Add demo to "movie" conversion.

It currently writes a series of png files (QF/qfmvNNNNNN.png), at a fixed
rate of 30fps, with no sound recording.

include/QF/screen.h

@@ -56,6 +56,7 @@ void SCR_DrawTurtle (void);
 void SCR_DrawPause (void);
 
 struct tex_s *SCR_ScreenShot (int width, int height);
+struct tex_s *SCR_CaptureBGR (void);
 void SCR_DrawStringToSnap (const char *s, struct tex_s *tex, int x, int y);
 int MipColor (int r, int g, int b);
 int SCR_ModalMessage (const char *text);

libs/video/renderer/gl/gl_screen.c

@@ -28,8 +28,7 @@
 # include "config.h"
 #endif
 
-static __attribute__ ((used)) const char rcsid[] = 
+static __attribute__ ((used)) const char rcsid[] = "$Id$";
-	"$Id$";
 
 #ifdef HAVE_STRING_H
 # include <string.h>
@@ -66,6 +65,24 @@ static __attribute__ ((used)) const char rcsid[] =
 
 /* SCREEN SHOTS */
 
+VISIBLE tex_t *
+SCR_CaptureBGR (void)
+{
+	int         count;
+	tex_t      *tex;
+
+	count = vid.width * vid.height;
+	tex = malloc (field_offset (tex_t, data[count * 3]));
+	SYS_CHECKMEM (tex);
+	tex->width = vid.width;
+	tex->height = vid.height;
+	tex->format = tex_rgb;
+	tex->palette = 0;
+	qfglReadPixels (0, 0, tex->width, tex->height, GL_BGR_EXT,
+					GL_UNSIGNED_BYTE, tex->data);
+	return tex;
+}
+
 VISIBLE tex_t *
 SCR_ScreenShot (int width, int height)
 {
@@ -133,7 +150,6 @@ SCR_ScreenShot (int width, int height)
 void
 SCR_ScreenShot_f (void)
 {
-	byte       *buffer;
 	dstring_t  *pcxname = dstring_new ();
 
 	// find a file name to save it to
@@ -141,12 +157,11 @@ SCR_ScreenShot_f (void)
 						   va ("%s/qf", qfs_gamedir->dir.shots), ".tga")) {
 		Sys_Printf ("SCR_ScreenShot_f: Couldn't create a TGA file\n");
 	} else {
-		buffer = malloc (vid.width * vid.height * 3);
+		tex_t      *tex;
-		SYS_CHECKMEM (buffer);
+
-		qfglReadPixels (0, 0, vid.width, vid.height, GL_BGR_EXT,
+		tex = SCR_CaptureBGR ();
-						GL_UNSIGNED_BYTE, buffer);
+		WriteTGAfile (pcxname->str, tex->data, tex->width, tex->height);
-		WriteTGAfile (pcxname->str, buffer, vid.width, vid.height);
+		free (tex);
-		free (buffer);
 		Sys_Printf ("Wrote %s/%s\n", qfs_userpath, pcxname->str);
 	}
 	dstring_delete (pcxname);

libs/video/renderer/glsl/glsl_screen.c

@@ -203,6 +203,31 @@ SCR_UpdateScreen (double realtime, SCR_Func *scr_funcs)
 	qfglFlush ();
 }
 
+VISIBLE tex_t *
+SCR_CaptureBGR (void)
+{
+	byte       *r, *b;
+	int         count, i;
+	tex_t      *tex;
+
+	count = vid.width * vid.height;
+	tex = malloc (field_offset (tex_t, data[count * 3]));
+	SYS_CHECKMEM (tex);
+	tex->width = vid.width;
+	tex->height = vid.height;
+	tex->format = tex_rgb;
+	tex->palette = 0;
+	qfglReadPixels (0, 0, vid.width, vid.height, GL_RGB,
+					GL_UNSIGNED_BYTE, tex->data);
+	for (i = 0, r = tex->data, b = tex->data + 2; i < count;
+		 i++, r += 3, b += 3) {
+		byte        t = *b;
+		*b = *r;
+		*r = t;
+	}
+	return tex;
+}
+
 VISIBLE tex_t *
 SCR_ScreenShot (int width, int height)
 {
@@ -212,28 +237,18 @@ SCR_ScreenShot (int width, int height)
 VISIBLE void
 SCR_ScreenShot_f (void)
 {
-	byte       *buffer, *r, *b;
 	dstring_t  *name = dstring_new ();
-	int         size, i;
 
 	// find a file name to save it to
 	if (!QFS_NextFilename (name,
 						   va ("%s/qf", qfs_gamedir->dir.shots), ".png")) {
 		Sys_Printf ("SCR_ScreenShot_f: Couldn't create a PNG file\n");
 	} else {
-		size = vid.width * vid.height;
+		tex_t      *tex;
-		buffer = malloc (size * 3);
+
-		SYS_CHECKMEM (buffer);
+		tex = SCR_CaptureBGR ();
-		qfglReadPixels (0, 0, vid.width, vid.height, GL_RGB,
+		WritePNGqfs (name->str, tex->data, tex->width, tex->height);
-						GL_UNSIGNED_BYTE, buffer);
+		free (tex);
-		// FIXME have to swap rgb (WritePNG bug?)
-		for (i = 0, r = buffer, b = buffer + 2; i < size; i++, r+=3, b+=3) {
-			byte        t = *b;
-			*b = *r;
-			*r = t;
-		}
-		WritePNGqfs (name->str, buffer, vid.width, vid.height);
-		free (buffer);
 		Sys_Printf ("Wrote %s/%s\n", qfs_userpath, name->str);
 	}
 	dstring_delete (name);

libs/video/renderer/sw/screen.c

@@ -28,8 +28,7 @@
 # include "config.h"
 #endif
 
-static __attribute__ ((used)) const char rcsid[] = 
+static __attribute__ ((used)) const char rcsid[] = "$Id$";
-	"$Id$";
 
 #ifdef HAVE_STRING_H
 # include <string.h>
@@ -87,6 +86,36 @@ SCR_ApplyBlend (void)		// Used to be V_UpdatePalette
 
 /* SCREEN SHOTS */
 
+VISIBLE tex_t *
+SCR_CaptureBGR (void)
+{
+	int         count, x, y;
+	tex_t      *tex;
+	const byte *src;
+	byte       *dst;
+
+	count = vid.width * vid.height;
+	tex = malloc (field_offset (tex_t, data[count * 3]));
+	SYS_CHECKMEM (tex);
+	tex->width = vid.width;
+	tex->height = vid.height;
+	tex->format = tex_rgb;
+	tex->palette = 0;
+	D_EnableBackBufferAccess ();
+	src = vid.buffer;
+	for (y = 0; y < tex->height; y++) {
+		dst = tex->data + (tex->height - 1 - y) * tex->width * 3;
+		for (x = 0; x < tex->width; x++) {
+			*dst++ = vid.basepal[*src * 3 + 2]; // blue
+			*dst++ = vid.basepal[*src * 3 + 1]; // green
+			*dst++ = vid.basepal[*src * 3 + 0];	// red
+			src++;
+		}
+	}
+	D_DisableBackBufferAccess ();
+	return tex;
+}
+
 tex_t *
 SCR_ScreenShot (int width, int height)
 {

libs/video/renderer/sw32/screen.c

@@ -28,8 +28,7 @@
 # include "config.h"
 #endif
 
-static __attribute__ ((used)) const char rcsid[] = 
+static __attribute__ ((used)) const char rcsid[] = "$Id$";
-	"$Id$";
 
 #ifdef HAVE_STRING_H
 # include <string.h>
@@ -155,6 +154,36 @@ SCR_ApplyBlend (void)		// Used to be V_UpdatePalette
 
 /* SCREEN SHOTS */
 
+VISIBLE tex_t *
+SCR_CaptureBGR (void)
+{
+	int         count, x, y;
+	tex_t      *tex;
+	const byte *src;
+	byte       *dst;
+
+	count = vid.width * vid.height;
+	tex = malloc (field_offset (tex_t, data[count * 3]));
+	SYS_CHECKMEM (tex);
+	tex->width = vid.width;
+	tex->height = vid.height;
+	tex->format = tex_rgb;
+	tex->palette = 0;
+	D_EnableBackBufferAccess ();
+	src = vid.buffer;
+	for (y = 0; y < tex->height; y++) {
+		dst = tex->data + (tex->height - 1 - y) * tex->width * 3;
+		for (x = 0; x < tex->width; x++) {
+			*dst++ = vid.basepal[*src * 3 + 2]; // blue
+			*dst++ = vid.basepal[*src * 3 + 1]; // green
+			*dst++ = vid.basepal[*src * 3 + 0];	// red
+			src++;
+		}
+	}
+	D_DisableBackBufferAccess ();
+	return tex;
+}
+
 VISIBLE tex_t *
 SCR_ScreenShot (int width, int height)
 {

nq/include/client.h

@@ -119,6 +119,7 @@ typedef struct
 // demo recording info must be here, because record is started before
 // entering a map (and clearing client_state_t)
 	qboolean	demorecording;
+	qboolean	demo_capture;
 	qboolean	demoplayback;
 	qboolean	timedemo;
 	int			forcetrack;			// -1 = use normal cd track

nq/source/cl_demo.c

@@ -126,6 +126,7 @@ CL_StopPlayback (void)
 	Qclose (cls.demofile);
 	cls.demofile = NULL;
 	CL_SetState (ca_disconnected);
+	cls.demo_capture = 0;
 	cls.demoplayback = 0;
 	key_game_target = IMT_0;
 	Key_SetKeyDest (key_game);
@@ -384,7 +385,17 @@ CL_PlayDemo_f (void)
 	if (cmd_source != src_command)
 		return;
 
-	if (Cmd_Argc () != 2) {
+	switch (Cmd_Argc ()) {
+		case 2:
+			cls.demo_capture = 0;
+			break;
+		case 3:
+			if (!strcmp (Cmd_Argv (2), "rec")) {
+				cls.demo_capture = 1;
+				break;
+			}
+			// fall through
+		default:
 			Sys_Printf ("play <demoname> : plays a demo\n");
 			return;
 	}

nq/source/host.c

@@ -41,12 +41,15 @@ static __attribute__ ((used)) const char rcsid[] = "$Id$";
 #include "QF/cmd.h"
 #include "QF/console.h"
 #include "QF/cvar.h"
+#include "QF/image.h"
 #include "QF/input.h"
 #include "QF/keys.h"
 #include "QF/msg.h"
 #include "QF/plugin.h"
+#include "QF/png.h"
 #include "QF/progs.h"
 #include "QF/qargs.h"
+#include "QF/screen.h"
 #include "QF/sys.h"
 #include "QF/va.h"
 #include "QF/vid.h"
@@ -638,6 +641,9 @@ _Host_Frame (float time)
 
 	rand ();							// keep the random time dependent
 
+	if (cls.demo_capture)
+		time = 1.0 / 30;		//FIXME fixed 30fps atm
+
 	// decide the simulation time
 	if ((sleeptime = Host_FilterTime (time)) != 0) {
 		// don't run too fast, or packet will flood outs
@@ -685,6 +691,14 @@ _Host_Frame (float time)
 	else
 		host_time += host_frametime;	//FIXME is this needed? vcr stuff
 
+	if (cls.demo_capture) {
+		tex_t      *tex = SCR_CaptureBGR ();
+		WritePNGqfs (va ("%s/qfmv%06d.png", qfs_gamedir->dir.shots,
+						 cls.demo_capture++),
+					 tex->data, tex->width, tex->height);
+		free (tex);
+	}
+
 	host_framecount++;
 	fps_count++;
 }

nq/source/sv_ded.c

@@ -33,6 +33,7 @@ static __attribute__ ((used)) const char rcsid[] = "$Id$";
 #include "QF/cdaudio.h"
 #include "QF/cvar.h"
 #include "QF/plugin.h"
+#include "QF/screen.h"
 
 #include "host.h"
 #include "server.h"
@@ -70,6 +71,13 @@ CL_UpdateScreen (double realtime)
 {
 }
 
+struct tex_s *
+SCR_CaptureBGR (void)
+{
+	return 0;
+}
+
+
 void
 CL_Cmd_ForwardToServer (void)
 {

qw/include/client.h

@@ -167,6 +167,7 @@ typedef struct
 // demo recording info must be here, because record is started before
 // entering a map (and clearing client_state_t)
 	qboolean	demorecording;
+	qboolean	demo_capture;
 	qboolean	demoplayback;
 	qboolean	demoplayback2;
 	qboolean	findtrack;

qw/source/cl_demo.c

@@ -144,6 +144,7 @@ CL_StopPlayback (void)
 	Qclose (cls.demofile);
 	cls.demofile = NULL;
 	CL_SetState (ca_disconnected);
+	cls.demo_capture = 0;
 	cls.demoplayback = 0;
 	cls.demoplayback2 = 0;
 	demotime_cached = 0;
@@ -933,7 +934,17 @@ CL_StartDemo (void)
 static void
 CL_PlayDemo_f (void)
 {
-	if (Cmd_Argc () != 2) {
+	switch (Cmd_Argc ()) {
+		case 2:
+			cls.demo_capture = 0;
+			break;
+		case 3:
+			if (!strcmp (Cmd_Argv (2), "rec")) {
+				cls.demo_capture = 1;
+				break;
+			}
+			// fall through
+		default:
 			Sys_Printf ("play <demoname> : plays a demo\n");
 			return;
 	}

qw/source/cl_main.c

@@ -71,11 +71,13 @@ static __attribute__ ((used)) const char rcsid[] =
 #include "QF/console.h"
 #include "QF/cvar.h"
 #include "QF/draw.h"
+#include "QF/image.h"
 #include "QF/input.h"
 #include "QF/keys.h"
 #include "QF/model.h"
 #include "QF/msg.h"
 #include "QF/plugin.h"
+#include "QF/png.h"
 #include "QF/progs.h"
 #include "QF/qargs.h"
 #include "QF/qendian.h"
@@ -1488,7 +1490,7 @@ Host_SimulationTime (float time)
 	if (oldrealtime > realtime)
 		oldrealtime = 0;
 
-	if (cls.timedemo)
+	if (cls.demoplayback)
 		return 0;
 
 	if (cl_maxfps->value <= 0)
@@ -1523,6 +1525,9 @@ Host_Frame (float time)
 		// something bad happened, or the server disconnected
 		return;
 
+	if (cls.demo_capture)
+		time = 1.0 / 30;		//FIXME fixed 30fps atm
+
 	// decide the simulation time
 	if ((sleeptime = Host_SimulationTime (time)) != 0) {
 #ifdef HAVE_USLEEP
@@ -1623,6 +1628,14 @@ Host_Frame (float time)
 					pass1 + pass2 + pass3, pass1, pass2, pass3);
 	}
 
+	if (cls.demo_capture) {
+		tex_t      *tex = SCR_CaptureBGR ();
+		WritePNGqfs (va ("%s/qfmv%06d.png", qfs_gamedir->dir.shots,
+						 cls.demo_capture++),
+					 tex->data, tex->width, tex->height);
+		free (tex);
+	}
+
 	host_framecount++;
 	fps_count++;
 }