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Merge pull request #3969 from CodeLinaro:apreetam_7thPost

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Modified QcAllocator to store File Descriptor
This commit is contained in:
Alexander Smorkalov
2025-07-16 13:35:13 +03:00
committed by GitHub
parent d943e1d61c d6e2199e69
commit 735b7a0a36
2 changed files with 11 additions and 2 deletions
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5
modules/fastcv/include/opencv2/fastcv/allocator.hpp
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@@ -36,12 +36,15 @@ private:
/**
* @brief Qualcomm's custom allocator.
* This allocator uses Qualcomm's memory management functions.
*
* Note: The userdata field of cv::UMatData is used to store the file descriptor (fd) of the allocated memory.
*
*/
class QcAllocator : public cv::MatAllocator {
public:
QcAllocator();
~QcAllocator();
cv::UMatData* allocate(int dims, const int* sizes, int type, void* data0, size_t* step, cv::AccessFlag flags, cv::UMatUsageFlags usageFlags) const CV_OVERRIDE;
bool allocate(cv::UMatData* u, cv::AccessFlag accessFlags, cv::UMatUsageFlags usageFlags) const CV_OVERRIDE;
void deallocate(cv::UMatData* u) const CV_OVERRIDE;

8
modules/fastcv/src/allocator.cpp
View File

@@ -55,13 +55,19 @@ cv::UMatData* QcAllocator::allocate(int dims, const int* sizes, int type,
}
total *= sizes[i];
}
uchar* data = data0 ? (uchar*)data0 : (uchar*)fcvHwMemAlloc(total, 16);
int fd = -1;
uchar* data = data0 ? (uchar*)data0 : (uchar*)fcvHwMemAlloc(total, 16, &fd);
cv::UMatData* u = new cv::UMatData(this);
u->data = u->origdata = data;
u->size = total;
if(data0)
u->flags |= cv::UMatData::USER_ALLOCATED;
// Store FD in userdata (cast to void*)
if (fd >= 0)
u->userdata = reinterpret_cast<void*>(static_cast<intptr_t>(fd));
// Add to active allocations
cv::fastcv::QcResourceManager::getInstance().addAllocation(data);