| /* |
| * Copyright (C) 2010-2011 Chia-I Wu <olvaffe@gmail.com> |
| * Copyright (C) 2010-2011 LunarG Inc. |
| * Copyright (C) 2016 Linaro, Ltd., Rob Herring <robh@kernel.org> |
| * Copyright (C) 2018 Collabora, Robert Foss <robert.foss@collabora.com> |
| * |
| * 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 __ANDROID_GRALLOC_HANDLE_H__ |
| #define __ANDROID_GRALLOC_HANDLE_H__ |
| |
| #include <cutils/native_handle.h> |
| #include <stdint.h> |
| |
| /* support users of drm_gralloc/gbm_gralloc */ |
| #define gralloc_gbm_handle_t gralloc_handle_t |
| #define gralloc_drm_handle_t gralloc_handle_t |
| |
| struct gralloc_handle_t { |
| native_handle_t base; |
| |
| /* dma-buf file descriptor |
| * Must be located first since, native_handle_t is allocated |
| * using native_handle_create(), which allocates space for |
| * sizeof(native_handle_t) + sizeof(int) * (numFds + numInts) |
| * numFds = GRALLOC_HANDLE_NUM_FDS |
| * numInts = GRALLOC_HANDLE_NUM_INTS |
| * Where numFds represents the number of FDs and |
| * numInts represents the space needed for the |
| * remainder of this struct. |
| * And the FDs are expected to be found first following |
| * native_handle_t. |
| */ |
| int prime_fd; |
| |
| /* api variables */ |
| uint32_t magic; /* differentiate between allocator impls */ |
| uint32_t version; /* api version */ |
| |
| uint32_t width; /* width of buffer in pixels */ |
| uint32_t height; /* height of buffer in pixels */ |
| uint32_t format; /* pixel format (Android) */ |
| uint32_t usage; /* android libhardware usage flags */ |
| |
| uint32_t stride; /* the stride in bytes */ |
| uint64_t modifier; /* buffer modifiers */ |
| |
| int data_owner; /* owner of data (for validation) */ |
| union { |
| void *data; /* pointer to struct gralloc_gbm_bo_t */ |
| uint64_t reserved; |
| } __attribute__((aligned(8))); |
| }; |
| |
| #define GRALLOC_HANDLE_VERSION 3 |
| #define GRALLOC_HANDLE_MAGIC 0x60585350 |
| #define GRALLOC_HANDLE_NUM_FDS 1 |
| #define GRALLOC_HANDLE_NUM_INTS ( \ |
| ((sizeof(struct gralloc_handle_t) - sizeof(native_handle_t))/sizeof(int)) \ |
| - GRALLOC_HANDLE_NUM_FDS) |
| |
| static inline struct gralloc_handle_t *gralloc_handle(buffer_handle_t handle) |
| { |
| return (struct gralloc_handle_t *)handle; |
| } |
| |
| /** |
| * Create a buffer handle. |
| */ |
| static inline native_handle_t *gralloc_handle_create(int32_t width, |
| int32_t height, |
| int32_t hal_format, |
| int32_t usage) |
| { |
| struct gralloc_handle_t *handle; |
| native_handle_t *nhandle = native_handle_create(GRALLOC_HANDLE_NUM_FDS, |
| GRALLOC_HANDLE_NUM_INTS); |
| |
| if (!nhandle) |
| return NULL; |
| |
| handle = gralloc_handle(nhandle); |
| handle->magic = GRALLOC_HANDLE_MAGIC; |
| handle->version = GRALLOC_HANDLE_VERSION; |
| handle->width = width; |
| handle->height = height; |
| handle->format = hal_format; |
| handle->usage = usage; |
| handle->prime_fd = -1; |
| |
| return nhandle; |
| } |
| |
| #endif |