462 lines
13 KiB
C++
462 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/PixelFormat.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 <private/gui/SharedBufferStack.h>
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#include "DisplayHardware/FramebufferSurface.h"
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#include "DisplayHardware/DisplayHardwareBase.h"
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#include "DisplayHardware/HWComposer.h"
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#include "DisplayHardware.h"
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#include "GLExtensions.h"
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#include "SurfaceFlinger.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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static __attribute__((noinline))
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void checkEGLErrors(const char* token)
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{
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struct EGLUtils {
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static const char *strerror(EGLint err) {
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switch (err){
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case EGL_SUCCESS: return "EGL_SUCCESS";
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case EGL_NOT_INITIALIZED: return "EGL_NOT_INITIALIZED";
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case EGL_BAD_ACCESS: return "EGL_BAD_ACCESS";
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case EGL_BAD_ALLOC: return "EGL_BAD_ALLOC";
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case EGL_BAD_ATTRIBUTE: return "EGL_BAD_ATTRIBUTE";
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case EGL_BAD_CONFIG: return "EGL_BAD_CONFIG";
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case EGL_BAD_CONTEXT: return "EGL_BAD_CONTEXT";
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case EGL_BAD_CURRENT_SURFACE: return "EGL_BAD_CURRENT_SURFACE";
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case EGL_BAD_DISPLAY: return "EGL_BAD_DISPLAY";
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case EGL_BAD_MATCH: return "EGL_BAD_MATCH";
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case EGL_BAD_NATIVE_PIXMAP: return "EGL_BAD_NATIVE_PIXMAP";
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case EGL_BAD_NATIVE_WINDOW: return "EGL_BAD_NATIVE_WINDOW";
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case EGL_BAD_PARAMETER: return "EGL_BAD_PARAMETER";
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case EGL_BAD_SURFACE: return "EGL_BAD_SURFACE";
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case EGL_CONTEXT_LOST: return "EGL_CONTEXT_LOST";
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default: return "UNKNOWN";
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}
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}
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};
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EGLint error = eglGetError();
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if (error && error != EGL_SUCCESS) {
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ALOGE("%s: EGL error 0x%04x (%s)",
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token, int(error), EGLUtils::strerror(error));
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}
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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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DisplayHardware::DisplayHardware(
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const sp<SurfaceFlinger>& flinger,
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int display,
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const sp<SurfaceTextureClient>& surface,
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EGLConfig config)
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: DisplayHardwareBase(flinger, display),
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mFlinger(flinger),
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mDisplayId(display),
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mHwc(0),
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mNativeWindow(surface),
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mFlags(0),
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mSecureLayerVisible(false)
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{
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init(config);
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}
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DisplayHardware::~DisplayHardware() {
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}
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float DisplayHardware::getDpiX() const {
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return mDpiX;
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}
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float DisplayHardware::getDpiY() const {
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return mDpiY;
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}
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float DisplayHardware::getDensity() const {
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return mDensity;
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}
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float DisplayHardware::getRefreshRate() const {
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return mRefreshRate;
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}
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int DisplayHardware::getWidth() const {
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return mDisplayWidth;
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}
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int DisplayHardware::getHeight() const {
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return mDisplayHeight;
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}
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PixelFormat DisplayHardware::getFormat() const {
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return mFormat;
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}
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EGLSurface DisplayHardware::getEGLSurface() const {
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return mSurface;
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}
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void DisplayHardware::init(EGLConfig config)
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{
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ANativeWindow* const window = mNativeWindow.get();
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int concreteType;
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window->query(window, NATIVE_WINDOW_CONCRETE_TYPE, &concreteType);
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if (concreteType == NATIVE_WINDOW_FRAMEBUFFER) {
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mFramebufferSurface = static_cast<FramebufferSurface *>(mNativeWindow.get());
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}
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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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if (mFramebufferSurface != NULL) {
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mRefreshRate = mFramebufferSurface->getRefreshRate();
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} else {
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mRefreshRate = 60;
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}
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mRefreshPeriod = nsecs_t(1e9 / mRefreshRate);
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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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if (mFramebufferSurface != NULL) {
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if (mFramebufferSurface->isUpdateOnDemand()) {
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mFlags |= PARTIAL_UPDATES;
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// if we have partial updates, we definitely don't need to
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// preserve the backbuffer, which may be costly.
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eglSurfaceAttrib(display, surface,
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EGL_SWAP_BEHAVIOR, EGL_BUFFER_DESTROYED);
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}
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}
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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 H/W composer
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mHwc = new HWComposer(mFlinger, *this, mRefreshPeriod);
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if (mHwc->initCheck() == NO_ERROR) {
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mHwc->setFrameBuffer(mDisplay, mSurface);
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}
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// initialize the display orientation transform.
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// it's a constant that should come from the display driver.
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int displayOrientation = ISurfaceComposer::eOrientationDefault;
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char property[PROPERTY_VALUE_MAX];
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if (property_get("ro.sf.hwrotation", property, NULL) > 0) {
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//displayOrientation
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switch (atoi(property)) {
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case 90:
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displayOrientation = ISurfaceComposer::eOrientation90;
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break;
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case 270:
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displayOrientation = ISurfaceComposer::eOrientation270;
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break;
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}
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}
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w = mDisplayWidth;
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h = mDisplayHeight;
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DisplayHardware::orientationToTransfrom(displayOrientation, w, h,
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&mDisplayTransform);
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if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) {
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mLogicalDisplayWidth = h;
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mLogicalDisplayHeight = w;
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} else {
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mLogicalDisplayWidth = w;
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mLogicalDisplayHeight = h;
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}
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DisplayHardware::setOrientation(ISurfaceComposer::eOrientationDefault);
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// initialize the shared control block
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surface_flinger_cblk_t* const scblk = mFlinger->getControlBlock();
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scblk->connected |= 1 << mDisplayId;
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display_cblk_t* dcblk = &scblk->displays[mDisplayId];
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memset(dcblk, 0, sizeof(display_cblk_t));
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dcblk->w = w; // XXX: plane.getWidth();
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dcblk->h = h; // XXX: plane.getHeight();
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dcblk->format = format;
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dcblk->orientation = ISurfaceComposer::eOrientationDefault;
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dcblk->xdpi = mDpiX;
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dcblk->ydpi = mDpiY;
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dcblk->fps = mRefreshRate;
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dcblk->density = mDensity;
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}
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void DisplayHardware::setVSyncHandler(const sp<VSyncHandler>& handler) {
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Mutex::Autolock _l(mLock);
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mVSyncHandler = handler;
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}
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void DisplayHardware::eventControl(int event, int enabled) {
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if (event == EVENT_VSYNC) {
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mPowerHAL.vsyncHint(enabled);
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}
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mHwc->eventControl(event, enabled);
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}
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void DisplayHardware::onVSyncReceived(int dpy, nsecs_t timestamp) {
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sp<VSyncHandler> handler;
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{ // scope for the lock
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Mutex::Autolock _l(mLock);
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mLastHwVSync = timestamp;
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if (mVSyncHandler != NULL) {
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handler = mVSyncHandler.promote();
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}
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}
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if (handler != NULL) {
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handler->onVSyncReceived(dpy, timestamp);
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}
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}
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HWComposer& DisplayHardware::getHwComposer() const {
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return *mHwc;
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}
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void DisplayHardware::releaseScreen() const
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{
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DisplayHardwareBase::releaseScreen();
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if (mHwc->initCheck() == NO_ERROR) {
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mHwc->release();
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}
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}
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void DisplayHardware::acquireScreen() const
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{
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if (mHwc->initCheck() == NO_ERROR) {
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mHwc->acquire();
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}
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DisplayHardwareBase::acquireScreen();
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}
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uint32_t DisplayHardware::getPageFlipCount() const {
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return mPageFlipCount;
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}
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nsecs_t DisplayHardware::getRefreshTimestamp() const {
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// this returns the last refresh timestamp.
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// if the last one is not available, we estimate it based on
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// the refresh period and whatever closest timestamp we have.
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Mutex::Autolock _l(mLock);
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nsecs_t now = systemTime(CLOCK_MONOTONIC);
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return now - ((now - mLastHwVSync) % mRefreshPeriod);
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}
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nsecs_t DisplayHardware::getRefreshPeriod() const {
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return mRefreshPeriod;
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}
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status_t DisplayHardware::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 DisplayHardware::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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if (mFlags & PARTIAL_UPDATES) {
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if (mFramebufferSurface != NULL) {
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mFramebufferSurface->setUpdateRectangle(dirty.getBounds());
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}
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}
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mPageFlipCount++;
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if (mHwc->initCheck() == NO_ERROR) {
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mHwc->commit();
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} else {
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eglSwapBuffers(dpy, surface);
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}
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checkEGLErrors("eglSwapBuffers");
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}
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uint32_t DisplayHardware::getFlags() const
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{
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return mFlags;
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}
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void DisplayHardware::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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// ----------------------------------------------------------------------------
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void DisplayHardware::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> > DisplayHardware::getVisibleLayersSortedByZ() const {
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return mVisibleLayersSortedByZ;
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}
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bool DisplayHardware::getSecureLayerVisible() const {
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return mSecureLayerVisible;
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}
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// ----------------------------------------------------------------------------
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status_t DisplayHardware::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 ISurfaceComposer::eOrientationDefault:
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flags = Transform::ROT_0;
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break;
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case ISurfaceComposer::eOrientation90:
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flags = Transform::ROT_90;
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break;
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case ISurfaceComposer::eOrientation180:
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flags = Transform::ROT_180;
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break;
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case ISurfaceComposer::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 DisplayHardware::setOrientation(int orientation)
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{
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// If the rotation can be handled in hardware, this is where
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// the magic should happen.
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const int w = mLogicalDisplayWidth;
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const int h = mLogicalDisplayHeight;
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mUserDisplayWidth = w;
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mUserDisplayHeight = h;
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Transform orientationTransform;
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DisplayHardware::orientationToTransfrom(orientation, w, h,
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&orientationTransform);
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if (orientation & ISurfaceComposer::eOrientationSwapMask) {
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mUserDisplayWidth = h;
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mUserDisplayHeight = w;
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}
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mOrientation = orientation;
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mGlobalTransform = mDisplayTransform * orientationTransform;
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return NO_ERROR;
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}
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