graph_vram.h File Reference

Go to the source code of this file.

Macros
#define	GRAPH_VRAM_MAX_WORDS   1048576
#define	GRAPH_ALIGN_PAGE   2048
#define	GRAPH_ALIGN_BLOCK   64

Functions
int	graph_vram_allocate (int width, int height, int psm, int alignment)
void	graph_vram_free (int address)
void	graph_vram_clear (void)
int	graph_vram_size (int width, int height, int psm, int alignment)

Detailed Description

Graph library VRAM

Definition in file graph_vram.h.

Macro Definition Documentation

GRAPH_ALIGN_BLOCK

#define GRAPH_ALIGN_BLOCK   64

Texture Buffer and CLUT Buffer

Definition at line 17 of file graph_vram.h.

GRAPH_ALIGN_PAGE

#define GRAPH_ALIGN_PAGE   2048

Frame Buffer and Z Buffer

Definition at line 14 of file graph_vram.h.

GRAPH_VRAM_MAX_WORDS

#define GRAPH_VRAM_MAX_WORDS   1048576

Each word is 1 32-bit pixel

Definition at line 11 of file graph_vram.h.

Function Documentation

graph_vram_allocate()

int graph_vram_allocate ( int width, int height, int psm, int alignment )

extern

Allocates vram and returns vram base pointer

Definition at line 7 of file graph_vram.c.

graph_vram_clear()

void graph_vram_clear ( void )

extern

Clears the vram status

Definition at line 40 of file graph_vram.c.

graph_vram_free()

void graph_vram_free ( int address )

extern

Frees in FIFO order...

Definition at line 33 of file graph_vram.c.

graph_vram_size()

int graph_vram_size ( int width, int height, int psm, int alignment )

extern

Calculate the size in vram of a texture or buffer

Definition at line 47 of file graph_vram.c.