interpretdfd.c File Reference

Utility for interpreting a data format descriptor. More...

#include <stdint.h>
#include <stdio.h>
#include <KHR/khr_df.h>
#include "dfd.h"

Functions
enum InterpretDFDResult	interpretDFD (const uint32_t *DFD, InterpretedDFDChannel *R, InterpretedDFDChannel *G, InterpretedDFDChannel *B, InterpretedDFDChannel *A, uint32_t *wordBytes)
	Interpret a Data Format Descriptor for a simple format.

Detailed Description

Utility for interpreting a data format descriptor.

Author

Andrew Garrard

Function Documentation

interpretDFD()

enum InterpretDFDResult interpretDFD	(	const uint32_t *	DFD,
		InterpretedDFDChannel *	R,
		InterpretedDFDChannel *	G,
		InterpretedDFDChannel *	B,
		InterpretedDFDChannel *	A,
		uint32_t *	wordBytes
	)

Interpret a Data Format Descriptor for a simple format.

Parameters

DFD	Pointer to a Data Format Descriptor to interpret, described as 32-bit words in native endianness. Note that this is the whole descriptor, not just the basic descriptor block.
R	Information about the decoded red channel or the depth channel, if any.
G	Information about the decoded green channel or the stencil channel, if any.
B	Information about the decoded blue channel, if any.
A	Information about the decoded alpha channel, if any.
wordBytes	Byte size of the channels (unpacked) or total size (packed).

Returns

An enumerant describing the decoded value, or an error code in case of failure.