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Update libwebp to version 1.0.2

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This resolves #939.
This commit is contained in:
wolfbeast 2019-01-21 13:09:32 +01:00 • committed by Roy Tam
commit 072fbe1a93
46 changed files with 395 additions and 173 deletions
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19
media/libwebp/dec/idec_dec.c
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@ -140,10 +140,9 @@ static void DoRemap(WebPIDecoder* const idec, ptrdiff_t offset) {
if (NeedCompressedAlpha(idec)) {
ALPHDecoder* const alph_dec = dec->alph_dec_;
dec->alpha_data_ += offset;
if (alph_dec != NULL) {
if (alph_dec != NULL && alph_dec->vp8l_dec_ != NULL) {
if (alph_dec->method_ == ALPHA_LOSSLESS_COMPRESSION) {
VP8LDecoder* const alph_vp8l_dec = alph_dec->vp8l_dec_;
assert(alph_vp8l_dec != NULL);
assert(dec->alpha_data_size_ >= ALPHA_HEADER_LEN);
VP8LBitReaderSetBuffer(&alph_vp8l_dec->br_,
dec->alpha_data_ + ALPHA_HEADER_LEN,
@ -449,7 +448,10 @@ static VP8StatusCode DecodeRemaining(WebPIDecoder* const idec) {
VP8Decoder* const dec = (VP8Decoder*)idec->dec_;
VP8Io* const io = &idec->io_;
assert(dec->ready_);
// Make sure partition #0 has been read before, to set dec to ready_.
if (!dec->ready_) {
return IDecError(idec, VP8_STATUS_BITSTREAM_ERROR);
}
for (; dec->mb_y_ < dec->mb_h_; ++dec->mb_y_) {
if (idec->last_mb_y_ != dec->mb_y_) {
if (!VP8ParseIntraModeRow(&dec->br_, dec)) {
@ -471,6 +473,12 @@ static VP8StatusCode DecodeRemaining(WebPIDecoder* const idec) {
MemDataSize(&idec->mem_) > MAX_MB_SIZE) {
return IDecError(idec, VP8_STATUS_BITSTREAM_ERROR);
}
// Synchronize the threads.
if (dec->mt_method_ > 0) {
if (!WebPGetWorkerInterface()->Sync(&dec->worker_)) {
return IDecError(idec, VP8_STATUS_BITSTREAM_ERROR);
}
}
RestoreContext(&context, dec, token_br);
return VP8_STATUS_SUSPENDED;
}
@ -489,6 +497,7 @@ static VP8StatusCode DecodeRemaining(WebPIDecoder* const idec) {
}
// Synchronize the thread and check for errors.
if (!VP8ExitCritical(dec, io)) {
idec->state_ = STATE_ERROR; // prevent re-entry in IDecError
return IDecError(idec, VP8_STATUS_USER_ABORT);
}
dec->ready_ = 0;
@ -569,6 +578,10 @@ static VP8StatusCode IDecode(WebPIDecoder* idec) {
status = DecodePartition0(idec);
}
if (idec->state_ == STATE_VP8_DATA) {
const VP8Decoder* const dec = (VP8Decoder*)idec->dec_;
if (dec == NULL) {
return VP8_STATUS_SUSPENDED; // can't continue if we have no decoder.
}
status = DecodeRemaining(idec);
}
if (idec->state_ == STATE_VP8L_HEADER) {