flutter_flutter/shell/platform/embedder/embedder_external_texture_gl.cc
zljj0818 f9eeee310c
Poor video scaling quality #53080 (#18814)
Use bilinear instead of nearest filter to draw surface texture

Related Issues:
https://github.com/flutter/flutter/issues/53080

Tests:
- TextureLayerTest
2020-06-17 11:14:05 -07:00

58 lines
1.8 KiB
C++

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "flutter/shell/platform/embedder/embedder_external_texture_gl.h"
#include "flutter/fml/logging.h"
namespace flutter {
EmbedderExternalTextureGL::EmbedderExternalTextureGL(
int64_t texture_identifier,
const ExternalTextureCallback& callback)
: Texture(texture_identifier), external_texture_callback_(callback) {
FML_DCHECK(external_texture_callback_);
}
EmbedderExternalTextureGL::~EmbedderExternalTextureGL() = default;
// |flutter::Texture|
void EmbedderExternalTextureGL::Paint(SkCanvas& canvas,
const SkRect& bounds,
bool freeze,
GrContext* context,
SkFilterQuality filter_quality) {
if (auto image = external_texture_callback_(
Id(), //
canvas.getGrContext(), //
SkISize::Make(bounds.width(), bounds.height()) //
)) {
last_image_ = image;
}
if (last_image_) {
SkPaint paint;
paint.setFilterQuality(filter_quality);
if (bounds != SkRect::Make(last_image_->bounds())) {
canvas.drawImageRect(last_image_, bounds, &paint);
} else {
canvas.drawImage(last_image_, bounds.x(), bounds.y(), &paint);
}
}
}
// |flutter::Texture|
void EmbedderExternalTextureGL::OnGrContextCreated() {}
// |flutter::Texture|
void EmbedderExternalTextureGL::OnGrContextDestroyed() {}
// |flutter::Texture|
void EmbedderExternalTextureGL::MarkNewFrameAvailable() {}
// |flutter::Texture|
void EmbedderExternalTextureGL::OnTextureUnregistered() {}
} // namespace flutter