如何创建一个与EGL display兼容的DC或者bitmap
memdc = CreateCompatibleDC( (HDC)display );
bitmap = CreateCompatibleBitmap((HDC)display, width, height);
这两个老是创建失败。,不知道是什么原因
EGL的初始化如下
EGLint config_list[] = {
EGL_RED_SIZE, 5,
EGL_GREEN_SIZE, 6,
EGL_BLUE_SIZE, 5,
#if defined(OPENGLES_TEST)
EGL_DEPTH_SIZE, 24,
#endif
EGL_NONE
};
EGLint num_config;
g_dpy = GetDC(gHWND);
display = eglGetDisplay(g_dpy);
if (eglInitialize(display, NULL, NULL) == EGL_FALSE || eglGetError() != EGL_SUCCESS)
{
printf("eglInitialize Error!\r\n");
return;
}
eglChooseConfig(display, config_list, &config, 1, &num_config);
eglBindAPI(EGL_OPENGL_ES_API);
surface = eglCreateWindowSurface( display, config, (NativeWindowType)(gHWND) , NULL);
if ( surface == EGL_NO_SURFACE || eglGetError() != EGL_SUCCESS )
{
printf("eglCreateWindowSurface Error!\r\n");
return ;
}
context = eglCreateContext( display, config, NULL, NULL );
if ( context == EGL_NO_CONTEXT || eglGetError() != EGL_SUCCESS )
{
printf("eglCreateContext Error!\r\n");
return ;
}
if ( eglMakeCurrent( display, surface, surface, context ) == EGL_FALSE || eglGetError() != EGL_SUCCESS )
{
printf("eglMakeCurrent Error!\r\n");
return;
}
配置改成
EGLint config_list[] = {
EGL_NONE
};
也不行