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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>WebGL GLSL Conformance Tests</title>
<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
<script src="../../../resources/js-test-pre.js"></script>
<script src="../../resources/webgl-test-utils.js"></script>
<script src="../../resources/glsl-conformance-test.js"></script>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<script id="sharedVertexShader" type="text/something-not-javascript">
// shared vertex shader should succeed.
uniform mat4 viewProjection;
uniform vec3 worldPosition;
uniform vec3 nextPosition;
uniform float fishLength;
uniform float fishWaveLength;
uniform float fishBendAmount;
attribute vec4 position;
attribute vec2 texCoord;
varying vec4 v_position;
varying vec2 v_texCoord;
varying vec3 v_surfaceToLight;
void main() {
  vec3 vz = normalize(worldPosition - nextPosition);
  vec3 vx = normalize(cross(vec3(0,1,0), vz));
  vec3 vy = cross(vz, vx);
  mat4 orientMat = mat4(
    vec4(vx, 0),
    vec4(vy, 0),
    vec4(vz, 0),
    vec4(worldPosition, 1));
  mat4 world = orientMat;
  mat4 worldViewProjection = viewProjection * world;
  mat4 worldInverseTranspose = world;

  v_texCoord = texCoord;
  // NOTE:If you change this you need to change the laser code to match!
  float mult = position.z > 0.0 ?
      (position.z / fishLength) :
      (-position.z / fishLength * 2.0);
  float s = sin(mult * fishWaveLength);
  float a = sign(s);
  float offset = pow(mult, 2.0) * s * fishBendAmount;
  v_position = (
      worldViewProjection *
      (position +
       vec4(offset, 0, 0, 0)));
  v_surfaceToLight = (world * position).xyz;
  gl_Position = v_position;
}
</script>
<script id="fragmentShaderA" type="text/something-not-javascript">
// shared fragment shader should succeed.
precision mediump float;
uniform vec4 lightColor;
varying vec4 v_position;
varying vec2 v_texCoord;
varying vec3 v_surfaceToLight;

uniform vec4 ambient;
uniform sampler2D diffuse;
uniform vec4 specular;
uniform float shininess;
uniform float specularFactor;
// #fogUniforms

vec4 lit(float l ,float h, float m) {
  return vec4(1.0,
              max(l, 0.0),
              (l > 0.0) ? pow(max(0.0, h), m) : 0.0,
              1.0);
}
void main() {
  vec4 diffuseColor = texture2D(diffuse, v_texCoord);
  vec4 normalSpec = vec4(0,0,0,0);  // #noNormalMap
  vec3 surfaceToLight = normalize(v_surfaceToLight);
  vec3 halfVector = normalize(surfaceToLight);
  vec4 litR = lit(1.0, 1.0, shininess);
  vec4 outColor = vec4(
    (lightColor * (diffuseColor * litR.y + diffuseColor * ambient +
                  specular * litR.z * specularFactor * normalSpec.a)).rgb,
      diffuseColor.a);
  // #fogCode
  gl_FragColor = outColor;
}
</script>
<script id="fragmentShaderB" type="text/something-not-javascript">
// shared fragment shader should succeed.
precision mediump float;
varying vec4 v_position;
varying vec2 v_texCoord;
varying vec3 v_surfaceToLight;

// #fogUniforms

vec4 lit(float l ,float h, float m) {
  return vec4(1.0,
              max(l, 0.0),
              (l > 0.0) ? pow(max(0.0, h), m) : 0.0,
              1.0);
}
void main() {
  vec4 normalSpec = vec4(0,0,0,0);  // #noNormalMap
  vec4 reflection = vec4(0,0,0,0);  // #noReflection
  vec3 surfaceToLight = normalize(v_surfaceToLight);
  vec4 skyColor = vec4(0.5,0.5,1,1);  // #noReflection

  vec3 halfVector = normalize(surfaceToLight);
  vec4 litR = lit(1.0, 1.0, 10.0);
  vec4 outColor = vec4(mix(
      skyColor,
      vec4(1,2,3,4) * (litR.y + litR.z * normalSpec.a),
      1.0 - reflection.r).rgb,
      1.0);
  // #fogCode
  gl_FragColor = outColor;
}
</script>
<script>
"use strict";
GLSLConformanceTester.runTests([
  { vShaderSource: document.getElementById("sharedVertexShader").text,
    vShaderSuccess: true,
    fShaderSource: document.getElementById("fragmentShaderA").text,
    fShaderSuccess: true,
    linkSuccess: true,
    passMsg: 'shared fragment shader should succeed',
  },
  { vShaderSource: document.getElementById("sharedVertexShader").text,
    vShaderSuccess: true,
    fShaderSource: document.getElementById("fragmentShaderB").text,
    fShaderSuccess: true,
    linkSuccess: true,
    passMsg: 'shared fragment shader should succeed',
  }
]);
var successfullyParsed = true;
</script>
</body>
</html>

