Multithreaded resource loading

[AthenaOfDelphi]

Hi Andru,

I'm afraid, the first time it ran, this was all that was displayed where the speaker should be:-

Corruption.png

I've run it again, and it works perfectly. Here's the log from the first run.

=====================
=== ZenGL 0.2 RC4 ===
=====================
[00000000ms] Begin
[00000001ms] Current mode: 1680 x 1050
[00000628ms] wglChoosePixelFormatARB: zDepth = 24; stencil = 0; fsaa = 0
[00000678ms] Create OpenGL Context
[00000699ms] Making current OpenGL context
[00000699ms] GL_VERSION: 2.1.2
[00000699ms] GL_RENDERER: GeForce 7600 GT/PCI/SSE2/3DNOW!
[00000699ms] GL_MAX_TEXTURE_SIZE: 4096
[00000699ms] GL_ARB_TEXTURE_COMPRESSION: TRUE
[00000699ms] GL_EXT_TEXTURE_COMPRESSION_S3TC: TRUE
[00000699ms] GL_MAX_TEXTURE_UNITS_ARB: 4
[00000700ms] GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: 16
[00000700ms] GL_EXT_BLEND_FUNC_SEPARATE: TRUE
[00000700ms] GL_ARB_VERTEX_BUFFER_OBJECT: TRUE
[00000700ms] GL_EXT_FRAMEBUFFER_OBJECT: TRUE
[00000700ms] WGL_PBUFFER: TRUE
[00000700ms] Support WaitVSync: TRUE
[00000702ms] DirectSound: loading DSound.dll
[00001107ms] DirectSound: sound system initialized
[00001505ms] Texture loaded: "data/font-page0.png"
[00001602ms] Texture loaded: "data/halloween/Alien.png"
[00001679ms] Texture loaded: "data/halloween/Bat.png"
[00001752ms] Texture loaded: "data/halloween/Casper.png"
[00001820ms] Texture loaded: "data/halloween/Chucky.png"
[00001894ms] Texture loaded: "data/halloween/Devil.png"
[00001959ms] Texture loaded: "data/halloween/Dracula.png"
[00002022ms] Texture loaded: "data/halloween/Frankenstein.png"
[00002090ms] Texture loaded: "data/halloween/Freddie.png"
[00002145ms] Texture loaded: "data/halloween/Ghost.png"
[00002204ms] Texture loaded: "data/halloween/Gomez.png"
[00002254ms] Texture loaded: "data/halloween/Jack Skellington.png"
[00002305ms] Texture loaded: "data/halloween/Jason.png"
[00002367ms] Texture loaded: "data/halloween/Kokey.png"
[00002426ms] Texture loaded: "data/halloween/Mike.png"
[00002490ms] Texture loaded: "data/halloween/Mummy.png"
[00002542ms] Texture loaded: "data/halloween/Pumpkin.png"
[00002601ms] Texture loaded: "data/halloween/Scream.png"
[00002657ms] Texture loaded: "data/halloween/Skull.png"
[00002715ms] Texture loaded: "data/halloween/Slimer.png"
[00002767ms] Texture loaded: "data/halloween/Squash.png"
[00002773ms] Sound loaded: "data/click.wav"
[00002786ms] Texture loaded: "data/audio-stop.png"
[00002800ms] Texture loaded: "data/audio-play.png"
[00002925ms] Texture loaded: "data/zengl.png"
[00057600ms] Ogg: Initialized
[00084432ms] Average FPS: 747
[00084460ms] Timers to free: 2
[00084461ms] Render Targets to free: 0
[00084460ms] Atlases to free: 0
[00084460ms] Textures to free: 26
[00084460ms] Fonts to free: 1
[00084461ms] Sounds to free: 1
[00084624ms] DirectSound: sound system finalized
[00084707ms] End

Really, this is exactly the same as the first time I tried it. The first run, it failed with a corrupted image... after that, all seemed OK.

[Nitrogen]

Here's my run:

=====================
=== ZenGL 0.2 RC4 ===
=====================
[00000000ms] Begin
[00000000ms] Current mode: 1680 x 1050
[00000180ms] wglChoosePixelFormatARB: zDepth = 24; stencil = 0; fsaa = 0
[00000197ms] Create OpenGL Context
[00000199ms] Making current OpenGL context
[00000200ms] GL_VERSION: 3.3.0
[00000200ms] GL_RENDERER: GeForce 8800 GT/PCI/SSE2
[00000200ms] GL_MAX_TEXTURE_SIZE: 8192
[00000200ms] GL_ARB_TEXTURE_COMPRESSION: TRUE
[00000200ms] GL_EXT_TEXTURE_COMPRESSION_S3TC: TRUE
[00000200ms] GL_MAX_TEXTURE_UNITS_ARB: 4
[00000200ms] GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: 16
[00000200ms] GL_EXT_BLEND_FUNC_SEPARATE: TRUE
[00000200ms] GL_ARB_VERTEX_BUFFER_OBJECT: TRUE
[00000200ms] GL_EXT_FRAMEBUFFER_OBJECT: TRUE
[00000200ms] WGL_PBUFFER: TRUE
[00000201ms] Support WaitVSync: TRUE
[00000201ms] DirectSound: loading DSound.dll
[00000223ms] DirectSound: sound system initialized
[00000465ms] Texture loaded: "data/font-page0.png"
[00001069ms] Texture loaded: "data/halloween/Alien.png"
[00001123ms] Texture loaded: "data/halloween/Bat.png"
[00001174ms] Texture loaded: "data/halloween/Casper.png"
[00001224ms] Texture loaded: "data/halloween/Chucky.png"
[00001278ms] Texture loaded: "data/halloween/Devil.png"
[00001327ms] Texture loaded: "data/halloween/Dracula.png"
[00001377ms] Texture loaded: "data/halloween/Frankenstein.png"
[00001432ms] Texture loaded: "data/halloween/Freddie.png"
[00001484ms] Texture loaded: "data/halloween/Ghost.png"
[00001534ms] Texture loaded: "data/halloween/Gomez.png"
[00001582ms] Texture loaded: "data/halloween/Jack Skellington.png"
[00001632ms] Texture loaded: "data/halloween/Jason.png"
[00001684ms] Texture loaded: "data/halloween/Kokey.png"
[00001737ms] Texture loaded: "data/halloween/Mike.png"
[00001792ms] Texture loaded: "data/halloween/Mummy.png"
[00001841ms] Texture loaded: "data/halloween/Pumpkin.png"
[00001888ms] Texture loaded: "data/halloween/Scream.png"
[00001941ms] Texture loaded: "data/halloween/Skull.png"
[00001995ms] Texture loaded: "data/halloween/Slimer.png"
[00002046ms] Texture loaded: "data/halloween/Squash.png"
[00002049ms] Sound loaded: "data/click.wav"
[00002061ms] Texture loaded: "data/audio-stop.png"
[00002070ms] Texture loaded: "data/audio-play.png"
[00002144ms] Texture loaded: "data/zengl.png"
[00005586ms] Average FPS: 1901
[00005608ms] Timers to free: 2
[00005608ms] Render Targets to free: 0
[00005608ms] Atlases to free: 0
[00005608ms] Textures to free: 26
[00005608ms] Fonts to free: 1
[00005608ms] Sounds to free: 1
[00005709ms] DirectSound: sound system finalized
[00005728ms] End

My pc is a
Intel Core 2 Duo E6850 - 2gb ram
8800gt - Nvidia driver 258.96


The first time it ran, it didnt show the speaker graphic at all, just a black space.
The next time it did show the speaker, then after that it didnt come back.

It seemed to run okay (apart from the missing speaker) when I minimised it or dragged the window around while it was loading.

[de_jean_7777]

Here is the log file.

=====================
=== ZenGL 0.2 RC4 ===
=====================
[00000000ms] Begin
[00000001ms] Current mode: 1152 x 864
[00000067ms] wglChoosePixelFormatARB: zDepth = 24; stencil = 0; fsaa = 0
[00000129ms] Create OpenGL Context
[00000130ms] Making current OpenGL context
[00000130ms] GL_VERSION: 1.3.0 - Build 4.14.10.4342
[00000130ms] GL_RENDERER: Intel 845G
[00000130ms] GL_MAX_TEXTURE_SIZE: 2048
[00000130ms] GL_ARB_TEXTURE_COMPRESSION: TRUE
[00000130ms] GL_EXT_TEXTURE_COMPRESSION_S3TC: TRUE
[00000130ms] GL_MAX_TEXTURE_UNITS_ARB: 4
[00000130ms] GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: 2
[00000130ms] GL_EXT_BLEND_FUNC_SEPARATE: FALSE
[00000130ms] GL_ARB_VERTEX_BUFFER_OBJECT: TRUE
[00000130ms] GL_EXT_FRAMEBUFFER_OBJECT: FALSE
[00000130ms] WGL_PBUFFER: TRUE
[00000130ms] Support WaitVSync: TRUE
[00000132ms] DirectSound: loading DSound.dll
[00000261ms] DirectSound: sound system initialized
[00000883ms] Texture loaded: "data/font-page0.png"
[00001153ms] Texture loaded: "data/halloween/Alien.png"
[00001284ms] Texture loaded: "data/halloween/Bat.png"
[00001400ms] Texture loaded: "data/halloween/Casper.png"
[00001525ms] Texture loaded: "data/halloween/Chucky.png"
[00001661ms] Texture loaded: "data/halloween/Devil.png"
[00001796ms] Texture loaded: "data/halloween/Dracula.png"
[00001927ms] Texture loaded: "data/halloween/Frankenstein.png"
[00002062ms] Texture loaded: "data/halloween/Freddie.png"
[00002256ms] Texture loaded: "data/halloween/Ghost.png"
[00002421ms] Texture loaded: "data/halloween/Gomez.png"
[00002540ms] Texture loaded: "data/halloween/Jack Skellington.png"
[00002660ms] Texture loaded: "data/halloween/Jason.png"
[00002784ms] Texture loaded: "data/halloween/Kokey.png"
[00002914ms] Texture loaded: "data/halloween/Mike.png"
[00003046ms] Texture loaded: "data/halloween/Mummy.png"
[00003160ms] Texture loaded: "data/halloween/Pumpkin.png"
[00003271ms] Texture loaded: "data/halloween/Scream.png"
[00003390ms] Texture loaded: "data/halloween/Skull.png"
[00003524ms] Texture loaded: "data/halloween/Slimer.png"
[00003650ms] Texture loaded: "data/halloween/Squash.png"
[00003653ms] Sound loaded: "data/click.wav"
[00003676ms] Texture loaded: "data/audio-stop.png"
[00003699ms] Texture loaded: "data/audio-play.png"
[00003893ms] Texture loaded: "data/zengl.png"

[Andru]

Thanks for tests and logs. This weekend I will try to make a demo with second thread that will have own window and DC(maybe problem in one Device Context for two threads under Windows). Till that I will be waiting an answer from service centre, because today power supply from my PC died...

[azrael11]

my pc is P4 3 GHz
Nvidia 8400 512Ram

Runs great

=====================
=== ZenGL 0.2 RC4 ===
=====================
[00000001ms] Begin
[00000001ms] Current mode: 1024 x 768
[00001111ms] wglChoosePixelFormatARB: zDepth = 24; stencil = 0; fsaa = 0
[00001195ms] Create OpenGL Context
[00001211ms] Making current OpenGL context
[00001212ms] GL_VERSION: 3.3.0
[00001212ms] GL_RENDERER: GeForce 8400 GS/PCI/SSE2
[00001212ms] GL_MAX_TEXTURE_SIZE: 8192
[00001212ms] GL_ARB_TEXTURE_COMPRESSION: TRUE
[00001212ms] GL_EXT_TEXTURE_COMPRESSION_S3TC: TRUE
[00001213ms] GL_MAX_TEXTURE_UNITS_ARB: 4
[00001220ms] GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: 16
[00001220ms] GL_EXT_BLEND_FUNC_SEPARATE: TRUE
[00001220ms] GL_ARB_VERTEX_BUFFER_OBJECT: TRUE
[00001220ms] GL_EXT_FRAMEBUFFER_OBJECT: TRUE
[00001220ms] WGL_PBUFFER: TRUE
[00001220ms] Support WaitVSync: TRUE
[00001276ms] DirectSound: loading DSound.dll
[00001386ms] DirectSound: sound system initialized
[00001756ms] Texture loaded: "data/font-page0.png"
[00001891ms] Texture loaded: "data/halloween/Alien.png"
[00001997ms] Texture loaded: "data/halloween/Bat.png"
[00002098ms] Texture loaded: "data/halloween/Casper.png"
[00002197ms] Texture loaded: "data/halloween/Chucky.png"
[00002304ms] Texture loaded: "data/halloween/Devil.png"
[00002403ms] Texture loaded: "data/halloween/Dracula.png"
[00002500ms] Texture loaded: "data/halloween/Frankenstein.png"
[00002607ms] Texture loaded: "data/halloween/Freddie.png"
[00002711ms] Texture loaded: "data/halloween/Ghost.png"
[00002810ms] Texture loaded: "data/halloween/Gomez.png"
[00002903ms] Texture loaded: "data/halloween/Jack Skellington.png"
[00003000ms] Texture loaded: "data/halloween/Jason.png"
[00003102ms] Texture loaded: "data/halloween/Kokey.png"
[00003205ms] Texture loaded: "data/halloween/Mike.png"
[00003313ms] Texture loaded: "data/halloween/Mummy.png"
[00003408ms] Texture loaded: "data/halloween/Pumpkin.png"
[00003500ms] Texture loaded: "data/halloween/Scream.png"
[00003597ms] Texture loaded: "data/halloween/Skull.png"
[00003705ms] Texture loaded: "data/halloween/Slimer.png"
[00003803ms] Texture loaded: "data/halloween/Squash.png"
[00003824ms] Sound loaded: "data/click.wav"
[00003844ms] Texture loaded: "data/audio-stop.png"
[00003862ms] Texture loaded: "data/audio-play.png"
[00004009ms] Texture loaded: "data/zengl.png"
[00017844ms] Ogg: Initialized
[00040080ms] Average FPS: 197
[00040091ms] Timers to free: 2
[00040091ms] Render Targets to free: 0
[00040091ms] Atlases to free: 0
[00040091ms] Textures to free: 26
[00040126ms] Fonts to free: 1
[00040126ms] Sounds to free: 1
[00040132ms] DirectSound: sound system finalized
[00040197ms] End

[code_glitch]

works 100% on both graphics cards (I have stretchable) with this spec:
windows 7 Hp 64 bit
4gb ddr3 ram
ATI 4330HD and GMA 4500MHD
SU4100 @ 1.3ghz

loaded great, and wuite fast. Cpu tops out at around 7-8% with a few megs of ram.

[User137]

I was able to make my ImageViewer work with separate thread properly.

Execute doesn't free on exit but it sets Finished variable true. Main application loop checks in its start if Finished is set and then do the Finish; to bind texture and fill the data in with glTexImage2D().

  TLoadThread = class(TThread)
  private
    fn: string;
    texIndex: integer;
    finished: boolean;
  public
    constructor Create(_texIndex: integer; _fn: string);
    procedure Execute; override;
    procedure Finish;
  end;

constructor TLoadThread.Create(_texIndex: integer; _fn: string);
begin
  inherited Create(False);
  texIndex:=_texIndex; fn:=_fn;
  finished:=false;
  FreeOnTerminate:=True;
end;

procedure TLoadThread.Execute;
begin
  tex.LoadTextureData(@tex.texture[texIndex],fn);
  if terminated then exit;
  finished:=true;
end;

procedure TLoadThread.Finish;
begin
  tex.Restore(texIndex);
  form1.loader:=nil;
  form1.MakeDispList;
  Terminate;
end;

ps. missing pascal tags...

[Andru]

Execute doesn't free on exit but it sets Finished variable true. Main application loop checks in its start if Finished is set and then do the Finish; to bind texture and fill the data in with glTexImage2D().

Yeah, this is one of solution, but this is not so interesting as two independent threads And if I get a fail, I will use this method to load the resources(decoding in separate thread and uploading to videocard in main thread).