fix(image): enable iPhone PNG conversion in nvgCreateImageMem

chentong-net · chentong-net · commit 5395a44be080 · 2026-02-19T21:14:28.000+08:00
diff --git a/src/nanovg.c b/src/nanovg.c
@@ -814,6 +814,8 @@ int nvgCreateImage(NVGcontext* ctx, const char* filename, int imageFlags)
 int nvgCreateImageMem(NVGcontext* ctx, int imageFlags, unsigned char* data, int ndata)
 {
 	int w, h, n, image;
+	stbi_set_unpremultiply_on_load(1);
+	stbi_convert_iphone_png_to_rgb(1);
 	unsigned char* img = stbi_load_from_memory(data, ndata, &w, &h, &n, 4);
 	if (img == NULL) {
 //		printf("Failed to load %s - %s\n", filename, stbi_failure_reason());

Original file line number	Diff line number	Diff line change
`@@ -814,6 +814,8 @@ int nvgCreateImage(NVGcontext* ctx, const char* filename, int imageFlags)`
`814`	`814`	`int nvgCreateImageMem(NVGcontext* ctx, int imageFlags, unsigned char* data, int ndata)`
`815`	`815`	`{`
`816`	`816`	`int w, h, n, image;`
	`817`	`+ stbi_set_unpremultiply_on_load(1);`
	`818`	`+ stbi_convert_iphone_png_to_rgb(1);`
`817`	`819`	`unsigned char* img = stbi_load_from_memory(data, ndata, &w, &h, &n, 4);`
`818`	`820`	`if (img == NULL) {`
`819`	`821`	`// printf("Failed to load %s - %s\n", filename, stbi_failure_reason());`