void inline gfxIncreaseBrightness(u32 *line, int coeff)
u32 inline gfxIncreaseBrightness(u32 color, int coeff)
void inline gfxIncreaseBrightness(u32 *line, int coeff){  for(int x = 0; x < 240; x++) {    u32 color = *line;    int r = (color & 0x1F);    int g = ((color >> 5) & 0x1F);    int b = ((color >> 10) & 0x1F);        r = r + (((31 - r) * coeff) >> 4);    g = g + (((31 - g) * coeff) >> 4);    b = b + (((31 - b) * coeff) >> 4);    if(r > 31)      r = 31;    if(g > 31)      g = 31;    if(b > 31)      b = 31;    *line++ = (color & 0xFFFF0000) | (b << 10) | (g << 5) | r;  }}