csgfxppl.h Source File

00001 /*
00002     Crystal Space Windowing System: Graphics Pipeline class
00003     Copyright (C) 1998,1999 by Andrew Zabolotny <bit@eltech.ru>
00004 
00005     This library is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU Library General Public
00007     License as published by the Free Software Foundation; either
00008     version 2 of the 9License, or (at your option) any later version.
00009 
00010     This library 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 GNU
00013     Library General Public License for more details.
00014 
00015     You should have received a copy of the GNU Library General Public
00016     License along with this library; if not, write to the Free
00017     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 */
00019 
00020 #ifndef __CSGFXPPL_H__
00021 #define __CSGFXPPL_H__
00022 
00023 #include "csgeom/csrect.h"
00024 #include "cstool/cspixmap.h"
00025 #include "ivideo/graph2d.h"
00026 
00027 class csMouse;
00028 struct iGraphics2D;
00029 struct iObjectRegistry;
00030 
00031 // Maximal number of primitives which can be drawn IN ONE FRAME
00032 #define MAX_CSWS_PIPELINE_LENGTH 16384
00033 // Maximal number of video pages to sync image
00034 #define MAX_SYNC_PAGES 8
00035 
00063 class csGraphicsPipeline
00064 {
00065 private:
00067   friend class csApp;
00068 
00071   csImageArea *SyncArea [MAX_SYNC_PAGES];
00073   csRect RefreshRect;
00075   csRect PageCarry;
00077   int MaxPage;
00079   int CurPage;
00080 
00082   int DrawMode;
00084   csRect ClipRect;
00086   csRect OrigClip;
00087 
00088   // Frame width and height
00089   int FrameWidth, FrameHeight;
00090 
00091   // The 2D graphics driver
00092   iGraphics2D *G2D;
00093   // The 3D graphics driver
00094   iGraphics3D *G3D;
00095 
00096   // Do not cache the image of current frame
00097   bool DontCacheFrame;
00098 
00100   void Initialize (iObjectRegistry *object_reg);
00102   virtual ~csGraphicsPipeline ();
00103 
00105   void Sync (int CurPage, int &xmin, int &ymin, int &xmax, int &ymax);
00106 
00108   void Desync ();
00109 
00111   void Box (int xmin, int ymin, int xmax, int ymax, int color);
00112 
00114   void Line (float x1, float y1, float x2, float y2, int color);
00115 
00117   void Pixel (int x, int y, int color);
00118 
00120   void Text (int x, int y, int fg, int bg, iFont *font, int fontsize, const char *s);
00121 
00123   void Pixmap (csPixmap *s2d, int x, int y, int w, int h, uint8 Alpha);
00124 
00126   void TiledPixmap (csPixmap *s2d, int x, int y, int w, int h,
00127     int orgx, int orgy, uint8 Alpha);
00128 
00130   void Texture (iTextureHandle *hTex, int sx, int sy, int sw, int sh,
00131     int tx, int ty, int tw, int th, uint8 Alpha);
00132 
00134   void SaveArea (csImageArea **Area, int x, int y, int w, int h);
00135 
00137   void RestoreArea (csImageArea *Area, bool Free);
00138 
00140   void FreeArea (csImageArea *Area);
00141 
00143   void Clear (int color);
00144 
00146   void SetClipRect (int xmin, int ymin, int xmax, int ymax);
00147 
00149   void RestoreClipRect();
00150 
00152   void Polygon3D (G3DPolygonDPFX &poly, uint mode);
00153 
00155   bool ClipLine (float &x1, float &y1, float &x2, float &y2,
00156     int ClipX1, int ClipY1, int ClipX2, int ClipY2);
00157 
00159   void GetPixel (int x, int y, uint8 &oR, uint8 &oG, uint8 &oB);
00160 
00162   bool SwitchMouseCursor (csMouseCursorID Shape);
00163 
00165   void ClearZbuffer ()
00166   { DrawMode |= CSDRAW_CLEARZBUFFER; }
00167 
00169   void ClearZbuffer (int x1, int y1, int x2, int y2);
00170 
00172   void SetZbufferMode (unsigned mode)
00173   { G3D->SetRenderState (G3DRENDERSTATE_ZBUFFERMODE, mode); }
00174 
00176   void StartFrame (csMouse *Mouse);
00177 
00179   void FinishFrame (csMouse *Mouse);
00180 
00182   bool BeginDraw (int iMode)
00183   { return (iMode != DrawMode) ? BeginDrawImp (iMode) : true; }
00184 
00186   void FinishDraw ();
00187 
00189   bool BeginDrawImp (int iMode);
00190 
00192   void FinishDrawImp ();
00193 
00195   void Invalidate (csRect &rect);
00196 
00198   void CanvasResize ();
00199 };
00200 
00201 #endif // __CSGFXPPL_H__