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/*
* Copyright 2009, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "PluginSurface.h"
#include "android_graphics.h"
#include "PluginWidgetAndroid.h"
#include "WebViewCore.h"
#include "jni_utility.h"
#include <ui/Rect.h>
#include <ui/Region.h>
#include <ui/Surface.h>
namespace android {
// jni field offset for the native surface pointer.
static jfieldID gSurfaceField;
static jmethodID gGetHolder;
static jmethodID gGetSurface;
static void initFields(JNIEnv* env) {
if (gSurfaceField)
return;
jclass clazz = env->FindClass("android/view/Surface");
gSurfaceField = env->GetFieldID(clazz, "mSurface", "I");
clazz = env->FindClass("android/view/SurfaceView");
gGetHolder = env->GetMethodID(clazz, "getHolder", "()Landroid/view/SurfaceHolder;");
clazz = env->FindClass("android/view/SurfaceHolder");
gGetSurface = env->GetMethodID(clazz, "getSurface", "()Landroid/view/Surface;");
}
static inline sp<Surface> getSurface(jobject view) {
if (!view) {
return NULL;
}
JNIEnv* env = JSC::Bindings::getJNIEnv();
initFields(env);
jobject holder = env->CallObjectMethod(view, gGetHolder);
jobject surface = env->CallObjectMethod(holder, gGetSurface);
return sp<Surface>((Surface*) env->GetIntField(surface, gSurfaceField));
}
static inline SkBitmap::Config convertPixelFormat(PixelFormat format) {
switch (format) {
case PIXEL_FORMAT_RGBA_8888: return SkBitmap::kARGB_8888_Config;
case PIXEL_FORMAT_RGBA_4444: return SkBitmap::kARGB_4444_Config;
case PIXEL_FORMAT_RGB_565: return SkBitmap::kRGB_565_Config;
case PIXEL_FORMAT_A_8: return SkBitmap::kA8_Config;
default: return SkBitmap::kNo_Config;
}
}
PluginSurface::PluginSurface(PluginWidgetAndroid* widget, bool isFixedSize)
: m_jSurfaceView(0)
, m_widget(widget) {
// Create our java SurfaceView.
jobject obj = widget->webViewCore()->createSurface(this, isFixedSize);
if (obj) {
JNIEnv* env = JSC::Bindings::getJNIEnv();
m_jSurfaceView = env->NewGlobalRef(obj);
env->DeleteLocalRef(obj);
}
}
void PluginSurface::attach(int x, int y, int width, int height) {
if (m_jSurfaceView) {
m_widget->webViewCore()->attachSurface(m_jSurfaceView, x, y, width,
height);
}
}
void PluginSurface::destroy() {
m_surface.clear();
if (m_jSurfaceView) {
m_widget->webViewCore()->destroySurface(m_jSurfaceView);
JNIEnv* env = JSC::Bindings::getJNIEnv();
env->DeleteGlobalRef(m_jSurfaceView);
m_jSurfaceView = 0;
}
}
bool PluginSurface::lock(SkIRect* dirty, SkBitmap* bitmap) {
if (!bitmap || !Surface::isValid(m_surface)) {
return false;
}
Region dirtyRegion;
if (dirty) {
Rect rect(dirty->fLeft, dirty->fTop, dirty->fRight, dirty->fBottom);
if (!rect.isEmpty()) {
dirtyRegion.set(rect);
}
} else {
dirtyRegion.set(Rect(0x3FFF, 0x3FFF));
}
Surface::SurfaceInfo info;
status_t err = m_surface->lock(&info, &dirtyRegion);
if (err < 0) {
return false;
}
ssize_t bpr = info.s * bytesPerPixel(info.format);
bitmap->setConfig(convertPixelFormat(info.format), info.w, info.h, bpr);
if (info.w > 0 && info.h > 0) {
bitmap->setPixels(info.bits);
} else {
bitmap->setPixels(NULL);
}
return true;
}
void PluginSurface::unlock() {
if (!Surface::isValid(m_surface)) {
return;
}
m_surface->unlockAndPost();
}
static void sendSurfaceEvent(PluginWidgetAndroid* widget,
ANPSurfaceAction action, int format = 0, int width = 0,
int height = 0) {
// format is currently not reported to the plugin. The plumbing from Java
// to C is still provided in case we add the format back to the event.
ANPEvent event;
SkANP::InitEvent(&event, kSurface_ANPEventType);
event.data.surface.action = action;
if (action == kChanged_ANPSurfaceAction) {
event.data.surface.data.changed.width = width;
event.data.surface.data.changed.height = height;
}
widget->sendEvent(event);
}
// SurfaceCallback methods
void PluginSurface::surfaceCreated() {
m_surface = getSurface(m_jSurfaceView);
// Not sure what values for format, width, and height should be here.
sendSurfaceEvent(m_widget, kCreated_ANPSurfaceAction);
}
void PluginSurface::surfaceChanged(int format, int width, int height) {
m_surface = getSurface(m_jSurfaceView);
sendSurfaceEvent(m_widget, kChanged_ANPSurfaceAction, format, width,
height);
}
void PluginSurface::surfaceDestroyed() {
m_surface = getSurface(m_jSurfaceView);
// Not sure what values for format, width, and height should be here.
sendSurfaceEvent(m_widget, kDestroyed_ANPSurfaceAction);
}
} // namespace android
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