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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/gfx/image/image_skia_rep_default.h"
#include "base/check_op.h"
#include "base/notreached.h"
#include "cc/paint/display_item_list.h"
#include "cc/paint/record_paint_canvas.h"
#include "cc/paint/skia_paint_canvas.h"
#include "skia/ext/legacy_display_globals.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "ui/gfx/color_palette.h"
namespace gfx {
ImageSkiaRep::ImageSkiaRep()
: type_(ImageRepType::kImageTypeDrawable), scale_(0.0f) {}
ImageSkiaRep::ImageSkiaRep(const gfx::Size& size, float scale)
: type_(ImageRepType::kImageTypeBitmap), scale_(scale) {
bitmap_.allocN32Pixels(static_cast<int>(size.width() * this->scale()),
static_cast<int>(size.height() * this->scale()));
bitmap_.eraseColor(kPlaceholderColor);
bitmap_.setImmutable();
pixel_size_.SetSize(bitmap_.width(), bitmap_.height());
paint_image_ = cc::PaintImage::CreateFromBitmap(bitmap_);
}
ImageSkiaRep::ImageSkiaRep(const SkBitmap& src, float scale)
: type_(ImageRepType::kImageTypeBitmap),
pixel_size_(gfx::Size(src.width(), src.height())),
bitmap_(src),
scale_(scale) {
CHECK_EQ(bitmap_.colorType(), kN32_SkColorType);
DCHECK(!bitmap_.drawsNothing());
bitmap_.setImmutable();
paint_image_ = cc::PaintImage::CreateFromBitmap(src);
}
ImageSkiaRep::ImageSkiaRep(cc::PaintRecord paint_record,
const gfx::Size& pixel_size,
float scale)
: paint_record_(std::move(paint_record)),
type_(ImageRepType::kImageTypeDrawable),
pixel_size_(pixel_size),
scale_(scale) {
DCHECK(!pixel_size.IsEmpty());
}
ImageSkiaRep::ImageSkiaRep(const ImageSkiaRep& other)
: paint_image_(other.paint_image_),
paint_record_(other.paint_record_),
type_(other.type_),
pixel_size_(other.pixel_size_),
bitmap_(other.bitmap_),
scale_(other.scale_) {}
ImageSkiaRep::~ImageSkiaRep() {}
int ImageSkiaRep::GetWidth() const {
return static_cast<int>(pixel_width() / scale());
}
int ImageSkiaRep::GetHeight() const {
return static_cast<int>(pixel_height() / scale());
}
cc::PaintRecord ImageSkiaRep::GetPaintRecord() const {
DCHECK(type_ == ImageRepType::kImageTypeBitmap || !is_null());
// If this image rep is of |kImageTypeDrawable| then it must have a paint
// record.
if (type_ == ImageRepType::kImageTypeDrawable || paint_record_)
return *paint_record_;
// If this ImageRep was generated using a bitmap then it may not have a
// paint record generated for it yet. We would have to generate it now.
cc::RecordPaintCanvas record_canvas;
record_canvas.drawImage(paint_image(), 0, 0);
return record_canvas.ReleaseAsRecord();
}
const SkBitmap& ImageSkiaRep::GetBitmap() const {
if (type_ == ImageRepType::kImageTypeDrawable && bitmap_.isNull() &&
paint_record_) {
// TODO(malaykeshav): Add a NOTREACHED() once all instances of this call
// path is removed from the code base.
// A request for bitmap was made even though this ImageSkiaRep is sourced
// form a drawable(e.g. CanvasImageSource). This should not be happenning
// as it forces a rasterization on the UI thread.
bitmap_.allocN32Pixels(pixel_width(), pixel_height());
bitmap_.eraseColor(SK_ColorTRANSPARENT);
SkCanvas canvas(bitmap_, skia::LegacyDisplayGlobals::GetSkSurfaceProps());
paint_record_->Playback(&canvas);
bitmap_.setImmutable();
}
return bitmap_;
}
} // namespace gfx
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