Enum for the storage type of the texture, which will affect memory utilization on the GPU. More...

#include </home/werner/origo/vish/ocean/Anemonia/RenderBasin.hpp>

Public Types

enum BitPrecision {
Unspecified, Bit4, Bit8, Bit12,
Bit16, HalfFloat, Float, Double
}
The numerical precision of the textur. More...
enum ColorMode { None, Gray, Rgb, Automatic }
Options for color channels in the texture. More...

Public Member Functions

bool isIntensityTexture () const
Check if this is supposed to be an intensity texture.
TextureStorageFormat (bool doAlpha=false, ColorMode theColors=None, BitPrecision theAlphaBits=Unspecified, BitPrecision theColorBits=Unspecified, bool doCompression=true)
Construct a texture storage format.

Public Attributes

unsigned Alpha:1
Include alpha channel (boolean)
BitPrecision AlphaBits:3
Numerical precision for alpha channel.
BitPrecision ColorBits:3
Numerical precision for color channel.
ColorMode Colors:2
How many color channels to include.
unsigned Compressed:1
Enable Texture compression, if possible for the specified precision.

Detailed Description

Enum for the storage type of the texture, which will affect memory utilization on the GPU.

OpenGL specifies a set of texture storage options such as described at http://www.opengl.org/wiki/Image_Format and http://www.opengl.org/registry/specs/ARB/texture_compression.txt

This class tries to match these using a some bit structure clarifying the requestable properties. Not all texture storage format are available through this API, but since the driver implementation is free to chose another storage anyway this might not be of much relevance in practice. Specifying a specific storage layout is anticipated to be easier using this structure.

The intensity texture format replicates the single intensity component value in the red, green, blue, and alpha channels.

Member Enumeration Documentation

enum Wizt::RenderBasin::TextureStorageFormat::BitPrecision

The numerical precision of the textur.

Enumerator:

Unspecified	leave to driver implementation
Bit4	4 Bit
Bit8	8 Bit
Bit12	12 Bit
Bit16	16 Bit integer
HalfFloat	16 bit floating point format
Float	32 bit floating point format

enum Wizt::RenderBasin::TextureStorageFormat::ColorMode

Options for color channels in the texture.

Enumerator:

None	no colors
Gray	same color for red, green, blue
Rgb	include three separate channels for red, green, blue
Automatic	Let the implementation figure out something itself.

Constructor & Destructor Documentation

Wizt::RenderBasin::TextureStorageFormat::TextureStorageFormat	(	bool	doAlpha = `false`,
		ColorMode	theColors = `None`,
		BitPrecision	theAlphaBits = `Unspecified`,
		BitPrecision	theColorBits = `Unspecified`,
		bool	doCompression = `true`
	)		`[inline]`

Construct a texture storage format.

Note that if both Alpha is false and Colors is set to None, then this texture is interpreted as an Intensity texture which has all four channels set from the same one storage value.

Member Data Documentation

unsigned Wizt::RenderBasin::TextureStorageFormat::Compressed

Enable Texture compression, if possible for the specified precision.

http://www.opengl.org/registry/specs/ARB/texture_compression.txt

The documentation for this struct was generated from the following file:

ocean/Anemonia/RenderBasin.hpp