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Diffstat (limited to 'overlay/include/hardware/gralloc.h')
| -rw-r--r-- | overlay/include/hardware/gralloc.h | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/overlay/include/hardware/gralloc.h b/overlay/include/hardware/gralloc.h deleted file mode 100644 index 8c4ac1b..0000000 --- a/overlay/include/hardware/gralloc.h +++ /dev/null @@ -1,273 +0,0 @@ -/* - * 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 |