auto import from //depot/cupcake/@135843
diff --git a/libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp b/libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp
new file mode 100644
index 0000000..f14d7e9
--- /dev/null
+++ b/libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp
@@ -0,0 +1,353 @@
+/*
+ * 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];
+ 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);
+}