to this question. You can find it here.Want some sample code?
Peter Bengtsson recently sent code for a sample program showing how to perform ycrcb to RGB conversion with a fragment shader (pixel shader) in OpenGL. he says that it is tested on Linux but shoshould be usable on windows with only minor rework. please contact him directly (Tesla at och dot Nu) with questions or comments.The thorny issue of HD video
Just when you thought things were quietening down, Richard salmon correctly points ou
=" http://get.qt.nokia.com/qtsdk/qt-sdk-linux-x86-opensource-2010.04.bin "target =" _ blank "> http://get.qt.nokia.com/qtsdk/qt-sdk-linux-x86-opensource-2010.04.bin)2. QT 4.6.3 package qt-everywhere-opensource-src-4.6.3.tar.gz for Embedded Linux (QT libraries 4.6.3 for Linux/X11 (161 MB ))3. Copy the arm-linux-gcc-4.3.2.tgz to the CD Linux/to prepare for use
4、your root_qtopia-20100108.tar.gzDecompress the qt-everywhere-opensource-src-4.6.3.tar.gz package into three parts, respectively compile
specify the shape of both ends of the line. Predefined shape: linecap. round, linecap. arrowanchor, for example, Pen. startcap = linecap. round; 2 use a custom shape. If you use a custom end shape, use pen. customstartcap and pen. customendcap attributes customlineca... read the full text posted @ Addo read (536) | comment (1) Edit
C # drawing basic graphics unit command Summary: 1 Define the drawing board graphics G = paintevnt. graphics; // graphics G = This. creategraphics (); // or generat
S60 Application Framework
I. Symbian OS Engineering Structure
1. directory structure
The public header file provided by the system.
Data: Resource Directory, which stores program resource files (. RSS/. rls/_ reg. RSS ).
Help: Help file directory to store help files.
INC: project-related header files.
SRC: source file related to the project.
GFX: stores program icons.
GROUP: The project directory that stores the files used for compiling information (.
the "Start Method Profiling" button above (the red dot turns black to Start running), and then operate our choppy UI, click "Stop Method Profiling" to open the following interface:
The figure shows the call relationship, number of calls, and time consumption ratio of each method during the Trace process. Through analysis, suspicious time-consuming functions can be found and optimized;
5) systrace: capture trace:
> Run the following command:
$ Cd android-sdk/platform-tools/systrace
$ Python sys
operating system: You can regard it as the Chromium Port of WebCore ). Some parts, such as font rendering, must be processed separately for each operating system platform. Network Traffic is handled by our multi-process resource loading system, rather than directly calling the operating system by the rendering process. Use the Skia graphics library developed for Android. This is a cross-platform graphics library that processes all images and images except text. Skia is located in/third_party/sk
point marker lineLineWidth:0,//size of the data point marker lineRadius $,//data point marker radiusSymbol'Triangle'//' URL (Http://highcharts.com/demo/gfx/sun.png) '//data point marker shape (triangle triangle, or picture, etc.)}}}, stickytracking: true,//track stickiness (such as line graph, if this setting is negative, then it must point to the data point to react)Visibletrue,//set to False to not show the graphZIndex:NULL //level },
) Open File Qplatformdefs.h add#undef o_cloexecHere is the main solution: accept4 function problem not found during compilation4) Install X11 Librarysudo apt-get install Libx11-dev libxext-dev Libxtst-dev5) Return to source directory qt-everywhere-opensource-src-4.8.6 configuration./configure--prefix=/opt/qt4.8.6-opensource-confirm-license-qt-sql-sqlite-qt-gfx-linuxfb-plugin-sql-sqlit- No-qt3support-no-phonon-no-svg-no-webkit-no-javascript-jit-no-scri
implement it: @Override PublicViewAcquireanchorview() {View Anchorview =NewView (GetContext ()); AddView (Anchorview);returnAnchorview; }@Override Public void setanchorviewposition(View view,floatXfloatYfloatWidthfloatHeight) {log.e (TAG,"setanchorviewposition isn ' t implemented"); }@Override Public void Releaseanchorview(View Anchorview) {Removeview (Anchorview); }Add a member Variable:// The ViewAndroid is used to keep screen on during video playback.private ViewAndroid mVi
Google Code version of the extract.
Build : Build the relevant configuration, shared by all projects.
cc :chromium synthesizer implementation.
Chrome :chromium Browser main program module implementation code, core code .
Chrome/test/data : A data file that runs some tests.
Components : The component directory that the browser relies on.
content : The core code of a multi-process sandbox browser rendering page.
Net : The network function library developed for chromium.
report project. Directly from the Google Code version of the extract.
Build: Build the relevant configuration, shared by all projects.
cc: Chromium synthesizer implementation.
Chrome: Chromium Browser Main program module implementation code, the core code.
chrome/test/data: A data file that runs some tests.
components: Browser-dependent component directory.
content : The core code of a multi-process sandbox browser rendering page.
NET: The network function library developed for ch
Code version of the extract.
Build: Builds the related configuration, shared by all projects. The
Cc:chromium synthesizer implementation.
Chrome:chromium Browser Main program module implementation code, core code.
Chrome/test/data: A data file that runs some tests.
Components: The component directory that the browser relies on.
Content: The core code of a multi-process sandbox browser rendering page.
Net: The network function library devel
:
Insmod cmemk. Ko phys_start = 0x8e300000 phys_end = 0x8f200000 pools = 1 x 300hrs, 1 X 1429hrs, 6x1048576, 4 x 829hrs, 1x4096x132132, 20 X allowoverlap =
9. To set the uboot startup parameters, add "mem = 227 m omapfb. vrfb = Y ", especially" omapfb. vrfb = y "must be added; otherwise, the error" omapdss dispc error: gfx_polico_underflow, disabling GFX "will make you very big. My startup parameters are as follows:
Console = ttys2, 115200n8 V
image processing softwareHttp://www.wotsit.org/list.asp?fc=1 image File Format Daquanhttp://blog.csdn.net/zgke/archive/2010/03/25/5414261.aspx image File Format relatedHttp://www.martinreddy.net/gfx/2d/IFF.txt image File Format relatedhttp://www.52hutu.com/show.aspx?ID=63306559816187500046 image File Format relatedhttp://www.cnblogs.com/xiaotie/archive/2011/03/09/1978121.html image File Format relatedhttp://www.cnblogs.com/haar/articles/1392227.html
of the display areas. adaptive adjustment is required.
This part involves modifications to the framebuffer and gfx Device Drivers (this part can be basically met by the set-top box vendors ),
However, many companies do not align the coordinate offset between the graphic layer and the video layer. As a result, some graphic layers are hidden.
Surfaceflinger and openGl ES interfaces are involved in the efficient implementation of 2D/3D hardware acceler
operating system processing
The image uses the Skia graphics library developed for Android. This is a cross-platform graphics library that handles all graphics and images in addition to text. Skia in the/third_party/skia. The main entrance to graphics operations is/webkit/port/platform/graphics/graphicscontextskia.cpp. It uses a lot of other files in this directory, as well as the files in the/BASE/GFX.
The WebKit glue (glue)Chromium applica
. As shown in.3. After the setup is complete, we will be working on the tracking process. After the trace time is over, generate the trace.html file.4. Use Chrome to open the trace.html file for analysis. The method of analysis, which will be described later.using Systrace with the command lineAndroid provides a Python script file systrace.py, which is located in the Android SDK directory/tools/systrace, and we can execute the following command to use Systrace:$ cd android-sdk/platform-tools/sys
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.