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Merge pull request #15 from G-e-n-e-v-e-n-s-i-S/combine-blend-alpha

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Update combine_image.cpp
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GenevensiS
2024-09-17 10:26:50 +02:00
committed by GitHub
parent 4605372a6a 488e54fed2
commit db2f1de966
1 changed files with 2 additions and 6 deletions
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src/gfx/combine_image.cpp
+2 -6
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@@ -311,12 +311,8 @@ void combine_image_do(Image& a, Image b) {
void combine_image(Image& a, const Image& b, ImageCombine combine) {
// Images must have same size
assert(a.GetWidth() == b.GetWidth());
assert(a.GetHeight() == b.GetHeight());
// Copy alpha channel?
if (b.HasAlpha()) {
if (!a.HasAlpha()) a.InitAlpha();
memcpy(a.GetAlpha(), b.GetAlpha(), a.GetWidth() * a.GetHeight());
if (a.GetWidth() != b.GetWidth() || a.GetHeight() != b.GetHeight()) {
throw Error(_ERROR_("images used for combine blending must have the same size"));
}
// Combine image data, by dispatching to combineImageDo
switch(combine) {