--- ray/src/rt/RpictSimulManager.h	2024/08/21 23:52:24	2.6
+++ ray/src/rt/RpictSimulManager.h	2024/10/23 23:40:41	2.11
@@ -1,4 +1,4 @@
-/* RCSid $Id: RpictSimulManager.h,v 2.6 2024/08/21 23:52:24 greg Exp $ */
+/* RCSid $Id: RpictSimulManager.h,v 2.11 2024/10/23 23:40:41 greg Exp $ */
 /*
  *  RpictSimulManager.h
  *
@@ -13,7 +13,6 @@
 #include "RtraceSimulManager.h"
 #include "view.h"
 #include "depthcodec.h"
-#include "abitmap.h"
 
 /// Data type flags for pixel access and output
 enum RenderDataType {
@@ -43,6 +42,7 @@ class PixelAccess {
 	long		rowStride;	// # values to next y position
 	int		dtyp;		// data type flags
 	RGBPRIMP	primp;		// color primaries if tristimulus
+	bool		swap2d;		// need to swap 16-bit depths?
 	const COLORV *	CF3(int x, int y) const {
 				return pbase.f + (rowStride*y + x)*3;
 			}
@@ -67,26 +67,41 @@ class PixelAccess {
 	COLRV *		SCB(int x, int y) {
 				return pbase.b + (rowStride*y + x)*(NCSAMP+1);
 			}
+	void		EncodeDepth16(int x, int y, float z) {
+				short *	sp = dbase.s + rowStride*y + x;
+				*sp = depth2code(z, refDepth);
+				if (swap2d) swap16((char *)sp, 1);
+			}
+	float		DecodeDepth16(int x, int y) const {
+				short	sv = dbase.s[rowStride*y + x];
+				if (swap2d) swap16((char *)&sv, 1);
+				return code2depth(sv, refDepth);
+			}
 public:
 	double		refDepth;	// reference depth
 			PixelAccess() {
 				refDepth = 1.;
+				swap2d = !nativebigendian();
 				Init();
 			}
 			PixelAccess(COLORV *rp, int ystride, float *zp=NULL) {
 				refDepth = 1.;
+				swap2d = !nativebigendian();
 				Init(rp, ystride, zp);
 			}
 			PixelAccess(COLRV *bp, int ystride, float *zp=NULL) {
 				refDepth = 1.;
+				swap2d = !nativebigendian();
 				Init(bp, ystride, zp);
 			}
 			PixelAccess(COLRV *bp, int ystride, short *dp) {
 				refDepth = 1.;
+				swap2d = !nativebigendian();
 				Init(bp, ystride, dp);
 			}
 			PixelAccess(COLORV *rp, int ystride, short *dp) {
 				refDepth = 1.;
+				swap2d = !nativebigendian();
 				Init(rp, ystride, dp);
 			}
 	void		Init() {
@@ -179,10 +194,10 @@ class PixelAccess {
 					scolor_scolr(SCB(x,y), pv);
 				else
 					copyscolor(SCF(x,y), pv);
-				if (RDTdepthT(dtyp) == RDTdfloat)
+				if (DepthType() == RDTdfloat)
 					dbase.f[rowStride*y + x] = z;
-				else if (RDTdepthT(dtyp) == RDTdshort)
-					dbase.s[rowStride*y + x] = depth2code(z, refDepth);
+				else if (DepthType() == RDTdshort)
+					EncodeDepth16(x, y, z);
 				return true;
 			}
 			/// Retrieve pixel color (& depth) -- may convert either/both
@@ -197,10 +212,10 @@ class PixelAccess {
 				else
 					copyscolor(pv, SCF(x,y));
 				if (!zp) return true;
-				if (RDTdepthT(dtyp) == RDTdfloat)
+				if (DepthType() == RDTdfloat)
 					*zp = dbase.f[rowStride*y + x];
-				else if (RDTdepthT(dtyp) == RDTdshort)
-					*zp = code2depth(dbase.s[rowStride*y + x], refDepth);
+				else if (DepthType() == RDTdshort)
+					*zp = DecodeDepth16(x, y);
 				else
 					*zp = .0f;
 				return true;
@@ -218,7 +233,7 @@ class PixelAccess {
 					copyscolr(SCB(dx,dy), SCB(sx,sy));
 				else
 					copyscolor(SCF(dx,dy), SCF(sx,sy));
-				switch (RDTdepthT(dtyp)) {
+				switch (DepthType()) {
 				case RDTdfloat:
 					dbase.f[rowStride*dy + dx] =
 							dbase.f[rowStride*sy + sx];
@@ -251,9 +266,10 @@ class RpictSimulManager : protected RtraceSimulManager
 	COLORV *		barPix;			// current render bar pixels
 	float *			barDepth;		// current render bar depths
 	bool			SetTile(const int ti[2]);
-	bool			RenderRect();
+	bool			RenderRect(const int x0 = 0, const int y0 = 0);
 	bool			ComputePixel(int x, int y);
-	bool			BelowSampThresh(int x, int y, const int noff[4][2]) const;
+	bool			BelowSampThresh(const int x, const int y,
+							const int noff[4][2]) const;
 	void			FillSquare(const int x, const int y, const int noff[4][2]);
 	void			NewBar(int ht = 0);
 	bool			LowerBar(int v, int ytop);
@@ -293,10 +309,18 @@ class RpictSimulManager : protected RtraceSimulManager
 	bool			AddHeader(int ac, char *av[]) {
 					return RtraceSimulManager::AddHeader(ac, av);
 				}
+				/// Get current header length in bytes
+	int			GetHeadLen() const {
+					return RtraceSimulManager::GetHeadLen();
+				}
 				/// Get header lines if any
-	const char *		GetHeader() const {
-					return RtraceSimulManager::GetHeader();
+	const char *		GetHeadStr() const {
+					return RtraceSimulManager::GetHeadStr();
 				}
+				/// Look for specific header keyword, return value
+	const char *		GetHeadStr(const char *key, bool inOK = false) const {
+					return RtraceSimulManager::GetHeadStr(key, inOK);
+				}
 				/// Set number of computation threads (0 => #cores)
 	int			SetThreadCount(int nt = 0) {
 					return RtraceSimulManager::SetThreadCount(nt);
@@ -392,7 +416,7 @@ class RpictSimulManager : protected RtraceSimulManager
 	RenderDataType		ResumeFrame(const char *pfname,
 						const char *dfname=NULL);
 				/// Prepare new picture (and depth) output
-				/// Called by RenderFrame()
+				/// Called by RenderFrame() after NewFrame()
 	RenderDataType		NewOutput(FILE *pdfp[2], const char *pfname,
 						RenderDataType dt=RDTrgbe,
 						const char *dfname=NULL);