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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 "common/assert.h"
#include "common/bit_field.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "video_core/gpu.h"
#include "video_core/memory_manager.h"
namespace VideoCore {
class RasterizerInterface;
}
namespace Tegra::Engines {
#define FERMI2D_REG_INDEX(field_name) \
(offsetof(Tegra::Engines::Fermi2D::Regs, field_name) / sizeof(u32))
class Fermi2D final {
public:
explicit Fermi2D(VideoCore::RasterizerInterface& rasterizer, MemoryManager& memory_manager);
~Fermi2D() = default;
/// Write the value to the register identified by method.
void WriteReg(u32 method, u32 value);
struct Regs {
static constexpr std::size_t NUM_REGS = 0x258;
struct Surface {
RenderTargetFormat format;
BitField<0, 1, u32> linear;
union {
BitField<0, 4, u32> block_depth;
BitField<4, 4, u32> block_height;
BitField<8, 4, u32> block_width;
};
u32 depth;
u32 layer;
u32 pitch;
u32 width;
u32 height;
u32 address_high;
u32 address_low;
GPUVAddr Address() const {
return static_cast<GPUVAddr>((static_cast<GPUVAddr>(address_high) << 32) |
address_low);
}
u32 BlockHeight() const {
// The block height is stored in log2 format.
return 1 << block_height;
}
};
static_assert(sizeof(Surface) == 0x28, "Surface has incorrect size");
enum class Operation : u32 {
SrcCopyAnd = 0,
ROPAnd = 1,
Blend = 2,
SrcCopy = 3,
ROP = 4,
SrcCopyPremult = 5,
BlendPremult = 6,
};
union {
struct {
INSERT_PADDING_WORDS(0x80);
Surface dst;
INSERT_PADDING_WORDS(2);
Surface src;
INSERT_PADDING_WORDS(0x15);
Operation operation;
INSERT_PADDING_WORDS(0x9);
// TODO(Subv): This is only a guess.
u32 trigger;
INSERT_PADDING_WORDS(0x1A3);
};
std::array<u32, NUM_REGS> reg_array;
};
} regs{};
MemoryManager& memory_manager;
private:
VideoCore::RasterizerInterface& rasterizer;
/// Performs the copy from the source surface to the destination surface as configured in the
/// registers.
void HandleSurfaceCopy();
};
#define ASSERT_REG_POSITION(field_name, position) \
static_assert(offsetof(Fermi2D::Regs, field_name) == position * 4, \
"Field " #field_name " has invalid position")
ASSERT_REG_POSITION(dst, 0x80);
ASSERT_REG_POSITION(src, 0x8C);
ASSERT_REG_POSITION(operation, 0xAB);
ASSERT_REG_POSITION(trigger, 0xB5);
#undef ASSERT_REG_POSITION
} // namespace Tegra::Engines
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