class Geo::GeoV128Texture

└>Geo::GeoRefCount

A really simple texture where all elements are float vectors.

Functions

Name	Description
~GeoRefCount()	Virtual destructor required to make sure that the concrete class destructor gets called.
AddRef()	Increments the reference count and return new value.
ClearToValue(v128)	Clear all pixels in this texture to the given value.
CopyUnscaled(GeoV128Texture , GeoV128Texture , GeoRect, GeoRect)	Copy a block from one texture to a different texture.
CopyUnscaledFromBuffer(v128 , u32, GeoV128Texture , GeoRect, GeoRect)	Copies from a buffer of V128s with given pitch, rather than a texture.
CopyUnscaledWithDestinationMask(GeoV128Texture , GeoV128Texture , GeoRect, GeoRect, GeoV128Texture *)	Copy a block from one texture to a different texture, with a mask specified in the destination texture space.
CopyUnscaledWithSourceMask(GeoV128Texture , GeoV128Texture , GeoRect, GeoRect, GeoV128Texture *)	Copy a block from one texture to a different texture, with a mask specified in the source texture space.
Create(s32, s32)	Create gives you back an uninitialised (values undefined!) texture of the appropriate size with a ref count of 1.
DeserialiseFrom(FILE *)	Serialise in and out.
Downsample(GeoV128Texture *)	Dest is half the size of source. Takes the average of the four values.
DrawRect(s32, s32, s32, s32, v128)	For debugging purposes.
Exists(s32, s32)	Return true if [x,y] is contained with the image.
GeoRefCount()	Default constructor. The reference count is initially zero.
GetHeight()	Return the height of this image.
GetPixels()	Return a raw pointer to the start of the pixel array.
GetPixels()	Return a const raw pointer to the start of the pixel array.
GetWidth()	Return the width of this image.
IsValid()	Checks if this texture has valid data.
MaskedIn(s32, s32)	Return true if (x, y) is in bounds for this texture, and the value of the x component is positive.
MultiplyBy(v128)	Multiply all pixels in this texture by the given value.
OutputToPFM(const char *)	Output for debugging purposes.
Release()	Decrements the reference count, deleting the object if it reaches zero.
Sample(s32, s32)	Return the Sample at position [x,y].
SerialiseTo(FILE *)	Serialise in and out.
SetSample(s32, s32, v128)	For debugging purposes.

Variables

Name	Description
s32 m_RefCount	The reference count, once it reaches zero the object deletes itself.

virtual Geo::GeoRefCount::~GeoRefCount

public: virtual ~GeoRefCount()

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

s32 Geo::GeoRefCount::AddRef

public: s32 AddRef()

Increments the reference count and return new value.

Returns

New value of reference count.

void Geo::GeoV128Texture::ClearToValue

public: void ClearToValue
(
v128 v
)

Clear all pixels in this texture to the given value.

static bool Geo::GeoV128Texture::CopyUnscaled

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.

static bool Geo::GeoV128Texture::CopyUnscaledFromBuffer

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

static bool Geo::GeoV128Texture::CopyUnscaledWithDestinationMask

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.

static bool Geo::GeoV128Texture::CopyUnscaledWithSourceMask

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.

static GeoV128Texture* Geo::GeoV128Texture::Create

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.

void Geo::GeoV128Texture::DeserialiseFrom

public: void DeserialiseFrom
(
FILE * fp
)

Serialise in and out.

void Geo::GeoV128Texture::Downsample

public: void Downsample
(
GeoV128Texture * dest
) const

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

void Geo::GeoV128Texture::DrawRect

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

For debugging purposes.

bool Geo::GeoV128Texture::Exists

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

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

Geo::GeoRefCount::GeoRefCount

public: GeoRefCount()

Default constructor. The reference count is initially zero.

s32 Geo::GeoV128Texture::GetHeight

public: s32 GetHeight() const

Return the height of this image.

v128* Geo::GeoV128Texture::GetPixels

public: v128 * GetPixels()

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

const v128* Geo::GeoV128Texture::GetPixels

public: const v128 * GetPixels() const

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

s32 Geo::GeoV128Texture::GetWidth

public: s32 GetWidth() const

Return the width of this image.

bool Geo::GeoV128Texture::IsValid

public: bool IsValid() const

Checks if this texture has valid data.

bool Geo::GeoV128Texture::MaskedIn

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.

void Geo::GeoV128Texture::MultiplyBy

public: void MultiplyBy
(
v128 multiplicand
)

Multiply all pixels in this texture by the given value.

bool Geo::GeoV128Texture::OutputToPFM

public: bool OutputToPFM
(
const char * filename
) const

Output for debugging purposes.

s32 Geo::GeoRefCount::Release

public: s32 Release()

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

Returns

Returns reference count after decrement. 0 if deleted.

v128 Geo::GeoV128Texture::Sample

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

Return the Sample at position [x,y].

bool Geo::GeoV128Texture::SerialiseTo

public: bool SerialiseTo
(
FILE * fp
) const

Serialise in and out.

void Geo::GeoV128Texture::SetSample

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

For debugging purposes.

Browser not supported