在 Linux 中调试 OpenGL ES 应用程序可以通过以下几个步骤来完成:
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
然后运行生成的可执行文件:
./opengles_app
首先,使用调试符号编译应用程序:
gcc -g main.c -o opengles_app -lEGL -lGLESv2
然后,使用 gdb 启动调试会话:
gdb ./opengles_app
在 gdb 提示符下,设置断点、单步执行等,就像调试任何其他 C/C++ 程序一样。
通过以上步骤,您应该能够在 Linux 中调试 OpenGL ES 应用程序。如果遇到问题,请查阅相关文档或在社区论坛中寻求帮助。