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
|
/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Benchmark.h"
#include "Resources.h"
#include "SkCanvas.h"
#include "SkData.h"
#include "SkDecodingImageGenerator.h"
#include "SkImageDecoder.h"
#include "SkOSFile.h"
#include "SkPixelRef.h"
#ifndef SK_IGNORE_ETC1_SUPPORT
#include "etc1.h"
// This takes the etc1 data pointed to by orig, and copies it `factor` times in each
// dimension. The return value is the new data or NULL on error.
static etc1_byte* create_expanded_etc1_bitmap(const uint8_t* orig, int factor) {
SkASSERT(orig);
SkASSERT(factor > 1);
const etc1_byte* origData = reinterpret_cast<const etc1_byte*>(orig);
if (!etc1_pkm_is_valid(orig)) {
return NULL;
}
etc1_uint32 origWidth = etc1_pkm_get_width(origData);
etc1_uint32 origHeight = etc1_pkm_get_height(origData);
// The width and height must be aligned along block boundaries
static const etc1_uint32 kETC1BlockWidth = 4;
static const etc1_uint32 kETC1BlockHeight = 4;
if ((origWidth % kETC1BlockWidth) != 0 ||
(origHeight % kETC1BlockHeight) != 0) {
return NULL;
}
// The picture must be at least as large as a block.
if (origWidth <= kETC1BlockWidth || origHeight <= kETC1BlockHeight) {
return NULL;
}
etc1_uint32 newWidth = origWidth * factor;
etc1_uint32 newHeight = origHeight * factor;
etc1_uint32 newDataSz = etc1_get_encoded_data_size(newWidth, newHeight);
etc1_byte* newData = reinterpret_cast<etc1_byte *>(
sk_malloc_throw(newDataSz + ETC_PKM_HEADER_SIZE));
etc1_pkm_format_header(newData, newWidth, newHeight);
etc1_byte* copyInto = newData;
copyInto += ETC_PKM_HEADER_SIZE;
origData += ETC_PKM_HEADER_SIZE;
etc1_uint32 origBlocksX = (origWidth >> 2);
etc1_uint32 origBlocksY = (origHeight >> 2);
etc1_uint32 newBlocksY = (newHeight >> 2);
etc1_uint32 origRowSzInBytes = origBlocksX * ETC1_ENCODED_BLOCK_SIZE;
for (etc1_uint32 j = 0; j < newBlocksY; ++j) {
const etc1_byte* rowStart = origData + ((j % origBlocksY) * origRowSzInBytes);
for(etc1_uint32 i = 0; i < newWidth; i += origWidth) {
memcpy(copyInto, rowStart, origRowSzInBytes);
copyInto += origRowSzInBytes;
}
}
return newData;
}
// This is the base class for all of the benches in this file. In general
// the ETC1 benches should all be working on the same data. Due to the
// simplicity of the PKM file, that data is the 128x128 mandrill etc1
// compressed texture repeated by some factor (currently 8 -> 1024x1024)
class ETCBitmapBenchBase : public Benchmark {
public:
ETCBitmapBenchBase() : fPKMData(loadPKM()) {
if (NULL == fPKMData) {
SkDebugf("Could not load PKM data!");
}
}
protected:
SkAutoDataUnref fPKMData;
private:
SkData* loadPKM() {
SkString pkmFilename = GetResourcePath("mandrill_128.pkm");
// Expand the data
SkAutoDataUnref fileData(SkData::NewFromFileName(pkmFilename.c_str()));
if (NULL == fileData) {
SkDebugf("Could not open the file. Did you forget to set the resourcePath?\n");
return NULL;
}
const etc1_uint32 kExpansionFactor = 8;
etc1_byte* expandedETC1 =
create_expanded_etc1_bitmap(fileData->bytes(), kExpansionFactor);
if (NULL == expandedETC1) {
SkDebugf("Error expanding ETC1 data by factor of %d\n", kExpansionFactor);
return NULL;
}
etc1_uint32 width = etc1_pkm_get_width(expandedETC1);
etc1_uint32 height = etc1_pkm_get_width(expandedETC1);
etc1_uint32 dataSz = ETC_PKM_HEADER_SIZE + etc1_get_encoded_data_size(width, height);
return SkData::NewFromMalloc(expandedETC1, dataSz);
}
typedef Benchmark INHERITED;
};
// This is the rendering benchmark. Prior to rendering the data, create a
// bitmap using the etc1 data.
class ETCBitmapBench : public ETCBitmapBenchBase {
public:
ETCBitmapBench(bool decompress, Backend backend)
: fDecompress(decompress), fBackend(backend) { }
virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
return backend == this->fBackend;
}
protected:
virtual const char* onGetName() SK_OVERRIDE {
if (kGPU_Backend == this->fBackend) {
if (this->fDecompress) {
return "etc1bitmap_render_gpu_decompressed";
} else {
return "etc1bitmap_render_gpu_compressed";
}
} else {
SkASSERT(kRaster_Backend == this->fBackend);
if (this->fDecompress) {
return "etc1bitmap_render_raster_decompressed";
} else {
return "etc1bitmap_render_raster_compressed";
}
}
}
virtual void onPreDraw() SK_OVERRIDE {
if (NULL == fPKMData) {
SkDebugf("Failed to load PKM data!\n");
return;
}
// Install pixel ref
if (!SkInstallDiscardablePixelRef(
SkDecodingImageGenerator::Create(
fPKMData, SkDecodingImageGenerator::Options()), &(this->fBitmap))) {
SkDebugf("Could not install discardable pixel ref.\n");
return;
}
// Decompress it if necessary
if (this->fDecompress) {
this->fBitmap.lockPixels();
}
}
virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
for (int i = 0; i < loops; ++i) {
canvas->drawBitmap(this->fBitmap, 0, 0, NULL);
}
}
protected:
SkBitmap fBitmap;
bool decompress() const { return fDecompress; }
Backend backend() const { return fBackend; }
private:
const bool fDecompress;
const Backend fBackend;
typedef ETCBitmapBenchBase INHERITED;
};
// This benchmark is identical to the previous benchmark, but it explicitly forces
// an upload to the GPU before each draw call. We do this by notifying the bitmap
// that the pixels have changed (even though they haven't).
class ETCBitmapUploadBench : public ETCBitmapBench {
public:
ETCBitmapUploadBench(bool decompress, Backend backend)
: ETCBitmapBench(decompress, backend) { }
protected:
virtual const char* onGetName() SK_OVERRIDE {
if (kGPU_Backend == this->backend()) {
if (this->decompress()) {
return "etc1bitmap_upload_gpu_decompressed";
} else {
return "etc1bitmap_upload_gpu_compressed";
}
} else {
SkASSERT(kRaster_Backend == this->backend());
if (this->decompress()) {
return "etc1bitmap_upload_raster_decompressed";
} else {
return "etc1bitmap_upload_raster_compressed";
}
}
}
virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
SkPixelRef* pr = fBitmap.pixelRef();
for (int i = 0; i < loops; ++i) {
if (pr) {
pr->notifyPixelsChanged();
}
canvas->drawBitmap(this->fBitmap, 0, 0, NULL);
}
}
private:
typedef ETCBitmapBench INHERITED;
};
DEF_BENCH(return new ETCBitmapBench(false, Benchmark::kRaster_Backend);)
DEF_BENCH(return new ETCBitmapBench(true, Benchmark::kRaster_Backend);)
DEF_BENCH(return new ETCBitmapBench(false, Benchmark::kGPU_Backend);)
DEF_BENCH(return new ETCBitmapBench(true, Benchmark::kGPU_Backend);)
DEF_BENCH(return new ETCBitmapUploadBench(false, Benchmark::kRaster_Backend);)
DEF_BENCH(return new ETCBitmapUploadBench(true, Benchmark::kRaster_Backend);)
DEF_BENCH(return new ETCBitmapUploadBench(false, Benchmark::kGPU_Backend);)
DEF_BENCH(return new ETCBitmapUploadBench(true, Benchmark::kGPU_Backend);)
#endif // SK_IGNORE_ETC1_SUPPORT
|
