yukijoou/kwin
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

core: Allow allocating linear gbm buffers with implicit modifier

Browse source
This commit is contained in:
Vlad Zahorodnii 2023-06-03 12:03:12 +03:00
parent f579b073c9
commit bdc14f247e
1 changed files with 36 additions and 22 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

58
src/core/gbmgraphicsbufferallocator.cpp
View file

@ -24,36 +24,50 @@ GbmGraphicsBufferAllocator::~GbmGraphicsBufferAllocator()
GbmGraphicsBuffer *GbmGraphicsBufferAllocator::allocate(const QSize &size, uint32_t format, const QVector<uint64_t> &modifiers)
{
gbm_bo *bo = nullptr;
if (!modifiers.isEmpty() && !(modifiers.size() == 1 && modifiers.first() == DRM_FORMAT_MOD_INVALID)) {
bo = gbm_bo_create_with_modifiers(m_gbmDevice,
size.width(),
size.height(),
format,
modifiers.constData(),
modifiers.size());
gbm_bo *bo = gbm_bo_create_with_modifiers(m_gbmDevice,
size.width(),
size.height(),
format,
modifiers.constData(),
modifiers.size());
if (bo) {
std::optional<DmaBufAttributes> attributes = dmaBufAttributesForBo(bo);
if (!attributes.has_value()) {
gbm_bo_destroy(bo);
return nullptr;
}
return new GbmGraphicsBuffer(std::move(attributes.value()), bo);
}
}
if (!bo) {
bo = gbm_bo_create(m_gbmDevice,
size.width(),
size.height(),
format,
GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
}
if (!bo) {
uint32_t flags = GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING;
if (modifiers.size() == 1 && modifiers.first() == DRM_FORMAT_MOD_LINEAR) {
flags |= GBM_BO_USE_LINEAR;
} else if (!modifiers.contains(DRM_FORMAT_MOD_INVALID)) {
return nullptr;
}
std::optional<DmaBufAttributes> attributes = dmaBufAttributesForBo(bo);
if (!attributes.has_value()) {
gbm_bo_destroy(bo);
return nullptr;
gbm_bo *bo = gbm_bo_create(m_gbmDevice,
size.width(),
size.height(),
format,
flags);
if (bo) {
std::optional<DmaBufAttributes> attributes = dmaBufAttributesForBo(bo);
if (!attributes.has_value()) {
gbm_bo_destroy(bo);
return nullptr;
}
if (flags & GBM_BO_USE_LINEAR) {
attributes->modifier = DRM_FORMAT_MOD_LINEAR;
} else {
attributes->modifier = DRM_FORMAT_MOD_INVALID;
}
return new GbmGraphicsBuffer(std::move(attributes.value()), bo);
}
return new GbmGraphicsBuffer(std::move(attributes.value()), bo);
return nullptr;
}
GbmGraphicsBuffer::GbmGraphicsBuffer(DmaBufAttributes attributes, gbm_bo *handle)