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https://github.com/dolphin-emu/dolphin.git
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8b2c540544
This adds xfb support to the videosoftware backend, which increases it's accuracy and more imporantly, enables the usage of many homebrew apps which write directly to the xfb on the videosoftware backend. Conflicts: Source/Core/VideoBackends/Software/SWRenderer.cpp Source/Core/VideoBackends/Software/SWmain.cpp
134 lines
3.4 KiB
C++
134 lines
3.4 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 "BPMemLoader.h"
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#include "EfbCopy.h"
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#include "EfbInterface.h"
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#include "SWRenderer.h"
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#include "TextureEncoder.h"
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#include "SWStatistics.h"
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#include "SWVideoConfig.h"
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#include "DebugUtil.h"
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#include "HwRasterizer.h"
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#include "SWCommandProcessor.h"
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#include "HW/Memmap.h"
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#include "Core.h"
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static const float s_gammaLUT[] =
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{
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1.0f,
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1.7f,
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2.2f,
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1.0f
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};
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namespace EfbCopy
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{
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void CopyToXfb(u32 xfbAddr, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc, float Gamma)
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{
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GLInterface->Update(); // just updates the render window position and the backbuffer size
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if (!g_SWVideoConfig.bHwRasterizer)
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{
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INFO_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, sourceRc.right, Gamma);
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if(!g_SWVideoConfig.bBypassXFB) {
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EfbInterface::yuv422_packed* xfb_in_ram = (EfbInterface::yuv422_packed *) Memory::GetPointer(xfbAddr);
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EfbInterface::CopyToXFB(xfb_in_ram, fbWidth, fbHeight, sourceRc, Gamma);
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} else {
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u8 *colorTexture = SWRenderer::getColorTexture(); // Ask SWRenderer for the next color texture
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EfbInterface::BypassXFB(colorTexture, fbWidth, fbHeight, sourceRc, Gamma);
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SWRenderer::swapColorTexture(); // Tell SWRenderer we are now finished with it.
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}
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}
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}
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void CopyToRam()
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{
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if (!g_SWVideoConfig.bHwRasterizer)
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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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}
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void ClearEfb()
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{
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u32 clearColor = (bpmem.clearcolorAR & 0xff) << 24 | bpmem.clearcolorGB << 8 | (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 (!g_bSkipCurrentFrame)
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{
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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,
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bpmem.copyMipMapStrideChannels << 4,
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(u32)xfbLines,
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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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if (bpmem.triggerEFBCopy.clear)
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{
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if (g_SWVideoConfig.bHwRasterizer)
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HwRasterizer::Clear();
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else
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ClearEfb();
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}
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}
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}
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}
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