45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
#ifndef RESOURCE_BUFFER_H
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#define RESOURCE_BUFFER_H
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#include <stdint.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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//
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// Pairs a memory buffer with an ID that can be used to unload the backing asset if needed.
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// Use this when you want to load an asset from a resource that requires more than just `free` on the underlying buffer.
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// e.g.
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// ```
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// uint64_t id = get_next_resource_id();
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// AAsset *asset = AAssetManager_open(am, name, AASSET_MODE_BUFFER);
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// off_t length = AAsset_getLength(asset);
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// const void * buffer = AAsset_getBuffer(asset);
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// uint8_t *buf = new uint8_t[length ];
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// memcpy(buf,buffer, length);
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// ResourceBuffer rb(buf, length, id);
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// ...
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// ...
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// (elsewhere)
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// AAsset* asset = get_asset_from_id(rb.id);
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// AAsset_close(asset);
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// free_asset_id(rb.id);
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//
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struct ResourceBuffer {
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#if defined(__cplusplus)
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ResourceBuffer(const void* data, const uint32_t size, const uint32_t id) : data(data), size(size), id(id) {};
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ResourceBuffer& operator=(ResourceBuffer other) {
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data = other.data;
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size = other.size;
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id = other.id;
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return *this;
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}
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#endif
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const void* data;
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uint32_t size;
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uint32_t id;
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};
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#if defined(__cplusplus)
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}
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#endif
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#endif
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