| /* |
| * Copyright (C) 2010 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. |
| */ |
| |
| #define LOG_TAG "GLConsumer" |
| #define ATRACE_TAG ATRACE_TAG_GRAPHICS |
| //#define LOG_NDEBUG 0 |
| |
| #define GL_GLEXT_PROTOTYPES |
| #define EGL_EGLEXT_PROTOTYPES |
| |
| #include <EGL/egl.h> |
| #include <EGL/eglext.h> |
| #include <GLES2/gl2.h> |
| #include <GLES2/gl2ext.h> |
| #include <cutils/compiler.h> |
| |
| #include <hardware/hardware.h> |
| |
| #include <gui/BufferItem.h> |
| #include <gui/GLConsumer.h> |
| #include <gui/IGraphicBufferAlloc.h> |
| #include <gui/ISurfaceComposer.h> |
| #include <gui/SurfaceComposerClient.h> |
| |
| #include <private/gui/ComposerService.h> |
| #include <private/gui/SyncFeatures.h> |
| |
| #include <utils/Log.h> |
| #include <utils/String8.h> |
| #include <utils/Trace.h> |
| |
| EGLAPI const char* eglQueryStringImplementationANDROID(EGLDisplay dpy, EGLint name); |
| #define CROP_EXT_STR "EGL_ANDROID_image_crop" |
| |
| namespace android { |
| |
| // Macros for including the GLConsumer name in log messages |
| #define GLC_LOGV(x, ...) ALOGV("[%s] " x, mName.string(), ##__VA_ARGS__) |
| #define GLC_LOGD(x, ...) ALOGD("[%s] " x, mName.string(), ##__VA_ARGS__) |
| //#define GLC_LOGI(x, ...) ALOGI("[%s] " x, mName.string(), ##__VA_ARGS__) |
| #define GLC_LOGW(x, ...) ALOGW("[%s] " x, mName.string(), ##__VA_ARGS__) |
| #define GLC_LOGE(x, ...) ALOGE("[%s] " x, mName.string(), ##__VA_ARGS__) |
| |
| static const struct { |
| uint32_t width, height; |
| char const* bits; |
| } kDebugData = { 15, 12, |
| "_______________" |
| "_______________" |
| "_____XX_XX_____" |
| "__X_X_____X_X__" |
| "__X_XXXXXXX_X__" |
| "__XXXXXXXXXXX__" |
| "___XX_XXX_XX___" |
| "____XXXXXXX____" |
| "_____X___X_____" |
| "____X_____X____" |
| "_______________" |
| "_______________" |
| }; |
| |
| // Transform matrices |
| static float mtxIdentity[16] = { |
| 1, 0, 0, 0, |
| 0, 1, 0, 0, |
| 0, 0, 1, 0, |
| 0, 0, 0, 1, |
| }; |
| static float mtxFlipH[16] = { |
| -1, 0, 0, 0, |
| 0, 1, 0, 0, |
| 0, 0, 1, 0, |
| 1, 0, 0, 1, |
| }; |
| static float mtxFlipV[16] = { |
| 1, 0, 0, 0, |
| 0, -1, 0, 0, |
| 0, 0, 1, 0, |
| 0, 1, 0, 1, |
| }; |
| static float mtxRot90[16] = { |
| 0, 1, 0, 0, |
| -1, 0, 0, 0, |
| 0, 0, 1, 0, |
| 1, 0, 0, 1, |
| }; |
| |
| static void mtxMul(float out[16], const float a[16], const float b[16]); |
| |
| Mutex GLConsumer::sStaticInitLock; |
| sp<GraphicBuffer> GLConsumer::sReleasedTexImageBuffer; |
| |
| static bool hasEglAndroidImageCropImpl() { |
| EGLDisplay dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY); |
| const char* exts = eglQueryStringImplementationANDROID(dpy, EGL_EXTENSIONS); |
| size_t cropExtLen = strlen(CROP_EXT_STR); |
| size_t extsLen = strlen(exts); |
| bool equal = !strcmp(CROP_EXT_STR, exts); |
| bool atStart = !strncmp(CROP_EXT_STR " ", exts, cropExtLen+1); |
| bool atEnd = (cropExtLen+1) < extsLen && |
| !strcmp(" " CROP_EXT_STR, exts + extsLen - (cropExtLen+1)); |
| bool inMiddle = strstr(exts, " " CROP_EXT_STR " "); |
| return equal || atStart || atEnd || inMiddle; |
| } |
| |
| static bool hasEglAndroidImageCrop() { |
| // Only compute whether the extension is present once the first time this |
| // function is called. |
| static bool hasIt = hasEglAndroidImageCropImpl(); |
| return hasIt; |
| } |
| |
| static bool isEglImageCroppable(const Rect& crop) { |
| return hasEglAndroidImageCrop() && (crop.left == 0 && crop.top == 0); |
| } |
| |
| GLConsumer::GLConsumer(const sp<IGraphicBufferConsumer>& bq, uint32_t tex, |
| uint32_t texTarget, bool useFenceSync, bool isControlledByApp) : |
| ConsumerBase(bq, isControlledByApp), |
| mCurrentCrop(Rect::EMPTY_RECT), |
| mCurrentTransform(0), |
| mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE), |
| mCurrentFence(Fence::NO_FENCE), |
| mCurrentTimestamp(0), |
| mCurrentFrameNumber(0), |
| mDefaultWidth(1), |
| mDefaultHeight(1), |
| mFilteringEnabled(true), |
| mTexName(tex), |
| mUseFenceSync(useFenceSync), |
| mTexTarget(texTarget), |
| mEglDisplay(EGL_NO_DISPLAY), |
| mEglContext(EGL_NO_CONTEXT), |
| mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT), |
| mAttached(true) |
| { |
| GLC_LOGV("GLConsumer"); |
| |
| memcpy(mCurrentTransformMatrix, mtxIdentity, |
| sizeof(mCurrentTransformMatrix)); |
| |
| mConsumer->setConsumerUsageBits(DEFAULT_USAGE_FLAGS); |
| } |
| |
| GLConsumer::GLConsumer(const sp<IGraphicBufferConsumer>& bq, uint32_t texTarget, |
| bool useFenceSync, bool isControlledByApp) : |
| ConsumerBase(bq, isControlledByApp), |
| mCurrentCrop(Rect::EMPTY_RECT), |
| mCurrentTransform(0), |
| mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE), |
| mCurrentFence(Fence::NO_FENCE), |
| mCurrentTimestamp(0), |
| mCurrentFrameNumber(0), |
| mDefaultWidth(1), |
| mDefaultHeight(1), |
| mFilteringEnabled(true), |
| mTexName(0), |
| mUseFenceSync(useFenceSync), |
| mTexTarget(texTarget), |
| mEglDisplay(EGL_NO_DISPLAY), |
| mEglContext(EGL_NO_CONTEXT), |
| mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT), |
| mAttached(false) |
| { |
| GLC_LOGV("GLConsumer"); |
| |
| memcpy(mCurrentTransformMatrix, mtxIdentity, |
| sizeof(mCurrentTransformMatrix)); |
| |
| mConsumer->setConsumerUsageBits(DEFAULT_USAGE_FLAGS); |
| } |
| |
| status_t GLConsumer::setDefaultBufferSize(uint32_t w, uint32_t h) |
| { |
| Mutex::Autolock lock(mMutex); |
| mDefaultWidth = w; |
| mDefaultHeight = h; |
| return mConsumer->setDefaultBufferSize(w, h); |
| } |
| |
| status_t GLConsumer::updateTexImage() { |
| ATRACE_CALL(); |
| GLC_LOGV("updateTexImage"); |
| Mutex::Autolock lock(mMutex); |
| |
| if (mAbandoned) { |
| GLC_LOGE("updateTexImage: GLConsumer is abandoned!"); |
| return NO_INIT; |
| } |
| |
| // Make sure the EGL state is the same as in previous calls. |
| status_t err = checkAndUpdateEglStateLocked(); |
| if (err != NO_ERROR) { |
| return err; |
| } |
| |
| BufferItem item; |
| |
| // Acquire the next buffer. |
| // In asynchronous mode the list is guaranteed to be one buffer |
| // deep, while in synchronous mode we use the oldest buffer. |
| err = acquireBufferLocked(&item, 0); |
| if (err != NO_ERROR) { |
| if (err == BufferQueue::NO_BUFFER_AVAILABLE) { |
| // We always bind the texture even if we don't update its contents. |
| GLC_LOGV("updateTexImage: no buffers were available"); |
| glBindTexture(mTexTarget, mTexName); |
| err = NO_ERROR; |
| } else { |
| GLC_LOGE("updateTexImage: acquire failed: %s (%d)", |
| strerror(-err), err); |
| } |
| return err; |
| } |
| |
| // Release the previous buffer. |
| err = updateAndReleaseLocked(item); |
| if (err != NO_ERROR) { |
| // We always bind the texture. |
| glBindTexture(mTexTarget, mTexName); |
| return err; |
| } |
| |
| // Bind the new buffer to the GL texture, and wait until it's ready. |
| return bindTextureImageLocked(); |
| } |
| |
| |
| status_t GLConsumer::releaseTexImage() { |
| ATRACE_CALL(); |
| GLC_LOGV("releaseTexImage"); |
| Mutex::Autolock lock(mMutex); |
| |
| if (mAbandoned) { |
| GLC_LOGE("releaseTexImage: GLConsumer is abandoned!"); |
| return NO_INIT; |
| } |
| |
| // Make sure the EGL state is the same as in previous calls. |
| status_t err = NO_ERROR; |
| |
| if (mAttached) { |
| err = checkAndUpdateEglStateLocked(true); |
| if (err != NO_ERROR) { |
| return err; |
| } |
| } else { |
| // if we're detached, no need to validate EGL's state -- we won't use it. |
| } |
| |
| // Update the GLConsumer state. |
| int buf = mCurrentTexture; |
| if (buf != BufferQueue::INVALID_BUFFER_SLOT) { |
| |
| GLC_LOGV("releaseTexImage: (slot=%d, mAttached=%d)", buf, mAttached); |
| |
| if (mAttached) { |
| // Do whatever sync ops we need to do before releasing the slot. |
| err = syncForReleaseLocked(mEglDisplay); |
| if (err != NO_ERROR) { |
| GLC_LOGE("syncForReleaseLocked failed (slot=%d), err=%d", buf, err); |
| return err; |
| } |
| } else { |
| // if we're detached, we just use the fence that was created in detachFromContext() |
| // so... basically, nothing more to do here. |
| } |
| |
| err = releaseBufferLocked(buf, mSlots[buf].mGraphicBuffer, mEglDisplay, EGL_NO_SYNC_KHR); |
| if (err < NO_ERROR) { |
| GLC_LOGE("releaseTexImage: failed to release buffer: %s (%d)", |
| strerror(-err), err); |
| return err; |
| } |
| |
| if (mReleasedTexImage == NULL) { |
| mReleasedTexImage = new EglImage(getDebugTexImageBuffer()); |
| } |
| |
| mCurrentTexture = BufferQueue::INVALID_BUFFER_SLOT; |
| mCurrentTextureImage = mReleasedTexImage; |
| mCurrentCrop.makeInvalid(); |
| mCurrentTransform = 0; |
| mCurrentTimestamp = 0; |
| mCurrentFence = Fence::NO_FENCE; |
| |
| if (mAttached) { |
| // This binds a dummy buffer (mReleasedTexImage). |
| status_t result = bindTextureImageLocked(); |
| if (result != NO_ERROR) { |
| return result; |
| } |
| } else { |
| // detached, don't touch the texture (and we may not even have an |
| // EGLDisplay here. |
| } |
| } |
| |
| return NO_ERROR; |
| } |
| |
| sp<GraphicBuffer> GLConsumer::getDebugTexImageBuffer() { |
| Mutex::Autolock _l(sStaticInitLock); |
| if (CC_UNLIKELY(sReleasedTexImageBuffer == NULL)) { |
| // The first time, create the debug texture in case the application |
| // continues to use it. |
| sp<GraphicBuffer> buffer = new GraphicBuffer( |
| kDebugData.width, kDebugData.height, PIXEL_FORMAT_RGBA_8888, |
| GraphicBuffer::USAGE_SW_WRITE_RARELY); |
| uint32_t* bits; |
| buffer->lock(GraphicBuffer::USAGE_SW_WRITE_RARELY, reinterpret_cast<void**>(&bits)); |
| uint32_t stride = buffer->getStride(); |
| uint32_t height = buffer->getHeight(); |
| memset(bits, 0, stride * height * 4); |
| for (uint32_t y = 0; y < kDebugData.height; y++) { |
| for (uint32_t x = 0; x < kDebugData.width; x++) { |
| bits[x] = (kDebugData.bits[y + kDebugData.width + x] == 'X') ? |
| 0xFF000000 : 0xFFFFFFFF; |
| } |
| bits += stride; |
| } |
| buffer->unlock(); |
| sReleasedTexImageBuffer = buffer; |
| } |
| return sReleasedTexImageBuffer; |
| } |
| |
| status_t GLConsumer::acquireBufferLocked(BufferItem *item, |
| nsecs_t presentWhen, uint64_t maxFrameNumber) { |
| status_t err = ConsumerBase::acquireBufferLocked(item, presentWhen, |
| maxFrameNumber); |
| if (err != NO_ERROR) { |
| return err; |
| } |
| |
| // If item->mGraphicBuffer is not null, this buffer has not been acquired |
| // before, so any prior EglImage created is using a stale buffer. This |
| // replaces any old EglImage with a new one (using the new buffer). |
| if (item->mGraphicBuffer != NULL) { |
| int slot = item->mSlot; |
| mEglSlots[slot].mEglImage = new EglImage(item->mGraphicBuffer); |
| } |
| |
| return NO_ERROR; |
| } |
| |
| status_t GLConsumer::releaseBufferLocked(int buf, |
| sp<GraphicBuffer> graphicBuffer, |
| EGLDisplay display, EGLSyncKHR eglFence) { |
| // release the buffer if it hasn't already been discarded by the |
| // BufferQueue. This can happen, for example, when the producer of this |
| // buffer has reallocated the original buffer slot after this buffer |
| // was acquired. |
| status_t err = ConsumerBase::releaseBufferLocked( |
| buf, graphicBuffer, display, eglFence); |
| mEglSlots[buf].mEglFence = EGL_NO_SYNC_KHR; |
| return err; |
| } |
| |
| status_t GLConsumer::updateAndReleaseLocked(const BufferItem& item, |
| PendingRelease* pendingRelease) |
| { |
| status_t err = NO_ERROR; |
| |
| int slot = item.mSlot; |
| |
| if (!mAttached) { |
| GLC_LOGE("updateAndRelease: GLConsumer is not attached to an OpenGL " |
| "ES context"); |
| releaseBufferLocked(slot, mSlots[slot].mGraphicBuffer, |
| mEglDisplay, EGL_NO_SYNC_KHR); |
| return INVALID_OPERATION; |
| } |
| |
| // Confirm state. |
| err = checkAndUpdateEglStateLocked(); |
| if (err != NO_ERROR) { |
| releaseBufferLocked(slot, mSlots[slot].mGraphicBuffer, |
| mEglDisplay, EGL_NO_SYNC_KHR); |
| return err; |
| } |
| |
| // For investigating b/27674961 |
| if (mEglSlots[slot].mEglImage == nullptr) { |
| ALOGE("If you see this message in a log please post the log to " |
| "b/27674961"); |
| ALOGE("slot = %d, mCurrentTexture = %d, mCurrentTextureImage = %p", |
| slot, mCurrentTexture, mCurrentTextureImage.get()); |
| for (int i = 0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) { |
| ALOGE("mEglSlots[%d].mEglImage = %p", i, |
| mEglSlots[i].mEglImage.get()); |
| } |
| String8 dump; |
| dumpLocked(dump, ""); |
| ALOGE("%s", dump.string()); |
| } |
| |
| // Ensure we have a valid EglImageKHR for the slot, creating an EglImage |
| // if nessessary, for the gralloc buffer currently in the slot in |
| // ConsumerBase. |
| // We may have to do this even when item.mGraphicBuffer == NULL (which |
| // means the buffer was previously acquired). |
| err = mEglSlots[slot].mEglImage->createIfNeeded(mEglDisplay, item.mCrop); |
| if (err != NO_ERROR) { |
| GLC_LOGW("updateAndRelease: unable to createImage on display=%p slot=%d", |
| mEglDisplay, slot); |
| releaseBufferLocked(slot, mSlots[slot].mGraphicBuffer, |
| mEglDisplay, EGL_NO_SYNC_KHR); |
| return UNKNOWN_ERROR; |
| } |
| |
| // Do whatever sync ops we need to do before releasing the old slot. |
| if (slot != mCurrentTexture) { |
| err = syncForReleaseLocked(mEglDisplay); |
| if (err != NO_ERROR) { |
| // Release the buffer we just acquired. It's not safe to |
| // release the old buffer, so instead we just drop the new frame. |
| // As we are still under lock since acquireBuffer, it is safe to |
| // release by slot. |
| releaseBufferLocked(slot, mSlots[slot].mGraphicBuffer, |
| mEglDisplay, EGL_NO_SYNC_KHR); |
| return err; |
| } |
| } |
| |
| GLC_LOGV("updateAndRelease: (slot=%d buf=%p) -> (slot=%d buf=%p)", |
| mCurrentTexture, mCurrentTextureImage != NULL ? |
| mCurrentTextureImage->graphicBufferHandle() : 0, |
| slot, mSlots[slot].mGraphicBuffer->handle); |
| |
| // Hang onto the pointer so that it isn't freed in the call to |
| // releaseBufferLocked() if we're in shared buffer mode and both buffers are |
| // the same. |
| sp<EglImage> nextTextureImage = mEglSlots[slot].mEglImage; |
| |
| // release old buffer |
| if (mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) { |
| if (pendingRelease == nullptr) { |
| status_t status = releaseBufferLocked( |
| mCurrentTexture, mCurrentTextureImage->graphicBuffer(), |
| mEglDisplay, mEglSlots[mCurrentTexture].mEglFence); |
| if (status < NO_ERROR) { |
| GLC_LOGE("updateAndRelease: failed to release buffer: %s (%d)", |
| strerror(-status), status); |
| err = status; |
| // keep going, with error raised [?] |
| } |
| } else { |
| pendingRelease->currentTexture = mCurrentTexture; |
| pendingRelease->graphicBuffer = |
| mCurrentTextureImage->graphicBuffer(); |
| pendingRelease->display = mEglDisplay; |
| pendingRelease->fence = mEglSlots[mCurrentTexture].mEglFence; |
| pendingRelease->isPending = true; |
| } |
| } |
| |
| // Update the GLConsumer state. |
| mCurrentTexture = slot; |
| mCurrentTextureImage = nextTextureImage; |
| mCurrentCrop = item.mCrop; |
| mCurrentTransform = item.mTransform; |
| mCurrentScalingMode = item.mScalingMode; |
| mCurrentTimestamp = item.mTimestamp; |
| mCurrentFence = item.mFence; |
| mCurrentFrameNumber = item.mFrameNumber; |
| |
| computeCurrentTransformMatrixLocked(); |
| |
| return err; |
| } |
| |
| status_t GLConsumer::bindTextureImageLocked() { |
| if (mEglDisplay == EGL_NO_DISPLAY) { |
| ALOGE("bindTextureImage: invalid display"); |
| return INVALID_OPERATION; |
| } |
| |
| GLenum error; |
| while ((error = glGetError()) != GL_NO_ERROR) { |
| GLC_LOGW("bindTextureImage: clearing GL error: %#04x", error); |
| } |
| |
| glBindTexture(mTexTarget, mTexName); |
| if (mCurrentTexture == BufferQueue::INVALID_BUFFER_SLOT && |
| mCurrentTextureImage == NULL) { |
| GLC_LOGE("bindTextureImage: no currently-bound texture"); |
| return NO_INIT; |
| } |
| |
| status_t err = mCurrentTextureImage->createIfNeeded(mEglDisplay, |
| mCurrentCrop); |
| if (err != NO_ERROR) { |
| GLC_LOGW("bindTextureImage: can't create image on display=%p slot=%d", |
| mEglDisplay, mCurrentTexture); |
| return UNKNOWN_ERROR; |
| } |
| mCurrentTextureImage->bindToTextureTarget(mTexTarget); |
| |
| // In the rare case that the display is terminated and then initialized |
| // again, we can't detect that the display changed (it didn't), but the |
| // image is invalid. In this case, repeat the exact same steps while |
| // forcing the creation of a new image. |
| if ((error = glGetError()) != GL_NO_ERROR) { |
| glBindTexture(mTexTarget, mTexName); |
| status_t result = mCurrentTextureImage->createIfNeeded(mEglDisplay, |
| mCurrentCrop, |
| true); |
| if (result != NO_ERROR) { |
| GLC_LOGW("bindTextureImage: can't create image on display=%p slot=%d", |
| mEglDisplay, mCurrentTexture); |
| return UNKNOWN_ERROR; |
| } |
| mCurrentTextureImage->bindToTextureTarget(mTexTarget); |
| if ((error = glGetError()) != GL_NO_ERROR) { |
| GLC_LOGE("bindTextureImage: error binding external image: %#04x", error); |
| return UNKNOWN_ERROR; |
| } |
| } |
| |
| // Wait for the new buffer to be ready. |
| return doGLFenceWaitLocked(); |
| } |
| |
| status_t GLConsumer::checkAndUpdateEglStateLocked(bool contextCheck) { |
| EGLDisplay dpy = eglGetCurrentDisplay(); |
| EGLContext ctx = eglGetCurrentContext(); |
| |
| if (!contextCheck) { |
| // if this is the first time we're called, mEglDisplay/mEglContext have |
| // never been set, so don't error out (below). |
| if (mEglDisplay == EGL_NO_DISPLAY) { |
| mEglDisplay = dpy; |
| } |
| if (mEglContext == EGL_NO_CONTEXT) { |
| mEglContext = ctx; |
| } |
| } |
| |
| if (mEglDisplay != dpy || dpy == EGL_NO_DISPLAY) { |
| GLC_LOGE("checkAndUpdateEglState: invalid current EGLDisplay"); |
| return INVALID_OPERATION; |
| } |
| |
| if (mEglContext != ctx || ctx == EGL_NO_CONTEXT) { |
| GLC_LOGE("checkAndUpdateEglState: invalid current EGLContext"); |
| return INVALID_OPERATION; |
| } |
| |
| mEglDisplay = dpy; |
| mEglContext = ctx; |
| return NO_ERROR; |
| } |
| |
| void GLConsumer::setReleaseFence(const sp<Fence>& fence) { |
| if (fence->isValid() && |
| mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) { |
| status_t err = addReleaseFence(mCurrentTexture, |
| mCurrentTextureImage->graphicBuffer(), fence); |
| if (err != OK) { |
| GLC_LOGE("setReleaseFence: failed to add the fence: %s (%d)", |
| strerror(-err), err); |
| } |
| } |
| } |
| |
| status_t GLConsumer::detachFromContext() { |
| ATRACE_CALL(); |
| GLC_LOGV("detachFromContext"); |
| Mutex::Autolock lock(mMutex); |
| |
| if (mAbandoned) { |
| GLC_LOGE("detachFromContext: abandoned GLConsumer"); |
| return NO_INIT; |
| } |
| |
| if (!mAttached) { |
| GLC_LOGE("detachFromContext: GLConsumer is not attached to a " |
| "context"); |
| return INVALID_OPERATION; |
| } |
| |
| EGLDisplay dpy = eglGetCurrentDisplay(); |
| EGLContext ctx = eglGetCurrentContext(); |
| |
| if (mEglDisplay != dpy && mEglDisplay != EGL_NO_DISPLAY) { |
| GLC_LOGE("detachFromContext: invalid current EGLDisplay"); |
| return INVALID_OPERATION; |
| } |
| |
| if (mEglContext != ctx && mEglContext != EGL_NO_CONTEXT) { |
| GLC_LOGE("detachFromContext: invalid current EGLContext"); |
| return INVALID_OPERATION; |
| } |
| |
| if (dpy != EGL_NO_DISPLAY && ctx != EGL_NO_CONTEXT) { |
| status_t err = syncForReleaseLocked(dpy); |
| if (err != OK) { |
| return err; |
| } |
| |
| glDeleteTextures(1, &mTexName); |
| } |
| |
| mEglDisplay = EGL_NO_DISPLAY; |
| mEglContext = EGL_NO_CONTEXT; |
| mAttached = false; |
| |
| return OK; |
| } |
| |
| status_t GLConsumer::attachToContext(uint32_t tex) { |
| ATRACE_CALL(); |
| GLC_LOGV("attachToContext"); |
| Mutex::Autolock lock(mMutex); |
| |
| if (mAbandoned) { |
| GLC_LOGE("attachToContext: abandoned GLConsumer"); |
| return NO_INIT; |
| } |
| |
| if (mAttached) { |
| GLC_LOGE("attachToContext: GLConsumer is already attached to a " |
| "context"); |
| return INVALID_OPERATION; |
| } |
| |
| EGLDisplay dpy = eglGetCurrentDisplay(); |
| EGLContext ctx = eglGetCurrentContext(); |
| |
| if (dpy == EGL_NO_DISPLAY) { |
| GLC_LOGE("attachToContext: invalid current EGLDisplay"); |
| return INVALID_OPERATION; |
| } |
| |
| if (ctx == EGL_NO_CONTEXT) { |
| GLC_LOGE("attachToContext: invalid current EGLContext"); |
| return INVALID_OPERATION; |
| } |
| |
| // We need to bind the texture regardless of whether there's a current |
| // buffer. |
| glBindTexture(mTexTarget, GLuint(tex)); |
| |
| mEglDisplay = dpy; |
| mEglContext = ctx; |
| mTexName = tex; |
| mAttached = true; |
| |
| if (mCurrentTextureImage != NULL) { |
| // This may wait for a buffer a second time. This is likely required if |
| // this is a different context, since otherwise the wait could be skipped |
| // by bouncing through another context. For the same context the extra |
| // wait is redundant. |
| status_t err = bindTextureImageLocked(); |
| if (err != NO_ERROR) { |
| return err; |
| } |
| } |
| |
| return OK; |
| } |
| |
| |
| status_t GLConsumer::syncForReleaseLocked(EGLDisplay dpy) { |
| GLC_LOGV("syncForReleaseLocked"); |
| |
| if (mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) { |
| if (SyncFeatures::getInstance().useNativeFenceSync()) { |
| EGLSyncKHR sync = eglCreateSyncKHR(dpy, |
| EGL_SYNC_NATIVE_FENCE_ANDROID, NULL); |
| if (sync == EGL_NO_SYNC_KHR) { |
| GLC_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) { |
| GLC_LOGE("syncForReleaseLocked: error dup'ing native fence " |
| "fd: %#x", eglGetError()); |
| return UNKNOWN_ERROR; |
| } |
| sp<Fence> fence(new Fence(fenceFd)); |
| status_t err = addReleaseFenceLocked(mCurrentTexture, |
| mCurrentTextureImage->graphicBuffer(), fence); |
| if (err != OK) { |
| GLC_LOGE("syncForReleaseLocked: error adding release fence: " |
| "%s (%d)", strerror(-err), err); |
| return err; |
| } |
| } else if (mUseFenceSync && SyncFeatures::getInstance().useFenceSync()) { |
| 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) { |
| GLC_LOGE("syncForReleaseLocked: error waiting for previous " |
| "fence: %#x", eglGetError()); |
| return UNKNOWN_ERROR; |
| } else if (result == EGL_TIMEOUT_EXPIRED_KHR) { |
| GLC_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) { |
| GLC_LOGE("syncForReleaseLocked: error creating fence: %#x", |
| eglGetError()); |
| return UNKNOWN_ERROR; |
| } |
| glFlush(); |
| mEglSlots[mCurrentTexture].mEglFence = fence; |
| } |
| } |
| |
| return OK; |
| } |
| |
| bool GLConsumer::isExternalFormat(PixelFormat 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; |
| } |
| |
| uint32_t GLConsumer::getCurrentTextureTarget() const { |
| return mTexTarget; |
| } |
| |
| void GLConsumer::getTransformMatrix(float mtx[16]) { |
| Mutex::Autolock lock(mMutex); |
| memcpy(mtx, mCurrentTransformMatrix, sizeof(mCurrentTransformMatrix)); |
| } |
| |
| void GLConsumer::setFilteringEnabled(bool enabled) { |
| Mutex::Autolock lock(mMutex); |
| if (mAbandoned) { |
| GLC_LOGE("setFilteringEnabled: GLConsumer is abandoned!"); |
| return; |
| } |
| bool needsRecompute = mFilteringEnabled != enabled; |
| mFilteringEnabled = enabled; |
| |
| if (needsRecompute && mCurrentTextureImage==NULL) { |
| GLC_LOGD("setFilteringEnabled called with mCurrentTextureImage == NULL"); |
| } |
| |
| if (needsRecompute && mCurrentTextureImage != NULL) { |
| computeCurrentTransformMatrixLocked(); |
| } |
| } |
| |
| void GLConsumer::computeCurrentTransformMatrixLocked() { |
| GLC_LOGV("computeCurrentTransformMatrixLocked"); |
| |
| float xform[16]; |
| for (int i = 0; i < 16; i++) { |
| xform[i] = mtxIdentity[i]; |
| } |
| if (mCurrentTransform & NATIVE_WINDOW_TRANSFORM_FLIP_H) { |
| float result[16]; |
| mtxMul(result, xform, mtxFlipH); |
| for (int i = 0; i < 16; i++) { |
| xform[i] = result[i]; |
| } |
| } |
| if (mCurrentTransform & NATIVE_WINDOW_TRANSFORM_FLIP_V) { |
| float result[16]; |
| mtxMul(result, xform, mtxFlipV); |
| for (int i = 0; i < 16; i++) { |
| xform[i] = result[i]; |
| } |
| } |
| if (mCurrentTransform & NATIVE_WINDOW_TRANSFORM_ROT_90) { |
| float result[16]; |
| mtxMul(result, xform, mtxRot90); |
| for (int i = 0; i < 16; i++) { |
| xform[i] = result[i]; |
| } |
| } |
| |
| sp<GraphicBuffer> buf = (mCurrentTextureImage == NULL) ? |
| NULL : mCurrentTextureImage->graphicBuffer(); |
| |
| if (buf == NULL) { |
| GLC_LOGD("computeCurrentTransformMatrixLocked: mCurrentTextureImage is NULL"); |
| } |
| |
| float mtxBeforeFlipV[16]; |
| if (!isEglImageCroppable(mCurrentCrop)) { |
| Rect cropRect = mCurrentCrop; |
| float tx = 0.0f, ty = 0.0f, sx = 1.0f, sy = 1.0f; |
| float bufferWidth = buf->getWidth(); |
| float bufferHeight = buf->getHeight(); |
| if (!cropRect.isEmpty()) { |
| float shrinkAmount = 0.0f; |
| if (mFilteringEnabled) { |
| // In order to prevent bilinear sampling beyond the edge of the |
| // crop rectangle we may need to shrink it by 2 texels in each |
| // dimension. Normally this would just need to take 1/2 a texel |
| // off each end, but because the chroma channels of YUV420 images |
| // are subsampled we may need to shrink the crop region by a whole |
| // texel on each side. |
| switch (buf->getPixelFormat()) { |
| case PIXEL_FORMAT_RGBA_8888: |
| case PIXEL_FORMAT_RGBX_8888: |
| case PIXEL_FORMAT_RGB_888: |
| case PIXEL_FORMAT_RGB_565: |
| case PIXEL_FORMAT_BGRA_8888: |
| // We know there's no subsampling of any channels, so we |
| // only need to shrink by a half a pixel. |
| shrinkAmount = 0.5; |
| break; |
| |
| default: |
| // If we don't recognize the format, we must assume the |
| // worst case (that we care about), which is YUV420. |
| shrinkAmount = 1.0; |
| break; |
| } |
| } |
| |
| // Only shrink the dimensions that are not the size of the buffer. |
| if (cropRect.width() < bufferWidth) { |
| tx = (float(cropRect.left) + shrinkAmount) / bufferWidth; |
| sx = (float(cropRect.width()) - (2.0f * shrinkAmount)) / |
| bufferWidth; |
| } |
| if (cropRect.height() < bufferHeight) { |
| ty = (float(bufferHeight - cropRect.bottom) + shrinkAmount) / |
| bufferHeight; |
| sy = (float(cropRect.height()) - (2.0f * shrinkAmount)) / |
| bufferHeight; |
| } |
| } |
| float crop[16] = { |
| sx, 0, 0, 0, |
| 0, sy, 0, 0, |
| 0, 0, 1, 0, |
| tx, ty, 0, 1, |
| }; |
| |
| mtxMul(mtxBeforeFlipV, crop, xform); |
| } else { |
| for (int i = 0; i < 16; i++) { |
| mtxBeforeFlipV[i] = xform[i]; |
| } |
| } |
| |
| // SurfaceFlinger expects the top of its window textures to be at a Y |
| // coordinate of 0, so GLConsumer must behave the same way. We don't |
| // want to expose this to applications, however, so we must add an |
| // additional vertical flip to the transform after all the other transforms. |
| mtxMul(mCurrentTransformMatrix, mtxFlipV, mtxBeforeFlipV); |
| } |
| |
| nsecs_t GLConsumer::getTimestamp() { |
| GLC_LOGV("getTimestamp"); |
| Mutex::Autolock lock(mMutex); |
| return mCurrentTimestamp; |
| } |
| |
| uint64_t GLConsumer::getFrameNumber() { |
| GLC_LOGV("getFrameNumber"); |
| Mutex::Autolock lock(mMutex); |
| return mCurrentFrameNumber; |
| } |
| |
| sp<GraphicBuffer> GLConsumer::getCurrentBuffer() const { |
| Mutex::Autolock lock(mMutex); |
| return (mCurrentTextureImage == NULL) ? |
| NULL : mCurrentTextureImage->graphicBuffer(); |
| } |
| |
| Rect GLConsumer::getCurrentCrop() const { |
| Mutex::Autolock lock(mMutex); |
| |
| Rect outCrop = mCurrentCrop; |
| if (mCurrentScalingMode == NATIVE_WINDOW_SCALING_MODE_SCALE_CROP) { |
| uint32_t newWidth = static_cast<uint32_t>(mCurrentCrop.width()); |
| uint32_t newHeight = static_cast<uint32_t>(mCurrentCrop.height()); |
| |
| if (newWidth * mDefaultHeight > newHeight * mDefaultWidth) { |
| newWidth = newHeight * mDefaultWidth / mDefaultHeight; |
| GLC_LOGV("too wide: newWidth = %d", newWidth); |
| } else if (newWidth * mDefaultHeight < newHeight * mDefaultWidth) { |
| newHeight = newWidth * mDefaultHeight / mDefaultWidth; |
| GLC_LOGV("too tall: newHeight = %d", newHeight); |
| } |
| |
| uint32_t currentWidth = static_cast<uint32_t>(mCurrentCrop.width()); |
| uint32_t currentHeight = static_cast<uint32_t>(mCurrentCrop.height()); |
| |
| // The crop is too wide |
| if (newWidth < currentWidth) { |
| uint32_t dw = currentWidth - newWidth; |
| auto halfdw = dw / 2; |
| outCrop.left += halfdw; |
| // Not halfdw because it would subtract 1 too few when dw is odd |
| outCrop.right -= (dw - halfdw); |
| // The crop is too tall |
| } else if (newHeight < currentHeight) { |
| uint32_t dh = currentHeight - newHeight; |
| auto halfdh = dh / 2; |
| outCrop.top += halfdh; |
| // Not halfdh because it would subtract 1 too few when dh is odd |
| outCrop.bottom -= (dh - halfdh); |
| } |
| |
| GLC_LOGV("getCurrentCrop final crop [%d,%d,%d,%d]", |
| outCrop.left, outCrop.top, |
| outCrop.right,outCrop.bottom); |
| } |
| |
| return outCrop; |
| } |
| |
| uint32_t GLConsumer::getCurrentTransform() const { |
| Mutex::Autolock lock(mMutex); |
| return mCurrentTransform; |
| } |
| |
| uint32_t GLConsumer::getCurrentScalingMode() const { |
| Mutex::Autolock lock(mMutex); |
| return mCurrentScalingMode; |
| } |
| |
| sp<Fence> GLConsumer::getCurrentFence() const { |
| Mutex::Autolock lock(mMutex); |
| return mCurrentFence; |
| } |
| |
| status_t GLConsumer::doGLFenceWait() const { |
| Mutex::Autolock lock(mMutex); |
| return doGLFenceWaitLocked(); |
| } |
| |
| status_t GLConsumer::doGLFenceWaitLocked() const { |
| |
| EGLDisplay dpy = eglGetCurrentDisplay(); |
| EGLContext ctx = eglGetCurrentContext(); |
| |
| if (mEglDisplay != dpy || mEglDisplay == EGL_NO_DISPLAY) { |
| GLC_LOGE("doGLFenceWait: invalid current EGLDisplay"); |
| return INVALID_OPERATION; |
| } |
| |
| if (mEglContext != ctx || mEglContext == EGL_NO_CONTEXT) { |
| GLC_LOGE("doGLFenceWait: invalid current EGLContext"); |
| return INVALID_OPERATION; |
| } |
| |
| if (mCurrentFence->isValid()) { |
| if (SyncFeatures::getInstance().useWaitSync()) { |
| // Create an EGLSyncKHR from the current fence. |
| int fenceFd = mCurrentFence->dup(); |
| if (fenceFd == -1) { |
| GLC_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); |
| GLC_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. |
| eglWaitSyncKHR(dpy, sync, 0); |
| EGLint eglErr = eglGetError(); |
| eglDestroySyncKHR(dpy, sync); |
| if (eglErr != EGL_SUCCESS) { |
| GLC_LOGE("doGLFenceWait: error waiting for EGL fence: %#x", |
| eglErr); |
| return UNKNOWN_ERROR; |
| } |
| } else { |
| status_t err = mCurrentFence->waitForever( |
| "GLConsumer::doGLFenceWaitLocked"); |
| if (err != NO_ERROR) { |
| GLC_LOGE("doGLFenceWait: error waiting for fence: %d", err); |
| return err; |
| } |
| } |
| } |
| |
| return NO_ERROR; |
| } |
| |
| void GLConsumer::freeBufferLocked(int slotIndex) { |
| GLC_LOGV("freeBufferLocked: slotIndex=%d", slotIndex); |
| if (slotIndex == mCurrentTexture) { |
| mCurrentTexture = BufferQueue::INVALID_BUFFER_SLOT; |
| } |
| mEglSlots[slotIndex].mEglImage.clear(); |
| ConsumerBase::freeBufferLocked(slotIndex); |
| } |
| |
| void GLConsumer::abandonLocked() { |
| GLC_LOGV("abandonLocked"); |
| mCurrentTextureImage.clear(); |
| ConsumerBase::abandonLocked(); |
| } |
| |
| void GLConsumer::setName(const String8& name) { |
| Mutex::Autolock _l(mMutex); |
| mName = name; |
| mConsumer->setConsumerName(name); |
| } |
| |
| status_t GLConsumer::setDefaultBufferFormat(PixelFormat defaultFormat) { |
| Mutex::Autolock lock(mMutex); |
| return mConsumer->setDefaultBufferFormat(defaultFormat); |
| } |
| |
| status_t GLConsumer::setDefaultBufferDataSpace( |
| android_dataspace defaultDataSpace) { |
| Mutex::Autolock lock(mMutex); |
| return mConsumer->setDefaultBufferDataSpace(defaultDataSpace); |
| } |
| |
| status_t GLConsumer::setConsumerUsageBits(uint32_t usage) { |
| Mutex::Autolock lock(mMutex); |
| usage |= DEFAULT_USAGE_FLAGS; |
| return mConsumer->setConsumerUsageBits(usage); |
| } |
| |
| status_t GLConsumer::setTransformHint(uint32_t hint) { |
| Mutex::Autolock lock(mMutex); |
| return mConsumer->setTransformHint(hint); |
| } |
| |
| status_t GLConsumer::setMaxAcquiredBufferCount(int maxAcquiredBuffers) { |
| Mutex::Autolock lock(mMutex); |
| return mConsumer->setMaxAcquiredBufferCount(maxAcquiredBuffers); |
| } |
| |
| void GLConsumer::dumpLocked(String8& result, const char* prefix) const |
| { |
| result.appendFormat( |
| "%smTexName=%d mCurrentTexture=%d\n" |
| "%smCurrentCrop=[%d,%d,%d,%d] mCurrentTransform=%#x\n", |
| prefix, mTexName, mCurrentTexture, prefix, mCurrentCrop.left, |
| mCurrentCrop.top, mCurrentCrop.right, mCurrentCrop.bottom, |
| mCurrentTransform); |
| |
| ConsumerBase::dumpLocked(result, prefix); |
| } |
| |
| static void mtxMul(float out[16], const float a[16], const float b[16]) { |
| out[0] = a[0]*b[0] + a[4]*b[1] + a[8]*b[2] + a[12]*b[3]; |
| out[1] = a[1]*b[0] + a[5]*b[1] + a[9]*b[2] + a[13]*b[3]; |
| out[2] = a[2]*b[0] + a[6]*b[1] + a[10]*b[2] + a[14]*b[3]; |
| out[3] = a[3]*b[0] + a[7]*b[1] + a[11]*b[2] + a[15]*b[3]; |
| |
| out[4] = a[0]*b[4] + a[4]*b[5] + a[8]*b[6] + a[12]*b[7]; |
| out[5] = a[1]*b[4] + a[5]*b[5] + a[9]*b[6] + a[13]*b[7]; |
| out[6] = a[2]*b[4] + a[6]*b[5] + a[10]*b[6] + a[14]*b[7]; |
| out[7] = a[3]*b[4] + a[7]*b[5] + a[11]*b[6] + a[15]*b[7]; |
| |
| out[8] = a[0]*b[8] + a[4]*b[9] + a[8]*b[10] + a[12]*b[11]; |
| out[9] = a[1]*b[8] + a[5]*b[9] + a[9]*b[10] + a[13]*b[11]; |
| out[10] = a[2]*b[8] + a[6]*b[9] + a[10]*b[10] + a[14]*b[11]; |
| out[11] = a[3]*b[8] + a[7]*b[9] + a[11]*b[10] + a[15]*b[11]; |
| |
| out[12] = a[0]*b[12] + a[4]*b[13] + a[8]*b[14] + a[12]*b[15]; |
| out[13] = a[1]*b[12] + a[5]*b[13] + a[9]*b[14] + a[13]*b[15]; |
| out[14] = a[2]*b[12] + a[6]*b[13] + a[10]*b[14] + a[14]*b[15]; |
| out[15] = a[3]*b[12] + a[7]*b[13] + a[11]*b[14] + a[15]*b[15]; |
| } |
| |
| GLConsumer::EglImage::EglImage(sp<GraphicBuffer> graphicBuffer) : |
| mGraphicBuffer(graphicBuffer), |
| mEglImage(EGL_NO_IMAGE_KHR), |
| mEglDisplay(EGL_NO_DISPLAY), |
| mCropRect(Rect::EMPTY_RECT) { |
| } |
| |
| GLConsumer::EglImage::~EglImage() { |
| if (mEglImage != EGL_NO_IMAGE_KHR) { |
| if (!eglDestroyImageKHR(mEglDisplay, mEglImage)) { |
| ALOGE("~EglImage: eglDestroyImageKHR failed"); |
| } |
| eglTerminate(mEglDisplay); |
| } |
| } |
| |
| status_t GLConsumer::EglImage::createIfNeeded(EGLDisplay eglDisplay, |
| const Rect& cropRect, |
| bool forceCreation) { |
| // If there's an image and it's no longer valid, destroy it. |
| bool haveImage = mEglImage != EGL_NO_IMAGE_KHR; |
| bool displayInvalid = mEglDisplay != eglDisplay; |
| bool cropInvalid = hasEglAndroidImageCrop() && mCropRect != cropRect; |
| if (haveImage && (displayInvalid || cropInvalid || forceCreation)) { |
| if (!eglDestroyImageKHR(mEglDisplay, mEglImage)) { |
| ALOGE("createIfNeeded: eglDestroyImageKHR failed"); |
| } |
| eglTerminate(mEglDisplay); |
| mEglImage = EGL_NO_IMAGE_KHR; |
| mEglDisplay = EGL_NO_DISPLAY; |
| } |
| |
| // If there's no image, create one. |
| if (mEglImage == EGL_NO_IMAGE_KHR) { |
| mEglDisplay = eglDisplay; |
| mCropRect = cropRect; |
| mEglImage = createImage(mEglDisplay, mGraphicBuffer, mCropRect); |
| } |
| |
| // Fail if we can't create a valid image. |
| if (mEglImage == EGL_NO_IMAGE_KHR) { |
| mEglDisplay = EGL_NO_DISPLAY; |
| mCropRect.makeInvalid(); |
| const sp<GraphicBuffer>& buffer = mGraphicBuffer; |
| ALOGE("Failed to create image. size=%ux%u st=%u usage=0x%x fmt=%d", |
| buffer->getWidth(), buffer->getHeight(), buffer->getStride(), |
| buffer->getUsage(), buffer->getPixelFormat()); |
| return UNKNOWN_ERROR; |
| } |
| |
| return OK; |
| } |
| |
| void GLConsumer::EglImage::bindToTextureTarget(uint32_t texTarget) { |
| glEGLImageTargetTexture2DOES(texTarget, |
| static_cast<GLeglImageOES>(mEglImage)); |
| } |
| |
| EGLImageKHR GLConsumer::EglImage::createImage(EGLDisplay dpy, |
| const sp<GraphicBuffer>& graphicBuffer, const Rect& crop) { |
| EGLClientBuffer cbuf = |
| static_cast<EGLClientBuffer>(graphicBuffer->getNativeBuffer()); |
| EGLint attrs[] = { |
| EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, |
| EGL_IMAGE_CROP_LEFT_ANDROID, crop.left, |
| EGL_IMAGE_CROP_TOP_ANDROID, crop.top, |
| EGL_IMAGE_CROP_RIGHT_ANDROID, crop.right, |
| EGL_IMAGE_CROP_BOTTOM_ANDROID, crop.bottom, |
| EGL_NONE, |
| }; |
| if (!crop.isValid()) { |
| // No crop rect to set, so terminate the attrib array before the crop. |
| attrs[2] = EGL_NONE; |
| } else if (!isEglImageCroppable(crop)) { |
| // The crop rect is not at the origin, so we can't set the crop on the |
| // EGLImage because that's not allowed by the EGL_ANDROID_image_crop |
| // extension. In the future we can add a layered extension that |
| // removes this restriction if there is hardware that can support it. |
| attrs[2] = EGL_NONE; |
| } |
| eglInitialize(dpy, 0, 0); |
| EGLImageKHR image = eglCreateImageKHR(dpy, EGL_NO_CONTEXT, |
| EGL_NATIVE_BUFFER_ANDROID, cbuf, attrs); |
| if (image == EGL_NO_IMAGE_KHR) { |
| EGLint error = eglGetError(); |
| ALOGE("error creating EGLImage: %#x", error); |
| eglTerminate(dpy); |
| } |
| return image; |
| } |
| |
| }; // namespace android |