native_window.cpp revision 050316184b01c0d1a01c46afae7429b89a27c31b
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_ParcelSurfaceTexture.h> 24#include <android_runtime/android_graphics_SurfaceTexture.h> 25 26using namespace android; 27 28ANativeWindow* ANativeWindow_fromSurface(JNIEnv* env, jobject surface) { 29 sp<ANativeWindow> win; 30 if (android_Surface_isInstanceOf(env, surface)) { 31 win = android_Surface_getNativeWindow(env, surface); 32 } else if (android_SurfaceTexture_isInstanceOf(env, surface)) { 33 win = android_SurfaceTexture_getNativeWindow(env, surface); 34 } else if (android_ParcelSurfaceTexture_isInstanceOf(env, surface)) { 35 win = android_ParcelSurfaceTexture_getNativeWindow(env, surface); 36 } 37 if (win != NULL) { 38 win->incStrong((void*)ANativeWindow_acquire); 39 } 40 return win.get(); 41} 42 43ANativeWindow* ANativeWindow_fromSurfaceTexture(JNIEnv* env, jobject surfaceTexture) { 44 sp<ANativeWindow> win = android_SurfaceTexture_getNativeWindow(env, surfaceTexture); 45 if (win != NULL) { 46 win->incStrong((void*)ANativeWindow_acquire); 47 } 48 return win.get(); 49} 50 51void ANativeWindow_acquire(ANativeWindow* window) { 52 window->incStrong((void*)ANativeWindow_acquire); 53} 54 55void ANativeWindow_release(ANativeWindow* window) { 56 window->decStrong((void*)ANativeWindow_acquire); 57} 58 59static int32_t getWindowProp(ANativeWindow* window, int what) { 60 int value; 61 int res = window->query(window, what, &value); 62 return res < 0 ? res : value; 63} 64 65int32_t ANativeWindow_getWidth(ANativeWindow* window) { 66 return getWindowProp(window, NATIVE_WINDOW_WIDTH); 67} 68 69int32_t ANativeWindow_getHeight(ANativeWindow* window) { 70 return getWindowProp(window, NATIVE_WINDOW_HEIGHT); 71} 72 73int32_t ANativeWindow_getFormat(ANativeWindow* window) { 74 return getWindowProp(window, NATIVE_WINDOW_FORMAT); 75} 76 77int32_t ANativeWindow_setBuffersGeometry(ANativeWindow* window, int32_t width, 78 int32_t height, int32_t format) { 79 return native_window_set_buffers_geometry(window, width, height, format); 80} 81 82int32_t ANativeWindow_lock(ANativeWindow* window, ANativeWindow_Buffer* outBuffer, 83 ARect* inOutDirtyBounds) { 84 int type = -1; 85 if (window->query(window, NATIVE_WINDOW_CONCRETE_TYPE, &type) != 0 || 86 type != NATIVE_WINDOW_SURFACE) { 87 return BAD_VALUE; 88 } 89 90 Region dirtyRegion; 91 Region* dirtyParam = NULL; 92 if (inOutDirtyBounds != NULL) { 93 dirtyRegion.set(*(Rect*)inOutDirtyBounds); 94 dirtyParam = &dirtyRegion; 95 } 96 97 Surface::SurfaceInfo info; 98 status_t res = static_cast<Surface*>(window)->lock(&info, dirtyParam); 99 if (res != OK) { 100 return -1; 101 } 102 103 outBuffer->width = (int32_t)info.w; 104 outBuffer->height = (int32_t)info.h; 105 outBuffer->stride = (int32_t)info.s; 106 outBuffer->format = (int32_t)info.format; 107 outBuffer->bits = info.bits; 108 109 if (inOutDirtyBounds != NULL) { 110 *inOutDirtyBounds = dirtyRegion.getBounds(); 111 } 112 113 return 0; 114} 115 116int32_t ANativeWindow_unlockAndPost(ANativeWindow* window) { 117 status_t res = static_cast<Surface*>(window)->unlockAndPost(); 118 return res == android::OK ? 0 : -1; 119} 120