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Move pageFlipHandler to DrmGpu

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This commit is contained in:
Xaver Hugl 2021-03-30 13:15:09 +02:00
parent 72cc1daf22
commit e262c8df33
3 changed files with 56 additions and 57 deletions
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46
src/plugins/platforms/drm/drm_backend.cpp
View file

@ -15,7 +15,7 @@
#include "cursor.h"
#include "logging.h"
#include "main.h"
#include "renderloop_p.h"
#include "renderloop.h"
#include "scene_qpainter_drm_backend.h"
#include "session.h"
#include "udev.h"
@ -185,50 +185,6 @@ void DrmBackend::deactivate()
m_active = false;
}
static std::chrono::nanoseconds convertTimestamp(const timespec &timestamp)
{
return std::chrono::seconds(timestamp.tv_sec) + std::chrono::nanoseconds(timestamp.tv_nsec);
}
static std::chrono::nanoseconds convertTimestamp(clockid_t sourceClock, clockid_t targetClock,
const timespec &timestamp)
{
if (sourceClock == targetClock) {
return convertTimestamp(timestamp);
}
timespec sourceCurrentTime = {};
timespec targetCurrentTime = {};
clock_gettime(sourceClock, &sourceCurrentTime);
clock_gettime(targetClock, &targetCurrentTime);
const auto delta = convertTimestamp(sourceCurrentTime) - convertTimestamp(timestamp);
return convertTimestamp(targetCurrentTime) - delta;
}
void DrmBackend::pageFlipHandler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void *data)
{
Q_UNUSED(fd)
Q_UNUSED(frame)
auto output = static_cast<DrmOutput *>(data);
DrmGpu *gpu = output->gpu();
std::chrono::nanoseconds timestamp = convertTimestamp(gpu->presentationClock(),
CLOCK_MONOTONIC,
{ sec, usec * 1000 });
if (timestamp == std::chrono::nanoseconds::zero()) {
qCDebug(KWIN_DRM, "Got invalid timestamp (sec: %u, usec: %u) on output %s",
sec, usec, qPrintable(output->name()));
timestamp = std::chrono::steady_clock::now().time_since_epoch();
}
output->pageFlipped();
RenderLoopPrivate *renderLoopPrivate = RenderLoopPrivate::get(output->renderLoop());
renderLoopPrivate->notifyFrameCompleted(timestamp);
}
bool DrmBackend::initialize()
{
connect(session(), &Session::activeChanged, this, &DrmBackend::activate);

1
src/plugins/platforms/drm/drm_backend.h
View file

@ -91,7 +91,6 @@ private:
friend class DrmGpu;
void addOutput(DrmOutput* output);
void removeOutput(DrmOutput* output);
static void pageFlipHandler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void *data);
void activate(bool active);
void reactivate();
void deactivate();

66
src/plugins/platforms/drm/drm_gpu.cpp
View file

@ -16,6 +16,7 @@
#include "abstract_egl_backend.h"
#include "logging.h"
#include "session.h"
#include "renderloop_p.h"
#if HAVE_GBM
#include "egl_gbm_backend.h"
@ -322,17 +323,6 @@ DrmPlane *DrmGpu::getCompatiblePlane(DrmPlane::TypeIndex typeIndex, DrmCrtc *crt
return nullptr;
}
void DrmGpu::dispatchEvents()
{
if (!m_backend->session()->isActive()) {
return;
}
drmEventContext context = {};
context.version = 2;
context.page_flip_handler = DrmBackend::pageFlipHandler;
drmHandleEvent(m_fd, &context);
}
void DrmGpu::waitIdle()
{
m_socketNotifier->setEnabled(false);
@ -363,4 +353,58 @@ void DrmGpu::waitIdle()
m_socketNotifier->setEnabled(true);
}
static std::chrono::nanoseconds convertTimestamp(const timespec &timestamp)
{
return std::chrono::seconds(timestamp.tv_sec) + std::chrono::nanoseconds(timestamp.tv_nsec);
}
static std::chrono::nanoseconds convertTimestamp(clockid_t sourceClock, clockid_t targetClock,
const timespec &timestamp)
{
if (sourceClock == targetClock) {
return convertTimestamp(timestamp);
}
timespec sourceCurrentTime = {};
timespec targetCurrentTime = {};
clock_gettime(sourceClock, &sourceCurrentTime);
clock_gettime(targetClock, &targetCurrentTime);
const auto delta = convertTimestamp(sourceCurrentTime) - convertTimestamp(timestamp);
return convertTimestamp(targetCurrentTime) - delta;
}
static void pageFlipHandler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void *data)
{
Q_UNUSED(fd)
Q_UNUSED(frame)
auto output = static_cast<DrmOutput *>(data);
std::chrono::nanoseconds timestamp = convertTimestamp(output->gpu()->presentationClock(),
CLOCK_MONOTONIC,
{ sec, usec * 1000 });
if (timestamp == std::chrono::nanoseconds::zero()) {
qCDebug(KWIN_DRM, "Got invalid timestamp (sec: %u, usec: %u) on output %s",
sec, usec, qPrintable(output->name()));
timestamp = std::chrono::steady_clock::now().time_since_epoch();
}
output->pageFlipped();
RenderLoopPrivate *renderLoopPrivate = RenderLoopPrivate::get(output->renderLoop());
renderLoopPrivate->notifyFrameCompleted(timestamp);
}
void DrmGpu::dispatchEvents()
{
if (!m_backend->session()->isActive()) {
return;
}
drmEventContext context = {};
context.version = 2;
context.page_flip_handler = pageFlipHandler;
drmHandleEvent(m_fd, &context);
}
}