1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "content/renderer/skia_benchmarking_extension.h"
7 #include "base/base64.h"
8 #include "base/time/time.h"
9 #include "base/values.h"
10 #include "cc/base/math_util.h"
11 #include "cc/resources/picture.h"
12 #include "content/public/renderer/v8_value_converter.h"
13 #include "content/renderer/render_thread_impl.h"
14 #include "gin/arguments.h"
15 #include "gin/handle.h"
16 #include "gin/object_template_builder.h"
17 #include "skia/ext/benchmarking_canvas.h"
18 #include "third_party/WebKit/public/platform/WebArrayBuffer.h"
19 #include "third_party/WebKit/public/web/WebArrayBufferConverter.h"
20 #include "third_party/WebKit/public/web/WebFrame.h"
21 #include "third_party/WebKit/public/web/WebKit.h"
22 #include "third_party/skia/include/core/SkBitmapDevice.h"
23 #include "third_party/skia/include/core/SkCanvas.h"
24 #include "third_party/skia/include/core/SkColorPriv.h"
25 #include "third_party/skia/include/core/SkGraphics.h"
26 #include "third_party/skia/include/core/SkStream.h"
27 #include "third_party/skia/src/utils/debugger/SkDebugCanvas.h"
28 #include "third_party/skia/src/utils/debugger/SkDrawCommand.h"
29 #include "ui/gfx/rect_conversions.h"
30 #include "ui/gfx/skia_util.h"
31 #include "v8/include/v8.h"
38 scoped_ptr<base::Value> ParsePictureArg(v8::Isolate* isolate,
39 v8::Handle<v8::Value> arg) {
40 scoped_ptr<content::V8ValueConverter> converter(
41 content::V8ValueConverter::create());
42 return scoped_ptr<base::Value>(
43 converter->FromV8Value(arg, isolate->GetCurrentContext()));
46 scoped_refptr<cc::Picture> ParsePictureStr(v8::Isolate* isolate,
47 v8::Handle<v8::Value> arg) {
48 scoped_ptr<base::Value> picture_value = ParsePictureArg(isolate, arg);
51 return cc::Picture::CreateFromSkpValue(picture_value.get());
54 scoped_refptr<cc::Picture> ParsePictureHash(v8::Isolate* isolate,
55 v8::Handle<v8::Value> arg) {
56 scoped_ptr<base::Value> picture_value = ParsePictureArg(isolate, arg);
59 return cc::Picture::CreateFromValue(picture_value.get());
64 gin::WrapperInfo SkiaBenchmarking::kWrapperInfo = {gin::kEmbedderNativeGin};
67 void SkiaBenchmarking::Install(blink::WebFrame* frame) {
68 v8::Isolate* isolate = blink::mainThreadIsolate();
69 v8::HandleScope handle_scope(isolate);
70 v8::Handle<v8::Context> context = frame->mainWorldScriptContext();
71 if (context.IsEmpty())
74 v8::Context::Scope context_scope(context);
76 gin::Handle<SkiaBenchmarking> controller =
77 gin::CreateHandle(isolate, new SkiaBenchmarking());
78 v8::Handle<v8::Object> global = context->Global();
79 v8::Handle<v8::Object> chrome =
80 global->Get(gin::StringToV8(isolate, "chrome"))->ToObject();
81 if (chrome.IsEmpty()) {
82 chrome = v8::Object::New(isolate);
83 global->Set(gin::StringToV8(isolate, "chrome"), chrome);
85 chrome->Set(gin::StringToV8(isolate, "skiaBenchmarking"), controller.ToV8());
89 void SkiaBenchmarking::Initialize() {
90 DCHECK(RenderThreadImpl::current());
91 // FIXME: remove this after Skia updates SkGraphics::Init() to be
92 // thread-safe and idempotent.
93 static bool skia_initialized = false;
94 if (!skia_initialized) {
95 LOG(WARNING) << "Enabling unsafe Skia benchmarking extension.";
97 skia_initialized = true;
101 SkiaBenchmarking::SkiaBenchmarking() {
105 SkiaBenchmarking::~SkiaBenchmarking() {}
107 gin::ObjectTemplateBuilder SkiaBenchmarking::GetObjectTemplateBuilder(
108 v8::Isolate* isolate) {
109 return gin::Wrappable<SkiaBenchmarking>::GetObjectTemplateBuilder(isolate)
110 .SetMethod("rasterize", &SkiaBenchmarking::Rasterize)
111 .SetMethod("getOps", &SkiaBenchmarking::GetOps)
112 .SetMethod("getOpTimings", &SkiaBenchmarking::GetOpTimings)
113 .SetMethod("getInfo", &SkiaBenchmarking::GetInfo);
116 void SkiaBenchmarking::Rasterize(gin::Arguments* args) {
117 v8::Isolate* isolate = args->isolate();
118 if (args->PeekNext().IsEmpty())
120 v8::Handle<v8::Value> picture_handle;
121 args->GetNext(&picture_handle);
122 scoped_refptr<cc::Picture> picture =
123 ParsePictureHash(isolate, picture_handle);
128 gfx::Rect clip_rect(picture->LayerRect());
130 bool overdraw = false;
132 if (!args->PeekNext().IsEmpty()) {
133 v8::Handle<v8::Value> params;
134 args->GetNext(¶ms);
135 scoped_ptr<content::V8ValueConverter> converter(
136 content::V8ValueConverter::create());
137 scoped_ptr<base::Value> params_value(
138 converter->FromV8Value(params, isolate->GetCurrentContext()));
140 const base::DictionaryValue* params_dict = NULL;
141 if (params_value.get() && params_value->GetAsDictionary(¶ms_dict)) {
142 params_dict->GetDouble("scale", &scale);
143 params_dict->GetInteger("stop", &stop_index);
144 params_dict->GetBoolean("overdraw", &overdraw);
146 const base::Value* clip_value = NULL;
147 if (params_dict->Get("clip", &clip_value))
148 cc::MathUtil::FromValue(clip_value, &clip_rect);
152 gfx::RectF clip(clip_rect);
153 clip.Intersect(picture->LayerRect());
155 gfx::Rect snapped_clip = gfx::ToEnclosingRect(clip);
158 if (!bitmap.setConfig(SkBitmap::kARGB_8888_Config, snapped_clip.width(),
159 snapped_clip.height()))
161 if (!bitmap.allocPixels())
163 bitmap.eraseARGB(0, 0, 0, 0);
165 SkCanvas canvas(bitmap);
166 canvas.translate(SkFloatToScalar(-clip.x()), SkFloatToScalar(-clip.y()));
167 canvas.clipRect(gfx::RectToSkRect(snapped_clip));
168 canvas.scale(scale, scale);
169 canvas.translate(picture->LayerRect().x(), picture->LayerRect().y());
171 // First, build a debug canvas for the given picture.
172 SkDebugCanvas debug_canvas(picture->LayerRect().width(),
173 picture->LayerRect().height());
174 picture->Replay(&debug_canvas);
176 // Raster the requested command subset into the bitmap-backed canvas.
177 int last_index = debug_canvas.getSize() - 1;
178 if (last_index >= 0) {
179 debug_canvas.setOverdrawViz(overdraw);
182 stop_index < 0 ? last_index : std::min(last_index, stop_index));
185 blink::WebArrayBuffer buffer =
186 blink::WebArrayBuffer::create(bitmap.getSize(), 1);
187 uint32* packed_pixels = reinterpret_cast<uint32*>(bitmap.getPixels());
188 uint8* buffer_pixels = reinterpret_cast<uint8*>(buffer.data());
189 // Swizzle from native Skia format to RGBA as we copy out.
190 for (size_t i = 0; i < bitmap.getSize(); i += 4) {
191 uint32 c = packed_pixels[i >> 2];
192 buffer_pixels[i] = SkGetPackedR32(c);
193 buffer_pixels[i + 1] = SkGetPackedG32(c);
194 buffer_pixels[i + 2] = SkGetPackedB32(c);
195 buffer_pixels[i + 3] = SkGetPackedA32(c);
198 v8::Handle<v8::Object> result = v8::Object::New(isolate);
199 result->Set(v8::String::NewFromUtf8(isolate, "width"),
200 v8::Number::New(isolate, snapped_clip.width()));
201 result->Set(v8::String::NewFromUtf8(isolate, "height"),
202 v8::Number::New(isolate, snapped_clip.height()));
203 result->Set(v8::String::NewFromUtf8(isolate, "data"),
204 blink::WebArrayBufferConverter::toV8Value(&buffer));
206 args->Return(result);
209 void SkiaBenchmarking::GetOps(gin::Arguments* args) {
210 v8::Isolate* isolate = args->isolate();
211 if (args->PeekNext().IsEmpty())
213 v8::Handle<v8::Value> picture_handle;
214 args->GetNext(&picture_handle);
215 scoped_refptr<cc::Picture> picture =
216 ParsePictureHash(isolate, picture_handle);
220 gfx::Rect bounds = picture->LayerRect();
221 SkDebugCanvas canvas(bounds.width(), bounds.height());
222 picture->Replay(&canvas);
224 v8::Handle<v8::Array> result = v8::Array::New(isolate, canvas.getSize());
225 for (int i = 0; i < canvas.getSize(); ++i) {
226 DrawType cmd_type = canvas.getDrawCommandAt(i)->getType();
227 v8::Handle<v8::Object> cmd = v8::Object::New(isolate);
228 cmd->Set(v8::String::NewFromUtf8(isolate, "cmd_type"),
229 v8::Integer::New(isolate, cmd_type));
230 cmd->Set(v8::String::NewFromUtf8(isolate, "cmd_string"),
231 v8::String::NewFromUtf8(
232 isolate, SkDrawCommand::GetCommandString(cmd_type)));
234 SkTDArray<SkString*>* info = canvas.getCommandInfo(i);
237 v8::Local<v8::Array> v8_info = v8::Array::New(isolate, info->count());
238 for (int j = 0; j < info->count(); ++j) {
239 const SkString* info_str = (*info)[j];
241 v8_info->Set(j, v8::String::NewFromUtf8(isolate, info_str->c_str()));
244 cmd->Set(v8::String::NewFromUtf8(isolate, "info"), v8_info);
249 args->Return(result.As<v8::Object>());
252 void SkiaBenchmarking::GetOpTimings(gin::Arguments* args) {
253 v8::Isolate* isolate = args->isolate();
254 if (args->PeekNext().IsEmpty())
256 v8::Handle<v8::Value> picture_handle;
257 args->GetNext(&picture_handle);
258 scoped_refptr<cc::Picture> picture =
259 ParsePictureHash(isolate, picture_handle);
263 gfx::Rect bounds = picture->LayerRect();
265 // Measure the total time by drawing straight into a bitmap-backed canvas.
266 skia::RefPtr<SkBaseDevice> device = skia::AdoptRef(SkNEW_ARGS(
268 (SkBitmap::kARGB_8888_Config, bounds.width(), bounds.height())));
269 SkCanvas bitmap_canvas(device.get());
270 bitmap_canvas.clear(SK_ColorTRANSPARENT);
271 base::TimeTicks t0 = base::TimeTicks::HighResNow();
272 picture->Replay(&bitmap_canvas);
273 base::TimeDelta total_time = base::TimeTicks::HighResNow() - t0;
275 // Gather per-op timing info by drawing into a BenchmarkingCanvas.
276 skia::BenchmarkingCanvas benchmarking_canvas(bounds.width(), bounds.height());
277 picture->Replay(&benchmarking_canvas);
279 v8::Local<v8::Array> op_times =
280 v8::Array::New(isolate, benchmarking_canvas.CommandCount());
281 for (size_t i = 0; i < benchmarking_canvas.CommandCount(); ++i)
282 op_times->Set(i, v8::Number::New(isolate, benchmarking_canvas.GetTime(i)));
284 v8::Handle<v8::Object> result = v8::Object::New(isolate);
285 result->Set(v8::String::NewFromUtf8(isolate, "total_time"),
286 v8::Number::New(isolate, total_time.InMillisecondsF()));
287 result->Set(v8::String::NewFromUtf8(isolate, "cmd_times"), op_times);
289 args->Return(result);
292 void SkiaBenchmarking::GetInfo(gin::Arguments* args) {
293 v8::Isolate* isolate = args->isolate();
294 if (args->PeekNext().IsEmpty())
296 v8::Handle<v8::Value> picture_handle;
297 args->GetNext(&picture_handle);
298 scoped_refptr<cc::Picture> picture =
299 ParsePictureStr(isolate, picture_handle);
303 v8::Handle<v8::Object> result = v8::Object::New(isolate);
304 result->Set(v8::String::NewFromUtf8(isolate, "width"),
305 v8::Number::New(isolate, picture->LayerRect().width()));
306 result->Set(v8::String::NewFromUtf8(isolate, "height"),
307 v8::Number::New(isolate, picture->LayerRect().height()));
309 args->Return(result);
312 } // namespace content