static void makeContextCurrentEGL(_GLFWwindow* window)
{
if (window)
{
if (!eglMakeCurrent(_glfw.egl.display,
window->context.egl.surface,
window->context.egl.surface,
window->context.egl.handle))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGL: Failed to make context current: %s",
getEGLErrorString(eglGetError()));
return;
}
}
else
{
if (!eglMakeCurrent(_glfw.egl.display,
EGL_NO_SURFACE,
EGL_NO_SURFACE,
EGL_NO_CONTEXT))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGL: Failed to clear current context: %s",
getEGLErrorString(eglGetError()));
return;
}
}
_glfwPlatformSetCurrentContext(window);
}
static void logEGLError(const char *msg)
{
EGLint error = eglGetError();
const char *errorStr = getEGLErrorString(error);
ERROR( "%s: %s (%x)", msg, errorStr, error );
}
// Create the OpenGL or OpenGL ES context
//
GLFWbool _glfwCreateContextEGL(_GLFWwindow* window,
const _GLFWctxconfig* ctxconfig,
const _GLFWfbconfig* fbconfig)
{
EGLint attribs[40];
EGLConfig config;
EGLContext share = NULL;
if (!_glfw.egl.display)
{
_glfwInputError(GLFW_API_UNAVAILABLE, "EGL: API not available");
return GLFW_FALSE;
}
if (ctxconfig->share)
share = ctxconfig->share->context.egl.handle;
if (!chooseEGLConfig(ctxconfig, fbconfig, &config))
{
_glfwInputError(GLFW_FORMAT_UNAVAILABLE,
"EGL: Failed to find a suitable EGLConfig");
return GLFW_FALSE;
}
if (ctxconfig->client == GLFW_OPENGL_ES_API)
{
if (!eglBindAPI(EGL_OPENGL_ES_API))
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"EGL: Failed to bind OpenGL ES: %s",
getEGLErrorString(eglGetError()));
return GLFW_FALSE;
}
}
else
{
if (!eglBindAPI(EGL_OPENGL_API))
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"EGL: Failed to bind OpenGL: %s",
getEGLErrorString(eglGetError()));
return GLFW_FALSE;
}
}
if (_glfw.egl.KHR_create_context)
{
int index = 0, mask = 0, flags = 0;
if (ctxconfig->client == GLFW_OPENGL_API)
{
if (ctxconfig->forward)
flags |= EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR;
if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
mask |= EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
mask |= EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR;
if (_glfw.egl.KHR_create_context_no_error)
{
if (ctxconfig->noerror)
flags |= EGL_CONTEXT_OPENGL_NO_ERROR_KHR;
}
}
if (ctxconfig->debug)
flags |= EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
if (ctxconfig->robustness)
{
if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION)
{
setEGLattrib(EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR,
EGL_NO_RESET_NOTIFICATION_KHR);
}
else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
{
setEGLattrib(EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR,
EGL_LOSE_CONTEXT_ON_RESET_KHR);
}
flags |= EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR;
}
if (ctxconfig->major != 1 || ctxconfig->minor != 0)
{
setEGLattrib(EGL_CONTEXT_MAJOR_VERSION_KHR, ctxconfig->major);
setEGLattrib(EGL_CONTEXT_MINOR_VERSION_KHR, ctxconfig->minor);
}
if (mask)
setEGLattrib(EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, mask);
if (flags)
setEGLattrib(EGL_CONTEXT_FLAGS_KHR, flags);
setEGLattrib(EGL_NONE, EGL_NONE);
}
else
{
int index = 0;
if (ctxconfig->client == GLFW_OPENGL_ES_API)
setEGLattrib(EGL_CONTEXT_CLIENT_VERSION, ctxconfig->major);
setEGLattrib(EGL_NONE, EGL_NONE);
}
// Context release behaviors (GL_KHR_context_flush_control) are not yet
// supported on EGL but are not a hard constraint, so ignore and continue
window->context.egl.handle = eglCreateContext(_glfw.egl.display,
config, share, attribs);
if (window->context.egl.handle == EGL_NO_CONTEXT)
{
_glfwInputError(GLFW_VERSION_UNAVAILABLE,
"EGL: Failed to create context: %s",
getEGLErrorString(eglGetError()));
return GLFW_FALSE;
}
// Set up attributes for surface creation
{
int index = 0;
if (fbconfig->sRGB)
{
if (_glfw.egl.KHR_gl_colorspace)
{
setEGLattrib(EGL_GL_COLORSPACE_KHR, EGL_GL_COLORSPACE_SRGB_KHR);
}
}
setEGLattrib(EGL_NONE, EGL_NONE);
}
window->context.egl.surface =
eglCreateWindowSurface(_glfw.egl.display,
config,
_GLFW_EGL_NATIVE_WINDOW,
attribs);
if (window->context.egl.surface == EGL_NO_SURFACE)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"EGL: Failed to create window surface: %s",
getEGLErrorString(eglGetError()));
return GLFW_FALSE;
}
window->context.egl.config = config;
// Load the appropriate client library
{
int i;
const char** sonames;
const char* es1sonames[] =
{
#if defined(_GLFW_WIN32)
"GLESv1_CM.dll",
"libGLES_CM.dll",
#elif defined(_GLFW_COCOA)
"libGLESv1_CM.dylib",
#else
"libGLESv1_CM.so.1",
"libGLES_CM.so.1",
#endif
NULL
};
const char* es2sonames[] =
{
#if defined(_GLFW_WIN32)
"GLESv2.dll",
"libGLESv2.dll",
#elif defined(_GLFW_COCOA)
"libGLESv2.dylib",
#else
"libGLESv2.so.2",
#endif
NULL
};
const char* glsonames[] =
{
#if defined(_GLFW_WIN32)
#elif defined(_GLFW_COCOA)
#else
"libGL.so.1",
#endif
NULL
};
if (ctxconfig->client == GLFW_OPENGL_ES_API)
{
if (ctxconfig->major == 1)
sonames = es1sonames;
else
sonames = es2sonames;
}
else
sonames = glsonames;
for (i = 0; sonames[i]; i++)
{
window->context.egl.client = _glfw_dlopen(sonames[i]);
if (window->context.egl.client)
break;
}
if (!window->context.egl.client)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"EGL: Failed to load client library");
return GLFW_FALSE;
}
}
window->context.makeCurrent = makeContextCurrentEGL;
window->context.swapBuffers = swapBuffersEGL;
window->context.swapInterval = swapIntervalEGL;
window->context.extensionSupported = extensionSupportedEGL;
window->context.getProcAddress = getProcAddressEGL;
window->context.destroy = destroyContextEGL;
return GLFW_TRUE;
}
// Initialize EGL
//
GLFWbool _glfwInitEGL(void)
{
int i;
const char* sonames[] =
{
#if defined(_GLFW_WIN32)
"libEGL.dll",
"EGL.dll",
#elif defined(_GLFW_COCOA)
"libEGL.dylib",
#else
"libEGL.so.1",
#endif
NULL
};
for (i = 0; sonames[i]; i++)
{
_glfw.egl.handle = _glfw_dlopen(sonames[i]);
if (_glfw.egl.handle)
break;
}
if (!_glfw.egl.handle)
return GLFW_FALSE;
_glfw.egl.GetConfigAttrib = (PFNEGLGETCONFIGATTRIBPROC)
_glfw_dlsym(_glfw.egl.handle, "eglGetConfigAttrib");
_glfw.egl.GetConfigs = (PFNEGLGETCONFIGSPROC)
_glfw_dlsym(_glfw.egl.handle, "eglGetConfigs");
_glfw.egl.GetDisplay = (PFNEGLGETDISPLAYPROC)
_glfw_dlsym(_glfw.egl.handle, "eglGetDisplay");
_glfw.egl.GetError = (PFNEGLGETERRORPROC)
_glfw_dlsym(_glfw.egl.handle, "eglGetError");
_glfw.egl.Initialize = (PFNEGLINITIALIZEPROC)
_glfw_dlsym(_glfw.egl.handle, "eglInitialize");
_glfw.egl.Terminate = (PFNEGLTERMINATEPROC)
_glfw_dlsym(_glfw.egl.handle, "eglTerminate");
_glfw.egl.BindAPI = (PFNEGLBINDAPIPROC)
_glfw_dlsym(_glfw.egl.handle, "eglBindAPI");
_glfw.egl.CreateContext = (PFNEGLCREATECONTEXTPROC)
_glfw_dlsym(_glfw.egl.handle, "eglCreateContext");
_glfw.egl.DestroySurface = (PFNEGLDESTROYSURFACEPROC)
_glfw_dlsym(_glfw.egl.handle, "eglDestroySurface");
_glfw.egl.DestroyContext = (PFNEGLDESTROYCONTEXTPROC)
_glfw_dlsym(_glfw.egl.handle, "eglDestroyContext");
_glfw.egl.CreateWindowSurface = (PFNEGLCREATEWINDOWSURFACEPROC)
_glfw_dlsym(_glfw.egl.handle, "eglCreateWindowSurface");
_glfw.egl.MakeCurrent = (PFNEGLMAKECURRENTPROC)
_glfw_dlsym(_glfw.egl.handle, "eglMakeCurrent");
_glfw.egl.SwapBuffers = (PFNEGLSWAPBUFFERSPROC)
_glfw_dlsym(_glfw.egl.handle, "eglSwapBuffers");
_glfw.egl.SwapInterval = (PFNEGLSWAPINTERVALPROC)
_glfw_dlsym(_glfw.egl.handle, "eglSwapInterval");
_glfw.egl.QueryString = (PFNEGLQUERYSTRINGPROC)
_glfw_dlsym(_glfw.egl.handle, "eglQueryString");
_glfw.egl.GetProcAddress = (PFNEGLGETPROCADDRESSPROC)
_glfw_dlsym(_glfw.egl.handle, "eglGetProcAddress");
_glfw.egl.display = eglGetDisplay(_GLFW_EGL_NATIVE_DISPLAY);
if (_glfw.egl.display == EGL_NO_DISPLAY)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"EGL: Failed to get EGL display: %s",
getEGLErrorString(eglGetError()));
_glfwTerminateEGL();
return GLFW_FALSE;
}
if (!eglInitialize(_glfw.egl.display, &_glfw.egl.major, &_glfw.egl.minor))
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"EGL: Failed to initialize EGL: %s",
getEGLErrorString(eglGetError()));
_glfwTerminateEGL();
return GLFW_FALSE;
}
_glfw.egl.KHR_create_context =
extensionSupportedEGL("EGL_KHR_create_context");
_glfw.egl.KHR_create_context_no_error =
extensionSupportedEGL("EGL_KHR_create_context_no_error");
_glfw.egl.KHR_gl_colorspace =
extensionSupportedEGL("EGL_KHR_gl_colorspace");
return GLFW_TRUE;
}