source/gles2n64/src/F3DCBFD.cpp

   1 #include "Common.h"
   2 #include "gles2N64.h"
   3 #include "Debug.h"
   4 #include "F3D.h"
   5 #include "F3DEX.h"
   6 #include "F3DEX2.h"
   7 #include "F3DCBFD.h"
   8 #include "S2DEX.h"
   9 #include "S2DEX2.h"
  10 #include "N64.h"
  11 #include "RSP.h"
  12 #include "RDP.h"
  13 #include "gSP.h"
  14 #include "gDP.h"
  15 #include "GBI.h"
  16 #include "OpenGL.h"
  17 #include "Config.h"
  18
  19 //BASED ON GLIDE64 Implementation
  20
  21 u32 normal_address = 0;
  22
  23 void F3DCBFD_Vtx(u32 w0, u32 w1)
  24 {
  25
  26         s32 v0, n;
  27     u32 address;
  28         n = (w0 >> 12)&0xFF;
  29         v0 = ((w0 >> 1)&0x7F) - n;
  30         address = RSP_SegmentToPhysical(w1);
  31
  32         if (v0 < 0)
  33         {
  34                 return;
  35         }
  36
  37     gSPFlushTriangles();
  38
  39     Vertex* vertex = (Vertex*)&RDRAM[address];
  40
  41         for (s32 i=0; i < n; i++)
  42         {
  43         u32 v;
  44 #ifdef __TRIBUFFER_OPT
  45         v = __indexmap_getnew(i, 1);
  46 #else
  47         v = i;
  48 #endif
  49
  50                 OGL.triangles.vertices[v].x = vertex->x;
  51                 OGL.triangles.vertices[v].y = vertex->y;
  52                 OGL.triangles.vertices[v].z = vertex->z;
  53                 OGL.triangles.vertices[v].w = 1.0f;
  54
  55                 OGL.triangles.vertices[v].s = _FIXED2FLOAT(vertex->s, 5);
  56                 OGL.triangles.vertices[v].t = _FIXED2FLOAT(vertex->t, 5);
  57
  58         if (config.enableLighting && gSP.geometryMode & G_LIGHTING)
  59                 {
  60                         OGL.triangles.vertices[v].nx = ((s8*)RDRAM)[(normal_address + (i<<2) + (v0<<1) + 0)^3];
  61                         OGL.triangles.vertices[v].ny = ((s8*)RDRAM)[(normal_address + (i<<2) + (v0<<1) + 1)^3];
  62                         OGL.triangles.vertices[v].nz = (s8)(vertex->flag&0xff);
  63                 }
  64
  65         gSPProcessVertex(v);
  66
  67         if (config.enableLighting && gSP.geometryMode & G_LIGHTING)
  68                 {
  69             OGL.triangles.vertices[v].r = OGL.triangles.vertices[v].r * vertex->color.r * 0.0039215689f;
  70             OGL.triangles.vertices[v].g = OGL.triangles.vertices[v].g * vertex->color.g * 0.0039215689f;
  71             OGL.triangles.vertices[v].b = OGL.triangles.vertices[v].b * vertex->color.b * 0.0039215689f;
  72             OGL.triangles.vertices[v].a = OGL.triangles.vertices[v].a * vertex->color.a * 0.0039215689f;
  73                 }
  74                 else
  75                 {
  76             OGL.triangles.vertices[v].r = vertex->color.r * 0.0039215689f;
  77             OGL.triangles.vertices[v].g = vertex->color.g * 0.0039215689f;
  78             OGL.triangles.vertices[v].b = vertex->color.b * 0.0039215689f;
  79             OGL.triangles.vertices[v].a = vertex->color.a * 0.0039215689f;
  80                 }
  81                 vertex++;
  82     }
  83 }
  84
  85 void F3DCBFD_MoveWord(u32 w0, u32 w1)
  86 {
  87         u8 index = (u8)((w0 >> 16) & 0xFF);
  88         u16 offset = (u16)(w0 & 0xFFFF);
  89
  90         switch (index)
  91         {
  92         case G_MW_NUMLIGHT:
  93             gSPNumLights(w1 / 48);
  94             break;
  95
  96         case G_MW_CLIP:
  97             if (offset == 0x04)
  98             {
  99                 gSPClipRatio( w1 );
 100             }
 101             break;
 102
 103         case G_MW_SEGMENT:
 104             gSPSegment(_SHIFTR(offset, 2, 4), w1);
 105             break;
 106
 107         case G_MW_FOG:
 108             gSPFogFactor( (s16)_SHIFTR( w1, 16, 16 ), (s16)_SHIFTR( w1, 0, 16 ) );
 109             break;
 110
 111         case G_MV_COORDMOD:  // moveword coord mod
 112             break;
 113
 114         default:
 115             break;
 116     }
 117 }
 118
 119 #define F3DCBFD_MV_VIEWPORT     8
 120 #define F3DCBFD_MV_LIGHT        10
 121 #define F3DCBFD_MV_NORMAL       14
 122
 123 void F3DCBFD_MoveMem(u32 w0, u32 w1)
 124 {
 125 #ifdef __TRIBUFFER_OPT
 126     gSPFlushTriangles();
 127 #endif
 128     switch (_SHIFTR( w0, 0, 8 ))
 129     {
 130         case F3DCBFD_MV_VIEWPORT:
 131             gSPViewport(w1);
 132             break;
 133
 134         case F3DCBFD_MV_LIGHT:
 135         {
 136             u32 offset = _SHIFTR( w0, 8, 8 ) << 3;
 137             if (offset >= 48)
 138             {
 139                 gSPLight( w1, (offset - 24) / 24);
 140             }
 141             break;
 142         }
 143
 144         case F3DCBFD_MV_NORMAL:
 145                         normal_address = RSP_SegmentToPhysical(w1);
 146             break;
 147
 148     }
 149 }
 150
 151 void F3DCBFD_Tri4(u32 w0, u32 w1)
 152 {
 153     gSP4Triangles( _SHIFTR(w0, 23, 5), _SHIFTR(w0, 18, 5), (_SHIFTR(w0, 15, 3 ) << 2) | _SHIFTR(w1, 30, 2),
 154                    _SHIFTR(w0, 10, 5), _SHIFTR(w0, 5, 5), _SHIFTR(w1, 0, 5),
 155                    _SHIFTR(w1, 25, 5), _SHIFTR(w1, 20, 5), _SHIFTR(w1, 15, 5),
 156                    _SHIFTR(w1, 10, 5), _SHIFTR(w1, 5, 5), _SHIFTR(w1, 0, 5));
 157 }
 158
 159
 160 void F3DCBFD_Init()
 161 {
 162     LOG(LOG_VERBOSE, "USING CBFD ucode!\n");
 163
 164     // Set GeometryMode flags
 165     GBI_InitFlags(F3DEX2);
 166
 167     GBI.PCStackSize = 10;
 168
 169     // GBI Command                      Command Value               Command Function
 170     GBI_SetGBI( G_RDPHALF_2,            F3DEX2_RDPHALF_2,           F3D_RDPHalf_2 );
 171     GBI_SetGBI( G_SETOTHERMODE_H,       F3DEX2_SETOTHERMODE_H,      F3DEX2_SetOtherMode_H );
 172     GBI_SetGBI( G_SETOTHERMODE_L,       F3DEX2_SETOTHERMODE_L,      F3DEX2_SetOtherMode_L );
 173     GBI_SetGBI( G_RDPHALF_1,            F3DEX2_RDPHALF_1,           F3D_RDPHalf_1 );
 174     GBI_SetGBI( G_SPNOOP,               F3DEX2_SPNOOP,              F3D_SPNoOp );
 175     GBI_SetGBI( G_ENDDL,                F3DEX2_ENDDL,               F3D_EndDL );
 176     GBI_SetGBI( G_DL,                   F3DEX2_DL,                  F3D_DList );
 177     GBI_SetGBI( G_LOAD_UCODE,           F3DEX2_LOAD_UCODE,          F3DEX_Load_uCode );
 178     GBI_SetGBI( G_MOVEMEM,              F3DEX2_MOVEMEM,             F3DCBFD_MoveMem);
 179     GBI_SetGBI( G_MOVEWORD,             F3DEX2_MOVEWORD,            F3DCBFD_MoveWord);
 180     GBI_SetGBI( G_MTX,                  F3DEX2_MTX,                 F3DEX2_Mtx );
 181     GBI_SetGBI( G_GEOMETRYMODE,         F3DEX2_GEOMETRYMODE,        F3DEX2_GeometryMode );
 182     GBI_SetGBI( G_POPMTX,               F3DEX2_POPMTX,              F3DEX2_PopMtx );
 183     GBI_SetGBI( G_TEXTURE,              F3DEX2_TEXTURE,             F3DEX2_Texture );
 184     GBI_SetGBI( G_DMA_IO,               F3DEX2_DMA_IO,              F3DEX2_DMAIO );
 185     GBI_SetGBI( G_SPECIAL_1,            F3DEX2_SPECIAL_1,           F3DEX2_Special_1 );
 186     GBI_SetGBI( G_SPECIAL_2,            F3DEX2_SPECIAL_2,           F3DEX2_Special_2 );
 187     GBI_SetGBI( G_SPECIAL_3,            F3DEX2_SPECIAL_3,           F3DEX2_Special_3 );
 188
 189
 190
 191     GBI_SetGBI(G_VTX,                   F3DEX2_VTX,                 F3DCBFD_Vtx);
 192     GBI_SetGBI(G_MODIFYVTX,             F3DEX2_MODIFYVTX,           F3DEX_ModifyVtx);
 193     GBI_SetGBI(G_CULLDL,                F3DEX2_CULLDL,              F3DEX_CullDL);
 194     GBI_SetGBI(G_BRANCH_Z,              F3DEX2_BRANCH_Z,            F3DEX_Branch_Z);
 195     GBI_SetGBI(G_TRI1,                  F3DEX2_TRI1,                F3DEX2_Tri1);
 196     GBI_SetGBI(G_TRI2,                  F3DEX2_TRI2,                F3DEX_Tri2);
 197     GBI_SetGBI(G_QUAD,                  F3DEX2_QUAD,                F3DEX2_Quad);
 198 //  GBI_SetGBI( G_LINE3D,               F3DEX2_LINE3D,              F3DEX2_Line3D );
 199
 200     //for some reason glide64 maps TRI4 to these locations:
 201
 202     for(int i = 0x10; i <= 0x1F; i++)
 203     {
 204         GBI_SetGBI(G_TRI4, i, F3DCBFD_Tri4);
 205     }
 206
 207     GBI_SetGBI( G_BG_1CYC,              S2DEX2_BG_1CYC,             S2DEX_BG_1Cyc);
 208     GBI_SetGBI( G_BG_COPY,              S2DEX2_BG_COPY,             S2DEX_BG_Copy);
 209     GBI_SetGBI( G_OBJ_RENDERMODE,       S2DEX2_OBJ_RENDERMODE,      S2DEX_Obj_RenderMode);
 210
 211 }
 212