1
2 #include "main/macros.h"
3 #include "main/mtypes.h"
4 #include "main/enums.h"
5 #include "main/bufferobj.h"
6 #include "main/context.h"
7 #include "main/formats.h"
8 #include "main/glformats.h"
9 #include "main/image.h"
10 #include "main/pbo.h"
11 #include "main/renderbuffer.h"
12 #include "main/texcompress.h"
13 #include "main/texgetimage.h"
14 #include "main/texobj.h"
15 #include "main/teximage.h"
16 #include "main/texstore.h"
17
18 #include "drivers/common/meta.h"
19
20 #include "intel_mipmap_tree.h"
21 #include "intel_buffer_objects.h"
22 #include "intel_batchbuffer.h"
23 #include "intel_tex.h"
24 #include "intel_blit.h"
25 #include "intel_fbo.h"
26 #include "intel_image.h"
27 #include "intel_tiled_memcpy.h"
28 #include "brw_context.h"
29
30 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
31
32 /* Make sure one doesn't end up shrinking base level zero unnecessarily.
33 * Determining the base level dimension by shifting higher level dimension
34 * ends up in off-by-one value in case base level has NPOT size (for example,
35 * 293 != 146 << 1).
36 * Choose the original base level dimension when shifted dimensions agree.
37 * Otherwise assume real resize is intended and use the new shifted value.
38 */
39 static unsigned
get_base_dim(unsigned old_base_dim,unsigned new_level_dim,unsigned level)40 get_base_dim(unsigned old_base_dim, unsigned new_level_dim, unsigned level)
41 {
42 const unsigned old_level_dim = old_base_dim >> level;
43 const unsigned new_base_dim = new_level_dim << level;
44
45 return old_level_dim == new_level_dim ? old_base_dim : new_base_dim;
46 }
47
48 /* Work back from the specified level of the image to the baselevel and create a
49 * miptree of that size.
50 */
51 struct intel_mipmap_tree *
intel_miptree_create_for_teximage(struct brw_context * brw,struct intel_texture_object * intelObj,struct intel_texture_image * intelImage,uint32_t layout_flags)52 intel_miptree_create_for_teximage(struct brw_context *brw,
53 struct intel_texture_object *intelObj,
54 struct intel_texture_image *intelImage,
55 uint32_t layout_flags)
56 {
57 GLuint lastLevel;
58 int width, height, depth;
59 const struct intel_mipmap_tree *old_mt = intelObj->mt;
60 const unsigned level = intelImage->base.Base.Level;
61
62 intel_get_image_dims(&intelImage->base.Base, &width, &height, &depth);
63
64 DBG("%s\n", __func__);
65
66 /* Figure out image dimensions at start level. */
67 switch(intelObj->base.Target) {
68 case GL_TEXTURE_2D_MULTISAMPLE:
69 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
70 case GL_TEXTURE_RECTANGLE:
71 case GL_TEXTURE_EXTERNAL_OES:
72 assert(level == 0);
73 break;
74 case GL_TEXTURE_3D:
75 depth = old_mt ? get_base_dim(old_mt->logical_depth0, depth, level) :
76 depth << level;
77 /* Fall through */
78 case GL_TEXTURE_2D:
79 case GL_TEXTURE_2D_ARRAY:
80 case GL_TEXTURE_CUBE_MAP:
81 case GL_TEXTURE_CUBE_MAP_ARRAY:
82 height = old_mt ? get_base_dim(old_mt->logical_height0, height, level) :
83 height << level;
84 /* Fall through */
85 case GL_TEXTURE_1D:
86 case GL_TEXTURE_1D_ARRAY:
87 width = old_mt ? get_base_dim(old_mt->logical_width0, width, level) :
88 width << level;
89 break;
90 default:
91 unreachable("Unexpected target");
92 }
93
94 /* Guess a reasonable value for lastLevel. This is probably going
95 * to be wrong fairly often and might mean that we have to look at
96 * resizable buffers, or require that buffers implement lazy
97 * pagetable arrangements.
98 */
99 if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
100 intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
101 intelImage->base.Base.Level == 0 &&
102 !intelObj->base.GenerateMipmap) {
103 lastLevel = 0;
104 } else {
105 lastLevel = _mesa_get_tex_max_num_levels(intelObj->base.Target,
106 width, height, depth) - 1;
107 }
108
109 return intel_miptree_create(brw,
110 intelObj->base.Target,
111 intelImage->base.Base.TexFormat,
112 0,
113 lastLevel,
114 width,
115 height,
116 depth,
117 intelImage->base.Base.NumSamples,
118 layout_flags | MIPTREE_LAYOUT_TILING_ANY);
119 }
120
121 static void
intelTexImage(struct gl_context * ctx,GLuint dims,struct gl_texture_image * texImage,GLenum format,GLenum type,const void * pixels,const struct gl_pixelstore_attrib * unpack)122 intelTexImage(struct gl_context * ctx,
123 GLuint dims,
124 struct gl_texture_image *texImage,
125 GLenum format, GLenum type, const void *pixels,
126 const struct gl_pixelstore_attrib *unpack)
127 {
128 struct intel_texture_image *intelImage = intel_texture_image(texImage);
129 bool ok;
130
131 bool tex_busy = intelImage->mt && drm_intel_bo_busy(intelImage->mt->bo);
132
133 DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
134 __func__, _mesa_get_format_name(texImage->TexFormat),
135 _mesa_enum_to_string(texImage->TexObject->Target),
136 _mesa_enum_to_string(format), _mesa_enum_to_string(type),
137 texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
138
139 /* Allocate storage for texture data. */
140 if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage)) {
141 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
142 return;
143 }
144
145 assert(intelImage->mt);
146
147 if (intelImage->mt->format == MESA_FORMAT_S_UINT8)
148 intelImage->mt->r8stencil_needs_update = true;
149
150 ok = _mesa_meta_pbo_TexSubImage(ctx, dims, texImage, 0, 0, 0,
151 texImage->Width, texImage->Height,
152 texImage->Depth,
153 format, type, pixels,
154 tex_busy, unpack);
155 if (ok)
156 return;
157
158 ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
159 0, 0, 0, /*x,y,z offsets*/
160 texImage->Width,
161 texImage->Height,
162 texImage->Depth,
163 format, type, pixels, unpack,
164 false /*allocate_storage*/);
165 if (ok)
166 return;
167
168 DBG("%s: upload image %dx%dx%d pixels %p\n",
169 __func__, texImage->Width, texImage->Height, texImage->Depth,
170 pixels);
171
172 _mesa_store_teximage(ctx, dims, texImage,
173 format, type, pixels, unpack);
174 }
175
176
177 static void
intel_set_texture_image_mt(struct brw_context * brw,struct gl_texture_image * image,GLenum internal_format,struct intel_mipmap_tree * mt)178 intel_set_texture_image_mt(struct brw_context *brw,
179 struct gl_texture_image *image,
180 GLenum internal_format,
181 struct intel_mipmap_tree *mt)
182
183 {
184 struct gl_texture_object *texobj = image->TexObject;
185 struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
186 struct intel_texture_image *intel_image = intel_texture_image(image);
187
188 _mesa_init_teximage_fields(&brw->ctx, image,
189 mt->logical_width0, mt->logical_height0, 1,
190 0, internal_format, mt->format);
191
192 brw->ctx.Driver.FreeTextureImageBuffer(&brw->ctx, image);
193
194 intel_texobj->needs_validate = true;
195 intel_image->base.RowStride = mt->pitch / mt->cpp;
196 assert(mt->pitch % mt->cpp == 0);
197
198 intel_miptree_reference(&intel_image->mt, mt);
199
200 /* Immediately validate the image to the object. */
201 intel_miptree_reference(&intel_texobj->mt, mt);
202 }
203
204 static struct intel_mipmap_tree *
create_mt_for_planar_dri_image(struct brw_context * brw,GLenum target,__DRIimage * image)205 create_mt_for_planar_dri_image(struct brw_context *brw,
206 GLenum target, __DRIimage *image)
207 {
208 struct intel_image_format *f = image->planar_format;
209 struct intel_mipmap_tree *planar_mt;
210
211 for (int i = 0; i < f->nplanes; i++) {
212 const int index = f->planes[i].buffer_index;
213 const uint32_t dri_format = f->planes[i].dri_format;
214 const mesa_format format = driImageFormatToGLFormat(dri_format);
215 const uint32_t width = image->width >> f->planes[i].width_shift;
216 const uint32_t height = image->height >> f->planes[i].height_shift;
217
218 /* Disable creation of the texture's aux buffers because the driver
219 * exposes no EGL API to manage them. That is, there is no API for
220 * resolving the aux buffer's content to the main buffer nor for
221 * invalidating the aux buffer's content.
222 */
223 struct intel_mipmap_tree *mt =
224 intel_miptree_create_for_bo(brw, image->bo, format,
225 image->offsets[index],
226 width, height, 1,
227 image->strides[index],
228 MIPTREE_LAYOUT_DISABLE_AUX);
229 if (mt == NULL)
230 return NULL;
231
232 mt->target = target;
233 mt->total_width = width;
234 mt->total_height = height;
235
236 if (i == 0)
237 planar_mt = mt;
238 else
239 planar_mt->plane[i - 1] = mt;
240 }
241
242 return planar_mt;
243 }
244
245 /**
246 * Binds a BO to a texture image, as if it was uploaded by glTexImage2D().
247 *
248 * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
249 */
250 static struct intel_mipmap_tree *
create_mt_for_dri_image(struct brw_context * brw,GLenum target,__DRIimage * image)251 create_mt_for_dri_image(struct brw_context *brw,
252 GLenum target, __DRIimage *image)
253 {
254 struct intel_mipmap_tree *mt;
255 uint32_t draw_x, draw_y;
256
257 /* Disable creation of the texture's aux buffers because the driver exposes
258 * no EGL API to manage them. That is, there is no API for resolving the aux
259 * buffer's content to the main buffer nor for invalidating the aux buffer's
260 * content.
261 */
262 mt = intel_miptree_create_for_bo(brw, image->bo, image->format,
263 0, image->width, image->height, 1,
264 image->pitch,
265 MIPTREE_LAYOUT_DISABLE_AUX);
266 if (mt == NULL)
267 return NULL;
268
269 mt->target = target;
270 mt->total_width = image->width;
271 mt->total_height = image->height;
272 mt->level[0].slice[0].x_offset = image->tile_x;
273 mt->level[0].slice[0].y_offset = image->tile_y;
274
275 intel_miptree_get_tile_offsets(mt, 0, 0, &draw_x, &draw_y);
276
277 /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
278 * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
279 * trouble resolving back to destination image due to alignment issues.
280 */
281 if (!brw->has_surface_tile_offset &&
282 (draw_x != 0 || draw_y != 0)) {
283 _mesa_error(&brw->ctx, GL_INVALID_OPERATION, __func__);
284 intel_miptree_release(&mt);
285 return NULL;
286 }
287
288 mt->offset = image->offset;
289
290 return mt;
291 }
292
293 void
intelSetTexBuffer2(__DRIcontext * pDRICtx,GLint target,GLint texture_format,__DRIdrawable * dPriv)294 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
295 GLint texture_format,
296 __DRIdrawable *dPriv)
297 {
298 struct gl_framebuffer *fb = dPriv->driverPrivate;
299 struct brw_context *brw = pDRICtx->driverPrivate;
300 struct gl_context *ctx = &brw->ctx;
301 struct intel_renderbuffer *rb;
302 struct gl_texture_object *texObj;
303 struct gl_texture_image *texImage;
304 mesa_format texFormat = MESA_FORMAT_NONE;
305 struct intel_mipmap_tree *mt;
306 GLenum internal_format = 0;
307
308 texObj = _mesa_get_current_tex_object(ctx, target);
309
310 if (!texObj)
311 return;
312
313 if (dPriv->lastStamp != dPriv->dri2.stamp ||
314 !pDRICtx->driScreenPriv->dri2.useInvalidate)
315 intel_update_renderbuffers(pDRICtx, dPriv);
316
317 rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
318 /* If the miptree isn't set, then intel_update_renderbuffers was unable
319 * to get the BO for the drawable from the window system.
320 */
321 if (!rb || !rb->mt)
322 return;
323
324 if (rb->mt->cpp == 4) {
325 if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
326 internal_format = GL_RGB;
327 texFormat = MESA_FORMAT_B8G8R8X8_UNORM;
328 }
329 else {
330 internal_format = GL_RGBA;
331 texFormat = MESA_FORMAT_B8G8R8A8_UNORM;
332 }
333 } else if (rb->mt->cpp == 2) {
334 internal_format = GL_RGB;
335 texFormat = MESA_FORMAT_B5G6R5_UNORM;
336 }
337
338 intel_miptree_make_shareable(brw, rb->mt);
339 mt = intel_miptree_create_for_bo(brw, rb->mt->bo, texFormat, 0,
340 rb->Base.Base.Width,
341 rb->Base.Base.Height,
342 1, rb->mt->pitch, 0);
343 if (mt == NULL)
344 return;
345 mt->target = target;
346 mt->total_width = rb->Base.Base.Width;
347 mt->total_height = rb->Base.Base.Height;
348
349 _mesa_lock_texture(&brw->ctx, texObj);
350 texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
351 intel_set_texture_image_mt(brw, texImage, internal_format, mt);
352 intel_miptree_release(&mt);
353 _mesa_unlock_texture(&brw->ctx, texObj);
354 }
355
356 static GLboolean
intel_bind_renderbuffer_tex_image(struct gl_context * ctx,struct gl_renderbuffer * rb,struct gl_texture_image * image)357 intel_bind_renderbuffer_tex_image(struct gl_context *ctx,
358 struct gl_renderbuffer *rb,
359 struct gl_texture_image *image)
360 {
361 struct intel_renderbuffer *irb = intel_renderbuffer(rb);
362 struct intel_texture_image *intel_image = intel_texture_image(image);
363 struct gl_texture_object *texobj = image->TexObject;
364 struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
365
366 /* We can only handle RB allocated with AllocRenderbufferStorage, or
367 * window-system renderbuffers.
368 */
369 assert(!rb->TexImage);
370
371 if (!irb->mt)
372 return false;
373
374 _mesa_lock_texture(ctx, texobj);
375 _mesa_init_teximage_fields(ctx, image,
376 rb->Width, rb->Height, 1,
377 0, rb->InternalFormat, rb->Format);
378 image->NumSamples = rb->NumSamples;
379
380 intel_miptree_reference(&intel_image->mt, irb->mt);
381
382 /* Immediately validate the image to the object. */
383 intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
384
385 intel_texobj->needs_validate = true;
386 _mesa_unlock_texture(ctx, texobj);
387
388 return true;
389 }
390
391 void
intelSetTexBuffer(__DRIcontext * pDRICtx,GLint target,__DRIdrawable * dPriv)392 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
393 {
394 /* The old interface didn't have the format argument, so copy our
395 * implementation's behavior at the time.
396 */
397 intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
398 }
399
400 static void
intel_image_target_texture_2d(struct gl_context * ctx,GLenum target,struct gl_texture_object * texObj,struct gl_texture_image * texImage,GLeglImageOES image_handle)401 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
402 struct gl_texture_object *texObj,
403 struct gl_texture_image *texImage,
404 GLeglImageOES image_handle)
405 {
406 struct brw_context *brw = brw_context(ctx);
407 struct intel_mipmap_tree *mt;
408 __DRIscreen *dri_screen = brw->screen->driScrnPriv;
409 __DRIimage *image;
410
411 image = dri_screen->dri2.image->lookupEGLImage(dri_screen, image_handle,
412 dri_screen->loaderPrivate);
413 if (image == NULL)
414 return;
415
416 /* We support external textures only for EGLImages created with
417 * EGL_EXT_image_dma_buf_import. We may lift that restriction in the future.
418 */
419 if (target == GL_TEXTURE_EXTERNAL_OES && !image->dma_buf_imported) {
420 _mesa_error(ctx, GL_INVALID_OPERATION,
421 "glEGLImageTargetTexture2DOES(external target is enabled only "
422 "for images created with EGL_EXT_image_dma_buf_import");
423 return;
424 }
425
426 /* Disallow depth/stencil textures: we don't have a way to pass the
427 * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
428 */
429 if (image->has_depthstencil) {
430 _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
431 return;
432 }
433
434 if (image->planar_format && image->planar_format->nplanes > 0)
435 mt = create_mt_for_planar_dri_image(brw, target, image);
436 else
437 mt = create_mt_for_dri_image(brw, target, image);
438 if (mt == NULL)
439 return;
440
441 struct intel_texture_object *intel_texobj = intel_texture_object(texObj);
442 intel_texobj->planar_format = image->planar_format;
443
444 const GLenum internal_format =
445 image->internal_format != 0 ?
446 image->internal_format : _mesa_get_format_base_format(mt->format);
447 intel_set_texture_image_mt(brw, texImage, internal_format, mt);
448 intel_miptree_release(&mt);
449 }
450
451 /**
452 * \brief A fast path for glGetTexImage.
453 *
454 * \see intel_readpixels_tiled_memcpy()
455 */
456 bool
intel_gettexsubimage_tiled_memcpy(struct gl_context * ctx,struct gl_texture_image * texImage,GLint xoffset,GLint yoffset,GLsizei width,GLsizei height,GLenum format,GLenum type,GLvoid * pixels,const struct gl_pixelstore_attrib * packing)457 intel_gettexsubimage_tiled_memcpy(struct gl_context *ctx,
458 struct gl_texture_image *texImage,
459 GLint xoffset, GLint yoffset,
460 GLsizei width, GLsizei height,
461 GLenum format, GLenum type,
462 GLvoid *pixels,
463 const struct gl_pixelstore_attrib *packing)
464 {
465 struct brw_context *brw = brw_context(ctx);
466 struct intel_texture_image *image = intel_texture_image(texImage);
467 int dst_pitch;
468
469 /* The miptree's buffer. */
470 drm_intel_bo *bo;
471
472 int error = 0;
473
474 uint32_t cpp;
475 mem_copy_fn mem_copy = NULL;
476
477 /* This fastpath is restricted to specific texture types:
478 * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
479 * more types.
480 *
481 * FINISHME: The restrictions below on packing alignment and packing row
482 * length are likely unneeded now because we calculate the destination stride
483 * with _mesa_image_row_stride. However, before removing the restrictions
484 * we need tests.
485 */
486 if (!brw->has_llc ||
487 !(type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) ||
488 !(texImage->TexObject->Target == GL_TEXTURE_2D ||
489 texImage->TexObject->Target == GL_TEXTURE_RECTANGLE) ||
490 pixels == NULL ||
491 _mesa_is_bufferobj(packing->BufferObj) ||
492 packing->Alignment > 4 ||
493 packing->SkipPixels > 0 ||
494 packing->SkipRows > 0 ||
495 (packing->RowLength != 0 && packing->RowLength != width) ||
496 packing->SwapBytes ||
497 packing->LsbFirst ||
498 packing->Invert)
499 return false;
500
501 /* We can't handle copying from RGBX or BGRX because the tiled_memcpy
502 * function doesn't set the last channel to 1. Note this checks BaseFormat
503 * rather than TexFormat in case the RGBX format is being simulated with an
504 * RGBA format.
505 */
506 if (texImage->_BaseFormat == GL_RGB)
507 return false;
508
509 if (!intel_get_memcpy(texImage->TexFormat, format, type, &mem_copy, &cpp))
510 return false;
511
512 /* If this is a nontrivial texture view, let another path handle it instead. */
513 if (texImage->TexObject->MinLayer)
514 return false;
515
516 if (!image->mt ||
517 (image->mt->tiling != I915_TILING_X &&
518 image->mt->tiling != I915_TILING_Y)) {
519 /* The algorithm is written only for X- or Y-tiled memory. */
520 return false;
521 }
522
523 /* Since we are going to write raw data to the miptree, we need to resolve
524 * any pending fast color clears before we start.
525 */
526 intel_miptree_all_slices_resolve_color(brw, image->mt, 0);
527
528 bo = image->mt->bo;
529
530 if (drm_intel_bo_references(brw->batch.bo, bo)) {
531 perf_debug("Flushing before mapping a referenced bo.\n");
532 intel_batchbuffer_flush(brw);
533 }
534
535 error = brw_bo_map(brw, bo, false /* write enable */, "miptree");
536 if (error) {
537 DBG("%s: failed to map bo\n", __func__);
538 return false;
539 }
540
541 dst_pitch = _mesa_image_row_stride(packing, width, format, type);
542
543 DBG("%s: level=%d x,y=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
544 "mesa_format=0x%x tiling=%d "
545 "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d)\n",
546 __func__, texImage->Level, xoffset, yoffset, width, height,
547 format, type, texImage->TexFormat, image->mt->tiling,
548 packing->Alignment, packing->RowLength, packing->SkipPixels,
549 packing->SkipRows);
550
551 int level = texImage->Level + texImage->TexObject->MinLevel;
552
553 /* Adjust x and y offset based on miplevel */
554 xoffset += image->mt->level[level].level_x;
555 yoffset += image->mt->level[level].level_y;
556
557 tiled_to_linear(
558 xoffset * cpp, (xoffset + width) * cpp,
559 yoffset, yoffset + height,
560 pixels - (ptrdiff_t) yoffset * dst_pitch - (ptrdiff_t) xoffset * cpp,
561 bo->virtual,
562 dst_pitch, image->mt->pitch,
563 brw->has_swizzling,
564 image->mt->tiling,
565 mem_copy
566 );
567
568 drm_intel_bo_unmap(bo);
569 return true;
570 }
571
572 static void
intel_get_tex_sub_image(struct gl_context * ctx,GLint xoffset,GLint yoffset,GLint zoffset,GLsizei width,GLsizei height,GLint depth,GLenum format,GLenum type,GLvoid * pixels,struct gl_texture_image * texImage)573 intel_get_tex_sub_image(struct gl_context *ctx,
574 GLint xoffset, GLint yoffset, GLint zoffset,
575 GLsizei width, GLsizei height, GLint depth,
576 GLenum format, GLenum type, GLvoid *pixels,
577 struct gl_texture_image *texImage)
578 {
579 struct brw_context *brw = brw_context(ctx);
580 bool ok;
581
582 DBG("%s\n", __func__);
583
584 if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
585 if (_mesa_meta_pbo_GetTexSubImage(ctx, 3, texImage,
586 xoffset, yoffset, zoffset,
587 width, height, depth, format, type,
588 pixels, &ctx->Pack)) {
589 /* Flush to guarantee coherency between the render cache and other
590 * caches the PBO could potentially be bound to after this point.
591 * See the related comment in intelReadPixels() for a more detailed
592 * explanation.
593 */
594 brw_emit_mi_flush(brw);
595 return;
596 }
597
598 perf_debug("%s: fallback to CPU mapping in PBO case\n", __func__);
599 }
600
601 ok = intel_gettexsubimage_tiled_memcpy(ctx, texImage, xoffset, yoffset,
602 width, height,
603 format, type, pixels, &ctx->Pack);
604
605 if(ok)
606 return;
607
608 _mesa_meta_GetTexSubImage(ctx, xoffset, yoffset, zoffset,
609 width, height, depth,
610 format, type, pixels, texImage);
611
612 DBG("%s - DONE\n", __func__);
613 }
614
615 static void
flush_astc_denorms(struct gl_context * ctx,GLuint dims,struct gl_texture_image * texImage,GLint xoffset,GLint yoffset,GLint zoffset,GLsizei width,GLsizei height,GLsizei depth)616 flush_astc_denorms(struct gl_context *ctx, GLuint dims,
617 struct gl_texture_image *texImage,
618 GLint xoffset, GLint yoffset, GLint zoffset,
619 GLsizei width, GLsizei height, GLsizei depth)
620 {
621 struct compressed_pixelstore store;
622 _mesa_compute_compressed_pixelstore(dims, texImage->TexFormat,
623 width, height, depth,
624 &ctx->Unpack, &store);
625
626 for (int slice = 0; slice < store.CopySlices; slice++) {
627
628 /* Map dest texture buffer */
629 GLubyte *dstMap;
630 GLint dstRowStride;
631 ctx->Driver.MapTextureImage(ctx, texImage, slice + zoffset,
632 xoffset, yoffset, width, height,
633 GL_MAP_READ_BIT | GL_MAP_WRITE_BIT,
634 &dstMap, &dstRowStride);
635 if (!dstMap)
636 continue;
637
638 for (int i = 0; i < store.CopyRowsPerSlice; i++) {
639
640 /* An ASTC block is stored in little endian mode. The byte that
641 * contains bits 0..7 is stored at the lower address in memory.
642 */
643 struct astc_void_extent {
644 uint16_t header : 12;
645 uint16_t dontcare[3];
646 uint16_t R;
647 uint16_t G;
648 uint16_t B;
649 uint16_t A;
650 } *blocks = (struct astc_void_extent*) dstMap;
651
652 /* Iterate over every copied block in the row */
653 for (int j = 0; j < store.CopyBytesPerRow / 16; j++) {
654
655 /* Check if the header matches that of an LDR void-extent block */
656 if (blocks[j].header == 0xDFC) {
657
658 /* Flush UNORM16 values that would be denormalized */
659 if (blocks[j].A < 4) blocks[j].A = 0;
660 if (blocks[j].B < 4) blocks[j].B = 0;
661 if (blocks[j].G < 4) blocks[j].G = 0;
662 if (blocks[j].R < 4) blocks[j].R = 0;
663 }
664 }
665
666 dstMap += dstRowStride;
667 }
668
669 ctx->Driver.UnmapTextureImage(ctx, texImage, slice + zoffset);
670 }
671 }
672
673
674 static void
intelCompressedTexSubImage(struct gl_context * ctx,GLuint dims,struct gl_texture_image * texImage,GLint xoffset,GLint yoffset,GLint zoffset,GLsizei width,GLsizei height,GLsizei depth,GLenum format,GLsizei imageSize,const GLvoid * data)675 intelCompressedTexSubImage(struct gl_context *ctx, GLuint dims,
676 struct gl_texture_image *texImage,
677 GLint xoffset, GLint yoffset, GLint zoffset,
678 GLsizei width, GLsizei height, GLsizei depth,
679 GLenum format,
680 GLsizei imageSize, const GLvoid *data)
681 {
682 /* Upload the compressed data blocks */
683 _mesa_store_compressed_texsubimage(ctx, dims, texImage,
684 xoffset, yoffset, zoffset,
685 width, height, depth,
686 format, imageSize, data);
687
688 /* Fix up copied ASTC blocks if necessary */
689 GLenum gl_format = _mesa_compressed_format_to_glenum(ctx,
690 texImage->TexFormat);
691 bool is_linear_astc = _mesa_is_astc_format(gl_format) &&
692 !_mesa_is_srgb_format(gl_format);
693 struct brw_context *brw = (struct brw_context*) ctx;
694 if (brw->gen == 9 && is_linear_astc)
695 flush_astc_denorms(ctx, dims, texImage,
696 xoffset, yoffset, zoffset,
697 width, height, depth);
698 }
699
700 void
intelInitTextureImageFuncs(struct dd_function_table * functions)701 intelInitTextureImageFuncs(struct dd_function_table *functions)
702 {
703 functions->TexImage = intelTexImage;
704 functions->CompressedTexSubImage = intelCompressedTexSubImage;
705 functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
706 functions->BindRenderbufferTexImage = intel_bind_renderbuffer_tex_image;
707 functions->GetTexSubImage = intel_get_tex_sub_image;
708 }
709