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Add GXLight

This commit is contained in:
Phillip Stephens 2022-12-24 17:07:56 -08:00
parent 4919b49af6
commit 6ce3c59dfc
7 changed files with 409 additions and 5 deletions
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3
.vscode/settings.json vendored
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@ -53,7 +53,8 @@
"osrtcpriv.h": "c",
"osbootinfo.h": "c",
"assert.h": "c",
"math.h": "c"
"math.h": "c",
"gxpriv.h": "c"
},
"files.autoSave": "onFocusChange",
"files.insertFinalNewline": true,

4
configure.py
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@ -764,7 +764,7 @@ LIBS = [
{
"lib": "gx",
"mwcc_version": "1.2.5",
"cflags": "$cflags_base",
"cflags": "$cflags_base -fp_contract off",
"host": False,
"objects": [
"Dolphin/gx/GXInit",
@ -773,7 +773,7 @@ LIBS = [
"Dolphin/gx/GXMisc",
"Dolphin/gx/GXGeometry",
"Dolphin/gx/GXFrameBuf",
"Dolphin/gx/GXLight",
["Dolphin/gx/GXLight", False],
"Dolphin/gx/GXTexture",
"Dolphin/gx/GXBump",
"Dolphin/gx/GXTev",

90
include/dolphin/gx/GXEnum.h
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@ -794,6 +794,96 @@ typedef enum _GXTexCacheSize {
GX_TEXCACHE_NONE
} GXTexCacheSize;
typedef enum _GXPerf0 {
GX_PERF0_VERTICES,
GX_PERF0_CLIP_VTX,
GX_PERF0_CLIP_CLKS,
GX_PERF0_XF_WAIT_IN,
GX_PERF0_XF_WAIT_OUT,
GX_PERF0_XF_XFRM_CLKS,
GX_PERF0_XF_LIT_CLKS,
GX_PERF0_XF_BOT_CLKS,
GX_PERF0_XF_REGLD_CLKS,
GX_PERF0_XF_REGRD_CLKS,
GX_PERF0_CLIP_RATIO,
GX_PERF0_TRIANGLES,
GX_PERF0_TRIANGLES_CULLED,
GX_PERF0_TRIANGLES_PASSED,
GX_PERF0_TRIANGLES_SCISSORED,
GX_PERF0_TRIANGLES_0TEX,
GX_PERF0_TRIANGLES_1TEX,
GX_PERF0_TRIANGLES_2TEX,
GX_PERF0_TRIANGLES_3TEX,
GX_PERF0_TRIANGLES_4TEX,
GX_PERF0_TRIANGLES_5TEX,
GX_PERF0_TRIANGLES_6TEX,
GX_PERF0_TRIANGLES_7TEX,
GX_PERF0_TRIANGLES_8TEX,
GX_PERF0_TRIANGLES_0CLR,
GX_PERF0_TRIANGLES_1CLR,
GX_PERF0_TRIANGLES_2CLR,
GX_PERF0_QUAD_0CVG,
GX_PERF0_QUAD_NON0CVG,
GX_PERF0_QUAD_1CVG,
GX_PERF0_QUAD_2CVG,
GX_PERF0_QUAD_3CVG,
GX_PERF0_QUAD_4CVG,
GX_PERF0_AVG_QUAD_CNT,
GX_PERF0_CLOCKS,
GX_PERF0_NONE
} GXPerf0;
typedef enum _GXPerf1 {
GX_PERF1_TEXELS,
GX_PERF1_TX_IDLE,
GX_PERF1_TX_REGS,
GX_PERF1_TX_MEMSTALL,
GX_PERF1_TC_CHECK1_2,
GX_PERF1_TC_CHECK3_4,
GX_PERF1_TC_CHECK5_6,
GX_PERF1_TC_CHECK7_8,
GX_PERF1_TC_MISS,
GX_PERF1_VC_ELEMQ_FULL,
GX_PERF1_VC_MISSQ_FULL,
GX_PERF1_VC_MEMREQ_FULL,
GX_PERF1_VC_STATUS7,
GX_PERF1_VC_MISSREP_FULL,
GX_PERF1_VC_STREAMBUF_LOW,
GX_PERF1_VC_ALL_STALLS,
GX_PERF1_VERTICES,
GX_PERF1_FIFO_REQ,
GX_PERF1_CALL_REQ,
GX_PERF1_VC_MISS_REQ,
GX_PERF1_CP_ALL_REQ,
GX_PERF1_CLOCKS,
GX_PERF1_NONE
} GXPerf1;
typedef enum _GXVCachePerf {
GX_VC_POS,
GX_VC_NRM,
GX_VC_CLR0,
GX_VC_CLR1,
GX_VC_TEX0,
GX_VC_TEX1,
GX_VC_TEX2,
GX_VC_TEX3,
GX_VC_TEX4,
GX_VC_TEX5,
GX_VC_TEX6,
GX_VC_TEX7,
GX_VC_ALL = 0xf
} GXVCachePerf;
#ifdef __cplusplus
}
#endif

4
include/dolphin/gx/GXGet.h
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@ -16,8 +16,8 @@ GXTexWrapMode GXGetTexObjWrapS(const GXTexObj* obj);
GXTexWrapMode GXGetTexObjWrapT(const GXTexObj* obj);
void* GXGetTexObjData(const GXTexObj* obj);
void GXGetProjectionv(f32* p);
void GXGetLightPos(GXLightObj* lt_obj, f32* x, f32* y, f32* z);
void GXGetLightColor(GXLightObj* lt_obj, GXColor* color);
void GXGetLightPos(const GXLightObj* lt_obj, f32* x, f32* y, f32* z);
void GXGetLightColor(const GXLightObj* lt_obj, GXColor* color);
void GXGetVtxAttrFmt(GXVtxFmt idx, GXAttr attr, GXCompCnt* compCnt, GXCompType* compType,
u8* shift);

38
include/dolphin/gx/GXPriv.h Normal file
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@ -0,0 +1,38 @@
#ifndef _DOLPHIN_GXPRIV
#define _DOLPHIN_GXPRIV
#include "dolphin/gx/GXVert.h"
typedef struct GXLightObj_ {
u32 padding[3];
u32 color;
float a0;
float a1;
float a2;
float k0;
float k1;
float k2;
float px;
float py;
float pz;
float nx;
float ny;
float nz;
} GXLightObj_;
#define XF_LIGHT_BASE 0x0600
#define XF_LIGHT_SIZE 0x10
#define GX_FIFO_ADDR 0xCC008000
#define GX_WRITE_U8(v) (GXWGFifo.u8 = v)
#define GX_WRITE_U32(v) (GXWGFifo.u32 = v)
typedef struct GXData {
u16 cpSRreg;
u16 cpCRreg;
} GXData;
extern GXData* __GXData;
#endif // _DOLPHIN_GXPRIV

4
include/dolphin/gx/GXStruct.h
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@ -97,6 +97,10 @@ typedef struct _GXTexRegion {
u32 dummy[4];
} GXTexRegion;
typedef struct _GXTlutRegion {
u32 dummy[4];
} GXTlutRegion;
#ifdef __cplusplus
}
#endif

271
src/Dolphin/gx/GXLight.c Normal file
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@ -0,0 +1,271 @@
#include "dolphin/gx.h"
#include "dolphin/gx/GXPriv.h"
extern float cosf(float x);
extern float sqrtf(float x);
#define GX_LARGE_NUMBER 1.0e+18f;
void GXInitLightAttn(GXLightObj* lt_obj, f32 a0, f32 a1, f32 a2, f32 k0, f32 k1, f32 k2) {
GXLightObj_* obj = (GXLightObj_*)lt_obj;
obj->a0 = a0;
obj->a1 = a1;
obj->a2 = a2;
obj->k0 = k0;
obj->k1 = k1;
obj->k2 = k2;
}
void GXInitLightAttnA(GXLightObj* lt_obj, f32 a0, f32 a1, f32 a2) {
GXLightObj_* obj = (GXLightObj_*)lt_obj;
obj->a0 = a0;
obj->a1 = a1;
obj->a2 = a2;
}
void GXGetLightAttnA(const GXLightObj* lt_obj, f32* a0, f32* a1, f32* a2) {
GXLightObj_* obj = (GXLightObj_*)lt_obj;
*a0 = obj->a0;
*a1 = obj->a1;
*a2 = obj->a2;
}
void GXInitLightAttnK(GXLightObj* lt_obj, f32 k0, f32 k1, f32 k2) {
GXLightObj_* obj = (GXLightObj_*)lt_obj;
obj->k0 = k0;
obj->k1 = k1;
obj->k2 = k2;
}
void GXGetLightAttnK(const GXLightObj* lt_obj, f32* k0, f32* k1, f32* k2) {
GXLightObj_* obj = (GXLightObj_*)lt_obj;
*k0 = obj->k0;
*k1 = obj->k1;
*k2 = obj->k2;
}
#define PI 3.14159265358979323846F
void GXInitLightSpot(GXLightObj* lt_obj, f32 cutoff, GXSpotFn spot_func) {
f32 a0, a1, a2, r, d, cr;
GXLightObj_* obj = (GXLightObj_*)lt_obj;
if (cutoff <= 0.0f || cutoff > 90.0f) {
spot_func = GX_SP_OFF;
}
r = cutoff * PI / 180.0f;
cr = cosf(r);
switch (spot_func) {
case GX_SP_FLAT:
a0 = -1000.0f * cr;
a1 = 1000.0f;
a2 = 0.0f;
break;
case GX_SP_COS:
a1 = 1.0f / (1.0f - cr);
a0 = -cr * a1;
a2 = 0.0f;
break;
case GX_SP_COS2:
a2 = 1.0f / (1.0f - cr);
a0 = 0.0f;
a1 = -cr * a2;
break;
case GX_SP_SHARP:
d = 1.0F / ((1.0F - cr) * (1.0F - cr));
a0 = cr * (cr - 2.0F) * d;
a1 = 2.0F * d;
a2 = -d;
break;
case GX_SP_RING1:
d = 1.0f / ((1.0f - cr) * (1.0F - cr));
a2 = -4.0f * d;
a0 = a2 * cr;
a1 = 4.0f * (1.0f + cr) * d;
break;
case GX_SP_RING2:
d = 1.0f / ((1.0f - cr) * (1.0F - cr));
a0 = 1.0f - 2.0f * cr * cr * d;
a1 = 4.0f * cr * d;
a2 = -2.0f * d;
break;
case GX_SP_OFF:
default:
a0 = 1.0f;
a1 = 0.0f;
a2 = 0.0f;
break;
}
obj->a0 = a0;
obj->a1 = a1;
obj->a2 = a2;
}
void GXInitLightDistAttn(GXLightObj* lt_obj, f32 ref_dist, f32 ref_br, GXDistAttnFn dist_func) {
f32 k0, k1, k2;
GXLightObj_* obj = (GXLightObj_*)lt_obj;
if (ref_dist < 0.0F) {
dist_func = GX_DA_OFF;
}
if (ref_br <= 0.0F || ref_br >= 1.0F) {
dist_func = GX_DA_OFF;
}
switch (dist_func) {
case GX_DA_GENTLE:
k0 = 1.0F;
k1 = (1.0F - ref_br) / (ref_br * ref_dist);
k2 = 0.0F;
break;
case GX_DA_MEDIUM:
k0 = 1.0f;
k1 = 0.5f * (1.0f - ref_br) / (ref_br * ref_dist);
k2 = 0.5f * (1.0f - ref_br) / (ref_br * ref_dist * ref_dist);
break;
case GX_DA_STEEP:
k0 = 1.0f;
k1 = 0.0f;
k2 = (1.0f - ref_br) / (ref_br * ref_dist * ref_dist);
break;
case GX_DA_OFF:
default:
k0 = 1.0f;
k1 = 0.0f;
k2 = 0.0f;
break;
}
obj->k0 = k0;
obj->k1 = k1;
obj->k2 = k2;
}
void GXInitLightPos(GXLightObj* lt_obj, f32 x, f32 y, f32 z) {
GXLightObj_* obj = (GXLightObj_*)lt_obj;
obj->px = x;
obj->py = y;
obj->pz = z;
}
void GXGetLightPos(const GXLightObj* lt_obj, f32* x, f32* y, f32* z) {
GXLightObj_* obj = (GXLightObj_*)lt_obj;
*x = obj->px;
*y = obj->py;
*z = obj->pz;
}
void GXInitLightDir(GXLightObj* lt_obj, f32 nx, f32 ny, f32 nz) {
GXLightObj_* obj = (GXLightObj_*)lt_obj;
obj->nx = -nx;
obj->ny = -ny;
obj->nz = -nz;
}
void GXGetLightDir(const GXLightObj* lt_obj, f32* nx, f32* ny, f32* nz) {
GXLightObj_* obj = (GXLightObj_*)lt_obj;
*nx = -(obj->nx);
*ny = -(obj->ny);
*nz = -(obj->nz);
}
void GXInitSpecularDir(GXLightObj* lt_obj, f32 nx, f32 ny, f32 nz) {
f32 mag;
f32 vx, vy, vz;
GXLightObj_* obj = (GXLightObj_*)lt_obj;
vx = -nx;
vy = -ny;
vz = (-nz + 1.0F);
mag = vx * vx + vy * vy + vz * vz;
if (mag != 0.0f) {
mag = 1.0f / sqrtf(mag);
}
obj->px = vx * mag;
obj->py = vy * mag;
obj->pz = vz * mag;
obj->nx = nx * -GX_LARGE_NUMBER;
obj->ny = ny * -GX_LARGE_NUMBER;
obj->nz = nz * -GX_LARGE_NUMBER;
}
void GXInitSpecularDirHA(GXLightObj* lt_obj, f32 nx, f32 ny, f32 nz, f32 hx, f32 hy, f32 hz) {
GXLightObj_* obj = (GXLightObj_*)lt_obj;
obj->nx = hx;
obj->ny = hy;
obj->nz = hz;
obj->px = nx * -GX_LARGE_NUMBER;
obj->py = ny * -GX_LARGE_NUMBER;
obj->pz = nz * -GX_LARGE_NUMBER;
}
void GXInitLightColor(GXLightObj* lt_obj, GXColor color) {
GXLightObj_* obj = (GXLightObj_*)lt_obj;
obj->color = *(u32*)(&color);
}
void GXGetLightColor(const GXLightObj* lt_obj, GXColor* color) {
GXLightObj_* obj = (GXLightObj_*)lt_obj;
*(u32*)color = obj->color;
}
static inline void PushLight(const register GXLightObj_* lt_obj, register void* dest) {
register u32 zero, color;
register f32 a0_a1, a2_k0, k1_k2;
register f32 px_py, pz_dx, dy_dz;
asm
{
lwz color, 12(lt_obj)
xor zero, zero, zero
psq_l a0_a1, 16(lt_obj), 0, 0
psq_l a2_k0, 24(lt_obj), 0, 0
psq_l k1_k2, 32(lt_obj), 0, 0
psq_l px_py, 40(lt_obj), 0, 0
psq_l pz_dx, 48(lt_obj), 0, 0
psq_l dy_dz, 56(lt_obj), 0, 0
stw zero, 0(dest)
stw zero, 0(dest)
stw zero, 0(dest)
stw color, 0(dest)
psq_st a0_a1, 0(dest), 0, 0
psq_st a2_k0, 0(dest), 0, 0
psq_st k1_k2, 0(dest), 0, 0
psq_st px_py, 0(dest), 0, 0
psq_st pz_dx, 0(dest), 0, 0
psq_st dy_dz, 0(dest), 0, 0
}
}
void GXLoadLightObjImm(GXLightObj* lt_obj, GXLightID light) {
u32 addr;
u32 idx;
GXLightObj_* obj;
obj = (GXLightObj_*)lt_obj;
idx = 31 - __cntlzw(light);
idx &= 7;
addr = XF_LIGHT_BASE + idx * XF_LIGHT_SIZE;
GX_WRITE_U8(16);
GX_WRITE_U32(addr | (XF_LIGHT_SIZE - 1) << 16);
PushLight(obj, (void*)GX_FIFO_ADDR);
__GXData->cpCRreg = 1;
}
void GXSetChanAmbColor(GXChannelID chan, GXColor color) {
}