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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/user_manager/user_image/user_image.h"
#include <memory>
#include "base/logging.h"
#include "base/trace_event/trace_event.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/chromeos/resources/grit/ui_chromeos_resources.h"
#include "ui/gfx/codec/jpeg_codec.h"
#include "ui/gfx/codec/png_codec.h"
#include "ui/gfx/geometry/size.h"
namespace user_manager {
namespace {
// Default quality for encoding user images.
const int kDefaultEncodingQuality = 90;
} // namespace
// static
scoped_refptr<base::RefCountedBytes> UserImage::Encode(
const SkBitmap& bitmap,
ImageFormat image_format) {
TRACE_EVENT2("oobe", "UserImage::Encode",
"width", bitmap.width(), "height", bitmap.height());
if (image_format == FORMAT_JPEG) {
std::optional<std::vector<uint8_t>> output =
gfx::JPEGCodec::Encode(bitmap, kDefaultEncodingQuality);
if (output) {
return base::MakeRefCounted<base::RefCountedBytes>(
std::move(output.value()));
}
} else if (image_format == FORMAT_PNG) {
auto* bitmap_data =
reinterpret_cast<unsigned char*>(bitmap.getAddr32(0, 0));
std::optional<std::vector<uint8_t>> output = gfx::PNGCodec::Encode(
bitmap_data, gfx::PNGCodec::FORMAT_SkBitmap,
gfx::Size(bitmap.width(), bitmap.height()),
bitmap.width() * bitmap.bytesPerPixel(),
/*discard_transparency=*/false, std::vector<gfx::PNGCodec::Comment>());
if (output) {
return base::MakeRefCounted<base::RefCountedBytes>(
std::move(output).value());
}
} else {
LOG(FATAL) << "Invalid image format: " << image_format;
}
return nullptr;
}
// static
std::unique_ptr<UserImage> UserImage::CreateAndEncode(
const gfx::ImageSkia& image,
ImageFormat image_format) {
if (image.isNull())
return std::make_unique<UserImage>();
scoped_refptr<base::RefCountedBytes> image_bytes = Encode(*image.bitmap(),
image_format);
if (image_bytes) {
std::unique_ptr<UserImage> result(
new UserImage(image, image_bytes, image_format));
result->MarkAsSafe();
return result;
}
return std::make_unique<UserImage>(image);
}
// static
std::unique_ptr<UserImage> UserImage::CreateStub() {
return std::make_unique<user_manager::UserImage>(
*ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
IDR_LOGIN_DEFAULT_USER));
}
// static
UserImage::ImageFormat UserImage::ChooseImageFormat(const SkBitmap& bitmap) {
return SkBitmap::ComputeIsOpaque(bitmap) ? FORMAT_JPEG : FORMAT_PNG;
}
UserImage::UserImage() {
}
UserImage::UserImage(const gfx::ImageSkia& image)
: image_(image) {
}
UserImage::UserImage(const gfx::ImageSkia& image,
scoped_refptr<base::RefCountedBytes> image_bytes,
ImageFormat image_format)
: image_(image),
image_bytes_(image_bytes),
image_format_(image_format) {
}
UserImage::~UserImage() = default;
void UserImage::MarkAsSafe() {
is_safe_format_ = true;
}
} // namespace user_manager
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