#include "precompiled.h"
#include "tex_codec.h"
#include <string.h>
#include <stdlib.h>
#include "lib/allocators/shared_ptr.h"
#include "tex.h"

Include dependency graph for tex_codec.cpp:

Functions
Status	tex_codec_for_filename (const OsPath &extension, const ITexCodec **c)
	Find codec that recognizes the desired output file extension. More...

Status	tex_codec_for_header (const u8 file, size_t file_size, const ITexCodec *c)
	find codec that recognizes the header's magic field. More...

Status	tex_codec_transform (Tex *t, size_t transforms)
	transform the texture's pixel format. More...

std::vector< RowPtr >	tex_codec_alloc_rows (const u8 *data, size_t h, size_t pitch, size_t src_flags, size_t dst_orientation)

Status	tex_codec_write (Tex t, size_t transforms, const void hdr, size_t hdr_size, DynArray *da)
	apply transforms and then copy header and image into output buffer. More...

Variables
TexCodecDds	DdsCodec

TexCodecPng	PngCodec

TexCodecTga	TgaCodec

TexCodecBmp	BmpCodec

static const ITexCodec *	codecs []

static const int	codecs_len = sizeof(codecs) / sizeof(ITexCodec*)

Function Documentation

std::vector<RowPtr> tex_codec_alloc_rows	(	const u8 *	data,
		size_t	h,
		size_t	pitch,
		size_t	src_flags,
		size_t	dst_orientation
	)

Status tex_codec_for_filename	(	const OsPath &	extension,
		const ITexCodec **	c
	)

Find codec that recognizes the desired output file extension.

Parameters

extension
c	(out) vtbl of responsible codec

Returns: Status; ERR::RES_UNKNOWN_FORMAT (without warning, because this is called by tex_is_known_extension) if no codec indicates they can handle the given extension.

Status tex_codec_for_header	(	const u8 *	data,
		size_t	data_size,
		const ITexCodec **	c
	)

find codec that recognizes the header's magic field.

Parameters

data	typically contents of file, but need only include the (first 4 bytes of) header.
data_size	[bytes]
c	(out) vtbl of responsible codec

Returns: Status; ERR::RES_UNKNOWN_FORMAT if no codec indicates they can handle the given format (header).

Status tex_codec_transform	(	Tex *	t,
		size_t	transforms
	)

transform the texture's pixel format.

tries each codec's transform method once, or until one indicates success.

Parameters

t	texture object
transforms	OR-ed combination of TEX_* flags that are to be changed.

Returns: Status

Status tex_codec_write	(	Tex *	t,
		size_t	transforms,
		const void *	hdr,
		size_t	hdr_size,
		DynArray *	da
	)

apply transforms and then copy header and image into output buffer.

Parameters

t	input texture object
transforms	transformations to be applied to pixel format
hdr	header data
hdr_size	[bytes]
da	output data array (will be expanded as necessary)