drm_hwcomposer: Move hw_module related code out of DrmHwcTwo.* files
... to reduce complexity of DrmHwcTwo class.
Create "hwc2_device" directory that will be later used to fit
all frontend-related code.
Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
diff --git a/Android.bp b/Android.bp
index 4df2b07..aae6436 100644
--- a/Android.bp
+++ b/Android.bp
@@ -109,6 +109,8 @@
"backend/BackendClient.cpp",
"backend/BackendManager.cpp",
"backend/BackendRCarDu.cpp",
+
+ "hwc2_device/hwc2_device.cpp",
],
}
diff --git a/DrmHwcTwo.cpp b/DrmHwcTwo.cpp
index ad4936b..06c1909 100644
--- a/DrmHwcTwo.cpp
+++ b/DrmHwcTwo.cpp
@@ -38,13 +38,7 @@
namespace android {
-DrmHwcTwo::DrmHwcTwo() : hwc2_device() {
- common.tag = HARDWARE_DEVICE_TAG;
- common.version = HWC_DEVICE_API_VERSION_2_0;
- common.close = HookDevClose;
- getCapabilities = HookDevGetCapabilities;
- getFunction = HookDevGetFunction;
-}
+DrmHwcTwo::DrmHwcTwo() = default;
HWC2::Error DrmHwcTwo::CreateDisplay(hwc2_display_t displ,
HWC2::DisplayType type) {
@@ -1285,320 +1279,4 @@
}
}
-// static
-int DrmHwcTwo::HookDevClose(hw_device_t *dev) {
- // NOLINTNEXTLINE (cppcoreguidelines-pro-type-reinterpret-cast): Safe
- auto *hwc2_dev = reinterpret_cast<hwc2_device_t *>(dev);
- std::unique_ptr<DrmHwcTwo> ctx(toDrmHwcTwo(hwc2_dev));
- return 0;
-}
-
-// static
-void DrmHwcTwo::HookDevGetCapabilities(hwc2_device_t * /*dev*/,
- uint32_t *out_count,
- int32_t * /*out_capabilities*/) {
- *out_count = 0;
-}
-
-// static
-hwc2_function_pointer_t DrmHwcTwo::HookDevGetFunction(
- struct hwc2_device * /*dev*/, int32_t descriptor) {
- auto func = static_cast<HWC2::FunctionDescriptor>(descriptor);
- switch (func) {
- // Device functions
- case HWC2::FunctionDescriptor::CreateVirtualDisplay:
- return ToHook<HWC2_PFN_CREATE_VIRTUAL_DISPLAY>(
- DeviceHook<int32_t, decltype(&DrmHwcTwo::CreateVirtualDisplay),
- &DrmHwcTwo::CreateVirtualDisplay, uint32_t, uint32_t,
- int32_t *, hwc2_display_t *>);
- case HWC2::FunctionDescriptor::DestroyVirtualDisplay:
- return ToHook<HWC2_PFN_DESTROY_VIRTUAL_DISPLAY>(
- DeviceHook<int32_t, decltype(&DrmHwcTwo::DestroyVirtualDisplay),
- &DrmHwcTwo::DestroyVirtualDisplay, hwc2_display_t>);
- case HWC2::FunctionDescriptor::Dump:
- return ToHook<HWC2_PFN_DUMP>(
- DeviceHook<void, decltype(&DrmHwcTwo::Dump), &DrmHwcTwo::Dump,
- uint32_t *, char *>);
- case HWC2::FunctionDescriptor::GetMaxVirtualDisplayCount:
- return ToHook<HWC2_PFN_GET_MAX_VIRTUAL_DISPLAY_COUNT>(
- DeviceHook<uint32_t, decltype(&DrmHwcTwo::GetMaxVirtualDisplayCount),
- &DrmHwcTwo::GetMaxVirtualDisplayCount>);
- case HWC2::FunctionDescriptor::RegisterCallback:
- return ToHook<HWC2_PFN_REGISTER_CALLBACK>(
- DeviceHook<int32_t, decltype(&DrmHwcTwo::RegisterCallback),
- &DrmHwcTwo::RegisterCallback, int32_t,
- hwc2_callback_data_t, hwc2_function_pointer_t>);
-
- // Display functions
- case HWC2::FunctionDescriptor::AcceptDisplayChanges:
- return ToHook<HWC2_PFN_ACCEPT_DISPLAY_CHANGES>(
- DisplayHook<decltype(&HwcDisplay::AcceptDisplayChanges),
- &HwcDisplay::AcceptDisplayChanges>);
- case HWC2::FunctionDescriptor::CreateLayer:
- return ToHook<HWC2_PFN_CREATE_LAYER>(
- DisplayHook<decltype(&HwcDisplay::CreateLayer),
- &HwcDisplay::CreateLayer, hwc2_layer_t *>);
- case HWC2::FunctionDescriptor::DestroyLayer:
- return ToHook<HWC2_PFN_DESTROY_LAYER>(
- DisplayHook<decltype(&HwcDisplay::DestroyLayer),
- &HwcDisplay::DestroyLayer, hwc2_layer_t>);
- case HWC2::FunctionDescriptor::GetActiveConfig:
- return ToHook<HWC2_PFN_GET_ACTIVE_CONFIG>(
- DisplayHook<decltype(&HwcDisplay::GetActiveConfig),
- &HwcDisplay::GetActiveConfig, hwc2_config_t *>);
- case HWC2::FunctionDescriptor::GetChangedCompositionTypes:
- return ToHook<HWC2_PFN_GET_CHANGED_COMPOSITION_TYPES>(
- DisplayHook<decltype(&HwcDisplay::GetChangedCompositionTypes),
- &HwcDisplay::GetChangedCompositionTypes, uint32_t *,
- hwc2_layer_t *, int32_t *>);
- case HWC2::FunctionDescriptor::GetClientTargetSupport:
- return ToHook<HWC2_PFN_GET_CLIENT_TARGET_SUPPORT>(
- DisplayHook<decltype(&HwcDisplay::GetClientTargetSupport),
- &HwcDisplay::GetClientTargetSupport, uint32_t, uint32_t,
- int32_t, int32_t>);
- case HWC2::FunctionDescriptor::GetColorModes:
- return ToHook<HWC2_PFN_GET_COLOR_MODES>(
- DisplayHook<decltype(&HwcDisplay::GetColorModes),
- &HwcDisplay::GetColorModes, uint32_t *, int32_t *>);
- case HWC2::FunctionDescriptor::GetDisplayAttribute:
- return ToHook<HWC2_PFN_GET_DISPLAY_ATTRIBUTE>(
- DisplayHook<decltype(&HwcDisplay::GetDisplayAttribute),
- &HwcDisplay::GetDisplayAttribute, hwc2_config_t, int32_t,
- int32_t *>);
- case HWC2::FunctionDescriptor::GetDisplayConfigs:
- return ToHook<HWC2_PFN_GET_DISPLAY_CONFIGS>(
- DisplayHook<decltype(&HwcDisplay::GetDisplayConfigs),
- &HwcDisplay::GetDisplayConfigs, uint32_t *,
- hwc2_config_t *>);
- case HWC2::FunctionDescriptor::GetDisplayName:
- return ToHook<HWC2_PFN_GET_DISPLAY_NAME>(
- DisplayHook<decltype(&HwcDisplay::GetDisplayName),
- &HwcDisplay::GetDisplayName, uint32_t *, char *>);
- case HWC2::FunctionDescriptor::GetDisplayRequests:
- return ToHook<HWC2_PFN_GET_DISPLAY_REQUESTS>(
- DisplayHook<decltype(&HwcDisplay::GetDisplayRequests),
- &HwcDisplay::GetDisplayRequests, int32_t *, uint32_t *,
- hwc2_layer_t *, int32_t *>);
- case HWC2::FunctionDescriptor::GetDisplayType:
- return ToHook<HWC2_PFN_GET_DISPLAY_TYPE>(
- DisplayHook<decltype(&HwcDisplay::GetDisplayType),
- &HwcDisplay::GetDisplayType, int32_t *>);
- case HWC2::FunctionDescriptor::GetDozeSupport:
- return ToHook<HWC2_PFN_GET_DOZE_SUPPORT>(
- DisplayHook<decltype(&HwcDisplay::GetDozeSupport),
- &HwcDisplay::GetDozeSupport, int32_t *>);
- case HWC2::FunctionDescriptor::GetHdrCapabilities:
- return ToHook<HWC2_PFN_GET_HDR_CAPABILITIES>(
- DisplayHook<decltype(&HwcDisplay::GetHdrCapabilities),
- &HwcDisplay::GetHdrCapabilities, uint32_t *, int32_t *,
- float *, float *, float *>);
- case HWC2::FunctionDescriptor::GetReleaseFences:
- return ToHook<HWC2_PFN_GET_RELEASE_FENCES>(
- DisplayHook<decltype(&HwcDisplay::GetReleaseFences),
- &HwcDisplay::GetReleaseFences, uint32_t *, hwc2_layer_t *,
- int32_t *>);
- case HWC2::FunctionDescriptor::PresentDisplay:
- return ToHook<HWC2_PFN_PRESENT_DISPLAY>(
- DisplayHook<decltype(&HwcDisplay::PresentDisplay),
- &HwcDisplay::PresentDisplay, int32_t *>);
- case HWC2::FunctionDescriptor::SetActiveConfig:
- return ToHook<HWC2_PFN_SET_ACTIVE_CONFIG>(
- DisplayHook<decltype(&HwcDisplay::SetActiveConfig),
- &HwcDisplay::SetActiveConfig, hwc2_config_t>);
- case HWC2::FunctionDescriptor::SetClientTarget:
- return ToHook<HWC2_PFN_SET_CLIENT_TARGET>(
- DisplayHook<decltype(&HwcDisplay::SetClientTarget),
- &HwcDisplay::SetClientTarget, buffer_handle_t, int32_t,
- int32_t, hwc_region_t>);
- case HWC2::FunctionDescriptor::SetColorMode:
- return ToHook<HWC2_PFN_SET_COLOR_MODE>(
- DisplayHook<decltype(&HwcDisplay::SetColorMode),
- &HwcDisplay::SetColorMode, int32_t>);
- case HWC2::FunctionDescriptor::SetColorTransform:
- return ToHook<HWC2_PFN_SET_COLOR_TRANSFORM>(
- DisplayHook<decltype(&HwcDisplay::SetColorTransform),
- &HwcDisplay::SetColorTransform, const float *, int32_t>);
- case HWC2::FunctionDescriptor::SetOutputBuffer:
- return ToHook<HWC2_PFN_SET_OUTPUT_BUFFER>(
- DisplayHook<decltype(&HwcDisplay::SetOutputBuffer),
- &HwcDisplay::SetOutputBuffer, buffer_handle_t, int32_t>);
- case HWC2::FunctionDescriptor::SetPowerMode:
- return ToHook<HWC2_PFN_SET_POWER_MODE>(
- DisplayHook<decltype(&HwcDisplay::SetPowerMode),
- &HwcDisplay::SetPowerMode, int32_t>);
- case HWC2::FunctionDescriptor::SetVsyncEnabled:
- return ToHook<HWC2_PFN_SET_VSYNC_ENABLED>(
- DisplayHook<decltype(&HwcDisplay::SetVsyncEnabled),
- &HwcDisplay::SetVsyncEnabled, int32_t>);
- case HWC2::FunctionDescriptor::ValidateDisplay:
- return ToHook<HWC2_PFN_VALIDATE_DISPLAY>(
- DisplayHook<decltype(&HwcDisplay::ValidateDisplay),
- &HwcDisplay::ValidateDisplay, uint32_t *, uint32_t *>);
-#if PLATFORM_SDK_VERSION > 27
- case HWC2::FunctionDescriptor::GetRenderIntents:
- return ToHook<HWC2_PFN_GET_RENDER_INTENTS>(
- DisplayHook<decltype(&HwcDisplay::GetRenderIntents),
- &HwcDisplay::GetRenderIntents, int32_t, uint32_t *,
- int32_t *>);
- case HWC2::FunctionDescriptor::SetColorModeWithRenderIntent:
- return ToHook<HWC2_PFN_SET_COLOR_MODE_WITH_RENDER_INTENT>(
- DisplayHook<decltype(&HwcDisplay::SetColorModeWithIntent),
- &HwcDisplay::SetColorModeWithIntent, int32_t, int32_t>);
-#endif
-#if PLATFORM_SDK_VERSION > 28
- case HWC2::FunctionDescriptor::GetDisplayIdentificationData:
- return ToHook<HWC2_PFN_GET_DISPLAY_IDENTIFICATION_DATA>(
- DisplayHook<decltype(&HwcDisplay::GetDisplayIdentificationData),
- &HwcDisplay::GetDisplayIdentificationData, uint8_t *,
- uint32_t *, uint8_t *>);
- case HWC2::FunctionDescriptor::GetDisplayCapabilities:
- return ToHook<HWC2_PFN_GET_DISPLAY_CAPABILITIES>(
- DisplayHook<decltype(&HwcDisplay::GetDisplayCapabilities),
- &HwcDisplay::GetDisplayCapabilities, uint32_t *,
- uint32_t *>);
- case HWC2::FunctionDescriptor::GetDisplayBrightnessSupport:
- return ToHook<HWC2_PFN_GET_DISPLAY_BRIGHTNESS_SUPPORT>(
- DisplayHook<decltype(&HwcDisplay::GetDisplayBrightnessSupport),
- &HwcDisplay::GetDisplayBrightnessSupport, bool *>);
- case HWC2::FunctionDescriptor::SetDisplayBrightness:
- return ToHook<HWC2_PFN_SET_DISPLAY_BRIGHTNESS>(
- DisplayHook<decltype(&HwcDisplay::SetDisplayBrightness),
- &HwcDisplay::SetDisplayBrightness, float>);
-#endif /* PLATFORM_SDK_VERSION > 28 */
-#if PLATFORM_SDK_VERSION > 29
- case HWC2::FunctionDescriptor::GetDisplayConnectionType:
- return ToHook<HWC2_PFN_GET_DISPLAY_CONNECTION_TYPE>(
- DisplayHook<decltype(&HwcDisplay::GetDisplayConnectionType),
- &HwcDisplay::GetDisplayConnectionType, uint32_t *>);
- case HWC2::FunctionDescriptor::GetDisplayVsyncPeriod:
- return ToHook<HWC2_PFN_GET_DISPLAY_VSYNC_PERIOD>(
- DisplayHook<decltype(&HwcDisplay::GetDisplayVsyncPeriod),
- &HwcDisplay::GetDisplayVsyncPeriod,
- hwc2_vsync_period_t *>);
- case HWC2::FunctionDescriptor::SetActiveConfigWithConstraints:
- return ToHook<HWC2_PFN_SET_ACTIVE_CONFIG_WITH_CONSTRAINTS>(
- DisplayHook<decltype(&HwcDisplay::SetActiveConfigWithConstraints),
- &HwcDisplay::SetActiveConfigWithConstraints,
- hwc2_config_t, hwc_vsync_period_change_constraints_t *,
- hwc_vsync_period_change_timeline_t *>);
- case HWC2::FunctionDescriptor::SetAutoLowLatencyMode:
- return ToHook<HWC2_PFN_SET_AUTO_LOW_LATENCY_MODE>(
- DisplayHook<decltype(&HwcDisplay::SetAutoLowLatencyMode),
- &HwcDisplay::SetAutoLowLatencyMode, bool>);
- case HWC2::FunctionDescriptor::GetSupportedContentTypes:
- return ToHook<HWC2_PFN_GET_SUPPORTED_CONTENT_TYPES>(
- DisplayHook<decltype(&HwcDisplay::GetSupportedContentTypes),
- &HwcDisplay::GetSupportedContentTypes, uint32_t *,
- uint32_t *>);
- case HWC2::FunctionDescriptor::SetContentType:
- return ToHook<HWC2_PFN_SET_CONTENT_TYPE>(
- DisplayHook<decltype(&HwcDisplay::SetContentType),
- &HwcDisplay::SetContentType, int32_t>);
-#endif
- // Layer functions
- case HWC2::FunctionDescriptor::SetCursorPosition:
- return ToHook<HWC2_PFN_SET_CURSOR_POSITION>(
- LayerHook<decltype(&HwcLayer::SetCursorPosition),
- &HwcLayer::SetCursorPosition, int32_t, int32_t>);
- case HWC2::FunctionDescriptor::SetLayerBlendMode:
- return ToHook<HWC2_PFN_SET_LAYER_BLEND_MODE>(
- LayerHook<decltype(&HwcLayer::SetLayerBlendMode),
- &HwcLayer::SetLayerBlendMode, int32_t>);
- case HWC2::FunctionDescriptor::SetLayerBuffer:
- return ToHook<HWC2_PFN_SET_LAYER_BUFFER>(
- LayerHook<decltype(&HwcLayer::SetLayerBuffer),
- &HwcLayer::SetLayerBuffer, buffer_handle_t, int32_t>);
- case HWC2::FunctionDescriptor::SetLayerColor:
- return ToHook<HWC2_PFN_SET_LAYER_COLOR>(
- LayerHook<decltype(&HwcLayer::SetLayerColor),
- &HwcLayer::SetLayerColor, hwc_color_t>);
- case HWC2::FunctionDescriptor::SetLayerCompositionType:
- return ToHook<HWC2_PFN_SET_LAYER_COMPOSITION_TYPE>(
- LayerHook<decltype(&HwcLayer::SetLayerCompositionType),
- &HwcLayer::SetLayerCompositionType, int32_t>);
- case HWC2::FunctionDescriptor::SetLayerDataspace:
- return ToHook<HWC2_PFN_SET_LAYER_DATASPACE>(
- LayerHook<decltype(&HwcLayer::SetLayerDataspace),
- &HwcLayer::SetLayerDataspace, int32_t>);
- case HWC2::FunctionDescriptor::SetLayerDisplayFrame:
- return ToHook<HWC2_PFN_SET_LAYER_DISPLAY_FRAME>(
- LayerHook<decltype(&HwcLayer::SetLayerDisplayFrame),
- &HwcLayer::SetLayerDisplayFrame, hwc_rect_t>);
- case HWC2::FunctionDescriptor::SetLayerPlaneAlpha:
- return ToHook<HWC2_PFN_SET_LAYER_PLANE_ALPHA>(
- LayerHook<decltype(&HwcLayer::SetLayerPlaneAlpha),
- &HwcLayer::SetLayerPlaneAlpha, float>);
- case HWC2::FunctionDescriptor::SetLayerSidebandStream:
- return ToHook<HWC2_PFN_SET_LAYER_SIDEBAND_STREAM>(
- LayerHook<decltype(&HwcLayer::SetLayerSidebandStream),
- &HwcLayer::SetLayerSidebandStream,
- const native_handle_t *>);
- case HWC2::FunctionDescriptor::SetLayerSourceCrop:
- return ToHook<HWC2_PFN_SET_LAYER_SOURCE_CROP>(
- LayerHook<decltype(&HwcLayer::SetLayerSourceCrop),
- &HwcLayer::SetLayerSourceCrop, hwc_frect_t>);
- case HWC2::FunctionDescriptor::SetLayerSurfaceDamage:
- return ToHook<HWC2_PFN_SET_LAYER_SURFACE_DAMAGE>(
- LayerHook<decltype(&HwcLayer::SetLayerSurfaceDamage),
- &HwcLayer::SetLayerSurfaceDamage, hwc_region_t>);
- case HWC2::FunctionDescriptor::SetLayerTransform:
- return ToHook<HWC2_PFN_SET_LAYER_TRANSFORM>(
- LayerHook<decltype(&HwcLayer::SetLayerTransform),
- &HwcLayer::SetLayerTransform, int32_t>);
- case HWC2::FunctionDescriptor::SetLayerVisibleRegion:
- return ToHook<HWC2_PFN_SET_LAYER_VISIBLE_REGION>(
- LayerHook<decltype(&HwcLayer::SetLayerVisibleRegion),
- &HwcLayer::SetLayerVisibleRegion, hwc_region_t>);
- case HWC2::FunctionDescriptor::SetLayerZOrder:
- return ToHook<HWC2_PFN_SET_LAYER_Z_ORDER>(
- LayerHook<decltype(&HwcLayer::SetLayerZOrder),
- &HwcLayer::SetLayerZOrder, uint32_t>);
- case HWC2::FunctionDescriptor::Invalid:
- default:
- return nullptr;
- }
-}
-
-// static
-int DrmHwcTwo::HookDevOpen(const struct hw_module_t *module, const char *name,
- struct hw_device_t **dev) {
- if (strcmp(name, HWC_HARDWARE_COMPOSER) != 0) {
- ALOGE("Invalid module name- %s", name);
- return -EINVAL;
- }
-
- std::unique_ptr<DrmHwcTwo> ctx(new DrmHwcTwo());
- if (!ctx) {
- ALOGE("Failed to allocate DrmHwcTwo");
- return -ENOMEM;
- }
-
- HWC2::Error err = ctx->Init();
- if (err != HWC2::Error::None) {
- ALOGE("Failed to initialize DrmHwcTwo err=%d\n", err);
- return -EINVAL;
- }
-
- ctx->common.module = (hw_module_t *)module;
- *dev = &ctx.release()->common;
-
- return 0;
-}
} // namespace android
-
-// NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables)
-static struct hw_module_methods_t hwc2_module_methods = {
- .open = android::DrmHwcTwo::HookDevOpen,
-};
-
-// NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables)
-hw_module_t HAL_MODULE_INFO_SYM = {
- .tag = HARDWARE_MODULE_TAG,
- .module_api_version = HARDWARE_MODULE_API_VERSION(2, 0),
- .id = HWC_HARDWARE_MODULE_ID,
- .name = "DrmHwcTwo module",
- .author = "The Android Open Source Project",
- .methods = &hwc2_module_methods,
- .dso = nullptr,
- .reserved = {0},
-};
diff --git a/DrmHwcTwo.h b/DrmHwcTwo.h
index 0c5c7dd..5ba9ee1 100644
--- a/DrmHwcTwo.h
+++ b/DrmHwcTwo.h
@@ -33,11 +33,8 @@
class Backend;
-class DrmHwcTwo : public hwc2_device_t {
+class DrmHwcTwo {
public:
- static int HookDevOpen(const struct hw_module_t *module, const char *name,
- struct hw_device_t **dev);
-
DrmHwcTwo();
HWC2::Error Init();
@@ -372,23 +369,6 @@
std::string DumpDelta(DrmHwcTwo::HwcDisplay::Stats delta);
};
- private:
- static DrmHwcTwo *toDrmHwcTwo(hwc2_device_t *dev) {
- return static_cast<DrmHwcTwo *>(dev);
- }
-
- template <typename PFN, typename T>
- static hwc2_function_pointer_t ToHook(T function) {
- static_assert(std::is_same<PFN, T>::value, "Incompatible fn pointer");
- return reinterpret_cast<hwc2_function_pointer_t>(function);
- }
-
- template <typename T, typename HookType, HookType func, typename... Args>
- static T DeviceHook(hwc2_device_t *dev, Args... args) {
- DrmHwcTwo *hwc = toDrmHwcTwo(dev);
- return static_cast<T>(((*hwc).*func)(std::forward<Args>(args)...));
- }
-
static HwcDisplay *GetDisplay(DrmHwcTwo *hwc, hwc2_display_t display_handle) {
auto it = hwc->displays_.find(display_handle);
if (it == hwc->displays_.end())
@@ -397,37 +377,6 @@
return &it->second;
}
- template <typename HookType, HookType func, typename... Args>
- static int32_t DisplayHook(hwc2_device_t *dev, hwc2_display_t display_handle,
- Args... args) {
- HwcDisplay *display = GetDisplay(toDrmHwcTwo(dev), display_handle);
- if (!display)
- return static_cast<int32_t>(HWC2::Error::BadDisplay);
-
- return static_cast<int32_t>((display->*func)(std::forward<Args>(args)...));
- }
-
- template <typename HookType, HookType func, typename... Args>
- static int32_t LayerHook(hwc2_device_t *dev, hwc2_display_t display_handle,
- hwc2_layer_t layer_handle, Args... args) {
- HwcDisplay *display = GetDisplay(toDrmHwcTwo(dev), display_handle);
- if (!display)
- return static_cast<int32_t>(HWC2::Error::BadDisplay);
-
- HwcLayer *layer = display->get_layer(layer_handle);
- if (!layer)
- return static_cast<int32_t>(HWC2::Error::BadLayer);
-
- return static_cast<int32_t>((layer->*func)(std::forward<Args>(args)...));
- }
-
- // hwc2_device_t hooks
- static int HookDevClose(hw_device_t *dev);
- static void HookDevGetCapabilities(hwc2_device_t *dev, uint32_t *out_count,
- int32_t *out_capabilities);
- static hwc2_function_pointer_t HookDevGetFunction(struct hwc2_device *device,
- int32_t descriptor);
-
// Device functions
HWC2::Error CreateVirtualDisplay(uint32_t width, uint32_t height,
int32_t *format, hwc2_display_t *display);
@@ -437,6 +386,8 @@
HWC2::Error RegisterCallback(int32_t descriptor, hwc2_callback_data_t data,
hwc2_function_pointer_t function);
HWC2::Error CreateDisplay(hwc2_display_t displ, HWC2::DisplayType type);
+
+ private:
void HandleDisplayHotplug(hwc2_display_t displayid, int state);
void HandleInitialHotplugState(DrmDevice *drmDevice);
diff --git a/hwc2_device/hwc2_device.cpp b/hwc2_device/hwc2_device.cpp
new file mode 100644
index 0000000..24edda7
--- /dev/null
+++ b/hwc2_device/hwc2_device.cpp
@@ -0,0 +1,406 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "hwc2-device"
+
+#include "DrmHwcTwo.h"
+#include "backend/Backend.h"
+#include "utils/log.h"
+
+namespace android {
+
+struct Drmhwc2Device : hwc2_device {
+ DrmHwcTwo drmhwctwo;
+};
+
+static DrmHwcTwo *ToDrmHwcTwo(hwc2_device_t *dev) {
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-static-cast-downcast):
+ return &static_cast<Drmhwc2Device *>(dev)->drmhwctwo;
+}
+
+template <typename PFN, typename T>
+static hwc2_function_pointer_t ToHook(T function) {
+ static_assert(std::is_same<PFN, T>::value, "Incompatible fn pointer");
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast):
+ return reinterpret_cast<hwc2_function_pointer_t>(function);
+}
+
+template <typename T, typename HookType, HookType func, typename... Args>
+static T DeviceHook(hwc2_device_t *dev, Args... args) {
+ DrmHwcTwo *hwc = ToDrmHwcTwo(dev);
+ return static_cast<T>(((*hwc).*func)(std::forward<Args>(args)...));
+}
+
+template <typename HookType, HookType func, typename... Args>
+static int32_t DisplayHook(hwc2_device_t *dev, hwc2_display_t display_handle,
+ Args... args) {
+ DrmHwcTwo::HwcDisplay *display = DrmHwcTwo::GetDisplay(ToDrmHwcTwo(dev),
+ display_handle);
+ if (!display)
+ return static_cast<int32_t>(HWC2::Error::BadDisplay);
+
+ return static_cast<int32_t>((display->*func)(std::forward<Args>(args)...));
+}
+
+template <typename HookType, HookType func, typename... Args>
+static int32_t LayerHook(hwc2_device_t *dev, hwc2_display_t display_handle,
+ hwc2_layer_t layer_handle, Args... args) {
+ DrmHwcTwo::HwcDisplay *display = DrmHwcTwo::GetDisplay(ToDrmHwcTwo(dev),
+ display_handle);
+ if (!display)
+ return static_cast<int32_t>(HWC2::Error::BadDisplay);
+
+ DrmHwcTwo::HwcLayer *layer = display->get_layer(layer_handle);
+ if (!layer)
+ return static_cast<int32_t>(HWC2::Error::BadLayer);
+
+ return static_cast<int32_t>((layer->*func)(std::forward<Args>(args)...));
+}
+
+static int HookDevClose(hw_device_t *dev) {
+ // NOLINTNEXTLINE (cppcoreguidelines-pro-type-reinterpret-cast): Safe
+ auto *hwc2_dev = reinterpret_cast<hwc2_device_t *>(dev);
+ std::unique_ptr<DrmHwcTwo> ctx(ToDrmHwcTwo(hwc2_dev));
+ return 0;
+}
+
+static void HookDevGetCapabilities(hwc2_device_t * /*dev*/, uint32_t *out_count,
+ int32_t * /*out_capabilities*/) {
+ *out_count = 0;
+}
+
+static hwc2_function_pointer_t HookDevGetFunction(struct hwc2_device * /*dev*/,
+ int32_t descriptor) {
+ auto func = static_cast<HWC2::FunctionDescriptor>(descriptor);
+ switch (func) {
+ // Device functions
+ case HWC2::FunctionDescriptor::CreateVirtualDisplay:
+ return ToHook<HWC2_PFN_CREATE_VIRTUAL_DISPLAY>(
+ DeviceHook<int32_t, decltype(&DrmHwcTwo::CreateVirtualDisplay),
+ &DrmHwcTwo::CreateVirtualDisplay, uint32_t, uint32_t,
+ int32_t *, hwc2_display_t *>);
+ case HWC2::FunctionDescriptor::DestroyVirtualDisplay:
+ return ToHook<HWC2_PFN_DESTROY_VIRTUAL_DISPLAY>(
+ DeviceHook<int32_t, decltype(&DrmHwcTwo::DestroyVirtualDisplay),
+ &DrmHwcTwo::DestroyVirtualDisplay, hwc2_display_t>);
+ case HWC2::FunctionDescriptor::Dump:
+ return ToHook<HWC2_PFN_DUMP>(
+ DeviceHook<void, decltype(&DrmHwcTwo::Dump), &DrmHwcTwo::Dump,
+ uint32_t *, char *>);
+ case HWC2::FunctionDescriptor::GetMaxVirtualDisplayCount:
+ return ToHook<HWC2_PFN_GET_MAX_VIRTUAL_DISPLAY_COUNT>(
+ DeviceHook<uint32_t, decltype(&DrmHwcTwo::GetMaxVirtualDisplayCount),
+ &DrmHwcTwo::GetMaxVirtualDisplayCount>);
+ case HWC2::FunctionDescriptor::RegisterCallback:
+ return ToHook<HWC2_PFN_REGISTER_CALLBACK>(
+ DeviceHook<int32_t, decltype(&DrmHwcTwo::RegisterCallback),
+ &DrmHwcTwo::RegisterCallback, int32_t,
+ hwc2_callback_data_t, hwc2_function_pointer_t>);
+
+ // Display functions
+ case HWC2::FunctionDescriptor::AcceptDisplayChanges:
+ return ToHook<HWC2_PFN_ACCEPT_DISPLAY_CHANGES>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::AcceptDisplayChanges),
+ &DrmHwcTwo::HwcDisplay::AcceptDisplayChanges>);
+ case HWC2::FunctionDescriptor::CreateLayer:
+ return ToHook<HWC2_PFN_CREATE_LAYER>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::CreateLayer),
+ &DrmHwcTwo::HwcDisplay::CreateLayer, hwc2_layer_t *>);
+ case HWC2::FunctionDescriptor::DestroyLayer:
+ return ToHook<HWC2_PFN_DESTROY_LAYER>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::DestroyLayer),
+ &DrmHwcTwo::HwcDisplay::DestroyLayer, hwc2_layer_t>);
+ case HWC2::FunctionDescriptor::GetActiveConfig:
+ return ToHook<HWC2_PFN_GET_ACTIVE_CONFIG>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetActiveConfig),
+ &DrmHwcTwo::HwcDisplay::GetActiveConfig,
+ hwc2_config_t *>);
+ case HWC2::FunctionDescriptor::GetChangedCompositionTypes:
+ return ToHook<HWC2_PFN_GET_CHANGED_COMPOSITION_TYPES>(
+ DisplayHook<
+ decltype(&DrmHwcTwo::HwcDisplay::GetChangedCompositionTypes),
+ &DrmHwcTwo::HwcDisplay::GetChangedCompositionTypes, uint32_t *,
+ hwc2_layer_t *, int32_t *>);
+ case HWC2::FunctionDescriptor::GetClientTargetSupport:
+ return ToHook<HWC2_PFN_GET_CLIENT_TARGET_SUPPORT>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetClientTargetSupport),
+ &DrmHwcTwo::HwcDisplay::GetClientTargetSupport, uint32_t,
+ uint32_t, int32_t, int32_t>);
+ case HWC2::FunctionDescriptor::GetColorModes:
+ return ToHook<HWC2_PFN_GET_COLOR_MODES>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetColorModes),
+ &DrmHwcTwo::HwcDisplay::GetColorModes, uint32_t *,
+ int32_t *>);
+ case HWC2::FunctionDescriptor::GetDisplayAttribute:
+ return ToHook<HWC2_PFN_GET_DISPLAY_ATTRIBUTE>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetDisplayAttribute),
+ &DrmHwcTwo::HwcDisplay::GetDisplayAttribute,
+ hwc2_config_t, int32_t, int32_t *>);
+ case HWC2::FunctionDescriptor::GetDisplayConfigs:
+ return ToHook<HWC2_PFN_GET_DISPLAY_CONFIGS>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetDisplayConfigs),
+ &DrmHwcTwo::HwcDisplay::GetDisplayConfigs, uint32_t *,
+ hwc2_config_t *>);
+ case HWC2::FunctionDescriptor::GetDisplayName:
+ return ToHook<HWC2_PFN_GET_DISPLAY_NAME>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetDisplayName),
+ &DrmHwcTwo::HwcDisplay::GetDisplayName, uint32_t *,
+ char *>);
+ case HWC2::FunctionDescriptor::GetDisplayRequests:
+ return ToHook<HWC2_PFN_GET_DISPLAY_REQUESTS>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetDisplayRequests),
+ &DrmHwcTwo::HwcDisplay::GetDisplayRequests, int32_t *,
+ uint32_t *, hwc2_layer_t *, int32_t *>);
+ case HWC2::FunctionDescriptor::GetDisplayType:
+ return ToHook<HWC2_PFN_GET_DISPLAY_TYPE>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetDisplayType),
+ &DrmHwcTwo::HwcDisplay::GetDisplayType, int32_t *>);
+ case HWC2::FunctionDescriptor::GetDozeSupport:
+ return ToHook<HWC2_PFN_GET_DOZE_SUPPORT>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetDozeSupport),
+ &DrmHwcTwo::HwcDisplay::GetDozeSupport, int32_t *>);
+ case HWC2::FunctionDescriptor::GetHdrCapabilities:
+ return ToHook<HWC2_PFN_GET_HDR_CAPABILITIES>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetHdrCapabilities),
+ &DrmHwcTwo::HwcDisplay::GetHdrCapabilities, uint32_t *,
+ int32_t *, float *, float *, float *>);
+ case HWC2::FunctionDescriptor::GetReleaseFences:
+ return ToHook<HWC2_PFN_GET_RELEASE_FENCES>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetReleaseFences),
+ &DrmHwcTwo::HwcDisplay::GetReleaseFences, uint32_t *,
+ hwc2_layer_t *, int32_t *>);
+ case HWC2::FunctionDescriptor::PresentDisplay:
+ return ToHook<HWC2_PFN_PRESENT_DISPLAY>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::PresentDisplay),
+ &DrmHwcTwo::HwcDisplay::PresentDisplay, int32_t *>);
+ case HWC2::FunctionDescriptor::SetActiveConfig:
+ return ToHook<HWC2_PFN_SET_ACTIVE_CONFIG>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::SetActiveConfig),
+ &DrmHwcTwo::HwcDisplay::SetActiveConfig, hwc2_config_t>);
+ case HWC2::FunctionDescriptor::SetClientTarget:
+ return ToHook<HWC2_PFN_SET_CLIENT_TARGET>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::SetClientTarget),
+ &DrmHwcTwo::HwcDisplay::SetClientTarget, buffer_handle_t,
+ int32_t, int32_t, hwc_region_t>);
+ case HWC2::FunctionDescriptor::SetColorMode:
+ return ToHook<HWC2_PFN_SET_COLOR_MODE>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::SetColorMode),
+ &DrmHwcTwo::HwcDisplay::SetColorMode, int32_t>);
+ case HWC2::FunctionDescriptor::SetColorTransform:
+ return ToHook<HWC2_PFN_SET_COLOR_TRANSFORM>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::SetColorTransform),
+ &DrmHwcTwo::HwcDisplay::SetColorTransform, const float *,
+ int32_t>);
+ case HWC2::FunctionDescriptor::SetOutputBuffer:
+ return ToHook<HWC2_PFN_SET_OUTPUT_BUFFER>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::SetOutputBuffer),
+ &DrmHwcTwo::HwcDisplay::SetOutputBuffer, buffer_handle_t,
+ int32_t>);
+ case HWC2::FunctionDescriptor::SetPowerMode:
+ return ToHook<HWC2_PFN_SET_POWER_MODE>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::SetPowerMode),
+ &DrmHwcTwo::HwcDisplay::SetPowerMode, int32_t>);
+ case HWC2::FunctionDescriptor::SetVsyncEnabled:
+ return ToHook<HWC2_PFN_SET_VSYNC_ENABLED>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::SetVsyncEnabled),
+ &DrmHwcTwo::HwcDisplay::SetVsyncEnabled, int32_t>);
+ case HWC2::FunctionDescriptor::ValidateDisplay:
+ return ToHook<HWC2_PFN_VALIDATE_DISPLAY>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::ValidateDisplay),
+ &DrmHwcTwo::HwcDisplay::ValidateDisplay, uint32_t *,
+ uint32_t *>);
+#if PLATFORM_SDK_VERSION > 27
+ case HWC2::FunctionDescriptor::GetRenderIntents:
+ return ToHook<HWC2_PFN_GET_RENDER_INTENTS>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetRenderIntents),
+ &DrmHwcTwo::HwcDisplay::GetRenderIntents, int32_t,
+ uint32_t *, int32_t *>);
+ case HWC2::FunctionDescriptor::SetColorModeWithRenderIntent:
+ return ToHook<HWC2_PFN_SET_COLOR_MODE_WITH_RENDER_INTENT>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::SetColorModeWithIntent),
+ &DrmHwcTwo::HwcDisplay::SetColorModeWithIntent, int32_t,
+ int32_t>);
+#endif
+#if PLATFORM_SDK_VERSION > 28
+ case HWC2::FunctionDescriptor::GetDisplayIdentificationData:
+ return ToHook<HWC2_PFN_GET_DISPLAY_IDENTIFICATION_DATA>(
+ DisplayHook<
+ decltype(&DrmHwcTwo::HwcDisplay::GetDisplayIdentificationData),
+ &DrmHwcTwo::HwcDisplay::GetDisplayIdentificationData, uint8_t *,
+ uint32_t *, uint8_t *>);
+ case HWC2::FunctionDescriptor::GetDisplayCapabilities:
+ return ToHook<HWC2_PFN_GET_DISPLAY_CAPABILITIES>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetDisplayCapabilities),
+ &DrmHwcTwo::HwcDisplay::GetDisplayCapabilities,
+ uint32_t *, uint32_t *>);
+ case HWC2::FunctionDescriptor::GetDisplayBrightnessSupport:
+ return ToHook<HWC2_PFN_GET_DISPLAY_BRIGHTNESS_SUPPORT>(
+ DisplayHook<
+ decltype(&DrmHwcTwo::HwcDisplay::GetDisplayBrightnessSupport),
+ &DrmHwcTwo::HwcDisplay::GetDisplayBrightnessSupport, bool *>);
+ case HWC2::FunctionDescriptor::SetDisplayBrightness:
+ return ToHook<HWC2_PFN_SET_DISPLAY_BRIGHTNESS>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::SetDisplayBrightness),
+ &DrmHwcTwo::HwcDisplay::SetDisplayBrightness, float>);
+#endif /* PLATFORM_SDK_VERSION > 28 */
+#if PLATFORM_SDK_VERSION > 29
+ case HWC2::FunctionDescriptor::GetDisplayConnectionType:
+ return ToHook<HWC2_PFN_GET_DISPLAY_CONNECTION_TYPE>(
+ DisplayHook<
+ decltype(&DrmHwcTwo::HwcDisplay::GetDisplayConnectionType),
+ &DrmHwcTwo::HwcDisplay::GetDisplayConnectionType, uint32_t *>);
+ case HWC2::FunctionDescriptor::GetDisplayVsyncPeriod:
+ return ToHook<HWC2_PFN_GET_DISPLAY_VSYNC_PERIOD>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::GetDisplayVsyncPeriod),
+ &DrmHwcTwo::HwcDisplay::GetDisplayVsyncPeriod,
+ hwc2_vsync_period_t *>);
+ case HWC2::FunctionDescriptor::SetActiveConfigWithConstraints:
+ return ToHook<HWC2_PFN_SET_ACTIVE_CONFIG_WITH_CONSTRAINTS>(
+ DisplayHook<
+ decltype(&DrmHwcTwo::HwcDisplay::SetActiveConfigWithConstraints),
+ &DrmHwcTwo::HwcDisplay::SetActiveConfigWithConstraints,
+ hwc2_config_t, hwc_vsync_period_change_constraints_t *,
+ hwc_vsync_period_change_timeline_t *>);
+ case HWC2::FunctionDescriptor::SetAutoLowLatencyMode:
+ return ToHook<HWC2_PFN_SET_AUTO_LOW_LATENCY_MODE>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::SetAutoLowLatencyMode),
+ &DrmHwcTwo::HwcDisplay::SetAutoLowLatencyMode, bool>);
+ case HWC2::FunctionDescriptor::GetSupportedContentTypes:
+ return ToHook<HWC2_PFN_GET_SUPPORTED_CONTENT_TYPES>(
+ DisplayHook<
+ decltype(&DrmHwcTwo::HwcDisplay::GetSupportedContentTypes),
+ &DrmHwcTwo::HwcDisplay::GetSupportedContentTypes, uint32_t *,
+ uint32_t *>);
+ case HWC2::FunctionDescriptor::SetContentType:
+ return ToHook<HWC2_PFN_SET_CONTENT_TYPE>(
+ DisplayHook<decltype(&DrmHwcTwo::HwcDisplay::SetContentType),
+ &DrmHwcTwo::HwcDisplay::SetContentType, int32_t>);
+#endif
+ // Layer functions
+ case HWC2::FunctionDescriptor::SetCursorPosition:
+ return ToHook<HWC2_PFN_SET_CURSOR_POSITION>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetCursorPosition),
+ &DrmHwcTwo::HwcLayer::SetCursorPosition, int32_t, int32_t>);
+ case HWC2::FunctionDescriptor::SetLayerBlendMode:
+ return ToHook<HWC2_PFN_SET_LAYER_BLEND_MODE>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetLayerBlendMode),
+ &DrmHwcTwo::HwcLayer::SetLayerBlendMode, int32_t>);
+ case HWC2::FunctionDescriptor::SetLayerBuffer:
+ return ToHook<HWC2_PFN_SET_LAYER_BUFFER>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetLayerBuffer),
+ &DrmHwcTwo::HwcLayer::SetLayerBuffer, buffer_handle_t,
+ int32_t>);
+ case HWC2::FunctionDescriptor::SetLayerColor:
+ return ToHook<HWC2_PFN_SET_LAYER_COLOR>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetLayerColor),
+ &DrmHwcTwo::HwcLayer::SetLayerColor, hwc_color_t>);
+ case HWC2::FunctionDescriptor::SetLayerCompositionType:
+ return ToHook<HWC2_PFN_SET_LAYER_COMPOSITION_TYPE>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetLayerCompositionType),
+ &DrmHwcTwo::HwcLayer::SetLayerCompositionType, int32_t>);
+ case HWC2::FunctionDescriptor::SetLayerDataspace:
+ return ToHook<HWC2_PFN_SET_LAYER_DATASPACE>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetLayerDataspace),
+ &DrmHwcTwo::HwcLayer::SetLayerDataspace, int32_t>);
+ case HWC2::FunctionDescriptor::SetLayerDisplayFrame:
+ return ToHook<HWC2_PFN_SET_LAYER_DISPLAY_FRAME>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetLayerDisplayFrame),
+ &DrmHwcTwo::HwcLayer::SetLayerDisplayFrame, hwc_rect_t>);
+ case HWC2::FunctionDescriptor::SetLayerPlaneAlpha:
+ return ToHook<HWC2_PFN_SET_LAYER_PLANE_ALPHA>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetLayerPlaneAlpha),
+ &DrmHwcTwo::HwcLayer::SetLayerPlaneAlpha, float>);
+ case HWC2::FunctionDescriptor::SetLayerSidebandStream:
+ return ToHook<HWC2_PFN_SET_LAYER_SIDEBAND_STREAM>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetLayerSidebandStream),
+ &DrmHwcTwo::HwcLayer::SetLayerSidebandStream,
+ const native_handle_t *>);
+ case HWC2::FunctionDescriptor::SetLayerSourceCrop:
+ return ToHook<HWC2_PFN_SET_LAYER_SOURCE_CROP>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetLayerSourceCrop),
+ &DrmHwcTwo::HwcLayer::SetLayerSourceCrop, hwc_frect_t>);
+ case HWC2::FunctionDescriptor::SetLayerSurfaceDamage:
+ return ToHook<HWC2_PFN_SET_LAYER_SURFACE_DAMAGE>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetLayerSurfaceDamage),
+ &DrmHwcTwo::HwcLayer::SetLayerSurfaceDamage, hwc_region_t>);
+ case HWC2::FunctionDescriptor::SetLayerTransform:
+ return ToHook<HWC2_PFN_SET_LAYER_TRANSFORM>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetLayerTransform),
+ &DrmHwcTwo::HwcLayer::SetLayerTransform, int32_t>);
+ case HWC2::FunctionDescriptor::SetLayerVisibleRegion:
+ return ToHook<HWC2_PFN_SET_LAYER_VISIBLE_REGION>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetLayerVisibleRegion),
+ &DrmHwcTwo::HwcLayer::SetLayerVisibleRegion, hwc_region_t>);
+ case HWC2::FunctionDescriptor::SetLayerZOrder:
+ return ToHook<HWC2_PFN_SET_LAYER_Z_ORDER>(
+ LayerHook<decltype(&DrmHwcTwo::HwcLayer::SetLayerZOrder),
+ &DrmHwcTwo::HwcLayer::SetLayerZOrder, uint32_t>);
+ case HWC2::FunctionDescriptor::Invalid:
+ default:
+ return nullptr;
+ }
+}
+
+static int HookDevOpen(const struct hw_module_t *module, const char *name,
+ struct hw_device_t **dev) {
+ if (strcmp(name, HWC_HARDWARE_COMPOSER) != 0) {
+ ALOGE("Invalid module name- %s", name);
+ return -EINVAL;
+ }
+
+ auto ctx = std::make_unique<Drmhwc2Device>();
+ if (!ctx) {
+ ALOGE("Failed to allocate DrmHwcTwo");
+ return -ENOMEM;
+ }
+
+ ctx->common.tag = HARDWARE_DEVICE_TAG;
+ ctx->common.version = HWC_DEVICE_API_VERSION_2_0;
+ ctx->common.close = HookDevClose;
+ // NOLINTNEXTLINE(cppcoreguidelines-pro-type-cstyle-cast)
+ ctx->common.module = (hw_module_t *)module;
+ ctx->getCapabilities = HookDevGetCapabilities;
+ ctx->getFunction = HookDevGetFunction;
+
+ HWC2::Error err = ctx->drmhwctwo.Init();
+ if (err != HWC2::Error::None) {
+ ALOGE("Failed to initialize DrmHwcTwo err=%d\n", err);
+ return -EINVAL;
+ }
+
+ *dev = &ctx.release()->common;
+
+ return 0;
+}
+
+} // namespace android
+
+// NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables)
+static struct hw_module_methods_t hwc2_module_methods = {
+ .open = android::HookDevOpen,
+};
+
+// NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables)
+hw_module_t HAL_MODULE_INFO_SYM = {
+ .tag = HARDWARE_MODULE_TAG,
+ .module_api_version = HARDWARE_MODULE_API_VERSION(2, 0),
+ .id = HWC_HARDWARE_MODULE_ID,
+ .name = "DrmHwcTwo module",
+ .author = "The Android Open Source Project",
+ .methods = &hwc2_module_methods,
+ .dso = nullptr,
+ .reserved = {0},
+};