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// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include "common/bit_field.h"
#include "common/common_types.h"
#include "video_core/pica.h"
#include "video_core/primitive_assembly.h"
#include "video_core/shader/shader.h"
namespace Pica {
/// Struct used to describe current Pica state
struct State {
void Reset();
/// Pica registers
Regs regs;
Shader::ShaderSetup vs;
Shader::ShaderSetup gs;
std::array<Math::Vec4<float24>, 16> vs_default_attributes;
struct {
union LutEntry {
// Used for raw access
u32 raw;
// LUT value, encoded as 12-bit fixed point, with 12 fraction bits
BitField<0, 12, u32> value; // 0.0.12 fixed point
// Used by HW for efficient interpolation, Citra does not use these
BitField<12, 12, s32> difference; // 1.0.11 fixed point
float ToFloat() {
return static_cast<float>(value) / 4095.f;
}
};
std::array<std::array<LutEntry, 256>, 24> luts;
} lighting;
struct {
union LutEntry {
// Used for raw access
u32 raw;
BitField<0, 13, s32> difference; // 1.1.11 fixed point
BitField<13, 11, u32> value; // 0.0.11 fixed point
};
std::array<LutEntry, 128> lut;
} fog;
/// Current Pica command list
struct {
const u32* head_ptr;
const u32* current_ptr;
u32 length;
} cmd_list;
/// Struct used to describe immediate mode rendering state
struct ImmediateModeState {
// Used to buffer partial vertices for immediate-mode rendering.
Shader::InputVertex input_vertex;
// Index of the next attribute to be loaded into `input_vertex`.
u32 current_attribute = 0;
} immediate;
// This is constructed with a dummy triangle topology
PrimitiveAssembler<Shader::OutputVertex> primitive_assembler;
};
extern State g_state; ///< Current Pica state
} // namespace
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