| /* |
| * Copyright (c) 2018 Dylan Fernando |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| |
| __kernel void avgblur_horiz(__write_only image2d_t dst, |
| __read_only image2d_t src, |
| int rad) |
| { |
| const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE | |
| CLK_FILTER_NEAREST); |
| int2 loc = (int2)(get_global_id(0), get_global_id(1)); |
| int2 size = (int2)(get_global_size(0), get_global_size(1)); |
| |
| int count = 0; |
| float4 acc = (float4)(0,0,0,0); |
| |
| for (int xx = max(0, loc.x - rad); xx < min(loc.x + rad + 1, size.x); xx++) { |
| count++; |
| acc += read_imagef(src, sampler, (int2)(xx, loc.y)); |
| } |
| |
| write_imagef(dst, loc, acc / count); |
| } |
| |
| __kernel void avgblur_vert(__write_only image2d_t dst, |
| __read_only image2d_t src, |
| int radv) |
| { |
| const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE | |
| CLK_FILTER_NEAREST); |
| int2 loc = (int2)(get_global_id(0), get_global_id(1)); |
| int2 size = (int2)(get_global_size(0), get_global_size(1)); |
| |
| int count = 0; |
| float4 acc = (float4)(0,0,0,0); |
| |
| for (int yy = max(0, loc.y - radv); yy < min(loc.y + radv + 1, size.y); yy++) { |
| count++; |
| acc += read_imagef(src, sampler, (int2)(loc.x, yy)); |
| } |
| |
| write_imagef(dst, loc, acc / count); |
| } |