1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/image/src/Image.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,143 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "nsMimeTypes.h"
1.10 +
1.11 +#include "Image.h"
1.12 +
1.13 +namespace mozilla {
1.14 +namespace image {
1.15 +
1.16 +// Constructor
1.17 +ImageResource::ImageResource(ImageURL* aURI) :
1.18 + mURI(aURI),
1.19 + mInnerWindowId(0),
1.20 + mAnimationConsumers(0),
1.21 + mAnimationMode(kNormalAnimMode),
1.22 + mInitialized(false),
1.23 + mAnimating(false),
1.24 + mError(false)
1.25 +{
1.26 +}
1.27 +
1.28 +uint32_t
1.29 +ImageResource::SizeOfData()
1.30 +{
1.31 + if (mError)
1.32 + return 0;
1.33 +
1.34 + // This is not used by memory reporters, but for sizing the cache, which is
1.35 + // why it uses |moz_malloc_size_of| rather than a
1.36 + // |MOZ_DEFINE_MALLOC_SIZE_OF|.
1.37 + return uint32_t(HeapSizeOfSourceWithComputedFallback(moz_malloc_size_of) +
1.38 + HeapSizeOfDecodedWithComputedFallback(moz_malloc_size_of) +
1.39 + NonHeapSizeOfDecoded() +
1.40 + OutOfProcessSizeOfDecoded());
1.41 +}
1.42 +
1.43 +// Translates a mimetype into a concrete decoder
1.44 +Image::eDecoderType
1.45 +Image::GetDecoderType(const char *aMimeType)
1.46 +{
1.47 + // By default we don't know
1.48 + eDecoderType rv = eDecoderType_unknown;
1.49 +
1.50 + // PNG
1.51 + if (!strcmp(aMimeType, IMAGE_PNG))
1.52 + rv = eDecoderType_png;
1.53 + else if (!strcmp(aMimeType, IMAGE_X_PNG))
1.54 + rv = eDecoderType_png;
1.55 +
1.56 + // GIF
1.57 + else if (!strcmp(aMimeType, IMAGE_GIF))
1.58 + rv = eDecoderType_gif;
1.59 +
1.60 +
1.61 + // JPEG
1.62 + else if (!strcmp(aMimeType, IMAGE_JPEG))
1.63 + rv = eDecoderType_jpeg;
1.64 + else if (!strcmp(aMimeType, IMAGE_PJPEG))
1.65 + rv = eDecoderType_jpeg;
1.66 + else if (!strcmp(aMimeType, IMAGE_JPG))
1.67 + rv = eDecoderType_jpeg;
1.68 +
1.69 + // BMP
1.70 + else if (!strcmp(aMimeType, IMAGE_BMP))
1.71 + rv = eDecoderType_bmp;
1.72 + else if (!strcmp(aMimeType, IMAGE_BMP_MS))
1.73 + rv = eDecoderType_bmp;
1.74 +
1.75 +
1.76 + // ICO
1.77 + else if (!strcmp(aMimeType, IMAGE_ICO))
1.78 + rv = eDecoderType_ico;
1.79 + else if (!strcmp(aMimeType, IMAGE_ICO_MS))
1.80 + rv = eDecoderType_ico;
1.81 +
1.82 + // Icon
1.83 + else if (!strcmp(aMimeType, IMAGE_ICON_MS))
1.84 + rv = eDecoderType_icon;
1.85 +
1.86 + return rv;
1.87 +}
1.88 +
1.89 +void
1.90 +ImageResource::IncrementAnimationConsumers()
1.91 +{
1.92 + MOZ_ASSERT(NS_IsMainThread(), "Main thread only to encourage serialization "
1.93 + "with DecrementAnimationConsumers");
1.94 + mAnimationConsumers++;
1.95 +}
1.96 +
1.97 +void
1.98 +ImageResource::DecrementAnimationConsumers()
1.99 +{
1.100 + MOZ_ASSERT(NS_IsMainThread(), "Main thread only to encourage serialization "
1.101 + "with IncrementAnimationConsumers");
1.102 + NS_ABORT_IF_FALSE(mAnimationConsumers >= 1, "Invalid no. of animation consumers!");
1.103 + mAnimationConsumers--;
1.104 +}
1.105 +
1.106 +nsresult
1.107 +ImageResource::GetAnimationModeInternal(uint16_t* aAnimationMode)
1.108 +{
1.109 + if (mError)
1.110 + return NS_ERROR_FAILURE;
1.111 +
1.112 + NS_ENSURE_ARG_POINTER(aAnimationMode);
1.113 +
1.114 + *aAnimationMode = mAnimationMode;
1.115 + return NS_OK;
1.116 +}
1.117 +
1.118 +nsresult
1.119 +ImageResource::SetAnimationModeInternal(uint16_t aAnimationMode)
1.120 +{
1.121 + if (mError)
1.122 + return NS_ERROR_FAILURE;
1.123 +
1.124 + NS_ASSERTION(aAnimationMode == kNormalAnimMode ||
1.125 + aAnimationMode == kDontAnimMode ||
1.126 + aAnimationMode == kLoopOnceAnimMode,
1.127 + "Wrong Animation Mode is being set!");
1.128 +
1.129 + mAnimationMode = aAnimationMode;
1.130 +
1.131 + return NS_OK;
1.132 +}
1.133 +
1.134 +void
1.135 +ImageResource::EvaluateAnimation()
1.136 +{
1.137 + if (!mAnimating && ShouldAnimate()) {
1.138 + nsresult rv = StartAnimation();
1.139 + mAnimating = NS_SUCCEEDED(rv);
1.140 + } else if (mAnimating && !ShouldAnimate()) {
1.141 + StopAnimation();
1.142 + }
1.143 +}
1.144 +
1.145 +} // namespace image
1.146 +} // namespace mozilla
