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-rw-r--r--dom/canvas/test/webgl-conf/checkout/js/tests/oes-texture-float-and-half-float-linear.js151
1 files changed, 151 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/js/tests/oes-texture-float-and-half-float-linear.js b/dom/canvas/test/webgl-conf/checkout/js/tests/oes-texture-float-and-half-float-linear.js
new file mode 100644
index 0000000000..362023ce01
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+++ b/dom/canvas/test/webgl-conf/checkout/js/tests/oes-texture-float-and-half-float-linear.js
@@ -0,0 +1,151 @@
+/*
+Copyright (c) 2019 The Khronos Group Inc.
+Use of this source code is governed by an MIT-style license that can be
+found in the LICENSE.txt file.
+*/
+
+function testTexLinear(gl, extensionName, internalFormatWebgl2, pixelType) {
+ var wtu = WebGLTestUtils;
+
+ // Before the extension is enabled
+ var extensionEnabled = false;
+ runTestSuite(extensionEnabled);
+
+ if (!gl.getExtension(extensionName))
+ testPassed("No " + extensionName + " support -- this is legal");
+ else {
+ // After the extension is enabled
+ extensionEnabled = true;
+ runTestSuite(extensionEnabled);
+ }
+
+ function runTestSuite(extensionEnabled)
+ {
+ var magF = [gl.NEAREST, gl.LINEAR];
+ var minF = [gl.NEAREST, gl.LINEAR, gl.NEAREST_MIPMAP_NEAREST, gl.NEAREST_MIPMAP_LINEAR, gl.LINEAR_MIPMAP_NEAREST, gl.LINEAR_MIPMAP_LINEAR];
+ var tex2DFShader = [
+ 'uniform sampler2D tex;',
+ 'void main() {',
+ ' gl_FragData[0] = texture2D(tex, vec2(0.5, 0.5)) * vec4(4.0, 2.0, 2.0, 1);',
+ '}'].join('\n');
+
+ var positionVertexShader = [
+ 'attribute vec4 vPosition;',
+ 'void main() {',
+ ' gl_Position = vPosition;',
+ '}'].join('\n');
+
+ var texCubeFShader = [
+ 'uniform samplerCube tex;',
+ 'void main() {',
+ ' gl_FragColor = textureCube(tex, normalize(vec3(0.5, 0.5, 1))) * vec4(4.0, 2.0, 2.0, 1);',
+ '}'].join('\n');
+
+ var vs = wtu.loadShader(gl, positionVertexShader, gl.VERTEX_SHADER);
+ var fs_2d = wtu.loadShader(gl, tex2DFShader, gl.FRAGMENT_SHADER);
+ var fs_cube = wtu.loadShader(gl, texCubeFShader, gl.FRAGMENT_SHADER);
+
+ // TEXTURE_2D
+ var program = wtu.setupProgram(gl, [vs, fs_2d]);
+ gl.useProgram(program);
+ wtu.setupUnitQuad(gl);
+ for (var kk = 0; kk < 2; ++kk) {
+ for (var ii = 0; ii < 6; ++ii) {
+ var linear = false;
+ if (magF[kk] == gl.LINEAR || (minF[ii] != gl.NEAREST && minF[ii] != gl.NEAREST_MIPMAP_NEAREST))
+ linear = true;
+ var color = (!extensionEnabled && linear) ? [0, 0, 0, 255] : [255, 255, 255, 255];
+ runEachTest(gl.TEXTURE_2D, magF[kk], minF[ii], linear, extensionEnabled, color);
+ }
+ }
+
+ // TEXTURE_CUBE_MAP
+ var programCube = wtu.setupProgram(gl, [vs, fs_cube]);
+ gl.useProgram(programCube);
+ wtu.setupUnitQuad(gl);
+ for (var kk = 0; kk < 2; ++kk) {
+ for (var ii = 0; ii < 6; ++ii) {
+ var linear = false;
+ if (magF[kk] == gl.LINEAR || (minF[ii] != gl.NEAREST && minF[ii] != gl.NEAREST_MIPMAP_NEAREST))
+ linear = true;
+ var color = (!extensionEnabled && linear) ? [0, 0, 0, 255] : [255, 255, 255, 255];
+ runEachTest(gl.TEXTURE_CUBE_MAP, magF[kk], minF[ii], linear, extensionEnabled, color);
+ }
+ }
+ }
+
+ function runEachTest(textureTarget, magFilter, minFilter, linear, extensionEnabled, expected)
+ {
+ const format = gl.RGBA;
+ let internalFormat = format;
+ if (wtu.isWebGL2(gl)) {
+ internalFormat = gl[internalFormatWebgl2];
+ }
+ var numberOfChannels = 4;
+ debug("");
+ debug("testing target: " + wtu.glEnumToString(gl,textureTarget) +
+ ", testing format: " + wtu.glEnumToString(gl, format) +
+ ", magFilter is: " + wtu.glEnumToString(gl, magFilter) +
+ ", minFilter is: " + wtu.glEnumToString(gl, minFilter) +
+ ", " + extensionName + " is " + (extensionEnabled ? "enabled": "not enabled")
+ );
+
+ // Generate data.
+ var width = 4;
+ var height = 4;
+ var canvas2d = document.createElement('canvas');
+ canvas2d.width = width;
+ canvas2d.height = height;
+ var ctx2d = canvas2d.getContext('2d');
+ var color = [64, 128, 128, 255];
+ ctx2d.fillStyle = "rgba(" + color[0] + "," + color[1] + "," + color[2] + "," + color[3] + ")";
+ ctx2d.fillRect(0, 0, width, height);
+
+ var texture = gl.createTexture();
+ gl.bindTexture(textureTarget, texture);
+ gl.texParameteri(textureTarget, gl.TEXTURE_MAG_FILTER, magFilter);
+ gl.texParameteri(textureTarget, gl.TEXTURE_MIN_FILTER, minFilter);
+ gl.texParameteri(textureTarget, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+ gl.texParameteri(textureTarget, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+
+ if (textureTarget == gl.TEXTURE_2D) {
+ gl.texImage2D(gl.TEXTURE_2D, 0, internalFormat, format, gl[pixelType], canvas2d);
+ if (minFilter != gl.NEAREST && minFilter != gl.LINEAR) {
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors during texture setup");
+ gl.generateMipmap(gl.TEXTURE_2D);
+ if (gl.getError() != gl.NO_ERROR) {
+ debug("generateMipmap failed for floating-point TEXTURE_2D -- this is legal -- skipping the rest of this test");
+ return;
+ }
+ }
+ } else if (textureTarget == gl.TEXTURE_CUBE_MAP) {
+ var targets = [
+ gl.TEXTURE_CUBE_MAP_POSITIVE_X,
+ gl.TEXTURE_CUBE_MAP_NEGATIVE_X,
+ gl.TEXTURE_CUBE_MAP_POSITIVE_Y,
+ gl.TEXTURE_CUBE_MAP_NEGATIVE_Y,
+ gl.TEXTURE_CUBE_MAP_POSITIVE_Z,
+ gl.TEXTURE_CUBE_MAP_NEGATIVE_Z];
+ for (var tt = 0; tt < targets.length; ++tt)
+ gl.texImage2D(targets[tt], 0, internalFormat, format, gl[pixelType], canvas2d);
+ if (minFilter != gl.NEAREST && minFilter != gl.LINEAR) {
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors during texture setup");
+ gl.generateMipmap(gl.TEXTURE_CUBE_MAP);
+ if (gl.getError() != gl.NO_ERROR) {
+ debug("generateMipmap failed for floating-point TEXTURE_CUBE_MAP -- this is legal -- skipping the rest of this test");
+ return;
+ }
+ }
+ }
+ wtu.clearAndDrawUnitQuad(gl);
+ if (!linear) {
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, pixelType + " texture with non-Linear filter should succeed with NO_ERROR no matter whether " + extensionName + " is enabled or not");
+ } else if (!extensionEnabled) {
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, pixelType + " texture with Linear filter should produce [0, 0, 0, 1.0] with NO_ERROR if " + extensionName + " isn't enabled");
+ } else {
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, pixelType + " texture with Linear filter should succeed with NO_ERROR if " + extensionName + " is enabled");
+ }
+
+ wtu.checkCanvas(gl, expected, "should be " + expected[0] + "," + expected[1] + "," + expected[2] + "," + expected[3]);
+ }
+}
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