mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
132 lines
3.9 KiB
HTML
132 lines
3.9 KiB
HTML
<!--
|
|
Copyright (c) 2010 The Chromium Authors. All rights reserved.
|
|
Use of this source code is governed by a BSD-style license that can be
|
|
found in the LICENSE file.
|
|
-->
|
|
<html>
|
|
<head>
|
|
<link rel="stylesheet" href="../resources/js-test-style.css"/>
|
|
<script src="../resources/js-test-pre.js"></script>
|
|
<script src="resources/webgl-test.js"></script>
|
|
<script id="vshader" type="x-shader/x-vertex">
|
|
attribute vec3 g_Position;
|
|
attribute vec2 g_TexCoord0;
|
|
|
|
varying vec2 texCoord;
|
|
|
|
void main()
|
|
{
|
|
gl_Position = vec4(g_Position.x, g_Position.y, g_Position.z, 1.0);
|
|
texCoord = g_TexCoord0;
|
|
}
|
|
</script>
|
|
|
|
<script id="fshader" type="x-shader/x-fragment">
|
|
uniform sampler2D tex;
|
|
varying vec2 texCoord;
|
|
|
|
void main()
|
|
{
|
|
float intensity = texture2D(tex, texCoord).a;
|
|
gl_FragColor = vec4(intensity, intensity, intensity, 1.0);
|
|
}
|
|
</script>
|
|
|
|
</head>
|
|
<body>
|
|
<canvas id="example" width="256px" height="1px"></canvas>
|
|
<div id="description"></div>
|
|
<div id="console"></div>
|
|
<script>
|
|
description('Tests texSubImage2D upload path from WebGLUnsignedByteArray');
|
|
|
|
debug('');
|
|
|
|
var gl = initWebGL("example", "vshader", "fshader", [ "g_Position", "g_TexCoord0" ], [ 0, 0, 0, 1 ], 1);
|
|
var textureWidth = 256;
|
|
var textureHeight = 1;
|
|
|
|
textureLoc = gl.getUniformLocation(gl.program, "tex");
|
|
|
|
var vertices = new WebGLFloatArray([
|
|
1.0, 1.0, 0.0,
|
|
-1.0, 1.0, 0.0,
|
|
-1.0, -1.0, 0.0,
|
|
1.0, 1.0, 0.0,
|
|
-1.0, -1.0, 0.0,
|
|
1.0, -1.0, 0.0]);
|
|
var texCoords = new WebGLFloatArray([
|
|
1.0, 1.0,
|
|
0.0, 1.0,
|
|
0.0, 0.0,
|
|
1.0, 1.0,
|
|
0.0, 0.0,
|
|
1.0, 0.0]);
|
|
var texCoordOffset = vertices.byteLength;
|
|
|
|
var vbo = gl.createBuffer();
|
|
gl.bindBuffer(gl.ARRAY_BUFFER, vbo);
|
|
gl.bufferData(gl.ARRAY_BUFFER,
|
|
texCoordOffset + texCoords.byteLength,
|
|
gl.STATIC_DRAW);
|
|
gl.bufferSubData(gl.ARRAY_BUFFER, 0, vertices);
|
|
gl.bufferSubData(gl.ARRAY_BUFFER, texCoordOffset, texCoords);
|
|
|
|
gl.enableVertexAttribArray(0);
|
|
gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0);
|
|
gl.enableVertexAttribArray(1);
|
|
gl.vertexAttribPointer(1, 2, gl.FLOAT, gl.FALSE, 0, texCoordOffset);
|
|
|
|
var texture = gl.createTexture();
|
|
gl.bindTexture(gl.TEXTURE_2D, texture);
|
|
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
|
|
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
|
|
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
|
|
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
|
|
// Allocate the texture object
|
|
gl.texImage2D(gl.TEXTURE_2D, 0, gl.ALPHA, textureWidth, textureHeight, 0, gl.ALPHA, gl.UNSIGNED_BYTE, null);
|
|
// Prepare the image data
|
|
var array = new WebGLUnsignedByteArray(textureWidth);
|
|
for (var i = 0; i < textureWidth; i++)
|
|
array[i] = i;
|
|
// Fill the texture object with data -- this is actually the code path being tested
|
|
gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, textureWidth, textureHeight, gl.ALPHA, gl.UNSIGNED_BYTE, array);
|
|
|
|
// Clear and set up
|
|
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
|
|
gl.bindTexture(gl.TEXTURE_2D, texture);
|
|
gl.useProgram(gl.program);
|
|
gl.uniform1i(textureLoc, 0);
|
|
// Draw the texture to the frame buffer
|
|
gl.drawArrays(gl.TRIANGLES, 0, 6);
|
|
|
|
// Read back the frame buffer
|
|
var buf = new Uint8Array(textureWidth * textureHeight * 4);
|
|
gl.readPixels(0, 0, textureWidth, textureHeight, gl.RGBA, gl.UNSIGNED_BYTE, buf);
|
|
|
|
// Verify the frame buffer's contents
|
|
var passed = true;
|
|
for (var i = 0; i < textureWidth; i++) {
|
|
var val = i;
|
|
if (buf[4 * i + 0] != val ||
|
|
buf[4 * i + 1] != val ||
|
|
buf[4 * i + 2] != val) {
|
|
testFailed("pixel at (" + i + ", 0) was (" +
|
|
buf[4 * i + 0] + ", " +
|
|
buf[4 * i + 1] + ", " +
|
|
buf[4 * i + 2] + "), should be (" +
|
|
val + ", " + val + ", " + val + ")");
|
|
passed = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (passed)
|
|
testPassed("");
|
|
|
|
successfullyParsed = true;
|
|
</script>
|
|
<script src="../resources/js-test-post.js"></script>
|
|
</body>
|
|
</html>
|