rsContext.cpp revision 721acc495b859c6d884725a4f9b5523583dd11c7 
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;
47pthread_mutex_t Context::gLibMutex = PTHREAD_MUTEX_INITIALIZER;
48
49static void checkEglError(const char* op, EGLBoolean returnVal = EGL_TRUE) {
50    if (returnVal != EGL_TRUE) {
51        fprintf(stderr, "%s() returned %d\n", op, returnVal);
52    }
53
54    for (EGLint error = eglGetError(); error != EGL_SUCCESS; error
55            = eglGetError()) {
56        fprintf(stderr, "after %s() eglError %s (0x%x)\n", op, EGLUtils::strerror(error),
57                error);
58    }
59}
60
61void printEGLConfiguration(EGLDisplay dpy, EGLConfig config) {
62
63#define X(VAL) {VAL, #VAL}
64    struct {EGLint attribute; const char* name;} names[] = {
65    X(EGL_BUFFER_SIZE),
66    X(EGL_ALPHA_SIZE),
67    X(EGL_BLUE_SIZE),
68    X(EGL_GREEN_SIZE),
69    X(EGL_RED_SIZE),
70    X(EGL_DEPTH_SIZE),
71    X(EGL_STENCIL_SIZE),
72    X(EGL_CONFIG_CAVEAT),
73    X(EGL_CONFIG_ID),
74    X(EGL_LEVEL),
75    X(EGL_MAX_PBUFFER_HEIGHT),
76    X(EGL_MAX_PBUFFER_PIXELS),
77    X(EGL_MAX_PBUFFER_WIDTH),
78    X(EGL_NATIVE_RENDERABLE),
79    X(EGL_NATIVE_VISUAL_ID),
80    X(EGL_NATIVE_VISUAL_TYPE),
81    X(EGL_SAMPLES),
82    X(EGL_SAMPLE_BUFFERS),
83    X(EGL_SURFACE_TYPE),
84    X(EGL_TRANSPARENT_TYPE),
85    X(EGL_TRANSPARENT_RED_VALUE),
86    X(EGL_TRANSPARENT_GREEN_VALUE),
87    X(EGL_TRANSPARENT_BLUE_VALUE),
88    X(EGL_BIND_TO_TEXTURE_RGB),
89    X(EGL_BIND_TO_TEXTURE_RGBA),
90    X(EGL_MIN_SWAP_INTERVAL),
91    X(EGL_MAX_SWAP_INTERVAL),
92    X(EGL_LUMINANCE_SIZE),
93    X(EGL_ALPHA_MASK_SIZE),
94    X(EGL_COLOR_BUFFER_TYPE),
95    X(EGL_RENDERABLE_TYPE),
96    X(EGL_CONFORMANT),
97   };
98#undef X
99
100    for (size_t j = 0; j < sizeof(names) / sizeof(names[0]); j++) {
101        EGLint value = -1;
102        EGLint returnVal = eglGetConfigAttrib(dpy, config, names[j].attribute, &value);
103        EGLint error = eglGetError();
104        if (returnVal && error == EGL_SUCCESS) {
105            LOGV(" %s: %d (0x%x)", names[j].name, value, value);
106        }
107    }
108}
109
110
111bool Context::initGLThread() {
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        pthread_mutex_unlock(&gInitMutex);
173        LOGE("%p, eglCreateContext returned EGL_NO_CONTEXT", this);
174        return false;
175    }
176    gGLContextCount++;
177
178
179    EGLint pbuffer_attribs[] = { EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE };
180    mEGL.mSurfaceDefault = eglCreatePbufferSurface(mEGL.mDisplay, mEGL.mConfig, pbuffer_attribs);
181    checkEglError("eglCreatePbufferSurface");
182    if (mEGL.mSurfaceDefault == EGL_NO_SURFACE) {
183        LOGE("eglCreatePbufferSurface returned EGL_NO_SURFACE");
184        pthread_mutex_unlock(&gInitMutex);
185        deinitEGL();
186        return false;
187    }
188
189    EGLBoolean ret = eglMakeCurrent(mEGL.mDisplay, mEGL.mSurfaceDefault, mEGL.mSurfaceDefault, mEGL.mContext);
190    if (ret == EGL_FALSE) {
191        LOGE("eglMakeCurrent returned EGL_FALSE");
192        checkEglError("eglMakeCurrent", ret);
193        pthread_mutex_unlock(&gInitMutex);
194        deinitEGL();
195        return false;
196    }
197
198    mGL.mVersion = glGetString(GL_VERSION);
199    mGL.mVendor = glGetString(GL_VENDOR);
200    mGL.mRenderer = glGetString(GL_RENDERER);
201    mGL.mExtensions = glGetString(GL_EXTENSIONS);
202
203    //LOGV("EGL Version %i %i", mEGL.mMajorVersion, mEGL.mMinorVersion);
204    //LOGV("GL Version %s", mGL.mVersion);
205    //LOGV("GL Vendor %s", mGL.mVendor);
206    //LOGV("GL Renderer %s", mGL.mRenderer);
207    //LOGV("GL Extensions %s", mGL.mExtensions);
208
209    const char *verptr = NULL;
210    if (strlen((const char *)mGL.mVersion) > 9) {
211        if (!memcmp(mGL.mVersion, "OpenGL ES-CM", 12)) {
212            verptr = (const char *)mGL.mVersion + 12;
213        }
214        if (!memcmp(mGL.mVersion, "OpenGL ES ", 10)) {
215            verptr = (const char *)mGL.mVersion + 9;
216        }
217    }
218
219    if (!verptr) {
220        LOGE("Error, OpenGL ES Lite not supported");
221        pthread_mutex_unlock(&gInitMutex);
222        deinitEGL();
223        return false;
224    } else {
225        sscanf(verptr, " %i.%i", &mGL.mMajorVersion, &mGL.mMinorVersion);
226    }
227
228    glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &mGL.mMaxVertexAttribs);
229    glGetIntegerv(GL_MAX_VERTEX_UNIFORM_VECTORS, &mGL.mMaxVertexUniformVectors);
230    glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &mGL.mMaxVertexTextureUnits);
231
232    glGetIntegerv(GL_MAX_VARYING_VECTORS, &mGL.mMaxVaryingVectors);
233    glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &mGL.mMaxTextureImageUnits);
234
235    glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &mGL.mMaxFragmentTextureImageUnits);
236    glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_VECTORS, &mGL.mMaxFragmentUniformVectors);
237
238    mGL.OES_texture_npot = NULL != strstr((const char *)mGL.mExtensions, "GL_OES_texture_npot");
239    mGL.GL_IMG_texture_npot = NULL != strstr((const char *)mGL.mExtensions, "GL_IMG_texture_npot");
240    mGL.GL_NV_texture_npot_2D_mipmap = NULL != strstr((const char *)mGL.mExtensions, "GL_NV_texture_npot_2D_mipmap");
241    mGL.EXT_texture_max_aniso = 1.0f;
242    bool hasAniso = NULL != strstr((const char *)mGL.mExtensions, "GL_EXT_texture_filter_anisotropic");
243    if (hasAniso) {
244        glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &mGL.EXT_texture_max_aniso);
245    }
246
247    LOGV("initGLThread end %p", this);
248    pthread_mutex_unlock(&gInitMutex);
249    return true;
250}
251
252void Context::deinitEGL() {
253    LOGV("%p, deinitEGL", this);
254
255    if (mEGL.mContext != EGL_NO_CONTEXT) {
256        eglMakeCurrent(mEGL.mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
257        eglDestroySurface(mEGL.mDisplay, mEGL.mSurfaceDefault);
258        if (mEGL.mSurface != EGL_NO_SURFACE) {
259            eglDestroySurface(mEGL.mDisplay, mEGL.mSurface);
260        }
261        eglDestroyContext(mEGL.mDisplay, mEGL.mContext);
262        checkEglError("eglDestroyContext");
263    }
264
265    gGLContextCount--;
266    if (!gGLContextCount) {
267        eglTerminate(mEGL.mDisplay);
268    }
269}
270
271Context::PushState::PushState(Context *con) {
272    mRsc = con;
273    if (con->mIsGraphicsContext) {
274        mFragment.set(con->getProgramFragment());
275        mVertex.set(con->getProgramVertex());
276        mStore.set(con->getProgramStore());
277        mRaster.set(con->getProgramRaster());
278        mFont.set(con->getFont());
279    }
280}
281
282Context::PushState::~PushState() {
283    if (mRsc->mIsGraphicsContext) {
284        mRsc->setProgramFragment(mFragment.get());
285        mRsc->setProgramVertex(mVertex.get());
286        mRsc->setProgramStore(mStore.get());
287        mRsc->setProgramRaster(mRaster.get());
288        mRsc->setFont(mFont.get());
289    }
290}
291
292
293uint32_t Context::runScript(Script *s) {
294    PushState(this);
295
296    uint32_t ret = s->run(this);
297    return ret;
298}
299
300void Context::checkError(const char *msg, bool isFatal) const {
301
302    GLenum err = glGetError();
303    if (err != GL_NO_ERROR) {
304        char buf[1024];
305        snprintf(buf, sizeof(buf), "GL Error = 0x%08x, from: %s", err, msg);
306
307        if (isFatal) {
308            setError(RS_ERROR_FATAL_DRIVER, buf);
309        } else {
310            switch (err) {
311            case GL_OUT_OF_MEMORY:
312                setError(RS_ERROR_OUT_OF_MEMORY, buf);
313                break;
314            default:
315                setError(RS_ERROR_DRIVER, buf);
316                break;
317            }
318        }
319
320        LOGE("%p, %s", this, buf);
321    }
322}
323
324uint32_t Context::runRootScript() {
325    glViewport(0, 0, mWidth, mHeight);
326
327    timerSet(RS_TIMER_SCRIPT);
328    mStateFragmentStore.mLast.clear();
329    uint32_t ret = runScript(mRootScript.get());
330
331    checkError("runRootScript");
332    return ret;
333}
334
335uint64_t Context::getTime() const {
336    struct timespec t;
337    clock_gettime(CLOCK_MONOTONIC, &t);
338    return t.tv_nsec + ((uint64_t)t.tv_sec * 1000 * 1000 * 1000);
339}
340
341void Context::timerReset() {
342    for (int ct=0; ct < _RS_TIMER_TOTAL; ct++) {
343        mTimers[ct] = 0;
344    }
345}
346
347void Context::timerInit() {
348    mTimeLast = getTime();
349    mTimeFrame = mTimeLast;
350    mTimeLastFrame = mTimeLast;
351    mTimerActive = RS_TIMER_INTERNAL;
352    mAverageFPSFrameCount = 0;
353    mAverageFPSStartTime = mTimeLast;
354    mAverageFPS = 0;
355    timerReset();
356}
357
358void Context::timerFrame() {
359    mTimeLastFrame = mTimeFrame;
360    mTimeFrame = getTime();
361    // Update average fps
362    const uint64_t averageFramerateInterval = 1000 * 1000000;
363    mAverageFPSFrameCount ++;
364    uint64_t inverval = mTimeFrame - mAverageFPSStartTime;
365    if (inverval >= averageFramerateInterval) {
366        inverval = inverval / 1000000;
367        mAverageFPS = (mAverageFPSFrameCount * 1000) / inverval;
368        mAverageFPSFrameCount = 0;
369        mAverageFPSStartTime = mTimeFrame;
370    }
371}
372
373void Context::timerSet(Timers tm) {
374    uint64_t last = mTimeLast;
375    mTimeLast = getTime();
376    mTimers[mTimerActive] += mTimeLast - last;
377    mTimerActive = tm;
378}
379
380void Context::timerPrint() {
381    double total = 0;
382    for (int ct = 0; ct < _RS_TIMER_TOTAL; ct++) {
383        total += mTimers[ct];
384    }
385    uint64_t frame = mTimeFrame - mTimeLastFrame;
386    mTimeMSLastFrame = frame / 1000000;
387    mTimeMSLastScript = mTimers[RS_TIMER_SCRIPT] / 1000000;
388    mTimeMSLastSwap = mTimers[RS_TIMER_CLEAR_SWAP] / 1000000;
389
390
391    if (props.mLogTimes) {
392        LOGV("RS: Frame (%i),   Script %2.1f%% (%i),  Swap %2.1f%% (%i),  Idle %2.1f%% (%lli),  Internal %2.1f%% (%lli), Avg fps: %u",
393             mTimeMSLastFrame,
394             100.0 * mTimers[RS_TIMER_SCRIPT] / total, mTimeMSLastScript,
395             100.0 * mTimers[RS_TIMER_CLEAR_SWAP] / total, mTimeMSLastSwap,
396             100.0 * mTimers[RS_TIMER_IDLE] / total, mTimers[RS_TIMER_IDLE] / 1000000,
397             100.0 * mTimers[RS_TIMER_INTERNAL] / total, mTimers[RS_TIMER_INTERNAL] / 1000000,
398             mAverageFPS);
399    }
400}
401
402bool Context::setupCheck() {
403    if (!mShaderCache.lookup(this, mVertex.get(), mFragment.get())) {
404        LOGE("Context::setupCheck() 1 fail");
405        return false;
406    }
407
408    mFragmentStore->setup(this, &mStateFragmentStore);
409    mFragment->setupGL2(this, &mStateFragment, &mShaderCache);
410    mRaster->setup(this, &mStateRaster);
411    mVertex->setupGL2(this, &mStateVertex, &mShaderCache);
412    mFBOCache.setupGL2(this);
413    return true;
414}
415
416void Context::setupProgramStore() {
417    mFragmentStore->setup(this, &mStateFragmentStore);
418}
419
420static bool getProp(const char *str) {
421    char buf[PROPERTY_VALUE_MAX];
422    property_get(str, buf, "0");
423    return 0 != strcmp(buf, "0");
424}
425
426void Context::displayDebugStats() {
427    char buffer[128];
428    sprintf(buffer, "Avg fps %u, Frame %i ms, Script %i ms", mAverageFPS, mTimeMSLastFrame, mTimeMSLastScript);
429    float oldR, oldG, oldB, oldA;
430    mStateFont.getFontColor(&oldR, &oldG, &oldB, &oldA);
431    uint32_t bufferLen = strlen(buffer);
432
433    ObjectBaseRef<Font> lastFont(getFont());
434    setFont(NULL);
435    float shadowCol = 0.1f;
436    mStateFont.setFontColor(shadowCol, shadowCol, shadowCol, 1.0f);
437    mStateFont.renderText(buffer, bufferLen, 5, getHeight() - 6);
438
439    mStateFont.setFontColor(1.0f, 0.7f, 0.0f, 1.0f);
440    mStateFont.renderText(buffer, bufferLen, 4, getHeight() - 7);
441
442    setFont(lastFont.get());
443    mStateFont.setFontColor(oldR, oldG, oldB, oldA);
444}
445
446void * Context::threadProc(void *vrsc) {
447     Context *rsc = static_cast<Context *>(vrsc);
448     rsc->mNativeThreadId = gettid();
449
450     setpriority(PRIO_PROCESS, rsc->mNativeThreadId, ANDROID_PRIORITY_DISPLAY);
451     rsc->mThreadPriority = ANDROID_PRIORITY_DISPLAY;
452
453     rsc->props.mLogTimes = getProp("debug.rs.profile");
454     rsc->props.mLogScripts = getProp("debug.rs.script");
455     rsc->props.mLogObjects = getProp("debug.rs.object");
456     rsc->props.mLogShaders = getProp("debug.rs.shader");
457     rsc->props.mLogShadersAttr = getProp("debug.rs.shader.attributes");
458     rsc->props.mLogShadersUniforms = getProp("debug.rs.shader.uniforms");
459     rsc->props.mLogVisual = getProp("debug.rs.visual");
460
461     rsc->mTlsStruct = new ScriptTLSStruct;
462     if (!rsc->mTlsStruct) {
463         LOGE("Error allocating tls storage");
464         rsc->setError(RS_ERROR_OUT_OF_MEMORY, "Failed allocation for TLS");
465         return NULL;
466     }
467     rsc->mTlsStruct->mContext = rsc;
468     rsc->mTlsStruct->mScript = NULL;
469     int status = pthread_setspecific(rsc->gThreadTLSKey, rsc->mTlsStruct);
470     if (status) {
471         LOGE("pthread_setspecific %i", status);
472     }
473
474     if (!rsc->initGLThread()) {
475         rsc->setError(RS_ERROR_OUT_OF_MEMORY, "Failed initializing GL");
476         return NULL;
477     }
478
479     if (rsc->mIsGraphicsContext) {
480         rsc->mStateRaster.init(rsc);
481         rsc->setProgramRaster(NULL);
482         rsc->mStateVertex.init(rsc);
483         rsc->setProgramVertex(NULL);
484         rsc->mStateFragment.init(rsc);
485         rsc->setProgramFragment(NULL);
486         rsc->mStateFragmentStore.init(rsc);
487         rsc->setProgramStore(NULL);
488         rsc->mStateFont.init(rsc);
489         rsc->setFont(NULL);
490         rsc->mStateVertexArray.init(rsc);
491     }
492
493     rsc->mRunning = true;
494     bool mDraw = true;
495     while (!rsc->mExit) {
496         mDraw |= rsc->mIO.playCoreCommands(rsc, !mDraw);
497         mDraw &= (rsc->mRootScript.get() != NULL);
498         mDraw &= (rsc->mWndSurface != NULL);
499
500         uint32_t targetTime = 0;
501         if (mDraw && rsc->mIsGraphicsContext) {
502             targetTime = rsc->runRootScript();
503
504             if (rsc->props.mLogVisual) {
505                 rsc->displayDebugStats();
506             }
507
508             mDraw = targetTime && !rsc->mPaused;
509             rsc->timerSet(RS_TIMER_CLEAR_SWAP);
510             eglSwapBuffers(rsc->mEGL.mDisplay, rsc->mEGL.mSurface);
511             rsc->timerFrame();
512             rsc->timerSet(RS_TIMER_INTERNAL);
513             rsc->timerPrint();
514             rsc->timerReset();
515         }
516         if (targetTime > 1) {
517             int32_t t = (targetTime - (int32_t)(rsc->mTimeMSLastScript + rsc->mTimeMSLastSwap)) * 1000;
518             if (t > 0) {
519                 usleep(t);
520             }
521         }
522     }
523
524     LOGV("%p, RS Thread exiting", rsc);
525
526     if (rsc->mIsGraphicsContext) {
527         pthread_mutex_lock(&gInitMutex);
528         rsc->deinitEGL();
529         pthread_mutex_unlock(&gInitMutex);
530     }
531     delete rsc->mTlsStruct;
532
533     LOGV("%p, RS Thread exited", rsc);
534     return NULL;
535}
536
537void Context::destroyWorkerThreadResources() {
538    //LOGV("destroyWorkerThreadResources 1");
539    ObjectBase::zeroAllUserRef(this);
540    if (mIsGraphicsContext) {
541         mRaster.clear();
542         mFragment.clear();
543         mVertex.clear();
544         mFragmentStore.clear();
545         mFont.clear();
546         mRootScript.clear();
547         mStateRaster.deinit(this);
548         mStateVertex.deinit(this);
549         mStateFragment.deinit(this);
550         mStateFragmentStore.deinit(this);
551         mStateFont.deinit(this);
552         mShaderCache.cleanupAll();
553    }
554    //LOGV("destroyWorkerThreadResources 2");
555    mExit = true;
556}
557
558void Context::setPriority(int32_t p) {
559    // Note: If we put this in the proper "background" policy
560    // the wallpapers can become completly unresponsive at times.
561    // This is probably not what we want for something the user is actively
562    // looking at.
563    mThreadPriority = p;
564#if 0
565    SchedPolicy pol = SP_FOREGROUND;
566    if (p > 0) {
567        pol = SP_BACKGROUND;
568    }
569    if (!set_sched_policy(mNativeThreadId, pol)) {
570        // success; reset the priority as well
571    }
572#else
573    setpriority(PRIO_PROCESS, mNativeThreadId, p);
574#endif
575}
576
577Context::Context() {
578    mDev = NULL;
579    mRunning = false;
580    mExit = false;
581    mPaused = false;
582    mObjHead = NULL;
583    mError = RS_ERROR_NONE;
584    mDPI = 96;
585}
586
587Context * Context::createContext(Device *dev, const RsSurfaceConfig *sc) {
588    Context * rsc = new Context();
589    if (!rsc->initContext(dev, sc)) {
590        delete rsc;
591        return NULL;
592    }
593    return rsc;
594}
595
596bool Context::initContext(Device *dev, const RsSurfaceConfig *sc) {
597    pthread_mutex_lock(&gInitMutex);
598
599    dev->addContext(this);
600    mDev = dev;
601    if (sc) {
602        mUserSurfaceConfig = *sc;
603    } else {
604        memset(&mUserSurfaceConfig, 0, sizeof(mUserSurfaceConfig));
605    }
606
607    memset(&mEGL, 0, sizeof(mEGL));
608    memset(&mGL, 0, sizeof(mGL));
609    mIsGraphicsContext = sc != NULL;
610
611    int status;
612    pthread_attr_t threadAttr;
613
614    if (!gThreadTLSKeyCount) {
615        status = pthread_key_create(&gThreadTLSKey, NULL);
616        if (status) {
617            LOGE("Failed to init thread tls key.");
618            pthread_mutex_unlock(&gInitMutex);
619            return false;
620        }
621    }
622    gThreadTLSKeyCount++;
623
624    pthread_mutex_unlock(&gInitMutex);
625
626    // Global init done at this point.
627
628    status = pthread_attr_init(&threadAttr);
629    if (status) {
630        LOGE("Failed to init thread attribute.");
631        return false;
632    }
633
634    mWndSurface = NULL;
635
636    timerInit();
637    timerSet(RS_TIMER_INTERNAL);
638
639    if (!rsdHalInit(this, 0, 0)) {
640        LOGE("Hal init failed");
641        return false;
642    }
643    mHal.funcs.setPriority(this, mThreadPriority);
644
645    status = pthread_create(&mThreadId, &threadAttr, threadProc, this);
646    if (status) {
647        LOGE("Failed to start rs context thread.");
648        return false;
649    }
650    while (!mRunning && (mError == RS_ERROR_NONE)) {
651        usleep(100);
652    }
653
654    if (mError != RS_ERROR_NONE) {
655        LOGE("Errors during thread init");
656        return false;
657    }
658
659    pthread_attr_destroy(&threadAttr);
660    return true;
661}
662
663Context::~Context() {
664    LOGV("Context::~Context");
665
666    mIO.mToCore.flush();
667    rsAssert(mExit);
668    mExit = true;
669    mPaused = false;
670    void *res;
671
672    mIO.shutdown();
673    int status = pthread_join(mThreadId, &res);
674
675
676    if (mHal.funcs.shutdownDriver) {
677        mHal.funcs.shutdownDriver(this);
678    }
679
680    // Global structure cleanup.
681    pthread_mutex_lock(&gInitMutex);
682    if (mDev) {
683        mDev->removeContext(this);
684        --gThreadTLSKeyCount;
685        if (!gThreadTLSKeyCount) {
686            pthread_key_delete(gThreadTLSKey);
687        }
688        mDev = NULL;
689    }
690    pthread_mutex_unlock(&gInitMutex);
691    LOGV("Context::~Context done");
692}
693
694void Context::setSurface(uint32_t w, uint32_t h, ANativeWindow *sur) {
695    rsAssert(mIsGraphicsContext);
696
697    EGLBoolean ret;
698    // WAR: Some drivers fail to handle 0 size surfaces correcntly.
699    // Use the pbuffer to avoid this pitfall.
700    if ((mEGL.mSurface != NULL) || (w == 0) || (h == 0)) {
701        ret = eglMakeCurrent(mEGL.mDisplay, mEGL.mSurfaceDefault, mEGL.mSurfaceDefault, mEGL.mContext);
702        checkEglError("eglMakeCurrent", ret);
703
704        ret = eglDestroySurface(mEGL.mDisplay, mEGL.mSurface);
705        checkEglError("eglDestroySurface", ret);
706
707        mEGL.mSurface = NULL;
708        mWidth = 1;
709        mHeight = 1;
710    }
711
712    mWndSurface = sur;
713    if (mWndSurface != NULL) {
714        mWidth = w;
715        mHeight = h;
716
717        mEGL.mSurface = eglCreateWindowSurface(mEGL.mDisplay, mEGL.mConfig, mWndSurface, NULL);
718        checkEglError("eglCreateWindowSurface");
719        if (mEGL.mSurface == EGL_NO_SURFACE) {
720            LOGE("eglCreateWindowSurface returned EGL_NO_SURFACE");
721        }
722
723        ret = eglMakeCurrent(mEGL.mDisplay, mEGL.mSurface, mEGL.mSurface, mEGL.mContext);
724        checkEglError("eglMakeCurrent", ret);
725
726        mStateVertex.updateSize(this);
727    }
728}
729
730void Context::pause() {
731    rsAssert(mIsGraphicsContext);
732    mPaused = true;
733}
734
735void Context::resume() {
736    rsAssert(mIsGraphicsContext);
737    mPaused = false;
738}
739
740void Context::setRootScript(Script *s) {
741    rsAssert(mIsGraphicsContext);
742    mRootScript.set(s);
743}
744
745void Context::setProgramStore(ProgramStore *pfs) {
746    rsAssert(mIsGraphicsContext);
747    if (pfs == NULL) {
748        mFragmentStore.set(mStateFragmentStore.mDefault);
749    } else {
750        mFragmentStore.set(pfs);
751    }
752}
753
754void Context::setProgramFragment(ProgramFragment *pf) {
755    rsAssert(mIsGraphicsContext);
756    if (pf == NULL) {
757        mFragment.set(mStateFragment.mDefault);
758    } else {
759        mFragment.set(pf);
760    }
761}
762
763void Context::setProgramRaster(ProgramRaster *pr) {
764    rsAssert(mIsGraphicsContext);
765    if (pr == NULL) {
766        mRaster.set(mStateRaster.mDefault);
767    } else {
768        mRaster.set(pr);
769    }
770}
771
772void Context::setProgramVertex(ProgramVertex *pv) {
773    rsAssert(mIsGraphicsContext);
774    if (pv == NULL) {
775        mVertex.set(mStateVertex.mDefault);
776    } else {
777        mVertex.set(pv);
778    }
779}
780
781void Context::setFont(Font *f) {
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    rsAssert(!obj->getName());
792    obj->setName(name, len);
793    mNames.add(obj);
794}
795
796void Context::removeName(ObjectBase *obj) {
797    for (size_t ct=0; ct < mNames.size(); ct++) {
798        if (obj == mNames[ct]) {
799            mNames.removeAt(ct);
800            return;
801        }
802    }
803}
804
805RsMessageToClientType Context::peekMessageToClient(size_t *receiveLen, uint32_t *subID, bool wait) {
806    *receiveLen = 0;
807    if (!wait && mIO.mToClient.isEmpty()) {
808        return RS_MESSAGE_TO_CLIENT_NONE;
809    }
810
811    uint32_t bytesData = 0;
812    uint32_t commandID = 0;
813    const uint32_t *d = (const uint32_t *)mIO.mToClient.get(&commandID, &bytesData);
814    *receiveLen = bytesData - sizeof(uint32_t);
815    if (bytesData) {
816        *subID = d[0];
817    }
818    return (RsMessageToClientType)commandID;
819}
820
821RsMessageToClientType Context::getMessageToClient(void *data, size_t *receiveLen, uint32_t *subID, size_t bufferLen, bool wait) {
822    //LOGE("getMessageToClient %i %i", bufferLen, wait);
823    *receiveLen = 0;
824    if (!wait && mIO.mToClient.isEmpty()) {
825        return RS_MESSAGE_TO_CLIENT_NONE;
826    }
827
828    //LOGE("getMessageToClient 2 con=%p", this);
829    uint32_t bytesData = 0;
830    uint32_t commandID = 0;
831    const uint32_t *d = (const uint32_t *)mIO.mToClient.get(&commandID, &bytesData);
832    //LOGE("getMessageToClient 3    %i  %i", commandID, bytesData);
833
834    *receiveLen = bytesData - sizeof(uint32_t);
835    *subID = d[0];
836
837    //LOGE("getMessageToClient  %i %i", commandID, *subID);
838    if (bufferLen >= bytesData) {
839        memcpy(data, d+1, *receiveLen);
840        mIO.mToClient.next();
841        return (RsMessageToClientType)commandID;
842    }
843    return RS_MESSAGE_TO_CLIENT_RESIZE;
844}
845
846bool Context::sendMessageToClient(const void *data, RsMessageToClientType cmdID,
847                                  uint32_t subID, size_t len, bool waitForSpace) const {
848    //LOGE("sendMessageToClient %i %i %i %i", cmdID, subID, len, waitForSpace);
849    if (cmdID == 0) {
850        LOGE("Attempting to send invalid command 0 to client.");
851        return false;
852    }
853    if (!waitForSpace) {
854        if (!mIO.mToClient.makeSpaceNonBlocking(len + 12)) {
855            // Not enough room, and not waiting.
856            return false;
857        }
858    }
859    //LOGE("sendMessageToClient 2");
860    uint32_t *p = (uint32_t *)mIO.mToClient.reserve(len + sizeof(subID));
861    p[0] = subID;
862    if (len > 0) {
863        memcpy(p+1, data, len);
864    }
865    mIO.mToClient.commit(cmdID, len + sizeof(subID));
866    //LOGE("sendMessageToClient 3");
867    return true;
868}
869
870void Context::initToClient() {
871    while (!mRunning) {
872        usleep(100);
873    }
874}
875
876void Context::deinitToClient() {
877    mIO.mToClient.shutdown();
878}
879
880void Context::setError(RsError e, const char *msg) const {
881    mError = e;
882    sendMessageToClient(msg, RS_MESSAGE_TO_CLIENT_ERROR, e, strlen(msg) + 1, true);
883}
884
885
886void Context::dumpDebug() const {
887    LOGE("RS Context debug %p", this);
888    LOGE("RS Context debug");
889
890    LOGE(" EGL ver %i %i", mEGL.mMajorVersion, mEGL.mMinorVersion);
891    LOGE(" EGL context %p  surface %p,  Display=%p", mEGL.mContext, mEGL.mSurface, mEGL.mDisplay);
892    LOGE(" GL vendor: %s", mGL.mVendor);
893    LOGE(" GL renderer: %s", mGL.mRenderer);
894    LOGE(" GL Version: %s", mGL.mVersion);
895    LOGE(" GL Extensions: %s", mGL.mExtensions);
896    LOGE(" GL int Versions %i %i", mGL.mMajorVersion, mGL.mMinorVersion);
897    LOGE(" RS width %i, height %i", mWidth, mHeight);
898    LOGE(" RS running %i, exit %i, paused %i", mRunning, mExit, mPaused);
899    LOGE(" RS pThreadID %li, nativeThreadID %i", mThreadId, mNativeThreadId);
900
901    LOGV("MAX Textures %i, %i  %i", mGL.mMaxVertexTextureUnits, mGL.mMaxFragmentTextureImageUnits, mGL.mMaxTextureImageUnits);
902    LOGV("MAX Attribs %i", mGL.mMaxVertexAttribs);
903    LOGV("MAX Uniforms %i, %i", mGL.mMaxVertexUniformVectors, mGL.mMaxFragmentUniformVectors);
904    LOGV("MAX Varyings %i", mGL.mMaxVaryingVectors);
905}
906
907///////////////////////////////////////////////////////////////////////////////////////////
908//
909
910namespace android {
911namespace renderscript {
912
913void rsi_ContextFinish(Context *rsc) {
914}
915
916void rsi_ContextBindRootScript(Context *rsc, RsScript vs) {
917    Script *s = static_cast<Script *>(vs);
918    rsc->setRootScript(s);
919}
920
921void rsi_ContextBindSampler(Context *rsc, uint32_t slot, RsSampler vs) {
922    Sampler *s = static_cast<Sampler *>(vs);
923
924    if (slot > RS_MAX_SAMPLER_SLOT) {
925        LOGE("Invalid sampler slot");
926        return;
927    }
928
929    s->bindToContext(&rsc->mStateSampler, slot);
930}
931
932void rsi_ContextBindProgramStore(Context *rsc, RsProgramStore vpfs) {
933    ProgramStore *pfs = static_cast<ProgramStore *>(vpfs);
934    rsc->setProgramStore(pfs);
935}
936
937void rsi_ContextBindProgramFragment(Context *rsc, RsProgramFragment vpf) {
938    ProgramFragment *pf = static_cast<ProgramFragment *>(vpf);
939    rsc->setProgramFragment(pf);
940}
941
942void rsi_ContextBindProgramRaster(Context *rsc, RsProgramRaster vpr) {
943    ProgramRaster *pr = static_cast<ProgramRaster *>(vpr);
944    rsc->setProgramRaster(pr);
945}
946
947void rsi_ContextBindProgramVertex(Context *rsc, RsProgramVertex vpv) {
948    ProgramVertex *pv = static_cast<ProgramVertex *>(vpv);
949    rsc->setProgramVertex(pv);
950}
951
952void rsi_ContextBindFont(Context *rsc, RsFont vfont) {
953    Font *font = static_cast<Font *>(vfont);
954    rsc->setFont(font);
955}
956
957void rsi_AssignName(Context *rsc, void * obj, const char *name, uint32_t len) {
958    ObjectBase *ob = static_cast<ObjectBase *>(obj);
959    rsc->assignName(ob, name, len);
960}
961
962void rsi_ObjDestroy(Context *rsc, void *optr) {
963    ObjectBase *ob = static_cast<ObjectBase *>(optr);
964    rsc->removeName(ob);
965    ob->decUserRef();
966}
967
968void rsi_ContextPause(Context *rsc) {
969    rsc->pause();
970}
971
972void rsi_ContextResume(Context *rsc) {
973    rsc->resume();
974}
975
976void rsi_ContextSetSurface(Context *rsc, uint32_t w, uint32_t h, ANativeWindow *sur) {
977    rsc->setSurface(w, h, sur);
978}
979
980void rsi_ContextSetPriority(Context *rsc, int32_t p) {
981    rsc->setPriority(p);
982}
983
984void rsi_ContextDump(Context *rsc, int32_t bits) {
985    ObjectBase::dumpAll(rsc);
986}
987
988void rsi_ContextDestroyWorker(Context *rsc) {
989    rsc->destroyWorkerThreadResources();;
990}
991
992}
993}
994
995void rsContextDestroy(RsContext vcon) {
996    LOGV("rsContextDestroy %p", vcon);
997    Context *rsc = static_cast<Context *>(vcon);
998    rsContextDestroyWorker(rsc);
999    delete rsc;
1000    LOGV("rsContextDestroy 2 %p", vcon);
1001}
1002
1003RsContext rsContextCreate(RsDevice vdev, uint32_t version) {
1004    LOGV("rsContextCreate %p", vdev);
1005    Device * dev = static_cast<Device *>(vdev);
1006    Context *rsc = Context::createContext(dev, NULL);
1007    return rsc;
1008}
1009
1010RsContext rsContextCreateGL(RsDevice vdev, uint32_t version,
1011                            RsSurfaceConfig sc, uint32_t dpi) {
1012    LOGV("rsContextCreateGL %p", vdev);
1013    Device * dev = static_cast<Device *>(vdev);
1014    Context *rsc = Context::createContext(dev, &sc);
1015    rsc->setDPI(dpi);
1016    LOGV("rsContextCreateGL ret %p ", rsc);
1017    return rsc;
1018}
1019
1020RsMessageToClientType rsContextPeekMessage(RsContext vrsc, size_t *receiveLen, uint32_t *subID, bool wait) {
1021    Context * rsc = static_cast<Context *>(vrsc);
1022    return rsc->peekMessageToClient(receiveLen, subID, wait);
1023}
1024
1025RsMessageToClientType rsContextGetMessage(RsContext vrsc, void *data, size_t *receiveLen, uint32_t *subID, size_t bufferLen, bool wait) {
1026    Context * rsc = static_cast<Context *>(vrsc);
1027    return rsc->getMessageToClient(data, receiveLen, subID, bufferLen, wait);
1028}
1029
1030void rsContextInitToClient(RsContext vrsc) {
1031    Context * rsc = static_cast<Context *>(vrsc);
1032    rsc->initToClient();
1033}
1034
1035void rsContextDeinitToClient(RsContext vrsc) {
1036    Context * rsc = static_cast<Context *>(vrsc);
1037    rsc->deinitToClient();
1038}
1039
1040// Only to be called at a3d load time, before object is visible to user
1041// not thread safe
1042void rsaGetName(RsContext con, void * obj, const char **name) {
1043    ObjectBase *ob = static_cast<ObjectBase *>(obj);
1044    (*name) = ob->getName();
1045}
1046