- rewrote movie player so that the decoder backends only perform the decoding but do not draw the frames themselves.

This caused twq problems:

1. It made it impossible to let the client apply effects to the video.
2. The client had no control when rendering stopped.

Now the backends only provide a texture handle that the client must draw. One immediate benefit is that Blood's fixed viewport scaling is now available to all video formats.

source/core/movie/movieplayer.cpp

@@ -67,6 +67,7 @@ public:
 	virtual bool Frame(uint64_t clock) = 0;
 	virtual void Stop() {}
 	virtual ~MoviePlayer() = default;
+	virtual FTextureID GetTexture() = 0;
 };
 
 //---------------------------------------------------------------------------
@@ -119,17 +120,12 @@ public:
 
 		if (currentclock < nextframetime - 1)
 		{
-			twod->ClearScreen();
-			DrawTexture(twod, animtex.GetFrame(), 0, 0, DTA_FullscreenEx, FSMode_ScaleToFit43, DTA_Masked, false, TAG_DONE);
 			return true;
 		}
 
 		animtex.SetFrame(ANIM_GetPalette(&anim), ANIM_DrawFrame(&anim, curframe));
 		frametime = currentclock;
 
-		twod->ClearScreen();
-		DrawTexture(twod, animtex.GetFrame(), 0, 0, DTA_FullscreenEx, FSMode_ScaleToFit43, DTA_Masked, false, TAG_DONE);
-
 		int delay = 20;
 		if (frameTicks)
 		{
@@ -168,6 +164,11 @@ public:
 		buffer.Reset();
 		animtex.Clean();
 	}
+
+	FTextureID GetTexture() override
+	{
+		return animtex.GetFrameID();
+	}
 };
 
 //---------------------------------------------------------------------------
@@ -199,8 +200,6 @@ public:
 	{
 		if (failed) return false;
 		bool playon = decoder.RunFrame(clock);
-		twod->ClearScreen();
-		DrawTexture(twod, decoder.animTex().GetFrame(), 0, 0, DTA_FullscreenEx, FSMode_ScaleToFit43, TAG_DONE);
 		return playon;
 	}
 
@@ -208,6 +207,11 @@ public:
 	{
 		decoder.Close();
 	}
+
+	FTextureID GetTexture() override
+	{
+		return decoder.animTex().GetFrameID();
+	}
 };
 
 //---------------------------------------------------------------------------
@@ -466,7 +470,6 @@ public:
 				lastsoundframe = soundframe;
 			}
 		}
-		DrawTexture(twod, animtex.GetFrame(), 0, 0, DTA_FullscreenEx, FSMode_ScaleToFit, TAG_DONE);
 		return !stop;
 	}
 
@@ -482,6 +485,11 @@ public:
 		vpx_codec_destroy(&codec);
 		animtex.Clean();
 	}
+
+	FTextureID GetTexture() override
+	{
+		return animtex.GetFrameID();
+	}
 };
 
 //---------------------------------------------------------------------------
@@ -567,7 +575,6 @@ public:
 		nFrameNs = 1'000'000'000 / nFrameRate;
 		nFrames = Smacker_GetNumFrames(hSMK);
 		Smacker_GetPalette(hSMK, palette);
-		fullscreenScale = (!(flags & FIXEDVIEWPORT) || (nWidth <= 320 && nHeight <= 200) || nWidth >= 640 || nHeight >= 480);
 
 		numAudioTracks = Smacker_GetNumAudioTracks(hSMK);
 		if (numAudioTracks)
@@ -629,14 +636,7 @@ public:
 			}
 
 		}
-		if (fullscreenScale)
+
-		{
-			DrawTexture(twod, animtex.GetFrame(), 0, 0, DTA_FullscreenEx, FSMode_ScaleToFit43, TAG_DONE);
-		}
-		else
-		{
-			DrawTexture(twod, animtex.GetFrame(), 320, 240, DTA_VirtualWidth, 640, DTA_VirtualHeight, 480, DTA_CenterOffset, true, TAG_DONE);
-		}
 		if (frame > nFrame)
 		{
 			nFrame++;
@@ -670,6 +670,12 @@ public:
 		Smacker_Close(hSMK);
 		animtex.Clean();
 	}
+
+	FTextureID GetTexture() override
+	{
+		return animtex.GetFrameID();
+	}
+
 };
 
 //---------------------------------------------------------------------------
@@ -812,3 +818,9 @@ DEFINE_ACTION_FUNCTION(_MoviePlayer, Destroy)
 	delete self;
 	return 0;
 }
+
+DEFINE_ACTION_FUNCTION(_MoviePlayer, GetTexture)
+{
+	PARAM_SELF_STRUCT_PROLOGUE(MoviePlayer);
+	ACTION_RETURN_INT(self->GetTexture().GetIndex());
+}

wadsrc/static/zscript/screenjob.zs

@@ -230,6 +230,7 @@ struct MoviePlayer native
 	native void Start();
 	native bool Frame(double clock);
 	native void Destroy();
+	native TextureID GetTexture();
 }
 
 //---------------------------------------------------------------------------
@@ -242,10 +243,12 @@ class MoviePlayerJob : SkippableScreenJob
 {
 	MoviePlayer player;
 	bool started;
+	int flag;
 
-	ScreenJob Init(MoviePlayer mp)
+	ScreenJob Init(MoviePlayer mp, int flags)
 	{
 		Super.Init();
+		flag = flags;
 		player = mp;
 		return self;
 	}
@@ -253,7 +256,7 @@ class MoviePlayerJob : SkippableScreenJob
 	static ScreenJob CreateWithSoundInfo(String filename, Array<int> soundinfo, int flags, int frametime, int firstframetime = -1, int lastframetime = -1)
 	{
 		let movie = MoviePlayer.Create(filename, soundinfo, flags, frametime, firstframetime, lastframetime);
-		if (movie) return new("MoviePlayerJob").Init(movie);
+		if (movie) return new("MoviePlayerJob").Init(movie, flags);
 		return null;
 	}
 	static ScreenJob Create(String filename, int flags, int frametime = -1)
@@ -268,6 +271,22 @@ class MoviePlayerJob : SkippableScreenJob
 		empty.Push(int(soundname));
 		return CreateWithSoundInfo(filename, empty, flags, frametime);
 	}
+	
+	virtual void DrawFrame()
+	{
+		let tex = player.GetTexture();
+		let size = TexMan.GetScaledSize(tex);
+		
+		if (!(flag & MoviePlayer.FIXEDVIEWPORT) || (size.x <= 320 && size.y <= 200) || size.x >= 640 || size.y >= 480)
+		{
+			Screen.DrawTexture(tex, false, 0, 0, DTA_FullscreenEx, FSMode_ScaleToFit43, DTA_Masked, false);
+		}
+		else
+		{
+			Screen.DrawTexture(tex, false, 320, 240, DTA_VirtualWidth, 640, DTA_VirtualHeight, 480, DTA_CenterOffset, true, DTA_Masked, false);
+		}
+
+	}
 
 	override void Draw(double smoothratio)
 	{
@@ -286,6 +305,7 @@ class MoviePlayerJob : SkippableScreenJob
 		{
 			jobstate = finished;
 		}
+		DrawFrame();
 	}
 
 	override void OnDestroy()