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Merged
mattbruv merged 2 commits into from
Nov 17, 2025
Merged

iScrFX work #647

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5802890
iScrFX work
bluisblu Nov 17, 2025
64b910a
clang format
bluisblu Nov 17, 2025
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110 changes: 86 additions & 24 deletions src/SB/Core/gc/iScrFX.cpp
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Original file line number Diff line number Diff line change
@@ -1,15 +1,12 @@
#include "iScrFX.h"

#include "rwplcore.h"
#include <types.h>

extern RwRaster* g_rast_gctapdance;
extern S32 g_alreadyTriedAlloc;
extern _iMotionBlurData sMBD;
extern U32 sMotionBlurEnabled;
extern F32 lbl_803CE168; // 0.0f
extern F32 lbl_803CE174; // 1.0f
extern F32 lbl_803CE178; // 0.5f
extern F32 lbl_803CE17C; // 254f
static U32 sMotionBlurEnabled;
static RwRaster* g_rast_gctapdance;
static S32 g_alreadyTriedAlloc;
static _iMotionBlurData sMBD = {};

void iScrFxInit()
{
Expand All @@ -22,22 +19,49 @@ void iScrFxBegin()
RwRenderStateSet(rwRENDERSTATEZTESTENABLE, NULL);
RwRenderStateSet(rwRENDERSTATEZWRITEENABLE, NULL);
RwRenderStateSet(rwRENDERSTATETEXTURERASTER, NULL);
RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void*)true);
RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void*)TRUE);
RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDSRCALPHA);
RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDINVSRCALPHA);
}

void iScrFxEnd()
{
RwRenderStateSet(rwRENDERSTATEFOGENABLE, (void*)rwFOGTYPENAFOGTYPE);
RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void*)true);
RwRenderStateSet(rwRENDERSTATEZWRITEENABLE, (void*)true);
RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void*)TRUE);
RwRenderStateSet(rwRENDERSTATEZWRITEENABLE, (void*)TRUE);
RwRenderStateSet(rwRENDERSTATETEXTURERASTER, NULL);
RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void*)false);
RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void*)FALSE);
RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDONE);
RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDZERO);
}

void iScrFxDrawBox(F32 x1, F32 y1, F32 x2, F32 y2, U8 red, U8 green, U8 blue, U8 alpha)
{
U16 indices[4] = { 0, 1, 2, 3 };
rwGameCube2DVertex v[4];
F32 nearZ = RwIm2DGetNearScreenZ();

RwIm2DVertexSetScreenX(&v[0], x1);
RwIm2DVertexSetScreenY(&v[0], y1);
RwIm2DVertexSetScreenZ(&v[0], nearZ);
RwIm2DVertexSetScreenX(&v[1], x2);
RwIm2DVertexSetScreenY(&v[1], y1);
RwIm2DVertexSetScreenZ(&v[1], nearZ);
RwIm2DVertexSetScreenX(&v[2], x1);
RwIm2DVertexSetScreenY(&v[2], y2);
RwIm2DVertexSetScreenZ(&v[2], nearZ);
RwIm2DVertexSetScreenX(&v[3], x2);
RwIm2DVertexSetScreenY(&v[3], y2);
RwIm2DVertexSetScreenZ(&v[3], nearZ);

for (S32 i = 0; i < 4; i++)
{
RwIm2DVertexSetRealRGBA(&v[i], red, green, blue, alpha);
}

RwIm2DRenderIndexedPrimitive(rwPRIMTYPETRISTRIP, v, 4, indices, 4);
}

void iCameraMotionBlurActivate(U32 activate)
{
sMotionBlurEnabled = activate;
Expand All @@ -46,18 +70,19 @@ void iCameraMotionBlurActivate(U32 activate)
// The instructions regarding the setting of sMotionBlurEnabled and sMBD.motionBlurAlpha are in the wrong order.
void iCameraSetBlurriness(F32 amount)
{
if (amount <= lbl_803CE168)
if (amount <= 0.0f)
{
sMotionBlurEnabled = 0;
sMotionBlurEnabled = FALSE;
}
else
{
if (amount > lbl_803CE174)
if (amount > 1.0f)
{
amount = lbl_803CE174;
amount = 1.0f;
}
sMotionBlurEnabled = 1;
sMBD.motionBlurAlpha = (S32)(lbl_803CE17C * amount + lbl_803CE178);
sMotionBlurEnabled = TRUE;

sMBD.motionBlurAlpha = 254.0f * amount + 0.5f;
}
}

Expand All @@ -77,7 +102,7 @@ void iScrFxCameraCreated(RwCamera* pCamera)

void iScrFxCameraEndScene(RwCamera* pCamera)
{
if ((sMotionBlurEnabled != 0) && (sMBD.motionBlurAlpha != 0))
if (sMotionBlurEnabled && sMBD.motionBlurAlpha != 0)
{
iScrFxMotionBlurRender(pCamera, sMBD.motionBlurAlpha & 0xff);
}
Expand All @@ -88,7 +113,46 @@ void iScrFxPostCameraEnd(RwCamera* pCamera)
GCMB_SiphonFrameBuffer(pCamera);
}

RwRaster* FBMBlur_DebugIntervention(RwCamera* camera, RwRaster* ras)
static void iCameraOverlayRender(RwCamera* pCamera, RwRaster* ras, RwRGBA col)
{
//RwRect rect; // from dwarf, not sure where it's used
RwRaster* raster = FBMBlur_DebugIntervention(pCamera, ras);

for (S32 i = 0; i < 4; i++)
{
sMBD.vertex[i].emissiveColor.red = col.red;
sMBD.vertex[i].emissiveColor.green = col.green;
sMBD.vertex[i].emissiveColor.blue = col.blue;
sMBD.vertex[i].emissiveColor.alpha = col.alpha;
}

RwRenderStateSet(rwRENDERSTATETEXTUREFILTER, (void*)TRUE);
RwRenderStateSet(rwRENDERSTATEFOGENABLE, (void*)FALSE);
RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void*)FALSE);
RwRenderStateSet(rwRENDERSTATEZWRITEENABLE, (void*)FALSE);
RwRenderStateSet(rwRENDERSTATETEXTURERASTER, raster);
RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void*)TRUE);
RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDSRCALPHA);
RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDINVSRCALPHA);
if (raster != 0)
{
RwRasterLock(raster, 0, 2);
}
RwIm2DRenderIndexedPrimitive(rwPRIMTYPETRILIST, sMBD.vertex, 4, sMBD.index, 6);
if (raster != 0)
{
RwRasterUnlock(raster);
}
RwRenderStateSet(rwRENDERSTATEFOGENABLE, (void*)FALSE);
RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void*)TRUE);
RwRenderStateSet(rwRENDERSTATEZWRITEENABLE, (void*)TRUE);
RwRenderStateSet(rwRENDERSTATETEXTURERASTER, NULL);
RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void*)FALSE);
RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDSRCALPHA);
RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDINVSRCALPHA);
}

inline RwRaster* FBMBlur_DebugIntervention(RwCamera* camera, RwRaster* ras)
{
return ras;
}
Expand All @@ -110,13 +174,11 @@ S32 iScrFxCameraDestroyed(RwCamera* pCamera)
return 0;
}

// WIP.
void iScrFxMotionBlurRender(RwCamera* camera, U32 col)
void iScrFxMotionBlurRender(RwCamera* camera, U32 alpha)
{
if (sMBD.motionBlurFrontBuffer != NULL)
{
RwRGBA col;
col.alpha = 0xf8;
RwRGBA col = { 0xff, 0xff, 0xff, (U8)alpha };
iCameraOverlayRender(camera, (RwRaster*)sMBD.motionBlurFrontBuffer, col);
}
}
Expand Down
10 changes: 4 additions & 6 deletions src/SB/Core/gc/iScrFX.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -8,25 +8,23 @@ struct _iMotionBlurData
{
S32 motionBlurAlpha;
RwRaster* motionBlurFrontBuffer;
// RwSky2DVertex vertex[4]; This doesn't seem right... Due to how the data is used, it only makes sense for this to be 96 only.
U8 vertex[96];
rwGameCube2DVertex vertex[4];
U16 index[6];
U32 w;
U32 h;
U8 unk[10]; // There is something here to make this structure 0x88.
U8 unk[8];
};

void iScrFxInit();
void iScrFxBegin();
void iScrFxEnd();
void iScrFxDrawBox(F32 x1, F32 y1, F32 x2, F32 y2, U8 red, U8 green,
U8 blue, U8 alpha);
void iScrFxDrawBox(F32 x1, F32 y1, F32 x2, F32 y2, U8 red, U8 green, U8 blue, U8 alpha);
void iCameraMotionBlurActivate(U32 activate);
void iCameraSetBlurriness(F32 amount);
void iScrFxCameraCreated(RwCamera* pCamera);
void iScrFxCameraEndScene(RwCamera* pCamera);
void iScrFxPostCameraEnd(RwCamera* pCamera);
void iCameraOverlayRender(RwCamera* pcamera, RwRaster* ras, RwRGBA col);
static void iCameraOverlayRender(RwCamera* pCamera, RwRaster* ras, RwRGBA col);
RwRaster* FBMBlur_DebugIntervention(RwCamera* camera, RwRaster* ras);
S32 iScrFxMotionBlurOpen(RwCamera* camera);
S32 iScrFxCameraDestroyed(RwCamera* pCamera);
Expand Down