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core/umat: usage flags (with proposals from PR #2195)

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This commit is contained in:
Alexander Alekhin
2014-02-10 16:34:45 +04:00
parent 534bec3a90
commit 95e38e457f
7 changed files with 154 additions and 64 deletions
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63
modules/core/src/ocl.cpp
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@@ -3534,19 +3534,26 @@ private:
class OpenCLAllocator : public MatAllocator
{
mutable OpenCLBufferPoolImpl bufferPool;
enum AllocatorFlags
{
ALLOCATOR_FLAGS_BUFFER_POOL_USED = 1 << 0
};
public:
OpenCLAllocator() { matStdAllocator = Mat::getStdAllocator(); }
UMatData* defaultAllocate(int dims, const int* sizes, int type, void* data, size_t* step, int flags) const
UMatData* defaultAllocate(int dims, const int* sizes, int type, void* data, size_t* step,
int flags, UMatUsageFlags usageFlags) const
{
UMatData* u = matStdAllocator->allocate(dims, sizes, type, data, step, flags);
UMatData* u = matStdAllocator->allocate(dims, sizes, type, data, step, flags, usageFlags);
return u;
}
void getBestFlags(const Context& ctx, int /*flags*/, int& createFlags, int& flags0) const
void getBestFlags(const Context& ctx, int /*flags*/, UMatUsageFlags usageFlags, int& createFlags, int& flags0) const
{
const Device& dev = ctx.device(0);
createFlags = CL_MEM_READ_WRITE;
createFlags = 0;
if ((usageFlags & USAGE_ALLOCATE_HOST_MEMORY) != 0)
createFlags |= CL_MEM_ALLOC_HOST_PTR;
if( dev.hostUnifiedMemory() )
flags0 = 0;
@@ -3555,10 +3562,10 @@ public:
}
UMatData* allocate(int dims, const int* sizes, int type,
void* data, size_t* step, int flags) const
void* data, size_t* step, int flags, UMatUsageFlags usageFlags) const
{
if(!useOpenCL())
return defaultAllocate(dims, sizes, type, data, step, flags);
return defaultAllocate(dims, sizes, type, data, step, flags, usageFlags);
CV_Assert(data == 0);
size_t total = CV_ELEM_SIZE(type);
for( int i = dims-1; i >= 0; i-- )
@@ -3570,24 +3577,39 @@ public:
Context& ctx = Context::getDefault();
int createFlags = 0, flags0 = 0;
getBestFlags(ctx, flags, createFlags, flags0);
getBestFlags(ctx, flags, usageFlags, createFlags, flags0);
CV_Assert(createFlags == CL_MEM_READ_WRITE);
size_t capacity = 0;
void* handle = bufferPool.allocate(total, capacity);
if (!handle)
return defaultAllocate(dims, sizes, type, data, step, flags);
void* handle = NULL;
int allocatorFlags = 0;
if (createFlags == 0)
{
handle = bufferPool.allocate(total, capacity);
if (!handle)
return defaultAllocate(dims, sizes, type, data, step, flags, usageFlags);
allocatorFlags = ALLOCATOR_FLAGS_BUFFER_POOL_USED;
}
else
{
capacity = total;
cl_int retval = 0;
handle = clCreateBuffer((cl_context)ctx.ptr(),
CL_MEM_READ_WRITE|createFlags, total, 0, &retval);
if( !handle || retval != CL_SUCCESS )
return defaultAllocate(dims, sizes, type, data, step, flags, usageFlags);
}
UMatData* u = new UMatData(this);
u->data = 0;
u->size = total;
u->capacity = capacity;
u->handle = handle;
u->flags = flags0;
CV_DbgAssert(!u->tempUMat()); // for bufferPool.release() consistency
u->allocatorFlags_ = allocatorFlags;
CV_DbgAssert(!u->tempUMat()); // for bufferPool.release() consistency in deallocate()
return u;
}
bool allocate(UMatData* u, int accessFlags) const
bool allocate(UMatData* u, int accessFlags, UMatUsageFlags usageFlags) const
{
if(!u)
return false;
@@ -3599,16 +3621,16 @@ public:
CV_Assert(u->origdata != 0);
Context& ctx = Context::getDefault();
int createFlags = 0, flags0 = 0;
getBestFlags(ctx, accessFlags, createFlags, flags0);
getBestFlags(ctx, accessFlags, usageFlags, createFlags, flags0);
cl_context ctx_handle = (cl_context)ctx.ptr();
cl_int retval = 0;
int tempUMatFlags = UMatData::TEMP_UMAT;
u->handle = clCreateBuffer(ctx_handle, CL_MEM_USE_HOST_PTR|createFlags,
u->handle = clCreateBuffer(ctx_handle, CL_MEM_USE_HOST_PTR|CL_MEM_READ_WRITE,
u->size, u->origdata, &retval);
if((!u->handle || retval != CL_SUCCESS) && !(accessFlags & ACCESS_FAST))
{
u->handle = clCreateBuffer(ctx_handle, CL_MEM_COPY_HOST_PTR|createFlags,
u->handle = clCreateBuffer(ctx_handle, CL_MEM_COPY_HOST_PTR|CL_MEM_READ_WRITE|createFlags,
u->size, u->origdata, &retval);
tempUMatFlags = UMatData::TEMP_COPIED_UMAT;
}
@@ -3705,7 +3727,14 @@ public:
fastFree(u->data);
u->data = 0;
}
bufferPool.release((cl_mem)u->handle, u->capacity);
if (u->allocatorFlags_ & ALLOCATOR_FLAGS_BUFFER_POOL_USED)
{
bufferPool.release((cl_mem)u->handle, u->capacity);
}
else
{
clReleaseMemObject((cl_mem)u->handle);
}
u->handle = 0;
u->capacity = 0;
delete u;