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// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <cstddef>
#include <map>
#include <memory>
#include <tuple>
#include <unordered_set>
#include <utility>
#include <vector>
#include "common/common_types.h"
#include "video_core/rasterizer_cache.h"
#include "video_core/renderer_opengl/gl_resource_manager.h"
#include "video_core/renderer_opengl/gl_stream_buffer.h"
namespace OpenGL {
class RasterizerOpenGL;
class CachedBufferEntry final : public RasterizerCacheObject {
public:
explicit CachedBufferEntry(VAddr cpu_addr, u8* host_ptr);
VAddr GetCpuAddr() const override {
return cpu_addr;
}
std::size_t GetSizeInBytes() const override {
return size;
}
u8* GetWritableHostPtr() const {
return host_ptr;
}
std::size_t GetSize() const {
return size;
}
std::size_t GetCapacity() const {
return capacity;
}
bool IsInternalized() const {
return is_internal;
}
GLuint GetBuffer() const {
return buffer.handle;
}
void SetSize(std::size_t new_size) {
size = new_size;
}
void SetInternalState(bool is_internal_) {
is_internal = is_internal_;
}
void SetCapacity(OGLBuffer&& new_buffer, std::size_t new_capacity) {
capacity = new_capacity;
buffer = std::move(new_buffer);
}
private:
u8* host_ptr{};
VAddr cpu_addr{};
std::size_t size{};
std::size_t capacity{};
bool is_internal{};
OGLBuffer buffer;
};
class OGLBufferCache final : public RasterizerCache<std::shared_ptr<CachedBufferEntry>> {
using BufferInfo = std::pair<GLuint, GLintptr>;
public:
explicit OGLBufferCache(RasterizerOpenGL& rasterizer, std::size_t size);
~OGLBufferCache();
void Unregister(const std::shared_ptr<CachedBufferEntry>& entry) override;
/// Uploads data from a guest GPU address. Returns the OpenGL buffer where it's located and its
/// offset.
BufferInfo UploadMemory(GPUVAddr gpu_addr, std::size_t size, std::size_t alignment = 4,
bool internalize = false, bool is_written = false);
/// Uploads from a host memory. Returns the OpenGL buffer where it's located and its offset.
BufferInfo UploadHostMemory(const void* raw_pointer, std::size_t size,
std::size_t alignment = 4);
bool Map(std::size_t max_size);
void Unmap();
protected:
// We do not have to flush this cache as things in it are never modified by us.
void FlushObjectInner(const std::shared_ptr<CachedBufferEntry>& entry) override;
private:
BufferInfo StreamBufferUpload(const void* raw_pointer, std::size_t size, std::size_t alignment);
BufferInfo FixedBufferUpload(GPUVAddr gpu_addr, u8* host_ptr, std::size_t size,
bool internalize, bool is_written);
void GrowBuffer(std::shared_ptr<CachedBufferEntry>& entry, std::size_t new_size);
std::shared_ptr<CachedBufferEntry> GetUncachedBuffer(VAddr cpu_addr, u8* host_ptr);
std::shared_ptr<CachedBufferEntry> TryGetReservedBuffer(u8* host_ptr);
void ReserveBuffer(std::shared_ptr<CachedBufferEntry> entry);
void AlignBuffer(std::size_t alignment);
u8* buffer_ptr = nullptr;
GLintptr buffer_offset = 0;
GLintptr buffer_offset_base = 0;
OGLStreamBuffer stream_buffer;
std::unordered_set<CacheAddr> internalized_entries;
std::unordered_map<CacheAddr, std::vector<std::shared_ptr<CachedBufferEntry>>> buffer_reserve;
};
} // namespace OpenGL
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