129 lines
3.7 KiB
HTML
129 lines
3.7 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<meta charset='utf-8'/>
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<script src='/tests/SimpleTest/SimpleTest.js'></script>
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<link rel='stylesheet' href='/tests/SimpleTest/test.css'>
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<script src='ensure-ext.js'></script>
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</head>
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<body>
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<script id='g_vs' type='text/plain'>
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void main() {
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gl_PointSize = 1.0;
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}
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</script>
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<script id='g_fs' type='text/plain'>
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void main() {
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gl_FragColor = vec4(0);
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}
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</script>
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<script>
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'use strict';
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let gl = null;
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function CheckTexFloatRenderable(rgbaInternal, type) {
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const tex = gl.createTexture();
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gl.bindTexture(gl.TEXTURE_2D, tex);
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gl.texImage2D(gl.TEXTURE_2D, 0, rgbaInternal, 1, 1, 0, gl.RGBA, type, null);
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const fb = gl.createFramebuffer();
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gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
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gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0);
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return gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE;
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}
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function CheckRbFloatRenderable(format) {
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const rb = gl.createRenderbuffer();
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gl.bindRenderbuffer(gl.RENDERBUFFER, rb);
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gl.renderbufferStorage(gl.RENDERBUFFER, format, 1, 1);
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const fb = gl.createFramebuffer();
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gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
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gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rb);
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return gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE;
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}
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function CheckBlending() {
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function CompileShader(type, elem) {
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const text = elem.innerHTML.trim();
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const s = gl.createShader(type);
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gl.shaderSource(s, text);
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gl.compileShader(s);
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return s;
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}
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const vs = CompileShader(gl.VERTEX_SHADER, g_vs);
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const fs = CompileShader(gl.FRAGMENT_SHADER, g_fs);
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const p = gl.createProgram();
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gl.attachShader(p, vs);
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gl.attachShader(p, fs);
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gl.linkProgram(p);
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gl.useProgram(p);
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gl.drawArrays(gl.POINTS, 0, 1);
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if (gl.getError()) throw new Error('Unexpected GL error,');
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gl.enable(gl.BLEND);
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gl.drawArrays(gl.POINTS, 0, 1);
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return gl.getError() == 0;
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}
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function ResetGl(type) {
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if (gl) {
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const ext = gl.getExtension('WEBGL_lose_context');
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ext.loseContext();
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gl = null;
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}
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const c = document.createElement('canvas');
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gl = c.getContext(type);
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return !!gl;
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}
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function HasExt(name) {
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return gl.getSupportedExtensions().indexOf(name) != -1;
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}
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ResetGl('webgl');
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if (HasExt('EXT_color_buffer_half_float')) {
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const ext = gl.getExtension('OES_texture_half_float');
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const implicitEnabled = CheckTexFloatRenderable(gl.RGBA, ext.HALF_FLOAT_OES);
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ok(implicitEnabled, 'OES_texture_half_float should implicitly enable EXT_color_buffer_half_float.');
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}
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ResetGl('webgl');
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if (HasExt('WEBGL_color_buffer_float')) {
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const ext = gl.getExtension('OES_texture_float');
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const implicitEnabled = CheckTexFloatRenderable(gl.RGBA, gl.FLOAT);
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ok(implicitEnabled, 'OES_texture_float should implicitly enable WEBGL_color_buffer_float.');
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if (HasExt('EXT_float_blend')) {
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ok(CheckBlending(), 'OES_texture_float should implicitly enable EXT_float_blend.');
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}
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}
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ResetGl('webgl');
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if (HasExt('EXT_float_blend')) {
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const ext = gl.getExtension('WEBGL_color_buffer_float');
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CheckRbFloatRenderable(ext.RGBA32F_EXT);
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const implicitEnabled = CheckBlending();
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ok(implicitEnabled, 'WEBGL_color_buffer_float should implicitly enable EXT_float_blend.');
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}
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if (ResetGl('webgl2')) {
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if (HasExt('EXT_float_blend')) {
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const ext = gl.getExtension('EXT_color_buffer_float');
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CheckTexFloatRenderable(gl.RGBA32F, gl.FLOAT);
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const implicitEnabled = CheckBlending();
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ok(implicitEnabled, 'EXT_color_buffer_float should implicitly enable EXT_float_blend.');
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}
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}
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</script>
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</body>
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</html>
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