1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/thebes/nsSurfaceTexture.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,247 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +// vim:set ts=2 sts=2 sw=2 et cin:
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifdef MOZ_WIDGET_ANDROID
1.11 +
1.12 +#include <set>
1.13 +#include <map>
1.14 +#include <android/log.h>
1.15 +#include "nsSurfaceTexture.h"
1.16 +#include "AndroidBridge.h"
1.17 +#include "nsThreadUtils.h"
1.18 +#include "mozilla/gfx/Matrix.h"
1.19 +
1.20 +using namespace mozilla;
1.21 +
1.22 +// UGH
1.23 +static std::map<int, nsSurfaceTexture*> sInstances;
1.24 +static int sNextID = 0;
1.25 +
1.26 +static class JNIFunctions {
1.27 +public:
1.28 +
1.29 + JNIFunctions() : mInitialized(false)
1.30 + {
1.31 + }
1.32 +
1.33 + bool EnsureInitialized()
1.34 + {
1.35 + if (mInitialized)
1.36 + return true;
1.37 +
1.38 + JNIEnv* env = GetJNIForThread();
1.39 +
1.40 + AutoLocalJNIFrame jniFrame(env);
1.41 +
1.42 + jSurfaceTextureClass = (jclass)env->NewGlobalRef(env->FindClass("android/graphics/SurfaceTexture"));
1.43 + jSurfaceTexture_Ctor = env->GetMethodID(jSurfaceTextureClass, "<init>", "(I)V");
1.44 + jSurfaceTexture_updateTexImage = env->GetMethodID(jSurfaceTextureClass, "updateTexImage", "()V");
1.45 + jSurfaceTexture_getTransformMatrix = env->GetMethodID(jSurfaceTextureClass, "getTransformMatrix", "([F)V");
1.46 +
1.47 + mInitialized = true;
1.48 + return true;
1.49 + }
1.50 +
1.51 + jobject CreateSurfaceTexture(GLuint aTexture)
1.52 + {
1.53 + if (!EnsureInitialized())
1.54 + return nullptr;
1.55 +
1.56 + JNIEnv* env = GetJNIForThread();
1.57 +
1.58 + AutoLocalJNIFrame jniFrame(env);
1.59 +
1.60 + return env->NewGlobalRef(env->NewObject(jSurfaceTextureClass, jSurfaceTexture_Ctor, (int) aTexture));
1.61 + }
1.62 +
1.63 + void ReleaseSurfaceTexture(jobject aSurfaceTexture)
1.64 + {
1.65 + JNIEnv* env = GetJNIForThread();
1.66 +
1.67 + env->DeleteGlobalRef(aSurfaceTexture);
1.68 + }
1.69 +
1.70 + void UpdateTexImage(jobject aSurfaceTexture)
1.71 + {
1.72 + JNIEnv* env = GetJNIForThread();
1.73 +
1.74 + AutoLocalJNIFrame jniFrame(env);
1.75 + env->CallVoidMethod(aSurfaceTexture, jSurfaceTexture_updateTexImage);
1.76 + }
1.77 +
1.78 + bool GetTransformMatrix(jobject aSurfaceTexture, gfx::Matrix4x4& aMatrix)
1.79 + {
1.80 + JNIEnv* env = GetJNIForThread();
1.81 +
1.82 + AutoLocalJNIFrame jniFrame(env);
1.83 +
1.84 + jfloatArray jarray = env->NewFloatArray(16);
1.85 + env->CallVoidMethod(aSurfaceTexture, jSurfaceTexture_getTransformMatrix, jarray);
1.86 +
1.87 + jfloat* array = env->GetFloatArrayElements(jarray, nullptr);
1.88 +
1.89 + aMatrix._11 = array[0];
1.90 + aMatrix._12 = array[1];
1.91 + aMatrix._13 = array[2];
1.92 + aMatrix._14 = array[3];
1.93 +
1.94 + aMatrix._21 = array[4];
1.95 + aMatrix._22 = array[5];
1.96 + aMatrix._23 = array[6];
1.97 + aMatrix._24 = array[7];
1.98 +
1.99 + aMatrix._31 = array[8];
1.100 + aMatrix._32 = array[9];
1.101 + aMatrix._33 = array[10];
1.102 + aMatrix._34 = array[11];
1.103 +
1.104 + aMatrix._41 = array[12];
1.105 + aMatrix._42 = array[13];
1.106 + aMatrix._43 = array[14];
1.107 + aMatrix._44 = array[15];
1.108 +
1.109 + env->ReleaseFloatArrayElements(jarray, array, 0);
1.110 +
1.111 + return false;
1.112 + }
1.113 +
1.114 +private:
1.115 + bool mInitialized;
1.116 +
1.117 + jclass jSurfaceTextureClass;
1.118 + jmethodID jSurfaceTexture_Ctor;
1.119 + jmethodID jSurfaceTexture_updateTexImage;
1.120 + jmethodID jSurfaceTexture_getTransformMatrix;
1.121 +
1.122 +} sJNIFunctions;
1.123 +
1.124 +nsSurfaceTexture*
1.125 +nsSurfaceTexture::Create(GLuint aTexture)
1.126 +{
1.127 + // Right now we only support creating this on the main thread because
1.128 + // of the JNIEnv assumptions in JNIHelper and elsewhere
1.129 + if (!NS_IsMainThread())
1.130 + return nullptr;
1.131 +
1.132 + nsSurfaceTexture* st = new nsSurfaceTexture();
1.133 + if (!st->Init(aTexture)) {
1.134 + printf_stderr("Failed to initialize nsSurfaceTexture");
1.135 + delete st;
1.136 + st = nullptr;
1.137 + }
1.138 +
1.139 + return st;
1.140 +}
1.141 +
1.142 +nsSurfaceTexture*
1.143 +nsSurfaceTexture::Find(int id)
1.144 +{
1.145 + std::map<int, nsSurfaceTexture*>::iterator it;
1.146 +
1.147 + it = sInstances.find(id);
1.148 + if (it == sInstances.end())
1.149 + return nullptr;
1.150 +
1.151 + return it->second;
1.152 +}
1.153 +
1.154 +bool
1.155 +nsSurfaceTexture::Check()
1.156 +{
1.157 + return sJNIFunctions.EnsureInitialized();
1.158 +}
1.159 +
1.160 +bool
1.161 +nsSurfaceTexture::Init(GLuint aTexture)
1.162 +{
1.163 + if (!sJNIFunctions.EnsureInitialized())
1.164 + return false;
1.165 +
1.166 + JNIEnv* env = GetJNIForThread();
1.167 +
1.168 + mSurfaceTexture = sJNIFunctions.CreateSurfaceTexture(aTexture);
1.169 + if (!mSurfaceTexture)
1.170 + return false;
1.171 +
1.172 + mNativeWindow = AndroidBridge::Bridge()->AcquireNativeWindowFromSurfaceTexture(env, mSurfaceTexture);
1.173 +
1.174 + mID = ++sNextID;
1.175 + sInstances.insert(std::pair<int, nsSurfaceTexture*>(mID, this));
1.176 +
1.177 + return true;
1.178 +}
1.179 +
1.180 +nsSurfaceTexture::nsSurfaceTexture()
1.181 + : mSurfaceTexture(nullptr), mNativeWindow(nullptr)
1.182 +{
1.183 +}
1.184 +
1.185 +nsSurfaceTexture::~nsSurfaceTexture()
1.186 +{
1.187 + sInstances.erase(mID);
1.188 +
1.189 + mFrameAvailableCallback = nullptr;
1.190 +
1.191 + if (mNativeWindow) {
1.192 + AndroidBridge::Bridge()->ReleaseNativeWindowForSurfaceTexture(mSurfaceTexture);
1.193 + mNativeWindow = nullptr;
1.194 + }
1.195 +
1.196 + JNIEnv* env = GetJNIForThread();
1.197 +
1.198 + if (mSurfaceTexture) {
1.199 + mozilla::widget::android::GeckoAppShell::UnregisterSurfaceTextureFrameListener(mSurfaceTexture);
1.200 +
1.201 + env->DeleteGlobalRef(mSurfaceTexture);
1.202 + mSurfaceTexture = nullptr;
1.203 + }
1.204 +}
1.205 +
1.206 +void*
1.207 +nsSurfaceTexture::GetNativeWindow()
1.208 +{
1.209 + return mNativeWindow;
1.210 +}
1.211 +
1.212 +void
1.213 +nsSurfaceTexture::UpdateTexImage()
1.214 +{
1.215 + sJNIFunctions.UpdateTexImage(mSurfaceTexture);
1.216 +}
1.217 +
1.218 +bool
1.219 +nsSurfaceTexture::GetTransformMatrix(gfx::Matrix4x4& aMatrix)
1.220 +{
1.221 + return sJNIFunctions.GetTransformMatrix(mSurfaceTexture, aMatrix);
1.222 +}
1.223 +
1.224 +void
1.225 +nsSurfaceTexture::SetFrameAvailableCallback(nsIRunnable* aRunnable)
1.226 +{
1.227 + if (aRunnable)
1.228 + mozilla::widget::android::GeckoAppShell::RegisterSurfaceTextureFrameListener(mSurfaceTexture, mID);
1.229 + else
1.230 + mozilla::widget::android::GeckoAppShell::UnregisterSurfaceTextureFrameListener(mSurfaceTexture);
1.231 +
1.232 + mFrameAvailableCallback = aRunnable;
1.233 +}
1.234 +
1.235 +void
1.236 +nsSurfaceTexture::NotifyFrameAvailable()
1.237 +{
1.238 + if (mFrameAvailableCallback) {
1.239 + // Proxy to main thread if we aren't on it
1.240 + if (!NS_IsMainThread()) {
1.241 + // Proxy to main thread
1.242 + nsCOMPtr<nsIRunnable> event = NS_NewRunnableMethod(this, &nsSurfaceTexture::NotifyFrameAvailable);
1.243 + NS_DispatchToCurrentThread(event);
1.244 + } else {
1.245 + mFrameAvailableCallback->Run();
1.246 + }
1.247 + }
1.248 +}
1.249 +
1.250 +#endif // MOZ_WIDGET_ANDROID
