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fastened masterbrightness on max brighten(=allwhite)/max darken(=allblack)

This commit is contained in:
mightymax 2007-01-10 13:25:26 +00:00
parent f75f24b53d
commit d166860a5f
1 changed files with 42 additions and 27 deletions
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69
desmume/src/GPU.h
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@ -419,22 +419,29 @@ static INLINE void GPU_ligne(Screen * screen, u16 l)
masterBrightFactor = masterBrightFactor > 16 ? 16 : masterBrightFactor;
if (!masterBrightFactor) break ; /* when we wont do anything, we dont need to loop */
for(i16 = 0; i16 < 256; ++i16)
if (masterBrightFactor == 16)
{
/* the formular would create only white, as (r + (31-r)) = 31 */
/* white = enable all bits */
memset(dst,0xFF, 256*sizeof(COLOR)) ;
} else
{
COLOR dstColor;
dstColor.val = T1ReadWord(dst, i16 << 1);
unsigned int r,g,b; // get components, 5bit each
r = dstColor.bitfield.red;
g = dstColor.bitfield.green;
b = dstColor.bitfield.blue;
// Bright up and clamp to 5bit
dstColor.bitfield.red = min(31,(r + ((31-r)*masterBrightFactor)/16));
dstColor.bitfield.green = min(31,(g + ((31-g)*masterBrightFactor)/16));
dstColor.bitfield.blue = min(31,(b + ((31-b)*masterBrightFactor)/16));
T2WriteWord (dst, i16 << 1, dstColor.val);
}
for(i16 = 0; i16 < 256; ++i16)
{
COLOR dstColor;
dstColor.val = T1ReadWord(dst, i16 << 1);
unsigned int r,g,b; // get components, 5bit each
r = dstColor.bitfield.red;
g = dstColor.bitfield.green;
b = dstColor.bitfield.blue;
// Bright up and clamp to 5bit
dstColor.bitfield.red = min(31,(r + ((31-r)*masterBrightFactor)/16));
dstColor.bitfield.green = min(31,(g + ((31-g)*masterBrightFactor)/16));
dstColor.bitfield.blue = min(31,(b + ((31-b)*masterBrightFactor)/16));
T2WriteWord (dst, i16 << 1, dstColor.val);
}
}
break;
}
@ -452,20 +459,28 @@ static INLINE void GPU_ligne(Screen * screen, u16 l)
masterBrightFactor = masterBrightFactor > 16 ? 16 : masterBrightFactor;
if (!masterBrightFactor) break ; /* when we wont do anything, we dont need to loop */
for(i16 = 0; i16 < 256; ++i16)
if (masterBrightFactor == 16)
{
COLOR dstColor;
dstColor.val = T1ReadWord(dst, i16 << 1);
unsigned int r,g,b; // get components, 5bit each
r = dstColor.bitfield.red;
g = dstColor.bitfield.green;
b = dstColor.bitfield.blue;
// Bright up and clamp to 5bit
dstColor.bitfield.red = min(31,(r - (r*masterBrightFactor)/16));
dstColor.bitfield.green = min(31,(g - (g*masterBrightFactor)/16));
dstColor.bitfield.blue = min(31,(b - (b*masterBrightFactor)/16));
T2WriteWord (dst, i16 << 1, dstColor.val);
/* the formular would create only black, as (r - r) = 0 */
/* black = disable all bits */
memset(dst,0, 256*sizeof(COLOR)) ;
} else
{
for(i16 = 0; i16 < 256; ++i16)
{
COLOR dstColor;
dstColor.val = T1ReadWord(dst, i16 << 1);
unsigned int r,g,b; // get components, 5bit each
r = dstColor.bitfield.red;
g = dstColor.bitfield.green;
b = dstColor.bitfield.blue;
// Bright up and clamp to 5bit
dstColor.bitfield.red = min(31,(r - (r*masterBrightFactor)/16));
dstColor.bitfield.green = min(31,(g - (g*masterBrightFactor)/16));
dstColor.bitfield.blue = min(31,(b - (b*masterBrightFactor)/16));
T2WriteWord (dst, i16 << 1, dstColor.val);
}
}
break;
}