initial version of HOM test

src/d_main.c

@@ -129,6 +129,8 @@ static void ProcessDehLump(int lumpnum)
 
 boolean devparm;        // started game with -devparm
 
+boolean run_test;
+
 // jff 1/24/98 add new versions of these variables to remember command line
 boolean clnomonsters;   // checkparm of -nomonsters
 boolean clrespawnparm;  // checkparm of -respawn
@@ -2710,6 +2712,11 @@ void D_DoomMain(void)
     I_AtExitPrio(D_EndDoom, false, "D_EndDoom", exit_priority_last);
   }
 
+  if (M_ParmExists("-test"))
+  {
+    run_test = true;
+  }
+
   TryRunTics();
 
   D_StartGameLoop();
@@ -2719,6 +2726,50 @@ void D_DoomMain(void)
       // frame syncronous IO operations
       I_StartFrame ();
 
+      if (run_test)
+      {
+        static int oldgametic = 3;
+
+        if (gametic >= oldgametic)
+        {
+          static boolean first_test = true;
+          static boolean cycle_fov = false;
+
+          oldgametic = gametic + 3;
+
+          if (first_test)
+          {
+            custom_fov = FOV_MIN;
+            setsizeneeded = true;
+            cycle_fov = false;
+            first_test = false;
+          }
+          else if (cycle_fov)
+          {
+            if (custom_fov == FOV_MAX)
+            {
+              custom_fov = FOV_MIN;
+              cycle_fov = false;
+            }
+            else
+            {
+              custom_fov++;
+            }
+            setsizeneeded = true;
+          }
+          else
+          {
+            cycle_fov = true;
+            if (!I_ChangeRes())
+            {
+              custom_fov = FOV_DEFAULT;
+              default_widescreen = RATIO_AUTO;
+              I_SafeExit(0);
+            }
+          }
+        }
+      }
+
       TryRunTics (); // will run at least one tic
 
       // Update display, next frame, with current state.

src/d_main.h

@@ -59,6 +59,7 @@ void D_PageDrawer(void);
 void D_AdvanceDemo(void);
 void D_StartTitle(void);
 
+extern boolean run_test;
 extern boolean advancedemo;
 
 #endif

src/i_video.c

@@ -88,7 +88,8 @@ static int fpslimit; // when uncapped, limit framerate to this value
 static boolean fullscreen;
 static boolean exclusive_fullscreen;
 static boolean change_display_resolution;
-static int widescreen, default_widescreen;
+static int widescreen;
+int default_widescreen;
 static boolean vga_porch_flash; // emulate VGA "porch" behaviour
 static boolean smooth_scaling;
 static int video_display = 0; // display index
@@ -1254,7 +1255,8 @@ static void ResetResolution(int height, boolean reset_pitch)
         AM_ResetScreenSize();
     }
 
-    I_Printf(VB_DEBUG, "ResetResolution: %dx%d", video.width, video.height);
+    I_Printf(VB_DEBUG, "ResetResolution: %dx%d (%dx%d)",
+        video.width, video.height, video.unscaledw, SCREENHEIGHT);
 
     drs_skip_frame = true;
 }
@@ -1894,6 +1896,66 @@ void I_BindVideoVariables(void)
                wad_no, "Grab mouse during play");
 }
 
+static struct {
+    int w, h;
+} native_res[] = {
+    {  320,  240 },
+    {  640,  480 },
+    {  800,  600 },
+    { 1024,  768 },
+    { 1280, 1024 },
+    { 1280,  720 },
+    { 1280,  800 },
+    { 1366,  768 },
+    { 1440,  900 },
+    { 1440, 1080 },
+    { 1680, 1050 },
+    { 1920, 1080 },
+    { 1920, 1200 },
+    { 2048, 1152 },
+    { 2560, 1080 },
+    { 2304, 1440 },
+    { 2560, 1440 },
+    { 2560, 1600 },
+    { 3200, 2400 },
+    { 3440, 1440 },
+    { 3840, 1600 },
+    { 3840, 2160 },
+    { 5120, 2160 }
+};
+
+static int curr_test_res;
+
+boolean I_ChangeRes(void)
+{
+    if (curr_test_res == arrlen(native_res))
+        return false;
+
+    max_width  = native_res[curr_test_res].w;
+    max_height = native_res[curr_test_res].h;
+
+    max_height_adjusted = (int)(max_height / 1.2);
+
+    printf("I_ChangeRes: %dx%d\n", max_width, max_height);
+    ResetResolution(max_height_adjusted, true);
+    CreateSurfaces(video.pitch, video.height);
+    ResetLogicalSize();
+
+    curr_test_res++;
+
+    return true;
+}
+
+void I_CheckHOM(void)
+{
+    if (I_VideoBuffer[video.width - 1] == 0xb0)
+    {
+        I_Printf(VB_WARNING, "HOM: native %dx%d, video %dx%d, fov %d",
+                 max_width, max_height, video.width, video.height,
+                 custom_fov);
+    }
+}
+
 //----------------------------------------------------------------------------
 //
 // $Log: i_video.c,v $

src/i_video.h

@@ -98,6 +98,10 @@ void I_UpdatePriority(boolean active);
 
 void I_BindVideoVariables(void);
 
+extern int default_widescreen;
+boolean I_ChangeRes(void);
+void I_CheckHOM(void);
+
 #endif
 
 //----------------------------------------------------------------------------

src/r_main.c

@@ -26,6 +26,7 @@
 #include <string.h>
 
 #include "d_loop.h"
+#include "d_main.h"
 #include "d_player.h"
 #include "doomdata.h"
 #include "doomdef.h"
@@ -525,8 +526,8 @@ static void R_SetupFreelook(void)
     dy = 0;
   }
 
-  centery = viewheight / 2 + (dy >> FRACBITS);
-  centeryfrac = centery << FRACBITS;
+  centeryfrac = (viewheight << FRACBITS) / 2 + dy;
+  centery = centeryfrac >> FRACBITS;
 
   for (i = 0; i < viewheight; i++)
   {
@@ -913,6 +914,12 @@ void R_RenderPlayerView (player_t* player)
   R_ClearSprites ();
   VX_ClearVoxels ();
 
+  if (run_test)
+  {
+    V_FillRect(scaledviewx, scaledviewy, scaledviewwidth, scaledviewheight,
+               0xb0);
+  }
+
   if (autodetect_hom)
     { // killough 2/10/98: add flashing red HOM indicators
       pixel_t c[47*47];
@@ -1007,6 +1014,9 @@ void R_RenderPlayerView (player_t* player)
   R_SetFuzzPosDraw();
   R_DrawMasked ();
 
+  if (run_test)
+    I_CheckHOM();
+
   // Check for new console commands.
   NetUpdate ();
 }