Put Plugins/ in Core/, rename to VideoBackends

1 files changed, 88 insertions, 0 deletions

diff --git a/Source/Core/VideoBackends/Software/Src/XFMemLoader.cpp b/Source/Core/VideoBackends/Software/Src/XFMemLoader.cpp
new file mode 100644
index 0000000000..4580bafad8
--- /dev/null
+++ b/Source/Core/VideoBackends/Software/Src/XFMemLoader.cpp
@@ -0,0 +1,88 @@
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#include "VideoCommon.h"
+
+#include "XFMemLoader.h"
+#include "CPMemLoader.h"
+#include "Clipper.h"
+#include "HW/Memmap.h"
+
+XFRegisters swxfregs;
+
+void InitXFMemory()
+{
+	memset(&swxfregs, 0, sizeof(swxfregs));
+}
+
+void XFWritten(u32 transferSize, u32 baseAddress)
+{
+	u32 topAddress = baseAddress + transferSize;
+
+	if (baseAddress <= 0x1026 && topAddress >= 0x1020)
+		Clipper::SetViewOffset();
+
+	// fix lights so invalid values don't trash the lighting computations	
+	if (baseAddress <= 0x067f && topAddress >= 0x0604)
+	{
+		u32* x = swxfregs.lights;
+
+		// go through all lights
+		for (int light = 0; light < 8; light++)
+		{
+			// skip to floating point values
+			x += 4;
+
+			for (int i = 0; i < 12; i++)
+			{
+				u32 xVal = *x;
+
+				// if the exponent is 255 then the number is inf or nan
+				if ((xVal & 0x7f800000) == 0x7f800000)
+					*x = 0;
+
+				x++;
+			}
+		}
+	}
+}
+
+void SWLoadXFReg(u32 transferSize, u32 baseAddress, u32 *pData)
+{
+	u32 size = transferSize;
+
+	// do not allow writes past registers
+	if (baseAddress + transferSize > 0x1058)
+	{
+		INFO_LOG(VIDEO, "xf load exceeds address space: %x %d bytes\n", baseAddress, transferSize);
+
+		if (baseAddress >= 0x1058)
+			size = 0;
+		else
+			size = 0x1058 - baseAddress;
+	}
+
+	if (size > 0)
+	{
+		memcpy_gc( &((u32*)&swxfregs)[baseAddress], pData, size * 4);
+		XFWritten(transferSize, baseAddress);
+	}
+}
+
+void SWLoadIndexedXF(u32 val, int array)
+{
+	int index = val >> 16;
+	int address = val & 0xFFF; //check mask
+	int size = ((val >> 12) & 0xF) + 1;
+	//load stuff from array to address in xf mem
+
+	u32 *pData = (u32*)Memory::GetPointer(arraybases[array] + arraystrides[array]*index);
+
+	// byteswap data
+	u32 buffer[16];
+	for (int i = 0; i < size; ++i)
+		buffer[i] = Common::swap32(*(pData + i));
+
+	SWLoadXFReg(size, address, buffer);
+}