Lumenarium/todo.txt

TODO FOLDHAUS

Pick Up Where You Left Off
- In a node, you aren't filling in all the LED lists. Some of them (the outputs) are empty 
when you reach the pattern proc because theyre outputs. 
SOLUTION: Probably want to take the led lists out of each set of colors and just pass them in
once per data struct.




Name
x lumen lab
- Splash screen (like blender) (thisll be fun)
-  x Create Image
-  - Image importer (stb image? or find a png > bmp converter for the image you have)
-  - Display on startup

/Debug
x There's an extra tri/quad sometimes when the renderer starts
x Something is still happening when I reload a dll, it sometimes has an error.
x    Fixing the debug system seems to have solved this too. Keep an eye out tho
x Make debug scope tracking thread safe - was throwing an error in stringsequal but that stopped. 
x    Keep an eye out.

Application
x File Browsing to load sculptures
x Different Memory Layouts
-  x General Purpose - ideally growable but shouldn't exhibit any size change outside of like 1000x sculptures, for assets etc.
-  x SACN - growable, in its own memory. This is a central system.
-  x Sculpture - per scultpure, monolithic memory allocation
-              x track each sculpture in general purpose memory, linked list
-              x need to move the assemblies structs back up the list when I remove an earlier one (ie. remove 0, shift 1 to 0, etc.);
- More efficient HSV <-> RGB

x Load/Unload sculptures
-  x Load Function
-  x Unload Function
-  x Call From Interface
-  - Make sure that we offload unloading until after all jobs are completed. Otherwise they'll try and write
-    to data that doesn't exist
- Save and load a session
-  - Serialize Channels
-  - Serialize Patterns
- Don't render if the window isn't visible

Development
x Reloadable DLL
x Make sure Debug Info Isn't Lost When We Reload the DLL
- Fix your scope time tracker to account for threads.
- Nest scope times so you can see totals/dig in
x Darken the area behind debug text so you can see it.
- Log memory allocations

Data Output
x output the data (check but I think we're doing this)
x Universe view - pannable grid of universes with labels

Interface
x pattern controls
- fullscreen
- In world interface elements
-   - Handles for Patterns
-   - UI Popups
-   - Value modifiers
- Scroll view
- Update the text system - use system fonts

Switch To Nodes
x basic node elements
-   x ports (expected value) (in/out)
-   x display value
-   x connections
-   - evaluation nodes (nodes that we start evaluation from)
-   - evaluation step (one node at a time)
-   - process to execute
x reflection
-   x look at struct members and figure out how to draw it (see notes at bottom)
-   x associate with a process
x draw nodes on canvas
x interact
-   x move around
-   x reconnect
-   x move connections handles (see casey)
- serialize
- delete nodes
- need a way to add a timer to the nodes system (oscillators)
- probably want to build some build-in nodes so they can have custom behavior
-   - static value: color, float, int etc
-   - oscillators
-   - hue range 


Patterns
x arbitrary assemblies

x reload at runtime
- load patterns from a separate dll
x pattern initialization
- multiple active patterns
-  - pattern blending
-  - only update active patterns
- Parameters

Structure
x load structure from a file
x generate arbitrary assemblies
- multiple assemblies
- motion
x reasses if control boxes are even a necessary structure

Renderer
x Push Buffer Renderer
x Get Headers out of the command structs
x Render Text Batch Command
x Render Quads Batch Command
x vertex buffer
x depth sorting
- Mouse Picking - point at a led and see info about it
x Camera: tumble controls
- Camera: pan
- Camera: zoom
- Camera: leds always face camera

Resource Management
x Manually Load/Unload Textures
- TODO: Need to figure out which textures are currently in graphics memory and which need to be resubmitted
- Icons

Animation
- timeline
- create clips that play
- clips can have parameters that drive them?
- clips should have prerequesites
-  - channels active
-  - patterns active in the channel
-  - when a clip is playing, it should just take over the whole structure

Command Line
- select a channel/pattern
- Channel: Add/remove pattern by name
- Channel: Set Blend Mode
- Channel: Set Current Pattern
- Pattern: Edit parameter values

Optimization
- patterns are asking to be multithreaded
- probably want to convert as much color functions to use u32 Packed Colors
-  - Probably want to think about this more. What about supporting different color depths
-    for different output devices?



NOTES

Reflection for Nodes

// These used for the reflection system
#define CANVAS_STRUCT(name) struct name
#define CANVAS_INPUT(type, name) type name
#define CANVAS_OUTPUT(type, name) type name

CANVAS_STRUCT(multiply_data)
{
    CANVAS_INPUT(r32, A);
        CANVAS_INPUT(r32, B);
        CANVAS_OUTPUT(r32, C);
}

CANVAS_PROC(multiply_proc)
{
    multiply_data* Data = (multiply_data*)Data;
        Data->C = Data->A * Data->B;
}

node
{
    InputCount 2
        node_port_values* Inputs;
    
        OutputCount 1
        node_port_values* Outputs;
}

node_port_value
{
    type NodeInputType_r32
        s32 MemoryOffsetFromHead;
        s32 DataSize;
    
        r32 UnconnectedValue;
        r32* ConnectedValue; // Overrides Unconnected
}

u8* GetValueAddress (node_port_value* Port)
{
    u8* Result = &Port->UnconnectedValue;
        if (Port->ConnectedValue)
    {
        Result = Port->ConnectedValue;
    }
    return Result;
}

void UpdateCanvasElement (u8* Data, s32 DataSize, node* Node)
{
    for (s32 i = 0; i < Node->InputCount; i++)
    {
        GSMemCopy(GetValueAddress(&Node->Input[i]), 
            Data + Node->Input[i].MemoryOffsetFromHead, 
            Node->Input[i].DataSize);
    }
}

void InitializeMultiplyNode ()
{
    node Multiply = {};
        Multiply.InputCount = 2;
        Alloc Inputs
    
        Input[0].
}