diff options
Diffstat (limited to 'indra/llimage/llimageworker.cpp')
| -rw-r--r-- | indra/llimage/llimageworker.cpp | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/indra/llimage/llimageworker.cpp b/indra/llimage/llimageworker.cpp new file mode 100644 index 0000000000..b44bf19227 --- /dev/null +++ b/indra/llimage/llimageworker.cpp @@ -0,0 +1,165 @@ +/**
+ * @file llimage.cpp
+ * @brief Base class for images.
+ *
+ * Copyright (c) 2001-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#include "linden_common.h"
+
+#include "llimageworker.h"
+#include "llimagedxt.h"
+
+//----------------------------------------------------------------------------
+
+//static
+LLWorkerThread* LLImageWorker::sWorkerThread = NULL;
+S32 LLImageWorker::sCount = 0;
+
+//static
+void LLImageWorker::initClass(LLWorkerThread* workerthread)
+{
+ sWorkerThread = workerthread;
+}
+
+//static
+void LLImageWorker::cleanupClass()
+{
+}
+
+//----------------------------------------------------------------------------
+
+LLImageWorker::LLImageWorker(LLImageFormatted* image, U32 priority, S32 discard, LLResponder* responder)
+ : LLWorkerClass(sWorkerThread, "Image"),
+ mFormattedImage(image),
+ mDecodedType(-1),
+ mDiscardLevel(discard),
+ mPriority(priority),
+ mResponder(responder)
+{
+ ++sCount;
+}
+
+LLImageWorker::~LLImageWorker()
+{
+ mDecodedImage = NULL;
+ mFormattedImage = NULL;
+ --sCount;
+}
+
+//----------------------------------------------------------------------------
+
+//virtual, main thread
+void LLImageWorker::startWork(S32 param)
+{
+ llassert_always(mDecodedImage.isNull());
+ mDecodedType = -1;
+}
+
+bool LLImageWorker::doWork(S32 param)
+{
+ bool decoded = false;
+ if(mDecodedImage.isNull())
+ {
+ if (!mFormattedImage->updateData())
+ {
+ mDecodedType = -2; // failed
+ return true;
+ }
+ if (mDiscardLevel >= 0)
+ {
+ mFormattedImage->setDiscardLevel(mDiscardLevel);
+ }
+ if (!(mFormattedImage->getWidth() * mFormattedImage->getHeight() * mFormattedImage->getComponents()))
+ {
+ decoded = true; // failed
+ }
+ else
+ {
+ S32 nc = param ? 1 : mFormattedImage->getComponents();
+ mDecodedImage = new LLImageRaw(mFormattedImage->getWidth(),
+ mFormattedImage->getHeight(),
+ nc);
+ }
+ }
+ if (!decoded)
+ {
+ if (param == 0)
+ {
+ // Decode primary channels
+ decoded = mFormattedImage->decode(mDecodedImage, .1f); // 1ms
+ }
+ else
+ {
+ // Decode aux channel
+ decoded = mFormattedImage->decode(mDecodedImage, .1f, param, param); // 1ms
+ }
+ }
+ if (decoded)
+ {
+ // Call the callback immediately; endWork doesn't get called until ckeckWork
+ if (mResponder.notNull())
+ {
+ bool success = (!wasAborted() && mDecodedImage.notNull() && mDecodedImage->getDataSize() != 0);
+ mResponder->completed(success);
+ }
+ }
+ return decoded;
+}
+
+void LLImageWorker::endWork(S32 param, bool aborted)
+{
+ if (mDecodedType != -2)
+ {
+ mDecodedType = aborted ? -2 : param;
+ }
+}
+
+//----------------------------------------------------------------------------
+
+
+BOOL LLImageWorker::requestDecodedAuxData(LLPointer<LLImageRaw>& raw, S32 channel, S32 discard)
+{
+ // For most codecs, only mDiscardLevel data is available.
+ // (see LLImageDXT for exception)
+ if (discard >= 0 && discard != mFormattedImage->getDiscardLevel())
+ {
+ llerrs << "Request for invalid discard level" << llendl;
+ }
+ checkWork();
+ if (mDecodedType == -2)
+ {
+ return TRUE; // aborted, done
+ }
+ if (mDecodedType != channel)
+ {
+ if (!haveWork())
+ {
+ addWork(channel, mPriority);
+ }
+ return FALSE;
+ }
+ else
+ {
+ llassert_always(!haveWork());
+ llassert_always(mDecodedType == channel);
+ raw = mDecodedImage; // smart pointer acquires ownership of data
+ mDecodedImage = NULL;
+ return TRUE;
+ }
+}
+
+BOOL LLImageWorker::requestDecodedData(LLPointer<LLImageRaw>& raw, S32 discard)
+{
+ if (mFormattedImage->getCodec() == IMG_CODEC_DXT)
+ {
+ // special case
+ LLImageDXT* imagedxt = (LLImageDXT*)((LLImageFormatted*)mFormattedImage);
+ return imagedxt->getMipData(raw, discard);
+ }
+ else
+ {
+ return requestDecodedAuxData(raw, 0, discard);
+ }
+}
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