/* * FFv1 codec * * Copyright (c) 2024 Lynne <dev@lynne.ee> * * 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 */ void encode_slice_rgb(inout SliceContext sc, const uint slice_idx) { int bits = 9; if (bits != 8 || sc.slice_coding_mode != 0) bits = bits_per_raw_sample + int(sc.slice_coding_mode != 1); int run_index = 0; #ifndef GOLOMB if (sc.slice_coding_mode == 1) { if (transparency == 1) { for (int y = 0; y < sc.slice_dim.y; y++) { encode_line_pcm(sc, y, 0, 1, bits); encode_line_pcm(sc, y, 0, 2, bits); encode_line_pcm(sc, y, 0, 0, bits); encode_line_pcm(sc, y, 0, 3, bits); } } else { for (int y = 0; y < sc.slice_dim.y; y++) { encode_line_pcm(sc, y, 0, 1, bits); encode_line_pcm(sc, y, 0, 2, bits); encode_line_pcm(sc, y, 0, 0, bits); } } } else #endif { uint64_t slice_state_off = uint64_t(slice_state) + slice_idx*plane_state_size*codec_planes; if (transparency == 1) { for (int y = 0; y < sc.slice_dim.y; y++) { encode_line(sc, slice_state_off + plane_state_size*0, y, 0, 1, bits, run_index); encode_line(sc, slice_state_off + plane_state_size*1, y, 0, 2, bits, run_index); encode_line(sc, slice_state_off + plane_state_size*1, y, 0, 0, bits, run_index); encode_line(sc, slice_state_off + plane_state_size*2, y, 0, 3, bits, run_index); } } else { for (int y = 0; y < sc.slice_dim.y; y++) { encode_line(sc, slice_state_off + plane_state_size*0, y, 0, 1, bits, run_index); encode_line(sc, slice_state_off + plane_state_size*1, y, 0, 2, bits, run_index); encode_line(sc, slice_state_off + plane_state_size*1, y, 0, 0, bits, run_index); } } } finalize_slice(sc, slice_idx); } void main(void) { const uint slice_idx = gl_WorkGroupID.y*gl_NumWorkGroups.x + gl_WorkGroupID.x; encode_slice_rgb(slice_ctx[slice_idx], slice_idx); }