2ee5118d7a
* cleanup eglSync * properly release buffers in renderer * add renderingDoneCallback and use it in screencopy * use static constructor for CEGLSync
66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
#include "SyncReleaser.hpp"
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#include "SyncTimeline.hpp"
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#include "../../render/OpenGL.hpp"
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#include <sys/ioctl.h>
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#if defined(__linux__)
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#include <linux/sync_file.h>
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#else
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struct sync_merge_data {
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char name[32];
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__s32 fd2;
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__s32 fence;
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__u32 flags;
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__u32 pad;
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};
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#define SYNC_IOC_MAGIC '>'
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#define SYNC_IOC_MERGE _IOWR(SYNC_IOC_MAGIC, 3, struct sync_merge_data)
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#endif
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using namespace Hyprutils::OS;
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CSyncReleaser::CSyncReleaser(SP<CSyncTimeline> timeline, uint64_t point) : m_timeline(timeline), m_point(point) {
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;
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}
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CSyncReleaser::~CSyncReleaser() {
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if (!m_timeline) {
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Debug::log(ERR, "CSyncReleaser destructing without a timeline");
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return;
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}
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if (m_fd.isValid())
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m_timeline->importFromSyncFileFD(m_point, m_fd);
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else
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m_timeline->signal(m_point);
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}
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static CFileDescriptor mergeSyncFds(const CFileDescriptor& fd1, const CFileDescriptor& fd2) {
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// combines the fences of both sync_fds into a dma_fence_array (https://www.kernel.org/doc/html/latest/driver-api/dma-buf.html#c.dma_fence_array_create)
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// with the signal_on_any param set to false, so the new sync_fd will "signal when all fences in the array signal."
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struct sync_merge_data data{
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.name = "merged release fence",
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.fd2 = fd2.get(),
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.fence = -1,
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};
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int err = -1;
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do {
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err = ioctl(fd1.get(), SYNC_IOC_MERGE, &data);
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} while (err == -1 && (errno == EINTR || errno == EAGAIN));
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if (err < 0)
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return CFileDescriptor{};
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else
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return CFileDescriptor(data.fence);
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}
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void CSyncReleaser::addSyncFileFd(const Hyprutils::OS::CFileDescriptor& syncFd) {
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if (m_fd.isValid())
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m_fd = mergeSyncFds(m_fd, syncFd);
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else
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m_fd = syncFd.duplicate();
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}
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void CSyncReleaser::drop() {
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m_timeline.reset();
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}
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