history-museum/winamp
1
0
Fork 0
mirror of https://github.com/WinampDesktop/winamp.git synced 2025-06-18 18:15:46 -04:00
Code Issues Actions Packages Projects Releases Wiki Activity

PGXP: Add initial implementation

Browse Source
This commit is contained in:
Connor McLaughlin
2020-08-02 00:25:07 +10:00
parent 013497cf20
commit 0c1b637549
30 changed files with 1699 additions and 377 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
src/core/gte.cpp
View File

@ -3,6 +3,7 @@
#include "common/bitutils.h"
#include "common/state_wrapper.h"
#include "cpu_core.h"
#include "pgxp.h"
#include "settings.h"
#include <algorithm>
#include <array>
@ -621,6 +622,21 @@ static void RTPS(const s16 V[3], u8 shift, bool lm, bool last)
CheckMACOverflow<0>(Sy);
PushSXY(s32(Sx >> 16), s32(Sy >> 16));
if (g_settings.gpu_pgxp_enable)
{
// this can potentially use increased precision on Z
const float precise_z = std::max<float>((float)REGS.H / 2.f, (float)REGS.SZ3);
const float precise_h_div_sz = (float)REGS.H / precise_z;
const float fofx = ((float)REGS.OFX / (float)(1 << 16));
const float fofy = ((float)REGS.OFY / (float)(1 << 16));
float precise_x = fofx + ((float)REGS.IR1 * precise_h_div_sz) * ((g_settings.gpu_widescreen_hack) ? 0.75f : 1.00f);
float precise_y = fofy + ((float)REGS.IR2 * precise_h_div_sz);
precise_x = std::clamp<float>(precise_x, -0x400, 0x3ff);
precise_y = std::clamp<float>(precise_y, -0x400, 0x3ff);
PGXP::GTE_PushSXYZ2f(precise_x, precise_y, precise_z, REGS.dr32[14]);
}
if (last)
{
// MAC0=(((H*20000h/SZ3)+1)/2)*DQA+DQB, IR0=MAC0/1000h ;Depth cueing 0..+1000h
@ -664,6 +680,19 @@ static void Execute_NCLIP(Instruction inst)
REGS.FLAG.UpdateError();
}
static void Execute_NCLIP_PGXP(Instruction inst)
{
if (PGXP::GTE_NCLIP_valid(REGS.dr32[12], REGS.dr32[13], REGS.dr32[14]))
{
REGS.FLAG.Clear();
REGS.MAC0 = static_cast<s32>(PGXP::GTE_NCLIP());
}
else
{
Execute_NCLIP(inst);
}
}
static void Execute_AVSZ3(Instruction inst)
{
REGS.FLAG.Clear();
@ -994,8 +1023,13 @@ void ExecuteInstruction(u32 inst_bits)
break;
case 0x06:
Execute_NCLIP(inst);
break;
{
if (g_settings.gpu_pgxp_enable && g_settings.gpu_pgxp_culling)
Execute_NCLIP_PGXP(inst);
else
Execute_NCLIP(inst);
}
break;
case 0x0C:
Execute_OP(inst);
@ -1092,7 +1126,12 @@ InstructionImpl GetInstructionImpl(u32 inst_bits)
return &Execute_RTPS;
case 0x06:
return &Execute_NCLIP;
{
if (g_settings.gpu_pgxp_enable && g_settings.gpu_pgxp_culling)
return &Execute_NCLIP_PGXP;
else
return &Execute_NCLIP;
}
case 0x0C:
return &Execute_OP;