/**
 * Scales an Image
 *
 * @pre image != NULL
 * @param image - the input image
 * @returns the scaled image
 * @param sW - the scale width factor
 * @param sH - the scale height factor
 */
extern Image *scaleImage(Image *image, float sW, float sH);






Image *scaleImage(Image *image, float sW, float sH)
{
    Image *out = (Image*)malloc(sizeof(Image));
    if (!out) return NULL;

    out->imageWidth  = image->imageWidth*sW;
    out->imageHeight = image->imageHeight*sH;
    out->textureWidth  = getNextPower2(out->imageWidth);
    out->textureHeight = getNextPower2(out->imageHeight);

    out->data = (Color*) memalign(16, out->textureWidth * out->textureHeight * sizeof(Color));
    if (!image->data) {free(out); return NULL;}

    memset(out->data, 0, out->textureWidth * out->textureHeight * sizeof(Color));

    int x, y;
    for (y = 0; y < image->imageHeight; y++) {
        for (x = 0; x < image->imageWidth; x++) {
            out->data[(x*sW) + (y*sH) * out->textureWidth] |= image->data[x + y * image->textureWidth];
        }
    }

    return out;
}