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https://gitlab.uni-freiburg.de/opensourcevdi/spice
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78c1465ed3
When using config.h, it must be the very first include in all source files since it contains #define that may change the compilation process (eg libc structure layout changes when it's used to enable large file support on 32 bit x86 archs). This commit adds it at the beginning of all .c and .cpp files
637 lines
22 KiB
C
637 lines
22 KiB
C
/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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/*
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Copyright (C) 2009 Red Hat, Inc.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifdef ONE_BYTE
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#undef ONE_BYTE
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#define FNAME(name) quic_one_##name
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#define PIXEL one_byte_t
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#endif
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#ifdef THREE_BYTE
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#undef THREE_BYTE
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#define FNAME(name) quic_three_##name
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#define PIXEL three_bytes_t
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#endif
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#ifdef FOUR_BYTE
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#undef FOUR_BYTE
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#define FNAME(name) quic_four_##name
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#define PIXEL four_bytes_t
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#endif
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#define golomb_coding golomb_coding_8bpc
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#define golomb_decoding golomb_decoding_8bpc
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#define update_model update_model_8bpc
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#define find_bucket find_bucket_8bpc
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#define family family_8bpc
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#define BPC 8
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#define BPC_MASK 0xffU
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#define _PIXEL_A ((unsigned int)curr[-1].a)
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#define _PIXEL_B ((unsigned int)prev[0].a)
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#define _PIXEL_C ((unsigned int)prev[-1].a)
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#ifdef RLE_PRED_1
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#define RLE_PRED_1_IMP \
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if (cur_row[i - 1].a == prev_row[i].a) { \
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if (run_index != i && prev_row[i - 1].a == prev_row[i].a && \
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i + 1 < end && prev_row[i].a == prev_row[i + 1].a) { \
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goto do_run; \
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} \
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}
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#else
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#define RLE_PRED_1_IMP
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#endif
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#ifdef RLE_PRED_2
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#define RLE_PRED_2_IMP \
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if (prev_row[i - 1].a == prev_row[i].a) { \
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if (run_index != i && i > 2 && cur_row[i - 1].a == cur_row[i - 2].a) { \
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goto do_run; \
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} \
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}
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#else
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#define RLE_PRED_2_IMP
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#endif
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#ifdef RLE_PRED_3
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#define RLE_PRED_3_IMP \
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if (i > 1 && cur_row[i - 1].a == cur_row[i - 2].a && i != run_index) { \
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goto do_run; \
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}
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#else
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#define RLE_PRED_3_IMP
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#endif
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/* a */
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static INLINE BYTE FNAME(decorelate_0)(const PIXEL * const curr, const unsigned int bpc_mask)
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{
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return family.xlatU2L[(unsigned)((int)curr[0].a - (int)_PIXEL_A) & bpc_mask];
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}
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static INLINE void FNAME(corelate_0)(PIXEL *curr, const BYTE corelate,
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const unsigned int bpc_mask)
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{
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curr->a = (family.xlatL2U[corelate] + _PIXEL_A) & bpc_mask;
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}
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#ifdef PRED_1
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/* (a+b)/2 */
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static INLINE BYTE FNAME(decorelate)(const PIXEL *const prev, const PIXEL * const curr,
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const unsigned int bpc_mask)
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{
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return family.xlatU2L[(unsigned)((int)curr->a - (int)((_PIXEL_A + _PIXEL_B) >> 1)) & bpc_mask];
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}
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static INLINE void FNAME(corelate)(const PIXEL *prev, PIXEL *curr, const BYTE corelate,
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const unsigned int bpc_mask)
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{
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curr->a = (family.xlatL2U[corelate] + (int)((_PIXEL_A + _PIXEL_B) >> 1)) & bpc_mask;
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}
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#endif
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#ifdef PRED_2
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/* .75a+.75b-.5c */
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static INLINE BYTE FNAME(decorelate)(const PIXEL *const prev, const PIXEL * const curr,
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const unsigned int bpc_mask)
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{
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int p = ((int)(3 * (_PIXEL_A + _PIXEL_B)) - (int)(_PIXEL_C << 1)) >> 2;
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if (p < 0) {
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p = 0;
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} else if ((unsigned)p > bpc_mask) {
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p = bpc_mask;
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}
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{
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return family.xlatU2L[(unsigned)((int)curr->a - p) & bpc_mask];
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}
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}
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static INLINE void FNAME(corelate)(const PIXEL *prev, PIXEL *curr, const BYTE corelate,
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const unsigned int bpc_mask)
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{
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const int p = ((int)(3 * (_PIXEL_A + _PIXEL_B)) - (int)(_PIXEL_C << 1)) >> 2;
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const unsigned int s = family.xlatL2U[corelate];
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if (!(p & ~bpc_mask)) {
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curr->a = (s + (unsigned)p) & bpc_mask;
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} else if (p < 0) {
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curr->a = s;
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} else {
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curr->a = (s + bpc_mask) & bpc_mask;
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}
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}
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#endif
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static void FNAME(compress_row0_seg)(Encoder *encoder, Channel *channel, int i,
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const PIXEL * const cur_row,
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const int end,
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const unsigned int waitmask,
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const unsigned int bpc,
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const unsigned int bpc_mask)
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{
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BYTE * const decorelate_drow = channel->correlate_row;
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int stopidx;
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ASSERT(encoder->usr, end - i > 0);
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if (i == 0) {
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unsigned int codeword, codewordlen;
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decorelate_drow[0] = family.xlatU2L[cur_row->a];
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golomb_coding(decorelate_drow[0], find_bucket(channel, decorelate_drow[-1])->bestcode,
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&codeword, &codewordlen);
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encode(encoder, codeword, codewordlen);
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if (channel->state.waitcnt) {
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channel->state.waitcnt--;
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} else {
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channel->state.waitcnt = (tabrand(&channel->state.tabrand_seed) & waitmask);
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update_model(&channel->state, find_bucket(channel, decorelate_drow[-1]),
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decorelate_drow[i], bpc);
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}
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stopidx = ++i + channel->state.waitcnt;
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} else {
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stopidx = i + channel->state.waitcnt;
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}
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while (stopidx < end) {
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for (; i <= stopidx; i++) {
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unsigned int codeword, codewordlen;
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decorelate_drow[i] = FNAME(decorelate_0)(&cur_row[i], bpc_mask);
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golomb_coding(decorelate_drow[i],
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find_bucket(channel, decorelate_drow[i - 1])->bestcode, &codeword,
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&codewordlen);
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encode(encoder, codeword, codewordlen);
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}
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update_model(&channel->state, find_bucket(channel, decorelate_drow[stopidx - 1]),
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decorelate_drow[stopidx], bpc);
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stopidx = i + (tabrand(&channel->state.tabrand_seed) & waitmask);
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}
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for (; i < end; i++) {
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unsigned int codeword, codewordlen;
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decorelate_drow[i] = FNAME(decorelate_0)(&cur_row[i], bpc_mask);
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golomb_coding(decorelate_drow[i], find_bucket(channel, decorelate_drow[i - 1])->bestcode,
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&codeword, &codewordlen);
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encode(encoder, codeword, codewordlen);
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}
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channel->state.waitcnt = stopidx - end;
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}
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static void FNAME(compress_row0)(Encoder *encoder, Channel *channel, const PIXEL *cur_row,
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unsigned int width)
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{
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const unsigned int bpc = BPC;
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const unsigned int bpc_mask = BPC_MASK;
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int pos = 0;
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while ((wmimax > (int)channel->state.wmidx) && (channel->state.wmileft <= width)) {
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if (channel->state.wmileft) {
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FNAME(compress_row0_seg)(encoder, channel, pos, cur_row, pos + channel->state.wmileft,
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bppmask[channel->state.wmidx], bpc, bpc_mask);
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width -= channel->state.wmileft;
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pos += channel->state.wmileft;
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}
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channel->state.wmidx++;
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set_wm_trigger(&channel->state);
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channel->state.wmileft = wminext;
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}
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if (width) {
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FNAME(compress_row0_seg)(encoder, channel, pos, cur_row, pos + width,
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bppmask[channel->state.wmidx], bpc, bpc_mask);
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if (wmimax > (int)channel->state.wmidx) {
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channel->state.wmileft -= width;
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}
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}
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ASSERT(encoder->usr, (int)channel->state.wmidx <= wmimax);
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ASSERT(encoder->usr, channel->state.wmidx <= 32);
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ASSERT(encoder->usr, wminext > 0);
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}
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static void FNAME(compress_row_seg)(Encoder *encoder, Channel *channel, int i,
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const PIXEL * const prev_row,
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const PIXEL * const cur_row,
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const int end,
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const unsigned int waitmask,
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const unsigned int bpc,
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const unsigned int bpc_mask)
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{
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BYTE * const decorelate_drow = channel->correlate_row;
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int stopidx;
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#ifdef RLE
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int run_index = 0;
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int run_size;
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#endif
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ASSERT(encoder->usr, end - i > 0);
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if (!i) {
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unsigned int codeword, codewordlen;
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decorelate_drow[0] = family.xlatU2L[(unsigned)((int)cur_row->a -
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(int)prev_row->a) & bpc_mask];
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golomb_coding(decorelate_drow[0],
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find_bucket(channel, decorelate_drow[-1])->bestcode,
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&codeword,
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&codewordlen);
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encode(encoder, codeword, codewordlen);
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if (channel->state.waitcnt) {
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channel->state.waitcnt--;
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} else {
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channel->state.waitcnt = (tabrand(&channel->state.tabrand_seed) & waitmask);
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update_model(&channel->state, find_bucket(channel, decorelate_drow[-1]),
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decorelate_drow[0], bpc);
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}
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stopidx = ++i + channel->state.waitcnt;
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} else {
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stopidx = i + channel->state.waitcnt;
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}
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for (;;) {
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while (stopidx < end) {
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for (; i <= stopidx; i++) {
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unsigned int codeword, codewordlen;
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#ifdef RLE
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RLE_PRED_1_IMP;
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RLE_PRED_2_IMP;
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RLE_PRED_3_IMP;
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#endif
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decorelate_drow[i] = FNAME(decorelate)(&prev_row[i], &cur_row[i], bpc_mask);
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golomb_coding(decorelate_drow[i],
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find_bucket(channel, decorelate_drow[i - 1])->bestcode, &codeword,
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&codewordlen);
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encode(encoder, codeword, codewordlen);
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}
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update_model(&channel->state, find_bucket(channel, decorelate_drow[stopidx - 1]),
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decorelate_drow[stopidx], bpc);
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stopidx = i + (tabrand(&channel->state.tabrand_seed) & waitmask);
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}
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for (; i < end; i++) {
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unsigned int codeword, codewordlen;
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#ifdef RLE
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RLE_PRED_1_IMP;
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RLE_PRED_2_IMP;
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RLE_PRED_3_IMP;
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#endif
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decorelate_drow[i] = FNAME(decorelate)(&prev_row[i], &cur_row[i], bpc_mask);
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golomb_coding(decorelate_drow[i], find_bucket(channel,
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decorelate_drow[i - 1])->bestcode,
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&codeword, &codewordlen);
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encode(encoder, codeword, codewordlen);
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}
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channel->state.waitcnt = stopidx - end;
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return;
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#ifdef RLE
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do_run:
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run_index = i;
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channel->state.waitcnt = stopidx - i;
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run_size = 0;
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while (cur_row[i].a == cur_row[i - 1].a) {
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run_size++;
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if (++i == end) {
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#ifdef RLE_STAT
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encode_channel_run(encoder, channel, run_size);
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#else
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encode_run(encoder, run_size);
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#endif
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return;
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}
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}
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#ifdef RLE_STAT
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encode_channel_run(encoder, channel, run_size);
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#else
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encode_run(encoder, run_size);
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#endif
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stopidx = i + channel->state.waitcnt;
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#endif
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}
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}
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static void FNAME(compress_row)(Encoder *encoder, Channel *channel,
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const PIXEL * const prev_row,
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const PIXEL * const cur_row,
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unsigned int width)
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{
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const unsigned int bpc = BPC;
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const unsigned int bpc_mask = BPC_MASK;
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unsigned int pos = 0;
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while ((wmimax > (int)channel->state.wmidx) && (channel->state.wmileft <= width)) {
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if (channel->state.wmileft) {
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FNAME(compress_row_seg)(encoder, channel, pos, prev_row, cur_row,
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pos + channel->state.wmileft, bppmask[channel->state.wmidx],
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bpc, bpc_mask);
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width -= channel->state.wmileft;
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pos += channel->state.wmileft;
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}
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channel->state.wmidx++;
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set_wm_trigger(&channel->state);
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channel->state.wmileft = wminext;
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}
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if (width) {
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FNAME(compress_row_seg)(encoder, channel, pos, prev_row, cur_row, pos + width,
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bppmask[channel->state.wmidx], bpc, bpc_mask);
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if (wmimax > (int)channel->state.wmidx) {
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channel->state.wmileft -= width;
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}
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}
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ASSERT(encoder->usr, (int)channel->state.wmidx <= wmimax);
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ASSERT(encoder->usr, channel->state.wmidx <= 32);
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ASSERT(encoder->usr, wminext > 0);
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}
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static void FNAME(uncompress_row0_seg)(Encoder *encoder, Channel *channel, int i,
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BYTE * const correlate_row,
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PIXEL * const cur_row,
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const int end,
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const unsigned int waitmask,
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const unsigned int bpc,
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const unsigned int bpc_mask)
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{
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int stopidx;
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ASSERT(encoder->usr, end - i > 0);
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if (i == 0) {
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unsigned int codewordlen;
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correlate_row[0] = (BYTE)golomb_decoding(find_bucket(channel,
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correlate_row[-1])->bestcode,
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encoder->io_word, &codewordlen);
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cur_row[0].a = (BYTE)family.xlatL2U[correlate_row[0]];
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decode_eatbits(encoder, codewordlen);
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if (channel->state.waitcnt) {
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--channel->state.waitcnt;
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} else {
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channel->state.waitcnt = (tabrand(&channel->state.tabrand_seed) & waitmask);
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update_model(&channel->state, find_bucket(channel, correlate_row[-1]),
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correlate_row[0], bpc);
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}
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stopidx = ++i + channel->state.waitcnt;
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} else {
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stopidx = i + channel->state.waitcnt;
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}
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while (stopidx < end) {
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struct s_bucket * pbucket = NULL;
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for (; i <= stopidx; i++) {
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unsigned int codewordlen;
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pbucket = find_bucket(channel, correlate_row[i - 1]);
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correlate_row[i] = (BYTE)golomb_decoding(pbucket->bestcode, encoder->io_word,
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&codewordlen);
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FNAME(corelate_0)(&cur_row[i], correlate_row[i], bpc_mask);
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decode_eatbits(encoder, codewordlen);
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}
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update_model(&channel->state, pbucket, correlate_row[stopidx], bpc);
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stopidx = i + (tabrand(&channel->state.tabrand_seed) & waitmask);
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}
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for (; i < end; i++) {
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unsigned int codewordlen;
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correlate_row[i] = (BYTE)golomb_decoding(find_bucket(channel,
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correlate_row[i - 1])->bestcode,
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encoder->io_word, &codewordlen);
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FNAME(corelate_0)(&cur_row[i], correlate_row[i], bpc_mask);
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decode_eatbits(encoder, codewordlen);
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}
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channel->state.waitcnt = stopidx - end;
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}
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static void FNAME(uncompress_row0)(Encoder *encoder, Channel *channel,
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PIXEL * const cur_row,
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unsigned int width)
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{
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const unsigned int bpc = BPC;
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const unsigned int bpc_mask = BPC_MASK;
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BYTE * const correlate_row = channel->correlate_row;
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unsigned int pos = 0;
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while ((wmimax > (int)channel->state.wmidx) && (channel->state.wmileft <= width)) {
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if (channel->state.wmileft) {
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FNAME(uncompress_row0_seg)(encoder, channel, pos, correlate_row, cur_row,
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pos + channel->state.wmileft, bppmask[channel->state.wmidx],
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bpc, bpc_mask);
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pos += channel->state.wmileft;
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width -= channel->state.wmileft;
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}
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channel->state.wmidx++;
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set_wm_trigger(&channel->state);
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channel->state.wmileft = wminext;
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}
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if (width) {
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FNAME(uncompress_row0_seg)(encoder, channel, pos, correlate_row, cur_row, pos + width,
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bppmask[channel->state.wmidx], bpc, bpc_mask);
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if (wmimax > (int)channel->state.wmidx) {
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channel->state.wmileft -= width;
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}
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}
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ASSERT(encoder->usr, (int)channel->state.wmidx <= wmimax);
|
|
ASSERT(encoder->usr, channel->state.wmidx <= 32);
|
|
ASSERT(encoder->usr, wminext > 0);
|
|
}
|
|
|
|
static void FNAME(uncompress_row_seg)(Encoder *encoder, Channel *channel,
|
|
BYTE *correlate_row,
|
|
const PIXEL * const prev_row,
|
|
PIXEL * const cur_row,
|
|
int i,
|
|
const int end,
|
|
const unsigned int bpc,
|
|
const unsigned int bpc_mask)
|
|
{
|
|
const unsigned int waitmask = bppmask[channel->state.wmidx];
|
|
int stopidx;
|
|
#ifdef RLE
|
|
int run_index = 0;
|
|
int run_end;
|
|
#endif
|
|
|
|
ASSERT(encoder->usr, end - i > 0);
|
|
|
|
if (i == 0) {
|
|
unsigned int codewordlen;
|
|
|
|
correlate_row[0] = (BYTE)golomb_decoding(find_bucket(channel, correlate_row[-1])->bestcode,
|
|
encoder->io_word, &codewordlen);
|
|
cur_row[0].a = (family.xlatL2U[correlate_row[0]] + prev_row[0].a) & bpc_mask;
|
|
decode_eatbits(encoder, codewordlen);
|
|
|
|
if (channel->state.waitcnt) {
|
|
--channel->state.waitcnt;
|
|
} else {
|
|
channel->state.waitcnt = (tabrand(&channel->state.tabrand_seed) & waitmask);
|
|
update_model(&channel->state, find_bucket(channel, correlate_row[-1]),
|
|
correlate_row[0], bpc);
|
|
}
|
|
stopidx = ++i + channel->state.waitcnt;
|
|
} else {
|
|
stopidx = i + channel->state.waitcnt;
|
|
}
|
|
for (;;) {
|
|
while (stopidx < end) {
|
|
struct s_bucket * pbucket = NULL;
|
|
|
|
for (; i <= stopidx; i++) {
|
|
unsigned int codewordlen;
|
|
#ifdef RLE
|
|
RLE_PRED_1_IMP;
|
|
RLE_PRED_2_IMP;
|
|
RLE_PRED_3_IMP;
|
|
#endif
|
|
pbucket = find_bucket(channel, correlate_row[i - 1]);
|
|
correlate_row[i] = (BYTE)golomb_decoding(pbucket->bestcode, encoder->io_word,
|
|
&codewordlen);
|
|
FNAME(corelate)(&prev_row[i], &cur_row[i], correlate_row[i], bpc_mask);
|
|
decode_eatbits(encoder, codewordlen);
|
|
}
|
|
|
|
update_model(&channel->state, pbucket, correlate_row[stopidx], bpc);
|
|
|
|
stopidx = i + (tabrand(&channel->state.tabrand_seed) & waitmask);
|
|
}
|
|
|
|
for (; i < end; i++) {
|
|
unsigned int codewordlen;
|
|
#ifdef RLE
|
|
RLE_PRED_1_IMP;
|
|
RLE_PRED_2_IMP;
|
|
RLE_PRED_3_IMP;
|
|
#endif
|
|
correlate_row[i] = (BYTE)golomb_decoding(find_bucket(channel,
|
|
correlate_row[i - 1])->bestcode,
|
|
encoder->io_word, &codewordlen);
|
|
FNAME(corelate)(&prev_row[i], &cur_row[i], correlate_row[i], bpc_mask);
|
|
decode_eatbits(encoder, codewordlen);
|
|
}
|
|
|
|
channel->state.waitcnt = stopidx - end;
|
|
|
|
return;
|
|
|
|
#ifdef RLE
|
|
do_run:
|
|
channel->state.waitcnt = stopidx - i;
|
|
run_index = i;
|
|
#ifdef RLE_STAT
|
|
run_end = i + decode_channel_run(encoder, channel);
|
|
#else
|
|
run_end = i + decode_run(encoder);
|
|
#endif
|
|
|
|
for (; i < run_end; i++) {
|
|
cur_row[i].a = cur_row[i - 1].a;
|
|
}
|
|
|
|
if (i == end) {
|
|
return;
|
|
}
|
|
|
|
stopidx = i + channel->state.waitcnt;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static void FNAME(uncompress_row)(Encoder *encoder, Channel *channel,
|
|
const PIXEL * const prev_row,
|
|
PIXEL * const cur_row,
|
|
unsigned int width)
|
|
|
|
{
|
|
const unsigned int bpc = BPC;
|
|
const unsigned int bpc_mask = BPC_MASK;
|
|
BYTE * const correlate_row = channel->correlate_row;
|
|
unsigned int pos = 0;
|
|
|
|
while ((wmimax > (int)channel->state.wmidx) && (channel->state.wmileft <= width)) {
|
|
if (channel->state.wmileft) {
|
|
FNAME(uncompress_row_seg)(encoder, channel, correlate_row, prev_row, cur_row, pos,
|
|
pos + channel->state.wmileft, bpc, bpc_mask);
|
|
pos += channel->state.wmileft;
|
|
width -= channel->state.wmileft;
|
|
}
|
|
|
|
channel->state.wmidx++;
|
|
set_wm_trigger(&channel->state);
|
|
channel->state.wmileft = wminext;
|
|
}
|
|
|
|
if (width) {
|
|
FNAME(uncompress_row_seg)(encoder, channel, correlate_row, prev_row, cur_row, pos,
|
|
pos + width, bpc, bpc_mask);
|
|
if (wmimax > (int)channel->state.wmidx) {
|
|
channel->state.wmileft -= width;
|
|
}
|
|
}
|
|
|
|
ASSERT(encoder->usr, (int)channel->state.wmidx <= wmimax);
|
|
ASSERT(encoder->usr, channel->state.wmidx <= 32);
|
|
ASSERT(encoder->usr, wminext > 0);
|
|
}
|
|
|
|
#undef PIXEL
|
|
#undef FNAME
|
|
#undef _PIXEL_A
|
|
#undef _PIXEL_B
|
|
#undef _PIXEL_C
|
|
#undef RLE_PRED_1_IMP
|
|
#undef RLE_PRED_2_IMP
|
|
#undef RLE_PRED_3_IMP
|
|
#undef golomb_coding
|
|
#undef golomb_deoding
|
|
#undef update_model
|
|
#undef find_bucket
|
|
#undef family
|
|
#undef BPC
|
|
#undef BPC_MASK
|
|
|