CzPlatformRender.h

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// 
//
// AppEasy SDK - Cross Platform Multi-purpose Game and App Engine
//
// Developed by Matthew Hopwood of Pocketeers Limited - www.pocketeers.co.uk
//
// For updates, tutorials and more details check out www.appeasymobile.com
//
// This code is provided free of charge and without any warranty whatsoever. You must ensure that this whole notice is present in all files and derivatives, so the reader knows its origin.
// If you use this SDK in your product then please ensure that you credit AppEasy's usage appropriately. Please see www.appeasymobile.com for licensing details and support
//
//

#if !defined(_CCZ_PLATFORM_RENDER_H_)
#define _CCZ_PLATFORM_RENDER_H_

#include "IwGx.h"
#include "IzPlatformRender.h"
#include "CzRender.h"



class CzPlatformRender : public IzPlatformRender
{
    // Properties
protected:
    CzTexture               CurrentTexture;
    eCzAlphaMode            CurrentAlphaMode;
    bool                    CurrentTiled;
    bool                    CurrentFilter;
    int                     RedundantTextureCalls;
    CzRenderPrim**          Primitives;
    int                     NextPrimitive;
    int                     MaxPrimitives;
    CzRenderMaterial**      Materials;
    int*                    MaterialUsedCounts;
    int                     NextMaterial;
    int                     MaxMaterials;
    int*                    MaterialIndices;
    CzVec2**                BatchVerts;
    CzVec2**                BatchUVs;
    CzColour**              BatchColours;
    uint16**                BatchIndices;

    static bool             ClipRectModified;       // true if clipping rect has been modified
    static CzIRect          ScreenClipRect;         // Current transformed screen clipping rect
public:
    // Properties end
protected:
    static IwGxPrimType     CzToIwGxPrimType[16];

public:
    // Init
    int             Init(int max_primitives = 1024, int max_materials = 100);
    void            Release();

    // Pre-post render
    void            Begin();
    void            End();

    // Primitive rendering
    void            DrawPrimitives(CzRenderPrim* prims, CzRenderMaterial* materials, int num_prims, bool single_material);
    void            DrawPrimitives(CzRenderPrim3* prims, CzRenderMaterial* materials, int num_prims, bool single_material);
    void            DrawText(CzFontPreparedText prepared_text, CzFont* font, CzMatrix3* transform, const CzColour& colour, CzVec4& skew, bool filter, eCzAlphaMode alpha_mode);

    // Batch rendering
    void            AddPrimtives(CzRenderPrim* prims, CzRenderMaterial* materials, int num_prims, bool single_material);
    int             AddMaterial(CzRenderMaterial* material);
    void            BatchDrawPrims(bool filter = true);

    // Global clipping
    void            SetClipRect(int x, int y, int w, int h);
    void            UpdateClipRect(int x, int y, int w, int h);
    CzIRect         GetClipRect() const                     { return ScreenClipRect; }
    void            ResetClipRect();
    bool            isFullyClipped(const CzIRect& rc) const;
    void            setClipRectModified(bool modified)      { ClipRectModified = modified; }
    bool            wasClipRectModified() const             { return ClipRectModified; }

    // Matrices and projection
    void            SetOrthoProjection(float left, float right, float bottom, float top, float nearz, float farz);
    void            SetPerspectiveMatrix(CzMatrix4* mat);
    void            SetModelMatrix(CzMatrix4* mat);
    void            SetViewMatrix(CzMatrix4* mat);
};


#endif  // _CCZ_PLATFORM_RENDER_H_