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Merge pull request #535 from bunnei/color-modifiers
Implement color/alpha modifiers
This commit is contained in:
commit
1576a318f2
3 changed files with 103 additions and 73 deletions
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@ -457,27 +457,41 @@ public:
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const T& b() const { return z; }
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const T& a() const { return w; }
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// swizzlers - create a subvector of specific components
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// Swizzlers - Create a subvector of specific components
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// e.g. Vec2 uv() { return Vec2(x,y); }
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// _DEFINE_SWIZZLER2 defines a single such function, DEFINE_SWIZZLER2 defines all of them for all component names (x<->r) and permutations (xy<->yx)
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// _DEFINE_SWIZZLER2 defines a single such function
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// DEFINE_SWIZZLER2_COMP1 defines one-component functions for all component names (x<->r)
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// DEFINE_SWIZZLER2_COMP2 defines two component functions for all component names (x<->r) and permutations (xy<->yx)
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#define _DEFINE_SWIZZLER2(a, b, name) const Vec2<T> name() const { return Vec2<T>(a, b); }
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#define DEFINE_SWIZZLER2(a, b, a2, b2) \
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#define DEFINE_SWIZZLER2_COMP1(a, a2) \
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_DEFINE_SWIZZLER2(a, a, a##a); \
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_DEFINE_SWIZZLER2(a, a, a2##a2)
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#define DEFINE_SWIZZLER2_COMP2(a, b, a2, b2) \
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_DEFINE_SWIZZLER2(a, b, a##b); \
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_DEFINE_SWIZZLER2(a, b, a2##b2); \
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_DEFINE_SWIZZLER2(b, a, b##a); \
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_DEFINE_SWIZZLER2(b, a, b2##a2)
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DEFINE_SWIZZLER2(x, y, r, g);
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DEFINE_SWIZZLER2(x, z, r, b);
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DEFINE_SWIZZLER2(x, w, r, a);
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DEFINE_SWIZZLER2(y, z, g, b);
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DEFINE_SWIZZLER2(y, w, g, a);
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DEFINE_SWIZZLER2(z, w, b, a);
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#undef DEFINE_SWIZZLER2
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DEFINE_SWIZZLER2_COMP2(x, y, r, g);
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DEFINE_SWIZZLER2_COMP2(x, z, r, b);
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DEFINE_SWIZZLER2_COMP2(x, w, r, a);
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DEFINE_SWIZZLER2_COMP2(y, z, g, b);
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DEFINE_SWIZZLER2_COMP2(y, w, g, a);
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DEFINE_SWIZZLER2_COMP2(z, w, b, a);
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DEFINE_SWIZZLER2_COMP1(x, r);
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DEFINE_SWIZZLER2_COMP1(y, g);
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DEFINE_SWIZZLER2_COMP1(z, b);
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DEFINE_SWIZZLER2_COMP1(w, a);
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#undef DEFINE_SWIZZLER2_COMP1
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#undef DEFINE_SWIZZLER2_COMP2
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#undef _DEFINE_SWIZZLER2
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#define _DEFINE_SWIZZLER3(a, b, c, name) const Vec3<T> name() const { return Vec3<T>(a, b, c); }
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#define DEFINE_SWIZZLER3(a, b, c, a2, b2, c2) \
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#define DEFINE_SWIZZLER3_COMP1(a, a2) \
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_DEFINE_SWIZZLER3(a, a, a, a##a##a); \
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_DEFINE_SWIZZLER3(a, a, a, a2##a2##a2)
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#define DEFINE_SWIZZLER3_COMP3(a, b, c, a2, b2, c2) \
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_DEFINE_SWIZZLER3(a, b, c, a##b##c); \
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_DEFINE_SWIZZLER3(a, c, b, a##c##b); \
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_DEFINE_SWIZZLER3(b, a, c, b##a##c); \
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@ -491,11 +505,16 @@ public:
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_DEFINE_SWIZZLER3(c, a, b, c2##a2##b2); \
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_DEFINE_SWIZZLER3(c, b, a, c2##b2##a2)
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DEFINE_SWIZZLER3(x, y, z, r, g, b);
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DEFINE_SWIZZLER3(x, y, w, r, g, a);
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DEFINE_SWIZZLER3(x, z, w, r, b, a);
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DEFINE_SWIZZLER3(y, z, w, g, b, a);
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#undef DEFINE_SWIZZLER3
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DEFINE_SWIZZLER3_COMP3(x, y, z, r, g, b);
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DEFINE_SWIZZLER3_COMP3(x, y, w, r, g, a);
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DEFINE_SWIZZLER3_COMP3(x, z, w, r, b, a);
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DEFINE_SWIZZLER3_COMP3(y, z, w, g, b, a);
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DEFINE_SWIZZLER3_COMP1(x, r);
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DEFINE_SWIZZLER3_COMP1(y, g);
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DEFINE_SWIZZLER3_COMP1(z, b);
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DEFINE_SWIZZLER3_COMP1(w, a);
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#undef DEFINE_SWIZZLER3_COMP1
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#undef DEFINE_SWIZZLER3_COMP3
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#undef _DEFINE_SWIZZLER3
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};
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@ -233,19 +233,29 @@ struct Regs {
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};
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enum class ColorModifier : u32 {
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SourceColor = 0,
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OneMinusSourceColor = 1,
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SourceAlpha = 2,
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OneMinusSourceAlpha = 3,
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SourceColor = 0x0,
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OneMinusSourceColor = 0x1,
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SourceAlpha = 0x2,
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OneMinusSourceAlpha = 0x3,
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SourceRed = 0x4,
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OneMinusSourceRed = 0x5,
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// Other values seem to be non-standard extensions
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SourceGreen = 0x8,
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OneMinusSourceGreen = 0x9,
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SourceBlue = 0xc,
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OneMinusSourceBlue = 0xd,
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};
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enum class AlphaModifier : u32 {
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SourceAlpha = 0,
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OneMinusSourceAlpha = 1,
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// Other values seem to be non-standard extensions
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SourceAlpha = 0x0,
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OneMinusSourceAlpha = 0x1,
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SourceRed = 0x2,
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OneMinusSourceRed = 0x3,
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SourceGreen = 0x4,
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OneMinusSourceGreen = 0x5,
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SourceBlue = 0x6,
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OneMinusSourceBlue = 0x7,
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};
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enum class Operation : u32 {
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@ -260,7 +260,7 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0,
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using AlphaModifier = Regs::TevStageConfig::AlphaModifier;
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using Operation = Regs::TevStageConfig::Operation;
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auto GetColorSource = [&](Source source) -> Math::Vec4<u8> {
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auto GetSource = [&](Source source) -> Math::Vec4<u8> {
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switch (source) {
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case Source::PrimaryColor:
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return primary_color;
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@ -287,36 +287,8 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0,
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}
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};
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auto GetAlphaSource = [&](Source source) -> u8 {
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switch (source) {
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case Source::PrimaryColor:
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return primary_color.a();
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case Source::Texture0:
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return texture_color[0].a();
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case Source::Texture1:
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return texture_color[1].a();
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case Source::Texture2:
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return texture_color[2].a();
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case Source::Constant:
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return tev_stage.const_a;
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case Source::Previous:
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return combiner_output.a();
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default:
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LOG_ERROR(HW_GPU, "Unknown alpha combiner source %d\n", (int)source);
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_dbg_assert_(HW_GPU, 0);
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return 0;
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}
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};
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static auto GetColorModifier = [](ColorModifier factor, const Math::Vec4<u8>& values) -> Math::Vec3<u8> {
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switch (factor)
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{
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switch (factor) {
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case ColorModifier::SourceColor:
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return values.rgb();
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@ -324,27 +296,56 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0,
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return (Math::Vec3<u8>(255, 255, 255) - values.rgb()).Cast<u8>();
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case ColorModifier::SourceAlpha:
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return { values.a(), values.a(), values.a() };
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return values.aaa();
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default:
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LOG_ERROR(HW_GPU, "Unknown color factor %d\n", (int)factor);
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_dbg_assert_(HW_GPU, 0);
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return {};
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case ColorModifier::OneMinusSourceAlpha:
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return (Math::Vec3<u8>(255, 255, 255) - values.aaa()).Cast<u8>();
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case ColorModifier::SourceRed:
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return values.rrr();
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case ColorModifier::OneMinusSourceRed:
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return (Math::Vec3<u8>(255, 255, 255) - values.rrr()).Cast<u8>();
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case ColorModifier::SourceGreen:
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return values.ggg();
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case ColorModifier::OneMinusSourceGreen:
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return (Math::Vec3<u8>(255, 255, 255) - values.ggg()).Cast<u8>();
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case ColorModifier::SourceBlue:
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return values.bbb();
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case ColorModifier::OneMinusSourceBlue:
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return (Math::Vec3<u8>(255, 255, 255) - values.bbb()).Cast<u8>();
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}
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};
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static auto GetAlphaModifier = [](AlphaModifier factor, u8 value) -> u8 {
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static auto GetAlphaModifier = [](AlphaModifier factor, const Math::Vec4<u8>& values) -> u8 {
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switch (factor) {
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case AlphaModifier::SourceAlpha:
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return value;
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return values.a();
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case AlphaModifier::OneMinusSourceAlpha:
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return 255 - value;
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return 255 - values.a();
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default:
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LOG_ERROR(HW_GPU, "Unknown alpha factor %d\n", (int)factor);
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_dbg_assert_(HW_GPU, 0);
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return 0;
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case AlphaModifier::SourceRed:
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return values.r();
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case AlphaModifier::OneMinusSourceRed:
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return 255 - values.r();
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case AlphaModifier::SourceGreen:
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return values.g();
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case AlphaModifier::OneMinusSourceGreen:
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return 255 - values.g();
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case AlphaModifier::SourceBlue:
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return values.b();
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case AlphaModifier::OneMinusSourceBlue:
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return 255 - values.b();
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}
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};
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@ -414,17 +415,17 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0,
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// combiner_output.rgb(), but instead store it in a temporary variable until
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// alpha combining has been done.
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Math::Vec3<u8> color_result[3] = {
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GetColorModifier(tev_stage.color_modifier1, GetColorSource(tev_stage.color_source1)),
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GetColorModifier(tev_stage.color_modifier2, GetColorSource(tev_stage.color_source2)),
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GetColorModifier(tev_stage.color_modifier3, GetColorSource(tev_stage.color_source3))
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GetColorModifier(tev_stage.color_modifier1, GetSource(tev_stage.color_source1)),
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GetColorModifier(tev_stage.color_modifier2, GetSource(tev_stage.color_source2)),
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GetColorModifier(tev_stage.color_modifier3, GetSource(tev_stage.color_source3))
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};
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auto color_output = ColorCombine(tev_stage.color_op, color_result);
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// alpha combiner
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std::array<u8,3> alpha_result = {
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GetAlphaModifier(tev_stage.alpha_modifier1, GetAlphaSource(tev_stage.alpha_source1)),
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GetAlphaModifier(tev_stage.alpha_modifier2, GetAlphaSource(tev_stage.alpha_source2)),
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GetAlphaModifier(tev_stage.alpha_modifier3, GetAlphaSource(tev_stage.alpha_source3))
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GetAlphaModifier(tev_stage.alpha_modifier1, GetSource(tev_stage.alpha_source1)),
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GetAlphaModifier(tev_stage.alpha_modifier2, GetSource(tev_stage.alpha_source2)),
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GetAlphaModifier(tev_stage.alpha_modifier3, GetSource(tev_stage.alpha_source3))
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};
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auto alpha_output = AlphaCombine(tev_stage.alpha_op, alpha_result);
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