worldspawn/libs/imagelib.h

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2020-11-17 11:16:16 +00:00
/*
Copyright (C) 2001-2006, William Joseph.
All Rights Reserved.
This file is part of GtkRadiant.
GtkRadiant is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
GtkRadiant 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#if !defined( INCLUDED_IMAGELIB_H )
#define INCLUDED_IMAGELIB_H
#include "iimage.h"
#include "iarchive.h"
#include "idatastream.h"
#include <stdlib.h>
struct RGBAPixel
{
unsigned char red, green, blue, alpha;
};
class RGBAImage : public Image
{
RGBAImage( const RGBAImage& other );
RGBAImage& operator=( const RGBAImage& other );
public:
RGBAPixel* pixels;
unsigned int width, height;
RGBAImage( unsigned int _width, unsigned int _height )
: pixels( new RGBAPixel[_width * _height] ), width( _width ), height( _height ){
}
~RGBAImage(){
delete[] pixels;
}
void release(){
delete this;
}
byte* getRGBAPixels() const {
return reinterpret_cast<byte*>( pixels );
}
unsigned int getWidth() const {
return width;
}
unsigned int getHeight() const {
return height;
}
};
class RGBAImageFlags : public RGBAImage
{
public:
int m_surfaceFlags;
int m_contentFlags;
int m_value;
RGBAImageFlags( unsigned short _width, unsigned short _height, int surfaceFlags, int contentFlags, int value ) :
RGBAImage( _width, _height ), m_surfaceFlags( surfaceFlags ), m_contentFlags( contentFlags ), m_value( value ){
}
int getSurfaceFlags() const {
return m_surfaceFlags;
}
int getContentFlags() const {
return m_contentFlags;
}
int getValue() const {
return m_value;
}
};
inline InputStream::byte_type* ArchiveFile_loadBuffer( ArchiveFile& file, std::size_t& length ){
InputStream::byte_type* buffer = (InputStream::byte_type*)malloc( file.size() + 1 );
length = file.getInputStream().read( buffer, file.size() );
buffer[file.size()] = 0;
return buffer;
}
inline void ArchiveFile_freeBuffer( InputStream::byte_type* buffer ){
free( buffer );
}
class ScopedArchiveBuffer
{
public:
std::size_t length;
InputStream::byte_type* buffer;
ScopedArchiveBuffer( ArchiveFile& file ){
buffer = ArchiveFile_loadBuffer( file, length );
}
~ScopedArchiveBuffer(){
ArchiveFile_freeBuffer( buffer );
}
};
class PointerInputStream : public InputStream
{
const byte* m_read;
public:
PointerInputStream( const byte* pointer )
: m_read( pointer ){
}
std::size_t read( byte* buffer, std::size_t length ){
const byte* end = m_read + length;
while ( m_read != end )
{
*buffer++ = *m_read++;
}
return length;
}
void seek( std::size_t offset ){
m_read += offset;
}
const byte* get(){
return m_read;
}
};
#endif