diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
| commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
| tree | f435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/png/apng | |
| parent | Initial commit. (diff) | |
| download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip | |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/png/apng')
92 files changed, 2715 insertions, 0 deletions
diff --git a/testing/web-platform/tests/png/apng/acTL-plays-one.html b/testing/web-platform/tests/png/apng/acTL-plays-one.html new file mode 100644 index 0000000000..9012e0e56a --- /dev/null +++ b/testing/web-platform/tests/png/apng/acTL-plays-one.html @@ -0,0 +1,34 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, plays</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-blue-rectangle-one-ref.html"> +<meta name="assert" content="num_plays indicates the number of times that this animation should play. If nonzero, the animation should come to rest on the final frame at the end of the last play."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 3000); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if this flashes yellow for one second, then stays blue forever</p> + <div class="test"><img src="support/031.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/acTL-plays-two.html b/testing/web-platform/tests/png/apng/acTL-plays-two.html new file mode 100644 index 0000000000..147b57957e --- /dev/null +++ b/testing/web-platform/tests/png/apng/acTL-plays-two.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, plays</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-blue-rectangle-ref.html"> +<meta name="assert" content="num_plays indicates the number of times that this animation should play. If nonzero, the animation should come to rest on the final frame at the end of the last play."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 5000); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if this flashes yellow for one second, then + blue for one second, then yellow for one second, then blue forever.</p> + <div class="test"><img src="support/032.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/apng-blue-rect-checkerboard-ref.html b/testing/web-platform/tests/png/apng/apng-blue-rect-checkerboard-ref.html new file mode 100644 index 0000000000..3058aa633f --- /dev/null +++ b/testing/web-platform/tests/png/apng/apng-blue-rect-checkerboard-ref.html @@ -0,0 +1,24 @@ +<!DOCTYPE html> +<html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, dispose ops and regions</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see solid blue rectangle containing a smaller region with a grey checkerboard, and no red.</p> + <div class="test"><img src="support/blue-with-hole.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/apng-blue-rectangle-one-ref.html b/testing/web-platform/tests/png/apng/apng-blue-rectangle-one-ref.html new file mode 100644 index 0000000000..f749fc30ea --- /dev/null +++ b/testing/web-platform/tests/png/apng/apng-blue-rectangle-one-ref.html @@ -0,0 +1,22 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, plays</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if this flashes yellow for one second, then stays blue forever</p> + <div class="test"><img src="support/blue.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/apng-blue-rectangle-ref.html b/testing/web-platform/tests/png/apng/apng-blue-rectangle-ref.html new file mode 100644 index 0000000000..51bae3e107 --- /dev/null +++ b/testing/web-platform/tests/png/apng/apng-blue-rectangle-ref.html @@ -0,0 +1,23 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, plays</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if this flashes yellow for one second, then + blue for one second, then yellow for one second, then blue forever.</p> + <div class="test"><img src="support/blue.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/apng-checkerboard-ref.html b/testing/web-platform/tests/png/apng/apng-checkerboard-ref.html new file mode 100644 index 0000000000..660a845bba --- /dev/null +++ b/testing/web-platform/tests/png/apng/apng-checkerboard-ref.html @@ -0,0 +1,24 @@ +<!DOCTYPE html> +<html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, dispose ops</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a grey checkerboard, and no red.</p> + <div class="test"></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/apng-darkblue-rectangle-ref.html b/testing/web-platform/tests/png/apng/apng-darkblue-rectangle-ref.html new file mode 100644 index 0000000000..dc781397a8 --- /dev/null +++ b/testing/web-platform/tests/png/apng/apng-darkblue-rectangle-ref.html @@ -0,0 +1,22 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, bit depth</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a dark blue rectangle, and no red.</p> + <div class="test"><img src="support/darkblue.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/apng-graywhite-rectangle-ref.html b/testing/web-platform/tests/png/apng/apng-graywhite-rectangle-ref.html new file mode 100644 index 0000000000..49dfaa37b4 --- /dev/null +++ b/testing/web-platform/tests/png/apng/apng-graywhite-rectangle-ref.html @@ -0,0 +1,8 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, bit depth. 8bit grayscale</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<body> + <p>Test passes if you see a gray rectangle, with a white rectangle in the middle, and no red.</p> + <div class="test"><img src="support/gray-white.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/apng-lime-rectangle-ref.html b/testing/web-platform/tests/png/apng/apng-lime-rectangle-ref.html new file mode 100644 index 0000000000..6cc29d40d4 --- /dev/null +++ b/testing/web-platform/tests/png/apng/apng-lime-rectangle-ref.html @@ -0,0 +1,8 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/lime.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/apng-solidgray-rectangle-ref.html b/testing/web-platform/tests/png/apng/apng-solidgray-rectangle-ref.html new file mode 100644 index 0000000000..edc4230287 --- /dev/null +++ b/testing/web-platform/tests/png/apng/apng-solidgray-rectangle-ref.html @@ -0,0 +1,8 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, bit depth. blended 8bit grayscale with alpha</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<body> + <p>Test passes if you see a solid gray rectangle, and no red.</p> + <div class="test"><img src="support/solid-gray.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/apng-solidlime-rectangle-ref.html b/testing/web-platform/tests/png/apng/apng-solidlime-rectangle-ref.html new file mode 100644 index 0000000000..26326caebe --- /dev/null +++ b/testing/web-platform/tests/png/apng/apng-solidlime-rectangle-ref.html @@ -0,0 +1,8 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, bit depth. 1-bit palette</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<body> + <p>Test passes if you see a solid lime green rectangle, and no red.</p> + <div class="test"><img src="support/lime.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/fDAT-inherits-cICP.html b/testing/web-platform/tests/png/apng/fDAT-inherits-cICP.html new file mode 100644 index 0000000000..14f0e501e7 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fDAT-inherits-cICP.html @@ -0,0 +1,22 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, fdAT inherits colorspace from cICP</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#structure"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fdAT-chunk"> +<link rel="help" href="https://www.w3.org/TR/png-3/#cICP-chunk"> +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="Each frame inherits every property specified by any critical or ancillary chunks before the first IDAT chunk in the file"> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2100); +</script> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <!-- sRGB lime = color(display-p3 0.4584 0.9853 0.2983) --> + <div class="test"><img src="support/062.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/fcTL-acTL-ordering.html b/testing/web-platform/tests/png/apng/fcTL-acTL-ordering.html new file mode 100644 index 0000000000..9d9856d985 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-acTL-ordering.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, blend ops</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="acTL must be before PLTE and IDAT. One fcTL may occur before IDAT; all others shall be after IDAT"> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2000); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/024.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-blend-over-repeatedly.html b/testing/web-platform/tests/png/apng/fcTL-blend-over-repeatedly.html new file mode 100644 index 0000000000..cb42a037a9 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-blend-over-repeatedly.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, blend ops</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="If blend_op is APNG_BLEND_OP_OVER the frame should be composited onto the output buffer based on its alpha, using a simple OVER operation as described in Alpha Channel Processing."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2500); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/021.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-blend-over-solid.html b/testing/web-platform/tests/png/apng/fcTL-blend-over-solid.html new file mode 100644 index 0000000000..45d7917376 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-blend-over-solid.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, blend ops</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="If blend_op is APNG_BLEND_OP_OVER the frame should be composited onto the output buffer based on its alpha, using a simple OVER operation as described in Alpha Channel Processing."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2000); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/020.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-blend-source-nearly-transparent.html b/testing/web-platform/tests/png/apng/fcTL-blend-source-nearly-transparent.html new file mode 100644 index 0000000000..98205ca69b --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-blend-source-nearly-transparent.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, blend ops</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="nearly-transparent-ref.html"> +<meta name="assert" content="If blend_op is APNG_BLEND_OP_SOURCE all color components of the frame, including alpha, overwrite the current contents of the frame's output buffer region."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 1200); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a grey checkerboard, and no red.</p> + <div class="test"><img src="support/019.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-blend-source-solid.html b/testing/web-platform/tests/png/apng/fcTL-blend-source-solid.html new file mode 100644 index 0000000000..c00c478d40 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-blend-source-solid.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, blend ops</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="If blend_op is APNG_BLEND_OP_SOURCE all color components of the frame, including alpha, overwrite the current contents of the frame's output buffer region."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 1200); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/017.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-blend-source-transparent.html b/testing/web-platform/tests/png/apng/fcTL-blend-source-transparent.html new file mode 100644 index 0000000000..1eab83d80d --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-blend-source-transparent.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, blend ops</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-checkerboard-ref.html"> +<meta name="assert" content="If blend_op is APNG_BLEND_OP_SOURCE all color components of the frame, including alpha, overwrite the current contents of the frame's output buffer region."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 1200); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a grey checkerboard, and no red.</p> + <div class="test"><img src="support/018.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-dispose-background-final.html b/testing/web-platform/tests/png/apng/fcTL-dispose-background-final.html new file mode 100644 index 0000000000..d56010eb3d --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-dispose-background-final.html @@ -0,0 +1,34 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, dispose ops</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="the frame's region of the output buffer is to be cleared to fully transparent black before rendering the next frame."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, "1200"); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/009.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-dispose-background.html b/testing/web-platform/tests/png/apng/fcTL-dispose-background.html new file mode 100644 index 0000000000..a68ed42b98 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-dispose-background.html @@ -0,0 +1,34 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, dispose ops</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="match" href="apng-checkerboard-ref.html"> +<meta name="assert" content="the frame's region of the output buffer is to be cleared to fully transparent black before rendering the next frame."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 1300); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a grey checkerboard, and no red.</p> + <div class="test"><img src="support/008.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-dispose-before-region-background.html b/testing/web-platform/tests/png/apng/fcTL-dispose-before-region-background.html new file mode 100644 index 0000000000..09570513cf --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-dispose-before-region-background.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, dispose ops and regions</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-checkerboard-ref.html"> +<meta name="assert" content="The frame must be rendered within the region defined by x_offset, y_offset, width, and height."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 1200); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a grey checkerboard, and no red.</p> + <div class="test"><img src="support/014.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-dispose-in-region-background.html b/testing/web-platform/tests/png/apng/fcTL-dispose-in-region-background.html new file mode 100644 index 0000000000..5f61da232d --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-dispose-in-region-background.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, dispose ops and regions</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-blue-rect-checkerboard-ref.html"> +<meta name="assert" content="The frame must be rendered within the region defined by x_offset, y_offset, width, and height. The frame's region of the output buffer is to be cleared to fully transparent black before rendering the next frame."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 1300); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see solid blue rectangle containing a smaller region with a grey checkerboard, and no red.</p> + <div class="test"><img src="support/015.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-dispose-in-region-none.html b/testing/web-platform/tests/png/apng/fcTL-dispose-in-region-none.html new file mode 100644 index 0000000000..d0bd937e87 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-dispose-in-region-none.html @@ -0,0 +1,36 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, dispose ops and regions</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> + +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="The frame must be rendered within the region defined by x_offset, y_offset, width, and height. "> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 1300); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/013.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-dispose-in-region-previous.html b/testing/web-platform/tests/png/apng/fcTL-dispose-in-region-previous.html new file mode 100644 index 0000000000..0d15b3c664 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-dispose-in-region-previous.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, dispose ops</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="the frame's region of the output buffer is to be reverted to the previous contents before rendering the next frame."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 1300); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/016.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-dispose-none.html b/testing/web-platform/tests/png/apng/fcTL-dispose-none.html new file mode 100644 index 0000000000..f41f17a7c2 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-dispose-none.html @@ -0,0 +1,24 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, dispose ops</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="no disposal is done on this frame before rendering the next; the contents of the output buffer are left as is."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 1300); +</script> +<style> + +</style> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/007.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-dispose-previous-final.html b/testing/web-platform/tests/png/apng/fcTL-dispose-previous-final.html new file mode 100644 index 0000000000..1862fcfad4 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-dispose-previous-final.html @@ -0,0 +1,36 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, dispose ops</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> + +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="the frame's region of the output buffer is to be reverted to the previous contents before rendering the next frame."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 1200); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/011.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-dispose-previous-first.html b/testing/web-platform/tests/png/apng/fcTL-dispose-previous-first.html new file mode 100644 index 0000000000..c3a3ca9ddf --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-dispose-previous-first.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, dispose ops</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-checkerboard-ref.html"> +<meta name="assert" content="If the first fcTL chunk uses a dispose_op of APNG_DISPOSE_OP_PREVIOUS it should be treated as APNG_DISPOSE_OP_BACKGROUND."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 1200); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a grey checkerboard, and no red.</p> + <div class="test"><img src="support/012.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fcTL-dispose-previous.html b/testing/web-platform/tests/png/apng/fcTL-dispose-previous.html new file mode 100644 index 0000000000..cf9c408d8e --- /dev/null +++ b/testing/web-platform/tests/png/apng/fcTL-dispose-previous.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, dispose ops</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="the frame's region of the output buffer is to be reverted to the previous contents before rendering the next frame."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 1300); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/010.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/fdAT-16bit.html b/testing/web-platform/tests/png/apng/fdAT-16bit.html new file mode 100644 index 0000000000..cc59528642 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fdAT-16bit.html @@ -0,0 +1,34 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, bit depth</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fdAT-chunk"> +<link rel="match" href="apng-darkblue-rectangle-ref.html"> +<meta name="assert" content="It utilizes the same bit depth, colour type, compression method, filter method, interlace method, and palette (if any) as the static image."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2100); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a dark blue rectangle, and no red.</p> + <div class="test"><img src="support/033.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/fdAT-1bit-PLTE-tRNS.html b/testing/web-platform/tests/png/apng/fdAT-1bit-PLTE-tRNS.html new file mode 100644 index 0000000000..da10d16f6a --- /dev/null +++ b/testing/web-platform/tests/png/apng/fdAT-1bit-PLTE-tRNS.html @@ -0,0 +1,34 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, bit depth. 1-bit palette and transparency</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fdAT-chunk"> +<link rel="match" href="apng-darkblue-rectangle-ref.html"> +<meta name="assert" content="It utilizes the same bit depth, colour type, compression method, filter method, interlace method, and palette (if any) as the static image."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2100); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a dark blue rectangle, and no red.</p> + <div class="test"><img src="support/038.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/fdAT-1bit-PLTE.html b/testing/web-platform/tests/png/apng/fdAT-1bit-PLTE.html new file mode 100644 index 0000000000..6b15b198fb --- /dev/null +++ b/testing/web-platform/tests/png/apng/fdAT-1bit-PLTE.html @@ -0,0 +1,34 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, bit depth. 1-bit palette</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fdAT-chunk"> +<link rel="match" href="apng-solidlime-rectangle-ref.html"> +<meta name="assert" content="It utilizes the same bit depth, colour type, compression method, filter method, interlace method, and palette (if any) as the static image."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2100); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a solid lime green rectangle, and no red.</p> + <div class="test"><img src="support/036.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/fdAT-2bit-PLTE-tRNS.html b/testing/web-platform/tests/png/apng/fdAT-2bit-PLTE-tRNS.html new file mode 100644 index 0000000000..5ab6f8e0d6 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fdAT-2bit-PLTE-tRNS.html @@ -0,0 +1,34 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, bit depth. 2-bit palette and transparency</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fdAT-chunk"> +<link rel="match" href="apng-solidlime-rectangle-ref.html"> +<meta name="assert" content="It utilizes the same bit depth, colour type, compression method, filter method, interlace method, and palette (if any) as the static image."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2100); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a solid lime green rectangle, and no red.</p> + <div class="test"><img src="support/037.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/fdAT-8bit-gray-alpha.html b/testing/web-platform/tests/png/apng/fdAT-8bit-gray-alpha.html new file mode 100644 index 0000000000..1719ebd1b5 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fdAT-8bit-gray-alpha.html @@ -0,0 +1,34 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, bit depth. blended 8bit grayscale with alpha</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fdAT-chunk"> +<link rel="match" href="apng-solidgray-rectangle-ref.html"> +<meta name="assert" content="It utilizes the same bit depth, colour type, compression method, filter method, interlace method, and palette (if any) as the static image."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2100); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a solid gray rectangle, and no red.</p> + <div class="test"><img src="support/035.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/fdAT-8bit-gray.html b/testing/web-platform/tests/png/apng/fdAT-8bit-gray.html new file mode 100644 index 0000000000..969a8867a8 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fdAT-8bit-gray.html @@ -0,0 +1,34 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, bit depth. 8bit grayscale</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fdAT-chunk"> +<link rel="match" href="apng-graywhite-rectangle-ref.html"> +<meta name="assert" content="It utilizes the same bit depth, colour type, compression method, filter method, interlace method, and palette (if any) as the static image."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2100); +</script> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a gray rectangle, with a white rectangle in the middle, and no red.</p> + <div class="test"><img src="support/034.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/fdAT-split-basic.html b/testing/web-platform/tests/png/apng/fdAT-split-basic.html new file mode 100644 index 0000000000..1c718f0ce4 --- /dev/null +++ b/testing/web-platform/tests/png/apng/fdAT-split-basic.html @@ -0,0 +1,20 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, split fdAT</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fdAT-chunk"> +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="The compressed datastream is then the concatenation of the contents of the data fields of all the fdAT chunks within a frame. "> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2000); +</script> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/005.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/fdAT-split-zero-length.html b/testing/web-platform/tests/png/apng/fdAT-split-zero-length.html new file mode 100644 index 0000000000..68ddec482c --- /dev/null +++ b/testing/web-platform/tests/png/apng/fdAT-split-zero-length.html @@ -0,0 +1,20 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, split fdAT with zero-length chunk</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fdAT-chunk"> +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="The compressed datastream is then the concatenation of the contents of the data fields of all the fdAT chunks within a frame. "> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2000); +</script> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/006.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/first-frame-IDAT.html b/testing/web-platform/tests/png/apng/first-frame-IDAT.html new file mode 100644 index 0000000000..8231f66da7 --- /dev/null +++ b/testing/web-platform/tests/png/apng/first-frame-IDAT.html @@ -0,0 +1,20 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#structure"> +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="The static image may be included as the first frame of the animation by the presence of a single fcTL chunk before IDAT."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2000); +</script> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/001.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/first-frame-not-IDAT.html b/testing/web-platform/tests/png/apng/first-frame-not-IDAT.html new file mode 100644 index 0000000000..8abe46d339 --- /dev/null +++ b/testing/web-platform/tests/png/apng/first-frame-not-IDAT.html @@ -0,0 +1,20 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG</title> +<link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#structure"> +<link rel="match" href="apng-lime-rectangle-ref.html"> +<meta name="assert" content="Otherwise, the static image is not part of the animation."> +<script> + const el = document.querySelector(".reftest-wait"); + setTimeout(() => { + el.classList.remove('reftest-wait'); + }, 2100); +</script> +<body> + <p>Test passes if you see a lime green rectangle, and no red.</p> + <div class="test"><img src="support/002.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/manual/acTL-plays-one-manual.html b/testing/web-platform/tests/png/apng/manual/acTL-plays-one-manual.html new file mode 100644 index 0000000000..66c01e8bc3 --- /dev/null +++ b/testing/web-platform/tests/png/apng/manual/acTL-plays-one-manual.html @@ -0,0 +1,25 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, plays</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<meta name="assert" content="num_plays indicates the number of times that this animation should play. If nonzero, the animation should come to rest on the final frame at the end of the last play."> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if this flashes yellow for one second, then stays blue forever</p> + <div class="test"><img src="../support/031.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/manual/acTL-plays-two-manual.html b/testing/web-platform/tests/png/apng/manual/acTL-plays-two-manual.html new file mode 100644 index 0000000000..c7d36da3b3 --- /dev/null +++ b/testing/web-platform/tests/png/apng/manual/acTL-plays-two-manual.html @@ -0,0 +1,26 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, plays</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<meta name="assert" content="num_plays indicates the number of times that this animation should play. If nonzero, the animation should come to rest on the final frame at the end of the last play."> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if this flashes yellow for one second, then + blue for one second, then yellow for one second, then blue forever.</p> + <div class="test"><img src="../support/032.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/manual/acTL-plays-zero-manual.html b/testing/web-platform/tests/png/apng/manual/acTL-plays-zero-manual.html new file mode 100644 index 0000000000..e0e0c95686 --- /dev/null +++ b/testing/web-platform/tests/png/apng/manual/acTL-plays-zero-manual.html @@ -0,0 +1,25 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, plays</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<meta name="assert" content="num_plays indicates the number of times that this animation should play; if it is 0, the animation should play indefinitely."> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if this flashes yellow for one second, then blue for one second, then repeats forever. </p> + <div class="test"><img src="../support/030.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/manual/fcTL-delay-16bit-manual.html b/testing/web-platform/tests/png/apng/manual/fcTL-delay-16bit-manual.html new file mode 100644 index 0000000000..8aaefe729e --- /dev/null +++ b/testing/web-platform/tests/png/apng/manual/fcTL-delay-16bit-manual.html @@ -0,0 +1,25 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, delays</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<meta name="assert" content="delay_num and delay_den define the numerator and denominator of the delay fraction; indicating the time to display the current frame, in seconds."> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if this flashes blue for half a second, then yellow for one second, then repeats forever. </p> + <div class="test"><img src="../support/027.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/manual/fcTL-delay-basic-manual.html b/testing/web-platform/tests/png/apng/manual/fcTL-delay-basic-manual.html new file mode 100644 index 0000000000..96ca2eb6e7 --- /dev/null +++ b/testing/web-platform/tests/png/apng/manual/fcTL-delay-basic-manual.html @@ -0,0 +1,25 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, delays</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<meta name="assert" content="delay_num and delay_den define the numerator and denominator of the delay fraction; indicating the time to display the current frame, in seconds."> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if this flashes blue for half a second, then yellow for one second, then repeats forever. </p> + <div class="test"><img src="../support/025.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/manual/fcTL-delay-rounding-manual.html b/testing/web-platform/tests/png/apng/manual/fcTL-delay-rounding-manual.html new file mode 100644 index 0000000000..e5e925079b --- /dev/null +++ b/testing/web-platform/tests/png/apng/manual/fcTL-delay-rounding-manual.html @@ -0,0 +1,25 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, delays</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<meta name="assert" content="delay_num and delay_den define the numerator and denominator of the delay fraction; indicating the time to display the current frame, in seconds."> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if this flashes blue for half a second, then yellow for one second, then repeats forever. </p> + <div class="test"><img src="../support/026.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/manual/fcTL-delay-zero-denom-manual.html b/testing/web-platform/tests/png/apng/manual/fcTL-delay-zero-denom-manual.html new file mode 100644 index 0000000000..eeef22d3da --- /dev/null +++ b/testing/web-platform/tests/png/apng/manual/fcTL-delay-zero-denom-manual.html @@ -0,0 +1,25 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, delays</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<meta name="assert" content="If the denominator is 0, it is to be treated as if it were 100 (that is, delay_num then specifies 1/100ths of a second)."> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if this flashes blue for half a second, then yellow for one second, then repeats forever. </p> + <div class="test"><img src="../support/028.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/manual/fcTL-delay-zero-num-manual.html b/testing/web-platform/tests/png/apng/manual/fcTL-delay-zero-num-manual.html new file mode 100644 index 0000000000..561d01e4db --- /dev/null +++ b/testing/web-platform/tests/png/apng/manual/fcTL-delay-zero-num-manual.html @@ -0,0 +1,26 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, delays</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> +<link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> +<meta name="assert" content="If the the value of the numerator is 0 the decoder should render the next frame as quickly as possible, though viewers may impose a reasonable lower bound."> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p><i>There may be some brief cyan and magenta flashes; ignore these.</i></p> + <p>Test passes if this flashes blue for half a second, then yellow for one second, then repeats forever. </p> + <div class="test"><img src="../support/029.png" alt=""></div> +</body> diff --git a/testing/web-platform/tests/png/apng/nearly-transparent-ref.html b/testing/web-platform/tests/png/apng/nearly-transparent-ref.html new file mode 100644 index 0000000000..6cfc7757a8 --- /dev/null +++ b/testing/web-platform/tests/png/apng/nearly-transparent-ref.html @@ -0,0 +1,24 @@ +<!DOCTYPE html> +<html> +<meta charset="utf-8"> +<title>PNG Third Edition: animated PNG, blend ops</title> +<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> +<style> + .test { + width: 128px; + height: 64px; + background-color: white; + background-image: + linear-gradient(45deg, #ccc 25%, transparent 25%), + linear-gradient(-45deg, #ccc 25%, transparent 25%), + linear-gradient(45deg, transparent 75%, #ccc 75%), + linear-gradient(-45deg, transparent 75%, #ccc 75%); + background-size: 16px 16px; + background-position: 0 0, 0 8px, 8px -8px, -8px 0px; + } +</style> +<body> + <p>Test passes if you see a grey checkerboard, and no red.</p> + <div class="test"><img src="support/nearly.png" alt=""></div> +</body> +</html>
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/resources/README.md b/testing/web-platform/tests/png/apng/resources/README.md new file mode 100644 index 0000000000..ecd61795b1 --- /dev/null +++ b/testing/web-platform/tests/png/apng/resources/README.md @@ -0,0 +1,14 @@ +# Regenerating APNG Test Images + +## Test images + +Most of the APNG tests are a port to WPT of an [earlier testsuite by Philip Taylor](https://philip.html5.org/tests/apng/tests.html). The test images were autogenerated, and this directory contains what is needed to regenerate them: + +- ['source.html'](./source.html) which contains a human-readable description of each test file +- ['generate.pl'](./generate.pl) which uses [Cairo](https://www.cairographics.org/) to create the test images + +If this script is used to create additional images, not part of the original test suite, be aware that the generated files are automatically named as sequentially-numbered `nnn.png` so add any new ones _at the end_ to avoid changing the name of existing files. + +## Reference images + +The reference images were created by decompiling the APNG with [apngasm](https://github.com/apngasm/apngasm) into a series of static PNG representing the displayed state of each frame. The last one therefore represents the end state of the animation. Again this tool produces numbered files like `nn.png` so these were renamed in a more meaningful way (such as `darkblue.png`) to create the reference images. diff --git a/testing/web-platform/tests/png/apng/resources/generate.pl b/testing/web-platform/tests/png/apng/resources/generate.pl new file mode 100644 index 0000000000..631356fb7e --- /dev/null +++ b/testing/web-platform/tests/png/apng/resources/generate.pl @@ -0,0 +1,390 @@ +=pod +Copyright (c) 2007 Philip Taylor + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +=cut + +use strict; +use warnings; + +use Compress::Zlib(); +use Cairo; +use PDL qw(float byte); + +sub chunk { + my ($name, $data) = @_; + (pack 'N', length $data) . $name . $data . (pack 'N', Compress::Zlib::crc32($name . $data)); +} + +sub IHDR { + my ($img) = @_; + return chunk 'IHDR', pack 'NNCCCCC', + $img->{width}, $img->{height}, + $img->{bit_depth}, $img->{color_type}, + $img->{compression_method}, $img->{filter_method}, $img->{interlace_method}; +} + +sub gAMA { + my ($img) = @_; + return chunk 'gAMA', pack 'N', $img->{gamma}; +} + +sub sRGB { + my ($img) = @_; + return chunk 'sRGB', pack 'C', $img->{rendering_intent}; +} + +sub PLTE { + my ($img) = @_; + return chunk 'PLTE', pack 'C*', @{$img->{colours}}; +} + +sub tRNS { + my ($img) = @_; + return chunk 'tRNS', pack 'C*', @{$img->{values}}; +} + +sub IDAT { + my ($img) = @_; + return chunk 'IDAT', xdat_data($img); +} + +sub IDAT_split { + my ($img, $blocksize) = @_; + my $c = xdat_data($img); + my @out; + while (length $c) { + push @out, chunk 'IDAT', substr $c, 0, $blocksize, ''; + } + return @out; +} + +sub IEND { + my ($img) = @_; + return chunk 'IEND', ''; +} + +sub acTL { + my ($img) = @_; + return chunk 'acTL', pack 'NN', $img->{num_frames}, $img->{num_plays}; +} + +sub fcTL { + my ($img) = @_; + return chunk 'fcTL', pack 'NNNNNnnCC', + $img->{sequence_number}, + $img->{width}, $img->{height}, + $img->{x_offset}, $img->{y_offset}, + $img->{delay_num}, $img->{delay_den}, + $img->{dispose_op}, $img->{blend_op}; +} + +sub fdAT { + my ($img) = @_; + return chunk 'fdAT', (pack 'N', $img->{sequence_number}) . xdat_data($img); +} + +sub xdat_data { + my ($img) = @_; + return compress(filter($img->{image_data}, $img->{width}, $img->{height}, $img->{depth})); +} + +use constant DISPOSE_NONE => 0; +use constant DISPOSE_BACKGROUND => 1; +use constant DISPOSE_PREVIOUS => 2; +use constant BLEND_SOURCE => 0; +use constant BLEND_OVER => 1; + +sub filter { + my ($imagedata, $width, $height, $depth) = @_; + my $out = ''; + for my $scanline (0..$height-1) { + $out .= pack 'C', 0; + $out .= substr($imagedata, $scanline*$width*$depth/8, $width*$depth/8); + } + return $out; +} + +sub compress { + my ($filtered) = @_; + return Compress::Zlib::compress($filtered); +} + + +sub fix_bitmap { + my ($d) = @_; + # Flip BGRA->RGBA, and undo premultiplication + + my $pdl = float unpack 'C*', $d; + my $pdl2 = byte $pdl; + my $a = 255 / $pdl->mslice([3, -1, 4]); + $pdl2->mslice([0, -1, 4]) .= $pdl->mslice([2, -1, 4])*$a; + $pdl2->mslice([1, -1, 4]) .= $pdl->mslice([1, -1, 4])*$a; + $pdl2->mslice([2, -1, 4]) .= $pdl->mslice([0, -1, 4])*$a; + return ${(byte $pdl2)->get_dataref}; +=pod + my @d = unpack 'C*', $d; + my $a; + for (map $_*4, 0..$#d/4) { + if ($a = $d[$_+3]) { + $a = 255 / $a; + @d[$_, $_+1, $_+2] = ($d[$_+2]*$a, $d[$_+1]*$a, $d[$_]*$a); + } # else alpha=0 hence r=g=b=0, so nothing to do + } + return pack 'C*', @d; +=cut +} + +sub create_surface { + my ($w, $h, $type, @data) = @_; + my $surface = Cairo::ImageSurface->create('argb32', $w, $h); + my $cr = Cairo::Context->create($surface); + + if ($type eq 'red') { + ($type, @data) = ('solid', 1, 0, 0, 1); + } elsif ($type eq 'green') { + ($type, @data) = ('solid', 0, 1, 0, 1); + } elsif ($type eq 'blue') { + ($type, @data) = ('solid', 0, 0, 1, 1); + } elsif ($type eq 'cyan') { + ($type, @data) = ('solid', 0, 1, 1, 1); + } elsif ($type eq 'magenta') { + ($type, @data) = ('solid', 1, 0, 1, 1); + } elsif ($type eq 'yellow') { + ($type, @data) = ('solid', 1, 1, 0, 1); + } elsif ($type eq 'transparent') { + ($type, @data) = ('solid', 0, 0, 0, 0); + } + + if ($type eq 'solid') { + $cr->rectangle(0, 0, $w, $h); + $cr->set_source_rgba(@data); + $cr->fill; + } elsif ($type eq 'doublerect') { + $cr->rectangle(0, 0, $w, $h); + $cr->set_source_rgba(@data[0..3]); + $cr->fill; + $cr->rectangle(int($w/4), int($h/4), int($w/2), int($h/2)); + $cr->set_source_rgba(@data[4..7]); + $cr->fill; + } else { + die "Invalid create_surface type '$type'"; + } + return { width => $w, height => $h, depth => 32, data => fix_bitmap($surface->get_data) }; +} + +sub create_raw_surface { + my ($w, $h, $d, $data) = @_; + return { width => $w, height => $h, depth => $d, data => $data }; +} + +sub find_errors { + my (@img) = @_; + my @chunks; + { + my @img2 = @img; + push @chunks, [ splice @img2, 0, 2 ] while @img2; + } + + my $chunknames = join '', map "<$_->[0]>", @chunks; + + my @errors; + + my $has_actl = ($chunknames =~ /<acTL>/); + + if ($has_actl) { + # acTL must be before IDAT + if ($chunknames =~ /<IDAT>.*<acTL>/) { + push @errors, "acTL after IDAT"; + } + + # Must have only one acTL (TODO: in spec?) + if ($chunknames =~ /<acTL>.*<acTL>/) { + push @errors, "More than one acTL"; + } + + my $num_frames = {@img}->{acTL}[0]; + + # num_frames > 0 + if ($num_frames <= 0) { + push @errors, "num_frames <= 0"; + } + + # num_frames = count(fcTL) + my $num_fctls = grep $_->[0] eq 'fcTL', @chunks; + if ($num_frames != $num_fctls) { + push @errors, "num_frames ($num_frames) != number of fcTLs ($num_fctls)"; + } + } + + # Check sequence numbers (start from 0, no duplicates or gaps) + my @seqnos; + for (grep { $_->[0] =~ /^(fcTL|fdAT|fdAT_split)$/ } @chunks) { + push @seqnos, $_->[1][0]; + } + if (@seqnos and (join ',', @seqnos) ne (join ',', 0..$#seqnos)) { + push @errors, "Incorrect sequence numbers"; + } + + return @errors; +} + +sub create_image { + my ($filename, @img) = @_; + my @chunks; + while (@img) { + my ($chunk, $data) = splice @img, 0, 2; + if ($chunk eq 'IHDR') { + push @chunks, IHDR { + width => $data->[0], + height => $data->[1], + bit_depth => defined $data->[2] ? $data->[2] : 8, + color_type => defined $data->[3] ? $data->[3] : 6, + compression_method => 0, + filter_method => 0, + interlace_method => 0, + }; + } elsif ($chunk eq 'IEND') { + push @chunks, IEND { } + } elsif ($chunk eq 'gAMA') { + push @chunks, gAMA { + gamma => int(100_000*$data->[0]), + }; + } elsif ($chunk eq 'sRGB') { + push @chunks, sRGB { + rendering_intent => $data->[0], + }; + } elsif ($chunk eq 'PLTE') { + push @chunks, PLTE { + colours => $data, + }; + } elsif ($chunk eq 'tRNS') { + push @chunks, tRNS { + values => $data, + }; + } elsif ($chunk eq 'acTL') { + push @chunks, acTL { + num_frames => $data->[0], + num_plays => $data->[1], + }; + } elsif ($chunk eq 'fcTL') { + push @chunks, fcTL { + sequence_number => $data->[0], + width => $data->[1], + height => $data->[2], + x_offset => $data->[3], + y_offset => $data->[4], + delay_num => $data->[5], + delay_den => $data->[6], + dispose_op => $data->[7], + blend_op => $data->[8], + }; + } elsif ($chunk eq 'IDAT') { + push @chunks, IDAT { + depth => $data->[0]{depth}, + width => $data->[0]{width}, + height => $data->[0]{height}, + image_data => $data->[0]{data}, + } + } elsif ($chunk eq 'IDAT_split') { + my $c = xdat_data { + depth => $data->[2]{depth}, + width => $data->[2]{width}, + height => $data->[2]{height}, + image_data => $data->[2]{data}, + }; + if ($data->[1] == -1) { + $c = substr $c, $data->[0]; + } else { + $c = substr $c, $data->[0], $data->[1] - $data->[0]; + } + push @chunks, chunk 'IDAT', $c; + } elsif ($chunk eq 'fdAT') { + push @chunks, fdAT { + sequence_number => $data->[0], + depth => $data->[1]{depth}, + width => $data->[1]{width}, + height => $data->[1]{height}, + image_data => $data->[1]{data}, + } + } elsif ($chunk eq 'fdAT_split') { + my $c = xdat_data { + depth => $data->[3]{depth}, + width => $data->[3]{width}, + height => $data->[3]{height}, + image_data => $data->[3]{data}, + }; + if ($data->[2] == -1) { + $c = substr $c, $data->[1]; + } else { + $c = substr $c, $data->[1], $data->[2] - $data->[1]; + } + push @chunks, chunk 'fdAT', (pack 'N', $data->[0]) . $c; + } else { + die "Invalid create_image chunk '$chunk'"; + } + } + open my $fh, '>', "images/$filename.png" or die $!; + binmode $fh; + print $fh "\211PNG\r\n\032\n", @chunks; +} + +use constant W => 128; +use constant H => 64; + +sub escape_html { + my ($t) = @_; + $t =~ s/&/&/g; + $t =~ s/</</g; + return $t; +} + +my $img_id = '000'; +sub handle_html_png { + my ($code) = @_; + my $name = $img_id++; + my @img = eval '(' . $code . ')'; + die $@ if $@; + create_image($name, @img); + my $data = $code; + $data =~ s/^\s*(.*?)\s*$/$1/sg; + $data =~ s/([^a-zA-Z0-9])/sprintf('%%%02X', ord $1)/eg; + my $errors = (join '; ', map escape_html($_), find_errors(@img)) || 'None'; + return qq{<p>} + #. qq{<object data="$name.png" class="testimage"><strong>Did not load image.</strong></object>} # IE doesn't like this + . qq{<img src="$name.png" alt="Did not load image" class="testimage">\n} + . qq{<p><a href="data:text/plain,$data">(source)</a>\n} + #. qq{<p>Expected errors: $errors\n} + ; +} +# TODO: regexping HTML is nasty - should use a better input data format instead +sub handle_html_case { + my ($title) = @_; + my $id = lc $title; + $id =~ s/[^a-z0-9]+/-/g; + $id =~ s/^-*(.*?)-*$/$1/g; + return qq{<div class="case" id="$id">\n<p><a href="#$id">#</a> $title\n}; +} + +open my $in, 'source.html' or die $!; +my $html = do { local $/; <$in> }; +$html =~ s/<png>(.*?)<\/png>/handle_html_png($1)/seg; +$html =~ s/<div class="case">\n<p>(.*?)\n/handle_html_case($1)/eg; +open my $out, '>', 'images/tests.html' or die $!; +print $out $html;
\ No newline at end of file diff --git a/testing/web-platform/tests/png/apng/resources/source.html b/testing/web-platform/tests/png/apng/resources/source.html new file mode 100644 index 0000000000..cca7063cff --- /dev/null +++ b/testing/web-platform/tests/png/apng/resources/source.html @@ -0,0 +1,1014 @@ +<!DOCTYPE HTML> +<title>APNG tests</title> +<style> +html { + background-color: white; + color: black; +} +body { + font-family: sans-serif; +} +.testimage { + border: 1px black solid; + background: #ffa; +} +blockquote { + font-style: italic; +} +blockquote[cite]:after { + font-style: normal; + font-size: x-small; + padding-left: 2em; + content: "(" attr(cite) ")"; +} +blockquote[cite="#apng"]:after { + content: "(APNG Specification)"; +} +blockquote[cite="#png"]:after { + content: "(PNG Specification)"; +} +blockquote p { + margin: 0; +} +div.case { + border: 1px #888 solid; + padding: 0.3em; + margin: 0.3em; +} +div.case:target { + border: 2px #000 solid; +} +div.case > p { + margin: 0; +} +</style> + +<p><em>This page is somewhat incomplete and quite possibly incorrect – use with caution. <img src="underconstruction.png" style="vertical-align: middle" alt=""></em> + +<h1>APNG tests</h1> + +<p>For all these tests, wait at least a second after all the images have downloaded, before checking that the rendered output is correct. + +<p>Test output conventions: +A solid green 128×64 rectangle means success. +Any red means failure. +Anything else means you need to read the instructions. +"Transparent" is indicated by a <span style="background: #ffa">light yellow background</span>. + +<p>Sections of the relevant specifications are sometimes quoted when they clarify the expected behaviour. + +<p>Please don't link directly to the images in this page, since they may get renamed and will break any such links. + +<p>You can download <a href="generate.pl">the script</a> and <a href="source.html">the source data</a> for this page. + + +<h2>Valid images</h2> + + +<h3>Basic cases</h3> + +<div class="case"> +<p>Trivial static image. +<p>This should be solid green. +<png> +IHDR => [W, H], +IDAT => [create_surface(W, H, 'green')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Trivial animated image - one frame; using default image. +<p>This should be solid green. +<png> +IHDR => [W, H], +acTL => [1, 0], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +IDAT => [create_surface(W, H, 'green')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Trivial animated image - one frame; ignoring default image. +<p>This should be solid green. +<png> +IHDR => [W, H], +acTL => [1, 0], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'green')], +IEND => [], +</png> +</div> + + +<h3>IDAT, fdAT splitting</h3> +<blockquote cite="#png"><p>There may be multiple IDAT chunks; if so, they shall appear consecutively with no other intervening chunks. The compressed datastream is then the concatenation of the contents of the data fields of all the IDAT chunks.</blockquote> +<blockquote cite="#apng"><p>The compressed datastream is then the concatenation of the contents of the data fields of all the `fdAT` chunks within a frame.</blockquote> + +<div class="case"> +<p>Basic split IDAT. +<p>This should be solid green. +<png> +IHDR => [W, H], +IDAT_split => [0,32, create_surface(W, H, 'green')], +IDAT_split => [32,-1, create_surface(W, H, 'green')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Split IDAT with zero-length chunk. +<p>This should be solid green. +<png> +IHDR => [W, H], +IDAT_split => [0,32, create_surface(W, H, 'green')], +IDAT_split => [32,32, create_surface(W, H, 'green')], +IDAT_split => [32,-1, create_surface(W, H, 'green')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Basic split fdAT. +<p>This should be solid green. +<png> +IHDR => [W, H], +acTL => [1, 0], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT_split => [1, 0,32, create_surface(W, H, 'green')], +fdAT_split => [2, 32,-1, create_surface(W, H, 'green')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Split fdAT with zero-length chunk. +<p>This should be solid green. +<!-- Opera bug 286566 --> +<png> +IHDR => [W, H], +acTL => [1, 0], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT_split => [1, 0,32, create_surface(W, H, 'green')], +fdAT_split => [2, 32,32, create_surface(W, H, 'green')], +fdAT_split => [3, 32,-1, create_surface(W, H, 'green')], +IEND => [], +</png> +</div> + + +<h3>Dispose ops</h3> + +<div class="case"> +<p>APNG_DISPOSE_OP_NONE - basic. +<p>This should be solid green. +<png> +IHDR => [W, H], +acTL => [3, 1], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +IDAT => [create_surface(W, H, 'red')], +fcTL => [1, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [2, create_surface(W, H, 'green')], +fcTL => [3, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [4, create_surface(W, H, 'transparent')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>APNG_DISPOSE_OP_BACKGROUND - basic. +<p>This should be transparent. +<png> +IHDR => [W, H], +acTL => [3, 1], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +IDAT => [create_surface(W, H, 'red')], +fcTL => [1, W, H, 0, 0, 10, 100, DISPOSE_BACKGROUND, BLEND_OVER], +fdAT => [2, create_surface(W, H, 'red')], +fcTL => [3, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [4, create_surface(W, H, 'transparent')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>APNG_DISPOSE_OP_BACKGROUND - final frame. +<p>This should be solid green. +<png> +IHDR => [W, H], +acTL => [2, 1], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +IDAT => [create_surface(W, H, 'red')], +fcTL => [1, W, H, 0, 0, 10, 100, DISPOSE_BACKGROUND, BLEND_OVER], +fdAT => [2, create_surface(W, H, 'green')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>APNG_DISPOSE_OP_PREVIOUS - basic. +<p>This should be solid green. +<png> +IHDR => [W, H], +acTL => [3, 1], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'green')], +fcTL => [2, W, H, 0, 0, 10, 100, DISPOSE_PREVIOUS, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'red')], +fcTL => [4, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [5, create_surface(W, H, 'transparent')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>APNG_DISPOSE_OP_PREVIOUS - final frame. +<p>This should be solid green. +<png> +IHDR => [W, H], +acTL => [2, 1], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +IDAT => [create_surface(W, H, 'red')], +fcTL => [1, W, H, 0, 0, 10, 100, DISPOSE_PREVIOUS, BLEND_OVER], +fdAT => [2, create_surface(W, H, 'green')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>APNG_DISPOSE_OP_PREVIOUS - first frame. +<p>This should be transparent. +<png> +IHDR => [W, H], +acTL => [2, 1], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_PREVIOUS, BLEND_OVER], +IDAT => [create_surface(W, H, 'red')], +fcTL => [1, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [2, create_surface(W, H, 'transparent')], +IEND => [], +</png> +</div> + + +<h3>Dispose ops and regions</h3> + +<div class="case"> +<p>APNG_DISPOSE_OP_NONE in region. +<p>This should be solid green. +<png> +IHDR => [W, H], +acTL => [3, 1], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +IDAT => [create_surface(W, H, 'doublerect', 0,1,0,1, 1,0,0,1)], +fcTL => [1, W/2, H/2, W/4, H/4, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [2, create_surface(W/2, H/2, 'green')], +fcTL => [3, 1, 1, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [4, create_surface(1, 1, 'transparent')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>APNG_DISPOSE_OP_BACKGROUND before region. +<p>This should be transparent. +<png> +IHDR => [W, H], +acTL => [2, 1], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_BACKGROUND, BLEND_OVER], +IDAT => [create_surface(W, H, 'red')], +fcTL => [1, 1, 1, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [2, create_surface(1, 1, 'transparent')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>APNG_DISPOSE_OP_BACKGROUND in region. +<p>This should be a solid blue rectangle containing a smaller transparent rectangle. +<!-- Opera bug 286565 --> +<png> +IHDR => [W, H], +acTL => [3, 1], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +IDAT => [create_surface(W, H, 'doublerect', 0,0,1,1, 1,0,0,1)], +fcTL => [1, W/2, H/2, W/4, H/4, 10, 100, DISPOSE_BACKGROUND, BLEND_OVER], +fdAT => [2, create_surface(W/2, H/2, 'red')], +fcTL => [3, 1, 1, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [4, create_surface(1, 1, 'transparent')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>APNG_DISPOSE_OP_PREVIOUS in region. +<p>This should be solid green. +<png> +IHDR => [W, H], +acTL => [3, 1], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'green')], +fcTL => [2, W/2, H/2, W/4, H/4, 10, 100, DISPOSE_PREVIOUS, BLEND_OVER], +fdAT => [3, create_surface(W/2, H/2, 'red')], +fcTL => [4, 1, 1, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [5, create_surface(1, 1, 'transparent')], +IEND => [], +</png> +</div> + + +<h3>Blend ops</h3> + +<div class="case"> +<p>APNG_BLEND_OP_SOURCE on solid colour. +<p>This should be solid green. +<png> +IHDR => [W, H], +acTL => [2, 1], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +fcTL => [2, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_SOURCE], +fdAT => [3, create_surface(W, H, 'green')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>APNG_BLEND_OP_SOURCE on transparent colour. +<p>This should be transparent. +<png> +IHDR => [W, H], +acTL => [2, 1], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +fcTL => [2, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_SOURCE], +fdAT => [3, create_surface(W, H, 'transparent')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>APNG_BLEND_OP_SOURCE on nearly-transparent colour. +<p>This should be very nearly transparent. +<png> +IHDR => [W, H], +acTL => [2, 1], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +fcTL => [2, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_SOURCE], +fdAT => [3, create_surface(W, H, 'solid', 0, 1, 0, 0.01)], +IEND => [], +</png> +</div> + +<div class="case"> +<p>APNG_BLEND_OP_OVER on solid and transparent colours. +<p>This should be solid green. +<png> +IHDR => [W, H], +acTL => [2, 1], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'green')], +fcTL => [2, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'transparent')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>APNG_BLEND_OP_OVER repeatedly with nearly-transparent colours. +<p>This should be solid green. +<png> +IHDR => [W, H], +acTL => [128, 1], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'solid', 0, 1, 0, 1)], +(map { + (fcTL => [2+$_*2, W/2, H, 0, 0, 1, 100, DISPOSE_NONE, BLEND_OVER], + fdAT => [3+$_*2, create_surface(W/2, H, 'solid', 0, 1, 0, 0.01)]) +} 0..126), +IEND => [], +</png> +</div> + + +<h3>Blending and gamma</h3> + +<div class="case"> +<p>APNG_BLEND_OP_OVER +<p>This should be solid slightly-dark green. +<png> +IHDR => [W, H], +gAMA => [1], +acTL => [16, 1], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'solid', 0, 1, 0, 1)], +(map { + (fcTL => [2+$_*2, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], + fdAT => [3+$_*2, create_surface(W, H, 'solid', 0, 0.9, 0, 0.5)]) +} 0..14), +IEND => [], +</png> +</div> + +<div class="case"> +<p>APNG_BLEND_OP_OVER +<p>This should be solid nearly-black. +<png> +IHDR => [W, H], +gAMA => [1/2200], +acTL => [16, 1], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +(map { + (fcTL => [2+$_*2, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], + fdAT => [3+$_*2, create_surface(W, H, 'solid', 0.9, 0, 0, 0.5)]) +} 0..14), +IEND => [], +</png> +</div> + + +<h3>Chunk ordering</h3> + +<div class="case"> +<p>fcTL before acTL. +<p>This should be solid green. +<png> +IHDR => [W, H], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +acTL => [2, 1], +IDAT => [create_surface(W, H, 'red')], +fcTL => [1, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [2, create_surface(W, H, 'green')], +IEND => [], +</png> +</div> + + +<h3>Delays</h3> + +<div class="case"> +<p>Basic delays. +<p>This should flash blue for half a second, then yellow for one second, then repeat. +<png> +IHDR => [W, H], +acTL => [4, 0], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 50, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'blue')], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'yellow')], +fcTL => [4, W, H, 0, 0, 10000, 20000, DISPOSE_NONE, BLEND_OVER], +fdAT => [5, create_surface(W, H, 'blue')], +fcTL => [6, W, H, 0, 0, 1, 1, DISPOSE_NONE, BLEND_OVER], +fdAT => [7, create_surface(W, H, 'yellow')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Rounding of division. +<p>This should flash blue for half a second, then yellow for one second, then repeat. +<png> +IHDR => [W, H], +acTL => [2, 0], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 1, 2, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'blue')], +fcTL => [2, W, H, 0, 0, 1, 1, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'yellow')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>16-bit numerator/denominator. +<p>This should flash blue for half a second, then yellow for one second, then repeat. +<png> +IHDR => [W, H], +acTL => [2, 0], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 32767, 65534, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'blue')], +fcTL => [2, W, H, 0, 0, 65535, 65535, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'yellow')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Zero denominator. +<blockquote cite="#apng"><p>If the denominator is 0, it is to be treated as if it were 100</blockquote> +<p>This should flash blue for half a second, then yellow for one second, then repeat. +<png> +IHDR => [W, H], +acTL => [2, 0], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 50, 0, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'blue')], +fcTL => [2, W, H, 0, 0, 1000, 1000, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'yellow')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Zero numerator. +<blockquote cite="#apng"><p>If the the value of the numerator is 0 the decoder should render the next frame as quickly as possible, though viewers may impose a reasonable lower bound.</blockquote> +<p>This should flash cyan for a short period of time (perhaps zero), then magenta for the same short period of time, then blue for half a second, then yellow for one second, then repeat. +<png> +IHDR => [W, H], +acTL => [4, 0], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 0, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'cyan')], +fcTL => [2, W, H, 0, 0, 0, 0, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'magenta')], +fcTL => [4, W, H, 0, 0, 500, 1000, DISPOSE_NONE, BLEND_OVER], +fdAT => [5, create_surface(W, H, 'blue')], +fcTL => [6, W, H, 0, 0, 1000, 1000, DISPOSE_NONE, BLEND_OVER], +fdAT => [7, create_surface(W, H, 'yellow')], +IEND => [], +</png> +</div> + + +<h3>num_plays</h3> + +<div class="case"> +<p>num_plays = 0 +<p>This should flash yellow for one second, then blue for one second, then repeat forever. +<png> +IHDR => [W, H], +acTL => [2, 0], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'yellow')], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'blue')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>num_plays = 1 +<p>When first loaded, this should flash yellow for one second, then stay blue forever. +<png> +IHDR => [W, H], +acTL => [2, 1], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'yellow')], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'blue')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>num_plays = 2 +<p>When first loaded, this should flash yellow for one second, then blue for one second, then yellow for one second, then blue forever. +<png> +IHDR => [W, H], +acTL => [2, 2], +IDAT => [create_surface(W, H, 'red')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'yellow')], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'blue')], +IEND => [], +</png> +</div> + + +<h3>Other depths and colour types</h3> + +<div class="case"> +<p>16-bit colour. +<p>This should be dark blue. +<png> +IHDR => [W, H, 16, 6], +acTL => [2, 1], +IDAT => [create_raw_surface(W, H, 64, "\xFF\x00\x00\x00\x00\x00\xFF\xFF" x (W*H))], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_raw_surface(W, H, 64, "\x00\x00\x00\x00\x00\x00\xFF\xFF" x (W*H))], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_raw_surface(W, H, 64, "\x00\x00\x00\x00\xFF\xFF\x80\x00" x (W*H))], +IEND => [], +</png> +</div> + +<div class="case"> +<p>8-bit greyscale. +<p>This should be a solid grey rectangle containing a solid white rectangle. +<png> +IHDR => [W, H, 8, 0], +acTL => [2, 1], +IDAT => [create_raw_surface(W, H, 8, "\x00\xFF" x (W*H/2))], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_raw_surface(W, H, 8, "\x80" x (W*H))], +fcTL => [2, W/2, H/2, W/4, H/4, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_raw_surface(W/2, H/2, 8, "\xFF" x (W*H/4))], +IEND => [], +</png> +</div> + +<div class="case"> +<p>8-bit greyscale and alpha, with blending. +<p>This should be solid grey. +<png> +IHDR => [W, H, 8, 4], +acTL => [2, 1], +IDAT => [create_raw_surface(W, H, 16, "\x00\xFF\xFF\xFF" x (W*H/2))], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_raw_surface(W, H, 16, "\x00\xFF" x (W*H))], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_raw_surface(W, H, 16, "\xFF\x80" x (W*H))], +IEND => [], +</png> +</div> + +<div class="case"> +<p>2-color palette. +<p>This should be solid green. +<png> +IHDR => [W, H, 1, 3], +PLTE => [255,0,0, 0,255,0], +acTL => [2, 1], +IDAT => [create_raw_surface(W, H, 1, "\x00" x (W*H/8))], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_raw_surface(W, H, 1, "\x00" x (W*H/8))], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_raw_surface(W, H, 1, "\xFF" x (W*H/8))], +IEND => [], +</png> +</div> + +<div class="case"> +<p>2-bit palette and alpha. +<p>This should be solid green. +<png> +IHDR => [W, H, 2, 3], +PLTE => [255,0,0, 255,0,0, 0,255,0], +tRNS => [255, 0, 255], +acTL => [2, 1], +IDAT => [create_raw_surface(W, H, 2, "\x00" x (W*H/4))], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_raw_surface(W, H, 2, "\xAA" x (W*H/4))], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_raw_surface(W, H, 2, "\x55" x (W*H/4))], +IEND => [], +</png> +</div> + +<div class="case"> +<p>1-bit palette and alpha, with blending. +<p>This should be solid dark blue. +<png> +IHDR => [W, H, 1, 3], +PLTE => [0,0,0, 0,0,255], +tRNS => [255, 128], +acTL => [2, 1], +IDAT => [create_raw_surface(W, H, 1, "\x00" x (W*H/8))], +fcTL => [0, W, H, 0, 0, 10, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_raw_surface(W, H, 1, "\x00" x (W*H/8))], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_raw_surface(W, H, 1, "\xFF" x (W*H/8))], +IEND => [], +</png> +</div> + + +<h2>Invalid images</h2> + +<blockquote cite="#apng"> +<p>It is strongly recommended that when any error is encountered decoders should discard all subsequent frames, stop the animation, and revert to displaying the default image. A decoder which detects an error before the animation has started should display the default image. An error message may be displayed to the user if appropriate. +</blockquote> +<p>(If some decoders accept broken images, it seems quite possible that people will create and distribute broken images, and then the error-handling would have to be reverse-engineered by other implementations; hence all these tests to ensure errors get detected properly.) +<p>For the following images, the default image (solid green) or an error should be displayed. + + +<h3>Incorrect chunks</h3> + +<div class="case"> +<p>Missing acTL. +<png> +IHDR => [W, H], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Repeated acTL. +<png> +IHDR => [W, H], +acTL => [1, 0], +acTL => [1, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>acTL after IDAT. +<png> +IHDR => [W, H], +IDAT => [create_surface(W, H, 'green')], +acTL => [1, 0], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Missing fcTL. +<p><em>Disabled for now, since it crashes Opera 9.5 alpha 1589 (bug 287173).</em> +<!-- +<png> +IHDR => [W, H], +acTL => [1, 0], +IDAT => [create_surface(W, H, 'green')], +fdAT => [0, create_surface(W, H, 'red')], +IEND => [], +</png> +--> +</div> + +<div class="case"> +<p>Repeated fcTL. +<png> +IHDR => [W, H], +acTL => [1, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Missing fdAT. +<png> +IHDR => [W, H], +acTL => [2, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fcTL => [1, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [2, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + + +<h3>num_frames</h3> + +<div class="case"> +<p>num_frames = 0; no default image. +<blockquote cite="#apng"><p>0 is not a valid value.</blockquote> +<png> +IHDR => [W, H], +acTL => [0, 0], +IEND => [], +</png> +</div> + +<div class="case"> +<p>num_frames = 0; ignoring default image. +<blockquote cite="#apng"><p>0 is not a valid value.</blockquote> +<png> +IHDR => [W, H], +acTL => [0, 0], +IDAT => [create_surface(W, H, 'green')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>num_frames too low. +<blockquote cite="#apng"><p>This must equal the number of `fcTL` chunks. ... If this value does not equal the actual number of frames it should be treated as an error.</blockquote> +<png> +IHDR => [W, H], +acTL => [1, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>num_frames too high by 1. +<blockquote cite="#apng"><p>This must equal the number of `fcTL` chunks. ... If this value does not equal the actual number of frames it should be treated as an error.</blockquote> +<png> +IHDR => [W, H], +acTL => [3, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>num_frames too high by 2. +<blockquote cite="#apng"><p>This must equal the number of `fcTL` chunks. ... If this value does not equal the actual number of frames it should be treated as an error.</blockquote> +<png> +IHDR => [W, H], +acTL => [4, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>num_frames outside valid range. +<blockquote cite="#apng"><p>an "unsigned int" shall be a 32-bit unsigned integer in network byte order limited to the range 0 to (2^31)-1</blockquote> +<png> +IHDR => [W, H], +acTL => [0x80000001, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + + +<h3>Sequence numbers</h3> + +<div class="case"> +<p>Not starting from 0. +<png> +IHDR => [W, H], +acTL => [2, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [1, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [2, create_surface(W, H, 'red')], +fcTL => [3, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [4, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Gap in sequence. +<png> +IHDR => [W, H], +acTL => [2, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [4, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Duplicated sequence number. +<png> +IHDR => [W, H], +acTL => [2, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [2, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Duplicated chunk. +<png> +IHDR => [W, H], +acTL => [2, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [3, create_surface(W, H, 'red')], +fdAT => [3, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Reordered fdAT chunks. +<png> +IHDR => [W, H], +acTL => [2, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT_split => [4, 32,-1, create_surface(W, H, 'red')], +fdAT_split => [3, 0,32, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Reordered sequence numbers. +<png> +IHDR => [W, H], +acTL => [2, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +fcTL => [2, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT_split => [4, 0,32, create_surface(W, H, 'red')], +fdAT_split => [3, 32,-1, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>Separated fdAT and fcTL sequences. +<png> +IHDR => [W, H], +acTL => [2, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [0, create_surface(W, H, 'red')], +fcTL => [1, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + + +<h3>Invalid image-data sizes</h3> + +<div class="case"> +<p>Default image's fcTL size not matching IHDR. +<png> +IHDR => [W, H], +acTL => [2, 0], +fcTL => [0, W, H/2, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +IDAT => [create_surface(W, H/2, 'red')], +fcTL => [1, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [2, create_surface(W, H, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>fdAT too small. +<png> +IHDR => [W, H], +acTL => [1, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H/2, 'red')], +IEND => [], +</png> +</div> + +<div class="case"> +<p>fdAT too large. +<png> +IHDR => [W, H], +acTL => [1, 0], +IDAT => [create_surface(W, H, 'green')], +fcTL => [0, W, H, 0, 0, 100, 100, DISPOSE_NONE, BLEND_OVER], +fdAT => [1, create_surface(W, H*2, 'red')], +IEND => [], +</png> +</div> + +<!-- TODO: invalid fcTL (negative offset, etc) --> + +<h2>References</h2> +<ul> +<li id="apng"><a href="http://wiki.mozilla.org/index.php?title=APNG_Specification&oldid=64503">APNG Specification 1.0</a> +<li id="png"><a href="http://www.w3.org/TR/PNG/">PNG Specification (Second Edition)</a> +</ul>
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