surfaceflinger android

Transferred from: http://blog.csdn.net/luoshengyang/article/details/7857163In describing the relationship between Android applications and Surfaceflinger Services, it is mentioned that every android application with a UI needs to The Surfaceflinger service establishes a connection so that the

When describing the relationship between Android applications and the surfaceflinger service, we mentioned that every android application with a UI needs to establish a connection with the surfaceflinger service, this connection allows you to request the surfaceflinger servi

Surfaceflinger is loaded as a system service in the system startup phase. Each window in the application corresponds to the surface in the local code, and the surface corresponds to each layer in surfaceflinger. The main function of surfaceflinger is to apply for memory for these layers, manage the layer display, hide, and re-draw operations based on application

Surfaceflinger of Android GDI Surfacefinger is translated as a surface shipper by English. The structure of sufaceflinger is not too complex, but the complexity of sufaceflinger is its client construction. The main functions of sufaceflinger are: 1) refresh the content of layers (surfaces) to the screen. 2) maintain the zorder sequence of the layer and perform the cropping calculation on the final output of

SurfaceFlinger (3) of android Gui system and androidgui System7. SurfaceFlinger SurfaceFlinger has been mentioned in the previous section and is involved in many cases. SurfaceFlinger is the core of GUI refreshing UI, so any improvements to

Document directory 1. sharedclient 2. sharedbufferstack, sharedbufferserver, and sharedbufferclient Http://blog.csdn.net/DroidPhone/article/details/5972568 Surfaceflinger is loaded as a system service in the system startup phase. Each window in the application corresponds to the surface in the local code, and the surface corresponds to each layer in surfaceflinger. The main function of

This article is a summary of the source code. Please specify the source for the transfer. Thank you. Welcome to your discussion. Qq: 1037701636 email: gzzaigcn2012@gmail.com Android source code Version: 4.2.2; hardware platform A31 Step1. the previous blogs are recording the SurfaceFLinger side, that is, the so-called Server side. Next, let's take a look at how the client will transfer the image informat

Different types of surface in applications correspond to different layer classes in the surfaceflinger of the local layer of frameworks. This article mainly discusses the implementation and differences of these layers. Before reading this article, you 'd better understand surfaceflinger, a system service. For more information, see my following two articles: Sharedclient in

. status_t Hwcomposer::commit () {int err = No_error; if (MHWC) {if (!hwchasapiversion (MHWC, hwc_device_api_version_1_1)) {//On VERSION 1.0, the Ope NGL ES Target surface is communicated//by the (Dpy, Sur) fields and we were guaranteed to has only A single display. Mlists[0]->dpy = Eglgetcurrentdisplay (); Mlists[0]->sur = Eglgetcurrentsurface (Egl_draw); } for (size_t i=virtual_display_id_base; i Call Mhwc->set to compose and output

1.1 Surfaceflinger Starting from this section, we formally cut into Surfaceflinger's analysis. In order to maintain the continuity of the presentation, some of the content may have been covered in the previous chapters, and the details will be expanded to include further explanations. The content is organized as follows: L First introduce the new features introduced by Android 4.1 (Project Butter), it is

1th Chapter The Surfaceflinger of GUI system Before entering the GUI system, we recommend that you read the "Opengles" section in the application of this book and see the official OpenGL ES Guide. Because the Android GUI system is based on OPENGL/EGL to achieve, if there is no basis for the analysis of the source code may be "less effort." 1.1 Opengles and EGL Surfac