images.cpp File Reference

Image loading and saving functions. More...

#include "images.h"
#include "shared.h"
#include <jpeglib.h>
#include <png.h>
#include <zlib.h>
#include <jerror.h>

Go to the source code of this file.

Data Structures
struct	bufState_t

Macros
#define	TGA_UNMAP_COMP   10
#define	TGA_CHANNELS   3

Functions
char const *const *	Img_GetImageTypes (void)
void	R_WritePNG (qFILE *f, byte *buffer, int width, int height)
void	R_WriteCompressedTGA (qFILE *f, const byte *buffer, int width, int height)
void	R_WriteJPG (qFILE *f, byte *buffer, int width, int height, int quality)
static byte *	readFile (char const *const name, char const *const suffix, size_t &len)
static SDL_Surface *	createSurface (int const height, int const width)
static void	readMem (png_struct *const png, png_byte *const dst, png_size_t const size)
static SDL_Surface *	Img_LoadPNG (char const *const name)
static void	djpeg_nop (jpeg_decompress_struct *)
static boolean	djpeg_fill_input_buffer (jpeg_decompress_struct *const cinfo)
static void	djpeg_skip_input_data (jpeg_decompress_struct *const cinfo, long const num_bytes)
static SDL_Surface *	Img_LoadJPG (char const *const name)
SDL_Surface *	Img_LoadImage (char const *name)
	Loads the specified image from the game filesystem and populates the provided SDL_Surface. More...

Variables
static char const *const	IMAGE_TYPES [] = { "png", "jpg", nullptr }

Detailed Description

Image loading and saving functions.

Definition in file images.cpp.

Macro Definition Documentation

#define TGA_CHANNELS   3

Definition at line 95 of file images.cpp.

Referenced by R_WriteCompressedTGA().

#define TGA_UNMAP_COMP   10

Definition at line 44 of file images.cpp.

Referenced by R_WriteCompressedTGA().

Function Documentation

static SDL_Surface* createSurface ( int const  height, int const  width  )

static

Definition at line 270 of file images.cpp.

Referenced by Img_LoadJPG(), and Img_LoadPNG().

static boolean djpeg_fill_input_buffer ( jpeg_decompress_struct *const  cinfo )

static

Definition at line 350 of file images.cpp.

Referenced by Img_LoadJPG().

static void djpeg_nop ( jpeg_decompress_struct *  )

static

Definition at line 348 of file images.cpp.

Referenced by Img_LoadJPG().

static void djpeg_skip_input_data ( jpeg_decompress_struct *const  cinfo, long const  num_bytes  )

static

Definition at line 356 of file images.cpp.

Referenced by Img_LoadJPG().

char const* const* Img_GetImageTypes

(

void

)

Definition at line 46 of file images.cpp.

References IMAGE_TYPES.

Referenced by R_ImageExists().

SDL_Surface* Img_LoadImage

(

char const *

name

)

Loads the specified image from the game filesystem and populates the provided SDL_Surface.

Image formats are tried in the order they appear in TYPES.

Note

Make sure to free the given SDL_Surface after you are done with it.

Definition at line 435 of file images.cpp.

References Img_LoadJPG(), and Img_LoadPNG().

Referenced by CalcTextureReflectivity(), R_FindImage(), R_LoadImage(), R_ReloadImageData(), and TEST_F().

static SDL_Surface* Img_LoadJPG ( char const *const  name )

static

Definition at line 370 of file images.cpp.

References createSurface(), djpeg_fill_input_buffer(), djpeg_nop(), djpeg_skip_input_data(), FS_FreeFile(), len, and readFile().

Referenced by Img_LoadImage().

static SDL_Surface* Img_LoadPNG ( char const *const  name )

static

Definition at line 298 of file images.cpp.

References createSurface(), FS_FreeFile(), len, readFile(), and readMem().

Referenced by Img_LoadImage().

void R_WriteCompressedTGA	(	qFILE *	f,
		const byte *	buffer,
		int	width,
		int	height
	)

See also

R_LoadTGA

R_WriteTGA

Definition at line 101 of file images.cpp.

References FS_Write(), index, OBJZERO, TGA_CHANNELS, and TGA_UNMAP_COMP.

Referenced by R_ScreenShot().

void R_WriteJPG	(	qFILE *	f,
		byte *	buffer,
		int	width,
		int	height,
		int	quality
	)

See also

R_ScreenShot_f

R_LoadJPG

Definition at line 224 of file images.cpp.

References qFILE_s::f.

Referenced by R_ScreenShot().

void R_WritePNG	(	qFILE *	f,
		byte *	buffer,
		int	width,
		int	height
	)

See also

R_LoadTGA

R_LoadJPG

R_FindImage

Definition at line 56 of file images.cpp.

References qFILE_s::f, and i.

Referenced by R_ScreenShot(), and SL_CreatePNGFile().

static byte* readFile ( char const *const  name, char const *const  suffix, size_t &  len  )

static

Definition at line 261 of file images.cpp.

References FS_LoadFile(), and MAX_QPATH.

Referenced by Img_LoadJPG(), and Img_LoadPNG().

static void readMem ( png_struct *const  png, png_byte *const  dst, png_size_t const  size  )

static

Definition at line 287 of file images.cpp.

References bufState_t::end, and bufState_t::ptr.

Referenced by Img_LoadPNG().

Variable Documentation

char const* const IMAGE_TYPES[] = { "png", "jpg", nullptr }

static

image formats, tried in this order

Definition at line 42 of file images.cpp.

Referenced by Img_GetImageTypes().