Gnash 0.8.9
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00001 // 00002 // Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 00003 // Free Software Foundation, Inc 00004 // 00005 // This program is free software; you can redistribute it and/or modify 00006 // it under the terms of the GNU General Public License as published by 00007 // the Free Software Foundation; either version 3 of the License, or 00008 // (at your option) any later version. 00009 // 00010 // This program is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 // GNU General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with this program; if not, write to the Free Software 00017 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00018 00019 00020 #ifndef BACKEND_RENDER_HANDLER_AGG_H 00021 #define BACKEND_RENDER_HANDLER_AGG_H 00022 00023 #include "dsodefs.h" 00024 #include "Renderer.h" 00025 00026 namespace gnash { 00027 00028 // Base class to shield GUIs from AGG's pixelformat classes 00029 class Renderer_agg_base : public Renderer 00030 { 00031 private: 00032 00033 unsigned char *_testBuffer; // buffer used by initTestBuffer() only 00034 00035 public: 00036 00037 Renderer_agg_base() : _testBuffer(0) { } 00038 00039 // virtual classes should have virtual destructors 00040 virtual ~Renderer_agg_base() {} 00041 00042 // these methods need to be accessed from outside: 00043 virtual void init_buffer(unsigned char *mem, int size, int x, int y, int rowstride)=0; 00044 00045 virtual unsigned int getBytesPerPixel() const=0; 00046 00047 unsigned int getBitsPerPixel() const { return getBytesPerPixel()*8; } 00048 00049 virtual bool initTestBuffer(unsigned width, unsigned height) { 00050 int size = width * height * getBytesPerPixel(); 00051 00052 _testBuffer = static_cast<unsigned char *>( realloc(_testBuffer, size) ); 00053 00054 init_buffer(_testBuffer, size, width, height, width * getBytesPerPixel()); 00055 00056 return true; 00057 } 00058 00059 00060 }; 00061 00062 00064 // 00068 DSOEXPORT Renderer_agg_base* 00069 create_Renderer_agg(const char *pixelformat); 00070 00075 DSOEXPORT const char* agg_detect_pixel_format(unsigned int rofs, unsigned int rsize, 00076 unsigned int gofs, unsigned int gsize, 00077 unsigned int bofs, unsigned int bsize, 00078 unsigned int bpp); 00079 00080 00081 } // namespace gnash 00082 00083 00084 #endif // BACKEND_RENDER_HANDLER_CAIRO_H