added timedemo_screenshotframelist cvar which lets you take screenshots

on specific frames during a timedemo, for image quality comparisons

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@9504 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/cl_screen.c b/cl_screen.c
index 0bd5a9e4fcb6f50068db81a4b84eb5ebf6dfa139..93060830a5ffecc162ab6224ad0d6670f9d0d5a7 100644 (file)
--- a/cl_screen.c
+++ b/cl_screen.c
@@ -58,6 +58,7 @@ cvar_t scr_refresh = {0, "scr_refresh", "1", "allows you to completely shut off
 cvar_t scr_screenshot_name_in_mapdir = {CVAR_SAVE, "scr_screenshot_name_in_mapdir", "0", "if set to 1, screenshots are placed in a subdirectory named like the map they are from"};
 cvar_t shownetgraph = {CVAR_SAVE, "shownetgraph", "0", "shows a graph of packet sizes and other information, 0 = off, 1 = show client netgraph, 2 = show client and server netgraphs (when hosting a server)"};
 cvar_t cl_demo_mousegrab = {0, "cl_demo_mousegrab", "0", "Allows reading the mouse input while playing demos. Useful for camera mods developed in csqc. (0: never, 1: always)"};
+cvar_t timedemo_screenshotframelist = {0, "timedemo_screenshotframelist", "", "when performing a timedemo, take screenshots of each frame in this space-separated list - example: 1 201 401"};
 
 extern cvar_t r_glsl;
 extern cvar_t v_glslgamma;
@@ -886,6 +887,7 @@ void CL_Screen_Init(void)
        Cvar_RegisterVariable(&scr_refresh);
        Cvar_RegisterVariable(&shownetgraph);
        Cvar_RegisterVariable(&cl_demo_mousegrab);
+       Cvar_RegisterVariable(&timedemo_screenshotframelist);
 
        Cmd_AddCommand ("sizeup",SCR_SizeUp_f, "increase view size (increases viewsize cvar)");
        Cmd_AddCommand ("sizedown",SCR_SizeDown_f, "decrease view size (decreases viewsize cvar)");
@@ -1589,6 +1591,41 @@ void SCR_DrawScreen (void)
                r_refdef.view.useperspective = false;
        }
 
+       if (cls.timedemo && cls.td_frames > 0 && timedemo_screenshotframelist.string && timedemo_screenshotframelist.string[0])
+       {
+               const char *t;
+               int framenum;
+               t = timedemo_screenshotframelist.string;
+               while (*t)
+               {
+                       while (*t == ' ')
+                               t++;
+                       if (!*t)
+                               break;
+                       framenum = atof(t);
+                       if (framenum == cls.td_frames)
+                               break;
+                       while (*t && *t != ' ')
+                               t++;
+               }
+               if (*t)
+               {
+                       // we need to take a screenshot of this frame...
+                       char filename[MAX_QPATH];
+                       unsigned char *buffer1;
+                       unsigned char *buffer2;
+                       unsigned char *buffer3;
+                       dpsnprintf(filename, sizeof(filename), "timedemoscreenshots/%s%06d.tga", cls.demoname, cls.td_frames);
+                       buffer1 = (unsigned char *)Mem_Alloc(tempmempool, vid.width * vid.height * 3);
+                       buffer2 = (unsigned char *)Mem_Alloc(tempmempool, vid.width * vid.height * 3);
+                       buffer3 = (unsigned char *)Mem_Alloc(tempmempool, vid.width * vid.height * 3 + 18);
+                       SCR_ScreenShot(filename, buffer1, buffer2, buffer3, 0, 0, vid.width, vid.height, false, false, false, false, true);
+                       Mem_Free(buffer1);
+                       Mem_Free(buffer2);
+                       Mem_Free(buffer3);
+               }
+       }
+
        // draw 2D stuff
        if(!scr_con_current && !(key_consoleactive & KEY_CONSOLEACTIVE_FORCED))
                if ((key_dest == key_game || key_dest == key_message) && !r_letterbox.value)