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backends/drm: use linear buffers for multi gpu where necessary

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This commit is contained in:
Xaver Hugl 2022-10-01 23:46:34 +02:00
parent 1f92dc5e5d
commit ae4dd73e99
1 changed files with 4 additions and 1 deletions
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5
src/backends/drm/drm_egl_layer_surface.cpp
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@ -32,6 +32,8 @@
namespace KWin
{
static const QVector<uint64_t> linearModifier = {DRM_FORMAT_MOD_LINEAR};
EglGbmLayerSurface::EglGbmLayerSurface(DrmGpu *gpu, EglGbmBackend *eglBackend)
: m_gpu(gpu)
, m_eglBackend(eglBackend)
@ -149,6 +151,7 @@ std::optional<std::tuple<std::shared_ptr<DrmFramebuffer>, QRegion>> EglGbmLayerS
bool EglGbmLayerSurface::checkGbmSurface(const QSize &bufferSize, const QMap<uint32_t, QVector<uint64_t>> &formats, bool forceLinear)
{
forceLinear |= m_importMode == MultiGpuImportMode::DumbBuffer || m_importMode == MultiGpuImportMode::DumbBufferXrgb8888;
if (doesGbmSurfaceFit(m_gbmSurface.get(), bufferSize, formats)) {
m_oldGbmSurface.reset();
} else {
@ -181,7 +184,7 @@ bool EglGbmLayerSurface::createGbmSurface(const QSize &size, uint32_t format, co
}
if (allowModifiers) {
const auto ret = GbmSurface::createSurface(m_eglBackend, size, format, modifiers, config);
const auto ret = GbmSurface::createSurface(m_eglBackend, size, format, forceLinear ? linearModifier : modifiers, config);
if (const auto surface = std::get_if<std::shared_ptr<GbmSurface>>(&ret)) {
m_oldGbmSurface = m_gbmSurface;
m_gbmSurface = *surface;