GpuBuffer.h

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#pragma once
 
#include <cstdint>
#include <string>
 
namespace eve::data {
class ByteData;
}
 
namespace eve::gpgpu {
 
class GpuBuffer {
public:
    GpuBuffer() = default;
    virtual ~GpuBuffer() = default;
 
    GpuBuffer(const GpuBuffer &) = delete;
    GpuBuffer &operator=(const GpuBuffer &) = delete;
 
    virtual int getSize() const = 0;
    virtual std::string getUsage() const = 0;
 
    virtual void writeData(data::ByteData *data, int dstOffset = 0) = 0;
    virtual data::ByteData *readData(int srcOffset = 0, int size = -1) = 0;
 
    virtual void writeFloat32(int floatIndex, float value) = 0;
    virtual float readFloat32(int floatIndex) = 0;
    virtual void fillFloat32(float value) = 0;
 
    virtual void writeFloat32s(const float *data, int count, int startIndex = 0) = 0;
    virtual void readFloat32s(float *out, int count, int startIndex = 0) const = 0;
 
    virtual void uploadBytes(const void *src, uint64_t nbytes, uint64_t dstOffset = 0) = 0;
    virtual void downloadBytes(void *dst, uint64_t nbytes, uint64_t srcOffset = 0) const = 0;
};
 
}  // namespace eve::gpgpu