ADHOC/replicant-frameworks_native
3
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
faeef8ede6
replicant-frameworks_native/libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp

359 lines
10 KiB
C++
Raw Blame History

/*
* Copyright (C) 2007 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.
*/
#define LOG_TAG "SurfaceFlinger"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <cutils/properties.h>
#include <utils/Log.h>
#include <ui/EGLDisplaySurface.h>
#include <GLES/gl.h>
#include <EGL/eglext.h>
#include "DisplayHardware/DisplayHardware.h"
#include <hardware/copybit.h>
#include <hardware/overlay.h>
using namespace android;
static __attribute__((noinline))
const char *egl_strerror(EGLint err)
{
switch (err){
case EGL_SUCCESS: return "EGL_SUCCESS";
case EGL_NOT_INITIALIZED: return "EGL_NOT_INITIALIZED";
case EGL_BAD_ACCESS: return "EGL_BAD_ACCESS";
case EGL_BAD_ALLOC: return "EGL_BAD_ALLOC";
case EGL_BAD_ATTRIBUTE: return "EGL_BAD_ATTRIBUTE";
case EGL_BAD_CONFIG: return "EGL_BAD_CONFIG";
case EGL_BAD_CONTEXT: return "EGL_BAD_CONTEXT";
case EGL_BAD_CURRENT_SURFACE: return "EGL_BAD_CURRENT_SURFACE";
case EGL_BAD_DISPLAY: return "EGL_BAD_DISPLAY";
case EGL_BAD_MATCH: return "EGL_BAD_MATCH";
case EGL_BAD_NATIVE_PIXMAP: return "EGL_BAD_NATIVE_PIXMAP";
case EGL_BAD_NATIVE_WINDOW: return "EGL_BAD_NATIVE_WINDOW";
case EGL_BAD_PARAMETER: return "EGL_BAD_PARAMETER";
case EGL_BAD_SURFACE: return "EGL_BAD_SURFACE";
case EGL_CONTEXT_LOST: return "EGL_CONTEXT_LOST";
default: return "UNKNOWN";
}
}
static __attribute__((noinline))
void checkGLErrors()
{
GLenum error = glGetError();
if (error != GL_NO_ERROR)
LOGE("GL error 0x%04x", int(error));
}
static __attribute__((noinline))
void checkEGLErrors(const char* token)
{
EGLint error = eglGetError();
// GLESonGL seems to be returning 0 when there is no errors?
if (error && error != EGL_SUCCESS)
LOGE("%s error 0x%04x (%s)",
token, int(error), egl_strerror(error));
}
/*
* Initialize the display to the specified values.
*
*/
DisplayHardware::DisplayHardware(
const sp<SurfaceFlinger>& flinger,
uint32_t dpy)
: DisplayHardwareBase(flinger, dpy)
{
init(dpy);
}
DisplayHardware::~DisplayHardware()
{
fini();
}
float DisplayHardware::getDpiX() const { return mDpiX; }
float DisplayHardware::getDpiY() const { return mDpiY; }
float DisplayHardware::getDensity() const { return mDensity; }
float DisplayHardware::getRefreshRate() const { return mRefreshRate; }
int DisplayHardware::getWidth() const { return mWidth; }
int DisplayHardware::getHeight() const { return mHeight; }
PixelFormat DisplayHardware::getFormat() const { return mFormat; }
void DisplayHardware::init(uint32_t dpy)
{
// initialize EGL
const EGLint attribs[] = {
EGL_RED_SIZE, 5,
EGL_GREEN_SIZE, 6,
EGL_BLUE_SIZE, 5,
EGL_DEPTH_SIZE, 0,
EGL_NONE
};
EGLint w, h, dummy;
EGLint numConfigs, n;
EGLConfig config;
EGLSurface surface;
EGLContext context;
mFlags = 0;
// TODO: all the extensions below should be queried through
// eglGetProcAddress().
EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
eglInitialize(display, NULL, NULL);
eglGetConfigs(display, NULL, 0, &numConfigs);
eglChooseConfig(display, attribs, &config, 1, &n);
/*
* Gather EGL extensions
*/
const char* const egl_extensions = eglQueryString(
display, EGL_EXTENSIONS);
LOGI("EGL informations:");
LOGI("# of configs : %d", numConfigs);
LOGI("vendor : %s", eglQueryString(display, EGL_VENDOR));
LOGI("version : %s", eglQueryString(display, EGL_VERSION));
LOGI("extensions: %s", egl_extensions);
LOGI("Client API: %s", eglQueryString(display, EGL_CLIENT_APIS)?:"Not Supported");
// TODO: get this from the devfb driver (probably should be HAL module)
mFlags |= SWAP_RECTANGLE_EXTENSION;
// TODO: get the real "update_on_demand" behavior (probably should be HAL module)
mFlags |= UPDATE_ON_DEMAND;
if (eglGetConfigAttrib(display, config, EGL_CONFIG_CAVEAT, &dummy) == EGL_TRUE) {
if (dummy == EGL_SLOW_CONFIG)
mFlags |= SLOW_CONFIG;
}
/*
* Create our main surface
*/
mDisplaySurface = new EGLDisplaySurface();
surface = eglCreateWindowSurface(display, config, mDisplaySurface.get(), NULL);
//checkEGLErrors("eglCreateDisplaySurfaceANDROID");
if (eglQuerySurface(display, surface, EGL_SWAP_BEHAVIOR, &dummy) == EGL_TRUE) {
if (dummy == EGL_BUFFER_PRESERVED) {
mFlags |= BUFFER_PRESERVED;
}
}
GLint value = EGL_UNKNOWN;
eglQuerySurface(display, surface, EGL_HORIZONTAL_RESOLUTION, &value);
if (value == EGL_UNKNOWN) {
mDpiX = 160.0f;
} else {
mDpiX = 25.4f * float(value)/EGL_DISPLAY_SCALING;
}
value = EGL_UNKNOWN;
eglQuerySurface(display, surface, EGL_VERTICAL_RESOLUTION, &value);
if (value == EGL_UNKNOWN) {
mDpiY = 160.0f;
} else {
mDpiY = 25.4f * float(value)/EGL_DISPLAY_SCALING;
}
mRefreshRate = 60.f; // TODO: get the real refresh rate
char property[PROPERTY_VALUE_MAX];
/* Read density from build-specific ro.sf.lcd_density property
* except if it is overriden by qemu.sf.lcd_density.
*/
if (property_get("qemu.sf.lcd_density", property, NULL) <= 0) {
if (property_get("ro.sf.lcd_density", property, NULL) <= 0) {
LOGW("ro.sf.lcd_density not defined, using 160 dpi by default.");
strcpy(property, "160");
}
}
mDensity = atoi(property) * (1.0f/160.0f);
/*
* Create our OpenGL ES context
*/
context = eglCreateContext(display, config, NULL, NULL);
//checkEGLErrors("eglCreateContext");
eglQuerySurface(display, surface, EGL_WIDTH, &mWidth);
eglQuerySurface(display, surface, EGL_HEIGHT, &mHeight);
/*
* Gather OpenGL ES extensions
*/
eglMakeCurrent(display, surface, surface, context);
const char* const gl_extensions = (const char*)glGetString(GL_EXTENSIONS);
LOGI("OpenGL informations:");
LOGI("vendor : %s", glGetString(GL_VENDOR));
LOGI("renderer : %s", glGetString(GL_RENDERER));
LOGI("version : %s", glGetString(GL_VERSION));
LOGI("extensions: %s", gl_extensions);
if (strstr(gl_extensions, "GL_ARB_texture_non_power_of_two")) {
mFlags |= NPOT_EXTENSION;
}
if (strstr(gl_extensions, "GL_OES_draw_texture")) {
mFlags |= DRAW_TEXTURE_EXTENSION;
}
if (strstr(gl_extensions, "GL_ANDROID_direct_texture")) {
mFlags |= DIRECT_TEXTURE;
}
// Unbind the context from this thread
eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
mDisplay = display;
mConfig = config;
mSurface = surface;
mContext = context;
mFormat = GGL_PIXEL_FORMAT_RGB_565;
hw_module_t const* module;
mBlitEngine = NULL;
if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &module) == 0) {
copybit_open(module, &mBlitEngine);
}
mOverlayEngine = NULL;
if (hw_get_module(OVERLAY_HARDWARE_MODULE_ID, &module) == 0) {
overlay_control_open(module, &mOverlayEngine);
}
}
/*
* Clean up. Throw out our local state.
*
* (It's entirely possible we'll never get here, since this is meant
* for real hardware, which doesn't restart.)
*/
void DisplayHardware::fini()
{
eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglTerminate(mDisplay);
copybit_close(mBlitEngine);
overlay_control_close(mOverlayEngine);
}
void DisplayHardware::releaseScreen() const
{
DisplayHardwareBase::releaseScreen();
}
void DisplayHardware::acquireScreen() const
{
DisplayHardwareBase::acquireScreen();
}
void DisplayHardware::getDisplaySurface(copybit_image_t* img) const
{
img->w = mDisplaySurface->stride;
img->h = mDisplaySurface->height;
img->format = mDisplaySurface->format;
img->offset = mDisplaySurface->offset;
img->base = (void*)mDisplaySurface->base;
img->fd = mDisplaySurface->fd;
}
void DisplayHardware::getDisplaySurface(GGLSurface* fb) const
{
fb->version= sizeof(GGLSurface);
fb->width = mDisplaySurface->width;
fb->height = mDisplaySurface->height;
fb->stride = mDisplaySurface->stride;
fb->format = mDisplaySurface->format;
fb->data = (GGLubyte*)mDisplaySurface->base + mDisplaySurface->offset;
}
uint32_t DisplayHardware::getPageFlipCount() const {
return mDisplaySurface->getPageFlipCount();
}
/*
* "Flip" the front and back buffers.
*/
void DisplayHardware::flip(const Region& dirty) const
{
checkGLErrors();
EGLDisplay dpy = mDisplay;
EGLSurface surface = mSurface;
Region newDirty(dirty);
newDirty.andSelf(Rect(mWidth, mHeight));
if (mFlags & BUFFER_PRESERVED) {
const Region copyback(mDirty.subtract(newDirty));
mDirty = newDirty;
mDisplaySurface->copyFrontToBack(copyback);
}
if (mFlags & SWAP_RECTANGLE_EXTENSION) {
const Rect& b(newDirty.bounds());
mDisplaySurface->setSwapRectangle(
b.left, b.top, b.width(), b.height());
}
eglSwapBuffers(dpy, surface);
checkEGLErrors("eglSwapBuffers");
// for debugging
//glClearColor(1,0,0,0);
//glClear(GL_COLOR_BUFFER_BIT);
}
uint32_t DisplayHardware::getFlags() const
{
return mFlags;
}
void DisplayHardware::makeCurrent() const
{
eglMakeCurrent(mDisplay, mSurface, mSurface, mContext);
}
void DisplayHardware::copyFrontToImage(const copybit_image_t& front) const {
mDisplaySurface->copyFrontToImage(front);
}
void DisplayHardware::copyBackToImage(const copybit_image_t& front) const {
mDisplaySurface->copyBackToImage(front);
}
Reference in New Issue View Git Blame Copy Permalink