257 lines
10 KiB
JavaScript
257 lines
10 KiB
JavaScript
/*
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Copyright (c) 2019 The Khronos Group Inc.
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Use of this source code is governed by an MIT-style license that can be
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found in the LICENSE.txt file.
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*/
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function generateTest(internalFormat, pixelFormat, pixelType, prologue, resourcePath, defaultContextVersion) {
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var wtu = WebGLTestUtils;
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var tiu = TexImageUtils;
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var gl = null;
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var successfullyParsed = false;
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var imgCanvas;
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var redColor = [255, 0, 0];
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var greenColor = [0, 255, 0];
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function init()
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{
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description('Verify texImage2D and texSubImage2D code paths taking image elements (' + internalFormat + '/' + pixelFormat + '/' + pixelType + ')');
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// Set the default context version while still allowing the webglVersion URL query string to override it.
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wtu.setDefault3DContextVersion(defaultContextVersion);
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gl = wtu.create3DContext("example");
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if (!prologue(gl)) {
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finishTest();
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return;
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}
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switch (gl[pixelFormat]) {
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case gl.RED:
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case gl.RED_INTEGER:
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greenColor = [0, 0, 0];
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break;
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case gl.LUMINANCE:
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case gl.LUMINANCE_ALPHA:
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redColor = [255, 255, 255];
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greenColor = [0, 0, 0];
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break;
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case gl.ALPHA:
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redColor = [0, 0, 0];
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greenColor = [0, 0, 0];
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break;
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default:
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break;
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}
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gl.clearColor(0,0,0,1);
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gl.clearDepth(1);
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wtu.loadTexture(gl, resourcePath + "red-green.png", runTest);
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}
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function runOneIteration(image, useTexSubImage2D, flipY, topColor, bottomColor,
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sourceSubRectangle, bindingTarget, program)
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{
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sourceSubRectangleString = '';
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if (sourceSubRectangle) {
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sourceSubRectangleString = ' sourceSubRectangle=' + sourceSubRectangle;
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}
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debug('Testing ' + (useTexSubImage2D ? 'texSubImage2D' : 'texImage2D') +
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' with ' + image.width + 'x' + image.height + ' flipY=' + flipY + ' bindingTarget=' +
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(bindingTarget == gl.TEXTURE_2D ? 'TEXTURE_2D' : 'TEXTURE_CUBE_MAP') +
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sourceSubRectangleString);
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gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
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// Disable any writes to the alpha channel
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gl.colorMask(1, 1, 1, 0);
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var texture = gl.createTexture();
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// Bind the texture to texture unit 0
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gl.bindTexture(bindingTarget, texture);
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// Set up texture parameters
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gl.texParameteri(bindingTarget, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
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gl.texParameteri(bindingTarget, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
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// Set up pixel store parameters
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gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY);
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gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
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wtu.failIfGLError(gl, 'gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE);');
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var targets = [gl.TEXTURE_2D];
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if (bindingTarget == gl.TEXTURE_CUBE_MAP) {
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targets = [gl.TEXTURE_CUBE_MAP_POSITIVE_X,
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gl.TEXTURE_CUBE_MAP_NEGATIVE_X,
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gl.TEXTURE_CUBE_MAP_POSITIVE_Y,
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gl.TEXTURE_CUBE_MAP_NEGATIVE_Y,
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gl.TEXTURE_CUBE_MAP_POSITIVE_Z,
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gl.TEXTURE_CUBE_MAP_NEGATIVE_Z];
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}
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// Handle the source sub-rectangle if specified (WebGL 2.0 only)
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if (sourceSubRectangle) {
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gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, sourceSubRectangle[0]);
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gl.pixelStorei(gl.UNPACK_SKIP_ROWS, sourceSubRectangle[1]);
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}
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// Upload the image into the texture
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for (var tt = 0; tt < targets.length; ++tt) {
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if (sourceSubRectangle) {
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if (useTexSubImage2D) {
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// Initialize the texture to black first
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gl.texImage2D(targets[tt], 0, gl[internalFormat],
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sourceSubRectangle[2], sourceSubRectangle[3], 0,
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gl[pixelFormat], gl[pixelType], null);
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gl.texSubImage2D(targets[tt], 0, 0, 0,
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sourceSubRectangle[2], sourceSubRectangle[3],
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gl[pixelFormat], gl[pixelType], image);
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} else {
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gl.texImage2D(targets[tt], 0, gl[internalFormat],
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sourceSubRectangle[2], sourceSubRectangle[3], 0,
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gl[pixelFormat], gl[pixelType], image);
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}
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} else {
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if (useTexSubImage2D) {
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// Initialize the texture to black first
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gl.texImage2D(targets[tt], 0, gl[internalFormat], image.width, image.height, 0,
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gl[pixelFormat], gl[pixelType], null);
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gl.texSubImage2D(targets[tt], 0, 0, 0, gl[pixelFormat], gl[pixelType], image);
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} else {
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gl.texImage2D(targets[tt], 0, gl[internalFormat], gl[pixelFormat], gl[pixelType], image);
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}
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}
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}
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if (sourceSubRectangle) {
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gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, 0);
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gl.pixelStorei(gl.UNPACK_SKIP_ROWS, 0);
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}
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var loc;
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if (bindingTarget == gl.TEXTURE_CUBE_MAP) {
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loc = gl.getUniformLocation(program, "face");
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}
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for (var tt = 0; tt < targets.length; ++tt) {
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if (bindingTarget == gl.TEXTURE_CUBE_MAP) {
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gl.uniform1i(loc, targets[tt]);
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}
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// Draw the triangles
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wtu.clearAndDrawUnitQuad(gl, [0, 0, 0, 255]);
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// Check a few pixels near the top and bottom and make sure they have
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// the right color.
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debug("Checking lower left corner");
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wtu.checkCanvasRect(gl, 4, 4, 2, 2, bottomColor,
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"shouldBe " + bottomColor);
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debug("Checking upper left corner");
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wtu.checkCanvasRect(gl, 4, gl.canvas.height - 8, 2, 2, topColor,
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"shouldBe " + topColor);
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}
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}
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function runTestOnImage(image) {
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var cases = [
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{ sub: false, flipY: true, topColor: redColor, bottomColor: greenColor },
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{ sub: false, flipY: false, topColor: greenColor, bottomColor: redColor },
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{ sub: true, flipY: true, topColor: redColor, bottomColor: greenColor },
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{ sub: true, flipY: false, topColor: greenColor, bottomColor: redColor },
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];
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if (wtu.getDefault3DContextVersion() > 1) {
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cases = cases.concat([
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{ sub: false, flipY: false, topColor: redColor, bottomColor: redColor,
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sourceSubRectangle: [0, 0, 1, 1] },
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{ sub: false, flipY: true, topColor: greenColor, bottomColor: greenColor,
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sourceSubRectangle: [0, 0, 1, 1] },
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{ sub: false, flipY: false, topColor: greenColor, bottomColor: greenColor,
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sourceSubRectangle: [0, 1, 1, 1] },
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{ sub: false, flipY: true, topColor: redColor, bottomColor: redColor,
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sourceSubRectangle: [0, 1, 1, 1] },
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{ sub: true, flipY: false, topColor: redColor, bottomColor: redColor,
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sourceSubRectangle: [0, 0, 1, 1] },
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{ sub: true, flipY: true, topColor: greenColor, bottomColor: greenColor,
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sourceSubRectangle: [0, 0, 1, 1] },
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{ sub: true, flipY: false, topColor: greenColor, bottomColor: greenColor,
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sourceSubRectangle: [0, 1, 1, 1] },
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{ sub: true, flipY: true, topColor: redColor, bottomColor: redColor,
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sourceSubRectangle: [0, 1, 1, 1] },
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]);
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}
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var program = tiu.setupTexturedQuad(gl, internalFormat);
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for (var i in cases) {
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runOneIteration(image, cases[i].sub, cases[i].flipY,
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cases[i].topColor, cases[i].bottomColor,
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cases[i].sourceSubRectangle,
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gl.TEXTURE_2D, program);
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}
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// cube map texture must be square.
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if (image.width != image.height)
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return;
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// Skip sub-rectangle tests for cube map textures for the moment.
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program = tiu.setupTexturedQuadWithCubeMap(gl, internalFormat);
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for (var i in cases) {
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if (!cases[i].sourceSubRectangle) {
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runOneIteration(image, cases[i].sub, cases[i].flipY,
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cases[i].topColor, cases[i].bottomColor,
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undefined,
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gl.TEXTURE_CUBE_MAP, program);
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}
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}
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}
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function runTest(image)
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{
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runTestOnImage(image);
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imgCanvas = document.createElement("canvas");
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imgCanvas.width = 2;
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imgCanvas.height = 2;
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var imgCtx = imgCanvas.getContext("2d");
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var imgData = imgCtx.createImageData(2, 2);
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imgData.data[0] = redColor[0];
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imgData.data[1] = redColor[1];
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imgData.data[2] = redColor[2];
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imgData.data[3] = 255;
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imgData.data[4] = redColor[0];
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imgData.data[5] = redColor[1];
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imgData.data[6] = redColor[2];
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imgData.data[7] = 255;
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imgData.data[8] = greenColor[0];
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imgData.data[9] = greenColor[1];
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imgData.data[10] = greenColor[2];
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imgData.data[11] = 255;
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imgData.data[12] = greenColor[0];
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imgData.data[13] = greenColor[1];
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imgData.data[14] = greenColor[2];
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imgData.data[15] = 255;
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imgCtx.putImageData(imgData, 0, 0);
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// apparently Image is different than <img>.
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var newImage = new Image();
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newImage.onload = function() {
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runTest2(newImage);
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};
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newImage.onerror = function() {
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testFailed("Creating image from canvas failed. Image src: " + this.src);
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finishTest();
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};
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newImage.src = imgCanvas.toDataURL();
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}
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function runTest2(image) {
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runTestOnImage(image);
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wtu.makeImageFromCanvas(imgCanvas, function() {
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runTest3(this);
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});
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}
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function runTest3(image) {
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runTestOnImage(image);
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wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
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finishTest();
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}
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return init;
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}
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