call into hwcomposer HAL when present (a350ff98) · Commits · e / os / android_frameworks_native

services/surfaceflinger/Android.mk

+1 −0

Original line number	Diff line number	Diff line
		@@ -5,6 +5,7 @@ LOCAL_SRC_FILES:= \
		clz.cpp.arm \
		DisplayHardware/DisplayHardware.cpp \
		DisplayHardware/DisplayHardwareBase.cpp \
		DisplayHardware/HWComposer.cpp \
		BlurFilter.cpp.arm \
		GLExtensions.cpp \
		Layer.cpp \

services/surfaceflinger/DisplayHardware/DisplayHardware.cpp

+19 −3

Original line number	Diff line number	Diff line
		@@ -36,11 +36,11 @@

		#include "DisplayHardware/DisplayHardware.h"

		#include <hardware/copybit.h>
		#include <hardware/overlay.h>
		#include <hardware/gralloc.h>

		#include "GLExtensions.h"
		#include "HWComposer.h"

		using namespace android;

		@@ -76,7 +76,7 @@ DisplayHardware::DisplayHardware(
		const sp<SurfaceFlinger>& flinger,
		uint32_t dpy)
		: DisplayHardwareBase(flinger, dpy),
		mFlags(0)
		mFlags(0), mHwc(0)
		{
		init(dpy);
		}
		@@ -262,6 +262,17 @@ void DisplayHardware::init(uint32_t dpy)

		// Unbind the context from this thread
		eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);


		// initialize the H/W composer
		mHwc = new HWComposer();
		if (mHwc->initCheck() == NO_ERROR) {
		mHwc->setFrameBuffer(mDisplay, mSurface);
		}
		}

		HWComposer& DisplayHardware::getHwComposer() const {
		return *mHwc;
		}

		/*
		@@ -317,7 +328,12 @@ void DisplayHardware::flip(const Region& dirty) const
		}

		mPageFlipCount++;

		if (mHwc->initCheck() == NO_ERROR) {
		mHwc->commit();
		} else {
		eglSwapBuffers(dpy, surface);
		}
		checkEGLErrors("eglSwapBuffers");

		// for debugging

services/surfaceflinger/DisplayHardware/DisplayHardware.h

+6 −2

Original line number	Diff line number	Diff line
		@@ -34,12 +34,11 @@
		#include "DisplayHardware/DisplayHardwareBase.h"

		struct overlay_control_device_t;
		struct framebuffer_device_t;
		struct copybit_image_t;

		namespace android {

		class FramebufferNativeWindow;
		class HWComposer;

		class DisplayHardware : public DisplayHardwareBase
		{
		@@ -81,6 +80,9 @@ public:
		EGLDisplay getEGLDisplay() const { return mDisplay; }
		overlay_control_device_t* getOverlayEngine() const { return mOverlayEngine; }

		// Hardware Composer
		HWComposer& getHwComposer() const;

		status_t compositionComplete() const;

		Rect bounds() const {
		@@ -107,6 +109,8 @@ private:
		GLint mMaxViewportDims;
		GLint mMaxTextureSize;

		HWComposer* mHwc;

		sp<FramebufferNativeWindow> mNativeWindow;
		overlay_control_device_t* mOverlayEngine;
		};

services/surfaceflinger/DisplayHardware/HWComposer.cpp

0 → 100644

+93 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2010 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.
		*/

		#include <stdint.h>
		#include <sys/types.h>

		#include <utils/Errors.h>

		#include <hardware/hardware.h>

		#include <cutils/log.h>

		#include <EGL/egl.h>

		#include "HWComposer.h"

		namespace android {
		// ---------------------------------------------------------------------------

		HWComposer::HWComposer()
		: mModule(0), mHwc(0), mList(0),
		mDpy(EGL_NO_DISPLAY), mSur(EGL_NO_SURFACE)
		{
		int err = hw_get_module(HWC_HARDWARE_MODULE_ID, &mModule);
		LOGW_IF(err, "%s module not found", HWC_HARDWARE_MODULE_ID);
		if (err == 0) {
		err = hwc_open(mModule, &mHwc);
		LOGE_IF(err, "%s device failed to initialize (%s)",
		HWC_HARDWARE_COMPOSER, strerror(-err));
		}
		}

		HWComposer::~HWComposer() {
		free(mList);
		if (mHwc) {
		hwc_close(mHwc);
		}
		}

		status_t HWComposer::initCheck() const {
		return mHwc ? NO_ERROR : NO_INIT;
		}

		void HWComposer::setFrameBuffer(EGLDisplay dpy, EGLSurface sur) {
		mDpy = (hwc_display_t)dpy;
		mSur = (hwc_surface_t)sur;
		}

		status_t HWComposer::createWorkList(size_t numLayers) {
		if (mHwc && (!mList \|\| mList->numHwLayers < numLayers)) {
		free(mList);
		size_t size = sizeof(hwc_layer_list) + numLayers*sizeof(hwc_layer_t);
		mList = (hwc_layer_list_t*)malloc(size);
		mList->flags = HWC_GEOMETRY_CHANGED;
		mList->numHwLayers = numLayers;
		}
		return NO_ERROR;
		}

		status_t HWComposer::prepare() const {
		int err = mHwc->prepare(mHwc, mList);
		return (status_t)err;
		}

		status_t HWComposer::commit() const {
		int err = mHwc->set(mHwc, mDpy, mSur, mList);
		mList->flags &= ~HWC_GEOMETRY_CHANGED;
		return (status_t)err;
		}

		HWComposer::iterator HWComposer::begin() {
		return mList ? &(mList->hwLayers[0]) : NULL;
		}

		HWComposer::iterator HWComposer::end() {
		return mList ? &(mList->hwLayers[mList->numHwLayers]) : NULL;
		}

		// ---------------------------------------------------------------------------
		}; // namespace android

services/surfaceflinger/DisplayHardware/HWComposer.h

0 → 100644

+70 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2010 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.
		*/

		#ifndef ANDROID_SF_HWCOMPOSER_H
		#define ANDROID_SF_HWCOMPOSER_H

		#include <stdint.h>
		#include <sys/types.h>

		#include <EGL/egl.h>

		#include <hardware/hwcomposer.h>

		namespace android {
		// ---------------------------------------------------------------------------

		class HWComposer
		{
		public:

		HWComposer();
		~HWComposer();

		status_t initCheck() const;

		// tells the HAL what the framebuffer is
		void setFrameBuffer(EGLDisplay dpy, EGLSurface sur);

		// create a work list for numLayers layer
		status_t createWorkList(size_t numLayers);

		// Asks the HAL what it can do
		status_t prepare() const;

		// commits the list
		status_t commit() const;


		typedef hwc_layer_t const * const_iterator;
		typedef hwc_layer_t* iterator;

		iterator begin();
		iterator end();

		private:
		hw_module_t const* mModule;
		hwc_composer_device_t* mHwc;
		hwc_layer_list_t* mList;
		hwc_display_t mDpy;
		hwc_surface_t mSur;
		};


		// ---------------------------------------------------------------------------
		}; // namespace android

		#endif // ANDROID_SF_HWCOMPOSER_H