<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<!--

/*
** 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.
*/

-->
<link rel="stylesheet" type="text/css" href="../unit.css" />
<script type="application/javascript" src="../unit.js"></script>
<script type="application/javascript" src="../util.js"></script>
<script type="application/javascript">

Tests.startUnit = function () {
    var canvas = document.getElementById('gl');
    var gl = wrapGLContext(getGLContext(canvas));
    return [gl];
}

Tests.setup = function(gl) {
    var tex = gl.createTexture();
    gl.bindTexture(gl.TEXTURE_2D, tex);
    return [gl]
}

Tests.teardown = function(gl,tex) {
    gl.bindTexture(gl.TEXTURE_2D, null);
    gl.deleteTexture(tex);
}

Tests.testTexImage2D = function(gl) {
    gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 0,0, 16,16, 0);
    assertGLError(gl, gl.INVALID_VALUE, "width > dst tex width", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,0, 17,1);
    });
    assertGLError(gl, gl.INVALID_VALUE, "height > dst tex height", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,0, 1,17);
    });
    // The spec says the source image dimensions can be out of range.
    assertOk("x > dst tex width", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 16,0, 1,1);
    });
    assertOk("y > dst tex width", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,16, 1,1);
    });
    assertOk("x < 0", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, -1,0, 1,1);
    });
    assertOk("y < 0", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,-1, 1,1);
    });
    assertGLError(gl, gl.INVALID_VALUE, "width < 0", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,0, -1,1);
    });
    assertGLError(gl, gl.INVALID_VALUE, "height < 0", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,0, 1,-1);
    });
    assertGLError(gl, gl.INVALID_VALUE, "xoffset < 0", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, -1,0, 0,0, 16,16);
    });
    assertGLError(gl, gl.INVALID_VALUE, "yoffset < 0", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,-1, 0,0, 16,16);
    });
    assertGLError(gl, gl.INVALID_VALUE, "dimension out of range", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 4,0, 0,0, 16,16);
    });
    assertGLError(gl, gl.INVALID_VALUE, "dimension out of range", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,4, 0,0, 16,16);
    });
    assertOk("x < 0 full width", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, -1,0, 16,16);
    });
    assertOk("y < 0 full height", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,-1, 16,16);
    });
    assertOk(function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,0, 16,16);
    });
    assertGLError(gl, gl.INVALID_ENUM, "bad target", function(){
        gl.copyTexSubImage2D(gl.FLOAT, 0, 0,0, 0,0, 16,16);
    });
    assertGLError(gl, gl.INVALID_VALUE, "", function(){
        gl.copyTexSubImage2D(gl.TEXTURE_2D, -1, 0,0, 0,0, 16,16);
    });
}


Tests.endUnit = function(gl) {
}

</script>
<style>canvas{ position:absolute; }</style>
</head><body>
<canvas id="gl" width="16" height="16"></canvas>
</body></html>