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renderer.h

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00001 /*
00002 Copyright (c) 2002 Xavier Trochu
00003 
00004 This software is provided 'as-is', without any express or implied warranty. In no event
00005 will the authors be held liable for any damages arising from the use of this software.
00006 
00007 Permission is granted to anyone to use this software for any purpose, including commercial
00008 applications, and to alter it and redistribute it freely, subject to the following
00009 restrictions:
00010 
00011 1. The origin of this software must not be misrepresented; you must not claim that you
00012    wrote the original software. If you use this software in a product, an acknowledgment
00013    in the product documentation would be appreciated but is not required.
00014 
00015 2. Altered source versions must be plainly marked as such, and must not be misrepresented 
00016    as being the original software.
00017 
00018 3. This notice may not be removed or altered from any source distribution.
00019 */
00020 #ifndef __RENDERER_H_
00021 #define __RENDERER_H_
00022 
00023 #ifdef HAVE_CONFIG_H
00024 #include "config.h"
00025 #endif
00026 
00027 #include "rect.h"
00028 
00029 #include <string>
00030 #include <exception>
00031 
00032 class palette;
00033     
00038 class sound_renderer {
00039 public:
00040     virtual ~sound_renderer() {};
00050     virtual bool init(int frequency, bool stereo) = 0;
00060     virtual bool write(unsigned short * ptr, int size) = 0;
00067     virtual bool stop() = 0;
00068 };
00069 
00076 class renderer {
00077 public:
00078     virtual ~renderer() {};
00089     virtual bool start_decode(const std::string & fname, int version, int nbframes) throw(std::exception) = 0;
00098     virtual bool init_frame(const point & size) throw(std::exception) = 0;
00107     virtual bool set_palette(const palette & pal) throw(std::exception) = 0;
00116     virtual char * lock_frame(int frame) throw(std::exception) = 0;
00123     virtual bool unlock_frame() throw(std::exception) = 0;
00130     virtual bool flip_frame() throw(std::exception) = 0;
00139     virtual bool wait(int ms) throw(std::exception) = 0;
00146     virtual sound_renderer * get_sound_renderer() throw(std::exception) = 0;
00151     virtual bool save_current() throw() { return false; };
00152 };
00153 
00154 #endif

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