// CAUTION: bind texture should in context thread only
status_t SurfaceTexture::bindToAuxSlotLocked() {
if (EGL_NO_IMAGE_KHR != mBackAuxSlot->eglSlot.mEglImage) {
AuxSlot *tmp = mBackAuxSlot;
mBackAuxSlot = mFrontAuxSlot;
mFrontAuxSlot = tmp;
glBindTexture(mTexTarget, mTexName);
glEGLImageTargetTexture2DOES(mTexTarget, (GLeglImageOES)mFrontAuxSlot->eglSlot.mEglImage);
// insert fence sync object just after new front texture applied
EGLSyncKHR eglFence = mFrontAuxSlot->eglSlot.mEglFence;
if (eglFence != EGL_NO_SYNC_KHR) {
XLOGI("[%s] fence sync already exists in mFrontAuxSlot:%p, destoryed it", __func__, mFrontAuxSlot);
eglDestroySyncKHR(mEglDisplay, eglFence);
}
eglFence = eglCreateSyncKHR(mEglDisplay, EGL_SYNC_FENCE_KHR, NULL);
if (eglFence == EGL_NO_SYNC_KHR) {
XLOGE("[%s] error creating fence: %#x", __func__, eglGetError());
}
glFlush();
mFrontAuxSlot->eglSlot.mEglFence = eglFence;
}
mAuxSlotDirty = false;
return NO_ERROR;
}
status_t SurfaceTexture::doGLFenceWaitLocked() const {
EGLDisplay dpy = eglGetCurrentDisplay();
EGLContext ctx = eglGetCurrentContext();
if (mEglDisplay != dpy || mEglDisplay == EGL_NO_DISPLAY) {
ST_LOGE("doGLFenceWait: invalid current EGLDisplay");
return INVALID_OPERATION;
}
if (mEglContext != ctx || mEglContext == EGL_NO_CONTEXT) {
ST_LOGE("doGLFenceWait: invalid current EGLContext");
return INVALID_OPERATION;
}
if (mCurrentFence != NULL) {
if (useWaitSync) {
// Create an EGLSyncKHR from the current fence.
int fenceFd = mCurrentFence->dup();
if (fenceFd == -1) {
ST_LOGE("doGLFenceWait: error dup'ing fence fd: %d", errno);
return -errno;
}
EGLint attribs[] = {
EGL_SYNC_NATIVE_FENCE_FD_ANDROID, fenceFd,
EGL_NONE
};
EGLSyncKHR sync = eglCreateSyncKHR(dpy,
EGL_SYNC_NATIVE_FENCE_ANDROID, attribs);
if (sync == EGL_NO_SYNC_KHR) {
close(fenceFd);
ST_LOGE("doGLFenceWait: error creating EGL fence: %#x",
eglGetError());
return UNKNOWN_ERROR;
}
// XXX: The spec draft is inconsistent as to whether this should
// return an EGLint or void. Ignore the return value for now, as
// it's not strictly needed.
eglWaitSyncANDROID(dpy, sync, 0);
EGLint eglErr = eglGetError();
eglDestroySyncKHR(dpy, sync);
if (eglErr != EGL_SUCCESS) {
ST_LOGE("doGLFenceWait: error waiting for EGL fence: %#x",
eglErr);
return UNKNOWN_ERROR;
}
} else {
status_t err = mCurrentFence->waitForever(1000,
"SurfaceTexture::doGLFenceWaitLocked");
if (err != NO_ERROR) {
ST_LOGE("doGLFenceWait: error waiting for fence: %d", err);
return err;
}
}
}
return NO_ERROR;
}
void TransferQueue::blitTileFromQueue(GLuint fboID, BaseTileTexture* destTex,
GLuint srcTexId, GLenum srcTexTarget,
int index)
{
#if GPU_UPLOAD_WITHOUT_DRAW
glBindFramebuffer(GL_FRAMEBUFFER, fboID);
glFramebufferTexture2D(GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D,
srcTexId,
0);
glBindTexture(GL_TEXTURE_2D, destTex->m_ownTextureId);
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0,
destTex->getSize().width(),
destTex->getSize().height());
#else
// Then set up the FBO and copy the SurfTex content in.
glBindFramebuffer(GL_FRAMEBUFFER, fboID);
glFramebufferTexture2D(GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D,
destTex->m_ownTextureId,
0);
setGLStateForCopy(destTex->getSize().width(),
destTex->getSize().height());
GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if (status != GL_FRAMEBUFFER_COMPLETE) {
XLOG("Error: glCheckFramebufferStatus failed");
glBindFramebuffer(GL_FRAMEBUFFER, 0);
return;
}
// Use empty rect to set up the special matrix to draw.
SkRect rect = SkRect::MakeEmpty();
TilesManager::instance()->shader()->drawQuad(rect, srcTexId, 1.0,
srcTexTarget, GL_NEAREST);
// To workaround a sync issue on some platforms, we should insert the sync
// here while in the current FBO.
// This will essentially kick off the GPU command buffer, and the Tex Gen
// thread will then have to wait for this buffer to finish before writing
// into the same memory.
EGLDisplay dpy = eglGetCurrentDisplay();
if (m_currentDisplay != dpy)
m_currentDisplay = dpy;
if (m_currentDisplay != EGL_NO_DISPLAY) {
if (m_transferQueue[index].m_syncKHR != EGL_NO_SYNC_KHR)
eglDestroySyncKHR(m_currentDisplay, m_transferQueue[index].m_syncKHR);
m_transferQueue[index].m_syncKHR = eglCreateSyncKHR(m_currentDisplay,
EGL_SYNC_FENCE_KHR,
0);
}
GLUtils::checkEglError("CreateSyncKHR");
#endif
}
static int EGLFenceWait(EGLDisplay egl_display, int acquireFenceFd) {
int ret = 0;
EGLint attribs[] = {EGL_SYNC_NATIVE_FENCE_FD_ANDROID, acquireFenceFd,
EGL_NONE};
EGLSyncKHR egl_sync =
eglCreateSyncKHR(egl_display, EGL_SYNC_NATIVE_FENCE_ANDROID, attribs);
if (egl_sync == EGL_NO_SYNC_KHR) {
ALOGE("Failed to make EGLSyncKHR from acquireFenceFd: %s", GetEGLError());
close(acquireFenceFd);
return 1;
}
EGLint success = eglWaitSyncKHR(egl_display, egl_sync, 0);
if (success == EGL_FALSE) {
ALOGE("Failed to wait for acquire: %s", GetEGLError());
ret = 1;
}
eglDestroySyncKHR(egl_display, egl_sync);
return ret;
}
status_t SurfaceTexture::syncForReleaseLocked(EGLDisplay dpy) {
ST_LOGV("syncForReleaseLocked");
if (mUseFenceSync && mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) {
EGLSyncKHR fence = mEGLSlots[mCurrentTexture].mFence;
if (fence != EGL_NO_SYNC_KHR) {
// There is already a fence for the current slot. We need to wait
// on that before replacing it with another fence to ensure that all
// outstanding buffer accesses have completed before the producer
// accesses it.
EGLint result = eglClientWaitSyncKHR(dpy, fence, 0, 1000000000);
if (result == EGL_FALSE) {
ST_LOGE("syncForReleaseLocked: error waiting for previous "
"fence: %#x", eglGetError());
return UNKNOWN_ERROR;
} else if (result == EGL_TIMEOUT_EXPIRED_KHR) {
ST_LOGE("syncForReleaseLocked: timeout waiting for previous "
"fence");
return TIMED_OUT;
}
eglDestroySyncKHR(dpy, fence);
}
// Create a fence for the outstanding accesses in the current OpenGL ES
// context.
fence = eglCreateSyncKHR(dpy, EGL_SYNC_FENCE_KHR, NULL);
if (fence == EGL_NO_SYNC_KHR) {
ST_LOGE("syncForReleaseLocked: error creating fence: %#x",
eglGetError());
return UNKNOWN_ERROR;
}
glFlush();
mEGLSlots[mCurrentTexture].mFence = fence;
}
return OK;
}
status_t SurfaceTexture::syncForReleaseLocked(EGLDisplay dpy) {
ST_LOGV("syncForReleaseLocked");
if (mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) {
if (useNativeFenceSync) {
EGLSyncKHR sync = eglCreateSyncKHR(dpy,
EGL_SYNC_NATIVE_FENCE_ANDROID, NULL);
if (sync == EGL_NO_SYNC_KHR) {
ST_LOGE("syncForReleaseLocked: error creating EGL fence: %#x",
eglGetError());
return UNKNOWN_ERROR;
}
glFlush();
int fenceFd = eglDupNativeFenceFDANDROID(dpy, sync);
eglDestroySyncKHR(dpy, sync);
if (fenceFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
ST_LOGE("syncForReleaseLocked: error dup'ing native fence "
"fd: %#x", eglGetError());
return UNKNOWN_ERROR;
}
sp<Fence> fence(new Fence(fenceFd));
status_t err = addReleaseFenceLocked(mCurrentTexture, fence);
if (err != OK) {
ST_LOGE("syncForReleaseLocked: error adding release fence: "
"%s (%d)", strerror(-err), err);
return err;
}
} else if (mUseFenceSync) {
EGLSyncKHR fence = mEglSlots[mCurrentTexture].mEglFence;
if (fence != EGL_NO_SYNC_KHR) {
// There is already a fence for the current slot. We need to
// wait on that before replacing it with another fence to
// ensure that all outstanding buffer accesses have completed
// before the producer accesses it.
EGLint result = eglClientWaitSyncKHR(dpy, fence, 0, 1000000000);
if (result == EGL_FALSE) {
ST_LOGE("syncForReleaseLocked: error waiting for previous "
"fence: %#x", eglGetError());
return UNKNOWN_ERROR;
} else if (result == EGL_TIMEOUT_EXPIRED_KHR) {
ST_LOGE("syncForReleaseLocked: timeout waiting for previous "
"fence");
return TIMED_OUT;
}
eglDestroySyncKHR(dpy, fence);
}
// Create a fence for the outstanding accesses in the current
// OpenGL ES context.
fence = eglCreateSyncKHR(dpy, EGL_SYNC_FENCE_KHR, NULL);
if (fence == EGL_NO_SYNC_KHR) {
ST_LOGE("syncForReleaseLocked: error creating fence: %#x",
eglGetError());
return UNKNOWN_ERROR;
}
glFlush();
mEglSlots[mCurrentTexture].mEglFence = fence;
}
}
return OK;
}
static jboolean com_android_server_AssetAtlasService_upload(JNIEnv* env, jobject,
jobject graphicBuffer, jlong bitmapHandle) {
SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle);
// The goal of this method is to copy the bitmap into the GraphicBuffer
// using the GPU to swizzle the texture content
sp<GraphicBuffer> buffer(graphicBufferForJavaObject(env, graphicBuffer));
if (buffer != NULL) {
EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (display == EGL_NO_DISPLAY) return JNI_FALSE;
EGLint major;
EGLint minor;
if (!eglInitialize(display, &major, &minor)) {
ALOGW("Could not initialize EGL");
return JNI_FALSE;
}
// We're going to use a 1x1 pbuffer surface later on
// The configuration doesn't really matter for what we're trying to do
EGLint configAttrs[] = {
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_ALPHA_SIZE, 0,
EGL_DEPTH_SIZE, 0,
EGL_STENCIL_SIZE, 0,
EGL_NONE
};
EGLConfig configs[1];
EGLint configCount;
if (!eglChooseConfig(display, configAttrs, configs, 1, &configCount)) {
ALOGW("Could not select EGL configuration");
eglReleaseThread();
eglTerminate(display);
return JNI_FALSE;
}
if (configCount <= 0) {
ALOGW("Could not find EGL configuration");
eglReleaseThread();
eglTerminate(display);
return JNI_FALSE;
}
// These objects are initialized below but the default "null"
// values are used to cleanup properly at any point in the
// initialization sequence
GLuint texture = 0;
EGLImageKHR image = EGL_NO_IMAGE_KHR;
EGLSurface surface = EGL_NO_SURFACE;
EGLSyncKHR fence = EGL_NO_SYNC_KHR;
EGLint attrs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
EGLContext context = eglCreateContext(display, configs[0], EGL_NO_CONTEXT, attrs);
if (context == EGL_NO_CONTEXT) {
ALOGW("Could not create EGL context");
CLEANUP_GL_AND_RETURN(JNI_FALSE);
}
// Create the 1x1 pbuffer
EGLint surfaceAttrs[] = { EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE };
surface = eglCreatePbufferSurface(display, configs[0], surfaceAttrs);
if (surface == EGL_NO_SURFACE) {
ALOGW("Could not create EGL surface");
CLEANUP_GL_AND_RETURN(JNI_FALSE);
}
if (!eglMakeCurrent(display, surface, surface, context)) {
ALOGW("Could not change current EGL context");
CLEANUP_GL_AND_RETURN(JNI_FALSE);
}
// We use an EGLImage to access the content of the GraphicBuffer
// The EGL image is later bound to a 2D texture
EGLClientBuffer clientBuffer = (EGLClientBuffer) buffer->getNativeBuffer();
EGLint imageAttrs[] = { EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, EGL_NONE };
image = eglCreateImageKHR(display, EGL_NO_CONTEXT,
EGL_NATIVE_BUFFER_ANDROID, clientBuffer, imageAttrs);
if (image == EGL_NO_IMAGE_KHR) {
ALOGW("Could not create EGL image");
CLEANUP_GL_AND_RETURN(JNI_FALSE);
}
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image);
if (glGetError() != GL_NO_ERROR) {
ALOGW("Could not create/bind texture");
CLEANUP_GL_AND_RETURN(JNI_FALSE);
}
// Upload the content of the bitmap in the GraphicBuffer
glPixelStorei(GL_UNPACK_ALIGNMENT, bitmap->bytesPerPixel());
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bitmap->width(), bitmap->height(),
GL_RGBA, GL_UNSIGNED_BYTE, bitmap->getPixels());
if (glGetError() != GL_NO_ERROR) {
ALOGW("Could not upload to texture");
CLEANUP_GL_AND_RETURN(JNI_FALSE);
}
// The fence is used to wait for the texture upload to finish
// properly. We cannot rely on glFlush() and glFinish() as
// some drivers completely ignore these API calls
fence = eglCreateSyncKHR(display, EGL_SYNC_FENCE_KHR, NULL);
if (fence == EGL_NO_SYNC_KHR) {
ALOGW("Could not create sync fence %#x", eglGetError());
CLEANUP_GL_AND_RETURN(JNI_FALSE);
}
// The flag EGL_SYNC_FLUSH_COMMANDS_BIT_KHR will trigger a
// pipeline flush (similar to what a glFlush() would do.)
EGLint waitStatus = eglClientWaitSyncKHR(display, fence,
EGL_SYNC_FLUSH_COMMANDS_BIT_KHR, FENCE_TIMEOUT);
if (waitStatus != EGL_CONDITION_SATISFIED_KHR) {
ALOGW("Failed to wait for the fence %#x", eglGetError());
CLEANUP_GL_AND_RETURN(JNI_FALSE);
}
CLEANUP_GL_AND_RETURN(JNI_TRUE);
}
return JNI_FALSE;
}
status_t SurfaceTexture::updateTexImage() {
ST_LOGV("updateTexImage");
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
ST_LOGE("calling updateTexImage() on an abandoned SurfaceTexture");
return NO_INIT;
}
// In asynchronous mode the list is guaranteed to be one buffer
// deep, while in synchronous mode we use the oldest buffer.
if (!mQueue.empty()) {
Fifo::iterator front(mQueue.begin());
int buf = *front;
// Update the GL texture object.
EGLImageKHR image = mSlots[buf].mEglImage;
EGLDisplay dpy = eglGetCurrentDisplay();
#ifdef QCOM_HARDWARE
if (isGPUSupportedFormat(mSlots[buf].mGraphicBuffer->format)) {
// Update the GL texture object.
EGLImageKHR image = mSlots[buf].mEglImage;
#else
if (image == EGL_NO_IMAGE_KHR) {
if (mSlots[buf].mGraphicBuffer == 0) {
ST_LOGE("buffer at slot %d is null", buf);
return BAD_VALUE;
}
image = createImage(dpy, mSlots[buf].mGraphicBuffer);
mSlots[buf].mEglImage = image;
mSlots[buf].mEglDisplay = dpy;
#endif
if (image == EGL_NO_IMAGE_KHR) {
#ifdef QCOM_HARDWARE
EGLDisplay dpy = eglGetCurrentDisplay();
if (mSlots[buf].mGraphicBuffer == 0) {
ST_LOGE("buffer at slot %d is null", buf);
return BAD_VALUE;
}
image = createImage(dpy, mSlots[buf].mGraphicBuffer);
mSlots[buf].mEglImage = image;
mSlots[buf].mEglDisplay = dpy;
if (image == EGL_NO_IMAGE_KHR) {
#endif
// NOTE: if dpy was invalid, createImage() is guaranteed to
// fail. so we'd end up here.
return -EINVAL;
}
}
GLint error;
while ((error = glGetError()) != GL_NO_ERROR) {
ST_LOGW("updateTexImage: clearing GL error: %#04x", error);
}
glBindTexture(mTexTarget, mTexName);
glEGLImageTargetTexture2DOES(mTexTarget, (GLeglImageOES)image);
bool failed = false;
while ((error = glGetError()) != GL_NO_ERROR) {
ST_LOGE("error binding external texture image %p (slot %d): %#04x",
image, buf, error);
failed = true;
}
if (failed) {
return -EINVAL;
}
#ifdef QCOM_HARDWARE
}
#endif
if (mCurrentTexture != INVALID_BUFFER_SLOT) {
if (mUseFenceSync) {
EGLSyncKHR fence = eglCreateSyncKHR(dpy, EGL_SYNC_FENCE_KHR,
NULL);
if (fence == EGL_NO_SYNC_KHR) {
LOGE("updateTexImage: error creating fence: %#x",
eglGetError());
return -EINVAL;
}
glFlush();
mSlots[mCurrentTexture].mFence = fence;
}
}
ST_LOGV("updateTexImage: (slot=%d buf=%p) -> (slot=%d buf=%p)",
mCurrentTexture,
mCurrentTextureBuf != NULL ? mCurrentTextureBuf->handle : 0,
buf, mSlots[buf].mGraphicBuffer->handle);
if (mCurrentTexture != INVALID_BUFFER_SLOT) {
// The current buffer becomes FREE if it was still in the queued
// state. If it has already been given to the client
// (synchronous mode), then it stays in DEQUEUED state.
if (mSlots[mCurrentTexture].mBufferState == BufferSlot::QUEUED) {
mSlots[mCurrentTexture].mBufferState = BufferSlot::FREE;
}
}
// Update the SurfaceTexture state.
mCurrentTexture = buf;
mCurrentTextureBuf = mSlots[buf].mGraphicBuffer;
mCurrentCrop = mSlots[buf].mCrop;
mCurrentTransform = mSlots[buf].mTransform;
mCurrentScalingMode = mSlots[buf].mScalingMode;
mCurrentTimestamp = mSlots[buf].mTimestamp;
computeCurrentTransformMatrix();
// Now that we've passed the point at which failures can happen,
// it's safe to remove the buffer from the front of the queue.
mQueue.erase(front);
mDequeueCondition.signal();
} else {
// We always bind the texture even if we don't update its contents.
glBindTexture(mTexTarget, mTexName);
}
return OK;
}
bool SurfaceTexture::isExternalFormat(uint32_t format)
{
switch (format) {
// supported YUV formats
case HAL_PIXEL_FORMAT_YV12:
// Legacy/deprecated YUV formats
case HAL_PIXEL_FORMAT_YCbCr_422_SP:
case HAL_PIXEL_FORMAT_YCrCb_420_SP:
case HAL_PIXEL_FORMAT_YCbCr_422_I:
return true;
}
// Any OEM format needs to be considered
if (format>=0x100 && format<=0x1FF)
return true;
return false;
}
GLenum SurfaceTexture::getCurrentTextureTarget() const {
return mTexTarget;
}
void SurfaceTexture::getTransformMatrix(float mtx[16]) {
Mutex::Autolock lock(mMutex);
memcpy(mtx, mCurrentTransformMatrix, sizeof(mCurrentTransformMatrix));
}
void ContextSwitchRenderer::drawWorkload() {
SCOPED_TRACE();
if (mWorkload > 8) {
return; // This test does not support higher workloads.
}
// Set the background clear color to black.
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
// No culling of back faces
glDisable(GL_CULL_FACE);
// No depth testing
glDisable(GL_DEPTH_TEST);
EGLSyncKHR fence = eglCreateSyncKHR(mEglDisplay, EGL_SYNC_FENCE_KHR, NULL);
const int TOTAL_NUM_CONTEXTS = NUM_WORKER_CONTEXTS + 1;
const float TRANSLATION = 0.9f - (TOTAL_NUM_CONTEXTS * 0.2f);
for (int i = 0; i < TOTAL_NUM_CONTEXTS; i++) {
eglWaitSyncKHR(mEglDisplay, fence, 0);
eglDestroySyncKHR(mEglDisplay, fence);
glUseProgram(mProgramId);
// Set the texture.
glActiveTexture (GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, mTextureId);
glUniform1i(mTextureUniformHandle, 0);
// Set the x translate.
glUniform1f(mTranslateUniformHandle, (i * 0.2f) + TRANSLATION);
glEnableVertexAttribArray(mPositionHandle);
glEnableVertexAttribArray(mTexCoordHandle);
glVertexAttribPointer(mPositionHandle, 3, GL_FLOAT, false, 0, CS_VERTICES);
glVertexAttribPointer(mTexCoordHandle, 2, GL_FLOAT, false, 0, CS_TEX_COORDS);
glDrawArrays(GL_TRIANGLES, 0, CS_NUM_VERTICES);
fence = eglCreateSyncKHR(mEglDisplay, EGL_SYNC_FENCE_KHR, NULL);
// Switch to next context.
if (i < (mWorkload - 1)) {
eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mContexts[i]);
// Switch to FBO and re-attach.
if (mOffscreen) {
glBindFramebuffer(GL_FRAMEBUFFER, mFboIds[i]);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT,
GL_RENDERBUFFER, mFboDepthId);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D, mFboTexId, 0);
glViewport(0, 0, mFboWidth, mFboHeight);
}
}
GLuint err = glGetError();
if (err != GL_NO_ERROR) {
ALOGE("GLError %d in drawWorkload", err);
break;
}
}
eglWaitSyncKHR(mEglDisplay, fence, 0);
eglDestroySyncKHR(mEglDisplay, fence);
// Switch back to the main context.
eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mEglContext);
if (mOffscreen) {
glBindFramebuffer(GL_FRAMEBUFFER, mFboId);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT,
GL_RENDERBUFFER, mFboDepthId);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D, mFboTexId, 0);
glViewport(0, 0, mFboWidth, mFboHeight);
}
}
void EglManager::fence() {
EGLSyncKHR fence = eglCreateSyncKHR(mEglDisplay, EGL_SYNC_FENCE_KHR, NULL);
eglClientWaitSyncKHR(mEglDisplay, fence, EGL_SYNC_FLUSH_COMMANDS_BIT_KHR, EGL_FOREVER_KHR);
eglDestroySyncKHR(mEglDisplay, fence);
}
