// Exposed constants:
enum {
    MinFilter_Nearest = 0,
    MinFilter_Linear = 1,
    MinFilter_NearestMipNearest = 2,
    MinFilter_NearestMipLinear = 3,
    MinFilter_LinearMipNearest = 4,
    MinFilter_LinearMipLinear = 5,
    MinFilter_Invalid = 6,
    MagFilter_Nearest = 0,
    MagFilter_Linear = 1,
    MagFilter_Invalid = 2,
    WrapMode_Repeat = 0,
    WrapMode_Clamp = 1,
    WrapMode_Invalid = 2
};
// They are the same between both renderers

// GLES conversion tables:
static GLint const minfiltertable[] = {
    GL_NEAREST,
    GL_LINEAR,
    GL_NEAREST_MIPMAP_NEAREST,
    GL_NEAREST_MIPMAP_LINEAR,
    GL_LINEAR_MIPMAP_NEAREST,
    GL_LINEAR_MIPMAP_LINEAR
};
static GLint const magfiltertable[] = {
    GL_NEAREST,
    GL_LINEAR
};
static GLint const wrapmodetable[] = {
    GL_REPEAT,
    GL_CLAMP_TO_EDGE
};

// D3D conversion tables:
static int const minfiltertable[] = {
    D3DTEXF_POINT,
    D3DTEXF_LINEAR,
    D3DTEXF_POINT,
    D3DTEXF_LINEAR,
    D3DTEXF_POINT,
    D3DTEXF_LINEAR
};
static int const mipfiltertable[] = {
    D3DTEXF_NONE,
    D3DTEXF_NONE,
    D3DTEXF_POINT,
    D3DTEXF_POINT,
    D3DTEXF_LINEAR,
    D3DTEXF_LINEAR
};
static int const magfiltertable[] = {
    D3DTEXF_POINT,
    D3DTEXF_LINEAR
};
static int const wrapmodetable[] = {
    D3DTADDRESS_WRAP,
    D3DTADDRESS_CLAMP
};

// Where both my module and GLES use a single state variable for minification filtering, D3D exposes two different variables: D3DSAMP_MINFILTER controls how a single particular mip-level is sampled and D3DSAMP_MIPFILTER controls whether mip-levels are used and whether neighbouring mip-levels are blended together.