blob: 8e435763595428c7e7249badd71fec0d619b413f [file] [log] [blame] [edit]
// 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/fml/logging.h"
#include "include/core/SkImage.h"
#include "include/core/SkPicture.h"
#include "include/core/SkSerialProcs.h"
#include "include/core/SkStream.h"
#include "include/core/SkTypeface.h"
namespace flutter {
sk_sp<SkData> SerializeTypefaceWithoutData(SkTypeface* typeface, void* ctx) {
return SkData::MakeEmpty();
}
sk_sp<SkData> SerializeTypefaceWithData(SkTypeface* typeface, void* ctx) {
return typeface->serialize(SkTypeface::SerializeBehavior::kDoIncludeData);
}
sk_sp<SkTypeface> DeserializeTypefaceWithoutData(const void* data,
size_t length,
void* ctx) {
return SkTypeface::MakeDefault();
}
struct ImageMetaData {
int32_t width;
int32_t height;
uint32_t color_type;
uint32_t alpha_type;
bool has_color_space;
} __attribute__((packed));
sk_sp<SkData> SerializeImageWithoutData(SkImage* image, void* ctx) {
auto info = image->imageInfo();
SkDynamicMemoryWStream stream;
ImageMetaData metadata = {info.width(), info.height(),
static_cast<uint32_t>(info.colorType()),
static_cast<uint32_t>(info.alphaType()),
static_cast<bool>(info.colorSpace())};
stream.write(&metadata, sizeof(ImageMetaData));
if (info.colorSpace()) {
auto color_space_data = info.colorSpace()->serialize();
FML_CHECK(color_space_data);
SkMemoryStream color_space_stream(color_space_data);
stream.writeStream(&color_space_stream, color_space_data->size());
}
return stream.detachAsData();
};
sk_sp<SkImage> DeserializeImageWithoutData(const void* data,
size_t length,
void* ctx) {
FML_CHECK(length >= sizeof(ImageMetaData));
auto metadata = static_cast<const ImageMetaData*>(data);
sk_sp<SkColorSpace> color_space = nullptr;
if (metadata->has_color_space) {
color_space = SkColorSpace::Deserialize(
static_cast<const uint8_t*>(data) + sizeof(ImageMetaData),
length - sizeof(ImageMetaData));
}
auto image_size = SkISize::Make(metadata->width, metadata->height);
auto info = SkImageInfo::Make(
image_size, static_cast<SkColorType>(metadata->color_type),
static_cast<SkAlphaType>(metadata->alpha_type), color_space);
sk_sp<SkData> image_data =
SkData::MakeUninitialized(image_size.width() * image_size.height() * 4);
memset(image_data->writable_data(), 0x0f, image_data->size());
sk_sp<SkImage> image =
SkImage::MakeRasterData(info, image_data, image_size.width() * 4);
return image;
};
} // namespace flutter