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/* This file is part of ksquirrel-libs (http://ksquirrel.sf.net)
Copyright (c) 2005 Dmitry Baryshev <ksquirrel@tut.by>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation;
either version 2 of the License, or (at your option) any later
version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef KSQUIRREL_LIBS_DEFS_H
#define KSQUIRREL_LIBS_DEFS_H
#include <vector>
#include <string>
#include <ksquirrel-libs/fmt_types.h>
struct codec_options
{
std::string version,
name,
filter,
mime,
mimetype,
config;
void *pixmap;
bool readable,
canbemultiple,
writestatic,
writeanimated,
needtempfile;
};
/* Metainfo support */
struct fmt_metaentry
{
std::string group;
std::string data;
};
/* RGBA and RGB pixels */
struct RGBA
{
RGBA() : r(0), g(0), b(0), a(0)
{}
RGBA(s32 r1, s32 g1, s32 b1, s32 a1) : r(r1), g(g1), b(b1), a(a1)
{}
u8 r;
u8 g;
u8 b;
u8 a;
}PACKED;
struct RGB
{
RGB() : r(0), g(0), b(0)
{}
RGB(s32 r1, s32 g1, s32 b1) : r(r1), g(g1), b(b1)
{}
u8 r;
u8 g;
u8 b;
}PACKED;
/* Image decription */
struct fmt_image
{
fmt_image() : w(0), h(0), bpp(0), hasalpha(false), needflip(false), delay(0),
interlaced(false), passes(1)
{}
// width and height
s32 w;
s32 h;
// bit depth
s32 bpp;
// has alpha channel ?
bool hasalpha;
// need to be flipped ?
bool needflip;
// if it's a frame in animated sequence,
// 'delay' will define a delay time
s32 delay;
// interlaced or normal ?
bool interlaced;
// if interlaced, 'passes' stores the number
// of passes. if no, passes should be 1
s32 passes;
// some useful info about image.
// this is a replacement for 'dump' in older versions of ksquirrel-libs
// --------------------------------------------------------------------
// color space (RGB, RGBA, CMYK, LAB ...)
std::string colorspace;
// compression type (RLE, JPEG, Deflate ...)
std::string compression;
// palette types
enum fmt_palette { monochrome = 1, indexed4 = 2, indexed8 = 4, indexed15 = 8,
indexed16 = 16, pure24 = 32, pure32 = 64, internal = 128 };
// palette, if exists
std::vector<RGB> palette;
};
/* General description */
struct fmt_info
{
fmt_info() : animated(false)
{}
/*
* TODO: make 'image' and 'meta' implicitly shared ?
*/
// array of images
std::vector<fmt_image> image;
// array of metainfo entries
std::vector<fmt_metaentry> meta;
// animated or static
bool animated;
};
/* Internal cmpression.
E.g. compression_level will be
passed to internal routines,
No compression RLE compression for ex. in libjpeg, libpng.
*/
enum fmt_compression { CompressionNo = 1, CompressionRLE = 2, CompressionInternal = 4 };
/* Note: if the image can be compressed
with RLE encoding and with only RLE
encoding, compression_scheme should be
CompressionInternal
*/
/* Write options for image format */
struct fmt_writeoptionsabs
{
// can be interlaced ?
bool interlaced;
// if interlaced, this value should store preferred number of passes.
s32 passes;
// if the image should be flipped before writing
bool needflip;
// with which compression it can be encoded ?
// for example: CompressionNo | CompressionRLE.
// it means, that image can be encoded with RLE
// method or can be saved uncompressed.
s32 compression_scheme;
// minimum compression level, maximum and default
// For example, JPEG library has minimum = 0,
// maximum = 100 and default = 25.
s32 compression_min, compression_max, compression_def;
// with which bit depth it can be encoded ?
// 1 means support of this bit depth,
// and 0 otherwise. This param cann't be null.
//
// bits 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
// bit depth 32 24 16 15 8 4 1
u8 palette_flags;
}PACKED;
/* this information will be passed to writing function */
struct fmt_writeoptions
{
// write interlaced image or normal ?
bool interlaced;
// with which compression encode the image ?
fmt_compression compression_scheme;
// compression level
s32 compression_level;
// has alpha channel ?
// If no, A channel in RGBA image will be ignored
bool alpha;
s32 bitdepth;
}PACKED;
#if defined SQ_NEED_OPERATOR_RGBA_RGBA
static s32 operator== (const RGBA &rgba1, const RGBA &rgba2)
{
return (rgba1.r == rgba2.r && rgba1.g == rgba2.g && rgba1.b == rgba2.b && rgba1.a == rgba2.a);
}
#endif
#if defined SQ_NEED_OPERATOR_RGB_RGBA
static s32 operator== (const RGB &rgb, const RGBA &rgba)
{
return (rgb.r == rgba.r && rgb.g == rgba.g && rgb.b == rgba.b);
}
#endif
#if defined SQ_NEED_OPERATOR_RGBA_RGB
static s32 operator== (const RGBA &rgba, const RGB &rgb)
{
return (rgba.r == rgb.r && rgba.g == rgb.g && rgba.b == rgb.b);
}
#endif
#endif
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