/* * 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. */ #define LOG_TAG "EGLUtils" #include <cutils/log.h> #include <utils/Errors.h> #include <ui/EGLUtils.h> #include <EGL/egl.h> #include <private/ui/android_natives_priv.h> // ---------------------------------------------------------------------------- namespace android { // ---------------------------------------------------------------------------- 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, PixelFormat format, EGLConfig* outConfig) { EGLint numConfigs = -1, n=0; if (!attrs) return BAD_VALUE; if (outConfig == NULL) return BAD_VALUE; int err; PixelFormatInfo fbFormatInfo; if ((err = getPixelFormatInfo(PixelFormat(format), &fbFormatInfo)) < 0) { return err; } // 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; } const int fbSzA = fbFormatInfo.getSize(PixelFormatInfo::INDEX_ALPHA); const int fbSzR = fbFormatInfo.getSize(PixelFormatInfo::INDEX_RED); const int fbSzG = fbFormatInfo.getSize(PixelFormatInfo::INDEX_GREEN); const int fbSzB = fbFormatInfo.getSize(PixelFormatInfo::INDEX_BLUE); int i; EGLConfig config = NULL; for (i=0 ; i<n ; i++) { EGLint r,g,b,a; EGLConfig curr = configs[i]; eglGetConfigAttrib(dpy, curr, EGL_RED_SIZE, &r); eglGetConfigAttrib(dpy, curr, EGL_GREEN_SIZE, &g); eglGetConfigAttrib(dpy, curr, EGL_BLUE_SIZE, &b); eglGetConfigAttrib(dpy, curr, EGL_ALPHA_SIZE, &a); if (fbSzA == a && fbSzR == r && fbSzG == g && fbSzB == b) { config = curr; 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 // ----------------------------------------------------------------------------