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Implement WebP image decoder.

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This commit is contained in:
wolfbeast 2017-07-24 13:29:29 +02:00 • committed by Roy Tam
commit 9121db73a2
10 changed files with 579 additions and 2 deletions
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14
image/DecoderFactory.cpp
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@ -5,6 +5,7 @@
#include "DecoderFactory.h"
#include "gfxPrefs.h"
#include "nsMimeTypes.h"
#include "mozilla/RefPtr.h"
@ -17,6 +18,7 @@
#include "nsBMPDecoder.h"
#include "nsICODecoder.h"
#include "nsIconDecoder.h"
#include "nsWebPDecoder.h"
namespace mozilla {
@ -65,8 +67,12 @@ DecoderFactory::GetDecoderType(const char* aMimeType)
// Icon
} else if (!strcmp(aMimeType, IMAGE_ICON_MS)) {
type = DecoderType::ICON;
}
// WebP
} else if (!strcmp(aMimeType, IMAGE_WEBP) &&
gfxPrefs::ImageWebPEnabled()) {
type = DecoderType::WEBP;
}
return type;
}
@ -100,6 +106,9 @@ DecoderFactory::GetDecoder(DecoderType aType,
case DecoderType::ICON:
decoder = new nsIconDecoder(aImage);
break;
case DecoderType::WEBP:
decoder = new nsWebPDecoder(aImage);
break;
default:
MOZ_ASSERT_UNREACHABLE("Unknown decoder type");
}
@ -171,7 +180,8 @@ DecoderFactory::CreateAnimationDecoder(DecoderType aType,
return nullptr;
}
MOZ_ASSERT(aType == DecoderType::GIF || aType == DecoderType::PNG,
MOZ_ASSERT(aType == DecoderType::GIF || aType == DecoderType::PNG ||
aType == DecoderType::WEBP,
"Calling CreateAnimationDecoder for non-animating DecoderType");
// Create an anonymous decoder. Interaction with the SurfaceCache and the