mirror of
https://github.com/dolphin-emu/dolphin.git
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186 lines
6 KiB
C++
186 lines
6 KiB
C++
// Copyright (C) 2003-2009 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include "VideoCommon.h"
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#include "TextureDecoder.h"
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#include "BPMemLoader.h"
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#include "EfbCopy.h"
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#include "Rasterizer.h"
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#include "SWPixelEngine.h"
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#include "Tev.h"
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#include "HW/Memmap.h"
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#include "Core.h"
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void InitBPMemory()
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{
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memset(&bpmem, 0, sizeof(bpmem));
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bpmem.bpMask = 0xFFFFFF;
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}
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void SWLoadBPReg(u32 value)
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{
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//handle the mask register
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int address = value >> 24;
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int oldval = ((u32*)&bpmem)[address];
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int newval = (oldval & ~bpmem.bpMask) | (value & bpmem.bpMask);
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((u32*)&bpmem)[address] = newval;
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//reset the mask register
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if (address != 0xFE)
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bpmem.bpMask = 0xFFFFFF;
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SWBPWritten(address, newval);
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}
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void SWBPWritten(int address, int newvalue)
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{
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switch (address)
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{
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case BPMEM_SCISSORTL:
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case BPMEM_SCISSORBR:
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case BPMEM_SCISSOROFFSET:
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Rasterizer::SetScissor();
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break;
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case BPMEM_SETDRAWDONE: // This is called when the game is done drawing (eg: like in DX: Begin(); Draw(); End();)
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switch (bpmem.drawdone & 0xFF)
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{
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case 0x02:
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SWPixelEngine::SetFinish(); // may generate interrupt
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DEBUG_LOG(VIDEO, "GXSetDrawDone SetPEFinish (value: 0x%02X)", (bpmem.drawdone & 0xFFFF));
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break;
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default:
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WARN_LOG(VIDEO, "GXSetDrawDone ??? (value 0x%02X)", (bpmem.drawdone & 0xFFFF));
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break;
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}
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break;
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case BPMEM_PE_TOKEN_ID: // Pixel Engine Token ID
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DEBUG_LOG(VIDEO, "SetPEToken 0x%04x", (bpmem.petoken & 0xFFFF));
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SWPixelEngine::SetToken(static_cast<u16>(bpmem.petokenint & 0xFFFF), false);
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break;
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case BPMEM_PE_TOKEN_INT_ID: // Pixel Engine Interrupt Token ID
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DEBUG_LOG(VIDEO, "SetPEToken + INT 0x%04x", (bpmem.petokenint & 0xFFFF));
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SWPixelEngine::SetToken(static_cast<u16>(bpmem.petokenint & 0xFFFF), true);
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break;
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case BPMEM_TRIGGER_EFB_COPY:
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EfbCopy::CopyEfb();
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break;
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case BPMEM_CLEARBBOX1:
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SWPixelEngine::pereg.boxRight = newvalue >> 10;
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SWPixelEngine::pereg.boxLeft = newvalue & 0x3ff;
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break;
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case BPMEM_CLEARBBOX2:
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SWPixelEngine::pereg.boxBottom = newvalue >> 10;
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SWPixelEngine::pereg.boxTop = newvalue & 0x3ff;
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break;
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case BPMEM_LOADTLUT0: // This one updates bpmem.tlutXferSrc, no need to do anything here.
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break;
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case BPMEM_LOADTLUT1: // Load a Texture Look Up Table
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{
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u32 tlutTMemAddr = (newvalue & 0x3FF) << 9;
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u32 tlutXferCount = (newvalue & 0x1FFC00) >> 5;
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u8 *ptr = 0;
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// TODO - figure out a cleaner way.
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if (Core::g_CoreStartupParameter.bWii)
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ptr = Memory::GetPointer(bpmem.tmem_config.tlut_src << 5);
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else
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ptr = Memory::GetPointer((bpmem.tmem_config.tlut_src & 0xFFFFF) << 5);
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if (ptr)
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memcpy_gc(texMem + tlutTMemAddr, ptr, tlutXferCount);
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else
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PanicAlert("Invalid palette pointer %08x %08x %08x", bpmem.tmem_config.tlut_src, bpmem.tmem_config.tlut_src << 5, (bpmem.tmem_config.tlut_src & 0xFFFFF)<< 5);
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break;
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}
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case BPMEM_PRELOAD_MODE:
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if (newvalue != 0)
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{
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// TODO: Not quite sure if this is completely correct (likely not)
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// NOTE: libogc's implementation of GX_PreloadEntireTexture seems flawed, so it's not necessarily a good reference for RE'ing this feature.
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BPS_TmemConfig& tmem_cfg = bpmem.tmem_config;
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u8* src_ptr = Memory::GetPointer(tmem_cfg.preload_addr << 5); // TODO: Should we add mask here on GC?
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u32 size = tmem_cfg.preload_tile_info.count * TMEM_LINE_SIZE;
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u32 tmem_addr_even = tmem_cfg.preload_tmem_even * TMEM_LINE_SIZE;
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if (tmem_cfg.preload_tile_info.type != 3)
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{
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if (tmem_addr_even + size > TMEM_SIZE)
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size = TMEM_SIZE - tmem_addr_even;
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memcpy(texMem + tmem_addr_even, src_ptr, size);
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}
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else // RGBA8 tiles (and CI14, but that might just be stupid libogc!)
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{
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// AR and GB tiles are stored in separate TMEM banks => can't use a single memcpy for everything
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u32 tmem_addr_odd = tmem_cfg.preload_tmem_odd * TMEM_LINE_SIZE;
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for (unsigned int i = 0; i < tmem_cfg.preload_tile_info.count; ++i)
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{
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if (tmem_addr_even + TMEM_LINE_SIZE > TMEM_SIZE ||
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tmem_addr_odd + TMEM_LINE_SIZE > TMEM_SIZE)
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break;
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memcpy(texMem + tmem_addr_even, src_ptr, TMEM_LINE_SIZE);
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memcpy(texMem + tmem_addr_odd, src_ptr + TMEM_LINE_SIZE, TMEM_LINE_SIZE);
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tmem_addr_even += TMEM_LINE_SIZE;
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tmem_addr_odd += TMEM_LINE_SIZE;
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src_ptr += TMEM_LINE_SIZE * 2;
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}
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}
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}
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break;
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case BPMEM_TEV_REGISTER_L: // Reg 1
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case BPMEM_TEV_REGISTER_L+2: // Reg 2
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case BPMEM_TEV_REGISTER_L+4: // Reg 3
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case BPMEM_TEV_REGISTER_L+6: // Reg 4
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{
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int regNum = (address >> 1 ) & 0x3;
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ColReg& reg = bpmem.tevregs[regNum].low;
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bool konst = reg.type;
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Rasterizer::SetTevReg(regNum, Tev::ALP_C, konst, reg.b); // A
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Rasterizer::SetTevReg(regNum, Tev::RED_C, konst, reg.a); // R
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break;
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}
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case BPMEM_TEV_REGISTER_H: // Reg 1
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case BPMEM_TEV_REGISTER_H+2: // Reg 2
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case BPMEM_TEV_REGISTER_H+4: // Reg 3
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case BPMEM_TEV_REGISTER_H+6: // Reg 4
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{
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int regNum = (address >> 1 ) & 0x3;
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ColReg& reg = bpmem.tevregs[regNum].high;
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bool konst = reg.type;
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Rasterizer::SetTevReg(regNum, Tev::GRN_C, konst, reg.b); // G
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Rasterizer::SetTevReg(regNum, Tev::BLU_C, konst, reg.a); // B
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break;
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}
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}
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}
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