pica: Add decodings for distance attenuation and LUT registers.

This commit is contained in:
bunnei 2015-09-12 18:47:15 -04:00
parent 38c7b20475
commit 4369767c72
1 changed files with 104 additions and 1 deletions

View File

@ -643,7 +643,110 @@ struct Regs {
}
}
INSERT_PADDING_WORDS(0xe0);
INSERT_PADDING_WORDS(0x20);
struct {
union LightColor {
BitField< 0, 10, u32> b;
BitField<10, 10, u32> g;
BitField<20, 10, u32> r;
Math::Vec3f ToVec3f() const {
return Math::MakeVec((f32)r / 255.f, (f32)g / 255.f, (f32)b / 255.f);
}
};
struct LightSrc {
LightColor specular_0; // material.specular_0 * light.specular_0
LightColor specular_1; // material.specular_1 * light.specular_1
LightColor diffuse; // material.diffuse * light.diffuse
LightColor ambient; // material.ambient * light.ambient
struct {
// Encoded as 16-bit floating point
u16 x;
u16 y;
u16 z;
u16 unk;
INSERT_PADDING_WORDS(0x3);
// 1.f if 0, otherwise 0.f
BitField<0, 1, u32> w;
} position;
BitField<0, 20, u32> dist_atten_bias;
BitField<0, 20, u32> dist_atten_scale;
INSERT_PADDING_WORDS(0x4);
};
static_assert(sizeof(LightSrc) == 0x10 * sizeof(u32), "LightSrc structure must be 0x10 words");
LightSrc light[8];
LightColor global_ambient; // emission + (material.ambient * lighting.ambient)
INSERT_PADDING_WORDS(0x1);
BitField<0, 3, u32> src_num; // number of enabled lights - 1
INSERT_PADDING_WORDS(0x1);
union {
// Each bit specifies whether distance attenuation should be applied for the
// corresponding light
BitField<24, 1, u32> light_0;
BitField<25, 1, u32> light_1;
BitField<26, 1, u32> light_2;
BitField<27, 1, u32> light_3;
BitField<28, 1, u32> light_4;
BitField<29, 1, u32> light_5;
BitField<30, 1, u32> light_6;
BitField<31, 1, u32> light_7;
bool IsEnabled(unsigned index) const {
const unsigned enable[] = { light_0, light_1, light_2, light_3, light_4, light_5, light_6, light_7 };
return enable[index] == 0;
}
} dist_atten_enable;
union {
BitField<0, 8, u32> index; ///< Index at which to set data in the LUT
BitField<8, 5, u32> type; ///< Type of LUT for which to set data
} lut_config;
BitField<0, 1, u32> disable;
INSERT_PADDING_WORDS(0x1);
// When data is written to any of these registers, it gets written to the lookup table of
// the selected type at the selected index, specified above in the `lut_config` register.
// With each write, `lut_config.index` is incremented. It does not matter which of these
// registers is written to, the behavior will be the same.
u32 lut_data[8];
INSERT_PADDING_WORDS(0x9);
union {
// There are 8 light enable "slots", corresponding to the total number of lights
// supported by Pica. For N enabled lights (specified by register 0x1c2, or 'src_num'
// above), the first N slots below will be set to integers within the range of 0-7,
// corresponding to the actual light that is enabled for each slot.
BitField< 0, 3, u32> slot_0;
BitField< 4, 3, u32> slot_1;
BitField< 8, 3, u32> slot_2;
BitField<12, 3, u32> slot_3;
BitField<16, 3, u32> slot_4;
BitField<20, 3, u32> slot_5;
BitField<24, 3, u32> slot_6;
BitField<28, 3, u32> slot_7;
unsigned GetNum(unsigned index) const {
const unsigned enable_slots[] = { slot_0, slot_1, slot_2, slot_3, slot_4, slot_5, slot_6, slot_7 };
return enable_slots[index];
}
} light_enable;
} lighting;
INSERT_PADDING_WORDS(0x26);
enum class VertexAttributeFormat : u64 {
BYTE = 0,