1 /*
2 * Copyright (C) 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #pragma once
18
19 #include <hardware/hardware.h>
20
21 #include <cutils/native_handle.h>
22
23 #define GRALLOC_MODULE_API_VERSION_1_0 HARDWARE_MAKE_API_VERSION(1, 0)
24
25 #define GRALLOC_HARDWARE_MODULE_ID "gralloc"
26
27 enum {
28 GRALLOC1_ERROR_NONE = 0,
29 GRALLOC1_ERROR_BAD_HANDLE = 2,
30 GRALLOC1_ERROR_BAD_VALUE = 3,
31 GRALLOC1_ERROR_UNDEFINED = 6,
32 };
33
34 enum {
35 GRALLOC1_FUNCTION_LOCK = 18,
36 GRALLOC1_FUNCTION_UNLOCK = 20,
37 };
38
39 enum {
40 GRALLOC1_CONSUMER_USAGE_CPU_READ = 1ULL << 1,
41 GRALLOC1_CONSUMER_USAGE_CPU_READ_OFTEN = 1ULL << 2 | GRALLOC1_CONSUMER_USAGE_CPU_READ,
42 GRALLOC1_CONSUMER_USAGE_CPU_WRITE = 1ULL << 5,
43 GRALLOC1_CONSUMER_USAGE_CPU_WRITE_OFTEN = 1ULL << 6 | GRALLOC1_CONSUMER_USAGE_CPU_WRITE,
44 GRALLOC1_CONSUMER_USAGE_GPU_TEXTURE = 1ULL << 8,
45 };
46
47 enum {
48 GRALLOC1_PRODUCER_USAGE_CPU_READ = 1ULL << 1,
49 GRALLOC1_PRODUCER_USAGE_CPU_READ_OFTEN = 1ULL << 2 | GRALLOC1_PRODUCER_USAGE_CPU_READ,
50 GRALLOC1_PRODUCER_USAGE_CPU_WRITE = 1ULL << 5,
51 GRALLOC1_PRODUCER_USAGE_CPU_WRITE_OFTEN = 1ULL << 6 | GRALLOC1_PRODUCER_USAGE_CPU_WRITE,
52 GRALLOC1_PRODUCER_USAGE_GPU_RENDER_TARGET = 1ULL << 9,
53 };
54
55 typedef void (*gralloc1_function_pointer_t)();
56
57 struct gralloc1_rect_t {
58 int32_t left;
59 int32_t top;
60 int32_t width;
61 int32_t height;
62 };
63
64 struct gralloc1_device_t {
65 hw_device_t common;
66 void (*getCapabilities)(gralloc1_device_t*, uint32_t*, int32_t*);
67 gralloc1_function_pointer_t (*getFunction)(gralloc1_device_t*, int32_t);
68 };
69
70 typedef int32_t (*GRALLOC1_PFN_LOCK)(gralloc1_device_t*, buffer_handle_t, uint64_t, uint64_t,
71 const gralloc1_rect_t*, void**, int32_t);
72 typedef int32_t (*GRALLOC1_PFN_UNLOCK)(gralloc1_device_t*, buffer_handle_t, int32_t*);
73
gralloc1_open(const hw_module_t * module,gralloc1_device_t ** device)74 static inline int gralloc1_open(const hw_module_t* module, gralloc1_device_t** device) {
75 return module->methods->open(module, GRALLOC_HARDWARE_MODULE_ID,
76 reinterpret_cast<hw_device_t**>(device));
77 }
78