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effects.cpp
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effects.cpp
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#include <mod/amlmod.h>
#include <mod/logger.h>
#include <mod/config.h>
#include <gtasa_things.h>
#include <effects.h>
RwRaster* (*RwRasterCreate)(RwInt32 width, RwInt32 height, RwInt32 depth, RwInt32 flags) = NULL;
RwUInt8* (*RwRasterLock)(RwRaster*, unsigned char, int) = NULL;
void (*RwRasterUnlock)(RwRaster*) = NULL;
void (*ImmediateModeRenderStatesStore)() = NULL;
void (*ImmediateModeRenderStatesSet)() = NULL;
void (*ImmediateModeRenderStatesReStore)() = NULL;
void (*RwRenderStateSet)(RwRenderState, void*) = NULL;
void (*DrawQuadSetUVs)(float,float,float,float,float,float,float,float) = NULL;
void (*PostEffectsDrawQuad)(float,float,float,float,uint8_t,uint8_t,uint8_t,uint8_t,RwRaster*) = NULL;
void (*DrawQuadSetDefaultUVs)(void) = NULL;
uint8_t (*CamNoRain)() = NULL;
uint8_t (*PlayerNoRain)() = NULL;
RsGlobalType* RsGlobal = NULL;
int *pnGrainStrength = NULL;
int *currArea = NULL;
bool *pbGrainEnable = NULL;
bool* pbRainEnable = NULL;
bool *pbInCutscene = NULL;
bool *pbNightVision = NULL;
bool *pbInfraredVision = NULL;
float* pfWeatherRain = NULL;
float* pfWeatherUnderwaterness = NULL;
CCamera* effects_TheCamera = NULL;
unsigned char grainIntensity;
RwRaster *grainRaster = NULL;
// VU style random number generator -- taken from pcsx2
uint32_t R;
void vrinit(uint32_t x) { R = 0x3F800000 | x & 0x007FFFFF; }
void vradvance(void)
{
int x = (R >> 4) & 1;
int y = (R >> 22) & 1;
R <<= 1;
R ^= x ^ y;
R = (R & 0x7FFFFF) | 0x3F800000;
}
inline uint32_t vrget(void) { return R; }
inline uint32_t vrnext(void) { vradvance(); return R; }
void GrainEffect(int strength, bool generate)
{
if(generate)
{
RwUInt8 *pixels = RwRasterLock(grainRaster, 0, 1);
vrinit(rand());
int x = vrget();
for(int i = 0; i < 64*64; ++i)
{
*pixels++ = x;
*pixels++ = x;
*pixels++ = x;
*pixels++ = x & strength;
x = vrnext();
}
RwRasterUnlock(grainRaster);
}
ImmediateModeRenderStatesStore();
ImmediateModeRenderStatesSet();
RwRenderStateSet(rwRENDERSTATETEXTUREADDRESS, (void*)rwTEXTUREADDRESSWRAP);
RwRenderStateSet(rwRENDERSTATETEXTUREFILTER, (void*)rwFILTERLINEAR);
float umin = 0.0f;
float vmin = 0.0f;
float umax = (float)(GRAIN_EFFECT_SCALE) * 5.0f * RsGlobal->maximumWidth / 640.0f;
float vmax = (float)(GRAIN_EFFECT_SCALE) * 7.0f * RsGlobal->maximumHeight / 448.0f;
DrawQuadSetUVs(umin, vmin, umax, vmin, umax, vmax, umin, vmax);
PostEffectsDrawQuad(0.0, 0.0, RsGlobal->maximumWidth, RsGlobal->maximumHeight, 0xFFu, 0xFFu, 0xFFu, grainIntensity, grainRaster);
DrawQuadSetDefaultUVs();
ImmediateModeRenderStatesReStore();
}
// Original
void (*RenderFx)(uintptr_t, uintptr_t, unsigned char) = NULL;
void (*RenderWaterCannons)() = NULL;
uintptr_t pg_fx;
bool* pbCCTV;
bool* pbFog = NULL;
void (*RenderWaterFog)() = NULL;
void (*RenderMovingFog)() = NULL;
void (*RenderVolumetricClouds)() = NULL;
void (*RenderScreenFogPostEffect)() = NULL;
void (*RenderCCTVPostEffect)() = NULL;
// Hooks
DECL_HOOKv(InitialisePostEffects)
{
InitialisePostEffects();
grainRaster = RwRasterCreate(64, 64, 32, rwRASTERTYPETEXTURE | rwRASTERFORMAT8888);
}
// PostEffects
uintptr_t pGTASA_MobileEffectsRender = 0;
int nRainGrain = 0;
extern "C" void MobileEffectsRender()
{
if(pbFog != NULL && *pbFog) RenderScreenFogPostEffect(); // CPostEffects::Fog == Screen Fog
if(grainRaster != NULL)
{
if(!*pbInCutscene)
{
if(*pbNightVision)
{
GrainEffect(GRAIN_NIGHTVISION_STRENGTH, true);
}
else if(*pbInfraredVision)
{
GrainEffect(GRAIN_INFRAREDVISION_STRENGTH, true);
}
}
if(*pbRainEnable)
{
float scaled = *pfWeatherRain * 128.0f;
int tempo = nRainGrain;
if(nRainGrain < scaled) tempo = ++nRainGrain;
else if(nRainGrain > scaled) --tempo;
nRainGrain = tempo < 0 ? 0 : tempo;
if(!CamNoRain() && !PlayerNoRain() && *pfWeatherUnderwaterness <= 0.0f && !*currArea)
{
CVector& cameraPos = effects_TheCamera->GetPosition();
if(cameraPos.z <= 900.0f)
{
GrainEffect(0.25f * nRainGrain, true);
}
}
}
if(*pbGrainEnable) GrainEffect(*pnGrainStrength, true);
}
// Original
if(*pbCCTV) RenderCCTVPostEffect(); // CCTV
}
uintptr_t pGTASA_EffectsRender = 0;
uintptr_t* pdword_952880;
extern "C" void EffectsRender()
{
RenderFx(pg_fx, *pdword_952880, 0);
RenderWaterCannons();
if(RenderWaterFog) RenderWaterFog();
if(RenderMovingFog) RenderMovingFog();
if(RenderVolumetricClouds) RenderVolumetricClouds();
}
__attribute__((optnone)) __attribute__((naked)) void MobileEffectsRender_stub(void)
{
asm volatile(
"push {r0-r11}\n"
"bl MobileEffectsRender\n"
);
asm volatile(
"mov r12, %0\n"
"pop {r0-r11}\n"
"bx r12\n"
:: "r" (pGTASA_MobileEffectsRender));
}
__attribute__((optnone)) __attribute__((naked)) void EffectsRender_stub(void)
{
asm volatile(
"push {r0-r11}\n"
"bl EffectsRender\n"
);
asm volatile(
"mov r12, %0\n"
"pop {r0-r11}\n"
"bx r12\n"
:: "r" (pGTASA_EffectsRender));
}
uintptr_t retTo;
extern ConfigEntry* pWaterFogBlocksLimits;
extern "C" void SetUpWaterFog()
{
if(*(int*)(pGTASA + 0xA1DC9C) >= pWaterFogBlocksLimits->GetInt()) retTo = pGTASA + 0x59A0DC + 0x1;
else retTo = pGTASA + 0x599FC0 + 0x1;
}
__attribute__((optnone)) __attribute__((naked)) void SetUpWaterFog_stub(void)
{
asm volatile(
"push {r0-r11}\n"
"bl SetUpWaterFog\n"
);
asm volatile(
"mov r12, %0\n"
"pop {r0-r11}\n"
"bx r12\n"
:: "r"(retTo) );
}