Split out configuration file code from m_misc.c into m_config.c. Move

screenshot code into v_video.c Add M_FileLength common function for
finding the length of an open file.

Subversion-branch: /trunk/chocolate-doom
Subversion-revision: 1102

1 files changed, 125 insertions, 2 deletions

diff --git a/src/v_video.c b/src/v_video.c
index a4a556bf..82d9f357 100644
--- a/src/v_video.c
+++ b/src/v_video.c
@@ -35,11 +35,13 @@
 #include "doomdef.h"
 #include "doomdata.h"
 
+#include "deh_main.h"
 #include "m_bbox.h"
 #include "i_swap.h"
-
+#include "i_video.h"
+#include "m_misc.h"
 #include "v_video.h"
-
+#include "w_wad.h"
 #include "z_zone.h"
 
 // Each screen is [SCREENWIDTH*SCREENHEIGHT]; 
@@ -493,3 +495,124 @@ void V_Init (void)
     }
 }
 
+//
+// SCREEN SHOTS
+//
+
+typedef struct
+{
+    char		manufacturer;
+    char		version;
+    char		encoding;
+    char		bits_per_pixel;
+
+    unsigned short	xmin;
+    unsigned short	ymin;
+    unsigned short	xmax;
+    unsigned short	ymax;
+    
+    unsigned short	hres;
+    unsigned short	vres;
+
+    unsigned char	palette[48];
+    
+    char		reserved;
+    char		color_planes;
+    unsigned short	bytes_per_line;
+    unsigned short	palette_type;
+    
+    char		filler[58];
+    unsigned char	data;		// unbounded
+} PACKEDATTR pcx_t;
+
+
+//
+// WritePCXfile
+//
+
+void WritePCXfile(char *filename, byte *data,
+                  int width, int height,
+                  byte *palette)
+{
+    int		i;
+    int		length;
+    pcx_t*	pcx;
+    byte*	pack;
+	
+    pcx = Z_Malloc (width*height*2+1000, PU_STATIC, NULL);
+
+    pcx->manufacturer = 0x0a;		// PCX id
+    pcx->version = 5;			// 256 color
+    pcx->encoding = 1;			// uncompressed
+    pcx->bits_per_pixel = 8;		// 256 color
+    pcx->xmin = 0;
+    pcx->ymin = 0;
+    pcx->xmax = SHORT(width-1);
+    pcx->ymax = SHORT(height-1);
+    pcx->hres = SHORT(width);
+    pcx->vres = SHORT(height);
+    memset (pcx->palette,0,sizeof(pcx->palette));
+    pcx->color_planes = 1;		// chunky image
+    pcx->bytes_per_line = SHORT(width);
+    pcx->palette_type = SHORT(2);	// not a grey scale
+    memset (pcx->filler,0,sizeof(pcx->filler));
+
+    // pack the image
+    pack = &pcx->data;
+	
+    for (i=0 ; i<width*height ; i++)
+    {
+	if ( (*data & 0xc0) != 0xc0)
+	    *pack++ = *data++;
+	else
+	{
+	    *pack++ = 0xc1;
+	    *pack++ = *data++;
+	}
+    }
+    
+    // write the palette
+    *pack++ = 0x0c;	// palette ID byte
+    for (i=0 ; i<768 ; i++)
+	*pack++ = *palette++;
+    
+    // write output file
+    length = pack - (byte *)pcx;
+    M_WriteFile (filename, pcx, length);
+
+    Z_Free (pcx);
+}
+
+//
+// V_ScreenShot
+//
+
+void V_ScreenShot (void)
+{
+    int		i;
+    byte*	linear;
+    char	lbmname[12];
+    
+    // munge planar buffer to linear
+    linear = screens[2];
+    I_ReadScreen (linear);
+    
+    // find a file name to save it to
+    strcpy(lbmname,"DOOM00.pcx");
+		
+    for (i=0 ; i<=99 ; i++)
+    {
+	lbmname[4] = i/10 + '0';
+	lbmname[5] = i%10 + '0';
+	if (!M_FileExists(lbmname))
+	    break;	// file doesn't exist
+    }
+    if (i==100)
+	I_Error ("V_ScreenShot: Couldn't create a PCX");
+    
+    // save the pcx file
+    WritePCXfile (lbmname, linear,
+		  SCREENWIDTH, SCREENHEIGHT,
+		  W_CacheLumpName (DEH_String("PLAYPAL"), PU_CACHE));
+}
+