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Port DrmSurfaceBuffer to drmModeAddFB2

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This commit is contained in:
Xaver Hugl 2021-03-06 16:24:52 +01:00
parent a82be242ea
commit ca23bca813
2 changed files with 41 additions and 10 deletions
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50
src/plugins/platforms/drm/drm_buffer_gbm.cpp
View file

@ -22,6 +22,7 @@
#include <gbm.h> #include <gbm.h>
// KWaylandServer // KWaylandServer
#include "KWaylandServer/buffer_interface.h" #include "KWaylandServer/buffer_interface.h"
#include <drm_fourcc.h>
namespace KWin namespace KWin
{ {
@ -36,11 +37,7 @@ DrmSurfaceBuffer::DrmSurfaceBuffer(int fd, const std::shared_ptr<GbmSurface> &su
qCWarning(KWIN_DRM) << "Locking front buffer failed"; qCWarning(KWIN_DRM) << "Locking front buffer failed";
return; return;
} }
m_size = QSize(gbm_bo_get_width(m_bo), gbm_bo_get_height(m_bo)); initialize();
if (drmModeAddFB(fd, m_size.width(), m_size.height(), 24, 32, gbm_bo_get_stride(m_bo), gbm_bo_get_handle(m_bo).u32, &m_bufferId) != 0) {
qCWarning(KWIN_DRM) << "drmModeAddFB failed";
}
gbm_bo_set_user_data(m_bo, this, nullptr);
} }
DrmSurfaceBuffer::DrmSurfaceBuffer(int fd, gbm_bo *buffer, KWaylandServer::BufferInterface *bufferInterface) DrmSurfaceBuffer::DrmSurfaceBuffer(int fd, gbm_bo *buffer, KWaylandServer::BufferInterface *bufferInterface)
@ -52,11 +49,7 @@ DrmSurfaceBuffer::DrmSurfaceBuffer(int fd, gbm_bo *buffer, KWaylandServer::Buffe
m_bufferInterface->ref(); m_bufferInterface->ref();
connect(m_bufferInterface, &KWaylandServer::BufferInterface::aboutToBeDestroyed, this, &DrmSurfaceBuffer::clearBufferInterface); connect(m_bufferInterface, &KWaylandServer::BufferInterface::aboutToBeDestroyed, this, &DrmSurfaceBuffer::clearBufferInterface);
} }
m_size = QSize(gbm_bo_get_width(m_bo), gbm_bo_get_height(m_bo)); initialize();
if (drmModeAddFB(fd, m_size.width(), m_size.height(), 24, 32, gbm_bo_get_stride(m_bo), gbm_bo_get_handle(m_bo).u32, &m_bufferId) != 0) {
qCWarning(KWIN_DRM) << "drmModeAddFB failed";
}
gbm_bo_set_user_data(m_bo, this, nullptr);
} }
DrmSurfaceBuffer::~DrmSurfaceBuffer() DrmSurfaceBuffer::~DrmSurfaceBuffer()
@ -85,4 +78,41 @@ void DrmSurfaceBuffer::clearBufferInterface()
m_bufferInterface = nullptr; m_bufferInterface = nullptr;
} }
void DrmSurfaceBuffer::initialize()
{
m_size = QSize(gbm_bo_get_width(m_bo), gbm_bo_get_height(m_bo));
uint32_t handles[4] = { };
uint32_t strides[4] = { };
uint32_t offsets[4] = { };
uint64_t modifiers[4] = { };
if (gbm_bo_get_handle_for_plane(m_bo, 0).s32 != -1) {
for (int i = 0; i < gbm_bo_get_plane_count(m_bo); i++) {
handles[i] = gbm_bo_get_handle_for_plane(m_bo, i).u32;
strides[i] = gbm_bo_get_stride_for_plane(m_bo, i);
offsets[i] = gbm_bo_get_offset(m_bo, i);
modifiers[i] = gbm_bo_get_modifier(m_bo);
}
} else {
handles[0] = gbm_bo_get_format(m_bo);
strides[0] = gbm_bo_get_stride(m_bo);
modifiers[0] = DRM_FORMAT_MOD_INVALID;
}
if (modifiers[0] != DRM_FORMAT_MOD_INVALID) {
if (drmModeAddFB2WithModifiers(m_fd, m_size.width(), m_size.height(), gbm_bo_get_format(m_bo), handles, strides, offsets, modifiers, &m_bufferId, DRM_MODE_FB_MODIFIERS)) {
qCWarning(KWIN_DRM) << "drmModeAddFB2WithModifiers failed!" << strerror(errno);
}
} else {
if (drmModeAddFB2(m_fd, m_size.width(), m_size.height(), gbm_bo_get_format(m_bo), handles, strides, offsets, &m_bufferId, 0)) {
// fallback
if (drmModeAddFB(m_fd, m_size.width(), m_size.height(), 24, 32, strides[0], handles[0], &m_bufferId) != 0) {
qCWarning(KWIN_DRM) << "drmModeAddFB2 and drmModeAddFB both failed!" << strerror(errno);
}
}
}
gbm_bo_set_user_data(m_bo, this, nullptr);
}
} }

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

@ -57,6 +57,7 @@ private:
KWaylandServer::BufferInterface *m_bufferInterface = nullptr; KWaylandServer::BufferInterface *m_bufferInterface = nullptr;
void clearBufferInterface(); void clearBufferInterface();
void initialize();
}; };
} }