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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 <array>
#include <memory>
#include "common/common_types.h"
#include "video_core/buffer_cache/buffer_cache.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/renderer_opengl/gl_resource_manager.h"
#include "video_core/renderer_opengl/gl_stream_buffer.h"
namespace Core {
class System;
}
namespace OpenGL {
class Device;
class OGLStreamBuffer;
class RasterizerOpenGL;
class StateTracker;
class Buffer : public VideoCommon::BufferBlock {
public:
explicit Buffer(const Device& device_, VAddr cpu_addr_, std::size_t size_);
~Buffer();
void Upload(std::size_t offset, std::size_t data_size, const u8* data);
void Download(std::size_t offset, std::size_t data_size, u8* data);
void CopyFrom(const Buffer& src, std::size_t src_offset, std::size_t dst_offset,
std::size_t copy_size);
GLuint Handle() const noexcept {
return gl_buffer.handle;
}
u64 Address() const noexcept {
return gpu_address;
}
private:
OGLBuffer gl_buffer;
OGLBuffer read_buffer;
u64 gpu_address = 0;
};
using GenericBufferCache = VideoCommon::BufferCache<Buffer, GLuint, OGLStreamBuffer>;
class OGLBufferCache final : public GenericBufferCache {
public:
explicit OGLBufferCache(VideoCore::RasterizerInterface& rasterizer,
Tegra::MemoryManager& gpu_memory, Core::Memory::Memory& cpu_memory,
const Device& device, OGLStreamBuffer& stream_buffer,
StateTracker& state_tracker);
~OGLBufferCache();
BufferInfo GetEmptyBuffer(std::size_t) override;
void Acquire() noexcept {
cbuf_cursor = 0;
}
protected:
std::shared_ptr<Buffer> CreateBlock(VAddr cpu_addr, std::size_t size) override;
BufferInfo ConstBufferUpload(const void* raw_pointer, std::size_t size) override;
private:
static constexpr std::size_t NUM_CBUFS = Tegra::Engines::Maxwell3D::Regs::MaxConstBuffers *
Tegra::Engines::Maxwell3D::Regs::MaxShaderProgram;
const Device& device;
std::size_t cbuf_cursor = 0;
std::array<GLuint, NUM_CBUFS> cbufs{};
};
} // namespace OpenGL
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