status_t GLConsumer::acquireBufferLocked(BufferQueue::BufferItem *item,
nsecs_t presentWhen) {
status_t err = ConsumerBase::acquireBufferLocked(item, presentWhen);
if (err != NO_ERROR) {
return err;
}
int slot = item->mBuf;
bool destroyEglImage = false;
if (mEglSlots[slot].mEglImage != EGL_NO_IMAGE_KHR) {
if (item->mGraphicBuffer != NULL) {
// This buffer has not been acquired before, so we must assume
// that any EGLImage in mEglSlots is stale.
destroyEglImage = true;
} else if (mEglSlots[slot].mCropRect != item->mCrop) {
// We've already seen this buffer before, but it now has a
// different crop rect, so we'll need to recreate the EGLImage if
// we're using the EGL_ANDROID_image_crop extension.
destroyEglImage = hasEglAndroidImageCrop();
}
}
if (destroyEglImage) {
if (!eglDestroyImageKHR(mEglDisplay, mEglSlots[slot].mEglImage)) {
ST_LOGW("acquireBufferLocked: eglDestroyImageKHR failed for slot=%d",
slot);
// keep going
}
mEglSlots[slot].mEglImage = EGL_NO_IMAGE_KHR;
}
return NO_ERROR;
}
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// If there's an image and it's no longer valid, destroy it.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;
}
static bool isEglImageCroppable(const Rect& crop) {
return hasEglAndroidImageCrop() && (crop.left == 0 && crop.top == 0);
}
