Import Aliens vs Predator - Gold (Build 116)

Source code release, imported from:
https://www.gamefront.com/games/aliens-vs-predator-3/file/avp-gold-complete-source-code

All text files were converted to Unix format.

3dc/win95/item.c

@@ -0,0 +1,306 @@
+
+#include "3dc.h"
+#include "module.h"
+#include "inline.h"
+#include "krender.h" /* KJL 11:37:53 12/05/96 - new scandraws patch */
+
+/* KJL 15:02:50 05/14/97 - new max lighting intensity */
+#define MAX_INTENSITY (65536*4-1)
+
+
+#if StandardShapeLanguage
+
+
+#define UseLocalAssert Yes
+
+#include "ourasert.h"
+
+/*
+  The outputclockwise compile option has been
+  maintained in case anyone wants to use the existing
+  triangle array code with counterclockwise ordering.
+  In the case of Win95, we might want to this if we can ever
+  persuade the Direct3D rasterisation module to come up
+  with CULL_CCW set. Note that outputtriangles has now been purged
+  from the system.
+*/
+
+#define outputclockwise Yes
+
+#define use_div_fixed	Yes
+
+#define trip_debugger No
+
+#if trip_debugger
+int testa = 0;
+int testb = 100;
+int testc = 0;
+#endif
+
+/*
+	To make scan draws work backwards as
+	well as forwards, i.e. to cope with
+    items that would be backface culled
+	without the no cull flag set, as in racing
+	game TLOs.
+	This should now work for all polygon types.
+*/
+
+#define ReverseDraws Yes
+
+/*
+	To optimise scan draws with local variables
+	explicitly braced to improve compiler
+	optimisation.
+    NOTE THIS IS -->ONLY<-- IMPLEMENTED FOR
+	VIDEOMODETYPE_8, 2DTEXTURE, 3DTEXTURE (LINEAR)
+	AND 3DTEXTURE (LINEAR_S) AT PRESENT.
+	AND NOT ALL THE OPTIONS INSIDE THOSE!!!
+	NOTE ALSO THAT THIS APPEARS TO PRODUCE BAD CODE
+	WITH WATCOM 10.0 AND -oeitlr, BUT WE HOPE IT WILL
+	WORK WITH WATCOM 10.6
+	-->CRASHES, AS IT HAPPENS!!!<--
+*/
+/*
+	Prototypes
+*/
+
+
+
+/*
+
+ externs for commonly used global variables and arrays
+
+*/
+
+	extern int VideoModeType;
+	extern int VideoModeTypeScreen;
+	extern int ScanDrawMode;
+	extern int **ShadingTableArray;
+	extern unsigned char **PaletteShadingTableArray;
+	extern VIEWDESCRIPTORBLOCK *Global_VDB_Ptr;
+	extern unsigned char *ScreenBuffer;
+
+
+
+	extern IMAGEHEADER *ImageHeaderPtrs[MaxImages];
+	extern SCREENDESCRIPTORBLOCK ScreenDescriptorBlock;
+	extern long BackBufferPitch;
+
+    /* For multiple execute buffers */
+	extern int NumVertices;
+
+
+#endif /* for support3dtextures */
+
+/*
+
+ Global Variables
+
+*/
+
+
+//	int *ItemPointers[maxpolyptrs];
+
+//	int ItemData[maxpolys * avgpolysize];
+
+
+	int **NextFreeItemPtr;
+	int *NextFreeItemData;
+
+	int NumFreeItemPtrs;
+	int NumFreeItemData;
+
+	int ItemCount;							/* Instead of a Terminator */
+
+	POLYHEADER *global_pheader;
+
+	int MIP_Index;
+
+/*
+
+ Global Variables For Scan Convertors
+
+*/
+
+	int ScanData[maxpolys*maxscansize];
+	int *NextFreeScanData;
+	int NumFreeScanData;
+	int NumScans;
+
+   
+	int NumPolyPts;
+
+
+
+/*
+
+ Item Data Structures.
+
+ Buffer Initialisation and Allocation Functions.
+
+*/
+
+
+
+
+/*
+	John and Neal's code
+	Note this is only experimental, for the interface engine,
+	and therefore does not go through the standard scan draw
+	function array!!!  Also, it only works in VideoModeType_8!!!
+	USE AT YOUR PERIL!!!!
+*/
+
+void Draw_Line_VMType_8(VECTOR2D* LineStart, VECTOR2D* LineEnd, int LineColour)
+{
+	int gosa, tame, hani, dire;
+	int w, x, y;
+	int x1, y1, x2, y2;
+	unsigned char *sbufferptr;
+	unsigned char colour = LineColour;
+
+	x1 = LineStart->vx;
+	y1 = LineStart->vy;
+	x2 = LineEnd->vx;
+	y2 = LineEnd->vy;
+
+	x1=max(x1,Global_VDB_Ptr->VDB_ClipLeft);
+	x1=min(x1,Global_VDB_Ptr->VDB_ClipRight-1);
+	x2=max(x2,Global_VDB_Ptr->VDB_ClipLeft);
+	x2=min(x2,Global_VDB_Ptr->VDB_ClipRight-1);
+
+	y1=max(y1,Global_VDB_Ptr->VDB_ClipUp);
+	y1=min(y1,Global_VDB_Ptr->VDB_ClipDown-1);
+	y2=max(y2,Global_VDB_Ptr->VDB_ClipUp);
+	y2=min(y2,Global_VDB_Ptr->VDB_ClipDown-1);
+
+	if( abs( x2 - x1 ) < abs( y2 - y1 ) ) {
+		if( y2 < y1 ) {
+			w = y1;
+			y1 = y2;
+			y2 = w;
+			w = x1;
+			x1 = x2;
+			x2 = w;
+		}
+		dire = x1 < x2 ? 1 : -1;
+		gosa = abs( x2 - x1 );
+		hani = y2 - y1;
+		tame = hani / 2;
+		x = x1;
+		for( y = y1; y <= y2; y++ ) {
+			sbufferptr =
+				ScreenBuffer +
+				(y * BackBufferPitch) + x;
+			*sbufferptr = colour;
+			tame += gosa;
+			if( tame > hani ) {
+				x += dire;
+				tame -= hani;
+			}
+		}
+	} else {
+		if( x2 < x1 ) {
+			w = x1;
+			x1 = x2;
+			x2 = w;
+			w = y1;
+			y1 = y2;
+			y2 = w;
+		}
+		dire = y1 < y2 ? 1 : -1;
+		gosa = abs( y2 - y1 );
+		hani = x2 - x1;
+		tame = hani / 2;
+		y = y1;
+		for( x = x1; x <= x2; x++ ) {
+			sbufferptr =
+				ScreenBuffer +
+				(y * BackBufferPitch) + x;
+			*sbufferptr = colour;
+			tame += gosa;
+			if( tame > hani ) {
+				y += dire;
+				tame -= hani;
+			}
+		}
+	}
+
+}
+
+
+
+/*
+
+ Scan Convert and Draw I_GouraudPolygon
+
+*/
+
+
+void Draw_Item_GouraudPolygon(int *itemptr)
+{
+	if (ScanDrawMode == ScanDrawDirectDraw)
+   	{
+   		KDraw_Item_GouraudPolygon(itemptr);
+	}
+}
+
+
+void Draw_Item_2dTexturePolygon(int *itemptr)
+{
+	if (ScanDrawMode == ScanDrawDirectDraw)
+    {
+		KDraw_Item_2dTexturePolygon(itemptr);
+	}
+}
+
+void Draw_Item_Gouraud2dTexturePolygon(int *itemptr)
+{
+	if (ScanDrawMode == ScanDrawDirectDraw)
+	{
+		KDraw_Item_Gouraud2dTexturePolygon(itemptr);
+	}
+}
+
+void Draw_Item_Gouraud3dTexturePolygon(int *itemptr)
+{
+	if (ScanDrawMode == ScanDrawDirectDraw)
+	{
+		KDraw_Item_Gouraud3dTexturePolygon(itemptr);
+	}
+}
+
+void Draw_Item_ZB_Gouraud3dTexturePolygon(int *itemptr)
+{
+}
+
+void Draw_Item_ZB_GouraudPolygon(int *itemptr)
+{
+}
+
+
+void Draw_Item_ZB_2dTexturePolygon(int *itemptr)
+{
+}
+
+
+void Draw_Item_ZB_Gouraud2dTexturePolygon(int *itemptr)
+{
+}
+
+
+
+void Draw_Item_ZB_3dTexturedPolygon(int *itemptr)
+{
+}
+
+
+
+
+
+
+
+
+
+