project64/Source/Project64-video/ucode01.cpp

144 lines
4.5 KiB
C++

/***************************************************************************
* *
* Project64-video - A Nintendo 64 gfx plugin. *
* http://www.pj64-emu.com/ *
* Copyright (C) 2017 Project64. All rights reserved. *
* Copyright (C) 2003-2009 Sergey 'Gonetz' Lipski *
* Copyright (C) 2002 Dave2001 *
* *
* License: *
* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html *
* version 2 of the License, or (at your option) any later version. *
* *
****************************************************************************/
#include <Project64-video/rdp.h>
#include <Project64-video/Gfx_1.3.h>
#include <Project64-video/trace.h>
#include <Project64-video/ucode.h>
#include <math.h>
#include "ucode00.h"
//
// vertex - loads vertices
//
void uc1_vertex()
{
int v0 = (rdp.cmd0 >> 17) & 0x7F; // Current vertex
int n = (rdp.cmd0 >> 10) & 0x3F; // Number to copy
rsp_vertex(v0, n);
}
//
// tri1 - renders a triangle
//
void uc1_tri1()
{
if (rdp.skip_drawing)
{
WriteTrace(TraceRDP, TraceDebug, "uc1:tri1. skipped");
return;
}
WriteTrace(TraceRDP, TraceDebug, "uc1:tri1 #%d - %d, %d, %d - %08lx - %08lx", rdp.tri_n,
((rdp.cmd1 >> 17) & 0x7F),
((rdp.cmd1 >> 9) & 0x7F),
((rdp.cmd1 >> 1) & 0x7F), rdp.cmd0, rdp.cmd1);
VERTEX *vtx[3] = {
&rdp.vtx((rdp.cmd1 >> 17) & 0x7F),
&rdp.vtx((rdp.cmd1 >> 9) & 0x7F),
&rdp.vtx((rdp.cmd1 >> 1) & 0x7F)
};
rsp_tri1(vtx);
}
void uc1_tri2()
{
if (rdp.skip_drawing)
{
WriteTrace(TraceRDP, TraceDebug, "uc1:tri2. skipped");
return;
}
WriteTrace(TraceRDP, TraceDebug, "uc1:tri2");
WriteTrace(TraceRDP, TraceDebug, " #%d, #%d - %d, %d, %d - %d, %d, %d", rdp.tri_n, rdp.tri_n + 1,
((rdp.cmd0 >> 17) & 0x7F),
((rdp.cmd0 >> 9) & 0x7F),
((rdp.cmd0 >> 1) & 0x7F),
((rdp.cmd1 >> 17) & 0x7F),
((rdp.cmd1 >> 9) & 0x7F),
((rdp.cmd1 >> 1) & 0x7F));
VERTEX *vtx[6] = {
&rdp.vtx((rdp.cmd0 >> 17) & 0x7F),
&rdp.vtx((rdp.cmd0 >> 9) & 0x7F),
&rdp.vtx((rdp.cmd0 >> 1) & 0x7F),
&rdp.vtx((rdp.cmd1 >> 17) & 0x7F),
&rdp.vtx((rdp.cmd1 >> 9) & 0x7F),
&rdp.vtx((rdp.cmd1 >> 1) & 0x7F)
};
rsp_tri2(vtx);
}
void uc1_line3d()
{
if (!g_settings->force_quad3d() && ((rdp.cmd1 & 0xFF000000) == 0) && ((rdp.cmd0 & 0x00FFFFFF) == 0))
{
uint16_t width = (uint16_t)(rdp.cmd1 & 0xFF) + 3;
WriteTrace(TraceRDP, TraceDebug, "uc1:line3d width: %d #%d, #%d - %d, %d", width, rdp.tri_n, rdp.tri_n + 1,
(rdp.cmd1 >> 17) & 0x7F,
(rdp.cmd1 >> 9) & 0x7F);
VERTEX *vtx[3] = {
&rdp.vtx((rdp.cmd1 >> 17) & 0x7F),
&rdp.vtx((rdp.cmd1 >> 9) & 0x7F),
&rdp.vtx((rdp.cmd1 >> 9) & 0x7F)
};
uint32_t cull_mode = (rdp.flags & CULLMASK) >> CULLSHIFT;
rdp.flags |= CULLMASK;
rdp.update |= UPDATE_CULL_MODE;
rsp_tri1(vtx, width);
rdp.flags ^= CULLMASK;
rdp.flags |= cull_mode << CULLSHIFT;
rdp.update |= UPDATE_CULL_MODE;
}
else
{
WriteTrace(TraceRDP, TraceDebug, "uc1:quad3d #%d, #%d", rdp.tri_n, rdp.tri_n + 1);
VERTEX *vtx[6] = {
&rdp.vtx((rdp.cmd1 >> 25) & 0x7F),
&rdp.vtx((rdp.cmd1 >> 17) & 0x7F),
&rdp.vtx((rdp.cmd1 >> 9) & 0x7F),
&rdp.vtx((rdp.cmd1 >> 1) & 0x7F),
&rdp.vtx((rdp.cmd1 >> 25) & 0x7F),
&rdp.vtx((rdp.cmd1 >> 9) & 0x7F)
};
rsp_tri2(vtx);
}
}
uint32_t branch_dl = 0;
void uc1_rdphalf_1()
{
WriteTrace(TraceRDP, TraceDebug, "uc1:rdphalf_1");
branch_dl = rdp.cmd1;
rdphalf_1();
}
void uc1_branch_z()
{
uint32_t addr = segoffset(branch_dl);
WriteTrace(TraceRDP, TraceDebug, "uc1:branch_less_z, addr: %08lx", addr);
uint32_t vtx = (rdp.cmd0 & 0xFFF) >> 1;
if (fabs(rdp.vtx(vtx).z) <= (rdp.cmd1/*&0xFFFF*/))
{
rdp.pc[rdp.pc_i] = addr;
}
}