// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <unordered_map>
#include <vector>
#include "common/bit_field.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "video_core/memory_manager.h"
namespace Tegra {
namespace Engines {
class Maxwell3D final {
public:
explicit Maxwell3D(MemoryManager& memory_manager);
~Maxwell3D() = default;
/// Write the value to the register identified by method.
void WriteReg(u32 method, u32 value);
/**
* Handles a method call to this engine.
* @param method Method to call
* @param parameters Arguments to the method call
*/
void CallMethod(u32 method, const std::vector<u32>& parameters);
/// Register structure of the Maxwell3D engine.
/// TODO(Subv): This structure will need to be made bigger as more registers are discovered.
struct Regs {
static constexpr size_t NUM_REGS = 0xE36;
enum class QueryMode : u32 {
Write = 0,
Sync = 1,
};
union {
struct {
INSERT_PADDING_WORDS(0x585);
struct {
u32 vertex_end_gl;
u32 vertex_begin_gl;
} draw;
INSERT_PADDING_WORDS(0x139);
struct {
u32 query_address_high;
u32 query_address_low;
u32 query_sequence;
union {
u32 raw;
BitField<0, 2, QueryMode> mode;
BitField<4, 1, u32> fence;
BitField<12, 4, u32> unit;
} query_get;
GPUVAddr QueryAddress() const {
return static_cast<GPUVAddr>(
(static_cast<GPUVAddr>(query_address_high) << 32) | query_address_low);
}
} query;
INSERT_PADDING_WORDS(0x772);
};
std::array<u32, NUM_REGS> reg_array;
};
} regs{};
static_assert(sizeof(Regs) == Regs::NUM_REGS * sizeof(u32), "Maxwell3D Regs has wrong size");
private:
MemoryManager& memory_manager;
/// Handles a write to the QUERY_GET register.
void ProcessQueryGet();
/// Handles a write to the VERTEX_END_GL register, triggering a draw.
void DrawArrays();
/// Method call handlers
void PrepareShader(const std::vector<u32>& parameters);
struct MethodInfo {
const char* name;
u32 arguments;
void (Maxwell3D::*handler)(const std::vector<u32>& parameters);
};
static const std::unordered_map<u32, MethodInfo> method_handlers;
};
#define ASSERT_REG_POSITION(field_name, position) \
static_assert(offsetof(Maxwell3D::Regs, field_name) == position * 4, \
"Field " #field_name " has invalid position")
ASSERT_REG_POSITION(query, 0x6C0);
#undef ASSERT_REG_POSITION
} // namespace Engines
} // namespace Tegra
