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/* Copyright (C) 2012 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* 0 A.D. is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef INCLUDED_MATERIAL
#define INCLUDED_MATERIAL
#include "graphics/ShaderDefines.h"
#include "graphics/Texture.h"
#include "ps/CStr.h"
#include "ps/CStrIntern.h"
#include "ps/Shapes.h"
#include "simulation2/helpers/Player.h"
class CMaterial
{
public:
struct TextureSampler
{
TextureSampler(const CStr &n, CTexturePtr t) : Name(n), Sampler(t) {}
TextureSampler(const CStrIntern &n, CTexturePtr t) : Name(n), Sampler(t) {}
CStrIntern Name;
CTexturePtr Sampler;
};
typedef std::vector<TextureSampler> SamplersVector;
CMaterial();
// Whether this material's shaders use alpha blending, in which case
// models using this material need to be rendered in a special order
// relative to the alpha-blended water plane
void SetUsesAlphaBlending(bool flag) { m_AlphaBlending = flag; }
bool UsesAlphaBlending() { return m_AlphaBlending; }
const CTexturePtr& GetDiffuseTexture() const { return m_DiffuseTexture; }
void SetShaderEffect(const CStr& effect);
CStrIntern GetShaderEffect() const { return m_ShaderEffect; }
// Must call RecomputeCombinedShaderDefines after this, before rendering with this material
void AddShaderDefine(CStrIntern key, CStrIntern value);
// conditionFlags is a bitmask representing which indexes of the
// GetConditionalDefines() list are currently matching.
// Use 0 if you don't care about conditional defines.
const CShaderDefines& GetShaderDefines(uint32_t conditionFlags) const { return m_CombinedShaderDefines.at(conditionFlags); }
// Must call RecomputeCombinedShaderDefines after this, before rendering with this material
void AddConditionalDefine(const char* defname, const char* defvalue, int type, std::vector<float> &args);
const CShaderConditionalDefines& GetConditionalDefines() const { return m_ConditionalDefines; }
void AddStaticUniform(const char* key, const CVector4D& value);
const CShaderUniforms& GetStaticUniforms() const { return m_StaticUniforms; }
void AddSampler(const TextureSampler& texture);
const SamplersVector& GetSamplers() const { return m_Samplers; }
void AddRenderQuery(const char* key);
const CShaderRenderQueries& GetRenderQueries() const { return m_RenderQueries; }
void AddRequiredSampler(const CStr& samplerName);
const std::vector<CStrIntern>& GetRequiredSampler() const { return m_RequiredSamplers; }
// Must be called after all AddShaderDefine and AddConditionalDefine
void RecomputeCombinedShaderDefines();
private:
// This pointer is kept to make it easier for the fixed pipeline to
// access the only texture it's interested in.
CTexturePtr m_DiffuseTexture;
SamplersVector m_Samplers;
std::vector<CStrIntern> m_RequiredSamplers;
CStrIntern m_ShaderEffect;
CShaderDefines m_ShaderDefines;
CShaderConditionalDefines m_ConditionalDefines;
std::vector<CShaderDefines> m_CombinedShaderDefines;
CShaderUniforms m_StaticUniforms;
CShaderRenderQueries m_RenderQueries;
bool m_AlphaBlending;
};
#endif
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