lbrefract.c File Reference

Refraction visual effects using GX indirect textures. More...

#include "lbrefract.h"
#include "lb/types.h"
#include <math.h>
#include <dolphin/gx/GXTexture.h>
#include <baselib/cobj.h>
#include <baselib/debug.h>
#include <baselib/dobj.h>
#include <baselib/state.h>
#include <MetroTRK/intrinsics.h>

Macros
#define	SIGN_BIT   (1 << 31)
#define	BITWISE(f)   (*(u32*) &f)
#define	SIGNED_BITWISE(f)   ((s32) BITWISE(f))
#define	GET_SIGN_BIT(f)   (SIGNED_BITWISE(f) & SIGN_BIT)
#define	BITWISE_PI_2   0x3FC90FDB
#define	NAN   MSL_TrigF_80400770[0]
#define	INF   MSL_TrigF_80400774[0]
#define	SILVER_RATIO_1_CONJUGATE   lbRefract3_804D7DD4
#define	BITWISE_INF   0x7F800000 /* = +Infinity */
#define	BITWISE_0_5   0x3F000000 /* = 0.5f */
#define	BITWISE_1_0   0x3F800000 /* = 1.0f */
#define	BITWISE_2_0   0x40000000 /* = 2.0f */
#define	BITWISE_THRESHOLD_0   0x3F08D5B9 /* = 0.534511148929596f */
#define	BITWISE_THRESHOLD_1   0x3F521801 /* = 0.8206787705421448f */
#define	BITWISE_THRESHOLD_2   0x3F9BF7EC /* = 1.218503475189209f */
#define	BITWISE_THRESHOLD_3   0x3FEF789E /* = 1.870868444442749f */

Functions
static void	lbRefract_WriteTexCoordIA4 (lbRefract_CallbackData *data, s32 row, u32 col, u32 arg3, u8 arg4, u8 intensity, u8 alpha)
	Write IA4 texture coordinate to refraction buffer.
static UNK_RET	fn_80021F70 (UNK_PARAMS)
static UNK_RET	fn_80021FB4 (UNK_PARAMS)
static UNK_RET	fn_80021FF8 (UNK_PARAMS)
static UNK_RET	fn_8002206C (UNK_PARAMS)
static void	lbRefract_DObjDispReset (HSD_DObj *dobj, Mtx vmtx, Mtx pmtx, u32 rendermode)
	Display DObj then reset TEV/indirect stages for refraction cleanup.
static void	lbRefract_ReadTexCoordRGBA8 (lbRefract_CallbackData *data, s32 row, u32 col, u32 *out_r, u32 *out_g, u8 *out_b, u8 *out_a)
	Read RGBA8 texture coordinate addresses from refraction buffer.
static float	lbRefract_80022DF8 (float x)
s32	lbRefract_8002219C (lbRefract_CallbackData *data, s32 buffer, s32 format, u16 width, u16 height)
	Initialize refraction callback data for a texture buffer.
void	lbRefract_8002247C (HSD_CObj *cobj)
	Copy framebuffer to refraction source texture.
void	lbRefract_80022560 (void)
	Copy framebuffer to refraction source texture.
void	lbRefract_800225D4 (void)
	Reset TEV and indirect texture stages.
void	lbRefract_80022BB8 (void)
	Increment refraction effect user count.
void	lbRefract_80022BD0 (void)
	Decrement refraction effect user count.
float	atan2f (float y, float x)
float	acosf (float x)
float	asinf (float x)
float	atanf (float x)

Variables
HSD_DObjInfo	hsdDObj
static int	lbl_804336D0 [0x10]
float	MSL_TrigF_80400770 []
float	MSL_TrigF_80400774 []
static const float	atanf_lookup []

Detailed Description

Refraction visual effects using GX indirect textures.

Uses reference counting to track active effect users. Supports IA4, IA8, and RGBA8 texture formats.

Macro Definition Documentation

SIGN_BIT

#define SIGN_BIT   (1 << 31)

BITWISE

#define BITWISE

(

f

)

(*(u32*) &f)

SIGNED_BITWISE

#define SIGNED_BITWISE

(

f

)

((s32) BITWISE(f))

GET_SIGN_BIT

#define GET_SIGN_BIT

(

f

)

(SIGNED_BITWISE(f) & SIGN_BIT)

BITWISE_PI_2

#define BITWISE_PI_2   0x3FC90FDB

NAN

#define NAN   MSL_TrigF_80400770[0]

INF

#define INF   MSL_TrigF_80400774[0]

SILVER_RATIO_1_CONJUGATE

#define SILVER_RATIO_1_CONJUGATE   lbRefract3_804D7DD4

BITWISE_INF

#define BITWISE_INF   0x7F800000 /* = +Infinity */

BITWISE_0_5

#define BITWISE_0_5   0x3F000000 /* = 0.5f */

BITWISE_1_0

#define BITWISE_1_0   0x3F800000 /* = 1.0f */

BITWISE_2_0

#define BITWISE_2_0   0x40000000 /* = 2.0f */

BITWISE_THRESHOLD_0

#define BITWISE_THRESHOLD_0   0x3F08D5B9 /* = 0.534511148929596f */

BITWISE_THRESHOLD_1

#define BITWISE_THRESHOLD_1   0x3F521801 /* = 0.8206787705421448f */

BITWISE_THRESHOLD_2

#define BITWISE_THRESHOLD_2   0x3F9BF7EC /* = 1.218503475189209f */

BITWISE_THRESHOLD_3

#define BITWISE_THRESHOLD_3   0x3FEF789E /* = 1.870868444442749f */

Function Documentation

lbRefract_WriteTexCoordIA4()

static void lbRefract_WriteTexCoordIA4 ( lbRefract_CallbackData *  data, s32  row, u32  col, u32  arg3, u8  arg4, u8  intensity, u8  alpha  )

static

Write IA4 texture coordinate to refraction buffer.

fn_80021F70()

static UNK_RET fn_80021F70 ( UNK_PARAMS  )

static

fn_80021FB4()

static UNK_RET fn_80021FB4 ( UNK_PARAMS  )

static

fn_80021FF8()

static UNK_RET fn_80021FF8 ( UNK_PARAMS  )

static

fn_8002206C()

static UNK_RET fn_8002206C ( UNK_PARAMS  )

static

lbRefract_DObjDispReset()

static void lbRefract_DObjDispReset ( HSD_DObj *  dobj, Mtx  vmtx, Mtx  pmtx, u32  rendermode  )

static

Display DObj then reset TEV/indirect stages for refraction cleanup.

lbRefract_ReadTexCoordRGBA8()

static void lbRefract_ReadTexCoordRGBA8 ( lbRefract_CallbackData *  data, s32  row, u32  col, u32 *  out_r, u32 *  out_g, u8 *  out_b, u8 *  out_a  )

static

Read RGBA8 texture coordinate addresses from refraction buffer.

lbRefract_80022DF8()

static float lbRefract_80022DF8 ( float  x )

inlinestatic

lbRefract_8002219C()

s32 lbRefract_8002219C	(	lbRefract_CallbackData *	data,
		s32	buffer,
		s32	format,
		u16	width,
		u16	height
	)

Initialize refraction callback data for a texture buffer.

Parameters

data	Callback data to initialize.
buffer	Base address of texture buffer.
format	Texture format (3=IA4, 4=IA8, 6=RGBA8).
width	Texture width in pixels.
height	Texture height in pixels.

Returns

0 on success, -1 if format is unsupported.

lbRefract_8002247C()

void lbRefract_8002247C

(

HSD_CObj *

cobj

)

Copy framebuffer to refraction source texture.

lbRefract_80022560()

void lbRefract_80022560

(

void

)

Copy framebuffer to refraction source texture.

lbRefract_800225D4()

void lbRefract_800225D4

(

void

)

Reset TEV and indirect texture stages.

lbRefract_80022BB8()

void lbRefract_80022BB8

(

void

)

Increment refraction effect user count.

lbRefract_80022BD0()

void lbRefract_80022BD0

(

void

)

Decrement refraction effect user count.

atan2f()

float atan2f	(	float	y,
		float	x
	)

acosf()

float acosf

(

float

x

)

asinf()

float asinf

(

float

x

)

atanf()

float atanf

(

float

x

)

Variable Documentation

hsdDObj

HSD_DObjInfo hsdDObj

extern

lbl_804336D0

int lbl_804336D0[0x10]

static

MSL_TrigF_80400770

float MSL_TrigF_80400770[]

extern

MSL_TrigF_80400774

float MSL_TrigF_80400774[]

atanf_lookup

const float atanf_lookup[]

static