lldrawpool.h

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#ifndef LL_LLDRAWPOOL_H
#define LL_LLDRAWPOOL_H

#include "v4coloru.h"
#include "v2math.h"
#include "v3math.h"
#include "llvertexbuffer.h"

class LLFace;
class LLImageGL;
class LLViewerImage;
class LLSpatialGroup;
class LLDrawInfo;

#define DEFAULT_MAX_VERTICES 65535

class LLDrawPool
{
public:
        static S32 sNumDrawPools;

        enum
        {
                // Correspond to LLPipeline render type
                POOL_SKY = 1,
                POOL_STARS,
                POOL_GROUND,
                POOL_TERRAIN,   
                POOL_SIMPLE,
                POOL_BUMP,
                POOL_AVATAR,
                POOL_TREE,
                POOL_GLOW,
                POOL_ALPHA,
                POOL_WATER,
                POOL_ALPHA_POST_WATER,
                NUM_POOL_TYPES,
        };
        
        LLDrawPool(const U32 type);
        virtual ~LLDrawPool();

        virtual BOOL isDead() = 0;

        S32 getId() const { return mId; }
        U32 getType() const { return mType; }

        virtual LLViewerImage *getDebugTexture();
        virtual void beginRenderPass( S32 pass );
        virtual void endRenderPass( S32 pass );
        virtual S32      getNumPasses() { return 1; }
        virtual void render(S32 pass = 0) = 0;
        virtual void prerender() = 0;
        virtual S32 getMaterialAttribIndex() = 0;
        virtual U32 getVertexDataMask() = 0;
        virtual BOOL verify() const { return TRUE; }            // Verify that all data in the draw pool is correct!
        virtual S32 getVertexShaderLevel() const { return mVertexShaderLevel; }
        
        static LLDrawPool* createPool(const U32 type, LLViewerImage *tex0 = NULL);
        virtual LLDrawPool *instancePool() = 0; // Create an empty new instance of the pool.
        virtual LLViewerImage* getTexture() = 0;
        virtual BOOL isFacePool() { return FALSE; }
        virtual void resetDrawOrders() = 0;

        U32     getTrianglesDrawn() const;
        void resetTrianglesDrawn();
        void addIndicesDrawn(const U32 indices);

protected:
        S32 mVertexShaderLevel;
        S32     mId;
        U32 mType;                              // Type of draw pool
        S32     mIndicesDrawn;
};

class LLRenderPass : public LLDrawPool
{
public:
        enum
        {
                PASS_SIMPLE = NUM_POOL_TYPES,
                PASS_GLOW,
                PASS_FULLBRIGHT,
                PASS_INVISIBLE,
                PASS_SHINY,
                PASS_BUMP,
                PASS_GRASS,
                PASS_ALPHA,
                NUM_RENDER_TYPES,
        };

        LLRenderPass(const U32 type);
        virtual ~LLRenderPass();
        /*virtual*/ LLDrawPool* instancePool();
        /*vritual*/ S32 getMaterialAttribIndex() { return -1; }
        /*virtual*/ LLViewerImage* getDebugTexture() { return NULL; }
        LLViewerImage* getTexture() { return NULL; }
        BOOL isDead() { return FALSE; }
        void resetDrawOrders() { }

        virtual void pushBatch(LLDrawInfo& params, U32 mask, BOOL texture);
        virtual void renderGroup(LLSpatialGroup* group, U32 type, U32 mask, BOOL texture = TRUE);
        virtual void renderStatic(U32 type, U32 mask, BOOL texture = TRUE);
        virtual void renderActive(U32 type, U32 mask, BOOL texture = TRUE);
        virtual void renderInvisible(U32 mask);
        virtual void renderTexture(U32 type, U32 mask);

};

class LLFacePool : public LLDrawPool
{
public:
        typedef std::vector<LLFace*> face_array_t;
        
        enum
        {
                SHADER_LEVEL_SCATTERING = 2
        };

public:
        LLFacePool(const U32 type);
        virtual ~LLFacePool();
        
        virtual void renderForSelect() = 0;
        BOOL isDead() { return mReferences.empty(); }
        virtual void renderFaceSelected(LLFace *facep, LLImageGL *image, const LLColor4 &color,
                                                                        const S32 index_offset = 0, const S32 index_count = 0);

        virtual LLViewerImage *getTexture();
        virtual void dirtyTextures(const std::set<LLViewerImage*>& textures);

        virtual void enqueue(LLFace *face);
        virtual BOOL addFace(LLFace *face);
        virtual BOOL removeFace(LLFace *face);

        virtual BOOL verify() const;            // Verify that all data in the draw pool is correct!
        
        virtual void resetDrawOrders();
        void resetAll();

        BOOL moveFace(LLFace *face, LLDrawPool *poolp, BOOL copy_data = FALSE);

        void destroy();

        void buildEdges();

        static S32 drawLoop(face_array_t& face_list);
        static S32 drawLoopSetTex(face_array_t& face_list, S32 stage);
        void drawLoop();

        void renderVisibility();

        void addFaceReference(LLFace *facep);
        void removeFaceReference(LLFace *facep);

        void printDebugInfo() const;
        
        BOOL isFacePool() { return TRUE; }

        friend class LLFace;
        friend class LLPipeline;
public:
        face_array_t    mDrawFace;
        face_array_t    mMoveFace;
        face_array_t    mReferences;

public:
        class LLOverrideFaceColor
        {
        public:
                LLOverrideFaceColor(LLDrawPool* pool)
                        : mOverride(sOverrideFaceColor), mPool(pool)
                {
                        sOverrideFaceColor = TRUE;
                }
                LLOverrideFaceColor(LLDrawPool* pool, const LLColor4& color)
                        : mOverride(sOverrideFaceColor), mPool(pool)
                {
                        sOverrideFaceColor = TRUE;
                        setColor(color);
                }
                LLOverrideFaceColor(LLDrawPool* pool, const LLColor4U& color)
                        : mOverride(sOverrideFaceColor), mPool(pool)
                {
                        sOverrideFaceColor = TRUE;
                        setColor(color);
                }
                LLOverrideFaceColor(LLDrawPool* pool, F32 r, F32 g, F32 b, F32 a)
                        : mOverride(sOverrideFaceColor), mPool(pool)
                {
                        sOverrideFaceColor = TRUE;
                        setColor(r, g, b, a);
                }
                ~LLOverrideFaceColor()
                {
                        sOverrideFaceColor = mOverride;
                }
                void setColor(const LLColor4& color);
                void setColor(const LLColor4U& color);
                void setColor(F32 r, F32 g, F32 b, F32 a);
                BOOL mOverride;
                LLDrawPool* mPool;
                static BOOL sOverrideFaceColor;
        };
};

#endif //LL_LLDRAWPOOL_H

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