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path: root/src/video_core/engines/engine_upload.h
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// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later

#pragma once

#include <span>

#include "common/bit_field.h"
#include "common/common_types.h"
#include "common/scratch_buffer.h"

namespace Tegra {
class MemoryManager;
}

namespace VideoCore {
class RasterizerInterface;
}

namespace Tegra::Engines::Upload {

struct Registers {
    u32 line_length_in;
    u32 line_count;

    struct {
        u32 address_high;
        u32 address_low;
        u32 pitch;
        union {
            BitField<0, 4, u32> block_width;
            BitField<4, 4, u32> block_height;
            BitField<8, 4, u32> block_depth;
        };
        u32 width;
        u32 height;
        u32 depth;
        u32 layer;
        u32 x;
        u32 y;

        GPUVAddr Address() const {
            return (GPUVAddr{address_high} << 32) | GPUVAddr{address_low};
        }

        u32 BlockWidth() const {
            return block_width.Value();
        }

        u32 BlockHeight() const {
            return block_height.Value();
        }

        u32 BlockDepth() const {
            return block_depth.Value();
        }
    } dest;
};

class State {
public:
    explicit State(MemoryManager& memory_manager_, Registers& regs_);
    ~State();

    void ProcessExec(bool is_linear_);
    void ProcessData(u32 data, bool is_last_call);
    void ProcessData(const u32* data, size_t num_data);

    /// Binds a rasterizer to this engine.
    void BindRasterizer(VideoCore::RasterizerInterface* rasterizer);

private:
    void ProcessData(std::span<const u8> read_buffer);

    u32 write_offset = 0;
    u32 copy_size = 0;
    Common::ScratchBuffer<u8> inner_buffer;
    Common::ScratchBuffer<u8> tmp_buffer;
    bool is_linear = false;
    Registers& regs;
    MemoryManager& memory_manager;
    VideoCore::RasterizerInterface* rasterizer = nullptr;
};

} // namespace Tegra::Engines::Upload