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Implement GX lighting API (need to update shader generation)

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This commit is contained in:
Phillip Stephens
2022-05-10 01:20:09 -07:00
parent 3cb38cc94c
commit 17136fdfb9
5 changed files with 357 additions and 5 deletions
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78
Runtime/Graphics/GX.hpp
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@@ -1,5 +1,9 @@
#pragma once
#ifndef GX_IS_WII
#define GX_IS_WII 0
#endif
#include "../GCNTypes.hpp"
#include <bit>
@@ -10,6 +14,12 @@
#include <zeus/CTransform.hpp>
namespace GX {
#if GX_IS_WII
constexpr float LARGE_NUMBER = -1.0e+18f;
#else
constexpr float LARGE_NUMBER = -1048576.0f;
#endif
enum Attr {
VA_PNMTXIDX = 0x0,
VA_TEX0MTXIDX = 0x1,
@@ -692,6 +702,39 @@ enum CompType {
RGBA8 = 5,
};
struct LightObj {
u32 __padding[3];
GX::Color color;
float a0 = 1.f;
float a1 = 0.f;
float a2 = 0.f;
float k0 = 1.f;
float k1 = 0.f;
float k2 = 0.f;
float px = 0.f;
float py = 0.f;
float pz = 0.f;
float nx = 0.f;
float ny = 0.f;
float nz = 0.f;
};
enum SpotFn {
SP_OFF,
SP_FLAT,
SP_COS,
SP_COS2,
SP_SHARP,
SP_RING1,
SP_RING2,
};
enum DistAttnFn {
DA_OFF,
DA_GENTLE,
DA_MEDIUM,
DA_STEEP,
};
} // namespace GX
using GXColor = zeus::CColor;
@@ -759,3 +802,38 @@ void GXEnd() noexcept;
void GXSetTevSwapModeTable(GX::TevSwapSel id, GX::TevColorChan red, GX::TevColorChan green, GX::TevColorChan blue,
GX::TevColorChan alpha) noexcept;
void GXSetTevSwapMode(GX::TevStageID stage, GX::TevSwapSel rasSel, GX::TevSwapSel texSel) noexcept;
// Lighting
void GXInitLightAttn(GX::LightObj* light, float a0, float a1, float a2, float k0, float k1, float k2);
void GXInitLightAttnA(GX::LightObj* light, float a0, float a1, float a2);
void GXInitLightAttnK(GX::LightObj* light, float k0, float k1, float k2);
void GXInitLightSpot(GX::LightObj* light, float cutoff, GX::SpotFn spotFn);
void GXInitLightDistAttn(GX::LightObj* light, float refDistance, float refBrightness, GX::DistAttnFn distFunc);
constexpr void GXInitLightShininess(GX::LightObj* light, float shininess) {
GXInitLightAttn(light, 0.f, 0.f, 1.f, (shininess) / 2.f, 0.f, 1.f - (shininess) / 2.f);
}
void GXInitLightPos(GX::LightObj* light, float x, float y, float z);
constexpr void GXInitLightPosv(GX::LightObj* light, float vec[3]) { GXInitLightPos(light, vec[0], vec[1], vec[2]); }
void GXInitLightDir(GX::LightObj* light, float nx, float ny, float nz);
constexpr void GXInitLightDirv(GX::LightObj* light, float vec[3]) { GXInitLightDir(light, vec[0], vec[1], vec[2]); }
void GXInitSpecularDir(GX::LightObj* light, float nx, float ny, float nz);
void GXInitSpecularDirHA(GX::LightObj* light, float nx, float ny, float nz, float hx, float hy, float hz);
constexpr void GXInitLightSpecularDirHAv(GX::LightObj* light, float vecn[3], float vech[3]) {
GXInitSpecularDirHA(light, vecn[0], vecn[1], vecn[2], vech[0], vech[1], vech[2]);
}
void GXInitLightColor(GX::LightObj* light, GX::Color col);
void GXLoadLightObjImm(const GX::LightObj* light, GX::LightID id);
void GXLoadLightObjIndx(u32 index, GX::LightID);
void GXGetLightAttnA(const GX::LightObj* light, float* a0, float* a1, float* a2);
void GXGetLightAttnK(const GX::LightObj* light, float* k0, float* k1, float* k2);
void GXGetLightPos(const GX::LightObj* light, float* x, float* y, float* z);
constexpr void GXGetLightPosv(const GX::LightObj* light, float* vec[3]) {
GXGetLightPos(light, vec[0], vec[1], vec[2]);
}
void GXGetLightDir(const GX::LightObj* light, float* nx, float* ny, float* nz);
constexpr void GXGetLightDirv(const GX::LightObj* light, float* vec[3]) {
GXGetLightDir(light, vec[0], vec[1], vec[2]);
}
void GXGetLightColor(const GX::LightObj* light, GX::Color* col);