1/* GStreamer 2 * Copyright (C) 2020 Matthew Waters <matthew@centricular.com> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 17 * Boston, MA 02111-1307, USA. 18 */ 19 20#version 450 core 21 22#include "color_convert_generic.glsl" 23#include "swizzle.glsl" 24 25layout(location = 0) in vec2 inTexCoord; 26 27layout(set = 0, binding = 0) uniform reorder { 28 ivec4 in_reorder_idx; 29 ivec4 out_reorder_idx; 30 ivec2 texSize; 31 ColorMatrices matrices; 32}; 33layout(set = 0, binding = 1) uniform sampler2D inTexture0; 34 35layout(location = 0) out vec4 outColor0; 36 37void main() 38{ 39 float inorder = mod (inTexCoord.x * texSize.x, 2.0); 40 float fx = inTexCoord.x; 41 float dx = -1.0 / texSize.x; 42 if (inorder > 1.0) 43 dx = -dx; 44 vec4 texel1 = swizzle (texture(inTexture0, inTexCoord), in_reorder_idx); 45 vec4 texel2 = swizzle (texture(inTexture0, inTexCoord + vec2(dx, 0.0)), in_reorder_idx); 46 vec3 yuv1 = color_convert_texel (texel1.rgb, matrices); 47 vec3 yuv2 = color_convert_texel (texel2.rgb, matrices); 48 vec3 yuv; 49 yuv.x = yuv1.x; 50 yuv.yz = (yuv1.yz + yuv2.yz) * 0.5; 51 52 if (inorder < 1.0) 53 outColor0 = vec4(yuv[out_reorder_idx[0]], yuv[out_reorder_idx[1]], 0.0, 1.0); 54 else 55 outColor0 = vec4(yuv[out_reorder_idx[2]], yuv[out_reorder_idx[3]], 0.0, 1.0); 56} 57