/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef _VERTEX_H_
#define _VERTEX_H_

static const char attach_shader_successful_complile_vertex[] =
    "#ifdef GL_ES \n"
    "precision mediump float;\n"
    "#endif\n"
    "uniform float    mortarThickness;\n"
    "uniform vec3    brickColor;\n"
    "uniform vec3    mortarColor;\n"
    " \n"
    "uniform float    brickMortarWidth;\n"
    "uniform float    brickMortarHeight;\n"
    "uniform float    mwf; \n"
    "uniform float    mhf; \n"
    ""
    "varying vec3  Position; \n"
    "varying float lightIntensity; \n"
    " \n"
    "void main (void) \n"
    "{\n"
    "    vec3    ct; \n"
    "    float    ss, tt, w, h; \n"
    " \n"
    "    vec3 pos = Position; \n"
    ""
    "    ss = pos.x / brickMortarWidth; \n"
    "    tt = pos.z / brickMortarHeight; \n"
    ""
    "    if (fract (tt * 0.5) > 0.5) \n"
    "        ss += 0.5; \n"
    ""
    "    ss = fract (ss); \n"
    "    tt = fract (tt); \n"

    "    w = step (mwf, ss) - step (1.0 - mwf, ss); \n"
    "    h = step (mhf, tt) - step (1.0 - mhf, tt); \n"
    ""
    "    ct = clamp(mix (mortarColor, brickColor, w * h) * lightIntensity, 0.0, 1.0); \n"
    ""
    "    gl_FragColor = vec4 (ct, 1.0); \n"
    "} \n";

static const char color_one_vertex_shader_one[] =
        "attribute vec4 vPosition;    \n"
        "attribute vec4 vColor;       \n"
        "varying vec4 varyColor;      \n"
        "void main()                  \n"
        "{                            \n"
        "   gl_Position = vPosition;  \n"
        "   varyColor = vColor;       \n"
        "}                            \n";

static const char color_one_vertex_shader[] =
        "attribute vec4 vPosition;    \n"
        "void main()                  \n"
        "{                            \n"
        "   gl_Position = vPosition;  \n"
        "}                            \n";

#endif