168 lines
3.0 KiB
C
168 lines
3.0 KiB
C
////////////////////////////////
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//~ Texture types
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Struct(S_Texture)
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{
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b32 valid;
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b32 loaded;
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GPU_Resource *gpu_resource;
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u32 width;
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u32 height;
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};
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extern Readonly S_Texture S_NilTexture;
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////////////////////////////////
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//~ Sheet types
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Struct(S_Frame)
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{
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u32 index;
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f64 duration;
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ClipRect clip;
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};
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Struct(S_Span)
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{
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S_Span *next_in_bin;
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u64 hash;
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String name;
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u32 start;
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u32 end;
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};
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Struct(S_SpanBin)
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{
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S_Span *first;
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S_Span *last;
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};
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Struct(S_Slice)
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{
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/* If 1, this slice was not copied over from another frame in the sprite sheet */
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b32 is_original;
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/* If 1, the slice has a corresponding '.ray' slice affecting the 'dir' fields */
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b32 has_dir;
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/* Values are in the range -0.5 (top / left edge) -> +0.5 (bottom / right edge) */
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Rect rect;
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Vec2 center;
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Vec2 dir;
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/* '_px' values retain the original sprite pixel dimensions */
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Rect rect_px;
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Vec2 center_px;
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Vec2 dir_px;
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};
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Struct(S_SliceGroup)
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{
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S_SliceGroup *next_in_bin;
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u64 hash;
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String name;
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S_Slice *slices;
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};
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Struct(S_SliceGroupBin)
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{
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S_SliceGroup *first;
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S_SliceGroup *last;
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};
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Struct(S_Sheet)
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{
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b32 valid;
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b32 loaded;
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Vec2 image_size;
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Vec2 frame_size;
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u32 frames_count;
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S_Frame *frames;
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u32 spans_count;
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S_Span *spans;
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u32 slice_groups_count;
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S_SliceGroup *slice_groups;
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u32 span_bins_count;
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S_SpanBin *span_bins;
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u32 slice_group_bins_count;
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S_SliceGroupBin *slice_group_bins;
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};
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extern Readonly S_Sheet S_NilSheet;
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////////////////////////////////
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//~ Cache types
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Struct(S_Entry)
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{
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S_Entry *next_in_bin;
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S_Texture texture;
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S_Sheet sheet;
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Atomic32 texture_touched;
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Atomic32 sheet_touched;
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Resource resource;
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Counter texture_load_counter;
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Counter sheet_load_counter;
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};
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Struct(S_EntryBin)
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{
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S_Entry *first;
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S_Entry *last;
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Mutex mutex;
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};
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////////////////////////////////
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//~ State
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#define S_EntryBinsCount 1024
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Struct(S_SharedState)
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{
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S_EntryBin entry_bins[S_EntryBinsCount];
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};
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extern S_SharedState S_shared_state;
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////////////////////////////////
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//~ Load jobs
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JobDecl(S_LoadTextureJob, { S_Entry *entry; });
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JobDecl(S_LoadSheetJob, { S_Entry *entry; });
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////////////////////////////////
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//~ Cache operations
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Enum(S_FetchFlag)
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{
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S_FetchFlag_None = 0,
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S_FetchFlag_Texture = (1 << 0),
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S_FetchFlag_Sheet = (1 << 1),
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};
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S_Entry *S_FetchEntry(Resource resource, JobPool pool, S_FetchFlag flags);
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////////////////////////////////
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//~ Sprite data retrieval operations
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S_Texture *S_TextureFromResource(Resource resource);
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S_Texture *S_TextureFromResourceAsync(Resource resource);
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S_Sheet *S_SheetFromResource(Resource resource);
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S_Sheet *S_SheetFromResourceAsync(Resource resource);
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////////////////////////////////
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//~ Sheet access operations
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S_Span S_SpanFromName(S_Sheet *sheet, String name);
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S_Frame S_FrameFromIndex(S_Sheet *sheet, u64 index);
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S_Slice S_SliceFromName(S_Sheet *sheet, String name, u64 frame_index);
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