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chunk handling and transform rewrite

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This implements a new chunk parse implementation that can be shared, it
is currently shared by the progressive reader and the sequential one
(not, yet, the writer).

The patch also implements shared transform handling that is used
throughout.

Signed-off-by: John Bowler <jbowler@acm.org>
This commit is contained in:
John Bowler
2015-09-14 20:42:40 -07:00
parent c5ead5d2cd
commit 3184947a25
26 changed files with 16933 additions and 13338 deletions
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21
scripts/pnglibconf.h.prebuilt
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@@ -18,8 +18,6 @@
/* options */
#define PNG_16BIT_SUPPORTED
#define PNG_ALIGNED_MEMORY_SUPPORTED
/*#undef PNG_ARM_NEON_API_SUPPORTED*/
/*#undef PNG_ARM_NEON_CHECK_SUPPORTED*/
#define PNG_BENIGN_ERRORS_SUPPORTED
#define PNG_BENIGN_READ_ERRORS_SUPPORTED
/*#undef PNG_BENIGN_WRITE_ERRORS_SUPPORTED*/
@@ -43,7 +41,9 @@
#define PNG_INFO_IMAGE_SUPPORTED
#define PNG_IO_STATE_SUPPORTED
#define PNG_MNG_FEATURES_SUPPORTED
#define PNG_POINTER_INDEXING_SUPPORTED
#define PNG_MNG_READ_FEATURES_SUPPORTED
#define PNG_MNG_WRITE_FEATURES_SUPPORTED
#define PNG_PALETTE_MAX_SUPPORTED
#define PNG_PROGRESSIVE_READ_SUPPORTED
#define PNG_READ_16BIT_SUPPORTED
#define PNG_READ_ALPHA_MODE_SUPPORTED
@@ -53,12 +53,14 @@
#define PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
#define PNG_READ_COMPOSITE_NODIV_SUPPORTED
#define PNG_READ_COMPRESSED_TEXT_SUPPORTED
#define PNG_READ_DEINTERLACE_SUPPORTED
#define PNG_READ_EXPAND_16_SUPPORTED
#define PNG_READ_EXPAND_SUPPORTED
#define PNG_READ_FILLER_SUPPORTED
#define PNG_READ_GAMMA_SUPPORTED
#define PNG_READ_GET_PALETTE_MAX_SUPPORTED
#define PNG_READ_GRAY_TO_RGB_SUPPORTED
#define PNG_READ_IMAGE_SUPPORTED
#define PNG_READ_INTERLACING_SUPPORTED
#define PNG_READ_INT_FUNCTIONS_SUPPORTED
#define PNG_READ_INVERT_ALPHA_SUPPORTED
@@ -66,6 +68,7 @@
#define PNG_READ_OPT_PLTE_SUPPORTED
#define PNG_READ_PACKSWAP_SUPPORTED
#define PNG_READ_PACK_SUPPORTED
#define PNG_READ_PNG_SUPPORTED
#define PNG_READ_QUANTIZE_SUPPORTED
#define PNG_READ_RGB_TO_GRAY_SUPPORTED
#define PNG_READ_SCALE_16_TO_8_SUPPORTED
@@ -97,10 +100,10 @@
#define PNG_READ_tIME_SUPPORTED
#define PNG_READ_tRNS_SUPPORTED
#define PNG_READ_zTXt_SUPPORTED
#define PNG_SAVE_INT_32_SUPPORTED
#define PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_SEQUENTIAL_READ_SUPPORTED
#define PNG_SETJMP_SUPPORTED
#define PNG_SETTING_SUPPORTED
#define PNG_SET_OPTION_SUPPORTED
#define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_SET_USER_LIMITS_SUPPORTED
@@ -114,6 +117,8 @@
#define PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_TEXT_SUPPORTED
#define PNG_TIME_RFC1123_SUPPORTED
#define PNG_TRANFORM_MECH_SUPPORTED
#define PNG_TRANSFORM_MECH_SUPPORTED
#define PNG_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_USER_CHUNKS_SUPPORTED
#define PNG_USER_LIMITS_SUPPORTED
@@ -139,6 +144,7 @@
#define PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
#define PNG_WRITE_PACKSWAP_SUPPORTED
#define PNG_WRITE_PACK_SUPPORTED
#define PNG_WRITE_PNG_SUPPORTED
#define PNG_WRITE_SHIFT_SUPPORTED
#define PNG_WRITE_SUPPORTED
#define PNG_WRITE_SWAP_ALPHA_SUPPORTED
@@ -186,9 +192,9 @@
/* settings */
#define PNG_ABORT { (abort()); }
#define PNG_API_RULE 0
#define PNG_COST_SHIFT 3
#define PNG_DEFAULT_GAMMA_ACCURACY 665
#define PNG_DEFAULT_READ_MACROS 1
#define PNG_GAMMA_THRESHOLD_FIXED 5000
#define PNG_GAMMA_THRESHOLD_FIXED 153
#define PNG_IDAT_READ_SIZE PNG_ZBUF_SIZE
#define PNG_INFLATE_BUF_SIZE 1024
#define PNG_MAX_GAMMA_8 11
@@ -201,10 +207,9 @@
#define PNG_USER_CHUNK_MALLOC_MAX 8000000
#define PNG_USER_HEIGHT_MAX 1000000
#define PNG_USER_WIDTH_MAX 1000000
#define PNG_WEIGHT_SHIFT 8
#define PNG_ZBUF_SIZE 8192
#define PNG_ZLIB_HEADER <zlib.h>
#define PNG_ZLIB_VERNUM 0 /* unknown */
#define PNG_ZLIB_VERNUM 0
#define PNG_Z_DEFAULT_COMPRESSION (-1)
#define PNG_Z_DEFAULT_NOFILTER_STRATEGY 0
#define PNG_Z_DEFAULT_STRATEGY 1