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// Copyright 2013 The Chromium 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 "components/viz/common/frame_sinks/copy_output_result.h"
#include "base/logging.h"
#include "third_party/libyuv/include/libyuv.h"
namespace viz {
CopyOutputResult::CopyOutputResult(Format format, const gfx::Rect& rect)
: format_(format), rect_(rect) {
DCHECK(format_ == Format::RGBA_BITMAP || format_ == Format::RGBA_TEXTURE ||
format_ == Format::I420_PLANES);
}
CopyOutputResult::~CopyOutputResult() = default;
bool CopyOutputResult::IsEmpty() const {
if (rect_.IsEmpty())
return true;
switch (format_) {
case Format::RGBA_BITMAP:
case Format::I420_PLANES:
return false;
case Format::RGBA_TEXTURE:
if (const TextureResult* result = GetTextureResult())
return result->mailbox.IsZero();
else
return true;
}
NOTREACHED();
return true;
}
const SkBitmap& CopyOutputResult::AsSkBitmap() const {
return cached_bitmap_;
}
const CopyOutputResult::TextureResult* CopyOutputResult::GetTextureResult()
const {
return nullptr;
}
std::unique_ptr<SingleReleaseCallback>
CopyOutputResult::TakeTextureOwnership() {
return nullptr;
}
bool CopyOutputResult::ReadI420Planes(uint8_t* y_out,
int y_out_stride,
uint8_t* u_out,
int u_out_stride,
uint8_t* v_out,
int v_out_stride) const {
const SkBitmap& bitmap = AsSkBitmap();
if (!bitmap.readyToDraw())
return false;
const uint8_t* pixels = static_cast<uint8_t*>(bitmap.getPixels());
// TODO(crbug/758057): The conversion below ignores color space completely.
if (bitmap.colorType() == kBGRA_8888_SkColorType) {
return 0 == libyuv::ARGBToI420(pixels, bitmap.rowBytes(), y_out,
y_out_stride, u_out, u_out_stride, v_out,
v_out_stride, bitmap.width(),
bitmap.height());
} else if (bitmap.colorType() == kRGBA_8888_SkColorType) {
return 0 == libyuv::ABGRToI420(pixels, bitmap.rowBytes(), y_out,
y_out_stride, u_out, u_out_stride, v_out,
v_out_stride, bitmap.width(),
bitmap.height());
}
// Other SkBitmap color types could be supported, but are currently never
// being used.
NOTIMPLEMENTED();
return false;
}
CopyOutputSkBitmapResult::CopyOutputSkBitmapResult(const gfx::Rect& rect,
const SkBitmap& bitmap)
: CopyOutputSkBitmapResult(Format::RGBA_BITMAP, rect, bitmap) {}
CopyOutputSkBitmapResult::CopyOutputSkBitmapResult(
CopyOutputResult::Format format,
const gfx::Rect& rect,
const SkBitmap& bitmap)
: CopyOutputResult(format, rect) {
DCHECK(format == Format::RGBA_BITMAP || format == Format::I420_PLANES);
if (!rect.IsEmpty()) {
// Hold a reference to the |bitmap|'s pixels, for AsSkBitmap().
*(cached_bitmap()) = bitmap;
}
}
const SkBitmap& CopyOutputSkBitmapResult::AsSkBitmap() const {
SkBitmap* const bitmap = cached_bitmap();
if (rect().IsEmpty())
return *bitmap; // Return "null" bitmap for empty result.
const SkImageInfo image_info = SkImageInfo::MakeN32Premul(
rect().width(), rect().height(), bitmap->refColorSpace());
if (bitmap->info() == image_info && bitmap->readyToDraw())
return *bitmap; // Return bitmap in expected format.
// The bitmap is not in the "native optimized" format. Convert it once for
// this and all future calls of this method.
SkBitmap replacement;
replacement.allocPixels(image_info);
replacement.eraseColor(SK_ColorBLACK);
SkPixmap src_pixmap;
if (bitmap->peekPixels(&src_pixmap)) {
// Note: writePixels() can fail, but then the replacement bitmap will be
// left with part/all solid black due to the eraseColor() call above.
replacement.writePixels(src_pixmap);
}
*bitmap = replacement;
return *bitmap;
}
CopyOutputSkBitmapResult::~CopyOutputSkBitmapResult() = default;
CopyOutputTextureResult::CopyOutputTextureResult(
const gfx::Rect& rect,
const gpu::Mailbox& mailbox,
const gpu::SyncToken& sync_token,
const gfx::ColorSpace& color_space,
std::unique_ptr<SingleReleaseCallback> release_callback)
: CopyOutputResult(Format::RGBA_TEXTURE, rect),
texture_result_(mailbox, sync_token, color_space),
release_callback_(std::move(release_callback)) {
DCHECK_EQ(rect.IsEmpty(), mailbox.IsZero());
DCHECK_EQ(!release_callback_, mailbox.IsZero());
}
CopyOutputTextureResult::~CopyOutputTextureResult() {
if (release_callback_)
release_callback_->Run(gpu::SyncToken(), false);
}
const CopyOutputResult::TextureResult*
CopyOutputTextureResult::GetTextureResult() const {
return &texture_result_;
}
std::unique_ptr<SingleReleaseCallback>
CopyOutputTextureResult::TakeTextureOwnership() {
texture_result_.mailbox = gpu::Mailbox();
texture_result_.sync_token = gpu::SyncToken();
texture_result_.color_space = gfx::ColorSpace();
return std::move(release_callback_);
}
} // namespace viz
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