f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync/* pngget.c - retrieval of values from info struct
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync * libpng 1.2.8 - December 3, 2004
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync * For conditions of distribution and use, see copyright notice in png.h
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync * Copyright (c) 1998-2004 Glenn Randers-Pehrson
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#define PNG_INTERNAL
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#include "png.h"
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_valid(png_structp png_ptr, png_infop info_ptr, png_uint_32 flag)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return(info_ptr->valid & flag);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return(0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_rowbytes(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return(info_ptr->rowbytes);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return(0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_INFO_IMAGE_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_bytepp PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_rows(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return(info_ptr->row_pointers);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return(0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifdef PNG_EASY_ACCESS_SUPPORTED
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync/* easy access to info, added in libpng-0.99 */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_image_width(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return info_ptr->width;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_image_height(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return info_ptr->height;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_byte PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_bit_depth(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return info_ptr->bit_depth;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_byte PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_color_type(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return info_ptr->color_type;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_byte PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_filter_type(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return info_ptr->filter_type;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_byte PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_interlace_type(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return info_ptr->interlace_type;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_byte PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_compression_type(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return info_ptr->compression_type;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_x_pixels_per_meter(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_pHYs_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (info_ptr->valid & PNG_INFO_pHYs)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "png_get_x_pixels_per_meter");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else return (info_ptr->x_pixels_per_unit);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_y_pixels_per_meter(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_pHYs_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (info_ptr->valid & PNG_INFO_pHYs)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "png_get_y_pixels_per_meter");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else return (info_ptr->y_pixels_per_unit);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_pixels_per_meter(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_pHYs_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (info_ptr->valid & PNG_INFO_pHYs)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "png_get_pixels_per_meter");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER ||
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync info_ptr->x_pixels_per_unit != info_ptr->y_pixels_per_unit)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else return (info_ptr->x_pixels_per_unit);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifdef PNG_FLOATING_POINT_SUPPORTED
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncfloat PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_pixel_aspect_ratio(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_pHYs_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (info_ptr->valid & PNG_INFO_pHYs)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "png_get_aspect_ratio");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (info_ptr->x_pixels_per_unit == 0)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return ((float)0.0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return ((float)((float)info_ptr->y_pixels_per_unit
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync /(float)info_ptr->x_pixels_per_unit));
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0.0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return ((float)0.0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_int_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_x_offset_microns(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_oFFs_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (info_ptr->valid & PNG_INFO_oFFs)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "png_get_x_offset_microns");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if(info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else return (info_ptr->x_offset);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_int_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_y_offset_microns(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_oFFs_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (info_ptr->valid & PNG_INFO_oFFs)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "png_get_y_offset_microns");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if(info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else return (info_ptr->y_offset);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_int_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_x_offset_pixels(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_oFFs_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (info_ptr->valid & PNG_INFO_oFFs)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "png_get_x_offset_microns");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if(info_ptr->offset_unit_type != PNG_OFFSET_PIXEL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else return (info_ptr->x_offset);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_int_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_y_offset_pixels(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_oFFs_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (info_ptr->valid & PNG_INFO_oFFs)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "png_get_y_offset_microns");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if(info_ptr->offset_unit_type != PNG_OFFSET_PIXEL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else return (info_ptr->y_offset);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_INCH_CONVERSIONS) && defined(PNG_FLOATING_POINT_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_pixels_per_inch(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return ((png_uint_32)((float)png_get_pixels_per_meter(png_ptr, info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *.0254 +.5));
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_x_pixels_per_inch(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return ((png_uint_32)((float)png_get_x_pixels_per_meter(png_ptr, info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *.0254 +.5));
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_y_pixels_per_inch(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return ((png_uint_32)((float)png_get_y_pixels_per_meter(png_ptr, info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *.0254 +.5));
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncfloat PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_x_offset_inches(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return ((float)png_get_x_offset_microns(png_ptr, info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *.00003937);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncfloat PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_y_offset_inches(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return ((float)png_get_y_offset_microns(png_ptr, info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *.00003937);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_pHYs_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_pHYs_dpi(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_uint_32 retval = 0;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs))
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "pHYs");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (res_x != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *res_x = info_ptr->x_pixels_per_unit;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync retval |= PNG_INFO_pHYs;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (res_y != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *res_y = info_ptr->y_pixels_per_unit;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync retval |= PNG_INFO_pHYs;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (unit_type != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *unit_type = (int)info_ptr->phys_unit_type;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync retval |= PNG_INFO_pHYs;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if(*unit_type == 1)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (res_x != NULL) *res_x = (png_uint_32)(*res_x * .0254 + .50);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (res_y != NULL) *res_y = (png_uint_32)(*res_y * .0254 + .50);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (retval);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif /* PNG_pHYs_SUPPORTED */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif /* PNG_INCH_CONVERSIONS && PNG_FLOATING_POINT_SUPPORTED */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync/* png_get_channels really belongs in here, too, but it's been around longer */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif /* PNG_EASY_ACCESS_SUPPORTED */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_byte PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_channels(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return(info_ptr->channels);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_bytep PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_signature(png_structp png_ptr, png_infop info_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return(info_ptr->signature);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (NULL);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_bKGD_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_bKGD(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_color_16p *background)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync && background != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "bKGD");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *background = &(info_ptr->background);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_bKGD);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_cHRM_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifdef PNG_FLOATING_POINT_SUPPORTED
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_cHRM(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync double *white_x, double *white_y, double *red_x, double *red_y,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync double *green_x, double *green_y, double *blue_x, double *blue_y)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM))
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "cHRM");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (white_x != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *white_x = (double)info_ptr->x_white;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (white_y != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *white_y = (double)info_ptr->y_white;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (red_x != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *red_x = (double)info_ptr->x_red;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (red_y != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *red_y = (double)info_ptr->y_red;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (green_x != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *green_x = (double)info_ptr->x_green;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (green_y != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *green_y = (double)info_ptr->y_green;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (blue_x != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *blue_x = (double)info_ptr->x_blue;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (blue_y != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *blue_y = (double)info_ptr->y_blue;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_cHRM);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifdef PNG_FIXED_POINT_SUPPORTED
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_cHRM_fixed(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_fixed_point *white_x, png_fixed_point *white_y, png_fixed_point *red_x,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_fixed_point *red_y, png_fixed_point *green_x, png_fixed_point *green_y,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_fixed_point *blue_x, png_fixed_point *blue_y)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM))
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "cHRM");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (white_x != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *white_x = info_ptr->int_x_white;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (white_y != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *white_y = info_ptr->int_y_white;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (red_x != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *red_x = info_ptr->int_x_red;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (red_y != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *red_y = info_ptr->int_y_red;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (green_x != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *green_x = info_ptr->int_x_green;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (green_y != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *green_y = info_ptr->int_y_green;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (blue_x != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *blue_x = info_ptr->int_x_blue;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (blue_y != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *blue_y = info_ptr->int_y_blue;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_cHRM);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_gAMA_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifdef PNG_FLOATING_POINT_SUPPORTED
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_gAMA(png_structp png_ptr, png_infop info_ptr, double *file_gamma)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync && file_gamma != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "gAMA");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *file_gamma = (double)info_ptr->gamma;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_gAMA);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifdef PNG_FIXED_POINT_SUPPORTED
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_gAMA_fixed(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_fixed_point *int_file_gamma)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync && int_file_gamma != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "gAMA");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *int_file_gamma = info_ptr->int_gamma;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_gAMA);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_sRGB_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_sRGB(png_structp png_ptr, png_infop info_ptr, int *file_srgb_intent)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync && file_srgb_intent != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "sRGB");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *file_srgb_intent = (int)info_ptr->srgb_intent;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_sRGB);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_iCCP_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_iCCP(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_charpp name, int *compression_type,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_charpp profile, png_uint_32 *proflen)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync && name != NULL && profile != NULL && proflen != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "iCCP");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *name = info_ptr->iccp_name;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *profile = info_ptr->iccp_profile;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync /* compression_type is a dummy so the API won't have to change
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if we introduce multiple compression types later. */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *proflen = (int)info_ptr->iccp_proflen;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *compression_type = (int)info_ptr->iccp_compression;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_iCCP);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_sPLT_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_sPLT(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_sPLT_tpp spalettes)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *spalettes = info_ptr->splt_palettes;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return ((png_uint_32)info_ptr->splt_palettes_num);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_hIST_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p *hist)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync && hist != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "hIST");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *hist = info_ptr->hist;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_hIST);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_IHDR(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_uint_32 *width, png_uint_32 *height, int *bit_depth,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync int *color_type, int *interlace_type, int *compression_type,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync int *filter_type)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && width != NULL && height != NULL &&
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync bit_depth != NULL && color_type != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "IHDR");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *width = info_ptr->width;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *height = info_ptr->height;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *bit_depth = info_ptr->bit_depth;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (info_ptr->bit_depth < 1 || info_ptr->bit_depth > 16)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_error(png_ptr, "Invalid bit depth");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *color_type = info_ptr->color_type;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (info_ptr->color_type > 6)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_error(png_ptr, "Invalid color type");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (compression_type != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *compression_type = info_ptr->compression_type;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (filter_type != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *filter_type = info_ptr->filter_type;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (interlace_type != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *interlace_type = info_ptr->interlace_type;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync /* check for potential overflow of rowbytes */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (*width == 0 || *width > PNG_UINT_31_MAX)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_error(png_ptr, "Invalid image width");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (*height == 0 || *height > PNG_UINT_31_MAX)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_error(png_ptr, "Invalid image height");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (info_ptr->width > (PNG_UINT_32_MAX
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync >> 3) /* 8-byte RGBA pixels */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync - 64 /* bigrowbuf hack */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync - 1 /* filter byte */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync - 7*8 /* rounding of width to multiple of 8 pixels */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync - 8) /* extra max_pixel_depth pad */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_warning(png_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync "Width too large for libpng to process image data.");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (1);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_oFFs_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_oFFs(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_int_32 *offset_x, png_int_32 *offset_y, int *unit_type)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync && offset_x != NULL && offset_y != NULL && unit_type != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "oFFs");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *offset_x = info_ptr->x_offset;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *offset_y = info_ptr->y_offset;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *unit_type = (int)info_ptr->offset_unit_type;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_oFFs);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_pCAL_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_pCAL(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_charp *purpose, png_int_32 *X0, png_int_32 *X1, int *type, int *nparams,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_charp *units, png_charpp *params)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync && purpose != NULL && X0 != NULL && X1 != NULL && type != NULL &&
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync nparams != NULL && units != NULL && params != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "pCAL");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *purpose = info_ptr->pcal_purpose;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *X0 = info_ptr->pcal_X0;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *X1 = info_ptr->pcal_X1;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *type = (int)info_ptr->pcal_type;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *nparams = (int)info_ptr->pcal_nparams;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *units = info_ptr->pcal_units;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *params = info_ptr->pcal_params;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_pCAL);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_sCAL_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifdef PNG_FLOATING_POINT_SUPPORTED
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_sCAL(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync int *unit, double *width, double *height)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL &&
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync (info_ptr->valid & PNG_INFO_sCAL))
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *unit = info_ptr->scal_unit;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *width = info_ptr->scal_pixel_width;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *height = info_ptr->scal_pixel_height;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_sCAL);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return(0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifdef PNG_FIXED_POINT_SUPPORTED
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_sCAL_s(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync int *unit, png_charpp width, png_charpp height)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL &&
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync (info_ptr->valid & PNG_INFO_sCAL))
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *unit = info_ptr->scal_unit;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *width = info_ptr->scal_s_width;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *height = info_ptr->scal_s_height;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_sCAL);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return(0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_pHYs_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_pHYs(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_uint_32 retval = 0;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL &&
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync (info_ptr->valid & PNG_INFO_pHYs))
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "pHYs");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (res_x != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *res_x = info_ptr->x_pixels_per_unit;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync retval |= PNG_INFO_pHYs;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (res_y != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *res_y = info_ptr->y_pixels_per_unit;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync retval |= PNG_INFO_pHYs;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (unit_type != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *unit_type = (int)info_ptr->phys_unit_type;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync retval |= PNG_INFO_pHYs;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (retval);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_PLTE(png_structp png_ptr, png_infop info_ptr, png_colorp *palette,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync int *num_palette)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_PLTE)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync && palette != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "PLTE");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *palette = info_ptr->palette;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *num_palette = info_ptr->num_palette;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(3, "num_palette = %d\n", *num_palette);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_PLTE);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_sBIT_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_sBIT(png_structp png_ptr, png_infop info_ptr, png_color_8p *sig_bit)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync && sig_bit != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "sBIT");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *sig_bit = &(info_ptr->sig_bit);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_sBIT);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_TEXT_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_text(png_structp png_ptr, png_infop info_ptr, png_textp *text_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync int *num_text)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n",
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync (png_ptr->chunk_name[0] == '\0' ? "text"
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync : (png_const_charp)png_ptr->chunk_name));
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (text_ptr != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *text_ptr = info_ptr->text;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (num_text != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *num_text = info_ptr->num_text;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return ((png_uint_32)info_ptr->num_text);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (num_text != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *num_text = 0;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return(0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_tIME_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_tIME(png_structp png_ptr, png_infop info_ptr, png_timep *mod_time)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync && mod_time != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "tIME");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *mod_time = &(info_ptr->mod_time);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (PNG_INFO_tIME);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_tRNS_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_tRNS(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_bytep *trans, int *num_trans, png_color_16p *trans_values)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_uint_32 retval = 0;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS))
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_debug1(1, "in %s retrieval function\n", "tRNS");
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (trans != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *trans = info_ptr->trans;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync retval |= PNG_INFO_tRNS;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (trans_values != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *trans_values = &(info_ptr->trans_values);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync else /* if (info_ptr->color_type != PNG_COLOR_TYPE_PALETTE) */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (trans_values != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *trans_values = &(info_ptr->trans_values);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync retval |= PNG_INFO_tRNS;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if(trans != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *trans = NULL;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if(num_trans != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *num_trans = info_ptr->num_trans;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync retval |= PNG_INFO_tRNS;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (retval);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_unknown_chunks(png_structp png_ptr, png_infop info_ptr,
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_unknown_chunkpp unknowns)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (png_ptr != NULL && info_ptr != NULL && unknowns != NULL)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *unknowns = info_ptr->unknown_chunks;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return ((png_uint_32)info_ptr->unknown_chunks_num);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_byte PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_rgb_to_gray_status (png_structp png_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (png_byte)(png_ptr? png_ptr->rgb_to_gray_status : 0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_USER_CHUNKS_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_voidp PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_user_chunk_ptr(png_structp png_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (png_ptr? png_ptr->user_chunk_ptr : NULL);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifdef PNG_WRITE_SUPPORTED
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_compression_buffer_size(png_structp png_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (png_uint_32)(png_ptr? png_ptr->zbuf_size : 0L);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifndef PNG_1_0_X
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync/* this function was added to libpng 1.2.0 and should exist by default */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_asm_flags (png_structp png_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (png_uint_32)(png_ptr? png_ptr->asm_flags : 0L);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync/* this function was added to libpng 1.2.0 and should exist by default */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_asm_flagmask (int flag_select)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_uint_32 settable_asm_flags = 0;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (flag_select & PNG_SELECT_READ)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync settable_asm_flags |=
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_READ_COMBINE_ROW |
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_READ_INTERLACE |
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_READ_FILTER_SUB |
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_READ_FILTER_UP |
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_READ_FILTER_AVG |
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync /* no non-MMX flags yet */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if 0
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync /* GRR: no write-flags yet, either, but someday... */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (flag_select & PNG_SELECT_WRITE)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync settable_asm_flags |=
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_WRITE_ [whatever] ;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif /* 0 */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return settable_asm_flags; /* _theoretically_ settable capabilities only */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync /* GRR: could add this: && defined(PNG_MMX_CODE_SUPPORTED) */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync/* this function was added to libpng 1.2.0 */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_mmx_flagmask (int flag_select, int *compilerID)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync png_uint_32 settable_mmx_flags = 0;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (flag_select & PNG_SELECT_READ)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync settable_mmx_flags |=
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_READ_COMBINE_ROW |
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_READ_INTERLACE |
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_READ_FILTER_SUB |
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_READ_FILTER_UP |
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_READ_FILTER_AVG |
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#if 0
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync /* GRR: no MMX write support yet, but someday... */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (flag_select & PNG_SELECT_WRITE)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync settable_mmx_flags |=
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync PNG_ASM_FLAG_MMX_WRITE_ [whatever] ;
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif /* 0 */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync if (compilerID != NULL) {
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifdef PNG_USE_PNGVCRD
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *compilerID = 1; /* MSVC */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifdef PNG_USE_PNGGCCRD
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *compilerID = 2; /* gcc/gas */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#else
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync *compilerID = -1; /* unknown (i.e., no asm/MMX code compiled) */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync }
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return settable_mmx_flags; /* _theoretically_ settable capabilities only */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync/* this function was added to libpng 1.2.0 */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_byte PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_mmx_bitdepth_threshold (png_structp png_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (png_byte)(png_ptr? png_ptr->mmx_bitdepth_threshold : 0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync/* this function was added to libpng 1.2.0 */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_mmx_rowbytes_threshold (png_structp png_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (png_uint_32)(png_ptr? png_ptr->mmx_rowbytes_threshold : 0L);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#ifdef PNG_SET_USER_LIMITS_SUPPORTED
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync/* these functions were added to libpng 1.2.6 */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_user_width_max (png_structp png_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (png_ptr? png_ptr->user_width_max : 0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_uint_32 PNGAPI
f9a51917495bc8ba8b60632219652a7b122c1190vboxsyncpng_get_user_height_max (png_structp png_ptr)
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync{
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync return (png_ptr? png_ptr->user_height_max : 0);
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync}
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync
f9a51917495bc8ba8b60632219652a7b122c1190vboxsync#endif /* ?PNG_1_0_X */