Bug 782860 - Add basic WebGL reftests - r=bjacob

This commit is contained in:
Jeff Gilbert 2012-09-06 18:46:39 -07:00
parent ce3ac17c14
commit df14baa628
20 changed files with 717 additions and 1 deletions

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# WebGL Reftests!
# If you add new tests, don't forget to add sanity (&nogl) tests! (if needed)
# Check that disabling works:
== webgl-disable-test.html?nogl wrapper.html?green.png
pref(webgl.disabled,true) == webgl-disable-test.html wrapper.html?green.png
# Basic WebGL tests:
# Do we get pixels to the screen at all?
# Try to just hit the different rendering paths here.
# Test: {aa, alpha, preserve, readback} = 16
== webgl-clear-test.html?nogl wrapper.html?green.png
== webgl-clear-test.html?__&_____&________ wrapper.html?green.png
== webgl-clear-test.html?aa&_____&________ wrapper.html?green.png
== webgl-clear-test.html?__&alpha&________ wrapper.html?green.png
== webgl-clear-test.html?aa&alpha&________ wrapper.html?green.png
== webgl-clear-test.html?__&_____&preserve wrapper.html?green.png
== webgl-clear-test.html?aa&_____&preserve wrapper.html?green.png
== webgl-clear-test.html?__&alpha&preserve wrapper.html?green.png
== webgl-clear-test.html?aa&alpha&preserve wrapper.html?green.png
pref(webgl.force-layers-readback,true) == webgl-clear-test.html?readback&__&_____&________ wrapper.html?green.png
pref(webgl.force-layers-readback,true) == webgl-clear-test.html?readback&aa&_____&________ wrapper.html?green.png
pref(webgl.force-layers-readback,true) == webgl-clear-test.html?readback&__&alpha&________ wrapper.html?green.png
pref(webgl.force-layers-readback,true) == webgl-clear-test.html?readback&aa&alpha&________ wrapper.html?green.png
pref(webgl.force-layers-readback,true) == webgl-clear-test.html?readback&__&_____&preserve wrapper.html?green.png
pref(webgl.force-layers-readback,true) == webgl-clear-test.html?readback&aa&_____&preserve wrapper.html?green.png
pref(webgl.force-layers-readback,true) == webgl-clear-test.html?readback&__&alpha&preserve wrapper.html?green.png
pref(webgl.force-layers-readback,true) == webgl-clear-test.html?readback&aa&alpha&preserve wrapper.html?green.png
# Check orientation:
== webgl-orientation-test.html?nogl wrapper.html?white-top-left.png
== webgl-orientation-test.html?__&_____&________ wrapper.html?white-top-left.png
== webgl-orientation-test.html?aa&_____&________ wrapper.html?white-top-left.png
== webgl-orientation-test.html?__&alpha&________ wrapper.html?white-top-left.png
== webgl-orientation-test.html?aa&alpha&________ wrapper.html?white-top-left.png
== webgl-orientation-test.html?__&_____&preserve wrapper.html?white-top-left.png
== webgl-orientation-test.html?aa&_____&preserve wrapper.html?white-top-left.png
== webgl-orientation-test.html?__&alpha&preserve wrapper.html?white-top-left.png
== webgl-orientation-test.html?aa&alpha&preserve wrapper.html?white-top-left.png
pref(webgl.force-layers-readback,true) == webgl-orientation-test.html?readback&__&_____&________ wrapper.html?white-top-left.png
pref(webgl.force-layers-readback,true) == webgl-orientation-test.html?readback&aa&_____&________ wrapper.html?white-top-left.png
pref(webgl.force-layers-readback,true) == webgl-orientation-test.html?readback&__&alpha&________ wrapper.html?white-top-left.png
pref(webgl.force-layers-readback,true) == webgl-orientation-test.html?readback&aa&alpha&________ wrapper.html?white-top-left.png
pref(webgl.force-layers-readback,true) == webgl-orientation-test.html?readback&__&_____&preserve wrapper.html?white-top-left.png
pref(webgl.force-layers-readback,true) == webgl-orientation-test.html?readback&aa&_____&preserve wrapper.html?white-top-left.png
pref(webgl.force-layers-readback,true) == webgl-orientation-test.html?readback&__&alpha&preserve wrapper.html?white-top-left.png
pref(webgl.force-layers-readback,true) == webgl-orientation-test.html?readback&aa&alpha&preserve wrapper.html?white-top-left.png
# Does we draw the correct color in the correct places with all context creation options?
# (Note that our context creation option matrix is 2^6 = 64)
== webgl-color-test.html?nogl wrapper.html?colors.png
== webgl-color-test.html?__&_____&_____&_______&________&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&_____&_____&_______&________&_______ wrapper.html?colors.png
== webgl-color-test.html?__&alpha&_____&_______&________&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&_____&_______&________&_______ wrapper.html?colors.png
== webgl-color-test.html?__&_____&depth&_______&________&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&_____&depth&_______&________&_______ wrapper.html?colors.png
== webgl-color-test.html?__&alpha&depth&_______&________&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&depth&_______&________&_______ wrapper.html?colors.png
== webgl-color-test.html?__&_____&_____&premult&________&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&_____&_____&premult&________&_______ wrapper.html?colors.png
== webgl-color-test.html?__&alpha&_____&premult&________&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&_____&premult&________&_______ wrapper.html?colors.png
== webgl-color-test.html?__&_____&depth&premult&________&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&_____&depth&premult&________&_______ wrapper.html?colors.png
== webgl-color-test.html?__&alpha&depth&premult&________&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&depth&premult&________&_______ wrapper.html?colors.png
== webgl-color-test.html?__&_____&_____&_______&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&_____&_____&_______&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?__&alpha&_____&_______&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&_____&_______&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?__&_____&depth&_______&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&_____&depth&_______&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?__&alpha&depth&_______&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&depth&_______&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?__&_____&_____&premult&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&_____&_____&premult&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?__&alpha&_____&premult&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&_____&premult&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?__&_____&depth&premult&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&_____&depth&premult&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?__&alpha&depth&premult&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&depth&premult&preserve&_______ wrapper.html?colors.png
== webgl-color-test.html?__&_____&_____&_______&________&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&_____&_____&_______&________&stencil wrapper.html?colors.png
== webgl-color-test.html?__&alpha&_____&_______&________&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&_____&_______&________&stencil wrapper.html?colors.png
== webgl-color-test.html?__&_____&depth&_______&________&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&_____&depth&_______&________&stencil wrapper.html?colors.png
== webgl-color-test.html?__&alpha&depth&_______&________&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&depth&_______&________&stencil wrapper.html?colors.png
== webgl-color-test.html?__&_____&_____&premult&________&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&_____&_____&premult&________&stencil wrapper.html?colors.png
== webgl-color-test.html?__&alpha&_____&premult&________&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&_____&premult&________&stencil wrapper.html?colors.png
== webgl-color-test.html?__&_____&depth&premult&________&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&_____&depth&premult&________&stencil wrapper.html?colors.png
== webgl-color-test.html?__&alpha&depth&premult&________&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&depth&premult&________&stencil wrapper.html?colors.png
== webgl-color-test.html?__&_____&_____&_______&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&_____&_____&_______&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?__&alpha&_____&_______&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&_____&_______&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?__&_____&depth&_______&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&_____&depth&_______&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?__&alpha&depth&_______&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&depth&_______&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?__&_____&_____&premult&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&_____&_____&premult&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?__&alpha&_____&premult&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&_____&premult&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?__&_____&depth&premult&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&_____&depth&premult&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?__&alpha&depth&premult&preserve&stencil wrapper.html?colors.png
== webgl-color-test.html?aa&alpha&depth&premult&preserve&stencil wrapper.html?colors.png
# Check a smaller selection for readback:
pref(webgl.force-layers-readback,true) == webgl-color-test.html?readback&__&_____&________ wrapper.html?colors.png
pref(webgl.force-layers-readback,true) == webgl-color-test.html?readback&aa&_____&________ wrapper.html?colors.png
pref(webgl.force-layers-readback,true) == webgl-color-test.html?readback&__&alpha&________ wrapper.html?colors.png
pref(webgl.force-layers-readback,true) == webgl-color-test.html?readback&aa&alpha&________ wrapper.html?colors.png
pref(webgl.force-layers-readback,true) == webgl-color-test.html?readback&__&_____&preserve wrapper.html?colors.png
pref(webgl.force-layers-readback,true) == webgl-color-test.html?readback&aa&_____&preserve wrapper.html?colors.png
pref(webgl.force-layers-readback,true) == webgl-color-test.html?readback&__&alpha&preserve wrapper.html?colors.png
pref(webgl.force-layers-readback,true) == webgl-color-test.html?readback&aa&alpha&preserve wrapper.html?colors.png
# Check alpha behavior:
== webgl-color-alpha-test.html?colorVal=1.0&alphaVal=1.0&nogl wrapper.html?colors.png
== webgl-color-alpha-test.html?colorVal=1.0&alphaVal=1.0 wrapper.html?colors.png
fuzzy(1,65536) == webgl-color-alpha-test.html?colorVal=0.5&alphaVal=1.0&nogl wrapper.html?half-colors.png
fuzzy(1,65536) == webgl-color-alpha-test.html?colorVal=0.5&alphaVal=1.0 wrapper.html?half-colors.png
== webgl-color-alpha-test.html?colorVal=0.0&alphaVal=1.0&nogl wrapper.html?black.png
== webgl-color-alpha-test.html?colorVal=0.0&alphaVal=1.0 wrapper.html?black.png
== webgl-color-alpha-test.html?colorVal=1.0&alphaVal=0.0&nogl wrapper.html?colors.png
== webgl-color-alpha-test.html?colorVal=1.0&alphaVal=0.0 wrapper.html?colors.png
== webgl-color-alpha-test.html?colorVal=1.0&alphaVal=0.0&alpha&nogl wrapper.html?white.png
== webgl-color-alpha-test.html?colorVal=1.0&alphaVal=0.0&alpha wrapper.html?white.png
# Test premult:
fuzzy(1,65536) == webgl-color-alpha-test.html?colorVal=1.0&alphaVal=0.5&alpha&nogl wrapper.html?colors-half-alpha.png
fuzzy(1,65536) == webgl-color-alpha-test.html?colorVal=1.0&alphaVal=0.5&alpha wrapper.html?colors-half-alpha.png
fuzzy(1,65536) == webgl-color-alpha-test.html?colorVal=0.5&alphaVal=0.5&alpha&nogl wrapper.html?half-colors-half-alpha.png
fuzzy(1,65536) == webgl-color-alpha-test.html?colorVal=0.5&alphaVal=0.5&alpha wrapper.html?half-colors-half-alpha.png
fuzzy(1,65536) == webgl-color-alpha-test.html?colorVal=0.5&alphaVal=0.5&alpha&premult&nogl wrapper.html?colors-half-alpha.png
fuzzy(1,65536) == webgl-color-alpha-test.html?colorVal=0.5&alphaVal=0.5&alpha&premult wrapper.html?colors-half-alpha.png
# Test over-bright premult:
fuzzy(1,65536) == webgl-color-alpha-test.html?colorVal=1.0&alphaVal=0.5&alpha&premult&nogl wrapper.html?colors-half-alpha.png
fuzzy(1,65536) == webgl-color-alpha-test.html?colorVal=1.0&alphaVal=0.5&alpha&premult wrapper.html?colors-half-alpha.png
# Check for hanging framebuffer bindings:
== webgl-hanging-fb-test.html?nogl wrapper.html?green.png
== webgl-hanging-fb-test.html wrapper.html?green.png
== webgl-hanging-fb-test.html?aa wrapper.html?green.png
pref(webgl.force-layers-readback,true) == webgl-hanging-fb-test.html?readback wrapper.html?green.png
pref(webgl.force-layers-readback,true) == webgl-hanging-fb-test.html?readback&aa wrapper.html?green.png
== webgl-hanging-scissor-test.html wrapper.html?green.png
== webgl-hanging-scissor-test.html?aa wrapper.html?green.png
pref(webgl.force-layers-readback,true) == webgl-hanging-scissor-test.html?readback wrapper.html?green.png
pref(webgl.force-layers-readback,true) == webgl-hanging-scissor-test.html?readback&aa wrapper.html?green.png
# Check that our experimental prefs still work:
# 16bpp:
pref(webgl.prefer-16bpp,true) == webgl-color-test.html?16bpp wrapper.html?colors.png
pref(webgl.prefer-16bpp,true) pref(webgl.force-layers-readback,true) == webgl-color-test.html?16bpp&readback wrapper.html?colors.png
# Force native GL (Windows):
skip-if(!winWidget) pref(webgl.prefer-native-gl,true) == webgl-clear-test.html?native-gl wrapper.html?green.png
skip-if(!winWidget) pref(webgl.prefer-native-gl,true) == webgl-orientation-test.html?native-gl wrapper.html?white-top-left.png
skip-if(!winWidget) pref(webgl.prefer-native-gl,true) == webgl-color-test.html?native-gl wrapper.html?colors.png
skip-if(!winWidget) pref(webgl.prefer-native-gl,true) pref(webgl.prefer-16bpp,true) == webgl-color-test.html?native-gl&16bpp wrapper.html?colors.png

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript" src="webgl-utils.js"></script>
<script type="text/javascript">
/* Clear Test
*
* Clear the canvas to green to test that we get pixels to the screen.
*/
"use strict";
function renderGL(gl) {
gl.clearColor(0.0, 1.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.finish();
}
function renderBackup(canvas) {
var context = canvas.getContext("2d");
context.fillStyle = "rgba(0, 255, 0, 1.0)";
context.fillRect(0, 0, 256, 256);
}
function onLoad() {
var canvas = document.getElementById("canvas");
var gl = initGL(canvas);
if (gl)
renderGL(gl);
else
renderBackup(canvas);
}
</script>
</head>
<body onload="onLoad();">
<canvas id="canvas" width="256" height="256"></canvas>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript" src="webgl-utils.js"></script>
<script type="text/javascript">
/* Color-Alpha Test
*
* Clear the four quadrants of the canvas as follows:
* +------+------+
* | red |green |
* | | |
* +------+------+
* | blue |white |
* | | |
* +------+------+
* However, unlike the Color test, clear with a given alpha value.
* What effect this has depends on the context-creation args passed
* to this page.
*
* Here we check that we handle various combinations of alpha and
* premultipliedAlpha correctly.
*/
"use strict";
function renderGL(gl, value, alpha) {
gl.enable(gl.SCISSOR_TEST);
gl.scissor(0, 128, 128, 128);
gl.clearColor(value, 0.0, 0.0, alpha);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.scissor(128, 128, 128, 128);
gl.clearColor(0.0, value, 0.0, alpha);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.scissor(0, 0, 128, 128);
gl.clearColor(0.0, 0.0, value, alpha);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.scissor(128, 0, 128, 128);
gl.clearColor(value, value, value, alpha);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.finish();
}
function renderBackup(canvas, value, alpha) {
if (!arg("alpha"))
alpha = 1.0;
if (arg("alpha") && arg("premult")) {
if (alpha == 0.0)
value = 1.0;
else
value /= alpha;
}
var intValue = (value * 255) | 0;
var context = canvas.getContext("2d");
context.fillStyle = "rgba(" + intValue + ", 0, 0, " + alpha + ")";
context.fillRect(0, 0, 128, 128);
context.fillStyle = "rgba(0, " + intValue + ", 0, " + alpha + ")";
context.fillRect(128, 0, 128, 128);
context.fillStyle = "rgba(0, 0, " + intValue + ", " + alpha + ")";
context.fillRect(0, 128, 128, 128);
context.fillStyle = "rgba(" + intValue + ", " + intValue + ", " + intValue + ", " + alpha + ")";
context.fillRect(128, 128, 128, 128);
}
function onLoad() {
var canvas = document.getElementById("canvas");
var gl = initGL(canvas);
var value = arg("colorVal");
var alpha = arg("alphaVal");
if (gl)
renderGL(gl, value, alpha);
else
renderBackup(canvas, value, alpha);
}
</script>
</head>
<body onload="onLoad();">
<canvas id="canvas" width="256" height="256"></canvas>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript" src="webgl-utils.js"></script>
<script type="text/javascript">
/* Color Test
*
* Clear the four quadrants of the canvas as follows:
* +------+------+
* | red |green |
* | | |
* +------+------+
* | blue |white |
* | | |
* +------+------+
*
* This is for checking that we're getting the right colors when
* we ask for them. This combined with the Orientation test assure
* that we are getting the correct colors in the correct places.
*/
"use strict";
function renderGL(gl) {
gl.enable(gl.SCISSOR_TEST);
gl.scissor(0, 128, 128, 128);
gl.clearColor(1.0, 0.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.scissor(128, 128, 128, 128);
gl.clearColor(0.0, 1.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.scissor(0, 0, 128, 128);
gl.clearColor(0.0, 0.0, 1.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.scissor(128, 0, 128, 128);
gl.clearColor(1.0, 1.0, 1.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.finish();
}
function renderBackup(canvas) {
var context = canvas.getContext("2d");
context.fillStyle = "rgba(255, 0, 0, 1.0)";
context.fillRect(0, 0, 128, 128);
context.fillStyle = "rgba(0, 255, 0, 1.0)";
context.fillRect(128, 0, 128, 128);
context.fillStyle = "rgba(0, 0, 255, 1.0)";
context.fillRect(0, 128, 128, 128);
context.fillStyle = "rgba(255, 255, 255, 1.0)";
context.fillRect(128, 128, 128, 128);
}
function onLoad() {
var canvas = document.getElementById("canvas");
var gl = initGL(canvas);
if (gl)
renderGL(gl);
else
renderBackup(canvas);
}
</script>
</head>
<body onload="onLoad();">
<canvas id="canvas" width="256" height="256"></canvas>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript" src="webgl-utils.js"></script>
<script type="text/javascript">
/* Disable Test
*
* If we succeed in getting a WebGL context, we will fill
* the canvas with red. If we fail to acquire a WebGL context,
* we will use Canvas2D to instead fill it with green.
*
* Note that this test differs from the others in that
* it will draw differently if it receives a WebGL context.
* Other tests are designed to fallback silently to Canvas2D.
*
* We use this test to assure that when we disable WebGL,
* WebGL does not function. This is trivially true for systems
* that don't support WebGL. This test is not viable for testing
* that WebGL works, as blocklisted systems will always draw green.
*/
"use strict";
function renderGL(gl) {
gl.clearColor(1.0, 0.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.finish();
}
function renderBackup(canvas) {
var context = canvas.getContext("2d");
context.fillStyle = "rgba(0, 255, 0, 1.0)";
context.fillRect(0, 0, 256, 256);
}
function onLoad() {
var canvas = document.getElementById("canvas");
var gl = initGL(canvas);
if (gl)
renderGL(gl);
else
renderBackup(canvas);
}
</script>
</head>
<body onload="onLoad();">
<canvas id="canvas" width="256" height="256"></canvas>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript" src="webgl-utils.js"></script>
<script type="text/javascript">
/* Hanging Framebuffer Test
*
* Clear the canvas to green, but create and bind a new framebuffer
* before returning. This will fail if we blindly read from the bound
* framebuffer, instead of binding to the screen and reading from that.
*
* How failure looks isn't well defined, since this is an empty framebuffer,
* thus is incomplete, and should cause errors if it's read from.
*/
"use strict";
function renderGL(gl) {
gl.clearColor(0.0, 1.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
var fb = gl.createFramebuffer();
gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
gl.finish();
}
function renderBackup(canvas) {
var context = canvas.getContext("2d");
context.fillStyle = "rgba(0, 255, 0, 1.0)";
context.fillRect(0, 0, 256, 256);
}
function onLoad() {
var canvas = document.getElementById("canvas");
var gl = initGL(canvas);
if (gl)
renderGL(gl);
else
renderBackup(canvas);
}
</script>
</head>
<body onload="onLoad();">
<canvas id="canvas" width="256" height="256"></canvas>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript" src="webgl-utils.js"></script>
<script type="text/javascript">
/* Hanging Scissor Test
*
* Clear the canvas to green, but create and enable and set scissor values
* before returning. This can fail if we blindly blit or read from the screen
* without disabling scissor-test.
*
* Failure should look like only the top-left quadrant is rendered.
*/
"use strict";
function renderGL(gl) {
gl.clearColor(0.0, 1.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.enable(gl.SCISSOR_TEST);
gl.scissor(0, 128, 128, 128);
gl.finish();
}
function renderBackup(canvas) {
var context = canvas.getContext("2d");
context.fillStyle = "rgba(0, 255, 0, 1.0)";
context.fillRect(0, 0, 256, 256);
}
function onLoad() {
var canvas = document.getElementById("canvas");
var gl = initGL(canvas);
if (gl)
renderGL(gl);
else
renderBackup(canvas);
}
</script>
</head>
<body onload="onLoad();">
<canvas id="canvas" width="256" height="256"></canvas>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript" src="webgl-utils.js"></script>
<script type="text/javascript">
/* Orientation Test
*
* Clear the canvas to black, and clear the upper-left quadrant
* to white. If this doesn't pass, but the Clear test does, then
* likely y-flip is wrong.
*/
"use strict";
function renderGL(gl) {
gl.clearColor(0.0, 0.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.enable(gl.SCISSOR_TEST);
gl.scissor(0, 128, 128, 128);
gl.clearColor(1.0, 1.0, 1.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.finish();
}
function renderBackup(canvas) {
var context = canvas.getContext("2d");
context.fillStyle = "rgba(0, 0, 0, 1.0)";
context.fillRect(0, 0, 256, 256);
context.fillStyle = "rgba(255, 255, 255, 1.0)";
context.fillRect(0, 0, 128, 128);
}
function onLoad() {
var canvas = document.getElementById("canvas");
var gl = initGL(canvas);
if (gl)
renderGL(gl);
else
renderBackup(canvas);
}
</script>
</head>
<body onload="onLoad();">
<canvas id="canvas" width="256" height="256"></canvas>
</body>
</html>

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"use strict";
function parseArgs() {
var query = window.location.search.substring(1);
var split = query.split("&");
var args = {}
for (var i = 0; i < split.length; i++) {
var pair = split[i].split("=");
var key = pair[0];
var value = true;
if (pair.length >= 2) {
eval("value = " + decodeURIComponent(pair[1]) + ";");
}
args[key] = value;
}
return args;
}
var gArgs = null;
function arg(key) {
if (gArgs === null) {
gArgs = parseArgs();
}
var ret = gArgs[key];
if (ret === undefined)
ret = false;
return ret;
}
function initGL(canvas) {
if (arg("nogl"))
return null;
var gl = null;
var withAA = arg("aa");
var withAlpha = arg("alpha");
var withDepth = arg("depth");
var withPremult = arg("premult");
var withPreserve = arg("preserve");
var withStencil = arg("stencil");
try {
var argDict = {
alpha: withAlpha,
depth: withDepth,
stencil: withStencil,
antialias: withAA,
premultipliedAlpha: withPremult,
preserveDrawingBuffer: withPreserve,
};
gl = canvas.getContext("experimental-webgl", argDict);
} catch(e) {}
return gl;
}

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<!DOCTYPE HTML>
<html class="reftest-wait">
<head>
<title>Image reftest wrapper</title>
<style type="text/css">
#image1 { background-color: rgb(10, 100, 250); }
</style>
<script>
// The image is loaded async after the page loads
// wait for it to finish loading
function onImageLoad() {
document.documentElement.removeAttribute("class");
};
</script>
</head>
<body>
<img id="image1">
<script>
// Use as "wrapper.html?image.png"
var imgURL = document.location.search.substr(1);
document.images[0].onload = onImageLoad;
document.images[0].onerror = onImageLoad;
document.images[0].src = imgURL;
</script>
</body>
</html>

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@ -1,3 +1,8 @@
# Canvas reftests
# From: /content/test/reftest
# To: /content/canvas/test/reftest
include ../../canvas/test/reftest/reftest.list
== bug453105.html bug453105-ref.html
== optiontext.html optiontext-ref.html
== bug456008.xhtml bug456008-ref.html

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@ -16,7 +16,7 @@
<body>
<img id="image1">
<script>
// Use as "wrapper.html?image.png
// Use as "wrapper.html?image.png"
var imgURL = document.location.search.substr(1);
document.images[0].onload = onImageLoad;
document.images[0].onerror = onImageLoad;