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authorpommicket <pommicket@gmail.com>2023-09-04 13:54:53 -0400
committerpommicket <pommicket@gmail.com>2023-09-04 14:01:49 -0400
commit7f7c4845e0ad01b229f30769708fad5fe7f72e1e (patch)
treeca784c3c45c1a61aa3276f76422e04e59095f95e /examples/alloc_correct.rs
parent36cc87543dd8a90342aa9d922d9f9fef852df91c (diff)
more tests
Diffstat (limited to 'examples/alloc_correct.rs')
-rw-r--r--examples/alloc_correct.rs14
1 files changed, 14 insertions, 0 deletions
diff --git a/examples/alloc_correct.rs b/examples/alloc_correct.rs
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+++ b/examples/alloc_correct.rs
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+fn main() {
+ let mut png = &include_bytes!("image.png")[..];
+ let header = tiny_png::read_png_header(&mut png).expect("bad PNG");
+ println!("need {} bytes of memory", header.required_bytes());
+ let mut buffer = vec![0; header.required_bytes()];
+ let image = tiny_png::read_png(&mut png, Some(&header), &mut buffer).expect("bad PNG");
+ println!("{}x{} image", image.width(), image.height());
+ let pixels = image.pixels();
+ println!(
+ "top-left pixel is #{:02x}{:02x}{:02x}",
+ pixels[0], pixels[1], pixels[2]
+ );
+ // (^ this only makes sense for RGB 8bpc images)
+}