citra/src/video_core/pica_state.h
2016-03-02 22:16:38 -05:00

60 lines
1.5 KiB
C++

// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#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 {
/// Pica registers
Regs regs;
Shader::ShaderSetup vs;
Shader::ShaderSetup gs;
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;
// Used by HW for efficient interpolation, Citra does not use these
BitField<12, 12, u32> difference;
float ToFloat() {
return static_cast<float>(value) / 4095.f;
}
};
std::array<std::array<LutEntry, 256>, 24> luts;
} lighting;
/// 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 {
Shader::InputVertex input;
// This is constructed with a dummy triangle topology
PrimitiveAssembler<Shader::OutputVertex> primitive_assembler;
int attribute_id = 0;
ImmediateModeState() : primitive_assembler(Regs::TriangleTopology::List) {}
} immediate;
};
extern State g_state; ///< Current Pica state
} // namespace