// Copyright 2022 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "dawn/native/opengl/UtilsEGL.h"

#include <string>

#include "dawn/native/opengl/EGLFunctions.h"

namespace dawn::native::opengl {

const char* EGLErrorAsString(EGLint error) {
    switch (error) {
        case EGL_SUCCESS:
            return "EGL_SUCCESS";
        case EGL_NOT_INITIALIZED:
            return "EGL_NOT_INITIALIZED";
        case EGL_BAD_ACCESS:
            return "EGL_BAD_ACCESS";
        case EGL_BAD_ALLOC:
            return "EGL_BAD_ALLOC";
        case EGL_BAD_ATTRIBUTE:
            return "EGL_BAD_ATTRIBUTE";
        case EGL_BAD_CONTEXT:
            return "EGL_BAD_CONTEXT";
        case EGL_BAD_CONFIG:
            return "EGL_BAD_CONFIG";
        case EGL_BAD_CURRENT_SURFACE:
            return "EGL_BAD_CURRENT_SURFACE";
        case EGL_BAD_DISPLAY:
            return "EGL_BAD_DISPLAY";
        case EGL_BAD_SURFACE:
            return "EGL_BAD_SURFACE";
        case EGL_BAD_MATCH:
            return "EGL_BAD_MATCH";
        case EGL_BAD_PARAMETER:
            return "EGL_BAD_PARAMETER";
        case EGL_BAD_NATIVE_PIXMAP:
            return "EGL_BAD_NATIVE_PIXMAP";
        case EGL_BAD_NATIVE_WINDOW:
            return "EGL_BAD_NATIVE_WINDOW";
        case EGL_CONTEXT_LOST:
            return "EGL_CONTEXT_LOST";
        default:
            return "<Unknown EGL error>";
    }
}

MaybeError CheckEGL(const EGLFunctions& egl, EGLBoolean result, const char* context) {
    if (DAWN_LIKELY(result == EGL_TRUE)) {
        return {};
    }
    EGLint error = egl.GetError();
    std::string message = std::string(context) + " failed with " + EGLErrorAsString(error);
    if (error == EGL_BAD_ALLOC) {
        return DAWN_OUT_OF_MEMORY_ERROR(message);
    } else if (error == EGL_CONTEXT_LOST) {
        return DAWN_DEVICE_LOST_ERROR(message);
    } else {
        return DAWN_INTERNAL_ERROR(message);
    }
}

}  // namespace dawn::native::opengl