329 lines
8.4 KiB
C++
329 lines
8.4 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/SurfaceTextureClient.h>
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#include <GLES/gl.h>
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <hardware/gralloc.h>
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#include "DisplayHardware/FramebufferSurface.h"
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#include "DisplayHardware/HWComposer.h"
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#include "DisplayDevice.h"
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#include "GLExtensions.h"
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#include "SurfaceFlinger.h"
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#include "LayerBase.h"
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// ----------------------------------------------------------------------------
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using namespace android;
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// ----------------------------------------------------------------------------
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static __attribute__((noinline))
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void checkGLErrors()
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{
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do {
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// there could be more than one error flag
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GLenum error = glGetError();
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if (error == GL_NO_ERROR)
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break;
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ALOGE("GL error 0x%04x", int(error));
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} while(true);
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}
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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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int display,
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const sp<ANativeWindow>& nativeWindow,
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const sp<FramebufferSurface>& framebufferSurface,
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EGLConfig config)
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: mFlinger(flinger),
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mId(display),
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mNativeWindow(nativeWindow),
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mFramebufferSurface(framebufferSurface),
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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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mDpiX(), mDpiY(),
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mDensity(),
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mDisplayWidth(), mDisplayHeight(), mFormat(),
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mFlags(),
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mPageFlipCount(),
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mSecureLayerVisible(false),
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mScreenAcquired(false),
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mOrientation(),
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mLayerStack(0)
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{
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init(config);
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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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bool DisplayDevice::isValid() const {
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return mFlinger != NULL;
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}
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float DisplayDevice::getDpiX() const {
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return mDpiX;
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}
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float DisplayDevice::getDpiY() const {
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return mDpiY;
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}
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float DisplayDevice::getDensity() const {
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return mDensity;
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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::init(EGLConfig config)
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{
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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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mDpiX = window->xdpi;
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mDpiY = window->ydpi;
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// TODO: Not sure if display density should handled by SF any longer
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class Density {
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static int getDensityFromProperty(char const* propName) {
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char property[PROPERTY_VALUE_MAX];
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int density = 0;
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if (property_get(propName, property, NULL) > 0) {
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density = atoi(property);
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}
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return density;
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}
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public:
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static int getEmuDensity() {
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return getDensityFromProperty("qemu.sf.lcd_density"); }
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static int getBuildDensity() {
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return getDensityFromProperty("ro.sf.lcd_density"); }
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};
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// The density of the device is provided by a build property
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mDensity = Density::getBuildDensity() / 160.0f;
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if (mDensity == 0) {
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// the build doesn't provide a density -- this is wrong!
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// use xdpi instead
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ALOGE("ro.sf.lcd_density must be defined as a build property");
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mDensity = mDpiX / 160.0f;
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}
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if (Density::getEmuDensity()) {
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// if "qemu.sf.lcd_density" is specified, it overrides everything
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mDpiX = mDpiY = mDensity = Density::getEmuDensity();
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mDensity /= 160.0f;
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}
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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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// initialize the display orientation transform.
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DisplayDevice::setOrientation(DisplayState::eOrientationDefault);
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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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if (mFramebufferSurface == NULL) {
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return NO_ERROR;
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}
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return mFramebufferSurface->compositionComplete();
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}
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void DisplayDevice::flip(const Region& dirty) const
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{
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checkGLErrors();
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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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uint32_t DisplayDevice::getFlags() const
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{
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return mFlags;
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}
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void DisplayDevice::dump(String8& res) const
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{
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if (mFramebufferSurface != NULL) {
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mFramebufferSurface->dump(res);
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}
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}
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void DisplayDevice::makeCurrent(const sp<const DisplayDevice>& hw, EGLContext ctx) {
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EGLSurface sur = eglGetCurrentSurface(EGL_DRAW);
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if (sur != hw->mSurface) {
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EGLDisplay dpy = eglGetCurrentDisplay();
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eglMakeCurrent(dpy, hw->mSurface, hw->mSurface, ctx);
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}
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}
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// ----------------------------------------------------------------------------
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void DisplayDevice::setVisibleLayersSortedByZ(const Vector< sp<LayerBase> >& layers) {
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mVisibleLayersSortedByZ = layers;
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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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if (layers[i]->isSecure()) {
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mSecureLayerVisible = true;
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}
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}
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}
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Vector< sp<LayerBase> > 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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// ----------------------------------------------------------------------------
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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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status_t DisplayDevice::setOrientation(int orientation) {
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int w = mDisplayWidth;
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int h = mDisplayHeight;
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DisplayDevice::orientationToTransfrom(
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orientation, w, h, &mGlobalTransform);
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if (orientation & DisplayState::eOrientationSwapMask) {
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int tmp = w;
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w = h;
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h = tmp;
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}
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mOrientation = orientation;
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dirtyRegion.set(bounds());
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return NO_ERROR;
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}
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