RhiTextureReadback.hpp

#pragma once
#include <score_plugin_gfx_export.h>
 
#include <cstddef>
 
class QRhi;
class QRhiCommandBuffer;
class QRhiTexture;
 
namespace score::gfx
{
struct ReadbackTarget;
 
SCORE_PLUGIN_GFX_EXPORT
bool canReadbackToHostMemory(QRhi& rhi) noexcept;
 
enum class ReadbackPath
{
  Unsupported,
  HostCopy, 
  Import    
};
ReadbackPath readbackPath(QRhi& rhi) noexcept;
 
SCORE_PLUGIN_GFX_EXPORT
std::size_t readbackHostMemoryAlignment(QRhi& rhi) noexcept;
 
SCORE_PLUGIN_GFX_EXPORT
bool readbackTextureSupported(QRhi& rhi, QRhiTexture& src, std::size_t dstBytes) noexcept;
 
SCORE_PLUGIN_GFX_EXPORT
std::size_t readbackDstOffsetAlignment(QRhi& rhi, QRhiTexture& src) noexcept;
 
SCORE_PLUGIN_GFX_EXPORT
ReadbackTarget* createReadbackTarget(QRhi& rhi, void* dst, std::size_t bytes);
 
SCORE_PLUGIN_GFX_EXPORT
void destroyReadbackTarget(ReadbackTarget*);
 
SCORE_PLUGIN_GFX_EXPORT
bool readbackTextureToHost(
    QRhi& rhi, QRhiCommandBuffer& cb, QRhiTexture& src, ReadbackTarget& dst,
    std::size_t dstOffset = 0);
 
SCORE_PLUGIN_GFX_EXPORT
bool finishReadbackToHost(QRhi& rhi, ReadbackTarget& dst);
}