78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
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global assets *Global_Assets;
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static assets *GetAssets()
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{
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return(Global_Assets);
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}
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static void SetAssets(assets *Assets)
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{
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Global_Assets = Assets;
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}
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static void LoadAsset(asset_id ID)
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{
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assets *Assets = GetAssets();
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Assert(ID >= AssetID_None && ID < AssetID_COUNT);
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asset *Asset = Assets->Assets + ID;
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if(!Asset->IsLoaded)
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{
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temporary_memory Scratch = GetScratch();
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string Filepath = PushFormat(Scratch.Arena, "data/%s", AssetPathLUT[ID]);
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platform_file_handle File = Platform.OpenFile(Filepath, PlatformAccess_Read);
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if(File.IsValid)
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{
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u64 DataCount = Platform.GetFileSize(File);
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u8 *Data = PushArray(Scratch.Arena, u8, DataCount);
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Platform.ReadFile(File, Data, 0, DataCount);
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s32 Width, Height, BPP;
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u8 *TextureData = stbi_load_from_memory(Data, DataCount, &Width, &Height, &BPP, 0);
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render_texture_format TextureFormat = Render_TextureFormat_Invalid;
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switch(BPP)
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{
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InvalidDefaultCase;
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case 1: { TextureFormat = Render_TextureFormat_R8; } break;
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case 3: { TextureFormat = Render_TextureFormat_RGB8; } break;
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case 4: { TextureFormat = Render_TextureFormat_RGBA8; } break;
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}
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Asset->Handle = Assets->AllocateTexture(V2S32(Width, Height), TextureFormat, true, TextureData);
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stbi_image_free(TextureData);
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Platform.CloseFile(File);
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}
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ReleaseScratch(Scratch);
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}
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}
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static void LoadPermanentAssets(assets *Assets)
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{
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SetAssets(Assets);
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//- sixten: assign ID to all assets & load all permanent ones
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for(int Index = 0; Index < AssetID_COUNT; ++Index)
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{
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asset_id ID = (asset_id)Index;
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asset *Asset = Assets->Assets + Index;
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Asset->ID = ID;
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if(ID != AssetID_None)
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{
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LoadAsset(ID);
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}
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}
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}
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static render_handle TextureFromAssetID(asset_id ID)
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{
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Assert(ID >= AssetID_None && ID < AssetID_COUNT);
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asset *Asset = GetAssets()->Assets + ID;
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return(Asset->Handle);
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}
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