Android:NDK:OpenGLES

lastmod 2018-08-17created 2016-05-173 edits

Notes on how to implement Android OpenGLES in the NDK.

How to use

To use it from JNI, you need to add the related libraries. The list of related libraries is below.

LOCAL_LDLIBS := -lEGL -lGLESv1_CM -lOpenSLES -lGLESv2

Using OpenGLES 2.0

• http://lsit81.tistory.com/entry/Android-%EB%9D%BC%EC%9D%B4%EB%B8%8C-%ED%95%84%ED%84%B0-%EB%A7%8C%EB%93%A4%EA%B8%B0-7-1

On Android, if you use OpenGLES without any extra configuration, it runs based on version 1.0. ¹

You also need to add -lGLESv2 to the LOCAL_LDLIBS option in the Android.mk build configuration file. In C/C++, you can use opengl es 2.0 by including the two headers #include <GLES2/gl2.h> and #include <GLES2/gl2ext.h>. How to display OpenGLES information is shown below:

static void PrintGLString(const char *name, GLenum s)
{
    const char *v = (const char *) glGetString(s);
    LOGI(TAG, "GL %s = %s\n", name, v);
}

static void printOpenGLInfo() 
{
    PrintGLString("Version", GL_VERSION);       // OpenGLES Version 표시 
    PrintGLString("Vendor", GL_VENDOR);     // Chip set Vendor
    PrintGLString("Renderer", GL_RENDERER); // 그래픽 칩셋 모델 정보.
    PrintGLString("Extensions", GL_EXTENSIONS); // 좀더 자세한 정보를 보실수 있습니다.
}

Android OpenGLES NDK tutorial list

• http://berabue.tistory.com/category/Android/OpenGL

See the files below.

• NDK OpenGL 01 Preparing the project: Berabue_android_ndk_opengl_01.pdf
• NDK OpenGL 02 Setting the resolution: Berabue_android_ndk_opengl_02.pdf
• NDK OpenGL 03 Applying textures: Berabue_android_ndk_opengl_03.pdf
• NDK OpenGL 04 Creating a thread: Berabue_android_ndk_opengl_04.pdf
• NDK OpenGL 05 Rendering non-power-of-two textures: Berabue_android_ndk_opengl_05.pdf
• NDK OpenGL 06 Textures my way: Berabue_android_ndk_opengl_06.pdf

See also

• Android NDK
• Android:OpenGLES

Favorite site

• NDK-OpenGL 01. Preparing the project

References