630 lines
14 KiB
C++
630 lines
14 KiB
C++
// Copyright 2013 Dolphin Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include <algorithm>
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#include "Common/Common.h"
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#include "Core/HW/Memmap.h"
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#include "VideoBackends/Software/BPMemLoader.h"
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#include "VideoBackends/Software/EfbInterface.h"
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#include "VideoCommon/LookUpTables.h"
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#include "VideoCommon/PixelEngine.h"
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u8 efb[EFB_WIDTH*EFB_HEIGHT*6];
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namespace EfbInterface
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{
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u32 perf_values[PQ_NUM_MEMBERS];
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inline u32 GetColorOffset(u16 x, u16 y)
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{
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return (x + y * EFB_WIDTH) * 3;
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}
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inline u32 GetDepthOffset(u16 x, u16 y)
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{
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return (x + y * EFB_WIDTH) * 3 + DEPTH_BUFFER_START;
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}
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void DoState(PointerWrap &p)
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{
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p.DoArray(efb, EFB_WIDTH*EFB_HEIGHT*6);
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}
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void SetPixelAlphaOnly(u32 offset, u8 a)
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{
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switch (bpmem.zcontrol.pixel_format)
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{
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case PEControl::RGB8_Z24:
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case PEControl::Z24:
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case PEControl::RGB565_Z16:
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// do nothing
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break;
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case PEControl::RGBA6_Z24:
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{
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u32 a32 = a;
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u32 *dst = (u32*)&efb[offset];
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u32 val = *dst & 0xffffffc0;
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val |= (a32 >> 2) & 0x0000003f;
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*dst = val;
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}
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break;
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default:
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ERROR_LOG(VIDEO, "Unsupported pixel format: %i", static_cast<int>(bpmem.zcontrol.pixel_format));
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}
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}
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void SetPixelColorOnly(u32 offset, u8 *rgb)
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{
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switch (bpmem.zcontrol.pixel_format)
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{
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case PEControl::RGB8_Z24:
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case PEControl::Z24:
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{
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u32 src = *(u32*)rgb;
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u32 *dst = (u32*)&efb[offset];
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u32 val = *dst & 0xff000000;
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val |= src >> 8;
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*dst = val;
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}
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break;
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case PEControl::RGBA6_Z24:
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{
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u32 src = *(u32*)rgb;
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u32 *dst = (u32*)&efb[offset];
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u32 val = *dst & 0xff00003f;
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val |= (src >> 4) & 0x00000fc0; // blue
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val |= (src >> 6) & 0x0003f000; // green
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val |= (src >> 8) & 0x00fc0000; // red
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*dst = val;
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}
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break;
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case PEControl::RGB565_Z16:
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{
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INFO_LOG(VIDEO, "RGB565_Z16 is not supported correctly yet");
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u32 src = *(u32*)rgb;
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u32 *dst = (u32*)&efb[offset];
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u32 val = *dst & 0xff000000;
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val |= src >> 8;
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*dst = val;
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}
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break;
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default:
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ERROR_LOG(VIDEO, "Unsupported pixel format: %i", static_cast<int>(bpmem.zcontrol.pixel_format));
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}
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}
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void SetPixelAlphaColor(u32 offset, u8 *color)
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{
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switch (bpmem.zcontrol.pixel_format)
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{
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case PEControl::RGB8_Z24:
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case PEControl::Z24:
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{
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u32 src = *(u32*)color;
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u32 *dst = (u32*)&efb[offset];
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u32 val = *dst & 0xff000000;
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val |= src >> 8;
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*dst = val;
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}
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break;
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case PEControl::RGBA6_Z24:
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{
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u32 src = *(u32*)color;
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u32 *dst = (u32*)&efb[offset];
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u32 val = *dst & 0xff000000;
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val |= (src >> 2) & 0x0000003f; // alpha
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val |= (src >> 4) & 0x00000fc0; // blue
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val |= (src >> 6) & 0x0003f000; // green
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val |= (src >> 8) & 0x00fc0000; // red
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*dst = val;
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}
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break;
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case PEControl::RGB565_Z16:
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{
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INFO_LOG(VIDEO, "RGB565_Z16 is not supported correctly yet");
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u32 src = *(u32*)color;
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u32 *dst = (u32*)&efb[offset];
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u32 val = *dst & 0xff000000;
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val |= src >> 8;
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*dst = val;
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}
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break;
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default:
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ERROR_LOG(VIDEO, "Unsupported pixel format: %i", static_cast<int>(bpmem.zcontrol.pixel_format));
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}
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}
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void GetPixelColor(u32 offset, u8 *color)
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{
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switch (bpmem.zcontrol.pixel_format)
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{
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case PEControl::RGB8_Z24:
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case PEControl::Z24:
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{
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u32 src = *(u32*)&efb[offset];
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u32 *dst = (u32*)color;
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u32 val = 0xff | ((src & 0x00ffffff) << 8);
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*dst = val;
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}
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break;
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case PEControl::RGBA6_Z24:
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{
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u32 src = *(u32*)&efb[offset];
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color[ALP_C] = Convert6To8(src & 0x3f);
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color[BLU_C] = Convert6To8((src >> 6) & 0x3f);
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color[GRN_C] = Convert6To8((src >> 12) & 0x3f);
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color[RED_C] = Convert6To8((src >> 18) & 0x3f);
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}
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break;
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case PEControl::RGB565_Z16:
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{
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INFO_LOG(VIDEO, "RGB565_Z16 is not supported correctly yet");
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u32 src = *(u32*)&efb[offset];
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u32 *dst = (u32*)color;
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u32 val = 0xff | ((src & 0x00ffffff) << 8);
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*dst = val;
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}
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break;
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default:
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ERROR_LOG(VIDEO, "Unsupported pixel format: %i", static_cast<int>(bpmem.zcontrol.pixel_format));
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}
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}
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void SetPixelDepth(u32 offset, u32 depth)
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{
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switch (bpmem.zcontrol.pixel_format)
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{
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case PEControl::RGB8_Z24:
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case PEControl::RGBA6_Z24:
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case PEControl::Z24:
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{
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u32 *dst = (u32*)&efb[offset];
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u32 val = *dst & 0xff000000;
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val |= depth & 0x00ffffff;
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*dst = val;
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}
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break;
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case PEControl::RGB565_Z16:
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{
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INFO_LOG(VIDEO, "RGB565_Z16 is not supported correctly yet");
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u32 *dst = (u32*)&efb[offset];
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u32 val = *dst & 0xff000000;
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val |= depth & 0x00ffffff;
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*dst = val;
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}
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break;
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default:
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ERROR_LOG(VIDEO, "Unsupported pixel format: %i", static_cast<int>(bpmem.zcontrol.pixel_format));
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}
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}
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u32 GetPixelDepth(u32 offset)
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{
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u32 depth = 0;
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switch (bpmem.zcontrol.pixel_format)
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{
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case PEControl::RGB8_Z24:
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case PEControl::RGBA6_Z24:
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case PEControl::Z24:
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{
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depth = (*(u32*)&efb[offset]) & 0x00ffffff;
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}
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break;
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case PEControl::RGB565_Z16:
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{
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INFO_LOG(VIDEO, "RGB565_Z16 is not supported correctly yet");
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depth = (*(u32*)&efb[offset]) & 0x00ffffff;
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}
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break;
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default:
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ERROR_LOG(VIDEO, "Unsupported pixel format: %i", static_cast<int>(bpmem.zcontrol.pixel_format));
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}
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return depth;
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}
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u32 GetSourceFactor(u8 *srcClr, u8 *dstClr, BlendMode::BlendFactor mode)
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{
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switch (mode)
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{
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case BlendMode::ZERO:
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return 0;
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case BlendMode::ONE:
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return 0xffffffff;
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case BlendMode::DSTCLR:
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return *(u32*)dstClr;
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case BlendMode::INVDSTCLR:
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return 0xffffffff - *(u32*)dstClr;
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case BlendMode::SRCALPHA:
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{
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u8 alpha = srcClr[ALP_C];
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u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
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return factor;
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}
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case BlendMode::INVSRCALPHA:
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{
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u8 alpha = 0xff - srcClr[ALP_C];
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u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
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return factor;
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}
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case BlendMode::DSTALPHA:
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{
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u8 alpha = dstClr[ALP_C];
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u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
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return factor;
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}
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case BlendMode::INVDSTALPHA:
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{
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u8 alpha = 0xff - dstClr[ALP_C];
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u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
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return factor;
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}
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}
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return 0;
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}
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u32 GetDestinationFactor(u8 *srcClr, u8 *dstClr, BlendMode::BlendFactor mode)
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{
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switch (mode)
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{
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case BlendMode::ZERO:
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return 0;
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case BlendMode::ONE:
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return 0xffffffff;
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case BlendMode::SRCCLR:
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return *(u32*)srcClr;
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case BlendMode::INVSRCCLR:
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return 0xffffffff - *(u32*)srcClr;
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case BlendMode::SRCALPHA:
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{
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u8 alpha = srcClr[ALP_C];
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u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
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return factor;
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}
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case BlendMode::INVSRCALPHA:
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{
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u8 alpha = 0xff - srcClr[ALP_C];
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u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
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return factor;
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}
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case BlendMode::DSTALPHA:
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{
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u8 alpha = dstClr[ALP_C] & 0xff;
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u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
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return factor;
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}
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case BlendMode::INVDSTALPHA:
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{
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u8 alpha = 0xff - dstClr[ALP_C];
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u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
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return factor;
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}
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}
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return 0;
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}
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void BlendColor(u8 *srcClr, u8 *dstClr)
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{
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u32 srcFactor = GetSourceFactor(srcClr, dstClr, bpmem.blendmode.srcfactor);
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u32 dstFactor = GetDestinationFactor(srcClr, dstClr, bpmem.blendmode.dstfactor);
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for (int i = 0; i < 4; i++)
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{
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// add MSB of factors to make their range 0 -> 256
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u32 sf = (srcFactor & 0xff);
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sf += sf >> 7;
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u32 df = (dstFactor & 0xff);
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df += df >> 7;
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u32 color = (srcClr[i] * sf + dstClr[i] * df) >> 8;
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dstClr[i] = (color>255)?255:color;
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dstFactor >>= 8;
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srcFactor >>= 8;
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}
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}
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void LogicBlend(u32 srcClr, u32 &dstClr, BlendMode::LogicOp op)
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{
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switch (op)
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{
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case BlendMode::CLEAR:
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dstClr = 0;
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break;
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case BlendMode::AND:
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dstClr = srcClr & dstClr;
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break;
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case BlendMode::AND_REVERSE:
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dstClr = srcClr & (~dstClr);
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break;
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case BlendMode::COPY:
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dstClr = srcClr;
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break;
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case BlendMode::AND_INVERTED:
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dstClr = (~srcClr) & dstClr;
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break;
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case BlendMode::NOOP:
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// Do nothing
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break;
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case BlendMode::XOR:
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dstClr = srcClr ^ dstClr;
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break;
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case BlendMode::OR:
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dstClr = srcClr | dstClr;
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break;
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case BlendMode::NOR:
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dstClr = ~(srcClr | dstClr);
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break;
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case BlendMode::EQUIV:
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dstClr = ~(srcClr ^ dstClr);
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break;
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case BlendMode::INVERT:
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dstClr = ~dstClr;
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break;
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case BlendMode::OR_REVERSE:
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dstClr = srcClr | (~dstClr);
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break;
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case BlendMode::COPY_INVERTED:
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dstClr = ~srcClr;
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break;
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case BlendMode::OR_INVERTED:
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dstClr = (~srcClr) | dstClr;
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break;
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case BlendMode::NAND:
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dstClr = ~(srcClr & dstClr);
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break;
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case BlendMode::SET:
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dstClr = 0xffffffff;
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break;
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}
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}
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void SubtractBlend(u8 *srcClr, u8 *dstClr)
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{
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for (int i = 0; i < 4; i++)
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{
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int c = (int)dstClr[i] - (int)srcClr[i];
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dstClr[i] = (c < 0)?0:c;
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}
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}
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void BlendTev(u16 x, u16 y, u8 *color)
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{
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u32 dstClr;
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u32 offset = GetColorOffset(x, y);
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u8 *dstClrPtr = (u8*)&dstClr;
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GetPixelColor(offset, dstClrPtr);
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if (bpmem.blendmode.blendenable)
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{
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if (bpmem.blendmode.subtract)
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SubtractBlend(color, dstClrPtr);
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else
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BlendColor(color, dstClrPtr);
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}
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else if (bpmem.blendmode.logicopenable)
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{
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LogicBlend(*((u32*)color), dstClr, bpmem.blendmode.logicmode);
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}
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else
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{
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dstClrPtr = color;
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}
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if (bpmem.dstalpha.enable)
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dstClrPtr[ALP_C] = bpmem.dstalpha.alpha;
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if (bpmem.blendmode.colorupdate)
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{
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if (bpmem.blendmode.alphaupdate)
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SetPixelAlphaColor(offset, dstClrPtr);
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else
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SetPixelColorOnly(offset, dstClrPtr);
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}
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else if (bpmem.blendmode.alphaupdate)
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{
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SetPixelAlphaOnly(offset, dstClrPtr[ALP_C]);
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}
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// branchless bounding box update
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PixelEngine::bbox[0] = std::min(x, PixelEngine::bbox[0]);
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PixelEngine::bbox[1] = std::max(x, PixelEngine::bbox[1]);
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PixelEngine::bbox[2] = std::min(y, PixelEngine::bbox[2]);
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PixelEngine::bbox[3] = std::max(y, PixelEngine::bbox[3]);
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}
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void SetColor(u16 x, u16 y, u8 *color)
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{
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u32 offset = GetColorOffset(x, y);
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if (bpmem.blendmode.colorupdate)
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{
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if (bpmem.blendmode.alphaupdate)
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SetPixelAlphaColor(offset, color);
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else
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SetPixelColorOnly(offset, color);
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}
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else if (bpmem.blendmode.alphaupdate)
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{
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SetPixelAlphaOnly(offset, color[ALP_C]);
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}
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}
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void SetDepth(u16 x, u16 y, u32 depth)
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{
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if (bpmem.zmode.updateenable)
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SetPixelDepth(GetDepthOffset(x, y), depth);
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}
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void GetColor(u16 x, u16 y, u8 *color)
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{
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u32 offset = GetColorOffset(x, y);
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GetPixelColor(offset, color);
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}
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// For internal used only, return a non-normalized value, which saves work later.
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void GetColorYUV(u16 x, u16 y, yuv444 *out)
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{
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u8 color[4];
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GetColor(x, y, color);
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// GameCube/Wii uses the BT.601 standard algorithm for converting to YCbCr; see
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// http://www.equasys.de/colorconversion.html#YCbCr-RGBColorFormatConversion
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out->Y = (u8)( 0.257f * color[RED_C] + 0.504f * color[GRN_C] + 0.098f * color[BLU_C]);
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out->U = (u8)(-0.148f * color[RED_C] + -0.291f * color[GRN_C] + 0.439f * color[BLU_C]);
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out->V = (u8)( 0.439f * color[RED_C] + -0.368f * color[GRN_C] + -0.071f * color[BLU_C]);
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}
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u32 GetDepth(u16 x, u16 y)
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{
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u32 offset = GetDepthOffset(x, y);
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return GetPixelDepth(offset);
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}
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u8 *GetPixelPointer(u16 x, u16 y, bool depth)
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{
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if (depth)
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return &efb[GetDepthOffset(x, y)];
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return &efb[GetColorOffset(x, y)];
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}
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void CopyToXFB(yuv422_packed* xfb_in_ram, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc, float Gamma) {
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// FIXME: We should do Gamma correction
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if (!xfb_in_ram)
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{
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WARN_LOG(VIDEO, "Tried to copy to invalid XFB address");
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return;
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}
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int left = sourceRc.left;
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int right = sourceRc.right;
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// this assumes copies will always start on an even (YU) pixel and the
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// copy always has an even width, which might not be true.
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if (left & 1 || right & 1) {
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WARN_LOG(VIDEO, "Trying to copy XFB to from unaligned EFB source");
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// this will show up as wrongly encoded
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}
|
|
|
|
// Scanline buffer, leave room for borders
|
|
yuv444 scanline[EFB_WIDTH+2];
|
|
|
|
// our internal yuv444 type is not normalized, so black is {0, 0, 0} instead of {16, 128, 128}
|
|
yuv444 black;
|
|
black.Y = 0;
|
|
black.U = 0;
|
|
black.V = 0;
|
|
|
|
scanline[0] = black; // black border at start
|
|
scanline[right+1] = black; // black border at end
|
|
|
|
for (u16 y = sourceRc.top; y < sourceRc.bottom; y++)
|
|
{
|
|
// Get a scanline of YUV pixels in 4:4:4 format
|
|
|
|
for (int i = 1, x = left; x < right; i++, x++)
|
|
{
|
|
GetColorYUV(x, y, &scanline[i]);
|
|
}
|
|
|
|
// And Downsample them to 4:2:2
|
|
for (int i = 1, x = left; x < right; i+=2, x+=2)
|
|
{
|
|
// YU pixel
|
|
xfb_in_ram[x].Y = scanline[i].Y + 16;
|
|
// we mix our color difrences in 10 bit space so it will round more accurately
|
|
// U[i] = 1/4 * U[i-1] + 1/2 * U[i] + 1/4 * U[i+1]
|
|
xfb_in_ram[x].UV = 128 + ((scanline[i-1].U + (scanline[i].U << 1) + scanline[i+1].U) >> 2);
|
|
|
|
// YV pixel
|
|
xfb_in_ram[x+1].Y = scanline[i+1].Y + 16;
|
|
// V[i] = 1/4 * V[i-1] + 1/2 * V[i] + 1/4 * V[i+1]
|
|
xfb_in_ram[x+1].UV = 128 + ((scanline[i].V + (scanline[i+1].V << 1) + scanline[i+2].V) >> 2);
|
|
}
|
|
xfb_in_ram += fbWidth;
|
|
}
|
|
}
|
|
|
|
// Like CopyToXFB, but we copy directly into the opengl colour texture without going via GameCube main memory or doing a yuyv conversion
|
|
void BypassXFB(u8* texture, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc, float Gamma) {
|
|
if (fbWidth*fbHeight > 640*568) {
|
|
ERROR_LOG(VIDEO, "Framebuffer is too large: %ix%i", fbWidth, fbHeight);
|
|
return;
|
|
}
|
|
|
|
u32 color;
|
|
u8* colorPtr = (u8*)&color;
|
|
u32* texturePtr = (u32*)texture;
|
|
u32 textureAddress = 0;
|
|
|
|
int left = sourceRc.left;
|
|
int right = sourceRc.right;
|
|
|
|
for (u16 y = sourceRc.top; y < sourceRc.bottom; y++)
|
|
{
|
|
for (u16 x = left; x < right; x++)
|
|
{
|
|
GetColor(x, y, colorPtr);
|
|
texturePtr[textureAddress++] = Common::swap32(color);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool ZCompare(u16 x, u16 y, u32 z)
|
|
{
|
|
u32 offset = GetDepthOffset(x, y);
|
|
u32 depth = GetPixelDepth(offset);
|
|
|
|
bool pass;
|
|
|
|
switch (bpmem.zmode.func)
|
|
{
|
|
case ZMode::NEVER:
|
|
pass = false;
|
|
break;
|
|
case ZMode::LESS:
|
|
pass = z < depth;
|
|
break;
|
|
case ZMode::EQUAL:
|
|
pass = z == depth;
|
|
break;
|
|
case ZMode::LEQUAL:
|
|
pass = z <= depth;
|
|
break;
|
|
case ZMode::GREATER:
|
|
pass = z > depth;
|
|
break;
|
|
case ZMode::NEQUAL:
|
|
pass = z != depth;
|
|
break;
|
|
case ZMode::GEQUAL:
|
|
pass = z >= depth;
|
|
break;
|
|
case ZMode::ALWAYS:
|
|
pass = true;
|
|
break;
|
|
default:
|
|
pass = false;
|
|
ERROR_LOG(VIDEO, "Bad Z compare mode %i", (int)bpmem.zmode.func);
|
|
}
|
|
|
|
if (pass && bpmem.zmode.updateenable)
|
|
{
|
|
SetPixelDepth(offset, z);
|
|
}
|
|
|
|
return pass;
|
|
}
|
|
}
|