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image/src/Image.cpp@6474c204b198 (annotated)

image/src/Image.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	#include "nsMimeTypes.h"
michael@0	7
michael@0	8	#include "Image.h"
michael@0	9
michael@0	10	namespace mozilla {
michael@0	11	namespace image {
michael@0	12
michael@0	13	// Constructor
michael@0	14	ImageResource::ImageResource(ImageURL* aURI) :
michael@0	15	mURI(aURI),
michael@0	16	mInnerWindowId(0),
michael@0	17	mAnimationConsumers(0),
michael@0	18	mAnimationMode(kNormalAnimMode),
michael@0	19	mInitialized(false),
michael@0	20	mAnimating(false),
michael@0	21	mError(false)
michael@0	22	{
michael@0	23	}
michael@0	24
michael@0	25	uint32_t
michael@0	26	ImageResource::SizeOfData()
michael@0	27	{
michael@0	28	if (mError)
michael@0	29	return 0;
michael@0	30
michael@0	31	// This is not used by memory reporters, but for sizing the cache, which is
michael@0	32	// why it uses |moz_malloc_size_of| rather than a
michael@0	33	// |MOZ_DEFINE_MALLOC_SIZE_OF|.
michael@0	34	return uint32_t(HeapSizeOfSourceWithComputedFallback(moz_malloc_size_of) +
michael@0	35	HeapSizeOfDecodedWithComputedFallback(moz_malloc_size_of) +
michael@0	36	NonHeapSizeOfDecoded() +
michael@0	37	OutOfProcessSizeOfDecoded());
michael@0	38	}
michael@0	39
michael@0	40	// Translates a mimetype into a concrete decoder
michael@0	41	Image::eDecoderType
michael@0	42	Image::GetDecoderType(const char *aMimeType)
michael@0	43	{
michael@0	44	// By default we don't know
michael@0	45	eDecoderType rv = eDecoderType_unknown;
michael@0	46
michael@0	47	// PNG
michael@0	48	if (!strcmp(aMimeType, IMAGE_PNG))
michael@0	49	rv = eDecoderType_png;
michael@0	50	else if (!strcmp(aMimeType, IMAGE_X_PNG))
michael@0	51	rv = eDecoderType_png;
michael@0	52
michael@0	53	// GIF
michael@0	54	else if (!strcmp(aMimeType, IMAGE_GIF))
michael@0	55	rv = eDecoderType_gif;
michael@0	56
michael@0	57
michael@0	58	// JPEG
michael@0	59	else if (!strcmp(aMimeType, IMAGE_JPEG))
michael@0	60	rv = eDecoderType_jpeg;
michael@0	61	else if (!strcmp(aMimeType, IMAGE_PJPEG))
michael@0	62	rv = eDecoderType_jpeg;
michael@0	63	else if (!strcmp(aMimeType, IMAGE_JPG))
michael@0	64	rv = eDecoderType_jpeg;
michael@0	65
michael@0	66	// BMP
michael@0	67	else if (!strcmp(aMimeType, IMAGE_BMP))
michael@0	68	rv = eDecoderType_bmp;
michael@0	69	else if (!strcmp(aMimeType, IMAGE_BMP_MS))
michael@0	70	rv = eDecoderType_bmp;
michael@0	71
michael@0	72
michael@0	73	// ICO
michael@0	74	else if (!strcmp(aMimeType, IMAGE_ICO))
michael@0	75	rv = eDecoderType_ico;
michael@0	76	else if (!strcmp(aMimeType, IMAGE_ICO_MS))
michael@0	77	rv = eDecoderType_ico;
michael@0	78
michael@0	79	// Icon
michael@0	80	else if (!strcmp(aMimeType, IMAGE_ICON_MS))
michael@0	81	rv = eDecoderType_icon;
michael@0	82
michael@0	83	return rv;
michael@0	84	}
michael@0	85
michael@0	86	void
michael@0	87	ImageResource::IncrementAnimationConsumers()
michael@0	88	{
michael@0	89	MOZ_ASSERT(NS_IsMainThread(), "Main thread only to encourage serialization "
michael@0	90	"with DecrementAnimationConsumers");
michael@0	91	mAnimationConsumers++;
michael@0	92	}
michael@0	93
michael@0	94	void
michael@0	95	ImageResource::DecrementAnimationConsumers()
michael@0	96	{
michael@0	97	MOZ_ASSERT(NS_IsMainThread(), "Main thread only to encourage serialization "
michael@0	98	"with IncrementAnimationConsumers");
michael@0	99	NS_ABORT_IF_FALSE(mAnimationConsumers >= 1, "Invalid no. of animation consumers!");
michael@0	100	mAnimationConsumers--;
michael@0	101	}
michael@0	102
michael@0	103	nsresult
michael@0	104	ImageResource::GetAnimationModeInternal(uint16_t* aAnimationMode)
michael@0	105	{
michael@0	106	if (mError)
michael@0	107	return NS_ERROR_FAILURE;
michael@0	108
michael@0	109	NS_ENSURE_ARG_POINTER(aAnimationMode);
michael@0	110
michael@0	111	*aAnimationMode = mAnimationMode;
michael@0	112	return NS_OK;
michael@0	113	}
michael@0	114
michael@0	115	nsresult
michael@0	116	ImageResource::SetAnimationModeInternal(uint16_t aAnimationMode)
michael@0	117	{
michael@0	118	if (mError)
michael@0	119	return NS_ERROR_FAILURE;
michael@0	120
michael@0	121	NS_ASSERTION(aAnimationMode == kNormalAnimMode ||
michael@0	122	aAnimationMode == kDontAnimMode ||
michael@0	123	aAnimationMode == kLoopOnceAnimMode,
michael@0	124	"Wrong Animation Mode is being set!");
michael@0	125
michael@0	126	mAnimationMode = aAnimationMode;
michael@0	127
michael@0	128	return NS_OK;
michael@0	129	}
michael@0	130
michael@0	131	void
michael@0	132	ImageResource::EvaluateAnimation()
michael@0	133	{
michael@0	134	if (!mAnimating && ShouldAnimate()) {
michael@0	135	nsresult rv = StartAnimation();
michael@0	136	mAnimating = NS_SUCCEEDED(rv);
michael@0	137	} else if (mAnimating && !ShouldAnimate()) {
michael@0	138	StopAnimation();
michael@0	139	}
michael@0	140	}
michael@0	141
michael@0	142	} // namespace image
michael@0	143	} // namespace mozilla