Initial commit

Torque/SDK/engine/interior/itfdump_c.cc

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+//-----------------------------------------------------------------------------
+// Torque Game Engine 
+// Copyright (C) GarageGames.com, Inc.
+//-----------------------------------------------------------------------------
+
+#include "interior/itf.h"
+
+//two55	   dd 0x437F0000
+//alpha	   dd 0
+
+//============================================================
+void FN_CDECL processTriFan(OutputPoint*          dst,
+                   const ItrPaddedPoint* srcPoints,
+                   const U32*            srcIndices,
+                   const U32             numIndices)
+{
+	U32 i, j;
+	F32 x,y,z;
+	for (i=0; i<numIndices; i++)
+	{
+		j = srcIndices[i];
+		x = srcPoints[j].point.x;
+		y = srcPoints[j].point.y;
+		z = srcPoints[j].point.z;
+
+		dst->point.x = x;
+		dst->point.y = y;
+		dst->point.z = z;
+		dst->fogCoord = srcPoints[j].fogCoord;
+		
+		dst->texCoord.x = (texGen0[0]*x)
+								+ (texGen0[1]*y)
+								+ (texGen0[2]*z)
+								+ (texGen0[3]);
+
+		dst->texCoord.y = (texGen0[4]*x)
+								+ (texGen0[5]*y)
+								+ (texGen0[6]*z)
+								+ (texGen0[7]);
+
+		dst->lmCoord.x = (texGen1[0]*x)
+								+ (texGen1[1]*y)
+								+ (texGen1[2]*z)
+								+ (texGen1[3]);
+
+		dst->lmCoord.y = (texGen1[4]*x)
+								+ (texGen1[5]*y)
+								+ (texGen1[6]*z)
+								+ (texGen1[7]);
+
+// move to next ptr.
+		dst++;
+	}
+}
+
+
+//============================================================
+void FN_CDECL processTriFanSP(OutputPoint*          dst,
+                     const ItrPaddedPoint* srcPoints,
+                     const U32*            srcIndices,
+                     const U32             numIndices,
+                     const ColorI*         srcColors)
+{
+	U32 i, j;
+	float x,y,z;
+	for (i=0; i<numIndices; i++)
+	{
+		j = srcIndices[i];
+		x = srcPoints[j].point.x;
+		y = srcPoints[j].point.y;
+		z = srcPoints[j].point.z;
+
+		dst->point.x = x;
+		dst->point.y = y;
+		dst->point.z = z;
+		dst->fogColors = srcColors[j].getARGBEndian();
+
+		dst->texCoord.x = (texGen0[0]*x)
+								+ (texGen0[1]*y)
+								+ (texGen0[2]*z)
+								+ (texGen0[3]);
+
+		dst->texCoord.y = (texGen0[4]*x)
+								+ (texGen0[5]*y)
+								+ (texGen0[6]*z)
+								+ (texGen0[7]);
+// move to next ptr.
+		dst++;
+	}
+}
+
+
+//============================================================
+void FN_CDECL processTriFanVC_TF(OutputPoint*          dst,
+                        const ItrPaddedPoint* srcPoints,
+                        const U32*            srcIndices,
+                        const U32             numIndices,
+                        const ColorI*         srcColors)
+{
+	U32 i, j;
+	float x,y,z;
+	for (i=0; i<numIndices; i++)
+	{
+		j = srcIndices[i];
+		x = srcPoints[j].point.x;
+		y = srcPoints[j].point.y;
+		z = srcPoints[j].point.z;
+
+		dst->point.x = x;
+		dst->point.y = y;
+		dst->point.z = z;
+		dst->fogColors = srcColors[j].getARGBEndian();
+
+		// dc - I >think< I got this right...
+		dst->texCoord.x = fogCoordinatePointer[j].x;
+		dst->texCoord.y = fogCoordinatePointer[j].y;
+
+		dst->lmCoord.x = (texGen0[0]*x)
+							+ (texGen0[1]*y)
+							+ (texGen0[2]*z)
+							+ (texGen0[3]);
+
+		dst->lmCoord.y = (texGen0[4]*x)
+							+ (texGen0[5]*y)
+							+ (texGen0[6]*z)
+							+ (texGen0[7]);
+// move to next ptr.
+		dst++;
+	}
+}
+
+
+//============================================================
+void FN_CDECL processTriFanSP_FC(OutputPoint*          dst,
+                        const ItrPaddedPoint* srcPoints,
+                        const U32*            srcIndices,
+                        const U32             numIndices,
+                        const ColorI*         srcColors)
+{
+	U32 i, j;
+	float x,y,z;
+	for (i=0; i<numIndices; i++)
+	{
+		j = srcIndices[i];
+		x = srcPoints[j].point.x;
+		y = srcPoints[j].point.y;
+		z = srcPoints[j].point.z;
+
+		dst->point.x = x;
+		dst->point.y = y;
+		dst->point.z = z;
+		dst->fogColors = srcColors[j].getARGBEndian();
+		dst->lmCoord.x = srcPoints[j].fogCoord;
+
+		dst->texCoord.x = (texGen0[0]*x)
+								+ (texGen0[1]*y)
+								+ (texGen0[2]*z)
+								+ (texGen0[3]);
+
+		dst->texCoord.y = (texGen0[4]*x)
+								+ (texGen0[5]*y)
+								+ (texGen0[6]*z)
+								+ (texGen0[7]);
+// move to next ptr.
+		dst++;
+	}
+}
+
+
+//============================================================
+// helpers:
+const float two55 = (F32)0x473F0000; // !!!!!!TBD -- not sure this is right...
+
+#define ALPHA_CALC(a, c)											\
+		a = c * two55;													\
+		a = 255 - a; /* flip direction of value. */			\
+		if (a < 0) a = 0;
+
+/* ASM for previous calculation:
+   fld		dword [esi + 12]
+	fld		dword [two55]
+	fmulp		st1, st0
+	fistp		dword [alpha]
+	mov		eax, 255
+	sub		eax, [alpha]
+	cmp		eax, 0
+	jge		near procPointLp1a_fc_vb
+	mov		eax, 0
+procPointLp1a_fc_vb:
+	shl		eax, 24 // left this in the function instead of the macro.
+    mov     [edi + 16], eax             ; <- f
+*/
+
+
+//============================================================
+void FN_CDECL processTriFanFC_VB(OutputPointFC_VB*			dst,
+                        const ItrPaddedPoint*	srcPoints,
+                        const U32*					srcIndices,
+                        const U32					numIndices)
+{
+	S32 alpha;
+	U32 i, j;
+	float x,y,z;
+	for (i=0; i<numIndices; i++)
+	{
+		j = srcIndices[i];
+		x = srcPoints[j].point.x;
+		y = srcPoints[j].point.y;
+		z = srcPoints[j].point.z;
+
+		dst->point.x = x;
+		dst->point.y = y;
+		dst->point.z = z;
+		dst->currentColors = 0xFFFFFFFF;
+
+		ALPHA_CALC(alpha, srcPoints[j].fogCoord);
+		dst->fogColors = ((U32)alpha)<<24; // move into alpha position.
+
+		// dc - note the texGens are used in reverse order.  that's what the ASM did...
+		dst->texCoord.x = (texGen1[0]*x)
+								+ (texGen1[1]*y)
+								+ (texGen1[2]*z)
+								+ (texGen1[3]);
+
+		dst->texCoord.y = (texGen1[4]*x)
+								+ (texGen1[5]*y)
+								+ (texGen1[6]*z)
+								+ (texGen1[7]);
+
+		dst->lmCoord.x = (texGen0[0]*x)
+								+ (texGen0[1]*y)
+								+ (texGen0[2]*z)
+								+ (texGen0[3]);
+
+		dst->lmCoord.y = (texGen0[4]*x)
+								+ (texGen0[5]*y)
+								+ (texGen0[6]*z)
+								+ (texGen0[7]);
+
+// move to next ptr.
+		dst++;
+	}
+}
+
+
+//!!!!!!TBD -- is there a rotate intrinsic?????
+#define ROL16(x)		(x) = ((((x)<<16)&0xFFFF0000) | (((x)>>16)&0x0000FFFF))
+
+//============================================================
+void FN_CDECL processTriFanSP_FC_VB(OutputPointSP_FC_VB*		dst,
+                           const ItrPaddedPoint*	srcPoints,
+                           const U32*					srcIndices,
+                           const U32					numIndices,
+                           const ColorI*				srcColors)
+{
+	S32 alpha;
+	U32 i, j, tmp, tmp2;
+	float x,y,z;
+	for (i=0; i<numIndices; i++)
+	{
+		j = srcIndices[i];
+		x = srcPoints[j].point.x;
+		y = srcPoints[j].point.y;
+		z = srcPoints[j].point.z;
+
+		dst->point.x = x;
+		dst->point.y = y;
+		dst->point.z = z;
+
+/*
+   mov      edx, [srcColors]            ; color
+   lea      edx, [edx + ebp*4]          ; color
+   mov      edx, [edx]                  ; color
+	mov		eax, edx
+	mov		ebx, 0x00FF00FF
+	and		edx, ebx
+	not		ebx
+	and		eax, ebx
+	rol		edx, 16
+	or			edx, eax
+	mov     [edi + 12], edx             ; color
+*/
+
+		tmp = srcColors[j].getARGBEndian();
+		tmp2 = tmp;
+		
+		tmp = (tmp & 0x00FF00FF);
+		tmp2 = (tmp2 & 0xFF00FF00);
+		
+		ROL16(tmp);
+		
+		dst->lmColors = (tmp | tmp2);
+
+		ALPHA_CALC(alpha, srcPoints[j].fogCoord);
+		dst->fogColors = ((U32)alpha)<<24; // move into alpha position.
+
+		dst->texCoord.x = (texGen0[0]*x)
+								+ (texGen0[1]*y)
+								+ (texGen0[2]*z)
+								+ (texGen0[3]);
+
+		dst->texCoord.y = (texGen0[4]*x)
+								+ (texGen0[5]*y)
+								+ (texGen0[6]*z)
+								+ (texGen0[7]);
+// move to next ptr.
+		dst++;
+	}
+}
+