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
);
286 intel_dup_image(__DRIimage
*orig_image
, void *loaderPrivate
)
290 image
= CALLOC(sizeof *image
);
294 intel_region_reference(&image
->region
, orig_image
->region
);
295 if (image
->region
== NULL
) {
300 image
->internal_format
= orig_image
->internal_format
;
301 image
->format
= orig_image
->format
;
302 image
->data_type
= orig_image
->data_type
;
303 image
->data
= loaderPrivate
;
308 static struct __DRIimageExtensionRec intelImageExtension
= {
309 { __DRI_IMAGE
, __DRI_IMAGE_VERSION
},
310 intel_create_image_from_name
,
311 intel_create_image_from_renderbuffer
,
318 static const __DRIextension
*intelScreenExtensions
[] = {
319 &driReadDrawableExtension
,
320 &intelTexBufferExtension
.base
,
321 &intelFlushExtension
.base
,
322 &intelImageExtension
.base
,
323 &dri2ConfigQueryExtension
.base
,
328 intel_get_param(__DRIscreen
*psp
, int param
, int *value
)
331 struct drm_i915_getparam gp
;
336 ret
= drmCommandWriteRead(psp
->fd
, DRM_I915_GETPARAM
, &gp
, sizeof(gp
));
339 _mesa_warning(NULL
, "drm_i915_getparam: %d", ret
);
347 intel_get_boolean(__DRIscreen
*psp
, int param
)
350 return intel_get_param(psp
, param
, &value
) && value
;
354 nop_callback(GLuint key
, void *data
, void *userData
)
359 intelDestroyScreen(__DRIscreen
* sPriv
)
361 struct intel_screen
*intelScreen
= sPriv
->private;
363 dri_bufmgr_destroy(intelScreen
->bufmgr
);
364 driDestroyOptionInfo(&intelScreen
->optionCache
);
366 /* Some regions may still have references to them at this point, so
367 * flush the hash table to prevent _mesa_DeleteHashTable() from
368 * complaining about the hash not being empty; */
369 _mesa_HashDeleteAll(intelScreen
->named_regions
, nop_callback
, NULL
);
370 _mesa_DeleteHashTable(intelScreen
->named_regions
);
373 sPriv
->private = NULL
;
378 * This is called when we need to set up GL rendering to a new X window.
381 intelCreateBuffer(__DRIscreen
* driScrnPriv
,
382 __DRIdrawable
* driDrawPriv
,
383 const struct gl_config
* mesaVis
, GLboolean isPixmap
)
385 struct intel_renderbuffer
*rb
;
386 struct intel_screen
*screen
= (struct intel_screen
*) driScrnPriv
->private;
389 return GL_FALSE
; /* not implemented */
394 struct gl_framebuffer
*fb
= CALLOC_STRUCT(gl_framebuffer
);
399 _mesa_initialize_window_framebuffer(fb
, mesaVis
);
401 if (mesaVis
->redBits
== 5)
402 rgbFormat
= MESA_FORMAT_RGB565
;
403 else if (mesaVis
->alphaBits
== 0)
404 rgbFormat
= MESA_FORMAT_XRGB8888
;
406 rgbFormat
= MESA_FORMAT_ARGB8888
;
408 /* setup the hardware-based renderbuffers */
409 rb
= intel_create_renderbuffer(rgbFormat
);
410 _mesa_add_renderbuffer(fb
, BUFFER_FRONT_LEFT
, &rb
->Base
);
412 if (mesaVis
->doubleBufferMode
) {
413 rb
= intel_create_renderbuffer(rgbFormat
);
414 _mesa_add_renderbuffer(fb
, BUFFER_BACK_LEFT
, &rb
->Base
);
418 * Assert here that the gl_config has an expected depth/stencil bit
419 * combination: one of d24/s8, d16/s0, d0/s0. (See intelInitScreen2(),
420 * which constructs the advertised configs.)
422 if (mesaVis
->depthBits
== 24) {
423 assert(mesaVis
->stencilBits
== 8);
425 if (screen
->hw_has_separate_stencil
426 && screen
->dri2_has_hiz
!= INTEL_DRI2_HAS_HIZ_FALSE
) {
428 * Request a separate stencil buffer even if we do not yet know if
429 * the screen supports it. (See comments for
430 * enum intel_dri2_has_hiz).
432 rb
= intel_create_renderbuffer(MESA_FORMAT_X8_Z24
);
433 _mesa_add_renderbuffer(fb
, BUFFER_DEPTH
, &rb
->Base
);
434 rb
= intel_create_renderbuffer(MESA_FORMAT_S8
);
435 _mesa_add_renderbuffer(fb
, BUFFER_STENCIL
, &rb
->Base
);
438 * Use combined depth/stencil. Note that the renderbuffer is
439 * attached to two attachment points.
441 rb
= intel_create_renderbuffer(MESA_FORMAT_S8_Z24
);
442 _mesa_add_renderbuffer(fb
, BUFFER_DEPTH
, &rb
->Base
);
443 _mesa_add_renderbuffer(fb
, BUFFER_STENCIL
, &rb
->Base
);
446 else if (mesaVis
->depthBits
== 16) {
447 assert(mesaVis
->stencilBits
== 0);
448 /* just 16-bit depth buffer, no hw stencil */
449 struct intel_renderbuffer
*depthRb
450 = intel_create_renderbuffer(MESA_FORMAT_Z16
);
451 _mesa_add_renderbuffer(fb
, BUFFER_DEPTH
, &depthRb
->Base
);
454 assert(mesaVis
->depthBits
== 0);
455 assert(mesaVis
->stencilBits
== 0);
458 /* now add any/all software-based renderbuffers we may need */
459 _mesa_add_soft_renderbuffers(fb
,
460 GL_FALSE
, /* never sw color */
461 GL_FALSE
, /* never sw depth */
462 GL_FALSE
, /* never sw stencil */
463 mesaVis
->accumRedBits
> 0,
464 GL_FALSE
, /* never sw alpha */
465 GL_FALSE
/* never sw aux */ );
466 driDrawPriv
->driverPrivate
= fb
;
473 intelDestroyBuffer(__DRIdrawable
* driDrawPriv
)
475 struct gl_framebuffer
*fb
= driDrawPriv
->driverPrivate
;
477 _mesa_reference_framebuffer(&fb
, NULL
);
480 /* There are probably better ways to do this, such as an
481 * init-designated function to register chipids and createcontext
484 extern GLboolean
i830CreateContext(const struct gl_config
* mesaVis
,
485 __DRIcontext
* driContextPriv
,
486 void *sharedContextPrivate
);
488 extern GLboolean
i915CreateContext(int api
,
489 const struct gl_config
* mesaVis
,
490 __DRIcontext
* driContextPriv
,
491 void *sharedContextPrivate
);
492 extern GLboolean
brwCreateContext(int api
,
493 const struct gl_config
* mesaVis
,
494 __DRIcontext
* driContextPriv
,
495 void *sharedContextPrivate
);
498 intelCreateContext(gl_api api
,
499 const struct gl_config
* mesaVis
,
500 __DRIcontext
* driContextPriv
,
501 void *sharedContextPrivate
)
503 __DRIscreen
*sPriv
= driContextPriv
->driScreenPriv
;
504 struct intel_screen
*intelScreen
= sPriv
->private;
507 if (IS_9XX(intelScreen
->deviceID
)) {
508 if (!IS_965(intelScreen
->deviceID
)) {
509 return i915CreateContext(api
, mesaVis
, driContextPriv
,
510 sharedContextPrivate
);
513 intelScreen
->no_vbo
= GL_TRUE
;
514 return i830CreateContext(mesaVis
, driContextPriv
, sharedContextPrivate
);
517 if (IS_965(intelScreen
->deviceID
))
518 return brwCreateContext(api
, mesaVis
,
519 driContextPriv
, sharedContextPrivate
);
521 fprintf(stderr
, "Unrecognized deviceID 0x%x\n", intelScreen
->deviceID
);
526 intel_init_bufmgr(struct intel_screen
*intelScreen
)
528 __DRIscreen
*spriv
= intelScreen
->driScrnPriv
;
531 intelScreen
->no_hw
= (getenv("INTEL_NO_HW") != NULL
||
532 getenv("INTEL_DEVID_OVERRIDE") != NULL
);
534 intelScreen
->bufmgr
= intel_bufmgr_gem_init(spriv
->fd
, BATCH_SZ
);
535 if (intelScreen
->bufmgr
== NULL
) {
536 fprintf(stderr
, "[%s:%u] Error initializing buffer manager.\n",
541 if (!intel_get_param(spriv
, I915_PARAM_NUM_FENCES_AVAIL
, &num_fences
) ||
543 fprintf(stderr
, "[%s: %u] Kernel 2.6.29 required.\n", __func__
, __LINE__
);
547 drm_intel_bufmgr_gem_enable_fenced_relocs(intelScreen
->bufmgr
);
549 intelScreen
->named_regions
= _mesa_NewHashTable();
551 intelScreen
->relaxed_relocations
= 0;
552 intelScreen
->relaxed_relocations
|=
553 intel_get_boolean(spriv
, I915_PARAM_HAS_RELAXED_DELTA
) << 0;
559 * Override intel_screen.hw_has_hiz with environment variable INTEL_HIZ.
561 * Valid values for INTEL_HIZ are "0" and "1". If an invalid valid value is
562 * encountered, a warning is emitted and INTEL_HIZ is ignored.
565 intel_override_hiz(struct intel_screen
*intel
)
567 const char *s
= getenv("INTEL_HIZ");
570 } else if (!strncmp("0", s
, 2)) {
571 intel
->hw_has_hiz
= false;
572 } else if (!strncmp("1", s
, 2)) {
573 intel
->hw_has_hiz
= true;
576 "warning: env variable INTEL_HIZ=\"%s\" has invalid value "
577 "and is ignored", s
);
582 * Override intel_screen.hw_has_separate_stencil with environment variable
583 * INTEL_SEPARATE_STENCIL.
585 * Valid values for INTEL_SEPARATE_STENCIL are "0" and "1". If an invalid
586 * valid value is encountered, a warning is emitted and INTEL_SEPARATE_STENCIL
590 intel_override_separate_stencil(struct intel_screen
*screen
)
592 const char *s
= getenv("INTEL_SEPARATE_STENCIL");
595 } else if (!strncmp("0", s
, 2)) {
596 screen
->hw_has_separate_stencil
= false;
597 } else if (!strncmp("1", s
, 2)) {
598 screen
->hw_has_separate_stencil
= true;
601 "warning: env variable INTEL_SEPARATE_STENCIL=\"%s\" has "
602 "invalid value and is ignored", s
);
607 * This is the driver specific part of the createNewScreen entry point.
608 * Called when using DRI2.
610 * \return the struct gl_config supported by this driver
613 __DRIconfig
**intelInitScreen2(__DRIscreen
*psp
)
615 struct intel_screen
*intelScreen
;
618 unsigned int api_mask
;
619 char *devid_override
;
621 static const GLenum back_buffer_modes
[] = {
622 GLX_NONE
, GLX_SWAP_UNDEFINED_OML
, GLX_SWAP_COPY_OML
624 uint8_t depth_bits
[4], stencil_bits
[4], msaa_samples_array
[1];
626 __DRIconfig
**configs
= NULL
;
628 /* Allocate the private area */
629 intelScreen
= CALLOC(sizeof *intelScreen
);
631 fprintf(stderr
, "\nERROR! Allocating private area failed\n");
634 /* parse information in __driConfigOptions */
635 driParseOptionInfo(&intelScreen
->optionCache
,
636 __driConfigOptions
, __driNConfigOptions
);
638 intelScreen
->driScrnPriv
= psp
;
639 psp
->private = (void *) intelScreen
;
641 /* Determine chipset ID */
642 if (!intel_get_param(psp
, I915_PARAM_CHIPSET_ID
,
643 &intelScreen
->deviceID
))
646 /* Allow an override of the device ID for the purpose of making the
647 * driver produce dumps for debugging of new chipset enablement.
648 * This implies INTEL_NO_HW, to avoid programming your actual GPU
651 devid_override
= getenv("INTEL_DEVID_OVERRIDE");
652 if (devid_override
) {
653 intelScreen
->deviceID
= strtod(devid_override
, NULL
);
656 if (IS_GEN7(intelScreen
->deviceID
)) {
657 intelScreen
->gen
= 7;
658 } else if (IS_GEN6(intelScreen
->deviceID
)) {
659 intelScreen
->gen
= 6;
660 } else if (IS_GEN5(intelScreen
->deviceID
)) {
661 intelScreen
->gen
= 5;
662 } else if (IS_965(intelScreen
->deviceID
)) {
663 intelScreen
->gen
= 4;
664 } else if (IS_9XX(intelScreen
->deviceID
)) {
665 intelScreen
->gen
= 3;
667 intelScreen
->gen
= 2;
671 * FIXME: The hiz and separate stencil fields need updating once the
672 * FIXME: features are completely implemented for a given chipset.
674 intelScreen
->hw_has_separate_stencil
= intelScreen
->gen
>= 7;
675 intelScreen
->hw_must_use_separate_stencil
= intelScreen
->gen
>= 7;
676 intelScreen
->hw_has_hiz
= false;
677 intelScreen
->dri2_has_hiz
= INTEL_DRI2_HAS_HIZ_UNKNOWN
;
679 intel_override_hiz(intelScreen
);
680 intel_override_separate_stencil(intelScreen
);
682 api_mask
= (1 << __DRI_API_OPENGL
);
684 api_mask
|= (1 << __DRI_API_GLES
);
687 api_mask
|= (1 << __DRI_API_GLES2
);
690 if (IS_9XX(intelScreen
->deviceID
) || IS_965(intelScreen
->deviceID
))
691 psp
->api_mask
= api_mask
;
693 if (!intel_init_bufmgr(intelScreen
))
696 psp
->extensions
= intelScreenExtensions
;
698 msaa_samples_array
[0] = 0;
700 fb_format
[0] = GL_RGB
;
701 fb_type
[0] = GL_UNSIGNED_SHORT_5_6_5
;
703 fb_format
[1] = GL_BGR
;
704 fb_type
[1] = GL_UNSIGNED_INT_8_8_8_8_REV
;
706 fb_format
[2] = GL_BGRA
;
707 fb_type
[2] = GL_UNSIGNED_INT_8_8_8_8_REV
;
712 /* Generate a rich set of useful configs that do not include an
713 * accumulation buffer.
715 for (color
= 0; color
< ARRAY_SIZE(fb_format
); color
++) {
716 __DRIconfig
**new_configs
;
719 /* Starting with DRI2 protocol version 1.1 we can request a depth/stencil
720 * buffer that has a diffferent number of bits per pixel than the color
721 * buffer. This isn't yet supported here.
723 if (fb_type
[color
] == GL_UNSIGNED_SHORT_5_6_5
) {
733 new_configs
= driCreateConfigs(fb_format
[color
], fb_type
[color
],
738 ARRAY_SIZE(back_buffer_modes
),
740 ARRAY_SIZE(msaa_samples_array
),
743 configs
= new_configs
;
745 configs
= driConcatConfigs(configs
, new_configs
);
748 /* Generate the minimum possible set of configs that include an
749 * accumulation buffer.
751 for (color
= 0; color
< ARRAY_SIZE(fb_format
); color
++) {
752 __DRIconfig
**new_configs
;
754 if (fb_type
[color
] == GL_UNSIGNED_SHORT_5_6_5
) {
762 new_configs
= driCreateConfigs(fb_format
[color
], fb_type
[color
],
763 depth_bits
, stencil_bits
, 1,
764 back_buffer_modes
+ 1, 1,
765 msaa_samples_array
, 1,
768 configs
= new_configs
;
770 configs
= driConcatConfigs(configs
, new_configs
);
773 if (configs
== NULL
) {
774 fprintf(stderr
, "[%s:%u] Error creating FBConfig!\n", __func__
,
779 return (const __DRIconfig
**)configs
;
782 struct intel_buffer
{
784 struct intel_region
*region
;
788 intelAllocateBuffer(__DRIscreen
*screen
,
789 unsigned attachment
, unsigned format
,
790 int width
, int height
)
792 struct intel_buffer
*intelBuffer
;
793 struct intel_screen
*intelScreen
= screen
->private;
796 intelBuffer
= CALLOC(sizeof *intelBuffer
);
797 if (intelBuffer
== NULL
)
800 if ((attachment
== __DRI_BUFFER_DEPTH
||
801 attachment
== __DRI_BUFFER_STENCIL
||
802 attachment
== __DRI_BUFFER_DEPTH_STENCIL
) &&
803 intelScreen
->gen
>= 4)
804 tiling
= I915_TILING_Y
;
806 tiling
= I915_TILING_X
;
808 intelBuffer
->region
= intel_region_alloc(intelScreen
, tiling
,
809 format
/ 8, width
, height
, GL_TRUE
);
811 if (intelBuffer
->region
== NULL
) {
816 intel_region_flink(intelBuffer
->region
, &intelBuffer
->base
.name
);
818 intelBuffer
->base
.attachment
= attachment
;
819 intelBuffer
->base
.cpp
= intelBuffer
->region
->cpp
;
820 intelBuffer
->base
.pitch
=
821 intelBuffer
->region
->pitch
* intelBuffer
->region
->cpp
;
823 return &intelBuffer
->base
;
827 intelReleaseBuffer(__DRIscreen
*screen
, __DRIbuffer
*buffer
)
829 struct intel_buffer
*intelBuffer
= (struct intel_buffer
*) buffer
;
831 intel_region_release(&intelBuffer
->region
);
836 const struct __DriverAPIRec driDriverAPI
= {
837 .DestroyScreen
= intelDestroyScreen
,
838 .CreateContext
= intelCreateContext
,
839 .DestroyContext
= intelDestroyContext
,
840 .CreateBuffer
= intelCreateBuffer
,
841 .DestroyBuffer
= intelDestroyBuffer
,
842 .MakeCurrent
= intelMakeCurrent
,
843 .UnbindContext
= intelUnbindContext
,
844 .InitScreen2
= intelInitScreen2
,
845 .AllocateBuffer
= intelAllocateBuffer
,
846 .ReleaseBuffer
= intelReleaseBuffer
849 /* This is the table of extensions that the loader will dlsym() for. */
850 PUBLIC
const __DRIextension
*__driDriverExtensions
[] = {
851 &driCoreExtension
.base
,
852 &driDRI2Extension
.base
,