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 image
->region
= NULL
;
295 intel_region_reference(&image
->region
, orig_image
->region
);
296 if (image
->region
== NULL
) {
301 image
->internal_format
= orig_image
->internal_format
;
302 image
->format
= orig_image
->format
;
303 image
->data_type
= orig_image
->data_type
;
304 image
->data
= loaderPrivate
;
309 static struct __DRIimageExtensionRec intelImageExtension
= {
310 { __DRI_IMAGE
, __DRI_IMAGE_VERSION
},
311 intel_create_image_from_name
,
312 intel_create_image_from_renderbuffer
,
319 static const __DRIextension
*intelScreenExtensions
[] = {
320 &driReadDrawableExtension
,
321 &intelTexBufferExtension
.base
,
322 &intelFlushExtension
.base
,
323 &intelImageExtension
.base
,
324 &dri2ConfigQueryExtension
.base
,
329 intel_get_param(__DRIscreen
*psp
, int param
, int *value
)
332 struct drm_i915_getparam gp
;
337 ret
= drmCommandWriteRead(psp
->fd
, DRM_I915_GETPARAM
, &gp
, sizeof(gp
));
340 _mesa_warning(NULL
, "drm_i915_getparam: %d", ret
);
348 intel_get_boolean(__DRIscreen
*psp
, int param
)
351 return intel_get_param(psp
, param
, &value
) && value
;
355 nop_callback(GLuint key
, void *data
, void *userData
)
360 intelDestroyScreen(__DRIscreen
* sPriv
)
362 struct intel_screen
*intelScreen
= sPriv
->private;
364 dri_bufmgr_destroy(intelScreen
->bufmgr
);
365 driDestroyOptionInfo(&intelScreen
->optionCache
);
367 /* Some regions may still have references to them at this point, so
368 * flush the hash table to prevent _mesa_DeleteHashTable() from
369 * complaining about the hash not being empty; */
370 _mesa_HashDeleteAll(intelScreen
->named_regions
, nop_callback
, NULL
);
371 _mesa_DeleteHashTable(intelScreen
->named_regions
);
374 sPriv
->private = NULL
;
379 * This is called when we need to set up GL rendering to a new X window.
382 intelCreateBuffer(__DRIscreen
* driScrnPriv
,
383 __DRIdrawable
* driDrawPriv
,
384 const struct gl_config
* mesaVis
, GLboolean isPixmap
)
386 struct intel_renderbuffer
*rb
;
387 struct intel_screen
*screen
= (struct intel_screen
*) driScrnPriv
->private;
390 return GL_FALSE
; /* not implemented */
395 struct gl_framebuffer
*fb
= CALLOC_STRUCT(gl_framebuffer
);
400 _mesa_initialize_window_framebuffer(fb
, mesaVis
);
402 if (mesaVis
->redBits
== 5)
403 rgbFormat
= MESA_FORMAT_RGB565
;
404 else if (mesaVis
->alphaBits
== 0)
405 rgbFormat
= MESA_FORMAT_XRGB8888
;
407 rgbFormat
= MESA_FORMAT_ARGB8888
;
409 /* setup the hardware-based renderbuffers */
410 rb
= intel_create_renderbuffer(rgbFormat
);
411 _mesa_add_renderbuffer(fb
, BUFFER_FRONT_LEFT
, &rb
->Base
);
413 if (mesaVis
->doubleBufferMode
) {
414 rb
= intel_create_renderbuffer(rgbFormat
);
415 _mesa_add_renderbuffer(fb
, BUFFER_BACK_LEFT
, &rb
->Base
);
419 * Assert here that the gl_config has an expected depth/stencil bit
420 * combination: one of d24/s8, d16/s0, d0/s0. (See intelInitScreen2(),
421 * which constructs the advertised configs.)
423 if (mesaVis
->depthBits
== 24) {
424 assert(mesaVis
->stencilBits
== 8);
426 if (screen
->hw_has_separate_stencil
427 && screen
->dri2_has_hiz
!= INTEL_DRI2_HAS_HIZ_FALSE
) {
429 * Request a separate stencil buffer even if we do not yet know if
430 * the screen supports it. (See comments for
431 * enum intel_dri2_has_hiz).
433 rb
= intel_create_renderbuffer(MESA_FORMAT_X8_Z24
);
434 _mesa_add_renderbuffer(fb
, BUFFER_DEPTH
, &rb
->Base
);
435 rb
= intel_create_renderbuffer(MESA_FORMAT_S8
);
436 _mesa_add_renderbuffer(fb
, BUFFER_STENCIL
, &rb
->Base
);
439 * Use combined depth/stencil. Note that the renderbuffer is
440 * attached to two attachment points.
442 rb
= intel_create_renderbuffer(MESA_FORMAT_S8_Z24
);
443 _mesa_add_renderbuffer(fb
, BUFFER_DEPTH
, &rb
->Base
);
444 _mesa_add_renderbuffer(fb
, BUFFER_STENCIL
, &rb
->Base
);
447 else if (mesaVis
->depthBits
== 16) {
448 assert(mesaVis
->stencilBits
== 0);
449 /* just 16-bit depth buffer, no hw stencil */
450 struct intel_renderbuffer
*depthRb
451 = intel_create_renderbuffer(MESA_FORMAT_Z16
);
452 _mesa_add_renderbuffer(fb
, BUFFER_DEPTH
, &depthRb
->Base
);
455 assert(mesaVis
->depthBits
== 0);
456 assert(mesaVis
->stencilBits
== 0);
459 /* now add any/all software-based renderbuffers we may need */
460 _mesa_add_soft_renderbuffers(fb
,
461 GL_FALSE
, /* never sw color */
462 GL_FALSE
, /* never sw depth */
463 GL_FALSE
, /* never sw stencil */
464 mesaVis
->accumRedBits
> 0,
465 GL_FALSE
, /* never sw alpha */
466 GL_FALSE
/* never sw aux */ );
467 driDrawPriv
->driverPrivate
= fb
;
474 intelDestroyBuffer(__DRIdrawable
* driDrawPriv
)
476 struct gl_framebuffer
*fb
= driDrawPriv
->driverPrivate
;
478 _mesa_reference_framebuffer(&fb
, NULL
);
481 /* There are probably better ways to do this, such as an
482 * init-designated function to register chipids and createcontext
485 extern GLboolean
i830CreateContext(const struct gl_config
* mesaVis
,
486 __DRIcontext
* driContextPriv
,
487 void *sharedContextPrivate
);
489 extern GLboolean
i915CreateContext(int api
,
490 const struct gl_config
* mesaVis
,
491 __DRIcontext
* driContextPriv
,
492 void *sharedContextPrivate
);
493 extern GLboolean
brwCreateContext(int api
,
494 const struct gl_config
* mesaVis
,
495 __DRIcontext
* driContextPriv
,
496 void *sharedContextPrivate
);
499 intelCreateContext(gl_api api
,
500 const struct gl_config
* mesaVis
,
501 __DRIcontext
* driContextPriv
,
502 void *sharedContextPrivate
)
504 __DRIscreen
*sPriv
= driContextPriv
->driScreenPriv
;
505 struct intel_screen
*intelScreen
= sPriv
->private;
508 if (IS_9XX(intelScreen
->deviceID
)) {
509 if (!IS_965(intelScreen
->deviceID
)) {
510 return i915CreateContext(api
, mesaVis
, driContextPriv
,
511 sharedContextPrivate
);
514 intelScreen
->no_vbo
= GL_TRUE
;
515 return i830CreateContext(mesaVis
, driContextPriv
, sharedContextPrivate
);
518 if (IS_965(intelScreen
->deviceID
))
519 return brwCreateContext(api
, mesaVis
,
520 driContextPriv
, sharedContextPrivate
);
522 fprintf(stderr
, "Unrecognized deviceID 0x%x\n", intelScreen
->deviceID
);
527 intel_init_bufmgr(struct intel_screen
*intelScreen
)
529 __DRIscreen
*spriv
= intelScreen
->driScrnPriv
;
532 intelScreen
->no_hw
= (getenv("INTEL_NO_HW") != NULL
||
533 getenv("INTEL_DEVID_OVERRIDE") != NULL
);
535 intelScreen
->bufmgr
= intel_bufmgr_gem_init(spriv
->fd
, BATCH_SZ
);
536 if (intelScreen
->bufmgr
== NULL
) {
537 fprintf(stderr
, "[%s:%u] Error initializing buffer manager.\n",
542 if (!intel_get_param(spriv
, I915_PARAM_NUM_FENCES_AVAIL
, &num_fences
) ||
544 fprintf(stderr
, "[%s: %u] Kernel 2.6.29 required.\n", __func__
, __LINE__
);
548 drm_intel_bufmgr_gem_enable_fenced_relocs(intelScreen
->bufmgr
);
550 intelScreen
->named_regions
= _mesa_NewHashTable();
552 intelScreen
->relaxed_relocations
= 0;
553 intelScreen
->relaxed_relocations
|=
554 intel_get_boolean(spriv
, I915_PARAM_HAS_RELAXED_DELTA
) << 0;
560 * Override intel_screen.hw_has_hiz with environment variable INTEL_HIZ.
562 * Valid values for INTEL_HIZ are "0" and "1". If an invalid valid value is
563 * encountered, a warning is emitted and INTEL_HIZ is ignored.
566 intel_override_hiz(struct intel_screen
*intel
)
568 const char *s
= getenv("INTEL_HIZ");
571 } else if (!strncmp("0", s
, 2)) {
572 intel
->hw_has_hiz
= false;
573 } else if (!strncmp("1", s
, 2)) {
574 intel
->hw_has_hiz
= true;
577 "warning: env variable INTEL_HIZ=\"%s\" has invalid value "
578 "and is ignored", s
);
583 * Override intel_screen.hw_has_separate_stencil with environment variable
584 * INTEL_SEPARATE_STENCIL.
586 * Valid values for INTEL_SEPARATE_STENCIL are "0" and "1". If an invalid
587 * valid value is encountered, a warning is emitted and INTEL_SEPARATE_STENCIL
591 intel_override_separate_stencil(struct intel_screen
*screen
)
593 const char *s
= getenv("INTEL_SEPARATE_STENCIL");
596 } else if (!strncmp("0", s
, 2)) {
597 screen
->hw_has_separate_stencil
= false;
598 } else if (!strncmp("1", s
, 2)) {
599 screen
->hw_has_separate_stencil
= true;
602 "warning: env variable INTEL_SEPARATE_STENCIL=\"%s\" has "
603 "invalid value and is ignored", s
);
608 * This is the driver specific part of the createNewScreen entry point.
609 * Called when using DRI2.
611 * \return the struct gl_config supported by this driver
614 __DRIconfig
**intelInitScreen2(__DRIscreen
*psp
)
616 struct intel_screen
*intelScreen
;
619 unsigned int api_mask
;
620 char *devid_override
;
622 static const GLenum back_buffer_modes
[] = {
623 GLX_NONE
, GLX_SWAP_UNDEFINED_OML
, GLX_SWAP_COPY_OML
625 uint8_t depth_bits
[4], stencil_bits
[4], msaa_samples_array
[1];
627 __DRIconfig
**configs
= NULL
;
629 /* Allocate the private area */
630 intelScreen
= CALLOC(sizeof *intelScreen
);
632 fprintf(stderr
, "\nERROR! Allocating private area failed\n");
635 /* parse information in __driConfigOptions */
636 driParseOptionInfo(&intelScreen
->optionCache
,
637 __driConfigOptions
, __driNConfigOptions
);
639 intelScreen
->driScrnPriv
= psp
;
640 psp
->private = (void *) intelScreen
;
642 /* Determine chipset ID */
643 if (!intel_get_param(psp
, I915_PARAM_CHIPSET_ID
,
644 &intelScreen
->deviceID
))
647 /* Allow an override of the device ID for the purpose of making the
648 * driver produce dumps for debugging of new chipset enablement.
649 * This implies INTEL_NO_HW, to avoid programming your actual GPU
652 devid_override
= getenv("INTEL_DEVID_OVERRIDE");
653 if (devid_override
) {
654 intelScreen
->deviceID
= strtod(devid_override
, NULL
);
657 if (IS_GEN7(intelScreen
->deviceID
)) {
658 intelScreen
->gen
= 7;
659 } else if (IS_GEN6(intelScreen
->deviceID
)) {
660 intelScreen
->gen
= 6;
661 } else if (IS_GEN5(intelScreen
->deviceID
)) {
662 intelScreen
->gen
= 5;
663 } else if (IS_965(intelScreen
->deviceID
)) {
664 intelScreen
->gen
= 4;
665 } else if (IS_9XX(intelScreen
->deviceID
)) {
666 intelScreen
->gen
= 3;
668 intelScreen
->gen
= 2;
672 * FIXME: The hiz and separate stencil fields need updating once the
673 * FIXME: features are completely implemented for a given chipset.
675 intelScreen
->hw_has_separate_stencil
= intelScreen
->gen
>= 7;
676 intelScreen
->hw_must_use_separate_stencil
= intelScreen
->gen
>= 7;
677 intelScreen
->hw_has_hiz
= false;
678 intelScreen
->dri2_has_hiz
= INTEL_DRI2_HAS_HIZ_UNKNOWN
;
680 intel_override_hiz(intelScreen
);
681 intel_override_separate_stencil(intelScreen
);
683 api_mask
= (1 << __DRI_API_OPENGL
);
685 api_mask
|= (1 << __DRI_API_GLES
);
688 api_mask
|= (1 << __DRI_API_GLES2
);
691 if (IS_9XX(intelScreen
->deviceID
) || IS_965(intelScreen
->deviceID
))
692 psp
->api_mask
= api_mask
;
694 if (!intel_init_bufmgr(intelScreen
))
697 psp
->extensions
= intelScreenExtensions
;
699 msaa_samples_array
[0] = 0;
701 fb_format
[0] = GL_RGB
;
702 fb_type
[0] = GL_UNSIGNED_SHORT_5_6_5
;
704 fb_format
[1] = GL_BGR
;
705 fb_type
[1] = GL_UNSIGNED_INT_8_8_8_8_REV
;
707 fb_format
[2] = GL_BGRA
;
708 fb_type
[2] = GL_UNSIGNED_INT_8_8_8_8_REV
;
713 /* Generate a rich set of useful configs that do not include an
714 * accumulation buffer.
716 for (color
= 0; color
< ARRAY_SIZE(fb_format
); color
++) {
717 __DRIconfig
**new_configs
;
720 /* Starting with DRI2 protocol version 1.1 we can request a depth/stencil
721 * buffer that has a diffferent number of bits per pixel than the color
722 * buffer. This isn't yet supported here.
724 if (fb_type
[color
] == GL_UNSIGNED_SHORT_5_6_5
) {
734 new_configs
= driCreateConfigs(fb_format
[color
], fb_type
[color
],
739 ARRAY_SIZE(back_buffer_modes
),
741 ARRAY_SIZE(msaa_samples_array
),
744 configs
= new_configs
;
746 configs
= driConcatConfigs(configs
, new_configs
);
749 /* Generate the minimum possible set of configs that include an
750 * accumulation buffer.
752 for (color
= 0; color
< ARRAY_SIZE(fb_format
); color
++) {
753 __DRIconfig
**new_configs
;
755 if (fb_type
[color
] == GL_UNSIGNED_SHORT_5_6_5
) {
763 new_configs
= driCreateConfigs(fb_format
[color
], fb_type
[color
],
764 depth_bits
, stencil_bits
, 1,
765 back_buffer_modes
+ 1, 1,
766 msaa_samples_array
, 1,
769 configs
= new_configs
;
771 configs
= driConcatConfigs(configs
, new_configs
);
774 if (configs
== NULL
) {
775 fprintf(stderr
, "[%s:%u] Error creating FBConfig!\n", __func__
,
780 return (const __DRIconfig
**)configs
;
783 struct intel_buffer
{
785 struct intel_region
*region
;
789 intelAllocateBuffer(__DRIscreen
*screen
,
790 unsigned attachment
, unsigned format
,
791 int width
, int height
)
793 struct intel_buffer
*intelBuffer
;
794 struct intel_screen
*intelScreen
= screen
->private;
797 intelBuffer
= CALLOC(sizeof *intelBuffer
);
798 if (intelBuffer
== NULL
)
801 if ((attachment
== __DRI_BUFFER_DEPTH
||
802 attachment
== __DRI_BUFFER_STENCIL
||
803 attachment
== __DRI_BUFFER_DEPTH_STENCIL
) &&
804 intelScreen
->gen
>= 4)
805 tiling
= I915_TILING_Y
;
807 tiling
= I915_TILING_X
;
809 intelBuffer
->region
= intel_region_alloc(intelScreen
, tiling
,
810 format
/ 8, width
, height
, GL_TRUE
);
812 if (intelBuffer
->region
== NULL
) {
817 intel_region_flink(intelBuffer
->region
, &intelBuffer
->base
.name
);
819 intelBuffer
->base
.attachment
= attachment
;
820 intelBuffer
->base
.cpp
= intelBuffer
->region
->cpp
;
821 intelBuffer
->base
.pitch
=
822 intelBuffer
->region
->pitch
* intelBuffer
->region
->cpp
;
824 return &intelBuffer
->base
;
828 intelReleaseBuffer(__DRIscreen
*screen
, __DRIbuffer
*buffer
)
830 struct intel_buffer
*intelBuffer
= (struct intel_buffer
*) buffer
;
832 intel_region_release(&intelBuffer
->region
);
837 const struct __DriverAPIRec driDriverAPI
= {
838 .DestroyScreen
= intelDestroyScreen
,
839 .CreateContext
= intelCreateContext
,
840 .DestroyContext
= intelDestroyContext
,
841 .CreateBuffer
= intelCreateBuffer
,
842 .DestroyBuffer
= intelDestroyBuffer
,
843 .MakeCurrent
= intelMakeCurrent
,
844 .UnbindContext
= intelUnbindContext
,
845 .InitScreen2
= intelInitScreen2
,
846 .AllocateBuffer
= intelAllocateBuffer
,
847 .ReleaseBuffer
= intelReleaseBuffer
850 /* This is the table of extensions that the loader will dlsym() for. */
851 PUBLIC
const __DRIextension
*__driDriverExtensions
[] = {
852 &driCoreExtension
.base
,
853 &driDRI2Extension
.base
,