CrystalSpace

Public API Reference

csplugincommon/softshader/scanline.h

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00001 /*
00002     Copyright (C) 2005 by Jorrit Tyberghein
00003               (C) 2005 by Frank Richter
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 License, 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 __CS_CSPLUGINCOMMON_SOFTSHADER_SCANLINE_H__
00021 #define __CS_CSPLUGINCOMMON_SOFTSHADER_SCANLINE_H__
00022 
00027 #include "ivideo/rendermesh.h"
00028 
00029 #include "texture.h"
00030 #include "types.h"
00031 
00035 namespace CS
00036 {
00037 namespace PluginCommon
00038 {
00039   namespace SoftShader
00040   {
00044     struct iScanlineRenderer : public virtual iBase
00045     {
00046     public:
00047       SCF_INTERFACE(iScanlineRenderer, 0, 1, 0);
00048     
00062       typedef void (*ScanlineProc) (iScanlineRenderer* _This,
00063         InterpolateEdgePersp& L, InterpolateEdgePersp& R, 
00064         int ipolStep, int ipolShift,
00065         uint32* dest, uint len, uint32 *zbuff);
00066   
00071       struct RenderInfoMesh
00072       {
00074         iScanlineRenderer* renderer;
00076         BuffersMask desiredBuffers;
00078         const size_t* bufferComps;
00079       };
00080 
00085       struct RenderInfoTriangle
00086       {
00088         ScanlineProc proc;
00090         csVector4* denormFactors;
00092         BuffersMask denormBuffers;
00093       };
00094 
00099       virtual bool SetupMesh (TexturesMask availableTextures,
00100         BuffersMask availableBuffers, const csRenderMeshModes& modes,
00101         bool needColors, RenderInfoMesh& renderInfoMesh) = 0;
00106       virtual bool SetupTriangle (SoftwareTexture** textures,
00107         const RenderInfoMesh& renderInfoMesh,
00108         RenderInfoTriangle& renderInfoTri) = 0;
00109     };
00110 
00114     struct iDefaultScanlineRenderer : public virtual iBase
00115     {
00116     public:
00117       SCF_INTERFACE(iDefaultScanlineRenderer, 0, 1, 1);
00118 
00122       virtual void SetFlatColor (const csVector4& v) = 0;
00129       virtual void SetShift (int rgbShift, int alphaShift) = 0;
00131       virtual void SetColorSum (bool enable) = 0;
00132     };
00133   } // namespace SoftShader
00134 } // namespace PluginCommon
00135 } // namespace CS
00136 
00139 #endif // __CS_CSPLUGINCOMMON_SOFTSHADER_SCANLINE_H__

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