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Work on ImageResizeCanvas()

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This commit is contained in:
Ray 2019-03-15 13:34:09 +01:00
parent cbfa35a39e
commit 29d1323bd1
1 changed files with 47 additions and 14 deletions
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61
src/textures.c
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@ -1399,22 +1399,55 @@ void ImageResizeNN(Image *image,int newWidth,int newHeight)
void ImageResizeCanvas(Image *image, int newWidth,int newHeight, int offsetX, int offsetY, Color color)
{
// TODO: Review different scaling situations
if ((newWidth > image->width) && (newHeight > image->height))
if ((newWidth != image->width) || (newHeight != image->height))
{
Image imTemp = GenImageColor(newWidth, newHeight, color);
Rectangle srcRec = { 0.0f, 0.0f, (float)image->width, (float)image->height };
Rectangle dstRec = { (float)offsetX, (float)offsetY, (float)srcRec.width, (float)srcRec.height };
if ((newWidth > image->width) && (newHeight > image->height))
{
Image imTemp = GenImageColor(newWidth, newHeight, color);
Rectangle srcRec = { 0.0f, 0.0f, (float)image->width, (float)image->height };
Rectangle dstRec = { (float)offsetX, (float)offsetY, (float)srcRec.width, (float)srcRec.height };
ImageDraw(&imTemp, *image, srcRec, dstRec);
ImageFormat(&imTemp, image->format);
UnloadImage(*image);
*image = imTemp;
}
else if ((newWidth < image->width) && (newHeight < image->height))
{
Rectangle crop = { (float)offsetX, (float)offsetY, newWidth, newHeight };
ImageCrop(image, crop);
ImageDraw(&imTemp, *image, srcRec, dstRec);
ImageFormat(&imTemp, image->format);
UnloadImage(*image);
*image = imTemp;
}
else if ((newWidth < image->width) && (newHeight < image->height))
{
Rectangle crop = { (float)offsetX, (float)offsetY, newWidth, newHeight };
ImageCrop(image, crop);
}
else // One side is bigger and the other is smaller
{
Image imTemp = GenImageColor(newWidth, newHeight, color);
Rectangle srcRec = { 0.0f, 0.0f, (float)image->width, (float)image->height };
Rectangle dstRec = { (float)offsetX, (float)offsetY, (float)newWidth, (float)newHeight };
if (newWidth < image->width)
{
srcRec.x = offsetX;
srcRec.width = newWidth;
dstRec.x = 0.0f;
}
if (newHeight < image->height)
{
srcRec.y = offsetY;
srcRec.height = newHeight;
dstRec.y = 0.0f;
}
// TODO: ImageDraw() could be buggy?
ImageDraw(&imTemp, *image, srcRec, dstRec);
ImageFormat(&imTemp, image->format);
UnloadImage(*image);
*image = imTemp;
}
}
}