Index: third_party/hwcplus/include/system/window.h |
diff --git a/third_party/hwcplus/include/system/window.h b/third_party/hwcplus/include/system/window.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..588f9c67499576554dbbdcc71d23e4655adba3e4 |
--- /dev/null |
+++ b/third_party/hwcplus/include/system/window.h |
@@ -0,0 +1,841 @@ |
+/* |
+ * Copyright (C) 2011 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. |
+ */ |
+ |
+#ifndef SYSTEM_CORE_INCLUDE_ANDROID_WINDOW_H |
+#define SYSTEM_CORE_INCLUDE_ANDROID_WINDOW_H |
+ |
+#include <cutils/native_handle.h> |
+#include <errno.h> |
+#include <limits.h> |
+#include <stdint.h> |
+#include <string.h> |
+#include <sys/cdefs.h> |
+#include <system/graphics.h> |
+#include <unistd.h> |
+ |
+__BEGIN_DECLS |
+ |
+/*****************************************************************************/ |
+ |
+#define ANDROID_NATIVE_MAKE_CONSTANT(a,b,c,d) \ |
+ (((unsigned)(a)<<24)|((unsigned)(b)<<16)|((unsigned)(c)<<8)|(unsigned)(d)) |
+ |
+#define ANDROID_NATIVE_WINDOW_MAGIC \ |
+ ANDROID_NATIVE_MAKE_CONSTANT('_','w','n','d') |
+ |
+#define ANDROID_NATIVE_BUFFER_MAGIC \ |
+ ANDROID_NATIVE_MAKE_CONSTANT('_','b','f','r') |
+ |
+// --------------------------------------------------------------------------- |
+ |
+// This #define may be used to conditionally compile device-specific code to |
+// support either the prior ANativeWindow interface, which did not pass libsync |
+// fences around, or the new interface that does. This #define is only present |
+// when the ANativeWindow interface does include libsync support. |
+#define ANDROID_NATIVE_WINDOW_HAS_SYNC 1 |
+ |
+// --------------------------------------------------------------------------- |
+ |
+typedef const native_handle_t* buffer_handle_t; |
+ |
+// --------------------------------------------------------------------------- |
+ |
+typedef struct android_native_rect_t |
+{ |
+ int32_t left; |
+ int32_t top; |
+ int32_t right; |
+ int32_t bottom; |
+} android_native_rect_t; |
+ |
+// --------------------------------------------------------------------------- |
+ |
+typedef struct android_native_base_t |
+{ |
+ /* a magic value defined by the actual EGL native type */ |
+ int magic; |
+ |
+ /* the sizeof() of the actual EGL native type */ |
+ int version; |
+ |
+ void* reserved[4]; |
+ |
+ /* reference-counting interface */ |
+ void (*incRef)(struct android_native_base_t* base); |
+ void (*decRef)(struct android_native_base_t* base); |
+} android_native_base_t; |
+ |
+typedef struct ANativeWindowBuffer |
+{ |
+#ifdef __cplusplus |
+ ANativeWindowBuffer() { |
+ common.magic = ANDROID_NATIVE_BUFFER_MAGIC; |
+ common.version = sizeof(ANativeWindowBuffer); |
+ memset(common.reserved, 0, sizeof(common.reserved)); |
+ } |
+ |
+ // Implement the methods that sp<ANativeWindowBuffer> expects so that it |
+ // can be used to automatically refcount ANativeWindowBuffer's. |
+ void incStrong(const void* id) const { |
+ common.incRef(const_cast<android_native_base_t*>(&common)); |
+ } |
+ void decStrong(const void* id) const { |
+ common.decRef(const_cast<android_native_base_t*>(&common)); |
+ } |
+#endif |
+ |
+ struct android_native_base_t common; |
+ |
+ int width; |
+ int height; |
+ int stride; |
+ int format; |
+ int usage; |
+ |
+ void* reserved[2]; |
+ |
+ buffer_handle_t handle; |
+ |
+ void* reserved_proc[8]; |
+} ANativeWindowBuffer_t; |
+ |
+// Old typedef for backwards compatibility. |
+typedef ANativeWindowBuffer_t android_native_buffer_t; |
+ |
+// --------------------------------------------------------------------------- |
+ |
+/* attributes queriable with query() */ |
+enum { |
+ NATIVE_WINDOW_WIDTH = 0, |
+ NATIVE_WINDOW_HEIGHT = 1, |
+ NATIVE_WINDOW_FORMAT = 2, |
+ |
+ /* The minimum number of buffers that must remain un-dequeued after a buffer |
+ * has been queued. This value applies only if set_buffer_count was used to |
+ * override the number of buffers and if a buffer has since been queued. |
+ * Users of the set_buffer_count ANativeWindow method should query this |
+ * value before calling set_buffer_count. If it is necessary to have N |
+ * buffers simultaneously dequeued as part of the steady-state operation, |
+ * and this query returns M then N+M buffers should be requested via |
+ * native_window_set_buffer_count. |
+ * |
+ * Note that this value does NOT apply until a single buffer has been |
+ * queued. In particular this means that it is possible to: |
+ * |
+ * 1. Query M = min undequeued buffers |
+ * 2. Set the buffer count to N + M |
+ * 3. Dequeue all N + M buffers |
+ * 4. Cancel M buffers |
+ * 5. Queue, dequeue, queue, dequeue, ad infinitum |
+ */ |
+ NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS = 3, |
+ |
+ /* Check whether queueBuffer operations on the ANativeWindow send the buffer |
+ * to the window compositor. The query sets the returned 'value' argument |
+ * to 1 if the ANativeWindow DOES send queued buffers directly to the window |
+ * compositor and 0 if the buffers do not go directly to the window |
+ * compositor. |
+ * |
+ * This can be used to determine whether protected buffer content should be |
+ * sent to the ANativeWindow. Note, however, that a result of 1 does NOT |
+ * indicate that queued buffers will be protected from applications or users |
+ * capturing their contents. If that behavior is desired then some other |
+ * mechanism (e.g. the GRALLOC_USAGE_PROTECTED flag) should be used in |
+ * conjunction with this query. |
+ */ |
+ NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER = 4, |
+ |
+ /* Get the concrete type of a ANativeWindow. See below for the list of |
+ * possible return values. |
+ * |
+ * This query should not be used outside the Android framework and will |
+ * likely be removed in the near future. |
+ */ |
+ NATIVE_WINDOW_CONCRETE_TYPE = 5, |
+ |
+ |
+ /* |
+ * Default width and height of ANativeWindow buffers, these are the |
+ * dimensions of the window buffers irrespective of the |
+ * NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS call and match the native window |
+ * size unless overridden by NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS. |
+ */ |
+ NATIVE_WINDOW_DEFAULT_WIDTH = 6, |
+ NATIVE_WINDOW_DEFAULT_HEIGHT = 7, |
+ |
+ /* |
+ * transformation that will most-likely be applied to buffers. This is only |
+ * a hint, the actual transformation applied might be different. |
+ * |
+ * INTENDED USE: |
+ * |
+ * The transform hint can be used by a producer, for instance the GLES |
+ * driver, to pre-rotate the rendering such that the final transformation |
+ * in the composer is identity. This can be very useful when used in |
+ * conjunction with the h/w composer HAL, in situations where it |
+ * cannot handle arbitrary rotations. |
+ * |
+ * 1. Before dequeuing a buffer, the GL driver (or any other ANW client) |
+ * queries the ANW for NATIVE_WINDOW_TRANSFORM_HINT. |
+ * |
+ * 2. The GL driver overrides the width and height of the ANW to |
+ * account for NATIVE_WINDOW_TRANSFORM_HINT. This is done by querying |
+ * NATIVE_WINDOW_DEFAULT_{WIDTH | HEIGHT}, swapping the dimensions |
+ * according to NATIVE_WINDOW_TRANSFORM_HINT and calling |
+ * native_window_set_buffers_dimensions(). |
+ * |
+ * 3. The GL driver dequeues a buffer of the new pre-rotated size. |
+ * |
+ * 4. The GL driver renders to the buffer such that the image is |
+ * already transformed, that is applying NATIVE_WINDOW_TRANSFORM_HINT |
+ * to the rendering. |
+ * |
+ * 5. The GL driver calls native_window_set_transform to apply |
+ * inverse transformation to the buffer it just rendered. |
+ * In order to do this, the GL driver needs |
+ * to calculate the inverse of NATIVE_WINDOW_TRANSFORM_HINT, this is |
+ * done easily: |
+ * |
+ * int hintTransform, inverseTransform; |
+ * query(..., NATIVE_WINDOW_TRANSFORM_HINT, &hintTransform); |
+ * inverseTransform = hintTransform; |
+ * if (hintTransform & HAL_TRANSFORM_ROT_90) |
+ * inverseTransform ^= HAL_TRANSFORM_ROT_180; |
+ * |
+ * |
+ * 6. The GL driver queues the pre-transformed buffer. |
+ * |
+ * 7. The composer combines the buffer transform with the display |
+ * transform. If the buffer transform happens to cancel out the |
+ * display transform then no rotation is needed. |
+ * |
+ */ |
+ NATIVE_WINDOW_TRANSFORM_HINT = 8, |
+ |
+ /* |
+ * Boolean that indicates whether the consumer is running more than |
+ * one buffer behind the producer. |
+ */ |
+ NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND = 9, |
+ |
+ /* |
+ * The consumer gralloc usage bits currently set by the consumer. |
+ * The values are defined in hardware/libhardware/include/gralloc.h. |
+ */ |
+ NATIVE_WINDOW_CONSUMER_USAGE_BITS = 10 |
+}; |
+ |
+/* Valid operations for the (*perform)() hook. |
+ * |
+ * Values marked as 'deprecated' are supported, but have been superceded by |
+ * other functionality. |
+ * |
+ * Values marked as 'private' should be considered private to the framework. |
+ * HAL implementation code with access to an ANativeWindow should not use these, |
+ * as it may not interact properly with the framework's use of the |
+ * ANativeWindow. |
+ */ |
+enum { |
+ NATIVE_WINDOW_SET_USAGE = 0, |
+ NATIVE_WINDOW_CONNECT = 1, /* deprecated */ |
+ NATIVE_WINDOW_DISCONNECT = 2, /* deprecated */ |
+ NATIVE_WINDOW_SET_CROP = 3, /* private */ |
+ NATIVE_WINDOW_SET_BUFFER_COUNT = 4, |
+ NATIVE_WINDOW_SET_BUFFERS_GEOMETRY = 5, /* deprecated */ |
+ NATIVE_WINDOW_SET_BUFFERS_TRANSFORM = 6, |
+ NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP = 7, |
+ NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS = 8, |
+ NATIVE_WINDOW_SET_BUFFERS_FORMAT = 9, |
+ NATIVE_WINDOW_SET_SCALING_MODE = 10, /* private */ |
+ NATIVE_WINDOW_LOCK = 11, /* private */ |
+ NATIVE_WINDOW_UNLOCK_AND_POST = 12, /* private */ |
+ NATIVE_WINDOW_API_CONNECT = 13, /* private */ |
+ NATIVE_WINDOW_API_DISCONNECT = 14, /* private */ |
+ NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS = 15, /* private */ |
+ NATIVE_WINDOW_SET_POST_TRANSFORM_CROP = 16, /* private */ |
+}; |
+ |
+/* parameter for NATIVE_WINDOW_[API_][DIS]CONNECT */ |
+enum { |
+ /* Buffers will be queued by EGL via eglSwapBuffers after being filled using |
+ * OpenGL ES. |
+ */ |
+ NATIVE_WINDOW_API_EGL = 1, |
+ |
+ /* Buffers will be queued after being filled using the CPU |
+ */ |
+ NATIVE_WINDOW_API_CPU = 2, |
+ |
+ /* Buffers will be queued by Stagefright after being filled by a video |
+ * decoder. The video decoder can either be a software or hardware decoder. |
+ */ |
+ NATIVE_WINDOW_API_MEDIA = 3, |
+ |
+ /* Buffers will be queued by the the camera HAL. |
+ */ |
+ NATIVE_WINDOW_API_CAMERA = 4, |
+}; |
+ |
+/* parameter for NATIVE_WINDOW_SET_BUFFERS_TRANSFORM */ |
+enum { |
+ /* flip source image horizontally */ |
+ NATIVE_WINDOW_TRANSFORM_FLIP_H = HAL_TRANSFORM_FLIP_H , |
+ /* flip source image vertically */ |
+ NATIVE_WINDOW_TRANSFORM_FLIP_V = HAL_TRANSFORM_FLIP_V, |
+ /* rotate source image 90 degrees clock-wise, and is applied after TRANSFORM_FLIP_{H|V} */ |
+ NATIVE_WINDOW_TRANSFORM_ROT_90 = HAL_TRANSFORM_ROT_90, |
+ /* rotate source image 180 degrees */ |
+ NATIVE_WINDOW_TRANSFORM_ROT_180 = HAL_TRANSFORM_ROT_180, |
+ /* rotate source image 270 degrees clock-wise */ |
+ NATIVE_WINDOW_TRANSFORM_ROT_270 = HAL_TRANSFORM_ROT_270, |
+ /* transforms source by the inverse transform of the screen it is displayed onto. This |
+ * transform is applied last */ |
+ NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY = 0x08 |
+}; |
+ |
+/* parameter for NATIVE_WINDOW_SET_SCALING_MODE */ |
+enum { |
+ /* the window content is not updated (frozen) until a buffer of |
+ * the window size is received (enqueued) |
+ */ |
+ NATIVE_WINDOW_SCALING_MODE_FREEZE = 0, |
+ /* the buffer is scaled in both dimensions to match the window size */ |
+ NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW = 1, |
+ /* the buffer is scaled uniformly such that the smaller dimension |
+ * of the buffer matches the window size (cropping in the process) |
+ */ |
+ NATIVE_WINDOW_SCALING_MODE_SCALE_CROP = 2, |
+ /* the window is clipped to the size of the buffer's crop rectangle; pixels |
+ * outside the crop rectangle are treated as if they are completely |
+ * transparent. |
+ */ |
+ NATIVE_WINDOW_SCALING_MODE_NO_SCALE_CROP = 3, |
+}; |
+ |
+/* values returned by the NATIVE_WINDOW_CONCRETE_TYPE query */ |
+enum { |
+ NATIVE_WINDOW_FRAMEBUFFER = 0, /* FramebufferNativeWindow */ |
+ NATIVE_WINDOW_SURFACE = 1, /* Surface */ |
+}; |
+ |
+/* parameter for NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP |
+ * |
+ * Special timestamp value to indicate that timestamps should be auto-generated |
+ * by the native window when queueBuffer is called. This is equal to INT64_MIN, |
+ * defined directly to avoid problems with C99/C++ inclusion of stdint.h. |
+ */ |
+static const int64_t NATIVE_WINDOW_TIMESTAMP_AUTO = (-9223372036854775807LL-1); |
+ |
+struct ANativeWindow |
+{ |
+#ifdef __cplusplus |
+ ANativeWindow() |
+ : flags(0), minSwapInterval(0), maxSwapInterval(0), xdpi(0), ydpi(0) |
+ { |
+ common.magic = ANDROID_NATIVE_WINDOW_MAGIC; |
+ common.version = sizeof(ANativeWindow); |
+ memset(common.reserved, 0, sizeof(common.reserved)); |
+ } |
+ |
+ /* Implement the methods that sp<ANativeWindow> expects so that it |
+ can be used to automatically refcount ANativeWindow's. */ |
+ void incStrong(const void* id) const { |
+ common.incRef(const_cast<android_native_base_t*>(&common)); |
+ } |
+ void decStrong(const void* id) const { |
+ common.decRef(const_cast<android_native_base_t*>(&common)); |
+ } |
+#endif |
+ |
+ struct android_native_base_t common; |
+ |
+ /* flags describing some attributes of this surface or its updater */ |
+ const uint32_t flags; |
+ |
+ /* min swap interval supported by this updated */ |
+ const int minSwapInterval; |
+ |
+ /* max swap interval supported by this updated */ |
+ const int maxSwapInterval; |
+ |
+ /* horizontal and vertical resolution in DPI */ |
+ const float xdpi; |
+ const float ydpi; |
+ |
+ /* Some storage reserved for the OEM's driver. */ |
+ intptr_t oem[4]; |
+ |
+ /* |
+ * Set the swap interval for this surface. |
+ * |
+ * Returns 0 on success or -errno on error. |
+ */ |
+ int (*setSwapInterval)(struct ANativeWindow* window, |
+ int interval); |
+ |
+ /* |
+ * Hook called by EGL to acquire a buffer. After this call, the buffer |
+ * is not locked, so its content cannot be modified. This call may block if |
+ * no buffers are available. |
+ * |
+ * The window holds a reference to the buffer between dequeueBuffer and |
+ * either queueBuffer or cancelBuffer, so clients only need their own |
+ * reference if they might use the buffer after queueing or canceling it. |
+ * Holding a reference to a buffer after queueing or canceling it is only |
+ * allowed if a specific buffer count has been set. |
+ * |
+ * Returns 0 on success or -errno on error. |
+ * |
+ * XXX: This function is deprecated. It will continue to work for some |
+ * time for binary compatibility, but the new dequeueBuffer function that |
+ * outputs a fence file descriptor should be used in its place. |
+ */ |
+ int (*dequeueBuffer_DEPRECATED)(struct ANativeWindow* window, |
+ struct ANativeWindowBuffer** buffer); |
+ |
+ /* |
+ * hook called by EGL to lock a buffer. This MUST be called before modifying |
+ * the content of a buffer. The buffer must have been acquired with |
+ * dequeueBuffer first. |
+ * |
+ * Returns 0 on success or -errno on error. |
+ * |
+ * XXX: This function is deprecated. It will continue to work for some |
+ * time for binary compatibility, but it is essentially a no-op, and calls |
+ * to it should be removed. |
+ */ |
+ int (*lockBuffer_DEPRECATED)(struct ANativeWindow* window, |
+ struct ANativeWindowBuffer* buffer); |
+ |
+ /* |
+ * Hook called by EGL when modifications to the render buffer are done. |
+ * This unlocks and post the buffer. |
+ * |
+ * The window holds a reference to the buffer between dequeueBuffer and |
+ * either queueBuffer or cancelBuffer, so clients only need their own |
+ * reference if they might use the buffer after queueing or canceling it. |
+ * Holding a reference to a buffer after queueing or canceling it is only |
+ * allowed if a specific buffer count has been set. |
+ * |
+ * Buffers MUST be queued in the same order than they were dequeued. |
+ * |
+ * Returns 0 on success or -errno on error. |
+ * |
+ * XXX: This function is deprecated. It will continue to work for some |
+ * time for binary compatibility, but the new queueBuffer function that |
+ * takes a fence file descriptor should be used in its place (pass a value |
+ * of -1 for the fence file descriptor if there is no valid one to pass). |
+ */ |
+ int (*queueBuffer_DEPRECATED)(struct ANativeWindow* window, |
+ struct ANativeWindowBuffer* buffer); |
+ |
+ /* |
+ * hook used to retrieve information about the native window. |
+ * |
+ * Returns 0 on success or -errno on error. |
+ */ |
+ int (*query)(const struct ANativeWindow* window, |
+ int what, int* value); |
+ |
+ /* |
+ * hook used to perform various operations on the surface. |
+ * (*perform)() is a generic mechanism to add functionality to |
+ * ANativeWindow while keeping backward binary compatibility. |
+ * |
+ * DO NOT CALL THIS HOOK DIRECTLY. Instead, use the helper functions |
+ * defined below. |
+ * |
+ * (*perform)() returns -ENOENT if the 'what' parameter is not supported |
+ * by the surface's implementation. |
+ * |
+ * The valid operations are: |
+ * NATIVE_WINDOW_SET_USAGE |
+ * NATIVE_WINDOW_CONNECT (deprecated) |
+ * NATIVE_WINDOW_DISCONNECT (deprecated) |
+ * NATIVE_WINDOW_SET_CROP (private) |
+ * NATIVE_WINDOW_SET_BUFFER_COUNT |
+ * NATIVE_WINDOW_SET_BUFFERS_GEOMETRY (deprecated) |
+ * NATIVE_WINDOW_SET_BUFFERS_TRANSFORM |
+ * NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP |
+ * NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS |
+ * NATIVE_WINDOW_SET_BUFFERS_FORMAT |
+ * NATIVE_WINDOW_SET_SCALING_MODE (private) |
+ * NATIVE_WINDOW_LOCK (private) |
+ * NATIVE_WINDOW_UNLOCK_AND_POST (private) |
+ * NATIVE_WINDOW_API_CONNECT (private) |
+ * NATIVE_WINDOW_API_DISCONNECT (private) |
+ * NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS (private) |
+ * NATIVE_WINDOW_SET_POST_TRANSFORM_CROP (private) |
+ * |
+ */ |
+ |
+ int (*perform)(struct ANativeWindow* window, |
+ int operation, ... ); |
+ |
+ /* |
+ * Hook used to cancel a buffer that has been dequeued. |
+ * No synchronization is performed between dequeue() and cancel(), so |
+ * either external synchronization is needed, or these functions must be |
+ * called from the same thread. |
+ * |
+ * The window holds a reference to the buffer between dequeueBuffer and |
+ * either queueBuffer or cancelBuffer, so clients only need their own |
+ * reference if they might use the buffer after queueing or canceling it. |
+ * Holding a reference to a buffer after queueing or canceling it is only |
+ * allowed if a specific buffer count has been set. |
+ * |
+ * XXX: This function is deprecated. It will continue to work for some |
+ * time for binary compatibility, but the new cancelBuffer function that |
+ * takes a fence file descriptor should be used in its place (pass a value |
+ * of -1 for the fence file descriptor if there is no valid one to pass). |
+ */ |
+ int (*cancelBuffer_DEPRECATED)(struct ANativeWindow* window, |
+ struct ANativeWindowBuffer* buffer); |
+ |
+ /* |
+ * Hook called by EGL to acquire a buffer. This call may block if no |
+ * buffers are available. |
+ * |
+ * The window holds a reference to the buffer between dequeueBuffer and |
+ * either queueBuffer or cancelBuffer, so clients only need their own |
+ * reference if they might use the buffer after queueing or canceling it. |
+ * Holding a reference to a buffer after queueing or canceling it is only |
+ * allowed if a specific buffer count has been set. |
+ * |
+ * The libsync fence file descriptor returned in the int pointed to by the |
+ * fenceFd argument will refer to the fence that must signal before the |
+ * dequeued buffer may be written to. A value of -1 indicates that the |
+ * caller may access the buffer immediately without waiting on a fence. If |
+ * a valid file descriptor is returned (i.e. any value except -1) then the |
+ * caller is responsible for closing the file descriptor. |
+ * |
+ * Returns 0 on success or -errno on error. |
+ */ |
+ int (*dequeueBuffer)(struct ANativeWindow* window, |
+ struct ANativeWindowBuffer** buffer, int* fenceFd); |
+ |
+ /* |
+ * Hook called by EGL when modifications to the render buffer are done. |
+ * This unlocks and post the buffer. |
+ * |
+ * The window holds a reference to the buffer between dequeueBuffer and |
+ * either queueBuffer or cancelBuffer, so clients only need their own |
+ * reference if they might use the buffer after queueing or canceling it. |
+ * Holding a reference to a buffer after queueing or canceling it is only |
+ * allowed if a specific buffer count has been set. |
+ * |
+ * The fenceFd argument specifies a libsync fence file descriptor for a |
+ * fence that must signal before the buffer can be accessed. If the buffer |
+ * can be accessed immediately then a value of -1 should be used. The |
+ * caller must not use the file descriptor after it is passed to |
+ * queueBuffer, and the ANativeWindow implementation is responsible for |
+ * closing it. |
+ * |
+ * Returns 0 on success or -errno on error. |
+ */ |
+ int (*queueBuffer)(struct ANativeWindow* window, |
+ struct ANativeWindowBuffer* buffer, int fenceFd); |
+ |
+ /* |
+ * Hook used to cancel a buffer that has been dequeued. |
+ * No synchronization is performed between dequeue() and cancel(), so |
+ * either external synchronization is needed, or these functions must be |
+ * called from the same thread. |
+ * |
+ * The window holds a reference to the buffer between dequeueBuffer and |
+ * either queueBuffer or cancelBuffer, so clients only need their own |
+ * reference if they might use the buffer after queueing or canceling it. |
+ * Holding a reference to a buffer after queueing or canceling it is only |
+ * allowed if a specific buffer count has been set. |
+ * |
+ * The fenceFd argument specifies a libsync fence file decsriptor for a |
+ * fence that must signal before the buffer can be accessed. If the buffer |
+ * can be accessed immediately then a value of -1 should be used. |
+ * |
+ * Note that if the client has not waited on the fence that was returned |
+ * from dequeueBuffer, that same fence should be passed to cancelBuffer to |
+ * ensure that future uses of the buffer are preceded by a wait on that |
+ * fence. The caller must not use the file descriptor after it is passed |
+ * to cancelBuffer, and the ANativeWindow implementation is responsible for |
+ * closing it. |
+ * |
+ * Returns 0 on success or -errno on error. |
+ */ |
+ int (*cancelBuffer)(struct ANativeWindow* window, |
+ struct ANativeWindowBuffer* buffer, int fenceFd); |
+}; |
+ |
+ /* Backwards compatibility: use ANativeWindow (struct ANativeWindow in C). |
+ * android_native_window_t is deprecated. |
+ */ |
+typedef struct ANativeWindow ANativeWindow; |
+typedef struct ANativeWindow android_native_window_t; |
+ |
+/* |
+ * native_window_set_usage(..., usage) |
+ * Sets the intended usage flags for the next buffers |
+ * acquired with (*lockBuffer)() and on. |
+ * By default (if this function is never called), a usage of |
+ * GRALLOC_USAGE_HW_RENDER | GRALLOC_USAGE_HW_TEXTURE |
+ * is assumed. |
+ * Calling this function will usually cause following buffers to be |
+ * reallocated. |
+ */ |
+ |
+static inline int native_window_set_usage( |
+ struct ANativeWindow* window, int usage) |
+{ |
+ return window->perform(window, NATIVE_WINDOW_SET_USAGE, usage); |
+} |
+ |
+/* deprecated. Always returns 0. Don't call. */ |
+static inline int native_window_connect( |
+ struct ANativeWindow* window, int api) { |
+ return 0; |
+} |
+ |
+/* deprecated. Always returns 0. Don't call. */ |
+static inline int native_window_disconnect( |
+ struct ANativeWindow* window, int api) { |
+ return 0; |
+} |
+ |
+/* |
+ * native_window_set_crop(..., crop) |
+ * Sets which region of the next queued buffers needs to be considered. |
+ * Depending on the scaling mode, a buffer's crop region is scaled and/or |
+ * cropped to match the surface's size. This function sets the crop in |
+ * pre-transformed buffer pixel coordinates. |
+ * |
+ * The specified crop region applies to all buffers queued after it is called. |
+ * |
+ * If 'crop' is NULL, subsequently queued buffers won't be cropped. |
+ * |
+ * An error is returned if for instance the crop region is invalid, out of the |
+ * buffer's bound or if the window is invalid. |
+ */ |
+static inline int native_window_set_crop( |
+ struct ANativeWindow* window, |
+ android_native_rect_t const * crop) |
+{ |
+ return window->perform(window, NATIVE_WINDOW_SET_CROP, crop); |
+} |
+ |
+/* |
+ * native_window_set_post_transform_crop(..., crop) |
+ * Sets which region of the next queued buffers needs to be considered. |
+ * Depending on the scaling mode, a buffer's crop region is scaled and/or |
+ * cropped to match the surface's size. This function sets the crop in |
+ * post-transformed pixel coordinates. |
+ * |
+ * The specified crop region applies to all buffers queued after it is called. |
+ * |
+ * If 'crop' is NULL, subsequently queued buffers won't be cropped. |
+ * |
+ * An error is returned if for instance the crop region is invalid, out of the |
+ * buffer's bound or if the window is invalid. |
+ */ |
+static inline int native_window_set_post_transform_crop( |
+ struct ANativeWindow* window, |
+ android_native_rect_t const * crop) |
+{ |
+ return window->perform(window, NATIVE_WINDOW_SET_POST_TRANSFORM_CROP, crop); |
+} |
+ |
+/* |
+ * native_window_set_active_rect(..., active_rect) |
+ * |
+ * This function is deprecated and will be removed soon. For now it simply |
+ * sets the post-transform crop for compatibility while multi-project commits |
+ * get checked. |
+ */ |
+static inline int native_window_set_active_rect( |
+ struct ANativeWindow* window, |
+ android_native_rect_t const * active_rect) |
+{ |
+ return native_window_set_post_transform_crop(window, active_rect); |
+} |
+ |
+/* |
+ * native_window_set_buffer_count(..., count) |
+ * Sets the number of buffers associated with this native window. |
+ */ |
+static inline int native_window_set_buffer_count( |
+ struct ANativeWindow* window, |
+ size_t bufferCount) |
+{ |
+ return window->perform(window, NATIVE_WINDOW_SET_BUFFER_COUNT, bufferCount); |
+} |
+ |
+/* |
+ * native_window_set_buffers_geometry(..., int w, int h, int format) |
+ * All buffers dequeued after this call will have the dimensions and format |
+ * specified. A successful call to this function has the same effect as calling |
+ * native_window_set_buffers_size and native_window_set_buffers_format. |
+ * |
+ * XXX: This function is deprecated. The native_window_set_buffers_dimensions |
+ * and native_window_set_buffers_format functions should be used instead. |
+ */ |
+static inline int native_window_set_buffers_geometry( |
+ struct ANativeWindow* window, |
+ int w, int h, int format) |
+{ |
+ return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_GEOMETRY, |
+ w, h, format); |
+} |
+ |
+/* |
+ * native_window_set_buffers_dimensions(..., int w, int h) |
+ * All buffers dequeued after this call will have the dimensions specified. |
+ * In particular, all buffers will have a fixed-size, independent from the |
+ * native-window size. They will be scaled according to the scaling mode |
+ * (see native_window_set_scaling_mode) upon window composition. |
+ * |
+ * If w and h are 0, the normal behavior is restored. That is, dequeued buffers |
+ * following this call will be sized to match the window's size. |
+ * |
+ * Calling this function will reset the window crop to a NULL value, which |
+ * disables cropping of the buffers. |
+ */ |
+static inline int native_window_set_buffers_dimensions( |
+ struct ANativeWindow* window, |
+ int w, int h) |
+{ |
+ return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS, |
+ w, h); |
+} |
+ |
+/* |
+ * native_window_set_buffers_user_dimensions(..., int w, int h) |
+ * |
+ * Sets the user buffer size for the window, which overrides the |
+ * window's size. All buffers dequeued after this call will have the |
+ * dimensions specified unless overridden by |
+ * native_window_set_buffers_dimensions. All buffers will have a |
+ * fixed-size, independent from the native-window size. They will be |
+ * scaled according to the scaling mode (see |
+ * native_window_set_scaling_mode) upon window composition. |
+ * |
+ * If w and h are 0, the normal behavior is restored. That is, the |
+ * default buffer size will match the windows's size. |
+ * |
+ * Calling this function will reset the window crop to a NULL value, which |
+ * disables cropping of the buffers. |
+ */ |
+static inline int native_window_set_buffers_user_dimensions( |
+ struct ANativeWindow* window, |
+ int w, int h) |
+{ |
+ return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS, |
+ w, h); |
+} |
+ |
+/* |
+ * native_window_set_buffers_format(..., int format) |
+ * All buffers dequeued after this call will have the format specified. |
+ * |
+ * If the specified format is 0, the default buffer format will be used. |
+ */ |
+static inline int native_window_set_buffers_format( |
+ struct ANativeWindow* window, |
+ int format) |
+{ |
+ return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_FORMAT, format); |
+} |
+ |
+/* |
+ * native_window_set_buffers_transform(..., int transform) |
+ * All buffers queued after this call will be displayed transformed according |
+ * to the transform parameter specified. |
+ */ |
+static inline int native_window_set_buffers_transform( |
+ struct ANativeWindow* window, |
+ int transform) |
+{ |
+ return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_TRANSFORM, |
+ transform); |
+} |
+ |
+/* |
+ * native_window_set_buffers_timestamp(..., int64_t timestamp) |
+ * All buffers queued after this call will be associated with the timestamp |
+ * parameter specified. If the timestamp is set to NATIVE_WINDOW_TIMESTAMP_AUTO |
+ * (the default), timestamps will be generated automatically when queueBuffer is |
+ * called. The timestamp is measured in nanoseconds, and is normally monotonically |
+ * increasing. The timestamp should be unaffected by time-of-day adjustments, |
+ * and for a camera should be strictly monotonic but for a media player may be |
+ * reset when the position is set. |
+ */ |
+static inline int native_window_set_buffers_timestamp( |
+ struct ANativeWindow* window, |
+ int64_t timestamp) |
+{ |
+ return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP, |
+ timestamp); |
+} |
+ |
+/* |
+ * native_window_set_scaling_mode(..., int mode) |
+ * All buffers queued after this call will be associated with the scaling mode |
+ * specified. |
+ */ |
+static inline int native_window_set_scaling_mode( |
+ struct ANativeWindow* window, |
+ int mode) |
+{ |
+ return window->perform(window, NATIVE_WINDOW_SET_SCALING_MODE, |
+ mode); |
+} |
+ |
+/* |
+ * native_window_api_connect(..., int api) |
+ * connects an API to this window. only one API can be connected at a time. |
+ * Returns -EINVAL if for some reason the window cannot be connected, which |
+ * can happen if it's connected to some other API. |
+ */ |
+static inline int native_window_api_connect( |
+ struct ANativeWindow* window, int api) |
+{ |
+ return window->perform(window, NATIVE_WINDOW_API_CONNECT, api); |
+} |
+ |
+/* |
+ * native_window_api_disconnect(..., int api) |
+ * disconnect the API from this window. |
+ * An error is returned if for instance the window wasn't connected in the |
+ * first place. |
+ */ |
+static inline int native_window_api_disconnect( |
+ struct ANativeWindow* window, int api) |
+{ |
+ return window->perform(window, NATIVE_WINDOW_API_DISCONNECT, api); |
+} |
+ |
+/* |
+ * native_window_dequeue_buffer_and_wait(...) |
+ * Dequeue a buffer and wait on the fence associated with that buffer. The |
+ * buffer may safely be accessed immediately upon this function returning. An |
+ * error is returned if either of the dequeue or the wait operations fail. |
+ */ |
+static inline int native_window_dequeue_buffer_and_wait(ANativeWindow *anw, |
+ struct ANativeWindowBuffer** anb) { |
+ return anw->dequeueBuffer_DEPRECATED(anw, anb); |
+} |
+ |
+ |
+__END_DECLS |
+ |
+#endif /* SYSTEM_CORE_INCLUDE_ANDROID_WINDOW_H */ |