| /* |
| * 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* forward_tonemap_shader = "" |
| "#extension GL_OES_EGL_image_external_essl3 : require \n" |
| "precision highp float; \n" |
| "precision highp sampler2D; \n" |
| "layout(binding = 0) uniform samplerExternalOES externalTexture; \n" |
| "layout(binding = 1) uniform sampler3D tonemapper; \n" |
| "layout(binding = 2) uniform sampler2D xform; \n" |
| "in vec2 uv; \n" |
| "out vec4 fs_color; \n" |
| "void main() \n" |
| "{ \n" |
| "vec4 rgb = texture(externalTexture, uv); \n" |
| "#if defined(USE_NONUNIFORM_SAMPLING) \n" |
| "float r = texture(xform, vec2(r, 0.0f)).r; \n" |
| "float g = texture(xform, vec2(g, 0.0f)).g; \n" |
| "float b = texture(xform, vec2(b, 0.0f)).b; \n" |
| "#else \n" |
| "float r = rgb.r; \n" |
| "float g = rgb.g; \n" |
| "float b = rgb.b; \n" |
| "#endif \n" |
| "fs_color.rgb = texture(tonemapper, vec3(r, g, b)).rgb; \n" |
| "} \n"; |