89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
/* date = March 22nd 2022 6:40 pm */
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#ifndef LUMENARIUM_ENGINE_ASSEMBLY_H
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#define LUMENARIUM_ENGINE_ASSEMBLY_H
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// Assembly_Handle is valid for any index, including zero. However,
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// valid values must have the high bit set. This way, the handle declared
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// via Assembly_Handle my_handle = {}; is invalid, while still allowing
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// index zero to be used in the array.
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//
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// If memory corruption becomes an issue we can make this a bigger bit
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// field that we check since Lumenarium doesn't ever really expect to have
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// more than 128 sculptures in a scene - but who knows, maybe someday O.o?
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#define ASSEMBLY_HANDLE_VALID_BIT (1 << 31)
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#define ASSEMBLY_HANDLE_INDEX_MASK ~ASSEMBLY_HANDLE_VALID_BIT
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typedef struct Assembly_Handle Assembly_Handle;
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struct Assembly_Handle
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{
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u32 value;
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};
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typedef union Assembly_Pixel Assembly_Pixel;
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union Assembly_Pixel
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{
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struct {
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u8 r;
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u8 g;
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u8 b;
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};
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u8 channels[3];
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};
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typedef struct Assembly_Pixel_Buffer Assembly_Pixel_Buffer;
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struct Assembly_Pixel_Buffer
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{
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u32 cap;
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u32 len;
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Assembly_Pixel* pixels;
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v4* positions;
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};
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typedef struct Assembly_Strip Assembly_Strip;
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struct Assembly_Strip
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{
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u32 pixels_cap;
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u32 pixels_len;
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// array of indices into the Assembly_Pixel_Buffer for the same assembly
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u32* pixels;
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Output_Data_Kind output_kind;
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u32 sacn_universe;
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};
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typedef struct Assembly_Strip_Array Assembly_Strip_Array;
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struct Assembly_Strip_Array
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{
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u32 cap;
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u32 len;
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Assembly_Strip* strips;
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};
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typedef struct Assembly_Array Assembly_Array;
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struct Assembly_Array
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{
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u32 cap;
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u32 len;
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// assembly names
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String* names;
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// each assembly gets its own pixel buffer
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Assembly_Pixel_Buffer* pixel_buffers;
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// each assembly gets its own array of strips which
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// index into that assemblies pixel_buffer
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Assembly_Strip_Array* strip_arrays;
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Allocator* allocator;
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};
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Assembly_Array assembly_array_create(Allocator* allocator, u32 cap);
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Assembly_Handle assembly_add(Assembly_Array* a, String name, u32 pixels_cap, u32 strips_cap);
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void assembly_rem(Assembly_Array* a, Assembly_Handle h);
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Assembly_Strip* assembly_add_strip(Assembly_Array* a, Assembly_Handle h, u32 pixels_cap);
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void assembly_add_led(Assembly_Array* a, Assembly_Handle h, Assembly_Strip* strip, v4 position);
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#endif //LUMENARIUM_ENGINE_ASSEMBLY_H
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