class DisplayCompositorTest

Defined at line 170 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

Protected Members

uint64_t next_layer_id_

Loop display_coordinator_loop_

unique_ptr mock_display_coordinator_

shared_ptr renderer_

Inspector inspector_

shared_ptr display_compositor_

WireClient sysmem_allocator_

optional dispatcher_setter_

FakeFrameScheduler fake_frame_scheduler_

Public Methods

void SetUp ()

Defined at line 172 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

void TearDown ()

Defined at line 211 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

fidl::ClientEnd<fuchsia_sysmem2::BufferCollectionToken> CreateToken ()

Defined at line 232 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

void SetDisplaySupported (allocation::GlobalBufferCollectionId id, bool is_supported, std::optional<DisplayBufferCollectionMetadata> metadata)

Defined at line 248 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

void ForceRendererOnlyMode (bool force_renderer_only)

Defined at line 261 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

void SendOnVsyncEvent (display::WireConfigStamp stamp)

Defined at line 265 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

std::deque<DisplayCompositor::ApplyConfigInfo> GetPendingApplyConfigs ()

Defined at line 269 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

bool BufferCollectionSupportsDisplay (allocation::GlobalBufferCollectionId id)

Defined at line 273 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

bool HasDisplaySupportEntry (allocation::GlobalBufferCollectionId id)

Defined at line 278 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

bool TryDirectToDisplay (std::span<const RenderData> render_data_list)

Defined at line 283 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

void AddSyntheticRenderTarget (display::DisplayId display_id, const ImageMetadata & render_target)

Populates `display_engine_data_map_[display_id]` with a synthetic render target and wait

event so `PerformGpuComposition()` can run without going through `AddDisplay()` sysmem

allocation.

Defined at line 292 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

void ClearSyntheticRenderTargets (display::DisplayId display_id)

Clears the synthetic render target added by `AddSyntheticRenderTarget()`. Call before test

teardown so cleanup does not treat the synthetic render target as a real imported image.

Defined at line 313 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

fidl::ClientEnd<fuchsia_sysmem2::BufferCollectionToken> ImportDisplaySupportedClientCollection (allocation::GlobalBufferCollectionId collection_id, std::optional<DisplayCompositor::DisplayBufferCollectionMetadata> metadata)

Imports `collection_id` as a display-supported client buffer collection and returns the

renderer token to keep it alive for the duration of the test.

Defined at line 326 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

ResolvedLayer MakeImageLayer (const ImageMetadata & metadata)

Builds a full-image `ResolvedLayer` for `metadata`.

Defined at line 368 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

void AddDisplayWithExpectations (display::Display * display, const DisplayInfo & display_info)

`AddDisplay()` with the mock expectations it needs. Layer ids are 1 (the

empty-scene layer) through `kMaxDisplayLayersCount + 1`.

Defined at line 392 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

void ExpectDisplayCleanup ()

Expectations for the `DisplayCompositor` destructor after `AddDisplayWithExpectations()`.

Defined at line 409 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

ClientImageUsageCounts ReadClientImageUsageCounts ()

Defined at line 433 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

void ExpectSetDisplayPowerMode (fuchsia_hardware_display_types::PowerMode expected_mode, zx_status_t reply)

One `SetDisplayPowerMode()` call on the mock, replying `reply`. Set this up right

before each `DisplayCompositor::SetDisplayPowerMode()` call.

Defined at line 461 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

Protected Methods

bool RunPromise (fpromise::promise<> promise)

Defined at line 481 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

void HardwareFrameCorrectnessWithRotationTester (Orientation orientation, ImageFlip image_flip, fuchsia_math::wire::RectU expected_dst, display::WireCoordinateTransformation expected_transform)

The rotation and flip tests below share the following setup:

the layer draws a 128×256 image (full sample region) into a 10×20 destination rect

at the origin; each test below varies only the rotation/flip.

Defined at line 1592 of file ../../src/ui/scenic/lib/flatland/engine/tests/display_compositor_unittest.cc

Records

```
class ClientImageUsageCounts
```