117 lines
4.3 KiB
C++
117 lines
4.3 KiB
C++
/*******************************************************************************
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* disp_sdl.h
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*
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* Written by Christoph Hormann <chris_hormann@gmx.de>
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*
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* SDL (Simple direct media layer) based render display system
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*
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* ---------------------------------------------------------------------------
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* Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
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* Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
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*
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* POV-Ray is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* POV-Ray is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* ---------------------------------------------------------------------------
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* POV-Ray is based on the popular DKB raytracer version 2.12.
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* DKBTrace was originally written by David K. Buck.
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* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
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* ---------------------------------------------------------------------------
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* $File: //depot/public/povray/3.x/unix/disp_sdl.h $
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* $Revision: #1 $
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* $Change: 6069 $
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* $DateTime: 2013/11/06 11:59:40 $
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* $Author: chrisc $
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*******************************************************************************/
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#ifdef HAVE_LIBSDL
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#ifndef _DISP_SDL_H
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#define _DISP_SDL_H
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#include "vfe.h"
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#include "unixoptions.h"
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#include "disp.h"
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#include <SDL/SDL.h>
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namespace pov_frontend
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{
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using namespace std;
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using namespace vfe;
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using namespace vfePlatform;
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class UnixSDLDisplay : public UnixDisplay
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{
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public:
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static const UnixOptionsProcessor::Option_Info Options[];
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static bool Register(vfeUnixSession *session);
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UnixSDLDisplay(unsigned int w, unsigned int h, GammaCurvePtr gamma, vfeSession *session, bool visible);
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virtual ~UnixSDLDisplay();
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void Initialise();
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void Close();
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void Show();
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void Hide();
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bool TakeOver(UnixDisplay *display);
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void DrawPixel(unsigned int x, unsigned int y, const RGBA8& colour);
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void DrawRectangleFrame(unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2, const RGBA8& colour);
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void DrawFilledRectangle(unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2, const RGBA8& colour);
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void DrawPixelBlock(unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2, const RGBA8 *colour);
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void Clear();
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bool HandleEvents();
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void UpdateScreen(bool Force);
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void PauseWhenDoneNotifyStart();
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bool PauseWhenDoneResumeIsRequested();
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void PauseWhenDoneNotifyEnd();
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protected:
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/// Number of Pixels before the display is updated
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static const unsigned int UpdateInterval = 100;
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void SetCaption(bool paused);
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/// Sets the color of a pixel in a non-scaled image.
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inline void SetPixel(unsigned int x, unsigned int y, const RGBA8& colour);
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/**
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@brief Sets the color of a pixel in a scaled-down image.
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If the pixel is already filled the color is mixed.
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*/
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inline void SetPixelScaled(unsigned int x, unsigned int y, const RGBA8& colour);
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/// Makes a pixel coordinate part of the update rectangle
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void UpdateCoord(unsigned int x, unsigned int y);
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/// Makes a rectangle part of the update rectangle
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void UpdateCoord(unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2);
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/// Makes a pixel coordinate part of the update rectangle (scaled down image version)
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void UpdateCoordScaled(unsigned int x, unsigned int y);
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/// Makes a rectangle part of the update rectangle (scaled down image version)
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void UpdateCoordScaled(unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2);
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bool m_Initialized;
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bool m_valid;
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bool m_display_scaled;
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float m_display_scale;
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/// for update interval
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unsigned int m_PxCnt;
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SDL_Surface *m_screen;
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SDL_Surface *m_display;
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SDL_Rect m_screen_rect;
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SDL_Rect m_update_rect;
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/// for mixing colors in scaled down display
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vector<unsigned char> m_PxCount;
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};
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}
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#endif /* _DISP_SDL_H */
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#endif /* HAVE_LIBSDL */
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