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Screencast: use dma-bufs only when client explicitly asks for it

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This commit is contained in:
Jan Grulich 2021-05-05 10:01:49 +02:00
parent 5739603145
commit caaabf84df
1 changed files with 10 additions and 2 deletions
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12
src/plugins/screencast/pipewirestream.cpp
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@ -106,13 +106,16 @@ void PipeWireStream::onStreamParamChanged(void *data, uint32_t id, const struct
void PipeWireStream::onStreamAddBuffer(void *data, pw_buffer *buffer)
{
QSharedPointer<DmaBufTexture> dmabuf;
PipeWireStream *stream = static_cast<PipeWireStream *>(data);
struct spa_data *spa_data = buffer->buffer->datas;
spa_data->mapoffset = 0;
spa_data->flags = SPA_DATA_FLAG_READWRITE;
QSharedPointer<DmaBufTexture> dmabuf(kwinApp()->platform()->createDmaBufTexture(stream->m_resolution));
if (spa_data[0].type != SPA_ID_INVALID && spa_data[0].type & (1 << SPA_DATA_DmaBuf))
dmabuf.reset(kwinApp()->platform()->createDmaBufTexture(stream->m_resolution));
if (dmabuf) {
spa_data->type = SPA_DATA_DmaBuf;
spa_data->fd = dmabuf->fd();
@ -122,6 +125,11 @@ void PipeWireStream::onStreamAddBuffer(void *data, pw_buffer *buffer)
stream->m_dmabufDataForPwBuffer.insert(buffer, dmabuf);
#ifdef F_SEAL_SEAL //Disable memfd on systems that don't have it, like BSD < 12
} else {
if (!(spa_data[0].type & (1 << SPA_DATA_MemFd))) {
qCCritical(KWIN_SCREENCAST) << "memfd: Client doesn't support memfd buffer data type";
return;
}
const int bytesPerPixel = stream->m_hasAlpha ? 4 : 3;
const int stride = SPA_ROUND_UP_N (stream->m_resolution.width() * bytesPerPixel, 4);
spa_data->maxsize = stride * stream->m_resolution.height();
@ -341,7 +349,7 @@ void PipeWireStream::recordFrame(GLTexture *frameTexture, const QRegion &damaged
const auto size = frameTexture->size();
spa_data->chunk->offset = 0;
if (data) {
if (data || spa_data[0].type == SPA_DATA_MemFd) {
const int bpp = data && !m_hasAlpha ? 3 : 4;
const uint stride = SPA_ROUND_UP_N (size.width() * bpp, 4);
const uint bufferSize = stride * size.height();