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Support scale factor to buffer APIs

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This commit is contained in:
Kevin Sawicki 2017-03-06 16:19:16 -08:00
parent e4ead6d018
commit 82a81bb26e
3 changed files with 79 additions and 34 deletions
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93
atom/common/api/atom_api_native_image.cc
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@ -230,28 +230,46 @@ HICON NativeImage::GetHICON(int size) {
}
#endif
v8::Local<v8::Value> NativeImage::ToPNG(v8::Isolate* isolate) {
scoped_refptr<base::RefCountedMemory> png = image_.As1xPNGBytes();
if (IsEmpty() || png->size() > 0) {
const char* data = reinterpret_cast<const char*>(png->front());
const size_t length = static_cast<size_t>(png->size());
return node::Buffer::Copy(isolate, data, length).ToLocalChecked();
} else {
std::vector<unsigned char> encoded;
gfx::PNGCodec::EncodeBGRASkBitmap(image_.AsBitmap(), false, &encoded);
const char* data = reinterpret_cast<char*>(encoded.data());
return node::Buffer::Copy(isolate, data, encoded.size()).ToLocalChecked();
v8::Local<v8::Value> NativeImage::ToPNG(mate::Arguments* args) {
float scale_factor = 1.0f;
mate::Dictionary options;
if (args->GetNext(&options))
options.Get("scaleFactor", &scale_factor);
if (scale_factor == 1.0f) {
// Use raw 1x PNG bytes when available
scoped_refptr<base::RefCountedMemory> png = image_.As1xPNGBytes();
if (png->size() > 0) {
const char* data = reinterpret_cast<const char*>(png->front());
size_t size = png->size();
return node::Buffer::Copy(args->isolate(), data, size).ToLocalChecked();
}
}
const SkBitmap bitmap =
image_.AsImageSkia().GetRepresentation(scale_factor).sk_bitmap();
std::unique_ptr<std::vector<unsigned char>> encoded(
new std::vector<unsigned char>());
gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, false, encoded.get());
const char* data = reinterpret_cast<char*>(encoded->data());
size_t size = encoded->size();
return node::Buffer::Copy(args->isolate(), data, size).ToLocalChecked();
}
v8::Local<v8::Value> NativeImage::ToBitmap(v8::Isolate* isolate) {
if (IsEmpty()) return node::Buffer::New(isolate, 0).ToLocalChecked();
v8::Local<v8::Value> NativeImage::ToBitmap(mate::Arguments* args) {
float scale_factor = 1.0f;
mate::Dictionary options;
if (args->GetNext(&options))
options.Get("scaleFactor", &scale_factor);
const SkBitmap* bitmap = image_.ToSkBitmap();
SkPixelRef* ref = bitmap->pixelRef();
return node::Buffer::Copy(isolate,
const SkBitmap bitmap =
image_.AsImageSkia().GetRepresentation(scale_factor).sk_bitmap();
SkPixelRef* ref = bitmap.pixelRef();
if (!ref)
return node::Buffer::New(args->isolate(), 0).ToLocalChecked();
return node::Buffer::Copy(args->isolate(),
reinterpret_cast<const char*>(ref->pixels()),
bitmap->getSafeSize()).ToLocalChecked();
bitmap.getSafeSize()).ToLocalChecked();
}
v8::Local<v8::Value> NativeImage::ToJPEG(v8::Isolate* isolate, int quality) {
@ -260,25 +278,40 @@ v8::Local<v8::Value> NativeImage::ToJPEG(v8::Isolate* isolate, int quality) {
return node::Buffer::Copy(
isolate,
reinterpret_cast<const char*>(&output.front()),
static_cast<size_t>(output.size())).ToLocalChecked();
output.size()).ToLocalChecked();
}
std::string NativeImage::ToDataURL() {
scoped_refptr<base::RefCountedMemory> png = image_.As1xPNGBytes();
if (IsEmpty() || png->size() > 0)
return webui::GetPngDataUrl(png->front(), png->size());
else
return webui::GetBitmapDataUrl(image_.AsBitmap());
std::string NativeImage::ToDataURL(mate::Arguments* args) {
float scale_factor = 1.0f;
mate::Dictionary options;
if (args->GetNext(&options))
options.Get("scaleFactor", &scale_factor);
if (scale_factor == 1.0f) {
// Use raw 1x PNG bytes when available
scoped_refptr<base::RefCountedMemory> png = image_.As1xPNGBytes();
if (png->size() > 0)
return webui::GetPngDataUrl(png->front(), png->size());
}
return webui::GetBitmapDataUrl(
image_.AsImageSkia().GetRepresentation(scale_factor).sk_bitmap());
}
v8::Local<v8::Value> NativeImage::GetBitmap(v8::Isolate* isolate) {
if (IsEmpty()) return node::Buffer::New(isolate, 0).ToLocalChecked();
v8::Local<v8::Value> NativeImage::GetBitmap(mate::Arguments* args) {
float scale_factor = 1.0f;
mate::Dictionary options;
if (args->GetNext(&options))
options.Get("scaleFactor", &scale_factor);
const SkBitmap* bitmap = image_.ToSkBitmap();
SkPixelRef* ref = bitmap->pixelRef();
return node::Buffer::New(isolate,
const SkBitmap bitmap =
image_.AsImageSkia().GetRepresentation(scale_factor).sk_bitmap();
SkPixelRef* ref = bitmap.pixelRef();
if (!ref)
return node::Buffer::New(args->isolate(), 0).ToLocalChecked();
return node::Buffer::New(args->isolate(),
reinterpret_cast<char*>(ref->pixels()),
bitmap->getSafeSize(),
bitmap.getSafeSize(),
&Noop,
nullptr).ToLocalChecked();
}