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// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "Core/ConfigManager.h"
#include "Core/Core.h"
#include "Core/HW/Memmap.h"
#include "VideoBackends/Software/BPMemLoader.h"
#include "VideoBackends/Software/EfbCopy.h"
#include "VideoBackends/Software/EfbInterface.h"
#include "VideoBackends/Software/Rasterizer.h"
#include "VideoBackends/Software/Tev.h"
#include "VideoCommon/BoundingBox.h"
#include "VideoCommon/PixelEngine.h"
#include "VideoCommon/TextureDecoder.h"
#include "VideoCommon/VideoCommon.h"
void InitBPMemory()
{
memset(&bpmem, 0, sizeof(bpmem));
bpmem.bpMask = 0xFFFFFF;
}
void SWLoadBPReg(u32 value)
{
//handle the mask register
int address = value >> 24;
int oldval = ((u32*)&bpmem)[address];
int newval = (oldval & ~bpmem.bpMask) | (value & bpmem.bpMask);
((u32*)&bpmem)[address] = newval;
//reset the mask register
if (address != 0xFE)
bpmem.bpMask = 0xFFFFFF;
SWBPWritten(address, newval);
}
void SWBPWritten(int address, int newvalue)
{
switch (address)
{
case BPMEM_SCISSORTL:
case BPMEM_SCISSORBR:
case BPMEM_SCISSOROFFSET:
Rasterizer::SetScissor();
break;
case BPMEM_SETDRAWDONE: // This is called when the game is done drawing (eg: like in DX: Begin(); Draw(); End();)
switch (bpmem.drawdone & 0xFF)
{
case 0x02:
PixelEngine::SetFinish(); // may generate interrupt
DEBUG_LOG(VIDEO, "GXSetDrawDone SetPEFinish (value: 0x%02X)", (bpmem.drawdone & 0xFFFF));
break;
default:
WARN_LOG(VIDEO, "GXSetDrawDone ??? (value 0x%02X)", (bpmem.drawdone & 0xFFFF));
break;
}
break;
case BPMEM_PE_TOKEN_ID: // Pixel Engine Token ID
DEBUG_LOG(VIDEO, "SetPEToken 0x%04x", (bpmem.petoken & 0xFFFF));
PixelEngine::SetToken(static_cast<u16>(bpmem.petokenint & 0xFFFF), false);
break;
case BPMEM_PE_TOKEN_INT_ID: // Pixel Engine Interrupt Token ID
DEBUG_LOG(VIDEO, "SetPEToken + INT 0x%04x", (bpmem.petokenint & 0xFFFF));
PixelEngine::SetToken(static_cast<u16>(bpmem.petokenint & 0xFFFF), true);
break;
case BPMEM_TRIGGER_EFB_COPY:
EfbCopy::CopyEfb();
break;
case BPMEM_CLEARBBOX1:
BoundingBox::coords[BoundingBox::LEFT] = newvalue >> 10;
BoundingBox::coords[BoundingBox::RIGHT] = newvalue & 0x3ff;
break;
case BPMEM_CLEARBBOX2:
BoundingBox::coords[BoundingBox::TOP] = newvalue >> 10;
BoundingBox::coords[BoundingBox::BOTTOM] = newvalue & 0x3ff;
break;
case BPMEM_CLEAR_PIXEL_PERF:
// TODO: I didn't test if the value written to this register affects the amount of cleared registers
memset(EfbInterface::perf_values, 0, sizeof(EfbInterface::perf_values));
break;
case BPMEM_LOADTLUT0: // This one updates bpmem.tlutXferSrc, no need to do anything here.
break;
case BPMEM_LOADTLUT1: // Load a Texture Look Up Table
{
u32 tlutTMemAddr = (newvalue & 0x3FF) << 9;
u32 tlutXferCount = (newvalue & 0x1FFC00) >> 5;
u32 addr = bpmem.tmem_config.tlut_src << 5;
// The GameCube ignores the upper bits of this address. Some games (WW, MKDD) set them.
if (!SConfig::GetInstance().m_LocalCoreStartupParameter.bWii)
addr = addr & 0x01FFFFFF;
Memory::CopyFromEmu(texMem + tlutTMemAddr, addr, tlutXferCount);
break;
}
case BPMEM_PRELOAD_MODE:
if (newvalue != 0)
{
// TODO: Not quite sure if this is completely correct (likely not)
// NOTE: libogc's implementation of GX_PreloadEntireTexture seems flawed, so it's not necessarily a good reference for RE'ing this feature.
BPS_TmemConfig& tmem_cfg = bpmem.tmem_config;
u32 src_addr = tmem_cfg.preload_addr << 5; // TODO: Should we add mask here on GC?
u32 size = tmem_cfg.preload_tile_info.count * TMEM_LINE_SIZE;
u32 tmem_addr_even = tmem_cfg.preload_tmem_even * TMEM_LINE_SIZE;
if (tmem_cfg.preload_tile_info.type != 3)
{
if (tmem_addr_even + size > TMEM_SIZE)
size = TMEM_SIZE - tmem_addr_even;
Memory::CopyFromEmu(texMem + tmem_addr_even, src_addr, size);
}
else // RGBA8 tiles (and CI14, but that might just be stupid libogc!)
{
u8* src_ptr = Memory::GetPointer(src_addr);
// AR and GB tiles are stored in separate TMEM banks => can't use a single memcpy for everything
u32 tmem_addr_odd = tmem_cfg.preload_tmem_odd * TMEM_LINE_SIZE;
for (unsigned int i = 0; i < tmem_cfg.preload_tile_info.count; ++i)
{
if (tmem_addr_even + TMEM_LINE_SIZE > TMEM_SIZE ||
tmem_addr_odd + TMEM_LINE_SIZE > TMEM_SIZE)
break;
memcpy(texMem + tmem_addr_even, src_ptr, TMEM_LINE_SIZE);
memcpy(texMem + tmem_addr_odd, src_ptr + TMEM_LINE_SIZE, TMEM_LINE_SIZE);
tmem_addr_even += TMEM_LINE_SIZE;
tmem_addr_odd += TMEM_LINE_SIZE;
src_ptr += TMEM_LINE_SIZE * 2;
}
}
}
break;
case BPMEM_TEV_COLOR_RA:
case BPMEM_TEV_COLOR_RA + 2:
case BPMEM_TEV_COLOR_RA + 4:
case BPMEM_TEV_COLOR_RA + 6:
{
int regNum = (address >> 1 ) & 0x3;
TevReg& reg = bpmem.tevregs[regNum];
bool is_konst = reg.type_ra != 0;
Rasterizer::SetTevReg(regNum, Tev::ALP_C, is_konst, static_cast<s16>(reg.alpha));
Rasterizer::SetTevReg(regNum, Tev::RED_C, is_konst, static_cast<s16>(reg.red));
break;
}
case BPMEM_TEV_COLOR_BG:
case BPMEM_TEV_COLOR_BG + 2:
case BPMEM_TEV_COLOR_BG + 4:
case BPMEM_TEV_COLOR_BG + 6:
{
int regNum = (address >> 1 ) & 0x3;
TevReg& reg = bpmem.tevregs[regNum];
bool is_konst = reg.type_bg != 0;
Rasterizer::SetTevReg(regNum, Tev::GRN_C, is_konst, static_cast<s16>(reg.green));
Rasterizer::SetTevReg(regNum, Tev::BLU_C, is_konst, static_cast<s16>(reg.blue));
break;
}
}
}
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