// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.

#include <cmath>
#include <cstring>
#include <string>

#include "Common/Logging/Log.h"
#include "Common/StringUtil.h"
#include "Common/Thread.h"
#include "Core/ConfigManager.h"
#include "Core/FifoPlayer/FifoRecorder.h"
#include "Core/HW/Memmap.h"

#include "VideoCommon/BPFunctions.h"
#include "VideoCommon/BPMemory.h"
#include "VideoCommon/BPStructs.h"
#include "VideoCommon/BoundingBox.h"
#include "VideoCommon/Fifo.h"
#include "VideoCommon/GeometryShaderManager.h"
#include "VideoCommon/PerfQueryBase.h"
#include "VideoCommon/PixelEngine.h"
#include "VideoCommon/PixelShaderManager.h"
#include "VideoCommon/RenderBase.h"
#include "VideoCommon/TextureCacheBase.h"
#include "VideoCommon/TextureDecoder.h"
#include "VideoCommon/VertexShaderManager.h"
#include "VideoCommon/VideoCommon.h"
#include "VideoCommon/VideoConfig.h"

using namespace BPFunctions;

static const float s_gammaLUT[] = {1.0f, 1.7f, 2.2f, 1.0f};

void BPInit()
{
  memset(&bpmem, 0, sizeof(bpmem));
  bpmem.bpMask = 0xFFFFFF;
}

static void BPWritten(const BPCmd& bp)
{
  /*
  ----------------------------------------------------------------------------------------------------------------
  Purpose: Writes to the BP registers
  Called: At the end of every: OpcodeDecoding.cpp ExecuteDisplayList > Decode() > LoadBPReg
  How It Works: First the pipeline is flushed then update the bpmem with the new value.
          Some of the BP cases have to call certain functions while others just update the bpmem.
          some bp cases check the changes variable, because they might not have to be updated all
  the time
  NOTE: it seems not all bp cases like checking changes, so calling if (bp.changes == 0 ? false :
  true)
      had to be ditched and the games seem to work fine with out it.
  NOTE2: Yet Another GameCube Documentation calls them Bypass Raster State Registers but possibly
  completely wrong
  NOTE3: This controls the register groups: RAS1/2, SU, TF, TEV, C/Z, PEC
  TODO: Turn into function table. The (future) DisplayList (DL) jit can then call the functions
  directly,
      getting rid of dynamic dispatch. Unfortunately, few games use DLs properly - most\
      just stuff geometry in them and don't put state changes there
  ----------------------------------------------------------------------------------------------------------------
  */

  // check for invalid state, else unneeded configuration are built
  g_video_backend->CheckInvalidState();

  if (((s32*)&bpmem)[bp.address] == bp.newvalue)
  {
    if (!(bp.address == BPMEM_TRIGGER_EFB_COPY || bp.address == BPMEM_CLEARBBOX1 ||
          bp.address == BPMEM_CLEARBBOX2 || bp.address == BPMEM_SETDRAWDONE ||
          bp.address == BPMEM_PE_TOKEN_ID || bp.address == BPMEM_PE_TOKEN_INT_ID ||
          bp.address == BPMEM_LOADTLUT0 || bp.address == BPMEM_LOADTLUT1 ||
          bp.address == BPMEM_TEXINVALIDATE || bp.address == BPMEM_PRELOAD_MODE ||
          bp.address == BPMEM_CLEAR_PIXEL_PERF))
    {
      return;
    }
  }

  FlushPipeline();

  ((u32*)&bpmem)[bp.address] = bp.newvalue;

  switch (bp.address)
  {
  case BPMEM_GENMODE:  // Set the Generation Mode
    PRIM_LOG("genmode: texgen=%d, col=%d, multisampling=%d, tev=%d, cullmode=%d, ind=%d, zfeeze=%d",
             (u32)bpmem.genMode.numtexgens, (u32)bpmem.genMode.numcolchans,
             (u32)bpmem.genMode.multisampling, (u32)bpmem.genMode.numtevstages + 1,
             (u32)bpmem.genMode.cullmode, (u32)bpmem.genMode.numindstages,
             (u32)bpmem.genMode.zfreeze);

    // Only call SetGenerationMode when cull mode changes.
    if (bp.changes & 0xC000)
      SetGenerationMode();
    return;
  case BPMEM_IND_MTXA:  // Index Matrix Changed
  case BPMEM_IND_MTXB:
  case BPMEM_IND_MTXC:
  case BPMEM_IND_MTXA + 3:
  case BPMEM_IND_MTXB + 3:
  case BPMEM_IND_MTXC + 3:
  case BPMEM_IND_MTXA + 6:
  case BPMEM_IND_MTXB + 6:
  case BPMEM_IND_MTXC + 6:
    if (bp.changes)
      PixelShaderManager::SetIndMatrixChanged((bp.address - BPMEM_IND_MTXA) / 3);
    return;
  case BPMEM_RAS1_SS0:  // Index Texture Coordinate Scale 0
    if (bp.changes)
      PixelShaderManager::SetIndTexScaleChanged(false);
    return;
  case BPMEM_RAS1_SS1:  // Index Texture Coordinate Scale 1
    if (bp.changes)
      PixelShaderManager::SetIndTexScaleChanged(true);
    return;
  // ----------------
  // Scissor Control
  // ----------------
  case BPMEM_SCISSORTL:      // Scissor Rectable Top, Left
  case BPMEM_SCISSORBR:      // Scissor Rectable Bottom, Right
  case BPMEM_SCISSOROFFSET:  // Scissor Offset
    SetScissor();
    VertexShaderManager::SetViewportChanged();
    GeometryShaderManager::SetViewportChanged();
    return;
  case BPMEM_LINEPTWIDTH:  // Line Width
    GeometryShaderManager::SetLinePtWidthChanged();
    return;
  case BPMEM_ZMODE:  // Depth Control
    PRIM_LOG("zmode: test=%d, func=%d, upd=%d", (int)bpmem.zmode.testenable, (int)bpmem.zmode.func,
             (int)bpmem.zmode.updateenable);
    SetDepthMode();
    return;
  case BPMEM_BLENDMODE:  // Blending Control
    if (bp.changes & 0xFFFF)
    {
      PRIM_LOG("blendmode: en=%d, open=%d, colupd=%d, alphaupd=%d, dst=%d, src=%d, sub=%d, mode=%d",
               (int)bpmem.blendmode.blendenable, (int)bpmem.blendmode.logicopenable,
               (int)bpmem.blendmode.colorupdate, (int)bpmem.blendmode.alphaupdate,
               (int)bpmem.blendmode.dstfactor, (int)bpmem.blendmode.srcfactor,
               (int)bpmem.blendmode.subtract, (int)bpmem.blendmode.logicmode);

      // Set LogicOp Blending Mode
      if (bp.changes & 0xF002)  // logicopenable | logicmode
        SetLogicOpMode();

      // Set Dithering Mode
      if (bp.changes & 4)  // dither
        SetDitherMode();

      // Set Blending Mode
      if (bp.changes & 0xFF1)  // blendenable | alphaupdate | dstfactor | srcfactor | subtract
        SetBlendMode();

      // Set Color Mask
      if (bp.changes & 0x18)  // colorupdate | alphaupdate
        SetColorMask();
    }
    return;
  case BPMEM_CONSTANTALPHA:  // Set Destination Alpha
    PRIM_LOG("constalpha: alp=%d, en=%d", bpmem.dstalpha.alpha, bpmem.dstalpha.enable);
    if (bp.changes & 0xFF)
      PixelShaderManager::SetDestAlpha();
    if (bp.changes & 0x100)
      SetBlendMode();
    return;

  // This is called when the game is done drawing the new frame (eg: like in DX: Begin(); Draw();
  // End();)
  // Triggers an interrupt on the PPC side so that the game knows when the GPU has finished drawing.
  // Tokens are similar.
  case BPMEM_SETDRAWDONE:
    switch (bp.newvalue & 0xFF)
    {
    case 0x02:
      if (!Fifo::UseDeterministicGPUThread())
        PixelEngine::SetFinish();  // may generate interrupt
      DEBUG_LOG(VIDEO, "GXSetDrawDone SetPEFinish (value: 0x%02X)", (bp.newvalue & 0xFFFF));
      return;

    default:
      WARN_LOG(VIDEO, "GXSetDrawDone ??? (value 0x%02X)", (bp.newvalue & 0xFFFF));
      return;
    }
    return;
  case BPMEM_PE_TOKEN_ID:  // Pixel Engine Token ID
    if (!Fifo::UseDeterministicGPUThread())
      PixelEngine::SetToken(static_cast<u16>(bp.newvalue & 0xFFFF), false);
    DEBUG_LOG(VIDEO, "SetPEToken 0x%04x", (bp.newvalue & 0xFFFF));
    return;
  case BPMEM_PE_TOKEN_INT_ID:  // Pixel Engine Interrupt Token ID
    if (!Fifo::UseDeterministicGPUThread())
      PixelEngine::SetToken(static_cast<u16>(bp.newvalue & 0xFFFF), true);
    DEBUG_LOG(VIDEO, "SetPEToken + INT 0x%04x", (bp.newvalue & 0xFFFF));
    return;

  // ------------------------
  // EFB copy command. This copies a rectangle from the EFB to either RAM in a texture format or to
  // XFB as YUYV.
  // It can also optionally clear the EFB while copying from it. To emulate this, we of course copy
  // first and clear afterwards.
  case BPMEM_TRIGGER_EFB_COPY:  // Copy EFB Region or Render to the XFB or Clear the screen.
  {
    // The bottom right is within the rectangle
    // The values in bpmem.copyTexSrcXY and bpmem.copyTexSrcWH are updated in case 0x49 and 0x4a in
    // this function

    u32 destAddr = bpmem.copyTexDest << 5;
    u32 destStride = bpmem.copyMipMapStrideChannels << 5;

    EFBRectangle srcRect;
    srcRect.left = (int)bpmem.copyTexSrcXY.x;
    srcRect.top = (int)bpmem.copyTexSrcXY.y;

    // Here Width+1 like Height, otherwise some textures are corrupted already since the native
    // resolution.
    // TODO: What's the behavior of out of bound access?
    srcRect.right = (int)(bpmem.copyTexSrcXY.x + bpmem.copyTexSrcWH.x + 1);
    srcRect.bottom = (int)(bpmem.copyTexSrcXY.y + bpmem.copyTexSrcWH.y + 1);

    UPE_Copy PE_copy = bpmem.triggerEFBCopy;

    // Check if we are to copy from the EFB or draw to the XFB
    if (PE_copy.copy_to_xfb == 0)
    {
      // bpmem.zcontrol.pixel_format to PEControl::Z24 is when the game wants to copy from ZBuffer
      // (Zbuffer uses 24-bit Format)
      TextureCacheBase::CopyRenderTargetToTexture(destAddr, PE_copy.tp_realFormat(), destStride,
                                                  bpmem.zcontrol.pixel_format, srcRect,
                                                  !!PE_copy.intensity_fmt, !!PE_copy.half_scale);
    }
    else
    {
      // We should be able to get away with deactivating the current bbox tracking
      // here. Not sure if there's a better spot to put this.
      // the number of lines copied is determined by the y scale * source efb height

      BoundingBox::active = false;

      float yScale;
      if (PE_copy.scale_invert)
        yScale = 256.0f / (float)bpmem.dispcopyyscale;
      else
        yScale = (float)bpmem.dispcopyyscale / 256.0f;

      float num_xfb_lines = 1.0f + bpmem.copyTexSrcWH.y * yScale;

      u32 height = static_cast<u32>(num_xfb_lines);
      if (height > MAX_XFB_HEIGHT)
      {
        INFO_LOG(VIDEO, "Tried to scale EFB to too many XFB lines: %d (%f)", height, num_xfb_lines);
        height = MAX_XFB_HEIGHT;
      }

      DEBUG_LOG(VIDEO, "RenderToXFB: destAddr: %08x | srcRect {%d %d %d %d} | fbWidth: %u | "
                       "fbStride: %u | fbHeight: %u",
                destAddr, srcRect.left, srcRect.top, srcRect.right, srcRect.bottom,
                bpmem.copyTexSrcWH.x + 1, destStride, height);
      Renderer::RenderToXFB(destAddr, srcRect, destStride, height, s_gammaLUT[PE_copy.gamma]);
    }

    // Clear the rectangular region after copying it.
    if (PE_copy.clear)
    {
      ClearScreen(srcRect);
    }

    return;
  }
  case BPMEM_LOADTLUT0:  // This one updates bpmem.tlutXferSrc, no need to do anything here.
    return;
  case BPMEM_LOADTLUT1:  // Load a Texture Look Up Table
  {
    u32 tlutTMemAddr = (bp.newvalue & 0x3FF) << 9;
    u32 tlutXferCount = (bp.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().bWii)
      addr = addr & 0x01FFFFFF;

    Memory::CopyFromEmu(texMem + tlutTMemAddr, addr, tlutXferCount);

    if (g_bRecordFifoData)
      FifoRecorder::GetInstance().UseMemory(addr, tlutXferCount, MemoryUpdate::TMEM);

    return;
  }
  case BPMEM_FOGRANGE:  // Fog Settings Control
  case BPMEM_FOGRANGE + 1:
  case BPMEM_FOGRANGE + 2:
  case BPMEM_FOGRANGE + 3:
  case BPMEM_FOGRANGE + 4:
  case BPMEM_FOGRANGE + 5:
    if (bp.changes)
      PixelShaderManager::SetFogRangeAdjustChanged();
    return;
  case BPMEM_FOGPARAM0:
  case BPMEM_FOGBMAGNITUDE:
  case BPMEM_FOGBEXPONENT:
  case BPMEM_FOGPARAM3:
    if (bp.changes)
      PixelShaderManager::SetFogParamChanged();
    return;
  case BPMEM_FOGCOLOR:  // Fog Color
    if (bp.changes)
      PixelShaderManager::SetFogColorChanged();
    return;
  case BPMEM_ALPHACOMPARE:  // Compare Alpha Values
    PRIM_LOG("alphacmp: ref0=%d, ref1=%d, comp0=%d, comp1=%d, logic=%d", (int)bpmem.alpha_test.ref0,
             (int)bpmem.alpha_test.ref1, (int)bpmem.alpha_test.comp0, (int)bpmem.alpha_test.comp1,
             (int)bpmem.alpha_test.logic);
    if (bp.changes & 0xFFFF)
      PixelShaderManager::SetAlpha();
    if (bp.changes)
      g_renderer->SetColorMask();
    return;
  case BPMEM_BIAS:  // BIAS
    PRIM_LOG("ztex bias=0x%x", bpmem.ztex1.bias);
    if (bp.changes)
      PixelShaderManager::SetZTextureBias();
    return;
  case BPMEM_ZTEX2:  // Z Texture type
  {
    if (bp.changes & 3)
      PixelShaderManager::SetZTextureTypeChanged();
#if defined(_DEBUG) || defined(DEBUGFAST)
    const char* pzop[] = {"DISABLE", "ADD", "REPLACE", "?"};
    const char* pztype[] = {"Z8", "Z16", "Z24", "?"};
    PRIM_LOG("ztex op=%s, type=%s", pzop[bpmem.ztex2.op], pztype[bpmem.ztex2.type]);
#endif
  }
    return;
  // ----------------------------------
  // Display Copy Filtering Control - GX_SetCopyFilter(u8 aa,u8 sample_pattern[12][2],u8 vf,u8
  // vfilter[7])
  // Fields: Destination, Frame2Field, Gamma, Source
  // ----------------------------------
  case BPMEM_DISPLAYCOPYFILTER:      // if (aa) { use sample_pattern } else { use 666666 }
  case BPMEM_DISPLAYCOPYFILTER + 1:  // if (aa) { use sample_pattern } else { use 666666 }
  case BPMEM_DISPLAYCOPYFILTER + 2:  // if (aa) { use sample_pattern } else { use 666666 }
  case BPMEM_DISPLAYCOPYFILTER + 3:  // if (aa) { use sample_pattern } else { use 666666 }
  case BPMEM_COPYFILTER0:            // if (vf) { use vfilter } else { use 595000 }
  case BPMEM_COPYFILTER1:            // if (vf) { use vfilter } else { use 000015 }
    return;
  // -----------------------------------
  // Interlacing Control
  // -----------------------------------
  case BPMEM_FIELDMASK:  // GX_SetFieldMask(u8 even_mask,u8 odd_mask)
  case BPMEM_FIELDMODE:  // GX_SetFieldMode(u8 field_mode,u8 half_aspect_ratio)
    // TODO
    return;
  // ----------------------------------------
  // Unimportant regs (Clock, Perf, ...)
  // ----------------------------------------
  case BPMEM_BUSCLOCK0:   // TB Bus Clock ?
  case BPMEM_BUSCLOCK1:   // TB Bus Clock ?
  case BPMEM_PERF0_TRI:   // Perf: Triangles
  case BPMEM_PERF0_QUAD:  // Perf: Quads
  case BPMEM_PERF1:       // Perf: Some Clock, Texels, TX, TC
    break;
  // ----------------
  // EFB Copy config
  // ----------------
  case BPMEM_EFB_TL:    // EFB Source Rect. Top, Left
  case BPMEM_EFB_BR:    // EFB Source Rect. Bottom, Right (w, h - 1)
  case BPMEM_EFB_ADDR:  // EFB Target Address
    return;
  // --------------
  // Clear Config
  // --------------
  case BPMEM_CLEAR_AR:  // Alpha and Red Components
  case BPMEM_CLEAR_GB:  // Green and Blue Components
  case BPMEM_CLEAR_Z:   // Z Components (24-bit Zbuffer)
    return;
  // -------------------------
  // Bounding Box Control
  // -------------------------
  case BPMEM_CLEARBBOX1:
  case BPMEM_CLEARBBOX2:
    // Don't compute bounding box if this frame is being skipped!
    // Wrong but valid values are better than bogus values...
    if (!Fifo::WillSkipCurrentFrame())
    {
      u8 offset = bp.address & 2;
      BoundingBox::active = true;

      if (g_ActiveConfig.backend_info.bSupportsBBox && g_ActiveConfig.bBBoxEnable)
      {
        g_renderer->BBoxWrite(offset, bp.newvalue & 0x3ff);
        g_renderer->BBoxWrite(offset + 1, bp.newvalue >> 10);
      }
    }
    return;
  case BPMEM_TEXINVALIDATE:
    // TODO: Needs some restructuring in TextureCacheBase.
    return;

  case BPMEM_ZCOMPARE:  // Set the Z-Compare and EFB pixel format
    OnPixelFormatChange();
    if (bp.changes & 7)
    {
      SetBlendMode();  // dual source could be activated by changing to PIXELFMT_RGBA6_Z24
      g_renderer->SetColorMask();  // alpha writing needs to be disabled if the new pixel format
                                   // doesn't have an alpha channel
    }
    return;

  case BPMEM_MIPMAP_STRIDE:  // MipMap Stride Channel
  case BPMEM_COPYYSCALE:     // Display Copy Y Scale

  /* 24 RID
   * 21 BC3 - Ind. Tex Stage 3 NTexCoord
   * 18 BI3 - Ind. Tex Stage 3 NTexMap
   * 15 BC2 - Ind. Tex Stage 2 NTexCoord
   * 12 BI2 - Ind. Tex Stage 2 NTexMap
   * 9 BC1 - Ind. Tex Stage 1 NTexCoord
   * 6 BI1 - Ind. Tex Stage 1 NTexMap
   * 3 BC0 - Ind. Tex Stage 0 NTexCoord
   * 0 BI0 - Ind. Tex Stage 0 NTexMap */
  case BPMEM_IREF:

  case BPMEM_TEV_KSEL:      // Texture Environment Swap Mode Table 0
  case BPMEM_TEV_KSEL + 1:  // Texture Environment Swap Mode Table 1
  case BPMEM_TEV_KSEL + 2:  // Texture Environment Swap Mode Table 2
  case BPMEM_TEV_KSEL + 3:  // Texture Environment Swap Mode Table 3
  case BPMEM_TEV_KSEL + 4:  // Texture Environment Swap Mode Table 4
  case BPMEM_TEV_KSEL + 5:  // Texture Environment Swap Mode Table 5
  case BPMEM_TEV_KSEL + 6:  // Texture Environment Swap Mode Table 6
  case BPMEM_TEV_KSEL + 7:  // Texture Environment Swap Mode Table 7

  /* This Register can be used to limit to which bits of BP registers is
   * actually written to. The mask is only valid for the next BP write,
   * and will reset itself afterwards. It's handled as a special case in
   * LoadBPReg. */
  case BPMEM_BP_MASK:

  case BPMEM_IND_IMASK:  // Index Mask ?
  case BPMEM_REVBITS:    // Always set to 0x0F when GX_InitRevBits() is called.
    return;

  case BPMEM_CLEAR_PIXEL_PERF:
    // GXClearPixMetric writes 0xAAA here, Sunshine alternates this register between values 0x000
    // and 0xAAA
    if (PerfQueryBase::ShouldEmulate())
      g_perf_query->ResetQuery();
    return;

  case BPMEM_PRELOAD_ADDR:
  case BPMEM_PRELOAD_TMEMEVEN:
  case BPMEM_PRELOAD_TMEMODD:  // Used when PRELOAD_MODE is set
    return;

  case BPMEM_PRELOAD_MODE:  // Set to 0 when GX_TexModeSync() is called.
    // if this is different from 0, manual TMEM management is used (GX_PreloadEntireTexture).
    if (bp.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 bytes_read = 0;
      u32 tmem_addr_even = tmem_cfg.preload_tmem_even * TMEM_LINE_SIZE;

      if (tmem_cfg.preload_tile_info.type != 3)
      {
        bytes_read = tmem_cfg.preload_tile_info.count * TMEM_LINE_SIZE;
        if (tmem_addr_even + bytes_read > TMEM_SIZE)
          bytes_read = TMEM_SIZE - tmem_addr_even;

        Memory::CopyFromEmu(texMem + tmem_addr_even, src_addr, bytes_read);
      }
      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 (u32 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 + bytes_read, TMEM_LINE_SIZE);
          memcpy(texMem + tmem_addr_odd, src_ptr + bytes_read + TMEM_LINE_SIZE, TMEM_LINE_SIZE);
          tmem_addr_even += TMEM_LINE_SIZE;
          tmem_addr_odd += TMEM_LINE_SIZE;
          bytes_read += TMEM_LINE_SIZE * 2;
        }
      }

      if (g_bRecordFifoData)
        FifoRecorder::GetInstance().UseMemory(src_addr, bytes_read, MemoryUpdate::TMEM);
    }
    return;

  // ---------------------------------------------------
  // Set the TEV Color
  // ---------------------------------------------------
  //
  // NOTE: Each of these registers actually maps to two variables internally.
  //       There's a bit that specifies which one is currently written to.
  //
  // NOTE: Some games write only to the RA register (or only to the BG register).
  //       We may not assume that the unwritten register holds a valid value, hence
  //       both component pairs need to be loaded individually.
  case BPMEM_TEV_COLOR_RA:
  case BPMEM_TEV_COLOR_RA + 2:
  case BPMEM_TEV_COLOR_RA + 4:
  case BPMEM_TEV_COLOR_RA + 6:
  {
    int num = (bp.address >> 1) & 0x3;
    if (bpmem.tevregs[num].type_ra)
    {
      PixelShaderManager::SetTevKonstColor(num, 0, (s32)bpmem.tevregs[num].red);
      PixelShaderManager::SetTevKonstColor(num, 3, (s32)bpmem.tevregs[num].alpha);
    }
    else
    {
      PixelShaderManager::SetTevColor(num, 0, (s32)bpmem.tevregs[num].red);
      PixelShaderManager::SetTevColor(num, 3, (s32)bpmem.tevregs[num].alpha);
    }
    return;
  }

  case BPMEM_TEV_COLOR_BG:
  case BPMEM_TEV_COLOR_BG + 2:
  case BPMEM_TEV_COLOR_BG + 4:
  case BPMEM_TEV_COLOR_BG + 6:
  {
    int num = (bp.address >> 1) & 0x3;
    if (bpmem.tevregs[num].type_bg)
    {
      PixelShaderManager::SetTevKonstColor(num, 1, (s32)bpmem.tevregs[num].green);
      PixelShaderManager::SetTevKonstColor(num, 2, (s32)bpmem.tevregs[num].blue);
    }
    else
    {
      PixelShaderManager::SetTevColor(num, 1, (s32)bpmem.tevregs[num].green);
      PixelShaderManager::SetTevColor(num, 2, (s32)bpmem.tevregs[num].blue);
    }
    return;
  }

  default:
    break;
  }

  switch (bp.address & 0xFC)  // Texture sampler filter
  {
  // -------------------------
  // Texture Environment Order
  // -------------------------
  case BPMEM_TREF:
  case BPMEM_TREF + 4:
    return;
  // ----------------------
  // Set wrap size
  // ----------------------
  case BPMEM_SU_SSIZE:
  case BPMEM_SU_TSIZE:
  case BPMEM_SU_SSIZE + 2:
  case BPMEM_SU_TSIZE + 2:
  case BPMEM_SU_SSIZE + 4:
  case BPMEM_SU_TSIZE + 4:
  case BPMEM_SU_SSIZE + 6:
  case BPMEM_SU_TSIZE + 6:
  case BPMEM_SU_SSIZE + 8:
  case BPMEM_SU_TSIZE + 8:
  case BPMEM_SU_SSIZE + 10:
  case BPMEM_SU_TSIZE + 10:
  case BPMEM_SU_SSIZE + 12:
  case BPMEM_SU_TSIZE + 12:
  case BPMEM_SU_SSIZE + 14:
  case BPMEM_SU_TSIZE + 14:
    if (bp.changes)
    {
      PixelShaderManager::SetTexCoordChanged((bp.address - BPMEM_SU_SSIZE) >> 1);
      GeometryShaderManager::SetTexCoordChanged((bp.address - BPMEM_SU_SSIZE) >> 1);
    }
    return;
  // ------------------------
  // BPMEM_TX_SETMODE0 - (Texture lookup and filtering mode) LOD/BIAS Clamp, MaxAnsio, LODBIAS,
  // DiagLoad, Min Filter, Mag Filter, Wrap T, S
  // BPMEM_TX_SETMODE1 - (LOD Stuff) - Max LOD, Min LOD
  // ------------------------
  case BPMEM_TX_SETMODE0:  // (0x90 for linear)
  case BPMEM_TX_SETMODE0_4:
    return;

  case BPMEM_TX_SETMODE1:
  case BPMEM_TX_SETMODE1_4:
    return;
  // --------------------------------------------
  // BPMEM_TX_SETIMAGE0 - Texture width, height, format
  // BPMEM_TX_SETIMAGE1 - even LOD address in TMEM - Image Type, Cache Height, Cache Width, TMEM
  // Offset
  // BPMEM_TX_SETIMAGE2 - odd LOD address in TMEM - Cache Height, Cache Width, TMEM Offset
  // BPMEM_TX_SETIMAGE3 - Address of Texture in main memory
  // --------------------------------------------
  case BPMEM_TX_SETIMAGE0:
  case BPMEM_TX_SETIMAGE0_4:
  case BPMEM_TX_SETIMAGE1:
  case BPMEM_TX_SETIMAGE1_4:
  case BPMEM_TX_SETIMAGE2:
  case BPMEM_TX_SETIMAGE2_4:
  case BPMEM_TX_SETIMAGE3:
  case BPMEM_TX_SETIMAGE3_4:
    return;
  // -------------------------------
  // Set a TLUT
  // BPMEM_TX_SETTLUT - Format, TMEM Offset (offset of TLUT from start of TMEM high bank > > 5)
  // -------------------------------
  case BPMEM_TX_SETTLUT:
  case BPMEM_TX_SETTLUT_4:
    return;

  default:
    break;
  }

  switch (bp.address & 0xF0)
  {
  // --------------
  // Indirect Tev
  // --------------
  case BPMEM_IND_CMD:
  case BPMEM_IND_CMD + 1:
  case BPMEM_IND_CMD + 2:
  case BPMEM_IND_CMD + 3:
  case BPMEM_IND_CMD + 4:
  case BPMEM_IND_CMD + 5:
  case BPMEM_IND_CMD + 6:
  case BPMEM_IND_CMD + 7:
  case BPMEM_IND_CMD + 8:
  case BPMEM_IND_CMD + 9:
  case BPMEM_IND_CMD + 10:
  case BPMEM_IND_CMD + 11:
  case BPMEM_IND_CMD + 12:
  case BPMEM_IND_CMD + 13:
  case BPMEM_IND_CMD + 14:
  case BPMEM_IND_CMD + 15:
    return;
  // --------------------------------------------------
  // Set Color/Alpha of a Tev
  // BPMEM_TEV_COLOR_ENV - Dest, Shift, Clamp, Sub, Bias, Sel A, Sel B, Sel C, Sel D
  // BPMEM_TEV_ALPHA_ENV - Dest, Shift, Clamp, Sub, Bias, Sel A, Sel B, Sel C, Sel D, T Swap, R Swap
  // --------------------------------------------------
  case BPMEM_TEV_COLOR_ENV:  // Texture Environment 1
  case BPMEM_TEV_ALPHA_ENV:
  case BPMEM_TEV_COLOR_ENV + 2:  // Texture Environment 2
  case BPMEM_TEV_ALPHA_ENV + 2:
  case BPMEM_TEV_COLOR_ENV + 4:  // Texture Environment 3
  case BPMEM_TEV_ALPHA_ENV + 4:
  case BPMEM_TEV_COLOR_ENV + 6:  // Texture Environment 4
  case BPMEM_TEV_ALPHA_ENV + 6:
  case BPMEM_TEV_COLOR_ENV + 8:  // Texture Environment 5
  case BPMEM_TEV_ALPHA_ENV + 8:
  case BPMEM_TEV_COLOR_ENV + 10:  // Texture Environment 6
  case BPMEM_TEV_ALPHA_ENV + 10:
  case BPMEM_TEV_COLOR_ENV + 12:  // Texture Environment 7
  case BPMEM_TEV_ALPHA_ENV + 12:
  case BPMEM_TEV_COLOR_ENV + 14:  // Texture Environment 8
  case BPMEM_TEV_ALPHA_ENV + 14:
  case BPMEM_TEV_COLOR_ENV + 16:  // Texture Environment 9
  case BPMEM_TEV_ALPHA_ENV + 16:
  case BPMEM_TEV_COLOR_ENV + 18:  // Texture Environment 10
  case BPMEM_TEV_ALPHA_ENV + 18:
  case BPMEM_TEV_COLOR_ENV + 20:  // Texture Environment 11
  case BPMEM_TEV_ALPHA_ENV + 20:
  case BPMEM_TEV_COLOR_ENV + 22:  // Texture Environment 12
  case BPMEM_TEV_ALPHA_ENV + 22:
  case BPMEM_TEV_COLOR_ENV + 24:  // Texture Environment 13
  case BPMEM_TEV_ALPHA_ENV + 24:
  case BPMEM_TEV_COLOR_ENV + 26:  // Texture Environment 14
  case BPMEM_TEV_ALPHA_ENV + 26:
  case BPMEM_TEV_COLOR_ENV + 28:  // Texture Environment 15
  case BPMEM_TEV_ALPHA_ENV + 28:
  case BPMEM_TEV_COLOR_ENV + 30:  // Texture Environment 16
  case BPMEM_TEV_ALPHA_ENV + 30:
    return;
  default:
    break;
  }

  WARN_LOG(VIDEO, "Unknown BP opcode: address = 0x%08x value = 0x%08x", bp.address, bp.newvalue);
}

// Call browser: OpcodeDecoding.cpp ExecuteDisplayList > Decode() > LoadBPReg()
void LoadBPReg(u32 value0)
{
  int regNum = value0 >> 24;
  int oldval = ((u32*)&bpmem)[regNum];
  int newval = (oldval & ~bpmem.bpMask) | (value0 & bpmem.bpMask);
  int changes = (oldval ^ newval) & 0xFFFFFF;

  BPCmd bp = {regNum, changes, newval};

  // Reset the mask register if we're not trying to set it ourselves.
  if (regNum != BPMEM_BP_MASK)
    bpmem.bpMask = 0xFFFFFF;

  BPWritten(bp);
}

void LoadBPRegPreprocess(u32 value0)
{
  int regNum = value0 >> 24;
  // masking could hypothetically be a problem
  u32 newval = value0 & 0xffffff;
  switch (regNum)
  {
  case BPMEM_SETDRAWDONE:
    if ((newval & 0xff) == 0x02)
      PixelEngine::SetFinish();
    break;
  case BPMEM_PE_TOKEN_ID:
    PixelEngine::SetToken(newval & 0xffff, false);
    break;
  case BPMEM_PE_TOKEN_INT_ID:  // Pixel Engine Interrupt Token ID
    PixelEngine::SetToken(newval & 0xffff, true);
    break;
  }
}

void GetBPRegInfo(const u8* data, std::string* name, std::string* desc)
{
  const char* no_yes[2] = {"No", "Yes"};

  u8 cmd = data[0];
  u32 cmddata = Common::swap32(*(u32*)data) & 0xFFFFFF;
  switch (cmd)
  {
// Macro to set the register name and make sure it was written correctly via compile time assertion
#define SetRegName(reg)                                                                            \
  *name = #reg;                                                                                    \
  (void)(reg);

  case BPMEM_GENMODE:  // 0x00
    SetRegName(BPMEM_GENMODE);
    // TODO: Description
    break;

  case BPMEM_DISPLAYCOPYFILTER:  // 0x01
    // TODO: This is actually the sample pattern used for copies from an antialiased EFB
    SetRegName(BPMEM_DISPLAYCOPYFILTER);
    // TODO: Description
    break;

  case 0x02:  // 0x02
  case 0x03:  // 0x03
  case 0x04:  // 0x04
    // TODO: same as BPMEM_DISPLAYCOPYFILTER
    break;

  case BPMEM_IND_MTXA:  // 0x06
  case BPMEM_IND_MTXA + 3:
  case BPMEM_IND_MTXA + 6:
    SetRegName(BPMEM_IND_MTXA);
    // TODO: Description
    break;

  case BPMEM_IND_MTXB:  // 0x07
  case BPMEM_IND_MTXB + 3:
  case BPMEM_IND_MTXB + 6:
    SetRegName(BPMEM_IND_MTXB);
    // TODO: Descriptio
    break;

  case BPMEM_IND_MTXC:  // 0x08
  case BPMEM_IND_MTXC + 3:
  case BPMEM_IND_MTXC + 6:
    SetRegName(BPMEM_IND_MTXC);
    // TODO: Description
    break;

  case BPMEM_IND_IMASK:  // 0x0F
    SetRegName(BPMEM_IND_IMASK);
    // TODO: Description
    break;

  case BPMEM_IND_CMD:  // 0x10
  case BPMEM_IND_CMD + 1:
  case BPMEM_IND_CMD + 2:
  case BPMEM_IND_CMD + 3:
  case BPMEM_IND_CMD + 4:
  case BPMEM_IND_CMD + 5:
  case BPMEM_IND_CMD + 6:
  case BPMEM_IND_CMD + 7:
  case BPMEM_IND_CMD + 8:
  case BPMEM_IND_CMD + 9:
  case BPMEM_IND_CMD + 10:
  case BPMEM_IND_CMD + 11:
  case BPMEM_IND_CMD + 12:
  case BPMEM_IND_CMD + 13:
  case BPMEM_IND_CMD + 14:
  case BPMEM_IND_CMD + 15:
    SetRegName(BPMEM_IND_CMD);
    // TODO: Description
    break;

  case BPMEM_SCISSORTL:  // 0x20
    SetRegName(BPMEM_SCISSORTL);
    // TODO: Description
    break;

  case BPMEM_SCISSORBR:  // 0x21
    SetRegName(BPMEM_SCISSORBR);
    // TODO: Description
    break;

  case BPMEM_LINEPTWIDTH:  // 0x22
    SetRegName(BPMEM_LINEPTWIDTH);
    // TODO: Description
    break;

  case BPMEM_PERF0_TRI:  // 0x23
    SetRegName(BPMEM_PERF0_TRI);
    // TODO: Description
    break;

  case BPMEM_PERF0_QUAD:  // 0x24
    SetRegName(BPMEM_PERF0_QUAD);
    // TODO: Description
    break;

  case BPMEM_RAS1_SS0:  // 0x25
    SetRegName(BPMEM_RAS1_SS0);
    // TODO: Description
    break;

  case BPMEM_RAS1_SS1:  // 0x26
    SetRegName(BPMEM_RAS1_SS1);
    // TODO: Description
    break;

  case BPMEM_IREF:  // 0x27
    SetRegName(BPMEM_IREF);
    // TODO: Description
    break;

  case BPMEM_TREF:  // 0x28
  case BPMEM_TREF + 1:
  case BPMEM_TREF + 2:
  case BPMEM_TREF + 3:
  case BPMEM_TREF + 4:
  case BPMEM_TREF + 5:
  case BPMEM_TREF + 6:
  case BPMEM_TREF + 7:
    SetRegName(BPMEM_TREF);
    // TODO: Description
    break;

  case BPMEM_SU_SSIZE:  // 0x30
  case BPMEM_SU_SSIZE + 2:
  case BPMEM_SU_SSIZE + 4:
  case BPMEM_SU_SSIZE + 6:
  case BPMEM_SU_SSIZE + 8:
  case BPMEM_SU_SSIZE + 10:
  case BPMEM_SU_SSIZE + 12:
  case BPMEM_SU_SSIZE + 14:
    SetRegName(BPMEM_SU_SSIZE);
    // TODO: Description
    break;

  case BPMEM_SU_TSIZE:  // 0x31
  case BPMEM_SU_TSIZE + 2:
  case BPMEM_SU_TSIZE + 4:
  case BPMEM_SU_TSIZE + 6:
  case BPMEM_SU_TSIZE + 8:
  case BPMEM_SU_TSIZE + 10:
  case BPMEM_SU_TSIZE + 12:
  case BPMEM_SU_TSIZE + 14:
    SetRegName(BPMEM_SU_TSIZE);
    // TODO: Description
    break;

  case BPMEM_ZMODE:  // 0x40
    SetRegName(BPMEM_ZMODE);
    // TODO: Description
    break;

  case BPMEM_BLENDMODE:  // 0x41
  {
    SetRegName(BPMEM_BLENDMODE);
    BlendMode mode;
    mode.hex = cmddata;
    const char* dstfactors[] = {"0",         "1",           "src_color", "1-src_color",
                                "src_alpha", "1-src_alpha", "dst_alpha", "1-dst_alpha"};
    const char* srcfactors[] = {"0",         "1",           "dst_color", "1-dst_color",
                                "src_alpha", "1-src_alpha", "dst_alpha", "1-dst_alpha"};
    const char* logicmodes[] = {"0",     "s & d",  "s & ~d",   "s",        "~s & d", "d",
                                "s ^ d", "s | d",  "~(s | d)", "~(s ^ d)", "~d",     "s | ~d",
                                "~s",    "~s | d", "~(s & d)", "1"};
    *desc = StringFromFormat(
        "Enable: %s\n"
        "Logic ops: %s\n"
        "Dither: %s\n"
        "Color write: %s\n"
        "Alpha write: %s\n"
        "Dest factor: %s\n"
        "Source factor: %s\n"
        "Subtract: %s\n"
        "Logic mode: %s\n",
        no_yes[mode.blendenable], no_yes[mode.logicopenable], no_yes[mode.dither],
        no_yes[mode.colorupdate], no_yes[mode.alphaupdate], dstfactors[mode.dstfactor],
        srcfactors[mode.srcfactor], no_yes[mode.subtract], logicmodes[mode.logicmode]);
  }
  break;

  case BPMEM_CONSTANTALPHA:  // 0x42
    SetRegName(BPMEM_CONSTANTALPHA);
    // TODO: Description
    break;

  case BPMEM_ZCOMPARE:  // 0x43
  {
    SetRegName(BPMEM_ZCOMPARE);
    PEControl config;
    config.hex = cmddata;
    const char* pixel_formats[] = {"RGB8_Z24", "RGBA6_Z24", "RGB565_Z16", "Z24",
                                   "Y8",       "U8",        "V8",         "YUV420"};
    const char* zformats[] = {
        "linear",     "compressed (near)",     "compressed (mid)",     "compressed (far)",
        "inv linear", "compressed (inv near)", "compressed (inv mid)", "compressed (inv far)"};
    *desc = StringFromFormat("EFB pixel format: %s\n"
                             "Depth format: %s\n"
                             "Early depth test: %s\n",
                             pixel_formats[config.pixel_format], zformats[config.zformat],
                             no_yes[config.early_ztest]);
  }
  break;

  case BPMEM_FIELDMASK:  // 0x44
    SetRegName(BPMEM_FIELDMASK);
    // TODO: Description
    break;

  case BPMEM_SETDRAWDONE:  // 0x45
    SetRegName(BPMEM_SETDRAWDONE);
    // TODO: Description
    break;

  case BPMEM_BUSCLOCK0:  // 0x46
    SetRegName(BPMEM_BUSCLOCK0);
    // TODO: Description
    break;

  case BPMEM_PE_TOKEN_ID:  // 0x47
    SetRegName(BPMEM_PE_TOKEN_ID);
    // TODO: Description
    break;

  case BPMEM_PE_TOKEN_INT_ID:  // 0x48
    SetRegName(BPMEM_PE_TOKEN_INT_ID);
    // TODO: Description
    break;

  case BPMEM_EFB_TL:  // 0x49
  {
    SetRegName(BPMEM_EFB_TL);
    X10Y10 left_top;
    left_top.hex = cmddata;
    *desc = StringFromFormat("Left: %d\nTop: %d", left_top.x, left_top.y);
  }
  break;

  case BPMEM_EFB_BR:  // 0x4A
  {
    // TODO: Misleading name, should be BPMEM_EFB_WH instead
    SetRegName(BPMEM_EFB_BR);
    X10Y10 width_height;
    width_height.hex = cmddata;
    *desc = StringFromFormat("Width: %d\nHeight: %d", width_height.x + 1, width_height.y + 1);
  }
  break;

  case BPMEM_EFB_ADDR:  // 0x4B
    SetRegName(BPMEM_EFB_ADDR);
    *desc = StringFromFormat("Target address (32 byte aligned): 0x%06X", cmddata << 5);
    break;

  case BPMEM_MIPMAP_STRIDE:  // 0x4D
    SetRegName(BPMEM_MIPMAP_STRIDE);
    // TODO: Description
    break;

  case BPMEM_COPYYSCALE:  // 0x4E
    SetRegName(BPMEM_COPYYSCALE);
    *desc = StringFromFormat("Scaling factor (XFB copy only): 0x%X (%f or inverted %f)", cmddata,
                             (float)cmddata / 256.f, 256.f / (float)cmddata);
    break;

  case BPMEM_CLEAR_AR:  // 0x4F
    SetRegName(BPMEM_CLEAR_AR);
    *desc = StringFromFormat("Alpha: 0x%02X\nRed: 0x%02X", (cmddata & 0xFF00) >> 8, cmddata & 0xFF);
    break;

  case BPMEM_CLEAR_GB:  // 0x50
    SetRegName(BPMEM_CLEAR_GB);
    *desc =
        StringFromFormat("Green: 0x%02X\nBlue: 0x%02X", (cmddata & 0xFF00) >> 8, cmddata & 0xFF);
    break;

  case BPMEM_CLEAR_Z:  // 0x51
    SetRegName(BPMEM_CLEAR_Z);
    *desc = StringFromFormat("Z value: 0x%06X", cmddata);
    break;

  case BPMEM_TRIGGER_EFB_COPY:  // 0x52
  {
    SetRegName(BPMEM_TRIGGER_EFB_COPY);
    UPE_Copy copy;
    copy.Hex = cmddata;
    *desc = StringFromFormat("Clamping: %s\n"
                             "Converting from RGB to YUV: %s\n"
                             "Target pixel format: 0x%X\n"
                             "Gamma correction: %s\n"
                             "Mipmap filter: %s\n"
                             "Vertical scaling: %s\n"
                             "Clear: %s\n"
                             "Frame to field: 0x%01X\n"
                             "Copy to XFB: %s\n"
                             "Intensity format: %s\n"
                             "Automatic color conversion: %s",
                             (copy.clamp0 && copy.clamp1) ? "Top and Bottom" : (copy.clamp0) ?
                                                            "Top only" :
                                                            (copy.clamp1) ? "Bottom only" : "None",
                             no_yes[copy.yuv], copy.tp_realFormat(),
                             (copy.gamma == 0) ? "1.0" : (copy.gamma == 1) ?
                                                 "1.7" :
                                                 (copy.gamma == 2) ? "2.2" : "Invalid value 0x3?",
                             no_yes[copy.half_scale], no_yes[copy.scale_invert], no_yes[copy.clear],
                             (u32)copy.frame_to_field, no_yes[copy.copy_to_xfb],
                             no_yes[copy.intensity_fmt], no_yes[copy.auto_conv]);
  }
  break;

  case BPMEM_COPYFILTER0:  // 0x53
    SetRegName(BPMEM_COPYFILTER0);
    // TODO: Description
    break;

  case BPMEM_COPYFILTER1:  // 0x54
    SetRegName(BPMEM_COPYFILTER1);
    // TODO: Description
    break;

  case BPMEM_CLEARBBOX1:  // 0x55
    SetRegName(BPMEM_CLEARBBOX1);
    // TODO: Description
    break;

  case BPMEM_CLEARBBOX2:  // 0x56
    SetRegName(BPMEM_CLEARBBOX2);
    // TODO: Description
    break;

  case BPMEM_CLEAR_PIXEL_PERF:  // 0x57
    SetRegName(BPMEM_CLEAR_PIXEL_PERF);
    // TODO: Description
    break;

  case BPMEM_REVBITS:  // 0x58
    SetRegName(BPMEM_REVBITS);
    // TODO: Description
    break;

  case BPMEM_SCISSOROFFSET:  // 0x59
    SetRegName(BPMEM_SCISSOROFFSET);
    // TODO: Description
    break;

  case BPMEM_PRELOAD_ADDR:  // 0x60
    SetRegName(BPMEM_PRELOAD_ADDR);
    // TODO: Description
    break;

  case BPMEM_PRELOAD_TMEMEVEN:  // 0x61
    SetRegName(BPMEM_PRELOAD_TMEMEVEN);
    // TODO: Description
    break;

  case BPMEM_PRELOAD_TMEMODD:  // 0x62
    SetRegName(BPMEM_PRELOAD_TMEMODD);
    // TODO: Description
    break;

  case BPMEM_PRELOAD_MODE:  // 0x63
    SetRegName(BPMEM_PRELOAD_MODE);
    // TODO: Description
    break;

  case BPMEM_LOADTLUT0:  // 0x64
    SetRegName(BPMEM_LOADTLUT0);
    // TODO: Description
    break;

  case BPMEM_LOADTLUT1:  // 0x65
    SetRegName(BPMEM_LOADTLUT1);
    // TODO: Description
    break;

  case BPMEM_TEXINVALIDATE:  // 0x66
    SetRegName(BPMEM_TEXINVALIDATE);
    // TODO: Description
    break;

  case BPMEM_PERF1:  // 0x67
    SetRegName(BPMEM_PERF1);
    // TODO: Description
    break;

  case BPMEM_FIELDMODE:  // 0x68
    SetRegName(BPMEM_FIELDMODE);
    // TODO: Description
    break;

  case BPMEM_BUSCLOCK1:  // 0x69
    SetRegName(BPMEM_BUSCLOCK1);
    // TODO: Description
    break;

  case BPMEM_TX_SETMODE0:  // 0x80
  case BPMEM_TX_SETMODE0 + 1:
  case BPMEM_TX_SETMODE0 + 2:
  case BPMEM_TX_SETMODE0 + 3:
    SetRegName(BPMEM_TX_SETMODE0);
    // TODO: Description
    break;

  case BPMEM_TX_SETMODE1:  // 0x84
  case BPMEM_TX_SETMODE1 + 1:
  case BPMEM_TX_SETMODE1 + 2:
  case BPMEM_TX_SETMODE1 + 3:
    SetRegName(BPMEM_TX_SETMODE1);
    // TODO: Description
    break;

  case BPMEM_TX_SETIMAGE0:  // 0x88
  case BPMEM_TX_SETIMAGE0 + 1:
  case BPMEM_TX_SETIMAGE0 + 2:
  case BPMEM_TX_SETIMAGE0 + 3:
  case BPMEM_TX_SETIMAGE0_4:  // 0xA8
  case BPMEM_TX_SETIMAGE0_4 + 1:
  case BPMEM_TX_SETIMAGE0_4 + 2:
  case BPMEM_TX_SETIMAGE0_4 + 3:
  {
    SetRegName(BPMEM_TX_SETIMAGE0);
    int texnum =
        (cmd < BPMEM_TX_SETIMAGE0_4) ? cmd - BPMEM_TX_SETIMAGE0 : cmd - BPMEM_TX_SETIMAGE0_4 + 4;
    TexImage0 teximg;
    teximg.hex = cmddata;
    *desc = StringFromFormat("Texture Unit: %i\n"
                             "Width: %i\n"
                             "Height: %i\n"
                             "Format: %x\n",
                             texnum, teximg.width + 1, teximg.height + 1, teximg.format);
  }
  break;

  case BPMEM_TX_SETIMAGE1:  // 0x8C
  case BPMEM_TX_SETIMAGE1 + 1:
  case BPMEM_TX_SETIMAGE1 + 2:
  case BPMEM_TX_SETIMAGE1 + 3:
  case BPMEM_TX_SETIMAGE1_4:  // 0xAC
  case BPMEM_TX_SETIMAGE1_4 + 1:
  case BPMEM_TX_SETIMAGE1_4 + 2:
  case BPMEM_TX_SETIMAGE1_4 + 3:
  {
    SetRegName(BPMEM_TX_SETIMAGE1);
    int texnum =
        (cmd < BPMEM_TX_SETIMAGE1_4) ? cmd - BPMEM_TX_SETIMAGE1 : cmd - BPMEM_TX_SETIMAGE1_4 + 4;
    TexImage1 teximg;
    teximg.hex = cmddata;
    *desc = StringFromFormat("Texture Unit: %i\n"
                             "Even TMEM Offset: %x\n"
                             "Even TMEM Width: %i\n"
                             "Even TMEM Height: %i\n"
                             "Cache is manually managed: %s\n",
                             texnum, teximg.tmem_even, teximg.cache_width, teximg.cache_height,
                             no_yes[teximg.image_type]);
  }
  break;

  case BPMEM_TX_SETIMAGE2:  // 0x90
  case BPMEM_TX_SETIMAGE2 + 1:
  case BPMEM_TX_SETIMAGE2 + 2:
  case BPMEM_TX_SETIMAGE2 + 3:
  case BPMEM_TX_SETIMAGE2_4:  // 0xB0
  case BPMEM_TX_SETIMAGE2_4 + 1:
  case BPMEM_TX_SETIMAGE2_4 + 2:
  case BPMEM_TX_SETIMAGE2_4 + 3:
  {
    SetRegName(BPMEM_TX_SETIMAGE2);
    int texnum =
        (cmd < BPMEM_TX_SETIMAGE2_4) ? cmd - BPMEM_TX_SETIMAGE2 : cmd - BPMEM_TX_SETIMAGE2_4 + 4;
    TexImage2 teximg;
    teximg.hex = cmddata;
    *desc = StringFromFormat("Texture Unit: %i\n"
                             "Odd TMEM Offset: %x\n"
                             "Odd TMEM Width: %i\n"
                             "Odd TMEM Height: %i\n",
                             texnum, teximg.tmem_odd, teximg.cache_width, teximg.cache_height);
  }
  break;

  case BPMEM_TX_SETIMAGE3:  // 0x94
  case BPMEM_TX_SETIMAGE3 + 1:
  case BPMEM_TX_SETIMAGE3 + 2:
  case BPMEM_TX_SETIMAGE3 + 3:
  case BPMEM_TX_SETIMAGE3_4:  // 0xB4
  case BPMEM_TX_SETIMAGE3_4 + 1:
  case BPMEM_TX_SETIMAGE3_4 + 2:
  case BPMEM_TX_SETIMAGE3_4 + 3:
  {
    SetRegName(BPMEM_TX_SETIMAGE3);
    int texnum =
        (cmd < BPMEM_TX_SETIMAGE3_4) ? cmd - BPMEM_TX_SETIMAGE3 : cmd - BPMEM_TX_SETIMAGE3_4 + 4;
    TexImage3 teximg;
    teximg.hex = cmddata;
    *desc = StringFromFormat("Texture %i source address (32 byte aligned): 0x%06X", texnum,
                             teximg.image_base << 5);
  }
  break;

  case BPMEM_TX_SETTLUT:  // 0x98
  case BPMEM_TX_SETTLUT + 1:
  case BPMEM_TX_SETTLUT + 2:
  case BPMEM_TX_SETTLUT + 3:
  case BPMEM_TX_SETTLUT_4:  // 0xB8
  case BPMEM_TX_SETTLUT_4 + 1:
  case BPMEM_TX_SETTLUT_4 + 2:
  case BPMEM_TX_SETTLUT_4 + 3:
    SetRegName(BPMEM_TX_SETTLUT);
    // TODO: Description
    break;

  case BPMEM_TEV_COLOR_ENV:  // 0xC0
  case BPMEM_TEV_COLOR_ENV + 2:
  case BPMEM_TEV_COLOR_ENV + 4:
  case BPMEM_TEV_COLOR_ENV + 8:
  case BPMEM_TEV_COLOR_ENV + 10:
  case BPMEM_TEV_COLOR_ENV + 12:
  case BPMEM_TEV_COLOR_ENV + 14:
  case BPMEM_TEV_COLOR_ENV + 16:
  case BPMEM_TEV_COLOR_ENV + 18:
  case BPMEM_TEV_COLOR_ENV + 20:
  case BPMEM_TEV_COLOR_ENV + 22:
  case BPMEM_TEV_COLOR_ENV + 24:
  case BPMEM_TEV_COLOR_ENV + 26:
  case BPMEM_TEV_COLOR_ENV + 28:
  case BPMEM_TEV_COLOR_ENV + 30:
  {
    SetRegName(BPMEM_TEV_COLOR_ENV);
    TevStageCombiner::ColorCombiner cc;
    cc.hex = cmddata;
    const char* tevin[] = {
        "prev.rgb", "prev.aaa", "c0.rgb",  "c0.aaa",  "c1.rgb", "c1.aaa", "c2.rgb",    "c2.aaa",
        "tex.rgb",  "tex.aaa",  "ras.rgb", "ras.aaa", "ONE",    "HALF",   "konst.rgb", "ZERO",
    };
    const char* tevbias[] = {"0", "+0.5", "-0.5", "compare"};
    const char* tevop[] = {"add", "sub"};
    const char* tevscale[] = {"1", "2", "4", "0.5"};
    const char* tevout[] = {"prev.rgb", "c0.rgb", "c1.rgb", "c2.rgb"};
    *desc = StringFromFormat("Tev stage: %d\n"
                             "a: %s\n"
                             "b: %s\n"
                             "c: %s\n"
                             "d: %s\n"
                             "Bias: %s\n"
                             "Op: %s\n"
                             "Clamp: %s\n"
                             "Scale factor: %s\n"
                             "Dest: %s\n",
                             (data[0] - BPMEM_TEV_COLOR_ENV) / 2, tevin[cc.a], tevin[cc.b],
                             tevin[cc.c], tevin[cc.d], tevbias[cc.bias], tevop[cc.op],
                             no_yes[cc.clamp], tevscale[cc.shift], tevout[cc.dest]);
    break;
  }

  case BPMEM_TEV_ALPHA_ENV:  // 0xC1
  case BPMEM_TEV_ALPHA_ENV + 2:
  case BPMEM_TEV_ALPHA_ENV + 4:
  case BPMEM_TEV_ALPHA_ENV + 6:
  case BPMEM_TEV_ALPHA_ENV + 8:
  case BPMEM_TEV_ALPHA_ENV + 10:
  case BPMEM_TEV_ALPHA_ENV + 12:
  case BPMEM_TEV_ALPHA_ENV + 14:
  case BPMEM_TEV_ALPHA_ENV + 16:
  case BPMEM_TEV_ALPHA_ENV + 18:
  case BPMEM_TEV_ALPHA_ENV + 20:
  case BPMEM_TEV_ALPHA_ENV + 22:
  case BPMEM_TEV_ALPHA_ENV + 24:
  case BPMEM_TEV_ALPHA_ENV + 26:
  case BPMEM_TEV_ALPHA_ENV + 28:
  case BPMEM_TEV_ALPHA_ENV + 30:
  {
    SetRegName(BPMEM_TEV_ALPHA_ENV);
    TevStageCombiner::AlphaCombiner ac;
    ac.hex = cmddata;
    const char* tevin[] = {
        "prev", "c0", "c1", "c2", "tex", "ras", "konst", "ZERO",
    };
    const char* tevbias[] = {"0", "+0.5", "-0.5", "compare"};
    const char* tevop[] = {"add", "sub"};
    const char* tevscale[] = {"1", "2", "4", "0.5"};
    const char* tevout[] = {"prev", "c0", "c1", "c2"};
    *desc =
        StringFromFormat("Tev stage: %d\n"
                         "a: %s\n"
                         "b: %s\n"
                         "c: %s\n"
                         "d: %s\n"
                         "Bias: %s\n"
                         "Op: %s\n"
                         "Clamp: %s\n"
                         "Scale factor: %s\n"
                         "Dest: %s\n"
                         "Ras sel: %d\n"
                         "Tex sel: %d\n",
                         (data[0] - BPMEM_TEV_ALPHA_ENV) / 2, tevin[ac.a], tevin[ac.b], tevin[ac.c],
                         tevin[ac.d], tevbias[ac.bias], tevop[ac.op], no_yes[ac.clamp],
                         tevscale[ac.shift], tevout[ac.dest], ac.rswap, ac.tswap);
    break;
  }

  case BPMEM_TEV_COLOR_RA:      // 0xE0
  case BPMEM_TEV_COLOR_RA + 2:  // 0xE2
  case BPMEM_TEV_COLOR_RA + 4:  // 0xE4
  case BPMEM_TEV_COLOR_RA + 6:  // 0xE6
    SetRegName(BPMEM_TEV_COLOR_RA);
    // TODO: Description
    break;

  case BPMEM_TEV_COLOR_BG:      // 0xE1
  case BPMEM_TEV_COLOR_BG + 2:  // 0xE3
  case BPMEM_TEV_COLOR_BG + 4:  // 0xE5
  case BPMEM_TEV_COLOR_BG + 6:  // 0xE7
    SetRegName(BPMEM_TEV_COLOR_BG);
    // TODO: Description
    break;

  case BPMEM_FOGRANGE:  // 0xE8
  case BPMEM_FOGRANGE + 1:
  case BPMEM_FOGRANGE + 2:
  case BPMEM_FOGRANGE + 3:
  case BPMEM_FOGRANGE + 4:
  case BPMEM_FOGRANGE + 5:
    SetRegName(BPMEM_FOGRANGE);
    // TODO: Description
    break;

  case BPMEM_FOGPARAM0:  // 0xEE
    SetRegName(BPMEM_FOGPARAM0);
    // TODO: Description
    break;

  case BPMEM_FOGBMAGNITUDE:  // 0xEF
    SetRegName(BPMEM_FOGBMAGNITUDE);
    // TODO: Description
    break;

  case BPMEM_FOGBEXPONENT:  // 0xF0
    SetRegName(BPMEM_FOGBEXPONENT);
    // TODO: Description
    break;

  case BPMEM_FOGPARAM3:  // 0xF1
    SetRegName(BPMEM_FOGPARAM3);
    // TODO: Description
    break;

  case BPMEM_FOGCOLOR:  // 0xF2
    SetRegName(BPMEM_FOGCOLOR);
    // TODO: Description
    break;

  case BPMEM_ALPHACOMPARE:  // 0xF3
  {
    SetRegName(BPMEM_ALPHACOMPARE);
    AlphaTest test;
    test.hex = cmddata;
    const char* functions[] = {"NEVER",   "LESS",   "EQUAL",  "LEQUAL",
                               "GREATER", "NEQUAL", "GEQUAL", "ALWAYS"};
    const char* logic[] = {"AND", "OR", "XOR", "XNOR"};
    *desc = StringFromFormat("Test 1: %s (ref: %#02x)\n"
                             "Test 2: %s (ref: %#02x)\n"
                             "Logic: %s\n",
                             functions[test.comp0], (int)test.ref0, functions[test.comp1],
                             (int)test.ref1, logic[test.logic]);
    break;
  }

  case BPMEM_BIAS:  // 0xF4
    SetRegName(BPMEM_BIAS);
    // TODO: Description
    break;

  case BPMEM_ZTEX2:  // 0xF5
    SetRegName(BPMEM_ZTEX2);
    // TODO: Description
    break;

  case BPMEM_TEV_KSEL:  // 0xF6
  case BPMEM_TEV_KSEL + 1:
  case BPMEM_TEV_KSEL + 2:
  case BPMEM_TEV_KSEL + 3:
  case BPMEM_TEV_KSEL + 4:
  case BPMEM_TEV_KSEL + 5:
  case BPMEM_TEV_KSEL + 6:
  case BPMEM_TEV_KSEL + 7:
    SetRegName(BPMEM_TEV_KSEL);
    // TODO: Description
    break;

#undef SetRegName
  }
}

// Called when loading a saved state.
void BPReload()
{
  // restore anything that goes straight to the renderer.
  // let's not risk actually replaying any writes.
  // note that PixelShaderManager is already covered since it has its own DoState.
  SetGenerationMode();
  SetScissor();
  SetDepthMode();
  SetLogicOpMode();
  SetDitherMode();
  SetBlendMode();
  SetColorMask();
  OnPixelFormatChange();
}
