Lines Matching refs:png_ptr
51 png_write_sig(png_structrp png_ptr) in png_write_sig() argument
57 png_ptr->io_state = PNG_IO_WRITING | PNG_IO_SIGNATURE; in png_write_sig()
61 png_write_data(png_ptr, &png_signature[png_ptr->sig_bytes], in png_write_sig()
62 (png_size_t)(8 - png_ptr->sig_bytes)); in png_write_sig()
64 if (png_ptr->sig_bytes < 3) in png_write_sig()
65 png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE; in png_write_sig()
73 png_write_chunk_header(png_structrp png_ptr, png_uint_32 chunk_name, in png_write_chunk_header() argument
83 if (png_ptr == NULL) in png_write_chunk_header()
90 png_ptr->io_state = PNG_IO_WRITING | PNG_IO_CHUNK_HDR; in png_write_chunk_header()
96 png_write_data(png_ptr, buf, 8); in png_write_chunk_header()
99 png_ptr->chunk_name = chunk_name; in png_write_chunk_header()
102 png_reset_crc(png_ptr); in png_write_chunk_header()
104 png_calculate_crc(png_ptr, buf + 4, 4); in png_write_chunk_header()
110 png_ptr->io_state = PNG_IO_WRITING | PNG_IO_CHUNK_DATA; in png_write_chunk_header()
115 png_write_chunk_start(png_structrp png_ptr, png_const_bytep chunk_string, in png_write_chunk_start() argument
118 png_write_chunk_header(png_ptr, PNG_CHUNK_FROM_STRING(chunk_string), length); in png_write_chunk_start()
127 png_write_chunk_data(png_structrp png_ptr, png_const_bytep data, in png_write_chunk_data() argument
131 if (png_ptr == NULL) in png_write_chunk_data()
136 png_write_data(png_ptr, data, length); in png_write_chunk_data()
141 png_calculate_crc(png_ptr, data, length); in png_write_chunk_data()
147 png_write_chunk_end(png_structrp png_ptr) in png_write_chunk_end() argument
151 if (png_ptr == NULL) return; in png_write_chunk_end()
157 png_ptr->io_state = PNG_IO_WRITING | PNG_IO_CHUNK_CRC; in png_write_chunk_end()
161 png_save_uint_32(buf, png_ptr->crc); in png_write_chunk_end()
163 png_write_data(png_ptr, buf, (png_size_t)4); in png_write_chunk_end()
176 png_write_complete_chunk(png_structrp png_ptr, png_uint_32 chunk_name, in png_write_complete_chunk() argument
179 if (png_ptr == NULL) in png_write_complete_chunk()
184 png_error(png_ptr, "length exceeds PNG maximum"); in png_write_complete_chunk()
186 png_write_chunk_header(png_ptr, chunk_name, (png_uint_32)length); in png_write_complete_chunk()
187 png_write_chunk_data(png_ptr, data, length); in png_write_complete_chunk()
188 png_write_chunk_end(png_ptr); in png_write_complete_chunk()
193 png_write_chunk(png_structrp png_ptr, png_const_bytep chunk_string, in png_write_chunk() argument
196 png_write_complete_chunk(png_ptr, PNG_CHUNK_FROM_STRING(chunk_string), data, in png_write_chunk()
205 png_image_size(png_structrp png_ptr) in png_image_size() argument
210 png_uint_32 h = png_ptr->height; in png_image_size()
212 if (png_ptr->rowbytes < 32768 && h < 32768) in png_image_size()
214 if (png_ptr->interlaced != 0) in png_image_size()
219 png_uint_32 w = png_ptr->width; in png_image_size()
220 unsigned int pd = png_ptr->pixel_depth; in png_image_size()
236 return (png_ptr->rowbytes+1) * h; in png_image_size()
293 png_deflate_claim(png_structrp png_ptr, png_uint_32 owner, in png_deflate_claim() argument
296 if (png_ptr->zowner != 0) in png_deflate_claim()
304 PNG_STRING_FROM_CHUNK(msg+6, png_ptr->zowner); in png_deflate_claim()
312 png_warning(png_ptr, msg); in png_deflate_claim()
315 if (png_ptr->zowner == png_IDAT) /* don't steal from IDAT */ in png_deflate_claim()
317 png_ptr->zstream.msg = PNGZ_MSG_CAST("in use by IDAT"); in png_deflate_claim()
321 png_ptr->zowner = 0; in png_deflate_claim()
323 png_error(png_ptr, msg); in png_deflate_claim()
328 int level = png_ptr->zlib_level; in png_deflate_claim()
329 int method = png_ptr->zlib_method; in png_deflate_claim()
330 int windowBits = png_ptr->zlib_window_bits; in png_deflate_claim()
331 int memLevel = png_ptr->zlib_mem_level; in png_deflate_claim()
337 if ((png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_STRATEGY) != 0) in png_deflate_claim()
338 strategy = png_ptr->zlib_strategy; in png_deflate_claim()
340 else if (png_ptr->do_filter != PNG_FILTER_NONE) in png_deflate_claim()
350 level = png_ptr->zlib_text_level; in png_deflate_claim()
351 method = png_ptr->zlib_text_method; in png_deflate_claim()
352 windowBits = png_ptr->zlib_text_window_bits; in png_deflate_claim()
353 memLevel = png_ptr->zlib_text_mem_level; in png_deflate_claim()
354 strategy = png_ptr->zlib_text_strategy; in png_deflate_claim()
389 if ((png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) != 0 && in png_deflate_claim()
390 (png_ptr->zlib_set_level != level || in png_deflate_claim()
391 png_ptr->zlib_set_method != method || in png_deflate_claim()
392 png_ptr->zlib_set_window_bits != windowBits || in png_deflate_claim()
393 png_ptr->zlib_set_mem_level != memLevel || in png_deflate_claim()
394 png_ptr->zlib_set_strategy != strategy)) in png_deflate_claim()
396 if (deflateEnd(&png_ptr->zstream) != Z_OK) in png_deflate_claim()
397 png_warning(png_ptr, "deflateEnd failed (ignored)"); in png_deflate_claim()
399 png_ptr->flags &= ~PNG_FLAG_ZSTREAM_INITIALIZED; in png_deflate_claim()
405 png_ptr->zstream.next_in = NULL; in png_deflate_claim()
406 png_ptr->zstream.avail_in = 0; in png_deflate_claim()
407 png_ptr->zstream.next_out = NULL; in png_deflate_claim()
408 png_ptr->zstream.avail_out = 0; in png_deflate_claim()
413 if ((png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) != 0) in png_deflate_claim()
414 ret = deflateReset(&png_ptr->zstream); in png_deflate_claim()
418 ret = deflateInit2(&png_ptr->zstream, level, method, windowBits, in png_deflate_claim()
422 png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED; in png_deflate_claim()
429 png_ptr->zowner = owner; in png_deflate_claim()
432 png_zstream_error(png_ptr, ret); in png_deflate_claim()
440 png_free_buffer_list(png_structrp png_ptr, png_compression_bufferp *listp) in png_free_buffer_list() argument
452 png_free(png_ptr, list); in png_free_buffer_list()
489 png_text_compress(png_structrp png_ptr, png_uint_32 chunk_name, in png_text_compress() argument
504 ret = png_deflate_claim(png_ptr, chunk_name, comp->input_len); in png_text_compress()
516 png_compression_bufferp *end = &png_ptr->zbuffer_list; in png_text_compress()
521 png_ptr->zstream.next_in = PNGZ_INPUT_CAST(comp->input); in png_text_compress()
522 png_ptr->zstream.avail_in = 0; /* Set below */ in png_text_compress()
523 png_ptr->zstream.next_out = comp->output; in png_text_compress()
524 png_ptr->zstream.avail_out = (sizeof comp->output); in png_text_compress()
526 output_len = png_ptr->zstream.avail_out; in png_text_compress()
537 png_ptr->zstream.avail_in = avail_in; in png_text_compress()
539 if (png_ptr->zstream.avail_out == 0) in png_text_compress()
559 (png_ptr, PNG_COMPRESSION_BUFFER_SIZE(png_ptr))); in png_text_compress()
572 png_ptr->zstream.next_out = next->output; in png_text_compress()
573 png_ptr->zstream.avail_out = png_ptr->zbuffer_size; in png_text_compress()
574 output_len += png_ptr->zstream.avail_out; in png_text_compress()
581 ret = deflate(&png_ptr->zstream, in png_text_compress()
587 input_len += png_ptr->zstream.avail_in; in png_text_compress()
588 png_ptr->zstream.avail_in = 0; /* safety */ in png_text_compress()
595 output_len -= png_ptr->zstream.avail_out; in png_text_compress()
596 png_ptr->zstream.avail_out = 0; /* safety */ in png_text_compress()
605 png_ptr->zstream.msg = PNGZ_MSG_CAST("compressed data too long"); in png_text_compress()
610 png_zstream_error(png_ptr, ret); in png_text_compress()
613 png_ptr->zowner = 0; in png_text_compress()
638 png_write_compressed_data_out(png_structrp png_ptr, compression_state *comp) in png_write_compressed_data_out() argument
643 png_compression_buffer *next = png_ptr->zbuffer_list; in png_write_compressed_data_out()
650 png_write_chunk_data(png_ptr, output, avail); in png_write_compressed_data_out()
657 avail = png_ptr->zbuffer_size; in png_write_compressed_data_out()
664 png_error(png_ptr, "error writing ancillary chunked compressed data"); in png_write_compressed_data_out()
673 png_write_IHDR(png_structrp png_ptr, png_uint_32 width, png_uint_32 height, in png_write_IHDR() argument
694 png_ptr->channels = 1; break; in png_write_IHDR()
697 png_error(png_ptr, in png_write_IHDR()
708 png_error(png_ptr, "Invalid bit depth for RGB image"); in png_write_IHDR()
710 png_ptr->channels = 3; in png_write_IHDR()
720 png_ptr->channels = 1; in png_write_IHDR()
724 png_error(png_ptr, "Invalid bit depth for paletted image"); in png_write_IHDR()
730 png_error(png_ptr, "Invalid bit depth for grayscale+alpha image"); in png_write_IHDR()
732 png_ptr->channels = 2; in png_write_IHDR()
741 png_error(png_ptr, "Invalid bit depth for RGBA image"); in png_write_IHDR()
743 png_ptr->channels = 4; in png_write_IHDR()
747 png_error(png_ptr, "Invalid image color type specified"); in png_write_IHDR()
752 png_warning(png_ptr, "Invalid compression type specified"); in png_write_IHDR()
767 !((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) != 0 && in png_write_IHDR()
768 ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) == 0) && in png_write_IHDR()
775 png_warning(png_ptr, "Invalid filter type specified"); in png_write_IHDR()
783 png_warning(png_ptr, "Invalid interlace type specified"); in png_write_IHDR()
791 png_ptr->bit_depth = (png_byte)bit_depth; in png_write_IHDR()
792 png_ptr->color_type = (png_byte)color_type; in png_write_IHDR()
793 png_ptr->interlaced = (png_byte)interlace_type; in png_write_IHDR()
795 png_ptr->filter_type = (png_byte)filter_type; in png_write_IHDR()
797 png_ptr->compression_type = (png_byte)compression_type; in png_write_IHDR()
798 png_ptr->width = width; in png_write_IHDR()
799 png_ptr->height = height; in png_write_IHDR()
801 png_ptr->pixel_depth = (png_byte)(bit_depth * png_ptr->channels); in png_write_IHDR()
802 png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, width); in png_write_IHDR()
804 png_ptr->usr_width = png_ptr->width; in png_write_IHDR()
805 png_ptr->usr_bit_depth = png_ptr->bit_depth; in png_write_IHDR()
806 png_ptr->usr_channels = png_ptr->channels; in png_write_IHDR()
818 png_write_complete_chunk(png_ptr, png_IHDR, buf, (png_size_t)13); in png_write_IHDR()
820 if ((png_ptr->do_filter) == PNG_NO_FILTERS) in png_write_IHDR()
822 if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE || in png_write_IHDR()
823 png_ptr->bit_depth < 8) in png_write_IHDR()
824 png_ptr->do_filter = PNG_FILTER_NONE; in png_write_IHDR()
827 png_ptr->do_filter = PNG_ALL_FILTERS; in png_write_IHDR()
830 png_ptr->mode = PNG_HAVE_IHDR; /* not READY_FOR_ZTXT */ in png_write_IHDR()
838 png_write_PLTE(png_structrp png_ptr, png_const_colorp palette, in png_write_PLTE() argument
847 max_palette_length = (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) ? in png_write_PLTE()
848 (1 << png_ptr->bit_depth) : PNG_MAX_PALETTE_LENGTH; in png_write_PLTE()
852 (png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) == 0 && in png_write_PLTE()
856 if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) in png_write_PLTE()
858 png_error(png_ptr, "Invalid number of colors in palette"); in png_write_PLTE()
863 png_warning(png_ptr, "Invalid number of colors in palette"); in png_write_PLTE()
868 if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) == 0) in png_write_PLTE()
870 png_warning(png_ptr, in png_write_PLTE()
876 png_ptr->num_palette = (png_uint_16)num_pal; in png_write_PLTE()
877 png_debug1(3, "num_palette = %d", png_ptr->num_palette); in png_write_PLTE()
879 png_write_chunk_header(png_ptr, png_PLTE, (png_uint_32)(num_pal * 3)); in png_write_PLTE()
887 png_write_chunk_data(png_ptr, buf, (png_size_t)3); in png_write_PLTE()
901 png_write_chunk_data(png_ptr, buf, (png_size_t)3); in png_write_PLTE()
905 png_write_chunk_end(png_ptr); in png_write_PLTE()
906 png_ptr->mode |= PNG_HAVE_PLTE; in png_write_PLTE()
927 png_compress_IDAT(png_structrp png_ptr, png_const_bytep input, in png_compress_IDAT() argument
930 if (png_ptr->zowner != png_IDAT) in png_compress_IDAT()
937 if (png_ptr->zbuffer_list == NULL) in png_compress_IDAT()
939 png_ptr->zbuffer_list = png_voidcast(png_compression_bufferp, in png_compress_IDAT()
940 png_malloc(png_ptr, PNG_COMPRESSION_BUFFER_SIZE(png_ptr))); in png_compress_IDAT()
941 png_ptr->zbuffer_list->next = NULL; in png_compress_IDAT()
945 png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list->next); in png_compress_IDAT()
948 if (png_deflate_claim(png_ptr, png_IDAT, png_image_size(png_ptr)) != Z_OK) in png_compress_IDAT()
949 png_error(png_ptr, png_ptr->zstream.msg); in png_compress_IDAT()
954 png_ptr->zstream.next_out = png_ptr->zbuffer_list->output; in png_compress_IDAT()
955 png_ptr->zstream.avail_out = png_ptr->zbuffer_size; in png_compress_IDAT()
962 png_ptr->zstream.next_in = PNGZ_INPUT_CAST(input); in png_compress_IDAT()
963 png_ptr->zstream.avail_in = 0; /* set below */ in png_compress_IDAT()
974 png_ptr->zstream.avail_in = avail; in png_compress_IDAT()
977 ret = deflate(&png_ptr->zstream, input_len > 0 ? Z_NO_FLUSH : flush); in png_compress_IDAT()
980 input_len += png_ptr->zstream.avail_in; in png_compress_IDAT()
981 png_ptr->zstream.avail_in = 0; in png_compress_IDAT()
987 if (png_ptr->zstream.avail_out == 0) in png_compress_IDAT()
989 png_bytep data = png_ptr->zbuffer_list->output; in png_compress_IDAT()
990 uInt size = png_ptr->zbuffer_size; in png_compress_IDAT()
996 if ((png_ptr->mode & PNG_HAVE_IDAT) == 0 && in png_compress_IDAT()
997 png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE) in png_compress_IDAT()
998 optimize_cmf(data, png_image_size(png_ptr)); in png_compress_IDAT()
1001 png_write_complete_chunk(png_ptr, png_IDAT, data, size); in png_compress_IDAT()
1002 png_ptr->mode |= PNG_HAVE_IDAT; in png_compress_IDAT()
1004 png_ptr->zstream.next_out = data; in png_compress_IDAT()
1005 png_ptr->zstream.avail_out = size; in png_compress_IDAT()
1027 png_error(png_ptr, "Z_OK on Z_FINISH with output space"); in png_compress_IDAT()
1038 png_bytep data = png_ptr->zbuffer_list->output; in png_compress_IDAT()
1039 uInt size = png_ptr->zbuffer_size - png_ptr->zstream.avail_out; in png_compress_IDAT()
1042 if ((png_ptr->mode & PNG_HAVE_IDAT) == 0 && in png_compress_IDAT()
1043 png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE) in png_compress_IDAT()
1044 optimize_cmf(data, png_image_size(png_ptr)); in png_compress_IDAT()
1047 png_write_complete_chunk(png_ptr, png_IDAT, data, size); in png_compress_IDAT()
1048 png_ptr->zstream.avail_out = 0; in png_compress_IDAT()
1049 png_ptr->zstream.next_out = NULL; in png_compress_IDAT()
1050 png_ptr->mode |= PNG_HAVE_IDAT | PNG_AFTER_IDAT; in png_compress_IDAT()
1052 png_ptr->zowner = 0; /* Release the stream */ in png_compress_IDAT()
1059 png_zstream_error(png_ptr, ret); in png_compress_IDAT()
1060 png_error(png_ptr, png_ptr->zstream.msg); in png_compress_IDAT()
1067 png_write_IEND(png_structrp png_ptr) in png_write_IEND() argument
1071 png_write_complete_chunk(png_ptr, png_IEND, NULL, (png_size_t)0); in png_write_IEND()
1072 png_ptr->mode |= PNG_HAVE_IEND; in png_write_IEND()
1078 png_write_gAMA_fixed(png_structrp png_ptr, png_fixed_point file_gamma) in png_write_gAMA_fixed() argument
1086 png_write_complete_chunk(png_ptr, png_gAMA, buf, (png_size_t)4); in png_write_gAMA_fixed()
1093 png_write_sRGB(png_structrp png_ptr, int srgb_intent) in png_write_sRGB() argument
1100 png_warning(png_ptr, in png_write_sRGB()
1104 png_write_complete_chunk(png_ptr, png_sRGB, buf, (png_size_t)1); in png_write_sRGB()
1111 png_write_iCCP(png_structrp png_ptr, png_const_charp name, in png_write_iCCP() argument
1126 png_error(png_ptr, "No profile for iCCP chunk"); /* internal error */ in png_write_iCCP()
1131 png_error(png_ptr, "ICC profile too short"); in png_write_iCCP()
1135 png_error(png_ptr, "ICC profile length invalid (not a multiple of 4)"); in png_write_iCCP()
1141 png_error(png_ptr, "Profile length does not match profile"); in png_write_iCCP()
1144 name_len = png_check_keyword(png_ptr, name, new_name); in png_write_iCCP()
1147 png_error(png_ptr, "iCCP: invalid keyword"); in png_write_iCCP()
1157 if (png_text_compress(png_ptr, png_iCCP, &comp, name_len) != Z_OK) in png_write_iCCP()
1158 png_error(png_ptr, png_ptr->zstream.msg); in png_write_iCCP()
1160 png_write_chunk_header(png_ptr, png_iCCP, name_len + comp.output_len); in png_write_iCCP()
1162 png_write_chunk_data(png_ptr, new_name, name_len); in png_write_iCCP()
1164 png_write_compressed_data_out(png_ptr, &comp); in png_write_iCCP()
1166 png_write_chunk_end(png_ptr); in png_write_iCCP()
1173 png_write_sPLT(png_structrp png_ptr, png_const_sPLT_tp spalette) in png_write_sPLT() argument
1187 name_len = png_check_keyword(png_ptr, spalette->name, new_name); in png_write_sPLT()
1190 png_error(png_ptr, "sPLT: invalid keyword"); in png_write_sPLT()
1193 png_write_chunk_header(png_ptr, png_sPLT, in png_write_sPLT()
1196 png_write_chunk_data(png_ptr, (png_bytep)new_name, in png_write_sPLT()
1199 png_write_chunk_data(png_ptr, &spalette->depth, (png_size_t)1); in png_write_sPLT()
1223 png_write_chunk_data(png_ptr, entrybuf, entry_size); in png_write_sPLT()
1247 png_write_chunk_data(png_ptr, entrybuf, entry_size); in png_write_sPLT()
1251 png_write_chunk_end(png_ptr); in png_write_sPLT()
1258 png_write_sBIT(png_structrp png_ptr, png_const_color_8p sbit, int color_type) in png_write_sBIT() argument
1271 png_ptr->usr_bit_depth); in png_write_sBIT()
1277 png_warning(png_ptr, "Invalid sBIT depth specified"); in png_write_sBIT()
1289 if (sbit->gray == 0 || sbit->gray > png_ptr->usr_bit_depth) in png_write_sBIT()
1291 png_warning(png_ptr, "Invalid sBIT depth specified"); in png_write_sBIT()
1301 if (sbit->alpha == 0 || sbit->alpha > png_ptr->usr_bit_depth) in png_write_sBIT()
1303 png_warning(png_ptr, "Invalid sBIT depth specified"); in png_write_sBIT()
1310 png_write_complete_chunk(png_ptr, png_sBIT, buf, size); in png_write_sBIT()
1317 png_write_cHRM_fixed(png_structrp png_ptr, const png_xy *xy) in png_write_cHRM_fixed() argument
1336 png_write_complete_chunk(png_ptr, png_cHRM, buf, 32); in png_write_cHRM_fixed()
1343 png_write_tRNS(png_structrp png_ptr, png_const_bytep trans_alpha, in png_write_tRNS() argument
1352 if (num_trans <= 0 || num_trans > (int)png_ptr->num_palette) in png_write_tRNS()
1354 png_app_warning(png_ptr, in png_write_tRNS()
1360 png_write_complete_chunk(png_ptr, png_tRNS, trans_alpha, in png_write_tRNS()
1367 if (tran->gray >= (1 << png_ptr->bit_depth)) in png_write_tRNS()
1369 png_app_warning(png_ptr, in png_write_tRNS()
1376 png_write_complete_chunk(png_ptr, png_tRNS, buf, (png_size_t)2); in png_write_tRNS()
1386 if (png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4]) != 0) in png_write_tRNS()
1391 png_app_warning(png_ptr, in png_write_tRNS()
1396 png_write_complete_chunk(png_ptr, png_tRNS, buf, (png_size_t)6); in png_write_tRNS()
1401 png_app_warning(png_ptr, "Can't write tRNS with an alpha channel"); in png_write_tRNS()
1409 png_write_bKGD(png_structrp png_ptr, png_const_color_16p back, int color_type) in png_write_bKGD() argument
1419 (png_ptr->num_palette != 0 || in png_write_bKGD()
1420 (png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) == 0) && in png_write_bKGD()
1422 back->index >= png_ptr->num_palette) in png_write_bKGD()
1424 png_warning(png_ptr, "Invalid background palette index"); in png_write_bKGD()
1429 png_write_complete_chunk(png_ptr, png_bKGD, buf, (png_size_t)1); in png_write_bKGD()
1438 if (png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4]) != 0) in png_write_bKGD()
1443 png_warning(png_ptr, in png_write_bKGD()
1449 png_write_complete_chunk(png_ptr, png_bKGD, buf, (png_size_t)6); in png_write_bKGD()
1454 if (back->gray >= (1 << png_ptr->bit_depth)) in png_write_bKGD()
1456 png_warning(png_ptr, in png_write_bKGD()
1463 png_write_complete_chunk(png_ptr, png_bKGD, buf, (png_size_t)2); in png_write_bKGD()
1471 png_write_hIST(png_structrp png_ptr, png_const_uint_16p hist, int num_hist) in png_write_hIST() argument
1478 if (num_hist > (int)png_ptr->num_palette) in png_write_hIST()
1481 png_ptr->num_palette); in png_write_hIST()
1483 png_warning(png_ptr, "Invalid number of histogram entries specified"); in png_write_hIST()
1487 png_write_chunk_header(png_ptr, png_hIST, (png_uint_32)(num_hist * 2)); in png_write_hIST()
1492 png_write_chunk_data(png_ptr, buf, (png_size_t)2); in png_write_hIST()
1495 png_write_chunk_end(png_ptr); in png_write_hIST()
1502 png_write_tEXt(png_structrp png_ptr, png_const_charp key, png_const_charp text, in png_write_tEXt() argument
1510 key_len = png_check_keyword(png_ptr, key, new_key); in png_write_tEXt()
1513 png_error(png_ptr, "tEXt: invalid keyword"); in png_write_tEXt()
1522 png_error(png_ptr, "tEXt: text too long"); in png_write_tEXt()
1525 png_write_chunk_header(png_ptr, png_tEXt, in png_write_tEXt()
1533 png_write_chunk_data(png_ptr, new_key, key_len + 1); in png_write_tEXt()
1536 png_write_chunk_data(png_ptr, (png_const_bytep)text, text_len); in png_write_tEXt()
1538 png_write_chunk_end(png_ptr); in png_write_tEXt()
1545 png_write_zTXt(png_structrp png_ptr, png_const_charp key, png_const_charp text, in png_write_zTXt() argument
1556 png_write_tEXt(png_ptr, key, text, 0); in png_write_zTXt()
1561 png_error(png_ptr, "zTXt: invalid compression type"); in png_write_zTXt()
1563 key_len = png_check_keyword(png_ptr, key, new_key); in png_write_zTXt()
1566 png_error(png_ptr, "zTXt: invalid keyword"); in png_write_zTXt()
1576 if (png_text_compress(png_ptr, png_zTXt, &comp, key_len) != Z_OK) in png_write_zTXt()
1577 png_error(png_ptr, png_ptr->zstream.msg); in png_write_zTXt()
1580 png_write_chunk_header(png_ptr, png_zTXt, key_len + comp.output_len); in png_write_zTXt()
1583 png_write_chunk_data(png_ptr, new_key, key_len); in png_write_zTXt()
1586 png_write_compressed_data_out(png_ptr, &comp); in png_write_zTXt()
1589 png_write_chunk_end(png_ptr); in png_write_zTXt()
1596 png_write_iTXt(png_structrp png_ptr, int compression, png_const_charp key, in png_write_iTXt() argument
1606 key_len = png_check_keyword(png_ptr, key, new_key); in png_write_iTXt()
1609 png_error(png_ptr, "iTXt: invalid keyword"); in png_write_iTXt()
1625 png_error(png_ptr, "iTXt: invalid compression"); in png_write_iTXt()
1662 if (png_text_compress(png_ptr, png_iTXt, &comp, prefix_len) != Z_OK) in png_write_iTXt()
1663 png_error(png_ptr, png_ptr->zstream.msg); in png_write_iTXt()
1669 png_error(png_ptr, "iTXt: uncompressed text too long"); in png_write_iTXt()
1675 png_write_chunk_header(png_ptr, png_iTXt, comp.output_len + prefix_len); in png_write_iTXt()
1677 png_write_chunk_data(png_ptr, new_key, key_len); in png_write_iTXt()
1679 png_write_chunk_data(png_ptr, (png_const_bytep)lang, lang_len); in png_write_iTXt()
1681 png_write_chunk_data(png_ptr, (png_const_bytep)lang_key, lang_key_len); in png_write_iTXt()
1684 png_write_compressed_data_out(png_ptr, &comp); in png_write_iTXt()
1687 png_write_chunk_data(png_ptr, (png_const_bytep)text, comp.output_len); in png_write_iTXt()
1689 png_write_chunk_end(png_ptr); in png_write_iTXt()
1696 png_write_oFFs(png_structrp png_ptr, png_int_32 x_offset, png_int_32 y_offset, in png_write_oFFs() argument
1704 png_warning(png_ptr, "Unrecognized unit type for oFFs chunk"); in png_write_oFFs()
1710 png_write_complete_chunk(png_ptr, png_oFFs, buf, (png_size_t)9); in png_write_oFFs()
1716 png_write_pCAL(png_structrp png_ptr, png_charp purpose, png_int_32 X0, in png_write_pCAL() argument
1730 png_error(png_ptr, "Unrecognized equation type for pCAL chunk"); in png_write_pCAL()
1732 purpose_len = png_check_keyword(png_ptr, purpose, new_purpose); in png_write_pCAL()
1735 png_error(png_ptr, "pCAL: invalid keyword"); in png_write_pCAL()
1744 params_len = (png_size_tp)png_malloc(png_ptr, in png_write_pCAL()
1759 png_write_chunk_header(png_ptr, png_pCAL, (png_uint_32)total_len); in png_write_pCAL()
1760 png_write_chunk_data(png_ptr, new_purpose, purpose_len); in png_write_pCAL()
1765 png_write_chunk_data(png_ptr, buf, (png_size_t)10); in png_write_pCAL()
1766 png_write_chunk_data(png_ptr, (png_const_bytep)units, (png_size_t)units_len); in png_write_pCAL()
1770 png_write_chunk_data(png_ptr, (png_const_bytep)params[i], params_len[i]); in png_write_pCAL()
1773 png_free(png_ptr, params_len); in png_write_pCAL()
1774 png_write_chunk_end(png_ptr); in png_write_pCAL()
1781 png_write_sCAL_s(png_structrp png_ptr, int unit, png_const_charp width, in png_write_sCAL_s() argument
1795 png_warning(png_ptr, "Can't write sCAL (buffer too small)"); in png_write_sCAL_s()
1804 png_write_complete_chunk(png_ptr, png_sCAL, buf, total_len); in png_write_sCAL_s()
1811 png_write_pHYs(png_structrp png_ptr, png_uint_32 x_pixels_per_unit, in png_write_pHYs() argument
1820 png_warning(png_ptr, "Unrecognized unit type for pHYs chunk"); in png_write_pHYs()
1826 png_write_complete_chunk(png_ptr, png_pHYs, buf, (png_size_t)9); in png_write_pHYs()
1835 png_write_tIME(png_structrp png_ptr, png_const_timep mod_time) in png_write_tIME() argument
1845 png_warning(png_ptr, "Invalid time specified for tIME chunk"); in png_write_tIME()
1856 png_write_complete_chunk(png_ptr, png_tIME, buf, (png_size_t)7); in png_write_tIME()
1862 png_write_start_row(png_structrp png_ptr) in png_write_start_row() argument
1889 usr_pixel_depth = png_ptr->usr_channels * png_ptr->usr_bit_depth; in png_write_start_row()
1890 buf_size = PNG_ROWBYTES(usr_pixel_depth, png_ptr->width) + 1; in png_write_start_row()
1893 png_ptr->transformed_pixel_depth = png_ptr->pixel_depth; in png_write_start_row()
1894 png_ptr->maximum_pixel_depth = (png_byte)usr_pixel_depth; in png_write_start_row()
1897 png_ptr->row_buf = png_voidcast(png_bytep, png_malloc(png_ptr, buf_size)); in png_write_start_row()
1899 png_ptr->row_buf[0] = PNG_FILTER_VALUE_NONE; in png_write_start_row()
1902 filters = png_ptr->do_filter; in png_write_start_row()
1904 if (png_ptr->height == 1) in png_write_start_row()
1907 if (png_ptr->width == 1) in png_write_start_row()
1913 png_ptr->do_filter = filters; in png_write_start_row()
1916 PNG_FILTER_PAETH)) != 0) && png_ptr->try_row == NULL) in png_write_start_row()
1920 png_ptr->try_row = png_voidcast(png_bytep, png_malloc(png_ptr, buf_size)); in png_write_start_row()
1935 png_ptr->tst_row = png_voidcast(png_bytep, png_malloc(png_ptr, in png_write_start_row()
1943 png_ptr->prev_row = png_voidcast(png_bytep, in png_write_start_row()
1944 png_calloc(png_ptr, buf_size)); in png_write_start_row()
1949 if (png_ptr->interlaced != 0) in png_write_start_row()
1951 if ((png_ptr->transformations & PNG_INTERLACE) == 0) in png_write_start_row()
1953 png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 - in png_write_start_row()
1956 png_ptr->usr_width = (png_ptr->width + png_pass_inc[0] - 1 - in png_write_start_row()
1962 png_ptr->num_rows = png_ptr->height; in png_write_start_row()
1963 png_ptr->usr_width = png_ptr->width; in png_write_start_row()
1970 png_ptr->num_rows = png_ptr->height; in png_write_start_row()
1971 png_ptr->usr_width = png_ptr->width; in png_write_start_row()
1977 png_write_finish_row(png_structrp png_ptr) in png_write_finish_row() argument
1998 png_ptr->row_number++; in png_write_finish_row()
2001 if (png_ptr->row_number < png_ptr->num_rows) in png_write_finish_row()
2006 if (png_ptr->interlaced != 0) in png_write_finish_row()
2008 png_ptr->row_number = 0; in png_write_finish_row()
2009 if ((png_ptr->transformations & PNG_INTERLACE) != 0) in png_write_finish_row()
2011 png_ptr->pass++; in png_write_finish_row()
2019 png_ptr->pass++; in png_write_finish_row()
2021 if (png_ptr->pass >= 7) in png_write_finish_row()
2024 png_ptr->usr_width = (png_ptr->width + in png_write_finish_row()
2025 png_pass_inc[png_ptr->pass] - 1 - in png_write_finish_row()
2026 png_pass_start[png_ptr->pass]) / in png_write_finish_row()
2027 png_pass_inc[png_ptr->pass]; in png_write_finish_row()
2029 png_ptr->num_rows = (png_ptr->height + in png_write_finish_row()
2030 png_pass_yinc[png_ptr->pass] - 1 - in png_write_finish_row()
2031 png_pass_ystart[png_ptr->pass]) / in png_write_finish_row()
2032 png_pass_yinc[png_ptr->pass]; in png_write_finish_row()
2034 if ((png_ptr->transformations & PNG_INTERLACE) != 0) in png_write_finish_row()
2037 } while (png_ptr->usr_width == 0 || png_ptr->num_rows == 0); in png_write_finish_row()
2042 if (png_ptr->pass < 7) in png_write_finish_row()
2044 if (png_ptr->prev_row != NULL) in png_write_finish_row()
2045 memset(png_ptr->prev_row, 0, in png_write_finish_row()
2046 (png_size_t)(PNG_ROWBYTES(png_ptr->usr_channels* in png_write_finish_row()
2047 png_ptr->usr_bit_depth, png_ptr->width)) + 1); in png_write_finish_row()
2056 png_compress_IDAT(png_ptr, NULL, 0, Z_FINISH); in png_write_finish_row()
2246 png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row,
2251 png_setup_sub_row(png_structrp png_ptr, const png_uint_32 bpp, in png_setup_sub_row() argument
2259 png_ptr->try_row[0] = PNG_FILTER_VALUE_SUB; in png_setup_sub_row()
2261 for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1; i < bpp; in png_setup_sub_row()
2268 for (lp = png_ptr->row_buf + 1; i < row_bytes; in png_setup_sub_row()
2282 png_setup_sub_row_only(png_structrp png_ptr, const png_uint_32 bpp, in png_setup_sub_row_only() argument
2288 png_ptr->try_row[0] = PNG_FILTER_VALUE_SUB; in png_setup_sub_row_only()
2290 for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1; i < bpp; in png_setup_sub_row_only()
2296 for (lp = png_ptr->row_buf + 1; i < row_bytes; in png_setup_sub_row_only()
2304 png_setup_up_row(png_structrp png_ptr, const png_size_t row_bytes, in png_setup_up_row() argument
2312 png_ptr->try_row[0] = PNG_FILTER_VALUE_UP; in png_setup_up_row()
2314 for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1, in png_setup_up_row()
2315 pp = png_ptr->prev_row + 1; i < row_bytes; in png_setup_up_row()
2328 png_setup_up_row_only(png_structrp png_ptr, const png_size_t row_bytes) in png_setup_up_row_only() argument
2333 png_ptr->try_row[0] = PNG_FILTER_VALUE_UP; in png_setup_up_row_only()
2335 for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1, in png_setup_up_row_only()
2336 pp = png_ptr->prev_row + 1; i < row_bytes; in png_setup_up_row_only()
2344 png_setup_avg_row(png_structrp png_ptr, const png_uint_32 bpp, in png_setup_avg_row() argument
2352 png_ptr->try_row[0] = PNG_FILTER_VALUE_AVG; in png_setup_avg_row()
2354 for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1, in png_setup_avg_row()
2355 pp = png_ptr->prev_row + 1; i < bpp; i++) in png_setup_avg_row()
2362 for (lp = png_ptr->row_buf + 1; i < row_bytes; i++) in png_setup_avg_row()
2376 png_setup_avg_row_only(png_structrp png_ptr, const png_uint_32 bpp, in png_setup_avg_row_only() argument
2382 png_ptr->try_row[0] = PNG_FILTER_VALUE_AVG; in png_setup_avg_row_only()
2384 for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1, in png_setup_avg_row_only()
2385 pp = png_ptr->prev_row + 1; i < bpp; i++) in png_setup_avg_row_only()
2390 for (lp = png_ptr->row_buf + 1; i < row_bytes; i++) in png_setup_avg_row_only()
2398 png_setup_paeth_row(png_structrp png_ptr, const png_uint_32 bpp, in png_setup_paeth_row() argument
2406 png_ptr->try_row[0] = PNG_FILTER_VALUE_PAETH; in png_setup_paeth_row()
2408 for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1, in png_setup_paeth_row()
2409 pp = png_ptr->prev_row + 1; i < bpp; i++) in png_setup_paeth_row()
2416 for (lp = png_ptr->row_buf + 1, cp = png_ptr->prev_row + 1; i < row_bytes; in png_setup_paeth_row()
2451 png_setup_paeth_row_only(png_structrp png_ptr, const png_uint_32 bpp, in png_setup_paeth_row_only() argument
2457 png_ptr->try_row[0] = PNG_FILTER_VALUE_PAETH; in png_setup_paeth_row_only()
2459 for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1, in png_setup_paeth_row_only()
2460 pp = png_ptr->prev_row + 1; i < bpp; i++) in png_setup_paeth_row_only()
2465 for (lp = png_ptr->row_buf + 1, cp = png_ptr->prev_row + 1; i < row_bytes; in png_setup_paeth_row_only()
2495 png_write_find_filter(png_structrp png_ptr, png_row_infop row_info) in png_write_find_filter() argument
2498 png_write_filtered_row(png_ptr, png_ptr->row_buf, row_info->rowbytes+1); in png_write_find_filter()
2500 unsigned int filter_to_do = png_ptr->do_filter; in png_write_find_filter()
2512 row_buf = png_ptr->row_buf; in png_write_find_filter()
2544 best_row = png_ptr->row_buf; in png_write_find_filter()
2579 png_setup_sub_row_only(png_ptr, bpp, row_bytes); in png_write_find_filter()
2580 best_row = png_ptr->try_row; in png_write_find_filter()
2588 sum = png_setup_sub_row(png_ptr, bpp, row_bytes, lmins); in png_write_find_filter()
2593 best_row = png_ptr->try_row; in png_write_find_filter()
2594 if (png_ptr->tst_row != NULL) in png_write_find_filter()
2596 png_ptr->try_row = png_ptr->tst_row; in png_write_find_filter()
2597 png_ptr->tst_row = best_row; in png_write_find_filter()
2605 png_setup_up_row_only(png_ptr, row_bytes); in png_write_find_filter()
2606 best_row = png_ptr->try_row; in png_write_find_filter()
2614 sum = png_setup_up_row(png_ptr, row_bytes, lmins); in png_write_find_filter()
2619 best_row = png_ptr->try_row; in png_write_find_filter()
2620 if (png_ptr->tst_row != NULL) in png_write_find_filter()
2622 png_ptr->try_row = png_ptr->tst_row; in png_write_find_filter()
2623 png_ptr->tst_row = best_row; in png_write_find_filter()
2631 png_setup_avg_row_only(png_ptr, bpp, row_bytes); in png_write_find_filter()
2632 best_row = png_ptr->try_row; in png_write_find_filter()
2640 sum= png_setup_avg_row(png_ptr, bpp, row_bytes, lmins); in png_write_find_filter()
2645 best_row = png_ptr->try_row; in png_write_find_filter()
2646 if (png_ptr->tst_row != NULL) in png_write_find_filter()
2648 png_ptr->try_row = png_ptr->tst_row; in png_write_find_filter()
2649 png_ptr->tst_row = best_row; in png_write_find_filter()
2657 png_setup_paeth_row_only(png_ptr, bpp, row_bytes); in png_write_find_filter()
2658 best_row = png_ptr->try_row; in png_write_find_filter()
2666 sum = png_setup_paeth_row(png_ptr, bpp, row_bytes, lmins); in png_write_find_filter()
2670 best_row = png_ptr->try_row; in png_write_find_filter()
2671 if (png_ptr->tst_row != NULL) in png_write_find_filter()
2673 png_ptr->try_row = png_ptr->tst_row; in png_write_find_filter()
2674 png_ptr->tst_row = best_row; in png_write_find_filter()
2680 png_write_filtered_row(png_ptr, best_row, row_info->rowbytes+1); in png_write_find_filter()
2688 png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row, in png_write_filtered_row() argument
2695 png_compress_IDAT(png_ptr, filtered_row, full_row_length, Z_NO_FLUSH); in png_write_filtered_row()
2699 if (png_ptr->prev_row != NULL) in png_write_filtered_row()
2703 tptr = png_ptr->prev_row; in png_write_filtered_row()
2704 png_ptr->prev_row = png_ptr->row_buf; in png_write_filtered_row()
2705 png_ptr->row_buf = tptr; in png_write_filtered_row()
2710 png_write_finish_row(png_ptr); in png_write_filtered_row()
2713 png_ptr->flush_rows++; in png_write_filtered_row()
2715 if (png_ptr->flush_dist > 0 && in png_write_filtered_row()
2716 png_ptr->flush_rows >= png_ptr->flush_dist) in png_write_filtered_row()
2718 png_write_flush(png_ptr); in png_write_filtered_row()