bufferallocator.h

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#pragma once
 
 
#include <promeki/config.h>
#if PROMEKI_ENABLE_CORE
#include <cstddef>
#include <promeki/namespace.h>
#include <promeki/sharedptr.h>
#include <promeki/string.h>
#include <promeki/buffer.h>
 
PROMEKI_NAMESPACE_BEGIN
 
#if PROMEKI_ENABLE_PROAV
class ImageDesc;
class AudioDesc;
#endif
 
class BufferAllocator {
        public:
                PROMEKI_SHARED_BASE(BufferAllocator)
 
                
                using Ptr = SharedPtr<BufferAllocator, /*CopyOnWrite=*/false>;
 
                BufferAllocator() = default;
                virtual ~BufferAllocator() = default;
 
                BufferAllocator(const BufferAllocator &)            = delete;
                BufferAllocator &operator=(const BufferAllocator &) = delete;
 
                virtual String name() const = 0;
 
#if PROMEKI_ENABLE_PROAV
                virtual Buffer allocateVideoPlane(const ImageDesc &desc, int planeIndex) const = 0;
 
                virtual Buffer allocateAudioChunk(const AudioDesc &desc, size_t samples) const = 0;
#endif // PROMEKI_ENABLE_PROAV
 
                virtual Buffer allocateBytes(size_t bytes, size_t align = 0) const = 0;
 
                static Ptr defaultAllocator();
};
 
class DefaultBufferAllocator : public BufferAllocator {
        public:
                PROMEKI_SHARED_DERIVED(DefaultBufferAllocator)
 
                DefaultBufferAllocator() = default;
                ~DefaultBufferAllocator() override = default;
 
                String name() const override;
#if PROMEKI_ENABLE_PROAV
                Buffer allocateVideoPlane(const ImageDesc &desc, int planeIndex) const override;
                Buffer allocateAudioChunk(const AudioDesc &desc, size_t samples) const override;
#endif
                Buffer allocateBytes(size_t bytes, size_t align = 0) const override;
};
 
PROMEKI_NAMESPACE_END
 
#endif // PROMEKI_ENABLE_CORE