Texture

Internals of the Texture module. More...

Collaboration diagram for Texture:

Files
file	texture.c
file	texture_p.h

Classes
struct	SRPTexture
#define	N_CHANNELS_REQUESTED   3
SRPTexture *	srpNewTexture (const char *image, SRPTextureWrappingMode wrappingModeX, SRPTextureWrappingMode wrappingModeY)
void	srpFreeTexture (SRPTexture *this)
void	srpTextureGetFilteredColor (const SRPTexture *this, float u, float v, float out[4])
int	srpTextureGet (SRPTexture *this, SRPTextureParameter parameter)
void	srpTextureSet (SRPTexture *this, SRPTextureParameter parameter, int data)

Detailed Description

Internals of the Texture module.

See also

Texture

Macro Definition Documentation

N_CHANNELS_REQUESTED

#define N_CHANNELS_REQUESTED   3

Number of channels requested from the stbi_load() call.

Function Documentation

srpFreeTexture()

void srpFreeTexture

(

SRPTexture *

this

)

Free a texture

Parameters

[in]

this

A pointer to the texture, as returned by srpNewTexture()

srpNewTexture()

SRPTexture * srpNewTexture	(	const char *	image,
		SRPTextureWrappingMode	wrappingModeX,
		SRPTextureWrappingMode	wrappingModeY
	)

Initialize a texture by loading an image

Parameters

[in]	image	A filesystem path to an image. Most popular image types are supported
[in]	wrappingModeX,wrappingModeY	Wrapping modes to use in X and Y axes

Returns

A pointer to the constructed texture

srpTextureGet()

int srpTextureGet	(	SRPTexture *	this,
		SRPTextureParameter	parameter
	)

Get a parameter from existing SRPTexture

Parameters

[in]	this	A pointer to texture
[in]	parameter	A struct member to get

Returns

Requested member, or -1 on failure

srpTextureGetFilteredColor()

void srpTextureGetFilteredColor	(	const SRPTexture *	this,
		float	u,
		float	v,
		float	out[4]
	)

Get a texel color at u, v by filtering the texture using specified modes

Parameters

[in]	this	A pointer to the texture, as returned by srpNewTexture()
[in]	u,v	Coordinates of the requested texel
[out]	out	An array of 4 values each in [0, 1] interval, representing RGBA8888 color (0.0 = 0x0; 1.0 = 0xFF)

srpTextureSet()

void srpTextureSet	(	SRPTexture *	this,
		SRPTextureParameter	parameter,
		int	data
	)

Set a parameter to existing SRPTexture

Parameters

[in]	this	A pointer to texture
[in]	parameter	A struct member to set to
[in]	data	A value to set