pvr_misc.h File Reference

Miscellaneous utilities for the PVR API. More...

#include <stdint.h>
#include <sys/cdefs.h>

Go to the source code of this file.

Data Structures
struct	pvr_stats_t
	PVR statistics structure. More...

Macros
#define	PVR_PACK_COLOR(a, r, g, b)
	Pack four floating point color values into a 32-bit integer form.

Functions
static uint32_t	PVR_PACK_16BIT_UV (float u, float v)
	Pack two floating point coordinates into one 32-bit value, truncating them to 16-bits each.
void	pvr_set_bg_color (float r, float g, float b)
	Set the background plane color.
void	pvr_set_shadow_scale (bool enable, float scale_value)
	Set cheap shadow parameters.
void	pvr_set_zclip (float zc)
	Set Z clipping depth.
void	pvr_set_presort_mode (bool presort)
	Set the translucent polygon sort mode for the next frame.
int	pvr_get_vbl_count (void)
	Retrieve the current VBlank count.
int	pvr_get_stats (pvr_stats_t *stat)
	Get the current statistics from the PVR.
bool	pvr_txr_set_stride (uint32_t texture_width)
	Set the global stride width for non-power-of-two textures in PVR RAM.
uint32_t	pvr_txr_get_stride (void)
	Get the current texture stride width in pixels as set in the PVR.

Detailed Description

Miscellaneous utilities for the PVR API.

Author

Megan Potter

Roger Cattermole

Paul Boese

Brian Paul

Lawrence Sebald

Benoit Miller

Ruslan Rostovtsev

Falco Girgis

Macro Definition Documentation

PVR_PACK_COLOR

#define PVR_PACK_COLOR	(		a,
			r,
			g,
			b )

Value:

        ( \
        ( ((uint8_t)( (a) * 255 ) ) << 24 ) | \
        ( ((uint8_t)( (r) * 255 ) ) << 16 ) | \
        ( ((uint8_t)( (g) * 255 ) ) <<  8 ) | \
        ( ((uint8_t)( (b) * 255 ) ) <<  0 ) )

Pack four floating point color values into a 32-bit integer form.

All of the color values should be between 0 and 1.

Parameters

a	Alpha value
r	Red value
g	Green value
b	Blue value

Returns

The packed color value

Function Documentation

PVR_PACK_16BIT_UV()

static uint32_t PVR_PACK_16BIT_UV ( float u, float v )

inlinestatic

Pack two floating point coordinates into one 32-bit value, truncating them to 16-bits each.

Parameters

u	First coordinate to pack
v	Second coordinate to pack

Returns

The packed coordinates