gd_tga.c File Reference

#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include "gd_tga.h"
#include "gd.h"
#include "gd_errors.h"
#include "gdhelpers.h"

Go to the source code of this file.

Functions
gdImagePtr	gdImageCreateFromTga (FILE *fp)
gdImagePtr	gdImageCreateFromTgaPtr (int size, void *data)
gdImagePtr	gdImageCreateFromTgaCtx (gdIOCtx *ctx)
int	read_header_tga (gdIOCtx *ctx, oTga *tga)
	Reads a TGA header. Reads the header block from a binary TGA file populating the referenced TGA structure.
int	read_image_tga (gdIOCtx *ctx, oTga *tga)
	Reads a TGA image data into buffer. Reads the image data block from a binary TGA file populating the referenced TGA structure.
void	free_tga (oTga *tga)
	Cleans up a TGA structure. Dereferences the bitmap referenced in a TGA structure, then the structure itself.

Function Documentation

free_tga()

void free_tga

(

oTga *

tga

)

Cleans up a TGA structure. Dereferences the bitmap referenced in a TGA structure, then the structure itself.

Parameters

tga	Pointer to TGA structure

Definition at line 354 of file gd_tga.c.

gdImageCreateFromTga()

gdImagePtr gdImageCreateFromTga

(

FILE *

fp

)

File: TGA Input

Read TGA images.

Definition at line 30 of file gd_tga.c.

gdImageCreateFromTgaCtx()

gdImagePtr gdImageCreateFromTgaCtx

(

gdIOCtx *

ctx

)

Populate GD image object Copy the pixel data from our tga bitmap buffer into the GD image Disable blending and save the alpha channel per default

Definition at line 62 of file gd_tga.c.

gdImageCreateFromTgaPtr()

gdImagePtr gdImageCreateFromTgaPtr	(	int	size,
		void *	data )

Definition at line 43 of file gd_tga.c.

read_header_tga()

int read_header_tga	(	gdIOCtx *	ctx,
		oTga *	tga )

Reads a TGA header. Reads the header block from a binary TGA file populating the referenced TGA structure.

Parameters

ctx	Pointer to TGA binary file
tga	Pointer to TGA structure

Returns

int 1 on success, -1 on failure

Definition at line 146 of file gd_tga.c.

read_image_tga()

int read_image_tga	(	gdIOCtx *	ctx,
		oTga *	tga )

Reads a TGA image data into buffer. Reads the image data block from a binary TGA file populating the referenced TGA structure.

Parameters

ctx	Pointer to TGA binary file
tga	Pointer to TGA structure

Returns

int 0 on success, -1 on failure

Todo

Add more image type support.

Allocate memmory for image block Allocate a chunk of memory for the image block to be passed into.

Read in uncompressed RGB TGA Chunk load the pixel data from an uncompressed RGB type TGA.

Read in RLE compressed RGB TGA Chunk load the pixel data from an RLE compressed RGB type TGA.

Definition at line 209 of file gd_tga.c.