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/*
** Copyright (c) 2012 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
**
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
*/
function generateTest(internalFormat, pixelFormat, pixelType, prologue, resourcePath, defaultContextVersion) {
var wtu = WebGLTestUtils;
var tiu = TexImageUtils;
var gl = null;
var successfullyParsed = false;
var imgCanvas;
var redColor = [255, 0, 0];
var greenColor = [0, 255, 0];
function init()
{
description('Verify texImage2D and texSubImage2D code paths taking image elements (' + internalFormat + '/' + pixelFormat + '/' + pixelType + ')');
// Set the default context version while still allowing the webglVersion URL query string to override it.
wtu.setDefault3DContextVersion(defaultContextVersion);
gl = wtu.create3DContext("example");
if (!prologue(gl)) {
finishTest();
return;
}
switch (gl[pixelFormat]) {
case gl.RED:
case gl.RED_INTEGER:
greenColor = [0, 0, 0];
break;
default:
break;
}
gl.clearColor(0,0,0,1);
gl.clearDepth(1);
wtu.loadTexture(gl, resourcePath + "red-green.png", runTest);
}
function runOneIteration(image, useTexSubImage2D, flipY, topColor, bottomColor,
sourceSubRectangle, bindingTarget, program)
{
sourceSubRectangleString = '';
if (sourceSubRectangle) {
sourceSubRectangleString = ' sourceSubRectangle=' + sourceSubRectangle;
}
debug('Testing ' + (useTexSubImage2D ? 'texSubImage2D' : 'texImage2D') +
' with ' + image.width + 'x' + image.height + ' flipY=' + flipY + ' bindingTarget=' +
(bindingTarget == gl.TEXTURE_2D ? 'TEXTURE_2D' : 'TEXTURE_CUBE_MAP') +
sourceSubRectangleString);
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
// Disable any writes to the alpha channel
gl.colorMask(1, 1, 1, 0);
var texture = gl.createTexture();
// Bind the texture to texture unit 0
gl.bindTexture(bindingTarget, texture);
// Set up texture parameters
gl.texParameteri(bindingTarget, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(bindingTarget, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
// Set up pixel store parameters
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY);
gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
wtu.failIfGLError(gl, 'gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE);');
var targets = [gl.TEXTURE_2D];
if (bindingTarget == gl.TEXTURE_CUBE_MAP) {
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];
}
// Handle the source sub-rectangle if specified (WebGL 2.0 only)
if (sourceSubRectangle) {
gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, sourceSubRectangle[0]);
gl.pixelStorei(gl.UNPACK_SKIP_ROWS, sourceSubRectangle[1]);
}
// Upload the image into the texture
for (var tt = 0; tt < targets.length; ++tt) {
if (sourceSubRectangle) {
if (useTexSubImage2D) {
// Initialize the texture to black first
gl.texImage2D(targets[tt], 0, gl[internalFormat],
sourceSubRectangle[2], sourceSubRectangle[3], 0,
gl[pixelFormat], gl[pixelType], null);
gl.texSubImage2D(targets[tt], 0, 0, 0,
sourceSubRectangle[2], sourceSubRectangle[3],
gl[pixelFormat], gl[pixelType], image);
} else {
gl.texImage2D(targets[tt], 0, gl[internalFormat],
sourceSubRectangle[2], sourceSubRectangle[3], 0,
gl[pixelFormat], gl[pixelType], image);
}
} else {
if (useTexSubImage2D) {
// Initialize the texture to black first
gl.texImage2D(targets[tt], 0, gl[internalFormat], image.width, image.height, 0,
gl[pixelFormat], gl[pixelType], null);
gl.texSubImage2D(targets[tt], 0, 0, 0, gl[pixelFormat], gl[pixelType], image);
} else {
gl.texImage2D(targets[tt], 0, gl[internalFormat], gl[pixelFormat], gl[pixelType], image);
}
}
}
if (sourceSubRectangle) {
gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, 0);
gl.pixelStorei(gl.UNPACK_SKIP_ROWS, 0);
}
var loc;
if (bindingTarget == gl.TEXTURE_CUBE_MAP) {
loc = gl.getUniformLocation(program, "face");
}
for (var tt = 0; tt < targets.length; ++tt) {
if (bindingTarget == gl.TEXTURE_CUBE_MAP) {
gl.uniform1i(loc, targets[tt]);
}
// Draw the triangles
wtu.clearAndDrawUnitQuad(gl, [0, 0, 0, 255]);
// Check a few pixels near the top and bottom and make sure they have
// the right color.
debug("Checking lower left corner");
wtu.checkCanvasRect(gl, 4, 4, 2, 2, bottomColor,
"shouldBe " + bottomColor);
debug("Checking upper left corner");
wtu.checkCanvasRect(gl, 4, gl.canvas.height - 8, 2, 2, topColor,
"shouldBe " + topColor);
}
}
function runTestOnImage(image) {
var cases = [
{ sub: false, flipY: true, topColor: redColor, bottomColor: greenColor },
{ sub: false, flipY: false, topColor: greenColor, bottomColor: redColor },
{ sub: true, flipY: true, topColor: redColor, bottomColor: greenColor },
{ sub: true, flipY: false, topColor: greenColor, bottomColor: redColor },
];
if (wtu.getDefault3DContextVersion() > 1) {
cases = cases.concat([
{ sub: false, flipY: false, topColor: redColor, bottomColor: redColor,
sourceSubRectangle: [0, 0, 1, 1] },
{ sub: false, flipY: true, topColor: greenColor, bottomColor: greenColor,
sourceSubRectangle: [0, 0, 1, 1] },
{ sub: false, flipY: false, topColor: greenColor, bottomColor: greenColor,
sourceSubRectangle: [0, 1, 1, 1] },
{ sub: false, flipY: true, topColor: redColor, bottomColor: redColor,
sourceSubRectangle: [0, 1, 1, 1] },
{ sub: true, flipY: false, topColor: redColor, bottomColor: redColor,
sourceSubRectangle: [0, 0, 1, 1] },
{ sub: true, flipY: true, topColor: greenColor, bottomColor: greenColor,
sourceSubRectangle: [0, 0, 1, 1] },
{ sub: true, flipY: false, topColor: greenColor, bottomColor: greenColor,
sourceSubRectangle: [0, 1, 1, 1] },
{ sub: true, flipY: true, topColor: redColor, bottomColor: redColor,
sourceSubRectangle: [0, 1, 1, 1] },
]);
}
var program = tiu.setupTexturedQuad(gl, internalFormat);
for (var i in cases) {
runOneIteration(image, cases[i].sub, cases[i].flipY,
cases[i].topColor, cases[i].bottomColor,
cases[i].sourceSubRectangle,
gl.TEXTURE_2D, program);
}
// cube map texture must be square.
if (image.width != image.height)
return;
// Skip sub-rectangle tests for cube map textures for the moment.
program = tiu.setupTexturedQuadWithCubeMap(gl, internalFormat);
for (var i in cases) {
if (!cases[i].sourceSubRectangle) {
runOneIteration(image, cases[i].sub, cases[i].flipY,
cases[i].topColor, cases[i].bottomColor,
undefined,
gl.TEXTURE_CUBE_MAP, program);
}
}
}
function runTest(image)
{
runTestOnImage(image);
imgCanvas = document.createElement("canvas");
imgCanvas.width = 2;
imgCanvas.height = 2;
var imgCtx = imgCanvas.getContext("2d");
var imgData = imgCtx.createImageData(2, 2);
imgData.data[0] = redColor[0];
imgData.data[1] = redColor[1];
imgData.data[2] = redColor[2];
imgData.data[3] = 255;
imgData.data[4] = redColor[0];
imgData.data[5] = redColor[1];
imgData.data[6] = redColor[2];
imgData.data[7] = 255;
imgData.data[8] = greenColor[0];
imgData.data[9] = greenColor[1];
imgData.data[10] = greenColor[2];
imgData.data[11] = 255;
imgData.data[12] = greenColor[0];
imgData.data[13] = greenColor[1];
imgData.data[14] = greenColor[2];
imgData.data[15] = 255;
imgCtx.putImageData(imgData, 0, 0);
// apparently Image is different than <img>.
var newImage = new Image();
newImage.onload = function() {
runTest2(newImage);
};
newImage.onerror = function() {
testFailed("Creating image from canvas failed. Image src: " + this.src);
finishTest();
};
newImage.src = imgCanvas.toDataURL();
}
function runTest2(image) {
runTestOnImage(image);
wtu.makeImageFromCanvas(imgCanvas, function() {
runTest3(this);
});
}
function runTest3(image) {
runTestOnImage(image);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
finishTest();
}
return init;
}
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