Sprite *Blitter_16bppSimple::Encode(const SpriteLoader::Sprite *sprite, AllocatorProc *allocator)
{
Pixel *dst;
Sprite *dest_sprite = (Sprite *)allocator(sizeof(*dest_sprite) + (size_t)sprite->height * (size_t)sprite->width * sizeof(Pixel));
dest_sprite->height = sprite->height;
dest_sprite->width = sprite->width;
dest_sprite->x_offs = sprite->x_offs;
dest_sprite->y_offs = sprite->y_offs;
dst = (Pixel *)dest_sprite->data;
SpriteLoader::CommonPixel *src = (SpriteLoader::CommonPixel *)sprite->data;
for (int i = 0; i < sprite->height * sprite->width; i++) {
if (src->m == 0) {
dst[i].c = To16(src->r, src->g, src->b);
dst[i].a = src->a / 16;
dst[i].m = 0;
dst[i].v = 0;
} else {
/* Get brightest value */
uint8 rgb_max = max(src->r, max(src->g, src->b));
#if 0
/* Pre-convert the mapping channel to a RGB value,
use 32bpp AdjustBrightness() variant for better colors,
because this function is not called each frame */
if (rgb_max == 0) rgb_max = Blitter_32bppBase::DEFAULT_BRIGHTNESS;
dst[i].c = To16(Blitter_32bppBase::AdjustBrightness(LookupColourInPalette32(src->m), rgb_max));
dst[i].v = rgb_max / 16;
#endif
rgb_max /= 16;
/* Black pixel (8bpp or old 32bpp image), so use default value */
if (rgb_max == 0) rgb_max = DEFAULT_BRIGHTNESS;
/* Pre-convert the mapping channel to a RGB value,
use 32bpp AdjustBrightness() variant for better colors,
because this function is not called each frame */
dst[i].c = AdjustBrightness(LookupColourInPalette(src->m), rgb_max);
dst[i].v = rgb_max;
dst[i].a = src->a / 16;
dst[i].m = src->m;
}
src++;
}
return dest_sprite;
}
Coord DrawLab::fromMilli(MCoord x) const
{
return To16( IntRShift<MCoord>(x+MPoint::Half,MPoint::Precision-cfg.zoom_deg) );
}