forked from dolphin-emu/dolphin
98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
// Copyright 2009 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 "VideoBackends/Software/EfbCopy.h"
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#include "Common/CommonTypes.h"
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#include "Common/Logging/Log.h"
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#include "Core/HW/Memmap.h"
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#include "VideoBackends/Software/EfbInterface.h"
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#include "VideoBackends/Software/TextureEncoder.h"
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#include "VideoCommon/BPMemory.h"
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#include "VideoCommon/Fifo.h"
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static const float s_gammaLUT[] = {1.0f, 1.7f, 2.2f, 1.0f};
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namespace EfbCopy
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{
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static void CopyToXfb(u32 xfbAddr, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc,
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float Gamma)
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{
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DEBUG_LOG(VIDEO, "xfbaddr: %x, fbwidth: %i, fbheight: %i, source: (%i, %i, %i, %i), Gamma %f",
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xfbAddr, fbWidth, fbHeight, sourceRc.top, sourceRc.left, sourceRc.bottom,
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sourceRc.right, Gamma);
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EfbInterface::yuv422_packed* xfb_in_ram =
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(EfbInterface::yuv422_packed*)Memory::GetPointer(xfbAddr);
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EfbInterface::CopyToXFB(xfb_in_ram, fbWidth, fbHeight, sourceRc, Gamma);
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}
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static void CopyToRam()
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{
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u8* dest_ptr = Memory::GetPointer(bpmem.copyTexDest << 5);
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TextureEncoder::Encode(dest_ptr);
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}
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void ClearEfb()
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{
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u32 clearColor = (bpmem.clearcolorAR & 0xff) << 24 | bpmem.clearcolorGB << 8 |
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(bpmem.clearcolorAR & 0xff00) >> 8;
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int left = bpmem.copyTexSrcXY.x;
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int top = bpmem.copyTexSrcXY.y;
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int right = left + bpmem.copyTexSrcWH.x;
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int bottom = top + bpmem.copyTexSrcWH.y;
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for (u16 y = top; y <= bottom; y++)
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{
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for (u16 x = left; x <= right; x++)
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{
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EfbInterface::SetColor(x, y, (u8*)(&clearColor));
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EfbInterface::SetDepth(x, y, bpmem.clearZValue);
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}
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}
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}
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void CopyEfb()
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{
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EFBRectangle rc;
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rc.left = (int)bpmem.copyTexSrcXY.x;
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rc.top = (int)bpmem.copyTexSrcXY.y;
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// flipper represents the widths internally as last pixel minus starting pixel, so
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// these are zero indexed.
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rc.right = rc.left + (int)bpmem.copyTexSrcWH.x + 1;
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rc.bottom = rc.top + (int)bpmem.copyTexSrcWH.y + 1;
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if (bpmem.triggerEFBCopy.copy_to_xfb)
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{
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float yScale;
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if (bpmem.triggerEFBCopy.scale_invert)
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yScale = 256.0f / (float)bpmem.dispcopyyscale;
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else
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yScale = (float)bpmem.dispcopyyscale / 256.0f;
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float xfbLines = ((bpmem.copyTexSrcWH.y + 1.0f) * yScale);
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if (yScale != 1.0)
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WARN_LOG(VIDEO, "yScale of %f is currently unsupported", yScale);
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if ((u32)xfbLines > MAX_XFB_HEIGHT)
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{
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INFO_LOG(VIDEO, "Tried to scale EFB to too many XFB lines (%f)", xfbLines);
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xfbLines = MAX_XFB_HEIGHT;
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}
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CopyToXfb(bpmem.copyTexDest << 5, bpmem.copyMipMapStrideChannels << 4, (u32)xfbLines, rc,
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s_gammaLUT[bpmem.triggerEFBCopy.gamma]);
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}
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else
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{
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CopyToRam(); // FIXME: should use the rectangle we have already created above
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}
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}
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}
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