From 4215dd1533c56e1a89ae6f1d6ea68677fac27fda Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Mon, 9 Mar 2009 11:52:12 -0700 Subject: auto import from //branches/cupcake/...@137197 --- pngwrite.c | 137 ++++++++++++++++++++++++++++++++++--------------------------- 1 file changed, 76 insertions(+), 61 deletions(-) (limited to 'pngwrite.c') diff --git a/pngwrite.c b/pngwrite.c index 7d02ad7..8d95788 100644 --- a/pngwrite.c +++ b/pngwrite.c @@ -1,7 +1,7 @@ /* pngwrite.c - general routines to write a PNG file * - * Last changed in libpng 1.2.27 [April 29, 2008] + * Last changed in libpng 1.2.34 [December 18, 2008] * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2008 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) @@ -25,16 +25,16 @@ void PNGAPI png_write_info_before_PLTE(png_structp png_ptr, png_infop info_ptr) { - png_debug(1, "in png_write_info_before_PLTE\n"); + png_debug(1, "in png_write_info_before_PLTE"); if (png_ptr == NULL || info_ptr == NULL) return; if (!(png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE)) { png_write_sig(png_ptr); /* write PNG signature */ #if defined(PNG_MNG_FEATURES_SUPPORTED) - if((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)&&(png_ptr->mng_features_permitted)) + if ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)&&(png_ptr->mng_features_permitted)) { - png_warning(png_ptr,"MNG features are not allowed in a PNG datastream"); + png_warning(png_ptr, "MNG features are not allowed in a PNG datastream"); png_ptr->mng_features_permitted=0; } #endif @@ -99,7 +99,7 @@ png_write_info_before_PLTE(png_structp png_ptr, png_infop info_ptr) { png_unknown_chunk *up; - png_debug(5, "writing extra chunks\n"); + png_debug(5, "writing extra chunks"); for (up = info_ptr->unknown_chunks; up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num; @@ -130,7 +130,7 @@ png_write_info(png_structp png_ptr, png_infop info_ptr) int i; #endif - png_debug(1, "in png_write_info\n"); + png_debug(1, "in png_write_info"); if (png_ptr == NULL || info_ptr == NULL) return; @@ -215,7 +215,7 @@ png_write_info(png_structp png_ptr, png_infop info_ptr) /* Check to see if we need to write text chunks */ for (i = 0; i < info_ptr->num_text; i++) { - png_debug2(2, "Writing header text chunk %d, type %d\n", i, + png_debug2(2, "Writing header text chunk %d, type %d", i, info_ptr->text[i].compression); /* an internationalized chunk? */ if (info_ptr->text[i].compression > 0) @@ -268,7 +268,7 @@ png_write_info(png_structp png_ptr, png_infop info_ptr) { png_unknown_chunk *up; - png_debug(5, "writing extra chunks\n"); + png_debug(5, "writing extra chunks"); for (up = info_ptr->unknown_chunks; up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num; @@ -296,7 +296,7 @@ png_write_info(png_structp png_ptr, png_infop info_ptr) void PNGAPI png_write_end(png_structp png_ptr, png_infop info_ptr) { - png_debug(1, "in png_write_end\n"); + png_debug(1, "in png_write_end"); if (png_ptr == NULL) return; if (!(png_ptr->mode & PNG_HAVE_IDAT)) @@ -318,7 +318,7 @@ png_write_end(png_structp png_ptr, png_infop info_ptr) /* loop through comment chunks */ for (i = 0; i < info_ptr->num_text; i++) { - png_debug2(2, "Writing trailer text chunk %d, type %d\n", i, + png_debug2(2, "Writing trailer text chunk %d, type %d", i, info_ptr->text[i].compression); /* an internationalized chunk? */ if (info_ptr->text[i].compression > 0) @@ -370,7 +370,7 @@ png_write_end(png_structp png_ptr, png_infop info_ptr) { png_unknown_chunk *up; - png_debug(5, "writing extra chunks\n"); + png_debug(5, "writing extra chunks"); for (up = info_ptr->unknown_chunks; up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num; @@ -393,6 +393,18 @@ png_write_end(png_structp png_ptr, png_infop info_ptr) /* write end of PNG file */ png_write_IEND(png_ptr); + /* This flush, added in libpng-1.0.8, removed from libpng-1.0.9beta03, + * and restored again in libpng-1.2.30, may cause some applications that + * do not set png_ptr->output_flush_fn to crash. If your application + * experiences a problem, please try building libpng with + * PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED defined, and report the event to + * png-mng-implement at lists.sf.net . This kludge will be removed + * from libpng-1.4.0. + */ +#if defined(PNG_WRITE_FLUSH_SUPPORTED) && \ + defined(PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED) + png_flush(png_ptr); +#endif } #if defined(PNG_WRITE_tIME_SUPPORTED) @@ -401,7 +413,7 @@ png_write_end(png_structp png_ptr, png_infop info_ptr) void PNGAPI png_convert_from_struct_tm(png_timep ptime, struct tm FAR * ttime) { - png_debug(1, "in png_convert_from_struct_tm\n"); + png_debug(1, "in png_convert_from_struct_tm"); ptime->year = (png_uint_16)(1900 + ttime->tm_year); ptime->month = (png_byte)(ttime->tm_mon + 1); ptime->day = (png_byte)ttime->tm_mday; @@ -415,7 +427,7 @@ png_convert_from_time_t(png_timep ptime, time_t ttime) { struct tm *tbuf; - png_debug(1, "in png_convert_from_time_t\n"); + png_debug(1, "in png_convert_from_time_t"); tbuf = gmtime(&ttime); png_convert_from_struct_tm(ptime, tbuf); } @@ -439,14 +451,17 @@ png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn) { #endif /* PNG_USER_MEM_SUPPORTED */ - png_structp png_ptr; +#ifdef PNG_SETJMP_SUPPORTED + volatile +#endif + png_structp png_ptr; #ifdef PNG_SETJMP_SUPPORTED #ifdef USE_FAR_KEYWORD jmp_buf jmpbuf; #endif #endif int i; - png_debug(1, "in png_create_write_struct\n"); + png_debug(1, "in png_create_write_struct"); #ifdef PNG_USER_MEM_SUPPORTED png_ptr = (png_structp)png_create_struct_2(PNG_STRUCT_PNG, (png_malloc_ptr)malloc_fn, (png_voidp)mem_ptr); @@ -470,12 +485,12 @@ png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr, #endif { png_free(png_ptr, png_ptr->zbuf); - png_ptr->zbuf=NULL; + png_ptr->zbuf=NULL; png_destroy_struct(png_ptr); return (NULL); } #ifdef USE_FAR_KEYWORD - png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf)); + png_memcpy(png_ptr->jmpbuf, jmpbuf, png_sizeof(jmp_buf)); #endif #endif @@ -484,12 +499,12 @@ png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr, #endif /* PNG_USER_MEM_SUPPORTED */ png_set_error_fn(png_ptr, error_ptr, error_fn, warn_fn); - if(user_png_ver) + if (user_png_ver) { i=0; do { - if(user_png_ver[i] != png_libpng_ver[i]) + if (user_png_ver[i] != png_libpng_ver[i]) png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; } while (png_libpng_ver[i++]); } @@ -547,7 +562,7 @@ png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr, #ifdef USE_FAR_KEYWORD if (setjmp(jmpbuf)) PNG_ABORT(); - png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf)); + png_memcpy(png_ptr->jmpbuf, jmpbuf, png_sizeof(jmp_buf)); #else if (setjmp(png_ptr->jmpbuf)) PNG_ABORT(); @@ -572,9 +587,9 @@ png_write_init_2(png_structp png_ptr, png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t png_info_size) { /* We only come here via pre-1.0.12-compiled applications */ - if(png_ptr == NULL) return; + if (png_ptr == NULL) return; #if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - if(png_sizeof(png_struct) > png_struct_size || + if (png_sizeof(png_struct) > png_struct_size || png_sizeof(png_info) > png_info_size) { char msg[80]; @@ -592,7 +607,7 @@ png_write_init_2(png_structp png_ptr, png_const_charp user_png_ver, png_warning(png_ptr, msg); } #endif - if(png_sizeof(png_struct) > png_struct_size) + if (png_sizeof(png_struct) > png_struct_size) { png_ptr->error_fn=NULL; #ifdef PNG_ERROR_NUMBERS_SUPPORTED @@ -601,7 +616,7 @@ png_write_init_2(png_structp png_ptr, png_const_charp user_png_ver, png_error(png_ptr, "The png struct allocated by the application for writing is too small."); } - if(png_sizeof(png_info) > png_info_size) + if (png_sizeof(png_info) > png_info_size) { png_ptr->error_fn=NULL; #ifdef PNG_ERROR_NUMBERS_SUPPORTED @@ -638,17 +653,17 @@ png_write_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver, #else png_ptr->warning_fn=NULL; png_warning(png_ptr, - "Application uses deprecated png_write_init() and should be recompiled."); + "Application uses deprecated png_write_init() and should be recompiled."); break; #endif } } while (png_libpng_ver[i++]); - png_debug(1, "in png_write_init_3\n"); + png_debug(1, "in png_write_init_3"); #ifdef PNG_SETJMP_SUPPORTED /* save jump buffer and error functions */ - png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf)); + png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof(jmp_buf)); #endif if (png_sizeof(png_struct) > png_struct_size) @@ -659,7 +674,7 @@ png_write_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver, } /* reset all variables to 0 */ - png_memset(png_ptr, 0, png_sizeof (png_struct)); + png_memset(png_ptr, 0, png_sizeof(png_struct)); /* added at libpng-1.2.6 */ #ifdef PNG_SET_USER_LIMITS_SUPPORTED @@ -669,7 +684,7 @@ png_write_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver, #ifdef PNG_SETJMP_SUPPORTED /* restore jump buffer */ - png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf)); + png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof(jmp_buf)); #endif png_set_write_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL, @@ -698,7 +713,7 @@ png_write_rows(png_structp png_ptr, png_bytepp row, png_uint_32 i; /* row counter */ png_bytepp rp; /* row pointer */ - png_debug(1, "in png_write_rows\n"); + png_debug(1, "in png_write_rows"); if (png_ptr == NULL) return; @@ -723,7 +738,7 @@ png_write_image(png_structp png_ptr, png_bytepp image) if (png_ptr == NULL) return; - png_debug(1, "in png_write_image\n"); + png_debug(1, "in png_write_image"); #if defined(PNG_WRITE_INTERLACING_SUPPORTED) /* intialize interlace handling. If image is not interlaced, this will set pass to 1 */ @@ -748,7 +763,7 @@ png_write_row(png_structp png_ptr, png_bytep row) { if (png_ptr == NULL) return; - png_debug2(1, "in png_write_row (row %ld, pass %d)\n", + png_debug2(1, "in png_write_row (row %ld, pass %d)", png_ptr->row_number, png_ptr->pass); /* initialize transformations and other stuff if first time */ @@ -862,12 +877,12 @@ png_write_row(png_structp png_ptr, png_bytep row) png_ptr->row_info.rowbytes = PNG_ROWBYTES(png_ptr->row_info.pixel_depth, png_ptr->row_info.width); - png_debug1(3, "row_info->color_type = %d\n", png_ptr->row_info.color_type); - png_debug1(3, "row_info->width = %lu\n", png_ptr->row_info.width); - png_debug1(3, "row_info->channels = %d\n", png_ptr->row_info.channels); - png_debug1(3, "row_info->bit_depth = %d\n", png_ptr->row_info.bit_depth); - png_debug1(3, "row_info->pixel_depth = %d\n", png_ptr->row_info.pixel_depth); - png_debug1(3, "row_info->rowbytes = %lu\n", png_ptr->row_info.rowbytes); + png_debug1(3, "row_info->color_type = %d", png_ptr->row_info.color_type); + png_debug1(3, "row_info->width = %lu", png_ptr->row_info.width); + png_debug1(3, "row_info->channels = %d", png_ptr->row_info.channels); + png_debug1(3, "row_info->bit_depth = %d", png_ptr->row_info.bit_depth); + png_debug1(3, "row_info->pixel_depth = %d", png_ptr->row_info.pixel_depth); + png_debug1(3, "row_info->rowbytes = %lu", png_ptr->row_info.rowbytes); /* Copy user's row into buffer, leaving room for filter byte. */ png_memcpy_check(png_ptr, png_ptr->row_buf + 1, row, @@ -903,7 +918,7 @@ png_write_row(png_structp png_ptr, png_bytep row) * 4. The filter_method is 64 and * 5. The color_type is RGB or RGBA */ - if((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && + if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && (png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING)) { /* Intrapixel differencing */ @@ -923,7 +938,7 @@ png_write_row(png_structp png_ptr, png_bytep row) void PNGAPI png_set_flush(png_structp png_ptr, int nrows) { - png_debug(1, "in png_set_flush\n"); + png_debug(1, "in png_set_flush"); if (png_ptr == NULL) return; png_ptr->flush_dist = (nrows < 0 ? 0 : nrows); @@ -935,7 +950,7 @@ png_write_flush(png_structp png_ptr) { int wrote_IDAT; - png_debug(1, "in png_write_flush\n"); + png_debug(1, "in png_write_flush"); if (png_ptr == NULL) return; /* We have already written out all of the data */ @@ -995,7 +1010,7 @@ png_destroy_write_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr) png_voidp mem_ptr = NULL; #endif - png_debug(1, "in png_destroy_write_struct\n"); + png_debug(1, "in png_destroy_write_struct"); if (png_ptr_ptr != NULL) { png_ptr = *png_ptr_ptr; @@ -1027,7 +1042,7 @@ png_destroy_write_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr) { png_free(png_ptr, png_ptr->chunk_list); png_ptr->chunk_list=NULL; - png_ptr->num_chunk_list=0; + png_ptr->num_chunk_list = 0; } #endif } @@ -1069,14 +1084,14 @@ png_write_destroy(png_structp png_ptr) png_free_ptr free_fn; #endif - png_debug(1, "in png_write_destroy\n"); + png_debug(1, "in png_write_destroy"); /* free any memory zlib uses */ deflateEnd(&png_ptr->zstream); /* free our memory. png_free checks NULL for us. */ png_free(png_ptr, png_ptr->zbuf); png_free(png_ptr, png_ptr->row_buf); -#ifndef PNG_NO_WRITE_FILTERING +#ifndef PNG_NO_WRITE_FILTER png_free(png_ptr, png_ptr->prev_row); png_free(png_ptr, png_ptr->sub_row); png_free(png_ptr, png_ptr->up_row); @@ -1098,7 +1113,7 @@ png_write_destroy(png_structp png_ptr) #ifdef PNG_SETJMP_SUPPORTED /* reset structure */ - png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf)); + png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof(jmp_buf)); #endif error_fn = png_ptr->error_fn; @@ -1108,7 +1123,7 @@ png_write_destroy(png_structp png_ptr) free_fn = png_ptr->free_fn; #endif - png_memset(png_ptr, 0, png_sizeof (png_struct)); + png_memset(png_ptr, 0, png_sizeof(png_struct)); png_ptr->error_fn = error_fn; png_ptr->warning_fn = warning_fn; @@ -1118,7 +1133,7 @@ png_write_destroy(png_structp png_ptr) #endif #ifdef PNG_SETJMP_SUPPORTED - png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf)); + png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof(jmp_buf)); #endif } @@ -1126,11 +1141,11 @@ png_write_destroy(png_structp png_ptr) void PNGAPI png_set_filter(png_structp png_ptr, int method, int filters) { - png_debug(1, "in png_set_filter\n"); + png_debug(1, "in png_set_filter"); if (png_ptr == NULL) return; #if defined(PNG_MNG_FEATURES_SUPPORTED) - if((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && + if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && (method == PNG_INTRAPIXEL_DIFFERENCING)) method = PNG_FILTER_TYPE_BASE; #endif @@ -1249,7 +1264,7 @@ png_set_filter_heuristics(png_structp png_ptr, int heuristic_method, { int i; - png_debug(1, "in png_set_filter_heuristics\n"); + png_debug(1, "in png_set_filter_heuristics"); if (png_ptr == NULL) return; if (heuristic_method >= PNG_FILTER_HEURISTIC_LAST) @@ -1363,7 +1378,7 @@ png_set_filter_heuristics(png_structp png_ptr, int heuristic_method, void PNGAPI png_set_compression_level(png_structp png_ptr, int level) { - png_debug(1, "in png_set_compression_level\n"); + png_debug(1, "in png_set_compression_level"); if (png_ptr == NULL) return; png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_LEVEL; @@ -1373,7 +1388,7 @@ png_set_compression_level(png_structp png_ptr, int level) void PNGAPI png_set_compression_mem_level(png_structp png_ptr, int mem_level) { - png_debug(1, "in png_set_compression_mem_level\n"); + png_debug(1, "in png_set_compression_mem_level"); if (png_ptr == NULL) return; png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL; @@ -1383,7 +1398,7 @@ png_set_compression_mem_level(png_structp png_ptr, int mem_level) void PNGAPI png_set_compression_strategy(png_structp png_ptr, int strategy) { - png_debug(1, "in png_set_compression_strategy\n"); + png_debug(1, "in png_set_compression_strategy"); if (png_ptr == NULL) return; png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_STRATEGY; @@ -1414,7 +1429,7 @@ png_set_compression_window_bits(png_structp png_ptr, int window_bits) void PNGAPI png_set_compression_method(png_structp png_ptr, int method) { - png_debug(1, "in png_set_compression_method\n"); + png_debug(1, "in png_set_compression_method"); if (png_ptr == NULL) return; if (method != 8) @@ -1436,7 +1451,7 @@ void PNGAPI png_set_write_user_transform_fn(png_structp png_ptr, png_user_transform_ptr write_user_transform_fn) { - png_debug(1, "in png_set_write_user_transform_fn\n"); + png_debug(1, "in png_set_write_user_transform_fn"); if (png_ptr == NULL) return; png_ptr->transformations |= PNG_USER_TRANSFORM; @@ -1491,11 +1506,11 @@ png_write_png(png_structp png_ptr, png_infop info_ptr, #endif #if defined(PNG_WRITE_FILLER_SUPPORTED) - /* Get rid of filler (OR ALPHA) bytes, pack XRGB/RGBX/ARGB/RGBA into - * RGB (4 channels -> 3 channels). The second parameter is not used. - */ - if (transforms & PNG_TRANSFORM_STRIP_FILLER) - png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE); + /* Pack XRGB/RGBX/ARGB/RGBA into * RGB (4 channels -> 3 channels) */ + if (transforms & PNG_TRANSFORM_STRIP_FILLER_AFTER) + png_set_filler(png_ptr, 0, PNG_FILLER_AFTER); + else if (transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE) + png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE); #endif #if defined(PNG_WRITE_BGR_SUPPORTED) -- cgit v1.2.3