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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chrome/renderer/extensions/set_icon_natives.h" | 5 #include "chrome/renderer/extensions/set_icon_natives.h" |
| 6 | 6 |
| 7 #include <limits> | 7 #include <limits> |
| 8 | 8 |
| 9 #include "base/memory/scoped_ptr.h" | 9 #include "base/memory/scoped_ptr.h" |
| 10 #include "chrome/common/render_messages.h" | 10 #include "chrome/common/render_messages.h" |
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| 38 Value** bitmap_value) { | 38 Value** bitmap_value) { |
| 39 v8::Isolate* isolate = context()->v8_context()->GetIsolate(); | 39 v8::Isolate* isolate = context()->v8_context()->GetIsolate(); |
| 40 v8::Local<v8::Object> data = | 40 v8::Local<v8::Object> data = |
| 41 image_data->Get(v8::String::NewFromUtf8(isolate, "data"))->ToObject(); | 41 image_data->Get(v8::String::NewFromUtf8(isolate, "data"))->ToObject(); |
| 42 int width = | 42 int width = |
| 43 image_data->Get(v8::String::NewFromUtf8(isolate, "width"))->Int32Value(); | 43 image_data->Get(v8::String::NewFromUtf8(isolate, "width"))->Int32Value(); |
| 44 int height = | 44 int height = |
| 45 image_data->Get(v8::String::NewFromUtf8(isolate, "height"))->Int32Value(); | 45 image_data->Get(v8::String::NewFromUtf8(isolate, "height"))->Int32Value(); |
| 46 | 46 |
| 47 if (width <= 0 || height <= 0) { | 47 if (width <= 0 || height <= 0) { |
| 48 v8::ThrowException(v8::Exception::Error( | 48 isolate->ThrowException(v8::Exception::Error( |
| 49 v8::String::NewFromUtf8(isolate, kInvalidDimensions))); | 49 v8::String::NewFromUtf8(isolate, kInvalidDimensions))); |
| 50 return false; | 50 return false; |
| 51 } | 51 } |
| 52 | 52 |
| 53 // We need to be able to safely check |data_length| == 4 * width * height | 53 // We need to be able to safely check |data_length| == 4 * width * height |
| 54 // without overflowing below. | 54 // without overflowing below. |
| 55 int max_width = (std::numeric_limits<int>::max() / 4) / height; | 55 int max_width = (std::numeric_limits<int>::max() / 4) / height; |
| 56 if (width > max_width) { | 56 if (width > max_width) { |
| 57 v8::ThrowException(v8::Exception::Error( | 57 isolate->ThrowException(v8::Exception::Error( |
| 58 v8::String::NewFromUtf8(isolate, kInvalidDimensions))); | 58 v8::String::NewFromUtf8(isolate, kInvalidDimensions))); |
| 59 return false; | 59 return false; |
| 60 } | 60 } |
| 61 | 61 |
| 62 int data_length = | 62 int data_length = |
| 63 data->Get(v8::String::NewFromUtf8(isolate, "length"))->Int32Value(); | 63 data->Get(v8::String::NewFromUtf8(isolate, "length"))->Int32Value(); |
| 64 if (data_length != 4 * width * height) { | 64 if (data_length != 4 * width * height) { |
| 65 v8::ThrowException( | 65 isolate->ThrowException( |
| 66 v8::Exception::Error(v8::String::NewFromUtf8(isolate, kInvalidData))); | 66 v8::Exception::Error(v8::String::NewFromUtf8(isolate, kInvalidData))); |
| 67 return false; | 67 return false; |
| 68 } | 68 } |
| 69 | 69 |
| 70 SkBitmap bitmap; | 70 SkBitmap bitmap; |
| 71 bitmap.setConfig(SkBitmap::kARGB_8888_Config, width, height); | 71 bitmap.setConfig(SkBitmap::kARGB_8888_Config, width, height); |
| 72 if (!bitmap.allocPixels()) { | 72 if (!bitmap.allocPixels()) { |
| 73 v8::ThrowException( | 73 isolate->ThrowException( |
| 74 v8::Exception::Error(v8::String::NewFromUtf8(isolate, kNoMemory))); | 74 v8::Exception::Error(v8::String::NewFromUtf8(isolate, kNoMemory))); |
| 75 return false; | 75 return false; |
| 76 } | 76 } |
| 77 bitmap.eraseARGB(0, 0, 0, 0); | 77 bitmap.eraseARGB(0, 0, 0, 0); |
| 78 | 78 |
| 79 uint32_t* pixels = bitmap.getAddr32(0, 0); | 79 uint32_t* pixels = bitmap.getAddr32(0, 0); |
| 80 for (int t = 0; t < width*height; t++) { | 80 for (int t = 0; t < width*height; t++) { |
| 81 // |data| is RGBA, pixels is ARGB. | 81 // |data| is RGBA, pixels is ARGB. |
| 82 pixels[t] = SkPreMultiplyColor( | 82 pixels[t] = SkPreMultiplyColor( |
| 83 ((data->Get(v8::Integer::New(4*t + 3))->Int32Value() & 0xFF) << 24) | | 83 ((data->Get(v8::Integer::New(4*t + 3))->Int32Value() & 0xFF) << 24) | |
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| 137 | 137 |
| 138 if (details->Has(v8::String::NewFromUtf8(args.GetIsolate(), "tabId"))) { | 138 if (details->Has(v8::String::NewFromUtf8(args.GetIsolate(), "tabId"))) { |
| 139 dict->SetInteger("tabId", | 139 dict->SetInteger("tabId", |
| 140 details->Get(v8::String::NewFromUtf8( | 140 details->Get(v8::String::NewFromUtf8( |
| 141 args.GetIsolate(), "tabId"))->Int32Value()); | 141 args.GetIsolate(), "tabId"))->Int32Value()); |
| 142 } | 142 } |
| 143 | 143 |
| 144 ListValue list_value; | 144 ListValue list_value; |
| 145 list_value.Append(dict); | 145 list_value.Append(dict); |
| 146 | 146 |
| 147 std::string name = *v8::String::AsciiValue(args[0]); | 147 std::string name = *v8::String::Utf8Value(args[0]); |
| 148 int request_id = args[2]->Int32Value(); | 148 int request_id = args[2]->Int32Value(); |
| 149 bool has_callback = args[3]->BooleanValue(); | 149 bool has_callback = args[3]->BooleanValue(); |
| 150 bool for_io_thread = args[4]->BooleanValue(); | 150 bool for_io_thread = args[4]->BooleanValue(); |
| 151 | 151 |
| 152 request_sender_->StartRequest(context(), | 152 request_sender_->StartRequest(context(), |
| 153 name, | 153 name, |
| 154 request_id, | 154 request_id, |
| 155 has_callback, | 155 has_callback, |
| 156 for_io_thread, | 156 for_io_thread, |
| 157 &list_value); | 157 &list_value); |
| 158 } | 158 } |
| 159 | 159 |
| 160 } // namespace extensions | 160 } // namespace extensions |
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