diff options
Diffstat (limited to 'thirdparty/libwebp/src/enc/vp8l_enc.c')
| -rw-r--r-- | thirdparty/libwebp/src/enc/vp8l_enc.c | 527 |
1 files changed, 293 insertions, 234 deletions
diff --git a/thirdparty/libwebp/src/enc/vp8l_enc.c b/thirdparty/libwebp/src/enc/vp8l_enc.c index e330e716f1..2b345df610 100644 --- a/thirdparty/libwebp/src/enc/vp8l_enc.c +++ b/thirdparty/libwebp/src/enc/vp8l_enc.c @@ -15,15 +15,16 @@ #include <assert.h> #include <stdlib.h> +#include "src/dsp/lossless.h" +#include "src/dsp/lossless_common.h" #include "src/enc/backward_references_enc.h" #include "src/enc/histogram_enc.h" #include "src/enc/vp8i_enc.h" #include "src/enc/vp8li_enc.h" -#include "src/dsp/lossless.h" -#include "src/dsp/lossless_common.h" #include "src/utils/bit_writer_utils.h" #include "src/utils/huffman_encode_utils.h" #include "src/utils/utils.h" +#include "src/webp/encode.h" #include "src/webp/format_constants.h" // Maximum number of histogram images (sub-blocks). @@ -183,10 +184,9 @@ static void CoOccurrenceFindMax(const uint32_t* const cooccurrence, } // Builds the cooccurrence matrix -static WebPEncodingError CoOccurrenceBuild(const WebPPicture* const pic, - const uint32_t* const palette, - uint32_t num_colors, - uint32_t* cooccurrence) { +static int CoOccurrenceBuild(const WebPPicture* const pic, + const uint32_t* const palette, uint32_t num_colors, + uint32_t* cooccurrence) { uint32_t *lines, *line_top, *line_current, *line_tmp; int x, y; const uint32_t* src = pic->argb; @@ -195,7 +195,10 @@ static WebPEncodingError CoOccurrenceBuild(const WebPPicture* const pic, uint32_t idx_map[MAX_PALETTE_SIZE] = {0}; uint32_t palette_sorted[MAX_PALETTE_SIZE]; lines = (uint32_t*)WebPSafeMalloc(2 * pic->width, sizeof(*lines)); - if (lines == NULL) return VP8_ENC_ERROR_OUT_OF_MEMORY; + if (lines == NULL) { + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); + return 0; + } line_top = &lines[0]; line_current = &lines[pic->width]; PrepareMapToPalette(palette, num_colors, palette_sorted, idx_map); @@ -226,7 +229,7 @@ static WebPEncodingError CoOccurrenceBuild(const WebPPicture* const pic, src += pic->argb_stride; } WebPSafeFree(lines); - return VP8_ENC_OK; + return 1; } struct Sum { @@ -237,7 +240,7 @@ struct Sum { // Implements the modified Zeng method from "A Survey on Palette Reordering // Methods for Improving the Compression of Color-Indexed Images" by Armando J. // Pinho and Antonio J. R. Neves. -static WebPEncodingError PaletteSortModifiedZeng( +static int PaletteSortModifiedZeng( const WebPPicture* const pic, const uint32_t* const palette_sorted, uint32_t num_colors, uint32_t* const palette) { uint32_t i, j, ind; @@ -247,15 +250,16 @@ static WebPEncodingError PaletteSortModifiedZeng( uint32_t first, last; uint32_t num_sums; // TODO(vrabaud) check whether one color images should use palette or not. - if (num_colors <= 1) return VP8_ENC_OK; + if (num_colors <= 1) return 1; // Build the co-occurrence matrix. cooccurrence = (uint32_t*)WebPSafeCalloc(num_colors * num_colors, sizeof(*cooccurrence)); - if (cooccurrence == NULL) return VP8_ENC_ERROR_OUT_OF_MEMORY; - if (CoOccurrenceBuild(pic, palette_sorted, num_colors, cooccurrence) != - VP8_ENC_OK) { - WebPSafeFree(cooccurrence); - return VP8_ENC_ERROR_OUT_OF_MEMORY; + if (cooccurrence == NULL) { + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); + return 0; + } + if (!CoOccurrenceBuild(pic, palette_sorted, num_colors, cooccurrence)) { + return 0; } // Initialize the mapping list with the two best indices. @@ -316,7 +320,7 @@ static WebPEncodingError PaletteSortModifiedZeng( for (i = 0; i < num_colors; ++i) { palette[i] = palette_sorted[remapping[(first + i) % num_colors]]; } - return VP8_ENC_OK; + return 1; } // ----------------------------------------------------------------------------- @@ -434,8 +438,8 @@ static int AnalyzeEntropy(const uint32_t* argb, curr_row += argb_stride; } { - double entropy_comp[kHistoTotal]; - double entropy[kNumEntropyIx]; + float entropy_comp[kHistoTotal]; + float entropy[kNumEntropyIx]; int k; int last_mode_to_analyze = use_palette ? kPalette : kSpatialSubGreen; int j; @@ -949,11 +953,11 @@ static WEBP_INLINE void WriteHuffmanCodeWithExtraBits( VP8LPutBits(bw, (bits << depth) | symbol, depth + n_bits); } -static WebPEncodingError StoreImageToBitMask( +static int StoreImageToBitMask( VP8LBitWriter* const bw, int width, int histo_bits, const VP8LBackwardRefs* const refs, const uint16_t* histogram_symbols, - const HuffmanTreeCode* const huffman_codes) { + const HuffmanTreeCode* const huffman_codes, const WebPPicture* const pic) { const int histo_xsize = histo_bits ? VP8LSubSampleSize(width, histo_bits) : 1; const int tile_mask = (histo_bits == 0) ? 0 : -(1 << histo_bits); // x and y trace the position in the image. @@ -1006,44 +1010,53 @@ static WebPEncodingError StoreImageToBitMask( } VP8LRefsCursorNext(&c); } - return bw->error_ ? VP8_ENC_ERROR_OUT_OF_MEMORY : VP8_ENC_OK; + if (bw->error_) { + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); + return 0; + } + return 1; } -// Special case of EncodeImageInternal() for cache-bits=0, histo_bits=31 -static WebPEncodingError EncodeImageNoHuffman( - VP8LBitWriter* const bw, const uint32_t* const argb, - VP8LHashChain* const hash_chain, VP8LBackwardRefs* const refs_array, - int width, int height, int quality, int low_effort) { +// Special case of EncodeImageInternal() for cache-bits=0, histo_bits=31. +// pic and percent are for progress. +static int EncodeImageNoHuffman(VP8LBitWriter* const bw, + const uint32_t* const argb, + VP8LHashChain* const hash_chain, + VP8LBackwardRefs* const refs_array, int width, + int height, int quality, int low_effort, + const WebPPicture* const pic, int percent_range, + int* const percent) { int i; int max_tokens = 0; - WebPEncodingError err = VP8_ENC_OK; VP8LBackwardRefs* refs; HuffmanTreeToken* tokens = NULL; - HuffmanTreeCode huffman_codes[5] = { { 0, NULL, NULL } }; - const uint16_t histogram_symbols[1] = { 0 }; // only one tree, one symbol + HuffmanTreeCode huffman_codes[5] = {{0, NULL, NULL}}; + const uint16_t histogram_symbols[1] = {0}; // only one tree, one symbol int cache_bits = 0; VP8LHistogramSet* histogram_image = NULL; HuffmanTree* const huff_tree = (HuffmanTree*)WebPSafeMalloc( - 3ULL * CODE_LENGTH_CODES, sizeof(*huff_tree)); + 3ULL * CODE_LENGTH_CODES, sizeof(*huff_tree)); if (huff_tree == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } // Calculate backward references from ARGB image. - if (!VP8LHashChainFill(hash_chain, quality, argb, width, height, - low_effort)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + if (!VP8LHashChainFill(hash_chain, quality, argb, width, height, low_effort, + pic, percent_range / 2, percent)) { + goto Error; + } + if (!VP8LGetBackwardReferences(width, height, argb, quality, /*low_effort=*/0, + kLZ77Standard | kLZ77RLE, cache_bits, + /*do_no_cache=*/0, hash_chain, refs_array, + &cache_bits, pic, + percent_range - percent_range / 2, percent)) { goto Error; } - err = VP8LGetBackwardReferences( - width, height, argb, quality, /*low_effort=*/0, kLZ77Standard | kLZ77RLE, - cache_bits, /*do_no_cache=*/0, hash_chain, refs_array, &cache_bits); - if (err != VP8_ENC_OK) goto Error; refs = &refs_array[0]; histogram_image = VP8LAllocateHistogramSet(1, cache_bits); if (histogram_image == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } VP8LHistogramSetClear(histogram_image); @@ -1054,7 +1067,7 @@ static WebPEncodingError EncodeImageNoHuffman( // Create Huffman bit lengths and codes for each histogram image. assert(histogram_image->size == 1); if (!GetHuffBitLengthsAndCodes(histogram_image, huffman_codes)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } @@ -1071,7 +1084,7 @@ static WebPEncodingError EncodeImageNoHuffman( tokens = (HuffmanTreeToken*)WebPSafeMalloc(max_tokens, sizeof(*tokens)); if (tokens == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } @@ -1083,27 +1096,32 @@ static WebPEncodingError EncodeImageNoHuffman( } // Store actual literals. - err = StoreImageToBitMask(bw, width, 0, refs, histogram_symbols, - huffman_codes); + if (!StoreImageToBitMask(bw, width, 0, refs, histogram_symbols, huffman_codes, + pic)) { + goto Error; + } Error: WebPSafeFree(tokens); WebPSafeFree(huff_tree); VP8LFreeHistogramSet(histogram_image); WebPSafeFree(huffman_codes[0].codes); - return err; + return (pic->error_code == VP8_ENC_OK); } -static WebPEncodingError EncodeImageInternal( +// pic and percent are for progress. +static int EncodeImageInternal( VP8LBitWriter* const bw, const uint32_t* const argb, VP8LHashChain* const hash_chain, VP8LBackwardRefs refs_array[4], int width, int height, int quality, int low_effort, int use_cache, const CrunchConfig* const config, int* cache_bits, int histogram_bits, - size_t init_byte_position, int* const hdr_size, int* const data_size) { - WebPEncodingError err = VP8_ENC_ERROR_OUT_OF_MEMORY; + size_t init_byte_position, int* const hdr_size, int* const data_size, + const WebPPicture* const pic, int percent_range, int* const percent) { const uint32_t histogram_image_xysize = VP8LSubSampleSize(width, histogram_bits) * VP8LSubSampleSize(height, histogram_bits); + int remaining_percent = percent_range; + int percent_start = *percent; VP8LHistogramSet* histogram_image = NULL; VP8LHistogram* tmp_histo = NULL; int histogram_image_size = 0; @@ -1112,9 +1130,8 @@ static WebPEncodingError EncodeImageInternal( 3ULL * CODE_LENGTH_CODES, sizeof(*huff_tree)); HuffmanTreeToken* tokens = NULL; HuffmanTreeCode* huffman_codes = NULL; - uint16_t* const histogram_symbols = - (uint16_t*)WebPSafeMalloc(histogram_image_xysize, - sizeof(*histogram_symbols)); + uint16_t* const histogram_symbols = (uint16_t*)WebPSafeMalloc( + histogram_image_xysize, sizeof(*histogram_symbols)); int sub_configs_idx; int cache_bits_init, write_histogram_image; VP8LBitWriter bw_init = *bw, bw_best; @@ -1126,14 +1143,27 @@ static WebPEncodingError EncodeImageInternal( assert(hdr_size != NULL); assert(data_size != NULL); - // Make sure we can allocate the different objects. memset(&hash_chain_histogram, 0, sizeof(hash_chain_histogram)); + if (!VP8LBitWriterInit(&bw_best, 0)) { + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); + goto Error; + } + + // Make sure we can allocate the different objects. if (huff_tree == NULL || histogram_symbols == NULL || - !VP8LHashChainInit(&hash_chain_histogram, histogram_image_xysize) || - !VP8LHashChainFill(hash_chain, quality, argb, width, height, - low_effort)) { + !VP8LHashChainInit(&hash_chain_histogram, histogram_image_xysize)) { + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); + goto Error; + } + + percent_range = remaining_percent / 5; + if (!VP8LHashChainFill(hash_chain, quality, argb, width, height, + low_effort, pic, percent_range, percent)) { goto Error; } + percent_start += percent_range; + remaining_percent -= percent_range; + if (use_cache) { // If the value is different from zero, it has been set during the // palette analysis. @@ -1142,22 +1172,27 @@ static WebPEncodingError EncodeImageInternal( cache_bits_init = 0; } // If several iterations will happen, clone into bw_best. - if (!VP8LBitWriterInit(&bw_best, 0) || - ((config->sub_configs_size_ > 1 || - config->sub_configs_[0].do_no_cache_) && - !VP8LBitWriterClone(bw, &bw_best))) { + if ((config->sub_configs_size_ > 1 || config->sub_configs_[0].do_no_cache_) && + !VP8LBitWriterClone(bw, &bw_best)) { + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } + for (sub_configs_idx = 0; sub_configs_idx < config->sub_configs_size_; ++sub_configs_idx) { const CrunchSubConfig* const sub_config = &config->sub_configs_[sub_configs_idx]; int cache_bits_best, i_cache; - err = VP8LGetBackwardReferences(width, height, argb, quality, low_effort, - sub_config->lz77_, cache_bits_init, - sub_config->do_no_cache_, hash_chain, - &refs_array[0], &cache_bits_best); - if (err != VP8_ENC_OK) goto Error; + int i_remaining_percent = remaining_percent / config->sub_configs_size_; + int i_percent_range = i_remaining_percent / 4; + i_remaining_percent -= i_percent_range; + + if (!VP8LGetBackwardReferences( + width, height, argb, quality, low_effort, sub_config->lz77_, + cache_bits_init, sub_config->do_no_cache_, hash_chain, + &refs_array[0], &cache_bits_best, pic, i_percent_range, percent)) { + goto Error; + } for (i_cache = 0; i_cache < (sub_config->do_no_cache_ ? 2 : 1); ++i_cache) { const int cache_bits_tmp = (i_cache == 0) ? cache_bits_best : 0; @@ -1172,11 +1207,17 @@ static WebPEncodingError EncodeImageInternal( histogram_image = VP8LAllocateHistogramSet(histogram_image_xysize, cache_bits_tmp); tmp_histo = VP8LAllocateHistogram(cache_bits_tmp); - if (histogram_image == NULL || tmp_histo == NULL || - !VP8LGetHistoImageSymbols(width, height, &refs_array[i_cache], - quality, low_effort, histogram_bits, - cache_bits_tmp, histogram_image, tmp_histo, - histogram_symbols)) { + if (histogram_image == NULL || tmp_histo == NULL) { + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); + goto Error; + } + + i_percent_range = i_remaining_percent / 3; + i_remaining_percent -= i_percent_range; + if (!VP8LGetHistoImageSymbols( + width, height, &refs_array[i_cache], quality, low_effort, + histogram_bits, cache_bits_tmp, histogram_image, tmp_histo, + histogram_symbols, pic, i_percent_range, percent)) { goto Error; } // Create Huffman bit lengths and codes for each histogram image. @@ -1189,6 +1230,7 @@ static WebPEncodingError EncodeImageInternal( // GetHuffBitLengthsAndCodes(). if (huffman_codes == NULL || !GetHuffBitLengthsAndCodes(histogram_image, huffman_codes)) { + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } // Free combined histograms. @@ -1211,12 +1253,14 @@ static WebPEncodingError EncodeImageInternal( write_histogram_image = (histogram_image_size > 1); VP8LPutBits(bw, write_histogram_image, 1); if (write_histogram_image) { - uint32_t* const histogram_argb = - (uint32_t*)WebPSafeMalloc(histogram_image_xysize, - sizeof(*histogram_argb)); + uint32_t* const histogram_argb = (uint32_t*)WebPSafeMalloc( + histogram_image_xysize, sizeof(*histogram_argb)); int max_index = 0; uint32_t i; - if (histogram_argb == NULL) goto Error; + if (histogram_argb == NULL) { + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); + goto Error; + } for (i = 0; i < histogram_image_xysize; ++i) { const int symbol_index = histogram_symbols[i] & 0xffff; histogram_argb[i] = (symbol_index << 8); @@ -1227,12 +1271,17 @@ static WebPEncodingError EncodeImageInternal( histogram_image_size = max_index; VP8LPutBits(bw, histogram_bits - 2, 3); - err = EncodeImageNoHuffman( - bw, histogram_argb, &hash_chain_histogram, &refs_array[2], - VP8LSubSampleSize(width, histogram_bits), - VP8LSubSampleSize(height, histogram_bits), quality, low_effort); + i_percent_range = i_remaining_percent / 2; + i_remaining_percent -= i_percent_range; + if (!EncodeImageNoHuffman( + bw, histogram_argb, &hash_chain_histogram, &refs_array[2], + VP8LSubSampleSize(width, histogram_bits), + VP8LSubSampleSize(height, histogram_bits), quality, low_effort, + pic, i_percent_range, percent)) { + WebPSafeFree(histogram_argb); + goto Error; + } WebPSafeFree(histogram_argb); - if (err != VP8_ENC_OK) goto Error; } // Store Huffman codes. @@ -1256,9 +1305,10 @@ static WebPEncodingError EncodeImageInternal( } // Store actual literals. hdr_size_tmp = (int)(VP8LBitWriterNumBytes(bw) - init_byte_position); - err = StoreImageToBitMask(bw, width, histogram_bits, &refs_array[i_cache], - histogram_symbols, huffman_codes); - if (err != VP8_ENC_OK) goto Error; + if (!StoreImageToBitMask(bw, width, histogram_bits, &refs_array[i_cache], + histogram_symbols, huffman_codes, pic)) { + goto Error; + } // Keep track of the smallest image so far. if (VP8LBitWriterNumBytes(bw) < bw_size_best) { bw_size_best = VP8LBitWriterNumBytes(bw); @@ -1278,7 +1328,10 @@ static WebPEncodingError EncodeImageInternal( } } VP8LBitWriterSwap(bw, &bw_best); - err = VP8_ENC_OK; + + if (!WebPReportProgress(pic, percent_start + remaining_percent, percent)) { + goto Error; + } Error: WebPSafeFree(tokens); @@ -1292,7 +1345,7 @@ static WebPEncodingError EncodeImageInternal( } WebPSafeFree(histogram_symbols); VP8LBitWriterWipeOut(&bw_best); - return err; + return (pic->error_code == VP8_ENC_OK); } // ----------------------------------------------------------------------------- @@ -1305,22 +1358,23 @@ static void ApplySubtractGreen(VP8LEncoder* const enc, int width, int height, VP8LSubtractGreenFromBlueAndRed(enc->argb_, width * height); } -static WebPEncodingError ApplyPredictFilter(const VP8LEncoder* const enc, - int width, int height, - int quality, int low_effort, - int used_subtract_green, - VP8LBitWriter* const bw) { +static int ApplyPredictFilter(const VP8LEncoder* const enc, int width, + int height, int quality, int low_effort, + int used_subtract_green, VP8LBitWriter* const bw, + int percent_range, int* const percent) { const int pred_bits = enc->transform_bits_; const int transform_width = VP8LSubSampleSize(width, pred_bits); const int transform_height = VP8LSubSampleSize(height, pred_bits); // we disable near-lossless quantization if palette is used. - const int near_lossless_strength = enc->use_palette_ ? 100 - : enc->config_->near_lossless; + const int near_lossless_strength = + enc->use_palette_ ? 100 : enc->config_->near_lossless; - VP8LResidualImage(width, height, pred_bits, low_effort, enc->argb_, - enc->argb_scratch_, enc->transform_data_, - near_lossless_strength, enc->config_->exact, - used_subtract_green); + if (!VP8LResidualImage( + width, height, pred_bits, low_effort, enc->argb_, enc->argb_scratch_, + enc->transform_data_, near_lossless_strength, enc->config_->exact, + used_subtract_green, enc->pic_, percent_range / 2, percent)) { + return 0; + } VP8LPutBits(bw, TRANSFORM_PRESENT, 1); VP8LPutBits(bw, PREDICTOR_TRANSFORM, 2); assert(pred_bits >= 2); @@ -1328,19 +1382,23 @@ static WebPEncodingError ApplyPredictFilter(const VP8LEncoder* const enc, return EncodeImageNoHuffman( bw, enc->transform_data_, (VP8LHashChain*)&enc->hash_chain_, (VP8LBackwardRefs*)&enc->refs_[0], transform_width, transform_height, - quality, low_effort); + quality, low_effort, enc->pic_, percent_range - percent_range / 2, + percent); } -static WebPEncodingError ApplyCrossColorFilter(const VP8LEncoder* const enc, - int width, int height, - int quality, int low_effort, - VP8LBitWriter* const bw) { +static int ApplyCrossColorFilter(const VP8LEncoder* const enc, int width, + int height, int quality, int low_effort, + VP8LBitWriter* const bw, int percent_range, + int* const percent) { const int ccolor_transform_bits = enc->transform_bits_; const int transform_width = VP8LSubSampleSize(width, ccolor_transform_bits); const int transform_height = VP8LSubSampleSize(height, ccolor_transform_bits); - VP8LColorSpaceTransform(width, height, ccolor_transform_bits, quality, - enc->argb_, enc->transform_data_); + if (!VP8LColorSpaceTransform(width, height, ccolor_transform_bits, quality, + enc->argb_, enc->transform_data_, enc->pic_, + percent_range / 2, percent)) { + return 0; + } VP8LPutBits(bw, TRANSFORM_PRESENT, 1); VP8LPutBits(bw, CROSS_COLOR_TRANSFORM, 2); assert(ccolor_transform_bits >= 2); @@ -1348,23 +1406,21 @@ static WebPEncodingError ApplyCrossColorFilter(const VP8LEncoder* const enc, return EncodeImageNoHuffman( bw, enc->transform_data_, (VP8LHashChain*)&enc->hash_chain_, (VP8LBackwardRefs*)&enc->refs_[0], transform_width, transform_height, - quality, low_effort); + quality, low_effort, enc->pic_, percent_range - percent_range / 2, + percent); } // ----------------------------------------------------------------------------- -static WebPEncodingError WriteRiffHeader(const WebPPicture* const pic, - size_t riff_size, size_t vp8l_size) { +static int WriteRiffHeader(const WebPPicture* const pic, size_t riff_size, + size_t vp8l_size) { uint8_t riff[RIFF_HEADER_SIZE + CHUNK_HEADER_SIZE + VP8L_SIGNATURE_SIZE] = { 'R', 'I', 'F', 'F', 0, 0, 0, 0, 'W', 'E', 'B', 'P', 'V', 'P', '8', 'L', 0, 0, 0, 0, VP8L_MAGIC_BYTE, }; PutLE32(riff + TAG_SIZE, (uint32_t)riff_size); PutLE32(riff + RIFF_HEADER_SIZE + TAG_SIZE, (uint32_t)vp8l_size); - if (!pic->writer(riff, sizeof(riff), pic)) { - return VP8_ENC_ERROR_BAD_WRITE; - } - return VP8_ENC_OK; + return pic->writer(riff, sizeof(riff), pic); } static int WriteImageSize(const WebPPicture* const pic, @@ -1384,36 +1440,29 @@ static int WriteRealAlphaAndVersion(VP8LBitWriter* const bw, int has_alpha) { return !bw->error_; } -static WebPEncodingError WriteImage(const WebPPicture* const pic, - VP8LBitWriter* const bw, - size_t* const coded_size) { - WebPEncodingError err = VP8_ENC_OK; +static int WriteImage(const WebPPicture* const pic, VP8LBitWriter* const bw, + size_t* const coded_size) { const uint8_t* const webpll_data = VP8LBitWriterFinish(bw); const size_t webpll_size = VP8LBitWriterNumBytes(bw); const size_t vp8l_size = VP8L_SIGNATURE_SIZE + webpll_size; const size_t pad = vp8l_size & 1; const size_t riff_size = TAG_SIZE + CHUNK_HEADER_SIZE + vp8l_size + pad; - err = WriteRiffHeader(pic, riff_size, vp8l_size); - if (err != VP8_ENC_OK) goto Error; - - if (!pic->writer(webpll_data, webpll_size, pic)) { - err = VP8_ENC_ERROR_BAD_WRITE; - goto Error; + if (!WriteRiffHeader(pic, riff_size, vp8l_size) || + !pic->writer(webpll_data, webpll_size, pic)) { + WebPEncodingSetError(pic, VP8_ENC_ERROR_BAD_WRITE); + return 0; } if (pad) { const uint8_t pad_byte[1] = { 0 }; if (!pic->writer(pad_byte, 1, pic)) { - err = VP8_ENC_ERROR_BAD_WRITE; - goto Error; + WebPEncodingSetError(pic, VP8_ENC_ERROR_BAD_WRITE); + return 0; } } *coded_size = CHUNK_HEADER_SIZE + riff_size; - return VP8_ENC_OK; - - Error: - return err; + return 1; } // ----------------------------------------------------------------------------- @@ -1429,18 +1478,16 @@ static void ClearTransformBuffer(VP8LEncoder* const enc) { // Flags influencing the memory allocated: // enc->transform_bits_ // enc->use_predict_, enc->use_cross_color_ -static WebPEncodingError AllocateTransformBuffer(VP8LEncoder* const enc, - int width, int height) { - WebPEncodingError err = VP8_ENC_OK; +static int AllocateTransformBuffer(VP8LEncoder* const enc, int width, + int height) { const uint64_t image_size = width * height; // VP8LResidualImage needs room for 2 scanlines of uint32 pixels with an extra // pixel in each, plus 2 regular scanlines of bytes. // TODO(skal): Clean up by using arithmetic in bytes instead of words. const uint64_t argb_scratch_size = - enc->use_predict_ - ? (width + 1) * 2 + - (width * 2 + sizeof(uint32_t) - 1) / sizeof(uint32_t) - : 0; + enc->use_predict_ ? (width + 1) * 2 + (width * 2 + sizeof(uint32_t) - 1) / + sizeof(uint32_t) + : 0; const uint64_t transform_data_size = (enc->use_predict_ || enc->use_cross_color_) ? VP8LSubSampleSize(width, enc->transform_bits_) * @@ -1448,17 +1495,16 @@ static WebPEncodingError AllocateTransformBuffer(VP8LEncoder* const enc, : 0; const uint64_t max_alignment_in_words = (WEBP_ALIGN_CST + sizeof(uint32_t) - 1) / sizeof(uint32_t); - const uint64_t mem_size = - image_size + max_alignment_in_words + - argb_scratch_size + max_alignment_in_words + - transform_data_size; + const uint64_t mem_size = image_size + max_alignment_in_words + + argb_scratch_size + max_alignment_in_words + + transform_data_size; uint32_t* mem = enc->transform_mem_; if (mem == NULL || mem_size > enc->transform_mem_size_) { ClearTransformBuffer(enc); mem = (uint32_t*)WebPSafeMalloc(mem_size, sizeof(*mem)); if (mem == NULL) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; - goto Error; + WebPEncodingSetError(enc->pic_, VP8_ENC_ERROR_OUT_OF_MEMORY); + return 0; } enc->transform_mem_ = mem; enc->transform_mem_size_ = (size_t)mem_size; @@ -1471,19 +1517,16 @@ static WebPEncodingError AllocateTransformBuffer(VP8LEncoder* const enc, enc->transform_data_ = mem; enc->current_width_ = width; - Error: - return err; + return 1; } -static WebPEncodingError MakeInputImageCopy(VP8LEncoder* const enc) { - WebPEncodingError err = VP8_ENC_OK; +static int MakeInputImageCopy(VP8LEncoder* const enc) { const WebPPicture* const picture = enc->pic_; const int width = picture->width; const int height = picture->height; - err = AllocateTransformBuffer(enc, width, height); - if (err != VP8_ENC_OK) return err; - if (enc->argb_content_ == kEncoderARGB) return VP8_ENC_OK; + if (!AllocateTransformBuffer(enc, width, height)) return 0; + if (enc->argb_content_ == kEncoderARGB) return 1; { uint32_t* dst = enc->argb_; @@ -1497,7 +1540,7 @@ static WebPEncodingError MakeInputImageCopy(VP8LEncoder* const enc) { } enc->argb_content_ = kEncoderARGB; assert(enc->current_width_ == width); - return VP8_ENC_OK; + return 1; } // ----------------------------------------------------------------------------- @@ -1559,16 +1602,19 @@ static WEBP_INLINE uint32_t ApplyPaletteHash2(uint32_t color) { // using 'row' as a temporary buffer of size 'width'. // We assume that all src[] values have a corresponding entry in the palette. // Note: src[] can be the same as dst[] -static WebPEncodingError ApplyPalette(const uint32_t* src, uint32_t src_stride, - uint32_t* dst, uint32_t dst_stride, - const uint32_t* palette, int palette_size, - int width, int height, int xbits) { +static int ApplyPalette(const uint32_t* src, uint32_t src_stride, uint32_t* dst, + uint32_t dst_stride, const uint32_t* palette, + int palette_size, int width, int height, int xbits, + const WebPPicture* const pic) { // TODO(skal): this tmp buffer is not needed if VP8LBundleColorMap() can be // made to work in-place. uint8_t* const tmp_row = (uint8_t*)WebPSafeMalloc(width, sizeof(*tmp_row)); int x, y; - if (tmp_row == NULL) return VP8_ENC_ERROR_OUT_OF_MEMORY; + if (tmp_row == NULL) { + WebPEncodingSetError(pic, VP8_ENC_ERROR_OUT_OF_MEMORY); + return 0; + } if (palette_size < APPLY_PALETTE_GREEDY_MAX) { APPLY_PALETTE_FOR(SearchColorGreedy(palette, palette_size, pix)); @@ -1613,7 +1659,7 @@ static WebPEncodingError ApplyPalette(const uint32_t* src, uint32_t src_stride, } } WebPSafeFree(tmp_row); - return VP8_ENC_OK; + return 1; } #undef APPLY_PALETTE_FOR #undef PALETTE_INV_SIZE_BITS @@ -1621,9 +1667,7 @@ static WebPEncodingError ApplyPalette(const uint32_t* src, uint32_t src_stride, #undef APPLY_PALETTE_GREEDY_MAX // Note: Expects "enc->palette_" to be set properly. -static WebPEncodingError MapImageFromPalette(VP8LEncoder* const enc, - int in_place) { - WebPEncodingError err = VP8_ENC_OK; +static int MapImageFromPalette(VP8LEncoder* const enc, int in_place) { const WebPPicture* const pic = enc->pic_; const int width = pic->width; const int height = pic->height; @@ -1641,19 +1685,22 @@ static WebPEncodingError MapImageFromPalette(VP8LEncoder* const enc, xbits = (palette_size <= 16) ? 1 : 0; } - err = AllocateTransformBuffer(enc, VP8LSubSampleSize(width, xbits), height); - if (err != VP8_ENC_OK) return err; - - err = ApplyPalette(src, src_stride, + if (!AllocateTransformBuffer(enc, VP8LSubSampleSize(width, xbits), height)) { + return 0; + } + if (!ApplyPalette(src, src_stride, enc->argb_, enc->current_width_, - palette, palette_size, width, height, xbits); + palette, palette_size, width, height, xbits, pic)) { + return 0; + } enc->argb_content_ = kEncoderPalette; - return err; + return 1; } // Save palette_[] to bitstream. static WebPEncodingError EncodePalette(VP8LBitWriter* const bw, int low_effort, - VP8LEncoder* const enc) { + VP8LEncoder* const enc, + int percent_range, int* const percent) { int i; uint32_t tmp_palette[MAX_PALETTE_SIZE]; const int palette_size = enc->palette_size_; @@ -1668,7 +1715,7 @@ static WebPEncodingError EncodePalette(VP8LBitWriter* const bw, int low_effort, tmp_palette[0] = palette[0]; return EncodeImageNoHuffman(bw, tmp_palette, &enc->hash_chain_, &enc->refs_[0], palette_size, 1, /*quality=*/20, - low_effort); + low_effort, enc->pic_, percent_range, percent); } // ----------------------------------------------------------------------------- @@ -1712,7 +1759,6 @@ typedef struct { CrunchConfig crunch_configs_[CRUNCH_CONFIGS_MAX]; int num_crunch_configs_; int red_and_blue_always_zero_; - WebPEncodingError err_; WebPAuxStats* stats_; } StreamEncodeContext; @@ -1729,7 +1775,6 @@ static int EncodeStreamHook(void* input, void* data2) { #if !defined(WEBP_DISABLE_STATS) WebPAuxStats* const stats = params->stats_; #endif - WebPEncodingError err = VP8_ENC_OK; const int quality = (int)config->quality; const int low_effort = (config->method == 0); #if (WEBP_NEAR_LOSSLESS == 1) @@ -1737,6 +1782,7 @@ static int EncodeStreamHook(void* input, void* data2) { #endif const int height = picture->height; const size_t byte_position = VP8LBitWriterNumBytes(bw); + int percent = 2; // for WebPProgressHook #if (WEBP_NEAR_LOSSLESS == 1) int use_near_lossless = 0; #endif @@ -1750,12 +1796,13 @@ static int EncodeStreamHook(void* input, void* data2) { if (!VP8LBitWriterInit(&bw_best, 0) || (num_crunch_configs > 1 && !VP8LBitWriterClone(bw, &bw_best))) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } for (idx = 0; idx < num_crunch_configs; ++idx) { const int entropy_idx = crunch_configs[idx].entropy_idx_; + int remaining_percent = 97 / num_crunch_configs, percent_range; enc->use_palette_ = (entropy_idx == kPalette) || (entropy_idx == kPaletteAndSpatial); enc->use_subtract_green_ = @@ -1779,11 +1826,10 @@ static int EncodeStreamHook(void* input, void* data2) { use_near_lossless = (config->near_lossless < 100) && !enc->use_palette_ && !enc->use_predict_; if (use_near_lossless) { - err = AllocateTransformBuffer(enc, width, height); - if (err != VP8_ENC_OK) goto Error; + if (!AllocateTransformBuffer(enc, width, height)) goto Error; if ((enc->argb_content_ != kEncoderNearLossless) && !VP8ApplyNearLossless(picture, config->near_lossless, enc->argb_)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } enc->argb_content_ = kEncoderNearLossless; @@ -1805,14 +1851,17 @@ static int EncodeStreamHook(void* input, void* data2) { enc->palette_); } else { assert(crunch_configs[idx].palette_sorting_type_ == kModifiedZeng); - err = PaletteSortModifiedZeng(enc->pic_, enc->palette_sorted_, - enc->palette_size_, enc->palette_); - if (err != VP8_ENC_OK) goto Error; + if (!PaletteSortModifiedZeng(enc->pic_, enc->palette_sorted_, + enc->palette_size_, enc->palette_)) { + goto Error; + } } - err = EncodePalette(bw, low_effort, enc); - if (err != VP8_ENC_OK) goto Error; - err = MapImageFromPalette(enc, use_delta_palette); - if (err != VP8_ENC_OK) goto Error; + percent_range = remaining_percent / 4; + if (!EncodePalette(bw, low_effort, enc, percent_range, &percent)) { + goto Error; + } + remaining_percent -= percent_range; + if (!MapImageFromPalette(enc, use_delta_palette)) goto Error; // If using a color cache, do not have it bigger than the number of // colors. if (use_cache && enc->palette_size_ < (1 << MAX_COLOR_CACHE_BITS)) { @@ -1823,8 +1872,7 @@ static int EncodeStreamHook(void* input, void* data2) { // In case image is not packed. if (enc->argb_content_ != kEncoderNearLossless && enc->argb_content_ != kEncoderPalette) { - err = MakeInputImageCopy(enc); - if (err != VP8_ENC_OK) goto Error; + if (!MakeInputImageCopy(enc)) goto Error; } // ----------------------------------------------------------------------- @@ -1835,15 +1883,22 @@ static int EncodeStreamHook(void* input, void* data2) { } if (enc->use_predict_) { - err = ApplyPredictFilter(enc, enc->current_width_, height, quality, - low_effort, enc->use_subtract_green_, bw); - if (err != VP8_ENC_OK) goto Error; + percent_range = remaining_percent / 3; + if (!ApplyPredictFilter(enc, enc->current_width_, height, quality, + low_effort, enc->use_subtract_green_, bw, + percent_range, &percent)) { + goto Error; + } + remaining_percent -= percent_range; } if (enc->use_cross_color_) { - err = ApplyCrossColorFilter(enc, enc->current_width_, height, quality, - low_effort, bw); - if (err != VP8_ENC_OK) goto Error; + percent_range = remaining_percent / 2; + if (!ApplyCrossColorFilter(enc, enc->current_width_, height, quality, + low_effort, bw, percent_range, &percent)) { + goto Error; + } + remaining_percent -= percent_range; } } @@ -1851,12 +1906,13 @@ static int EncodeStreamHook(void* input, void* data2) { // ------------------------------------------------------------------------- // Encode and write the transformed image. - err = EncodeImageInternal(bw, enc->argb_, &enc->hash_chain_, enc->refs_, - enc->current_width_, height, quality, low_effort, - use_cache, &crunch_configs[idx], - &enc->cache_bits_, enc->histo_bits_, - byte_position, &hdr_size, &data_size); - if (err != VP8_ENC_OK) goto Error; + if (!EncodeImageInternal( + bw, enc->argb_, &enc->hash_chain_, enc->refs_, enc->current_width_, + height, quality, low_effort, use_cache, &crunch_configs[idx], + &enc->cache_bits_, enc->histo_bits_, byte_position, &hdr_size, + &data_size, picture, remaining_percent, &percent)) { + goto Error; + } // If we are better than what we already have. if (VP8LBitWriterNumBytes(bw) < best_size) { @@ -1886,18 +1942,15 @@ static int EncodeStreamHook(void* input, void* data2) { } VP8LBitWriterSwap(&bw_best, bw); -Error: + Error: VP8LBitWriterWipeOut(&bw_best); - params->err_ = err; // The hook should return false in case of error. - return (err == VP8_ENC_OK); + return (params->picture_->error_code == VP8_ENC_OK); } -WebPEncodingError VP8LEncodeStream(const WebPConfig* const config, - const WebPPicture* const picture, - VP8LBitWriter* const bw_main, - int use_cache) { - WebPEncodingError err = VP8_ENC_OK; +int VP8LEncodeStream(const WebPConfig* const config, + const WebPPicture* const picture, + VP8LBitWriter* const bw_main, int use_cache) { VP8LEncoder* const enc_main = VP8LEncoderNew(config, picture); VP8LEncoder* enc_side = NULL; CrunchConfig crunch_configs[CRUNCH_CONFIGS_MAX]; @@ -1909,15 +1962,24 @@ WebPEncodingError VP8LEncodeStream(const WebPConfig* const config, // The main thread uses picture->stats, the side thread uses stats_side. WebPAuxStats stats_side; VP8LBitWriter bw_side; + WebPPicture picture_side; const WebPWorkerInterface* const worker_interface = WebPGetWorkerInterface(); int ok_main; + if (enc_main == NULL || !VP8LBitWriterInit(&bw_side, 0)) { + WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); + VP8LEncoderDelete(enc_main); + return 0; + } + + // Avoid "garbage value" error from Clang's static analysis tool. + WebPPictureInit(&picture_side); + // Analyze image (entropy, num_palettes etc) - if (enc_main == NULL || - !EncoderAnalyze(enc_main, crunch_configs, &num_crunch_configs_main, + if (!EncoderAnalyze(enc_main, crunch_configs, &num_crunch_configs_main, &red_and_blue_always_zero) || - !EncoderInit(enc_main) || !VP8LBitWriterInit(&bw_side, 0)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + !EncoderInit(enc_main)) { + WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } @@ -1946,25 +2008,32 @@ WebPEncodingError VP8LEncodeStream(const WebPConfig* const config, StreamEncodeContext* const param = (idx == 0) ? ¶ms_main : ¶ms_side; param->config_ = config; - param->picture_ = picture; param->use_cache_ = use_cache; param->red_and_blue_always_zero_ = red_and_blue_always_zero; if (idx == 0) { + param->picture_ = picture; param->stats_ = picture->stats; param->bw_ = bw_main; param->enc_ = enc_main; } else { + // Create a side picture (error_code is not thread-safe). + if (!WebPPictureView(picture, /*left=*/0, /*top=*/0, picture->width, + picture->height, &picture_side)) { + assert(0); + } + picture_side.progress_hook = NULL; // Progress hook is not thread-safe. + param->picture_ = &picture_side; // No need to free a view afterwards. param->stats_ = (picture->stats == NULL) ? NULL : &stats_side; // Create a side bit writer. if (!VP8LBitWriterClone(bw_main, &bw_side)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } param->bw_ = &bw_side; // Create a side encoder. - enc_side = VP8LEncoderNew(config, picture); + enc_side = VP8LEncoderNew(config, &picture_side); if (enc_side == NULL || !EncoderInit(enc_side)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } // Copy the values that were computed for the main encoder. @@ -1988,7 +2057,7 @@ WebPEncodingError VP8LEncodeStream(const WebPConfig* const config, // Start the second thread if needed. if (num_crunch_configs_side != 0) { if (!worker_interface->Reset(&worker_side)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } #if !defined(WEBP_DISABLE_STATS) @@ -1998,8 +2067,6 @@ WebPEncodingError VP8LEncodeStream(const WebPConfig* const config, memcpy(&stats_side, picture->stats, sizeof(stats_side)); } #endif - // This line is only useful to remove a Clang static analyzer warning. - params_side.err_ = VP8_ENC_OK; worker_interface->Launch(&worker_side); } // Execute the main thread. @@ -2011,7 +2078,10 @@ WebPEncodingError VP8LEncodeStream(const WebPConfig* const config, const int ok_side = worker_interface->Sync(&worker_side); worker_interface->End(&worker_side); if (!ok_main || !ok_side) { - err = ok_main ? params_side.err_ : params_main.err_; + if (picture->error_code == VP8_ENC_OK) { + assert(picture_side.error_code != VP8_ENC_OK); + WebPEncodingSetError(picture, picture_side.error_code); + } goto Error; } if (VP8LBitWriterNumBytes(&bw_side) < VP8LBitWriterNumBytes(bw_main)) { @@ -2022,18 +2092,13 @@ WebPEncodingError VP8LEncodeStream(const WebPConfig* const config, } #endif } - } else { - if (!ok_main) { - err = params_main.err_; - goto Error; - } } -Error: + Error: VP8LBitWriterWipeOut(&bw_side); VP8LEncoderDelete(enc_main); VP8LEncoderDelete(enc_side); - return err; + return (picture->error_code == VP8_ENC_OK); } #undef CRUNCH_CONFIGS_MAX @@ -2046,14 +2111,12 @@ int VP8LEncodeImage(const WebPConfig* const config, size_t coded_size; int percent = 0; int initial_size; - WebPEncodingError err = VP8_ENC_OK; VP8LBitWriter bw; if (picture == NULL) return 0; if (config == NULL || picture->argb == NULL) { - err = VP8_ENC_ERROR_NULL_PARAMETER; - WebPEncodingSetError(picture, err); + WebPEncodingSetError(picture, VP8_ENC_ERROR_NULL_PARAMETER); return 0; } @@ -2064,13 +2127,13 @@ int VP8LEncodeImage(const WebPConfig* const config, initial_size = (config->image_hint == WEBP_HINT_GRAPH) ? width * height : width * height * 2; if (!VP8LBitWriterInit(&bw, initial_size)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } if (!WebPReportProgress(picture, 1, &percent)) { UserAbort: - err = VP8_ENC_ERROR_USER_ABORT; + WebPEncodingSetError(picture, VP8_ENC_ERROR_USER_ABORT); goto Error; } // Reset stats (for pure lossless coding) @@ -2086,28 +2149,26 @@ int VP8LEncodeImage(const WebPConfig* const config, // Write image size. if (!WriteImageSize(picture, &bw)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } has_alpha = WebPPictureHasTransparency(picture); // Write the non-trivial Alpha flag and lossless version. if (!WriteRealAlphaAndVersion(&bw, has_alpha)) { - err = VP8_ENC_ERROR_OUT_OF_MEMORY; + WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); goto Error; } - if (!WebPReportProgress(picture, 5, &percent)) goto UserAbort; + if (!WebPReportProgress(picture, 2, &percent)) goto UserAbort; // Encode main image stream. - err = VP8LEncodeStream(config, picture, &bw, 1 /*use_cache*/); - if (err != VP8_ENC_OK) goto Error; + if (!VP8LEncodeStream(config, picture, &bw, 1 /*use_cache*/)) goto Error; - if (!WebPReportProgress(picture, 90, &percent)) goto UserAbort; + if (!WebPReportProgress(picture, 99, &percent)) goto UserAbort; // Finish the RIFF chunk. - err = WriteImage(picture, &bw, &coded_size); - if (err != VP8_ENC_OK) goto Error; + if (!WriteImage(picture, &bw, &coded_size)) goto Error; if (!WebPReportProgress(picture, 100, &percent)) goto UserAbort; @@ -2126,13 +2187,11 @@ int VP8LEncodeImage(const WebPConfig* const config, } Error: - if (bw.error_) err = VP8_ENC_ERROR_OUT_OF_MEMORY; - VP8LBitWriterWipeOut(&bw); - if (err != VP8_ENC_OK) { - WebPEncodingSetError(picture, err); - return 0; + if (bw.error_) { + WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); } - return 1; + VP8LBitWriterWipeOut(&bw); + return (picture->error_code == VP8_ENC_OK); } //------------------------------------------------------------------------------ |