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/* Copyright (C) 2017 Wildfire Games.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* private texture loader helper functions
*/
#ifndef INCLUDED_TEX_INTERNAL
#define INCLUDED_TEX_INTERNAL
#include "lib/allocators/dynarray.h"
#include "lib/file/io/io.h" // io::Allocate
/**
* check if the given texture format is acceptable: 8bpp grey,
* 24bpp color or 32bpp color+alpha (BGR / upside down are permitted).
* basically, this is the "plain" format understood by all codecs and
* tex_codec_plain_transform.
* @param bpp bits per pixel
* @param flags TexFlags
* @return Status
**/
extern Status tex_validate_plain_format(size_t bpp, size_t flags);
/**
* indicate if the two vertical orientations match.
*
* used by tex_codec.
*
* @param src_flags TexFlags, used to extract the orientation.
* we ask for this instead of src_orientation so callers don't have to
* mask off TEX_ORIENTATION.
* @param dst_orientation orientation to compare against.
* can be one of TEX_BOTTOM_UP, TEX_TOP_DOWN, or 0 for the
* "global orientation".
* @return bool
**/
extern bool tex_orientations_match(size_t src_flags, size_t dst_orientation);
#endif // #ifndef INCLUDED_TEX_INTERNAL
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