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No, car go road
This commit is contained in:
Robert Garrett
2024-05-09 16:28:23 -05:00
parent 41d547f3ed
commit 761beac5fd
1 changed files with 54 additions and 23 deletions
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67
src/main.rs
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@@ -160,7 +160,10 @@ where
#[cfg(test)] #[cfg(test)]
mod test { mod test {
use super::*; use super::*;
impl <I> Decoder <I> where I: Iterator<Item=u8> { impl<I> Decoder<I>
where
I: Iterator<Item = u8>,
{
// A hack to unit test the index lookup behavior. A partial test can be done // A hack to unit test the index lookup behavior. A partial test can be done
// to verify the basic indexing principles by preloading a known buffer and // to verify the basic indexing principles by preloading a known buffer and
// then extracting back-referenced data out of it. A complete test should // then extracting back-referenced data out of it. A complete test should
@@ -479,26 +482,38 @@ mod test {
#[test] #[test]
fn decoder_prev_pixel_verify() { fn decoder_prev_pixel_verify() {
let compressed = [ let compressed = [
QOI_OP_RGB, 0x10, 0x10, 0x10, QOI_OP_RGB,
QOI_OP_RGBA, 0x20, 0x20, 0x20, 0x20, 0x10,
0x10,
0x10,
QOI_OP_RGBA,
0x20,
0x20,
0x20,
0x20,
(QOI_OP_INDEX | 1), (QOI_OP_INDEX | 1),
(QOI_OP_DIFF | 0b0011_1111), (QOI_OP_DIFF | 0b0011_1111),
(QOI_OP_LUMA | 0b0011_1111), 0b1111_1111, (QOI_OP_LUMA | 0b0011_1111),
0b1111_1111,
(QOI_OP_RUN | 2), (QOI_OP_RUN | 2),
QOI_OP_RGBA, 0xFF, 0xFF, 0xFF, 0xFF, QOI_OP_RGBA,
0xFF,
0xFF,
0xFF,
0xFF,
]; ];
let expected = [ let expected = [
PixelRGBA::new(0, 0, 0, 0xFF), // init PixelRGBA::new(0, 0, 0, 0xFF), // init
PixelRGBA::new(0x10, 0x10, 0x10, 0xFF), // RGB PixelRGBA::new(0x10, 0x10, 0x10, 0xFF), // RGB
PixelRGBA::new(0x20, 0x20, 0x20, 0x20), // RGBA PixelRGBA::new(0x20, 0x20, 0x20, 0x20), // RGBA
PixelRGBA::new(0, 0, 0, 0), // INDEX -- this doubles as a small test for the backbuffer operation PixelRGBA::new(0, 0, 0, 0), // INDEX -- this doubles as a small test for the backbuffer operation
PixelRGBA::new(0x1, 0x1, 0x1, 0x0), // DIFF PixelRGBA::new(0x1, 0x1, 0x1, 0x0), // DIFF
PixelRGBA::new(0x27, 0x20, 0x27, 0x0), // LUMA PixelRGBA::new(0x27, 0x20, 0x27, 0x0), // LUMA
PixelRGBA::new(0x27, 0x20, 0x27, 0x0), // RUN 1 PixelRGBA::new(0x27, 0x20, 0x27, 0x0), // RUN 1
PixelRGBA::new(0x27, 0x20, 0x27, 0x0), // RUN 2 PixelRGBA::new(0x27, 0x20, 0x27, 0x0), // RUN 2
PixelRGBA::new(0x27, 0x20, 0x27, 0x0), // RUN 3 PixelRGBA::new(0x27, 0x20, 0x27, 0x0), // RUN 3
PixelRGBA::new(0xFF, 0xFF, 0xFF, 0xFF) PixelRGBA::new(0xFF, 0xFF, 0xFF, 0xFF),
]; ];
let mut decoder = Decoder::new(compressed.into_iter()); let mut decoder = Decoder::new(compressed.into_iter());
@@ -516,14 +531,30 @@ mod test {
#[test] #[test]
fn decoder_backbuffer_verify() { fn decoder_backbuffer_verify() {
let compressed = [ let compressed = [
QOI_OP_RGB, 0x10, 0x10, 0x10, QOI_OP_RGB,
QOI_OP_RGBA, 0x20, 0x20, 0x20, 0x20, 0x10,
QOI_OP_RGBA, 0x03, 0x01, 0x01, 0x04, // filler to populate backbuffer[1] for the next OP_INDEX 0x10,
0x10,
QOI_OP_RGBA,
0x20,
0x20,
0x20,
0x20,
QOI_OP_RGBA,
0x03,
0x01,
0x01,
0x04, // filler to populate backbuffer[1] for the next OP_INDEX
(QOI_OP_INDEX | 1), (QOI_OP_INDEX | 1),
(QOI_OP_DIFF | 0b0011_1111), // + Pix (1, 1, 1, 0) (QOI_OP_DIFF | 0b0011_1111), // + Pix (1, 1, 1, 0)
(QOI_OP_LUMA | 0b0011_1111), 0b1111_1111, // + Pix (38, 31, 38) (QOI_OP_LUMA | 0b0011_1111),
0b1111_1111, // + Pix (38, 31, 38)
(QOI_OP_RUN | 2), (QOI_OP_RUN | 2),
QOI_OP_RGBA, 0xFF, 0xFF, 0xFF, 0xFF, QOI_OP_RGBA,
0xFF,
0xFF,
0xFF,
0xFF,
]; ];
// these are the indices where we're expecting each pixel to land. // these are the indices where we're expecting each pixel to land.
// Each pixel gets put into this backbuffer as it's en/de-coded. // Each pixel gets put into this backbuffer as it's en/de-coded.