csgfx/lightsvcache.h Source File (Crystal Space 2.0 Public API Reference)

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csgfx/lightsvcache.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_CSGFX_SHADER_LIGHTSVCACHE_H__
    00021 #define __CS_CSGFX_SHADER_LIGHTSVCACHE_H__
    00022
    00023 #include "csextern.h"
    00024
    00025 #include "csutil/array.h"
    00026 #include "csutil/ref.h"
    00027 #include "iutil/strset.h"
    00028 #include "ivideo/shader/shader.h"
    00029
    00037 class CS_CRYSTALSPACE_EXPORT csLightShaderVarCache
    00038 {
    00039 public:
    00041   enum LightProperty
    00042   {
    00044     lightDiffuse = 0,
    00046     lightSpecular,
    00048     lightPositionWorld,
    00050     lightTransformWorld,
    00052     lightTransformWorldInverse,
    00054     lightAttenuation,
    00059     lightAttenuationTex,
    00061     lightDirectionWorld,
    00063     lightInnerFalloff,
    00065     lightOuterFalloff,
    00067     lightType,
    00069     lightAttenuationMode,
    00071     lightShadowMapProjection,
    00073     lightShadowMapPixelSize,
    00074
    00076     _lightCount
    00077   };
    00078
    00080   enum DefaultSV
    00081   {
    00083     varAmbient = 0,
    00085     varLightCount,
    00086
    00088     _varCount
    00089   };
    00090 private:
    00091   csRef<iShaderVarStringSet> strings;
    00092   CS::ShaderVarStringID defaultVars[_varCount];
    00093
    00094   CS::ShaderVarStringID lightSVIdCache_unnumbered[_lightCount];
    00095
    00096   void ClearDefVars ();
    00097 public:
    00102   csLightShaderVarCache () { ClearDefVars (); }
    00103
    00108   void SetStrings (iShaderVarStringSet* strings);
    00109
    00118   CS::ShaderVarStringID GetLightSVId (LightProperty prop);
    00119
    00129   CS::ShaderVarStringID GetDefaultSVId (DefaultSV var);
    00130 };
    00131
    00132 #endif // __CS_CSGFX_SHADER_LIGHTSVCACHE_H__