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Replace core:image's sidecar with explicit metadata_ptr and metadata_type.

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To unpack, use:
```odin

v: ^png.Info;

if img.metadata_ptr != nil && img.metadata_type == png.Info {
	v = (^png.Info)(img.metadata_ptr);
	...
}
```
This commit is contained in:
Jeroen van Rijn
2021-06-21 16:32:42 +02:00
parent 18471f358e
commit e036a321a0
3 changed files with 23 additions and 23 deletions
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core/image/png/example.odin
+3 -3
View File
@@ -14,7 +14,7 @@ import "core:os"
main :: proc() {
file: string;
options := image.Options{};
options := image.Options{.return_metadata};
err: compress.Error;
img: ^image.Image;
@@ -27,11 +27,11 @@ main :: proc() {
fmt.printf("Trying to read PNG file %v returned %v\n", file, err);
} else {
v: ^png.Info;
ok: bool;
fmt.printf("Image: %vx%vx%v, %v-bit.\n", img.width, img.height, img.channels, img.depth);
if v, ok = img.sidecar.(^png.Info); ok {
if img.metadata_ptr != nil && img.metadata_type == png.Info {
v = (^png.Info)(img.metadata_ptr);
// Handle ancillary chunks as you wish.
// We provide helper functions for a few types.
for c in v.chunks {