mirror of https://github.com/AxioDL/metaforce.git
252 lines
7.5 KiB
C++
252 lines
7.5 KiB
C++
#include "Graphics/CGraphics.hpp"
|
|
#include "zeus/Math.hpp"
|
|
|
|
#undef near
|
|
#undef far
|
|
|
|
namespace urde
|
|
{
|
|
|
|
CGraphics::CProjectionState CGraphics::g_Proj;
|
|
float CGraphics::g_ProjAspect = 1.f;
|
|
u32 CGraphics::g_NumLightsActive = 0;
|
|
u32 CGraphics::g_NumBreakpointsWaiting = 0;
|
|
u32 CGraphics::g_FlippingState;
|
|
bool CGraphics::g_LastFrameUsedAbove = false;
|
|
bool CGraphics::g_InterruptLastFrameUsedAbove = false;
|
|
ERglLight CGraphics::g_LightActive = ERglLight::None;
|
|
ERglLight CGraphics::g_LightsWereOn = ERglLight::None;
|
|
zeus::CTransform CGraphics::g_GXModelView;
|
|
zeus::CTransform CGraphics::g_GXModelMatrix;
|
|
zeus::CTransform CGraphics::g_ViewMatrix;
|
|
zeus::CVector3f CGraphics::g_ViewPoint;
|
|
zeus::CTransform CGraphics::g_GXViewPointMatrix;
|
|
zeus::CTransform CGraphics::g_CameraMatrix;
|
|
zeus::CVector2i CGraphics::g_ViewportResolution;
|
|
zeus::CVector2i CGraphics::g_ViewportResolutionHalf;
|
|
int CGraphics::g_ViewportSamples = 1;
|
|
bool CGraphics::g_IsGXModelMatrixIdentity;
|
|
|
|
void CGraphics::DisableAllLights()
|
|
{
|
|
g_NumLightsActive = 0;
|
|
g_LightActive = ERglLight::None;
|
|
// TODO: turn lights off for real
|
|
}
|
|
|
|
void CGraphics::EnableLight(ERglLight light)
|
|
{
|
|
if ((light & g_LightActive) == ERglLight::None)
|
|
{
|
|
g_LightActive |= light;
|
|
++g_NumLightsActive;
|
|
// TODO: turn light on for real
|
|
}
|
|
g_LightsWereOn = g_LightActive;
|
|
}
|
|
|
|
void CGraphics::SetLightState(ERglLight lightState)
|
|
{
|
|
// TODO: set state for real
|
|
g_LightActive = lightState;
|
|
g_NumLightsActive = zeus::PopCount(lightState);
|
|
}
|
|
|
|
void CGraphics::SetDepthWriteMode(bool test, ERglEnum comp, bool write)
|
|
{
|
|
|
|
}
|
|
|
|
void CGraphics::SetBlendMode(ERglBlendMode, ERglBlendFactor, ERglBlendFactor, ERglLogicOp)
|
|
{
|
|
}
|
|
|
|
void CGraphics::SetCullMode(ERglCullMode)
|
|
{
|
|
}
|
|
|
|
void CGraphics::EndScene()
|
|
{
|
|
/* Spinwait until g_NumBreakpointsWaiting is 0 */
|
|
/* ++g_NumBreakpointsWaiting; */
|
|
/* GXCopyDisp to g_CurrenFrameBuf with clear enabled */
|
|
/* Register next breakpoint with GP FIFO */
|
|
|
|
/* Yup, GX had fences long before D3D12 and Vulkan
|
|
* (same functionality implemented in boo's execute method) */
|
|
|
|
/* This usually comes from VI register during interrupt;
|
|
* we don't care in the era of progressive-scan dominance,
|
|
* so simulate field-flipping with XOR instead */
|
|
g_InterruptLastFrameUsedAbove ^= 1;
|
|
g_LastFrameUsedAbove = g_InterruptLastFrameUsedAbove;
|
|
}
|
|
|
|
void CGraphics::SetAlphaCompare(ERglAlphaFunc comp0, u8 ref0, ERglAlphaOp op, ERglAlphaFunc comp1, u8 ref1)
|
|
{
|
|
}
|
|
|
|
void CGraphics::SetViewPointMatrix(const zeus::CTransform& xf)
|
|
{
|
|
g_ViewMatrix = xf;
|
|
g_ViewPoint = xf.m_origin;
|
|
zeus::CMatrix3f tmp(xf.m_basis[0], xf.m_basis[2], -xf.m_basis[1]);
|
|
g_GXViewPointMatrix = zeus::CTransform(tmp.transposed());
|
|
SetViewMatrix();
|
|
}
|
|
|
|
void CGraphics::SetViewMatrix()
|
|
{
|
|
g_CameraMatrix = g_GXViewPointMatrix * zeus::CTransform::Translate(-g_ViewPoint);
|
|
if (g_IsGXModelMatrixIdentity)
|
|
g_GXModelView = g_CameraMatrix;
|
|
else
|
|
g_GXModelView = g_CameraMatrix * g_GXModelMatrix;
|
|
/* Load position matrix */
|
|
/* Inverse-transpose */
|
|
/* Load normal matrix */
|
|
}
|
|
|
|
void CGraphics::SetModelMatrix(const zeus::CTransform& xf)
|
|
{
|
|
g_IsGXModelMatrixIdentity = false;
|
|
g_GXModelMatrix = xf;
|
|
SetViewMatrix();
|
|
}
|
|
|
|
zeus::CMatrix4f CGraphics::GetPerspectiveProjectionMatrix()
|
|
{
|
|
float rml = g_Proj.x8_right - g_Proj.x4_left;
|
|
float rpl = g_Proj.x8_right + g_Proj.x4_left;
|
|
float tmb = g_Proj.xc_top - g_Proj.x10_bottom;
|
|
float tpb = g_Proj.xc_top + g_Proj.x10_bottom;
|
|
float fmn = g_Proj.x18_far - g_Proj.x14_near;
|
|
float fpn = g_Proj.x18_far + g_Proj.x14_near;
|
|
return zeus::CMatrix4f(2.f * g_Proj.x14_near / rml, 0.f, rpl / rml, 0.f,
|
|
0.f, 2.f * g_Proj.x14_near / tmb, tpb / tmb, 0.f,
|
|
0.f, 0.f, -fpn / fmn, -2.f * g_Proj.x18_far * g_Proj.x14_near / fmn,
|
|
0.f, 0.f, -1.f, 0.f);
|
|
}
|
|
|
|
const CGraphics::CProjectionState& CGraphics::GetProjectionState()
|
|
{
|
|
return g_Proj;
|
|
}
|
|
|
|
void CGraphics::SetProjectionState(const CGraphics::CProjectionState& proj)
|
|
{
|
|
g_Proj = proj;
|
|
FlushProjection();
|
|
}
|
|
|
|
void CGraphics::SetPerspective(float fovy, float aspect, float near, float far)
|
|
{
|
|
g_ProjAspect = aspect;
|
|
|
|
float tfov = std::tan(zeus::degToRad(fovy * 0.5f));
|
|
g_Proj.x0_persp = true;
|
|
g_Proj.x14_near = near;
|
|
g_Proj.x18_far = far;
|
|
g_Proj.xc_top = near * tfov;
|
|
g_Proj.x10_bottom = -g_Proj.xc_top;
|
|
g_Proj.x8_right = aspect * near * tfov;
|
|
g_Proj.x4_left = -g_Proj.x8_right;
|
|
}
|
|
|
|
void CGraphics::FlushProjection()
|
|
{
|
|
if (g_Proj.x0_persp)
|
|
{
|
|
// Convert and load persp
|
|
}
|
|
else
|
|
{
|
|
// Convert and load ortho
|
|
}
|
|
}
|
|
|
|
zeus::CVector2i CGraphics::ProjectPoint(const zeus::CVector3f& point)
|
|
{
|
|
zeus::CVector3f projPt = GetPerspectiveProjectionMatrix().multiplyOneOverW(point);
|
|
return {int(projPt.x * g_ViewportResolutionHalf.x) + g_ViewportResolutionHalf.x,
|
|
g_ViewportResolution.y - (int(projPt.y * g_ViewportResolutionHalf.y) + g_ViewportResolutionHalf.y)};
|
|
}
|
|
|
|
SClipScreenRect CGraphics::ClipScreenRectFromMS(const zeus::CVector3f& p1,
|
|
const zeus::CVector3f& p2)
|
|
{
|
|
zeus::CVector3f xf1 = g_GXModelView * p1;
|
|
zeus::CVector3f xf2 = g_GXModelView * p2;
|
|
return ClipScreenRectFromVS(xf1, xf2);
|
|
}
|
|
|
|
SClipScreenRect CGraphics::ClipScreenRectFromVS(const zeus::CVector3f& p1,
|
|
const zeus::CVector3f& p2)
|
|
{
|
|
if (p1.x == 0.f && p1.y == 0.f && p1.z == 0.f)
|
|
return {};
|
|
if (p2.x == 0.f && p2.y == 0.f && p2.z == 0.f)
|
|
return {};
|
|
|
|
if (p1.y < GetProjectionState().x14_near || p2.y < GetProjectionState().x14_near)
|
|
return {};
|
|
if (p1.y > GetProjectionState().x18_far || p2.y > GetProjectionState().x18_far)
|
|
return {};
|
|
|
|
zeus::CVector2i sp1 = ProjectPoint(p1);
|
|
zeus::CVector2i sp2 = ProjectPoint(p2);
|
|
int minX = std::min(sp2.x, sp1.x);
|
|
int minX2 = minX & 0xfffffffe;
|
|
int minY = std::min(sp2.y, sp1.y);
|
|
int minY2 = minY & 0xfffffffe;
|
|
|
|
|
|
if (minX2 >= g_ViewportResolution.x)
|
|
return {};
|
|
|
|
int maxX = abs(sp1.x - sp2.x) + minX;
|
|
int maxX2 = (maxX + 2) & 0xfffffffe;
|
|
if (maxX2 <= 0 /* ViewportX origin */)
|
|
return {};
|
|
|
|
int finalMinX = std::max(minX, 0 /* ViewportX origin */);
|
|
int finalMaxX = std::min(maxX, g_ViewportResolution.x);
|
|
|
|
|
|
if (minY2 >= g_ViewportResolution.y)
|
|
return {};
|
|
|
|
int maxY = abs(sp1.y - sp2.y) + minY;
|
|
int maxY2 = (maxY + 2) & 0xfffffffe;
|
|
if (maxY2 <= 0 /* ViewportY origin */)
|
|
return {};
|
|
|
|
int finalMinY = std::max(minY, 0 /* ViewportY origin */);
|
|
int finalMaxY = std::min(maxY, g_ViewportResolution.y);
|
|
|
|
int width = maxX2 - minX2;
|
|
int height = maxY2 - minY2;
|
|
return {true, minX2, minY2, width, height, width,
|
|
minX2 / float(g_ViewportResolution.x), maxX2 / float(g_ViewportResolution.x),
|
|
1.f - maxY2 / float(g_ViewportResolution.y), 1.f - minY2 / float(g_ViewportResolution.y)};
|
|
|
|
}
|
|
|
|
zeus::CVector3f CGraphics::ProjectModelPointToViewportSpace(const zeus::CVector3f& point)
|
|
{
|
|
zeus::CVector3f pt = g_GXModelView * point;
|
|
return GetPerspectiveProjectionMatrix().multiplyOneOverW(pt);
|
|
}
|
|
|
|
void CGraphics::SetViewportResolution(const zeus::CVector2i& res)
|
|
{
|
|
g_ViewportResolution = res;
|
|
g_ViewportResolutionHalf = {res.x / 2, res.y / 2};
|
|
}
|
|
|
|
boo::IGraphicsDataFactory* CGraphics::g_BooFactory = nullptr;
|
|
boo::IGraphicsCommandQueue* CGraphics::g_BooMainCommandQueue = nullptr;
|
|
boo::ITextureR* CGraphics::g_SpareTexture = nullptr;
|
|
|
|
}
|