michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsMimeTypes.h"
michael@0: 
michael@0: #include "Image.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace image {
michael@0: 
michael@0: // Constructor
michael@0: ImageResource::ImageResource(ImageURL* aURI) :
michael@0:   mURI(aURI),
michael@0:   mInnerWindowId(0),
michael@0:   mAnimationConsumers(0),
michael@0:   mAnimationMode(kNormalAnimMode),
michael@0:   mInitialized(false),
michael@0:   mAnimating(false),
michael@0:   mError(false)
michael@0: {
michael@0: }
michael@0: 
michael@0: uint32_t
michael@0: ImageResource::SizeOfData()
michael@0: {
michael@0:   if (mError)
michael@0:     return 0;
michael@0: 
michael@0:   // This is not used by memory reporters, but for sizing the cache, which is
michael@0:   // why it uses |moz_malloc_size_of| rather than a
michael@0:   // |MOZ_DEFINE_MALLOC_SIZE_OF|.
michael@0:   return uint32_t(HeapSizeOfSourceWithComputedFallback(moz_malloc_size_of) +
michael@0:                   HeapSizeOfDecodedWithComputedFallback(moz_malloc_size_of) +
michael@0:                   NonHeapSizeOfDecoded() +
michael@0:                   OutOfProcessSizeOfDecoded());
michael@0: }
michael@0: 
michael@0: // Translates a mimetype into a concrete decoder
michael@0: Image::eDecoderType
michael@0: Image::GetDecoderType(const char *aMimeType)
michael@0: {
michael@0:   // By default we don't know
michael@0:   eDecoderType rv = eDecoderType_unknown;
michael@0: 
michael@0:   // PNG
michael@0:   if (!strcmp(aMimeType, IMAGE_PNG))
michael@0:     rv = eDecoderType_png;
michael@0:   else if (!strcmp(aMimeType, IMAGE_X_PNG))
michael@0:     rv = eDecoderType_png;
michael@0: 
michael@0:   // GIF
michael@0:   else if (!strcmp(aMimeType, IMAGE_GIF))
michael@0:     rv = eDecoderType_gif;
michael@0: 
michael@0: 
michael@0:   // JPEG
michael@0:   else if (!strcmp(aMimeType, IMAGE_JPEG))
michael@0:     rv = eDecoderType_jpeg;
michael@0:   else if (!strcmp(aMimeType, IMAGE_PJPEG))
michael@0:     rv = eDecoderType_jpeg;
michael@0:   else if (!strcmp(aMimeType, IMAGE_JPG))
michael@0:     rv = eDecoderType_jpeg;
michael@0: 
michael@0:   // BMP
michael@0:   else if (!strcmp(aMimeType, IMAGE_BMP))
michael@0:     rv = eDecoderType_bmp;
michael@0:   else if (!strcmp(aMimeType, IMAGE_BMP_MS))
michael@0:     rv = eDecoderType_bmp;
michael@0: 
michael@0: 
michael@0:   // ICO
michael@0:   else if (!strcmp(aMimeType, IMAGE_ICO))
michael@0:     rv = eDecoderType_ico;
michael@0:   else if (!strcmp(aMimeType, IMAGE_ICO_MS))
michael@0:     rv = eDecoderType_ico;
michael@0: 
michael@0:   // Icon
michael@0:   else if (!strcmp(aMimeType, IMAGE_ICON_MS))
michael@0:     rv = eDecoderType_icon;
michael@0: 
michael@0:   return rv;
michael@0: }
michael@0: 
michael@0: void
michael@0: ImageResource::IncrementAnimationConsumers()
michael@0: {
michael@0:   MOZ_ASSERT(NS_IsMainThread(), "Main thread only to encourage serialization "
michael@0:                                 "with DecrementAnimationConsumers");
michael@0:   mAnimationConsumers++;
michael@0: }
michael@0: 
michael@0: void
michael@0: ImageResource::DecrementAnimationConsumers()
michael@0: {
michael@0:   MOZ_ASSERT(NS_IsMainThread(), "Main thread only to encourage serialization "
michael@0:                                 "with IncrementAnimationConsumers");
michael@0:   NS_ABORT_IF_FALSE(mAnimationConsumers >= 1, "Invalid no. of animation consumers!");
michael@0:   mAnimationConsumers--;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: ImageResource::GetAnimationModeInternal(uint16_t* aAnimationMode)
michael@0: {
michael@0:   if (mError)
michael@0:     return NS_ERROR_FAILURE;
michael@0: 
michael@0:   NS_ENSURE_ARG_POINTER(aAnimationMode);
michael@0: 
michael@0:   *aAnimationMode = mAnimationMode;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: ImageResource::SetAnimationModeInternal(uint16_t aAnimationMode)
michael@0: {
michael@0:   if (mError)
michael@0:     return NS_ERROR_FAILURE;
michael@0: 
michael@0:   NS_ASSERTION(aAnimationMode == kNormalAnimMode ||
michael@0:                aAnimationMode == kDontAnimMode ||
michael@0:                aAnimationMode == kLoopOnceAnimMode,
michael@0:                "Wrong Animation Mode is being set!");
michael@0: 
michael@0:   mAnimationMode = aAnimationMode;
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: void
michael@0: ImageResource::EvaluateAnimation()
michael@0: {
michael@0:   if (!mAnimating && ShouldAnimate()) {
michael@0:     nsresult rv = StartAnimation();
michael@0:     mAnimating = NS_SUCCEEDED(rv);
michael@0:   } else if (mAnimating && !ShouldAnimate()) {
michael@0:     StopAnimation();
michael@0:   }
michael@0: }
michael@0: 
michael@0: } // namespace image
michael@0: } // namespace mozilla