Ykkrosh
555deea136
CShaderDefines is designed to be efficient to copy and compare, but not to construct. Conditional defines were constructing new CShaderDefines for many models every frame. Precompute all the possible conditional combinations of CShaderDefines when a material is first loaded, so they can be looked up at no cost when rendering. This was SVN commit r13902.
98 lines
3.1 KiB
C++
98 lines
3.1 KiB
C++
/* Copyright (C) 2012 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_MATERIAL
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#define INCLUDED_MATERIAL
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#include "graphics/ShaderDefines.h"
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#include "graphics/Texture.h"
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#include "ps/CStr.h"
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#include "ps/CStrIntern.h"
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#include "ps/Overlay.h"
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#include "simulation2/helpers/Player.h"
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class CMaterial
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{
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public:
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struct TextureSampler
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{
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TextureSampler(CStr &n, CTexturePtr t) : Name(n), Sampler(t) {}
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CStrIntern Name;
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CTexturePtr Sampler;
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};
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typedef std::vector<TextureSampler> SamplersVector;
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CMaterial();
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// Whether this material's shaders use alpha blending, in which case
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// models using this material need to be rendered in a special order
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// relative to the alpha-blended water plane
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void SetUsesAlphaBlending(bool flag) { m_AlphaBlending = flag; }
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bool UsesAlphaBlending() { return m_AlphaBlending; }
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const CTexturePtr& GetDiffuseTexture() const { return m_DiffuseTexture; }
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void SetShaderEffect(const CStr& effect);
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CStrIntern GetShaderEffect() const { return m_ShaderEffect; }
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void AddShaderDefine(const char* key, const char* value);
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// conditionFlags is a bitmask representing which indexes of the
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// GetConditionalDefines() list are currently matching.
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// Use 0 if you don't care about conditional defines.
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const CShaderDefines& GetShaderDefines(uint32_t conditionFlags) const { return m_CombinedShaderDefines.at(conditionFlags); }
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void AddConditionalDefine(const char* defname, const char* defvalue, int type, std::vector<float> &args);
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const CShaderConditionalDefines& GetConditionalDefines() const { return m_ConditionalDefines; }
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void AddStaticUniform(const char* key, const CVector4D& value);
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const CShaderUniforms& GetStaticUniforms() const { return m_StaticUniforms; }
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void AddSampler(const TextureSampler& texture);
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const SamplersVector& GetSamplers() const { return m_Samplers; }
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void AddRenderQuery(const char* key);
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const CShaderRenderQueries& GetRenderQueries() const { return m_RenderQueries; }
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// Must be called after all AddShaderDefine and AddConditionalDefine
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void RecomputeCombinedShaderDefines();
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private:
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// This pointer is kept to make it easier for the fixed pipeline to
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// access the only texture it's interested in.
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CTexturePtr m_DiffuseTexture;
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SamplersVector m_Samplers;
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CStrIntern m_ShaderEffect;
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CShaderDefines m_ShaderDefines;
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CShaderConditionalDefines m_ConditionalDefines;
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std::vector<CShaderDefines> m_CombinedShaderDefines;
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CShaderUniforms m_StaticUniforms;
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CShaderRenderQueries m_RenderQueries;
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bool m_AlphaBlending;
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player_id_t m_PlayerID;
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};
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#endif
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