rsContext.cpp revision 2353ae303868d04e3a26002b2f2dc456c15e8170 
1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "rsDevice.h"
18#include "rsContext.h"
19#include "rsThreadIO.h"
20#include <ui/FramebufferNativeWindow.h>
21#include <ui/PixelFormat.h>
22#include <ui/EGLUtils.h>
23#include <ui/egl/android_natives.h>
24
25#include <sys/types.h>
26#include <sys/resource.h>
27#include <sched.h>
28
29#include <cutils/properties.h>
30
31#include <GLES/gl.h>
32#include <GLES/glext.h>
33#include <GLES2/gl2.h>
34#include <GLES2/gl2ext.h>
35
36#include <cutils/sched_policy.h>
37#include <sys/syscall.h>
38#include <string.h>
39
40using namespace android;
41using namespace android::renderscript;
42
43pthread_key_t Context::gThreadTLSKey = 0;
44uint32_t Context::gThreadTLSKeyCount = 0;
45uint32_t Context::gGLContextCount = 0;
46pthread_mutex_t Context::gInitMutex = PTHREAD_MUTEX_INITIALIZER;
47
48static void checkEglError(const char* op, EGLBoolean returnVal = EGL_TRUE) {
49    if (returnVal != EGL_TRUE) {
50        fprintf(stderr, "%s() returned %d\n", op, returnVal);
51    }
52
53    for (EGLint error = eglGetError(); error != EGL_SUCCESS; error
54            = eglGetError()) {
55        fprintf(stderr, "after %s() eglError %s (0x%x)\n", op, EGLUtils::strerror(error),
56                error);
57    }
58}
59
60void printEGLConfiguration(EGLDisplay dpy, EGLConfig config) {
61
62#define X(VAL) {VAL, #VAL}
63    struct {EGLint attribute; const char* name;} names[] = {
64    X(EGL_BUFFER_SIZE),
65    X(EGL_ALPHA_SIZE),
66    X(EGL_BLUE_SIZE),
67    X(EGL_GREEN_SIZE),
68    X(EGL_RED_SIZE),
69    X(EGL_DEPTH_SIZE),
70    X(EGL_STENCIL_SIZE),
71    X(EGL_CONFIG_CAVEAT),
72    X(EGL_CONFIG_ID),
73    X(EGL_LEVEL),
74    X(EGL_MAX_PBUFFER_HEIGHT),
75    X(EGL_MAX_PBUFFER_PIXELS),
76    X(EGL_MAX_PBUFFER_WIDTH),
77    X(EGL_NATIVE_RENDERABLE),
78    X(EGL_NATIVE_VISUAL_ID),
79    X(EGL_NATIVE_VISUAL_TYPE),
80    X(EGL_SAMPLES),
81    X(EGL_SAMPLE_BUFFERS),
82    X(EGL_SURFACE_TYPE),
83    X(EGL_TRANSPARENT_TYPE),
84    X(EGL_TRANSPARENT_RED_VALUE),
85    X(EGL_TRANSPARENT_GREEN_VALUE),
86    X(EGL_TRANSPARENT_BLUE_VALUE),
87    X(EGL_BIND_TO_TEXTURE_RGB),
88    X(EGL_BIND_TO_TEXTURE_RGBA),
89    X(EGL_MIN_SWAP_INTERVAL),
90    X(EGL_MAX_SWAP_INTERVAL),
91    X(EGL_LUMINANCE_SIZE),
92    X(EGL_ALPHA_MASK_SIZE),
93    X(EGL_COLOR_BUFFER_TYPE),
94    X(EGL_RENDERABLE_TYPE),
95    X(EGL_CONFORMANT),
96   };
97#undef X
98
99    for (size_t j = 0; j < sizeof(names) / sizeof(names[0]); j++) {
100        EGLint value = -1;
101        EGLint returnVal = eglGetConfigAttrib(dpy, config, names[j].attribute, &value);
102        EGLint error = eglGetError();
103        if (returnVal && error == EGL_SUCCESS) {
104            LOGV(" %s: %d (0x%x)", names[j].name, value, value);
105        }
106    }
107}
108
109
110void Context::initGLThread()
111{
112    pthread_mutex_lock(&gInitMutex);
113    LOGV("initGLThread start %p", this);
114
115    mEGL.mNumConfigs = -1;
116    EGLint configAttribs[128];
117    EGLint *configAttribsPtr = configAttribs;
118    EGLint context_attribs2[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
119
120    memset(configAttribs, 0, sizeof(configAttribs));
121
122    configAttribsPtr[0] = EGL_SURFACE_TYPE;
123    configAttribsPtr[1] = EGL_WINDOW_BIT;
124    configAttribsPtr += 2;
125
126    configAttribsPtr[0] = EGL_RENDERABLE_TYPE;
127    configAttribsPtr[1] = EGL_OPENGL_ES2_BIT;
128    configAttribsPtr += 2;
129
130    if (mUserSurfaceConfig.depthMin > 0) {
131        configAttribsPtr[0] = EGL_DEPTH_SIZE;
132        configAttribsPtr[1] = mUserSurfaceConfig.depthMin;
133        configAttribsPtr += 2;
134    }
135
136    if (mDev->mForceSW) {
137        configAttribsPtr[0] = EGL_CONFIG_CAVEAT;
138        configAttribsPtr[1] = EGL_SLOW_CONFIG;
139        configAttribsPtr += 2;
140    }
141
142    configAttribsPtr[0] = EGL_NONE;
143    rsAssert(configAttribsPtr < (configAttribs + (sizeof(configAttribs) / sizeof(EGLint))));
144
145    LOGV("%p initEGL start", this);
146    mEGL.mDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
147    checkEglError("eglGetDisplay");
148
149    eglInitialize(mEGL.mDisplay, &mEGL.mMajorVersion, &mEGL.mMinorVersion);
150    checkEglError("eglInitialize");
151
152#if 1
153    PixelFormat pf = PIXEL_FORMAT_RGBA_8888;
154    if (mUserSurfaceConfig.alphaMin == 0) {
155        pf = PIXEL_FORMAT_RGBX_8888;
156    }
157
158    status_t err = EGLUtils::selectConfigForPixelFormat(mEGL.mDisplay, configAttribs, pf, &mEGL.mConfig);
159    if (err) {
160       LOGE("%p, couldn't find an EGLConfig matching the screen format\n", this);
161    }
162    if (props.mLogVisual) {
163        printEGLConfiguration(mEGL.mDisplay, mEGL.mConfig);
164    }
165#else
166    eglChooseConfig(mEGL.mDisplay, configAttribs, &mEGL.mConfig, 1, &mEGL.mNumConfigs);
167#endif
168
169    mEGL.mContext = eglCreateContext(mEGL.mDisplay, mEGL.mConfig, EGL_NO_CONTEXT, context_attribs2);
170    checkEglError("eglCreateContext");
171    if (mEGL.mContext == EGL_NO_CONTEXT) {
172        LOGE("%p, eglCreateContext returned EGL_NO_CONTEXT", this);
173    }
174    gGLContextCount++;
175
176
177    EGLint pbuffer_attribs[] = { EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE };
178    mEGL.mSurfaceDefault = eglCreatePbufferSurface(mEGL.mDisplay, mEGL.mConfig, pbuffer_attribs);
179    checkEglError("eglCreatePbufferSurface");
180    if (mEGL.mSurfaceDefault == EGL_NO_SURFACE) {
181        LOGE("eglCreatePbufferSurface returned EGL_NO_SURFACE");
182    }
183
184    EGLBoolean ret = eglMakeCurrent(mEGL.mDisplay, mEGL.mSurfaceDefault, mEGL.mSurfaceDefault, mEGL.mContext);
185    checkEglError("eglMakeCurrent", ret);
186
187    mGL.mVersion = glGetString(GL_VERSION);
188    mGL.mVendor = glGetString(GL_VENDOR);
189    mGL.mRenderer = glGetString(GL_RENDERER);
190    mGL.mExtensions = glGetString(GL_EXTENSIONS);
191
192    //LOGV("EGL Version %i %i", mEGL.mMajorVersion, mEGL.mMinorVersion);
193    LOGV("GL Version %s", mGL.mVersion);
194    //LOGV("GL Vendor %s", mGL.mVendor);
195    LOGV("GL Renderer %s", mGL.mRenderer);
196    //LOGV("GL Extensions %s", mGL.mExtensions);
197
198    const char *verptr = NULL;
199    if (strlen((const char *)mGL.mVersion) > 9) {
200        if (!memcmp(mGL.mVersion, "OpenGL ES-CM", 12)) {
201            verptr = (const char *)mGL.mVersion + 12;
202        }
203        if (!memcmp(mGL.mVersion, "OpenGL ES ", 10)) {
204            verptr = (const char *)mGL.mVersion + 9;
205        }
206    }
207
208    if (!verptr) {
209        LOGE("Error, OpenGL ES Lite not supported");
210    } else {
211        sscanf(verptr, " %i.%i", &mGL.mMajorVersion, &mGL.mMinorVersion);
212    }
213
214    glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &mGL.mMaxVertexAttribs);
215    glGetIntegerv(GL_MAX_VERTEX_UNIFORM_VECTORS, &mGL.mMaxVertexUniformVectors);
216    glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &mGL.mMaxVertexTextureUnits);
217
218    glGetIntegerv(GL_MAX_VARYING_VECTORS, &mGL.mMaxVaryingVectors);
219    glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &mGL.mMaxTextureImageUnits);
220
221    glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &mGL.mMaxFragmentTextureImageUnits);
222    glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_VECTORS, &mGL.mMaxFragmentUniformVectors);
223
224    mGL.OES_texture_npot = NULL != strstr((const char *)mGL.mExtensions, "GL_OES_texture_npot");
225    mGL.EXT_texture_max_aniso = 1.0f;
226    bool hasAniso = NULL != strstr((const char *)mGL.mExtensions, "GL_EXT_texture_filter_anisotropic");
227    if(hasAniso) {
228        glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &mGL.EXT_texture_max_aniso);
229    }
230
231    LOGV("initGLThread end %p", this);
232    pthread_mutex_unlock(&gInitMutex);
233}
234
235void Context::deinitEGL()
236{
237    LOGV("%p, deinitEGL", this);
238
239    eglMakeCurrent(mEGL.mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, mEGL.mContext);
240    eglDestroyContext(mEGL.mDisplay, mEGL.mContext);
241    checkEglError("eglDestroyContext");
242
243    gGLContextCount--;
244    if (!gGLContextCount) {
245        eglTerminate(mEGL.mDisplay);
246    }
247}
248
249
250uint32_t Context::runScript(Script *s)
251{
252    ObjectBaseRef<ProgramFragment> frag(mFragment);
253    ObjectBaseRef<ProgramVertex> vtx(mVertex);
254    ObjectBaseRef<ProgramStore> store(mFragmentStore);
255    ObjectBaseRef<ProgramRaster> raster(mRaster);
256    ObjectBaseRef<Font> font(mFont);
257
258    uint32_t ret = s->run(this);
259
260    mFragment.set(frag);
261    mVertex.set(vtx);
262    mFragmentStore.set(store);
263    mRaster.set(raster);
264    mFont.set(font);
265    return ret;
266}
267
268void Context::checkError(const char *msg) const
269{
270    GLenum err = glGetError();
271    if (err != GL_NO_ERROR) {
272        LOGE("%p, GL Error, 0x%x, from %s", this, err, msg);
273    }
274}
275
276uint32_t Context::runRootScript()
277{
278    glViewport(0, 0, mWidth, mHeight);
279
280    timerSet(RS_TIMER_SCRIPT);
281    mStateFragmentStore.mLast.clear();
282    uint32_t ret = runScript(mRootScript.get());
283
284    checkError("runRootScript");
285    return ret;
286}
287
288uint64_t Context::getTime() const
289{
290    struct timespec t;
291    clock_gettime(CLOCK_MONOTONIC, &t);
292    return t.tv_nsec + ((uint64_t)t.tv_sec * 1000 * 1000 * 1000);
293}
294
295void Context::timerReset()
296{
297    for (int ct=0; ct < _RS_TIMER_TOTAL; ct++) {
298        mTimers[ct] = 0;
299    }
300}
301
302void Context::timerInit()
303{
304    mTimeLast = getTime();
305    mTimeFrame = mTimeLast;
306    mTimeLastFrame = mTimeLast;
307    mTimerActive = RS_TIMER_INTERNAL;
308    mAverageFPSFrameCount = 0;
309    mAverageFPSStartTime = mTimeLast;
310    mAverageFPS = 0;
311    timerReset();
312}
313
314void Context::timerFrame()
315{
316    mTimeLastFrame = mTimeFrame;
317    mTimeFrame = getTime();
318    // Update average fps
319    const uint64_t averageFramerateInterval = 1000 * 1000000;
320    mAverageFPSFrameCount ++;
321    uint64_t inverval = mTimeFrame - mAverageFPSStartTime;
322    if(inverval >= averageFramerateInterval) {
323        inverval = inverval / 1000000;
324        mAverageFPS = (mAverageFPSFrameCount * 1000) / inverval;
325        mAverageFPSFrameCount = 0;
326        mAverageFPSStartTime = mTimeFrame;
327    }
328}
329
330void Context::timerSet(Timers tm)
331{
332    uint64_t last = mTimeLast;
333    mTimeLast = getTime();
334    mTimers[mTimerActive] += mTimeLast - last;
335    mTimerActive = tm;
336}
337
338void Context::timerPrint()
339{
340    double total = 0;
341    for (int ct = 0; ct < _RS_TIMER_TOTAL; ct++) {
342        total += mTimers[ct];
343    }
344    uint64_t frame = mTimeFrame - mTimeLastFrame;
345    mTimeMSLastFrame = frame / 1000000;
346    mTimeMSLastScript = mTimers[RS_TIMER_SCRIPT] / 1000000;
347    mTimeMSLastSwap = mTimers[RS_TIMER_CLEAR_SWAP] / 1000000;
348
349
350    if (props.mLogTimes) {
351        LOGV("RS: Frame (%i),   Script %2.1f (%i),  Clear & Swap %2.1f (%i),  Idle %2.1f (%lli),  Internal %2.1f (%lli), Avg fps: %u",
352             mTimeMSLastFrame,
353             100.0 * mTimers[RS_TIMER_SCRIPT] / total, mTimeMSLastScript,
354             100.0 * mTimers[RS_TIMER_CLEAR_SWAP] / total, mTimeMSLastSwap,
355             100.0 * mTimers[RS_TIMER_IDLE] / total, mTimers[RS_TIMER_IDLE] / 1000000,
356             100.0 * mTimers[RS_TIMER_INTERNAL] / total, mTimers[RS_TIMER_INTERNAL] / 1000000,
357             mAverageFPS);
358    }
359}
360
361bool Context::setupCheck()
362{
363    if (!mShaderCache.lookup(this, mVertex.get(), mFragment.get())) {
364        LOGE("Context::setupCheck() 1 fail");
365        return false;
366    }
367
368    mFragmentStore->setupGL2(this, &mStateFragmentStore);
369    mFragment->setupGL2(this, &mStateFragment, &mShaderCache);
370    mRaster->setupGL2(this, &mStateRaster);
371    mVertex->setupGL2(this, &mStateVertex, &mShaderCache);
372    return true;
373}
374
375void Context::setupProgramStore() {
376    mFragmentStore->setupGL2(this, &mStateFragmentStore);
377}
378
379static bool getProp(const char *str)
380{
381    char buf[PROPERTY_VALUE_MAX];
382    property_get(str, buf, "0");
383    return 0 != strcmp(buf, "0");
384}
385
386void Context::displayDebugStats()
387{
388    char buffer[128];
389    sprintf(buffer, "Avg fps %u, Frame %i ms, Script %i ms", mAverageFPS, mTimeMSLastFrame, mTimeMSLastScript);
390    float oldR, oldG, oldB, oldA;
391    mStateFont.getFontColor(&oldR, &oldG, &oldB, &oldA);
392    uint32_t bufferLen = strlen(buffer);
393
394    float shadowCol = 0.1f;
395    mStateFont.setFontColor(shadowCol, shadowCol, shadowCol, 1.0f);
396    mStateFont.renderText(buffer, bufferLen, 5, getHeight() - 6);
397
398    mStateFont.setFontColor(1.0f, 0.7f, 0.0f, 1.0f);
399    mStateFont.renderText(buffer, bufferLen, 4, getHeight() - 7);
400
401    mStateFont.setFontColor(oldR, oldG, oldB, oldA);
402}
403
404void * Context::threadProc(void *vrsc)
405{
406     Context *rsc = static_cast<Context *>(vrsc);
407     rsc->mNativeThreadId = gettid();
408
409     setpriority(PRIO_PROCESS, rsc->mNativeThreadId, ANDROID_PRIORITY_DISPLAY);
410     rsc->mThreadPriority = ANDROID_PRIORITY_DISPLAY;
411
412     rsc->props.mLogTimes = getProp("debug.rs.profile");
413     rsc->props.mLogScripts = getProp("debug.rs.script");
414     rsc->props.mLogObjects = getProp("debug.rs.object");
415     rsc->props.mLogShaders = getProp("debug.rs.shader");
416     rsc->props.mLogShadersAttr = getProp("debug.rs.shader.attributes");
417     rsc->props.mLogShadersUniforms = getProp("debug.rs.shader.uniforms");
418     rsc->props.mLogVisual = getProp("debug.rs.visual");
419
420     rsc->mTlsStruct = new ScriptTLSStruct;
421     if (!rsc->mTlsStruct) {
422         LOGE("Error allocating tls storage");
423         return NULL;
424     }
425     rsc->mTlsStruct->mContext = rsc;
426     rsc->mTlsStruct->mScript = NULL;
427     int status = pthread_setspecific(rsc->gThreadTLSKey, rsc->mTlsStruct);
428     if (status) {
429         LOGE("pthread_setspecific %i", status);
430     }
431
432     rsc->initGLThread();
433
434     rsc->mScriptC.init(rsc);
435     if (rsc->mIsGraphicsContext) {
436         rsc->mStateRaster.init(rsc);
437         rsc->setRaster(NULL);
438         rsc->mStateVertex.init(rsc);
439         rsc->setVertex(NULL);
440         rsc->mStateFragment.init(rsc);
441         rsc->setFragment(NULL);
442         rsc->mStateFragmentStore.init(rsc);
443         rsc->setFragmentStore(NULL);
444         rsc->mStateFont.init(rsc);
445         rsc->setFont(NULL);
446         rsc->mStateVertexArray.init(rsc);
447     }
448
449     rsc->mRunning = true;
450     bool mDraw = true;
451     while (!rsc->mExit) {
452         mDraw |= rsc->mIO.playCoreCommands(rsc, !mDraw);
453         mDraw &= (rsc->mRootScript.get() != NULL);
454         mDraw &= (rsc->mWndSurface != NULL);
455
456         uint32_t targetTime = 0;
457         if (mDraw && rsc->mIsGraphicsContext) {
458             targetTime = rsc->runRootScript();
459
460             if(rsc->props.mLogVisual) {
461                 rsc->displayDebugStats();
462             }
463
464             mDraw = targetTime && !rsc->mPaused;
465             rsc->timerSet(RS_TIMER_CLEAR_SWAP);
466             eglSwapBuffers(rsc->mEGL.mDisplay, rsc->mEGL.mSurface);
467             rsc->timerFrame();
468             rsc->timerSet(RS_TIMER_INTERNAL);
469             rsc->timerPrint();
470             rsc->timerReset();
471         }
472         if (rsc->mThreadPriority > 0 && targetTime) {
473             int32_t t = (targetTime - (int32_t)(rsc->mTimeMSLastScript + rsc->mTimeMSLastSwap)) * 1000;
474             if (t > 0) {
475                 usleep(t);
476             }
477         }
478     }
479
480     LOGV("%p, RS Thread exiting", rsc);
481     if (rsc->mIsGraphicsContext) {
482         rsc->mRaster.clear();
483         rsc->mFragment.clear();
484         rsc->mVertex.clear();
485         rsc->mFragmentStore.clear();
486         rsc->mFont.clear();
487         rsc->mRootScript.clear();
488         rsc->mStateRaster.deinit(rsc);
489         rsc->mStateVertex.deinit(rsc);
490         rsc->mStateFragment.deinit(rsc);
491         rsc->mStateFragmentStore.deinit(rsc);
492         rsc->mStateFont.deinit(rsc);
493     }
494     ObjectBase::zeroAllUserRef(rsc);
495
496     if (rsc->mIsGraphicsContext) {
497         pthread_mutex_lock(&gInitMutex);
498         rsc->deinitEGL();
499         pthread_mutex_unlock(&gInitMutex);
500     }
501     delete rsc->mTlsStruct;
502
503     LOGV("%p, RS Thread exited", rsc);
504     return NULL;
505}
506
507void * Context::helperThreadProc(void *vrsc)
508{
509     Context *rsc = static_cast<Context *>(vrsc);
510     uint32_t idx = (uint32_t)android_atomic_inc(&rsc->mWorkers.mLaunchCount);
511
512     LOGV("RS helperThread starting %p idx=%i", rsc, idx);
513
514     rsc->mWorkers.mLaunchSignals[idx].init();
515     rsc->mWorkers.mNativeThreadId[idx] = gettid();
516
517#if 0
518     typedef struct {uint64_t bits[1024 / 64]; } cpu_set_t;
519     cpu_set_t cpuset;
520     memset(&cpuset, 0, sizeof(cpuset));
521     cpuset.bits[idx / 64] |= 1ULL << (idx % 64);
522     int ret = syscall(241, rsc->mWorkers.mNativeThreadId[idx],
523               sizeof(cpuset), &cpuset);
524     LOGE("SETAFFINITY ret = %i %s", ret, EGLUtils::strerror(ret));
525#endif
526
527     setpriority(PRIO_PROCESS, rsc->mWorkers.mNativeThreadId[idx], rsc->mThreadPriority);
528     int status = pthread_setspecific(rsc->gThreadTLSKey, rsc->mTlsStruct);
529     if (status) {
530         LOGE("pthread_setspecific %i", status);
531     }
532
533     while(rsc->mRunning) {
534         rsc->mWorkers.mLaunchSignals[idx].wait();
535         if (rsc->mWorkers.mLaunchCallback) {
536            rsc->mWorkers.mLaunchCallback(rsc->mWorkers.mLaunchData, idx);
537         }
538         android_atomic_dec(&rsc->mWorkers.mRunningCount);
539         rsc->mWorkers.mCompleteSignal.set();
540     }
541
542     LOGV("RS helperThread exiting %p idx=%i", rsc, idx);
543     return NULL;
544}
545
546void Context::launchThreads(WorkerCallback_t cbk, void *data)
547{
548    mWorkers.mLaunchData = data;
549    mWorkers.mLaunchCallback = cbk;
550    mWorkers.mRunningCount = (int)mWorkers.mCount;
551    for (uint32_t ct = 0; ct < mWorkers.mCount; ct++) {
552        mWorkers.mLaunchSignals[ct].set();
553    }
554    while(mWorkers.mRunningCount) {
555        mWorkers.mCompleteSignal.wait();
556    }
557}
558
559void Context::setPriority(int32_t p)
560{
561    // Note: If we put this in the proper "background" policy
562    // the wallpapers can become completly unresponsive at times.
563    // This is probably not what we want for something the user is actively
564    // looking at.
565    mThreadPriority = p;
566#if 0
567    SchedPolicy pol = SP_FOREGROUND;
568    if (p > 0) {
569        pol = SP_BACKGROUND;
570    }
571    if (!set_sched_policy(mNativeThreadId, pol)) {
572        // success; reset the priority as well
573    }
574#else
575    setpriority(PRIO_PROCESS, mNativeThreadId, p);
576    for (uint32_t ct=0; ct < mWorkers.mCount; ct++) {
577        setpriority(PRIO_PROCESS, mWorkers.mNativeThreadId[ct], p);
578    }
579#endif
580}
581
582Context::Context(Device *dev, const RsSurfaceConfig *sc)
583{
584    pthread_mutex_lock(&gInitMutex);
585
586    dev->addContext(this);
587    mDev = dev;
588    mRunning = false;
589    mExit = false;
590    mPaused = false;
591    mObjHead = NULL;
592    mError = RS_ERROR_NONE;
593    mErrorMsg = NULL;
594    if (sc) {
595        mUserSurfaceConfig = *sc;
596    } else {
597        memset(&mUserSurfaceConfig, 0, sizeof(mUserSurfaceConfig));
598    }
599
600    memset(&mEGL, 0, sizeof(mEGL));
601    memset(&mGL, 0, sizeof(mGL));
602    mIsGraphicsContext = sc != NULL;
603
604    int status;
605    pthread_attr_t threadAttr;
606
607    if (!gThreadTLSKeyCount) {
608        status = pthread_key_create(&gThreadTLSKey, NULL);
609        if (status) {
610            LOGE("Failed to init thread tls key.");
611            pthread_mutex_unlock(&gInitMutex);
612            return;
613        }
614    }
615    gThreadTLSKeyCount++;
616
617    pthread_mutex_unlock(&gInitMutex);
618
619    // Global init done at this point.
620
621    status = pthread_attr_init(&threadAttr);
622    if (status) {
623        LOGE("Failed to init thread attribute.");
624        return;
625    }
626
627    mWndSurface = NULL;
628
629    timerInit();
630    timerSet(RS_TIMER_INTERNAL);
631
632    int cpu = sysconf(_SC_NPROCESSORS_ONLN);
633    LOGV("RS Launching thread(s), reported CPU count %i", cpu);
634    if (cpu < 2) cpu = 0;
635
636    mWorkers.mCount = (uint32_t)cpu;
637    mWorkers.mThreadId = (pthread_t *) calloc(mWorkers.mCount, sizeof(pthread_t));
638    mWorkers.mNativeThreadId = (pid_t *) calloc(mWorkers.mCount, sizeof(pid_t));
639    mWorkers.mLaunchSignals = new Signal[mWorkers.mCount];
640    mWorkers.mLaunchCallback = NULL;
641    status = pthread_create(&mThreadId, &threadAttr, threadProc, this);
642    if (status) {
643        LOGE("Failed to start rs context thread.");
644        return;
645    }
646    while(!mRunning) {
647        usleep(100);
648    }
649
650    mWorkers.mCompleteSignal.init();
651    mWorkers.mRunningCount = 0;
652    mWorkers.mLaunchCount = 0;
653    for (uint32_t ct=0; ct < mWorkers.mCount; ct++) {
654        status = pthread_create(&mWorkers.mThreadId[ct], &threadAttr, helperThreadProc, this);
655        if (status) {
656            mWorkers.mCount = ct;
657            LOGE("Created fewer than expected number of RS threads.");
658            break;
659        }
660    }
661    pthread_attr_destroy(&threadAttr);
662}
663
664Context::~Context()
665{
666    LOGV("Context::~Context");
667    mExit = true;
668    mPaused = false;
669    void *res;
670
671    mIO.shutdown();
672    int status = pthread_join(mThreadId, &res);
673
674    // Global structure cleanup.
675    pthread_mutex_lock(&gInitMutex);
676    if (mDev) {
677        mDev->removeContext(this);
678        --gThreadTLSKeyCount;
679        if (!gThreadTLSKeyCount) {
680            pthread_key_delete(gThreadTLSKey);
681        }
682        mDev = NULL;
683    }
684    pthread_mutex_unlock(&gInitMutex);
685}
686
687void Context::setSurface(uint32_t w, uint32_t h, ANativeWindow *sur)
688{
689    rsAssert(mIsGraphicsContext);
690
691    EGLBoolean ret;
692    if (mEGL.mSurface != NULL) {
693        ret = eglMakeCurrent(mEGL.mDisplay, mEGL.mSurfaceDefault, mEGL.mSurfaceDefault, mEGL.mContext);
694        checkEglError("eglMakeCurrent", ret);
695
696        ret = eglDestroySurface(mEGL.mDisplay, mEGL.mSurface);
697        checkEglError("eglDestroySurface", ret);
698
699        mEGL.mSurface = NULL;
700        mWidth = 1;
701        mHeight = 1;
702    }
703
704    mWndSurface = sur;
705    if (mWndSurface != NULL) {
706        mWidth = w;
707        mHeight = h;
708
709        mEGL.mSurface = eglCreateWindowSurface(mEGL.mDisplay, mEGL.mConfig, mWndSurface, NULL);
710        checkEglError("eglCreateWindowSurface");
711        if (mEGL.mSurface == EGL_NO_SURFACE) {
712            LOGE("eglCreateWindowSurface returned EGL_NO_SURFACE");
713        }
714
715        ret = eglMakeCurrent(mEGL.mDisplay, mEGL.mSurface, mEGL.mSurface, mEGL.mContext);
716        checkEglError("eglMakeCurrent", ret);
717
718        mStateVertex.updateSize(this);
719    }
720}
721
722void Context::pause()
723{
724    rsAssert(mIsGraphicsContext);
725    mPaused = true;
726}
727
728void Context::resume()
729{
730    rsAssert(mIsGraphicsContext);
731    mPaused = false;
732}
733
734void Context::setRootScript(Script *s)
735{
736    rsAssert(mIsGraphicsContext);
737    mRootScript.set(s);
738}
739
740void Context::setFragmentStore(ProgramStore *pfs)
741{
742    rsAssert(mIsGraphicsContext);
743    if (pfs == NULL) {
744        mFragmentStore.set(mStateFragmentStore.mDefault);
745    } else {
746        mFragmentStore.set(pfs);
747    }
748}
749
750void Context::setFragment(ProgramFragment *pf)
751{
752    rsAssert(mIsGraphicsContext);
753    if (pf == NULL) {
754        mFragment.set(mStateFragment.mDefault);
755    } else {
756        mFragment.set(pf);
757    }
758}
759
760void Context::setRaster(ProgramRaster *pr)
761{
762    rsAssert(mIsGraphicsContext);
763    if (pr == NULL) {
764        mRaster.set(mStateRaster.mDefault);
765    } else {
766        mRaster.set(pr);
767    }
768}
769
770void Context::setVertex(ProgramVertex *pv)
771{
772    rsAssert(mIsGraphicsContext);
773    if (pv == NULL) {
774        mVertex.set(mStateVertex.mDefault);
775    } else {
776        mVertex.set(pv);
777    }
778}
779
780void Context::setFont(Font *f)
781{
782    rsAssert(mIsGraphicsContext);
783    if (f == NULL) {
784        mFont.set(mStateFont.mDefault);
785    } else {
786        mFont.set(f);
787    }
788}
789
790void Context::assignName(ObjectBase *obj, const char *name, uint32_t len)
791{
792    rsAssert(!obj->getName());
793    obj->setName(name, len);
794    mNames.add(obj);
795}
796
797void Context::removeName(ObjectBase *obj)
798{
799    for(size_t ct=0; ct < mNames.size(); ct++) {
800        if (obj == mNames[ct]) {
801            mNames.removeAt(ct);
802            return;
803        }
804    }
805}
806
807uint32_t Context::getMessageToClient(void *data, size_t *receiveLen, size_t bufferLen, bool wait)
808{
809    //LOGE("getMessageToClient %i %i", bufferLen, wait);
810    *receiveLen = 0;
811    if (!wait) {
812        if (mIO.mToClient.isEmpty()) {
813            // No message to get and not going to wait for one.
814            return 0;
815        }
816    }
817
818    //LOGE("getMessageToClient 2 con=%p", this);
819    uint32_t bytesData = 0;
820    uint32_t commandID = 0;
821    const void *d = mIO.mToClient.get(&commandID, &bytesData);
822    //LOGE("getMessageToClient 3    %i  %i", commandID, bytesData);
823
824    *receiveLen = bytesData;
825    if (bufferLen >= bytesData) {
826        memcpy(data, d, bytesData);
827        mIO.mToClient.next();
828        return commandID;
829    }
830    return 0;
831}
832
833bool Context::sendMessageToClient(void *data, uint32_t cmdID, size_t len, bool waitForSpace)
834{
835    //LOGE("sendMessageToClient %i %i %i", cmdID, len, waitForSpace);
836    if (cmdID == 0) {
837        LOGE("Attempting to send invalid command 0 to client.");
838        return false;
839    }
840    if (!waitForSpace) {
841        if (!mIO.mToClient.makeSpaceNonBlocking(len + 8)) {
842            // Not enough room, and not waiting.
843            return false;
844        }
845    }
846    //LOGE("sendMessageToClient 2");
847    if (len > 0) {
848        void *p = mIO.mToClient.reserve(len);
849        memcpy(p, data, len);
850        mIO.mToClient.commit(cmdID, len);
851    } else {
852        mIO.mToClient.commit(cmdID, 0);
853    }
854    //LOGE("sendMessageToClient 3");
855    return true;
856}
857
858void Context::initToClient()
859{
860    while(!mRunning) {
861        usleep(100);
862    }
863}
864
865void Context::deinitToClient()
866{
867    mIO.mToClient.shutdown();
868}
869
870const char * Context::getError(RsError *err)
871{
872    *err = mError;
873    mError = RS_ERROR_NONE;
874    if (*err != RS_ERROR_NONE) {
875        return mErrorMsg;
876    }
877    return NULL;
878}
879
880void Context::setError(RsError e, const char *msg)
881{
882    mError = e;
883    mErrorMsg = msg;
884}
885
886
887void Context::dumpDebug() const
888{
889    LOGE("RS Context debug %p", this);
890    LOGE("RS Context debug");
891
892    LOGE(" EGL ver %i %i", mEGL.mMajorVersion, mEGL.mMinorVersion);
893    LOGE(" EGL context %p  surface %p,  Display=%p", mEGL.mContext, mEGL.mSurface, mEGL.mDisplay);
894    LOGE(" GL vendor: %s", mGL.mVendor);
895    LOGE(" GL renderer: %s", mGL.mRenderer);
896    LOGE(" GL Version: %s", mGL.mVersion);
897    LOGE(" GL Extensions: %s", mGL.mExtensions);
898    LOGE(" GL int Versions %i %i", mGL.mMajorVersion, mGL.mMinorVersion);
899    LOGE(" RS width %i, height %i", mWidth, mHeight);
900    LOGE(" RS running %i, exit %i, paused %i", mRunning, mExit, mPaused);
901    LOGE(" RS pThreadID %li, nativeThreadID %i", mThreadId, mNativeThreadId);
902
903    LOGV("MAX Textures %i, %i  %i", mGL.mMaxVertexTextureUnits, mGL.mMaxFragmentTextureImageUnits, mGL.mMaxTextureImageUnits);
904    LOGV("MAX Attribs %i", mGL.mMaxVertexAttribs);
905    LOGV("MAX Uniforms %i, %i", mGL.mMaxVertexUniformVectors, mGL.mMaxFragmentUniformVectors);
906    LOGV("MAX Varyings %i", mGL.mMaxVaryingVectors);
907}
908
909///////////////////////////////////////////////////////////////////////////////////////////
910//
911
912namespace android {
913namespace renderscript {
914
915void rsi_ContextFinish(Context *rsc)
916{
917}
918
919void rsi_ContextBindRootScript(Context *rsc, RsScript vs)
920{
921    Script *s = static_cast<Script *>(vs);
922    rsc->setRootScript(s);
923}
924
925void rsi_ContextBindSampler(Context *rsc, uint32_t slot, RsSampler vs)
926{
927    Sampler *s = static_cast<Sampler *>(vs);
928
929    if (slot > RS_MAX_SAMPLER_SLOT) {
930        LOGE("Invalid sampler slot");
931        return;
932    }
933
934    s->bindToContext(&rsc->mStateSampler, slot);
935}
936
937void rsi_ContextBindProgramStore(Context *rsc, RsProgramStore vpfs)
938{
939    ProgramStore *pfs = static_cast<ProgramStore *>(vpfs);
940    rsc->setFragmentStore(pfs);
941}
942
943void rsi_ContextBindProgramFragment(Context *rsc, RsProgramFragment vpf)
944{
945    ProgramFragment *pf = static_cast<ProgramFragment *>(vpf);
946    rsc->setFragment(pf);
947}
948
949void rsi_ContextBindProgramRaster(Context *rsc, RsProgramRaster vpr)
950{
951    ProgramRaster *pr = static_cast<ProgramRaster *>(vpr);
952    rsc->setRaster(pr);
953}
954
955void rsi_ContextBindProgramVertex(Context *rsc, RsProgramVertex vpv)
956{
957    ProgramVertex *pv = static_cast<ProgramVertex *>(vpv);
958    rsc->setVertex(pv);
959}
960
961void rsi_ContextBindFont(Context *rsc, RsFont vfont)
962{
963    Font *font = static_cast<Font *>(vfont);
964    rsc->setFont(font);
965}
966
967void rsi_AssignName(Context *rsc, void * obj, const char *name, uint32_t len)
968{
969    ObjectBase *ob = static_cast<ObjectBase *>(obj);
970    rsc->assignName(ob, name, len);
971}
972
973void rsi_GetName(Context *rsc, void * obj, const char **name)
974{
975    ObjectBase *ob = static_cast<ObjectBase *>(obj);
976    (*name) = ob->getName();
977}
978
979void rsi_ObjDestroy(Context *rsc, void *optr)
980{
981    ObjectBase *ob = static_cast<ObjectBase *>(optr);
982    rsc->removeName(ob);
983    ob->decUserRef();
984}
985
986void rsi_ContextPause(Context *rsc)
987{
988    rsc->pause();
989}
990
991void rsi_ContextResume(Context *rsc)
992{
993    rsc->resume();
994}
995
996void rsi_ContextSetSurface(Context *rsc, uint32_t w, uint32_t h, ANativeWindow *sur)
997{
998    rsc->setSurface(w, h, sur);
999}
1000
1001void rsi_ContextSetPriority(Context *rsc, int32_t p)
1002{
1003    rsc->setPriority(p);
1004}
1005
1006void rsi_ContextDump(Context *rsc, int32_t bits)
1007{
1008    ObjectBase::dumpAll(rsc);
1009}
1010
1011const char * rsi_ContextGetError(Context *rsc, RsError *e)
1012{
1013    const char *msg = rsc->getError(e);
1014    if (*e != RS_ERROR_NONE) {
1015        LOGE("RS Error %i %s", *e, msg);
1016    }
1017    return msg;
1018}
1019
1020}
1021}
1022
1023
1024RsContext rsContextCreate(RsDevice vdev, uint32_t version)
1025{
1026    LOGV("rsContextCreate %p", vdev);
1027    Device * dev = static_cast<Device *>(vdev);
1028    Context *rsc = new Context(dev, NULL);
1029    return rsc;
1030}
1031
1032RsContext rsContextCreateGL(RsDevice vdev, uint32_t version, RsSurfaceConfig sc)
1033{
1034    LOGV("rsContextCreateGL %p", vdev);
1035    Device * dev = static_cast<Device *>(vdev);
1036    Context *rsc = new Context(dev, &sc);
1037    LOGV("rsContextCreateGL ret %p ", rsc);
1038    return rsc;
1039}
1040
1041void rsContextDestroy(RsContext vrsc)
1042{
1043    Context * rsc = static_cast<Context *>(vrsc);
1044    delete rsc;
1045}
1046
1047uint32_t rsContextGetMessage(RsContext vrsc, void *data, size_t *receiveLen, size_t bufferLen, bool wait)
1048{
1049    Context * rsc = static_cast<Context *>(vrsc);
1050    return rsc->getMessageToClient(data, receiveLen, bufferLen, wait);
1051}
1052
1053void rsContextInitToClient(RsContext vrsc)
1054{
1055    Context * rsc = static_cast<Context *>(vrsc);
1056    rsc->initToClient();
1057}
1058
1059void rsContextDeinitToClient(RsContext vrsc)
1060{
1061    Context * rsc = static_cast<Context *>(vrsc);
1062    rsc->deinitToClient();
1063}
1064
1065