/* GStreamer * Copyright (C) 2020 Matthew Waters <matthew@centricular.com> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #version 450 core #include "view_defines.h" #include "swizzle.glsl" layout(location = 0) in vec2 inTexCoord; layout(set = 0, binding = 0) uniform ViewConvert { ivec4 in_reorder_idx; ivec4 out_reorder_idx; vec4 tex_offset; vec4 tex_scale; ivec2 tex_size; int output_type; mat3 downmix[2]; }; layout(set = 0, binding = 1) uniform sampler2D l_tex; layout(set = 0, binding = 2) uniform sampler2D r_tex; layout(location = 0) out vec4 outColor0; void main() { vec2 l_coord = inTexCoord * tex_scale.xy + tex_offset.xy; vec2 r_coord = inTexCoord * tex_scale.zw + tex_offset.zw; vec4 l = swizzle(texture(l_tex, l_coord), in_reorder_idx); vec4 r = swizzle(texture(r_tex, r_coord), in_reorder_idx); if (output_type == VIEW_MONO_DOWNMIX) { vec3 lcol = l.rgb * l.a + vec3(1.0-l.a); vec3 rcol = r.rgb * r.a + vec3(1.0-r.a); if (l.a + r.a > 0.0) { lcol = clamp (downmix[0] * lcol, 0.0, 1.0); rcol = clamp (downmix[1] * rcol, 0.0, 1.0); outColor0 = vec4 (lcol + rcol, 1.0); } else { outColor0 = vec4 (0.0); } } else if (output_type == VIEW_MONO_LEFT) { outColor0 = swizzle(l, out_reorder_idx); } else if (output_type == VIEW_MONO_RIGHT) { outColor0 = swizzle(r, out_reorder_idx); } else if (output_type == VIEW_SIDE_BY_SIDE) { if (inTexCoord.x < 0.5) { outColor0 = swizzle(l, out_reorder_idx); } else { outColor0 = swizzle(r, out_reorder_idx); } } else if (output_type == VIEW_TOP_BOTTOM) { if (inTexCoord.y < 0.5) { outColor0 = swizzle(l, out_reorder_idx); } else { outColor0 = swizzle(r, out_reorder_idx); } } else if (output_type == VIEW_COLUMN_INTERLEAVED) { if (int(mod(l_coord.x * tex_size.x, 2.0)) == 0) { outColor0 = swizzle(l, out_reorder_idx); } else { outColor0 = swizzle(r, out_reorder_idx); } } else if (output_type == VIEW_ROW_INTERLEAVED) { if (int(mod(l_coord.y * tex_size.y, 2.0)) == 0) { outColor0 = swizzle(l, out_reorder_idx); } else { outColor0 = swizzle(r, out_reorder_idx); } } else if (output_type == VIEW_CHECKERBOARD) { if (int(mod(l_coord.x * tex_size.x, 2.0)) == int(mod(l_coord.y * tex_size.y, 2.0))) { outColor0 = swizzle(l, out_reorder_idx); } else { outColor0 = swizzle(r, out_reorder_idx); } } else { outColor0 = vec4(1.0, 0.0, 1.0, 1.0); } }