| author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
| Wed, 18 Aug 2010 10:37:55 +0300 | |
| changeset 33 | 3e2da88830cd |
| parent 30 | 5dc02b23752f |
| permissions | -rw-r--r-- |
| 0 | 1 |
|
2 |
/* pngget.c - retrieval of values from info struct |
|
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* |
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5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
4 |
* Last changed in libpng 1.4.0 [January 3, 2010] |
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5dc02b23752f
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
5 |
* Copyright (c) 1998-2010 Glenn Randers-Pehrson |
| 0 | 6 |
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) |
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) |
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* |
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* This code is released under the libpng license. |
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* For conditions of distribution and use, see the disclaimer |
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* and license in png.h |
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* |
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*/ |
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||
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
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#define PNG_NO_PEDANTIC_WARNINGS |
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#include "png.h" |
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#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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#include "pngpriv.h" |
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png_uint_32 PNGAPI |
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png_get_valid(png_structp png_ptr, png_infop info_ptr, png_uint_32 flag) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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return(info_ptr->valid & flag); |
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else |
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return(0); |
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} |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
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30 |
png_size_t PNGAPI |
| 0 | 31 |
png_get_rowbytes(png_structp png_ptr, png_infop info_ptr) |
32 |
{
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if (png_ptr != NULL && info_ptr != NULL) |
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return(info_ptr->rowbytes); |
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else |
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return(0); |
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} |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
40 |
#ifdef PNG_INFO_IMAGE_SUPPORTED |
| 0 | 41 |
png_bytepp PNGAPI |
42 |
png_get_rows(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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return(info_ptr->row_pointers); |
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else |
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return(0); |
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} |
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#endif |
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||
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#ifdef PNG_EASY_ACCESS_SUPPORTED |
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/* Easy access to info, added in libpng-0.99 */ |
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png_uint_32 PNGAPI |
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png_get_image_width(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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return info_ptr->width; |
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||
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return (0); |
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} |
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||
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png_uint_32 PNGAPI |
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png_get_image_height(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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return info_ptr->height; |
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||
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return (0); |
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} |
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png_byte PNGAPI |
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png_get_bit_depth(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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return info_ptr->bit_depth; |
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||
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return (0); |
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} |
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png_byte PNGAPI |
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png_get_color_type(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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return info_ptr->color_type; |
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||
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return (0); |
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} |
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png_byte PNGAPI |
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png_get_filter_type(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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return info_ptr->filter_type; |
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return (0); |
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} |
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png_byte PNGAPI |
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png_get_interlace_type(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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return info_ptr->interlace_type; |
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return (0); |
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} |
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png_byte PNGAPI |
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png_get_compression_type(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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return info_ptr->compression_type; |
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return (0); |
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} |
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png_uint_32 PNGAPI |
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png_get_x_pixels_per_meter(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
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#ifdef PNG_pHYs_SUPPORTED |
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if (info_ptr->valid & PNG_INFO_pHYs) |
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{
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png_debug1(1, "in %s retrieval function", "png_get_x_pixels_per_meter"); |
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if (info_ptr->phys_unit_type != PNG_RESOLUTION_METER) |
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return (0); |
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else |
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return (info_ptr->x_pixels_per_unit); |
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} |
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#else |
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return (0); |
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#endif |
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return (0); |
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} |
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png_uint_32 PNGAPI |
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png_get_y_pixels_per_meter(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
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#ifdef PNG_pHYs_SUPPORTED |
| 0 | 143 |
if (info_ptr->valid & PNG_INFO_pHYs) |
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{
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png_debug1(1, "in %s retrieval function", "png_get_y_pixels_per_meter"); |
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if (info_ptr->phys_unit_type != PNG_RESOLUTION_METER) |
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return (0); |
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else |
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return (info_ptr->y_pixels_per_unit); |
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} |
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#else |
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return (0); |
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#endif |
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return (0); |
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} |
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png_uint_32 PNGAPI |
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png_get_pixels_per_meter(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
163 |
#ifdef PNG_pHYs_SUPPORTED |
| 0 | 164 |
if (info_ptr->valid & PNG_INFO_pHYs) |
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{
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png_debug1(1, "in %s retrieval function", "png_get_pixels_per_meter"); |
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167 |
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if (info_ptr->phys_unit_type != PNG_RESOLUTION_METER || |
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info_ptr->x_pixels_per_unit != info_ptr->y_pixels_per_unit) |
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return (0); |
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||
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else |
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return (info_ptr->x_pixels_per_unit); |
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} |
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#else |
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return (0); |
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#endif |
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return (0); |
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} |
|
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#ifdef PNG_FLOATING_POINT_SUPPORTED |
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float PNGAPI |
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png_get_pixel_aspect_ratio(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
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#ifdef PNG_pHYs_SUPPORTED |
| 0 | 187 |
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if (info_ptr->valid & PNG_INFO_pHYs) |
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{
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png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio"); |
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5dc02b23752f
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
191 |
|
| 0 | 192 |
if (info_ptr->x_pixels_per_unit == 0) |
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return ((float)0.0); |
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30
5dc02b23752f
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
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| 0 | 195 |
else |
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return ((float)((float)info_ptr->y_pixels_per_unit |
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/(float)info_ptr->x_pixels_per_unit)); |
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} |
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#else |
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return (0.0); |
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#endif |
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return ((float)0.0); |
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} |
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#endif |
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png_int_32 PNGAPI |
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png_get_x_offset_microns(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
210 |
#ifdef PNG_oFFs_SUPPORTED |
| 0 | 211 |
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if (info_ptr->valid & PNG_INFO_oFFs) |
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{
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png_debug1(1, "in %s retrieval function", "png_get_x_offset_microns"); |
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if (info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER) |
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return (0); |
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||
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else |
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return (info_ptr->x_offset); |
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} |
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#else |
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return (0); |
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#endif |
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return (0); |
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} |
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png_int_32 PNGAPI |
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png_get_y_offset_microns(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
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#ifdef PNG_oFFs_SUPPORTED |
| 0 | 234 |
if (info_ptr->valid & PNG_INFO_oFFs) |
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{
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png_debug1(1, "in %s retrieval function", "png_get_y_offset_microns"); |
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||
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if (info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER) |
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return (0); |
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else |
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return (info_ptr->y_offset); |
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} |
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#else |
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return (0); |
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#endif |
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return (0); |
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} |
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png_int_32 PNGAPI |
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png_get_x_offset_pixels(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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||
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30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
255 |
#ifdef PNG_oFFs_SUPPORTED |
| 0 | 256 |
if (info_ptr->valid & PNG_INFO_oFFs) |
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{
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png_debug1(1, "in %s retrieval function", "png_get_x_offset_microns"); |
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||
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if (info_ptr->offset_unit_type != PNG_OFFSET_PIXEL) |
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return (0); |
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||
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else |
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return (info_ptr->x_offset); |
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} |
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#else |
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return (0); |
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#endif |
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return (0); |
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} |
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||
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png_int_32 PNGAPI |
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png_get_y_offset_pixels(png_structp png_ptr, png_infop info_ptr) |
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{
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if (png_ptr != NULL && info_ptr != NULL) |
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||
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30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
277 |
#ifdef PNG_oFFs_SUPPORTED |
| 0 | 278 |
if (info_ptr->valid & PNG_INFO_oFFs) |
279 |
{
|
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png_debug1(1, "in %s retrieval function", "png_get_y_offset_microns"); |
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||
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if (info_ptr->offset_unit_type != PNG_OFFSET_PIXEL) |
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return (0); |
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||
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else |
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return (info_ptr->y_offset); |
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} |
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#else |
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return (0); |
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#endif |
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return (0); |
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} |
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||
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#if defined(PNG_INCH_CONVERSIONS) && defined(PNG_FLOATING_POINT_SUPPORTED) |
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png_uint_32 PNGAPI |
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png_get_pixels_per_inch(png_structp png_ptr, png_infop info_ptr) |
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{
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return ((png_uint_32)((float)png_get_pixels_per_meter(png_ptr, info_ptr) |
|
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*.0254 +.5)); |
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} |
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||
302 |
png_uint_32 PNGAPI |
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png_get_x_pixels_per_inch(png_structp png_ptr, png_infop info_ptr) |
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{
|
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return ((png_uint_32)((float)png_get_x_pixels_per_meter(png_ptr, info_ptr) |
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*.0254 +.5)); |
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} |
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308 |
||
309 |
png_uint_32 PNGAPI |
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png_get_y_pixels_per_inch(png_structp png_ptr, png_infop info_ptr) |
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{
|
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return ((png_uint_32)((float)png_get_y_pixels_per_meter(png_ptr, info_ptr) |
|
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*.0254 +.5)); |
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314 |
} |
|
315 |
||
316 |
float PNGAPI |
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png_get_x_offset_inches(png_structp png_ptr, png_infop info_ptr) |
|
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{
|
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return ((float)png_get_x_offset_microns(png_ptr, info_ptr) |
|
320 |
*.00003937); |
|
321 |
} |
|
322 |
||
323 |
float PNGAPI |
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png_get_y_offset_inches(png_structp png_ptr, png_infop info_ptr) |
|
325 |
{
|
|
326 |
return ((float)png_get_y_offset_microns(png_ptr, info_ptr) |
|
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*.00003937); |
|
328 |
} |
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||
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30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
330 |
#ifdef PNG_pHYs_SUPPORTED |
| 0 | 331 |
png_uint_32 PNGAPI |
332 |
png_get_pHYs_dpi(png_structp png_ptr, png_infop info_ptr, |
|
333 |
png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type) |
|
334 |
{
|
|
335 |
png_uint_32 retval = 0; |
|
336 |
||
337 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) |
|
338 |
{
|
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339 |
png_debug1(1, "in %s retrieval function", "pHYs"); |
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30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
340 |
|
| 0 | 341 |
if (res_x != NULL) |
342 |
{
|
|
343 |
*res_x = info_ptr->x_pixels_per_unit; |
|
344 |
retval |= PNG_INFO_pHYs; |
|
345 |
} |
|
346 |
if (res_y != NULL) |
|
347 |
{
|
|
348 |
*res_y = info_ptr->y_pixels_per_unit; |
|
349 |
retval |= PNG_INFO_pHYs; |
|
350 |
} |
|
351 |
if (unit_type != NULL) |
|
352 |
{
|
|
353 |
*unit_type = (int)info_ptr->phys_unit_type; |
|
354 |
retval |= PNG_INFO_pHYs; |
|
355 |
if (*unit_type == 1) |
|
356 |
{
|
|
357 |
if (res_x != NULL) *res_x = (png_uint_32)(*res_x * .0254 + .50); |
|
358 |
if (res_y != NULL) *res_y = (png_uint_32)(*res_y * .0254 + .50); |
|
359 |
} |
|
360 |
} |
|
361 |
} |
|
362 |
return (retval); |
|
363 |
} |
|
364 |
#endif /* PNG_pHYs_SUPPORTED */ |
|
365 |
#endif /* PNG_INCH_CONVERSIONS && PNG_FLOATING_POINT_SUPPORTED */ |
|
366 |
||
367 |
/* png_get_channels really belongs in here, too, but it's been around longer */ |
|
368 |
||
369 |
#endif /* PNG_EASY_ACCESS_SUPPORTED */ |
|
370 |
||
371 |
png_byte PNGAPI |
|
372 |
png_get_channels(png_structp png_ptr, png_infop info_ptr) |
|
373 |
{
|
|
374 |
if (png_ptr != NULL && info_ptr != NULL) |
|
375 |
return(info_ptr->channels); |
|
376 |
else |
|
377 |
return (0); |
|
378 |
} |
|
379 |
||
380 |
png_bytep PNGAPI |
|
381 |
png_get_signature(png_structp png_ptr, png_infop info_ptr) |
|
382 |
{
|
|
383 |
if (png_ptr != NULL && info_ptr != NULL) |
|
384 |
return(info_ptr->signature); |
|
385 |
else |
|
386 |
return (NULL); |
|
387 |
} |
|
388 |
||
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5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
389 |
#ifdef PNG_bKGD_SUPPORTED |
| 0 | 390 |
png_uint_32 PNGAPI |
391 |
png_get_bKGD(png_structp png_ptr, png_infop info_ptr, |
|
392 |
png_color_16p *background) |
|
393 |
{
|
|
394 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD) |
|
395 |
&& background != NULL) |
|
396 |
{
|
|
397 |
png_debug1(1, "in %s retrieval function", "bKGD"); |
|
|
30
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parents:
0
diff
changeset
|
398 |
|
| 0 | 399 |
*background = &(info_ptr->background); |
400 |
return (PNG_INFO_bKGD); |
|
401 |
} |
|
402 |
return (0); |
|
403 |
} |
|
404 |
#endif |
|
405 |
||
|
30
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parents:
0
diff
changeset
|
406 |
#ifdef PNG_cHRM_SUPPORTED |
| 0 | 407 |
#ifdef PNG_FLOATING_POINT_SUPPORTED |
408 |
png_uint_32 PNGAPI |
|
409 |
png_get_cHRM(png_structp png_ptr, png_infop info_ptr, |
|
410 |
double *white_x, double *white_y, double *red_x, double *red_y, |
|
411 |
double *green_x, double *green_y, double *blue_x, double *blue_y) |
|
412 |
{
|
|
413 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM)) |
|
414 |
{
|
|
415 |
png_debug1(1, "in %s retrieval function", "cHRM"); |
|
|
30
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
416 |
|
| 0 | 417 |
if (white_x != NULL) |
418 |
*white_x = (double)info_ptr->x_white; |
|
419 |
if (white_y != NULL) |
|
420 |
*white_y = (double)info_ptr->y_white; |
|
421 |
if (red_x != NULL) |
|
422 |
*red_x = (double)info_ptr->x_red; |
|
423 |
if (red_y != NULL) |
|
424 |
*red_y = (double)info_ptr->y_red; |
|
425 |
if (green_x != NULL) |
|
426 |
*green_x = (double)info_ptr->x_green; |
|
427 |
if (green_y != NULL) |
|
428 |
*green_y = (double)info_ptr->y_green; |
|
429 |
if (blue_x != NULL) |
|
430 |
*blue_x = (double)info_ptr->x_blue; |
|
431 |
if (blue_y != NULL) |
|
432 |
*blue_y = (double)info_ptr->y_blue; |
|
433 |
return (PNG_INFO_cHRM); |
|
434 |
} |
|
435 |
return (0); |
|
436 |
} |
|
437 |
#endif |
|
438 |
#ifdef PNG_FIXED_POINT_SUPPORTED |
|
439 |
png_uint_32 PNGAPI |
|
440 |
png_get_cHRM_fixed(png_structp png_ptr, png_infop info_ptr, |
|
441 |
png_fixed_point *white_x, png_fixed_point *white_y, png_fixed_point *red_x, |
|
442 |
png_fixed_point *red_y, png_fixed_point *green_x, png_fixed_point *green_y, |
|
443 |
png_fixed_point *blue_x, png_fixed_point *blue_y) |
|
444 |
{
|
|
|
30
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
445 |
png_debug1(1, "in %s retrieval function", "cHRM"); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
446 |
|
| 0 | 447 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM)) |
448 |
{
|
|
449 |
if (white_x != NULL) |
|
450 |
*white_x = info_ptr->int_x_white; |
|
451 |
if (white_y != NULL) |
|
452 |
*white_y = info_ptr->int_y_white; |
|
453 |
if (red_x != NULL) |
|
454 |
*red_x = info_ptr->int_x_red; |
|
455 |
if (red_y != NULL) |
|
456 |
*red_y = info_ptr->int_y_red; |
|
457 |
if (green_x != NULL) |
|
458 |
*green_x = info_ptr->int_x_green; |
|
459 |
if (green_y != NULL) |
|
460 |
*green_y = info_ptr->int_y_green; |
|
461 |
if (blue_x != NULL) |
|
462 |
*blue_x = info_ptr->int_x_blue; |
|
463 |
if (blue_y != NULL) |
|
464 |
*blue_y = info_ptr->int_y_blue; |
|
465 |
return (PNG_INFO_cHRM); |
|
466 |
} |
|
467 |
return (0); |
|
468 |
} |
|
469 |
#endif |
|
470 |
#endif |
|
471 |
||
|
30
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
472 |
#ifdef PNG_gAMA_SUPPORTED |
| 0 | 473 |
#ifdef PNG_FLOATING_POINT_SUPPORTED |
474 |
png_uint_32 PNGAPI |
|
475 |
png_get_gAMA(png_structp png_ptr, png_infop info_ptr, double *file_gamma) |
|
476 |
{
|
|
|
30
5dc02b23752f
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
477 |
png_debug1(1, "in %s retrieval function", "gAMA"); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
478 |
|
| 0 | 479 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA) |
480 |
&& file_gamma != NULL) |
|
481 |
{
|
|
482 |
*file_gamma = (double)info_ptr->gamma; |
|
483 |
return (PNG_INFO_gAMA); |
|
484 |
} |
|
485 |
return (0); |
|
486 |
} |
|
487 |
#endif |
|
488 |
#ifdef PNG_FIXED_POINT_SUPPORTED |
|
489 |
png_uint_32 PNGAPI |
|
490 |
png_get_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, |
|
491 |
png_fixed_point *int_file_gamma) |
|
492 |
{
|
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
493 |
png_debug1(1, "in %s retrieval function", "gAMA"); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
494 |
|
| 0 | 495 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA) |
496 |
&& int_file_gamma != NULL) |
|
497 |
{
|
|
498 |
*int_file_gamma = info_ptr->int_gamma; |
|
499 |
return (PNG_INFO_gAMA); |
|
500 |
} |
|
501 |
return (0); |
|
502 |
} |
|
503 |
#endif |
|
504 |
#endif |
|
505 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
506 |
#ifdef PNG_sRGB_SUPPORTED |
| 0 | 507 |
png_uint_32 PNGAPI |
508 |
png_get_sRGB(png_structp png_ptr, png_infop info_ptr, int *file_srgb_intent) |
|
509 |
{
|
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
510 |
png_debug1(1, "in %s retrieval function", "sRGB"); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
511 |
|
| 0 | 512 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB) |
513 |
&& file_srgb_intent != NULL) |
|
514 |
{
|
|
515 |
*file_srgb_intent = (int)info_ptr->srgb_intent; |
|
516 |
return (PNG_INFO_sRGB); |
|
517 |
} |
|
518 |
return (0); |
|
519 |
} |
|
520 |
#endif |
|
521 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
522 |
#ifdef PNG_iCCP_SUPPORTED |
| 0 | 523 |
png_uint_32 PNGAPI |
524 |
png_get_iCCP(png_structp png_ptr, png_infop info_ptr, |
|
525 |
png_charpp name, int *compression_type, |
|
526 |
png_charpp profile, png_uint_32 *proflen) |
|
527 |
{
|
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
528 |
png_debug1(1, "in %s retrieval function", "iCCP"); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
529 |
|
| 0 | 530 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP) |
531 |
&& name != NULL && profile != NULL && proflen != NULL) |
|
532 |
{
|
|
533 |
*name = info_ptr->iccp_name; |
|
534 |
*profile = info_ptr->iccp_profile; |
|
535 |
/* Compression_type is a dummy so the API won't have to change |
|
536 |
* if we introduce multiple compression types later. |
|
537 |
*/ |
|
538 |
*proflen = (int)info_ptr->iccp_proflen; |
|
539 |
*compression_type = (int)info_ptr->iccp_compression; |
|
540 |
return (PNG_INFO_iCCP); |
|
541 |
} |
|
542 |
return (0); |
|
543 |
} |
|
544 |
#endif |
|
545 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
546 |
#ifdef PNG_sPLT_SUPPORTED |
| 0 | 547 |
png_uint_32 PNGAPI |
548 |
png_get_sPLT(png_structp png_ptr, png_infop info_ptr, |
|
549 |
png_sPLT_tpp spalettes) |
|
550 |
{
|
|
551 |
if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL) |
|
552 |
{
|
|
553 |
*spalettes = info_ptr->splt_palettes; |
|
554 |
return ((png_uint_32)info_ptr->splt_palettes_num); |
|
555 |
} |
|
556 |
return (0); |
|
557 |
} |
|
558 |
#endif |
|
559 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
560 |
#ifdef PNG_hIST_SUPPORTED |
| 0 | 561 |
png_uint_32 PNGAPI |
562 |
png_get_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p *hist) |
|
563 |
{
|
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
564 |
png_debug1(1, "in %s retrieval function", "hIST"); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
565 |
|
| 0 | 566 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST) |
567 |
&& hist != NULL) |
|
568 |
{
|
|
569 |
*hist = info_ptr->hist; |
|
570 |
return (PNG_INFO_hIST); |
|
571 |
} |
|
572 |
return (0); |
|
573 |
} |
|
574 |
#endif |
|
575 |
||
576 |
png_uint_32 PNGAPI |
|
577 |
png_get_IHDR(png_structp png_ptr, png_infop info_ptr, |
|
578 |
png_uint_32 *width, png_uint_32 *height, int *bit_depth, |
|
579 |
int *color_type, int *interlace_type, int *compression_type, |
|
580 |
int *filter_type) |
|
581 |
||
582 |
{
|
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
583 |
png_debug1(1, "in %s retrieval function", "IHDR"); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
584 |
|
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
585 |
if (png_ptr == NULL || info_ptr == NULL || width == NULL || |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
586 |
height == NULL || bit_depth == NULL || color_type == NULL) |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
587 |
return (0); |
| 0 | 588 |
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
589 |
*width = info_ptr->width; |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
590 |
*height = info_ptr->height; |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
591 |
*bit_depth = info_ptr->bit_depth; |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
592 |
*color_type = info_ptr->color_type; |
| 0 | 593 |
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
594 |
if (compression_type != NULL) |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
595 |
*compression_type = info_ptr->compression_type; |
| 0 | 596 |
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
597 |
if (filter_type != NULL) |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
598 |
*filter_type = info_ptr->filter_type; |
| 0 | 599 |
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
600 |
if (interlace_type != NULL) |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
601 |
*interlace_type = info_ptr->interlace_type; |
| 0 | 602 |
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
603 |
/* This is redundant if we can be sure that the info_ptr values were all |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
604 |
* assigned in png_set_IHDR(). We do the check anyhow in case an |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
605 |
* application has ignored our advice not to mess with the members |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
606 |
* of info_ptr directly. |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
607 |
*/ |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
608 |
png_check_IHDR (png_ptr, info_ptr->width, info_ptr->height, |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
609 |
info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type, |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
610 |
info_ptr->compression_type, info_ptr->filter_type); |
| 0 | 611 |
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
612 |
return (1); |
| 0 | 613 |
} |
614 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
615 |
#ifdef PNG_oFFs_SUPPORTED |
| 0 | 616 |
png_uint_32 PNGAPI |
617 |
png_get_oFFs(png_structp png_ptr, png_infop info_ptr, |
|
618 |
png_int_32 *offset_x, png_int_32 *offset_y, int *unit_type) |
|
619 |
{
|
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
620 |
png_debug1(1, "in %s retrieval function", "oFFs"); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
621 |
|
| 0 | 622 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs) |
623 |
&& offset_x != NULL && offset_y != NULL && unit_type != NULL) |
|
624 |
{
|
|
625 |
*offset_x = info_ptr->x_offset; |
|
626 |
*offset_y = info_ptr->y_offset; |
|
627 |
*unit_type = (int)info_ptr->offset_unit_type; |
|
628 |
return (PNG_INFO_oFFs); |
|
629 |
} |
|
630 |
return (0); |
|
631 |
} |
|
632 |
#endif |
|
633 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
634 |
#ifdef PNG_pCAL_SUPPORTED |
| 0 | 635 |
png_uint_32 PNGAPI |
636 |
png_get_pCAL(png_structp png_ptr, png_infop info_ptr, |
|
637 |
png_charp *purpose, png_int_32 *X0, png_int_32 *X1, int *type, int *nparams, |
|
638 |
png_charp *units, png_charpp *params) |
|
639 |
{
|
|
|
30
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
640 |
png_debug1(1, "in %s retrieval function", "pCAL"); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
641 |
|
| 0 | 642 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL) |
643 |
&& purpose != NULL && X0 != NULL && X1 != NULL && type != NULL && |
|
644 |
nparams != NULL && units != NULL && params != NULL) |
|
645 |
{
|
|
646 |
*purpose = info_ptr->pcal_purpose; |
|
647 |
*X0 = info_ptr->pcal_X0; |
|
648 |
*X1 = info_ptr->pcal_X1; |
|
649 |
*type = (int)info_ptr->pcal_type; |
|
650 |
*nparams = (int)info_ptr->pcal_nparams; |
|
651 |
*units = info_ptr->pcal_units; |
|
652 |
*params = info_ptr->pcal_params; |
|
653 |
return (PNG_INFO_pCAL); |
|
654 |
} |
|
655 |
return (0); |
|
656 |
} |
|
657 |
#endif |
|
658 |
||
|
30
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
659 |
#ifdef PNG_sCAL_SUPPORTED |
| 0 | 660 |
#ifdef PNG_FLOATING_POINT_SUPPORTED |
661 |
png_uint_32 PNGAPI |
|
662 |
png_get_sCAL(png_structp png_ptr, png_infop info_ptr, |
|
663 |
int *unit, double *width, double *height) |
|
664 |
{
|
|
665 |
if (png_ptr != NULL && info_ptr != NULL && |
|
666 |
(info_ptr->valid & PNG_INFO_sCAL)) |
|
667 |
{
|
|
668 |
*unit = info_ptr->scal_unit; |
|
669 |
*width = info_ptr->scal_pixel_width; |
|
670 |
*height = info_ptr->scal_pixel_height; |
|
671 |
return (PNG_INFO_sCAL); |
|
672 |
} |
|
673 |
return(0); |
|
674 |
} |
|
675 |
#else |
|
676 |
#ifdef PNG_FIXED_POINT_SUPPORTED |
|
677 |
png_uint_32 PNGAPI |
|
678 |
png_get_sCAL_s(png_structp png_ptr, png_infop info_ptr, |
|
679 |
int *unit, png_charpp width, png_charpp height) |
|
680 |
{
|
|
681 |
if (png_ptr != NULL && info_ptr != NULL && |
|
682 |
(info_ptr->valid & PNG_INFO_sCAL)) |
|
683 |
{
|
|
684 |
*unit = info_ptr->scal_unit; |
|
685 |
*width = info_ptr->scal_s_width; |
|
686 |
*height = info_ptr->scal_s_height; |
|
687 |
return (PNG_INFO_sCAL); |
|
688 |
} |
|
689 |
return(0); |
|
690 |
} |
|
691 |
#endif |
|
692 |
#endif |
|
693 |
#endif |
|
694 |
||
|
30
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
695 |
#ifdef PNG_pHYs_SUPPORTED |
| 0 | 696 |
png_uint_32 PNGAPI |
697 |
png_get_pHYs(png_structp png_ptr, png_infop info_ptr, |
|
698 |
png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type) |
|
699 |
{
|
|
700 |
png_uint_32 retval = 0; |
|
701 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
702 |
png_debug1(1, "in %s retrieval function", "pHYs"); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
703 |
|
| 0 | 704 |
if (png_ptr != NULL && info_ptr != NULL && |
705 |
(info_ptr->valid & PNG_INFO_pHYs)) |
|
706 |
{
|
|
707 |
if (res_x != NULL) |
|
708 |
{
|
|
709 |
*res_x = info_ptr->x_pixels_per_unit; |
|
710 |
retval |= PNG_INFO_pHYs; |
|
711 |
} |
|
712 |
||
713 |
if (res_y != NULL) |
|
714 |
{
|
|
715 |
*res_y = info_ptr->y_pixels_per_unit; |
|
716 |
retval |= PNG_INFO_pHYs; |
|
717 |
} |
|
718 |
||
719 |
if (unit_type != NULL) |
|
720 |
{
|
|
721 |
*unit_type = (int)info_ptr->phys_unit_type; |
|
722 |
retval |= PNG_INFO_pHYs; |
|
723 |
} |
|
724 |
} |
|
725 |
return (retval); |
|
726 |
} |
|
727 |
#endif |
|
728 |
||
729 |
png_uint_32 PNGAPI |
|
730 |
png_get_PLTE(png_structp png_ptr, png_infop info_ptr, png_colorp *palette, |
|
731 |
int *num_palette) |
|
732 |
{
|
|
|
30
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Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
733 |
png_debug1(1, "in %s retrieval function", "PLTE"); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
734 |
|
| 0 | 735 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_PLTE) |
736 |
&& palette != NULL) |
|
737 |
{
|
|
738 |
*palette = info_ptr->palette; |
|
739 |
*num_palette = info_ptr->num_palette; |
|
740 |
png_debug1(3, "num_palette = %d", *num_palette); |
|
741 |
return (PNG_INFO_PLTE); |
|
742 |
} |
|
743 |
return (0); |
|
744 |
} |
|
745 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
746 |
#ifdef PNG_sBIT_SUPPORTED |
| 0 | 747 |
png_uint_32 PNGAPI |
748 |
png_get_sBIT(png_structp png_ptr, png_infop info_ptr, png_color_8p *sig_bit) |
|
749 |
{
|
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
750 |
png_debug1(1, "in %s retrieval function", "sBIT"); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
751 |
|
| 0 | 752 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT) |
753 |
&& sig_bit != NULL) |
|
754 |
{
|
|
755 |
*sig_bit = &(info_ptr->sig_bit); |
|
756 |
return (PNG_INFO_sBIT); |
|
757 |
} |
|
758 |
return (0); |
|
759 |
} |
|
760 |
#endif |
|
761 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
762 |
#ifdef PNG_TEXT_SUPPORTED |
| 0 | 763 |
png_uint_32 PNGAPI |
764 |
png_get_text(png_structp png_ptr, png_infop info_ptr, png_textp *text_ptr, |
|
765 |
int *num_text) |
|
766 |
{
|
|
767 |
if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0) |
|
768 |
{
|
|
769 |
png_debug1(1, "in %s retrieval function", |
|
770 |
(png_ptr->chunk_name[0] == '\0' ? "text" |
|
771 |
: (png_const_charp)png_ptr->chunk_name)); |
|
772 |
||
773 |
if (text_ptr != NULL) |
|
774 |
*text_ptr = info_ptr->text; |
|
775 |
||
776 |
if (num_text != NULL) |
|
777 |
*num_text = info_ptr->num_text; |
|
778 |
||
779 |
return ((png_uint_32)info_ptr->num_text); |
|
780 |
} |
|
781 |
if (num_text != NULL) |
|
782 |
*num_text = 0; |
|
783 |
return(0); |
|
784 |
} |
|
785 |
#endif |
|
786 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
787 |
#ifdef PNG_tIME_SUPPORTED |
| 0 | 788 |
png_uint_32 PNGAPI |
789 |
png_get_tIME(png_structp png_ptr, png_infop info_ptr, png_timep *mod_time) |
|
790 |
{
|
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
791 |
png_debug1(1, "in %s retrieval function", "tIME"); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
792 |
|
| 0 | 793 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME) |
794 |
&& mod_time != NULL) |
|
795 |
{
|
|
796 |
*mod_time = &(info_ptr->mod_time); |
|
797 |
return (PNG_INFO_tIME); |
|
798 |
} |
|
799 |
return (0); |
|
800 |
} |
|
801 |
#endif |
|
802 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
803 |
#ifdef PNG_tRNS_SUPPORTED |
| 0 | 804 |
png_uint_32 PNGAPI |
805 |
png_get_tRNS(png_structp png_ptr, png_infop info_ptr, |
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
806 |
png_bytep *trans_alpha, int *num_trans, png_color_16p *trans_color) |
| 0 | 807 |
{
|
808 |
png_uint_32 retval = 0; |
|
809 |
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS)) |
|
810 |
{
|
|
811 |
png_debug1(1, "in %s retrieval function", "tRNS"); |
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
812 |
|
| 0 | 813 |
if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) |
814 |
{
|
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
815 |
if (trans_alpha != NULL) |
| 0 | 816 |
{
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
817 |
*trans_alpha = info_ptr->trans_alpha; |
| 0 | 818 |
retval |= PNG_INFO_tRNS; |
819 |
} |
|
820 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
821 |
if (trans_color != NULL) |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
822 |
*trans_color = &(info_ptr->trans_color); |
| 0 | 823 |
} |
824 |
else /* if (info_ptr->color_type != PNG_COLOR_TYPE_PALETTE) */ |
|
825 |
{
|
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
826 |
if (trans_color != NULL) |
| 0 | 827 |
{
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
828 |
*trans_color = &(info_ptr->trans_color); |
| 0 | 829 |
retval |= PNG_INFO_tRNS; |
830 |
} |
|
831 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
832 |
if (trans_alpha != NULL) |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
833 |
*trans_alpha = NULL; |
| 0 | 834 |
} |
835 |
if (num_trans != NULL) |
|
836 |
{
|
|
837 |
*num_trans = info_ptr->num_trans; |
|
838 |
retval |= PNG_INFO_tRNS; |
|
839 |
} |
|
840 |
} |
|
841 |
return (retval); |
|
842 |
} |
|
843 |
#endif |
|
844 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
845 |
#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED |
| 0 | 846 |
png_uint_32 PNGAPI |
847 |
png_get_unknown_chunks(png_structp png_ptr, png_infop info_ptr, |
|
848 |
png_unknown_chunkpp unknowns) |
|
849 |
{
|
|
850 |
if (png_ptr != NULL && info_ptr != NULL && unknowns != NULL) |
|
851 |
{
|
|
852 |
*unknowns = info_ptr->unknown_chunks; |
|
853 |
return ((png_uint_32)info_ptr->unknown_chunks_num); |
|
854 |
} |
|
855 |
return (0); |
|
856 |
} |
|
857 |
#endif |
|
858 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
859 |
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED |
| 0 | 860 |
png_byte PNGAPI |
861 |
png_get_rgb_to_gray_status (png_structp png_ptr) |
|
862 |
{
|
|
863 |
return (png_byte)(png_ptr? png_ptr->rgb_to_gray_status : 0); |
|
864 |
} |
|
865 |
#endif |
|
866 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
867 |
#ifdef PNG_USER_CHUNKS_SUPPORTED |
| 0 | 868 |
png_voidp PNGAPI |
869 |
png_get_user_chunk_ptr(png_structp png_ptr) |
|
870 |
{
|
|
871 |
return (png_ptr? png_ptr->user_chunk_ptr : NULL); |
|
872 |
} |
|
873 |
#endif |
|
874 |
||
875 |
#ifdef PNG_WRITE_SUPPORTED |
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
876 |
png_size_t PNGAPI |
| 0 | 877 |
png_get_compression_buffer_size(png_structp png_ptr) |
878 |
{
|
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
879 |
return (png_ptr ? png_ptr->zbuf_size : 0L); |
| 0 | 880 |
} |
881 |
#endif |
|
882 |
||
883 |
||
884 |
#ifdef PNG_SET_USER_LIMITS_SUPPORTED |
|
885 |
/* These functions were added to libpng 1.2.6 */ |
|
886 |
png_uint_32 PNGAPI |
|
887 |
png_get_user_width_max (png_structp png_ptr) |
|
888 |
{
|
|
889 |
return (png_ptr? png_ptr->user_width_max : 0); |
|
890 |
} |
|
891 |
png_uint_32 PNGAPI |
|
892 |
png_get_user_height_max (png_structp png_ptr) |
|
893 |
{
|
|
894 |
return (png_ptr? png_ptr->user_height_max : 0); |
|
895 |
} |
|
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
896 |
/* This function was added to libpng 1.4.0 */ |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
897 |
png_uint_32 PNGAPI |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
898 |
png_get_chunk_cache_max (png_structp png_ptr) |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
899 |
{
|
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
900 |
return (png_ptr? png_ptr->user_chunk_cache_max? 0x7fffffffL : |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
901 |
png_ptr->user_chunk_cache_max - 1 : 0); |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
902 |
} |
| 0 | 903 |
#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */ |
904 |
||
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
905 |
#ifdef PNG_IO_STATE_SUPPORTED |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
906 |
png_uint_32 PNGAPI |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
907 |
png_get_io_state (png_structp png_ptr) |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
908 |
{
|
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
909 |
return png_ptr->io_state; |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
910 |
} |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
911 |
|
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
912 |
png_bytep PNGAPI |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
913 |
png_get_io_chunk_name (png_structp png_ptr) |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
914 |
{
|
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5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
915 |
return png_ptr->chunk_name; |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
916 |
} |
|
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
917 |
#endif /* ?PNG_IO_STATE_SUPPORTED */ |
| 0 | 918 |
|
919 |
#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ |