forked from 0ad/0ad
Ykkrosh
67a94572ec
Replace almost all texture uses with calls to the new system. Add some anistropic filtering to terrain textures. Let Atlas load terrain texture previews partly-asynchronously by polling. Fix inefficient texture colour determination for minimap. Remove unused global g_TerrainModified. Change GUI texcoord computation to be less efficient but to cope with dynamic texture changes. Fix GUI renderer effects leaving bogus colour state. This was SVN commit r8099.
130 lines
3.5 KiB
C++
130 lines
3.5 KiB
C++
/* Copyright (C) 2009 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_PATCHRDATA
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#define INCLUDED_PATCHRDATA
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#include <vector>
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#include "graphics/SColor.h"
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#include "maths/Vector3D.h"
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#include "graphics/RenderableObject.h"
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#include "VertexBufferManager.h"
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class CPatch;
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class CTerrainTextureEntry;
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//////////////////////////////////////////////////////////////////////////////////////////////////
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// CPatchRData: class encapsulating logic for rendering terrain patches; holds per
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// patch data, plus some supporting static functions for batching, etc
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class CPatchRData : public CRenderData
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{
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public:
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CPatchRData(CPatch* patch);
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~CPatchRData();
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void Update();
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void RenderBase(bool losColor);
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void RenderBlends();
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void RenderOutline();
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void RenderStreams(int streamflags, bool losColor);
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private:
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struct SSplat {
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SSplat() : m_Texture(0), m_IndexCount(0) {}
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// texture to apply during splat
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CTerrainTextureEntry* m_Texture;
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// offset into the index array for this patch where splat starts
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size_t m_IndexStart;
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// number of indices used by splat
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size_t m_IndexCount;
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};
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struct SBaseVertex {
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// vertex position
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CVector3D m_Position;
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// diffuse color from sunlight
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SColor4ub m_DiffuseColor;
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// vertex uvs for base texture
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float m_UVs[2];
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// color modulation from LOS
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SColor4ub m_LOSColor;
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};
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struct SBlendVertex {
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// vertex position
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CVector3D m_Position;
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// color modulation from LOS
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SColor4ub m_LOSColor;
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// vertex uvs for base texture
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float m_UVs[2];
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// vertex uvs for alpha texture
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float m_AlphaUVs[2];
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};
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struct STex {
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bool operator==(const STex& rhs) const { return m_Texture==rhs.m_Texture; }
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bool operator<(const STex& rhs) const { return m_Priority<rhs.m_Priority; }
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CTerrainTextureEntry* m_Texture;
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int m_Priority;
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};
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// build this renderdata object
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void Build();
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void BuildBlends();
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void BuildIndices();
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void BuildVertices();
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// owner patch
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CPatch* m_Patch;
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// vertex buffer handle for base vertices
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CVertexBuffer::VBChunk* m_VBBase;
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// vertex buffer handle for blend vertices
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CVertexBuffer::VBChunk* m_VBBlends;
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// patch render vertices
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SBaseVertex* m_Vertices;
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// indices into base vertices for the base splats
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std::vector<unsigned short> m_Indices;
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// indices into base vertices for the shadow map pass
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std::vector<unsigned short> m_ShadowMapIndices;
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// list of base splats to apply to this patch
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std::vector<SSplat> m_Splats;
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// vertices to use for blending transition texture passes
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std::vector<SBlendVertex> m_BlendVertices;
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// remembers the index in the m_Vertices array of each blend vertex, so that we can
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// properly update its color for fog of war and shroud of darkness
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std::vector<size_t> m_BlendVertexIndices;
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// indices into blend vertices for the blend splats
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std::vector<unsigned short> m_BlendIndices;
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// splats used in blend pass
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std::vector<SSplat> m_BlendSplats;
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};
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#endif
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