diff options
Diffstat (limited to 'src/video_core')
| -rw-r--r-- | src/video_core/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | src/video_core/pica.h | 114 | ||||
| -rw-r--r-- | src/video_core/pica_types.h | 124 | 
3 files changed, 127 insertions, 112 deletions
| diff --git a/src/video_core/CMakeLists.txt b/src/video_core/CMakeLists.txt index c3d7294d5..4b5d298f3 100644 --- a/src/video_core/CMakeLists.txt +++ b/src/video_core/CMakeLists.txt @@ -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 diff --git a/src/video_core/pica.h b/src/video_core/pica.h index 2f1b2dec4..b8db7869a 100644 --- a/src/video_core/pica.h +++ b/src/video_core/pica.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 diff --git a/src/video_core/pica_types.h b/src/video_core/pica_types.h new file mode 100644 index 000000000..de798aa81 --- /dev/null +++ b/src/video_core/pica_types.h @@ -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 | 
