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 <gui/Surface.h>
22 #include <android_runtime/android_view_Surface.h>
23 #include <android_runtime/android_graphics_SurfaceTexture.h>
24
25 using namespace android;
26
ANativeWindow_fromSurface(JNIEnv * env,jobject surface)27 ANativeWindow* ANativeWindow_fromSurface(JNIEnv* env, jobject surface) {
28 sp<ANativeWindow> win = android_view_Surface_getNativeWindow(env, surface);
29 if (win != NULL) {
30 win->incStrong((void*)ANativeWindow_acquire);
31 }
32 return win.get();
33 }
34
ANativeWindow_acquire(ANativeWindow * window)35 void ANativeWindow_acquire(ANativeWindow* window) {
36 window->incStrong((void*)ANativeWindow_acquire);
37 }
38
ANativeWindow_release(ANativeWindow * window)39 void ANativeWindow_release(ANativeWindow* window) {
40 window->decStrong((void*)ANativeWindow_acquire);
41 }
42
getWindowProp(ANativeWindow * window,int what)43 static int32_t getWindowProp(ANativeWindow* window, int what) {
44 int value;
45 int res = window->query(window, what, &value);
46 return res < 0 ? res : value;
47 }
48
ANativeWindow_getWidth(ANativeWindow * window)49 int32_t ANativeWindow_getWidth(ANativeWindow* window) {
50 return getWindowProp(window, NATIVE_WINDOW_WIDTH);
51 }
52
ANativeWindow_getHeight(ANativeWindow * window)53 int32_t ANativeWindow_getHeight(ANativeWindow* window) {
54 return getWindowProp(window, NATIVE_WINDOW_HEIGHT);
55 }
56
ANativeWindow_getFormat(ANativeWindow * window)57 int32_t ANativeWindow_getFormat(ANativeWindow* window) {
58 return getWindowProp(window, NATIVE_WINDOW_FORMAT);
59 }
60
ANativeWindow_setBuffersGeometry(ANativeWindow * window,int32_t width,int32_t height,int32_t format)61 int32_t ANativeWindow_setBuffersGeometry(ANativeWindow* window, int32_t width,
62 int32_t height, int32_t format) {
63 int32_t err = native_window_set_buffers_format(window, format);
64 if (!err) {
65 err = native_window_set_buffers_user_dimensions(window, width, height);
66 if (!err) {
67 int mode = NATIVE_WINDOW_SCALING_MODE_FREEZE;
68 if (width && height) {
69 mode = NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW;
70 }
71 err = native_window_set_scaling_mode(window, mode);
72 }
73 }
74 return err;
75 }
76
ANativeWindow_lock(ANativeWindow * window,ANativeWindow_Buffer * outBuffer,ARect * inOutDirtyBounds)77 int32_t ANativeWindow_lock(ANativeWindow* window, ANativeWindow_Buffer* outBuffer,
78 ARect* inOutDirtyBounds) {
79 return window->perform(window, NATIVE_WINDOW_LOCK, outBuffer, inOutDirtyBounds);
80 }
81
ANativeWindow_unlockAndPost(ANativeWindow * window)82 int32_t ANativeWindow_unlockAndPost(ANativeWindow* window) {
83 return window->perform(window, NATIVE_WINDOW_UNLOCK_AND_POST);
84 }
85