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435 lines
15 KiB
435 lines
15 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_DRM_HWC_TWO_H_
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#define ANDROID_DRM_HWC_TWO_H_
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#include <hardware/hwcomposer2.h>
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#include <math.h>
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#include <array>
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#include <map>
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#include "compositor/DrmDisplayCompositor.h"
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#include "compositor/Planner.h"
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#include "drm/DrmGenericImporter.h"
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#include "drm/ResourceManager.h"
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#include "drm/VSyncWorker.h"
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#include "drmhwcomposer.h"
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namespace android {
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class Backend;
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class DrmHwcTwo : public hwc2_device_t {
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public:
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static int HookDevOpen(const struct hw_module_t *module, const char *name,
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struct hw_device_t **dev);
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DrmHwcTwo();
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HWC2::Error Init();
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hwc2_callback_data_t hotplug_callback_data_ = NULL;
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HWC2_PFN_HOTPLUG hotplug_callback_hook_ = NULL;
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std::mutex hotplug_callback_lock;
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void SetHotplugCallback(hwc2_callback_data_t data,
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hwc2_function_pointer_t hook) {
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const std::lock_guard<std::mutex> lock(hotplug_callback_lock);
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hotplug_callback_data_ = data;
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hotplug_callback_hook_ = reinterpret_cast<HWC2_PFN_HOTPLUG>(hook);
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}
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class HwcLayer {
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public:
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HWC2::Composition sf_type() const {
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return sf_type_;
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}
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HWC2::Composition validated_type() const {
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return validated_type_;
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}
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void accept_type_change() {
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sf_type_ = validated_type_;
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}
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void set_validated_type(HWC2::Composition type) {
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validated_type_ = type;
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}
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bool type_changed() const {
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return sf_type_ != validated_type_;
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}
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uint32_t z_order() const {
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return z_order_;
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}
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buffer_handle_t buffer() {
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return buffer_;
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}
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void set_buffer(buffer_handle_t buffer) {
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buffer_ = buffer;
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}
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int take_acquire_fence() {
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return acquire_fence_.Release();
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}
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void set_acquire_fence(int acquire_fence) {
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acquire_fence_.Set(dup(acquire_fence));
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}
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int release_fence() {
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return release_fence_.get();
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}
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int take_release_fence() {
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return release_fence_.Release();
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}
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void manage_release_fence() {
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release_fence_.Set(release_fence_raw_);
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release_fence_raw_ = -1;
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}
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OutputFd release_fence_output() {
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return OutputFd(&release_fence_raw_);
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}
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hwc_rect_t display_frame() {
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return display_frame_;
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}
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void PopulateDrmLayer(DrmHwcLayer *layer);
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bool RequireScalingOrPhasing() {
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float src_width = source_crop_.right - source_crop_.left;
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float src_height = source_crop_.bottom - source_crop_.top;
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float dest_width = display_frame_.right - display_frame_.left;
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float dest_height = display_frame_.bottom - display_frame_.top;
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bool scaling = src_width != dest_width || src_height != dest_height;
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bool phasing = (source_crop_.left - floor(source_crop_.left) != 0) ||
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(source_crop_.top - floor(source_crop_.top) != 0);
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return scaling || phasing;
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}
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// Layer hooks
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HWC2::Error SetCursorPosition(int32_t x, int32_t y);
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HWC2::Error SetLayerBlendMode(int32_t mode);
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HWC2::Error SetLayerBuffer(buffer_handle_t buffer, int32_t acquire_fence);
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HWC2::Error SetLayerColor(hwc_color_t color);
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HWC2::Error SetLayerCompositionType(int32_t type);
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HWC2::Error SetLayerDataspace(int32_t dataspace);
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HWC2::Error SetLayerDisplayFrame(hwc_rect_t frame);
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HWC2::Error SetLayerPlaneAlpha(float alpha);
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HWC2::Error SetLayerSidebandStream(const native_handle_t *stream);
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HWC2::Error SetLayerSourceCrop(hwc_frect_t crop);
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HWC2::Error SetLayerSurfaceDamage(hwc_region_t damage);
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HWC2::Error SetLayerTransform(int32_t transform);
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HWC2::Error SetLayerVisibleRegion(hwc_region_t visible);
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HWC2::Error SetLayerZOrder(uint32_t z);
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private:
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// sf_type_ stores the initial type given to us by surfaceflinger,
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// validated_type_ stores the type after running ValidateDisplay
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HWC2::Composition sf_type_ = HWC2::Composition::Invalid;
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HWC2::Composition validated_type_ = HWC2::Composition::Invalid;
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HWC2::BlendMode blending_ = HWC2::BlendMode::None;
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buffer_handle_t buffer_ = NULL;
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UniqueFd acquire_fence_;
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int release_fence_raw_ = -1;
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UniqueFd release_fence_;
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hwc_rect_t display_frame_;
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float alpha_ = 1.0f;
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hwc_frect_t source_crop_;
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int32_t cursor_x_;
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int32_t cursor_y_;
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hwc_color_t layer_color_;
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HWC2::Transform transform_ = HWC2::Transform::None;
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uint32_t z_order_ = 0;
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android_dataspace_t dataspace_ = HAL_DATASPACE_UNKNOWN;
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};
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class HwcDisplay {
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public:
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HwcDisplay(ResourceManager *resource_manager, DrmDevice *drm,
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std::shared_ptr<Importer> importer, hwc2_display_t handle,
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HWC2::DisplayType type);
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HwcDisplay(const HwcDisplay &) = delete;
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HWC2::Error Init(std::vector<DrmPlane *> *planes);
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void RegisterVsyncCallback(hwc2_callback_data_t data,
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hwc2_function_pointer_t func);
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void RegisterRefreshCallback(hwc2_callback_data_t data,
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hwc2_function_pointer_t func);
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HWC2::Error CreateComposition(bool test);
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bool HardwareSupportsLayerType(HWC2::Composition comp_type);
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uint32_t CalcPixOps(std::map<uint32_t, DrmHwcTwo::HwcLayer *> &z_map,
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size_t first_z, size_t size);
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void MarkValidated(std::map<uint32_t, DrmHwcTwo::HwcLayer *> &z_map,
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size_t client_first_z, size_t client_size);
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void ClearDisplay();
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std::string Dump();
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// HWC Hooks
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HWC2::Error AcceptDisplayChanges();
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HWC2::Error CreateLayer(hwc2_layer_t *layer);
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HWC2::Error DestroyLayer(hwc2_layer_t layer);
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HWC2::Error GetActiveConfig(hwc2_config_t *config);
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HWC2::Error GetChangedCompositionTypes(uint32_t *num_elements,
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hwc2_layer_t *layers,
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int32_t *types);
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HWC2::Error GetClientTargetSupport(uint32_t width, uint32_t height,
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int32_t format, int32_t dataspace);
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HWC2::Error GetColorModes(uint32_t *num_modes, int32_t *modes);
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HWC2::Error GetDisplayAttribute(hwc2_config_t config, int32_t attribute,
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int32_t *value);
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HWC2::Error GetDisplayConfigs(uint32_t *num_configs,
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hwc2_config_t *configs);
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HWC2::Error GetDisplayName(uint32_t *size, char *name);
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HWC2::Error GetDisplayRequests(int32_t *display_requests,
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uint32_t *num_elements, hwc2_layer_t *layers,
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int32_t *layer_requests);
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HWC2::Error GetDisplayType(int32_t *type);
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#if PLATFORM_SDK_VERSION > 27
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HWC2::Error GetRenderIntents(int32_t mode, uint32_t *outNumIntents,
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int32_t *outIntents);
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HWC2::Error SetColorModeWithIntent(int32_t mode, int32_t intent);
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#endif
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#if PLATFORM_SDK_VERSION > 28
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HWC2::Error GetDisplayIdentificationData(uint8_t *outPort,
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uint32_t *outDataSize,
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uint8_t *outData);
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HWC2::Error GetDisplayCapabilities(uint32_t *outNumCapabilities,
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uint32_t *outCapabilities);
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HWC2::Error GetDisplayBrightnessSupport(bool *supported);
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HWC2::Error SetDisplayBrightness(float);
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#endif
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HWC2::Error GetDozeSupport(int32_t *support);
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HWC2::Error GetHdrCapabilities(uint32_t *num_types, int32_t *types,
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float *max_luminance,
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float *max_average_luminance,
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float *min_luminance);
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HWC2::Error GetReleaseFences(uint32_t *num_elements, hwc2_layer_t *layers,
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int32_t *fences);
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HWC2::Error PresentDisplay(int32_t *present_fence);
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HWC2::Error SetActiveConfig(hwc2_config_t config);
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HWC2::Error ChosePreferredConfig();
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HWC2::Error SetClientTarget(buffer_handle_t target, int32_t acquire_fence,
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int32_t dataspace, hwc_region_t damage);
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HWC2::Error SetColorMode(int32_t mode);
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HWC2::Error SetColorTransform(const float *matrix, int32_t hint);
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HWC2::Error SetOutputBuffer(buffer_handle_t buffer, int32_t release_fence);
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HWC2::Error SetPowerMode(int32_t mode);
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HWC2::Error SetVsyncEnabled(int32_t enabled);
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HWC2::Error ValidateDisplay(uint32_t *num_types, uint32_t *num_requests);
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HwcLayer *get_layer(hwc2_layer_t layer) {
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auto it = layers_.find(layer);
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if (it == layers_.end())
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return nullptr;
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return &it->second;
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}
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/* Statistics */
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struct Stats {
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Stats minus(Stats b) {
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return {total_frames_ - b.total_frames_,
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total_pixops_ - b.total_pixops_,
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gpu_pixops_ - b.gpu_pixops_,
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failed_kms_validate_ - b.failed_kms_validate_,
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failed_kms_present_ - b.failed_kms_present_,
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frames_flattened_ - b.frames_flattened_};
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}
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uint32_t total_frames_ = 0;
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uint64_t total_pixops_ = 0;
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uint64_t gpu_pixops_ = 0;
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uint32_t failed_kms_validate_ = 0;
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uint32_t failed_kms_present_ = 0;
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uint32_t frames_flattened_ = 0;
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};
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const Backend *backend() const {
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return backend_.get();
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}
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void set_backend(std::unique_ptr<Backend> backend) {
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backend_ = std::move(backend);
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}
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const std::vector<DrmPlane *> &primary_planes() const {
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return primary_planes_;
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}
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const std::vector<DrmPlane *> &overlay_planes() const {
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return overlay_planes_;
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}
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std::map<hwc2_layer_t, HwcLayer> &layers() {
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return layers_;
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}
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const DrmDisplayCompositor &compositor() const {
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return compositor_;
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}
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const DrmDevice *drm() const {
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return drm_;
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}
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const DrmConnector *connector() const {
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return connector_;
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}
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const std::shared_ptr<Importer> &importer() const {
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return importer_;
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}
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ResourceManager *resource_manager() const {
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return resource_manager_;
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}
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android_color_transform_t &color_transform_hint() {
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return color_transform_hint_;
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}
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Stats &total_stats() {
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return total_stats_;
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}
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private:
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void AddFenceToPresentFence(int fd);
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constexpr static size_t MATRIX_SIZE = 16;
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ResourceManager *resource_manager_;
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DrmDevice *drm_;
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DrmDisplayCompositor compositor_;
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std::shared_ptr<Importer> importer_;
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std::unique_ptr<Planner> planner_;
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std::vector<DrmPlane *> primary_planes_;
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std::vector<DrmPlane *> overlay_planes_;
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std::unique_ptr<Backend> backend_;
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VSyncWorker vsync_worker_;
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DrmConnector *connector_ = NULL;
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DrmCrtc *crtc_ = NULL;
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hwc2_display_t handle_;
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HWC2::DisplayType type_;
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uint32_t layer_idx_ = 0;
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std::map<hwc2_layer_t, HwcLayer> layers_;
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HwcLayer client_layer_;
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UniqueFd present_fence_;
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int32_t color_mode_;
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std::array<float, MATRIX_SIZE> color_transform_matrix_;
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android_color_transform_t color_transform_hint_;
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uint32_t frame_no_ = 0;
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Stats total_stats_;
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Stats prev_stats_;
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std::string DumpDelta(DrmHwcTwo::HwcDisplay::Stats delta);
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};
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class DrmHotplugHandler : public DrmEventHandler {
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public:
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DrmHotplugHandler(DrmHwcTwo *hwc2, DrmDevice *drm)
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: hwc2_(hwc2), drm_(drm) {
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}
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void HandleEvent(uint64_t timestamp_us);
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private:
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DrmHwcTwo *hwc2_;
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DrmDevice *drm_;
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};
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private:
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static DrmHwcTwo *toDrmHwcTwo(hwc2_device_t *dev) {
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return static_cast<DrmHwcTwo *>(dev);
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}
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template <typename PFN, typename T>
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static hwc2_function_pointer_t ToHook(T function) {
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static_assert(std::is_same<PFN, T>::value, "Incompatible fn pointer");
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return reinterpret_cast<hwc2_function_pointer_t>(function);
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}
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template <typename T, typename HookType, HookType func, typename... Args>
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static T DeviceHook(hwc2_device_t *dev, Args... args) {
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DrmHwcTwo *hwc = toDrmHwcTwo(dev);
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return static_cast<T>(((*hwc).*func)(std::forward<Args>(args)...));
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}
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static HwcDisplay *GetDisplay(DrmHwcTwo *hwc, hwc2_display_t display_handle) {
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auto it = hwc->displays_.find(display_handle);
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if (it == hwc->displays_.end())
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return nullptr;
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return &it->second;
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}
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template <typename HookType, HookType func, typename... Args>
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static int32_t DisplayHook(hwc2_device_t *dev, hwc2_display_t display_handle,
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Args... args) {
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HwcDisplay *display = GetDisplay(toDrmHwcTwo(dev), display_handle);
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if (!display)
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return static_cast<int32_t>(HWC2::Error::BadDisplay);
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return static_cast<int32_t>((display->*func)(std::forward<Args>(args)...));
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}
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template <typename HookType, HookType func, typename... Args>
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static int32_t LayerHook(hwc2_device_t *dev, hwc2_display_t display_handle,
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hwc2_layer_t layer_handle, Args... args) {
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HwcDisplay *display = GetDisplay(toDrmHwcTwo(dev), display_handle);
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if (!display)
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return static_cast<int32_t>(HWC2::Error::BadDisplay);
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HwcLayer *layer = display->get_layer(layer_handle);
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if (!layer)
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return static_cast<int32_t>(HWC2::Error::BadLayer);
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return static_cast<int32_t>((layer->*func)(std::forward<Args>(args)...));
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}
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// hwc2_device_t hooks
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static int HookDevClose(hw_device_t *dev);
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static void HookDevGetCapabilities(hwc2_device_t *dev, uint32_t *out_count,
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int32_t *out_capabilities);
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static hwc2_function_pointer_t HookDevGetFunction(struct hwc2_device *device,
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int32_t descriptor);
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// Device functions
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HWC2::Error CreateVirtualDisplay(uint32_t width, uint32_t height,
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int32_t *format, hwc2_display_t *display);
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HWC2::Error DestroyVirtualDisplay(hwc2_display_t display);
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void Dump(uint32_t *outSize, char *outBuffer);
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uint32_t GetMaxVirtualDisplayCount();
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HWC2::Error RegisterCallback(int32_t descriptor, hwc2_callback_data_t data,
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hwc2_function_pointer_t function);
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HWC2::Error CreateDisplay(hwc2_display_t displ, HWC2::DisplayType type);
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void HandleDisplayHotplug(hwc2_display_t displayid, int state);
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void HandleInitialHotplugState(DrmDevice *drmDevice);
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ResourceManager resource_manager_;
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std::map<hwc2_display_t, HwcDisplay> displays_;
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std::string mDumpString;
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};
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} // namespace android
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#endif
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