tga.h File Reference

Jo Engine Truevision Targa format support. More...

Go to the source code of this file.

Typedefs
typedef jo_palette *(*	jo_tga_palette_handling_callback) (void)
	Function prototype for () More...

Enumerations
enum	t_tga_error_code { JO_TGA_OK, JO_TGA_FILE_NOT_FOUND, JO_TGA_UNSUPPORTED_FORMAT, JO_TGA_OUT_OF_MEMORY }
	tga error code More...

Functions
void	jo_set_tga_palette_handling (jo_tga_palette_handling_callback callback)
	Set the callback to handle TGA palette for 8 bits image. More...
t_tga_error_code	jo_tga_loader_from_stream (jo_img *img, char *stream, const jo_color transparent_color)
	Load a TGA image from stream. More...
int	jo_sprite_add_tga_from_stream (char *stream, const jo_color transparent_color)
	Add a sprite from a TGA stream. More...
int	jo_sprite_add_tga (const char *const sub_dir, const char *const filename, const jo_color transparent_color)
	Add a sprite from a TGA file. More...
t_tga_error_code	jo_tga_loader (jo_img *img, const char *const sub_dir, const char *const filename, const jo_color transparent_color)
	Load a TGA image. More...
t_tga_error_code	jo_tga_8bits_loader (jo_img_8bits *img, const char *const sub_dir, const char *const filename, const int transparent_color_index_in_palette)
	Load a 8 bits 255 colors max TGA image. More...
t_tga_error_code	jo_tga_8bits_loader_from_stream (jo_img_8bits *img, char *stream, const int transparent_color_index_in_palette)
	Load a 8 bits 255 colors max TGA image. More...
t_tga_error_code	jo_tga_8bits_tileset_loader (const char *const sub_dir, const char *const filename, const jo_color transparent_color, const jo_tile *const tileset, const unsigned int tile_count, jo_raw_img *output_tiles)
	Load a tileset TGA image. More...
int	jo_sprite_add_tga_tileset (const char *const sub_dir, const char *const filename, const jo_color transparent_color, const jo_tile *const tileset, const unsigned int tile_count)
	Add tileset sprites from a TGA file. More...

Detailed Description

Jo Engine Truevision Targa format support.

Author

Johannes Fetz

Bug:

jo_tga_tileset_loader is not tested

Typedef Documentation

jo_tga_palette_handling_callback

typedef jo_palette*(* jo_tga_palette_handling_callback) (void)

Function prototype for ()

Enumeration Type Documentation

t_tga_error_code

enum t_tga_error_code

tga error code

Enumerator
JO_TGA_OK
JO_TGA_FILE_NOT_FOUND
JO_TGA_UNSUPPORTED_FORMAT
JO_TGA_OUT_OF_MEMORY

Function Documentation

jo_set_tga_palette_handling()

void jo_set_tga_palette_handling

(

jo_tga_palette_handling_callback

callback

)

Set the callback to handle TGA palette for 8 bits image.

Parameters

callback

The callback

Warning

This function is mandatory if you use 8 bits TGA

jo_sprite_add_tga()

int jo_sprite_add_tga	(	const char *const	sub_dir,
		const char *const	filename,
		const jo_color	transparent_color
	)

Add a sprite from a TGA file.

Parameters

sub_dir	Sub directory name (use JO_ROOT_DIR if the file is on the root directory)
filename	Filename (upper case and shorter as possible like "A.TGA")
transparent_color	Transparent color or palette index for 8 bits image. Use JO_COLOR_Transparent by default

Warning

The first index of the palette is 1 not 0. 0 (or JO_COLOR_Transparent) means no transparency.

The palette of 8 bits TGA must be 255 colors max not 256

Returns

Sprite Id or -1 if failed

jo_sprite_add_tga_from_stream()

int jo_sprite_add_tga_from_stream	(	char *	stream,
		const jo_color	transparent_color
	)

Add a sprite from a TGA stream.

Parameters

stream	Raw TGA contents
transparent_color	Transparent color (see colors.h). Use JO_COLOR_Transparent by default

Returns

Sprite Id or -1 if failed

jo_sprite_add_tga_tileset()

int jo_sprite_add_tga_tileset	(	const char *const	sub_dir,
		const char *const	filename,
		const jo_color	transparent_color,
		const jo_tile *const	tileset,
		const unsigned int	tile_count
	)

Add tileset sprites from a TGA file.

Parameters

sub_dir	Sub directory name (use JO_ROOT_DIR if the file is on the root directory)
filename	Filename (upper case and shorter as possible like "A.TGA")
transparent_color	Transparent color or palette index for 8 bits image. Use JO_COLOR_Transparent by default
tileset	Tileset definition
tile_count	Number of tile in the entire image

Warning

The first index of the palette is 1 not 0. 0 (or JO_COLOR_Transparent) means no transparency.

The palette of 8 bits TGA must be 255 colors max not 256

Returns

Sprite Id of the first image or -1 if failed

jo_tga_8bits_loader()

t_tga_error_code jo_tga_8bits_loader	(	jo_img_8bits *	img,
		const char *const	sub_dir,
		const char *const	filename,
		const int	transparent_color_index_in_palette
	)

Load a 8 bits 255 colors max TGA image.

Parameters

img	Image (set data to NULL for dynamic allocation)
sub_dir	Sub directory name (use JO_ROOT_DIR if the file is on the root directory)
filename	Filename (upper case and shorter as possible like "A.TGA")
transparent_color_index_in_palette	Transparent color in palette index. Use 0 by default

Warning

The first index of the palette is 1 not 0. 0 (or JO_COLOR_Transparent) means no transparency.

The palette of 8 bits TGA must be 255 colors max not 256

Returns

t_tga_error_code

jo_tga_8bits_loader_from_stream()

t_tga_error_code jo_tga_8bits_loader_from_stream	(	jo_img_8bits *	img,
		char *	stream,
		const int	transparent_color_index_in_palette
	)

Load a 8 bits 255 colors max TGA image.

Parameters

img	Image (set data to NULL for dynamic allocation)
stream	Raw TGA contents
transparent_color_index_in_palette	Transparent color in palette index. Use 0 by default

Warning

The first index of the palette is 1 not 0. 0 (or JO_COLOR_Transparent) means no transparency.

The palette of 8 bits TGA must be 255 colors max not 256

Returns

t_tga_error_code

jo_tga_8bits_tileset_loader()

t_tga_error_code jo_tga_8bits_tileset_loader	(	const char *const	sub_dir,
		const char *const	filename,
		const jo_color	transparent_color,
		const jo_tile *const	tileset,
		const unsigned int	tile_count,
		jo_raw_img *	output_tiles
	)

Load a tileset TGA image.

Parameters

sub_dir	Sub directory name (use JO_ROOT_DIR if the file is on the root directory)
filename	Filename (upper case and shorter as possible like "A.TGA")
transparent_color	Transparent color or palette index for 8 bits image. Use JO_COLOR_Transparent by default
tileset	Tileset definition
tile_count	Number of tile in the entire image
output_tiles	an array of tile_count * jo_raw_img.

Warning

The first index of the palette is 1 not 0. 0 (or JO_COLOR_Transparent) means no transparency.

The palette of 8 bits TGA must be 255 colors max not 256

Returns

t_tga_error_code

jo_tga_loader()

t_tga_error_code jo_tga_loader	(	jo_img *	img,
		const char *const	sub_dir,
		const char *const	filename,
		const jo_color	transparent_color
	)

Load a TGA image.

Parameters

img	Image (set data to NULL for dynamic allocation)
sub_dir	Sub directory name (use JO_ROOT_DIR if the file is on the root directory)
filename	Filename (upper case and shorter as possible like "A.TGA")
transparent_color	Transparent color or palette index for 8 bits image. Use JO_COLOR_Transparent by default

Warning

The first index of the palette is 1 not 0. 0 (or JO_COLOR_Transparent) means no transparency.

The palette of 8 bits TGA must be 255 colors max not 256

Returns

t_tga_error_code

jo_tga_loader_from_stream()

t_tga_error_code jo_tga_loader_from_stream	(	jo_img *	img,
		char *	stream,
		const jo_color	transparent_color
	)

Load a TGA image from stream.

Parameters

img	Image (set data to NULL for dynamic allocation)
stream	Raw TGA contents
transparent_color	Transparent color or palette index for 8 bits image. Use JO_COLOR_Transparent by default

Warning

The first index of the palette is 1 not 0. 0 (or JO_COLOR_Transparent) means no transparency.

The palette of 8 bits TGA must be 255 colors max not 256

Returns

t_tga_error_code