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Diffstat (limited to 'src/thirdparty/pngdib/pngdib.h')
| -rw-r--r-- | src/thirdparty/pngdib/pngdib.h | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/src/thirdparty/pngdib/pngdib.h b/src/thirdparty/pngdib/pngdib.h new file mode 100644 index 000000000..e492e4e73 --- /dev/null +++ b/src/thirdparty/pngdib/pngdib.h @@ -0,0 +1,293 @@ +// pngdib.h
+
+#ifndef PNGDIB_H_INCLUDED
+#define PNGDIB_H_INCLUDED
+
+#include <tchar.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef _UNICODE
+// the V2 compatibility layer isn't UNICODE compatible
+#define PNGDIB_V2COMPATIBLE 0
+#endif
+
+// If you don't need to be compatible with PNGDIB v1.x and v2.x,
+// you can define this to 0 and save a few bytes.
+#ifndef PNGDIB_V2COMPATIBLE
+#define PNGDIB_V2COMPATIBLE 1
+#endif
+
+#define PNGDIB_HEADER_VERSION 30002
+
+
+#define PNGDIB_DEFAULT_SCREEN_GAMMA 2.20000
+#define PNGDIB_DEFAULT_FILE_GAMMA 0.45455
+
+
+#define PNGDIB_DECL __stdcall
+
+#define PNGDIB_EXT
+
+
+// error codes returned by pngdib_*_run()
+
+#define PNGD_E_SUCCESS 0
+#define PNGD_E_ERROR 1 // unspecified error
+#define PNGD_E_VERSION 2 // struct size problem
+#define PNGD_E_NOMEM 3 // could not alloc memory
+#define PNGD_E_UNSUPP 4 // unsupported image type
+#define PNGD_E_LIBPNG 5 // libpng error (corrupt PNG?)
+#define PNGD_E_BADBMP 6 // corrupt or unsupported DIB
+#define PNGD_E_BADPNG 7 // corrupt or unsupported PNG
+#define PNGD_E_READ 8 // couldn't read PNG file
+#define PNGD_E_WRITE 9 // couldn't write PNG file
+
+#if (PNGDIB_V2COMPATIBLE) || defined(PNGDIB_INTERNALS)
+
+struct PNGD_COLOR_struct {
+ unsigned char red, green, blue, reserved;
+};
+
+#endif
+
+
+#if PNGDIB_V2COMPATIBLE
+
+typedef struct PNGD_D2PINFO_struct {
+ DWORD structsize; // sizeof(PNGD_D2PINFO)
+ DWORD flags;
+#define PNGD_INTERLACED 0x00000001
+#define PNGD_NO_GAMMA_LABEL 0x00000002
+#define PNGD_DIB_ALPHA32 0x00000010
+
+ char* pngfn; // PNG filename to write
+
+ LPBITMAPINFOHEADER lpdib;
+ int dibsize; // can be 0
+
+ VOID* lpbits; // can be NULL
+ int bitssize; // can be 0
+
+ char* software; // (NULL==don't include)
+// added in v2.0
+ char* errmsg; // user can set to null or 100-char buffer
+} PNGD_D2PINFO;
+
+
+typedef struct PNGD_IMAGEINFO_struct {
+ DWORD structsize; // sizeof(PNGD_IMAGEINFO)
+ DWORD flags;
+
+} PNGD_IMAGEINFO;
+
+typedef struct PNGD_P2DINFO_struct {
+ DWORD structsize; // sizeof(PNGD_P2DINFO)
+
+ DWORD flags; // combination of below:
+#define PNGD_USE_BKGD 0x00000001
+#define PNGD_USE_CUSTOM_BG 0x00000002
+#define PNGD_GAMMA_CORRECTION 0x00000004
+#define PNGD_USE_HEAPALLOC 0x00000008
+//#define PNGD_DIB_ALPHA32 0x00000010 already defined above
+
+#define PNGD_BG_RETURNED 0x00010000 // return value only
+#define PNGD_RES_RETURNED 0x00020000 // set if xres,yres,res_units are valid
+#define PNGD_GAMMA_RETURNED 0x00040000 // set if file_gamma is valid
+
+ char* pngfn; // PNG filename to read
+
+ LPBITMAPINFOHEADER lpdib; // return value only
+ int dibsize; // return value only
+ int palette_offs; // return value only
+ int bits_offs; // return value only
+ RGBQUAD* palette; // return value only
+ int palette_colors; // return value only
+ VOID* lpbits; // return value only
+// added in v2.0 (size=48)
+ struct PNGD_COLOR_struct bgcolor; // IN OUT
+ char* errmsg; // user can set to null or 100-char buffer
+// added in v2.1 (size=88)
+ int color_type;
+ int bits_per_sample;
+ int bits_per_pixel;
+ int interlace;
+ int res_x,res_y;
+ int res_units;
+ int reserved1;
+ double file_gamma;
+// added in v2.2 (size=96)
+ HANDLE heap;
+ int reserved2;
+
+} PNGD_P2DINFO;
+
+int read_png_to_dib(PNGD_P2DINFO *p2dinfo);
+int write_dib_to_png(PNGD_D2PINFO *d2pinfo);
+
+#endif // PNGDIB_V2COMPATIBLE
+
+
+// public definitions
+
+typedef void* (PNGDIB_DECL *pngdib_malloc_cb_type)(void *userdata, int memblksize);
+typedef void (PNGDIB_DECL *pngdib_free_cb_type)(void *userdata, void *memblk);
+typedef void* (PNGDIB_DECL *pngdib_realloc_cb_type)(void *userdata, void *memblk, int memblksize);
+typedef void (PNGDIB_DECL *pngdib_pngptrhook_cb_type)(void *userdata, void *pngptr);
+
+struct pngdib_common_struct;
+typedef struct pngdib_common_struct PNGDIB;
+
+
+#define PNGD_ST_D2P 1
+#define PNGD_ST_P2D 2
+
+
+#ifdef PNGDIB_INTERNALS
+
+// definitions for internal library use only
+
+#define PNGDIB_ERRMSG_MAX 200
+
+
+struct pngdib_common_struct {
+ int structtype;
+ void *userdata;
+ TCHAR *errmsg;
+ pngdib_malloc_cb_type malloc_function;
+ pngdib_free_cb_type free_function;
+ pngdib_realloc_cb_type realloc_function;
+ pngdib_pngptrhook_cb_type pngptrhook_function;
+ int dib_alpha32;
+};
+
+struct d2p_struct {
+ struct pngdib_common_struct common;
+
+ const BITMAPINFOHEADER* pdib;
+ int dibsize;
+ const void* pbits;
+ int bitssize;
+ int interlaced;
+ TCHAR* output_filename;
+ char* software_id_string;
+ int file_gamma_valid;
+ double file_gamma;
+};
+
+struct p2d_struct {
+ struct pngdib_common_struct common;
+
+ int input_method; // 0=filename, 1=memory
+ TCHAR* input_filename;
+ unsigned char* input_memblk;
+ int input_memblk_size;
+ int input_memblk_curpos;
+
+ int use_file_bg_flag;
+ int use_custom_bg_flag;
+ struct PNGD_COLOR_struct bgcolor;
+ int gamma_correction; // should we gamma correct (using screen_gamma)?
+ double screen_gamma;
+
+ BITMAPINFOHEADER* pdib;
+ int dibsize;
+ int palette_offs;
+ int bits_offs;
+ int bitssize;
+ RGBQUAD* palette;
+ int palette_colors;
+ void* pbits;
+ int color_type;
+ int bits_per_sample;
+ int bits_per_pixel;
+ int interlace;
+ int res_x,res_y;
+ int res_units;
+ int res_valid; // are res_x, res_y, res_units valid?
+ double file_gamma;
+ int gamma_returned; // set if we know the file gamma
+ int bgcolor_returned;
+};
+
+#endif // PNGDIB_INTERNALS
+
+///////////// d2p functions
+
+#define pngdib_d2p_init() _pngdib_init(PNGD_ST_D2P,PNGDIB_HEADER_VERSION)
+
+PNGDIB_EXT int PNGDIB_DECL pngdib_d2p_set_dib(PNGDIB *d2p,
+ const BITMAPINFOHEADER* pdib, int dibsize,
+ const void* pbits, int bitssize);
+
+PNGDIB_EXT void PNGDIB_DECL pngdib_d2p_set_interlace(PNGDIB *d2p, int interlaced);
+PNGDIB_EXT int PNGDIB_DECL pngdib_d2p_set_png_filename(PNGDIB *d2p, const TCHAR *fn);
+PNGDIB_EXT int PNGDIB_DECL pngdib_d2p_set_software_id(PNGDIB *d2p, const TCHAR *s);
+PNGDIB_EXT void PNGDIB_DECL pngdib_d2p_set_gamma_label(PNGDIB *d2p, int flag, double file_gamma);
+
+PNGDIB_EXT int PNGDIB_DECL pngdib_d2p_run(PNGDIB *d2p);
+
+////////////
+
+//////////// p2d functions
+
+#define pngdib_p2d_init() _pngdib_init(PNGD_ST_P2D,PNGDIB_HEADER_VERSION)
+
+PNGDIB_EXT int PNGDIB_DECL pngdib_p2d_set_png_filename(PNGDIB *p2d, const TCHAR *fn);
+PNGDIB_EXT void PNGDIB_DECL pngdib_p2d_set_png_memblk(PNGDIB *p2d, const void *mem, int memsize);
+
+PNGDIB_EXT void PNGDIB_DECL pngdib_p2d_set_use_file_bg(PNGDIB *p2d, int flag);
+PNGDIB_EXT void PNGDIB_DECL pngdib_p2d_set_custom_bg(PNGDIB *p2d, unsigned char r,
+ unsigned char g, unsigned char b);
+PNGDIB_EXT void PNGDIB_DECL pngdib_p2d_set_gamma_correction(PNGDIB *p2d, int flag, double screen_gamma);
+
+PNGDIB_EXT int PNGDIB_DECL pngdib_p2d_run(PNGDIB *p2d);
+
+PNGDIB_EXT int PNGDIB_DECL pngdib_p2d_get_dib(PNGDIB *p2d, BITMAPINFOHEADER **ppdib, int *pdibsize);
+PNGDIB_EXT int PNGDIB_DECL pngdib_p2d_get_dibbits(PNGDIB *p2d, void **ppbits, int *pbitsoffset, int *pbitssize);
+PNGDIB_EXT int PNGDIB_DECL pngdib_p2d_get_palette(PNGDIB *p2d, RGBQUAD **ppal, int *ppaloffset, int *ppalnumcolors);
+
+PNGDIB_EXT int PNGDIB_DECL pngdib_p2d_get_colortype(PNGDIB *p2d);
+PNGDIB_EXT int PNGDIB_DECL pngdib_p2d_get_bitspersample(PNGDIB *p2d);
+PNGDIB_EXT int PNGDIB_DECL pngdib_p2d_get_bitsperpixel(PNGDIB *p2d);
+PNGDIB_EXT int PNGDIB_DECL pngdib_p2d_get_samplesperpixel(PNGDIB *p2d);
+PNGDIB_EXT int PNGDIB_DECL pngdib_p2d_get_interlace(PNGDIB *p2d);
+PNGDIB_EXT int PNGDIB_DECL pngdib_p2d_get_density(PNGDIB *p2d, int *pres_x, int *pres_y, int *pres_units);
+PNGDIB_EXT int PNGDIB_DECL pngdib_p2d_get_file_gamma(PNGDIB *p2d, double *pgamma);
+PNGDIB_EXT int PNGDIB_DECL pngdib_p2d_get_bgcolor(PNGDIB *p2d, unsigned char *pr, unsigned char *pg, unsigned char *pb);
+
+PNGDIB_EXT void PNGDIB_DECL pngdib_p2d_free_dib(PNGDIB *p2d, BITMAPINFOHEADER *pdib);
+
+//////////// common functions
+
+PNGDIB_EXT PNGDIB* PNGDIB_DECL _pngdib_init(int structtype, int caller_header_vers);
+
+PNGDIB_EXT int PNGDIB_DECL pngdib_done(PNGDIB *xx);
+
+PNGDIB_EXT void PNGDIB_DECL pngdib_setcallback_malloc(PNGDIB *xx,
+ pngdib_malloc_cb_type mallocfunc,
+ pngdib_free_cb_type freefunc,
+ pngdib_realloc_cb_type reallocfunc);
+
+PNGDIB_EXT void PNGDIB_DECL pngdib_setcallback_pngptrhook(PNGDIB *xx,
+ pngdib_pngptrhook_cb_type pngptrhookfn);
+
+PNGDIB_EXT void PNGDIB_DECL pngdib_set_userdata(PNGDIB *xx, void *userdata);
+PNGDIB_EXT void* PNGDIB_DECL pngdib_get_userdata(PNGDIB *xx);
+PNGDIB_EXT TCHAR* PNGDIB_DECL pngdib_get_error_msg(PNGDIB *xx);
+
+PNGDIB_EXT TCHAR* PNGDIB_DECL pngdib_get_version_string(void);
+PNGDIB_EXT int PNGDIB_DECL pngdib_get_version(void);
+
+PNGDIB_EXT void PNGDIB_DECL pngdib_set_dibalpha32(PNGDIB *xx, int flag);
+
+////////////
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // PNGDIB_H_INCLUDED
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