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/* Copyright (c) Imagination Technologies Ltd.
*
* The contents of this file are subject to the MIT license as set out below.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef HAL_PUBLIC_H
#define HAL_PUBLIC_H
/* Authors of third party hardware composer (HWC) modules will need to include
* this header to access functionality in the gralloc and framebuffer HALs.
*/
#include <hardware/gralloc.h>
#define ALIGN(x,a) (((x) + (a) - 1L) & ~((a) - 1L))
#define HW_ALIGN 32
/* This can be tuned down as appropriate for the SOC.
*
* IMG formats are usually a single sub-alloc.
* Some OEM video formats are two sub-allocs (Y, UV planes).
* Future OEM video formats might be three sub-allocs (Y, U, V planes).
*/
#define MAX_SUB_ALLOCS 3
typedef struct
{
native_handle_t base;
/* These fields can be sent cross process. They are also valid
* to duplicate within the same process.
*
* A table is stored within psPrivateData on gralloc_module_t (this
* is obviously per-process) which maps stamps to a mapped
* PVRSRV_CLIENT_MEM_INFO in that process. Each map entry has a lock
* count associated with it, satisfying the requirements of the
* Android API. This also prevents us from leaking maps/allocations.
*
* This table has entries inserted either by alloc()
* (alloc_device_t) or map() (gralloc_module_t). Entries are removed
* by free() (alloc_device_t) and unmap() (gralloc_module_t).
*
* As a special case for framebuffer_device_t, framebuffer_open()
* will add and framebuffer_close() will remove from this table.
*/
#define IMG_NATIVE_HANDLE_NUMFDS MAX_SUB_ALLOCS
/* The `fd' field is used to "export" a meminfo to another process.
* Therefore, it is allocated by alloc_device_t, and consumed by
* gralloc_module_t. The framebuffer_device_t does not need a handle,
* and the special value IMG_FRAMEBUFFER_FD is used instead.
*/
int fd[MAX_SUB_ALLOCS];
#define IMG_NATIVE_HANDLE_NUMINTS ((sizeof(unsigned long long) / sizeof(int)) + 5)
/* A KERNEL unique identifier for any exported kernel meminfo. Each
* exported kernel meminfo will have a unique stamp, but note that in
* userspace, several meminfos across multiple processes could have
* the same stamp. As the native_handle can be dup(2)'d, there could be
* multiple handles with the same stamp but different file descriptors.
*/
unsigned long long ui64Stamp;
/* This is used for buffer usage validation when locking a buffer,
* and also in WSEGL (for the composition bypass feature).
*/
int usage;
/* In order to do efficient cache flushes we need the buffer dimensions
* and format. These are available on the ANativeWindowBuffer,
* but the platform doesn't pass them down to the graphics HAL.
*
* These fields are also used in the composition bypass. In this
* capacity, these are the "real" values for the backing allocation.
*/
int iWidth;
int iHeight;
int iFormat;
unsigned int uiBpp;
}
__attribute__((aligned(sizeof(int)),packed)) IMG_native_handle_t;
typedef struct
{
framebuffer_device_t base;
/* The HWC was loaded. post() is no longer responsible for presents */
int bBypassPost;
/* HWC path for present posts */
int (*Post2)(framebuffer_device_t *fb, buffer_handle_t *buffers,
int num_buffers, void *data, int data_length);
}
IMG_framebuffer_device_public_t;
typedef struct IMG_gralloc_module_public_t
{
gralloc_module_t base;
/* If the framebuffer has been opened, this will point to the
* framebuffer device data required by the allocator, WSEGL
* modules and composerhal.
*/
IMG_framebuffer_device_public_t *psFrameBufferDevice;
int (*GetPhyAddrs)(struct IMG_gralloc_module_public_t const* module,
buffer_handle_t handle,
unsigned int auiPhyAddr[MAX_SUB_ALLOCS]);
/* Custom-blit components in lieu of overlay hardware */
int (*Blit)(struct IMG_gralloc_module_public_t const *module,
buffer_handle_t src,
void *dest[MAX_SUB_ALLOCS], int format);
int (*Blit2)(struct IMG_gralloc_module_public_t const *module,
buffer_handle_t src, buffer_handle_t dest,
int w, int h, int x, int y);
}
IMG_gralloc_module_public_t;
typedef struct
{
int l, t, w, h;
}
IMG_write_lock_rect_t;
typedef struct IMG_buffer_format_public_t
{
/* Buffer formats are returned as a linked list */
struct IMG_buffer_format_public_t *psNext;
/* HAL_PIXEL_FORMAT_... enumerant */
int iHalPixelFormat;
/* WSEGL_PIXELFORMAT_... enumerant */
int iWSEGLPixelFormat;
/* Friendly name for format */
const char *const szName;
/* Bits (not bytes) per pixel */
unsigned int uiBpp;
/* GPU output format (creates EGLConfig for format) */
int bGPURenderable;
}
IMG_buffer_format_public_t;
#endif /* HAL_PUBLIC_H */
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