X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=render%2Fimage.c;h=e6e8b8b932f185a9d768592f8a83d8e9cfdca761;hb=1d267613a3c3423d00150a9ba778f229385cd03e;hp=f878933274d88a25345c261269e21153abcb6ab6;hpb=2442cdfd85e5229c7ee4ac49ca66a7d55ffcb919;p=chaz%2Fopenbox diff --git a/render/image.c b/render/image.c index f8789332..e6e8b8b9 100644 --- a/render/image.c +++ b/render/image.c @@ -142,14 +142,18 @@ void RrImageDraw(RrPixel32 *target, RrTextureRGBA *rgba, source = rgba->data; } - /* copy source -> dest, and apply the alpha channel */ + /* copy source -> dest, and apply the alpha channel. + + center the image if it is smaller than the area */ col = 0; num_pixels = dw * dh; - dest = target + area->x + target_w * area->y; + dest = target + area->x + (area->width - dw) / 2 + + (target_w * (area->y + (area->height - dh) / 2)); while (num_pixels-- > 0) { guchar alpha, r, g, b, bgr, bgg, bgb; - alpha = *source >> RrDefaultAlphaOffset; + /* apply the rgba's opacity as well */ + alpha = (((*source >> RrDefaultAlphaOffset) * rgba->alpha) >> 8)&0xff; r = *source >> RrDefaultRedOffset; g = *source >> RrDefaultGreenOffset; b = *source >> RrDefaultBlueOffset;