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// Copyright (c) 2017 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 <stddef.h>
#include <stdint.h>
#include "base/atomic_sequence_num.h"
#include "base/containers/span.h"
#include "cc/paint/transfer_cache_entry.h"
#include "third_party/skia/include/core/SkRefCnt.h"
class GrContext;
class SkColorSpace;
class SkImage;
struct SkImageInfo;
class SkPixmap;
namespace cc {
static constexpr uint32_t kInvalidImageTransferCacheEntryId =
// Client/ServiceImageTransferCacheEntry implement a transfer cache entry
// for transferring image data. On the client side, this is a CPU SkPixmap,
// on the service side the image is uploaded and is a GPU SkImage.
class CC_PAINT_EXPORT ClientImageTransferCacheEntry
: public ClientTransferCacheEntryBase<TransferCacheEntryType::kImage> {
explicit ClientImageTransferCacheEntry(const SkPixmap* pixmap,
const SkColorSpace* target_color_space,
bool needs_mips);
~ClientImageTransferCacheEntry() final;
uint32_t Id() const final;
// ClientTransferCacheEntry implementation:
uint32_t SerializedSize() const final;
bool Serialize(base::span<uint8_t> data) const final;
uint32_t id_;
const SkPixmap* const pixmap_;
const SkColorSpace* const target_color_space_;
const bool needs_mips_;
uint32_t size_ = 0;
static base::AtomicSequenceNumber s_next_id_;
class CC_PAINT_EXPORT ServiceImageTransferCacheEntry
: public ServiceTransferCacheEntryBase<TransferCacheEntryType::kImage> {
~ServiceImageTransferCacheEntry() final;
ServiceImageTransferCacheEntry(ServiceImageTransferCacheEntry&& other);
ServiceImageTransferCacheEntry& operator=(
ServiceImageTransferCacheEntry&& other);
// Populates this entry using |decoded_image| described by |row_bytes| and
// |image_info|. The image is uploaded to the GPU if its dimensions are both
// at most |context_|->maxTextureSize().
bool BuildFromDecodedData(GrContext* context,
base::span<const uint8_t> decoded_image,
size_t row_bytes,
const SkImageInfo& image_info,
bool needs_mips,
sk_sp<SkColorSpace> target_color_space);
// ServiceTransferCacheEntry implementation:
size_t CachedSize() const final;
bool Deserialize(GrContext* context, base::span<const uint8_t> data) final;
bool fits_on_gpu() const { return fits_on_gpu_; }
const sk_sp<SkImage>& image() const { return image_; }
// Ensures the cached image has mips.
void EnsureMips();
bool MakeSkImage(const SkPixmap& pixmap,
uint32_t width,
uint32_t height,
sk_sp<SkColorSpace> target_color_space);
GrContext* context_ = nullptr;
sk_sp<SkImage> image_;
bool has_mips_ = false;
size_t size_ = 0;
bool fits_on_gpu_ = false;
} // namespace cc