1 /**************************************************************************
2 *
3 * Copyright 2003 VMware, Inc.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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 VMWARE 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.
25 *
26 **************************************************************************/
27
28 #include <errno.h>
29 #include <time.h>
30 #include <unistd.h>
31 #include "main/glheader.h"
32 #include "main/context.h"
33 #include "main/framebuffer.h"
34 #include "main/renderbuffer.h"
35 #include "main/texobj.h"
36 #include "main/hash.h"
37 #include "main/fbobject.h"
38 #include "main/version.h"
39 #include "swrast/s_renderbuffer.h"
40
41 #include "utils.h"
42 #include "util/xmlpool.h"
43
44 static const __DRIconfigOptionsExtension i915_config_options = {
45 .base = { __DRI_CONFIG_OPTIONS, 1 },
46 .xml =
47
48 DRI_CONF_BEGIN
49 DRI_CONF_SECTION_PERFORMANCE
50 /* Options correspond to DRI_CONF_BO_REUSE_DISABLED,
51 * DRI_CONF_BO_REUSE_ALL
52 */
53 DRI_CONF_OPT_BEGIN_V(bo_reuse, enum, 1, "0:1")
54 DRI_CONF_DESC_BEGIN(en, "Buffer object reuse")
55 DRI_CONF_ENUM(0, "Disable buffer object reuse")
56 DRI_CONF_ENUM(1, "Enable reuse of all sizes of buffer objects")
57 DRI_CONF_DESC_END
58 DRI_CONF_OPT_END
59
60 DRI_CONF_OPT_BEGIN_B(early_z, "false")
61 DRI_CONF_DESC(en, "Enable early Z in classic mode (unstable, 945-only).")
62 DRI_CONF_OPT_END
63
64 DRI_CONF_OPT_BEGIN_B(fragment_shader, "true")
65 DRI_CONF_DESC(en, "Enable limited ARB_fragment_shader support on 915/945.")
66 DRI_CONF_OPT_END
67
68 DRI_CONF_SECTION_END
69 DRI_CONF_SECTION_QUALITY
70 DRI_CONF_SECTION_END
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")
75 DRI_CONF_DISABLE_THROTTLING("false")
76 DRI_CONF_FORCE_GLSL_EXTENSIONS_WARN("false")
77 DRI_CONF_DISABLE_GLSL_LINE_CONTINUATIONS("false")
78 DRI_CONF_DISABLE_BLEND_FUNC_EXTENDED("false")
79
80 DRI_CONF_OPT_BEGIN_B(stub_occlusion_query, "false")
81 DRI_CONF_DESC(en, "Enable stub ARB_occlusion_query support on 915/945.")
82 DRI_CONF_OPT_END
83
84 DRI_CONF_OPT_BEGIN_B(shader_precompile, "true")
85 DRI_CONF_DESC(en, "Perform code generation at shader link time.")
86 DRI_CONF_OPT_END
87 DRI_CONF_SECTION_END
88 DRI_CONF_END
89 };
90
91 #include "intel_batchbuffer.h"
92 #include "intel_buffers.h"
93 #include "intel_bufmgr.h"
94 #include "intel_chipset.h"
95 #include "intel_fbo.h"
96 #include "intel_mipmap_tree.h"
97 #include "intel_screen.h"
98 #include "intel_tex.h"
99 #include "intel_regions.h"
100
101 #include "i915_drm.h"
102
103 /**
104 * For debugging purposes, this returns a time in seconds.
105 */
106 double
get_time(void)107 get_time(void)
108 {
109 struct timespec tp;
110
111 clock_gettime(CLOCK_MONOTONIC, &tp);
112
113 return tp.tv_sec + tp.tv_nsec / 1000000000.0;
114 }
115
116 void
aub_dump_bmp(struct gl_context * ctx)117 aub_dump_bmp(struct gl_context *ctx)
118 {
119 struct gl_framebuffer *fb = ctx->DrawBuffer;
120
121 for (int i = 0; i < fb->_NumColorDrawBuffers; i++) {
122 struct intel_renderbuffer *irb =
123 intel_renderbuffer(fb->_ColorDrawBuffers[i]);
124
125 if (irb && irb->mt) {
126 enum aub_dump_bmp_format format;
127
128 switch (irb->Base.Base.Format) {
129 case MESA_FORMAT_B8G8R8A8_UNORM:
130 case MESA_FORMAT_B8G8R8X8_UNORM:
131 format = AUB_DUMP_BMP_FORMAT_ARGB_8888;
132 break;
133 default:
134 continue;
135 }
136
137 assert(irb->mt->region->pitch % irb->mt->region->cpp == 0);
138 drm_intel_gem_bo_aub_dump_bmp(irb->mt->region->bo,
139 irb->draw_x,
140 irb->draw_y,
141 irb->Base.Base.Width,
142 irb->Base.Base.Height,
143 format,
144 irb->mt->region->pitch,
145 0);
146 }
147 }
148 }
149
150 static const __DRItexBufferExtension intelTexBufferExtension = {
151 .base = { __DRI_TEX_BUFFER, 3 },
152
153 .setTexBuffer = intelSetTexBuffer,
154 .setTexBuffer2 = intelSetTexBuffer2,
155 .releaseTexBuffer = NULL,
156 };
157
158 static void
intelDRI2Flush(__DRIdrawable * drawable)159 intelDRI2Flush(__DRIdrawable *drawable)
160 {
161 GET_CURRENT_CONTEXT(ctx);
162 struct intel_context *intel = intel_context(ctx);
163 if (intel == NULL)
164 return;
165
166 INTEL_FIREVERTICES(intel);
167
168 intel->need_throttle = true;
169
170 if (intel->batch.used)
171 intel_batchbuffer_flush(intel);
172
173 if (INTEL_DEBUG & DEBUG_AUB) {
174 aub_dump_bmp(ctx);
175 }
176 }
177
178 static const struct __DRI2flushExtensionRec intelFlushExtension = {
179 .base = { __DRI2_FLUSH, 3 },
180
181 .flush = intelDRI2Flush,
182 .invalidate = dri2InvalidateDrawable,
183 };
184
185 static struct intel_image_format intel_image_formats[] = {
186 { __DRI_IMAGE_FOURCC_ARGB8888, __DRI_IMAGE_COMPONENTS_RGBA, 1,
187 { { 0, 0, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 } } },
188
189 { __DRI_IMAGE_FOURCC_SARGB8888, __DRI_IMAGE_COMPONENTS_RGBA, 1,
190 { { 0, 0, 0, __DRI_IMAGE_FORMAT_SARGB8, 4 } } },
191
192 { __DRI_IMAGE_FOURCC_XRGB8888, __DRI_IMAGE_COMPONENTS_RGB, 1,
193 { { 0, 0, 0, __DRI_IMAGE_FORMAT_XRGB8888, 4 }, } },
194
195 { __DRI_IMAGE_FOURCC_YUV410, __DRI_IMAGE_COMPONENTS_Y_U_V, 3,
196 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
197 { 1, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 },
198 { 2, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 } } },
199
200 { __DRI_IMAGE_FOURCC_YUV411, __DRI_IMAGE_COMPONENTS_Y_U_V, 3,
201 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
202 { 1, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 },
203 { 2, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
204
205 { __DRI_IMAGE_FOURCC_YUV420, __DRI_IMAGE_COMPONENTS_Y_U_V, 3,
206 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
207 { 1, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 },
208 { 2, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 } } },
209
210 { __DRI_IMAGE_FOURCC_YUV422, __DRI_IMAGE_COMPONENTS_Y_U_V, 3,
211 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
212 { 1, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 },
213 { 2, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
214
215 { __DRI_IMAGE_FOURCC_YUV444, __DRI_IMAGE_COMPONENTS_Y_U_V, 3,
216 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
217 { 1, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
218 { 2, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
219
220 { __DRI_IMAGE_FOURCC_NV12, __DRI_IMAGE_COMPONENTS_Y_UV, 2,
221 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
222 { 1, 1, 1, __DRI_IMAGE_FORMAT_GR88, 2 } } },
223
224 { __DRI_IMAGE_FOURCC_NV16, __DRI_IMAGE_COMPONENTS_Y_UV, 2,
225 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
226 { 1, 1, 0, __DRI_IMAGE_FORMAT_GR88, 2 } } },
227
228 /* For YUYV and UYVY buffers, we set up two overlapping DRI images
229 * and treat them as planar buffers in the compositors.
230 * Plane 0 is GR88 and samples YU or YV pairs and places Y into
231 * the R component, while plane 1 is ARGB/ABGR and samples YUYV/UYVY
232 * clusters and places pairs and places U into the G component and
233 * V into A. This lets the texture sampler interpolate the Y
234 * components correctly when sampling from plane 0, and interpolate
235 * U and V correctly when sampling from plane 1. */
236 { __DRI_IMAGE_FOURCC_YUYV, __DRI_IMAGE_COMPONENTS_Y_XUXV, 2,
237 { { 0, 0, 0, __DRI_IMAGE_FORMAT_GR88, 2 },
238 { 0, 1, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 } } },
239 { __DRI_IMAGE_FOURCC_UYVY, __DRI_IMAGE_COMPONENTS_Y_UXVX, 2,
240 { { 0, 0, 0, __DRI_IMAGE_FORMAT_GR88, 2 },
241 { 0, 1, 0, __DRI_IMAGE_FORMAT_ABGR8888, 4 } } }
242 };
243
244 static __DRIimage *
intel_allocate_image(int dri_format,void * loaderPrivate)245 intel_allocate_image(int dri_format, void *loaderPrivate)
246 {
247 __DRIimage *image;
248
249 image = calloc(1, sizeof *image);
250 if (image == NULL)
251 return NULL;
252
253 image->dri_format = dri_format;
254 image->offset = 0;
255
256 image->format = driImageFormatToGLFormat(dri_format);
257 if (dri_format != __DRI_IMAGE_FORMAT_NONE &&
258 image->format == MESA_FORMAT_NONE) {
259 free(image);
260 return NULL;
261 }
262
263 image->internal_format = _mesa_get_format_base_format(image->format);
264 image->data = loaderPrivate;
265
266 return image;
267 }
268
269 /**
270 * Sets up a DRIImage structure to point to our shared image in a region
271 */
272 static void
intel_setup_image_from_mipmap_tree(struct intel_context * intel,__DRIimage * image,struct intel_mipmap_tree * mt,GLuint level,GLuint zoffset)273 intel_setup_image_from_mipmap_tree(struct intel_context *intel, __DRIimage *image,
274 struct intel_mipmap_tree *mt, GLuint level,
275 GLuint zoffset)
276 {
277 unsigned int draw_x, draw_y;
278 uint32_t mask_x, mask_y;
279
280 intel_miptree_check_level_layer(mt, level, zoffset);
281
282 intel_region_get_tile_masks(mt->region, &mask_x, &mask_y);
283 intel_miptree_get_image_offset(mt, level, zoffset, &draw_x, &draw_y);
284
285 image->width = mt->level[level].width;
286 image->height = mt->level[level].height;
287 image->tile_x = draw_x & mask_x;
288 image->tile_y = draw_y & mask_y;
289
290 image->offset = intel_region_get_aligned_offset(mt->region,
291 draw_x & ~mask_x,
292 draw_y & ~mask_y);
293
294 intel_region_reference(&image->region, mt->region);
295 }
296
297 static void
intel_setup_image_from_dimensions(__DRIimage * image)298 intel_setup_image_from_dimensions(__DRIimage *image)
299 {
300 image->width = image->region->width;
301 image->height = image->region->height;
302 image->tile_x = 0;
303 image->tile_y = 0;
304 }
305
306 static __DRIimage *
intel_create_image_from_name(__DRIscreen * screen,int width,int height,int format,int name,int pitch,void * loaderPrivate)307 intel_create_image_from_name(__DRIscreen *screen,
308 int width, int height, int format,
309 int name, int pitch, void *loaderPrivate)
310 {
311 struct intel_screen *intelScreen = screen->driverPrivate;
312 __DRIimage *image;
313 int cpp;
314
315 image = intel_allocate_image(format, loaderPrivate);
316 if (image == NULL)
317 return NULL;
318
319 if (image->format == MESA_FORMAT_NONE)
320 cpp = 1;
321 else
322 cpp = _mesa_get_format_bytes(image->format);
323 image->region = intel_region_alloc_for_handle(intelScreen,
324 cpp, width, height,
325 pitch * cpp, name, "image");
326 if (image->region == NULL) {
327 free(image);
328 return NULL;
329 }
330
331 intel_setup_image_from_dimensions(image);
332
333 return image;
334 }
335
336 static __DRIimage *
intel_create_image_from_renderbuffer(__DRIcontext * context,int renderbuffer,void * loaderPrivate)337 intel_create_image_from_renderbuffer(__DRIcontext *context,
338 int renderbuffer, void *loaderPrivate)
339 {
340 __DRIimage *image;
341 struct intel_context *intel = context->driverPrivate;
342 struct gl_renderbuffer *rb;
343 struct intel_renderbuffer *irb;
344
345 rb = _mesa_lookup_renderbuffer(&intel->ctx, renderbuffer);
346 if (!rb) {
347 _mesa_error(&intel->ctx,
348 GL_INVALID_OPERATION, "glRenderbufferExternalMESA");
349 return NULL;
350 }
351
352 irb = intel_renderbuffer(rb);
353 image = calloc(1, sizeof *image);
354 if (image == NULL)
355 return NULL;
356
357 image->internal_format = rb->InternalFormat;
358 image->format = rb->Format;
359 image->offset = 0;
360 image->data = loaderPrivate;
361 intel_region_reference(&image->region, irb->mt->region);
362 intel_setup_image_from_dimensions(image);
363 image->dri_format = driGLFormatToImageFormat(image->format);
364
365 rb->NeedsFinishRenderTexture = true;
366 return image;
367 }
368
369 static __DRIimage *
intel_create_image_from_texture(__DRIcontext * context,int target,unsigned texture,int zoffset,int level,unsigned * error,void * loaderPrivate)370 intel_create_image_from_texture(__DRIcontext *context, int target,
371 unsigned texture, int zoffset,
372 int level,
373 unsigned *error,
374 void *loaderPrivate)
375 {
376 __DRIimage *image;
377 struct intel_context *intel = context->driverPrivate;
378 struct gl_texture_object *obj;
379 struct intel_texture_object *iobj;
380 GLuint face = 0;
381
382 obj = _mesa_lookup_texture(&intel->ctx, texture);
383 if (!obj || obj->Target != target) {
384 *error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
385 return NULL;
386 }
387
388 if (target == GL_TEXTURE_CUBE_MAP)
389 face = zoffset;
390
391 _mesa_test_texobj_completeness(&intel->ctx, obj);
392 iobj = intel_texture_object(obj);
393 if (!obj->_BaseComplete || (level > 0 && !obj->_MipmapComplete)) {
394 *error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
395 return NULL;
396 }
397
398 if (level < obj->BaseLevel || level > obj->_MaxLevel) {
399 *error = __DRI_IMAGE_ERROR_BAD_MATCH;
400 return NULL;
401 }
402
403 if (target == GL_TEXTURE_3D && obj->Image[face][level]->Depth < zoffset) {
404 *error = __DRI_IMAGE_ERROR_BAD_MATCH;
405 return NULL;
406 }
407 image = calloc(1, sizeof *image);
408 if (image == NULL) {
409 *error = __DRI_IMAGE_ERROR_BAD_ALLOC;
410 return NULL;
411 }
412
413 image->internal_format = obj->Image[face][level]->InternalFormat;
414 image->format = obj->Image[face][level]->TexFormat;
415 image->data = loaderPrivate;
416 intel_setup_image_from_mipmap_tree(intel, image, iobj->mt, level, zoffset);
417 image->dri_format = driGLFormatToImageFormat(image->format);
418 if (image->dri_format == MESA_FORMAT_NONE) {
419 *error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
420 free(image);
421 return NULL;
422 }
423
424 *error = __DRI_IMAGE_ERROR_SUCCESS;
425 return image;
426 }
427
428 static void
intel_destroy_image(__DRIimage * image)429 intel_destroy_image(__DRIimage *image)
430 {
431 intel_region_release(&image->region);
432 free(image);
433 }
434
435 static __DRIimage *
intel_create_image(__DRIscreen * screen,int width,int height,int format,unsigned int use,void * loaderPrivate)436 intel_create_image(__DRIscreen *screen,
437 int width, int height, int format,
438 unsigned int use,
439 void *loaderPrivate)
440 {
441 __DRIimage *image;
442 struct intel_screen *intelScreen = screen->driverPrivate;
443 uint32_t tiling;
444 int cpp;
445
446 tiling = I915_TILING_X;
447 if (use & __DRI_IMAGE_USE_CURSOR) {
448 if (width != 64 || height != 64)
449 return NULL;
450 tiling = I915_TILING_NONE;
451 }
452
453 if (use & __DRI_IMAGE_USE_LINEAR)
454 tiling = I915_TILING_NONE;
455
456 image = intel_allocate_image(format, loaderPrivate);
457 if (image == NULL)
458 return NULL;
459
460 cpp = _mesa_get_format_bytes(image->format);
461 image->region =
462 intel_region_alloc(intelScreen, tiling, cpp, width, height, true);
463 if (image->region == NULL) {
464 free(image);
465 return NULL;
466 }
467
468 intel_setup_image_from_dimensions(image);
469
470 return image;
471 }
472
473 static GLboolean
intel_query_image(__DRIimage * image,int attrib,int * value)474 intel_query_image(__DRIimage *image, int attrib, int *value)
475 {
476 switch (attrib) {
477 case __DRI_IMAGE_ATTRIB_STRIDE:
478 *value = image->region->pitch;
479 return true;
480 case __DRI_IMAGE_ATTRIB_HANDLE:
481 *value = image->region->bo->handle;
482 return true;
483 case __DRI_IMAGE_ATTRIB_NAME:
484 return intel_region_flink(image->region, (uint32_t *) value);
485 case __DRI_IMAGE_ATTRIB_FORMAT:
486 *value = image->dri_format;
487 return true;
488 case __DRI_IMAGE_ATTRIB_WIDTH:
489 *value = image->region->width;
490 return true;
491 case __DRI_IMAGE_ATTRIB_HEIGHT:
492 *value = image->region->height;
493 return true;
494 case __DRI_IMAGE_ATTRIB_COMPONENTS:
495 if (image->planar_format == NULL)
496 return false;
497 *value = image->planar_format->components;
498 return true;
499 case __DRI_IMAGE_ATTRIB_FD:
500 return !drm_intel_bo_gem_export_to_prime(image->region->bo, value);
501 default:
502 return false;
503 }
504 }
505
506 static __DRIimage *
intel_dup_image(__DRIimage * orig_image,void * loaderPrivate)507 intel_dup_image(__DRIimage *orig_image, void *loaderPrivate)
508 {
509 __DRIimage *image;
510
511 image = calloc(1, sizeof *image);
512 if (image == NULL)
513 return NULL;
514
515 intel_region_reference(&image->region, orig_image->region);
516 if (image->region == NULL) {
517 free(image);
518 return NULL;
519 }
520
521 image->internal_format = orig_image->internal_format;
522 image->planar_format = orig_image->planar_format;
523 image->dri_format = orig_image->dri_format;
524 image->format = orig_image->format;
525 image->offset = orig_image->offset;
526 image->width = orig_image->width;
527 image->height = orig_image->height;
528 image->tile_x = orig_image->tile_x;
529 image->tile_y = orig_image->tile_y;
530 image->data = loaderPrivate;
531
532 memcpy(image->strides, orig_image->strides, sizeof(image->strides));
533 memcpy(image->offsets, orig_image->offsets, sizeof(image->offsets));
534
535 return image;
536 }
537
538 static GLboolean
intel_validate_usage(__DRIimage * image,unsigned int use)539 intel_validate_usage(__DRIimage *image, unsigned int use)
540 {
541 if (use & __DRI_IMAGE_USE_CURSOR) {
542 if (image->region->width != 64 || image->region->height != 64)
543 return GL_FALSE;
544 }
545
546 return GL_TRUE;
547 }
548
549 static __DRIimage *
intel_create_image_from_names(__DRIscreen * screen,int width,int height,int fourcc,int * names,int num_names,int * strides,int * offsets,void * loaderPrivate)550 intel_create_image_from_names(__DRIscreen *screen,
551 int width, int height, int fourcc,
552 int *names, int num_names,
553 int *strides, int *offsets,
554 void *loaderPrivate)
555 {
556 struct intel_image_format *f = NULL;
557 __DRIimage *image;
558 int i, index;
559
560 if (screen == NULL || names == NULL || num_names != 1)
561 return NULL;
562
563 for (i = 0; i < ARRAY_SIZE(intel_image_formats); i++) {
564 if (intel_image_formats[i].fourcc == fourcc) {
565 f = &intel_image_formats[i];
566 }
567 }
568
569 if (f == NULL)
570 return NULL;
571
572 image = intel_create_image_from_name(screen, width, height,
573 __DRI_IMAGE_FORMAT_NONE,
574 names[0], strides[0],
575 loaderPrivate);
576
577 if (image == NULL)
578 return NULL;
579
580 image->planar_format = f;
581 for (i = 0; i < f->nplanes; i++) {
582 index = f->planes[i].buffer_index;
583 image->offsets[index] = offsets[index];
584 image->strides[index] = strides[index];
585 }
586
587 return image;
588 }
589
590 static __DRIimage *
intel_create_image_from_fds(__DRIscreen * screen,int width,int height,int fourcc,int * fds,int num_fds,int * strides,int * offsets,void * loaderPrivate)591 intel_create_image_from_fds(__DRIscreen *screen,
592 int width, int height, int fourcc,
593 int *fds, int num_fds, int *strides, int *offsets,
594 void *loaderPrivate)
595 {
596 struct intel_screen *intelScreen = screen->driverPrivate;
597 struct intel_image_format *f = NULL;
598 __DRIimage *image;
599 int i, index;
600
601 if (fds == NULL || num_fds != 1)
602 return NULL;
603
604 for (i = 0; i < ARRAY_SIZE(intel_image_formats); i++) {
605 if (intel_image_formats[i].fourcc == fourcc) {
606 f = &intel_image_formats[i];
607 }
608 }
609
610 if (f == NULL)
611 return NULL;
612
613 image = intel_allocate_image(__DRI_IMAGE_FORMAT_NONE, loaderPrivate);
614 if (image == NULL)
615 return NULL;
616
617 image->region = intel_region_alloc_for_fd(intelScreen,
618 f->planes[0].cpp, width, height, strides[0],
619 height * strides[0], fds[0], "image");
620 if (image->region == NULL) {
621 free(image);
622 return NULL;
623 }
624
625 intel_setup_image_from_dimensions(image);
626
627 image->planar_format = f;
628 for (i = 0; i < f->nplanes; i++) {
629 index = f->planes[i].buffer_index;
630 image->offsets[index] = offsets[index];
631 image->strides[index] = strides[index];
632 }
633
634 return image;
635 }
636
637
638 static __DRIimage *
intel_from_planar(__DRIimage * parent,int plane,void * loaderPrivate)639 intel_from_planar(__DRIimage *parent, int plane, void *loaderPrivate)
640 {
641 int width, height, offset, stride, dri_format, index;
642 struct intel_image_format *f;
643 uint32_t mask_x, mask_y;
644 __DRIimage *image;
645
646 if (parent == NULL || parent->planar_format == NULL)
647 return NULL;
648
649 f = parent->planar_format;
650
651 if (plane >= f->nplanes)
652 return NULL;
653
654 width = parent->region->width >> f->planes[plane].width_shift;
655 height = parent->region->height >> f->planes[plane].height_shift;
656 dri_format = f->planes[plane].dri_format;
657 index = f->planes[plane].buffer_index;
658 offset = parent->offsets[index];
659 stride = parent->strides[index];
660
661 image = intel_allocate_image(dri_format, loaderPrivate);
662 if (image == NULL)
663 return NULL;
664
665 if (offset + height * stride > parent->region->bo->size) {
666 _mesa_warning(NULL, "intel_create_sub_image: subimage out of bounds");
667 free(image);
668 return NULL;
669 }
670
671 image->region = calloc(sizeof(*image->region), 1);
672 if (image->region == NULL) {
673 free(image);
674 return NULL;
675 }
676
677 image->region->cpp = _mesa_get_format_bytes(image->format);
678 image->region->width = width;
679 image->region->height = height;
680 image->region->pitch = stride;
681 image->region->refcount = 1;
682 image->region->bo = parent->region->bo;
683 drm_intel_bo_reference(image->region->bo);
684 image->region->tiling = parent->region->tiling;
685 image->offset = offset;
686 intel_setup_image_from_dimensions(image);
687
688 intel_region_get_tile_masks(image->region, &mask_x, &mask_y);
689 if (offset & mask_x)
690 _mesa_warning(NULL,
691 "intel_create_sub_image: offset not on tile boundary");
692
693 return image;
694 }
695
696 static const __DRIimageExtension intelImageExtension = {
697 .base = { __DRI_IMAGE, 7 },
698
699 .createImageFromName = intel_create_image_from_name,
700 .createImageFromRenderbuffer = intel_create_image_from_renderbuffer,
701 .destroyImage = intel_destroy_image,
702 .createImage = intel_create_image,
703 .queryImage = intel_query_image,
704 .dupImage = intel_dup_image,
705 .validateUsage = intel_validate_usage,
706 .createImageFromNames = intel_create_image_from_names,
707 .fromPlanar = intel_from_planar,
708 .createImageFromTexture = intel_create_image_from_texture,
709 .createImageFromFds = intel_create_image_from_fds
710 };
711
712 static int
i915_query_renderer_integer(__DRIscreen * psp,int param,unsigned int * value)713 i915_query_renderer_integer(__DRIscreen *psp, int param, unsigned int *value)
714 {
715 const struct intel_screen *const intelScreen =
716 (struct intel_screen *) psp->driverPrivate;
717
718 switch (param) {
719 case __DRI2_RENDERER_VENDOR_ID:
720 value[0] = 0x8086;
721 return 0;
722 case __DRI2_RENDERER_DEVICE_ID:
723 value[0] = intelScreen->deviceID;
724 return 0;
725 case __DRI2_RENDERER_ACCELERATED:
726 value[0] = 1;
727 return 0;
728 case __DRI2_RENDERER_VIDEO_MEMORY: {
729 /* Once a batch uses more than 75% of the maximum mappable size, we
730 * assume that there's some fragmentation, and we start doing extra
731 * flushing, etc. That's the big cliff apps will care about.
732 */
733 size_t aper_size;
734 size_t mappable_size;
735
736 drm_intel_get_aperture_sizes(psp->fd, &mappable_size, &aper_size);
737
738 const unsigned gpu_mappable_megabytes =
739 (aper_size / (1024 * 1024)) * 3 / 4;
740
741 const long system_memory_pages = sysconf(_SC_PHYS_PAGES);
742 const long system_page_size = sysconf(_SC_PAGE_SIZE);
743
744 if (system_memory_pages <= 0 || system_page_size <= 0)
745 return -1;
746
747 const uint64_t system_memory_bytes = (uint64_t) system_memory_pages
748 * (uint64_t) system_page_size;
749
750 const unsigned system_memory_megabytes =
751 (unsigned) (system_memory_bytes / (1024 * 1024));
752
753 value[0] = MIN2(system_memory_megabytes, gpu_mappable_megabytes);
754 return 0;
755 }
756 case __DRI2_RENDERER_UNIFIED_MEMORY_ARCHITECTURE:
757 value[0] = 1;
758 return 0;
759 case __DRI2_RENDERER_HAS_TEXTURE_3D:
760 value[0] = 1;
761 return 0;
762 default:
763 return driQueryRendererIntegerCommon(psp, param, value);
764 }
765
766 return -1;
767 }
768
769 static int
i915_query_renderer_string(__DRIscreen * psp,int param,const char ** value)770 i915_query_renderer_string(__DRIscreen *psp, int param, const char **value)
771 {
772 const struct intel_screen *intelScreen =
773 (struct intel_screen *) psp->driverPrivate;
774
775 switch (param) {
776 case __DRI2_RENDERER_VENDOR_ID:
777 value[0] = i915_vendor_string;
778 return 0;
779 case __DRI2_RENDERER_DEVICE_ID:
780 value[0] = i915_get_renderer_string(intelScreen->deviceID);
781 return 0;
782 default:
783 break;
784 }
785
786 return -1;
787 }
788
789 static const __DRI2rendererQueryExtension intelRendererQueryExtension = {
790 .base = { __DRI2_RENDERER_QUERY, 1 },
791
792 .queryInteger = i915_query_renderer_integer,
793 .queryString = i915_query_renderer_string
794 };
795
796 static const __DRIextension *intelScreenExtensions[] = {
797 &intelTexBufferExtension.base,
798 &intelFenceExtension.base,
799 &intelFlushExtension.base,
800 &intelImageExtension.base,
801 &intelRendererQueryExtension.base,
802 &dri2ConfigQueryExtension.base,
803 &dri2NoErrorExtension.base,
804 NULL
805 };
806
807 static bool
intel_get_param(__DRIscreen * psp,int param,int * value)808 intel_get_param(__DRIscreen *psp, int param, int *value)
809 {
810 int ret;
811 struct drm_i915_getparam gp;
812
813 memset(&gp, 0, sizeof(gp));
814 gp.param = param;
815 gp.value = value;
816
817 ret = drmCommandWriteRead(psp->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
818 if (ret) {
819 if (ret != -EINVAL)
820 _mesa_warning(NULL, "drm_i915_getparam: %d", ret);
821 return false;
822 }
823
824 return true;
825 }
826
827 static bool
intel_get_boolean(__DRIscreen * psp,int param)828 intel_get_boolean(__DRIscreen *psp, int param)
829 {
830 int value = 0;
831 return intel_get_param(psp, param, &value) && value;
832 }
833
834 static void
intelDestroyScreen(__DRIscreen * sPriv)835 intelDestroyScreen(__DRIscreen * sPriv)
836 {
837 struct intel_screen *intelScreen = sPriv->driverPrivate;
838
839 dri_bufmgr_destroy(intelScreen->bufmgr);
840 driDestroyOptionInfo(&intelScreen->optionCache);
841
842 free(intelScreen);
843 sPriv->driverPrivate = NULL;
844 }
845
846
847 /**
848 * This is called when we need to set up GL rendering to a new X window.
849 */
850 static GLboolean
intelCreateBuffer(__DRIscreen * driScrnPriv,__DRIdrawable * driDrawPriv,const struct gl_config * mesaVis,GLboolean isPixmap)851 intelCreateBuffer(__DRIscreen * driScrnPriv,
852 __DRIdrawable * driDrawPriv,
853 const struct gl_config * mesaVis, GLboolean isPixmap)
854 {
855 struct intel_renderbuffer *rb;
856 mesa_format rgbFormat;
857 struct gl_framebuffer *fb;
858
859 if (isPixmap)
860 return false;
861
862 fb = CALLOC_STRUCT(gl_framebuffer);
863 if (!fb)
864 return false;
865
866 _mesa_initialize_window_framebuffer(fb, mesaVis);
867
868 if (mesaVis->redBits == 5)
869 rgbFormat = MESA_FORMAT_B5G6R5_UNORM;
870 else if (mesaVis->sRGBCapable)
871 rgbFormat = MESA_FORMAT_B8G8R8A8_SRGB;
872 else if (mesaVis->alphaBits == 0)
873 rgbFormat = MESA_FORMAT_B8G8R8X8_UNORM;
874 else
875 rgbFormat = MESA_FORMAT_B8G8R8A8_UNORM;
876
877 /* setup the hardware-based renderbuffers */
878 rb = intel_create_renderbuffer(rgbFormat);
879 _mesa_attach_and_own_rb(fb, BUFFER_FRONT_LEFT, &rb->Base.Base);
880
881 if (mesaVis->doubleBufferMode) {
882 rb = intel_create_renderbuffer(rgbFormat);
883 _mesa_attach_and_own_rb(fb, BUFFER_BACK_LEFT, &rb->Base.Base);
884 }
885
886 /*
887 * Assert here that the gl_config has an expected depth/stencil bit
888 * combination: one of d24/s8, d16/s0, d0/s0. (See intelInitScreen2(),
889 * which constructs the advertised configs.)
890 */
891 if (mesaVis->depthBits == 24) {
892 assert(mesaVis->stencilBits == 8);
893
894 /*
895 * Use combined depth/stencil. Note that the renderbuffer is
896 * attached to two attachment points.
897 */
898 rb = intel_create_private_renderbuffer(MESA_FORMAT_Z24_UNORM_S8_UINT);
899 _mesa_attach_and_own_rb(fb, BUFFER_DEPTH, &rb->Base.Base);
900 _mesa_attach_and_reference_rb(fb, BUFFER_STENCIL, &rb->Base.Base);
901 }
902 else if (mesaVis->depthBits == 16) {
903 assert(mesaVis->stencilBits == 0);
904 rb = intel_create_private_renderbuffer(MESA_FORMAT_Z_UNORM16);
905 _mesa_attach_and_own_rb(fb, BUFFER_DEPTH, &rb->Base.Base);
906 }
907 else {
908 assert(mesaVis->depthBits == 0);
909 assert(mesaVis->stencilBits == 0);
910 }
911
912 /* now add any/all software-based renderbuffers we may need */
913 _swrast_add_soft_renderbuffers(fb,
914 false, /* never sw color */
915 false, /* never sw depth */
916 false, /* never sw stencil */
917 mesaVis->accumRedBits > 0,
918 false, /* never sw alpha */
919 false /* never sw aux */ );
920 driDrawPriv->driverPrivate = fb;
921
922 return true;
923 }
924
925 static void
intelDestroyBuffer(__DRIdrawable * driDrawPriv)926 intelDestroyBuffer(__DRIdrawable * driDrawPriv)
927 {
928 struct gl_framebuffer *fb = driDrawPriv->driverPrivate;
929
930 _mesa_reference_framebuffer(&fb, NULL);
931 }
932
933 /* There are probably better ways to do this, such as an
934 * init-designated function to register chipids and createcontext
935 * functions.
936 */
937 extern bool
938 i830CreateContext(int api,
939 const struct gl_config *mesaVis,
940 __DRIcontext *driContextPriv,
941 unsigned major_version,
942 unsigned minor_version,
943 uint32_t flags,
944 unsigned *error,
945 void *sharedContextPrivate);
946
947 extern bool
948 i915CreateContext(int api,
949 const struct gl_config *mesaVis,
950 __DRIcontext *driContextPriv,
951 unsigned major_version,
952 unsigned minor_version,
953 uint32_t flags,
954 unsigned *error,
955 void *sharedContextPrivate);
956
957 static GLboolean
intelCreateContext(gl_api api,const struct gl_config * mesaVis,__DRIcontext * driContextPriv,const struct __DriverContextConfig * ctx_config,unsigned * error,void * sharedContextPrivate)958 intelCreateContext(gl_api api,
959 const struct gl_config * mesaVis,
960 __DRIcontext * driContextPriv,
961 const struct __DriverContextConfig *ctx_config,
962 unsigned *error,
963 void *sharedContextPrivate)
964 {
965 bool success = false;
966
967 __DRIscreen *sPriv = driContextPriv->driScreenPriv;
968 struct intel_screen *intelScreen = sPriv->driverPrivate;
969
970 if (ctx_config->flags & ~(__DRI_CTX_FLAG_DEBUG | __DRI_CTX_FLAG_NO_ERROR)) {
971 *error = __DRI_CTX_ERROR_UNKNOWN_FLAG;
972 return false;
973 }
974
975 if (ctx_config->attribute_mask) {
976 *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
977 return false;
978 }
979
980 if (IS_GEN3(intelScreen->deviceID)) {
981 success = i915CreateContext(api, mesaVis, driContextPriv,
982 ctx_config->major_version,
983 ctx_config->minor_version,
984 ctx_config->flags,
985 error, sharedContextPrivate);
986 } else {
987 intelScreen->no_vbo = true;
988 success = i830CreateContext(api, mesaVis, driContextPriv,
989 ctx_config->major_version,
990 ctx_config->minor_version,
991 ctx_config->flags,
992 error, sharedContextPrivate);
993 }
994
995 if (success)
996 return true;
997
998 if (driContextPriv->driverPrivate != NULL)
999 intelDestroyContext(driContextPriv);
1000
1001 return false;
1002 }
1003
1004 static bool
intel_init_bufmgr(struct intel_screen * intelScreen)1005 intel_init_bufmgr(struct intel_screen *intelScreen)
1006 {
1007 __DRIscreen *spriv = intelScreen->driScrnPriv;
1008
1009 intelScreen->no_hw = getenv("INTEL_NO_HW") != NULL;
1010
1011 intelScreen->bufmgr = intel_bufmgr_gem_init(spriv->fd, BATCH_SZ);
1012 if (intelScreen->bufmgr == NULL) {
1013 fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n",
1014 __func__, __LINE__);
1015 return false;
1016 }
1017
1018 drm_intel_bufmgr_gem_enable_fenced_relocs(intelScreen->bufmgr);
1019
1020 if (!intel_get_boolean(spriv, I915_PARAM_HAS_RELAXED_DELTA)) {
1021 fprintf(stderr, "[%s: %u] Kernel 2.6.39 required.\n", __func__, __LINE__);
1022 return false;
1023 }
1024
1025 return true;
1026 }
1027
1028 static bool
intel_detect_swizzling(struct intel_screen * screen)1029 intel_detect_swizzling(struct intel_screen *screen)
1030 {
1031 drm_intel_bo *buffer;
1032 unsigned long flags = 0;
1033 unsigned long aligned_pitch;
1034 uint32_t tiling = I915_TILING_X;
1035 uint32_t swizzle_mode = 0;
1036
1037 buffer = drm_intel_bo_alloc_tiled(screen->bufmgr, "swizzle test",
1038 64, 64, 4,
1039 &tiling, &aligned_pitch, flags);
1040 if (buffer == NULL)
1041 return false;
1042
1043 drm_intel_bo_get_tiling(buffer, &tiling, &swizzle_mode);
1044 drm_intel_bo_unreference(buffer);
1045
1046 if (swizzle_mode == I915_BIT_6_SWIZZLE_NONE)
1047 return false;
1048 else
1049 return true;
1050 }
1051
1052 static __DRIconfig**
intel_screen_make_configs(__DRIscreen * dri_screen)1053 intel_screen_make_configs(__DRIscreen *dri_screen)
1054 {
1055 static const mesa_format formats[] = {
1056 MESA_FORMAT_B5G6R5_UNORM,
1057 MESA_FORMAT_B8G8R8A8_UNORM,
1058 MESA_FORMAT_B8G8R8X8_UNORM
1059 };
1060
1061 /* GLX_SWAP_COPY_OML is not supported due to page flipping. */
1062 static const GLenum back_buffer_modes[] = {
1063 __DRI_ATTRIB_SWAP_UNDEFINED, __DRI_ATTRIB_SWAP_NONE
1064 };
1065
1066 static const uint8_t singlesample_samples[1] = {0};
1067
1068 uint8_t depth_bits[4], stencil_bits[4];
1069 __DRIconfig **configs = NULL;
1070
1071 /* Generate singlesample configs without accumulation buffer. */
1072 for (int i = 0; i < ARRAY_SIZE(formats); i++) {
1073 __DRIconfig **new_configs;
1074 int num_depth_stencil_bits = 2;
1075
1076 /* Starting with DRI2 protocol version 1.1 we can request a depth/stencil
1077 * buffer that has a different number of bits per pixel than the color
1078 * buffer.
1079 */
1080 depth_bits[0] = 0;
1081 stencil_bits[0] = 0;
1082
1083 if (formats[i] == MESA_FORMAT_B5G6R5_UNORM) {
1084 depth_bits[1] = 16;
1085 stencil_bits[1] = 0;
1086 } else {
1087 depth_bits[1] = 24;
1088 stencil_bits[1] = 8;
1089 }
1090
1091 new_configs = driCreateConfigs(formats[i],
1092 depth_bits,
1093 stencil_bits,
1094 num_depth_stencil_bits,
1095 back_buffer_modes, 2,
1096 singlesample_samples, 1,
1097 false, false);
1098 configs = driConcatConfigs(configs, new_configs);
1099 }
1100
1101 /* Generate the minimum possible set of configs that include an
1102 * accumulation buffer.
1103 */
1104 for (int i = 0; i < ARRAY_SIZE(formats); i++) {
1105 __DRIconfig **new_configs;
1106
1107 if (formats[i] == MESA_FORMAT_B5G6R5_UNORM) {
1108 depth_bits[0] = 16;
1109 stencil_bits[0] = 0;
1110 } else {
1111 depth_bits[0] = 24;
1112 stencil_bits[0] = 8;
1113 }
1114
1115 new_configs = driCreateConfigs(formats[i],
1116 depth_bits, stencil_bits, 1,
1117 back_buffer_modes, 1,
1118 singlesample_samples, 1,
1119 true, false);
1120 configs = driConcatConfigs(configs, new_configs);
1121 }
1122
1123 if (configs == NULL) {
1124 fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
1125 __LINE__);
1126 return NULL;
1127 }
1128
1129 return configs;
1130 }
1131
1132 static void
set_max_gl_versions(struct intel_screen * screen)1133 set_max_gl_versions(struct intel_screen *screen)
1134 {
1135 __DRIscreen *psp = screen->driScrnPriv;
1136
1137 switch (screen->gen) {
1138 case 3: {
1139 bool has_fragment_shader = driQueryOptionb(&screen->optionCache, "fragment_shader");
1140 bool has_occlusion_query = driQueryOptionb(&screen->optionCache, "stub_occlusion_query");
1141
1142 psp->max_gl_core_version = 0;
1143 psp->max_gl_es1_version = 11;
1144 psp->max_gl_es2_version = 20;
1145
1146 if (has_fragment_shader && has_occlusion_query) {
1147 psp->max_gl_compat_version = 21;
1148 } else {
1149 psp->max_gl_compat_version = 14;
1150 }
1151 break;
1152 }
1153 case 2:
1154 psp->max_gl_core_version = 0;
1155 psp->max_gl_compat_version = 13;
1156 psp->max_gl_es1_version = 11;
1157 psp->max_gl_es2_version = 0;
1158 break;
1159 default:
1160 assert(!"unrecognized intel_screen::gen");
1161 break;
1162 }
1163 }
1164
1165 /**
1166 * This is the driver specific part of the createNewScreen entry point.
1167 * Called when using DRI2.
1168 *
1169 * \return the struct gl_config supported by this driver
1170 */
1171 static const
intelInitScreen2(__DRIscreen * psp)1172 __DRIconfig **intelInitScreen2(__DRIscreen *psp)
1173 {
1174 struct intel_screen *intelScreen;
1175
1176 if (psp->image.loader) {
1177 } else if (psp->dri2.loader->base.version <= 2 ||
1178 psp->dri2.loader->getBuffersWithFormat == NULL) {
1179 fprintf(stderr,
1180 "\nERROR! DRI2 loader with getBuffersWithFormat() "
1181 "support required\n");
1182 return false;
1183 }
1184
1185 /* Allocate the private area */
1186 intelScreen = calloc(1, sizeof *intelScreen);
1187 if (!intelScreen) {
1188 fprintf(stderr, "\nERROR! Allocating private area failed\n");
1189 return false;
1190 }
1191 /* parse information in __driConfigOptions */
1192 driParseOptionInfo(&intelScreen->optionCache, i915_config_options.xml);
1193
1194 intelScreen->driScrnPriv = psp;
1195 psp->driverPrivate = (void *) intelScreen;
1196
1197 if (!intel_init_bufmgr(intelScreen))
1198 return false;
1199
1200 intelScreen->deviceID = drm_intel_bufmgr_gem_get_devid(intelScreen->bufmgr);
1201
1202 if (IS_GEN3(intelScreen->deviceID)) {
1203 intelScreen->gen = 3;
1204 } else {
1205 intelScreen->gen = 2;
1206 }
1207
1208 intelScreen->hw_has_swizzling = intel_detect_swizzling(intelScreen);
1209
1210 set_max_gl_versions(intelScreen);
1211
1212 psp->extensions = intelScreenExtensions;
1213
1214 return (const __DRIconfig**) intel_screen_make_configs(psp);
1215 }
1216
1217 struct intel_buffer {
1218 __DRIbuffer base;
1219 struct intel_region *region;
1220 };
1221
1222 static __DRIbuffer *
intelAllocateBuffer(__DRIscreen * screen,unsigned attachment,unsigned format,int width,int height)1223 intelAllocateBuffer(__DRIscreen *screen,
1224 unsigned attachment, unsigned format,
1225 int width, int height)
1226 {
1227 struct intel_buffer *intelBuffer;
1228 struct intel_screen *intelScreen = screen->driverPrivate;
1229
1230 assert(attachment == __DRI_BUFFER_FRONT_LEFT ||
1231 attachment == __DRI_BUFFER_BACK_LEFT);
1232
1233 intelBuffer = calloc(1, sizeof *intelBuffer);
1234 if (intelBuffer == NULL)
1235 return NULL;
1236
1237 /* The front and back buffers are color buffers, which are X tiled. */
1238 intelBuffer->region = intel_region_alloc(intelScreen,
1239 I915_TILING_X,
1240 format / 8,
1241 width,
1242 height,
1243 true);
1244
1245 if (intelBuffer->region == NULL) {
1246 free(intelBuffer);
1247 return NULL;
1248 }
1249
1250 intel_region_flink(intelBuffer->region, &intelBuffer->base.name);
1251
1252 intelBuffer->base.attachment = attachment;
1253 intelBuffer->base.cpp = intelBuffer->region->cpp;
1254 intelBuffer->base.pitch = intelBuffer->region->pitch;
1255
1256 return &intelBuffer->base;
1257 }
1258
1259 static void
intelReleaseBuffer(__DRIscreen * screen,__DRIbuffer * buffer)1260 intelReleaseBuffer(__DRIscreen *screen, __DRIbuffer *buffer)
1261 {
1262 struct intel_buffer *intelBuffer = (struct intel_buffer *) buffer;
1263
1264 intel_region_release(&intelBuffer->region);
1265 free(intelBuffer);
1266 }
1267
1268
1269 static const struct __DriverAPIRec i915_driver_api = {
1270 .InitScreen = intelInitScreen2,
1271 .DestroyScreen = intelDestroyScreen,
1272 .CreateContext = intelCreateContext,
1273 .DestroyContext = intelDestroyContext,
1274 .CreateBuffer = intelCreateBuffer,
1275 .DestroyBuffer = intelDestroyBuffer,
1276 .MakeCurrent = intelMakeCurrent,
1277 .UnbindContext = intelUnbindContext,
1278 .AllocateBuffer = intelAllocateBuffer,
1279 .ReleaseBuffer = intelReleaseBuffer
1280 };
1281
1282 static const struct __DRIDriverVtableExtensionRec i915_vtable = {
1283 .base = { __DRI_DRIVER_VTABLE, 1 },
1284 .vtable = &i915_driver_api,
1285 };
1286
1287 /* This is the table of extensions that the loader will dlsym() for. */
1288 static const __DRIextension *i915_driver_extensions[] = {
1289 &driCoreExtension.base,
1290 &driImageDriverExtension.base,
1291 &driDRI2Extension.base,
1292 &i915_vtable.base,
1293 &i915_config_options.base,
1294 NULL
1295 };
1296
__driDriverGetExtensions_i915(void)1297 PUBLIC const __DRIextension **__driDriverGetExtensions_i915(void)
1298 {
1299 globalDriverAPI = &i915_driver_api;
1300
1301 return i915_driver_extensions;
1302 }
1303