mpeg4_gradients.c File Reference

#include "nodes_stacks.h"
#include "texturing.h"

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Data Structures
struct	GradientStack

Macros
#define	GRAD_TEXTURE_SIZE   128
#define	GRAD_TEXTURE_HSIZE   64

Enumerations
enum	{ GF_SR_TEXTURE_GRAD_REGISTERED = 1<<6, GF_SR_TEXTURE_GRAD_NO_RGB = 1<<7 }

Functions
void	GradientGetMatrix (GF_Node *transform, GF_Matrix2D *mat)
static void	DestroyGradient (GF_Node *node, void *rs, Bool is_destroy)
static void	UpdateLinearGradient (GF_TextureHandler *txh)
static void	LG_ComputeMatrix (GF_TextureHandler *txh, GF_Rect *bounds, GF_Matrix2D *mat, Bool for_3d)
static void	BuildLinearGradientTexture (GF_TextureHandler *txh)
void	compositor_init_linear_gradient (GF_Compositor *compositor, GF_Node *node)
static void	BuildRadialGradientTexture (GF_TextureHandler *txh)
static void	UpdateRadialGradient (GF_TextureHandler *txh)
static void	RG_ComputeMatrix (GF_TextureHandler *txh, GF_Rect *bounds, GF_Matrix2D *mat, Bool for_3d)
void	compositor_init_radial_gradient (GF_Compositor *compositor, GF_Node *node)
GF_TextureHandler *	compositor_mpeg4_get_gradient_texture (GF_Node *node)
void	compositor_gradient_update (GF_TextureHandler *txh)

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Data Structure Documentation

struct GradientStack

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Data Fields
GF_TextureHandler	txh
char *	tx_data

Macro Definition Documentation

#define GRAD_TEXTURE_SIZE   128

#define GRAD_TEXTURE_HSIZE   64

Enumeration Type Documentation

anonymous enum

Enumerator
GF_SR_TEXTURE_GRAD_REGISTERED
GF_SR_TEXTURE_GRAD_NO_RGB

Function Documentation

void GradientGetMatrix	(	GF_Node *	transform,
		GF_Matrix2D *	mat
	)

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static void DestroyGradient ( GF_Node *  node, void *  rs, Bool  is_destroy  )

static

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static void UpdateLinearGradient ( GF_TextureHandler *  txh )

static

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static void LG_ComputeMatrix ( GF_TextureHandler *  txh, GF_Rect *  bounds, GF_Matrix2D *  mat, Bool  for_3d  )

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static void BuildLinearGradientTexture ( GF_TextureHandler *  txh )

static

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void compositor_init_linear_gradient	(	GF_Compositor *	compositor,
		GF_Node *	node
	)

!! Gradients are textures but are not registered as textures with the compositor in order to avoid updating too many textures each frame - gradients are only registered with the compositor when they are used in OpenGL, in order to release associated HW resource when no longer used

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static void BuildRadialGradientTexture ( GF_TextureHandler *  txh )

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static void UpdateRadialGradient ( GF_TextureHandler *  txh )

static

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static void RG_ComputeMatrix ( GF_TextureHandler *  txh, GF_Rect *  bounds, GF_Matrix2D *  mat, Bool  for_3d  )

static

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void compositor_init_radial_gradient	(	GF_Compositor *	compositor,
		GF_Node *	node
	)

!! Gradients are textures but are not registered as textures with the compositor in order to avoid updating too many textures each frame - gradients are only registered with the compositor when they are used in OpenGL, in order to release associated HW resource when no longer used

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GF_TextureHandler* compositor_mpeg4_get_gradient_texture

(

GF_Node *

node

)

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void compositor_gradient_update

(

GF_TextureHandler *

txh

)

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