fsCVertexRenderer.h

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/********************************************************************
*
*       File:           fsCRenderer.h
*
*       Purpose:        cocos2d-x implementation for fsIRenderer
*
*********************************************************************/
 
#ifndef fsCRendererhdr
#define fsCRendererhdr
 
#include "../../../fsIRenderer.h"
 
#if defined fsVertexRenderer
 
#include "fsIRenderCommand.h"
 
class fsCTexture;
 
class fsCRenderCommandTriangle;
class fsCRenderCommandTriangleShaded;
class fsCRenderCommandLine;
 
class fsCRenderer : public fsIRenderer
{
        friend class fsIRenderer;
        friend class fsCVertexStreamSpriteRenderData;
        friend class fsCVertexStreamLineRenderData;
 
public:
 
        virtual ~fsCRenderer();
 
protected:
 
        void frameStartDo() override;
        void begin2dDo() override;
        void end2dDo() override;
        void begin3dDo() override;
        void end3dDo() override;
        void frameEndDo() override;
 
        void initialiseDo() override;
        void uninitialiseDo() override;
 
        void spriteBatchRender(fsS32 pFirstMaterialIndex, fsS32 pLastMaterialIndex) override;
        void textBatchRender(fsS32 pFirstFontIndex, fsS32 pLastFontIndex) override;
        void lineBatchRender(fsS32 pBatchIndex) override;
        void textEntryBatchRender(fsITextEntryRenderData* pTextEntry) override;
 
#if defined fs3d
        virtual void sprite3dBatchRender(fsC3dSceneSprite* const pScene) override;
#endif
 
        fsCRenderer(fsS32 pMaxSprites, fsS32 pMaxMaterialChanges);
 
private:
 
        fsS32 numVertsGet(fsS32 pMaterial) const;
 
        fsIRendererCommand* spriteBatchDataAllocateFromCache(fsCTexture const* pTexture, fsS32 pNumVerts);
        void spriteBatchDataPopulate(fsIRendererCommand* pRenderCommand, fsS32 pMaterial);
 
        fsIRendererCommand* lineBatchDataAllocateFromCache(fsS32 pNumVerts);
        void lineBatchDataPopulate(fsIRendererCommand* pRenderCommand, fsS32 pBatchIndex);
 
        fsS32 mSpriteIndex;
        fsS32 mTxtSprIndex;
        fsS32 mLineBatch;
 
        fsF32 mZoom;
        fsF32 mTrackingScale;
 
        std::vector<fsIRendererCommand*> mRenderCommands;
 
 
        template <typename TRenderCommand>
        struct fsRenderCommandCache
        {
                std::vector<std::unique_ptr<TRenderCommand>> mRenderTriangleCommands;
                typename std::vector<std::unique_ptr<TRenderCommand>>::iterator mCurr;
 
                void init();
                TRenderCommand* get(fsCTexture const* pTexture, fsS32 pNumVerts);
                TRenderCommand* get(fsS32 pNumVerts);
        };
 
        fsRenderCommandCache<fsCRenderCommandTriangle> mTriangleCache;
        fsRenderCommandCache<fsCRenderCommandTriangleShaded> mTriangleShadedCache;
        fsRenderCommandCache<fsCRenderCommandLine> mLineCache;
};
 
 
template <typename TRenderCommand>
TRenderCommand* const fsCRenderer::fsRenderCommandCache<TRenderCommand>::get(
        fsCTexture const* const pTexture, fsS32 pNumVerts)
{
        if (mCurr != mRenderTriangleCommands.end())
        {
                auto command = (*mCurr++).get();
                command->init(pTexture, pNumVerts);
                return command;
        }
        mRenderTriangleCommands.emplace_back(new TRenderCommand(pTexture, pNumVerts));
        mCurr = mRenderTriangleCommands.end();
        return mRenderTriangleCommands.back().get();
};
 
template <typename TRenderCommand>
TRenderCommand* const fsCRenderer::fsRenderCommandCache<TRenderCommand>::get(fsS32 pNumVerts)
{
        if (mCurr != mRenderTriangleCommands.end())
        {
                auto command = (*mCurr++).get();
                command->init(pNumVerts);
                return command;
        }
        mRenderTriangleCommands.emplace_back(new TRenderCommand(pNumVerts));
        mCurr = mRenderTriangleCommands.end();
        return mRenderTriangleCommands.back().get();
};
 
template <typename TRenderCommand>
void fsCRenderer::fsRenderCommandCache<TRenderCommand>::init()
{
        mCurr = mRenderTriangleCommands.begin();
};
 
 
#endif
#endif