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Unified Diff: third_party/hwcplus/include/hardware/hwcomposer.h

Issue 2643643008: Delete third_party/hwcplus/ (Closed)
Patch Set: Created 3 years, 11 months ago
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Index: third_party/hwcplus/include/hardware/hwcomposer.h
diff --git a/third_party/hwcplus/include/hardware/hwcomposer.h b/third_party/hwcplus/include/hardware/hwcomposer.h
deleted file mode 100644
index 86479d3ce7abb4a8ce8b3ecd90f0c18157ae16d4..0000000000000000000000000000000000000000
--- a/third_party/hwcplus/include/hardware/hwcomposer.h
+++ /dev/null
@@ -1,647 +0,0 @@
-/*
- * 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.
- */
-
-#ifndef ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_H
-#define ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_H
-
-#include <stdint.h>
-#include <sys/cdefs.h>
-
-#include <hardware/gralloc.h>
-#include <hardware/hardware.h>
-#include <cutils/native_handle.h>
-
-#include <hardware/hwcomposer_defs.h>
-
-__BEGIN_DECLS
-
-/*****************************************************************************/
-
-/* for compatibility */
-#define HWC_MODULE_API_VERSION HWC_MODULE_API_VERSION_0_1
-#define HWC_DEVICE_API_VERSION HWC_DEVICE_API_VERSION_0_1
-#define HWC_API_VERSION HWC_DEVICE_API_VERSION
-
-/*****************************************************************************/
-
-/**
- * The id of this module
- */
-#define HWC_HARDWARE_MODULE_ID "hwcomposer"
-
-/**
- * Name of the sensors device to open
- */
-#define HWC_HARDWARE_COMPOSER "composer"
-
-typedef struct hwc_rect {
- int left;
- int top;
- int right;
- int bottom;
-} hwc_rect_t;
-
-typedef struct hwc_frect {
- float left;
- float top;
- float right;
- float bottom;
-} hwc_frect_t;
-
-typedef struct hwc_region {
- size_t numRects;
- hwc_rect_t const* rects;
-} hwc_region_t;
-
-typedef struct hwc_color {
- uint8_t r;
- uint8_t g;
- uint8_t b;
- uint8_t a;
-} hwc_color_t;
-
-typedef struct hwc_layer_1 {
- /*
- * compositionType is used to specify this layer's type and is set by either
- * the hardware composer implementation, or by the caller (see below).
- *
- * This field is always reset to HWC_BACKGROUND or HWC_FRAMEBUFFER
- * before (*prepare)() is called when the HWC_GEOMETRY_CHANGED flag is
- * also set, otherwise, this field is preserved between (*prepare)()
- * calls.
- *
- * HWC_BACKGROUND
- * Always set by the caller before calling (*prepare)(), this value
- * indicates this is a special "background" layer. The only valid field
- * is backgroundColor.
- * The HWC can toggle this value to HWC_FRAMEBUFFER to indicate it CANNOT
- * handle the background color.
- *
- *
- * HWC_FRAMEBUFFER_TARGET
- * Always set by the caller before calling (*prepare)(), this value
- * indicates this layer is the framebuffer surface used as the target of
- * OpenGL ES composition. If the HWC sets all other layers to HWC_OVERLAY
- * or HWC_BACKGROUND, then no OpenGL ES composition will be done, and
- * this layer should be ignored during set().
- *
- * This flag (and the framebuffer surface layer) will only be used if the
- * HWC version is HWC_DEVICE_API_VERSION_1_1 or higher. In older versions,
- * the OpenGL ES target surface is communicated by the (dpy, sur) fields
- * in hwc_compositor_device_1_t.
- *
- * This value cannot be set by the HWC implementation.
- *
- *
- * HWC_FRAMEBUFFER
- * Set by the caller before calling (*prepare)() ONLY when the
- * HWC_GEOMETRY_CHANGED flag is also set.
- *
- * Set by the HWC implementation during (*prepare)(), this indicates
- * that the layer will be drawn into the framebuffer using OpenGL ES.
- * The HWC can toggle this value to HWC_OVERLAY to indicate it will
- * handle the layer.
- *
- *
- * HWC_OVERLAY
- * Set by the HWC implementation during (*prepare)(), this indicates
- * that the layer will be handled by the HWC (ie: it must not be
- * composited with OpenGL ES).
- *
- */
- int32_t compositionType;
-
- /*
- * hints is bit mask set by the HWC implementation during (*prepare)().
- * It is preserved between (*prepare)() calls, unless the
- * HWC_GEOMETRY_CHANGED flag is set, in which case it is reset to 0.
- *
- * see hwc_layer_t::hints
- */
- uint32_t hints;
-
- /* see hwc_layer_t::flags */
- uint32_t flags;
-
- union {
- /* color of the background. hwc_color_t.a is ignored */
- hwc_color_t backgroundColor;
-
- struct {
- /* handle of buffer to compose. This handle is guaranteed to have been
- * allocated from gralloc using the GRALLOC_USAGE_HW_COMPOSER usage flag. If
- * the layer's handle is unchanged across two consecutive prepare calls and
- * the HWC_GEOMETRY_CHANGED flag is not set for the second call then the
- * HWComposer implementation may assume that the contents of the buffer have
- * not changed. */
- buffer_handle_t handle;
-
- /* transformation to apply to the buffer during composition */
- uint32_t transform;
-
- /* blending to apply during composition */
- int32_t blending;
-
- /* area of the source to consider, the origin is the top-left corner of
- * the buffer. As of HWC_DEVICE_API_VERSION_1_3, sourceRect uses floats.
- * If the h/w can't support a non-integer source crop rectangle, it should
- * punt to OpenGL ES composition.
- */
- union {
- // crop rectangle in integer (pre HWC_DEVICE_API_VERSION_1_3)
- hwc_rect_t sourceCropi;
- hwc_rect_t sourceCrop; // just for source compatibility
- // crop rectangle in floats (as of HWC_DEVICE_API_VERSION_1_3)
- hwc_frect_t sourceCropf;
- };
-
- /* where to composite the sourceCrop onto the display. The sourceCrop
- * is scaled using linear filtering to the displayFrame. The origin is the
- * top-left corner of the screen.
- */
- hwc_rect_t displayFrame;
-
- /* visible region in screen space. The origin is the
- * top-left corner of the screen.
- * The visible region INCLUDES areas overlapped by a translucent layer.
- */
- hwc_region_t visibleRegionScreen;
-
- /* Sync fence object that will be signaled when the buffer's
- * contents are available. May be -1 if the contents are already
- * available. This field is only valid during set(), and should be
- * ignored during prepare(). The set() call must not wait for the
- * fence to be signaled before returning, but the HWC must wait for
- * all buffers to be signaled before reading from them.
- *
- * HWC_FRAMEBUFFER layers will never have an acquire fence, since
- * reads from them are complete before the framebuffer is ready for
- * display.
- *
- * The HWC takes ownership of the acquireFenceFd and is responsible
- * for closing it when no longer needed.
- */
- int acquireFenceFd;
-
- /* During set() the HWC must set this field to a file descriptor for
- * a sync fence object that will signal after the HWC has finished
- * reading from the buffer. The field is ignored by prepare(). Each
- * layer should have a unique file descriptor, even if more than one
- * refer to the same underlying fence object; this allows each to be
- * closed independently.
- *
- * If buffer reads can complete at significantly different times,
- * then using independent fences is preferred. For example, if the
- * HWC handles some layers with a blit engine and others with
- * overlays, then the blit layers can be reused immediately after
- * the blit completes, but the overlay layers can't be reused until
- * a subsequent frame has been displayed.
- *
- * Since HWC doesn't read from HWC_FRAMEBUFFER layers, it shouldn't
- * produce a release fence for them. The releaseFenceFd will be -1
- * for these layers when set() is called.
- *
- * The HWC client taks ownership of the releaseFenceFd and is
- * responsible for closing it when no longer needed.
- */
- int releaseFenceFd;
-
- /*
- * Availability: HWC_DEVICE_API_VERSION_1_2
- *
- * Alpha value applied to the whole layer. The effective
- * value of each pixel is computed as:
- *
- * if (blending == HWC_BLENDING_PREMULT)
- * pixel.rgb = pixel.rgb * planeAlpha / 255
- * pixel.a = pixel.a * planeAlpha / 255
- *
- * Then blending proceeds as usual according to the "blending"
- * field above.
- *
- * NOTE: planeAlpha applies to YUV layers as well:
- *
- * pixel.rgb = yuv_to_rgb(pixel.yuv)
- * if (blending == HWC_BLENDING_PREMULT)
- * pixel.rgb = pixel.rgb * planeAlpha / 255
- * pixel.a = planeAlpha
- *
- *
- * IMPLEMENTATION NOTE:
- *
- * If the source image doesn't have an alpha channel, then
- * the h/w can use the HWC_BLENDING_COVERAGE equations instead of
- * HWC_BLENDING_PREMULT and simply set the alpha channel to
- * planeAlpha.
- *
- * e.g.:
- *
- * if (blending == HWC_BLENDING_PREMULT)
- * blending = HWC_BLENDING_COVERAGE;
- * pixel.a = planeAlpha;
- *
- */
- uint8_t planeAlpha;
-
- /* reserved for future use */
- uint8_t _pad[3];
- };
- };
-
- /* Allow for expansion w/o breaking binary compatibility.
- * Pad layer to 96 bytes, assuming 32-bit pointers.
- */
- int32_t reserved[24 - 19];
-
-} hwc_layer_1_t;
-
-/* This represents a display, typically an EGLDisplay object */
-typedef void* hwc_display_t;
-
-/* This represents a surface, typically an EGLSurface object */
-typedef void* hwc_surface_t;
-
-/*
- * hwc_display_contents_1_t::flags values
- */
-enum {
- /*
- * HWC_GEOMETRY_CHANGED is set by SurfaceFlinger to indicate that the list
- * passed to (*prepare)() has changed by more than just the buffer handles
- * and acquire fences.
- */
- HWC_GEOMETRY_CHANGED = 0x00000001,
-};
-
-/*
- * Description of the contents to output on a display.
- *
- * This is the top-level structure passed to the prepare and set calls to
- * negotiate and commit the composition of a display image.
- */
-typedef struct hwc_display_contents_1 {
- /* File descriptor referring to a Sync HAL fence object which will signal
- * when this composition is retired. For a physical display, a composition
- * is retired when it has been replaced on-screen by a subsequent set. For
- * a virtual display, the composition is retired when the writes to
- * outputBuffer are complete and can be read. The fence object is created
- * and returned by the set call; this field will be -1 on entry to prepare
- * and set. SurfaceFlinger will close the returned file descriptor.
- */
- int retireFenceFd;
-
- union {
- /* Fields only relevant for HWC_DEVICE_VERSION_1_0. */
- struct {
- /* (dpy, sur) is the target of SurfaceFlinger's OpenGL ES
- * composition for HWC_DEVICE_VERSION_1_0. They aren't relevant to
- * prepare. The set call should commit this surface atomically to
- * the display along with any overlay layers.
- */
- hwc_display_t dpy;
- hwc_surface_t sur;
- };
-
- /* These fields are used for virtual displays when the h/w composer
- * version is at least HWC_DEVICE_VERSION_1_3. */
- struct {
- /* outbuf is the buffer that receives the composed image for
- * virtual displays. Writes to the outbuf must wait until
- * outbufAcquireFenceFd signals. A fence that will signal when
- * writes to outbuf are complete should be returned in
- * retireFenceFd.
- *
- * This field is set before prepare(), so properties of the buffer
- * can be used to decide which layers can be handled by h/w
- * composer.
- *
- * If prepare() sets all layers to FRAMEBUFFER, then GLES
- * composition will happen directly to the output buffer. In this
- * case, both outbuf and the FRAMEBUFFER_TARGET layer's buffer will
- * be the same, and set() has no work to do besides managing fences.
- *
- * If the TARGET_FORCE_HWC_FOR_VIRTUAL_DISPLAYS board config
- * variable is defined (not the default), then this behavior is
- * changed: if all layers are marked for FRAMEBUFFER, GLES
- * composition will take place to a scratch framebuffer, and
- * h/w composer must copy it to the output buffer. This allows the
- * h/w composer to do format conversion if there are cases where
- * that is more desirable than doing it in the GLES driver or at the
- * virtual display consumer.
- *
- * If some or all layers are marked OVERLAY, then the framebuffer
- * and output buffer will be different. As with physical displays,
- * the framebuffer handle will not change between frames if all
- * layers are marked for OVERLAY.
- */
- buffer_handle_t outbuf;
-
- /* File descriptor for a fence that will signal when outbuf is
- * ready to be written. The h/w composer is responsible for closing
- * this when no longer needed.
- *
- * Will be -1 whenever outbuf is NULL, or when the outbuf can be
- * written immediately.
- */
- int outbufAcquireFenceFd;
- };
- };
-
- /* List of layers that will be composed on the display. The buffer handles
- * in the list will be unique. If numHwLayers is 0, all composition will be
- * performed by SurfaceFlinger.
- */
- uint32_t flags;
- size_t numHwLayers;
- hwc_layer_1_t hwLayers[0];
-
-} hwc_display_contents_1_t;
-
-/* see hwc_composer_device::registerProcs()
- * All of the callbacks are required and non-NULL unless otherwise noted.
- */
-typedef struct hwc_procs {
- /*
- * (*invalidate)() triggers a screen refresh, in particular prepare and set
- * will be called shortly after this call is made. Note that there is
- * NO GUARANTEE that the screen refresh will happen after invalidate()
- * returns (in particular, it could happen before).
- * invalidate() is GUARANTEED TO NOT CALL BACK into the h/w composer HAL and
- * it is safe to call invalidate() from any of hwc_composer_device
- * hooks, unless noted otherwise.
- */
- void (*invalidate)(const struct hwc_procs* procs);
-
- /*
- * (*vsync)() is called by the h/w composer HAL when a vsync event is
- * received and HWC_EVENT_VSYNC is enabled on a display
- * (see: hwc_event_control).
- *
- * the "disp" parameter indicates which display the vsync event is for.
- * the "timestamp" parameter is the system monotonic clock timestamp in
- * nanosecond of when the vsync event happened.
- *
- * vsync() is GUARANTEED TO NOT CALL BACK into the h/w composer HAL.
- *
- * It is expected that vsync() is called from a thread of at least
- * HAL_PRIORITY_URGENT_DISPLAY with as little latency as possible,
- * typically less than 0.5 ms.
- *
- * It is a (silent) error to have HWC_EVENT_VSYNC enabled when calling
- * hwc_composer_device.set(..., 0, 0, 0) (screen off). The implementation
- * can either stop or continue to process VSYNC events, but must not
- * crash or cause other problems.
- */
- void (*vsync)(const struct hwc_procs* procs, int disp, int64_t timestamp);
-
- /*
- * (*hotplug)() is called by the h/w composer HAL when a display is
- * connected or disconnected. The PRIMARY display is always connected and
- * the hotplug callback should not be called for it.
- *
- * The disp parameter indicates which display type this event is for.
- * The connected parameter indicates whether the display has just been
- * connected (1) or disconnected (0).
- *
- * The hotplug() callback may call back into the h/w composer on the same
- * thread to query refresh rate and dpi for the display. Additionally,
- * other threads may be calling into the h/w composer while the callback
- * is in progress.
- *
- * The h/w composer must serialize calls to the hotplug callback; only
- * one thread may call it at a time.
- *
- * This callback will be NULL if the h/w composer is using
- * HWC_DEVICE_API_VERSION_1_0.
- */
- void (*hotplug)(const struct hwc_procs* procs, int disp, int connected);
-
-} hwc_procs_t;
-
-
-/*****************************************************************************/
-
-typedef struct hwc_module {
- struct hw_module_t common;
-} hwc_module_t;
-
-typedef struct hwc_composer_device_1 {
- struct hw_device_t common;
-
- /*
- * (*prepare)() is called for each frame before composition and is used by
- * SurfaceFlinger to determine what composition steps the HWC can handle.
- *
- * (*prepare)() can be called more than once, the last call prevails.
- *
- * The HWC responds by setting the compositionType field in each layer to
- * either HWC_FRAMEBUFFER or HWC_OVERLAY. In the former case, the
- * composition for the layer is handled by SurfaceFlinger with OpenGL ES,
- * in the later case, the HWC will have to handle the layer's composition.
- * compositionType and hints are preserved between (*prepare)() calles
- * unless the HWC_GEOMETRY_CHANGED flag is set.
- *
- * (*prepare)() is called with HWC_GEOMETRY_CHANGED to indicate that the
- * list's geometry has changed, that is, when more than just the buffer's
- * handles have been updated. Typically this happens (but is not limited to)
- * when a window is added, removed, resized or moved. In this case
- * compositionType and hints are reset to their default value.
- *
- * For HWC 1.0, numDisplays will always be one, and displays[0] will be
- * non-NULL.
- *
- * For HWC 1.1, numDisplays will always be HWC_NUM_PHYSICAL_DISPLAY_TYPES.
- * Entries for unsupported or disabled/disconnected display types will be
- * NULL.
- *
- * In HWC 1.3, numDisplays may be up to HWC_NUM_DISPLAY_TYPES. The extra
- * entries correspond to enabled virtual displays, and will be non-NULL.
- *
- * returns: 0 on success. An negative error code on error. If an error is
- * returned, SurfaceFlinger will assume that none of the layer will be
- * handled by the HWC.
- */
- int (*prepare)(struct hwc_composer_device_1 *dev,
- size_t numDisplays, hwc_display_contents_1_t** displays);
-
- /*
- * (*set)() is used in place of eglSwapBuffers(), and assumes the same
- * functionality, except it also commits the work list atomically with
- * the actual eglSwapBuffers().
- *
- * The layer lists are guaranteed to be the same as the ones returned from
- * the last call to (*prepare)().
- *
- * When this call returns the caller assumes that the displays will be
- * updated in the near future with the content of their work lists, without
- * artifacts during the transition from the previous frame.
- *
- * A display with zero layers indicates that the entire composition has
- * been handled by SurfaceFlinger with OpenGL ES. In this case, (*set)()
- * behaves just like eglSwapBuffers().
- *
- * For HWC 1.0, numDisplays will always be one, and displays[0] will be
- * non-NULL.
- *
- * For HWC 1.1, numDisplays will always be HWC_NUM_PHYSICAL_DISPLAY_TYPES.
- * Entries for unsupported or disabled/disconnected display types will be
- * NULL.
- *
- * In HWC 1.3, numDisplays may be up to HWC_NUM_DISPLAY_TYPES. The extra
- * entries correspond to enabled virtual displays, and will be non-NULL.
- *
- * IMPORTANT NOTE: There is an implicit layer containing opaque black
- * pixels behind all the layers in the list. It is the responsibility of
- * the hwcomposer module to make sure black pixels are output (or blended
- * from).
- *
- * IMPORTANT NOTE: In the event of an error this call *MUST* still cause
- * any fences returned in the previous call to set to eventually become
- * signaled. The caller may have already issued wait commands on these
- * fences, and having set return without causing those fences to signal
- * will likely result in a deadlock.
- *
- * returns: 0 on success. A negative error code on error:
- * HWC_EGL_ERROR: eglGetError() will provide the proper error code (only
- * allowed prior to HWComposer 1.1)
- * Another code for non EGL errors.
- */
- int (*set)(struct hwc_composer_device_1 *dev,
- size_t numDisplays, hwc_display_contents_1_t** displays);
-
- /*
- * eventControl(..., event, enabled)
- * Enables or disables h/w composer events for a display.
- *
- * eventControl can be called from any thread and takes effect
- * immediately.
- *
- * Supported events are:
- * HWC_EVENT_VSYNC
- *
- * returns -EINVAL if the "event" parameter is not one of the value above
- * or if the "enabled" parameter is not 0 or 1.
- */
- int (*eventControl)(struct hwc_composer_device_1* dev, int disp,
- int event, int enabled);
-
- /*
- * blank(..., blank)
- * Blanks or unblanks a display's screen.
- *
- * Turns the screen off when blank is nonzero, on when blank is zero.
- * Multiple sequential calls with the same blank value must be supported.
- * The screen state transition must be be complete when the function
- * returns.
- *
- * returns 0 on success, negative on error.
- */
- int (*blank)(struct hwc_composer_device_1* dev, int disp, int blank);
-
- /*
- * Used to retrieve information about the h/w composer
- *
- * Returns 0 on success or -errno on error.
- */
- int (*query)(struct hwc_composer_device_1* dev, int what, int* value);
-
- /*
- * (*registerProcs)() registers callbacks that the h/w composer HAL can
- * later use. It will be called immediately after the composer device is
- * opened with non-NULL procs. It is FORBIDDEN to call any of the callbacks
- * from within registerProcs(). registerProcs() must save the hwc_procs_t
- * pointer which is needed when calling a registered callback.
- */
- void (*registerProcs)(struct hwc_composer_device_1* dev,
- hwc_procs_t const* procs);
-
- /*
- * This field is OPTIONAL and can be NULL.
- *
- * If non NULL it will be called by SurfaceFlinger on dumpsys
- */
- void (*dump)(struct hwc_composer_device_1* dev, char *buff, int buff_len);
-
- /*
- * (*getDisplayConfigs)() returns handles for the configurations available
- * on the connected display. These handles must remain valid as long as the
- * display is connected.
- *
- * Configuration handles are written to configs. The number of entries
- * allocated by the caller is passed in *numConfigs; getDisplayConfigs must
- * not try to write more than this number of config handles. On return, the
- * total number of configurations available for the display is returned in
- * *numConfigs. If *numConfigs is zero on entry, then configs may be NULL.
- *
- * HWC_DEVICE_API_VERSION_1_1 does not provide a way to choose a config.
- * For displays that support multiple configurations, the h/w composer
- * implementation should choose one and report it as the first config in
- * the list. Reporting the not-chosen configs is not required.
- *
- * Returns 0 on success or -errno on error. If disp is a hotpluggable
- * display type and no display is connected, an error should be returned.
- *
- * This field is REQUIRED for HWC_DEVICE_API_VERSION_1_1 and later.
- * It should be NULL for previous versions.
- */
- int (*getDisplayConfigs)(struct hwc_composer_device_1* dev, int disp,
- uint32_t* configs, size_t* numConfigs);
-
- /*
- * (*getDisplayAttributes)() returns attributes for a specific config of a
- * connected display. The config parameter is one of the config handles
- * returned by getDisplayConfigs.
- *
- * The list of attributes to return is provided in the attributes
- * parameter, terminated by HWC_DISPLAY_NO_ATTRIBUTE. The value for each
- * requested attribute is written in order to the values array. The
- * HWC_DISPLAY_NO_ATTRIBUTE attribute does not have a value, so the values
- * array will have one less value than the attributes array.
- *
- * This field is REQUIRED for HWC_DEVICE_API_VERSION_1_1 and later.
- * It should be NULL for previous versions.
- *
- * If disp is a hotpluggable display type and no display is connected,
- * or if config is not a valid configuration for the display, a negative
- * value should be returned.
- */
- int (*getDisplayAttributes)(struct hwc_composer_device_1* dev, int disp,
- uint32_t config, const uint32_t* attributes, int32_t* values);
-
- /*
- * Reserved for future use. Must be NULL.
- */
- void* reserved_proc[4];
-
-} hwc_composer_device_1_t;
-
-/** convenience API for opening and closing a device */
-
-static inline int hwc_open_1(const struct hw_module_t* module,
- hwc_composer_device_1_t** device) {
- return module->methods->open(module,
- HWC_HARDWARE_COMPOSER, (struct hw_device_t**)device);
-}
-
-static inline int hwc_close_1(hwc_composer_device_1_t* device) {
- return device->common.close(&device->common);
-}
-
-/*****************************************************************************/
-
-__END_DECLS
-
-#endif /* ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_H */
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