PawletOS/external_libcamera
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libcamera: add DmaBufAllocator::exportBuffers()

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Add a helper function exportBuffers in DmaBufAllocator to make it easier
to use.

It'll be used in Virtual Pipeline Handler and SoftwareIsp.

Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Harvey Yang
2024-10-22 07:43:37 +00:00
committed by Kieran Bingham
parent 83c5ad0fac
commit 168488275a
2 changed files with 70 additions and 0 deletions
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13
include/libcamera/internal/dma_buf_allocator.h
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@@ -7,11 +7,17 @@
#pragma once
#include <memory>
#include <string>
#include <vector>
#include <libcamera/base/flags.h>
#include <libcamera/base/unique_fd.h>
namespace libcamera {
class FrameBuffer;
class DmaBufAllocator
{
public:
@@ -28,7 +34,14 @@ public:
bool isValid() const { return providerHandle_.isValid(); }
UniqueFD alloc(const char *name, std::size_t size);
int exportBuffers(unsigned int count,
const std::vector<unsigned int> &planeSizes,
std::vector<std::unique_ptr<FrameBuffer>> *buffers);
private:
std::unique_ptr<FrameBuffer> createBuffer(
std::string name, const std::vector<unsigned int> &planeSizes);
UniqueFD allocFromHeap(const char *name, std::size_t size);
UniqueFD allocFromUDmaBuf(const char *name, std::size_t size);
UniqueFD providerHandle_;