diff options
Diffstat (limited to 'src/3rdparty/libpng/pngset.c')
| -rw-r--r-- | src/3rdparty/libpng/pngset.c | 386 |
1 files changed, 132 insertions, 254 deletions
diff --git a/src/3rdparty/libpng/pngset.c b/src/3rdparty/libpng/pngset.c index 9e1b885..adb4016 100644 --- a/src/3rdparty/libpng/pngset.c +++ b/src/3rdparty/libpng/pngset.c @@ -1,8 +1,8 @@ /* pngset.c - storage of image information into info struct * - * Last changed in libpng 1.2.40 [September 10, 2009] - * Copyright (c) 1998-2009 Glenn Randers-Pehrson + * Last changed in libpng 1.4.0 [January 3, 2010] + * Copyright (c) 1998-2010 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * @@ -16,11 +16,12 @@ * info struct and allows us to change the structure in the future. */ -#define PNG_INTERNAL +#define PNG_NO_PEDANTIC_WARNINGS #include "png.h" #if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) +#include "pngpriv.h" -#if defined(PNG_bKGD_SUPPORTED) +#ifdef PNG_bKGD_SUPPORTED void PNGAPI png_set_bKGD(png_structp png_ptr, png_infop info_ptr, png_color_16p background) { @@ -34,7 +35,7 @@ png_set_bKGD(png_structp png_ptr, png_infop info_ptr, png_color_16p background) } #endif -#if defined(PNG_cHRM_SUPPORTED) +#ifdef PNG_cHRM_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED void PNGAPI png_set_cHRM(png_structp png_ptr, png_infop info_ptr, @@ -80,7 +81,7 @@ png_set_cHRM_fixed(png_structp png_ptr, png_infop info_ptr, if (png_ptr == NULL || info_ptr == NULL) return; -#if !defined(PNG_NO_CHECK_cHRM) +#ifdef PNG_CHECK_cHRM_SUPPORTED if (png_check_cHRM_fixed(png_ptr, white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y)) #endif @@ -109,7 +110,7 @@ png_set_cHRM_fixed(png_structp png_ptr, png_infop info_ptr, #endif /* PNG_FIXED_POINT_SUPPORTED */ #endif /* PNG_cHRM_SUPPORTED */ -#if defined(PNG_gAMA_SUPPORTED) +#ifdef PNG_gAMA_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED void PNGAPI png_set_gAMA(png_structp png_ptr, png_infop info_ptr, double file_gamma) @@ -176,7 +177,7 @@ png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point } #endif -#if defined(PNG_hIST_SUPPORTED) +#ifdef PNG_hIST_SUPPORTED void PNGAPI png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist) { @@ -191,21 +192,19 @@ png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist) > PNG_MAX_PALETTE_LENGTH) { png_warning(png_ptr, - "Invalid palette size, hIST allocation skipped."); + "Invalid palette size, hIST allocation skipped"); return; } -#ifdef PNG_FREE_ME_SUPPORTED png_free_data(png_ptr, info_ptr, PNG_FREE_HIST, 0); -#endif /* Changed from info->num_palette to PNG_MAX_PALETTE_LENGTH in * version 1.2.1 */ png_ptr->hist = (png_uint_16p)png_malloc_warn(png_ptr, - (png_uint_32)(PNG_MAX_PALETTE_LENGTH * png_sizeof(png_uint_16))); + PNG_MAX_PALETTE_LENGTH * png_sizeof(png_uint_16)); if (png_ptr->hist == NULL) { - png_warning(png_ptr, "Insufficient memory for hIST chunk data."); + png_warning(png_ptr, "Insufficient memory for hIST chunk data"); return; } @@ -214,11 +213,7 @@ png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist) info_ptr->hist = png_ptr->hist; info_ptr->valid |= PNG_INFO_hIST; -#ifdef PNG_FREE_ME_SUPPORTED info_ptr->free_me |= PNG_FREE_HIST; -#else - png_ptr->flags |= PNG_FLAG_FREE_HIST; -#endif } #endif @@ -233,82 +228,18 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr, if (png_ptr == NULL || info_ptr == NULL) return; - /* Check for width and height valid values */ - if (width == 0 || height == 0) - png_error(png_ptr, "Image width or height is zero in IHDR"); -#ifdef PNG_SET_USER_LIMITS_SUPPORTED - if (width > png_ptr->user_width_max || height > png_ptr->user_height_max) - png_error(png_ptr, "image size exceeds user limits in IHDR"); -#else - if (width > PNG_USER_WIDTH_MAX || height > PNG_USER_HEIGHT_MAX) - png_error(png_ptr, "image size exceeds user limits in IHDR"); -#endif - if (width > PNG_UINT_31_MAX || height > PNG_UINT_31_MAX) - png_error(png_ptr, "Invalid image size in IHDR"); - if ( width > (PNG_UINT_32_MAX - >> 3) /* 8-byte RGBA pixels */ - - 64 /* bigrowbuf hack */ - - 1 /* filter byte */ - - 7*8 /* rounding of width to multiple of 8 pixels */ - - 8) /* extra max_pixel_depth pad */ - png_warning(png_ptr, "Width is too large for libpng to process pixels"); - - /* Check other values */ - if (bit_depth != 1 && bit_depth != 2 && bit_depth != 4 && - bit_depth != 8 && bit_depth != 16) - png_error(png_ptr, "Invalid bit depth in IHDR"); - - if (color_type < 0 || color_type == 1 || - color_type == 5 || color_type > 6) - png_error(png_ptr, "Invalid color type in IHDR"); - - if (((color_type == PNG_COLOR_TYPE_PALETTE) && bit_depth > 8) || - ((color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_GRAY_ALPHA || - color_type == PNG_COLOR_TYPE_RGB_ALPHA) && bit_depth < 8)) - png_error(png_ptr, "Invalid color type/bit depth combination in IHDR"); - - if (interlace_type >= PNG_INTERLACE_LAST) - png_error(png_ptr, "Unknown interlace method in IHDR"); - - if (compression_type != PNG_COMPRESSION_TYPE_BASE) - png_error(png_ptr, "Unknown compression method in IHDR"); - -#if defined(PNG_MNG_FEATURES_SUPPORTED) - /* Accept filter_method 64 (intrapixel differencing) only if - * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and - * 2. Libpng did not read a PNG signature (this filter_method is only - * used in PNG datastreams that are embedded in MNG datastreams) and - * 3. The application called png_permit_mng_features with a mask that - * included PNG_FLAG_MNG_FILTER_64 and - * 4. The filter_method is 64 and - * 5. The color_type is RGB or RGBA - */ - 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"); - if (filter_type != PNG_FILTER_TYPE_BASE) - { - if (!((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - (filter_type == PNG_INTRAPIXEL_DIFFERENCING) && - ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) == 0) && - (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_RGB_ALPHA))) - png_error(png_ptr, "Unknown filter method in IHDR"); - if (png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) - png_warning(png_ptr, "Invalid filter method in IHDR"); - } -#else - if (filter_type != PNG_FILTER_TYPE_BASE) - png_error(png_ptr, "Unknown filter method in IHDR"); -#endif - info_ptr->width = width; info_ptr->height = height; info_ptr->bit_depth = (png_byte)bit_depth; - info_ptr->color_type =(png_byte) color_type; + info_ptr->color_type = (png_byte)color_type; info_ptr->compression_type = (png_byte)compression_type; info_ptr->filter_type = (png_byte)filter_type; info_ptr->interlace_type = (png_byte)interlace_type; + + png_check_IHDR (png_ptr, info_ptr->width, info_ptr->height, + info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type, + info_ptr->compression_type, info_ptr->filter_type); + if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) info_ptr->channels = 1; else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR) @@ -326,12 +257,12 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr, - 1 /* filter byte */ - 7*8 /* rounding of width to multiple of 8 pixels */ - 8) /* extra max_pixel_depth pad */ - info_ptr->rowbytes = (png_size_t)0; + info_ptr->rowbytes = 0; else info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width); } -#if defined(PNG_oFFs_SUPPORTED) +#ifdef PNG_oFFs_SUPPORTED void PNGAPI png_set_oFFs(png_structp png_ptr, png_infop info_ptr, png_int_32 offset_x, png_int_32 offset_y, int unit_type) @@ -348,13 +279,13 @@ png_set_oFFs(png_structp png_ptr, png_infop info_ptr, } #endif -#if defined(PNG_pCAL_SUPPORTED) +#ifdef PNG_pCAL_SUPPORTED void PNGAPI png_set_pCAL(png_structp png_ptr, png_infop info_ptr, png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams, png_charp units, png_charpp params) { - png_uint_32 length; + png_size_t length; int i; png_debug1(1, "in %s storage function", "pCAL"); @@ -368,10 +299,10 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr, info_ptr->pcal_purpose = (png_charp)png_malloc_warn(png_ptr, length); if (info_ptr->pcal_purpose == NULL) { - png_warning(png_ptr, "Insufficient memory for pCAL purpose."); + png_warning(png_ptr, "Insufficient memory for pCAL purpose"); return; } - png_memcpy(info_ptr->pcal_purpose, purpose, (png_size_t)length); + png_memcpy(info_ptr->pcal_purpose, purpose, length); png_debug(3, "storing X0, X1, type, and nparams in info"); info_ptr->pcal_X0 = X0; @@ -385,16 +316,16 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr, info_ptr->pcal_units = (png_charp)png_malloc_warn(png_ptr, length); if (info_ptr->pcal_units == NULL) { - png_warning(png_ptr, "Insufficient memory for pCAL units."); + png_warning(png_ptr, "Insufficient memory for pCAL units"); return; } - png_memcpy(info_ptr->pcal_units, units, (png_size_t)length); + png_memcpy(info_ptr->pcal_units, units, length); info_ptr->pcal_params = (png_charpp)png_malloc_warn(png_ptr, - (png_uint_32)((nparams + 1) * png_sizeof(png_charp))); + (png_size_t)((nparams + 1) * png_sizeof(png_charp))); if (info_ptr->pcal_params == NULL) { - png_warning(png_ptr, "Insufficient memory for pCAL params."); + png_warning(png_ptr, "Insufficient memory for pCAL params"); return; } @@ -408,16 +339,14 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr, info_ptr->pcal_params[i] = (png_charp)png_malloc_warn(png_ptr, length); if (info_ptr->pcal_params[i] == NULL) { - png_warning(png_ptr, "Insufficient memory for pCAL parameter."); + png_warning(png_ptr, "Insufficient memory for pCAL parameter"); return; } - png_memcpy(info_ptr->pcal_params[i], params[i], (png_size_t)length); + png_memcpy(info_ptr->pcal_params[i], params[i], length); } info_ptr->valid |= PNG_INFO_pCAL; -#ifdef PNG_FREE_ME_SUPPORTED info_ptr->free_me |= PNG_FREE_PCAL; -#endif } #endif @@ -444,7 +373,7 @@ void PNGAPI png_set_sCAL_s(png_structp png_ptr, png_infop info_ptr, int unit, png_charp swidth, png_charp sheight) { - png_uint_32 length; + png_size_t length; png_debug1(1, "in %s storage function", "sCAL"); @@ -460,10 +389,10 @@ png_set_sCAL_s(png_structp png_ptr, png_infop info_ptr, if (info_ptr->scal_s_width == NULL) { png_warning(png_ptr, - "Memory allocation failed while processing sCAL."); + "Memory allocation failed while processing sCAL"); return; } - png_memcpy(info_ptr->scal_s_width, swidth, (png_size_t)length); + png_memcpy(info_ptr->scal_s_width, swidth, length); length = png_strlen(sheight) + 1; png_debug1(3, "allocating unit for info (%u bytes)", @@ -474,20 +403,18 @@ png_set_sCAL_s(png_structp png_ptr, png_infop info_ptr, png_free (png_ptr, info_ptr->scal_s_width); info_ptr->scal_s_width = NULL; png_warning(png_ptr, - "Memory allocation failed while processing sCAL."); + "Memory allocation failed while processing sCAL"); return; } - png_memcpy(info_ptr->scal_s_height, sheight, (png_size_t)length); + png_memcpy(info_ptr->scal_s_height, sheight, length); info_ptr->valid |= PNG_INFO_sCAL; -#ifdef PNG_FREE_ME_SUPPORTED info_ptr->free_me |= PNG_FREE_SCAL; -#endif } #endif #endif #endif -#if defined(PNG_pHYs_SUPPORTED) +#ifdef PNG_pHYs_SUPPORTED void PNGAPI png_set_pHYs(png_structp png_ptr, png_infop info_ptr, png_uint_32 res_x, png_uint_32 res_y, int unit_type) @@ -525,37 +452,28 @@ png_set_PLTE(png_structp png_ptr, png_infop info_ptr, } } - /* - * It may not actually be necessary to set png_ptr->palette here; + /* It may not actually be necessary to set png_ptr->palette here; * we do it for backward compatibility with the way the png_handle_tRNS * function used to do the allocation. */ -#ifdef PNG_FREE_ME_SUPPORTED png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0); -#endif /* Changed in libpng-1.2.1 to allocate PNG_MAX_PALETTE_LENGTH instead * of num_palette entries, in case of an invalid PNG file that has * too-large sample values. */ - png_ptr->palette = (png_colorp)png_malloc(png_ptr, + png_ptr->palette = (png_colorp)png_calloc(png_ptr, PNG_MAX_PALETTE_LENGTH * png_sizeof(png_color)); - png_memset(png_ptr->palette, 0, PNG_MAX_PALETTE_LENGTH * - png_sizeof(png_color)); png_memcpy(png_ptr->palette, palette, num_palette * png_sizeof(png_color)); info_ptr->palette = png_ptr->palette; info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette; -#ifdef PNG_FREE_ME_SUPPORTED info_ptr->free_me |= PNG_FREE_PLTE; -#else - png_ptr->flags |= PNG_FLAG_FREE_PLTE; -#endif info_ptr->valid |= PNG_INFO_PLTE; } -#if defined(PNG_sBIT_SUPPORTED) +#ifdef PNG_sBIT_SUPPORTED void PNGAPI png_set_sBIT(png_structp png_ptr, png_infop info_ptr, png_color_8p sig_bit) @@ -570,7 +488,7 @@ png_set_sBIT(png_structp png_ptr, png_infop info_ptr, } #endif -#if defined(PNG_sRGB_SUPPORTED) +#ifdef PNG_sRGB_SUPPORTED void PNGAPI png_set_sRGB(png_structp png_ptr, png_infop info_ptr, int intent) { @@ -587,7 +505,7 @@ void PNGAPI png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr, int intent) { -#if defined(PNG_gAMA_SUPPORTED) +#ifdef PNG_gAMA_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED float file_gamma; #endif @@ -595,7 +513,7 @@ png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr, png_fixed_point int_file_gamma; #endif #endif -#if defined(PNG_cHRM_SUPPORTED) +#ifdef PNG_cHRM_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED float white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y; #endif @@ -609,7 +527,7 @@ png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr, png_set_sRGB(png_ptr, info_ptr, intent); -#if defined(PNG_gAMA_SUPPORTED) +#ifdef PNG_gAMA_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED file_gamma = (float).45455; png_set_gAMA(png_ptr, info_ptr, file_gamma); @@ -620,7 +538,7 @@ png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr, #endif #endif -#if defined(PNG_cHRM_SUPPORTED) +#ifdef PNG_cHRM_SUPPORTED int_white_x = 31270L; int_white_y = 32900L; int_red_x = 64000L; @@ -641,28 +559,21 @@ png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr, blue_y = (float).06; #endif -#if !defined(PNG_NO_CHECK_cHRM) - if (png_check_cHRM_fixed(png_ptr, - int_white_x, int_white_y, int_red_x, int_red_y, int_green_x, - int_green_y, int_blue_x, int_blue_y)) -#endif - { #ifdef PNG_FIXED_POINT_SUPPORTED - png_set_cHRM_fixed(png_ptr, info_ptr, - int_white_x, int_white_y, int_red_x, int_red_y, int_green_x, - int_green_y, int_blue_x, int_blue_y); + png_set_cHRM_fixed(png_ptr, info_ptr, + int_white_x, int_white_y, int_red_x, int_red_y, int_green_x, + int_green_y, int_blue_x, int_blue_y); #endif #ifdef PNG_FLOATING_POINT_SUPPORTED - png_set_cHRM(png_ptr, info_ptr, - white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y); + png_set_cHRM(png_ptr, info_ptr, + white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y); #endif - } #endif /* cHRM */ } #endif /* sRGB */ -#if defined(PNG_iCCP_SUPPORTED) +#ifdef PNG_iCCP_SUPPORTED void PNGAPI png_set_iCCP(png_structp png_ptr, png_infop info_ptr, png_charp name, int compression_type, @@ -681,7 +592,7 @@ png_set_iCCP(png_structp png_ptr, png_infop info_ptr, new_iccp_name = (png_charp)png_malloc_warn(png_ptr, length); if (new_iccp_name == NULL) { - png_warning(png_ptr, "Insufficient memory to process iCCP chunk."); + png_warning(png_ptr, "Insufficient memory to process iCCP chunk"); return; } png_memcpy(new_iccp_name, name, length); @@ -690,7 +601,7 @@ png_set_iCCP(png_structp png_ptr, png_infop info_ptr, { png_free (png_ptr, new_iccp_name); png_warning(png_ptr, - "Insufficient memory to process iCCP profile."); + "Insufficient memory to process iCCP profile"); return; } png_memcpy(new_iccp_profile, profile, (png_size_t)proflen); @@ -701,16 +612,15 @@ png_set_iCCP(png_structp png_ptr, png_infop info_ptr, info_ptr->iccp_name = new_iccp_name; info_ptr->iccp_profile = new_iccp_profile; /* Compression is always zero but is here so the API and info structure - * does not have to change if we introduce multiple compression types */ + * does not have to change if we introduce multiple compression types + */ info_ptr->iccp_compression = (png_byte)compression_type; -#ifdef PNG_FREE_ME_SUPPORTED info_ptr->free_me |= PNG_FREE_ICCP; -#endif info_ptr->valid |= PNG_INFO_iCCP; } #endif -#if defined(PNG_TEXT_SUPPORTED) +#ifdef PNG_TEXT_SUPPORTED void PNGAPI png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, int num_text) @@ -748,7 +658,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, info_ptr->max_text = info_ptr->num_text + num_text + 8; old_text = info_ptr->text; info_ptr->text = (png_textp)png_malloc_warn(png_ptr, - (png_uint_32)(info_ptr->max_text * png_sizeof(png_text))); + (png_size_t)(info_ptr->max_text * png_sizeof(png_text))); if (info_ptr->text == NULL) { png_free(png_ptr, old_text); @@ -763,12 +673,10 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, info_ptr->max_text = num_text + 8; info_ptr->num_text = 0; info_ptr->text = (png_textp)png_malloc_warn(png_ptr, - (png_uint_32)(info_ptr->max_text * png_sizeof(png_text))); + (png_size_t)(info_ptr->max_text * png_sizeof(png_text))); if (info_ptr->text == NULL) return(1); -#ifdef PNG_FREE_ME_SUPPORTED info_ptr->free_me |= PNG_FREE_TEXT; -#endif } png_debug1(3, "allocated %d entries for info_ptr->text", info_ptr->max_text); @@ -789,10 +697,12 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, lang_len = 0; lang_key_len = 0; } + else #ifdef PNG_iTXt_SUPPORTED { /* Set iTXt data */ + if (text_ptr[i].lang != NULL) lang_len = png_strlen(text_ptr[i].lang); else @@ -802,9 +712,9 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, else lang_key_len = 0; } -#else +#else /* PNG_iTXt_SUPPORTED */ { - png_warning(png_ptr, "iTXt chunk not supported."); + png_warning(png_ptr, "iTXt chunk not supported"); continue; } #endif @@ -819,6 +729,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, #endif textp->compression = PNG_TEXT_COMPRESSION_NONE; } + else { text_length = png_strlen(text_ptr[i].text); @@ -826,12 +737,12 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, } textp->key = (png_charp)png_malloc_warn(png_ptr, - (png_uint_32) + (png_size_t) (key_len + text_length + lang_len + lang_key_len + 4)); if (textp->key == NULL) return(1); png_debug2(2, "Allocated %lu bytes at %x in png_set_text", - (png_uint_32) + (unsigned long)(png_uint_32) (key_len + lang_len + lang_key_len + text_length + 4), (int)textp->key); @@ -870,6 +781,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, } else #endif + { textp->text_length = text_length; #ifdef PNG_iTXt_SUPPORTED @@ -883,7 +795,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, } #endif -#if defined(PNG_tIME_SUPPORTED) +#ifdef PNG_tIME_SUPPORTED void PNGAPI png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time) { @@ -898,47 +810,44 @@ png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time) } #endif -#if defined(PNG_tRNS_SUPPORTED) +#ifdef PNG_tRNS_SUPPORTED void PNGAPI png_set_tRNS(png_structp png_ptr, png_infop info_ptr, - png_bytep trans, int num_trans, png_color_16p trans_values) + png_bytep trans_alpha, int num_trans, png_color_16p trans_color) { png_debug1(1, "in %s storage function", "tRNS"); if (png_ptr == NULL || info_ptr == NULL) return; - if (trans != NULL) + if (trans_alpha != NULL) { - /* - * It may not actually be necessary to set png_ptr->trans here; + /* It may not actually be necessary to set png_ptr->trans_alpha here; * we do it for backward compatibility with the way the png_handle_tRNS * function used to do the allocation. */ -#ifdef PNG_FREE_ME_SUPPORTED png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0); -#endif /* Changed from num_trans to PNG_MAX_PALETTE_LENGTH in version 1.2.1 */ - png_ptr->trans = info_ptr->trans = (png_bytep)png_malloc(png_ptr, - (png_uint_32)PNG_MAX_PALETTE_LENGTH); + png_ptr->trans_alpha = info_ptr->trans_alpha = (png_bytep)png_malloc(png_ptr, + (png_size_t)PNG_MAX_PALETTE_LENGTH); if (num_trans > 0 && num_trans <= PNG_MAX_PALETTE_LENGTH) - png_memcpy(info_ptr->trans, trans, (png_size_t)num_trans); + png_memcpy(info_ptr->trans_alpha, trans_alpha, (png_size_t)num_trans); } - if (trans_values != NULL) + if (trans_color != NULL) { int sample_max = (1 << info_ptr->bit_depth); if ((info_ptr->color_type == PNG_COLOR_TYPE_GRAY && - (int)trans_values->gray > sample_max) || + (int)trans_color->gray > sample_max) || (info_ptr->color_type == PNG_COLOR_TYPE_RGB && - ((int)trans_values->red > sample_max || - (int)trans_values->green > sample_max || - (int)trans_values->blue > sample_max))) + ((int)trans_color->red > sample_max || + (int)trans_color->green > sample_max || + (int)trans_color->blue > sample_max))) png_warning(png_ptr, "tRNS chunk has out-of-range samples for bit_depth"); - png_memcpy(&(info_ptr->trans_values), trans_values, + png_memcpy(&(info_ptr->trans_color), trans_color, png_sizeof(png_color_16)); if (num_trans == 0) num_trans = 1; @@ -948,16 +857,12 @@ png_set_tRNS(png_structp png_ptr, png_infop info_ptr, if (num_trans != 0) { info_ptr->valid |= PNG_INFO_tRNS; -#ifdef PNG_FREE_ME_SUPPORTED info_ptr->free_me |= PNG_FREE_TRNS; -#else - png_ptr->flags |= PNG_FLAG_FREE_TRNS; -#endif } } #endif -#if defined(PNG_sPLT_SUPPORTED) +#ifdef PNG_sPLT_SUPPORTED void PNGAPI png_set_sPLT(png_structp png_ptr, png_infop info_ptr, png_sPLT_tp entries, int nentries) @@ -977,15 +882,15 @@ png_set_sPLT(png_structp png_ptr, np = (png_sPLT_tp)png_malloc_warn(png_ptr, (info_ptr->splt_palettes_num + nentries) * - (png_uint_32)png_sizeof(png_sPLT_t)); + (png_size_t)png_sizeof(png_sPLT_t)); if (np == NULL) { - png_warning(png_ptr, "No memory for sPLT palettes."); - return; + png_warning(png_ptr, "No memory for sPLT palettes"); + return; } png_memcpy(np, info_ptr->splt_palettes, - info_ptr->splt_palettes_num * png_sizeof(png_sPLT_t)); + info_ptr->splt_palettes_num * png_sizeof(png_sPLT_t)); png_free(png_ptr, info_ptr->splt_palettes); info_ptr->splt_palettes=NULL; @@ -996,7 +901,7 @@ png_set_sPLT(png_structp png_ptr, png_uint_32 length; length = png_strlen(from->name) + 1; - to->name = (png_charp)png_malloc_warn(png_ptr, length); + to->name = (png_charp)png_malloc_warn(png_ptr, (png_size_t)length); if (to->name == NULL) { png_warning(png_ptr, @@ -1005,7 +910,7 @@ png_set_sPLT(png_structp png_ptr, } png_memcpy(to->name, from->name, length); to->entries = (png_sPLT_entryp)png_malloc_warn(png_ptr, - (png_uint_32)(from->nentries * png_sizeof(png_sPLT_entry))); + (png_size_t)(from->nentries * png_sizeof(png_sPLT_entry))); if (to->entries == NULL) { png_warning(png_ptr, @@ -1023,13 +928,11 @@ png_set_sPLT(png_structp png_ptr, info_ptr->splt_palettes = np; info_ptr->splt_palettes_num += nentries; info_ptr->valid |= PNG_INFO_sPLT; -#ifdef PNG_FREE_ME_SUPPORTED info_ptr->free_me |= PNG_FREE_SPLT; -#endif } #endif /* PNG_sPLT_SUPPORTED */ -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED +#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED void PNGAPI png_set_unknown_chunks(png_structp png_ptr, png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns) @@ -1041,28 +944,27 @@ png_set_unknown_chunks(png_structp png_ptr, return; np = (png_unknown_chunkp)png_malloc_warn(png_ptr, - (png_uint_32)((info_ptr->unknown_chunks_num + num_unknowns) * + (png_size_t)((info_ptr->unknown_chunks_num + num_unknowns) * png_sizeof(png_unknown_chunk))); if (np == NULL) { png_warning(png_ptr, - "Out of memory while processing unknown chunk."); + "Out of memory while processing unknown chunk"); return; } png_memcpy(np, info_ptr->unknown_chunks, - info_ptr->unknown_chunks_num * png_sizeof(png_unknown_chunk)); + info_ptr->unknown_chunks_num * png_sizeof(png_unknown_chunk)); png_free(png_ptr, info_ptr->unknown_chunks); - info_ptr->unknown_chunks=NULL; + info_ptr->unknown_chunks = NULL; for (i = 0; i < num_unknowns; i++) { png_unknown_chunkp to = np + info_ptr->unknown_chunks_num + i; png_unknown_chunkp from = unknowns + i; - png_memcpy((png_charp)to->name, - (png_charp)from->name, - png_sizeof(from->name)); + png_memcpy((png_charp)to->name, (png_charp)from->name, + png_sizeof(from->name)); to->name[png_sizeof(to->name)-1] = '\0'; to->size = from->size; /* Note our location in the read or write sequence */ @@ -1073,11 +975,11 @@ png_set_unknown_chunks(png_structp png_ptr, else { to->data = (png_bytep)png_malloc_warn(png_ptr, - (png_uint_32)from->size); + (png_size_t)from->size); if (to->data == NULL) { png_warning(png_ptr, - "Out of memory while processing unknown chunk."); + "Out of memory while processing unknown chunk"); to->size = 0; } else @@ -1087,41 +989,20 @@ png_set_unknown_chunks(png_structp png_ptr, info_ptr->unknown_chunks = np; info_ptr->unknown_chunks_num += num_unknowns; -#ifdef PNG_FREE_ME_SUPPORTED info_ptr->free_me |= PNG_FREE_UNKN; -#endif } void PNGAPI png_set_unknown_chunk_location(png_structp png_ptr, png_infop info_ptr, int chunk, int location) { if (png_ptr != NULL && info_ptr != NULL && chunk >= 0 && chunk < - (int)info_ptr->unknown_chunks_num) + (int)info_ptr->unknown_chunks_num) info_ptr->unknown_chunks[chunk].location = (png_byte)location; } #endif -#if defined(PNG_1_0_X) || defined(PNG_1_2_X) -#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ - defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) -void PNGAPI -png_permit_empty_plte (png_structp png_ptr, int empty_plte_permitted) -{ - /* This function is deprecated in favor of png_permit_mng_features() - and will be removed from libpng-1.3.0 */ - - png_debug(1, "in png_permit_empty_plte, DEPRECATED."); - - if (png_ptr == NULL) - return; - png_ptr->mng_features_permitted = (png_byte) - ((png_ptr->mng_features_permitted & (~PNG_FLAG_MNG_EMPTY_PLTE)) | - ((empty_plte_permitted & PNG_FLAG_MNG_EMPTY_PLTE))); -} -#endif -#endif -#if defined(PNG_MNG_FEATURES_SUPPORTED) +#ifdef PNG_MNG_FEATURES_SUPPORTED png_uint_32 PNGAPI png_permit_mng_features (png_structp png_ptr, png_uint_32 mng_features) { @@ -1135,7 +1016,7 @@ png_permit_mng_features (png_structp png_ptr, png_uint_32 mng_features) } #endif -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED void PNGAPI png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep chunk_list, int num_chunks) @@ -1161,28 +1042,26 @@ png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep return; old_num_chunks = png_ptr->num_chunk_list; new_list=(png_bytep)png_malloc(png_ptr, - (png_uint_32) - (5*(num_chunks + old_num_chunks))); + (png_size_t) + (5*(num_chunks + old_num_chunks))); if (png_ptr->chunk_list != NULL) { png_memcpy(new_list, png_ptr->chunk_list, - (png_size_t)(5*old_num_chunks)); + (png_size_t)(5*old_num_chunks)); png_free(png_ptr, png_ptr->chunk_list); png_ptr->chunk_list=NULL; } png_memcpy(new_list + 5*old_num_chunks, chunk_list, - (png_size_t)(5*num_chunks)); + (png_size_t)(5*num_chunks)); for (p = new_list + 5*old_num_chunks + 4, i = 0; i<num_chunks; i++, p += 5) *p=(png_byte)keep; png_ptr->num_chunk_list = old_num_chunks + num_chunks; png_ptr->chunk_list = new_list; -#ifdef PNG_FREE_ME_SUPPORTED png_ptr->free_me |= PNG_FREE_LIST; -#endif } #endif -#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) +#ifdef PNG_READ_USER_CHUNKS_SUPPORTED void PNGAPI png_set_read_user_chunk_fn(png_structp png_ptr, png_voidp user_chunk_ptr, png_user_chunk_ptr read_user_chunk_fn) @@ -1197,7 +1076,7 @@ png_set_read_user_chunk_fn(png_structp png_ptr, png_voidp user_chunk_ptr, } #endif -#if defined(PNG_INFO_IMAGE_SUPPORTED) +#ifdef PNG_INFO_IMAGE_SUPPORTED void PNGAPI png_set_rows(png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers) { @@ -1217,12 +1096,12 @@ png_set_rows(png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers) #ifdef PNG_WRITE_SUPPORTED void PNGAPI png_set_compression_buffer_size(png_structp png_ptr, - png_uint_32 size) + png_size_t size) { if (png_ptr == NULL) return; png_free(png_ptr, png_ptr->zbuf); - png_ptr->zbuf_size = (png_size_t)size; + png_ptr->zbuf_size = size; png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, size); png_ptr->zstream.next_out = png_ptr->zbuf; png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; @@ -1237,32 +1116,6 @@ png_set_invalid(png_structp png_ptr, png_infop info_ptr, int mask) } -#ifndef PNG_1_0_X -#ifdef PNG_ASSEMBLER_CODE_SUPPORTED -/* Function was added to libpng 1.2.0 and should always exist by default */ -void PNGAPI -png_set_asm_flags (png_structp png_ptr, png_uint_32 asm_flags) -{ -/* Obsolete as of libpng-1.2.20 and will be removed from libpng-1.4.0 */ - if (png_ptr != NULL) - png_ptr->asm_flags = 0; - asm_flags = asm_flags; /* Quiet the compiler */ -} - -/* This function was added to libpng 1.2.0 */ -void PNGAPI -png_set_mmx_thresholds (png_structp png_ptr, - png_byte mmx_bitdepth_threshold, - png_uint_32 mmx_rowbytes_threshold) -{ -/* Obsolete as of libpng-1.2.20 and will be removed from libpng-1.4.0 */ - if (png_ptr == NULL) - return; - /* Quiet the compiler */ - mmx_bitdepth_threshold = mmx_bitdepth_threshold; - mmx_rowbytes_threshold = mmx_rowbytes_threshold; -} -#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */ #ifdef PNG_SET_USER_LIMITS_SUPPORTED /* This function was added to libpng 1.2.6 */ @@ -1279,7 +1132,32 @@ png_set_user_limits (png_structp png_ptr, png_uint_32 user_width_max, png_ptr->user_width_max = user_width_max; png_ptr->user_height_max = user_height_max; } +/* This function was added to libpng 1.4.0 */ +void PNGAPI +png_set_chunk_cache_max (png_structp png_ptr, + png_uint_32 user_chunk_cache_max) +{ + if (png_ptr == NULL) + return; + png_ptr->user_chunk_cache_max = user_chunk_cache_max; + if (user_chunk_cache_max == 0x7fffffffL) /* Unlimited */ + png_ptr->user_chunk_cache_max = 0; + else + png_ptr->user_chunk_cache_max = user_chunk_cache_max + 1; +} #endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */ -#endif /* ?PNG_1_0_X */ + +#ifdef PNG_BENIGN_ERRORS_SUPPORTED +void PNGAPI +png_set_benign_errors(png_structp png_ptr, int allowed) +{ + png_debug(1, "in png_set_benign_errors"); + + if (allowed) + png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN; + else + png_ptr->flags &= ~PNG_FLAG_BENIGN_ERRORS_WARN; +} +#endif /* PNG_BENIGN_ERRORS_SUPPORTED */ #endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ |