CN106445833A - Reader-based picture display method and apparatus - Google Patents
Reader-based picture display method and apparatus Download PDFInfo
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- CN106445833A CN106445833A CN201610903255.8A CN201610903255A CN106445833A CN 106445833 A CN106445833 A CN 106445833A CN 201610903255 A CN201610903255 A CN 201610903255A CN 106445833 A CN106445833 A CN 106445833A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/023—Free address space management
- G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
- G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/20—Employing a main memory using a specific memory technology
- G06F2212/206—Memory mapped I/O
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/72—Details relating to flash memory management
- G06F2212/7201—Logical to physical mapping or translation of blocks or pages
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/72—Details relating to flash memory management
- G06F2212/7205—Cleaning, compaction, garbage collection, erase control
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Abstract
The embodiment of invention discloses a reader-based picture display method and an apparatus. After receiving a picture display request, a picture cluster can be obtained from a picture file according to the request, and the picture cluster is decoded; the decoded picture cluster is mapped in a memory, so that a picture in the decoded picture cluster can be obtained directly from the memory for a later operation and displayed in a reader. The program can speed up the file loading speed, and greatly improve the processing efficiency; moreover, when the decoded image is loaded, such a problem that a user process takes up too much memory caused by the fact that a image file is too large is avoided, and the probability of process stuck or crash can be greatly reduced.
Description
Technical field
The present invention relates to communication technical field is and in particular to a kind of image display method based on reader and device.
Background technology
Nowadays, increasing people carrys out read books using terminals such as mobile phone, panel computer or electronic book equipments, and schemes
Book reader (abbreviation reader) exactly a confession user carry out reading and include the terminal applies of books.
In the prior art, if desired show certain picture in reader, generally require picture is locally downloading, right
After picture is decoded, from being locally mapped to kernel spacing, then user's space is mapped to by kernel spacing, by reader from user
Space is read this decoded pictures and is shown.
In the research and practice process to prior art, it was found by the inventors of the present invention that due to be loaded into file need through
Cross and locally arrive kernel spacing and kernel spacing to two processes of user's space, therefore, treatment effeciency is relatively low；It is additionally, since and read
The general all ratios of the picture of the books read are larger, so, it is loaded into decoded picture and frequently can lead to consumer process committed memory mistake
Height, easily causes process interim card or collapse.
Content of the invention
The embodiment of the present invention provides a kind of image display method based on reader and device, can improve treatment effeciency,
Reduction process interim card and the probability of collapse.
The embodiment of the present invention provides a kind of image display method based on reader, including：
Picture display request is received by reader, described picture display request instruction needs the picture literary composition being shown
Part, described picture file includes multiple picture clusters, and described picture cluster includes multiple pictures；
Picture cluster is obtained from described picture file according to the display request of described picture, and described picture cluster is solved
Code；
Decoded pictures cluster is mapped to internal memory；
Obtain the picture decoded pictures cluster from internal memory, to be shown in reader.
Accordingly, the embodiment of the present invention also provides a kind of image display apparatus based on reader, including：
Receiving unit, for receiving picture display request by reader, described picture display request instruction needs are carried out
The picture file of display, described picture file includes multiple picture clusters, and described picture cluster includes multiple pictures；
Decoding unit, for obtaining picture cluster according to the display request of described picture, and to described from described picture file
Picture cluster is decoded；
Map unit, for mapping to internal memory by decoded pictures cluster；
Display unit, for obtaining the picture in decoded pictures cluster from internal memory, to be shown in reader.
The embodiment of the present invention, after receiving picture display request, can obtain picture according to this request from picture file
Cluster, and picture cluster is decoded, then, decoded pictures cluster is mapped to internal memory, so, subsequently just can be directly from internal memory
Obtain the picture in decoded pictures cluster, to be shown in reader；Because picture cluster can directly be mapped by the program
To internal memory, then directly transferred from internal memory and shown, during accordingly, with respect to existing loading file, needed through local
The speed of file loading to kernel spacing and kernel spacing to for the scheme of two processes of user's space, can be accelerated, greatly
Improve greatly treatment effeciency；It is additionally, since the program and picture file is divided into multiple picture clusters, and using picture cluster as mapping
Base unit, therefore, it can ensure treatment effeciency (process can be reduced if using single picture as processing unit if
Efficiency) while, it is to avoid during loading decoded pictures of led to excessive by picture file, consumer process committed memory is too high
Problem, the probability of process interim card or collapse can be greatly reduced.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, will make to required in embodiment description below
Accompanying drawing be briefly described it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those skilled in the art, on the premise of not paying creative work, can also be obtained other attached according to these accompanying drawings
Figure.
Fig. 1 a is the schematic diagram of a scenario of the image display method based on reader provided in an embodiment of the present invention；
Fig. 1 b is the flow chart of the image display method based on reader provided in an embodiment of the present invention；
Fig. 2 is another flow chart of the image display method based on reader provided in an embodiment of the present invention；
Fig. 3 a is the structural representation of the image display apparatus based on reader provided in an embodiment of the present invention；
Fig. 3 b is another structural representation of the image display apparatus based on reader provided in an embodiment of the present invention；
Fig. 4 is the structural representation of terminal provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other enforcement that those skilled in the art are obtained under the premise of not making creative work
Example, broadly falls into the scope of protection of the invention.
Inventive embodiments provide a kind of image display method based on reader and device.
Wherein, terminal can specifically should be integrated in by the image display apparatus (abbreviation image display apparatus) based on reader
In, for example, with reference to Fig. 1 a, terminal, after reader receives picture display request, such as, receives the picture of user's triggering
After display request, picture cluster can be obtained from picture file according to the display request of this picture, and this picture cluster is decoded,
Then, decoded pictures cluster is mapped in internal memory, so that reader directly can obtain decoded pictures cluster from internal memory
In picture, and shown, and need not move through from local to kernel spacing and from kernel spacing to user's space two mistakes
Journey, greatly reduces process time, has reached the purpose improving treatment effeciency.
Wherein, this picture display request instruction needs the picture file being shown, this picture file includes multiple pictures
Cluster, this picture cluster includes multiple pictures.
It is described in detail respectively below.It should be noted that, the sequence number of following examples is not as preferred to embodiment
The restriction of order.
Embodiment one,
Angle from the image display apparatus based on reader is described by the present embodiment, is somebody's turn to do the picture based on reader
Display device specifically can integrated in the terminal, this terminal can include mobile phone, panel computer, notebook computer or individual calculus
The equipment such as machine (PC, Personal Computer).
A kind of image display method based on reader, abbreviation image display method, including：Picture is received by reader
Display request, obtains picture cluster according to the display request of this picture from this picture file, and this picture cluster is decoded, will solve
After code, picture cluster maps to internal memory, obtains the picture decoded pictures cluster from internal memory, to be shown in reader.
As shown in Figure 1 b, the idiographic flow of this image display method can be as follows：
101st, picture display request is received by reader.
For example, it is possible to the picture display request that receive user or other equipment send, etc.；The display request instruction of this picture
Need the picture file being shown, this picture file includes multiple picture clusters, and this picture cluster includes multiple pictures.
It should be noted that, from storage organization, in embodiments of the present invention, relate generally to tertiary structure：Picture file,
Picture cluster and picture；Why between picture file and two kinds of virtual map units of picture, add one " picture cluster ", mainly former
Because being, if whole picture file is disposably mapped to internal memory, it is excessive to cause once to map internal memory, is easily caused card
, and, every time internal memory and locally stored between carry out data syn-chronization and be also required for refreshing depositing of whole picture file size
Storage, so, performance is not high；In the same manner, if using picture as a virtual map unit, the picture that can often occur needing does not have
There is the situation being mapped in internal memory, it is therefore desirable to frequently be mapped, and so, treatment effeciency can be largely effected on, so,
In embodiments of the present invention, using picture cluster as basic virtual map unit, you can to ensure treatment effeciency it is also possible to keep away
When exempting to Load Image, the too high problem of consumer process committed memory, reduces the probability of process interim card or collapse.
Wherein, the size of picture cluster can be configured according to the demand of practical application (included how many pictures),
This repeats no more.
102nd, picture cluster is obtained from picture file according to the display request of this picture, and this picture cluster is decoded.
For example, it is possible to corresponding picture file is obtained according to the instruction of this picture display request, from the picture literary composition getting
Picture cluster is obtained successively respectively in part.
Wherein it is possible to after respectively the picture cluster in this picture file being decoded, then decoded pictures cluster is mapped to
Internal memory (i.e. execution step 103), or it is also possible to often decode a picture cluster, just this decoded pictures cluster is mapped to internal memory,
Then, return again to decode the next picture cluster in this picture file, and map to internal memory, by that analogy, etc..
Optionally, obtain picture cluster before, can also first determine the picture cluster in this picture file whether decoded and
Being present in caching, if there is not decoded picture cluster in caching, from this picture file, just obtaining picture cluster, otherwise, if
There is decoded picture cluster in caching, then need not have been obtained again, but direct execution step 103, that is, step is " according to this
Picture display request obtains picture cluster from this picture file " before, this image display method can also include：
Determine whether the picture cluster in this picture file has decoded and deposited to caching, if so, then by decoded pictures
Cluster maps to internal memory, i.e. execution step 103；If it is not, then executing according to this picture display request acquisition figure from this picture file
The step (i.e. step 102) of piece cluster.
In the same manner, it is also possible to whether map to interior to decoded pictures cluster before decoded pictures cluster being mapped to internal memory
Deposit into row judgement, then determined whether according to judged result execute map operation, that is, step " according to this picture display request from
Picture cluster is obtained in this picture file " before, this image display method can also include：
Determine whether the picture cluster in this picture file has decoded and deposited to caching, if so, then after determining decoding
When picture cluster has mapped to internal memory, execution obtains decoded pictures cluster (i.e. step 104) from internal memory, to carry out in reader
The step of display；When determining that decoded pictures cluster not yet maps to internal memory, the decoded pictures cluster in caching is mapped by execution
Step (i.e. step 103) to internal memory；Otherwise, if there is not corresponding decoding picture cluster in caching, execute according to this figure
Piece display request obtains the step (i.e. step 102) of picture cluster from this picture file.
103rd, decoded pictures cluster is mapped to internal memory.
For example, specifically decoded pictures cluster can be deposited to caching, then, the decoded pictures cluster in caching be reflected
It is incident upon internal memory.
Optionally, in order to avoid inadequate buffer space, then before picture cluster is deposited to caching after the decoding, can also be right
The size of spatial cache is judged, that is, before step " in decoded pictures cluster being deposited to caching ", this picture display side
Method can also include：
Determine whether there is enough spatial caches and deposit this decoded pictures cluster, if so, then execute decoded pictures
Cluster deposits the step to caching, if it is not, after then spatial cache being extended, execution deposits decoded pictures cluster to caching
In step.
Where it is determined whether exist enough spatial caches deposit this decoded pictures cluster mode can by multiple, than
As it may be determined that the size in current cache space and this needs caching decoded pictures cluster size, then, will be current
The size of the decoded pictures cluster that the size of spatial cache is cached with this needs is compared, if the size in current cache space is big
In the size of the decoded pictures cluster caching equal to this needs, then show that there is enough spatial caches deposits this decoded pictures
Cluster；Otherwise, if the size in current cache space is less than the size of the decoded pictures cluster of this needs caching, show current cache
This decoded pictures cluster is not deposited in space, needs spatial cache is extended.
Optionally, avoid as a example extending unsuccessfully, before spatial cache is extended, can also be to whether allowing to slow
Deposit space to be extended being judged, that is, before step " spatial cache is extended ", this image display method is acceptable
Including：
Determine whether spatial cache is extended, if so, then execute the step that spatial cache is extended；If
No, then, after spatial cache being cleared up, decoded pictures cluster is deposited the step to caching by execution.
Such as it can be determined that whether this spatial cache has reached the upper limit that can extend, if reaching the upper limit, show
Do not allow spatial cache is extended, otherwise, then show to allow spatial cache is extended, etc..
Wherein, mode spatial cache cleared up can have multiple, such as, can search default nearest using figure
Piece Thermometer, exceedes, to determine, the picture that the default time limit do not use, and then, in the buffer this being exceeded the default time limit does not make
With picture cleared up.
Wherein, this default time limit can be configured according to the demand of practical application, and this nearest use picture Thermometer,
The information such as nearest use time and the frequency of recordable picture that are then used for are it is possible to carry out in real time more according to the service condition of picture
Newly.
For example, it is possible to after obtain the picture (i.e. step 104) of decoded pictures cluster from internal memory, according to the figure getting
The service condition of piece to being updated using picture Thermometer recently, such as, specifically can be as follows：
Determine the index of the picture getting, this index is placed in the top using picture Thermometer.
Optionally, in order to avoid Data duplication, improve treatment effeciency, before decoded pictures cluster is mapped to internal memory,
Can also first determining whether this decoded pictures cluster has mapped to internal memory, if having mapped, need not be mapped again, permissible
Directly obtain decoded pictures cluster, i.e. execution step 104 from internal memory；Otherwise, if not yet mapping, just execute decoded pictures cluster
The step mapping to internal memory, i.e. execution step 103.
104th, obtain the picture decoded pictures cluster from internal memory, to be shown in reader.
From the foregoing, it will be observed that the present embodiment, after receiving picture display request, can obtain from picture file according to this request
Take picture cluster, and picture cluster is decoded, then, decoded pictures cluster is mapped to internal memory, so, subsequently just can be direct
Obtain the picture decoded pictures cluster from internal memory, to be shown in reader；Because the program can be directly by picture
Cluster maps to internal memory, is then directly transferred from internal memory and shows, accordingly, with respect to existing loading file when, need through
Cross and locally arrive kernel spacing and kernel spacing to for the scheme of two processes of user's space, file loading can be accelerated
Speed, substantially increases treatment effeciency；It is additionally, since the program and picture file is divided into multiple picture clusters, and with picture cluster
As mapping base unit, therefore, it can ensure treatment effeciency (if using single picture as processing unit if, meeting
Reduce treatment effeciency) while, it is to avoid during loading decoded pictures of led to excessive by picture file, consumer process takies
The too high problem of internal memory, can greatly reduce the probability of process interim card or collapse.
Embodiment two,
Citing is described in further detail by method according to described by embodiment one below.
In the present embodiment, will by this image display apparatus specifically integrated in the terminal as a example illustrate.
As shown in Fig. 2 a kind of image display method based on reader, idiographic flow can be as follows：
201st, terminal receives picture display request by reader, such as, can be sent with receive user or other equipment
Picture display request, etc..
Wherein, this picture display request instruction needs the picture file being shown, this picture file includes multiple pictures
Cluster, this picture cluster includes multiple pictures.
Wherein, the size of picture cluster can be configured according to the demand of practical application (included how many pictures),
This repeats no more.
202nd, terminal determines whether the picture cluster in this picture file has decoded and deposited to caching (i.e. local cache),
If so, then show now directly to read decoded pictures cluster from caching, then can direct execution step 208；If it is not, then
Demonstrate the need for being decoded picture cluster, and write caching, so, now need execution step 203.
For example, terminal can determine the picture cluster being currently needed for processing, and then, inquires about local cache, to determine whether to deposit
Needing the decoding picture cluster corresponding to picture cluster to be processed in this prior, if existing, execution step 208, if not existing, holding
Row step 203.
203rd, terminal obtains picture cluster according to the display request of this picture from picture file, and this picture cluster is solved
Code, then execution step 204.
For example, it is possible to corresponding picture file is obtained according to the instruction of this picture display request, from the picture literary composition getting
Picture cluster is obtained successively respectively in part.
Wherein it is possible to after respectively the picture cluster in this picture file being decoded, then decoded pictures cluster is mapped to
Internal memory (i.e. execution step 103), or it is also possible to often decode a picture cluster, just this decoded pictures cluster is mapped to internal memory,
Then, return again to decode the next picture cluster in this picture file, and map to internal memory, by that analogy, etc..
Such as, include as a example three picture clusters " A ", " B " and " C " by this picture file, then at this point it is possible to obtain picture
Cluster " A ", after picture cluster " A " is decoded, obtains picture cluster " B ", after picture cluster " B " is decoded, then obtains picture cluster
" C ", and picture cluster " C " is decoded, the like, etc., until all picture clusters in this picture file have all decoded
Finish.
Optional it is also possible to after being decoded to picture cluster " A ", execution step 103 (mapping), return again to acquisition figure
Piece cluster " B ", is decoded to picture cluster " B ", then execution step 103 again, returns again to obtain picture cluster " C ", to picture cluster " C "
It is decoded, then execution step 103, then execution step 103, the like, etc., until all figures in this picture file
Piece cluster all decodes and maps and finishes.
204th, terminal determines whether there is enough spatial caches and deposits this decoded pictures cluster, if so, then execution step
208, if it is not, then execution step 205.
Where it is determined whether exist enough spatial caches deposit this decoded pictures cluster mode can by multiple, than
As it may be determined that the size in current cache space and this needs caching decoded pictures cluster size, then, will be current
The size of the decoded pictures cluster that the size of spatial cache is cached with this needs is compared, if the size in current cache space is big
In the size of the decoded pictures cluster caching equal to this needs, then show that there is enough spatial caches deposits this decoded pictures
Cluster；Otherwise, if the size in current cache space is less than the size of the decoded pictures cluster of this needs caching, show current cache
This decoded pictures cluster is not deposited in space, needs spatial cache is extended.
205th, when terminal determines inadequate buffer space to deposit this decoded pictures cluster, it is determined whether allow to spatial cache
It is extended, if so, then execution step 206, if it is not, then execution step 207.
Such as, terminal may determine that whether this spatial cache has reached the upper limit that can extend, if reaching the upper limit,
Show not allow spatial cache is extended, otherwise, then show to allow spatial cache is extended, etc..
Wherein, depending on this upper limit can be according to the demand of practical application, will not be described here.
206th, when terminal determination can be extended to spatial cache, spatial cache is extended, then execution step
208.
207th, when terminal determination cannot be extended to spatial cache, spatial cache is cleared up, then executes step
Rapid 208.
Wherein, mode spatial cache cleared up can have multiple, such as, can search default nearest using figure
Piece Thermometer, exceedes, to determine, the picture that the default time limit do not use, and then, in the buffer this being exceeded the default time limit does not make
With picture cleared up.
Wherein, this default time limit can be configured according to the demand of practical application, and this nearest use picture Thermometer,
The information such as nearest use time and the frequency of recordable picture that are then used for are it is possible to carry out in real time more according to the service condition of picture
Newly.
208th, terminal deposits decoded pictures cluster to caching, then execution step 209.
Now, terminal can also update cache table according to the situation of current cache, and wherein, this cache table is used for preserving caching
The retrieval information of middle Various types of data, such as decoded pictures cluster, can look into the data in caching according to this retrieval information
Ask and read.
209th, terminal determines whether the decoded pictures cluster in caching has mapped to internal memory, if having mapped, executes
Step 211, otherwise, if not yet mapping, execution step 210.
210th, the decoded pictures cluster in caching is mapped to internal memory by terminal, then execution step 211.
For example, terminal can obtain according to cache table needs to map to the decoded pictures of internal memory, then, this needs is reflected
The decoded pictures being incident upon internal memory map to internal memory, etc..
Wherein, specifically decoded pictures cluster can be mapped to by internal memory using mmap function；Mmap is that a kind of internal memory reflects
The method penetrating file, it can realize file disk ground by a file or other object map to the address space of process
The enantiomorphic relationship one by one of one section of virtual address in location and process virtual address space.
211st, terminal obtains the picture decoded pictures cluster from internal memory, to be shown in reader.
Hereafter, terminal can also be according to the service condition of picture getting to being carried out more using picture Thermometer recently
Newly, such as, specifically can be as follows：
The index of the picture that terminal determination gets, this index is placed in the top using picture Thermometer.
From the foregoing, it will be observed that the present embodiment, after receiving picture display request, can obtain from picture file according to this request
Take picture cluster, and picture cluster is decoded, then, decoded pictures cluster is mapped to internal memory, so, subsequently just can be direct
Obtain the picture decoded pictures cluster from internal memory, to be shown in reader；Because the program can be directly by picture
Cluster maps to internal memory, is then directly transferred from internal memory and shows, accordingly, with respect to existing loading file when, need through
Cross and locally arrive kernel spacing and kernel spacing to for the scheme of two processes of user's space, file loading can be accelerated
Speed, substantially increases treatment effeciency；It is additionally, since the program and picture file is divided into multiple picture clusters, and with picture cluster
As mapping base unit, therefore, it can ensure treatment effeciency (if using single picture as processing unit if, meeting
Reduce treatment effeciency) while, it is to avoid during loading decoded pictures of led to excessive by picture file, consumer process takies
The too high problem of internal memory, can greatly reduce the probability of process interim card or collapse.
Further, since the picture that the program uses has decoded in advance and has been cached to local, accordingly, with respect to prior art
For, the operation of decoding picture in main thread when loading can be avoided, interim card can be greatly reduced, be conducive to improving
Consumer's Experience.
Embodiment three,
In order to preferably implement above method, the embodiment of the present invention also provides a kind of display dress of the picture based on reader
Put, abbreviation image display apparatus, as shown in Figure 3 a, this image display apparatus includes receiving unit 301, decoding unit 302, mapping
Unit 303 and display unit 304, as follows：
(1) receiving unit 301；
Receiving unit 301, for receiving picture display request by reader, this picture display request instruction needs are carried out
The picture file of display, this picture file includes multiple picture clusters, and this picture cluster includes multiple pictures.
Wherein, the size of picture cluster can be configured according to the demand of practical application (included how many pictures).
(2) decoding unit 302, for obtaining picture cluster according to the display request of this picture, and to this from this picture file
Picture cluster is decoded.
For example, decoding unit 302, specifically can obtain corresponding picture file according to the instruction of this picture display request,
Picture cluster is obtained successively respectively from the picture file getting.
(3) map unit 303；
Map unit 303, for mapping to internal memory by decoded pictures cluster.
For example, this map unit can include caching subelement and mapping subelement, as follows：
This caching subelement, for depositing decoded pictures cluster to caching.
This mapping subelement, for mapping to internal memory by the decoded pictures cluster in caching.
Optionally, in order to avoid inadequate buffer space, then before picture cluster is deposited to caching after the decoding, can also be right
The size of spatial cache is judged, that is, this map unit can also include judgment sub-unit and extension subelement；
This judgment sub-unit, is used to determine whether that there is enough spatial caches deposits this decoded pictures cluster.
In judgment sub-unit, this extension subelement, for determining that there is not enough spatial caches deposits this decoded pictures
During cluster, spatial cache is extended.
This caching subelement, specifically for determining there is figure after enough spatial caches deposit this decoding in judgment sub-unit
During piece cluster, or after extension subelement is extended to spatial cache, decoded pictures cluster is deposited to caching.
Where it is determined whether exist enough spatial caches deposit this decoded pictures cluster mode can by multiple, than
As judgment sub-unit can determine the size in current cache space and the size of the decoded pictures cluster of this needs caching, so
Afterwards, the size of the decoded pictures cluster size in current cache space being cached with this needs is compared, if current cache is empty
Between size be more than or equal to this needs caching decoded pictures cluster size, then show that there is enough spatial caches deposits this
Decoded pictures cluster；Otherwise, if the size in current cache space is less than the size of the decoded pictures cluster of this needs caching, table
This decoded pictures cluster is not deposited in bright current cache space, needs spatial cache is extended
Optionally, avoid as a example extending unsuccessfully, before spatial cache is extended, can also be to whether allowing to slow
Deposit space to be extended being judged, and when determination cannot be extended, spatial cache is cleared up, i.e. this mapping list
Unit can also include clearing up subelement, as follows：
This judgment sub-unit, can be also used for determining whether spatial cache is extended.
Such as, judgment sub-unit, can be used for judging whether this spatial cache has reached the upper limit that can extend, if
Reach the upper limit, then show not allow spatial cache is extended, otherwise, then show to allow spatial cache is extended, etc.
Deng.
This cleaning subelement, can be used for when judgment sub-unit determination does not allow spatial cache is extended, to slow
Deposit space to be cleared up.
Wherein, mode spatial cache cleared up can have multiple, such as, this cleaning subelement, specifically can use
In searching default nearest use picture Thermometer, exceed, to determine, the picture that the default time limit do not use, this nearest using figure
Piece Thermometer is used for nearest use time and the frequency of recordable picture；In the buffer this is exceeded the figure that the default time limit do not use
Piece is cleared up.
Wherein, this default time limit can be configured according to the demand of practical application, and this nearest use picture Thermometer,
Then it is used for the information such as nearest use time and the frequency of recordable picture.
This extension subelement, specifically can be used for when judgment sub-unit determines that permission is extended to spatial cache, right
Spatial cache is extended；
This caching subelement, specifically can be used for, after cleaning subelement is cleared up to spatial cache, to scheme after decoding
Piece cluster is deposited to caching.
(4) display unit 304；
Display unit 304, for obtaining the picture in decoded pictures cluster from internal memory, to be shown in reader.
Additionally, after employing picture each time, such as after the picture that internal memory obtains this decoded pictures cluster,
Real-time update can also be carried out to " recently using picture Thermometer " according to the service condition of the picture getting, that is, as Fig. 3 b institute
Show, this image display apparatus can also include updating block 305, as follows：
This updating block 305, can be used for the service condition according to the picture getting and uses picture Thermometer to nearest
It is updated, such as, specifically can determine the index of the picture getting, this index is placed in the top using picture Thermometer
Portion, etc..
Optionally, before decoding unit 302 obtains picture cluster, can also first determine that the picture cluster in this picture file is
No decoded and be present in caching, if caching in there is not decoded picture cluster, just from this picture file obtain picture
Cluster, otherwise, if there is decoded picture cluster in caching, need not be obtained, that is, as shown in Figure 3 b, this picture shows again
Device can also include judging unit 306, as follows：
Judging unit 306, for determining whether the picture cluster in this picture file has decoded and deposited to caching, if
It is that then triggering map unit 303 executes the operation that the decoded pictures cluster in caching maps to internal memory；If it is not, then triggering solves
Code unit 302 executes the operation obtaining picture cluster according to the display request of this picture from this picture file.
In the same manner, it is also possible to whether map to interior to decoded pictures cluster before decoded pictures cluster being mapped to internal memory
Deposit into row judgement, then determined whether according to judged result to execute map operation, that is,：
Judging unit 306, can be also used for determining whether this decoded pictures cluster has mapped to internal memory, if having reflected
Penetrate, then triggering display unit 304 executes and obtains decoded pictures cluster from internal memory, with the operation being shown in reader；If
Not yet map, then triggering map unit 303 executes the operation that the decoded pictures cluster in caching maps to internal memory.
That is, if before decoding unit 302 obtains picture cluster, need to " whether the picture cluster in this picture file solves
Code and be present in caching ", and this " whether decoded pictures cluster has mapped to internal memory " is judged, then：
Judging unit 306, whether the picture cluster being specifically determined in this picture file has decoded and has deposited to slow
In depositing, if so, then when determining that decoded pictures cluster has mapped to internal memory, triggering display unit 304 executes and obtains from internal memory
Decoded pictures cluster, with the operation being shown in reader；When determining that decoded pictures cluster not yet maps to internal memory, touch
Send out map unit 303 and execute the operation that the decoded pictures cluster in caching is mapped to internal memory；If the picture in this picture file
Cluster not yet decodes and deposits to caching, then triggering decoding unit 302 executes according to the display request of this picture from this picture file
Obtain the operation of picture cluster.
When being embodied as, above unit can be realized respectively as independent entity it is also possible to carry out any group
Close, to realize as same or several entities, being embodied as of above unit can be found in embodiment of the method above,
This repeats no more.
This image display apparatus specifically can integrated in the terminal, this terminal can include mobile phone, panel computer, notebook
The equipment such as computer or PC.
From the foregoing, it will be observed that the present embodiment receive picture display request after, can by decoding unit 302 according to this request from
Obtain picture cluster in picture file, and picture cluster is decoded, then, by map unit 303, decoded pictures cluster is mapped
To internal memory, so, follow-up display unit 304 just directly can obtain the picture decoded pictures cluster from internal memory, to read
Shown in device；Because picture cluster directly can be mapped to internal memory by the program, then directly carry out transferring from internal memory and
Display, during accordingly, with respect to existing loading file, needs through locally arriving kernel spacing and kernel spacing to user's space
The speed of file loading for the scheme of two processes, can be accelerated, substantially increase treatment effeciency；It is additionally, since the program
Picture file is divided into multiple picture clusters, and using picture cluster as the base unit of mapping, therefore, it can ensureing to process effect
While rate (as processing unit if, treatment effeciency can be reduced if using single picture), it is to avoid because picture file is excessive
During the loading decoded pictures being led to, the too high problem of consumer process committed memory, can greatly reduce process interim card or
The probability of collapse.
Example IV,
Accordingly, the embodiment of the present invention also provides a kind of terminal, as shown in figure 4, this terminal can include radio frequency (RF,
Radio Frequency) circuit 401, include the memory 402 of one or more computer-readable recording mediums, defeated
Enter unit 403, display unit 404, sensor 405, voicefrequency circuit 406, Wireless Fidelity (WiFi, Wireless Fidelity)
The parts such as module 407, the processor 408 including or more than one processing core and power supply 409.This area skill
Art personnel are appreciated that the restriction of the not structure paired terminal of the terminal structure shown in Fig. 4, can include more more than illustrating or more
Few part, or combine some parts, or different part arrangements.Wherein：
RF circuit 401 can be used for receiving and sending messages or communication process in, the reception of signal and transmission, especially, by base station
After downlink information receives, transfer to one or more than one processor 408 is processed；In addition, by be related to up data is activation to
Base station.Generally, RF circuit 401 includes but is not limited to antenna, at least one amplifier, tuner, one or more oscillator, use
Family identity module (SIM, Subscriber Identity Module) card, transceiver, coupler, low-noise amplifier
(LNA, Low Noise Amplifier), duplexer etc..Additionally, RF circuit 401 can also by radio communication and network and its
His equipment communication.Described radio communication can use arbitrary communication standard or agreement, including but not limited to global system for mobile telecommunications system
System (GSM, Global System of Mobile communication), general packet radio service (GPRS, General
Packet Radio Service), CDMA (CDMA, Code Division Multiple Access), wideband code division many
Location (WCDMA, Wideband Code Division Multiple Access), Long Term Evolution (LTE, Long Term
Evolution), Email, Short Message Service (SMS, Short Messaging Service) etc..
Memory 402 can be used for storing software program and module, and processor 408 is stored in memory 402 by operation
Software program and module, thus executing various function application and data processing.Memory 402 can mainly include storing journey
Sequence area and storage data field, wherein, storing program area can the application program needed for storage program area, at least one function (compare
As sound-playing function, image player function etc.) etc.；Storage data field can store according to terminal using the data being created
(such as voice data, phone directory etc.) etc..Additionally, memory 402 can include high-speed random access memory, can also include
Nonvolatile memory, for example, at least one disk memory, flush memory device or other volatile solid-state parts.Phase
Ying Di, memory 402 can also include Memory Controller, to provide processor 408 and input block 403 to memory 402
Access.
Input block 403 can be used for numeral or the character information of receives input, and produces and user setup and function
Control relevant keyboard, mouse, action bars, optics or trace ball signal input.Specifically, in a specific embodiment
In, input block 403 may include Touch sensitive surface and other input equipments.Touch sensitive surface, also referred to as touch display screen or touch
Control plate, can collect user thereon or neighbouring touch operation (such as user use any suitable object such as finger, stylus or
Operation on Touch sensitive surface or near Touch sensitive surface for the annex), and corresponding connection dress is driven according to formula set in advance
Put.Optionally, Touch sensitive surface may include touch detecting apparatus and two parts of touch controller.Wherein, touch detecting apparatus inspection
Survey the touch orientation of user, and detect the signal that touch operation brings, transmit a signal to touch controller；Touch controller from
Receive touch information on touch detecting apparatus, and be converted into contact coordinate, then give processor 408, and can reception processing
Order that device 408 is sent simultaneously is executed.Furthermore, it is possible to it is multiple using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Type realizes Touch sensitive surface.Except Touch sensitive surface, input block 403 can also include other input equipments.Specifically, other are defeated
Enter equipment and can include but is not limited to physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse
One or more of mark, action bars etc..
Display unit 404 can be used for display and by the information of user input or is supplied to the information of user and the various of terminal
Graphical user interface, these graphical user interface can be made up of figure, text, icon, video and its any combination.Display
Unit 404 may include display floater, optionally, can using liquid crystal display (LCD, Liquid Crystal Display),
The forms such as Organic Light Emitting Diode (OLED, Organic Light-Emitting Diode) are configuring display floater.Further
, Touch sensitive surface can cover display floater, when Touch sensitive surface detects thereon or after neighbouring touch operation, sends process to
Device 408, to determine the type of touch event, provides accordingly according to the type of touch event on a display panel with preprocessor 408
Visual output.Although in the diagram, Touch sensitive surface and display floater are to realize inputting as two independent parts and to input
Function, but in some embodiments it is possible to will be integrated to Touch sensitive surface and display floater and realize input and output function.
Terminal may also include at least one sensor 405, such as optical sensor, motion sensor and other sensors.
Specifically, optical sensor may include ambient light sensor and proximity transducer, and wherein, ambient light sensor can be according to ambient light
The brightness to adjust display floater for the light and shade, proximity transducer can cut out display floater and/or the back of the body when terminal moves in one's ear
Light.As one kind of motion sensor, Gravity accelerometer can detect (generally three axles) acceleration in all directions
Size, can detect that size and the direction of gravity when static, can be used for identify mobile phone attitude application (such as horizontal/vertical screen switching,
Dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；Can also configure as terminal
Gyroscope, barometer, hygrometer, thermometer, the other sensors such as infrared ray sensor, will not be described here.
Voicefrequency circuit 406, loudspeaker, microphone can provide the COBBAIF between user and terminal.Voicefrequency circuit 406 can
Electric signal after the voice data receiving is changed, is transferred to loudspeaker, is converted to voice signal output by loudspeaker；Another
Aspect, the voice signal of collection is converted to electric signal by microphone, is converted to voice data after being received by voicefrequency circuit 406, then
After voice data output processor 408 is processed, through RF circuit 401 being sent to such as another terminal, or by voice data
Export to memory 402 to process further.Voicefrequency circuit 406 is also possible that earphone jack, with provide peripheral hardware earphone with
The communication of terminal.
WiFi belongs to short range wireless transmission technology, and terminal can help user's transceiver electronicses postal by WiFi module 407
Part, browse webpage and access streaming video etc., it has provided the user wireless broadband internet and has accessed.Although Fig. 4 shows
WiFi module 407, but it is understood that, it is simultaneously not belonging to must be configured into of terminal, can not change as needed completely
Omit in the scope of the essence becoming invention.
Processor 408 is the control centre of terminal, using the various pieces of various interfaces and connection whole mobile phone, leads to
Cross and run or software program and/or module that execution is stored in memory 402, and call and be stored in memory 402
Data, the various functions of execution terminal and processing data, thus carry out integral monitoring to mobile phone.Optionally, processor 408 can wrap
Include one or more processing cores；Preferably, processor 408 can integrated application processor and modem processor, wherein, should
Mainly process operating system, user interface and application program etc. with processor, modem processor mainly processes radio communication.
It is understood that above-mentioned modem processor can not also be integrated in processor 408.
Terminal also includes the power supply 409 (such as battery) powered to all parts it is preferred that power supply can pass through power supply pipe
Reason system is logically contiguous with processor 408, thus realizing management charging, electric discharge and power managed by power-supply management system
Etc. function.Power supply 409 can also include one or more direct current or AC power, recharging system, power failure inspection
The random component such as slowdown monitoring circuit, power supply changeover device or inverter, power supply status indicator.
Although not shown, terminal can also include camera, bluetooth module etc., will not be described here.Specifically in this enforcement
In example, the processor 408 in terminal can be according to following instruction, will be corresponding for the process of one or more application program
Executable file is loaded in memory 402, and to be run the application program being stored in memory 402 by processor 408, from
And realize various functions：
Picture display request is received by reader, the display request instruction of this picture needs the picture file being shown,
This picture file includes multiple picture clusters, and this picture cluster includes multiple pictures；According to the display request of this picture from this picture file
Middle acquisition picture cluster, and this picture cluster is decoded, decoded pictures cluster is mapped to internal memory, schemes after internal memory obtains decoding
Picture in piece cluster, to be shown in reader.
Optionally, obtain picture cluster before, can also first determine the picture cluster in this picture file whether decoded and
Being present in caching, if there is not decoded picture cluster in caching, from this picture file, just obtaining picture cluster, otherwise, if
There is decoded picture cluster in caching, then need not have been obtained again, but directly from caching, read this decoded pictures,
Then execute the operation that decoded pictures cluster is mapped to internal memory.
Optionally, in order to avoid inadequate buffer space, then before picture cluster is deposited to caching after the decoding, can also be right
The size of spatial cache is judged, that is, this is stored in the application program in memory 402, can also implement function such as：
Determine whether there is enough spatial caches and deposit this decoded pictures cluster, if so, then execute decoded pictures
Cluster deposits the operation to caching, if it is not, after then spatial cache being extended, execution deposits decoded pictures cluster to caching
In operation.
Optionally, avoid as a example extending unsuccessfully, before spatial cache is extended, can also be to whether allowing to slow
Deposit space to be extended being judged, that is, this is stored in the application program in memory 402, can also implement function such as：
Determine whether spatial cache is extended, if so, then execute the operation that spatial cache is extended；If
No, then, after spatial cache being cleared up, decoded pictures cluster is deposited the operation to caching by execution.
Optionally, in order to avoid Data duplication, improve treatment effeciency, before decoded pictures cluster is mapped to internal memory,
Can also first determining whether this decoded pictures cluster has mapped to internal memory, if having mapped, need not be mapped again, permissible
Directly obtain decoded pictures cluster from internal memory, etc..
What each operated above is embodied as can be found in embodiment above, will not be described here.
From the foregoing, it will be observed that the terminal of the present embodiment is after receiving picture display request, can be according to this request from picture literary composition
Obtain picture cluster in part, and picture cluster is decoded, then, decoded pictures cluster is mapped to internal memory, so, subsequently can
Directly to obtain the picture decoded pictures cluster from internal memory, to be shown in reader；Because the program can be direct
Picture cluster is mapped to internal memory, is then directly transferred from internal memory and show, during accordingly, with respect to existing loading file,
Need, through locally arriving kernel spacing and kernel spacing to for the scheme of two processes of user's space, file can be accelerated
The speed being loaded into, substantially increases treatment effeciency；It is additionally, since the program and picture file is divided into multiple picture clusters, and with
Picture cluster, as the base unit of mapping, therefore, it can ensureing treatment effeciency (if using single picture as processing unit
Words, can reduce treatment effeciency) while, it is to avoid during loading decoded pictures of led to excessive by picture file, Yong Hujin
The too high problem of journey committed memory, can greatly reduce the probability of process interim card or collapse.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
Completed with the hardware instructing correlation by program, this program can be stored in a computer-readable recording medium, storage
Medium can include：Read-only storage (ROM, Read Only Memory), random access memory (RAM, Random
Access Memory), disk or CD etc..
A kind of image display method based on the reader above embodiment of the present invention being provided and device have been carried out in detail
Thin introduce, specific case used herein is set forth to the principle of the present invention and embodiment, the saying of above example
Bright it is only intended to help and understands the method for the present invention and its core concept；Simultaneously for those skilled in the art, according to this
Bright thought, all will change in specific embodiments and applications, and in sum, this specification content should not be managed
Solve as limitation of the present invention.
Claims (16)
1. a kind of image display method based on reader is it is characterised in that include：
Picture display request is received by reader, described picture display request instruction needs the picture file being shown, institute
State picture file and include multiple picture clusters, described picture cluster includes multiple pictures；
Picture cluster is obtained from described picture file according to the display request of described picture, and described picture cluster is decoded；
Decoded pictures cluster is mapped to internal memory；
Obtain the picture decoded pictures cluster from internal memory, to be shown in reader.
2. method according to claim 1 is it is characterised in that described map to internal memory by decoded pictures cluster, including：
Decoded pictures cluster is deposited to caching；
Decoded pictures cluster in caching is mapped to internal memory.
3. method according to claim 2 it is characterised in that described by decoded pictures cluster deposit to caching in before,
Also include：
Determine whether there is enough spatial caches and deposit described decoded pictures cluster；
If so, then execute and decoded pictures cluster is deposited the step to caching；
If it is not, after then spatial cache being extended, decoded pictures cluster is deposited the step to caching by execution.
4. method according to claim 3 it is characterised in that described spatial cache is extended before, also include：
Determine whether spatial cache is extended；
If so, then execute the step that spatial cache is extended；
If it is not, after then spatial cache being cleared up, decoded pictures cluster is deposited the step to caching by execution.
5. method according to claim 4 is it is characterised in that described clear up to spatial cache, including：
Search default nearest use picture Thermometer, exceed, to determine, the picture that the default time limit do not use, described make recently
It is used for nearest use time and the frequency of recordable picture with picture Thermometer；
Exceed described the picture that the default time limit do not use and cleared up in the buffer.
6. method according to claim 5 it is characterised in that described from internal memory obtain decoded pictures cluster picture, with
After reader is shown, also include：
Service condition according to the picture getting is to being updated using picture Thermometer recently.
7. method according to claim 6 is it is characterised in that the service condition of picture that gets of described basis is to nearest
It is updated using picture Thermometer, including：
Determine the index of the picture getting；
Described index is placed in the top using picture Thermometer.
8. the method according to any one of claim 1 to 7 it is characterised in that described decoded pictures cluster is mapped in
Before depositing, also include：
Determine whether decoded pictures cluster has mapped to internal memory；
If so, the picture obtaining decoded pictures cluster from internal memory, the step to be shown in reader are then executed；
If it is not, then executing the step that decoded pictures cluster is mapped to internal memory.
9. the method according to any one of claim 2 to 7 it is characterised in that described according to described picture display request from
Before obtaining picture cluster in described picture file, also include：
Determine whether the picture cluster in described picture file has decoded and deposited to caching；
If so, then determine decoded pictures cluster mapped to internal memory when, execution from internal memory obtain decoded pictures cluster, with
The step being shown in reader；When determining that decoded pictures cluster not yet maps to internal memory, execute the decoding in caching
The step that picture cluster maps to internal memory afterwards；
If it is not, then executing the step that picture cluster is obtained from described picture file according to the display request of described picture.
10. a kind of image display apparatus based on reader are it is characterised in that include：
Receiving unit, for receiving picture display request by reader, described picture display request instruction needs are shown
Picture file, described picture file includes multiple picture clusters, and described picture cluster includes multiple pictures；
Decoding unit, for obtaining picture cluster according to the display request of described picture, and to described picture from described picture file
Cluster is decoded；
Map unit, for mapping to internal memory by decoded pictures cluster；
Display unit, for obtaining the picture in decoded pictures cluster from internal memory, to be shown in reader.
11. devices according to claim 10 are it is characterised in that described map unit includes caching subelement and mapping
Unit；
Described caching subelement, for depositing decoded pictures cluster to caching；
Described mapping subelement, for mapping to internal memory by the decoded pictures cluster in caching.
12. devices according to claim 11 are it is characterised in that described map unit also includes judgment sub-unit and extension
Subelement；
Described judgment sub-unit, is used to determine whether that there is enough spatial caches deposits described decoded pictures cluster；
In judgment sub-unit, described extension subelement, for determining that there is not enough spatial caches deposits described decoded pictures
During cluster, spatial cache is extended；
Described caching subelement, schemes specifically for determining to exist after enough spatial caches deposit described decoding in judgment sub-unit
During piece cluster, or after extension subelement is extended to spatial cache, decoded pictures cluster is deposited to caching.
13. devices according to claim 12 are it is characterised in that described map unit also includes clearing up subelement；
Described judgment sub-unit, is also used to determine whether to allow spatial cache is extended；
Described cleaning subelement, for when judgment sub-unit determination does not allow spatial cache is extended, to spatial cache
Cleared up；
Described extension subelement, specifically for when judgment sub-unit determines that permission is extended to spatial cache, empty to caching
Between be extended；
Described caching subelement, specifically for, after cleaning subelement is cleared up to spatial cache, decoded pictures cluster being deposited
Put to caching.
14. devices according to claim 13 it is characterised in that
Described cleaning subelement, specifically for searching default nearest use picture Thermometer, to determine that exceeding the default time limit does not have
There is the picture of use, described nearest use picture Thermometer is used for nearest use time and the frequency of recordable picture；In the buffer
Exceed described the picture that the default time limit do not use and cleared up.
15. devices according to claim 14 are it is characterised in that also include updating block；
Described updating block, for determining the index of the picture getting, described index is placed in the top using picture Thermometer
Portion.
16. devices according to any one of claim 11 to 15, it is characterised in that also including judging unit, are used for：
Determine whether the picture cluster in described picture file has decoded and deposited to caching；
If so, then when determining that decoded pictures cluster has mapped to internal memory, triggering display unit execution obtains decoding from internal memory
Picture cluster afterwards, with the operation being shown in reader；When determining that decoded pictures cluster not yet maps to internal memory, triggering is reflected
Penetrate the operation that the decoded pictures cluster in caching is mapped to internal memory by unit execution；
If it is not, then the execution of triggering decoding unit obtains the behaviour of picture cluster from described picture file according to the display request of described picture
Make.
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