2 * Copyright 2003 VMware, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 #include <drm_fourcc.h>
30 #include "main/context.h"
31 #include "main/framebuffer.h"
32 #include "main/renderbuffer.h"
33 #include "main/texobj.h"
34 #include "main/hash.h"
35 #include "main/fbobject.h"
36 #include "main/version.h"
37 #include "swrast/s_renderbuffer.h"
38 #include "util/ralloc.h"
39 #include "util/disk_cache.h"
40 #include "brw_defines.h"
41 #include "brw_state.h"
42 #include "compiler/nir/nir.h"
45 #include "util/disk_cache.h"
46 #include "util/xmlpool.h"
48 #include "common/gen_defines.h"
50 static const __DRIconfigOptionsExtension brw_config_options
= {
51 .base
= { __DRI_CONFIG_OPTIONS
, 1 },
54 DRI_CONF_SECTION_PERFORMANCE
55 /* Options correspond to DRI_CONF_BO_REUSE_DISABLED,
56 * DRI_CONF_BO_REUSE_ALL
58 DRI_CONF_OPT_BEGIN_V(bo_reuse
, enum, 1, "0:1")
59 DRI_CONF_DESC_BEGIN(en
, "Buffer object reuse")
60 DRI_CONF_ENUM(0, "Disable buffer object reuse")
61 DRI_CONF_ENUM(1, "Enable reuse of all sizes of buffer objects")
64 DRI_CONF_MESA_NO_ERROR("false")
67 DRI_CONF_SECTION_QUALITY
68 DRI_CONF_PRECISE_TRIG("false")
70 DRI_CONF_OPT_BEGIN(clamp_max_samples
, int, -1)
71 DRI_CONF_DESC(en
, "Clamp the value of GL_MAX_SAMPLES to the "
72 "given integer. If negative, then do not clamp.")
76 DRI_CONF_SECTION_DEBUG
77 DRI_CONF_NO_RAST("false")
78 DRI_CONF_ALWAYS_FLUSH_BATCH("false")
79 DRI_CONF_ALWAYS_FLUSH_CACHE("false")
80 DRI_CONF_DISABLE_THROTTLING("false")
81 DRI_CONF_FORCE_GLSL_EXTENSIONS_WARN("false")
82 DRI_CONF_FORCE_GLSL_VERSION(0)
83 DRI_CONF_DISABLE_GLSL_LINE_CONTINUATIONS("false")
84 DRI_CONF_DISABLE_BLEND_FUNC_EXTENDED("false")
85 DRI_CONF_DUAL_COLOR_BLEND_BY_LOCATION("false")
86 DRI_CONF_ALLOW_GLSL_EXTENSION_DIRECTIVE_MIDSHADER("false")
87 DRI_CONF_ALLOW_GLSL_BUILTIN_VARIABLE_REDECLARATION("false")
88 DRI_CONF_ALLOW_GLSL_CROSS_STAGE_INTERPOLATION_MISMATCH("false")
89 DRI_CONF_ALLOW_HIGHER_COMPAT_VERSION("false")
90 DRI_CONF_FORCE_GLSL_ABS_SQRT("false")
92 DRI_CONF_OPT_BEGIN_B(shader_precompile
, "true")
93 DRI_CONF_DESC(en
, "Perform code generation at shader link time.")
97 DRI_CONF_SECTION_MISCELLANEOUS
98 DRI_CONF_GLSL_ZERO_INIT("false")
99 DRI_CONF_ALLOW_RGB10_CONFIGS("false")
104 #include "intel_batchbuffer.h"
105 #include "intel_buffers.h"
106 #include "brw_bufmgr.h"
107 #include "intel_fbo.h"
108 #include "intel_mipmap_tree.h"
109 #include "intel_screen.h"
110 #include "intel_tex.h"
111 #include "intel_image.h"
113 #include "brw_context.h"
115 #include "i915_drm.h"
118 * For debugging purposes, this returns a time in seconds.
125 clock_gettime(CLOCK_MONOTONIC
, &tp
);
127 return tp
.tv_sec
+ tp
.tv_nsec
/ 1000000000.0;
130 static const __DRItexBufferExtension intelTexBufferExtension
= {
131 .base
= { __DRI_TEX_BUFFER
, 3 },
133 .setTexBuffer
= intelSetTexBuffer
,
134 .setTexBuffer2
= intelSetTexBuffer2
,
135 .releaseTexBuffer
= intelReleaseTexBuffer
,
139 intel_dri2_flush_with_flags(__DRIcontext
*cPriv
,
140 __DRIdrawable
*dPriv
,
142 enum __DRI2throttleReason reason
)
144 struct brw_context
*brw
= cPriv
->driverPrivate
;
149 struct gl_context
*ctx
= &brw
->ctx
;
151 FLUSH_VERTICES(ctx
, 0);
153 if (flags
& __DRI2_FLUSH_DRAWABLE
)
154 intel_resolve_for_dri2_flush(brw
, dPriv
);
156 if (reason
== __DRI2_THROTTLE_SWAPBUFFER
)
157 brw
->need_swap_throttle
= true;
158 if (reason
== __DRI2_THROTTLE_FLUSHFRONT
)
159 brw
->need_flush_throttle
= true;
161 intel_batchbuffer_flush(brw
);
165 * Provides compatibility with loaders that only support the older (version
166 * 1-3) flush interface.
168 * That includes libGL up to Mesa 9.0, and the X Server at least up to 1.13.
171 intel_dri2_flush(__DRIdrawable
*drawable
)
173 intel_dri2_flush_with_flags(drawable
->driContextPriv
, drawable
,
174 __DRI2_FLUSH_DRAWABLE
,
175 __DRI2_THROTTLE_SWAPBUFFER
);
178 static const struct __DRI2flushExtensionRec intelFlushExtension
= {
179 .base
= { __DRI2_FLUSH
, 4 },
181 .flush
= intel_dri2_flush
,
182 .invalidate
= dri2InvalidateDrawable
,
183 .flush_with_flags
= intel_dri2_flush_with_flags
,
186 static const struct intel_image_format intel_image_formats
[] = {
187 { __DRI_IMAGE_FOURCC_ARGB2101010
, __DRI_IMAGE_COMPONENTS_RGBA
, 1,
188 { { 0, 0, 0, __DRI_IMAGE_FORMAT_ARGB2101010
, 4 } } },
190 { __DRI_IMAGE_FOURCC_XRGB2101010
, __DRI_IMAGE_COMPONENTS_RGB
, 1,
191 { { 0, 0, 0, __DRI_IMAGE_FORMAT_XRGB2101010
, 4 } } },
193 { __DRI_IMAGE_FOURCC_ARGB8888
, __DRI_IMAGE_COMPONENTS_RGBA
, 1,
194 { { 0, 0, 0, __DRI_IMAGE_FORMAT_ARGB8888
, 4 } } },
196 { __DRI_IMAGE_FOURCC_ABGR8888
, __DRI_IMAGE_COMPONENTS_RGBA
, 1,
197 { { 0, 0, 0, __DRI_IMAGE_FORMAT_ABGR8888
, 4 } } },
199 { __DRI_IMAGE_FOURCC_SARGB8888
, __DRI_IMAGE_COMPONENTS_RGBA
, 1,
200 { { 0, 0, 0, __DRI_IMAGE_FORMAT_SARGB8
, 4 } } },
202 { __DRI_IMAGE_FOURCC_XRGB8888
, __DRI_IMAGE_COMPONENTS_RGB
, 1,
203 { { 0, 0, 0, __DRI_IMAGE_FORMAT_XRGB8888
, 4 }, } },
205 { __DRI_IMAGE_FOURCC_XBGR8888
, __DRI_IMAGE_COMPONENTS_RGB
, 1,
206 { { 0, 0, 0, __DRI_IMAGE_FORMAT_XBGR8888
, 4 }, } },
208 { __DRI_IMAGE_FOURCC_ARGB1555
, __DRI_IMAGE_COMPONENTS_RGBA
, 1,
209 { { 0, 0, 0, __DRI_IMAGE_FORMAT_ARGB1555
, 2 } } },
211 { __DRI_IMAGE_FOURCC_RGB565
, __DRI_IMAGE_COMPONENTS_RGB
, 1,
212 { { 0, 0, 0, __DRI_IMAGE_FORMAT_RGB565
, 2 } } },
214 { __DRI_IMAGE_FOURCC_R8
, __DRI_IMAGE_COMPONENTS_R
, 1,
215 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 }, } },
217 { __DRI_IMAGE_FOURCC_R16
, __DRI_IMAGE_COMPONENTS_R
, 1,
218 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R16
, 1 }, } },
220 { __DRI_IMAGE_FOURCC_GR88
, __DRI_IMAGE_COMPONENTS_RG
, 1,
221 { { 0, 0, 0, __DRI_IMAGE_FORMAT_GR88
, 2 }, } },
223 { __DRI_IMAGE_FOURCC_GR1616
, __DRI_IMAGE_COMPONENTS_RG
, 1,
224 { { 0, 0, 0, __DRI_IMAGE_FORMAT_GR1616
, 2 }, } },
226 { __DRI_IMAGE_FOURCC_YUV410
, __DRI_IMAGE_COMPONENTS_Y_U_V
, 3,
227 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
228 { 1, 2, 2, __DRI_IMAGE_FORMAT_R8
, 1 },
229 { 2, 2, 2, __DRI_IMAGE_FORMAT_R8
, 1 } } },
231 { __DRI_IMAGE_FOURCC_YUV411
, __DRI_IMAGE_COMPONENTS_Y_U_V
, 3,
232 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
233 { 1, 2, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
234 { 2, 2, 0, __DRI_IMAGE_FORMAT_R8
, 1 } } },
236 { __DRI_IMAGE_FOURCC_YUV420
, __DRI_IMAGE_COMPONENTS_Y_U_V
, 3,
237 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
238 { 1, 1, 1, __DRI_IMAGE_FORMAT_R8
, 1 },
239 { 2, 1, 1, __DRI_IMAGE_FORMAT_R8
, 1 } } },
241 { __DRI_IMAGE_FOURCC_YUV422
, __DRI_IMAGE_COMPONENTS_Y_U_V
, 3,
242 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
243 { 1, 1, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
244 { 2, 1, 0, __DRI_IMAGE_FORMAT_R8
, 1 } } },
246 { __DRI_IMAGE_FOURCC_YUV444
, __DRI_IMAGE_COMPONENTS_Y_U_V
, 3,
247 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
248 { 1, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
249 { 2, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 } } },
251 { __DRI_IMAGE_FOURCC_YVU410
, __DRI_IMAGE_COMPONENTS_Y_U_V
, 3,
252 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
253 { 2, 2, 2, __DRI_IMAGE_FORMAT_R8
, 1 },
254 { 1, 2, 2, __DRI_IMAGE_FORMAT_R8
, 1 } } },
256 { __DRI_IMAGE_FOURCC_YVU411
, __DRI_IMAGE_COMPONENTS_Y_U_V
, 3,
257 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
258 { 2, 2, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
259 { 1, 2, 0, __DRI_IMAGE_FORMAT_R8
, 1 } } },
261 { __DRI_IMAGE_FOURCC_YVU420
, __DRI_IMAGE_COMPONENTS_Y_U_V
, 3,
262 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
263 { 2, 1, 1, __DRI_IMAGE_FORMAT_R8
, 1 },
264 { 1, 1, 1, __DRI_IMAGE_FORMAT_R8
, 1 } } },
266 { __DRI_IMAGE_FOURCC_YVU422
, __DRI_IMAGE_COMPONENTS_Y_U_V
, 3,
267 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
268 { 2, 1, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
269 { 1, 1, 0, __DRI_IMAGE_FORMAT_R8
, 1 } } },
271 { __DRI_IMAGE_FOURCC_YVU444
, __DRI_IMAGE_COMPONENTS_Y_U_V
, 3,
272 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
273 { 2, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
274 { 1, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 } } },
276 { __DRI_IMAGE_FOURCC_NV12
, __DRI_IMAGE_COMPONENTS_Y_UV
, 2,
277 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
278 { 1, 1, 1, __DRI_IMAGE_FORMAT_GR88
, 2 } } },
280 { __DRI_IMAGE_FOURCC_NV16
, __DRI_IMAGE_COMPONENTS_Y_UV
, 2,
281 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8
, 1 },
282 { 1, 1, 0, __DRI_IMAGE_FORMAT_GR88
, 2 } } },
284 /* For YUYV and UYVY buffers, we set up two overlapping DRI images
285 * and treat them as planar buffers in the compositors.
286 * Plane 0 is GR88 and samples YU or YV pairs and places Y into
287 * the R component, while plane 1 is ARGB/ABGR and samples YUYV/UYVY
288 * clusters and places pairs and places U into the G component and
289 * V into A. This lets the texture sampler interpolate the Y
290 * components correctly when sampling from plane 0, and interpolate
291 * U and V correctly when sampling from plane 1. */
292 { __DRI_IMAGE_FOURCC_YUYV
, __DRI_IMAGE_COMPONENTS_Y_XUXV
, 2,
293 { { 0, 0, 0, __DRI_IMAGE_FORMAT_GR88
, 2 },
294 { 0, 1, 0, __DRI_IMAGE_FORMAT_ARGB8888
, 4 } } },
295 { __DRI_IMAGE_FOURCC_UYVY
, __DRI_IMAGE_COMPONENTS_Y_UXVX
, 2,
296 { { 0, 0, 0, __DRI_IMAGE_FORMAT_GR88
, 2 },
297 { 0, 1, 0, __DRI_IMAGE_FORMAT_ABGR8888
, 4 } } }
300 static const struct {
303 } supported_modifiers
[] = {
304 { .modifier
= DRM_FORMAT_MOD_LINEAR
, .since_gen
= 1 },
305 { .modifier
= I915_FORMAT_MOD_X_TILED
, .since_gen
= 1 },
306 { .modifier
= I915_FORMAT_MOD_Y_TILED
, .since_gen
= 6 },
307 { .modifier
= I915_FORMAT_MOD_Y_TILED_CCS
, .since_gen
= 9 },
311 modifier_is_supported(const struct gen_device_info
*devinfo
,
312 const struct intel_image_format
*fmt
, int dri_format
,
315 const struct isl_drm_modifier_info
*modinfo
=
316 isl_drm_modifier_get_info(modifier
);
319 /* ISL had better know about the modifier */
323 if (modinfo
->aux_usage
== ISL_AUX_USAGE_CCS_E
) {
324 /* If INTEL_DEBUG=norbc is set, don't support any CCS_E modifiers */
325 if (unlikely(INTEL_DEBUG
& DEBUG_NO_RBC
))
328 /* CCS_E is not supported for planar images */
329 if (fmt
&& fmt
->nplanes
> 1)
333 assert(dri_format
== 0);
334 dri_format
= fmt
->planes
[0].dri_format
;
337 mesa_format format
= driImageFormatToGLFormat(dri_format
);
338 format
= _mesa_get_srgb_format_linear(format
);
339 if (!isl_format_supports_ccs_e(devinfo
,
340 brw_isl_format_for_mesa_format(format
)))
344 for (i
= 0; i
< ARRAY_SIZE(supported_modifiers
); i
++) {
345 if (supported_modifiers
[i
].modifier
!= modifier
)
348 return supported_modifiers
[i
].since_gen
<= devinfo
->gen
;
355 tiling_to_modifier(uint32_t tiling
)
357 static const uint64_t map
[] = {
358 [I915_TILING_NONE
] = DRM_FORMAT_MOD_LINEAR
,
359 [I915_TILING_X
] = I915_FORMAT_MOD_X_TILED
,
360 [I915_TILING_Y
] = I915_FORMAT_MOD_Y_TILED
,
363 assert(tiling
< ARRAY_SIZE(map
));
369 intel_image_warn_if_unaligned(__DRIimage
*image
, const char *func
)
371 uint32_t tiling
, swizzle
;
372 brw_bo_get_tiling(image
->bo
, &tiling
, &swizzle
);
374 if (tiling
!= I915_TILING_NONE
&& (image
->offset
& 0xfff)) {
375 _mesa_warning(NULL
, "%s: offset 0x%08x not on tile boundary",
376 func
, image
->offset
);
380 static const struct intel_image_format
*
381 intel_image_format_lookup(int fourcc
)
383 for (unsigned i
= 0; i
< ARRAY_SIZE(intel_image_formats
); i
++) {
384 if (intel_image_formats
[i
].fourcc
== fourcc
)
385 return &intel_image_formats
[i
];
392 intel_image_get_fourcc(__DRIimage
*image
, int *fourcc
)
394 if (image
->planar_format
) {
395 *fourcc
= image
->planar_format
->fourcc
;
399 for (unsigned i
= 0; i
< ARRAY_SIZE(intel_image_formats
); i
++) {
400 if (intel_image_formats
[i
].planes
[0].dri_format
== image
->dri_format
) {
401 *fourcc
= intel_image_formats
[i
].fourcc
;
409 intel_allocate_image(struct intel_screen
*screen
, int dri_format
,
414 image
= calloc(1, sizeof *image
);
418 image
->screen
= screen
;
419 image
->dri_format
= dri_format
;
422 image
->format
= driImageFormatToGLFormat(dri_format
);
423 if (dri_format
!= __DRI_IMAGE_FORMAT_NONE
&&
424 image
->format
== MESA_FORMAT_NONE
) {
429 image
->internal_format
= _mesa_get_format_base_format(image
->format
);
430 image
->data
= loaderPrivate
;
436 * Sets up a DRIImage structure to point to a slice out of a miptree.
439 intel_setup_image_from_mipmap_tree(struct brw_context
*brw
, __DRIimage
*image
,
440 struct intel_mipmap_tree
*mt
, GLuint level
,
443 intel_miptree_make_shareable(brw
, mt
);
445 intel_miptree_check_level_layer(mt
, level
, zoffset
);
447 image
->width
= minify(mt
->surf
.phys_level0_sa
.width
,
448 level
- mt
->first_level
);
449 image
->height
= minify(mt
->surf
.phys_level0_sa
.height
,
450 level
- mt
->first_level
);
451 image
->pitch
= mt
->surf
.row_pitch
;
453 image
->offset
= intel_miptree_get_tile_offsets(mt
, level
, zoffset
,
457 brw_bo_unreference(image
->bo
);
459 brw_bo_reference(mt
->bo
);
463 intel_create_image_from_name(__DRIscreen
*dri_screen
,
464 int width
, int height
, int format
,
465 int name
, int pitch
, void *loaderPrivate
)
467 struct intel_screen
*screen
= dri_screen
->driverPrivate
;
471 image
= intel_allocate_image(screen
, format
, loaderPrivate
);
475 if (image
->format
== MESA_FORMAT_NONE
)
478 cpp
= _mesa_get_format_bytes(image
->format
);
480 image
->width
= width
;
481 image
->height
= height
;
482 image
->pitch
= pitch
* cpp
;
483 image
->bo
= brw_bo_gem_create_from_name(screen
->bufmgr
, "image",
489 image
->modifier
= tiling_to_modifier(image
->bo
->tiling_mode
);
495 intel_create_image_from_renderbuffer(__DRIcontext
*context
,
496 int renderbuffer
, void *loaderPrivate
)
499 struct brw_context
*brw
= context
->driverPrivate
;
500 struct gl_context
*ctx
= &brw
->ctx
;
501 struct gl_renderbuffer
*rb
;
502 struct intel_renderbuffer
*irb
;
504 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
506 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glRenderbufferExternalMESA");
510 irb
= intel_renderbuffer(rb
);
511 intel_miptree_make_shareable(brw
, irb
->mt
);
512 image
= calloc(1, sizeof *image
);
516 image
->internal_format
= rb
->InternalFormat
;
517 image
->format
= rb
->Format
;
518 image
->modifier
= tiling_to_modifier(
519 isl_tiling_to_i915_tiling(irb
->mt
->surf
.tiling
));
521 image
->data
= loaderPrivate
;
522 brw_bo_unreference(image
->bo
);
523 image
->bo
= irb
->mt
->bo
;
524 brw_bo_reference(irb
->mt
->bo
);
525 image
->width
= rb
->Width
;
526 image
->height
= rb
->Height
;
527 image
->pitch
= irb
->mt
->surf
.row_pitch
;
528 image
->dri_format
= driGLFormatToImageFormat(image
->format
);
529 image
->has_depthstencil
= irb
->mt
->stencil_mt
? true : false;
531 rb
->NeedsFinishRenderTexture
= true;
536 intel_create_image_from_texture(__DRIcontext
*context
, int target
,
537 unsigned texture
, int zoffset
,
543 struct brw_context
*brw
= context
->driverPrivate
;
544 struct gl_texture_object
*obj
;
545 struct intel_texture_object
*iobj
;
548 obj
= _mesa_lookup_texture(&brw
->ctx
, texture
);
549 if (!obj
|| obj
->Target
!= target
) {
550 *error
= __DRI_IMAGE_ERROR_BAD_PARAMETER
;
554 if (target
== GL_TEXTURE_CUBE_MAP
)
557 _mesa_test_texobj_completeness(&brw
->ctx
, obj
);
558 iobj
= intel_texture_object(obj
);
559 if (!obj
->_BaseComplete
|| (level
> 0 && !obj
->_MipmapComplete
)) {
560 *error
= __DRI_IMAGE_ERROR_BAD_PARAMETER
;
564 if (level
< obj
->BaseLevel
|| level
> obj
->_MaxLevel
) {
565 *error
= __DRI_IMAGE_ERROR_BAD_MATCH
;
569 if (target
== GL_TEXTURE_3D
&& obj
->Image
[face
][level
]->Depth
< zoffset
) {
570 *error
= __DRI_IMAGE_ERROR_BAD_MATCH
;
573 image
= calloc(1, sizeof *image
);
575 *error
= __DRI_IMAGE_ERROR_BAD_ALLOC
;
579 image
->internal_format
= obj
->Image
[face
][level
]->InternalFormat
;
580 image
->format
= obj
->Image
[face
][level
]->TexFormat
;
581 image
->modifier
= tiling_to_modifier(
582 isl_tiling_to_i915_tiling(iobj
->mt
->surf
.tiling
));
583 image
->data
= loaderPrivate
;
584 intel_setup_image_from_mipmap_tree(brw
, image
, iobj
->mt
, level
, zoffset
);
585 image
->dri_format
= driGLFormatToImageFormat(image
->format
);
586 image
->has_depthstencil
= iobj
->mt
->stencil_mt
? true : false;
587 image
->planar_format
= iobj
->planar_format
;
588 if (image
->dri_format
== MESA_FORMAT_NONE
) {
589 *error
= __DRI_IMAGE_ERROR_BAD_PARAMETER
;
594 *error
= __DRI_IMAGE_ERROR_SUCCESS
;
599 intel_destroy_image(__DRIimage
*image
)
601 brw_bo_unreference(image
->bo
);
605 enum modifier_priority
{
606 MODIFIER_PRIORITY_INVALID
= 0,
607 MODIFIER_PRIORITY_LINEAR
,
610 MODIFIER_PRIORITY_Y_CCS
,
613 const uint64_t priority_to_modifier
[] = {
614 [MODIFIER_PRIORITY_INVALID
] = DRM_FORMAT_MOD_INVALID
,
615 [MODIFIER_PRIORITY_LINEAR
] = DRM_FORMAT_MOD_LINEAR
,
616 [MODIFIER_PRIORITY_X
] = I915_FORMAT_MOD_X_TILED
,
617 [MODIFIER_PRIORITY_Y
] = I915_FORMAT_MOD_Y_TILED
,
618 [MODIFIER_PRIORITY_Y_CCS
] = I915_FORMAT_MOD_Y_TILED_CCS
,
622 select_best_modifier(struct gen_device_info
*devinfo
,
624 const uint64_t *modifiers
,
625 const unsigned count
)
627 enum modifier_priority prio
= MODIFIER_PRIORITY_INVALID
;
629 for (int i
= 0; i
< count
; i
++) {
630 if (!modifier_is_supported(devinfo
, NULL
, dri_format
, modifiers
[i
]))
633 switch (modifiers
[i
]) {
634 case I915_FORMAT_MOD_Y_TILED_CCS
:
635 prio
= MAX2(prio
, MODIFIER_PRIORITY_Y_CCS
);
637 case I915_FORMAT_MOD_Y_TILED
:
638 prio
= MAX2(prio
, MODIFIER_PRIORITY_Y
);
640 case I915_FORMAT_MOD_X_TILED
:
641 prio
= MAX2(prio
, MODIFIER_PRIORITY_X
);
643 case DRM_FORMAT_MOD_LINEAR
:
644 prio
= MAX2(prio
, MODIFIER_PRIORITY_LINEAR
);
646 case DRM_FORMAT_MOD_INVALID
:
652 return priority_to_modifier
[prio
];
656 intel_create_image_common(__DRIscreen
*dri_screen
,
657 int width
, int height
, int format
,
659 const uint64_t *modifiers
,
664 struct intel_screen
*screen
= dri_screen
->driverPrivate
;
665 uint64_t modifier
= DRM_FORMAT_MOD_INVALID
;
668 /* Callers of this may specify a modifier, or a dri usage, but not both. The
669 * newer modifier interface deprecates the older usage flags newer modifier
670 * interface deprecates the older usage flags.
672 assert(!(use
&& count
));
674 if (use
& __DRI_IMAGE_USE_CURSOR
) {
675 if (width
!= 64 || height
!= 64)
677 modifier
= DRM_FORMAT_MOD_LINEAR
;
680 if (use
& __DRI_IMAGE_USE_LINEAR
)
681 modifier
= DRM_FORMAT_MOD_LINEAR
;
683 if (modifier
== DRM_FORMAT_MOD_INVALID
) {
685 /* User requested specific modifiers */
686 modifier
= select_best_modifier(&screen
->devinfo
, format
,
688 if (modifier
== DRM_FORMAT_MOD_INVALID
)
691 /* Historically, X-tiled was the default, and so lack of modifier means
694 modifier
= I915_FORMAT_MOD_X_TILED
;
698 image
= intel_allocate_image(screen
, format
, loaderPrivate
);
702 const struct isl_drm_modifier_info
*mod_info
=
703 isl_drm_modifier_get_info(modifier
);
705 struct isl_surf surf
;
706 ok
= isl_surf_init(&screen
->isl_dev
, &surf
,
707 .dim
= ISL_SURF_DIM_2D
,
708 .format
= brw_isl_format_for_mesa_format(image
->format
),
715 .usage
= ISL_SURF_USAGE_RENDER_TARGET_BIT
|
716 ISL_SURF_USAGE_TEXTURE_BIT
|
717 ISL_SURF_USAGE_STORAGE_BIT
,
718 .tiling_flags
= (1 << mod_info
->tiling
));
725 struct isl_surf aux_surf
;
726 if (mod_info
->aux_usage
== ISL_AUX_USAGE_CCS_E
) {
727 ok
= isl_surf_get_ccs_surf(&screen
->isl_dev
, &surf
, &aux_surf
, 0);
733 assert(mod_info
->aux_usage
== ISL_AUX_USAGE_NONE
);
737 /* We request that the bufmgr zero the buffer for us for two reasons:
739 * 1) If a buffer gets re-used from the pool, we don't want to leak random
740 * garbage from our process to some other.
742 * 2) For images with CCS_E, we want to ensure that the CCS starts off in
743 * a valid state. A CCS value of 0 indicates that the given block is
744 * in the pass-through state which is what we want.
746 image
->bo
= brw_bo_alloc_tiled(screen
->bufmgr
, "image",
747 surf
.size
+ aux_surf
.size
,
748 isl_tiling_to_i915_tiling(mod_info
->tiling
),
749 surf
.row_pitch
, BO_ALLOC_ZEROED
);
750 if (image
->bo
== NULL
) {
754 image
->width
= width
;
755 image
->height
= height
;
756 image
->pitch
= surf
.row_pitch
;
757 image
->modifier
= modifier
;
760 image
->aux_offset
= surf
.size
;
761 image
->aux_pitch
= aux_surf
.row_pitch
;
762 image
->aux_size
= aux_surf
.size
;
769 intel_create_image(__DRIscreen
*dri_screen
,
770 int width
, int height
, int format
,
774 return intel_create_image_common(dri_screen
, width
, height
, format
, use
, NULL
, 0,
779 intel_map_image(__DRIcontext
*context
, __DRIimage
*image
,
780 int x0
, int y0
, int width
, int height
,
781 unsigned int flags
, int *stride
, void **map_info
)
783 struct brw_context
*brw
= NULL
;
784 struct brw_bo
*bo
= NULL
;
785 void *raw_data
= NULL
;
790 if (!context
|| !image
|| !stride
|| !map_info
|| *map_info
)
793 if (x0
< 0 || x0
>= image
->width
|| width
> image
->width
- x0
)
796 if (y0
< 0 || y0
>= image
->height
|| height
> image
->height
- y0
)
799 if (flags
& MAP_INTERNAL_MASK
)
802 brw
= context
->driverPrivate
;
808 /* DRI flags and GL_MAP.*_BIT flags are the same, so just pass them on. */
809 raw_data
= brw_bo_map(brw
, bo
, flags
);
813 _mesa_get_format_block_size(image
->format
, &pix_w
, &pix_h
);
814 pix_bytes
= _mesa_get_format_bytes(image
->format
);
818 assert(pix_bytes
> 0);
820 raw_data
+= (x0
/ pix_w
) * pix_bytes
+ (y0
/ pix_h
) * image
->pitch
;
822 brw_bo_reference(bo
);
824 *stride
= image
->pitch
;
831 intel_unmap_image(__DRIcontext
*context
, __DRIimage
*image
, void *map_info
)
833 struct brw_bo
*bo
= map_info
;
836 brw_bo_unreference(bo
);
840 intel_create_image_with_modifiers(__DRIscreen
*dri_screen
,
841 int width
, int height
, int format
,
842 const uint64_t *modifiers
,
843 const unsigned count
,
846 return intel_create_image_common(dri_screen
, width
, height
, format
, 0,
847 modifiers
, count
, loaderPrivate
);
851 intel_query_image(__DRIimage
*image
, int attrib
, int *value
)
854 case __DRI_IMAGE_ATTRIB_STRIDE
:
855 *value
= image
->pitch
;
857 case __DRI_IMAGE_ATTRIB_HANDLE
:
858 *value
= brw_bo_export_gem_handle(image
->bo
);
860 case __DRI_IMAGE_ATTRIB_NAME
:
861 return !brw_bo_flink(image
->bo
, (uint32_t *) value
);
862 case __DRI_IMAGE_ATTRIB_FORMAT
:
863 *value
= image
->dri_format
;
865 case __DRI_IMAGE_ATTRIB_WIDTH
:
866 *value
= image
->width
;
868 case __DRI_IMAGE_ATTRIB_HEIGHT
:
869 *value
= image
->height
;
871 case __DRI_IMAGE_ATTRIB_COMPONENTS
:
872 if (image
->planar_format
== NULL
)
874 *value
= image
->planar_format
->components
;
876 case __DRI_IMAGE_ATTRIB_FD
:
877 return !brw_bo_gem_export_to_prime(image
->bo
, value
);
878 case __DRI_IMAGE_ATTRIB_FOURCC
:
879 return intel_image_get_fourcc(image
, value
);
880 case __DRI_IMAGE_ATTRIB_NUM_PLANES
:
881 if (isl_drm_modifier_has_aux(image
->modifier
)) {
882 assert(!image
->planar_format
|| image
->planar_format
->nplanes
== 1);
884 } else if (image
->planar_format
) {
885 *value
= image
->planar_format
->nplanes
;
890 case __DRI_IMAGE_ATTRIB_OFFSET
:
891 *value
= image
->offset
;
893 case __DRI_IMAGE_ATTRIB_MODIFIER_LOWER
:
894 *value
= (image
->modifier
& 0xffffffff);
896 case __DRI_IMAGE_ATTRIB_MODIFIER_UPPER
:
897 *value
= ((image
->modifier
>> 32) & 0xffffffff);
906 intel_query_format_modifier_attribs(__DRIscreen
*dri_screen
,
907 uint32_t fourcc
, uint64_t modifier
,
908 int attrib
, uint64_t *value
)
910 struct intel_screen
*screen
= dri_screen
->driverPrivate
;
911 const struct intel_image_format
*f
= intel_image_format_lookup(fourcc
);
913 if (!modifier_is_supported(&screen
->devinfo
, f
, 0, modifier
))
917 case __DRI_IMAGE_FORMAT_MODIFIER_ATTRIB_PLANE_COUNT
:
918 *value
= isl_drm_modifier_has_aux(modifier
) ? 2 : f
->nplanes
;
927 intel_dup_image(__DRIimage
*orig_image
, void *loaderPrivate
)
931 image
= calloc(1, sizeof *image
);
935 brw_bo_reference(orig_image
->bo
);
936 image
->bo
= orig_image
->bo
;
937 image
->internal_format
= orig_image
->internal_format
;
938 image
->planar_format
= orig_image
->planar_format
;
939 image
->dri_format
= orig_image
->dri_format
;
940 image
->format
= orig_image
->format
;
941 image
->modifier
= orig_image
->modifier
;
942 image
->offset
= orig_image
->offset
;
943 image
->width
= orig_image
->width
;
944 image
->height
= orig_image
->height
;
945 image
->pitch
= orig_image
->pitch
;
946 image
->tile_x
= orig_image
->tile_x
;
947 image
->tile_y
= orig_image
->tile_y
;
948 image
->has_depthstencil
= orig_image
->has_depthstencil
;
949 image
->data
= loaderPrivate
;
950 image
->dma_buf_imported
= orig_image
->dma_buf_imported
;
951 image
->aux_offset
= orig_image
->aux_offset
;
952 image
->aux_pitch
= orig_image
->aux_pitch
;
954 memcpy(image
->strides
, orig_image
->strides
, sizeof(image
->strides
));
955 memcpy(image
->offsets
, orig_image
->offsets
, sizeof(image
->offsets
));
961 intel_validate_usage(__DRIimage
*image
, unsigned int use
)
963 if (use
& __DRI_IMAGE_USE_CURSOR
) {
964 if (image
->width
!= 64 || image
->height
!= 64)
972 intel_create_image_from_names(__DRIscreen
*dri_screen
,
973 int width
, int height
, int fourcc
,
974 int *names
, int num_names
,
975 int *strides
, int *offsets
,
978 const struct intel_image_format
*f
= NULL
;
982 if (dri_screen
== NULL
|| names
== NULL
|| num_names
!= 1)
985 f
= intel_image_format_lookup(fourcc
);
989 image
= intel_create_image_from_name(dri_screen
, width
, height
,
990 __DRI_IMAGE_FORMAT_NONE
,
991 names
[0], strides
[0],
997 image
->planar_format
= f
;
998 for (i
= 0; i
< f
->nplanes
; i
++) {
999 index
= f
->planes
[i
].buffer_index
;
1000 image
->offsets
[index
] = offsets
[index
];
1001 image
->strides
[index
] = strides
[index
];
1008 intel_create_image_from_fds_common(__DRIscreen
*dri_screen
,
1009 int width
, int height
, int fourcc
,
1010 uint64_t modifier
, int *fds
, int num_fds
,
1011 int *strides
, int *offsets
,
1012 void *loaderPrivate
)
1014 struct intel_screen
*screen
= dri_screen
->driverPrivate
;
1015 const struct intel_image_format
*f
;
1020 if (fds
== NULL
|| num_fds
< 1)
1023 f
= intel_image_format_lookup(fourcc
);
1027 if (modifier
!= DRM_FORMAT_MOD_INVALID
&&
1028 !modifier_is_supported(&screen
->devinfo
, f
, 0, modifier
))
1031 if (f
->nplanes
== 1)
1032 image
= intel_allocate_image(screen
, f
->planes
[0].dri_format
,
1035 image
= intel_allocate_image(screen
, __DRI_IMAGE_FORMAT_NONE
,
1041 image
->width
= width
;
1042 image
->height
= height
;
1043 image
->pitch
= strides
[0];
1045 image
->planar_format
= f
;
1047 if (modifier
!= DRM_FORMAT_MOD_INVALID
) {
1048 const struct isl_drm_modifier_info
*mod_info
=
1049 isl_drm_modifier_get_info(modifier
);
1050 uint32_t tiling
= isl_tiling_to_i915_tiling(mod_info
->tiling
);
1051 image
->bo
= brw_bo_gem_create_from_prime_tiled(screen
->bufmgr
, fds
[0],
1052 tiling
, strides
[0]);
1054 image
->bo
= brw_bo_gem_create_from_prime(screen
->bufmgr
, fds
[0]);
1057 if (image
->bo
== NULL
) {
1062 /* We only support all planes from the same bo.
1063 * brw_bo_gem_create_from_prime() should return the same pointer for all
1064 * fds received here */
1065 for (i
= 1; i
< num_fds
; i
++) {
1066 struct brw_bo
*aux
= brw_bo_gem_create_from_prime(screen
->bufmgr
, fds
[i
]);
1067 brw_bo_unreference(aux
);
1068 if (aux
!= image
->bo
) {
1069 brw_bo_unreference(image
->bo
);
1075 if (modifier
!= DRM_FORMAT_MOD_INVALID
)
1076 image
->modifier
= modifier
;
1078 image
->modifier
= tiling_to_modifier(image
->bo
->tiling_mode
);
1080 const struct isl_drm_modifier_info
*mod_info
=
1081 isl_drm_modifier_get_info(image
->modifier
);
1084 struct isl_surf surf
;
1085 for (i
= 0; i
< f
->nplanes
; i
++) {
1086 index
= f
->planes
[i
].buffer_index
;
1087 image
->offsets
[index
] = offsets
[index
];
1088 image
->strides
[index
] = strides
[index
];
1090 mesa_format format
= driImageFormatToGLFormat(f
->planes
[i
].dri_format
);
1092 ok
= isl_surf_init(&screen
->isl_dev
, &surf
,
1093 .dim
= ISL_SURF_DIM_2D
,
1094 .format
= brw_isl_format_for_mesa_format(format
),
1095 .width
= image
->width
>> f
->planes
[i
].width_shift
,
1096 .height
= image
->height
>> f
->planes
[i
].height_shift
,
1101 .row_pitch
= strides
[index
],
1102 .usage
= ISL_SURF_USAGE_RENDER_TARGET_BIT
|
1103 ISL_SURF_USAGE_TEXTURE_BIT
|
1104 ISL_SURF_USAGE_STORAGE_BIT
,
1105 .tiling_flags
= (1 << mod_info
->tiling
));
1107 brw_bo_unreference(image
->bo
);
1112 const int end
= offsets
[index
] + surf
.size
;
1117 if (mod_info
->aux_usage
== ISL_AUX_USAGE_CCS_E
) {
1118 /* Even though we initialize surf in the loop above, we know that
1119 * anything with CCS_E will have exactly one plane so surf is properly
1120 * initialized when we get here.
1122 assert(f
->nplanes
== 1);
1124 image
->aux_offset
= offsets
[1];
1125 image
->aux_pitch
= strides
[1];
1127 /* Scanout hardware requires that the CCS be placed after the main
1128 * surface in memory. We consider any CCS that is placed any earlier in
1129 * memory to be invalid and reject it.
1131 * At some point in the future, this restriction may be relaxed if the
1132 * hardware becomes less strict but we may need a new modifier for that.
1135 if (image
->aux_offset
< size
) {
1136 brw_bo_unreference(image
->bo
);
1141 struct isl_surf aux_surf
;
1142 ok
= isl_surf_get_ccs_surf(&screen
->isl_dev
, &surf
, &aux_surf
,
1145 brw_bo_unreference(image
->bo
);
1150 image
->aux_size
= aux_surf
.size
;
1152 const int end
= image
->aux_offset
+ aux_surf
.size
;
1156 assert(mod_info
->aux_usage
== ISL_AUX_USAGE_NONE
);
1159 /* Check that the requested image actually fits within the BO. 'size'
1160 * is already relative to the offsets, so we don't need to add that. */
1161 if (image
->bo
->size
== 0) {
1162 image
->bo
->size
= size
;
1163 } else if (size
> image
->bo
->size
) {
1164 brw_bo_unreference(image
->bo
);
1169 if (f
->nplanes
== 1) {
1170 image
->offset
= image
->offsets
[0];
1171 intel_image_warn_if_unaligned(image
, __func__
);
1178 intel_create_image_from_fds(__DRIscreen
*dri_screen
,
1179 int width
, int height
, int fourcc
,
1180 int *fds
, int num_fds
, int *strides
, int *offsets
,
1181 void *loaderPrivate
)
1183 return intel_create_image_from_fds_common(dri_screen
, width
, height
, fourcc
,
1184 DRM_FORMAT_MOD_INVALID
,
1185 fds
, num_fds
, strides
, offsets
,
1190 intel_create_image_from_dma_bufs2(__DRIscreen
*dri_screen
,
1191 int width
, int height
,
1192 int fourcc
, uint64_t modifier
,
1193 int *fds
, int num_fds
,
1194 int *strides
, int *offsets
,
1195 enum __DRIYUVColorSpace yuv_color_space
,
1196 enum __DRISampleRange sample_range
,
1197 enum __DRIChromaSiting horizontal_siting
,
1198 enum __DRIChromaSiting vertical_siting
,
1200 void *loaderPrivate
)
1203 const struct intel_image_format
*f
= intel_image_format_lookup(fourcc
);
1206 *error
= __DRI_IMAGE_ERROR_BAD_MATCH
;
1210 image
= intel_create_image_from_fds_common(dri_screen
, width
, height
,
1212 fds
, num_fds
, strides
, offsets
,
1216 * Invalid parameters and any inconsistencies between are assumed to be
1217 * checked by the caller. Therefore besides unsupported formats one can fail
1218 * only in allocation.
1221 *error
= __DRI_IMAGE_ERROR_BAD_ALLOC
;
1225 image
->dma_buf_imported
= true;
1226 image
->yuv_color_space
= yuv_color_space
;
1227 image
->sample_range
= sample_range
;
1228 image
->horizontal_siting
= horizontal_siting
;
1229 image
->vertical_siting
= vertical_siting
;
1231 *error
= __DRI_IMAGE_ERROR_SUCCESS
;
1236 intel_create_image_from_dma_bufs(__DRIscreen
*dri_screen
,
1237 int width
, int height
, int fourcc
,
1238 int *fds
, int num_fds
,
1239 int *strides
, int *offsets
,
1240 enum __DRIYUVColorSpace yuv_color_space
,
1241 enum __DRISampleRange sample_range
,
1242 enum __DRIChromaSiting horizontal_siting
,
1243 enum __DRIChromaSiting vertical_siting
,
1245 void *loaderPrivate
)
1247 return intel_create_image_from_dma_bufs2(dri_screen
, width
, height
,
1248 fourcc
, DRM_FORMAT_MOD_INVALID
,
1249 fds
, num_fds
, strides
, offsets
,
1259 intel_query_dma_buf_formats(__DRIscreen
*screen
, int max
,
1260 int *formats
, int *count
)
1265 *count
= ARRAY_SIZE(intel_image_formats
) - 1; /* not SARGB */
1269 for (i
= 0; i
< (ARRAY_SIZE(intel_image_formats
)) && j
< max
; i
++) {
1270 if (intel_image_formats
[i
].fourcc
== __DRI_IMAGE_FOURCC_SARGB8888
)
1272 formats
[j
++] = intel_image_formats
[i
].fourcc
;
1280 intel_query_dma_buf_modifiers(__DRIscreen
*_screen
, int fourcc
, int max
,
1281 uint64_t *modifiers
,
1282 unsigned int *external_only
,
1285 struct intel_screen
*screen
= _screen
->driverPrivate
;
1286 const struct intel_image_format
*f
;
1287 int num_mods
= 0, i
;
1289 f
= intel_image_format_lookup(fourcc
);
1293 for (i
= 0; i
< ARRAY_SIZE(supported_modifiers
); i
++) {
1294 uint64_t modifier
= supported_modifiers
[i
].modifier
;
1295 if (!modifier_is_supported(&screen
->devinfo
, f
, 0, modifier
))
1302 modifiers
[num_mods
- 1] = modifier
;
1303 if (num_mods
>= max
)
1307 if (external_only
!= NULL
) {
1308 for (i
= 0; i
< num_mods
&& i
< max
; i
++) {
1309 if (f
->components
== __DRI_IMAGE_COMPONENTS_Y_U_V
||
1310 f
->components
== __DRI_IMAGE_COMPONENTS_Y_UV
||
1311 f
->components
== __DRI_IMAGE_COMPONENTS_Y_XUXV
) {
1312 external_only
[i
] = GL_TRUE
;
1315 external_only
[i
] = GL_FALSE
;
1325 intel_from_planar(__DRIimage
*parent
, int plane
, void *loaderPrivate
)
1327 int width
, height
, offset
, stride
, size
, dri_format
;
1333 width
= parent
->width
;
1334 height
= parent
->height
;
1336 const struct intel_image_format
*f
= parent
->planar_format
;
1338 if (f
&& plane
< f
->nplanes
) {
1339 /* Use the planar format definition. */
1340 width
>>= f
->planes
[plane
].width_shift
;
1341 height
>>= f
->planes
[plane
].height_shift
;
1342 dri_format
= f
->planes
[plane
].dri_format
;
1343 int index
= f
->planes
[plane
].buffer_index
;
1344 offset
= parent
->offsets
[index
];
1345 stride
= parent
->strides
[index
];
1346 size
= height
* stride
;
1347 } else if (plane
== 0) {
1348 /* The only plane of a non-planar image: copy the parent definition
1350 dri_format
= parent
->dri_format
;
1351 offset
= parent
->offset
;
1352 stride
= parent
->pitch
;
1353 size
= height
* stride
;
1354 } else if (plane
== 1 && parent
->modifier
!= DRM_FORMAT_MOD_INVALID
&&
1355 isl_drm_modifier_has_aux(parent
->modifier
)) {
1356 /* Auxiliary plane */
1357 dri_format
= parent
->dri_format
;
1358 offset
= parent
->aux_offset
;
1359 stride
= parent
->aux_pitch
;
1360 size
= parent
->aux_size
;
1365 if (offset
+ size
> parent
->bo
->size
) {
1366 _mesa_warning(NULL
, "intel_from_planar: subimage out of bounds");
1370 image
= intel_allocate_image(parent
->screen
, dri_format
, loaderPrivate
);
1374 image
->bo
= parent
->bo
;
1375 brw_bo_reference(parent
->bo
);
1376 image
->modifier
= parent
->modifier
;
1378 image
->width
= width
;
1379 image
->height
= height
;
1380 image
->pitch
= stride
;
1381 image
->offset
= offset
;
1383 intel_image_warn_if_unaligned(image
, __func__
);
1388 static const __DRIimageExtension intelImageExtension
= {
1389 .base
= { __DRI_IMAGE
, 16 },
1391 .createImageFromName
= intel_create_image_from_name
,
1392 .createImageFromRenderbuffer
= intel_create_image_from_renderbuffer
,
1393 .destroyImage
= intel_destroy_image
,
1394 .createImage
= intel_create_image
,
1395 .queryImage
= intel_query_image
,
1396 .dupImage
= intel_dup_image
,
1397 .validateUsage
= intel_validate_usage
,
1398 .createImageFromNames
= intel_create_image_from_names
,
1399 .fromPlanar
= intel_from_planar
,
1400 .createImageFromTexture
= intel_create_image_from_texture
,
1401 .createImageFromFds
= intel_create_image_from_fds
,
1402 .createImageFromDmaBufs
= intel_create_image_from_dma_bufs
,
1404 .getCapabilities
= NULL
,
1405 .mapImage
= intel_map_image
,
1406 .unmapImage
= intel_unmap_image
,
1407 .createImageWithModifiers
= intel_create_image_with_modifiers
,
1408 .createImageFromDmaBufs2
= intel_create_image_from_dma_bufs2
,
1409 .queryDmaBufFormats
= intel_query_dma_buf_formats
,
1410 .queryDmaBufModifiers
= intel_query_dma_buf_modifiers
,
1411 .queryDmaBufFormatModifierAttribs
= intel_query_format_modifier_attribs
,
1415 get_aperture_size(int fd
)
1417 struct drm_i915_gem_get_aperture aperture
;
1419 if (drmIoctl(fd
, DRM_IOCTL_I915_GEM_GET_APERTURE
, &aperture
) != 0)
1422 return aperture
.aper_size
;
1426 brw_query_renderer_integer(__DRIscreen
*dri_screen
,
1427 int param
, unsigned int *value
)
1429 const struct intel_screen
*const screen
=
1430 (struct intel_screen
*) dri_screen
->driverPrivate
;
1433 case __DRI2_RENDERER_VENDOR_ID
:
1436 case __DRI2_RENDERER_DEVICE_ID
:
1437 value
[0] = screen
->deviceID
;
1439 case __DRI2_RENDERER_ACCELERATED
:
1442 case __DRI2_RENDERER_VIDEO_MEMORY
: {
1443 /* Once a batch uses more than 75% of the maximum mappable size, we
1444 * assume that there's some fragmentation, and we start doing extra
1445 * flushing, etc. That's the big cliff apps will care about.
1447 const unsigned gpu_mappable_megabytes
=
1448 screen
->aperture_threshold
/ (1024 * 1024);
1450 const long system_memory_pages
= sysconf(_SC_PHYS_PAGES
);
1451 const long system_page_size
= sysconf(_SC_PAGE_SIZE
);
1453 if (system_memory_pages
<= 0 || system_page_size
<= 0)
1456 const uint64_t system_memory_bytes
= (uint64_t) system_memory_pages
1457 * (uint64_t) system_page_size
;
1459 const unsigned system_memory_megabytes
=
1460 (unsigned) (system_memory_bytes
/ (1024 * 1024));
1462 value
[0] = MIN2(system_memory_megabytes
, gpu_mappable_megabytes
);
1465 case __DRI2_RENDERER_UNIFIED_MEMORY_ARCHITECTURE
:
1468 case __DRI2_RENDERER_HAS_TEXTURE_3D
:
1471 case __DRI2_RENDERER_HAS_CONTEXT_PRIORITY
:
1473 if (brw_hw_context_set_priority(screen
->bufmgr
,
1474 0, GEN_CONTEXT_HIGH_PRIORITY
) == 0)
1475 value
[0] |= __DRI2_RENDERER_HAS_CONTEXT_PRIORITY_HIGH
;
1476 if (brw_hw_context_set_priority(screen
->bufmgr
,
1477 0, GEN_CONTEXT_LOW_PRIORITY
) == 0)
1478 value
[0] |= __DRI2_RENDERER_HAS_CONTEXT_PRIORITY_LOW
;
1479 /* reset to default last, just in case */
1480 if (brw_hw_context_set_priority(screen
->bufmgr
,
1481 0, GEN_CONTEXT_MEDIUM_PRIORITY
) == 0)
1482 value
[0] |= __DRI2_RENDERER_HAS_CONTEXT_PRIORITY_MEDIUM
;
1484 case __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB
:
1488 return driQueryRendererIntegerCommon(dri_screen
, param
, value
);
1495 brw_query_renderer_string(__DRIscreen
*dri_screen
,
1496 int param
, const char **value
)
1498 const struct intel_screen
*screen
=
1499 (struct intel_screen
*) dri_screen
->driverPrivate
;
1502 case __DRI2_RENDERER_VENDOR_ID
:
1503 value
[0] = brw_vendor_string
;
1505 case __DRI2_RENDERER_DEVICE_ID
:
1506 value
[0] = brw_get_renderer_string(screen
);
1516 brw_set_cache_funcs(__DRIscreen
*dri_screen
,
1517 __DRIblobCacheSet set
, __DRIblobCacheGet get
)
1519 const struct intel_screen
*const screen
=
1520 (struct intel_screen
*) dri_screen
->driverPrivate
;
1522 if (!screen
->disk_cache
)
1525 disk_cache_set_callbacks(screen
->disk_cache
, set
, get
);
1528 static const __DRI2rendererQueryExtension intelRendererQueryExtension
= {
1529 .base
= { __DRI2_RENDERER_QUERY
, 1 },
1531 .queryInteger
= brw_query_renderer_integer
,
1532 .queryString
= brw_query_renderer_string
1535 static const __DRIrobustnessExtension dri2Robustness
= {
1536 .base
= { __DRI2_ROBUSTNESS
, 1 }
1539 static const __DRI2blobExtension intelBlobExtension
= {
1540 .base
= { __DRI2_BLOB
, 1 },
1541 .set_cache_funcs
= brw_set_cache_funcs
1544 static const __DRIextension
*screenExtensions
[] = {
1545 &intelTexBufferExtension
.base
,
1546 &intelFenceExtension
.base
,
1547 &intelFlushExtension
.base
,
1548 &intelImageExtension
.base
,
1549 &intelRendererQueryExtension
.base
,
1550 &dri2ConfigQueryExtension
.base
,
1551 &dri2NoErrorExtension
.base
,
1552 &intelBlobExtension
.base
,
1556 static const __DRIextension
*intelRobustScreenExtensions
[] = {
1557 &intelTexBufferExtension
.base
,
1558 &intelFenceExtension
.base
,
1559 &intelFlushExtension
.base
,
1560 &intelImageExtension
.base
,
1561 &intelRendererQueryExtension
.base
,
1562 &dri2ConfigQueryExtension
.base
,
1563 &dri2Robustness
.base
,
1564 &dri2NoErrorExtension
.base
,
1565 &intelBlobExtension
.base
,
1570 intel_get_param(struct intel_screen
*screen
, int param
, int *value
)
1573 struct drm_i915_getparam gp
;
1575 memset(&gp
, 0, sizeof(gp
));
1579 if (drmIoctl(screen
->driScrnPriv
->fd
, DRM_IOCTL_I915_GETPARAM
, &gp
) == -1) {
1582 _mesa_warning(NULL
, "drm_i915_getparam: %d", ret
);
1589 intel_get_boolean(struct intel_screen
*screen
, int param
)
1592 return (intel_get_param(screen
, param
, &value
) == 0) && value
;
1596 intel_get_integer(struct intel_screen
*screen
, int param
)
1600 if (intel_get_param(screen
, param
, &value
) == 0)
1607 intelDestroyScreen(__DRIscreen
* sPriv
)
1609 struct intel_screen
*screen
= sPriv
->driverPrivate
;
1611 brw_bufmgr_destroy(screen
->bufmgr
);
1612 driDestroyOptionInfo(&screen
->optionCache
);
1614 disk_cache_destroy(screen
->disk_cache
);
1616 ralloc_free(screen
);
1617 sPriv
->driverPrivate
= NULL
;
1622 * Create a gl_framebuffer and attach it to __DRIdrawable::driverPrivate.
1624 *_This implements driDriverAPI::createNewDrawable, which the DRI layer calls
1625 * when creating a EGLSurface, GLXDrawable, or GLXPixmap. Despite the name,
1626 * this does not allocate GPU memory.
1629 intelCreateBuffer(__DRIscreen
*dri_screen
,
1630 __DRIdrawable
* driDrawPriv
,
1631 const struct gl_config
* mesaVis
, GLboolean isPixmap
)
1633 struct intel_renderbuffer
*rb
;
1634 struct intel_screen
*screen
= (struct intel_screen
*)
1635 dri_screen
->driverPrivate
;
1636 mesa_format rgbFormat
;
1637 unsigned num_samples
=
1638 intel_quantize_num_samples(screen
, mesaVis
->samples
);
1643 struct gl_framebuffer
*fb
= CALLOC_STRUCT(gl_framebuffer
);
1647 _mesa_initialize_window_framebuffer(fb
, mesaVis
);
1649 if (screen
->winsys_msaa_samples_override
!= -1) {
1650 num_samples
= screen
->winsys_msaa_samples_override
;
1651 fb
->Visual
.samples
= num_samples
;
1654 if (mesaVis
->redBits
== 10 && mesaVis
->alphaBits
> 0) {
1655 rgbFormat
= mesaVis
->redMask
== 0x3ff00000 ? MESA_FORMAT_B10G10R10A2_UNORM
1656 : MESA_FORMAT_R10G10B10A2_UNORM
;
1657 } else if (mesaVis
->redBits
== 10) {
1658 rgbFormat
= mesaVis
->redMask
== 0x3ff00000 ? MESA_FORMAT_B10G10R10X2_UNORM
1659 : MESA_FORMAT_R10G10B10X2_UNORM
;
1660 } else if (mesaVis
->redBits
== 5) {
1661 rgbFormat
= mesaVis
->redMask
== 0x1f ? MESA_FORMAT_R5G6B5_UNORM
1662 : MESA_FORMAT_B5G6R5_UNORM
;
1663 } else if (mesaVis
->sRGBCapable
) {
1664 rgbFormat
= mesaVis
->redMask
== 0xff ? MESA_FORMAT_R8G8B8A8_SRGB
1665 : MESA_FORMAT_B8G8R8A8_SRGB
;
1666 } else if (mesaVis
->alphaBits
== 0) {
1667 rgbFormat
= mesaVis
->redMask
== 0xff ? MESA_FORMAT_R8G8B8X8_UNORM
1668 : MESA_FORMAT_B8G8R8X8_UNORM
;
1670 rgbFormat
= mesaVis
->redMask
== 0xff ? MESA_FORMAT_R8G8B8A8_SRGB
1671 : MESA_FORMAT_B8G8R8A8_SRGB
;
1672 fb
->Visual
.sRGBCapable
= true;
1675 /* mesaVis->sRGBCapable was set, user is asking for sRGB */
1676 bool srgb_cap_set
= mesaVis
->redBits
>= 8 && mesaVis
->sRGBCapable
;
1678 /* setup the hardware-based renderbuffers */
1679 rb
= intel_create_winsys_renderbuffer(screen
, rgbFormat
, num_samples
);
1680 _mesa_attach_and_own_rb(fb
, BUFFER_FRONT_LEFT
, &rb
->Base
.Base
);
1681 rb
->need_srgb
= srgb_cap_set
;
1683 if (mesaVis
->doubleBufferMode
) {
1684 rb
= intel_create_winsys_renderbuffer(screen
, rgbFormat
, num_samples
);
1685 _mesa_attach_and_own_rb(fb
, BUFFER_BACK_LEFT
, &rb
->Base
.Base
);
1686 rb
->need_srgb
= srgb_cap_set
;
1690 * Assert here that the gl_config has an expected depth/stencil bit
1691 * combination: one of d24/s8, d16/s0, d0/s0. (See intelInitScreen2(),
1692 * which constructs the advertised configs.)
1694 if (mesaVis
->depthBits
== 24) {
1695 assert(mesaVis
->stencilBits
== 8);
1697 if (screen
->devinfo
.has_hiz_and_separate_stencil
) {
1698 rb
= intel_create_private_renderbuffer(screen
,
1699 MESA_FORMAT_Z24_UNORM_X8_UINT
,
1701 _mesa_attach_and_own_rb(fb
, BUFFER_DEPTH
, &rb
->Base
.Base
);
1702 rb
= intel_create_private_renderbuffer(screen
, MESA_FORMAT_S_UINT8
,
1704 _mesa_attach_and_own_rb(fb
, BUFFER_STENCIL
, &rb
->Base
.Base
);
1707 * Use combined depth/stencil. Note that the renderbuffer is
1708 * attached to two attachment points.
1710 rb
= intel_create_private_renderbuffer(screen
,
1711 MESA_FORMAT_Z24_UNORM_S8_UINT
,
1713 _mesa_attach_and_own_rb(fb
, BUFFER_DEPTH
, &rb
->Base
.Base
);
1714 _mesa_attach_and_reference_rb(fb
, BUFFER_STENCIL
, &rb
->Base
.Base
);
1717 else if (mesaVis
->depthBits
== 16) {
1718 assert(mesaVis
->stencilBits
== 0);
1719 rb
= intel_create_private_renderbuffer(screen
, MESA_FORMAT_Z_UNORM16
,
1721 _mesa_attach_and_own_rb(fb
, BUFFER_DEPTH
, &rb
->Base
.Base
);
1724 assert(mesaVis
->depthBits
== 0);
1725 assert(mesaVis
->stencilBits
== 0);
1728 /* now add any/all software-based renderbuffers we may need */
1729 _swrast_add_soft_renderbuffers(fb
,
1730 false, /* never sw color */
1731 false, /* never sw depth */
1732 false, /* never sw stencil */
1733 mesaVis
->accumRedBits
> 0,
1734 false, /* never sw alpha */
1735 false /* never sw aux */ );
1736 driDrawPriv
->driverPrivate
= fb
;
1742 intelDestroyBuffer(__DRIdrawable
* driDrawPriv
)
1744 struct gl_framebuffer
*fb
= driDrawPriv
->driverPrivate
;
1746 _mesa_reference_framebuffer(&fb
, NULL
);
1750 intel_cs_timestamp_frequency(struct intel_screen
*screen
)
1752 /* We shouldn't need to update gen_device_info.timestamp_frequency prior to
1753 * gen10, PCI-id is enough to figure it out.
1755 assert(screen
->devinfo
.gen
>= 10);
1759 ret
= intel_get_param(screen
, I915_PARAM_CS_TIMESTAMP_FREQUENCY
,
1763 "Kernel 4.15 required to read the CS timestamp frequency.\n");
1767 screen
->devinfo
.timestamp_frequency
= freq
;
1771 intel_detect_sseu(struct intel_screen
*screen
)
1773 assert(screen
->devinfo
.gen
>= 8);
1776 screen
->subslice_total
= -1;
1777 screen
->eu_total
= -1;
1779 ret
= intel_get_param(screen
, I915_PARAM_SUBSLICE_TOTAL
,
1780 &screen
->subslice_total
);
1781 if (ret
< 0 && ret
!= -EINVAL
)
1784 ret
= intel_get_param(screen
,
1785 I915_PARAM_EU_TOTAL
, &screen
->eu_total
);
1786 if (ret
< 0 && ret
!= -EINVAL
)
1789 /* Without this information, we cannot get the right Braswell brandstrings,
1790 * and we have to use conservative numbers for GPGPU on many platforms, but
1791 * otherwise, things will just work.
1793 if (screen
->subslice_total
< 1 || screen
->eu_total
< 1)
1795 "Kernel 4.1 required to properly query GPU properties.\n");
1800 screen
->subslice_total
= -1;
1801 screen
->eu_total
= -1;
1802 _mesa_warning(NULL
, "Failed to query GPU properties (%s).\n", strerror(-ret
));
1806 intel_init_bufmgr(struct intel_screen
*screen
)
1808 __DRIscreen
*dri_screen
= screen
->driScrnPriv
;
1810 if (getenv("INTEL_NO_HW") != NULL
)
1811 screen
->no_hw
= true;
1813 screen
->bufmgr
= brw_bufmgr_init(&screen
->devinfo
, dri_screen
->fd
);
1814 if (screen
->bufmgr
== NULL
) {
1815 fprintf(stderr
, "[%s:%u] Error initializing buffer manager.\n",
1816 __func__
, __LINE__
);
1820 if (!intel_get_boolean(screen
, I915_PARAM_HAS_EXEC_NO_RELOC
)) {
1821 fprintf(stderr
, "[%s: %u] Kernel 3.9 required.\n", __func__
, __LINE__
);
1829 intel_detect_swizzling(struct intel_screen
*screen
)
1831 struct brw_bo
*buffer
;
1833 uint32_t aligned_pitch
;
1834 uint32_t tiling
= I915_TILING_X
;
1835 uint32_t swizzle_mode
= 0;
1837 buffer
= brw_bo_alloc_tiled_2d(screen
->bufmgr
, "swizzle test",
1838 64, 64, 4, tiling
, &aligned_pitch
, flags
);
1842 brw_bo_get_tiling(buffer
, &tiling
, &swizzle_mode
);
1843 brw_bo_unreference(buffer
);
1845 if (swizzle_mode
== I915_BIT_6_SWIZZLE_NONE
)
1852 intel_detect_timestamp(struct intel_screen
*screen
)
1854 uint64_t dummy
= 0, last
= 0;
1855 int upper
, lower
, loops
;
1857 /* On 64bit systems, some old kernels trigger a hw bug resulting in the
1858 * TIMESTAMP register being shifted and the low 32bits always zero.
1860 * More recent kernels offer an interface to read the full 36bits
1863 if (brw_reg_read(screen
->bufmgr
, TIMESTAMP
| 1, &dummy
) == 0)
1866 /* Determine if we have a 32bit or 64bit kernel by inspecting the
1867 * upper 32bits for a rapidly changing timestamp.
1869 if (brw_reg_read(screen
->bufmgr
, TIMESTAMP
, &last
))
1873 for (loops
= 0; loops
< 10; loops
++) {
1874 /* The TIMESTAMP should change every 80ns, so several round trips
1875 * through the kernel should be enough to advance it.
1877 if (brw_reg_read(screen
->bufmgr
, TIMESTAMP
, &dummy
))
1880 upper
+= (dummy
>> 32) != (last
>> 32);
1881 if (upper
> 1) /* beware 32bit counter overflow */
1882 return 2; /* upper dword holds the low 32bits of the timestamp */
1884 lower
+= (dummy
& 0xffffffff) != (last
& 0xffffffff);
1886 return 1; /* timestamp is unshifted */
1891 /* No advancement? No timestamp! */
1896 * Test if we can use MI_LOAD_REGISTER_MEM from an untrusted batchbuffer.
1898 * Some combinations of hardware and kernel versions allow this feature,
1899 * while others don't. Instead of trying to enumerate every case, just
1900 * try and write a register and see if works.
1903 intel_detect_pipelined_register(struct intel_screen
*screen
,
1904 int reg
, uint32_t expected_value
, bool reset
)
1909 struct brw_bo
*results
, *bo
;
1911 uint32_t offset
= 0;
1913 bool success
= false;
1915 /* Create a zero'ed temporary buffer for reading our results */
1916 results
= brw_bo_alloc(screen
->bufmgr
, "registers", 4096);
1917 if (results
== NULL
)
1920 bo
= brw_bo_alloc(screen
->bufmgr
, "batchbuffer", 4096);
1924 map
= brw_bo_map(NULL
, bo
, MAP_WRITE
);
1930 /* Write the register. */
1931 *batch
++ = MI_LOAD_REGISTER_IMM
| (3 - 2);
1933 *batch
++ = expected_value
;
1935 /* Save the register's value back to the buffer. */
1936 *batch
++ = MI_STORE_REGISTER_MEM
| (3 - 2);
1938 struct drm_i915_gem_relocation_entry reloc
= {
1939 .offset
= (char *) batch
- (char *) map
,
1940 .delta
= offset
* sizeof(uint32_t),
1941 .target_handle
= results
->gem_handle
,
1942 .read_domains
= I915_GEM_DOMAIN_INSTRUCTION
,
1943 .write_domain
= I915_GEM_DOMAIN_INSTRUCTION
,
1945 *batch
++ = reloc
.presumed_offset
+ reloc
.delta
;
1947 /* And afterwards clear the register */
1949 *batch
++ = MI_LOAD_REGISTER_IMM
| (3 - 2);
1954 *batch
++ = MI_BATCH_BUFFER_END
;
1956 struct drm_i915_gem_exec_object2 exec_objects
[2] = {
1958 .handle
= results
->gem_handle
,
1961 .handle
= bo
->gem_handle
,
1962 .relocation_count
= 1,
1963 .relocs_ptr
= (uintptr_t) &reloc
,
1967 struct drm_i915_gem_execbuffer2 execbuf
= {
1968 .buffers_ptr
= (uintptr_t) exec_objects
,
1970 .batch_len
= ALIGN((char *) batch
- (char *) map
, 8),
1971 .flags
= I915_EXEC_RENDER
,
1974 /* Don't bother with error checking - if the execbuf fails, the
1975 * value won't be written and we'll just report that there's no access.
1977 __DRIscreen
*dri_screen
= screen
->driScrnPriv
;
1978 drmIoctl(dri_screen
->fd
, DRM_IOCTL_I915_GEM_EXECBUFFER2
, &execbuf
);
1980 /* Check whether the value got written. */
1981 void *results_map
= brw_bo_map(NULL
, results
, MAP_READ
);
1983 success
= *((uint32_t *)results_map
+ offset
) == expected_value
;
1984 brw_bo_unmap(results
);
1988 brw_bo_unreference(bo
);
1990 brw_bo_unreference(results
);
1996 intel_detect_pipelined_so(struct intel_screen
*screen
)
1998 const struct gen_device_info
*devinfo
= &screen
->devinfo
;
2000 /* Supposedly, Broadwell just works. */
2001 if (devinfo
->gen
>= 8)
2004 if (devinfo
->gen
<= 6)
2007 /* See the big explanation about command parser versions below */
2008 if (screen
->cmd_parser_version
>= (devinfo
->is_haswell
? 7 : 2))
2011 /* We use SO_WRITE_OFFSET0 since you're supposed to write it (unlike the
2012 * statistics registers), and we already reset it to zero before using it.
2014 return intel_detect_pipelined_register(screen
,
2015 GEN7_SO_WRITE_OFFSET(0),
2021 * Return array of MSAA modes supported by the hardware. The array is
2022 * zero-terminated and sorted in decreasing order.
2025 intel_supported_msaa_modes(const struct intel_screen
*screen
)
2027 static const int gen9_modes
[] = {16, 8, 4, 2, 0, -1};
2028 static const int gen8_modes
[] = {8, 4, 2, 0, -1};
2029 static const int gen7_modes
[] = {8, 4, 0, -1};
2030 static const int gen6_modes
[] = {4, 0, -1};
2031 static const int gen4_modes
[] = {0, -1};
2033 if (screen
->devinfo
.gen
>= 9) {
2035 } else if (screen
->devinfo
.gen
>= 8) {
2037 } else if (screen
->devinfo
.gen
>= 7) {
2039 } else if (screen
->devinfo
.gen
== 6) {
2047 intel_loader_get_cap(const __DRIscreen
*dri_screen
, enum dri_loader_cap cap
)
2049 if (dri_screen
->dri2
.loader
&& dri_screen
->dri2
.loader
->base
.version
>= 4 &&
2050 dri_screen
->dri2
.loader
->getCapability
)
2051 return dri_screen
->dri2
.loader
->getCapability(dri_screen
->loaderPrivate
, cap
);
2053 if (dri_screen
->image
.loader
&& dri_screen
->image
.loader
->base
.version
>= 2 &&
2054 dri_screen
->image
.loader
->getCapability
)
2055 return dri_screen
->image
.loader
->getCapability(dri_screen
->loaderPrivate
, cap
);
2060 static __DRIconfig
**
2061 intel_screen_make_configs(__DRIscreen
*dri_screen
)
2063 static const mesa_format formats
[] = {
2064 MESA_FORMAT_B5G6R5_UNORM
,
2065 MESA_FORMAT_B8G8R8A8_UNORM
,
2066 MESA_FORMAT_B8G8R8X8_UNORM
,
2068 MESA_FORMAT_B8G8R8A8_SRGB
,
2070 /* For 10 bpc, 30 bit depth framebuffers. */
2071 MESA_FORMAT_B10G10R10A2_UNORM
,
2072 MESA_FORMAT_B10G10R10X2_UNORM
,
2074 /* The 32-bit RGBA format must not precede the 32-bit BGRA format.
2075 * Likewise for RGBX and BGRX. Otherwise, the GLX client and the GLX
2076 * server may disagree on which format the GLXFBConfig represents,
2077 * resulting in swapped color channels.
2079 * The problem, as of 2017-05-30:
2080 * When matching a GLXFBConfig to a __DRIconfig, GLX ignores the channel
2081 * order and chooses the first __DRIconfig with the expected channel
2082 * sizes. Specifically, GLX compares the GLXFBConfig's and __DRIconfig's
2083 * __DRI_ATTRIB_{CHANNEL}_SIZE but ignores __DRI_ATTRIB_{CHANNEL}_MASK.
2085 * EGL does not suffer from this problem. It correctly compares the
2086 * channel masks when matching EGLConfig to __DRIconfig.
2089 /* Required by Android, for HAL_PIXEL_FORMAT_RGBA_8888. */
2090 MESA_FORMAT_R8G8B8A8_UNORM
,
2092 /* Required by Android, for HAL_PIXEL_FORMAT_RGBX_8888. */
2093 MESA_FORMAT_R8G8B8X8_UNORM
,
2096 /* GLX_SWAP_COPY_OML is not supported due to page flipping. */
2097 static const GLenum back_buffer_modes
[] = {
2098 __DRI_ATTRIB_SWAP_UNDEFINED
, __DRI_ATTRIB_SWAP_NONE
2101 static const uint8_t singlesample_samples
[1] = {0};
2103 struct intel_screen
*screen
= dri_screen
->driverPrivate
;
2104 const struct gen_device_info
*devinfo
= &screen
->devinfo
;
2105 uint8_t depth_bits
[4], stencil_bits
[4];
2106 __DRIconfig
**configs
= NULL
;
2108 /* Expose only BGRA ordering if the loader doesn't support RGBA ordering. */
2109 unsigned num_formats
;
2110 if (intel_loader_get_cap(dri_screen
, DRI_LOADER_CAP_RGBA_ORDERING
))
2111 num_formats
= ARRAY_SIZE(formats
);
2113 num_formats
= ARRAY_SIZE(formats
) - 2; /* all - RGBA_ORDERING formats */
2115 /* Shall we expose 10 bpc formats? */
2116 bool allow_rgb10_configs
= driQueryOptionb(&screen
->optionCache
,
2117 "allow_rgb10_configs");
2119 /* Generate singlesample configs without accumulation buffer. */
2120 for (unsigned i
= 0; i
< num_formats
; i
++) {
2121 __DRIconfig
**new_configs
;
2122 int num_depth_stencil_bits
= 2;
2124 if (!allow_rgb10_configs
&&
2125 (formats
[i
] == MESA_FORMAT_B10G10R10A2_UNORM
||
2126 formats
[i
] == MESA_FORMAT_B10G10R10X2_UNORM
))
2129 /* Starting with DRI2 protocol version 1.1 we can request a depth/stencil
2130 * buffer that has a different number of bits per pixel than the color
2131 * buffer, gen >= 6 supports this.
2134 stencil_bits
[0] = 0;
2136 if (formats
[i
] == MESA_FORMAT_B5G6R5_UNORM
) {
2138 stencil_bits
[1] = 0;
2139 if (devinfo
->gen
>= 6) {
2141 stencil_bits
[2] = 8;
2142 num_depth_stencil_bits
= 3;
2146 stencil_bits
[1] = 8;
2149 new_configs
= driCreateConfigs(formats
[i
],
2152 num_depth_stencil_bits
,
2153 back_buffer_modes
, 2,
2154 singlesample_samples
, 1,
2156 configs
= driConcatConfigs(configs
, new_configs
);
2159 /* Generate the minimum possible set of configs that include an
2160 * accumulation buffer.
2162 for (unsigned i
= 0; i
< num_formats
; i
++) {
2163 __DRIconfig
**new_configs
;
2165 if (!allow_rgb10_configs
&&
2166 (formats
[i
] == MESA_FORMAT_B10G10R10A2_UNORM
||
2167 formats
[i
] == MESA_FORMAT_B10G10R10X2_UNORM
))
2170 if (formats
[i
] == MESA_FORMAT_B5G6R5_UNORM
) {
2172 stencil_bits
[0] = 0;
2175 stencil_bits
[0] = 8;
2178 new_configs
= driCreateConfigs(formats
[i
],
2179 depth_bits
, stencil_bits
, 1,
2180 back_buffer_modes
, 1,
2181 singlesample_samples
, 1,
2183 configs
= driConcatConfigs(configs
, new_configs
);
2186 /* Generate multisample configs.
2188 * This loop breaks early, and hence is a no-op, on gen < 6.
2190 * Multisample configs must follow the singlesample configs in order to
2191 * work around an X server bug present in 1.12. The X server chooses to
2192 * associate the first listed RGBA888-Z24S8 config, regardless of its
2193 * sample count, with the 32-bit depth visual used for compositing.
2195 * Only doublebuffer configs with GLX_SWAP_UNDEFINED_OML behavior are
2196 * supported. Singlebuffer configs are not supported because no one wants
2199 for (unsigned i
= 0; i
< num_formats
; i
++) {
2200 if (devinfo
->gen
< 6)
2203 if (!allow_rgb10_configs
&&
2204 (formats
[i
] == MESA_FORMAT_B10G10R10A2_UNORM
||
2205 formats
[i
] == MESA_FORMAT_B10G10R10X2_UNORM
))
2208 __DRIconfig
**new_configs
;
2209 const int num_depth_stencil_bits
= 2;
2210 int num_msaa_modes
= 0;
2211 const uint8_t *multisample_samples
= NULL
;
2214 stencil_bits
[0] = 0;
2216 if (formats
[i
] == MESA_FORMAT_B5G6R5_UNORM
) {
2218 stencil_bits
[1] = 0;
2221 stencil_bits
[1] = 8;
2224 if (devinfo
->gen
>= 9) {
2225 static const uint8_t multisample_samples_gen9
[] = {2, 4, 8, 16};
2226 multisample_samples
= multisample_samples_gen9
;
2227 num_msaa_modes
= ARRAY_SIZE(multisample_samples_gen9
);
2228 } else if (devinfo
->gen
== 8) {
2229 static const uint8_t multisample_samples_gen8
[] = {2, 4, 8};
2230 multisample_samples
= multisample_samples_gen8
;
2231 num_msaa_modes
= ARRAY_SIZE(multisample_samples_gen8
);
2232 } else if (devinfo
->gen
== 7) {
2233 static const uint8_t multisample_samples_gen7
[] = {4, 8};
2234 multisample_samples
= multisample_samples_gen7
;
2235 num_msaa_modes
= ARRAY_SIZE(multisample_samples_gen7
);
2236 } else if (devinfo
->gen
== 6) {
2237 static const uint8_t multisample_samples_gen6
[] = {4};
2238 multisample_samples
= multisample_samples_gen6
;
2239 num_msaa_modes
= ARRAY_SIZE(multisample_samples_gen6
);
2242 new_configs
= driCreateConfigs(formats
[i
],
2245 num_depth_stencil_bits
,
2246 back_buffer_modes
, 1,
2247 multisample_samples
,
2250 configs
= driConcatConfigs(configs
, new_configs
);
2253 if (configs
== NULL
) {
2254 fprintf(stderr
, "[%s:%u] Error creating FBConfig!\n", __func__
,
2263 set_max_gl_versions(struct intel_screen
*screen
)
2265 __DRIscreen
*dri_screen
= screen
->driScrnPriv
;
2266 const bool has_astc
= screen
->devinfo
.gen
>= 9;
2268 switch (screen
->devinfo
.gen
) {
2273 dri_screen
->max_gl_core_version
= 45;
2274 dri_screen
->max_gl_compat_version
= 30;
2275 dri_screen
->max_gl_es1_version
= 11;
2276 dri_screen
->max_gl_es2_version
= has_astc
? 32 : 31;
2279 dri_screen
->max_gl_core_version
= 33;
2280 if (can_do_pipelined_register_writes(screen
)) {
2281 dri_screen
->max_gl_core_version
= 42;
2282 if (screen
->devinfo
.is_haswell
&& can_do_compute_dispatch(screen
))
2283 dri_screen
->max_gl_core_version
= 43;
2284 if (screen
->devinfo
.is_haswell
&& can_do_mi_math_and_lrr(screen
))
2285 dri_screen
->max_gl_core_version
= 45;
2287 dri_screen
->max_gl_compat_version
= 30;
2288 dri_screen
->max_gl_es1_version
= 11;
2289 dri_screen
->max_gl_es2_version
= screen
->devinfo
.is_haswell
? 31 : 30;
2292 dri_screen
->max_gl_core_version
= 33;
2293 dri_screen
->max_gl_compat_version
= 30;
2294 dri_screen
->max_gl_es1_version
= 11;
2295 dri_screen
->max_gl_es2_version
= 30;
2299 dri_screen
->max_gl_core_version
= 0;
2300 dri_screen
->max_gl_compat_version
= 21;
2301 dri_screen
->max_gl_es1_version
= 11;
2302 dri_screen
->max_gl_es2_version
= 20;
2305 unreachable("unrecognized intel_screen::gen");
2310 * Return the revision (generally the revid field of the PCI header) of the
2314 intel_device_get_revision(int fd
)
2316 struct drm_i915_getparam gp
;
2320 memset(&gp
, 0, sizeof(gp
));
2321 gp
.param
= I915_PARAM_REVISION
;
2322 gp
.value
= &revision
;
2324 ret
= drmCommandWriteRead(fd
, DRM_I915_GETPARAM
, &gp
, sizeof(gp
));
2332 shader_debug_log_mesa(void *data
, const char *fmt
, ...)
2334 struct brw_context
*brw
= (struct brw_context
*)data
;
2337 va_start(args
, fmt
);
2339 _mesa_gl_vdebug(&brw
->ctx
, &msg_id
,
2340 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
2341 MESA_DEBUG_TYPE_OTHER
,
2342 MESA_DEBUG_SEVERITY_NOTIFICATION
, fmt
, args
);
2347 shader_perf_log_mesa(void *data
, const char *fmt
, ...)
2349 struct brw_context
*brw
= (struct brw_context
*)data
;
2352 va_start(args
, fmt
);
2354 if (unlikely(INTEL_DEBUG
& DEBUG_PERF
)) {
2356 va_copy(args_copy
, args
);
2357 vfprintf(stderr
, fmt
, args_copy
);
2361 if (brw
->perf_debug
) {
2363 _mesa_gl_vdebug(&brw
->ctx
, &msg_id
,
2364 MESA_DEBUG_SOURCE_SHADER_COMPILER
,
2365 MESA_DEBUG_TYPE_PERFORMANCE
,
2366 MESA_DEBUG_SEVERITY_MEDIUM
, fmt
, args
);
2372 * This is the driver specific part of the createNewScreen entry point.
2373 * Called when using DRI2.
2375 * \return the struct gl_config supported by this driver
2378 __DRIconfig
**intelInitScreen2(__DRIscreen
*dri_screen
)
2380 struct intel_screen
*screen
;
2382 if (dri_screen
->image
.loader
) {
2383 } else if (dri_screen
->dri2
.loader
->base
.version
<= 2 ||
2384 dri_screen
->dri2
.loader
->getBuffersWithFormat
== NULL
) {
2386 "\nERROR! DRI2 loader with getBuffersWithFormat() "
2387 "support required\n");
2391 /* Allocate the private area */
2392 screen
= rzalloc(NULL
, struct intel_screen
);
2394 fprintf(stderr
, "\nERROR! Allocating private area failed\n");
2397 /* parse information in __driConfigOptions */
2398 driOptionCache options
;
2399 memset(&options
, 0, sizeof(options
));
2401 driParseOptionInfo(&options
, brw_config_options
.xml
);
2402 driParseConfigFiles(&screen
->optionCache
, &options
, dri_screen
->myNum
, "i965");
2403 driDestroyOptionCache(&options
);
2405 screen
->driScrnPriv
= dri_screen
;
2406 dri_screen
->driverPrivate
= (void *) screen
;
2408 screen
->deviceID
= gen_get_pci_device_id_override();
2409 if (screen
->deviceID
< 0)
2410 screen
->deviceID
= intel_get_integer(screen
, I915_PARAM_CHIPSET_ID
);
2412 screen
->no_hw
= true;
2414 if (!gen_get_device_info(screen
->deviceID
, &screen
->devinfo
))
2417 if (!intel_init_bufmgr(screen
))
2420 const struct gen_device_info
*devinfo
= &screen
->devinfo
;
2422 brw_process_intel_debug_variable();
2424 if ((INTEL_DEBUG
& DEBUG_SHADER_TIME
) && devinfo
->gen
< 7) {
2426 "shader_time debugging requires gen7 (Ivybridge) or better.\n");
2427 INTEL_DEBUG
&= ~DEBUG_SHADER_TIME
;
2430 if (intel_get_integer(screen
, I915_PARAM_MMAP_GTT_VERSION
) >= 1) {
2431 /* Theorectically unlimited! At least for individual objects...
2433 * Currently the entire (global) address space for all GTT maps is
2434 * limited to 64bits. That is all objects on the system that are
2435 * setup for GTT mmapping must fit within 64bits. An attempt to use
2436 * one that exceeds the limit with fail in brw_bo_map_gtt().
2438 * Long before we hit that limit, we will be practically limited by
2439 * that any single object must fit in physical memory (RAM). The upper
2440 * limit on the CPU's address space is currently 48bits (Skylake), of
2441 * which only 39bits can be physical memory. (The GPU itself also has
2442 * a 48bit addressable virtual space.) We can fit over 32 million
2443 * objects of the current maximum allocable size before running out
2446 screen
->max_gtt_map_object_size
= UINT64_MAX
;
2448 /* Estimate the size of the mappable aperture into the GTT. There's an
2449 * ioctl to get the whole GTT size, but not one to get the mappable subset.
2450 * It turns out it's basically always 256MB, though some ancient hardware
2453 uint32_t gtt_size
= 256 * 1024 * 1024;
2455 /* We don't want to map two objects such that a memcpy between them would
2456 * just fault one mapping in and then the other over and over forever. So
2457 * we would need to divide the GTT size by 2. Additionally, some GTT is
2458 * taken up by things like the framebuffer and the ringbuffer and such, so
2459 * be more conservative.
2461 screen
->max_gtt_map_object_size
= gtt_size
/ 4;
2464 screen
->aperture_threshold
= get_aperture_size(dri_screen
->fd
) * 3 / 4;
2466 screen
->hw_has_swizzling
= intel_detect_swizzling(screen
);
2467 screen
->hw_has_timestamp
= intel_detect_timestamp(screen
);
2469 isl_device_init(&screen
->isl_dev
, &screen
->devinfo
,
2470 screen
->hw_has_swizzling
);
2472 if (devinfo
->gen
>= 10)
2473 intel_cs_timestamp_frequency(screen
);
2475 /* GENs prior to 8 do not support EU/Subslice info */
2476 if (devinfo
->gen
>= 8) {
2477 intel_detect_sseu(screen
);
2478 } else if (devinfo
->gen
== 7) {
2479 screen
->subslice_total
= 1 << (devinfo
->gt
- 1);
2482 /* Gen7-7.5 kernel requirements / command parser saga:
2485 * Haswell and Baytrail cannot use any privileged batchbuffer features.
2487 * Ivybridge has aliasing PPGTT on by default, which accidentally marks
2488 * all batches secure, allowing them to use any feature with no checking.
2489 * This is effectively equivalent to a command parser version of
2490 * \infinity - everything is possible.
2492 * The command parser does not exist, and querying the version will
2496 * The kernel enables the command parser by default, for systems with
2497 * aliasing PPGTT enabled (Ivybridge and Haswell). However, the
2498 * hardware checker is still enabled, so Haswell and Baytrail cannot
2501 * Ivybridge goes from "everything is possible" to "only what the
2502 * command parser allows" (if the user boots with i915.cmd_parser=0,
2503 * then everything is possible again). We can only safely use features
2504 * allowed by the supported command parser version.
2506 * Annoyingly, I915_PARAM_CMD_PARSER_VERSION reports the static version
2507 * implemented by the kernel, even if it's turned off. So, checking
2508 * for version > 0 does not mean that you can write registers. We have
2509 * to try it and see. The version does, however, indicate the age of
2512 * Instead of matching the hardware checker's behavior of converting
2513 * privileged commands to MI_NOOP, it makes execbuf2 start returning
2514 * -EINVAL, making it dangerous to try and use privileged features.
2516 * Effective command parser versions:
2517 * - Haswell: 0 (reporting 1, writes don't work)
2518 * - Baytrail: 0 (reporting 1, writes don't work)
2519 * - Ivybridge: 1 (enabled) or infinite (disabled)
2522 * Baytrail aliasing PPGTT is enabled, making it like Ivybridge:
2523 * effectively version 1 (enabled) or infinite (disabled).
2525 * - v3.19: f1f55cc0556031c8ee3fe99dae7251e78b9b653b
2526 * Command parser v2 supports predicate writes.
2528 * - Haswell: 0 (reporting 1, writes don't work)
2529 * - Baytrail: 2 (enabled) or infinite (disabled)
2530 * - Ivybridge: 2 (enabled) or infinite (disabled)
2532 * So version >= 2 is enough to know that Ivybridge and Baytrail
2533 * will work. Haswell still can't do anything.
2535 * - v4.0: Version 3 happened. Largely not relevant.
2537 * - v4.1: 6702cf16e0ba8b0129f5aa1b6609d4e9c70bc13b
2538 * L3 config registers are properly saved and restored as part
2539 * of the hardware context. We can approximately detect this point
2540 * in time by checking if I915_PARAM_REVISION is recognized - it
2541 * landed in a later commit, but in the same release cycle.
2543 * - v4.2: 245054a1fe33c06ad233e0d58a27ec7b64db9284
2544 * Command parser finally gains secure batch promotion. On Haswell,
2545 * the hardware checker gets disabled, which finally allows it to do
2546 * privileged commands.
2548 * I915_PARAM_CMD_PARSER_VERSION reports 3. Effective versions:
2549 * - Haswell: 3 (enabled) or 0 (disabled)
2550 * - Baytrail: 3 (enabled) or infinite (disabled)
2551 * - Ivybridge: 3 (enabled) or infinite (disabled)
2553 * Unfortunately, detecting this point in time is tricky, because
2554 * no version bump happened when this important change occurred.
2555 * On Haswell, if we can write any register, then the kernel is at
2556 * least this new, and we can start trusting the version number.
2558 * - v4.4: 2bbe6bbb0dc94fd4ce287bdac9e1bd184e23057b and
2559 * Command parser reaches version 4, allowing access to Haswell
2560 * atomic scratch and chicken3 registers. If version >= 4, we know
2561 * the kernel is new enough to support privileged features on all
2562 * hardware. However, the user might have disabled it...and the
2563 * kernel will still report version 4. So we still have to guess
2566 * - v4.4: 7b9748cb513a6bef4af87b79f0da3ff7e8b56cd8
2567 * Command parser v5 whitelists indirect compute shader dispatch
2568 * registers, needed for OpenGL 4.3 and later.
2571 * Command parser v7 lets us use MI_MATH on Haswell.
2573 * Additionally, the kernel begins reporting version 0 when
2574 * the command parser is disabled, allowing us to skip the
2575 * guess-and-check step on Haswell. Unfortunately, this also
2576 * means that we can no longer use it as an indicator of the
2577 * age of the kernel.
2579 if (intel_get_param(screen
, I915_PARAM_CMD_PARSER_VERSION
,
2580 &screen
->cmd_parser_version
) < 0) {
2581 /* Command parser does not exist - getparam is unrecognized */
2582 screen
->cmd_parser_version
= 0;
2585 /* Kernel 4.13 retuired for exec object capture */
2586 if (intel_get_boolean(screen
, I915_PARAM_HAS_EXEC_CAPTURE
)) {
2587 screen
->kernel_features
|= KERNEL_ALLOWS_EXEC_CAPTURE
;
2590 if (intel_get_boolean(screen
, I915_PARAM_HAS_EXEC_BATCH_FIRST
)) {
2591 screen
->kernel_features
|= KERNEL_ALLOWS_EXEC_BATCH_FIRST
;
2594 if (!intel_detect_pipelined_so(screen
)) {
2595 /* We can't do anything, so the effective version is 0. */
2596 screen
->cmd_parser_version
= 0;
2598 screen
->kernel_features
|= KERNEL_ALLOWS_SOL_OFFSET_WRITES
;
2601 if (devinfo
->gen
>= 8 || screen
->cmd_parser_version
>= 2)
2602 screen
->kernel_features
|= KERNEL_ALLOWS_PREDICATE_WRITES
;
2604 /* Haswell requires command parser version 4 in order to have L3
2605 * atomic scratch1 and chicken3 bits
2607 if (devinfo
->is_haswell
&& screen
->cmd_parser_version
>= 4) {
2608 screen
->kernel_features
|=
2609 KERNEL_ALLOWS_HSW_SCRATCH1_AND_ROW_CHICKEN3
;
2612 /* Haswell requires command parser version 6 in order to write to the
2613 * MI_MATH GPR registers, and version 7 in order to use
2614 * MI_LOAD_REGISTER_REG (which all users of MI_MATH use).
2616 if (devinfo
->gen
>= 8 ||
2617 (devinfo
->is_haswell
&& screen
->cmd_parser_version
>= 7)) {
2618 screen
->kernel_features
|= KERNEL_ALLOWS_MI_MATH_AND_LRR
;
2621 /* Gen7 needs at least command parser version 5 to support compute */
2622 if (devinfo
->gen
>= 8 || screen
->cmd_parser_version
>= 5)
2623 screen
->kernel_features
|= KERNEL_ALLOWS_COMPUTE_DISPATCH
;
2625 if (intel_get_boolean(screen
, I915_PARAM_HAS_CONTEXT_ISOLATION
))
2626 screen
->kernel_features
|= KERNEL_ALLOWS_CONTEXT_ISOLATION
;
2628 const char *force_msaa
= getenv("INTEL_FORCE_MSAA");
2630 screen
->winsys_msaa_samples_override
=
2631 intel_quantize_num_samples(screen
, atoi(force_msaa
));
2632 printf("Forcing winsys sample count to %d\n",
2633 screen
->winsys_msaa_samples_override
);
2635 screen
->winsys_msaa_samples_override
= -1;
2638 set_max_gl_versions(screen
);
2640 /* Notification of GPU resets requires hardware contexts and a kernel new
2641 * enough to support DRM_IOCTL_I915_GET_RESET_STATS. If the ioctl is
2642 * supported, calling it with a context of 0 will either generate EPERM or
2643 * no error. If the ioctl is not supported, it always generate EINVAL.
2644 * Use this to determine whether to advertise the __DRI2_ROBUSTNESS
2645 * extension to the loader.
2647 * Don't even try on pre-Gen6, since we don't attempt to use contexts there.
2649 if (devinfo
->gen
>= 6) {
2650 struct drm_i915_reset_stats stats
;
2651 memset(&stats
, 0, sizeof(stats
));
2653 const int ret
= drmIoctl(dri_screen
->fd
, DRM_IOCTL_I915_GET_RESET_STATS
, &stats
);
2655 screen
->has_context_reset_notification
=
2656 (ret
!= -1 || errno
!= EINVAL
);
2659 dri_screen
->extensions
= !screen
->has_context_reset_notification
2660 ? screenExtensions
: intelRobustScreenExtensions
;
2662 screen
->compiler
= brw_compiler_create(screen
, devinfo
);
2663 screen
->compiler
->shader_debug_log
= shader_debug_log_mesa
;
2664 screen
->compiler
->shader_perf_log
= shader_perf_log_mesa
;
2666 /* Changing the meaning of constant buffer pointers from a dynamic state
2667 * offset to an absolute address is only safe if the kernel isolates other
2668 * contexts from our changes.
2670 screen
->compiler
->constant_buffer_0_is_relative
= devinfo
->gen
< 8 ||
2671 !(screen
->kernel_features
& KERNEL_ALLOWS_CONTEXT_ISOLATION
);
2673 screen
->compiler
->supports_pull_constants
= true;
2675 screen
->has_exec_fence
=
2676 intel_get_boolean(screen
, I915_PARAM_HAS_EXEC_FENCE
);
2678 intel_screen_init_surface_formats(screen
);
2680 if (INTEL_DEBUG
& (DEBUG_BATCH
| DEBUG_SUBMIT
)) {
2681 unsigned int caps
= intel_get_integer(screen
, I915_PARAM_HAS_SCHEDULER
);
2683 fprintf(stderr
, "Kernel scheduler detected: %08x\n", caps
);
2684 if (caps
& I915_SCHEDULER_CAP_PRIORITY
)
2685 fprintf(stderr
, " - User priority sorting enabled\n");
2686 if (caps
& I915_SCHEDULER_CAP_PREEMPTION
)
2687 fprintf(stderr
, " - Preemption enabled\n");
2691 brw_disk_cache_init(screen
);
2693 return (const __DRIconfig
**) intel_screen_make_configs(dri_screen
);
2696 struct intel_buffer
{
2701 static __DRIbuffer
*
2702 intelAllocateBuffer(__DRIscreen
*dri_screen
,
2703 unsigned attachment
, unsigned format
,
2704 int width
, int height
)
2706 struct intel_buffer
*intelBuffer
;
2707 struct intel_screen
*screen
= dri_screen
->driverPrivate
;
2709 assert(attachment
== __DRI_BUFFER_FRONT_LEFT
||
2710 attachment
== __DRI_BUFFER_BACK_LEFT
);
2712 intelBuffer
= calloc(1, sizeof *intelBuffer
);
2713 if (intelBuffer
== NULL
)
2716 /* The front and back buffers are color buffers, which are X tiled. GEN9+
2717 * supports Y tiled and compressed buffers, but there is no way to plumb that
2718 * through to here. */
2720 int cpp
= format
/ 8;
2721 intelBuffer
->bo
= brw_bo_alloc_tiled_2d(screen
->bufmgr
,
2722 "intelAllocateBuffer",
2726 I915_TILING_X
, &pitch
,
2729 if (intelBuffer
->bo
== NULL
) {
2734 brw_bo_flink(intelBuffer
->bo
, &intelBuffer
->base
.name
);
2736 intelBuffer
->base
.attachment
= attachment
;
2737 intelBuffer
->base
.cpp
= cpp
;
2738 intelBuffer
->base
.pitch
= pitch
;
2740 return &intelBuffer
->base
;
2744 intelReleaseBuffer(__DRIscreen
*dri_screen
, __DRIbuffer
*buffer
)
2746 struct intel_buffer
*intelBuffer
= (struct intel_buffer
*) buffer
;
2748 brw_bo_unreference(intelBuffer
->bo
);
2752 static const struct __DriverAPIRec brw_driver_api
= {
2753 .InitScreen
= intelInitScreen2
,
2754 .DestroyScreen
= intelDestroyScreen
,
2755 .CreateContext
= brwCreateContext
,
2756 .DestroyContext
= intelDestroyContext
,
2757 .CreateBuffer
= intelCreateBuffer
,
2758 .DestroyBuffer
= intelDestroyBuffer
,
2759 .MakeCurrent
= intelMakeCurrent
,
2760 .UnbindContext
= intelUnbindContext
,
2761 .AllocateBuffer
= intelAllocateBuffer
,
2762 .ReleaseBuffer
= intelReleaseBuffer
2765 static const struct __DRIDriverVtableExtensionRec brw_vtable
= {
2766 .base
= { __DRI_DRIVER_VTABLE
, 1 },
2767 .vtable
= &brw_driver_api
,
2770 static const __DRIextension
*brw_driver_extensions
[] = {
2771 &driCoreExtension
.base
,
2772 &driImageDriverExtension
.base
,
2773 &driDRI2Extension
.base
,
2775 &brw_config_options
.base
,
2779 PUBLIC
const __DRIextension
**__driDriverGetExtensions_i965(void)
2781 globalDriverAPI
= &brw_driver_api
;
2783 return brw_driver_extensions
;