1 files changed, 337 insertions, 0 deletions
diff --git a/libs/rs/rsContext.cpp b/libs/rs/rsContext.cpp
new file mode 100644
index 0000000..c466f46
--- /dev/null
+++ b/libs/rs/rsContext.cpp
@@ -0,0 +1,337 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#include "rsDevice.h"
+#include "rsContext.h"
+#include "rsThreadIO.h"
+#include "utils/String8.h"
+
+using namespace android;
+using namespace android::renderscript;
+
+Context * Context::gCon = NULL;
+
+void Context::initEGL()
+{
+    mNumConfigs = -1;
+
+    EGLint s_configAttribs[] = {
+         EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
+         EGL_RED_SIZE,       5,
+         EGL_GREEN_SIZE,     6,
+         EGL_BLUE_SIZE,      5,
+         EGL_DEPTH_SIZE,     16,
+         EGL_NONE
+     };
+
+     mDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+     eglInitialize(mDisplay, &mMajorVersion, &mMinorVersion);
+     eglChooseConfig(mDisplay, s_configAttribs, &mConfig, 1, &mNumConfigs);
+
+     if (mWndSurface) {
+         mSurface = eglCreateWindowSurface(mDisplay, mConfig,
+                 new EGLNativeWindowSurface(mWndSurface),
+                 NULL);
+     } else {
+         mSurface = eglCreateWindowSurface(mDisplay, mConfig,
+                 android_createDisplaySurface(),
+                 NULL);
+     }
+
+     mContext = eglCreateContext(mDisplay, mConfig, NULL, NULL);
+     eglMakeCurrent(mDisplay, mSurface, mSurface, mContext);
+     eglQuerySurface(mDisplay, mSurface, EGL_WIDTH, &mWidth);
+     eglQuerySurface(mDisplay, mSurface, EGL_HEIGHT, &mHeight);
+}
+
+bool Context::runScript(Script *s, uint32_t launchID)
+{
+    ObjectBaseRef<ProgramFragment> frag(mFragment);
+    ObjectBaseRef<ProgramVertex> vtx(mVertex);
+    ObjectBaseRef<ProgramFragmentStore> store(mFragmentStore);
+
+    bool ret = s->run(this, launchID);
+
+    mFragment.set(frag);
+    mVertex.set(vtx);
+    mFragmentStore.set(store);
+    return true;
+
+}
+
+
+bool Context::runRootScript()
+{
+    rsAssert(mRootScript->mEnviroment.mIsRoot);
+
+    glColor4f(1,1,1,1);
+    glEnable(GL_LIGHT0);
+    glViewport(0, 0, mWidth, mHeight);
+
+    glDepthMask(GL_TRUE);
+    glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+
+    glClearColor(mRootScript->mEnviroment.mClearColor[0],
+                 mRootScript->mEnviroment.mClearColor[1],
+                 mRootScript->mEnviroment.mClearColor[2],
+                 mRootScript->mEnviroment.mClearColor[3]);
+    glClearDepthf(mRootScript->mEnviroment.mClearDepth);
+    glClear(GL_COLOR_BUFFER_BIT);
+    glClear(GL_DEPTH_BUFFER_BIT);
+
+    return runScript(mRootScript.get(), 0);
+}
+
+void Context::setupCheck()
+{
+    if (mFragmentStore.get()) {
+        mFragmentStore->setupGL();
+    }
+    if (mFragment.get()) {
+        mFragment->setupGL();
+    }
+    if (mVertex.get()) {
+        mVertex->setupGL();
+    }
+
+}
+
+
+void * Context::threadProc(void *vrsc)
+{
+     Context *rsc = static_cast<Context *>(vrsc);
+
+     gIO = new ThreadIO();
+     rsc->mServerCommands.init(128);
+     rsc->mServerReturns.init(128);
+
+     rsc->initEGL();
+     rsc->mRunning = true;
+     bool mDraw = true;
+     while (!rsc->mExit) {
+         mDraw |= gIO->playCoreCommands(rsc);
+
+         if (!mDraw || !rsc->mRootScript.get()) {
+             usleep(10000);
+             continue;
+         }
+
+         if (rsc->mRootScript.get()) {
+             mDraw = rsc->runRootScript();
+             eglSwapBuffers(rsc->mDisplay, rsc->mSurface);
+         }
+     }
+
+     glClearColor(0,0,0,0);
+     glClear(GL_COLOR_BUFFER_BIT);
+     eglSwapBuffers(rsc->mDisplay, rsc->mSurface);
+     eglTerminate(rsc->mDisplay);
+     return NULL;
+}
+
+Context::Context(Device *dev, Surface *sur)
+{
+    dev->addContext(this);
+    mDev = dev;
+    mRunning = false;
+    mExit = false;
+
+    mServerCommands.init(256);
+    mServerReturns.init(256);
+
+    // see comment in header
+    gCon = this;
+
+    int status;
+    pthread_attr_t threadAttr;
+
+    status = pthread_attr_init(&threadAttr);
+    if (status) {
+        LOGE("Failed to init thread attribute.");
+        return;
+    }
+
+    sched_param sparam;
+    sparam.sched_priority = ANDROID_PRIORITY_DISPLAY;
+    pthread_attr_setschedparam(&threadAttr, &sparam);
+
+    LOGE("RS Launching thread");
+    status = pthread_create(&mThreadId, &threadAttr, threadProc, this);
+    if (status) {
+        LOGE("Failed to start rs context thread.");
+    }
+
+    mWndSurface = sur;
+    while(!mRunning) {
+        sleep(1);
+    }
+
+    pthread_attr_destroy(&threadAttr);
+}
+
+Context::~Context()
+{
+    mExit = true;
+    void *res;
+
+    int status = pthread_join(mThreadId, &res);
+
+    if (mDev) {
+        mDev->removeContext(this);
+    }
+}
+
+void Context::swapBuffers()
+{
+    eglSwapBuffers(mDisplay, mSurface);
+}
+
+void rsContextSwap(RsContext vrsc)
+{
+    Context *rsc = static_cast<Context *>(vrsc);
+    rsc->swapBuffers();
+}
+
+void Context::setRootScript(Script *s)
+{
+    mRootScript.set(s);
+}
+
+void Context::setFragmentStore(ProgramFragmentStore *pfs)
+{
+    mFragmentStore.set(pfs);
+    pfs->setupGL();
+}
+
+void Context::setFragment(ProgramFragment *pf)
+{
+    mFragment.set(pf);
+    pf->setupGL();
+}
+
+void Context::setVertex(ProgramVertex *pv)
+{
+    mVertex.set(pv);
+    pv->setupGL();
+}
+
+void Context::assignName(ObjectBase *obj, const char *name, uint32_t len)
+{
+    rsAssert(!obj->getName());
+    obj->setName(name, len);
+    mNames.add(obj);
+}
+
+void Context::removeName(ObjectBase *obj)
+{
+    for(size_t ct=0; ct < mNames.size(); ct++) {
+        if (obj == mNames[ct]) {
+            mNames.removeAt(ct);
+            return;
+        }
+    }
+}
+
+ObjectBase * Context::lookupName(const char *name) const
+{
+    for(size_t ct=0; ct < mNames.size(); ct++) {
+        if (!strcmp(name, mNames[ct]->getName())) {
+            return mNames[ct];
+        }
+    }
+    return NULL;
+}
+
+void Context::appendNameDefines(String8 *str) const
+{
+    char buf[256];
+    for (size_t ct=0; ct < mNames.size(); ct++) {
+        str->append("#define NAMED_");
+        str->append(mNames[ct]->getName());
+        str->append(" ");
+        sprintf(buf, "%i\n", (int)mNames[ct]);
+        str->append(buf);
+    }
+}
+
+
+///////////////////////////////////////////////////////////////////////////////////////////
+//
+
+namespace android {
+namespace renderscript {
+
+
+void rsi_ContextBindRootScript(Context *rsc, RsScript vs)
+{
+    Script *s = static_cast<Script *>(vs);
+    rsc->setRootScript(s);
+}
+
+void rsi_ContextBindSampler(Context *rsc, uint32_t slot, RsSampler vs)
+{
+    Sampler *s = static_cast<Sampler *>(vs);
+
+    if (slot > RS_MAX_SAMPLER_SLOT) {
+        LOGE("Invalid sampler slot");
+        return;
+    }
+
+    s->bindToContext(&rsc->mStateSampler, slot);
+}
+
+void rsi_ContextBindProgramFragmentStore(Context *rsc, RsProgramFragmentStore vpfs)
+{
+    ProgramFragmentStore *pfs = static_cast<ProgramFragmentStore *>(vpfs);
+    rsc->setFragmentStore(pfs);
+}
+
+void rsi_ContextBindProgramFragment(Context *rsc, RsProgramFragment vpf)
+{
+    ProgramFragment *pf = static_cast<ProgramFragment *>(vpf);
+    rsc->setFragment(pf);
+}
+
+void rsi_ContextBindProgramVertex(Context *rsc, RsProgramVertex vpv)
+{
+    ProgramVertex *pv = static_cast<ProgramVertex *>(vpv);
+    rsc->setVertex(pv);
+}
+
+void rsi_AssignName(Context *rsc, void * obj, const char *name, uint32_t len)
+{
+    ObjectBase *ob = static_cast<ObjectBase *>(obj);
+    rsc->assignName(ob, name, len);
+}
+
+
+}
+}
+
+
+RsContext rsContextCreate(RsDevice vdev, void *sur, uint32_t version)
+{
+    Device * dev = static_cast<Device *>(vdev);
+    Context *rsc = new Context(dev, (Surface *)sur);
+    return rsc;
+}
+
+void rsContextDestroy(RsContext vrsc)
+{
+    Context * rsc = static_cast<Context *>(vrsc);
+    delete rsc;
+}
+