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Merge "make error-code reporting consistent upon malloc failure"

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skal 2014-06-13 00:25:30 -07:00 committed by Gerrit Code Review
commit 790207679d
5 changed files with 100 additions and 91 deletions
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3
src/enc/backward_references.c
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@ -933,7 +933,8 @@ static double ComputeCacheEntropy(const uint32_t* const argb,
return entropy; return entropy;
} }
// Returns how many bits are to be used for a color cache. // *best_cache_bits will contain how many bits are to be used for a color cache.
// Returns 0 in case of memory error.
int VP8LCalculateEstimateForCacheSize(const uint32_t* const argb, int VP8LCalculateEstimateForCacheSize(const uint32_t* const argb,
int xsize, int ysize, int quality, int xsize, int ysize, int quality,
VP8LHashChain* const hash_chain, VP8LHashChain* const hash_chain,

16
src/enc/frame.c
View File

@ -398,8 +398,8 @@ static void RecordResiduals(VP8EncIterator* const it,
#if !defined(DISABLE_TOKEN_BUFFER) #if !defined(DISABLE_TOKEN_BUFFER)
static void RecordTokens(VP8EncIterator* const it, const VP8ModeScore* const rd, static int RecordTokens(VP8EncIterator* const it, const VP8ModeScore* const rd,
VP8TBuffer* const tokens) { VP8TBuffer* const tokens) {
int x, y, ch; int x, y, ch;
VP8Residual res; VP8Residual res;
VP8Encoder* const enc = it->enc_; VP8Encoder* const enc = it->enc_;
@ -445,6 +445,7 @@ static void RecordTokens(VP8EncIterator* const it, const VP8ModeScore* const rd,
} }
} }
VP8IteratorBytesToNz(it); VP8IteratorBytesToNz(it);
return !tokens->error_;
} }
#endif // !DISABLE_TOKEN_BUFFER #endif // !DISABLE_TOKEN_BUFFER
@ -651,7 +652,10 @@ static int PreLoopInitialize(VP8Encoder* const enc) {
for (p = 0; ok && p < enc->num_parts_; ++p) { for (p = 0; ok && p < enc->num_parts_; ++p) {
ok = VP8BitWriterInit(enc->parts_ + p, bytes_per_parts); ok = VP8BitWriterInit(enc->parts_ + p, bytes_per_parts);
} }
if (!ok) VP8EncFreeBitWriters(enc); // malloc error occurred if (!ok) {
VP8EncFreeBitWriters(enc); // malloc error occurred
WebPEncodingSetError(enc->pic_, VP8_ENC_ERROR_OUT_OF_MEMORY);
}
return ok; return ok;
} }
@ -780,7 +784,11 @@ int VP8EncTokenLoop(VP8Encoder* const enc) {
cnt = max_count; cnt = max_count;
} }
VP8Decimate(&it, &info, rd_opt); VP8Decimate(&it, &info, rd_opt);
RecordTokens(&it, &info, &enc->tokens_); ok = RecordTokens(&it, &info, &enc->tokens_);
if (!ok) {
WebPEncodingSetError(enc->pic_, VP8_ENC_ERROR_OUT_OF_MEMORY);
break;
}
size_p0 += info.H; size_p0 += info.H;
distortion += info.D; distortion += info.D;
if (is_last_pass) { if (is_last_pass) {

14
src/enc/syntax.c
View File

@ -263,13 +263,15 @@ static int EmitPartitionsSize(const VP8Encoder* const enc,
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------
static size_t GeneratePartition0(VP8Encoder* const enc) { static int GeneratePartition0(VP8Encoder* const enc) {
VP8BitWriter* const bw = &enc->bw_; VP8BitWriter* const bw = &enc->bw_;
const int mb_size = enc->mb_w_ * enc->mb_h_; const int mb_size = enc->mb_w_ * enc->mb_h_;
uint64_t pos1, pos2, pos3; uint64_t pos1, pos2, pos3;
pos1 = VP8BitWriterPos(bw); pos1 = VP8BitWriterPos(bw);
VP8BitWriterInit(bw, mb_size * 7 / 8); // ~7 bits per macroblock if (!VP8BitWriterInit(bw, mb_size * 7 / 8)) { // ~7 bits per macroblock
return WebPEncodingSetError(enc->pic_, VP8_ENC_ERROR_OUT_OF_MEMORY);
}
VP8PutBitUniform(bw, 0); // colorspace VP8PutBitUniform(bw, 0); // colorspace
VP8PutBitUniform(bw, 0); // clamp type VP8PutBitUniform(bw, 0); // clamp type
@ -292,7 +294,10 @@ static size_t GeneratePartition0(VP8Encoder* const enc) {
enc->pic_->stats->header_bytes[1] = (int)((pos3 - pos2 + 7) >> 3); enc->pic_->stats->header_bytes[1] = (int)((pos3 - pos2 + 7) >> 3);
enc->pic_->stats->alpha_data_size = (int)enc->alpha_data_size_; enc->pic_->stats->alpha_data_size = (int)enc->alpha_data_size_;
} }
return !bw->error_; if (bw->error_) {
return WebPEncodingSetError(enc->pic_, VP8_ENC_ERROR_OUT_OF_MEMORY);
}
return 1;
} }
void VP8EncFreeBitWriters(VP8Encoder* const enc) { void VP8EncFreeBitWriters(VP8Encoder* const enc) {
@ -314,7 +319,8 @@ int VP8EncWrite(VP8Encoder* const enc) {
int p; int p;
// Partition #0 with header and partition sizes // Partition #0 with header and partition sizes
ok = !!GeneratePartition0(enc); ok = GeneratePartition0(enc);
if (!ok) return 0;
// Compute VP8 size // Compute VP8 size
vp8_size = VP8_FRAME_HEADER_SIZE + vp8_size = VP8_FRAME_HEADER_SIZE +

4
src/enc/token.c
View File

@ -225,7 +225,7 @@ int VP8EmitTokens(VP8TBuffer* const b, VP8BitWriter* const bw,
const uint8_t* const probas, int final_pass) { const uint8_t* const probas, int final_pass) {
const VP8Tokens* p = b->pages_; const VP8Tokens* p = b->pages_;
(void)final_pass; (void)final_pass;
if (b->error_) return 0; assert(!b->error_);
while (p != NULL) { while (p != NULL) {
const VP8Tokens* const next = p->next_; const VP8Tokens* const next = p->next_;
const int N = (next == NULL) ? b->left_ : 0; const int N = (next == NULL) ? b->left_ : 0;
@ -251,7 +251,7 @@ int VP8EmitTokens(VP8TBuffer* const b, VP8BitWriter* const bw,
size_t VP8EstimateTokenSize(VP8TBuffer* const b, const uint8_t* const probas) { size_t VP8EstimateTokenSize(VP8TBuffer* const b, const uint8_t* const probas) {
size_t size = 0; size_t size = 0;
const VP8Tokens* p = b->pages_; const VP8Tokens* p = b->pages_;
if (b->error_) return 0; assert(!b->error_);
while (p != NULL) { while (p != NULL) {
const VP8Tokens* const next = p->next_; const VP8Tokens* const next = p->next_;
const int N = (next == NULL) ? b->left_ : 0; const int N = (next == NULL) ? b->left_ : 0;

154
src/enc/vp8l.c
View File

@ -181,6 +181,7 @@ static int AnalyzeAndInit(VP8LEncoder* const enc, WebPImageHint image_hint) {
return 1; return 1;
} }
// Returns false in case of memory error.
static int GetHuffBitLengthsAndCodes( static int GetHuffBitLengthsAndCodes(
const VP8LHistogramSet* const histogram_image, const VP8LHistogramSet* const histogram_image,
HuffmanTreeCode* const huffman_codes) { HuffmanTreeCode* const huffman_codes) {
@ -426,7 +427,7 @@ static void WriteHuffmanCode(VP8LBitWriter* const bw,
VP8LWriteBits(bw, depth, symbol); VP8LWriteBits(bw, depth, symbol);
} }
static void StoreImageToBitMask( static WebPEncodingError StoreImageToBitMask(
VP8LBitWriter* const bw, int width, int histo_bits, VP8LBitWriter* const bw, int width, int histo_bits,
VP8LBackwardRefs* const refs, VP8LBackwardRefs* const refs,
const uint16_t* histogram_symbols, const uint16_t* histogram_symbols,
@ -473,17 +474,19 @@ static void StoreImageToBitMask(
} }
VP8LRefsCursorNext(&c); VP8LRefsCursorNext(&c);
} }
return bw->error_ ? VP8_ENC_ERROR_OUT_OF_MEMORY : VP8_ENC_OK;
} }
// Special case of EncodeImageInternal() for cache-bits=0, histo_bits=31 // Special case of EncodeImageInternal() for cache-bits=0, histo_bits=31
static int EncodeImageNoHuffman(VP8LBitWriter* const bw, static WebPEncodingError EncodeImageNoHuffman(VP8LBitWriter* const bw,
const uint32_t* const argb, const uint32_t* const argb,
VP8LHashChain* const hash_chain, VP8LHashChain* const hash_chain,
VP8LBackwardRefs refs_array[2], VP8LBackwardRefs refs_array[2],
int width, int height, int quality) { int width, int height,
int quality) {
int i; int i;
int ok = 0;
int max_tokens = 0; int max_tokens = 0;
WebPEncodingError err = VP8_ENC_OK;
VP8LBackwardRefs* refs; VP8LBackwardRefs* refs;
HuffmanTreeToken* tokens = NULL; HuffmanTreeToken* tokens = NULL;
HuffmanTreeCode huffman_codes[5] = { { 0, NULL, NULL } }; HuffmanTreeCode huffman_codes[5] = { { 0, NULL, NULL } };
@ -491,12 +494,16 @@ static int EncodeImageNoHuffman(VP8LBitWriter* const bw,
VP8LHistogramSet* const histogram_image = VP8LAllocateHistogramSet(1, 0); VP8LHistogramSet* const histogram_image = VP8LAllocateHistogramSet(1, 0);
HuffmanTree* const huff_tree = (HuffmanTree*)WebPSafeMalloc( HuffmanTree* const huff_tree = (HuffmanTree*)WebPSafeMalloc(
3ULL * CODE_LENGTH_CODES, sizeof(*huff_tree)); 3ULL * CODE_LENGTH_CODES, sizeof(*huff_tree));
if (histogram_image == NULL || huff_tree == NULL) goto Error; if (histogram_image == NULL || huff_tree == NULL) {
err = VP8_ENC_ERROR_OUT_OF_MEMORY;
goto Error;
}
// Calculate backward references from ARGB image. // Calculate backward references from ARGB image.
refs = VP8LGetBackwardReferences(width, height, argb, quality, 0, 1, refs = VP8LGetBackwardReferences(width, height, argb, quality, 0, 1,
hash_chain, refs_array); hash_chain, refs_array);
if (refs == NULL) { if (refs == NULL) {
err = VP8_ENC_ERROR_OUT_OF_MEMORY;
goto Error; goto Error;
} }
// Build histogram image and symbols from backward references. // Build histogram image and symbols from backward references.
@ -505,6 +512,7 @@ static int EncodeImageNoHuffman(VP8LBitWriter* const bw,
// Create Huffman bit lengths and codes for each histogram image. // Create Huffman bit lengths and codes for each histogram image.
assert(histogram_image->size == 1); assert(histogram_image->size == 1);
if (!GetHuffBitLengthsAndCodes(histogram_image, huffman_codes)) { if (!GetHuffBitLengthsAndCodes(histogram_image, huffman_codes)) {
err = VP8_ENC_ERROR_OUT_OF_MEMORY;
goto Error; goto Error;
} }
@ -520,7 +528,10 @@ static int EncodeImageNoHuffman(VP8LBitWriter* const bw,
} }
tokens = (HuffmanTreeToken*)WebPSafeMalloc(max_tokens, sizeof(*tokens)); tokens = (HuffmanTreeToken*)WebPSafeMalloc(max_tokens, sizeof(*tokens));
if (tokens == NULL) goto Error; if (tokens == NULL) {
err = VP8_ENC_ERROR_OUT_OF_MEMORY;
goto Error;
}
// Store Huffman codes. // Store Huffman codes.
for (i = 0; i < 5; ++i) { for (i = 0; i < 5; ++i) {
@ -530,24 +541,25 @@ static int EncodeImageNoHuffman(VP8LBitWriter* const bw,
} }
// Store actual literals. // Store actual literals.
StoreImageToBitMask(bw, width, 0, refs, histogram_symbols, huffman_codes); err = StoreImageToBitMask(bw, width, 0, refs, histogram_symbols,
ok = 1; huffman_codes);
Error: Error:
WebPSafeFree(tokens); WebPSafeFree(tokens);
WebPSafeFree(huff_tree); WebPSafeFree(huff_tree);
VP8LFreeHistogramSet(histogram_image); VP8LFreeHistogramSet(histogram_image);
WebPSafeFree(huffman_codes[0].codes); WebPSafeFree(huffman_codes[0].codes);
return ok; return err;
} }
static int EncodeImageInternal(VP8LBitWriter* const bw, static WebPEncodingError EncodeImageInternal(VP8LBitWriter* const bw,
const uint32_t* const argb, const uint32_t* const argb,
VP8LHashChain* const hash_chain, VP8LHashChain* const hash_chain,
VP8LBackwardRefs refs_array[2], VP8LBackwardRefs refs_array[2],
int width, int height, int quality, int width, int height, int quality,
int cache_bits, int histogram_bits) { int cache_bits,
int ok = 0; int histogram_bits) {
WebPEncodingError err = VP8_ENC_OK;
const int use_2d_locality = 1; const int use_2d_locality = 1;
const int use_color_cache = (cache_bits > 0); const int use_color_cache = (cache_bits > 0);
const uint32_t histogram_image_xysize = const uint32_t histogram_image_xysize =
@ -631,12 +643,12 @@ static int EncodeImageInternal(VP8LBitWriter* const bw,
histogram_image_size = max_index; histogram_image_size = max_index;
VP8LWriteBits(bw, 3, histogram_bits - 2); VP8LWriteBits(bw, 3, histogram_bits - 2);
ok = EncodeImageNoHuffman(bw, histogram_argb, hash_chain, refs_array, err = EncodeImageNoHuffman(bw, histogram_argb, hash_chain, refs_array,
VP8LSubSampleSize(width, histogram_bits), VP8LSubSampleSize(width, histogram_bits),
VP8LSubSampleSize(height, histogram_bits), VP8LSubSampleSize(height, histogram_bits),
quality); quality);
WebPSafeFree(histogram_argb); WebPSafeFree(histogram_argb);
if (!ok) goto Error; if (err != VP8_ENC_OK) goto Error;
} }
} }
@ -665,9 +677,8 @@ static int EncodeImageInternal(VP8LBitWriter* const bw,
} }
// Store actual literals. // Store actual literals.
StoreImageToBitMask(bw, width, histogram_bits, &refs, err = StoreImageToBitMask(bw, width, histogram_bits, &refs,
histogram_symbols, huffman_codes); histogram_symbols, huffman_codes);
ok = 1;
Error: Error:
WebPSafeFree(tokens); WebPSafeFree(tokens);
@ -679,7 +690,7 @@ static int EncodeImageInternal(VP8LBitWriter* const bw,
WebPSafeFree(huffman_codes); WebPSafeFree(huffman_codes);
} }
WebPSafeFree(histogram_symbols); WebPSafeFree(histogram_symbols);
return ok; return err;
} }
// ----------------------------------------------------------------------------- // -----------------------------------------------------------------------------
@ -687,16 +698,16 @@ static int EncodeImageInternal(VP8LBitWriter* const bw,
// Check if it would be a good idea to subtract green from red and blue. We // Check if it would be a good idea to subtract green from red and blue. We
// only impact entropy in red/blue components, don't bother to look at others. // only impact entropy in red/blue components, don't bother to look at others.
static int EvalAndApplySubtractGreen(VP8LEncoder* const enc, static WebPEncodingError EvalAndApplySubtractGreen(VP8LEncoder* const enc,
int width, int height, int width, int height,
VP8LBitWriter* const bw) { VP8LBitWriter* const bw) {
if (!enc->use_palette_) { if (!enc->use_palette_) {
int i; int i;
const uint32_t* const argb = enc->argb_; const uint32_t* const argb = enc->argb_;
double bit_cost_before, bit_cost_after; double bit_cost_before, bit_cost_after;
// Allocate histogram with cache_bits = 1. // Allocate histogram with cache_bits = 1.
VP8LHistogram* const histo = VP8LAllocateHistogram(1); VP8LHistogram* const histo = VP8LAllocateHistogram(1);
if (histo == NULL) return 0; if (histo == NULL) return VP8_ENC_ERROR_OUT_OF_MEMORY;
for (i = 0; i < width * height; ++i) { for (i = 0; i < width * height; ++i) {
const uint32_t c = argb[i]; const uint32_t c = argb[i];
++histo->red_[(c >> 16) & 0xff]; ++histo->red_[(c >> 16) & 0xff];
@ -722,12 +733,12 @@ static int EvalAndApplySubtractGreen(VP8LEncoder* const enc,
VP8LSubtractGreenFromBlueAndRed(enc->argb_, width * height); VP8LSubtractGreenFromBlueAndRed(enc->argb_, width * height);
} }
} }
return 1; return VP8_ENC_OK;
} }
static int ApplyPredictFilter(const VP8LEncoder* const enc, static WebPEncodingError ApplyPredictFilter(const VP8LEncoder* const enc,
int width, int height, int quality, int width, int height, int quality,
VP8LBitWriter* const bw) { VP8LBitWriter* const bw) {
const int pred_bits = enc->transform_bits_; const int pred_bits = enc->transform_bits_;
const int transform_width = VP8LSubSampleSize(width, pred_bits); const int transform_width = VP8LSubSampleSize(width, pred_bits);
const int transform_height = VP8LSubSampleSize(height, pred_bits); const int transform_height = VP8LSubSampleSize(height, pred_bits);
@ -738,19 +749,17 @@ static int ApplyPredictFilter(const VP8LEncoder* const enc,
VP8LWriteBits(bw, 2, PREDICTOR_TRANSFORM); VP8LWriteBits(bw, 2, PREDICTOR_TRANSFORM);
assert(pred_bits >= 2); assert(pred_bits >= 2);
VP8LWriteBits(bw, 3, pred_bits - 2); VP8LWriteBits(bw, 3, pred_bits - 2);
if (!EncodeImageNoHuffman(bw, enc->transform_data_, return EncodeImageNoHuffman(bw, enc->transform_data_,
(VP8LHashChain*)&enc->hash_chain_, (VP8LHashChain*)&enc->hash_chain_,
(VP8LBackwardRefs*)enc->refs_, // cast const away (VP8LBackwardRefs*)enc->refs_, // cast const away
transform_width, transform_height, transform_width, transform_height,
quality)) { quality);
return 0;
}
return 1;
} }
static int ApplyCrossColorFilter(const VP8LEncoder* const enc, static WebPEncodingError ApplyCrossColorFilter(const VP8LEncoder* const enc,
int width, int height, int quality, int width, int height,
VP8LBitWriter* const bw) { int quality,
VP8LBitWriter* const bw) {
const int ccolor_transform_bits = enc->transform_bits_; const int ccolor_transform_bits = enc->transform_bits_;
const int transform_width = VP8LSubSampleSize(width, ccolor_transform_bits); const int transform_width = VP8LSubSampleSize(width, ccolor_transform_bits);
const int transform_height = VP8LSubSampleSize(height, ccolor_transform_bits); const int transform_height = VP8LSubSampleSize(height, ccolor_transform_bits);
@ -761,14 +770,11 @@ static int ApplyCrossColorFilter(const VP8LEncoder* const enc,
VP8LWriteBits(bw, 2, CROSS_COLOR_TRANSFORM); VP8LWriteBits(bw, 2, CROSS_COLOR_TRANSFORM);
assert(ccolor_transform_bits >= 2); assert(ccolor_transform_bits >= 2);
VP8LWriteBits(bw, 3, ccolor_transform_bits - 2); VP8LWriteBits(bw, 3, ccolor_transform_bits - 2);
if (!EncodeImageNoHuffman(bw, enc->transform_data_, return EncodeImageNoHuffman(bw, enc->transform_data_,
(VP8LHashChain*)&enc->hash_chain_, (VP8LHashChain*)&enc->hash_chain_,
(VP8LBackwardRefs*)enc->refs_, // cast const away (VP8LBackwardRefs*)enc->refs_, // cast const away
transform_width, transform_height, transform_width, transform_height,
quality)) { quality);
return 0;
}
return 1;
} }
// ----------------------------------------------------------------------------- // -----------------------------------------------------------------------------
@ -963,11 +969,8 @@ static WebPEncodingError EncodePalette(VP8LBitWriter* const bw,
for (i = palette_size - 1; i >= 1; --i) { for (i = palette_size - 1; i >= 1; --i) {
palette[i] = VP8LSubPixels(palette[i], palette[i - 1]); palette[i] = VP8LSubPixels(palette[i], palette[i - 1]);
} }
if (!EncodeImageNoHuffman(bw, palette, &enc->hash_chain_, enc->refs_, err = EncodeImageNoHuffman(bw, palette, &enc->hash_chain_, enc->refs_,
palette_size, 1, quality)) { palette_size, 1, quality);
err = VP8_ENC_ERROR_INVALID_CONFIGURATION;
goto Error;
}
Error: Error:
WebPSafeFree(row); WebPSafeFree(row);
@ -1089,23 +1092,17 @@ WebPEncodingError VP8LEncodeStream(const WebPConfig* const config,
// --------------------------------------------------------------------------- // ---------------------------------------------------------------------------
// Apply transforms and write transform data. // Apply transforms and write transform data.
if (!EvalAndApplySubtractGreen(enc, enc->current_width_, height, bw)) { err = EvalAndApplySubtractGreen(enc, enc->current_width_, height, bw);
err = VP8_ENC_ERROR_OUT_OF_MEMORY; if (err != VP8_ENC_OK) goto Error;
goto Error;
}
if (enc->use_predict_) { if (enc->use_predict_) {
if (!ApplyPredictFilter(enc, enc->current_width_, height, quality, bw)) { err = ApplyPredictFilter(enc, enc->current_width_, height, quality, bw);
err = VP8_ENC_ERROR_INVALID_CONFIGURATION; if (err != VP8_ENC_OK) goto Error;
goto Error;
}
} }
if (enc->use_cross_color_) { if (enc->use_cross_color_) {
if (!ApplyCrossColorFilter(enc, enc->current_width_, height, quality, bw)) { err = ApplyCrossColorFilter(enc, enc->current_width_, height, quality, bw);
err = VP8_ENC_ERROR_INVALID_CONFIGURATION; if (err != VP8_ENC_OK) goto Error;
goto Error;
}
} }
VP8LWriteBits(bw, 1, !TRANSFORM_PRESENT); // No more transforms. VP8LWriteBits(bw, 1, !TRANSFORM_PRESENT); // No more transforms.
@ -1117,7 +1114,7 @@ WebPEncodingError VP8LEncodeStream(const WebPConfig* const config,
if (!VP8LCalculateEstimateForCacheSize(enc->argb_, enc->current_width_, if (!VP8LCalculateEstimateForCacheSize(enc->argb_, enc->current_width_,
height, quality, &enc->hash_chain_, height, quality, &enc->hash_chain_,
&enc->refs_[0], &enc->cache_bits_)) { &enc->refs_[0], &enc->cache_bits_)) {
err = VP8_ENC_ERROR_INVALID_CONFIGURATION; err = VP8_ENC_ERROR_OUT_OF_MEMORY;
goto Error; goto Error;
} }
} }
@ -1125,12 +1122,10 @@ WebPEncodingError VP8LEncodeStream(const WebPConfig* const config,
// --------------------------------------------------------------------------- // ---------------------------------------------------------------------------
// Encode and write the transformed image. // Encode and write the transformed image.
if (!EncodeImageInternal(bw, enc->argb_, &enc->hash_chain_, enc->refs_, err = EncodeImageInternal(bw, enc->argb_, &enc->hash_chain_, enc->refs_,
enc->current_width_, height, quality, enc->current_width_, height, quality,
enc->cache_bits_, enc->histo_bits_)) { enc->cache_bits_, enc->histo_bits_);
err = VP8_ENC_ERROR_OUT_OF_MEMORY; if (err != VP8_ENC_OK) goto Error;
goto Error;
}
if (picture->stats != NULL) { if (picture->stats != NULL) {
WebPAuxStats* const stats = picture->stats; WebPAuxStats* const stats = picture->stats;
@ -1247,4 +1242,3 @@ int VP8LEncodeImage(const WebPConfig* const config,
} }
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------