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+<!--
+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.
+-->
+
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>WebGL CopyTexImage Tests</title>
+<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<script src="../../../js/js-test-pre.js"></script>
+<script src="../../../js/webgl-test-utils.js"></script>
+</head>
+<body>
+<canvas id="example" width="2" height="2"></canvas>
+<div id="description"></div>
+<div id="console"></div>
+<script>
+"use strict";
+
+var wtu = WebGLTestUtils;
+description("This test verifies the functionality of copyTexImage.");
+
+var gl = wtu.create3DContext("example", undefined, 2);
+
+function copytexsubimage3d_invalid_operation_feedbackloops() {
+ debug("");
+ debug("Testing copytexsubimage3d_invalid_operation_feedbackloops");
+ var texture = gl.createTexture();
+ gl.bindTexture(gl.TEXTURE_3D, texture);
+ var uint8 = new Uint8Array(32);
+ var layer = 0;
+ var width = 2;
+ var height = 2;
+ var depth = 2;
+ gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA, width, height, depth, 0, gl.RGBA, gl.UNSIGNED_BYTE, uint8);
+
+ var fbo = gl.createFramebuffer();
+ gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
+ gl.framebufferTextureLayer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, texture, 0, layer);
+ if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE) {
+ gl.copyTexSubImage3D(gl.TEXTURE_3D, 0, 0, 0, layer, 0, 0, width, height);
+ wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "gl.INVALID_OPERATION is generated");
+ } else {
+ testFailed("framebuffer not complete");
+ }
+
+ gl.bindFramebuffer(gl.FRAMEBUFFER, null);
+ gl.deleteFramebuffer(fbo);
+ gl.deleteTexture(texture);
+};
+
+function copytexsubimage3d_valid_operation_diff_level() {
+ debug("");
+ debug("Testing copytexsubimage3d_valid_operation_diff_level");
+ var texture = gl.createTexture();
+ gl.bindTexture(gl.TEXTURE_3D, texture);
+ var uint8 = new Uint8Array(32);
+ var level1 = 0;
+ var level2 = 1;
+ var width = 2;
+ var height = 2;
+ var depth = 2;
+ gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA, width, height, depth, 0, gl.RGBA, gl.UNSIGNED_BYTE, uint8);
+ gl.generateMipmap(gl.TEXTURE_3D);
+
+ var fbo = gl.createFramebuffer();
+ gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
+ gl.framebufferTextureLayer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, texture, level1, 0);
+ if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE) {
+ gl.copyTexSubImage3D(gl.TEXTURE_3D, level2, 0, 0, 0, 0, 0, width/2, height/2);
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texImage3D should succeed.");
+ } else {
+ testFailed("framebuffer not complete");
+ }
+
+ gl.bindFramebuffer(gl.FRAMEBUFFER, null);
+ gl.deleteFramebuffer(fbo);
+ gl.deleteTexture(texture);
+};
+
+function copytexsubimage3d_valid_operation_diff_layer() {
+ debug("");
+ debug("Testing copytexsubimage3d_valid_operation_diff_layer");
+ var texture = gl.createTexture();
+ gl.bindTexture(gl.TEXTURE_3D, texture);
+ var uint8 = new Uint8Array(32);
+ var layer1 = 0;
+ var layer2 = 1;
+ var width = 2;
+ var height = 2;
+ var depth = 2;
+ gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA, width, height, depth, 0, gl.RGBA, gl.UNSIGNED_BYTE, uint8);
+
+ var fbo = gl.createFramebuffer();
+ gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
+ gl.framebufferTextureLayer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, texture, 0, layer1);
+ if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE) {
+ gl.copyTexSubImage3D(gl.TEXTURE_3D, 0, 0, 0, layer2, 0, 0, width, height);
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texImage3D should succeed.");
+ } else {
+ testFailed("framebuffer not complete");
+ }
+
+ gl.bindFramebuffer(gl.FRAMEBUFFER, null);
+ gl.deleteFramebuffer(fbo);
+ gl.deleteTexture(texture);
+}
+
+function copytexsubimage3d_texture_wrongly_initialized() {
+ debug("");
+ debug("Testing copytexsubimage3d_texture_wrongly_initialized");
+ var texture = [];
+ texture[0] = gl.createTexture();
+ texture[1] = gl.createTexture();
+ var layer = 0;
+ var width = 2;
+ var height = 2;
+ var depth = 2;
+ gl.bindTexture(gl.TEXTURE_2D, texture[0]);
+ var uint = new Uint8Array([0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10]);
+ gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, uint);
+
+ var fbo = gl.createFramebuffer();
+ gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
+ gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture[0], 0);
+ if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE) {
+ gl.bindTexture(gl.TEXTURE_3D, texture[1]);
+ gl.texStorage3D(gl.TEXTURE_3D, 1, gl.RGBA8, width, height, depth);
+ gl.copyTexSubImage3D(gl.TEXTURE_3D, 0, 0, 0, layer, 0, 0, width, height);
+ gl.framebufferTextureLayer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, texture[1], 0, layer);
+ var bytes = new Uint8Array(width * height * 4);
+ gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, bytes);
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, "readpixel should succeed.");
+ for (var x = 0; x < width * height * 4; x++) {
+ if (bytes[x] != uint[x]) {
+ testFailed("byte comparison failure, byte at "+ x + " was " + bytes[x] +
+ ", should be " + uint[x]);
+ break;
+ }
+ }
+ } else {
+ testFailed("framebuffer not complete");
+ }
+
+ gl.bindTexture(gl.TEXTURE_2D, null);
+ gl.bindTexture(gl.TEXTURE_3D, null);
+ gl.bindFramebuffer(gl.FRAMEBUFFER, null);
+ gl.deleteFramebuffer(fbo);
+ gl.deleteTexture(texture[0]);
+ gl.deleteTexture(texture[1]);
+};
+
+function copytexsubimage3d_out_of_bounds_test_helper(xx, yy, copyWidth, copyHeight) {
+ var texture = [];
+ texture[0] = gl.createTexture();
+ texture[1] = gl.createTexture();
+ var layer = 0;
+ var width = 2;
+ var height = 2;
+ var depth = 2;
+ var width2 = 4;
+ var height2 = 4;
+ var xoffset = 0;
+ var yoffset = 0;
+ var uint = new Uint8Array(width * height * 4);
+ for (var i = 0; i < uint.length; i++) {
+ uint[i] = 0x01;
+ }
+ var uint2 = new Uint8Array(width2 * height2 * depth * 4);
+ for (var i = 0; i < uint2.length; i++) {
+ uint2[i] = 0xFF;
+ }
+
+ var fbo = gl.createFramebuffer();
+ gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
+
+ gl.bindTexture(gl.TEXTURE_2D, texture[0]);
+ gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, uint);
+ gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture[0], 0);
+ if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE) {
+ gl.bindTexture(gl.TEXTURE_3D, texture[1]);
+ gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA, width2, height2, depth, 0, gl.RGBA, gl.UNSIGNED_BYTE, uint2);
+ gl.copyTexSubImage3D(gl.TEXTURE_3D, 0, xoffset, yoffset, layer, xx, yy, copyWidth, copyHeight);
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, "using copyTexSubImage3D: x = " + xx + ", y = " + yy + " width = " + copyWidth + ", height = " + copyHeight);
+
+ gl.framebufferTextureLayer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, texture[1], 0, layer);
+ var bytes = new Uint8Array(width2 * height2 * 4);
+ gl.readPixels(0, 0, width2, height2, gl.RGBA, gl.UNSIGNED_BYTE, bytes);
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, "readpixel should succeed.");
+
+ var sourceX = new Object();
+ var sourceY = new Object();
+ Clip(xx, copyWidth, width, sourceX);
+ Clip(yy, copyHeight, height, sourceY);
+ var destX = sourceX.start - xx + xoffset;
+ var rangeX = sourceX.range;
+ var destY = sourceY.start - yy + yoffset;
+ var rangeY = sourceY.range;
+ for (var y = 0; y < height2; y++) {
+ for (var x = 0; x < width2 * 4; x++) {
+ var current = y * height2 * 4 + x;
+ // pixels copied from read framebuffer should be 0x01
+ if (x >= destX * 4 && x < (destX + rangeX) * 4 && y >= destY && y < destY + rangeY) {
+ if (bytes[current] != 0x01) {
+ testFailed("byte comparison failure, byte at "+ (current) + " was " +
+ bytes[current] +", should be 1");
+ break;
+ }
+ // pixels out-of-bounds should be untouched
+ } else {
+ if (bytes[current] != 0xFF) {
+ testFailed("byte comparison failure, byte at "+ (current) + " was " +
+ bytes[current] + ", should be 255");
+ break;
+ }
+ }
+ }
+ // Test failed; abort
+ if (x < width2 * 4) {
+ break;
+ }
+ }
+ } else {
+ testFailed("framebuffer not complete");
+ }
+
+ gl.bindTexture(gl.TEXTURE_2D, null);
+ gl.bindTexture(gl.TEXTURE_3D, null);
+ gl.bindFramebuffer(gl.FRAMEBUFFER, null);
+ gl.deleteFramebuffer(fbo);
+ gl.deleteTexture(texture[0]);
+ gl.deleteTexture(texture[1]);
+}
+
+function copytexsubimage3d_out_of_bounds() {
+ debug("");
+ debug("Test pixels outside of read framebuffer for CopyTexSubImage3D");
+
+ for(var i=0; i < testlist.length; i++) {
+ copytexsubimage3d_out_of_bounds_test_helper(testlist[i][0], testlist[i][1], testlist[i][2], testlist[i][3]);
+ }
+};
+
+/**
+ * This array defines some copy areas for CopyTexSubImage3D.
+ * A copy area is defined by x coordinate, y coordinate, copyWidth and copyHeight.
+ * the source read framebuffer is (0, 0, 2, 2).
+ */
+var testlist = [
+ [-1, -1, 4, 4],
+
+ [0, 0, 3, 3],
+ [-1, -1, 3, 3],
+ [-1, 0, 3, 3],
+ [0, -1, 3, 3],
+
+ [0, 0, 2, 3],
+ [0, 0, 3, 2],
+ [-1, 0, 3, 2],
+ [0, -1, 2, 3],
+
+ [-2, -2, 3, 3],
+ [-2, 1, 3, 3],
+ [1, -2, 3, 3],
+ [1, 1, 3, 3],
+
+ [2 , 2 ,3, 3]
+];
+
+
+function Clip(start, range, sourceRange, target) {
+ if (start < 0) {
+ range += start;
+ start = 0;
+ }
+ var end = start + range;
+ if(end > sourceRange) {
+ range -= end - sourceRange;
+ }
+ target.start = start;
+ target.range = range;
+}
+
+if (!gl) {
+ testFailed("WebGL context does not exist");
+} else {
+ testPassed("WebGL context exists");
+ copytexsubimage3d_invalid_operation_feedbackloops();
+ copytexsubimage3d_valid_operation_diff_level();
+ copytexsubimage3d_valid_operation_diff_layer();
+ copytexsubimage3d_texture_wrongly_initialized();
+ copytexsubimage3d_out_of_bounds();
+}
+
+var successfullyParsed = true;
+</script>
+<script src="../../../js/js-test-post.js"></script>
+
+</body>
+</html>
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-01 15:28:45 +0000