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-rw-r--r--overlay/include/hardware/gralloc.h273
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diff --git a/overlay/include/hardware/gralloc.h b/overlay/include/hardware/gralloc.h
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--- a/overlay/include/hardware/gralloc.h
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-/*
- * 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 <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
-
-#define GRALLOC_API_VERSION 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 never written in software */
- GRALLOC_USAGE_SW_WRITE_RARELY = 0x00000020,
- /* buffer is never 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 will be used with the HW video encoder */
- GRALLOC_USAGE_HW_VIDEO_ENCODER = 0x00010000,
- /* mask for the software usage bit-mask */
- GRALLOC_USAGE_HW_MASK = 0x00011F00,
-
- /* 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,
-
- /* 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,
-
- /* SAMSUNG */
- GRALLOC_USAGE_HW_FIMC1 = 0x01000000,
- GRALLOC_USAGE_HW_ION = 0x02000000,
- GRALLOC_USAGE_YUV_ADDR = 0x04000000,
-
- /* SEC Private usage , for Overlay path at HWC */
- GRALLOC_USAGE_HWC_HWOVERLAY = 0x20000000,
-};
-
-/*****************************************************************************/
-
-/**
- * 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.
- *
- * 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 EXYNOS4210_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, ... );
-
- /* reserved for future use */
- void* reserved_proc[7];
-} 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.
- *
- * 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