1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
|
/*
* Copyright 2009, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// Implementations of the abstract Texture2D and TextureCUBE classes using
// the OpenCB graphics API.
#include "core/cross/error.h"
#include "core/cross/types.h"
#include "core/cross/command_buffer/renderer_cb.h"
#include "core/cross/command_buffer/texture_cb.h"
#include "command_buffer/common/cross/cmd_buffer_format.h"
#include "command_buffer/common/cross/resource.h"
#include "command_buffer/client/cross/cmd_buffer_helper.h"
#include "command_buffer/client/cross/fenced_allocator.h"
namespace o3d {
using command_buffer::CommandBufferEntry;
using command_buffer::CommandBufferHelper;
using command_buffer::FencedAllocatorWrapper;
using command_buffer::ResourceId;
namespace texture = command_buffer::texture;
namespace {
const Texture::RGBASwizzleIndices g_cb_abgr32f_swizzle_indices =
{0, 1, 2, 3};
// Converts an O3D texture format to a command buffer texture format.
texture::Format CBFormatFromO3DFormat(Texture::Format format) {
switch (format) {
case Texture::XRGB8:
return texture::kXRGB8;
case Texture::ARGB8:
return texture::kARGB8;
case Texture::ABGR16F:
return texture::kABGR16F;
case Texture::DXT1:
return texture::kDXT1;
// TODO: DXT3/5. It's not yet supported by the command buffer
// renderer, though it would be a simple addition.
default:
break;
}
// failed to find a matching format
LOG(ERROR) << "Unrecognized Texture format type.";
return texture::kNumFormats;
}
// Checks that enums match in value, so that they can be directly used in
// SetTextureData::Face bitfields.
COMPILE_ASSERT(TextureCUBE::FACE_POSITIVE_X == texture::kFacePositiveX,
FACE_POSITIVE_X_enums_don_t_match);
COMPILE_ASSERT(TextureCUBE::FACE_NEGATIVE_X == texture::kFaceNegativeX,
FACE_NEGATIVE_X_enums_don_t_match);
COMPILE_ASSERT(TextureCUBE::FACE_POSITIVE_Y == texture::kFacePositiveY,
FACE_POSITIVE_Y_enums_don_t_match);
COMPILE_ASSERT(TextureCUBE::FACE_NEGATIVE_Y == texture::kFaceNegativeY,
FACE_NEGATIVE_Y_enums_don_t_match);
COMPILE_ASSERT(TextureCUBE::FACE_POSITIVE_Z == texture::kFacePositiveZ,
FACE_POSITIVE_Z_enums_don_t_match);
COMPILE_ASSERT(TextureCUBE::FACE_NEGATIVE_Z == texture::kFaceNegativeZ,
FACE_NEGATIVE_Z_enums_don_t_match);
// Writes the data information into a buffer to be sent to the server side.
void SetTextureDataBuffer(Texture::Format format,
const void* src_data,
int src_pitch,
unsigned src_width,
unsigned src_height,
void* dst_buffer,
unsigned int dst_pitch) {
const uint8* src = static_cast<const uint8*>(src_data);
uint8* dst = static_cast<uint8*>(dst_buffer);
size_t bytes_per_row = image::ComputePitch(format, src_width);
unsigned num_rows = src_height;
if (Texture::IsCompressedFormat(format)) {
num_rows = (num_rows + 3) / 4;
}
for (unsigned yy = 0; yy < num_rows; ++yy) {
memcpy(dst, src, bytes_per_row);
src += src_pitch;
dst += dst_pitch;
}
}
// Sends the SetTextureData command after formatting the args properly.
void SetTextureData(RendererCB *renderer,
ResourceId texture_id,
unsigned int x,
unsigned int y,
unsigned int mip_width,
unsigned int mip_height,
unsigned int z,
unsigned int depth,
unsigned int level,
TextureCUBE::CubeFace face,
int pitch,
size_t mip_size,
unsigned char* mip_data) {
FencedAllocatorWrapper *allocator = renderer->allocator();
CommandBufferHelper *helper = renderer->helper();
helper->SetTextureData(
texture_id,
x, y, z,
mip_width, mip_height, depth,
level, static_cast<texture::Face>(face),
pitch,
0, // slice_pitch
mip_size,
renderer->transfer_shm_id(),
allocator->GetOffset(mip_data));
allocator->FreePendingToken(mip_data, helper->InsertToken());
}
// Updates a command buffer texture resource from a bitmap, rescaling if
// necessary.
void UpdateResourceFromBitmap(RendererCB *renderer,
ResourceId texture_id,
unsigned int level,
TextureCUBE::CubeFace face,
const Bitmap &bitmap) {
DCHECK(bitmap.image_data());
FencedAllocatorWrapper *allocator = renderer->allocator();
CommandBufferHelper *helper = renderer->helper();
unsigned int mip_width = std::max(1U, bitmap.width() >> level);
unsigned int mip_height = std::max(1U, bitmap.height() >> level);
unsigned char *mip_data = bitmap.GetMipData(level);
size_t mip_size =
image::ComputeBufferSize(mip_width, mip_height, bitmap.format());
unsigned char *buffer = allocator->AllocTyped<unsigned char>(mip_size);
DCHECK(buffer);
memcpy(buffer, mip_data, mip_size);
mip_data = buffer;
size_t pitch = image::ComputeBufferSize(mip_width, 1, bitmap.format());
SetTextureData(renderer,
texture_id,
0,
0,
mip_width,
mip_height,
0,
1,
level,
face,
pitch,
mip_size,
mip_data);
}
// Copies back texture resource data into a bitmap.
void CopyBackResourceToBitmap(RendererCB *renderer,
ResourceId texture_id,
unsigned int level,
TextureCUBE::CubeFace face,
const Bitmap &bitmap) {
DCHECK(bitmap.image_data());
FencedAllocatorWrapper *allocator = renderer->allocator();
CommandBufferHelper *helper = renderer->helper();
unsigned int mip_width = std::max(1U, bitmap.width() >> level);
unsigned int mip_height = std::max(1U, bitmap.height() >> level);
size_t mip_size =
image::ComputeBufferSize(mip_width, mip_height, bitmap.format());
unsigned char *buffer = allocator->AllocTyped<unsigned char>(mip_size);
DCHECK(buffer);
size_t pitch = image::ComputeBufferSize(mip_width, 1, bitmap.format());
helper->GetTextureData(
texture_id,
0,
0,
0,
mip_width,
mip_height,
1,
level,
static_cast<texture::Face>(face),
pitch,
0,
mip_size,
renderer->transfer_shm_id(),
allocator->GetOffset(buffer));
helper->Finish();
memcpy(bitmap.GetMipData(level), buffer, mip_size);
allocator->Free(buffer);
}
} // anonymous namespace
static const unsigned int kMaxTextureSize = 2048;
// Texture2DCB -----------------------------------------------------------------
// Constructs a 2D texture object from an existing command-buffer 2D texture
// resource.
// NOTE: the Texture2DCB now owns the texture resource and will destroy it on
// exit.
Texture2DCB::Texture2DCB(ServiceLocator* service_locator,
ResourceId resource_id,
Texture::Format format,
int levels,
int width,
int height,
bool enable_render_surfaces)
: Texture2D(service_locator,
width,
height,
format,
levels,
enable_render_surfaces),
renderer_(static_cast<RendererCB*>(
service_locator->GetService<Renderer>())),
resource_id_(resource_id),
backing_bitmap_(Bitmap::Ref(new Bitmap(service_locator))),
has_levels_(0),
locked_levels_(0) {
DCHECK_NE(format, Texture::UNKNOWN_FORMAT);
}
Texture2DCB::~Texture2DCB() {
if (resource_id_ != command_buffer::kInvalidResource) {
renderer_->helper()->DestroyTexture(resource_id_);
}
}
// Creates a new texture object from scratch.
Texture2DCB* Texture2DCB::Create(ServiceLocator* service_locator,
Texture::Format format,
int levels,
int width,
int height,
bool enable_render_surfaces) {
DCHECK_NE(format, Texture::UNKNOWN_FORMAT);
RendererCB *renderer = static_cast<RendererCB *>(
service_locator->GetService<Renderer>());
texture::Format cb_format = CBFormatFromO3DFormat(format);
if (cb_format == texture::kNumFormats) {
O3D_ERROR(service_locator)
<< "Unsupported format in Texture2DCB::Create.";
return NULL;
}
if (width > kMaxTextureSize || height > kMaxTextureSize) {
O3D_ERROR(service_locator) << "Texture dimensions (" << width
<< ", " << height << ") too big.";
return NULL;
}
ResourceId texture_id = renderer->texture_ids().AllocateID();
renderer->helper()->CreateTexture2d(
texture_id,
width, height,
levels, cb_format, enable_render_surfaces);
Texture2DCB *texture = new Texture2DCB(service_locator, texture_id,
format, levels, width, height,
enable_render_surfaces);
return texture;
}
void Texture2DCB::SetRect(int level,
unsigned dst_left,
unsigned dst_top,
unsigned src_width,
unsigned src_height,
const void* src_data,
int src_pitch) {
if (level >= levels() || level < 0) {
O3D_ERROR(service_locator())
<< "Trying to SetRect on non-existent level " << level
<< " on Texture \"" << name() << "\"";
return;
}
if (render_surfaces_enabled()) {
O3D_ERROR(service_locator())
<< "Attempting to SetRect a render-target texture: " << name();
return;
}
unsigned mip_width = image::ComputeMipDimension(level, width());
unsigned mip_height = image::ComputeMipDimension(level, height());
if (dst_left + src_width > mip_width ||
dst_top + src_height > mip_height) {
O3D_ERROR(service_locator())
<< "SetRect(" << level << ", " << dst_left << ", " << dst_top << ", "
<< src_width << ", " << src_height << ") out of range for texture << \""
<< name() << "\"";
return;
}
bool entire_rect = dst_left == 0 && dst_top == 0 &&
src_width == mip_width && src_height == mip_height;
bool compressed = IsCompressed();
if (compressed && !entire_rect) {
O3D_ERROR(service_locator())
<< "SetRect must be full rectangle for compressed textures";
return;
}
unsigned int dst_pitch = image::ComputePitch(format(), src_width);
size_t size = dst_pitch * src_height;
FencedAllocatorWrapper *allocator = renderer_->allocator();
uint8 *buffer = allocator->AllocTyped<uint8>(size);
DCHECK(buffer);
SetTextureDataBuffer(format(), src_data, src_pitch, src_width, src_height,
buffer, dst_pitch);
SetTextureData(renderer_,
resource_id(),
dst_left,
dst_top,
src_width,
src_height,
0,
1,
level,
TextureCUBE::CubeFace(0),
dst_pitch,
size,
buffer);
}
// Locks the given mipmap level of this texture for loading from main memory,
// and returns a pointer to the buffer.
bool Texture2DCB::PlatformSpecificLock(
int level, void** data, int* pitch, AccessMode mode) {
DCHECK_GE(level, 0);
DCHECK_LT(level, levels());
if (!backing_bitmap_->image_data()) {
DCHECK_EQ(has_levels_, 0);
backing_bitmap_->Allocate(format(), width(), height(), levels(),
Bitmap::IMAGE);
}
*data = backing_bitmap_->GetMipData(level);
unsigned int mip_width = image::ComputeMipDimension(level, width());
unsigned int mip_height = image::ComputeMipDimension(level, height());
if (!IsCompressed()) {
*pitch = image::ComputePitch(format(), mip_width);
} else {
unsigned blocks_across = (mip_width + 3) / 4;
unsigned bytes_per_block = format() == Texture::DXT1 ? 8 : 16;
unsigned bytes_per_row = bytes_per_block * blocks_across;
*pitch = bytes_per_row;
}
if (mode != kWriteOnly && !HasLevel(level)) {
DCHECK_EQ(backing_bitmap_->width(), width());
DCHECK_EQ(backing_bitmap_->height(), height());
DCHECK_EQ(backing_bitmap_->format(), format());
DCHECK_GT(backing_bitmap_->num_mipmaps(), static_cast<unsigned int>(level));
CopyBackResourceToBitmap(renderer_, resource_id_, level,
TextureCUBE::FACE_POSITIVE_X,
*backing_bitmap_.Get());
has_levels_ |= 1 << level;
}
locked_levels_ |= 1 << level;
return true;
}
// Unlocks the given mipmap level of this texture, uploading the main memory
// data buffer to the command buffer service.
bool Texture2DCB::PlatformSpecificUnlock(int level) {
DCHECK_GE(level, 0);
DCHECK_LT(level, levels());
DCHECK(backing_bitmap_->image_data());
DCHECK_EQ(backing_bitmap_->width(), width());
DCHECK_EQ(backing_bitmap_->height(), height());
DCHECK_EQ(backing_bitmap_->format(), format());
DCHECK_GT(backing_bitmap_->num_mipmaps(), static_cast<unsigned int>(level));
if (LockedMode(level) != kReadOnly) {
UpdateResourceFromBitmap(renderer_, resource_id_, level,
TextureCUBE::FACE_POSITIVE_X,
*backing_bitmap_.Get());
}
locked_levels_ &= ~(1 << level);
if (locked_levels_ == 0) {
backing_bitmap_->FreeData();
has_levels_ = 0;
}
return true;
}
RenderSurface::Ref Texture2DCB::PlatformSpecificGetRenderSurface(
int mip_level) {
DCHECK_LT(mip_level, levels());
if (!render_surfaces_enabled()) {
O3D_ERROR(service_locator())
<< "Attempting to get RenderSurface from non-render-surface-enabled"
<< " Texture: " << name();
return RenderSurface::Ref(NULL);
}
if (mip_level >= levels() || mip_level < 0) {
O3D_ERROR(service_locator())
<< "Attempting to access non-existent mip_level " << mip_level
<< " in render-target texture \"" << name() << "\".";
return RenderSurface::Ref(NULL);
}
return RenderSurface::Ref(new RenderSurfaceCB(service_locator(),
width() >> mip_level,
height() >> mip_level,
mip_level,
0,
this,
renderer_));
}
const Texture::RGBASwizzleIndices& Texture2DCB::GetABGR32FSwizzleIndices() {
return g_cb_abgr32f_swizzle_indices;
}
// TextureCUBECB ---------------------------------------------------------------
// Creates a texture from a pre-existing texture resource.
TextureCUBECB::TextureCUBECB(ServiceLocator* service_locator,
ResourceId resource_id,
Texture::Format format,
int levels,
int edge_length,
bool enable_render_surfaces)
: TextureCUBE(service_locator,
edge_length,
format,
levels,
enable_render_surfaces),
renderer_(static_cast<RendererCB*>(
service_locator->GetService<Renderer>())),
resource_id_(resource_id) {
for (int ii = 0; ii < static_cast<int>(NUMBER_OF_FACES); ++ii) {
backing_bitmaps_[ii] = Bitmap::Ref(new Bitmap(service_locator));
has_levels_[ii] = 0;
locked_levels_[ii] = 0;
}
}
TextureCUBECB::~TextureCUBECB() {
if (resource_id_ != command_buffer::kInvalidResource) {
renderer_->helper()->DestroyTexture(resource_id_);
}
}
// Create a new Cube texture from scratch.
TextureCUBECB* TextureCUBECB::Create(ServiceLocator* service_locator,
Texture::Format format,
int levels,
int edge_length,
bool enable_render_surfaces) {
DCHECK_NE(format, Texture::UNKNOWN_FORMAT);
RendererCB *renderer = static_cast<RendererCB *>(
service_locator->GetService<Renderer>());
texture::Format cb_format = CBFormatFromO3DFormat(format);
if (cb_format == texture::kNumFormats) {
O3D_ERROR(service_locator)
<< "Unsupported format in Texture2DCB::Create.";
return NULL;
}
if (edge_length > kMaxTextureSize) {
O3D_ERROR(service_locator) << "Texture dimensions (" << edge_length
<< ", " << edge_length << ") too big.";
return NULL;
}
ResourceId texture_id = renderer->texture_ids().AllocateID();
renderer->helper()->CreateTextureCube(
texture_id,
edge_length,
levels, cb_format, enable_render_surfaces);
TextureCUBECB* texture =
new TextureCUBECB(service_locator, texture_id, format, levels,
edge_length, enable_render_surfaces);
return texture;
}
void TextureCUBECB::SetRect(TextureCUBE::CubeFace face,
int level,
unsigned dst_left,
unsigned dst_top,
unsigned src_width,
unsigned src_height,
const void* src_data,
int src_pitch) {
if (static_cast<int>(face) < 0 || static_cast<int>(face) >= NUMBER_OF_FACES) {
O3D_ERROR(service_locator())
<< "Trying to SetRect invalid face " << face << " on Texture \""
<< name() << "\"";
return;
}
if (level >= levels() || level < 0) {
O3D_ERROR(service_locator())
<< "Trying to SetRect non-existent level " << level
<< " on Texture \"" << name() << "\"";
return;
}
if (render_surfaces_enabled()) {
O3D_ERROR(service_locator())
<< "Attempting to SetRect a render-target texture: " << name();
return;
}
unsigned mip_width = image::ComputeMipDimension(level, edge_length());
unsigned mip_height = mip_width;
if (dst_left + src_width > mip_width ||
dst_top + src_height > mip_height) {
O3D_ERROR(service_locator())
<< "SetRect(" << level << ", " << dst_left << ", " << dst_top << ", "
<< src_width << ", " << src_height << ") out of range for texture << \""
<< name() << "\"";
return;
}
bool entire_rect = dst_left == 0 && dst_top == 0 &&
src_width == mip_width && src_height == mip_height;
bool compressed = IsCompressed();
if (compressed && !entire_rect) {
O3D_ERROR(service_locator())
<< "SetRect must be full rectangle for compressed textures";
return;
}
unsigned int dst_pitch = image::ComputePitch(format(), src_width);
size_t size = dst_pitch * src_height;
FencedAllocatorWrapper *allocator = renderer_->allocator();
uint8 *buffer = allocator->AllocTyped<uint8>(size);
DCHECK(buffer);
SetTextureDataBuffer(format(), src_data, src_pitch, src_width, src_height,
buffer, dst_pitch);
SetTextureData(renderer_,
resource_id(),
dst_left,
dst_top,
src_width,
src_height,
0,
1,
level,
face,
dst_pitch,
size,
buffer);
}
// Locks the given face and mipmap level of this texture for loading from
// main memory, and returns a pointer to the buffer.
bool TextureCUBECB::PlatformSpecificLock(
CubeFace face, int level, void** data, int* pitch,
Texture::AccessMode mode) {
DCHECK(data);
DCHECK(pitch);
DCHECK_GE(level, 0);
DCHECK_LT(level, levels());
Bitmap* backing_bitmap = backing_bitmaps_[face].Get();
if (!backing_bitmap->image_data()) {
DCHECK_EQ(has_levels_[face], 0);
backing_bitmap->Allocate(format(), edge_length(), edge_length(), levels(),
Bitmap::IMAGE);
}
*data = backing_bitmap->GetMipData(level);
unsigned int mip_width = image::ComputeMipDimension(level, edge_length());
if (!IsCompressed()) {
*pitch = image::ComputePitch(format(), mip_width);
} else {
unsigned blocks_across = (mip_width + 3) / 4;
unsigned bytes_per_block = format() == Texture::DXT1 ? 8 : 16;
unsigned bytes_per_row = bytes_per_block * blocks_across;
*pitch = bytes_per_row;
}
if (mode != kWriteOnly && !HasLevel(face, level)) {
DCHECK_EQ(backing_bitmap->width(), edge_length());
DCHECK_EQ(backing_bitmap->height(), edge_length());
DCHECK_EQ(backing_bitmap->format(), format());
DCHECK_GT(backing_bitmap->num_mipmaps(), static_cast<unsigned int>(level));
CopyBackResourceToBitmap(renderer_, resource_id_, level,
TextureCUBE::FACE_POSITIVE_X, *backing_bitmap);
has_levels_[face] |= 1 << level;
}
locked_levels_[face] |= 1 << level;
return false;
}
// Unlocks the given face and mipmap level of this texture.
bool TextureCUBECB::PlatformSpecificUnlock(CubeFace face, int level) {
DCHECK_GE(level, 0);
DCHECK_LT(level, levels());
Bitmap* backing_bitmap = backing_bitmaps_[face].Get();
DCHECK(backing_bitmap->image_data());
DCHECK_EQ(backing_bitmap->width(), edge_length());
DCHECK_EQ(backing_bitmap->height(), edge_length());
DCHECK_EQ(backing_bitmap->format(), format());
DCHECK_GT(backing_bitmap->num_mipmaps(), static_cast<unsigned int>(level));
if (LockedMode(face, level) != kReadOnly) {
UpdateResourceFromBitmap(renderer_, resource_id_, level, face,
*backing_bitmap);
}
locked_levels_[face] &= ~(1 << level);
if (locked_levels_[face] == 0) {
backing_bitmap->FreeData();
has_levels_[face] = 0;
}
return false;
}
RenderSurface::Ref TextureCUBECB::PlatformSpecificGetRenderSurface(
TextureCUBE::CubeFace face,
int mip_level) {
DCHECK_LT(mip_level, levels());
if (!render_surfaces_enabled()) {
O3D_ERROR(service_locator())
<< "Attempting to get RenderSurface from non-render-surface-enabled"
<< " Texture: " << name();
return RenderSurface::Ref(NULL);
}
if (mip_level >= levels() || mip_level < 0) {
O3D_ERROR(service_locator())
<< "Attempting to access non-existent mip_level " << mip_level
<< " in render-target texture \"" << name() << "\".";
return RenderSurface::Ref(NULL);
}
int edge = edge_length() >> mip_level;
return RenderSurface::Ref(new RenderSurfaceCB(service_locator(),
edge,
edge,
mip_level,
face,
this,
renderer_));
}
const Texture::RGBASwizzleIndices& TextureCUBECB::GetABGR32FSwizzleIndices() {
return g_cb_abgr32f_swizzle_indices;
}
} // namespace o3d
|