native_window.cpp revision da5a4440f019074e7aa61c5531c5c61755adc44d
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define LOG_TAG "Surface" 18#include <utils/Log.h> 19 20#include <android/native_window_jni.h> 21#include <surfaceflinger/Surface.h> 22#include <android_runtime/android_view_Surface.h> 23#include <android_runtime/android_graphics_SurfaceTexture.h> 24 25using namespace android; 26 27ANativeWindow* ANativeWindow_fromSurface(JNIEnv* env, jobject surface) { 28 sp<ANativeWindow> win = android_Surface_getNativeWindow(env, surface); 29 if (win != NULL) { 30 win->incStrong((void*)ANativeWindow_acquire); 31 } 32 return win.get(); 33} 34 35ANativeWindow* ANativeWindow_fromSurfaceTexture(JNIEnv* env, jobject surfaceTexture) { 36 sp<ANativeWindow> win = android_SurfaceTexture_getNativeWindow(env, surfaceTexture); 37 if (win != NULL) { 38 win->incStrong((void*)ANativeWindow_acquire); 39 } 40 return win.get(); 41} 42 43void ANativeWindow_acquire(ANativeWindow* window) { 44 window->incStrong((void*)ANativeWindow_acquire); 45} 46 47void ANativeWindow_release(ANativeWindow* window) { 48 window->decStrong((void*)ANativeWindow_acquire); 49} 50 51static int32_t getWindowProp(ANativeWindow* window, int what) { 52 int value; 53 int res = window->query(window, what, &value); 54 return res < 0 ? res : value; 55} 56 57int32_t ANativeWindow_getWidth(ANativeWindow* window) { 58 return getWindowProp(window, NATIVE_WINDOW_WIDTH); 59} 60 61int32_t ANativeWindow_getHeight(ANativeWindow* window) { 62 return getWindowProp(window, NATIVE_WINDOW_HEIGHT); 63} 64 65int32_t ANativeWindow_getFormat(ANativeWindow* window) { 66 return getWindowProp(window, NATIVE_WINDOW_FORMAT); 67} 68 69int32_t ANativeWindow_setBuffersGeometry(ANativeWindow* window, int32_t width, 70 int32_t height, int32_t format) { 71 return native_window_set_buffers_geometry(window, width, height, format); 72} 73 74int32_t ANativeWindow_lock(ANativeWindow* window, ANativeWindow_Buffer* outBuffer, 75 ARect* inOutDirtyBounds) { 76 int type = -1; 77 if (window->query(window, NATIVE_WINDOW_CONCRETE_TYPE, &type) != 0 || 78 type != NATIVE_WINDOW_SURFACE) { 79 return BAD_VALUE; 80 } 81 82 Region dirtyRegion; 83 Region* dirtyParam = NULL; 84 if (inOutDirtyBounds != NULL) { 85 dirtyRegion.set(*(Rect*)inOutDirtyBounds); 86 dirtyParam = &dirtyRegion; 87 } 88 89 Surface::SurfaceInfo info; 90 status_t res = static_cast<Surface*>(window)->lock(&info, dirtyParam); 91 if (res != OK) { 92 return -1; 93 } 94 95 outBuffer->width = (int32_t)info.w; 96 outBuffer->height = (int32_t)info.h; 97 outBuffer->stride = (int32_t)info.s; 98 outBuffer->format = (int32_t)info.format; 99 outBuffer->bits = info.bits; 100 101 if (inOutDirtyBounds != NULL) { 102 *inOutDirtyBounds = dirtyRegion.getBounds(); 103 } 104 105 return 0; 106} 107 108int32_t ANativeWindow_unlockAndPost(ANativeWindow* window) { 109 status_t res = static_cast<Surface*>(window)->unlockAndPost(); 110 return res == android::OK ? 0 : -1; 111} 112