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minors fixes

This commit is contained in:
Sylvain PILLOT 2023-03-17 21:07:12 +01:00
parent a41c44988b
commit e4653c0ace
1 changed files with 16 additions and 8 deletions
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24
src/gray/engine_fxascg.c
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@ -233,9 +233,6 @@ int dgray(int mode)
}
#define C_RGB(r,g,b) (((r) << 11) | ((g) << 6) | (b))
inline gdrawupscale( int x, int y, int color )
{
int u=y*396*3;
@ -243,10 +240,11 @@ inline gdrawupscale( int x, int y, int color )
uint16_t colorcg;
if (color==C_WHITE) colorcg=0xFFFF;
else if (color==C_LIGHT) colorcg=C_RGB(20,20,20);
else if (color==C_DARK) colorcg=C_RGB(10,10,10);
else colorcg=0x0000;
if (color==0b00) colorcg=0xFFFF;
else if (color==0b01) colorcg=0xAD55;
else if (color==0b10) colorcg=0x528A;
else if (color==0b11) colorcg=0x0000;
else color=0xf800; // unrecognized pixels are red
int baseindex = (396*16+6+v+u); // 16 lines on top/bottom remain black and 6 columns on left/right remain black
cg_vram_gray[baseindex] = colorcg;
@ -295,11 +293,21 @@ int gupdate(void)
uint32_t *light, *dark;
dgray_getvram(&light, &dark);
for( int j=0; j<DHEIGHT; j++ ) // 64 lines
{
for( int i=0; i<DWIDTH; i++ ) // 128 column
{
gdrawupscale( i, j, ggetpixel(i,j) ); // really not optimised; just to check if OK
int offset = (j << 2) + (i >> 5);
uint32_t mask = 1 << (~i & 31);
int l = (light[offset] & mask) !=0 ? 1 : 0;
int d = (dark [offset] & mask) !=0 ? 1 : 0;
int color = (d << 1) | l;
gdrawupscale( i, j, color ); // really not optimised; just to check if OK
}
}