277 lines
9.7 KiB
C
277 lines
9.7 KiB
C
/*
|
|
* Glide64 - Glide video plugin for Nintendo 64 emulators.
|
|
* Copyright (c) 2002 Dave2001
|
|
* Copyright (c) 2003-2009 Sergey 'Gonetz' Lipski
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
//****************************************************************
|
|
//
|
|
// Glide64 - Glide Plugin for Nintendo 64 emulators
|
|
// Project started on December 29th, 2001
|
|
//
|
|
// Authors:
|
|
// Dave2001, original author, founded the project in 2001, left it in 2002
|
|
// Gugaman, joined the project in 2002, left it in 2002
|
|
// Sergey 'Gonetz' Lipski, joined the project in 2002, main author since fall of 2002
|
|
// Hiroshi 'KoolSmoky' Morii, joined the project in 2007
|
|
//
|
|
//****************************************************************
|
|
//
|
|
// To modify Glide64:
|
|
// * Write your name and (optional)email, commented by your work, so I know who did it, and so that you can find which parts you modified when it comes time to send it to me.
|
|
// * Do NOT send me the whole project or file that you modified. Take out your modified code sections, and tell me where to put them. If people sent the whole thing, I would have many different versions, but no idea how to combine them all.
|
|
//
|
|
//****************************************************************
|
|
//
|
|
// Created by Gonetz, 2008
|
|
//
|
|
//****************************************************************
|
|
|
|
/******************Turbo3D microcode*************************/
|
|
|
|
struct t3dGlobState {
|
|
wxUint16 pad0;
|
|
wxUint16 perspNorm;
|
|
wxUint32 flag;
|
|
wxUint32 othermode0;
|
|
wxUint32 othermode1;
|
|
wxUint32 segBases[16];
|
|
/* the viewport to use */
|
|
short vsacle1;
|
|
short vsacle0;
|
|
short vsacle3;
|
|
short vsacle2;
|
|
short vtrans1;
|
|
short vtrans0;
|
|
short vtrans3;
|
|
short vtrans2;
|
|
wxUint32 rdpCmds;
|
|
};
|
|
|
|
struct t3dState {
|
|
wxUint32 renderState; /* render state */
|
|
wxUint32 textureState; /* texture state */
|
|
wxUint8 flag;
|
|
wxUint8 triCount; /* how many tris? */
|
|
wxUint8 vtxV0; /* where to load verts? */
|
|
wxUint8 vtxCount; /* how many verts? */
|
|
wxUint32 rdpCmds; /* ptr (segment address) to RDP DL */
|
|
wxUint32 othermode0;
|
|
wxUint32 othermode1;
|
|
};
|
|
|
|
|
|
struct t3dTriN{
|
|
wxUint8 flag, v2, v1, v0; /* flag is which one for flat shade */
|
|
};
|
|
|
|
|
|
static void t3dProcessRDP(wxUint32 a)
|
|
{
|
|
if (a)
|
|
{
|
|
rdp.LLE = 1;
|
|
rdp.cmd0 = ((wxUint32*)gfx.RDRAM)[a++];
|
|
rdp.cmd1 = ((wxUint32*)gfx.RDRAM)[a++];
|
|
while (rdp.cmd0 + rdp.cmd1) {
|
|
gfx_instruction[0][rdp.cmd0>>24] ();
|
|
rdp.cmd0 = ((wxUint32*)gfx.RDRAM)[a++];
|
|
rdp.cmd1 = ((wxUint32*)gfx.RDRAM)[a++];
|
|
wxUint32 cmd = rdp.cmd0>>24;
|
|
if (cmd == 0xE4 || cmd == 0xE5)
|
|
{
|
|
rdp.cmd2 = ((wxUint32*)gfx.RDRAM)[a++];
|
|
rdp.cmd3 = ((wxUint32*)gfx.RDRAM)[a++];
|
|
}
|
|
}
|
|
rdp.LLE = 0;
|
|
}
|
|
}
|
|
|
|
static void t3dLoadGlobState(wxUint32 pgstate)
|
|
{
|
|
t3dGlobState *gstate = (t3dGlobState*)&gfx.RDRAM[segoffset(pgstate)];
|
|
FRDP ("Global state. pad0: %04lx, perspNorm: %04lx, flag: %08lx\n", gstate->pad0, gstate->perspNorm, gstate->flag);
|
|
rdp.cmd0 = gstate->othermode0;
|
|
rdp.cmd1 = gstate->othermode1;
|
|
rdp_setothermode();
|
|
|
|
for (int s = 0; s < 16; s++)
|
|
{
|
|
rdp.segment[s] = gstate->segBases[s];
|
|
FRDP ("segment: %08lx -> seg%d\n", rdp.segment[s], s);
|
|
}
|
|
|
|
short scale_x = gstate->vsacle0 / 4;
|
|
short scale_y = gstate->vsacle1 / 4;;
|
|
short scale_z = gstate->vsacle2;
|
|
short trans_x = gstate->vtrans0 / 4;
|
|
short trans_y = gstate->vtrans1 / 4;
|
|
short trans_z = gstate->vtrans2;
|
|
rdp.view_scale[0] = scale_x * rdp.scale_x;
|
|
rdp.view_scale[1] = -scale_y * rdp.scale_y;
|
|
rdp.view_scale[2] = 32.0f * scale_z;
|
|
rdp.view_trans[0] = trans_x * rdp.scale_x;
|
|
rdp.view_trans[1] = trans_y * rdp.scale_y;
|
|
rdp.view_trans[2] = 32.0f * trans_z;
|
|
rdp.update |= UPDATE_VIEWPORT;
|
|
FRDP ("viewport scale(%d, %d, %d), trans(%d, %d, %d)\n", scale_x, scale_y, scale_z,
|
|
trans_x, trans_y, trans_z);
|
|
|
|
t3dProcessRDP(segoffset(gstate->rdpCmds) >> 2);
|
|
}
|
|
|
|
static void t3d_vertex(wxUint32 addr, wxUint32 v0, wxUint32 n)
|
|
{
|
|
float x, y, z;
|
|
|
|
rdp.v0 = v0; // Current vertex
|
|
rdp.vn = n; // Number of vertices to copy
|
|
n <<= 4;
|
|
|
|
for (wxUint32 i=0; i < n; i+=16)
|
|
{
|
|
VERTEX *v = &rdp.vtx[v0 + (i>>4)];
|
|
x = (float)((short*)gfx.RDRAM)[(((addr+i) >> 1) + 0)^1];
|
|
y = (float)((short*)gfx.RDRAM)[(((addr+i) >> 1) + 1)^1];
|
|
z = (float)((short*)gfx.RDRAM)[(((addr+i) >> 1) + 2)^1];
|
|
v->flags = ((wxUint16*)gfx.RDRAM)[(((addr+i) >> 1) + 3)^1];
|
|
v->ou = 2.0f * (float)((short*)gfx.RDRAM)[(((addr+i) >> 1) + 4)^1];
|
|
v->ov = 2.0f * (float)((short*)gfx.RDRAM)[(((addr+i) >> 1) + 5)^1];
|
|
v->uv_scaled = 0;
|
|
v->r = ((wxUint8*)gfx.RDRAM)[(addr+i + 12)^3];
|
|
v->g = ((wxUint8*)gfx.RDRAM)[(addr+i + 13)^3];
|
|
v->b = ((wxUint8*)gfx.RDRAM)[(addr+i + 14)^3];
|
|
v->a = ((wxUint8*)gfx.RDRAM)[(addr+i + 15)^3];
|
|
|
|
v->x = x*rdp.combined[0][0] + y*rdp.combined[1][0] + z*rdp.combined[2][0] + rdp.combined[3][0];
|
|
v->y = x*rdp.combined[0][1] + y*rdp.combined[1][1] + z*rdp.combined[2][1] + rdp.combined[3][1];
|
|
v->z = x*rdp.combined[0][2] + y*rdp.combined[1][2] + z*rdp.combined[2][2] + rdp.combined[3][2];
|
|
v->w = x*rdp.combined[0][3] + y*rdp.combined[1][3] + z*rdp.combined[2][3] + rdp.combined[3][3];
|
|
|
|
if (fabs(v->w) < 0.001) v->w = 0.001f;
|
|
v->oow = 1.0f / v->w;
|
|
v->x_w = v->x * v->oow;
|
|
v->y_w = v->y * v->oow;
|
|
v->z_w = v->z * v->oow;
|
|
|
|
v->uv_calculated = 0xFFFFFFFF;
|
|
v->screen_translated = 0;
|
|
v->shade_mod = 0;
|
|
|
|
v->scr_off = 0;
|
|
if (v->x < -v->w) v->scr_off |= 1;
|
|
if (v->x > v->w) v->scr_off |= 2;
|
|
if (v->y < -v->w) v->scr_off |= 4;
|
|
if (v->y > v->w) v->scr_off |= 8;
|
|
if (v->w < 0.1f) v->scr_off |= 16;
|
|
#ifdef EXTREME_LOGGING
|
|
FRDP ("v%d - x: %f, y: %f, z: %f, w: %f, u: %f, v: %f, f: %f, z_w: %f, r=%d, g=%d, b=%d, a=%d\n", i>>4, v->x, v->y, v->z, v->w, v->ou*rdp.tiles[rdp.cur_tile].s_scale, v->ov*rdp.tiles[rdp.cur_tile].t_scale, v->f, v->z_w, v->r, v->g, v->b, v->a);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static void t3dLoadObject(wxUint32 pstate, wxUint32 pvtx, wxUint32 ptri)
|
|
{
|
|
LRDP("Loading Turbo3D object\n");
|
|
t3dState *ostate = (t3dState*)&gfx.RDRAM[segoffset(pstate)];
|
|
rdp.cur_tile = (ostate->textureState)&7;
|
|
FRDP("tile: %d\n", rdp.cur_tile);
|
|
if (rdp.tiles[rdp.cur_tile].s_scale < 0.001f)
|
|
rdp.tiles[rdp.cur_tile].s_scale = 0.015625;
|
|
if (rdp.tiles[rdp.cur_tile].t_scale < 0.001f)
|
|
rdp.tiles[rdp.cur_tile].t_scale = 0.015625;
|
|
|
|
#ifdef EXTREME_LOGGING
|
|
FRDP("renderState: %08lx, textureState: %08lx, othermode0: %08lx, othermode1: %08lx, rdpCmds: %08lx, triCount : %d, v0: %d, vn: %d\n", ostate->renderState, ostate->textureState,
|
|
ostate->othermode0, ostate->othermode1, ostate->rdpCmds, ostate->triCount, ostate->vtxV0, ostate->vtxCount);
|
|
#endif
|
|
|
|
rdp.cmd0 = ostate->othermode0;
|
|
rdp.cmd1 = ostate->othermode1;
|
|
rdp_setothermode();
|
|
|
|
rdp.cmd1 = ostate->renderState;
|
|
uc0_setgeometrymode();
|
|
|
|
if (!(ostate->flag&1)) //load matrix
|
|
{
|
|
wxUint32 addr = segoffset(pstate+sizeof(t3dState)) & BMASK;
|
|
load_matrix(rdp.combined, addr);
|
|
#ifdef EXTREME_LOGGING
|
|
FRDP ("{%f,%f,%f,%f}\n", rdp.combined[0][0], rdp.combined[0][1], rdp.combined[0][2], rdp.combined[0][3]);
|
|
FRDP ("{%f,%f,%f,%f}\n", rdp.combined[1][0], rdp.combined[1][1], rdp.combined[1][2], rdp.combined[1][3]);
|
|
FRDP ("{%f,%f,%f,%f}\n", rdp.combined[2][0], rdp.combined[2][1], rdp.combined[2][2], rdp.combined[2][3]);
|
|
FRDP ("{%f,%f,%f,%f}\n", rdp.combined[3][0], rdp.combined[3][1], rdp.combined[3][2], rdp.combined[3][3]);
|
|
#endif
|
|
}
|
|
|
|
rdp.geom_mode &= ~0x00020000;
|
|
rdp.geom_mode |= 0x00000200;
|
|
if (pvtx) //load vtx
|
|
t3d_vertex(segoffset(pvtx) & BMASK, ostate->vtxV0, ostate->vtxCount);
|
|
|
|
t3dProcessRDP(segoffset(ostate->rdpCmds) >> 2);
|
|
|
|
if (ptri)
|
|
{
|
|
update ();
|
|
wxUint32 a = segoffset(ptri);
|
|
for (int t=0; t < ostate->triCount; t++)
|
|
{
|
|
t3dTriN * tri = (t3dTriN*)&gfx.RDRAM[a];
|
|
a += 4;
|
|
FRDP("tri #%d - %d, %d, %d\n", t, tri->v0, tri->v1, tri->v2);
|
|
VERTEX *v[3] = { &rdp.vtx[tri->v0], &rdp.vtx[tri->v1], &rdp.vtx[tri->v2] };
|
|
if (cull_tri(v))
|
|
rdp.tri_n ++;
|
|
else
|
|
{
|
|
draw_tri (v);
|
|
rdp.tri_n ++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void Turbo3D()
|
|
{
|
|
LRDP("Start Turbo3D microcode\n");
|
|
settings.ucode = ucode_Fast3D;
|
|
wxUint32 a = 0, pgstate = 0, pstate = 0, pvtx = 0, ptri = 0;
|
|
do {
|
|
a = rdp.pc[rdp.pc_i] & BMASK;
|
|
pgstate = ((wxUint32*)gfx.RDRAM)[a>>2];
|
|
pstate = ((wxUint32*)gfx.RDRAM)[(a>>2)+1];
|
|
pvtx = ((wxUint32*)gfx.RDRAM)[(a>>2)+2];
|
|
ptri = ((wxUint32*)gfx.RDRAM)[(a>>2)+3];
|
|
FRDP("GlobalState: %08lx, Object: %08lx, Vertices: %08lx, Triangles: %08lx\n", pgstate, pstate, pvtx, ptri);
|
|
if (!pstate)
|
|
{
|
|
rdp.halt = 1;
|
|
break;
|
|
}
|
|
if (pgstate)
|
|
t3dLoadGlobState(pgstate);
|
|
t3dLoadObject(pstate, pvtx, ptri);
|
|
// Go to the next instruction
|
|
rdp.pc[rdp.pc_i] += 16;
|
|
} while (pstate);
|
|
// rdp_fullsync();
|
|
settings.ucode = ucode_Turbo3d;
|
|
}
|