texture.c File Reference

#include "texture.h"
#include <math.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "message_callback_p.h"
#include "defines.h"
#include "math_utils.h"
#include "stb_image.h"
#include "utils.h"
#include "vec.h"
#include "texture_p.h"

Include dependency graph for texture.c:

Functions
SRPTexture *	srpNewTexture (const char *image, SRPTextureWrappingMode wrappingModeX, SRPTextureWrappingMode wrappingModeY, SRPTextureFilteringMode filteringModeMagnifying, SRPTextureFilteringMode filteringModeMinifying)
void	srpFreeTexture (SRPTexture *this)
void	srpTextureGetFilteredColor (const SRPTexture *this, double u, double v, double out[4])
int	srpTextureGet (SRPTexture *this, SRPTextureParameter parameter)
void	srpTextureSet (SRPTexture *this, SRPTextureParameter parameter, int data)
#define	N_CHANNELS_REQUESTED   3
static vec4d	textureGetColor (const SRPTexture *this, size_t x, size_t y)

Detailed Description

Texture implementation

Function Documentation

srpFreeTexture()

void srpFreeTexture

(

SRPTexture *

this

)

Free a texture

Parameters

[in]

this

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

Examples

03_spinning_textured_cube/main.c.

srpNewTexture()

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

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
[in]	filteringModeMagnifying,filteringModeMinifying	Texture filtering mode to use when magnifying or minifying the texture

Returns

A pointer to the constructed texture

Examples

03_spinning_textured_cube/main.c.

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,
		double	u,
		double	v,
		double	out[4]
	)

Todo:

Now using only filteringModeMagnifying; how to know if texture is magnified or minified?

Too many conditionals?

wrappingMode is untested!

Examples

03_spinning_textured_cube/main.c.

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