| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| |
| #ifndef ANDROID_UI_EGLUTILS_H |
| #define ANDROID_UI_EGLUTILS_H |
| |
| #include <stdint.h> |
| #include <stdlib.h> |
| |
| #include <system/window.h> |
| #include <utils/Errors.h> |
| #include <EGL/egl.h> |
| |
| |
| // ---------------------------------------------------------------------------- |
| namespace android { |
| // ---------------------------------------------------------------------------- |
| |
| class EGLUtils |
| { |
| public: |
| |
| static inline const char *strerror(EGLint err); |
| |
| static inline status_t selectConfigForPixelFormat( |
| EGLDisplay dpy, |
| EGLint const* attrs, |
| int32_t format, |
| EGLConfig* outConfig); |
| |
| static inline status_t selectConfigForNativeWindow( |
| EGLDisplay dpy, |
| EGLint const* attrs, |
| EGLNativeWindowType window, |
| EGLConfig* outConfig); |
| }; |
| |
| // ---------------------------------------------------------------------------- |
| |
| const char *EGLUtils::strerror(EGLint err) |
| { |
| switch (err){ |
| 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_CONFIG: return "EGL_BAD_CONFIG"; |
| case EGL_BAD_CONTEXT: return "EGL_BAD_CONTEXT"; |
| case EGL_BAD_CURRENT_SURFACE: return "EGL_BAD_CURRENT_SURFACE"; |
| case EGL_BAD_DISPLAY: return "EGL_BAD_DISPLAY"; |
| case EGL_BAD_MATCH: return "EGL_BAD_MATCH"; |
| case EGL_BAD_NATIVE_PIXMAP: return "EGL_BAD_NATIVE_PIXMAP"; |
| case EGL_BAD_NATIVE_WINDOW: return "EGL_BAD_NATIVE_WINDOW"; |
| case EGL_BAD_PARAMETER: return "EGL_BAD_PARAMETER"; |
| case EGL_BAD_SURFACE: return "EGL_BAD_SURFACE"; |
| case EGL_CONTEXT_LOST: return "EGL_CONTEXT_LOST"; |
| default: return "UNKNOWN"; |
| } |
| } |
| |
| status_t EGLUtils::selectConfigForPixelFormat( |
| EGLDisplay dpy, |
| EGLint const* attrs, |
| int32_t format, |
| EGLConfig* outConfig) |
| { |
| EGLint numConfigs = -1, n=0; |
| |
| if (!attrs) |
| return BAD_VALUE; |
| |
| if (outConfig == NULL) |
| return BAD_VALUE; |
| |
| // Get all the "potential match" configs... |
| if (eglGetConfigs(dpy, NULL, 0, &numConfigs) == EGL_FALSE) |
| return BAD_VALUE; |
| |
| EGLConfig* const configs = (EGLConfig*)malloc(sizeof(EGLConfig)*numConfigs); |
| if (eglChooseConfig(dpy, attrs, configs, numConfigs, &n) == EGL_FALSE) { |
| free(configs); |
| return BAD_VALUE; |
| } |
| |
| int i; |
| EGLConfig config = NULL; |
| for (i=0 ; i<n ; i++) { |
| EGLint nativeVisualId = 0; |
| eglGetConfigAttrib(dpy, configs[i], EGL_NATIVE_VISUAL_ID, &nativeVisualId); |
| if (nativeVisualId>0 && format == nativeVisualId) { |
| config = configs[i]; |
| break; |
| } |
| } |
| |
| free(configs); |
| |
| if (i<n) { |
| *outConfig = config; |
| return NO_ERROR; |
| } |
| |
| return NAME_NOT_FOUND; |
| } |
| |
| status_t EGLUtils::selectConfigForNativeWindow( |
| EGLDisplay dpy, |
| EGLint const* attrs, |
| EGLNativeWindowType window, |
| EGLConfig* outConfig) |
| { |
| int err; |
| int format; |
| |
| if (!window) |
| return BAD_VALUE; |
| |
| if ((err = window->query(window, NATIVE_WINDOW_FORMAT, &format)) < 0) { |
| return err; |
| } |
| |
| return selectConfigForPixelFormat(dpy, attrs, format, outConfig); |
| } |
| |
| // ---------------------------------------------------------------------------- |
| }; // namespace android |
| // ---------------------------------------------------------------------------- |
| |
| #endif /* ANDROID_UI_EGLUTILS_H */ |