38efe86d94
The previous implementation assumed that the HWC could read and write the same buffer on frames that involved both GLES and HWC composition. It turns out some hardware can't do this. The new implementation maintains a scratch buffer pool to use on these mixed frames, but on GLES-only or HWC-only frames still does composition directly into the output buffer. Bug: 8384764 Change-Id: I7a3addb34fad9bfcbdabbb8b635083e10223df69
445 lines
13 KiB
C++
445 lines
13 KiB
C++
/*
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* Copyright (C) 2007 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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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#include <cutils/properties.h>
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#include <utils/RefBase.h>
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#include <utils/Log.h>
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#include <ui/DisplayInfo.h>
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#include <ui/PixelFormat.h>
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#include <gui/Surface.h>
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#include <hardware/gralloc.h>
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#include "DisplayHardware/DisplaySurface.h"
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#include "DisplayHardware/HWComposer.h"
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#include "RenderEngine/RenderEngine.h"
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#include "clz.h"
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#include "DisplayDevice.h"
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#include "SurfaceFlinger.h"
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#include "Layer.h"
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// ----------------------------------------------------------------------------
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using namespace android;
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// ----------------------------------------------------------------------------
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/*
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* Initialize the display to the specified values.
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*
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*/
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DisplayDevice::DisplayDevice(
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const sp<SurfaceFlinger>& flinger,
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DisplayType type,
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int32_t hwcId,
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bool isSecure,
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const wp<IBinder>& displayToken,
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const sp<DisplaySurface>& displaySurface,
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EGLConfig config)
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: mFlinger(flinger),
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mType(type), mHwcDisplayId(hwcId),
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mDisplayToken(displayToken),
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mDisplaySurface(displaySurface),
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mDisplay(EGL_NO_DISPLAY),
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mSurface(EGL_NO_SURFACE),
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mContext(EGL_NO_CONTEXT),
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mDisplayWidth(), mDisplayHeight(), mFormat(),
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mFlags(),
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mPageFlipCount(),
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mIsSecure(isSecure),
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mSecureLayerVisible(false),
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mScreenAcquired(false),
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mLayerStack(NO_LAYER_STACK),
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mOrientation()
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{
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mNativeWindow = new Surface(mDisplaySurface->getIGraphicBufferProducer());
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ANativeWindow* const window = mNativeWindow.get();
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int format;
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window->query(window, NATIVE_WINDOW_FORMAT, &format);
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/*
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* Create our display's surface
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*/
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EGLSurface surface;
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EGLint w, h;
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EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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surface = eglCreateWindowSurface(display, config, window, NULL);
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eglQuerySurface(display, surface, EGL_WIDTH, &mDisplayWidth);
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eglQuerySurface(display, surface, EGL_HEIGHT, &mDisplayHeight);
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mDisplay = display;
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mSurface = surface;
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mFormat = format;
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mPageFlipCount = 0;
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mViewport.makeInvalid();
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mFrame.makeInvalid();
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// virtual displays are always considered enabled
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mScreenAcquired = (mType >= DisplayDevice::DISPLAY_VIRTUAL);
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// Name the display. The name will be replaced shortly if the display
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// was created with createDisplay().
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switch (mType) {
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case DISPLAY_PRIMARY:
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mDisplayName = "Built-in Screen";
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break;
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case DISPLAY_EXTERNAL:
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mDisplayName = "HDMI Screen";
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break;
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default:
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mDisplayName = "Virtual Screen"; // e.g. Overlay #n
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break;
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}
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// initialize the display orientation transform.
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setProjection(DisplayState::eOrientationDefault, mViewport, mFrame);
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}
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DisplayDevice::~DisplayDevice() {
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if (mSurface != EGL_NO_SURFACE) {
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eglDestroySurface(mDisplay, mSurface);
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mSurface = EGL_NO_SURFACE;
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}
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}
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void DisplayDevice::disconnect(HWComposer& hwc) {
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if (mHwcDisplayId >= 0) {
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hwc.disconnectDisplay(mHwcDisplayId);
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if (mHwcDisplayId >= DISPLAY_VIRTUAL)
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hwc.freeDisplayId(mHwcDisplayId);
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mHwcDisplayId = -1;
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}
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}
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bool DisplayDevice::isValid() const {
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return mFlinger != NULL;
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}
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int DisplayDevice::getWidth() const {
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return mDisplayWidth;
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}
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int DisplayDevice::getHeight() const {
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return mDisplayHeight;
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}
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PixelFormat DisplayDevice::getFormat() const {
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return mFormat;
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}
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EGLSurface DisplayDevice::getEGLSurface() const {
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return mSurface;
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}
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void DisplayDevice::setDisplayName(const String8& displayName) {
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if (!displayName.isEmpty()) {
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// never override the name with an empty name
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mDisplayName = displayName;
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}
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}
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uint32_t DisplayDevice::getPageFlipCount() const {
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return mPageFlipCount;
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}
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status_t DisplayDevice::compositionComplete() const {
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return mDisplaySurface->compositionComplete();
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}
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void DisplayDevice::flip(const Region& dirty) const
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{
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mFlinger->getRenderEngine().checkErrors();
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EGLDisplay dpy = mDisplay;
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EGLSurface surface = mSurface;
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#ifdef EGL_ANDROID_swap_rectangle
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if (mFlags & SWAP_RECTANGLE) {
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const Region newDirty(dirty.intersect(bounds()));
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const Rect b(newDirty.getBounds());
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eglSetSwapRectangleANDROID(dpy, surface,
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b.left, b.top, b.width(), b.height());
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}
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#endif
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mPageFlipCount++;
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}
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status_t DisplayDevice::prepareFrame(const HWComposer& hwc) const {
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DisplaySurface::CompositionType compositionType;
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bool haveGles = hwc.hasGlesComposition(mHwcDisplayId);
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bool haveHwc = hwc.hasHwcComposition(mHwcDisplayId);
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if (haveGles && haveHwc) {
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compositionType = DisplaySurface::COMPOSITION_MIXED;
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} else if (haveGles) {
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compositionType = DisplaySurface::COMPOSITION_GLES;
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} else if (haveHwc) {
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compositionType = DisplaySurface::COMPOSITION_HWC;
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} else {
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// Nothing to do -- when turning the screen off we get a frame like
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// this. Call it a HWC frame since we won't be doing any GLES work but
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// will do a prepare/set cycle.
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compositionType = DisplaySurface::COMPOSITION_HWC;
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}
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return mDisplaySurface->prepareFrame(compositionType);
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}
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void DisplayDevice::swapBuffers(HWComposer& hwc) const {
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// We need to call eglSwapBuffers() unless:
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// (a) there was no GLES composition this frame, or
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// (b) we're using a legacy HWC with no framebuffer target support (in
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// which case HWComposer::commit() handles things).
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if (hwc.initCheck() != NO_ERROR ||
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(hwc.hasGlesComposition(mHwcDisplayId) &&
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hwc.supportsFramebufferTarget())) {
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EGLBoolean success = eglSwapBuffers(mDisplay, mSurface);
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if (!success) {
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EGLint error = eglGetError();
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if (error == EGL_CONTEXT_LOST ||
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mType == DisplayDevice::DISPLAY_PRIMARY) {
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LOG_ALWAYS_FATAL("eglSwapBuffers(%p, %p) failed with 0x%08x",
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mDisplay, mSurface, error);
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} else {
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ALOGE("eglSwapBuffers(%p, %p) failed with 0x%08x",
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mDisplay, mSurface, error);
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}
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}
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}
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status_t result = mDisplaySurface->advanceFrame();
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if (result != NO_ERROR) {
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ALOGE("[%s] failed pushing new frame to HWC: %d",
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mDisplayName.string(), result);
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}
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}
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void DisplayDevice::onSwapBuffersCompleted(HWComposer& hwc) const {
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if (hwc.initCheck() == NO_ERROR) {
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mDisplaySurface->onFrameCommitted();
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}
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}
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uint32_t DisplayDevice::getFlags() const
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{
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return mFlags;
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}
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EGLBoolean DisplayDevice::makeCurrent(EGLDisplay dpy, EGLContext ctx) const {
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EGLBoolean result = EGL_TRUE;
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EGLSurface sur = eglGetCurrentSurface(EGL_DRAW);
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if (sur != mSurface) {
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result = eglMakeCurrent(dpy, mSurface, mSurface, ctx);
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if (result == EGL_TRUE) {
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setViewportAndProjection();
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}
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}
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return result;
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}
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void DisplayDevice::setViewportAndProjection() const {
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size_t w = mDisplayWidth;
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size_t h = mDisplayHeight;
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mFlinger->getRenderEngine().setViewportAndProjection(w, h);
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}
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// ----------------------------------------------------------------------------
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void DisplayDevice::setVisibleLayersSortedByZ(const Vector< sp<Layer> >& layers) {
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mVisibleLayersSortedByZ = layers;
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mSecureLayerVisible = false;
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size_t count = layers.size();
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for (size_t i=0 ; i<count ; i++) {
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const sp<Layer>& layer(layers[i]);
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if (layer->isSecure()) {
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mSecureLayerVisible = true;
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}
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}
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}
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const Vector< sp<Layer> >& DisplayDevice::getVisibleLayersSortedByZ() const {
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return mVisibleLayersSortedByZ;
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}
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bool DisplayDevice::getSecureLayerVisible() const {
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return mSecureLayerVisible;
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}
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Region DisplayDevice::getDirtyRegion(bool repaintEverything) const {
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Region dirty;
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if (repaintEverything) {
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dirty.set(getBounds());
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} else {
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const Transform& planeTransform(mGlobalTransform);
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dirty = planeTransform.transform(this->dirtyRegion);
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dirty.andSelf(getBounds());
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}
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return dirty;
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}
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// ----------------------------------------------------------------------------
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bool DisplayDevice::canDraw() const {
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return mScreenAcquired;
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}
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void DisplayDevice::releaseScreen() const {
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mScreenAcquired = false;
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}
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void DisplayDevice::acquireScreen() const {
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mScreenAcquired = true;
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}
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bool DisplayDevice::isScreenAcquired() const {
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return mScreenAcquired;
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}
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// ----------------------------------------------------------------------------
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void DisplayDevice::setLayerStack(uint32_t stack) {
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mLayerStack = stack;
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dirtyRegion.set(bounds());
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}
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// ----------------------------------------------------------------------------
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status_t DisplayDevice::orientationToTransfrom(
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int orientation, int w, int h, Transform* tr)
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{
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uint32_t flags = 0;
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switch (orientation) {
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case DisplayState::eOrientationDefault:
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flags = Transform::ROT_0;
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break;
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case DisplayState::eOrientation90:
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flags = Transform::ROT_90;
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break;
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case DisplayState::eOrientation180:
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flags = Transform::ROT_180;
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break;
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case DisplayState::eOrientation270:
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flags = Transform::ROT_270;
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break;
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default:
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return BAD_VALUE;
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}
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tr->set(flags, w, h);
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return NO_ERROR;
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}
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void DisplayDevice::setProjection(int orientation,
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const Rect& newViewport, const Rect& newFrame) {
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Rect viewport(newViewport);
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Rect frame(newFrame);
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const int w = mDisplayWidth;
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const int h = mDisplayHeight;
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Transform R;
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DisplayDevice::orientationToTransfrom(orientation, w, h, &R);
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if (!frame.isValid()) {
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// the destination frame can be invalid if it has never been set,
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// in that case we assume the whole display frame.
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frame = Rect(w, h);
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}
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if (viewport.isEmpty()) {
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// viewport can be invalid if it has never been set, in that case
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// we assume the whole display size.
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// it's also invalid to have an empty viewport, so we handle that
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// case in the same way.
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viewport = Rect(w, h);
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if (R.getOrientation() & Transform::ROT_90) {
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// viewport is always specified in the logical orientation
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// of the display (ie: post-rotation).
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swap(viewport.right, viewport.bottom);
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}
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}
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dirtyRegion.set(getBounds());
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Transform TL, TP, S;
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float src_width = viewport.width();
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float src_height = viewport.height();
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float dst_width = frame.width();
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float dst_height = frame.height();
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if (src_width != dst_width || src_height != dst_height) {
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float sx = dst_width / src_width;
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float sy = dst_height / src_height;
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S.set(sx, 0, 0, sy);
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}
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float src_x = viewport.left;
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float src_y = viewport.top;
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float dst_x = frame.left;
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float dst_y = frame.top;
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TL.set(-src_x, -src_y);
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TP.set(dst_x, dst_y);
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// The viewport and frame are both in the logical orientation.
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// Apply the logical translation, scale to physical size, apply the
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// physical translation and finally rotate to the physical orientation.
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mGlobalTransform = R * TP * S * TL;
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const uint8_t type = mGlobalTransform.getType();
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mNeedsFiltering = (!mGlobalTransform.preserveRects() ||
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(type >= Transform::SCALE));
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mScissor = mGlobalTransform.transform(viewport);
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if (mScissor.isEmpty()) {
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mScissor = getBounds();
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}
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mOrientation = orientation;
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mViewport = viewport;
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mFrame = frame;
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}
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void DisplayDevice::dump(String8& result) const {
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const Transform& tr(mGlobalTransform);
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result.appendFormat(
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"+ DisplayDevice: %s\n"
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" type=%x, hwcId=%d, layerStack=%u, (%4dx%4d), ANativeWindow=%p, orient=%2d (type=%08x), "
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"flips=%u, isSecure=%d, secureVis=%d, acquired=%d, numLayers=%u\n"
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" v:[%d,%d,%d,%d], f:[%d,%d,%d,%d], s:[%d,%d,%d,%d],"
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"transform:[[%0.3f,%0.3f,%0.3f][%0.3f,%0.3f,%0.3f][%0.3f,%0.3f,%0.3f]]\n",
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mDisplayName.string(), mType, mHwcDisplayId,
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mLayerStack, mDisplayWidth, mDisplayHeight, mNativeWindow.get(),
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mOrientation, tr.getType(), getPageFlipCount(),
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mIsSecure, mSecureLayerVisible, mScreenAcquired, mVisibleLayersSortedByZ.size(),
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mViewport.left, mViewport.top, mViewport.right, mViewport.bottom,
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mFrame.left, mFrame.top, mFrame.right, mFrame.bottom,
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mScissor.left, mScissor.top, mScissor.right, mScissor.bottom,
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tr[0][0], tr[1][0], tr[2][0],
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tr[0][1], tr[1][1], tr[2][1],
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tr[0][2], tr[1][2], tr[2][2]);
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String8 surfaceDump;
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mDisplaySurface->dump(surfaceDump);
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result.append(surfaceDump);
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}
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