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draw_stripe : Domptage du gremelin

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attilavs2 2024-09-01 17:31:46 +02:00
parent f4cec3a625
commit 1f32c30da6
2 changed files with 4 additions and 1 deletions
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3
src/moteur.c
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@ -180,6 +180,7 @@ inline void __attribute__((always_inline)) draw_stripe(image_t *tex, int texSamp
: "=r" (oneConst) : "=r" (oneConst)
: "r" (oneConst) : "r" (oneConst)
); );
register int maxConst asm("r13") = viewport_w*viewport_h;
for(int texPos = texSampleY; texPos < 64; ++texPos){ for(int texPos = texSampleY; texPos < 64; ++texPos){
if(screenPos >= -texSize){ if(screenPos >= -texSize){
int vrampos = ffloor(screenPos)*vramSize+x; int vrampos = ffloor(screenPos)*vramSize+x;
@ -189,6 +190,8 @@ inline void __attribute__((always_inline)) draw_stripe(image_t *tex, int texSamp
gint_vram[vrampos] = pix; gint_vram[vrampos] = pix;
vrampos += vramSize; vrampos += vramSize;
oldPos += oneConst; oldPos += oneConst;
if(vrampos >= maxConst)
return;
}while(oldPos < screenPos+texSize); }while(oldPos < screenPos+texSize);
} }
screenPos += texSize; screenPos += texSize;

2
src/moteur.h
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@ -10,7 +10,7 @@
#define screen_w 396 #define screen_w 396
#define screen_h 224 #define screen_h 224
#define viewport_w 396 #define viewport_w 396
#define viewport_h 224 #define viewport_h 200
#define max_dist fix(32) //en tuiles << 16, actuellement 32 #define max_dist fix(32) //en tuiles << 16, actuellement 32
#define TINDEX_S 256 #define TINDEX_S 256