Steward
分享是一種喜悅、更是一種幸福
掌機 - Miyoo A30 - C/C++ - OpenGL ES 2.0 - Get Version
參考資訊:
https://www.khronos.org/assets/uploads/books/openglr_es_20_programming_guide_sample.pdf
main.c
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <string.h> #include <dlfcn.h> #include <unistd.h> #include <EGL/egl.h> #include <GLES2/gl2.h> int main ( int argc, char ** argv) { EGLint egl_major = 0; EGLint egl_minor = 0; EGLint num_configs = 0; EGLConfig configs = {0}; EGLDisplay display = EGL_NO_DISPLAY ; EGLSurface surface = EGL_NO_SURFACE ; EGLContext context = EGL_NO_CONTEXT ; EGLint config_attribs[] = { EGL_SURFACE_TYPE , EGL_WINDOW_BIT , EGL_RENDERABLE_TYPE , EGL_OPENGL_ES2_BIT , EGL_RED_SIZE , 8, EGL_GREEN_SIZE , 8, EGL_BLUE_SIZE , 8, EGL_ALPHA_SIZE , 8, EGL_NONE }; EGLint window_attributes[] = { EGL_RENDER_BUFFER , EGL_BACK_BUFFER , EGL_NONE }; EGLint const context_attributes[] = { EGL_CONTEXT_CLIENT_VERSION , 2, EGL_NONE , }; display = eglGetDisplay ( EGL_DEFAULT_DISPLAY ); eglInitialize ( display , &egl_major, &egl_minor); eglChooseConfig ( display , config_attribs, &configs, 1, &num_configs); surface = eglCreateWindowSurface ( display , configs, 0, window_attributes); context = eglCreateContext ( display , configs, EGL_NO_CONTEXT , context_attributes); eglMakeCurrent ( display , surface, surface, context ); printf ( "%s\n" , glGetString ( GL_VERSION )); eglMakeCurrent ( display , EGL_NO_SURFACE , EGL_NO_SURFACE , EGL_NO_CONTEXT ); eglDestroyContext ( display , context ); eglDestroySurface ( display , surface); eglTerminate ( display ); return 0; } |
編譯
$ /opt/a30/bin/arm-linux-gcc main.c -o test -lGLESv2 -lEGL -ldl
執行
root@MIYOO282:/# /tmp/test OpenGL ES 2.0 "mali450-r5p1-01rel0-lollipop-252-gcc9bf62"