "warning: env variable INTEL_SEPARATE_STENCIL=\"%s\" has "
615 "invalid value and is ignored", s
);
620 * This is the driver specific part of the createNewScreen entry point.
621 * Called when using DRI2.
623 * \return the struct gl_config supported by this driver
626 __DRIconfig
**intelInitScreen2(__DRIscreen
*psp
)
628 struct intel_screen
*intelScreen
;
631 unsigned int api_mask
;
632 char *devid_override
;
634 static const GLenum back_buffer_modes
[] = {
635 GLX_NONE
, GLX_SWAP_UNDEFINED_OML
, GLX_SWAP_COPY_OML
637 uint8_t depth_bits
[4], stencil_bits
[4], msaa_samples_array
[1];
639 __DRIconfig
**configs
= NULL
;
641 /* Allocate the private area */
642 intelScreen
= CALLOC(sizeof *intelScreen
);
644 fprintf(stderr
, "\nERROR! Allocating private area failed\n");
647 /* parse information in __driConfigOptions */
648 driParseOptionInfo(&intelScreen
->optionCache
,
649 __driConfigOptions
, __driNConfigOptions
);
651 intelScreen
->driScrnPriv
= psp
;
652 psp
->driverPrivate
= (void *) intelScreen
;
654 /* Determine chipset ID */
655 if (!intel_get_param(psp
, I915_PARAM_CHIPSET_ID
,
656 &intelScreen
->deviceID
))
659 /* Allow an override of the device ID for the purpose of making the
660 * driver produce dumps for debugging of new chipset enablement.
661 * This implies INTEL_NO_HW, to avoid programming your actual GPU
664 devid_override
= getenv("INTEL_DEVID_OVERRIDE");
665 if (devid_override
) {
666 intelScreen
->deviceID
= strtod(devid_override
, NULL
);
669 if (IS_GEN7(intelScreen
->deviceID
)) {
670 intelScreen
->gen
= 7;
671 } else if (IS_GEN6(intelScreen
->deviceID
)) {
672 intelScreen
->gen
= 6;
673 } else if (IS_GEN5(intelScreen
->deviceID
)) {
674 intelScreen
->gen
= 5;
675 } else if (IS_965(intelScreen
->deviceID
)) {
676 intelScreen
->gen
= 4;
677 } else if (IS_9XX(intelScreen
->deviceID
)) {
678 intelScreen
->gen
= 3;
680 intelScreen
->gen
= 2;
684 * FIXME: The hiz and separate stencil fields need updating once the
685 * FIXME: features are completely implemented for a given chipset.
687 intelScreen
->hw_has_separate_stencil
= intelScreen
->gen
>= 7;
688 intelScreen
->hw_must_use_separate_stencil
= intelScreen
->gen
>= 7;
689 intelScreen
->hw_has_hiz
= false;
690 intelScreen
->dri2_has_hiz
= INTEL_DRI2_HAS_HIZ_UNKNOWN
;
692 intel_override_hiz(intelScreen
);
693 intel_override_separate_stencil(intelScreen
);
695 api_mask
= (1 << __DRI_API_OPENGL
);
697 api_mask
|= (1 << __DRI_API_GLES
);
700 api_mask
|= (1 << __DRI_API_GLES2
);
703 if (IS_9XX(intelScreen
->deviceID
) || IS_965(intelScreen
->deviceID
))
704 psp
->api_mask
= api_mask
;
706 if (!intel_init_bufmgr(intelScreen
))
709 psp
->extensions
= intelScreenExtensions
;
711 msaa_samples_array
[0] = 0;
713 fb_format
[0] = GL_RGB
;
714 fb_type
[0] = GL_UNSIGNED_SHORT_5_6_5
;
716 fb_format
[1] = GL_BGR
;
717 fb_type
[1] = GL_UNSIGNED_INT_8_8_8_8_REV
;
719 fb_format
[2] = GL_BGRA
;
720 fb_type
[2] = GL_UNSIGNED_INT_8_8_8_8_REV
;
725 /* Generate a rich set of useful configs that do not include an
726 * accumulation buffer.
728 for (color
= 0; color
< ARRAY_SIZE(fb_format
); color
++) {
729 __DRIconfig
**new_configs
;
732 /* Starting with DRI2 protocol version 1.1 we can request a depth/stencil
733 * buffer that has a diffferent number of bits per pixel than the color
734 * buffer. This isn't yet supported here.
736 if (fb_type
[color
] == GL_UNSIGNED_SHORT_5_6_5
) {
746 new_configs
= driCreateConfigs(fb_format
[color
], fb_type
[color
],
751 ARRAY_SIZE(back_buffer_modes
),
753 ARRAY_SIZE(msaa_samples_array
),
756 configs
= new_configs
;
758 configs
= driConcatConfigs(configs
, new_configs
);
761 /* Generate the minimum possible set of configs that include an
762 * accumulation buffer.
764 for (color
= 0; color
< ARRAY_SIZE(fb_format
); color
++) {
765 __DRIconfig
**new_configs
;
767 if (fb_type
[color
] == GL_UNSIGNED_SHORT_5_6_5
) {
775 new_configs
= driCreateConfigs(fb_format
[color
], fb_type
[color
],
776 depth_bits
, stencil_bits
, 1,
777 back_buffer_modes
+ 1, 1,
778 msaa_samples_array
, 1,
781 configs
= new_configs
;
783 configs
= driConcatConfigs(configs
, new_configs
);
786 if (configs
== NULL
) {
787 fprintf(stderr
, "[%s:%u] Error creating FBConfig!\n", __func__
,
792 return (const __DRIconfig
**)configs
;
795 struct intel_buffer
{
797 struct intel_region
*region
;
801 * \brief Get tiling format for a DRI buffer.
803 * \param attachment is the buffer's attachmet point, such as
804 * __DRI_BUFFER_DEPTH.
805 * \param out_tiling is the returned tiling format for buffer.
806 * \return false if attachment is unrecognized or is incompatible with screen.
809 intel_get_dri_buffer_tiling(struct intel_screen
*screen
,
811 uint32_t *out_tiling
)
813 if (screen
->gen
< 4) {
814 *out_tiling
= I915_TILING_X
;
818 switch (attachment
) {
819 case __DRI_BUFFER_DEPTH
:
820 case __DRI_BUFFER_DEPTH_STENCIL
:
821 case __DRI_BUFFER_HIZ
:
822 *out_tiling
= I915_TILING_Y
;
824 case __DRI_BUFFER_ACCUM
:
825 case __DRI_BUFFER_FRONT_LEFT
:
826 case __DRI_BUFFER_FRONT_RIGHT
:
827 case __DRI_BUFFER_BACK_LEFT
:
828 case __DRI_BUFFER_BACK_RIGHT
:
829 case __DRI_BUFFER_FAKE_FRONT_LEFT
:
830 case __DRI_BUFFER_FAKE_FRONT_RIGHT
:
831 *out_tiling
= I915_TILING_X
;
833 case __DRI_BUFFER_STENCIL
:
834 /* The stencil buffer is W tiled. However, we request from the kernel
835 * a non-tiled buffer because the GTT is incapable of W fencing.
837 *out_tiling
= I915_TILING_NONE
;
840 if(unlikely(INTEL_DEBUG
& DEBUG_DRI
)) {
841 fprintf(stderr
, "error: %s: unrecognized DRI buffer attachment 0x%x\n",
842 __FUNCTION__
, attachment
);
849 intelAllocateBuffer(__DRIscreen
*screen
,
850 unsigned attachment
, unsigned format
,
851 int width
, int height
)
853 struct intel_buffer
*intelBuffer
;
854 struct intel_screen
*intelScreen
= screen
->driverPrivate
;
857 uint32_t region_width
;
858 uint32_t region_height
;
863 ok
= intel_get_dri_buffer_tiling(intelScreen
, attachment
, &tiling
);
867 intelBuffer
= CALLOC(sizeof *intelBuffer
);
868 if (intelBuffer
== NULL
)
871 if (attachment
== __DRI_BUFFER_STENCIL
) {
872 /* The stencil buffer has quirky pitch requirements. From Vol 2a,
873 * 11.5.6.2.1 3DSTATE_STENCIL_BUFFER, field "Surface Pitch":
874 * The pitch must be set to 2x the value computed based on width, as
875 * the stencil buffer is stored with two rows interleaved.
876 * To accomplish this, we resort to the nasty hack of doubling the
877 * region's cpp and halving its height.
879 region_width
= ALIGN(width
, 64);
880 region_height
= ALIGN(ALIGN(height
, 2) / 2, 64);
881 region_cpp
= format
/ 4;
883 region_width
= width
;
884 region_height
= height
;
885 region_cpp
= format
/ 8;
888 intelBuffer
->region
= intel_region_alloc(intelScreen
,
895 if (intelBuffer
->region
== NULL
) {
900 intel_region_flink(intelBuffer
->region
, &intelBuffer
->base
.name
);
902 intelBuffer
->base
.attachment
= attachment
;
903 intelBuffer
->base
.cpp
= intelBuffer
->region
->cpp
;
904 intelBuffer
->base
.pitch
=
905 intelBuffer
->region
->pitch
* intelBuffer
->region
->cpp
;
907 return &intelBuffer
->base
;
911 intelReleaseBuffer(__DRIscreen
*screen
, __DRIbuffer
*buffer
)
913 struct intel_buffer
*intelBuffer
= (struct intel_buffer
*) buffer
;
915 intel_region_release(&intelBuffer
->region
);
920 const struct __DriverAPIRec driDriverAPI
= {
921 .InitScreen
= intelInitScreen2
,
922 .DestroyScreen
= intelDestroyScreen
,
923 .CreateContext
= intelCreateContext
,
924 .DestroyContext
= intelDestroyContext
,
925 .CreateBuffer
= intelCreateBuffer
,
926 .DestroyBuffer
= intelDestroyBuffer
,
927 .MakeCurrent
= intelMakeCurrent
,
928 .UnbindContext
= intelUnbindContext
,
929 .AllocateBuffer
= intelAllocateBuffer
,
930 .ReleaseBuffer
= intelReleaseBuffer
933 /* This is the table of extensions that the loader will dlsym() for. */
934 PUBLIC
const __DRIextension
*__driDriverExtensions
[] = {
935 &driCoreExtension
.base
,
936 &driDRI2Extension
.base
,