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Add support to extend for extendWith, allows copy/mirror/repeat (#3556)

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This commit is contained in:
Tomasz Janowski
2023-02-18 01:01:24 +11:00
committed by GitHub
parent ebf4ccd124
commit 6f0e6f2e65
25 changed files with 134 additions and 65 deletions
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8
src/operations.cc
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@@ -395,11 +395,11 @@ namespace sharp {
* Split into frames, embed each frame, reassemble, and update pageHeight.
*/
VImage EmbedMultiPage(VImage image, int left, int top, int width, int height,
std::vector<double> background, int nPages, int *pageHeight) {
VipsExtend extendWith, std::vector<double> background, int nPages, int *pageHeight) {
if (top == 0 && height == *pageHeight) {
// Fast path; no need to adjust the height of the multi-page image
return image.embed(left, 0, width, image.height(), VImage::option()
->set("extend", VIPS_EXTEND_BACKGROUND)
->set("extend", extendWith)
->set("background", background));
} else if (left == 0 && width == image.width()) {
// Fast path; no need to adjust the width of the multi-page image
@@ -411,7 +411,7 @@ namespace sharp {
// Do the embed on the wide image
image = image.embed(0, top, image.width(), height, VImage::option()
->set("extend", VIPS_EXTEND_BACKGROUND)
->set("extend", extendWith)
->set("background", background));
// Split the wide image into frames
@@ -441,7 +441,7 @@ namespace sharp {
// Embed each frame in the target size
for (int i = 0; i < nPages; i++) {
pages[i] = pages[i].embed(left, top, width, height, VImage::option()
->set("extend", VIPS_EXTEND_BACKGROUND)
->set("extend", extendWith)
->set("background", background));
}