└>Geo::GeoRefCount

A really simple texture where all elements are float vectors.

public: virtual ~GeoRefCount()

Virtual destructor required to make sure that the concrete class destructor gets called.

public: s32 AddRef()

Increments the reference count and return new value.

New value of reference count.

public: void ClearToValue
(
    v128 v
)

Clear all pixels in this texture to the given value.

public: bool CopyUnscaled
(
    GeoV128Texture * source,
    GeoV128Texture * target,
    GeoRect sourceBB,
    GeoRect targetBB
)

Copy a block from one texture to a different texture.

It expects a one to one correspondence between the pixels in each bounding box - no scaling is applied and it will return false if this isn't met. All parameters must be valid.

public: bool CopyUnscaledFromBuffer
(
    v128 * source,
    u32 sourcePitch,
    GeoV128Texture * target,
    GeoRect sourceBB,
    GeoRect targetBB
)

Copies from a buffer of V128s with given pitch, rather than a texture.

Otherwise the same as CopyUnscaled

public: bool CopyUnscaledWithDestinationMask
(
    GeoV128Texture * source,
    GeoV128Texture * target,
    GeoRect sourceBB,
    GeoRect targetBB,
    GeoV128Texture * mask
)

Copy a block from one texture to a different texture, with a mask specified in the destination texture space.

Same as CopyUnscaled but only copies where the mask is non-zero in the X co-ord.

public: bool CopyUnscaledWithSourceMask
(
    GeoV128Texture * source,
    GeoV128Texture * target,
    GeoRect sourceBB,
    GeoRect targetBB,
    GeoV128Texture * mask
)

Copy a block from one texture to a different texture, with a mask specified in the source texture space.

Same as CopyUnscaled but only copies where the mask is non-zero in the X co-ord.

public: GeoV128Texture * Create
(
    s32 w,
    s32 h
)

Create gives you back an uninitialised (values undefined!) texture of the appropriate size with a ref count of 1.

So no need to AddRef it immediately.

public: void DeserialiseFrom
(
    FILE * fp
)

Serialise in and out.

public: void Downsample
(
    GeoV128Texture * dest
) const

Dest is half the size of source. Takes the average of the four values.

public: void DrawRect
(
    s32 x,
    s32 y,
    s32 w,
    s32 h,
    v128 value
)

For debugging purposes.

public: bool Exists
(
    s32 x,
    s32 y
) const

Return true if [x,y] is contained with the image.

public: GeoRefCount()

Default constructor. The reference count is initially zero.

public: s32 GetHeight() const

Return the height of this image.

public: v128 * GetPixels()

Return a raw pointer to the start of the pixel array.

public: const v128 * GetPixels() const

Return a const raw pointer to the start of the pixel array.

public: s32 GetWidth() const

Return the width of this image.

public: bool IsValid() const

Checks if this texture has valid data.

public: bool MaskedIn
(
    s32 x,
    s32 y
) const

Return true if (x, y) is in bounds for this texture, and the value of the x component is positive.

public: void MultiplyBy
(
    v128 multiplicand
)

Multiply all pixels in this texture by the given value.

public: bool OutputToPFM
(
    const char * filename
) const

Output for debugging purposes.

public: s32 Release()

Decrements the reference count, deleting the object if it reaches zero.

Returns reference count after decrement. 0 if deleted.

public: v128 Sample
(
    s32 x,
    s32 y
) const

Return the Sample at position [x,y].

public: bool SerialiseTo
(
    FILE * fp
) const

Serialise in and out.

public: void SetSample
(
    s32 x,
    s32 y,
    v128 value
)

For debugging purposes.