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re3/src/render/MBlur.cpp

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C++
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#include "common.h"
#include "RwHelper.h"
#include "Camera.h"
#include "MBlur.h"
// Originally taken from RW example 'mblur'
RwRaster *CMBlur::pFrontBuffer;
bool CMBlur::ms_bJustInitialised;
bool CMBlur::BlurOn;
static RwIm2DVertex Vertex[4];
static RwIm2DVertex Vertex2[4];
static RwImVertexIndex Index[6] = { 0, 1, 2, 0, 2, 3 };
void
CMBlur::MotionBlurOpen(RwCamera *cam)
{
// TODO. this is simplified
RwRect rect = { 0, 0, 0, 0 };
if(pFrontBuffer)
MotionBlurClose();
if(BlurOn){
for(rect.w = 1; rect.w < RwRasterGetWidth(RwCameraGetRaster(cam)); rect.w *= 2);
for(rect.h = 1; rect.h < RwRasterGetHeight(RwCameraGetRaster(cam)); rect.h *= 2);
pFrontBuffer = RwRasterCreate(rect.w, rect.h, RwRasterGetDepth(RwCameraGetRaster(cam)), rwRASTERTYPECAMERATEXTURE);
if(pFrontBuffer)
ms_bJustInitialised = true;
else{
debug("MBlurOpen can't create raster.");
BlurOn = false;
rect.w = RwRasterGetWidth(RwCameraGetRaster(cam));
rect.h = RwRasterGetHeight(RwCameraGetRaster(cam));
}
CreateImmediateModeData(cam, &rect);
}else{
rect.w = RwRasterGetWidth(RwCameraGetRaster(cam));
rect.h = RwRasterGetHeight(RwCameraGetRaster(cam));
CreateImmediateModeData(cam, &rect);
}
}
void
CMBlur::MotionBlurClose(void)
{
if(pFrontBuffer){
RwRasterDestroy(pFrontBuffer);
pFrontBuffer = nil;
}
}
void
CMBlur::CreateImmediateModeData(RwCamera *cam, RwRect *rect)
{
float zero, xmax, ymax;
if(RwRasterGetDepth(RwCameraGetRaster(cam)) == 16){
zero = HALFPX;
xmax = rect->w + HALFPX;
ymax = rect->h + HALFPX;
}else{
zero = -HALFPX;
xmax = rect->w - HALFPX;
ymax = rect->h - HALFPX;
}
RwIm2DVertexSetScreenX(&Vertex[0], zero);
RwIm2DVertexSetScreenY(&Vertex[0], zero);
RwIm2DVertexSetScreenZ(&Vertex[0], RwIm2DGetNearScreenZ());
RwIm2DVertexSetCameraZ(&Vertex[0], RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetRecipCameraZ(&Vertex[0], 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetU(&Vertex[0], 0.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetV(&Vertex[0], 0.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetIntRGBA(&Vertex[0], 255, 255, 255, 255);
RwIm2DVertexSetScreenX(&Vertex[1], zero);
RwIm2DVertexSetScreenY(&Vertex[1], ymax);
RwIm2DVertexSetScreenZ(&Vertex[1], RwIm2DGetNearScreenZ());
RwIm2DVertexSetCameraZ(&Vertex[1], RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetRecipCameraZ(&Vertex[1], 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetU(&Vertex[1], 0.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetV(&Vertex[1], 1.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetIntRGBA(&Vertex[1], 255, 255, 255, 255);
RwIm2DVertexSetScreenX(&Vertex[2], xmax);
RwIm2DVertexSetScreenY(&Vertex[2], ymax);
RwIm2DVertexSetScreenZ(&Vertex[2], RwIm2DGetNearScreenZ());
RwIm2DVertexSetCameraZ(&Vertex[2], RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetRecipCameraZ(&Vertex[2], 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetU(&Vertex[2], 1.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetV(&Vertex[2], 1.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetIntRGBA(&Vertex[2], 255, 255, 255, 255);
RwIm2DVertexSetScreenX(&Vertex[3], xmax);
RwIm2DVertexSetScreenY(&Vertex[3], zero);
RwIm2DVertexSetScreenZ(&Vertex[3], RwIm2DGetNearScreenZ());
RwIm2DVertexSetCameraZ(&Vertex[3], RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetRecipCameraZ(&Vertex[3], 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetU(&Vertex[3], 1.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetV(&Vertex[3], 0.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetIntRGBA(&Vertex[3], 255, 255, 255, 255);
RwIm2DVertexSetScreenX(&Vertex2[0], zero);
RwIm2DVertexSetScreenY(&Vertex2[0], zero);
RwIm2DVertexSetScreenZ(&Vertex2[0], RwIm2DGetNearScreenZ());
RwIm2DVertexSetCameraZ(&Vertex2[0], RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetRecipCameraZ(&Vertex2[0], 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetU(&Vertex2[0], 0.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetV(&Vertex2[0], 0.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetIntRGBA(&Vertex2[0], 255, 255, 255, 255);
RwIm2DVertexSetScreenX(&Vertex2[1], zero);
RwIm2DVertexSetScreenY(&Vertex2[1], ymax);
RwIm2DVertexSetScreenZ(&Vertex2[1], RwIm2DGetNearScreenZ());
RwIm2DVertexSetCameraZ(&Vertex2[1], RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetRecipCameraZ(&Vertex2[1], 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetU(&Vertex2[1], 0.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetV(&Vertex2[1], 1.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetIntRGBA(&Vertex2[1], 255, 255, 255, 255);
RwIm2DVertexSetScreenX(&Vertex2[2], xmax);
RwIm2DVertexSetScreenY(&Vertex2[2], ymax);
RwIm2DVertexSetScreenZ(&Vertex2[2], RwIm2DGetNearScreenZ());
RwIm2DVertexSetCameraZ(&Vertex2[2], RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetRecipCameraZ(&Vertex2[2], 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetU(&Vertex2[2], 1.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetV(&Vertex2[2], 1.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetIntRGBA(&Vertex2[2], 255, 255, 255, 255);
RwIm2DVertexSetScreenX(&Vertex2[3], xmax);
RwIm2DVertexSetScreenY(&Vertex2[3], zero);
RwIm2DVertexSetScreenZ(&Vertex2[3], RwIm2DGetNearScreenZ());
RwIm2DVertexSetCameraZ(&Vertex2[3], RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetRecipCameraZ(&Vertex2[3], 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetU(&Vertex2[3], 1.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetV(&Vertex2[3], 0.0f, 1.0f/RwCameraGetNearClipPlane(cam));
RwIm2DVertexSetIntRGBA(&Vertex2[3], 255, 255, 255, 255);
}
void
CMBlur::MotionBlurRender(RwCamera *cam, uint32 red, uint32 green, uint32 blue, uint32 blur, int32 type)
{
RwRGBA color = { (RwUInt8)red, (RwUInt8)green, (RwUInt8)blue, (RwUInt8)blur };
if(ms_bJustInitialised)
ms_bJustInitialised = false;
else
OverlayRender(cam, pFrontBuffer, color, type);
if(BlurOn){
RwRasterPushContext(pFrontBuffer);
RwRasterRenderFast(RwCameraGetRaster(cam), 0, 0);
RwRasterPopContext();
}
}
void
CMBlur::OverlayRender(RwCamera *cam, RwRaster *raster, RwRGBA color, int32 type)
{
int r, g, b, a;
r = color.red;
g = color.green;
b = color.blue;
a = color.alpha;
DefinedState();
switch(type){
case MBLUR_INTRO1:
r = 0;
g = 255;
b = 0;
a = 128;
break;
case MBLUR_INTRO3:
r = 100;
g = 220;
b = 230;
a = 158;
break;
case MBLUR_INTRO4:
r = 80;
g = 255;
b = 230;
a = 138;
break;
case MBLUR_INTRO6:
r = 255;
g = 60;
b = 60;
a = 200;
break;
case MBLUR_UNUSED:
r = 255;
g = 180;
b = 180;
a = 128;
break;
}
if(!BlurOn){
// gta clamps these to 255 (probably a macro or inlined function)
int ovR = r * 0.6f;
int ovG = g * 0.6f;
int ovB = b * 0.6f;
int ovA = type == MBLUR_SNIPER ? a : a*0.6f;
RwIm2DVertexSetIntRGBA(&Vertex[0], ovR, ovG, ovB, ovA);
RwIm2DVertexSetIntRGBA(&Vertex[1], ovR, ovG, ovB, ovA);
RwIm2DVertexSetIntRGBA(&Vertex[2], ovR, ovG, ovB, ovA);
RwIm2DVertexSetIntRGBA(&Vertex[3], ovR, ovG, ovB, ovA);
}else{
RwIm2DVertexSetIntRGBA(&Vertex2[0], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex[0], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex2[1], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex[1], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex2[2], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex[2], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex2[3], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex[3], r, g, b, a);
}
RwRenderStateSet(rwRENDERSTATETEXTUREFILTER, (void*)rwFILTERNEAREST);
RwRenderStateSet(rwRENDERSTATEFOGENABLE, (void*)FALSE);
RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void*)FALSE);
RwRenderStateSet(rwRENDERSTATEZWRITEENABLE, (void*)FALSE);
RwRenderStateSet(rwRENDERSTATETEXTURERASTER, raster);
RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void*)TRUE);
RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDONE);
RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDONE);
if(BlurOn){
if(type == MBLUR_SNIPER){
RwIm2DVertexSetIntRGBA(&Vertex2[0], r, g, b, 80);
RwIm2DVertexSetIntRGBA(&Vertex2[1], r, g, b, 80);
RwIm2DVertexSetIntRGBA(&Vertex2[2], r, g, b, 80);
RwIm2DVertexSetIntRGBA(&Vertex2[3], r, g, b, 80);
RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDSRCALPHA);
RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDINVSRCALPHA);
// TODO(MIAMI): pBufVertCount = 0;
}else{
RwIm2DVertexSetIntRGBA(&Vertex2[0], r*2, g*2, b*2, 30);
RwIm2DVertexSetIntRGBA(&Vertex2[1], r*2, g*2, b*2, 30);
RwIm2DVertexSetIntRGBA(&Vertex2[2], r*2, g*2, b*2, 30);
RwIm2DVertexSetIntRGBA(&Vertex2[3], r*2, g*2, b*2, 30);
RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDSRCALPHA);
RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDINVSRCALPHA);
RwIm2DRenderIndexedPrimitive(rwPRIMTYPETRILIST, Vertex2, 4, Index, 6);
RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDONE);
RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDONE);
RwIm2DVertexSetIntRGBA(&Vertex2[0], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex[0], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex2[1], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex[1], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex2[2], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex[2], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex2[3], r, g, b, a);
RwIm2DVertexSetIntRGBA(&Vertex[3], r, g, b, a);
RwIm2DRenderIndexedPrimitive(rwPRIMTYPETRILIST, Vertex, 4, Index, 6);
RwIm2DRenderIndexedPrimitive(rwPRIMTYPETRILIST, Vertex2, 4, Index, 6);
}
}
// TODO(MIAMI): drunkness
// TODO(MIAMI): OverlayRenderFx
RwRenderStateSet(rwRENDERSTATEFOGENABLE, (void*)FALSE);
RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void*)TRUE);
RwRenderStateSet(rwRENDERSTATEZWRITEENABLE, (void*)TRUE);
RwRenderStateSet(rwRENDERSTATETEXTURERASTER, nil);
RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void*)FALSE);
RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDSRCALPHA);
RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDINVSRCALPHA);
}
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