- OPENGL 2.0 ANDROID EMULATOR FOR ANDROID
- OPENGL 2.0 ANDROID EMULATOR SOFTWARE
- OPENGL 2.0 ANDROID EMULATOR CODE
LibGLESv2.so: OpenGL ES 2.0 Wrapper Library LibGLESv1_CM.so: Wrapper Library of OpenGL ES 1.x API
OPENGL 2.0 ANDROID EMULATOR CODE
Its corresponding source code path is: / frameworks/native/opengl/libs/, where: The OpenGL ES/EGL Wrapper library is a library that binds the OpenGLES API and the OpenGLES API implementation together.
OPENGL 2.0 ANDROID EMULATOR SOFTWARE
The invocation relationships of the entire OpenGL software hierarchy stack are as follows: At the bottom of the wrapper layer is the specific software or hardware implementation of the OpenGL ES API. At the top is the Java layer, then the JNI layer, and then call the wrapper layer below. OpenGL ES Software Hierarchy Stack in AndroidĪccording to the design of hierarchical concept, the OpenGL ES implementation in Android is also hierarchical design, forming a software hierarchical stack. System vendors usually encapsulate the implementation of these two sets of APIs in a shared link library, but according to the latest standards, the shared link libraries implemented by OpenGL ES API and the shared link libraries implemented by EGL API are separated independently, such as the OpenGLES and EGL API implementation libraries listed in Section 2.2 for Nexus 9 tablet devices. Plus: Similarly, as in the previous article Android System Graphics Stack: Introduction to OpenGL ES and EGL The EGL is also a set of APIs, and its implementation needs to be provided by system vendors.
OPENGL 2.0 ANDROID EMULATOR FOR ANDROID
However, for Android systems like Android Emulator, the OpenGL ES libraries are implemented by software simulation unless the OpenGLES API instructions are redirected to the GPU of the host system for accelerated execution. Now, because GPU modules are integrated in Soc chip of Android mobile phone, the OpenGL ES Library of hardware acceleration is used here. It provides standard OpenGL ES API for applications up, binds OpenGL ES libraries implemented by different vendors down, and binds OpenGL ES API and corresponding implementation functions one by one.įurthermore, the implementation of OpenGL ES library is divided into: OpenGL ES Wrapper Library: OpenGL ES Wrapper Library is a package library encapsulating OpenGL ES API. Because the GPU hardware structure of each graphics card manufacturer is different, the OpenGL ES libraries of each manufacturer are also different, so the OpenGLES libraries in Android system are usually provided by hardware manufacturer, usually stored under / system/lib64/egl or / vendor/lib64/egl directory in Android system. OpenGL ES libraries: OpenGLES libraries are concrete implementations of API s defined in OpenGLES above. It abstracts the functions of GPU, so that application developers do not need to care about the underlying GPU type and specific implementation. It defines a set of API s that can be called by upper application. OpenGL ES: It is only a protocol specification. The difference between OpenGL ES and OpenGLES Libraries
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