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More DolphinCGraphics

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This commit is contained in:
Luke Street
2022-11-30 01:43:17 -05:00
parent 609873426e
commit d9f71836b5
3 changed files with 183 additions and 3 deletions
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108
src/Kyoto/Graphics/DolphinCGraphics.cpp
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@@ -383,6 +383,9 @@ void CGraphics::EnableLight(ERglLight light) {
}
static inline GXLightID get_hw_light_index(ERglLight light) {
#if NONMATCHING
return static_cast< GXLightID >((light << 1) & (GX_MAX_LIGHT - 1));
#else
if (light == kLight0) {
return GX_LIGHT0;
} else if (light == kLight1) {
@@ -400,6 +403,7 @@ static inline GXLightID get_hw_light_index(ERglLight light) {
}
// wtf?
return static_cast< GXLightID >(light == kLight7 ? GX_LIGHT7 : 0);
#endif
}
void CGraphics::LoadLight(ERglLight light, const CLight& info) {
@@ -462,3 +466,107 @@ void CGraphics::DisableAllLights() {
CGX::SetChanCtrl(CGX::Channel0, false, GX_SRC_REG, GX_SRC_REG, GX_LIGHT_NULL, GX_DF_NONE,
GX_AF_NONE);
}
// https://en.wikipedia.org/wiki/Hamming_weight
static inline uint popcount8(uint b) {
b = (b & 0x55) + ((b & 0xAA) >> 1);
b = (b & 0x33) + ((b & 0xCC) >> 2);
return (static_cast< uchar >(b) & 0xF) + (static_cast< uchar >(b) >> 4);
}
void CGraphics::SetLightState(uchar lights) {
GXAttnFn attnFn = GX_AF_NONE;
if (lights != 0) {
attnFn = GX_AF_SPOT;
}
GXDiffuseFn diffFn = GX_DF_NONE;
if (lights != 0) {
diffFn = GX_DF_CLAMP;
}
CGX::SetChanCtrl(CGX::Channel0, lights != 0 ? GX_TRUE : GX_FALSE, GX_SRC_REG,
(vtxDescr.streamFlags & 2) != 0 ? GX_SRC_VTX : GX_SRC_REG,
static_cast< GXLightID >(lights), diffFn, attnFn);
mLightActive = lights;
mNumLightsActive = popcount8(lights);
}
void CGraphics::SetViewMatrix() {
Mtx mtx;
MTXTrans(mtx, -mViewPoint.GetX(), -mViewPoint.GetY(), -mViewPoint.GetZ());
MTXConcat(mGXViewPointMatrix, mtx, mCameraMtx);
if (mIsGXModelMatrixIdentity) {
MTXCopy(mCameraMtx, mGxModelView);
} else {
MTXConcat(mCameraMtx, mGXModelMatrix, mGxModelView);
}
GXLoadPosMtxImm(mGxModelView, GX_PNMTX0);
Mtx nrmMtx;
MTXInvXpose(mGxModelView, nrmMtx);
GXLoadNrmMtxImm(nrmMtx, GX_PNMTX0);
}
void CGraphics::SetViewPointMatrix(const CTransform4f& xf) {
mViewMatrix = xf;
mGXViewPointMatrix[0][0] = xf.Get00();
mGXViewPointMatrix[0][1] = xf.Get10();
mGXViewPointMatrix[0][2] = xf.Get20();
mGXViewPointMatrix[0][3] = 0.f;
mGXViewPointMatrix[1][0] = xf.Get02();
mGXViewPointMatrix[1][1] = xf.Get12();
mGXViewPointMatrix[1][2] = xf.Get22();
mGXViewPointMatrix[1][3] = 0.f;
mGXViewPointMatrix[2][0] = -xf.Get01();
mGXViewPointMatrix[2][1] = -xf.Get11();
mGXViewPointMatrix[2][2] = -xf.Get21();
mGXViewPointMatrix[2][3] = 0.f;
mViewPoint = xf.GetTranslation();
SetViewMatrix();
}
void CGraphics::SetIdentityViewPointMatrix() {
mViewMatrix = CTransform4f::Identity();
MTXIdentity(mGXViewPointMatrix);
mGXViewPointMatrix[2][2] = 0.0;
mGXViewPointMatrix[1][1] = 0.0;
mGXViewPointMatrix[1][2] = 1.0;
mGXViewPointMatrix[2][1] = -1.0;
mViewPoint = CVector3f::Zero();
SetViewMatrix();
}
// TODO: non-matching
void CGraphics::SetModelMatrix(const CTransform4f& xf) {
if (&xf == &CTransform4f::Identity()) {
if (!mIsGXModelMatrixIdentity) {
mModelMatrix = CTransform4f::Identity();
mIsGXModelMatrixIdentity = true;
SetViewMatrix();
}
return;
}
mModelMatrix = xf;
mIsGXModelMatrixIdentity = false;
mGXModelMatrix[0][0] = xf.Get00();
mGXModelMatrix[0][1] = xf.Get01();
mGXModelMatrix[0][2] = xf.Get02();
mGXModelMatrix[0][3] = xf.Get03();
mGXModelMatrix[1][0] = xf.Get10();
mGXModelMatrix[1][1] = xf.Get11();
mGXModelMatrix[1][2] = xf.Get12();
mGXModelMatrix[1][3] = xf.Get13();
mGXModelMatrix[2][0] = xf.Get20();
mGXModelMatrix[2][1] = xf.Get21();
mGXModelMatrix[2][2] = xf.Get22();
mGXModelMatrix[2][3] = xf.Get23();
SetViewMatrix();
}
void CGraphics::SetIdentityModelMatrix() {
if (!mIsGXModelMatrixIdentity) {
mModelMatrix = CTransform4f::Identity();
mIsGXModelMatrixIdentity = true;
SetViewMatrix();
}
}