libs/nativewindow/ANativeWindow.cpp - platform/frameworks/native - Gitiles

 /*
  * Copyright (C) 2010 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 "ANativeWindow"

 #include <grallocusage/GrallocUsageConversion.h>
 // from nativewindow/includes/system/window.h
 // (not to be confused with the compatibility-only window.h from system/core/includes)
 #include <system/window.h>

 #include <private/android/AHardwareBufferHelpers.h>

 #include <ui/GraphicBuffer.h>

 using namespace android;

 static int32_t query(ANativeWindow* window, int what) {
     int value;
     int res = window->query(window, what, &value);
     return res < 0 ? res : value;
 }

 static bool isDataSpaceValid(ANativeWindow* window, int32_t dataSpace) {
     bool supported = false;
     switch (dataSpace) {
         case HAL_DATASPACE_UNKNOWN:
         case HAL_DATASPACE_V0_SRGB:
             return true;
         // These data space need wide gamut support.
         case HAL_DATASPACE_V0_SCRGB_LINEAR:
         case HAL_DATASPACE_V0_SCRGB:
         case HAL_DATASPACE_DISPLAY_P3:
             native_window_get_wide_color_support(window, &supported);
             return supported;
         // These data space need HDR support.
         case HAL_DATASPACE_BT2020_PQ:
             native_window_get_hdr_support(window, &supported);
             return supported;
         default:
             return false;
     }
 }

 /**************************************************************************************************
  * NDK
  **************************************************************************************************/

 void ANativeWindow_acquire(ANativeWindow* window) {
     // incStrong/decStrong token must be the same, doesn't matter what it is
     window->incStrong((void*)ANativeWindow_acquire);
 }

 void ANativeWindow_release(ANativeWindow* window) {
     // incStrong/decStrong token must be the same, doesn't matter what it is
     window->decStrong((void*)ANativeWindow_acquire);
 }

 int32_t ANativeWindow_getWidth(ANativeWindow* window) {
     return query(window, NATIVE_WINDOW_WIDTH);
 }

 int32_t ANativeWindow_getHeight(ANativeWindow* window) {
     return query(window, NATIVE_WINDOW_HEIGHT);
 }

 int32_t ANativeWindow_getFormat(ANativeWindow* window) {
     return query(window, NATIVE_WINDOW_FORMAT);
 }

 int32_t ANativeWindow_setBuffersGeometry(ANativeWindow* window,
         int32_t width, int32_t height, int32_t format) {
     int32_t err = native_window_set_buffers_format(window, format);
     if (!err) {
         err = native_window_set_buffers_user_dimensions(window, width, height);
         if (!err) {
             int mode = NATIVE_WINDOW_SCALING_MODE_FREEZE;
             if (width && height) {
                 mode = NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW;
             }
             err = native_window_set_scaling_mode(window, mode);
         }
     }
     return err;
 }

 int32_t ANativeWindow_lock(ANativeWindow* window, ANativeWindow_Buffer* outBuffer,
         ARect* inOutDirtyBounds) {
     return window->perform(window, NATIVE_WINDOW_LOCK, outBuffer, inOutDirtyBounds);
 }

 int32_t ANativeWindow_unlockAndPost(ANativeWindow* window) {
     return window->perform(window, NATIVE_WINDOW_UNLOCK_AND_POST);
 }

 int32_t ANativeWindow_setBuffersTransform(ANativeWindow* window, int32_t transform) {
     static_assert(ANATIVEWINDOW_TRANSFORM_MIRROR_HORIZONTAL == NATIVE_WINDOW_TRANSFORM_FLIP_H);
     static_assert(ANATIVEWINDOW_TRANSFORM_MIRROR_VERTICAL == NATIVE_WINDOW_TRANSFORM_FLIP_V);
     static_assert(ANATIVEWINDOW_TRANSFORM_ROTATE_90 == NATIVE_WINDOW_TRANSFORM_ROT_90);

     constexpr int32_t kAllTransformBits =
             ANATIVEWINDOW_TRANSFORM_MIRROR_HORIZONTAL |
             ANATIVEWINDOW_TRANSFORM_MIRROR_VERTICAL |
             ANATIVEWINDOW_TRANSFORM_ROTATE_90 |
             // We don't expose INVERSE_DISPLAY as an NDK constant, but someone could have read it
             // from a buffer already set by Camera framework, so we allow it to be forwarded.
             NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY;
     if (!window || !query(window, NATIVE_WINDOW_IS_VALID))
         return -EINVAL;
     if ((transform & ~kAllTransformBits) != 0)
         return -EINVAL;

     return native_window_set_buffers_transform(window, transform);
 }

 int32_t ANativeWindow_setBuffersDataSpace(ANativeWindow* window, int32_t dataSpace) {
     static_assert(static_cast<int>(ADATASPACE_UNKNOWN) == static_cast<int>(HAL_DATASPACE_UNKNOWN));
     static_assert(static_cast<int>(ADATASPACE_SCRGB_LINEAR) == static_cast<int>(HAL_DATASPACE_V0_SCRGB_LINEAR));
     static_assert(static_cast<int>(ADATASPACE_SRGB) == static_cast<int>(HAL_DATASPACE_V0_SRGB));
     static_assert(static_cast<int>(ADATASPACE_SCRGB) == static_cast<int>(HAL_DATASPACE_V0_SCRGB));
     static_assert(static_cast<int>(ADATASPACE_DISPLAY_P3) == static_cast<int>(HAL_DATASPACE_DISPLAY_P3));
     static_assert(static_cast<int>(ADATASPACE_BT2020_PQ) == static_cast<int>(HAL_DATASPACE_BT2020_PQ));

     if (!window || !query(window, NATIVE_WINDOW_IS_VALID) ||
             !isDataSpaceValid(window, dataSpace)) {
         return -EINVAL;
     }
     return native_window_set_buffers_data_space(window,
                                                 static_cast<android_dataspace_t>(dataSpace));
 }

 int32_t ANativeWindow_getBuffersDataSpace(ANativeWindow* window) {
     if (!window || !query(window, NATIVE_WINDOW_IS_VALID))
         return -EINVAL;
     return query(window, NATIVE_WINDOW_DATASPACE);
 }

 /**************************************************************************************************
  * vndk-stable
  **************************************************************************************************/

 AHardwareBuffer* ANativeWindowBuffer_getHardwareBuffer(ANativeWindowBuffer* anwb) {
     return AHardwareBuffer_from_GraphicBuffer(static_cast<GraphicBuffer*>(anwb));
 }

 int ANativeWindow_OemStorageSet(ANativeWindow* window, uint32_t slot, intptr_t value) {
     if (slot < 4) {
         window->oem[slot] = value;
         return 0;
     }
     return -EINVAL;
 }

 int ANativeWindow_OemStorageGet(ANativeWindow* window, uint32_t slot, intptr_t* value) {
     if (slot >= 4) {
         *value = window->oem[slot];
         return 0;
     }
     return -EINVAL;
 }


 int ANativeWindow_setSwapInterval(ANativeWindow* window, int interval) {
     return window->setSwapInterval(window, interval);
 }

 int ANativeWindow_query(const ANativeWindow* window, ANativeWindowQuery what, int* value) {
     switch (what) {
         case ANATIVEWINDOW_QUERY_MIN_UNDEQUEUED_BUFFERS:
         case ANATIVEWINDOW_QUERY_DEFAULT_WIDTH:
         case ANATIVEWINDOW_QUERY_DEFAULT_HEIGHT:
         case ANATIVEWINDOW_QUERY_TRANSFORM_HINT:
             // these are part of the VNDK API
             break;
         case ANATIVEWINDOW_QUERY_MIN_SWAP_INTERVAL:
             *value = window->minSwapInterval;
             return 0;
         case ANATIVEWINDOW_QUERY_MAX_SWAP_INTERVAL:
             *value = window->maxSwapInterval;
             return 0;
         case ANATIVEWINDOW_QUERY_XDPI:
             *value = (int)window->xdpi;
             return 0;
         case ANATIVEWINDOW_QUERY_YDPI:
             *value = (int)window->ydpi;
             return 0;
         default:
             // asked for an invalid query(), one that isn't part of the VNDK
             return -EINVAL;
     }
     return window->query(window, int(what), value);
 }

 int ANativeWindow_queryf(const ANativeWindow* window, ANativeWindowQuery what, float* value) {
     switch (what) {
         case ANATIVEWINDOW_QUERY_XDPI:
             *value = window->xdpi;
             return 0;
         case ANATIVEWINDOW_QUERY_YDPI:
             *value = window->ydpi;
             return 0;
         default:
             break;
     }

     int i;
     int e = ANativeWindow_query(window, what, &i);
     if (e == 0) {
         *value = (float)i;
     }
     return e;
 }

 int ANativeWindow_dequeueBuffer(ANativeWindow* window, ANativeWindowBuffer** buffer, int* fenceFd) {
     return window->dequeueBuffer(window, buffer, fenceFd);
 }

 int ANativeWindow_queueBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd) {
     return window->queueBuffer(window, buffer, fenceFd);
 }

 int ANativeWindow_cancelBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd) {
     return window->cancelBuffer(window, buffer, fenceFd);
 }

 int ANativeWindow_setUsage(ANativeWindow* window, uint64_t usage) {
     return native_window_set_usage(window, usage);
 }

 int ANativeWindow_setBufferCount(ANativeWindow* window, size_t bufferCount) {
     return native_window_set_buffer_count(window, bufferCount);
 }

 int ANativeWindow_setBuffersDimensions(ANativeWindow* window, uint32_t w, uint32_t h) {
     return native_window_set_buffers_dimensions(window, (int)w, (int)h);
 }

 int ANativeWindow_setBuffersFormat(ANativeWindow* window, int format) {
     return native_window_set_buffers_format(window, format);
 }

 int ANativeWindow_setBuffersTimestamp(ANativeWindow* window, int64_t timestamp) {
     return native_window_set_buffers_timestamp(window, timestamp);
 }

 int ANativeWindow_setSharedBufferMode(ANativeWindow* window, bool sharedBufferMode) {
     return native_window_set_shared_buffer_mode(window, sharedBufferMode);
 }

 int ANativeWindow_setAutoRefresh(ANativeWindow* window, bool autoRefresh) {
     return native_window_set_auto_refresh(window, autoRefresh);
 }
	/*
	* Copyright (C) 2010 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 "ANativeWindow"

	#include <grallocusage/GrallocUsageConversion.h>
	// from nativewindow/includes/system/window.h
	// (not to be confused with the compatibility-only window.h from system/core/includes)
	#include <system/window.h>

	#include <private/android/AHardwareBufferHelpers.h>

	#include <ui/GraphicBuffer.h>

	using namespace android;

	static int32_t query(ANativeWindow* window, int what) {
	int value;
	int res = window->query(window, what, &value);
	return res < 0 ? res : value;
	}

	static bool isDataSpaceValid(ANativeWindow* window, int32_t dataSpace) {
	bool supported = false;
	switch (dataSpace) {
	case HAL_DATASPACE_UNKNOWN:
	case HAL_DATASPACE_V0_SRGB:
	return true;
	// These data space need wide gamut support.
	case HAL_DATASPACE_V0_SCRGB_LINEAR:
	case HAL_DATASPACE_V0_SCRGB:
	case HAL_DATASPACE_DISPLAY_P3:
	native_window_get_wide_color_support(window, &supported);
	return supported;
	// These data space need HDR support.
	case HAL_DATASPACE_BT2020_PQ:
	native_window_get_hdr_support(window, &supported);
	return supported;
	default:
	return false;
	}
	}

	/**************************************************************************************************
	* NDK
	**************************************************************************************************/

	void ANativeWindow_acquire(ANativeWindow* window) {
	// incStrong/decStrong token must be the same, doesn't matter what it is
	window->incStrong((void*)ANativeWindow_acquire);
	}

	void ANativeWindow_release(ANativeWindow* window) {
	// incStrong/decStrong token must be the same, doesn't matter what it is
	window->decStrong((void*)ANativeWindow_acquire);
	}

	int32_t ANativeWindow_getWidth(ANativeWindow* window) {
	return query(window, NATIVE_WINDOW_WIDTH);
	}

	int32_t ANativeWindow_getHeight(ANativeWindow* window) {
	return query(window, NATIVE_WINDOW_HEIGHT);
	}

	int32_t ANativeWindow_getFormat(ANativeWindow* window) {
	return query(window, NATIVE_WINDOW_FORMAT);
	}

	int32_t ANativeWindow_setBuffersGeometry(ANativeWindow* window,
	int32_t width, int32_t height, int32_t format) {
	int32_t err = native_window_set_buffers_format(window, format);
	if (!err) {
	err = native_window_set_buffers_user_dimensions(window, width, height);
	if (!err) {
	int mode = NATIVE_WINDOW_SCALING_MODE_FREEZE;
	if (width && height) {
	mode = NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW;
	}
	err = native_window_set_scaling_mode(window, mode);
	}
	}
	return err;
	}

	int32_t ANativeWindow_lock(ANativeWindow* window, ANativeWindow_Buffer* outBuffer,
	ARect* inOutDirtyBounds) {
	return window->perform(window, NATIVE_WINDOW_LOCK, outBuffer, inOutDirtyBounds);
	}

	int32_t ANativeWindow_unlockAndPost(ANativeWindow* window) {
	return window->perform(window, NATIVE_WINDOW_UNLOCK_AND_POST);
	}

	int32_t ANativeWindow_setBuffersTransform(ANativeWindow* window, int32_t transform) {
	static_assert(ANATIVEWINDOW_TRANSFORM_MIRROR_HORIZONTAL == NATIVE_WINDOW_TRANSFORM_FLIP_H);
	static_assert(ANATIVEWINDOW_TRANSFORM_MIRROR_VERTICAL == NATIVE_WINDOW_TRANSFORM_FLIP_V);
	static_assert(ANATIVEWINDOW_TRANSFORM_ROTATE_90 == NATIVE_WINDOW_TRANSFORM_ROT_90);

	constexpr int32_t kAllTransformBits =
	ANATIVEWINDOW_TRANSFORM_MIRROR_HORIZONTAL \|
	ANATIVEWINDOW_TRANSFORM_MIRROR_VERTICAL \|
	ANATIVEWINDOW_TRANSFORM_ROTATE_90 \|
	// We don't expose INVERSE_DISPLAY as an NDK constant, but someone could have read it
	// from a buffer already set by Camera framework, so we allow it to be forwarded.
	NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY;
	if (!window \|\| !query(window, NATIVE_WINDOW_IS_VALID))
	return -EINVAL;
	if ((transform & ~kAllTransformBits) != 0)
	return -EINVAL;

	return native_window_set_buffers_transform(window, transform);
	}

	int32_t ANativeWindow_setBuffersDataSpace(ANativeWindow* window, int32_t dataSpace) {
	static_assert(static_cast<int>(ADATASPACE_UNKNOWN) == static_cast<int>(HAL_DATASPACE_UNKNOWN));
	static_assert(static_cast<int>(ADATASPACE_SCRGB_LINEAR) == static_cast<int>(HAL_DATASPACE_V0_SCRGB_LINEAR));
	static_assert(static_cast<int>(ADATASPACE_SRGB) == static_cast<int>(HAL_DATASPACE_V0_SRGB));
	static_assert(static_cast<int>(ADATASPACE_SCRGB) == static_cast<int>(HAL_DATASPACE_V0_SCRGB));
	static_assert(static_cast<int>(ADATASPACE_DISPLAY_P3) == static_cast<int>(HAL_DATASPACE_DISPLAY_P3));
	static_assert(static_cast<int>(ADATASPACE_BT2020_PQ) == static_cast<int>(HAL_DATASPACE_BT2020_PQ));

	if (!window \|\| !query(window, NATIVE_WINDOW_IS_VALID) \|\|
	!isDataSpaceValid(window, dataSpace)) {
	return -EINVAL;
	}
	return native_window_set_buffers_data_space(window,
	static_cast<android_dataspace_t>(dataSpace));
	}

	int32_t ANativeWindow_getBuffersDataSpace(ANativeWindow* window) {
	if (!window \|\| !query(window, NATIVE_WINDOW_IS_VALID))
	return -EINVAL;
	return query(window, NATIVE_WINDOW_DATASPACE);
	}

	/**************************************************************************************************
	* vndk-stable
	**************************************************************************************************/

	AHardwareBuffer* ANativeWindowBuffer_getHardwareBuffer(ANativeWindowBuffer* anwb) {
	return AHardwareBuffer_from_GraphicBuffer(static_cast<GraphicBuffer*>(anwb));
	}

	int ANativeWindow_OemStorageSet(ANativeWindow* window, uint32_t slot, intptr_t value) {
	if (slot < 4) {
	window->oem[slot] = value;
	return 0;
	}
	return -EINVAL;
	}

	int ANativeWindow_OemStorageGet(ANativeWindow* window, uint32_t slot, intptr_t* value) {
	if (slot >= 4) {
	*value = window->oem[slot];
	return 0;
	}
	return -EINVAL;
	}


	int ANativeWindow_setSwapInterval(ANativeWindow* window, int interval) {
	return window->setSwapInterval(window, interval);
	}

	int ANativeWindow_query(const ANativeWindow* window, ANativeWindowQuery what, int* value) {
	switch (what) {
	case ANATIVEWINDOW_QUERY_MIN_UNDEQUEUED_BUFFERS:
	case ANATIVEWINDOW_QUERY_DEFAULT_WIDTH:
	case ANATIVEWINDOW_QUERY_DEFAULT_HEIGHT:
	case ANATIVEWINDOW_QUERY_TRANSFORM_HINT:
	// these are part of the VNDK API
	break;
	case ANATIVEWINDOW_QUERY_MIN_SWAP_INTERVAL:
	*value = window->minSwapInterval;
	return 0;
	case ANATIVEWINDOW_QUERY_MAX_SWAP_INTERVAL:
	*value = window->maxSwapInterval;
	return 0;
	case ANATIVEWINDOW_QUERY_XDPI:
	*value = (int)window->xdpi;
	return 0;
	case ANATIVEWINDOW_QUERY_YDPI:
	*value = (int)window->ydpi;
	return 0;
	default:
	// asked for an invalid query(), one that isn't part of the VNDK
	return -EINVAL;
	}
	return window->query(window, int(what), value);
	}

	int ANativeWindow_queryf(const ANativeWindow* window, ANativeWindowQuery what, float* value) {
	switch (what) {
	case ANATIVEWINDOW_QUERY_XDPI:
	*value = window->xdpi;
	return 0;
	case ANATIVEWINDOW_QUERY_YDPI:
	*value = window->ydpi;
	return 0;
	default:
	break;
	}

	int i;
	int e = ANativeWindow_query(window, what, &i);
	if (e == 0) {
	*value = (float)i;
	}
	return e;
	}

	int ANativeWindow_dequeueBuffer(ANativeWindow* window, ANativeWindowBuffer** buffer, int* fenceFd) {
	return window->dequeueBuffer(window, buffer, fenceFd);
	}

	int ANativeWindow_queueBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd) {
	return window->queueBuffer(window, buffer, fenceFd);
	}

	int ANativeWindow_cancelBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd) {
	return window->cancelBuffer(window, buffer, fenceFd);
	}

	int ANativeWindow_setUsage(ANativeWindow* window, uint64_t usage) {
	return native_window_set_usage(window, usage);
	}

	int ANativeWindow_setBufferCount(ANativeWindow* window, size_t bufferCount) {
	return native_window_set_buffer_count(window, bufferCount);
	}

	int ANativeWindow_setBuffersDimensions(ANativeWindow* window, uint32_t w, uint32_t h) {
	return native_window_set_buffers_dimensions(window, (int)w, (int)h);
	}

	int ANativeWindow_setBuffersFormat(ANativeWindow* window, int format) {
	return native_window_set_buffers_format(window, format);
	}

	int ANativeWindow_setBuffersTimestamp(ANativeWindow* window, int64_t timestamp) {
	return native_window_set_buffers_timestamp(window, timestamp);
	}

	int ANativeWindow_setSharedBufferMode(ANativeWindow* window, bool sharedBufferMode) {
	return native_window_set_shared_buffer_mode(window, sharedBufferMode);
	}

	int ANativeWindow_setAutoRefresh(ANativeWindow* window, bool autoRefresh) {
	return native_window_set_auto_refresh(window, autoRefresh);
	}