/*
* Copyright (c) 2016, The Linux Foundation. All rights reserved.
* Not a Contribution.
*
* Copyright 2015 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.
*/
const char* fullscreen_vertex_shader = " "
"#version 300 es \n"
"precision highp float; \n"
"layout(location = 0) in vec2 iUV; \n"
"out vec2 uv; \n"
"void main() \n"
"{ \n"
" vec2 positions[3]; \n"
" positions[0] = vec2(-1.0f, 3.0f); \n"
" positions[1] = vec2(-1.0f, -1.0f); \n"
" positions[2] = vec2(3.0f, -1.0f); \n"
" vec2 uvs[3]; \n"
" uvs[0] = vec2(0.0f, -1.0f); \n"
" uvs[1] = vec2(0.0f, 1.0f); \n"
" uvs[2] = vec2(2.0f, 1.0f); \n"
" gl_Position = vec4(positions[gl_VertexID], -1.0f, 1.0f); \n"
" uv = uvs[gl_VertexID]; \n"
"} \n";