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created a mapping from leds to universes in assemly structures that doesn't rely on SACN

This commit is contained in:
Peter Slattery 2019-11-22 23:33:48 -08:00
parent 70c9c74796
commit a5e774c8d1
3 changed files with 61 additions and 39 deletions
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33
src/foldhaus_app.cpp
View File

@ -149,11 +149,15 @@ LoadAssembly (app_state* State, context Context, char* Path)
r32 Scale = 100;
Assert(State->AssembliesCount < ASSEMBLY_LIST_LENGTH);
s32 AssemblyMemorySize = GetAssemblyMemorySizeFromDefinition(AssemblyDefinition, FileName);
u8* AssemblyMemory = Context.PlatformAlloc(AssemblyMemorySize);
assembly NewAssembly = ConstructAssemblyFromDefinition(AssemblyDefinition,
FileName,
v3{0, 0, 0},
Scale,
Context);
AssemblyMemory,
AssemblyMemorySize);
State->AssemblyList[State->AssembliesCount++] = NewAssembly;
State->TotalLEDsCount += NewAssembly.LEDCount;
@ -376,14 +380,12 @@ CreateDMXBuffers(assembly Assembly, s32 BufferHeaderSize, memory_arena* Arena)
s32 BufferSize = BufferHeaderSize + 512;
s32 Universe = 1;
s32 ChannelsUsed = 0;
for (s32 l = 0; l < Assembly.LEDCount; l++)
{
if(ChannelsUsed == 0)
for (s32 Range = 0; Range < Assembly.LEDUniverseMapCount; Range++)
{
leds_in_universe_range LEDUniverseRange = Assembly.LEDUniverseMap[Range];
dmx_buffer_list* NewBuffer = PushStruct(Arena, dmx_buffer_list);
NewBuffer->Buffer.Universe = Universe;
NewBuffer->Buffer.Universe = LEDUniverseRange.Universe;
NewBuffer->Buffer.Base = PushArray(Arena, u8, BufferSize);
NewBuffer->Buffer.TotalSize = BufferSize;
NewBuffer->Buffer.HeaderSize = BufferHeaderSize;
@ -395,17 +397,16 @@ CreateDMXBuffers(assembly Assembly, s32 BufferHeaderSize, memory_arena* Arena)
}
Head->Next = NewBuffer;
Head = NewBuffer;
}
led LED = Assembly.LEDs[l];
pixel Color = Assembly.Colors[LED.Index];
*((pixel*)(Head->Buffer.Base + ChannelsUsed)) = Color;
ChannelsUsed += 3;
if (ChannelsUsed + 3 >= 512)
for (s32 LEDIdx = LEDUniverseRange.RangeStart;
LEDIdx < LEDUniverseRange.RangeOnePastLast;
LEDIdx++)
{
Universe++;
ChannelsUsed= 0;
led LED = Assembly.LEDs[LEDIdx];
pixel Color = Assembly.Colors[LED.Index];
s32 DestinationStartChannel = LEDIdx * 3;
*((pixel*)(Head->Buffer.Base + DestinationStartChannel)) = Color;
}
}

30
src/foldhaus_assembly.cpp
View File

@ -1,31 +1,45 @@
internal s32
GetAssemblyMemorySizeFromDefinition(assembly_definition Definition, string Name)
{
s32 Result = (sizeof(led) + sizeof(pixel)) * Definition.TotalLEDCount;
Result += sizeof(leds_in_universe_range) * Definition.LEDStripCount;
Result += Name.Length;
return Result;
}
internal assembly
ConstructAssemblyFromDefinition (assembly_definition Definition,
string AssemblyName,
v3 RootPosition,
r32 Scale,
context Context)
u8* MemoryBase,
s32 MemorySize)
{
assembly Assembly = {};
Assembly.Arena = CreateMemoryArena(MemoryBase, MemorySize);
s32 MemorySize = AssemblySize(Definition.TotalLEDCount, AssemblyName.Length);
Assembly.Memory = AllocateNonGrowableArenaWithSpace(Context.PlatformAlloc, MemorySize);
Assembly.Name = MakeString(PushArray(&Assembly.Memory, char, AssemblyName.Length),
AssemblyName.Length);
Assembly.Name = MakeString(PushArray(&Assembly.Arena, char, AssemblyName.Length), AssemblyName.Length);
CopyStringTo(AssemblyName, &Assembly.Name);
// NOTE(Peter): Setting this to zero so we can check at the end of the loop that creates leds
// and make sure we created to correct number. By the time this function returns it should be
// the case that: (Assembly.LEDCount == Definition.TotalLEDCount)
Assembly.LEDCount = 0;
Assembly.Colors = PushArray(&Assembly.Memory, pixel, Definition.TotalLEDCount);
Assembly.LEDs = PushArray(&Assembly.Memory, led, Definition.TotalLEDCount);
Assembly.Colors = PushArray(&Assembly.Arena, pixel, Definition.TotalLEDCount);
Assembly.LEDs = PushArray(&Assembly.Arena, led, Definition.TotalLEDCount);
Assembly.LEDUniverseMapCount = Definition.LEDStripCount;
Assembly.LEDUniverseMap = PushArray(&Assembly.Arena, leds_in_universe_range, Definition.LEDStripCount);
// Add LEDs
for (s32 StripIdx = 0; StripIdx < Definition.LEDStripCount; StripIdx++)
{
led_strip_definition StripDef = Definition.LEDStrips[StripIdx];
leds_in_universe_range* LEDUniverseRange = Assembly.LEDUniverseMap + StripIdx;
LEDUniverseRange->Universe = StripDef.StartUniverse;
LEDUniverseRange->RangeStart = Assembly.LEDCount;
LEDUniverseRange->RangeOnePastLast = Assembly.LEDCount + StripDef.LEDsPerStrip;
// NOTE(Peter): this should be a switch on the type, but we only have one for
// now. The assert is to remind you to create more cases when necessary
Assert(StripDef.InterpolationType == StripInterpolate_Points);

15
src/foldhaus_assembly.h
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@ -15,12 +15,16 @@ union pixel
u8 Channels[3];
};
#define AssemblySize(leds, name_length) ((sizeof(led) + sizeof(pixel)) * (leds)) + name_length;
struct leds_in_universe_range
{
s32 RangeStart;
s32 RangeOnePastLast;
s32 Universe;
};
struct assembly
{
memory_arena Memory;
s32 MemorySize;
u8* MemoryBase;
static_memory_arena Arena;
string Name;
string FilePath;
@ -28,4 +32,7 @@ struct assembly
s32 LEDCount;
pixel* Colors;
led* LEDs;
s32 LEDUniverseMapCount;
leds_in_universe_range* LEDUniverseMap;
};