You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
402 lines
14 KiB
402 lines
14 KiB
6 years ago
|
/*
|
||
|
|
* Copyright (C) 2008 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_GRALLOC_INTERFACE_H
|
||
|
|
#define ANDROID_GRALLOC_INTERFACE_H
|
||
|
|
|
||
|
|
#include <system/window.h>
|
||
|
|
#include <system/graphics.h>
|
||
|
|
#include <hardware/hardware.h>
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <sys/cdefs.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
|
||
|
|
#include <cutils/native_handle.h>
|
||
|
|
|
||
|
|
#include <hardware/hardware.h>
|
||
|
|
#include <hardware/fb.h>
|
||
|
|
|
||
|
|
__BEGIN_DECLS
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Module versioning information for the Gralloc hardware module, based on
|
||
|
|
* gralloc_module_t.common.module_api_version.
|
||
|
|
*
|
||
|
|
* Version History:
|
||
|
|
*
|
||
|
|
* GRALLOC_MODULE_API_VERSION_0_1:
|
||
|
|
* Initial Gralloc hardware module API.
|
||
|
|
*
|
||
|
|
* GRALLOC_MODULE_API_VERSION_0_2:
|
||
|
|
* Add support for flexible YCbCr format with (*lock_ycbcr)() method.
|
||
|
|
*
|
||
|
|
* GRALLOC_MODULE_API_VERSION_0_3:
|
||
|
|
* Add support for fence passing to/from lock/unlock.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define GRALLOC_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
|
||
|
|
#define GRALLOC_MODULE_API_VERSION_0_2 HARDWARE_MODULE_API_VERSION(0, 2)
|
||
|
|
#define GRALLOC_MODULE_API_VERSION_0_3 HARDWARE_MODULE_API_VERSION(0, 3)
|
||
|
|
|
||
|
|
#define GRALLOC_DEVICE_API_VERSION_0_1 HARDWARE_DEVICE_API_VERSION(0, 1)
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The id of this module
|
||
|
|
*/
|
||
|
|
#define GRALLOC_HARDWARE_MODULE_ID "gralloc"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Name of the graphics device to open
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define GRALLOC_HARDWARE_GPU0 "gpu0"
|
||
|
|
|
||
|
|
enum {
|
||
|
|
/* buffer is never read in software */
|
||
|
|
GRALLOC_USAGE_SW_READ_NEVER = 0x00000000,
|
||
|
|
/* buffer is rarely read in software */
|
||
|
|
GRALLOC_USAGE_SW_READ_RARELY = 0x00000002,
|
||
|
|
/* buffer is often read in software */
|
||
|
|
GRALLOC_USAGE_SW_READ_OFTEN = 0x00000003,
|
||
|
|
/* mask for the software read values */
|
||
|
|
GRALLOC_USAGE_SW_READ_MASK = 0x0000000F,
|
||
|
|
|
||
|
|
/* buffer is never written in software */
|
||
|
|
GRALLOC_USAGE_SW_WRITE_NEVER = 0x00000000,
|
||
|
|
/* buffer is rarely written in software */
|
||
|
|
GRALLOC_USAGE_SW_WRITE_RARELY = 0x00000020,
|
||
|
|
/* buffer is often written in software */
|
||
|
|
GRALLOC_USAGE_SW_WRITE_OFTEN = 0x00000030,
|
||
|
|
/* mask for the software write values */
|
||
|
|
GRALLOC_USAGE_SW_WRITE_MASK = 0x000000F0,
|
||
|
|
|
||
|
|
/* buffer will be used as an OpenGL ES texture */
|
||
|
|
GRALLOC_USAGE_HW_TEXTURE = 0x00000100,
|
||
|
|
/* buffer will be used as an OpenGL ES render target */
|
||
|
|
GRALLOC_USAGE_HW_RENDER = 0x00000200,
|
||
|
|
/* buffer will be used by the 2D hardware blitter */
|
||
|
|
GRALLOC_USAGE_HW_2D = 0x00000400,
|
||
|
|
/* buffer will be used by the HWComposer HAL module */
|
||
|
|
GRALLOC_USAGE_HW_COMPOSER = 0x00000800,
|
||
|
|
/* buffer will be used with the framebuffer device */
|
||
|
|
GRALLOC_USAGE_HW_FB = 0x00001000,
|
||
|
|
|
||
|
|
/* buffer should be displayed full-screen on an external display when
|
||
|
|
* possible */
|
||
|
|
GRALLOC_USAGE_EXTERNAL_DISP = 0x00002000,
|
||
|
|
|
||
|
|
/* Must have a hardware-protected path to external display sink for
|
||
|
|
* this buffer. If a hardware-protected path is not available, then
|
||
|
|
* either don't composite only this buffer (preferred) to the
|
||
|
|
* external sink, or (less desirable) do not route the entire
|
||
|
|
* composition to the external sink. */
|
||
|
|
GRALLOC_USAGE_PROTECTED = 0x00004000,
|
||
|
|
|
||
|
|
/* buffer may be used as a cursor */
|
||
|
|
GRALLOC_USAGE_CURSOR = 0x00008000,
|
||
|
|
|
||
|
|
/* buffer will be used with the HW video encoder */
|
||
|
|
GRALLOC_USAGE_HW_VIDEO_ENCODER = 0x00010000,
|
||
|
|
/* buffer will be written by the HW camera pipeline */
|
||
|
|
GRALLOC_USAGE_HW_CAMERA_WRITE = 0x00020000,
|
||
|
|
/* buffer will be read by the HW camera pipeline */
|
||
|
|
GRALLOC_USAGE_HW_CAMERA_READ = 0x00040000,
|
||
|
|
/* buffer will be used as part of zero-shutter-lag queue */
|
||
|
|
GRALLOC_USAGE_HW_CAMERA_ZSL = 0x00060000,
|
||
|
|
/* mask for the camera access values */
|
||
|
|
GRALLOC_USAGE_HW_CAMERA_MASK = 0x00060000,
|
||
|
|
/* mask for the software usage bit-mask */
|
||
|
|
GRALLOC_USAGE_HW_MASK = 0x00071F00,
|
||
|
|
|
||
|
|
/* buffer will be used as a RenderScript Allocation */
|
||
|
|
GRALLOC_USAGE_RENDERSCRIPT = 0x00100000,
|
||
|
|
|
||
|
|
/* Set by the consumer to indicate to the producer that they may attach a
|
||
|
|
* buffer that they did not detach from the BufferQueue. Will be filtered
|
||
|
|
* out by GRALLOC_USAGE_ALLOC_MASK, so gralloc modules will not need to
|
||
|
|
* handle this flag. */
|
||
|
|
GRALLOC_USAGE_FOREIGN_BUFFERS = 0x00200000,
|
||
|
|
|
||
|
|
/* Mask of all flags which could be passed to a gralloc module for buffer
|
||
|
|
* allocation. Any flags not in this mask do not need to be handled by
|
||
|
|
* gralloc modules. */
|
||
|
|
GRALLOC_USAGE_ALLOC_MASK = ~(GRALLOC_USAGE_FOREIGN_BUFFERS),
|
||
|
|
|
||
|
|
/* implementation-specific private usage flags */
|
||
|
|
GRALLOC_USAGE_PRIVATE_0 = 0x10000000,
|
||
|
|
GRALLOC_USAGE_PRIVATE_1 = 0x20000000,
|
||
|
|
GRALLOC_USAGE_PRIVATE_2 = 0x40000000,
|
||
|
|
GRALLOC_USAGE_PRIVATE_3 = 0x80000000,
|
||
|
|
GRALLOC_USAGE_PRIVATE_MASK = 0xF0000000,
|
||
|
|
|
||
|
|
#ifdef EXYNOS4_ENHANCEMENTS
|
||
|
|
/* SAMSUNG */
|
||
|
|
GRALLOC_USAGE_PRIVATE_NONECACHE = 0x00800000,
|
||
|
|
|
||
|
|
GRALLOC_USAGE_HW_FIMC1 = 0x01000000,
|
||
|
|
GRALLOC_USAGE_HW_ION = 0x02000000,
|
||
|
|
GRALLOC_USAGE_YUV_ADDR = 0x04000000,
|
||
|
|
GRALLOC_USAGE_CAMERA = 0x08000000,
|
||
|
|
|
||
|
|
/* SEC Private usage , for Overlay path at HWC */
|
||
|
|
GRALLOC_USAGE_HWC_HWOVERLAY = 0x20000000,
|
||
|
|
#endif
|
||
|
|
};
|
||
|
|
|
||
|
|
/*****************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
|
||
|
|
* and the fields of this data structure must begin with hw_module_t
|
||
|
|
* followed by module specific information.
|
||
|
|
*/
|
||
|
|
typedef struct gralloc_module_t {
|
||
|
|
struct hw_module_t common;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* (*registerBuffer)() must be called before a buffer_handle_t that has not
|
||
|
|
* been created with (*alloc_device_t::alloc)() can be used.
|
||
|
|
*
|
||
|
|
* This is intended to be used with buffer_handle_t's that have been
|
||
|
|
* received in this process through IPC.
|
||
|
|
*
|
||
|
|
* This function checks that the handle is indeed a valid one and prepares
|
||
|
|
* it for use with (*lock)() and (*unlock)().
|
||
|
|
*
|
||
|
|
* It is not necessary to call (*registerBuffer)() on a handle created
|
||
|
|
* with (*alloc_device_t::alloc)().
|
||
|
|
*
|
||
|
|
* returns an error if this buffer_handle_t is not valid.
|
||
|
|
*/
|
||
|
|
int (*registerBuffer)(struct gralloc_module_t const* module,
|
||
|
|
buffer_handle_t handle);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* (*unregisterBuffer)() is called once this handle is no longer needed in
|
||
|
|
* this process. After this call, it is an error to call (*lock)(),
|
||
|
|
* (*unlock)(), or (*registerBuffer)().
|
||
|
|
*
|
||
|
|
* This function doesn't close or free the handle itself; this is done
|
||
|
|
* by other means, usually through libcutils's native_handle_close() and
|
||
|
|
* native_handle_free().
|
||
|
|
*
|
||
|
|
* It is an error to call (*unregisterBuffer)() on a buffer that wasn't
|
||
|
|
* explicitly registered first.
|
||
|
|
*/
|
||
|
|
int (*unregisterBuffer)(struct gralloc_module_t const* module,
|
||
|
|
buffer_handle_t handle);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The (*lock)() method is called before a buffer is accessed for the
|
||
|
|
* specified usage. This call may block, for instance if the h/w needs
|
||
|
|
* to finish rendering or if CPU caches need to be synchronized.
|
||
|
|
*
|
||
|
|
* The caller promises to modify only pixels in the area specified
|
||
|
|
* by (l,t,w,h).
|
||
|
|
*
|
||
|
|
* The content of the buffer outside of the specified area is NOT modified
|
||
|
|
* by this call.
|
||
|
|
*
|
||
|
|
* If usage specifies GRALLOC_USAGE_SW_*, vaddr is filled with the address
|
||
|
|
* of the buffer in virtual memory.
|
||
|
|
*
|
||
|
|
* Note calling (*lock)() on HAL_PIXEL_FORMAT_YCbCr_*_888 buffers will fail
|
||
|
|
* and return -EINVAL. These buffers must be locked with (*lock_ycbcr)()
|
||
|
|
* instead.
|
||
|
|
*
|
||
|
|
* THREADING CONSIDERATIONS:
|
||
|
|
*
|
||
|
|
* It is legal for several different threads to lock a buffer from
|
||
|
|
* read access, none of the threads are blocked.
|
||
|
|
*
|
||
|
|
* However, locking a buffer simultaneously for write or read/write is
|
||
|
|
* undefined, but:
|
||
|
|
* - shall not result in termination of the process
|
||
|
|
* - shall not block the caller
|
||
|
|
* It is acceptable to return an error or to leave the buffer's content
|
||
|
|
* into an indeterminate state.
|
||
|
|
*
|
||
|
|
* If the buffer was created with a usage mask incompatible with the
|
||
|
|
* requested usage flags here, -EINVAL is returned.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
int (*lock)(struct gralloc_module_t const* module,
|
||
|
|
buffer_handle_t handle, int usage,
|
||
|
|
int l, int t, int w, int h,
|
||
|
|
void** vaddr);
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The (*unlock)() method must be called after all changes to the buffer
|
||
|
|
* are completed.
|
||
|
|
*/
|
||
|
|
|
||
|
|
int (*unlock)(struct gralloc_module_t const* module,
|
||
|
|
buffer_handle_t handle);
|
||
|
|
|
||
|
|
#ifdef EXYNOS4_ENHANCEMENTS
|
||
|
|
int (*getphys) (struct gralloc_module_t const* module,
|
||
|
|
buffer_handle_t handle, void** paddr);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* reserved for future use */
|
||
|
|
int (*perform)(struct gralloc_module_t const* module,
|
||
|
|
int operation, ... );
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The (*lock_ycbcr)() method is like the (*lock)() method, with the
|
||
|
|
* difference that it fills a struct ycbcr with a description of the buffer
|
||
|
|
* layout, and zeroes out the reserved fields.
|
||
|
|
*
|
||
|
|
* If the buffer format is not compatible with a flexible YUV format (e.g.
|
||
|
|
* the buffer layout cannot be represented with the ycbcr struct), it
|
||
|
|
* will return -EINVAL.
|
||
|
|
*
|
||
|
|
* This method must work on buffers with HAL_PIXEL_FORMAT_YCbCr_*_888
|
||
|
|
* if supported by the device, as well as with any other format that is
|
||
|
|
* requested by the multimedia codecs when they are configured with a
|
||
|
|
* flexible-YUV-compatible color-format with android native buffers.
|
||
|
|
*
|
||
|
|
* Note that this method may also be called on buffers of other formats,
|
||
|
|
* including non-YUV formats.
|
||
|
|
*
|
||
|
|
* Added in GRALLOC_MODULE_API_VERSION_0_2.
|
||
|
|
*/
|
||
|
|
|
||
|
|
int (*lock_ycbcr)(struct gralloc_module_t const* module,
|
||
|
|
buffer_handle_t handle, int usage,
|
||
|
|
int l, int t, int w, int h,
|
||
|
|
struct android_ycbcr *ycbcr);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The (*lockAsync)() method is like the (*lock)() method except
|
||
|
|
* that the buffer's sync fence object is passed into the lock
|
||
|
|
* call instead of requiring the caller to wait for completion.
|
||
|
|
*
|
||
|
|
* The gralloc implementation takes ownership of the fenceFd and
|
||
|
|
* is responsible for closing it when no longer needed.
|
||
|
|
*
|
||
|
|
* Added in GRALLOC_MODULE_API_VERSION_0_3.
|
||
|
|
*/
|
||
|
|
int (*lockAsync)(struct gralloc_module_t const* module,
|
||
|
|
buffer_handle_t handle, int usage,
|
||
|
|
int l, int t, int w, int h,
|
||
|
|
void** vaddr, int fenceFd);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The (*unlockAsync)() method is like the (*unlock)() method
|
||
|
|
* except that a buffer sync fence object is returned from the
|
||
|
|
* lock call, representing the completion of any pending work
|
||
|
|
* performed by the gralloc implementation.
|
||
|
|
*
|
||
|
|
* The caller takes ownership of the fenceFd and is responsible
|
||
|
|
* for closing it when no longer needed.
|
||
|
|
*
|
||
|
|
* Added in GRALLOC_MODULE_API_VERSION_0_3.
|
||
|
|
*/
|
||
|
|
int (*unlockAsync)(struct gralloc_module_t const* module,
|
||
|
|
buffer_handle_t handle, int* fenceFd);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The (*lockAsync_ycbcr)() method is like the (*lock_ycbcr)()
|
||
|
|
* method except that the buffer's sync fence object is passed
|
||
|
|
* into the lock call instead of requiring the caller to wait for
|
||
|
|
* completion.
|
||
|
|
*
|
||
|
|
* The gralloc implementation takes ownership of the fenceFd and
|
||
|
|
* is responsible for closing it when no longer needed.
|
||
|
|
*
|
||
|
|
* Added in GRALLOC_MODULE_API_VERSION_0_3.
|
||
|
|
*/
|
||
|
|
int (*lockAsync_ycbcr)(struct gralloc_module_t const* module,
|
||
|
|
buffer_handle_t handle, int usage,
|
||
|
|
int l, int t, int w, int h,
|
||
|
|
struct android_ycbcr *ycbcr, int fenceFd);
|
||
|
|
|
||
|
|
/* reserved for future use */
|
||
|
|
void* reserved_proc[3];
|
||
|
|
} gralloc_module_t;
|
||
|
|
|
||
|
|
/*****************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Every device data structure must begin with hw_device_t
|
||
|
|
* followed by module specific public methods and attributes.
|
||
|
|
*/
|
||
|
|
|
||
|
|
typedef struct alloc_device_t {
|
||
|
|
struct hw_device_t common;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* (*alloc)() Allocates a buffer in graphic memory with the requested
|
||
|
|
* parameters and returns a buffer_handle_t and the stride in pixels to
|
||
|
|
* allow the implementation to satisfy hardware constraints on the width
|
||
|
|
* of a pixmap (eg: it may have to be multiple of 8 pixels).
|
||
|
|
* The CALLER TAKES OWNERSHIP of the buffer_handle_t.
|
||
|
|
*
|
||
|
|
* If format is HAL_PIXEL_FORMAT_YCbCr_420_888, the returned stride must be
|
||
|
|
* 0, since the actual strides are available from the android_ycbcr
|
||
|
|
* structure.
|
||
|
|
*
|
||
|
|
* Returns 0 on success or -errno on error.
|
||
|
|
*/
|
||
|
|
|
||
|
|
int (*alloc)(struct alloc_device_t* dev,
|
||
|
|
int w, int h, int format, int usage,
|
||
|
|
buffer_handle_t* handle, int* stride);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* (*free)() Frees a previously allocated buffer.
|
||
|
|
* Behavior is undefined if the buffer is still mapped in any process,
|
||
|
|
* but shall not result in termination of the program or security breaches
|
||
|
|
* (allowing a process to get access to another process' buffers).
|
||
|
|
* THIS FUNCTION TAKES OWNERSHIP of the buffer_handle_t which becomes
|
||
|
|
* invalid after the call.
|
||
|
|
*
|
||
|
|
* Returns 0 on success or -errno on error.
|
||
|
|
*/
|
||
|
|
int (*free)(struct alloc_device_t* dev,
|
||
|
|
buffer_handle_t handle);
|
||
|
|
|
||
|
|
/* This hook is OPTIONAL.
|
||
|
|
*
|
||
|
|
* If non NULL it will be caused by SurfaceFlinger on dumpsys
|
||
|
|
*/
|
||
|
|
void (*dump)(struct alloc_device_t *dev, char *buff, int buff_len);
|
||
|
|
|
||
|
|
void* reserved_proc[7];
|
||
|
|
} alloc_device_t;
|
||
|
|
|
||
|
|
|
||
|
|
/** convenience API for opening and closing a supported device */
|
||
|
|
|
||
|
|
static inline int gralloc_open(const struct hw_module_t* module,
|
||
|
|
struct alloc_device_t** device) {
|
||
|
|
return module->methods->open(module,
|
||
|
|
GRALLOC_HARDWARE_GPU0, (struct hw_device_t**)device);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int gralloc_close(struct alloc_device_t* device) {
|
||
|
|
return device->common.close(&device->common);
|
||
|
|
}
|
||
|
|
|
||
|
|
__END_DECLS
|
||
|
|
|
||
|
|
#endif // ANDROID_GRALLOC_INTERFACE_H
|