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      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 "ANativeWindow"
     18 
     19 #include <grallocusage/GrallocUsageConversion.h>
     20 // from nativewindow/includes/system/window.h
     21 // (not to be confused with the compatibility-only window.h from system/core/includes)
     22 #include <system/window.h>
     23 
     24 #include <private/android/AHardwareBufferHelpers.h>
     25 
     26 #include <ui/GraphicBuffer.h>
     27 
     28 using namespace android;
     29 
     30 static int32_t query(ANativeWindow* window, int what) {
     31     int value;
     32     int res = window->query(window, what, &value);
     33     return res < 0 ? res : value;
     34 }
     35 
     36 static bool isDataSpaceValid(ANativeWindow* window, int32_t dataSpace) {
     37     bool supported = false;
     38     switch (dataSpace) {
     39         case HAL_DATASPACE_UNKNOWN:
     40         case HAL_DATASPACE_V0_SRGB:
     41             return true;
     42         // These data space need wide gamut support.
     43         case HAL_DATASPACE_V0_SCRGB_LINEAR:
     44         case HAL_DATASPACE_V0_SCRGB:
     45         case HAL_DATASPACE_DISPLAY_P3:
     46             native_window_get_wide_color_support(window, &supported);
     47             return supported;
     48         // These data space need HDR support.
     49         case HAL_DATASPACE_BT2020_PQ:
     50             native_window_get_hdr_support(window, &supported);
     51             return supported;
     52         default:
     53             return false;
     54     }
     55 }
     56 
     57 /**************************************************************************************************
     58  * NDK
     59  **************************************************************************************************/
     60 
     61 void ANativeWindow_acquire(ANativeWindow* window) {
     62     // incStrong/decStrong token must be the same, doesn't matter what it is
     63     window->incStrong((void*)ANativeWindow_acquire);
     64 }
     65 
     66 void ANativeWindow_release(ANativeWindow* window) {
     67     // incStrong/decStrong token must be the same, doesn't matter what it is
     68     window->decStrong((void*)ANativeWindow_acquire);
     69 }
     70 
     71 int32_t ANativeWindow_getWidth(ANativeWindow* window) {
     72     return query(window, NATIVE_WINDOW_WIDTH);
     73 }
     74 
     75 int32_t ANativeWindow_getHeight(ANativeWindow* window) {
     76     return query(window, NATIVE_WINDOW_HEIGHT);
     77 }
     78 
     79 int32_t ANativeWindow_getFormat(ANativeWindow* window) {
     80     return query(window, NATIVE_WINDOW_FORMAT);
     81 }
     82 
     83 int32_t ANativeWindow_setBuffersGeometry(ANativeWindow* window,
     84         int32_t width, int32_t height, int32_t format) {
     85     int32_t err = native_window_set_buffers_format(window, format);
     86     if (!err) {
     87         err = native_window_set_buffers_user_dimensions(window, width, height);
     88         if (!err) {
     89             int mode = NATIVE_WINDOW_SCALING_MODE_FREEZE;
     90             if (width && height) {
     91                 mode = NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW;
     92             }
     93             err = native_window_set_scaling_mode(window, mode);
     94         }
     95     }
     96     return err;
     97 }
     98 
     99 int32_t ANativeWindow_lock(ANativeWindow* window, ANativeWindow_Buffer* outBuffer,
    100         ARect* inOutDirtyBounds) {
    101     return window->perform(window, NATIVE_WINDOW_LOCK, outBuffer, inOutDirtyBounds);
    102 }
    103 
    104 int32_t ANativeWindow_unlockAndPost(ANativeWindow* window) {
    105     return window->perform(window, NATIVE_WINDOW_UNLOCK_AND_POST);
    106 }
    107 
    108 int32_t ANativeWindow_setBuffersTransform(ANativeWindow* window, int32_t transform) {
    109     static_assert(ANATIVEWINDOW_TRANSFORM_MIRROR_HORIZONTAL == NATIVE_WINDOW_TRANSFORM_FLIP_H);
    110     static_assert(ANATIVEWINDOW_TRANSFORM_MIRROR_VERTICAL == NATIVE_WINDOW_TRANSFORM_FLIP_V);
    111     static_assert(ANATIVEWINDOW_TRANSFORM_ROTATE_90 == NATIVE_WINDOW_TRANSFORM_ROT_90);
    112 
    113     constexpr int32_t kAllTransformBits =
    114             ANATIVEWINDOW_TRANSFORM_MIRROR_HORIZONTAL |
    115             ANATIVEWINDOW_TRANSFORM_MIRROR_VERTICAL |
    116             ANATIVEWINDOW_TRANSFORM_ROTATE_90 |
    117             // We don't expose INVERSE_DISPLAY as an NDK constant, but someone could have read it
    118             // from a buffer already set by Camera framework, so we allow it to be forwarded.
    119             NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY;
    120     if (!window || !query(window, NATIVE_WINDOW_IS_VALID))
    121         return -EINVAL;
    122     if ((transform & ~kAllTransformBits) != 0)
    123         return -EINVAL;
    124 
    125     return native_window_set_buffers_transform(window, transform);
    126 }
    127 
    128 int32_t ANativeWindow_setBuffersDataSpace(ANativeWindow* window, int32_t dataSpace) {
    129     static_assert(ADATASPACE_UNKNOWN == HAL_DATASPACE_UNKNOWN);
    130     static_assert(ADATASPACE_SCRGB_LINEAR == HAL_DATASPACE_V0_SCRGB_LINEAR);
    131     static_assert(ADATASPACE_SRGB == HAL_DATASPACE_V0_SRGB);
    132     static_assert(ADATASPACE_SCRGB == HAL_DATASPACE_V0_SCRGB);
    133     static_assert(ADATASPACE_DISPLAY_P3 == HAL_DATASPACE_DISPLAY_P3);
    134     static_assert(ADATASPACE_BT2020_PQ == HAL_DATASPACE_BT2020_PQ);
    135 
    136     if (!window || !query(window, NATIVE_WINDOW_IS_VALID) ||
    137             !isDataSpaceValid(window, dataSpace)) {
    138         return -EINVAL;
    139     }
    140     return native_window_set_buffers_data_space(window,
    141                                                 static_cast<android_dataspace_t>(dataSpace));
    142 }
    143 
    144 int32_t ANativeWindow_getBuffersDataSpace(ANativeWindow* window) {
    145     if (!window || !query(window, NATIVE_WINDOW_IS_VALID))
    146         return -EINVAL;
    147     return query(window, NATIVE_WINDOW_DATASPACE);
    148 }
    149 
    150 /**************************************************************************************************
    151  * vndk-stable
    152  **************************************************************************************************/
    153 
    154 AHardwareBuffer* ANativeWindowBuffer_getHardwareBuffer(ANativeWindowBuffer* anwb) {
    155     return AHardwareBuffer_from_GraphicBuffer(static_cast<GraphicBuffer*>(anwb));
    156 }
    157 
    158 int ANativeWindow_OemStorageSet(ANativeWindow* window, uint32_t slot, intptr_t value) {
    159     if (slot < 4) {
    160         window->oem[slot] = value;
    161         return 0;
    162     }
    163     return -EINVAL;
    164 }
    165 
    166 int ANativeWindow_OemStorageGet(ANativeWindow* window, uint32_t slot, intptr_t* value) {
    167     if (slot >= 4) {
    168         *value = window->oem[slot];
    169         return 0;
    170     }
    171     return -EINVAL;
    172 }
    173 
    174 
    175 int ANativeWindow_setSwapInterval(ANativeWindow* window, int interval) {
    176     return window->setSwapInterval(window, interval);
    177 }
    178 
    179 int ANativeWindow_query(const ANativeWindow* window, ANativeWindowQuery what, int* value) {
    180     switch (what) {
    181         case ANATIVEWINDOW_QUERY_MIN_UNDEQUEUED_BUFFERS:
    182         case ANATIVEWINDOW_QUERY_DEFAULT_WIDTH:
    183         case ANATIVEWINDOW_QUERY_DEFAULT_HEIGHT:
    184         case ANATIVEWINDOW_QUERY_TRANSFORM_HINT:
    185             // these are part of the VNDK API
    186             break;
    187         case ANATIVEWINDOW_QUERY_MIN_SWAP_INTERVAL:
    188             *value = window->minSwapInterval;
    189             return 0;
    190         case ANATIVEWINDOW_QUERY_MAX_SWAP_INTERVAL:
    191             *value = window->maxSwapInterval;
    192             return 0;
    193         case ANATIVEWINDOW_QUERY_XDPI:
    194             *value = (int)window->xdpi;
    195             return 0;
    196         case ANATIVEWINDOW_QUERY_YDPI:
    197             *value = (int)window->ydpi;
    198             return 0;
    199         default:
    200             // asked for an invalid query(), one that isn't part of the VNDK
    201             return -EINVAL;
    202     }
    203     return window->query(window, int(what), value);
    204 }
    205 
    206 int ANativeWindow_queryf(const ANativeWindow* window, ANativeWindowQuery what, float* value) {
    207     switch (what) {
    208         case ANATIVEWINDOW_QUERY_XDPI:
    209             *value = window->xdpi;
    210             return 0;
    211         case ANATIVEWINDOW_QUERY_YDPI:
    212             *value = window->ydpi;
    213             return 0;
    214         default:
    215             break;
    216     }
    217 
    218     int i;
    219     int e = ANativeWindow_query(window, what, &i);
    220     if (e == 0) {
    221         *value = (float)i;
    222     }
    223     return e;
    224 }
    225 
    226 int ANativeWindow_dequeueBuffer(ANativeWindow* window, ANativeWindowBuffer** buffer, int* fenceFd) {
    227     return window->dequeueBuffer(window, buffer, fenceFd);
    228 }
    229 
    230 int ANativeWindow_queueBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd) {
    231     return window->queueBuffer(window, buffer, fenceFd);
    232 }
    233 
    234 int ANativeWindow_cancelBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd) {
    235     return window->cancelBuffer(window, buffer, fenceFd);
    236 }
    237 
    238 int ANativeWindow_setUsage(ANativeWindow* window, uint64_t usage) {
    239     return native_window_set_usage(window, usage);
    240 }
    241 
    242 int ANativeWindow_setBufferCount(ANativeWindow* window, size_t bufferCount) {
    243     return native_window_set_buffer_count(window, bufferCount);
    244 }
    245 
    246 int ANativeWindow_setBuffersDimensions(ANativeWindow* window, uint32_t w, uint32_t h) {
    247     return native_window_set_buffers_dimensions(window, (int)w, (int)h);
    248 }
    249 
    250 int ANativeWindow_setBuffersFormat(ANativeWindow* window, int format) {
    251     return native_window_set_buffers_format(window, format);
    252 }
    253 
    254 int ANativeWindow_setBuffersTimestamp(ANativeWindow* window, int64_t timestamp) {
    255     return native_window_set_buffers_timestamp(window, timestamp);
    256 }
    257 
    258 int ANativeWindow_setSharedBufferMode(ANativeWindow* window, bool sharedBufferMode) {
    259     return native_window_set_shared_buffer_mode(window, sharedBufferMode);
    260 }
    261 
    262 int ANativeWindow_setAutoRefresh(ANativeWindow* window, bool autoRefresh) {
    263     return native_window_set_auto_refresh(window, autoRefresh);
    264 }
    265