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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <unordered_map>
#include "common/assert.h"
#include "common/common_types.h"
#include "video_core/gpu.h"
#include "video_core/texture_cache/surface_params.h"
#include "video_core/texture_cache/surface_view.h"
namespace VideoCommon {
class SurfaceBaseImpl {
public:
void LoadBuffer();
void FlushBuffer();
GPUVAddr GetGpuAddr() const {
ASSERT(is_registered);
return gpu_addr;
}
VAddr GetCpuAddr() const {
ASSERT(is_registered);
return cpu_addr;
}
u8* GetHostPtr() const {
ASSERT(is_registered);
return host_ptr;
}
CacheAddr GetCacheAddr() const {
ASSERT(is_registered);
return cache_addr;
}
const SurfaceParams& GetSurfaceParams() const {
return params;
}
void Register(GPUVAddr gpu_addr_, VAddr cpu_addr_, u8* host_ptr_) {
ASSERT(!is_registered);
is_registered = true;
gpu_addr = gpu_addr_;
cpu_addr = cpu_addr_;
host_ptr = host_ptr_;
cache_addr = ToCacheAddr(host_ptr_);
DecorateSurfaceName();
}
void Unregister() {
ASSERT(is_registered);
is_registered = false;
}
bool IsRegistered() const {
return is_registered;
}
std::size_t GetSizeInBytes() const {
return params.GetGuestSizeInBytes();
}
u8* GetStagingBufferLevelData(u32 level) {
return staging_buffer.data() + params.GetHostMipmapLevelOffset(level);
}
protected:
explicit SurfaceBaseImpl(const SurfaceParams& params);
~SurfaceBaseImpl(); // non-virtual is intended
virtual void DecorateSurfaceName() = 0;
const SurfaceParams params;
private:
GPUVAddr gpu_addr{};
VAddr cpu_addr{};
u8* host_ptr{};
CacheAddr cache_addr{};
bool is_registered{};
std::vector<u8> staging_buffer;
};
template <typename TTextureCache, typename TView>
class SurfaceBase : public SurfaceBaseImpl {
public:
virtual void UploadTexture() = 0;
virtual void DownloadTexture() = 0;
TView* TryGetView(GPUVAddr view_addr, const SurfaceParams& view_params) {
if (view_addr < GetGpuAddr() || !params.IsFamiliar(view_params)) {
// It can't be a view if it's in a prior address.
return {};
}
const auto relative_offset{static_cast<u64>(view_addr - GetGpuAddr())};
const auto it{view_offset_map.find(relative_offset)};
if (it == view_offset_map.end()) {
// Couldn't find an aligned view.
return {};
}
const auto [layer, level] = it->second;
if (!params.IsViewValid(view_params, layer, level)) {
return {};
}
return GetView(layer, view_params.GetNumLayers(), level, view_params.GetNumLevels());
}
void MarkAsModified(bool is_modified_) {
is_modified = is_modified_;
if (is_modified_) {
modification_tick = texture_cache.Tick();
}
}
TView* GetView(GPUVAddr view_addr, const SurfaceParams& view_params) {
TView* view{TryGetView(view_addr, view_params)};
ASSERT(view != nullptr);
return view;
}
bool IsModified() const {
return is_modified;
}
u64 GetModificationTick() const {
return modification_tick;
}
protected:
explicit SurfaceBase(TTextureCache& texture_cache, const SurfaceParams& params)
: SurfaceBaseImpl{params}, texture_cache{texture_cache},
view_offset_map{params.CreateViewOffsetMap()} {}
~SurfaceBase() = default;
virtual std::unique_ptr<TView> CreateView(const ViewKey& view_key) = 0;
private:
TView* GetView(u32 base_layer, u32 num_layers, u32 base_level, u32 num_levels) {
const ViewKey key{base_layer, num_layers, base_level, num_levels};
const auto [entry, is_cache_miss] = views.try_emplace(key);
auto& view{entry->second};
if (is_cache_miss) {
view = CreateView(key);
}
return view.get();
}
TTextureCache& texture_cache;
const std::map<u64, std::pair<u32, u32>> view_offset_map;
std::unordered_map<ViewKey, std::unique_ptr<TView>> views;
bool is_modified{};
u64 modification_tick{};
};
} // namespace VideoCommon
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