在 Linux 中調試 OpenGL ES 應用程序可以通過以下幾個步驟來完成:
sudo apt-get install libgles2-mesa-dev libegl1-mesa-dev
#include <EGL/egl.h>
#include <GLES2/gl2.h>
#include<stdio.h>
int main(int argc, char *argv[]) {
EGLDisplay display;
EGLConfig config;
EGLContext context;
EGLSurface surface;
EGLint numConfigs;
EGLint majorVersion, minorVersion;
EGLBoolean result;
const EGLint configAttribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_DEPTH_SIZE, 24,
EGL_STENCIL_SIZE, 8,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_NONE
};
// Initialize EGL
display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (display == EGL_NO_DISPLAY) {
printf("Error: No display found.\n");
return -1;
}
result = eglInitialize(display, &majorVersion, &minorVersion);
if (result != EGL_TRUE) {
printf("Error: eglInitialize failed.\n");
return -1;
}
// Choose a configuration
result = eglChooseConfig(display, configAttribs, &config, 1, &numConfigs);
if (result != EGL_TRUE || numConfigs == 0) {
printf("Error: eglChooseConfig failed.\n");
return -1;
}
// Create a context
context = eglCreateContext(display, config, EGL_NO_CONTEXT, NULL);
if (context == EGL_NO_CONTEXT) {
printf("Error: eglCreateContext failed.\n");
return -1;
}
// Create a window surface
// This is where you would create your native window using your windowing system
// For this example, we'll just use an empty placeholder
EGLNativeWindowType window = NULL;
surface = eglCreateWindowSurface(display, config, window, NULL);
if (surface == EGL_NO_SURFACE) {
printf("Error: eglCreateWindowSurface failed.\n");
return -1;
}
// Make the context current
result = eglMakeCurrent(display, surface, surface, context);
if (result != EGL_TRUE) {
printf("Error: eglMakeCurrent failed.\n");
return -1;
}
// Your OpenGL ES rendering code goes here
// Terminate EGL when finished
eglTerminate(display);
return 0;
}
gcc main.c -o opengles_app -lEGL -lGLESv2
然后運行生成的可執行文件:
./opengles_app
首先,使用調試符號編譯應用程序:
gcc -g main.c -o opengles_app -lEGL -lGLESv2
然后,使用 gdb 啟動調試會話:
gdb ./opengles_app
在 gdb 提示符下,設置斷點、單步執行等,就像調試任何其他 C/C++ 程序一樣。
通過以上步驟,您應該能夠在 Linux 中調試 OpenGL ES 應用程序。如果遇到問題,請查閱相關文檔或在社區論壇中尋求幫助。