mirror of
https://github.com/yuzu-emu/yuzu.git
synced 2024-07-04 23:31:19 +01:00
pica: Add pica_types module and move float24 definition.
This commit is contained in:
parent
69e2453649
commit
38c7b20475
3 changed files with 127 additions and 112 deletions
|
@ -33,6 +33,7 @@ set(HEADERS
|
|||
command_processor.h
|
||||
gpu_debugger.h
|
||||
pica.h
|
||||
pica_types.h
|
||||
primitive_assembly.h
|
||||
rasterizer.h
|
||||
rasterizer_interface.h
|
||||
|
|
|
@ -16,6 +16,8 @@
|
|||
#include "common/vector_math.h"
|
||||
#include "common/logging/log.h"
|
||||
|
||||
#include "pica_types.h"
|
||||
|
||||
namespace Pica {
|
||||
|
||||
// Returns index corresponding to the Regs member labeled by field_name
|
||||
|
@ -1026,118 +1028,6 @@ static_assert(sizeof(Regs::ShaderConfig) == 0x30 * sizeof(u32), "ShaderConfig st
|
|||
static_assert(sizeof(Regs) <= 0x300 * sizeof(u32), "Register set structure larger than it should be");
|
||||
static_assert(sizeof(Regs) >= 0x300 * sizeof(u32), "Register set structure smaller than it should be");
|
||||
|
||||
struct float24 {
|
||||
static float24 FromFloat32(float val) {
|
||||
float24 ret;
|
||||
ret.value = val;
|
||||
return ret;
|
||||
}
|
||||
|
||||
// 16 bit mantissa, 7 bit exponent, 1 bit sign
|
||||
// TODO: No idea if this works as intended
|
||||
static float24 FromRawFloat24(u32 hex) {
|
||||
float24 ret;
|
||||
if ((hex & 0xFFFFFF) == 0) {
|
||||
ret.value = 0;
|
||||
} else {
|
||||
u32 mantissa = hex & 0xFFFF;
|
||||
u32 exponent = (hex >> 16) & 0x7F;
|
||||
u32 sign = hex >> 23;
|
||||
ret.value = std::pow(2.0f, (float)exponent-63.0f) * (1.0f + mantissa * std::pow(2.0f, -16.f));
|
||||
if (sign)
|
||||
ret.value = -ret.value;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static float24 Zero() {
|
||||
return FromFloat32(0.f);
|
||||
}
|
||||
|
||||
// Not recommended for anything but logging
|
||||
float ToFloat32() const {
|
||||
return value;
|
||||
}
|
||||
|
||||
float24 operator * (const float24& flt) const {
|
||||
if ((this->value == 0.f && !std::isnan(flt.value)) ||
|
||||
(flt.value == 0.f && !std::isnan(this->value)))
|
||||
// PICA gives 0 instead of NaN when multiplying by inf
|
||||
return Zero();
|
||||
return float24::FromFloat32(ToFloat32() * flt.ToFloat32());
|
||||
}
|
||||
|
||||
float24 operator / (const float24& flt) const {
|
||||
return float24::FromFloat32(ToFloat32() / flt.ToFloat32());
|
||||
}
|
||||
|
||||
float24 operator + (const float24& flt) const {
|
||||
return float24::FromFloat32(ToFloat32() + flt.ToFloat32());
|
||||
}
|
||||
|
||||
float24 operator - (const float24& flt) const {
|
||||
return float24::FromFloat32(ToFloat32() - flt.ToFloat32());
|
||||
}
|
||||
|
||||
float24& operator *= (const float24& flt) {
|
||||
if ((this->value == 0.f && !std::isnan(flt.value)) ||
|
||||
(flt.value == 0.f && !std::isnan(this->value)))
|
||||
// PICA gives 0 instead of NaN when multiplying by inf
|
||||
*this = Zero();
|
||||
else value *= flt.ToFloat32();
|
||||
return *this;
|
||||
}
|
||||
|
||||
float24& operator /= (const float24& flt) {
|
||||
value /= flt.ToFloat32();
|
||||
return *this;
|
||||
}
|
||||
|
||||
float24& operator += (const float24& flt) {
|
||||
value += flt.ToFloat32();
|
||||
return *this;
|
||||
}
|
||||
|
||||
float24& operator -= (const float24& flt) {
|
||||
value -= flt.ToFloat32();
|
||||
return *this;
|
||||
}
|
||||
|
||||
float24 operator - () const {
|
||||
return float24::FromFloat32(-ToFloat32());
|
||||
}
|
||||
|
||||
bool operator < (const float24& flt) const {
|
||||
return ToFloat32() < flt.ToFloat32();
|
||||
}
|
||||
|
||||
bool operator > (const float24& flt) const {
|
||||
return ToFloat32() > flt.ToFloat32();
|
||||
}
|
||||
|
||||
bool operator >= (const float24& flt) const {
|
||||
return ToFloat32() >= flt.ToFloat32();
|
||||
}
|
||||
|
||||
bool operator <= (const float24& flt) const {
|
||||
return ToFloat32() <= flt.ToFloat32();
|
||||
}
|
||||
|
||||
bool operator == (const float24& flt) const {
|
||||
return ToFloat32() == flt.ToFloat32();
|
||||
}
|
||||
|
||||
bool operator != (const float24& flt) const {
|
||||
return ToFloat32() != flt.ToFloat32();
|
||||
}
|
||||
|
||||
private:
|
||||
// Stored as a regular float, merely for convenience
|
||||
// TODO: Perform proper arithmetic on this!
|
||||
float value;
|
||||
};
|
||||
static_assert(sizeof(float24) == sizeof(float), "Shader JIT assumes float24 is implemented as a 32-bit float");
|
||||
|
||||
/// Struct used to describe current Pica state
|
||||
struct State {
|
||||
/// Pica registers
|
||||
|
|
124
src/video_core/pica_types.h
Normal file
124
src/video_core/pica_types.h
Normal file
|
@ -0,0 +1,124 @@
|
|||
// Copyright 2015 Citra Emulator Project
|
||||
// Licensed under GPLv2 or any later version
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#pragma once
|
||||
|
||||
#include "common/common_types.h"
|
||||
|
||||
namespace Pica {
|
||||
|
||||
struct float24 {
|
||||
static float24 FromFloat32(float val) {
|
||||
float24 ret;
|
||||
ret.value = val;
|
||||
return ret;
|
||||
}
|
||||
|
||||
// 16 bit mantissa, 7 bit exponent, 1 bit sign
|
||||
// TODO: No idea if this works as intended
|
||||
static float24 FromRawFloat24(u32 hex) {
|
||||
float24 ret;
|
||||
if ((hex & 0xFFFFFF) == 0) {
|
||||
ret.value = 0;
|
||||
} else {
|
||||
u32 mantissa = hex & 0xFFFF;
|
||||
u32 exponent = (hex >> 16) & 0x7F;
|
||||
u32 sign = hex >> 23;
|
||||
ret.value = std::pow(2.0f, (float)exponent-63.0f) * (1.0f + mantissa * std::pow(2.0f, -16.f));
|
||||
if (sign)
|
||||
ret.value = -ret.value;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static float24 Zero() {
|
||||
return FromFloat32(0.f);
|
||||
}
|
||||
|
||||
// Not recommended for anything but logging
|
||||
float ToFloat32() const {
|
||||
return value;
|
||||
}
|
||||
|
||||
float24 operator * (const float24& flt) const {
|
||||
if ((this->value == 0.f && !std::isnan(flt.value)) ||
|
||||
(flt.value == 0.f && !std::isnan(this->value)))
|
||||
// PICA gives 0 instead of NaN when multiplying by inf
|
||||
return Zero();
|
||||
return float24::FromFloat32(ToFloat32() * flt.ToFloat32());
|
||||
}
|
||||
|
||||
float24 operator / (const float24& flt) const {
|
||||
return float24::FromFloat32(ToFloat32() / flt.ToFloat32());
|
||||
}
|
||||
|
||||
float24 operator + (const float24& flt) const {
|
||||
return float24::FromFloat32(ToFloat32() + flt.ToFloat32());
|
||||
}
|
||||
|
||||
float24 operator - (const float24& flt) const {
|
||||
return float24::FromFloat32(ToFloat32() - flt.ToFloat32());
|
||||
}
|
||||
|
||||
float24& operator *= (const float24& flt) {
|
||||
if ((this->value == 0.f && !std::isnan(flt.value)) ||
|
||||
(flt.value == 0.f && !std::isnan(this->value)))
|
||||
// PICA gives 0 instead of NaN when multiplying by inf
|
||||
*this = Zero();
|
||||
else value *= flt.ToFloat32();
|
||||
return *this;
|
||||
}
|
||||
|
||||
float24& operator /= (const float24& flt) {
|
||||
value /= flt.ToFloat32();
|
||||
return *this;
|
||||
}
|
||||
|
||||
float24& operator += (const float24& flt) {
|
||||
value += flt.ToFloat32();
|
||||
return *this;
|
||||
}
|
||||
|
||||
float24& operator -= (const float24& flt) {
|
||||
value -= flt.ToFloat32();
|
||||
return *this;
|
||||
}
|
||||
|
||||
float24 operator - () const {
|
||||
return float24::FromFloat32(-ToFloat32());
|
||||
}
|
||||
|
||||
bool operator < (const float24& flt) const {
|
||||
return ToFloat32() < flt.ToFloat32();
|
||||
}
|
||||
|
||||
bool operator > (const float24& flt) const {
|
||||
return ToFloat32() > flt.ToFloat32();
|
||||
}
|
||||
|
||||
bool operator >= (const float24& flt) const {
|
||||
return ToFloat32() >= flt.ToFloat32();
|
||||
}
|
||||
|
||||
bool operator <= (const float24& flt) const {
|
||||
return ToFloat32() <= flt.ToFloat32();
|
||||
}
|
||||
|
||||
bool operator == (const float24& flt) const {
|
||||
return ToFloat32() == flt.ToFloat32();
|
||||
}
|
||||
|
||||
bool operator != (const float24& flt) const {
|
||||
return ToFloat32() != flt.ToFloat32();
|
||||
}
|
||||
|
||||
private:
|
||||
// Stored as a regular float, merely for convenience
|
||||
// TODO: Perform proper arithmetic on this!
|
||||
float value;
|
||||
};
|
||||
|
||||
static_assert(sizeof(float24) == sizeof(float), "Shader JIT assumes float24 is implemented as a 32-bit float");
|
||||
|
||||
} // namespace Pica
|
Loading…
Reference in a new issue