void
Decoder::Write(const char* aBuffer, PRUint32 aCount)
{
// We're strict about decoder errors
NS_ABORT_IF_FALSE(!HasDecoderError(),
"Not allowed to make more decoder calls after error!");
// If a data error occured, just ignore future data
if (HasDataError())
return;
// Pass the data along to the implementation
WriteInternal(aBuffer, aCount);
}
void
Decoder::FlushInvalidations()
{
NS_ABORT_IF_FALSE(!HasDecoderError(),
"Not allowed to make more decoder calls after error!");
// If we've got an empty invalidation rect, we have nothing to do
if (mInvalidRect.IsEmpty())
return;
// Tell the image that it's been updated
mImage->FrameUpdated(mFrameCount - 1, mInvalidRect);
// Fire OnDataAvailable
if (mObserver) {
PRBool isCurrentFrame = mImage->GetCurrentFrameIndex() == (mFrameCount - 1);
mObserver->OnDataAvailable(nsnull, isCurrentFrame, &mInvalidRect);
}
// Clear the invalidation rectangle
mInvalidRect.SetEmpty();
}
void
Decoder::FlushInvalidations()
{
NS_ABORT_IF_FALSE(!HasDecoderError(),
"Not allowed to make more decoder calls after error!");
// If we've got an empty invalidation rect, we have nothing to do
if (mInvalidRect.IsEmpty())
return;
// Tell the image that it's been updated
mImage.FrameUpdated(mFrameCount - 1, mInvalidRect);
// Fire OnDataAvailable
if (mObserver) {
#ifdef XP_MACOSX
// Bug 703231
// Because of high quality down sampling on mac we show scan lines while decoding.
// Bypass this problem by redrawing the border.
PRInt32 width;
PRInt32 height;
mImage.GetWidth(&width);
mImage.GetHeight(&height);
nsIntRect mImageBound(0, 0, width, height);
mInvalidRect.Inflate(1);
mInvalidRect = mInvalidRect.Intersect(mImageBound);
#endif
bool isCurrentFrame = mImage.GetCurrentFrameIndex() == (mFrameCount - 1);
mObserver->OnDataAvailable(nsnull, isCurrentFrame, &mInvalidRect);
}
// Clear the invalidation rectangle
mInvalidRect.SetEmpty();
}
void
Decoder::Write(const char* aBuffer, uint32_t aCount)
{
PROFILER_LABEL("ImageDecoder", "Write",
js::ProfileEntry::Category::GRAPHICS);
MOZ_ASSERT(aBuffer);
MOZ_ASSERT(aCount > 0);
// We're strict about decoder errors
MOZ_ASSERT(!HasDecoderError(),
"Not allowed to make more decoder calls after error!");
// Begin recording telemetry data.
TimeStamp start = TimeStamp::Now();
mChunkCount++;
// Keep track of the total number of bytes written.
mBytesDecoded += aCount;
// If a data error occured, just ignore future data.
if (HasDataError()) {
return;
}
if (IsMetadataDecode() && HasSize()) {
// More data came in since we found the size. We have nothing to do here.
return;
}
// Pass the data along to the implementation.
WriteInternal(aBuffer, aCount);
// Finish telemetry.
mDecodeTime += (TimeStamp::Now() - start);
}
void
Decoder::Finish(RasterImage::eShutdownIntent aShutdownIntent)
{
// Implementation-specific finalization
if (!HasError())
FinishInternal();
// If the implementation left us mid-frame, finish that up.
if (mInFrame && !HasError())
PostFrameStop();
// If PostDecodeDone() has not been called, we need to sent teardown
// notifications.
if (!IsSizeDecode() && !mDecodeDone) {
// Log data errors to the error console
nsCOMPtr<nsIConsoleService> consoleService =
do_GetService(NS_CONSOLESERVICE_CONTRACTID);
nsCOMPtr<nsIScriptError> errorObject =
do_CreateInstance(NS_SCRIPTERROR_CONTRACTID);
if (consoleService && errorObject && !HasDecoderError()) {
nsAutoString msg(NS_LITERAL_STRING("Image corrupt or truncated: ") +
NS_ConvertUTF8toUTF16(mImage.GetURIString()));
if (NS_SUCCEEDED(errorObject->InitWithWindowID(
msg,
NS_ConvertUTF8toUTF16(mImage.GetURIString()),
EmptyString(), 0, 0, nsIScriptError::errorFlag,
"Image", mImage.InnerWindowID()
))) {
consoleService->LogMessage(errorObject);
}
}
bool usable = true;
if (aShutdownIntent != RasterImage::eShutdownIntent_NotNeeded && !HasDecoderError()) {
// If we only have a data error, we're usable if we have at least one complete frame.
if (GetCompleteFrameCount() == 0) {
usable = false;
}
}
// If we're usable, do exactly what we should have when the decoder
// completed.
if (usable) {
if (mInFrame) {
PostFrameStop();
}
PostDecodeDone();
} else {
if (mObserver) {
mObserver->OnStopDecode(NS_ERROR_FAILURE);
}
}
}
// Set image metadata before calling DecodingComplete, because DecodingComplete calls Optimize().
mImageMetadata.SetOnImage(&mImage);
if (mDecodeDone) {
mImage.DecodingComplete();
}
}
void
Decoder::Finish(ShutdownReason aReason)
{
MOZ_ASSERT(NS_IsMainThread());
// Implementation-specific finalization
if (!HasError())
FinishInternal();
// If the implementation left us mid-frame, finish that up.
if (mInFrame && !HasError())
PostFrameStop();
// If PostDecodeDone() has not been called, we need to sent teardown
// notifications.
if (!IsSizeDecode() && !mDecodeDone) {
// Log data errors to the error console
nsCOMPtr<nsIConsoleService> consoleService =
do_GetService(NS_CONSOLESERVICE_CONTRACTID);
nsCOMPtr<nsIScriptError> errorObject =
do_CreateInstance(NS_SCRIPTERROR_CONTRACTID);
if (consoleService && errorObject && !HasDecoderError()) {
nsAutoString msg(NS_LITERAL_STRING("Image corrupt or truncated: ") +
NS_ConvertUTF8toUTF16(mImage.GetURIString()));
if (NS_SUCCEEDED(errorObject->InitWithWindowID(
msg,
NS_ConvertUTF8toUTF16(mImage.GetURIString()),
EmptyString(), 0, 0, nsIScriptError::errorFlag,
"Image", mImage.InnerWindowID()
))) {
consoleService->LogMessage(errorObject);
}
}
bool usable = !HasDecoderError();
if (aReason != ShutdownReason::NOT_NEEDED && !HasDecoderError()) {
// If we only have a data error, we're usable if we have at least one complete frame.
if (GetCompleteFrameCount() == 0) {
usable = false;
}
}
// If we're usable, do exactly what we should have when the decoder
// completed.
if (usable) {
if (mInFrame) {
PostFrameStop();
}
PostDecodeDone();
} else {
if (!IsSizeDecode()) {
mProgress |= FLAG_DECODE_COMPLETE | FLAG_ONLOAD_UNBLOCKED;
}
mProgress |= FLAG_HAS_ERROR;
}
}
// Set image metadata before calling DecodingComplete, because
// DecodingComplete calls Optimize().
mImageMetadata.SetOnImage(&mImage);
if (mDecodeDone) {
MOZ_ASSERT(HasError() || mCurrentFrame, "Should have an error or a frame");
mImage.DecodingComplete(mCurrentFrame.get());
}
}
