SDL_bmp.c File Reference

#include "SDL_config.h"
#include "SDL_video.h"
#include "SDL_endian.h"
#include "SDL_pixels_c.h"

Go to the source code of this file.

Macros
#define	BI_BITFIELDS   3
#define	BI_RGB   0
#define	BI_RLE4   2
#define	BI_RLE8   1
#define	SAVE_32BIT_BMP

Functions
static void	CorrectAlphaChannel (SDL_Surface *surface)
SDL_Surface *	SDL_LoadBMP_RW (SDL_RWops *src, int freesrc)
int	SDL_SaveBMP_RW (SDL_Surface *saveme, SDL_RWops *dst, int freedst)

Macro Definition Documentation

#define BI_BITFIELDS   3

Definition at line 46 of file SDL_bmp.c.

Referenced by SDL_LoadBMP_RW().

#define BI_RGB   0

Definition at line 43 of file SDL_bmp.c.

Referenced by SDL_LoadBMP_RW(), and SDL_SaveBMP_RW().

#define BI_RLE4   2

Definition at line 45 of file SDL_bmp.c.

#define BI_RLE8   1

Definition at line 44 of file SDL_bmp.c.

#define SAVE_32BIT_BMP

Definition at line 39 of file SDL_bmp.c.

Function Documentation

static void CorrectAlphaChannel ( SDL_Surface *  surface )

static

Definition at line 50 of file SDL_bmp.c.

References SDL_Surface::h, SDL_Surface::pitch, SDL_Surface::pixels, SDL_ALPHA_OPAQUE, SDL_FALSE, and SDL_TRUE.

Referenced by SDL_LoadBMP_RW().

SDL_Surface* SDL_LoadBMP_RW	(	SDL_RWops *	src,
		int	freesrc
	)

Load a surface from a seekable SDL data stream (memory or file).

If freesrc is non-zero, the stream will be closed after being read.

The new surface should be freed with SDL_FreeSurface().

Returns

the new surface, or NULL if there was an error.

Definition at line 80 of file SDL_bmp.c.

References SDL_Color::a, SDL_Color::b, BI_BITFIELDS, BI_RGB, bits, SDL_Palette::colors, CorrectAlphaChannel(), SDL_Surface::format, SDL_Color::g, SDL_Surface::h, i, int, SDL_Palette::ncolors, NULL, pad, SDL_Surface::pitch, SDL_Surface::pixels, SDL_Color::r, RW_SEEK_SET, SDL_ALPHA_OPAQUE, SDL_ClearError(), SDL_CreateRGBSurface(), SDL_EFREAD, SDL_EFSEEK, SDL_Error(), SDL_FALSE, SDL_FreeSurface(), SDL_GetError(), SDL_OutOfMemory, SDL_ReadLE16(), SDL_ReadLE32(), SDL_realloc(), SDL_RWclose, SDL_RWread, SDL_RWseek, SDL_RWtell, SDL_SetError(), SDL_strcmp(), SDL_strncmp(), SDL_Swap16(), SDL_Swap32(), SDL_TRUE, and SDL_Surface::w.

int SDL_SaveBMP_RW	(	SDL_Surface *	surface,
		SDL_RWops *	dst,
		int	freedst
	)

Save a surface to a seekable SDL data stream (memory or file).

If freedst is non-zero, the stream will be closed after being written.

Returns

0 if successful or -1 if there was an error.

Definition at line 411 of file SDL_bmp.c.

References SDL_PixelFormat::Amask, BI_RGB, bits, SDL_PixelFormat::BitsPerPixel, SDL_PixelFormat::Bmask, SDL_PixelFormat::BytesPerPixel, colors, SDL_Palette::colors, else, SDL_BlitInfo::flags, SDL_Surface::format, SDL_PixelFormat::Gmask, SDL_Surface::h, i, SDL_BlitMap::info, SDL_Surface::map, SDL_Palette::ncolors, NULL, pad, SDL_PixelFormat::palette, SDL_Surface::pitch, SDL_Surface::pixels, SDL_PixelFormat::Rmask, RW_SEEK_SET, SDL_BYTEORDER, SDL_ClearError(), SDL_ConvertSurface(), SDL_COPY_COLORKEY, SDL_EFSEEK, SDL_EFWRITE, SDL_Error(), SDL_FALSE, SDL_FreeSurface(), SDL_GetError(), SDL_InitFormat(), SDL_LIL_ENDIAN, SDL_LockSurface(), SDL_PIXELFORMAT_ARGB8888, SDL_PIXELFORMAT_BGR24, SDL_PIXELFORMAT_BGRA8888, SDL_RWclose, SDL_RWseek, SDL_RWtell, SDL_RWwrite, SDL_SetError(), SDL_strcmp(), SDL_TRUE, SDL_UnlockSurface(), SDL_WriteLE16(), SDL_WriteLE32(), and SDL_Surface::w.