1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
// Copyright 2018 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Generated with bindgen --whitelist-function='gbm_.*' --whitelist-type='gbm_.*' minigbm/gbm.h
// Hand-modified by zachr
#![allow(dead_code)]
use std::os::raw::{c_char, c_int, c_void};
/// \file gbm.h
/// \brief Generic Buffer Manager
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct gbm_device {
_unused: [u8; 0],
}
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct gbm_bo {
_unused: [u8; 0],
}
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct gbm_surface {
_unused: [u8; 0],
}
/// Abstraction representing the handle to a buffer allocated by the
/// manager
#[repr(C)]
#[derive(Copy, Clone)]
pub union gbm_bo_handle {
pub ptr: *mut c_void,
pub s32: i32,
pub u32: u32,
pub s64: i64,
pub u64: u64,
_bindgen_union_align: u64,
}
/// Buffer is going to be presented to the screen using an API such as KMS
pub const GBM_BO_USE_SCANOUT: gbm_bo_flags = 1;
/// Buffer is going to be used as cursor
pub const GBM_BO_USE_CURSOR: gbm_bo_flags = 2;
/// Deprecated
pub const GBM_BO_USE_CURSOR_64X64: gbm_bo_flags = 2;
/// Buffer is to be used for rendering - for example it is going to be used
/// as the storage for a color buffer
pub const GBM_BO_USE_RENDERING: gbm_bo_flags = 4;
/// Deprecated
pub const GBM_BO_USE_WRITE: gbm_bo_flags = 8;
/// Buffer is guaranteed to be laid out linearly in memory. That is, the
/// buffer is laid out as an array with 'height' blocks, each block with
/// length 'stride'. Each stride is in the same order as the rows of the
/// buffer. This is intended to be used with buffers that will be accessed
/// via dma-buf mmap().
pub const GBM_BO_USE_LINEAR: gbm_bo_flags = 16;
/// The buffer will be used as a texture that will be sampled from.
pub const GBM_BO_USE_TEXTURING: gbm_bo_flags = 32;
/// The buffer will be written to by a camera subsystem.
pub const GBM_BO_USE_CAMERA_WRITE: gbm_bo_flags = 64;
/// The buffer will be read from by a camera subsystem.
pub const GBM_BO_USE_CAMERA_READ: gbm_bo_flags = 128;
/// Buffer inaccessible to unprivileged users.
pub const GBM_BO_USE_PROTECTED: gbm_bo_flags = 256;
/// These flags specify the frequency of software access. These flags do not
/// guarantee the buffer is linear, but do guarantee gbm_bo_map(..) will
/// present a linear view.
pub const GBM_BO_USE_SW_READ_OFTEN: gbm_bo_flags = 512;
/// These flags specify the frequency of software access. These flags do not
/// guarantee the buffer is linear, but do guarantee gbm_bo_map(..) will
/// present a linear view.
pub const GBM_BO_USE_SW_READ_RARELY: gbm_bo_flags = 1024;
/// These flags specify the frequency of software access. These flags do not
/// guarantee the buffer is linear, but do guarantee gbm_bo_map(..) will
/// present a linear view.
pub const GBM_BO_USE_SW_WRITE_OFTEN: gbm_bo_flags = 2048;
/// These flags specify the frequency of software access. These flags do not
/// guarantee the buffer is linear, but do guarantee gbm_bo_map(..) will
/// present a linear view.
pub const GBM_BO_USE_SW_WRITE_RARELY: gbm_bo_flags = 4096;
/// Flags to indicate the intended use for the buffer - these are passed into
/// gbm_bo_create(). The caller must set the union of all the flags that are
/// appropriate
///
/// \sa Use gbm_device_is_format_supported() to check if the combination of format
/// and use flags are supported
#[allow(non_camel_case_types)]
pub type gbm_bo_flags = u32;
#[link(name = "gbm")]
extern "C" {
pub fn gbm_device_get_fd(gbm: *mut gbm_device) -> c_int;
pub fn gbm_device_get_backend_name(gbm: *mut gbm_device) -> *const c_char;
pub fn gbm_device_is_format_supported(gbm: *mut gbm_device, format: u32, usage: u32) -> c_int;
pub fn gbm_device_destroy(gbm: *mut gbm_device);
pub fn gbm_create_device(fd: c_int) -> *mut gbm_device;
pub fn gbm_bo_create(
gbm: *mut gbm_device,
width: u32,
height: u32,
format: u32,
flags: u32,
) -> *mut gbm_bo;
pub fn gbm_bo_create_with_modifiers(
gbm: *mut gbm_device,
width: u32,
height: u32,
format: u32,
modifiers: *const u64,
count: u32,
) -> *mut gbm_bo;
}
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct gbm_import_fd_data {
pub fd: c_int,
pub width: u32,
pub height: u32,
pub stride: u32,
pub format: u32,
}
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct gbm_import_fd_planar_data {
pub fds: [c_int; 4usize],
pub width: u32,
pub height: u32,
pub format: u32,
pub strides: [u32; 4usize],
pub offsets: [u32; 4usize],
pub format_modifiers: [u64; 4usize],
}
extern "C" {
pub fn gbm_bo_import(
gbm: *mut gbm_device,
type_: u32,
buffer: *mut c_void,
usage: u32,
) -> *mut gbm_bo;
}
/// Buffer contents read back (or accessed directly) at transfer
/// create time.
pub const GBM_BO_TRANSFER_READ: gbm_bo_transfer_flags = 1;
/// Buffer contents will be written back at unmap time
/// (or modified as a result of being accessed directly).
pub const GBM_BO_TRANSFER_WRITE: gbm_bo_transfer_flags = 2;
/// Read/modify/write
pub const GBM_BO_TRANSFER_READ_WRITE: gbm_bo_transfer_flags = 3;
/// Flags to indicate the type of mapping for the buffer - these are
/// passed into gbm_bo_map(). The caller must set the union of all the
/// flags that are appropriate.
///
/// These flags are independent of the GBM_BO_USE_* creation flags. However,
/// mapping the buffer may require copying to/from a staging buffer.
///
/// See also: pipe_transfer_usage
#[allow(non_camel_case_types)]
pub type gbm_bo_transfer_flags = u32;
extern "C" {
pub fn gbm_bo_map(
bo: *mut gbm_bo,
x: u32,
y: u32,
width: u32,
height: u32,
flags: u32,
stride: *mut u32,
map_data: *mut *mut c_void,
plane: usize,
) -> *mut c_void;
pub fn gbm_bo_unmap(bo: *mut gbm_bo, map_data: *mut c_void);
pub fn gbm_bo_get_width(bo: *mut gbm_bo) -> u32;
pub fn gbm_bo_get_height(bo: *mut gbm_bo) -> u32;
pub fn gbm_bo_get_stride(bo: *mut gbm_bo) -> u32;
pub fn gbm_bo_get_stride_or_tiling(bo: *mut gbm_bo) -> u32;
pub fn gbm_bo_get_format(bo: *mut gbm_bo) -> u32;
pub fn gbm_bo_get_modifier(bo: *mut gbm_bo) -> u64;
pub fn gbm_bo_get_device(bo: *mut gbm_bo) -> *mut gbm_device;
pub fn gbm_bo_get_handle(bo: *mut gbm_bo) -> gbm_bo_handle;
pub fn gbm_bo_get_fd(bo: *mut gbm_bo) -> c_int;
pub fn gbm_bo_get_plane_count(bo: *mut gbm_bo) -> usize;
pub fn gbm_bo_get_handle_for_plane(bo: *mut gbm_bo, plane: usize) -> gbm_bo_handle;
pub fn gbm_bo_get_plane_fd(bo: *mut gbm_bo, plane: usize) -> c_int;
pub fn gbm_bo_get_offset(bo: *mut gbm_bo, plane: usize) -> u32;
pub fn gbm_bo_get_plane_size(bo: *mut gbm_bo, plane: usize) -> u32;
pub fn gbm_bo_get_stride_for_plane(bo: *mut gbm_bo, plane: usize) -> u32;
pub fn gbm_bo_get_plane_format_modifier(bo: *mut gbm_bo, plane: usize) -> u64;
// Did not generate cleanly by bindgen. Redone manually by zachr.
pub fn gbm_bo_set_user_data(
bo: *mut gbm_bo,
data: *mut c_void,
destroy_user_data: extern "C" fn(bo: *mut gbm_bo, data: *mut c_void),
);
pub fn gbm_bo_get_user_data(bo: *mut gbm_bo) -> *mut c_void;
pub fn gbm_bo_destroy(bo: *mut gbm_bo);
pub fn gbm_surface_create(
gbm: *mut gbm_device,
width: u32,
height: u32,
format: u32,
flags: u32,
) -> *mut gbm_surface;
pub fn gbm_surface_lock_front_buffer(surface: *mut gbm_surface) -> *mut gbm_bo;
pub fn gbm_surface_release_buffer(surface: *mut gbm_surface, bo: *mut gbm_bo);
pub fn gbm_surface_has_free_buffers(surface: *mut gbm_surface) -> c_int;
pub fn gbm_surface_destroy(surface: *mut gbm_surface);
}
|