diff options
Diffstat (limited to 'pngset.c')
| -rw-r--r-- | pngset.c | 191 |
1 files changed, 75 insertions, 116 deletions
@@ -1,7 +1,7 @@ /* pngset.c - storage of image information into info struct * - * Last changed in libpng 1.2.30 [August 15, 2008] + * Last changed in libpng 1.2.34 [December 11, 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) @@ -21,7 +21,7 @@ void PNGAPI png_set_bKGD(png_structp png_ptr, png_infop info_ptr, png_color_16p background) { - png_debug1(1, "in %s storage function\n", "bKGD"); + png_debug1(1, "in %s storage function", "bKGD"); if (png_ptr == NULL || info_ptr == NULL) return; @@ -37,34 +37,9 @@ png_set_cHRM(png_structp png_ptr, png_infop info_ptr, double white_x, double white_y, double red_x, double red_y, double green_x, double green_y, double blue_x, double blue_y) { - png_debug1(1, "in %s storage function\n", "cHRM"); + png_debug1(1, "in %s storage function", "cHRM"); if (png_ptr == NULL || info_ptr == NULL) return; - if (!(white_x || white_y || red_x || red_y || green_x || green_y || - blue_x || blue_y)) - { - png_warning(png_ptr, - "Ignoring attempt to set all-zero chromaticity values"); - return; - } - if (white_x < 0.0 || white_y < 0.0 || - red_x < 0.0 || red_y < 0.0 || - green_x < 0.0 || green_y < 0.0 || - blue_x < 0.0 || blue_y < 0.0) - { - png_warning(png_ptr, - "Ignoring attempt to set negative chromaticity value"); - return; - } - if (white_x > 21474.83 || white_y > 21474.83 || - red_x > 21474.83 || red_y > 21474.83 || - green_x > 21474.83 || green_y > 21474.83 || - blue_x > 21474.83 || blue_y > 21474.83) - { - png_warning(png_ptr, - "Ignoring attempt to set chromaticity value exceeding 21474.83"); - return; - } info_ptr->x_white = (float)white_x; info_ptr->y_white = (float)white_y; @@ -94,61 +69,38 @@ png_set_cHRM_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point red_y, png_fixed_point green_x, png_fixed_point green_y, png_fixed_point blue_x, png_fixed_point blue_y) { - png_debug1(1, "in %s storage function\n", "cHRM"); + png_debug1(1, "in %s storage function", "cHRM fixed"); if (png_ptr == NULL || info_ptr == NULL) return; - if (!(white_x || white_y || red_x || red_y || green_x || green_y || - blue_x || blue_y)) - { - png_warning(png_ptr, - "Ignoring attempt to set all-zero chromaticity values"); - return; - } - if (white_x < 0 || white_y < 0 || - red_x < 0 || red_y < 0 || - green_x < 0 || green_y < 0 || - blue_x < 0 || blue_y < 0) - { - png_warning(png_ptr, - "Ignoring attempt to set negative chromaticity value"); - return; - } - if (white_x > (png_fixed_point) PNG_UINT_31_MAX || - white_y > (png_fixed_point) PNG_UINT_31_MAX || - red_x > (png_fixed_point) PNG_UINT_31_MAX || - red_y > (png_fixed_point) PNG_UINT_31_MAX || - green_x > (png_fixed_point) PNG_UINT_31_MAX || - green_y > (png_fixed_point) PNG_UINT_31_MAX || - blue_x > (png_fixed_point) PNG_UINT_31_MAX || - blue_y > (png_fixed_point) PNG_UINT_31_MAX ) +#if !defined(PNG_NO_CHECK_cHRM) + if (png_check_cHRM_fixed(png_ptr, + white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y)) +#endif { - png_warning(png_ptr, - "Ignoring attempt to set chromaticity value exceeding 21474.83"); - return; - } - info_ptr->int_x_white = white_x; - info_ptr->int_y_white = white_y; - info_ptr->int_x_red = red_x; - info_ptr->int_y_red = red_y; - info_ptr->int_x_green = green_x; - info_ptr->int_y_green = green_y; - info_ptr->int_x_blue = blue_x; - info_ptr->int_y_blue = blue_y; + info_ptr->int_x_white = white_x; + info_ptr->int_y_white = white_y; + info_ptr->int_x_red = red_x; + info_ptr->int_y_red = red_y; + info_ptr->int_x_green = green_x; + info_ptr->int_y_green = green_y; + info_ptr->int_x_blue = blue_x; + info_ptr->int_y_blue = blue_y; #ifdef PNG_FLOATING_POINT_SUPPORTED - info_ptr->x_white = (float)(white_x/100000.); - info_ptr->y_white = (float)(white_y/100000.); - info_ptr->x_red = (float)( red_x/100000.); - info_ptr->y_red = (float)( red_y/100000.); - info_ptr->x_green = (float)(green_x/100000.); - info_ptr->y_green = (float)(green_y/100000.); - info_ptr->x_blue = (float)( blue_x/100000.); - info_ptr->y_blue = (float)( blue_y/100000.); -#endif - info_ptr->valid |= PNG_INFO_cHRM; + info_ptr->x_white = (float)(white_x/100000.); + info_ptr->y_white = (float)(white_y/100000.); + info_ptr->x_red = (float)( red_x/100000.); + info_ptr->y_red = (float)( red_y/100000.); + info_ptr->x_green = (float)(green_x/100000.); + info_ptr->y_green = (float)(green_y/100000.); + info_ptr->x_blue = (float)( blue_x/100000.); + info_ptr->y_blue = (float)( blue_y/100000.); +#endif + info_ptr->valid |= PNG_INFO_cHRM; + } } -#endif -#endif +#endif /* PNG_FIXED_POINT_SUPPORTED */ +#endif /* PNG_cHRM_SUPPORTED */ #if defined(PNG_gAMA_SUPPORTED) #ifdef PNG_FLOATING_POINT_SUPPORTED @@ -156,7 +108,7 @@ void PNGAPI png_set_gAMA(png_structp png_ptr, png_infop info_ptr, double file_gamma) { double gamma; - png_debug1(1, "in %s storage function\n", "gAMA"); + png_debug1(1, "in %s storage function", "gAMA"); if (png_ptr == NULL || info_ptr == NULL) return; @@ -183,7 +135,7 @@ png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point { png_fixed_point gamma; - png_debug1(1, "in %s storage function\n", "gAMA"); + png_debug1(1, "in %s storage function", "gAMA"); if (png_ptr == NULL || info_ptr == NULL) return; @@ -220,7 +172,7 @@ png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist) { int i; - png_debug1(1, "in %s storage function\n", "hIST"); + png_debug1(1, "in %s storage function", "hIST"); if (png_ptr == NULL || info_ptr == NULL) return; if (info_ptr->num_palette == 0 || info_ptr->num_palette @@ -263,7 +215,7 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr, int color_type, int interlace_type, int compression_type, int filter_type) { - png_debug1(1, "in %s storage function\n", "IHDR"); + png_debug1(1, "in %s storage function", "IHDR"); if (png_ptr == NULL || info_ptr == NULL) return; @@ -370,7 +322,7 @@ 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) { - png_debug1(1, "in %s storage function\n", "oFFs"); + png_debug1(1, "in %s storage function", "oFFs"); if (png_ptr == NULL || info_ptr == NULL) return; @@ -390,12 +342,12 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length; int i; - png_debug1(1, "in %s storage function\n", "pCAL"); + png_debug1(1, "in %s storage function", "pCAL"); if (png_ptr == NULL || info_ptr == NULL) return; length = png_strlen(purpose) + 1; - png_debug1(3, "allocating purpose for info (%lu bytes)\n", + png_debug1(3, "allocating purpose for info (%lu bytes)", (unsigned long)length); info_ptr->pcal_purpose = (png_charp)png_malloc_warn(png_ptr, length); if (info_ptr->pcal_purpose == NULL) @@ -405,14 +357,14 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr, } png_memcpy(info_ptr->pcal_purpose, purpose, (png_size_t)length); - png_debug(3, "storing X0, X1, type, and nparams in info\n"); + png_debug(3, "storing X0, X1, type, and nparams in info"); info_ptr->pcal_X0 = X0; info_ptr->pcal_X1 = X1; info_ptr->pcal_type = (png_byte)type; info_ptr->pcal_nparams = (png_byte)nparams; length = png_strlen(units) + 1; - png_debug1(3, "allocating units for info (%lu bytes)\n", + png_debug1(3, "allocating units for info (%lu bytes)", (unsigned long)length); info_ptr->pcal_units = (png_charp)png_malloc_warn(png_ptr, length); if (info_ptr->pcal_units == NULL) @@ -435,7 +387,7 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr, for (i = 0; i < nparams; i++) { length = png_strlen(params[i]) + 1; - png_debug2(3, "allocating parameter %d for info (%lu bytes)\n", i, + png_debug2(3, "allocating parameter %d for info (%lu bytes)", i, (unsigned long)length); info_ptr->pcal_params[i] = (png_charp)png_malloc_warn(png_ptr, length); if (info_ptr->pcal_params[i] == NULL) @@ -459,7 +411,7 @@ void PNGAPI png_set_sCAL(png_structp png_ptr, png_infop info_ptr, int unit, double width, double height) { - png_debug1(1, "in %s storage function\n", "sCAL"); + png_debug1(1, "in %s storage function", "sCAL"); if (png_ptr == NULL || info_ptr == NULL) return; @@ -477,14 +429,14 @@ png_set_sCAL_s(png_structp png_ptr, png_infop info_ptr, { png_uint_32 length; - png_debug1(1, "in %s storage function\n", "sCAL"); + png_debug1(1, "in %s storage function", "sCAL"); if (png_ptr == NULL || info_ptr == NULL) return; info_ptr->scal_unit = (png_byte)unit; length = png_strlen(swidth) + 1; - png_debug1(3, "allocating unit for info (%u bytes)\n", + png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)length); info_ptr->scal_s_width = (png_charp)png_malloc_warn(png_ptr, length); if (info_ptr->scal_s_width == NULL) @@ -496,7 +448,7 @@ png_set_sCAL_s(png_structp png_ptr, png_infop info_ptr, png_memcpy(info_ptr->scal_s_width, swidth, (png_size_t)length); length = png_strlen(sheight) + 1; - png_debug1(3, "allocating unit for info (%u bytes)\n", + png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)length); info_ptr->scal_s_height = (png_charp)png_malloc_warn(png_ptr, length); if (info_ptr->scal_s_height == NULL) @@ -522,7 +474,7 @@ 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) { - png_debug1(1, "in %s storage function\n", "pHYs"); + png_debug1(1, "in %s storage function", "pHYs"); if (png_ptr == NULL || info_ptr == NULL) return; @@ -538,7 +490,7 @@ png_set_PLTE(png_structp png_ptr, png_infop info_ptr, png_colorp palette, int num_palette) { - png_debug1(1, "in %s storage function\n", "PLTE"); + png_debug1(1, "in %s storage function", "PLTE"); if (png_ptr == NULL || info_ptr == NULL) return; @@ -587,7 +539,7 @@ void PNGAPI png_set_sBIT(png_structp png_ptr, png_infop info_ptr, png_color_8p sig_bit) { - png_debug1(1, "in %s storage function\n", "sBIT"); + png_debug1(1, "in %s storage function", "sBIT"); if (png_ptr == NULL || info_ptr == NULL) return; @@ -600,7 +552,7 @@ png_set_sBIT(png_structp png_ptr, png_infop info_ptr, void PNGAPI png_set_sRGB(png_structp png_ptr, png_infop info_ptr, int intent) { - png_debug1(1, "in %s storage function\n", "sRGB"); + png_debug1(1, "in %s storage function", "sRGB"); if (png_ptr == NULL || info_ptr == NULL) return; @@ -624,12 +576,10 @@ png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr, #ifdef PNG_FLOATING_POINT_SUPPORTED float white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y; #endif -#ifdef PNG_FIXED_POINT_SUPPORTED png_fixed_point 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 -#endif - png_debug1(1, "in %s storage function\n", "sRGB_gAMA_and_cHRM"); + png_debug1(1, "in %s storage function", "sRGB_gAMA_and_cHRM"); if (png_ptr == NULL || info_ptr == NULL) return; @@ -647,7 +597,6 @@ png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr, #endif #if defined(PNG_cHRM_SUPPORTED) -#ifdef PNG_FIXED_POINT_SUPPORTED int_white_x = 31270L; int_white_y = 32900L; int_red_x = 64000L; @@ -657,10 +606,6 @@ png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr, int_blue_x = 15000L; int_blue_y = 6000L; - 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 white_x = (float).3127; white_y = (float).3290; @@ -670,11 +615,25 @@ png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr, green_y = (float).60; blue_x = (float).15; blue_y = (float).06; +#endif - png_set_cHRM(png_ptr, info_ptr, - white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y); +#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); +#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); #endif + } +#endif /* cHRM */ } #endif @@ -689,7 +648,7 @@ png_set_iCCP(png_structp png_ptr, png_infop info_ptr, png_charp new_iccp_profile; png_uint_32 length; - png_debug1(1, "in %s storage function\n", "iCCP"); + png_debug1(1, "in %s storage function", "iCCP"); if (png_ptr == NULL || info_ptr == NULL || name == NULL || profile == NULL) return; @@ -743,7 +702,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, { int i; - png_debug1(1, "in %s storage function\n", (png_ptr->chunk_name[0] == '\0' ? + png_debug1(1, "in %s storage function", (png_ptr->chunk_name[0] == '\0' ? "text" : (png_const_charp)png_ptr->chunk_name)); if (png_ptr == NULL || info_ptr == NULL || num_text == 0) @@ -785,7 +744,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, info_ptr->free_me |= PNG_FREE_TEXT; #endif } - png_debug1(3, "allocated %d entries for info_ptr->text\n", + png_debug1(3, "allocated %d entries for info_ptr->text", info_ptr->max_text); } for (i = 0; i < num_text; i++) @@ -845,7 +804,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, (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\n", + png_debug2(2, "Allocated %lu bytes at %x in png_set_text", (png_uint_32) (key_len + lang_len + lang_key_len + text_length + 4), (int)textp->key); @@ -893,7 +852,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, #endif } info_ptr->num_text++; - png_debug1(3, "transferred text chunk %d\n", info_ptr->num_text); + png_debug1(3, "transferred text chunk %d", info_ptr->num_text); } return(0); } @@ -903,7 +862,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, void PNGAPI png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time) { - png_debug1(1, "in %s storage function\n", "tIME"); + png_debug1(1, "in %s storage function", "tIME"); if (png_ptr == NULL || info_ptr == NULL || (png_ptr->mode & PNG_WROTE_tIME)) return; @@ -918,7 +877,7 @@ 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_debug1(1, "in %s storage function\n", "tRNS"); + png_debug1(1, "in %s storage function", "tRNS"); if (png_ptr == NULL || info_ptr == NULL) return; @@ -1123,7 +1082,7 @@ 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.\n"); + png_debug(1, "in png_permit_empty_plte, DEPRECATED."); if (png_ptr == NULL) return; png_ptr->mng_features_permitted = (png_byte) @@ -1137,7 +1096,7 @@ png_permit_empty_plte (png_structp png_ptr, int empty_plte_permitted) png_uint_32 PNGAPI png_permit_mng_features (png_structp png_ptr, png_uint_32 mng_features) { - png_debug(1, "in png_permit_mng_features\n"); + png_debug(1, "in png_permit_mng_features"); if (png_ptr == NULL) return (png_uint_32)0; png_ptr->mng_features_permitted = @@ -1198,7 +1157,7 @@ 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) { - png_debug(1, "in png_set_read_user_chunk_fn\n"); + png_debug(1, "in png_set_read_user_chunk_fn"); if (png_ptr == NULL) return; png_ptr->read_user_chunk_fn = read_user_chunk_fn; @@ -1210,7 +1169,7 @@ png_set_read_user_chunk_fn(png_structp png_ptr, png_voidp user_chunk_ptr, void PNGAPI png_set_rows(png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers) { - png_debug1(1, "in %s storage function\n", "rows"); + png_debug1(1, "in %s storage function", "rows"); if (png_ptr == NULL || info_ptr == NULL) return; |