$#include "Graphics/GraphicsDefs.h"

enum PrimitiveType
{
    TRIANGLE_LIST = 0,
    LINE_LIST,
    POINT_LIST,
    TRIANGLE_STRIP,
    LINE_STRIP,
    TRIANGLE_FAN
};

enum GeometryType
{
    GEOM_STATIC = 0,
    GEOM_SKINNED = 1,
    GEOM_INSTANCED = 2,
    GEOM_BILLBOARD = 3,
    GEOM_STATIC_NOINSTANCING = 4,
    MAX_GEOMETRYTYPES = 4,
};

enum BlendMode
{
    BLEND_REPLACE = 0,
    BLEND_ADD,
    BLEND_MULTIPLY,
    BLEND_ALPHA,
    BLEND_ADDALPHA,
    BLEND_PREMULALPHA,
    BLEND_INVDESTALPHA,
    BLEND_SUBTRACT,
    BLEND_SUBTRACTALPHA,
    MAX_BLENDMODES
};

enum CompareMode
{
    CMP_ALWAYS = 0,
    CMP_EQUAL,
    CMP_NOTEQUAL,
    CMP_LESS,
    CMP_LESSEQUAL,
    CMP_GREATER,
    CMP_GREATEREQUAL,
    MAX_COMPAREMODES
};

enum CullMode
{
    CULL_NONE = 0,
    CULL_CCW,
    CULL_CW,
    MAX_CULLMODES
};

enum FillMode
{
    FILL_SOLID = 0,
    FILL_WIREFRAME,
    FILL_POINT
};

enum StencilOp
{
    OP_KEEP = 0,
    OP_ZERO,
    OP_REF,
    OP_INCR,
    OP_DECR
};

enum LockState
{
    LOCK_NONE = 0,
    LOCK_HARDWARE,
    LOCK_SHADOW,
    LOCK_SCRATCH
};

enum LegacyVertexElement
{
    ELEMENT_POSITION = 0,
    ELEMENT_NORMAL,
    ELEMENT_COLOR,
    ELEMENT_TEXCOORD1,
    ELEMENT_TEXCOORD2,
    ELEMENT_CUBETEXCOORD1,
    ELEMENT_CUBETEXCOORD2,
    ELEMENT_TANGENT,
    ELEMENT_BLENDWEIGHTS,
    ELEMENT_BLENDINDICES,
    ELEMENT_INSTANCEMATRIX1,
    ELEMENT_INSTANCEMATRIX2,
    ELEMENT_INSTANCEMATRIX3,
    ELEMENT_OBJECTINDEX,
    MAX_LEGACY_VERTEX_ELEMENTS
};

enum VertexElementType
{
    TYPE_INT = 0,
    TYPE_FLOAT,
    TYPE_VECTOR2,
    TYPE_VECTOR3,
    TYPE_VECTOR4,
    TYPE_UBYTE4,
    TYPE_UBYTE4_NORM,
    MAX_VERTEX_ELEMENT_TYPES
};

enum VertexElementSemantic
{
    SEM_POSITION = 0,
    SEM_NORMAL,
    SEM_BINORMAL,
    SEM_TANGENT,
    SEM_TEXCOORD,
    SEM_COLOR,
    SEM_BLENDWEIGHTS,
    SEM_BLENDINDICES,
    SEM_OBJECTINDEX,
    MAX_VERTEX_ELEMENT_SEMANTICS
};

enum TextureFilterMode
{
    FILTER_NEAREST = 0,
    FILTER_BILINEAR,
    FILTER_TRILINEAR,
    FILTER_ANISOTROPIC,
    FILTER_NEAREST_ANISOTROPIC,
    FILTER_DEFAULT,
    MAX_FILTERMODES
};

enum TextureAddressMode
{
    ADDRESS_WRAP = 0,
    ADDRESS_MIRROR,
    ADDRESS_CLAMP,
    ADDRESS_BORDER,
    MAX_ADDRESSMODES
};

enum TextureCoordinate
{
    COORD_U = 0,
    COORD_V,
    COORD_W,
    MAX_COORDS
};

enum TextureUsage
{
    TEXTURE_STATIC = 0,
    TEXTURE_DYNAMIC,
    TEXTURE_RENDERTARGET,
    TEXTURE_DEPTHSTENCIL
};

enum CubeMapFace
{
    FACE_POSITIVE_X = 0,
    FACE_NEGATIVE_X,
    FACE_POSITIVE_Y,
    FACE_NEGATIVE_Y,
    FACE_POSITIVE_Z,
    FACE_NEGATIVE_Z,
    MAX_CUBEMAP_FACES
};

enum RenderSurfaceUpdateMode
{
    SURFACE_MANUALUPDATE = 0,
    SURFACE_UPDATEVISIBLE,
    SURFACE_UPDATEALWAYS
};

enum ShaderType
{
    VS = 0,
    PS,
};

// Texture unit numbering depends on graphics capability (mobile or desktop). Expose only the units we are sure of
enum TextureUnit
{
    TU_DIFFUSE = 0,
    TU_ALBEDOBUFFER = 0,
    TU_NORMAL = 1,
    TU_NORMALBUFFER = 1,
    TU_SPECULAR = 2,
    TU_EMISSIVE = 3,
    TU_ENVIRONMENT = 4,
};

enum FaceCameraMode
{
    FC_NONE = 0,
    FC_ROTATE_XYZ,
    FC_ROTATE_Y,
    FC_LOOKAT_XYZ,
    FC_LOOKAT_Y,
    FC_LOOKAT_MIXED,
    FC_DIRECTION
};

/// Shadow type
enum ShadowQuality
{
    SHADOWQUALITY_SIMPLE_16BIT = 0,
    SHADOWQUALITY_SIMPLE_24BIT,
    SHADOWQUALITY_PCF_16BIT,
    SHADOWQUALITY_PCF_24BIT,
    SHADOWQUALITY_VSM,
    SHADOWQUALITY_BLUR_VSM
};

struct VertexElement
{
    VertexElement();
    VertexElement(VertexElementType type, VertexElementSemantic semantic, unsigned char index = 0, bool perInstance = false);

    VertexElementType type_ @ type;
    VertexElementSemantic semantic_ @ semantic;
    unsigned char index_ @ index;
    bool perInstance_ @ perInstance;
    unsigned offset_ @ offset;
};


static const int QUALITY_LOW;
static const int QUALITY_MEDIUM;
static const int QUALITY_HIGH;
static const int QUALITY_MAX;

static const unsigned CLEAR_COLOR;
static const unsigned CLEAR_DEPTH;
static const unsigned CLEAR_STENCIL;

static const unsigned MASK_NONE;
static const unsigned MASK_POSITION;
static const unsigned MASK_NORMAL;
static const unsigned MASK_COLOR;
static const unsigned MASK_TEXCOORD1;
static const unsigned MASK_TEXCOORD2;
static const unsigned MASK_CUBETEXCOORD1;
static const unsigned MASK_CUBETEXCOORD2;
static const unsigned MASK_TANGENT;
static const unsigned MASK_BLENDWEIGHTS;
static const unsigned MASK_BLENDINDICES;
static const unsigned MASK_INSTANCEMATRIX1;
static const unsigned MASK_INSTANCEMATRIX2;
static const unsigned MASK_INSTANCEMATRIX3;
static const unsigned MASK_OBJECTINDEX;