metaforce/Runtime/GuiSys/CGuiCamera.cpp

69 lines
2.7 KiB
C++

#include "Runtime/GuiSys/CGuiCamera.hpp"
#include "Runtime/Graphics/CGraphics.hpp"
#include "Runtime/GuiSys/CGuiFrame.hpp"
#include "Runtime/GuiSys/CGuiWidgetDrawParms.hpp"
namespace urde {
CGuiCamera::CGuiCamera(const CGuiWidgetParms& parms, float left, float right, float top, float bottom, float znear,
float zfar)
: CGuiWidget(parms), xb8_projtype(EProjection::Orthographic), m_proj(left, right, top, bottom, znear, zfar) {}
CGuiCamera::CGuiCamera(const CGuiWidgetParms& parms, float fov, float aspect, float znear, float zfar)
: CGuiWidget(parms), xb8_projtype(EProjection::Perspective), m_proj(fov, aspect, znear, zfar) {}
zeus::CVector3f CGuiCamera::ConvertToScreenSpace(const zeus::CVector3f& vec) const {
zeus::CVector3f local = RotateTranslateW2O(vec);
if (local.isZero())
return {-1.f, -1.f, 1.f};
zeus::CMatrix4f mat = CGraphics::CalculatePerspectiveMatrix(m_proj.xbc_fov, m_proj.xc0_aspect, m_proj.xc4_znear,
m_proj.xc8_zfar, false);
local = zeus::CVector3f(local.x(), local.z(), -local.y());
return mat.multiplyOneOverW(local);
}
void CGuiCamera::Draw(const CGuiWidgetDrawParms& parms) {
if (xb8_projtype == EProjection::Perspective) {
CGraphics::SetPerspective(m_proj.xbc_fov, m_proj.xc0_aspect, m_proj.xc4_znear, m_proj.xc8_zfar);
} else {
CGraphics::SetOrtho(m_proj.xbc_left, m_proj.xc0_right, m_proj.xc4_top, m_proj.xc8_bottom, m_proj.xcc_znear,
m_proj.xd0_zfar);
}
CGraphics::SetViewPointMatrix(GetGuiFrame()->GetAspectTransform() *
zeus::CTransform::Translate(parms.x4_cameraOffset) * x34_worldXF);
CGuiWidget::Draw(parms);
}
std::shared_ptr<CGuiWidget> CGuiCamera::Create(CGuiFrame* frame, CInputStream& in, CSimplePool* sp) {
CGuiWidgetParms parms = ReadWidgetHeader(frame, in);
EProjection proj = EProjection(in.readUint32Big());
std::shared_ptr<CGuiCamera> ret = {};
switch (proj) {
case EProjection::Perspective: {
float fov = in.readFloatBig();
float aspect = in.readFloatBig();
float znear = in.readFloatBig();
float zfar = in.readFloatBig();
ret = std::make_shared<CGuiCamera>(parms, fov, aspect, znear, zfar);
break;
}
case EProjection::Orthographic: {
float left = in.readFloatBig();
float right = in.readFloatBig();
float top = in.readFloatBig();
float bottom = in.readFloatBig();
float znear = in.readFloatBig();
float zfar = in.readFloatBig();
ret = std::make_shared<CGuiCamera>(parms, left, right, top, bottom, znear, zfar);
break;
}
}
frame->SetFrameCamera(ret->shared_from_this());
ret->ParseBaseInfo(frame, in, parms);
return ret;
}
} // namespace urde