XBox Controller Stalls and Fixing GL Blit Gamma — Handmade Hero — Episode Guide

0:08Hype 4coder 4.0.2 super

2:36Recap and set the stage for the day

3:09Run the game and view the current state of the profiler

4:52handmade_debug.cpp: Review the profiling code

8:40handmade_debug.cpp: Note that we are using the EndClock value before it's been written

9:33handmade_debug.cpp: Compute that Duration in CollateDebugRecords and correctly set the ClockBasis

11:31Run the game and view our more plausible profile result

12:44handmade_debug.cpp: Reenable and rewrite the text on hover

13:38Run the game and view this text on hover

14:39Blackboard: Pointer alignment and random picking from an array

17:06handmade_debug.cpp: Make the Colors array be a non-multiple of four

17:47Run the game and see our different zones in the profiler

19:13handmade_render_group.cpp: Add SortBias to the object_transform so the SortKey automatically takes it into account

20:38On writing TODOs^α

22:13handmade_debug.cpp: Introduce Transforms in DEBUGTextOp

23:51Run the game and note that our problem hasn't been fixed

24:13handmade_debug.h: Add Transforms to the debug_state

25:55handmade_debug.cpp: Initialise the Transforms in DEBUGStart

26:58handmade_debug.cpp: Pass BackingTransform to the PushRect calls in DrawProfileIn

28:27Run the game and view our profiler

29:31Blackboard: What the profiler is showing us may be happening after the point SwapBuffers is called

34:18Point out how useful profiling is

36:43win32_handmade.cpp: Investigate what's happening in our input processing

39:53Run the game and note that we need the ability to narrow in on a profile region

40:42win32_handmade.cpp: Comment out the "Input Processing" block

41:06Run the game and discover that the XBox controllers are taking 2,000,000 cycles to poll

41:54Describe and consider how to work around a well-known XInputGetState bug when polling XBox controllers

45:45win32_handmade.cpp: Introduce XBoxControllerPresent, assume they're all plugged in at startup and stop polling for them when we realise they're not

48:44Run the game and see none of that controller polling nonsense

50:05Discover that the software renderer does not draw the profiler properly

51:24handmade_opengl.cpp: Make glTexImage2D take GL_SRGB8_ALPHA8

52:45Run the game and see that that was the problem

53:40Explain how gamma is treated in the renderer

55:31Note that we need to reserve one texture at startup in case we would like to do OpenGL bitmap display

56:18Demo the bug with switching between the renderers

57:27win32_handmade.cpp: Introduce OpenGLReservedBlitTexture and set one of them Win32InitOpenGL

58:57Run the game and see that we now no longer have that bug, but do have a bug with pixel centers for the fonts

1:00:40Q&A

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1:00:40Q&A

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1:00:40Q&A

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1:01:08cmuratori insobot What do you think of Microsoft's Tay bot?

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1:01:08cmuratori insobot What do you think of Microsoft's Tay bot?

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1:01:08cmuratori insobot What do you think of Microsoft's Tay bot?

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1:01:22insobot cmuratori Oh wow. I guess i should say? Wow, thought i came

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1:01:22insobot cmuratori Oh wow. I guess i should say? Wow, thought i came

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1:01:22insobot cmuratori Oh wow. I guess i should say? Wow, thought i came

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1:01:30garlandobloom Q: Can't remember what OpenGL considers the center of the pixel...?

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1:01:30garlandobloom Q: Can't remember what OpenGL considers the center of the pixel...?

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1:01:30garlandobloom Q: Can't remember what OpenGL considers the center of the pixel...?

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1:02:50jameswidman Is romp just a synonym for clobber?

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1:02:50jameswidman Is romp just a synonym for clobber?

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1:02:50jameswidman Is romp just a synonym for clobber?

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1:02:56zargy Will the opening cutscene be narrated?

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1:02:56zargy Will the opening cutscene be narrated?

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1:02:56zargy Will the opening cutscene be narrated?

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1:03:12erdomina Could you elucidate further on the waiting for VSync in the profiler?

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1:03:12erdomina Could you elucidate further on the waiting for VSync in the profiler?

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1:03:12erdomina Could you elucidate further on the waiting for VSync in the profiler?

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1:05:42cubercaleb I actually prefer the fonts that the software renderer produces. Is there anything we can do to make them look that way in GL?

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1:05:42cubercaleb I actually prefer the fonts that the software renderer produces. Is there anything we can do to make them look that way in GL?

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1:05:42cubercaleb I actually prefer the fonts that the software renderer produces. Is there anything we can do to make them look that way in GL?

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1:06:36lailynn7 Recommended entry-level programming language for aspiring game devs?

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1:06:36lailynn7 Recommended entry-level programming language for aspiring game devs?

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1:06:36lailynn7 Recommended entry-level programming language for aspiring game devs?

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1:10:54longboolean Is there anything that can be done to help make it easier to hover / click on the debug visualization?

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1:10:54longboolean Is there anything that can be done to help make it easier to hover / click on the debug visualization?

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1:10:54longboolean Is there anything that can be done to help make it easier to hover / click on the debug visualization?

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1:12:06insobot popcorn0x90 You can implement most of it, replacing most of

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1:12:06insobot popcorn0x90 You can implement most of it, replacing most of

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1:12:06insobot popcorn0x90 You can implement most of it, replacing most of

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1:12:13ginger_bill Are all the textures transferred every frame?

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1:12:13ginger_bill Are all the textures transferred every frame?

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1:12:13ginger_bill Are all the textures transferred every frame?

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1:14:40cubercaleb In the debug UI will we be able to click on a frame and have it blit that frame?

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1:14:40cubercaleb In the debug UI will we be able to click on a frame and have it blit that frame?

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1:14:40cubercaleb In the debug UI will we be able to click on a frame and have it blit that frame?

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1:15:42xxmyrrdinxx Could you explain in what consist the dynamic resolution? Texture rescale, viewport rescale?

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1:15:42xxmyrrdinxx Could you explain in what consist the dynamic resolution? Texture rescale, viewport rescale?

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1:15:42xxmyrrdinxx Could you explain in what consist the dynamic resolution? Texture rescale, viewport rescale?

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1:16:16dudeinbasement1 Are we going to have it auto-pause on long frames?

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1:16:16dudeinbasement1 Are we going to have it auto-pause on long frames?

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1:16:16dudeinbasement1 Are we going to have it auto-pause on long frames?

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1:16:38hwd2ro What about checking for memory leaks?

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1:16:38hwd2ro What about checking for memory leaks?

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1:16:38hwd2ro What about checking for memory leaks?

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1:17:38zach211w At what point would you make the transition from a more basic language like JavaScript over to a language like C?

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1:17:38zach211w At what point would you make the transition from a more basic language like JavaScript over to a language like C?

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1:17:38zach211w At what point would you make the transition from a more basic language like JavaScript over to a language like C?

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1:21:55dudeinbasement1 Sorry, have a fail-safe to see when we stutter to pause the system and debug it

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1:21:55dudeinbasement1 Sorry, have a fail-safe to see when we stutter to pause the system and debug it

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1:21:55dudeinbasement1 Sorry, have a fail-safe to see when we stutter to pause the system and debug it

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1:23:05Close

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1:23:05Close

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1:23:05Close

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1:24:02Promote 4coder

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1:24:02Promote 4coder

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1:24:02Promote 4coder

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