80300aa9a92f9631f90000cac0ae0a819b8c3c65
1 /*
2 * Copyright (C) 2011 Texas Instruments
3 * Author: Rob Clark <rob.clark@linaro.org>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
16 */
18 #ifndef UTIL_H_
19 #define UTIL_H_
21 #include <stdio.h>
22 #include <stdint.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <errno.h>
26 #include <unistd.h>
27 #include <assert.h>
29 #include <omap_drm.h>
30 #include <omap_drmif.h>
32 /* align x to next highest multiple of 2^n */
33 #define ALIGN2(x,n) (((x) + ((1 << (n)) - 1)) & ~((1 << (n)) - 1))
35 typedef enum {
36 false = 0,
37 true = 1
38 } bool;
40 #include "list.h"
42 /* Display Interface:
43 *
44 * Could be either KMS or X11 depending on build and
45 * environment. Some of details of opening/connecting, allocating buffers,
46 * etc, differ. The intention is just to provide as simple as possible
47 * abstraction to avoid lots of duplication in each test app to handle
48 * both cases.
49 */
51 struct buffer {
52 uint32_t fourcc, width, height;
53 int nbo;
54 struct omap_bo *bo[4];
55 uint32_t pitches[4];
56 struct list unlocked;
57 };
59 struct display {
60 int fd;
61 uint32_t width, height;
62 struct omap_device *dev;
63 struct list unlocked;
65 struct buffer ** (*get_buffers)(struct display *disp, uint32_t n);
66 struct buffer ** (*get_vid_buffers)(struct display *disp,
67 uint32_t n, uint32_t fourcc, uint32_t w, uint32_t h);
68 int (*post_buffer)(struct display *disp, struct buffer *buf);
69 int (*post_vid_buffer)(struct display *disp, struct buffer *buf,
70 uint32_t x, uint32_t y, uint32_t w, uint32_t h);
71 };
73 /* Print display related help */
74 void disp_usage(void);
76 /* Open display.. X11 or KMS depending on cmdline args, environment,
77 * and build args
78 */
79 struct display * disp_open(int argc, char **argv);
81 /* Close display */
82 void disp_close(struct display *disp);
84 /* Get normal RGB/UI buffers (ie. not scaled, not YUV) */
85 static inline struct buffer **
86 disp_get_buffers(struct display *disp, uint32_t n)
87 {
88 return disp->get_buffers(disp, n);
89 }
91 /* Get video/overlay buffers (ie. can be YUV, scaled, etc) */
92 struct buffer ** disp_get_vid_buffers(struct display *disp, uint32_t n,
93 uint32_t fourcc, uint32_t w, uint32_t h);
95 /* flip to / post the specified buffer */
96 static inline int
97 disp_post_buffer(struct display *disp, struct buffer *buf)
98 {
99 return disp->post_buffer(disp, buf);
100 }
102 /* flip to / post the specified video buffer */
103 static inline int
104 disp_post_vid_buffer(struct display *disp, struct buffer *buf,
105 uint32_t x, uint32_t y, uint32_t w, uint32_t h)
106 {
107 return disp->post_vid_buffer(disp, buf, x, y, w, h);
108 }
110 /* allocate a buffer from pool created by disp_get_vid_buffers() */
111 struct buffer * disp_get_vid_buffer(struct display *disp);
112 /* free to video buffer pool */
113 void disp_put_vid_buffer(struct display *disp, struct buffer *buf);
115 /* helper to setup the display for apps that just need video with
116 * no flipchain on the GUI layer
117 */
118 struct buffer * disp_get_fb(struct display *disp);
121 /* V4L2 utilities:
122 */
124 struct v4l2;
126 /* Print v4l2 related help */
127 void v4l2_usage(void);
129 /* Open v4l2 (and media0??) XXX */
130 struct v4l2 * v4l2_open(int argc, char **argv, uint32_t *fourcc,
131 uint32_t *width, uint32_t *height);
133 /* Share the buffers w/ v4l2 via dmabuf */
134 int v4l2_reqbufs(struct v4l2 *v4l2, struct buffer **bufs, uint32_t n);
136 int v4l2_streamon(struct v4l2 *v4l2);
137 int v4l2_streamoff(struct v4l2 *v4l2);
139 /* Queue a buffer to the camera */
140 int v4l2_qbuf(struct v4l2 *v4l2, struct buffer *buf);
142 /* Dequeue buffer from camera */
143 struct buffer * v4l2_dqbuf(struct v4l2 *v4l2);
145 /* Other utilities..
146 */
148 int check_args(int argc, char **argv);
150 void fill(struct buffer *buf, int i);
152 #define FOURCC(a, b, c, d) ((uint32_t)(uint8_t)(a) | ((uint32_t)(uint8_t)(b) << 8) | ((uint32_t)(uint8_t)(c) << 16) | ((uint32_t)(uint8_t)(d) << 24 ))
153 #define FOURCC_STR(str) FOURCC(str[0], str[1], str[2], str[3])
155 #define MSG(fmt, ...) \
156 do { fprintf(stderr, fmt "\n", ##__VA_ARGS__); } while (0)
157 #define ERROR(fmt, ...) \
158 do { fprintf(stderr, "ERROR:%s:%d: " fmt "\n", __func__, __LINE__, ##__VA_ARGS__); } while (0)
160 #ifndef container_of
161 #define container_of(ptr, type, member) \
162 (type *)((char *)(ptr) - (char *) &((type *)0)->member)
163 #endif
165 #ifndef MIN
166 # define MIN(a,b) (((a) < (b)) ? (a) : (b))
167 #endif
169 #ifndef MAX
170 # define MAX(a,b) (((a) > (b)) ? (a) : (b))
171 #endif
173 #ifndef PAGE_SHIFT
174 # define PAGE_SHIFT 12
175 #endif
177 #ifndef PAGE_SIZE
178 # define PAGE_SIZE (1 << PAGE_SHIFT)
179 #endif
181 /* align x to next highest multiple of 2^n */
182 #define ALIGN2(x,n) (((x) + ((1 << (n)) - 1)) & ~((1 << (n)) - 1))
184 #include <sys/time.h>
185 static inline long
186 mark(long *last)
187 {
188 struct timeval t;
189 gettimeofday(&t, NULL);
190 if (last) {
191 long delta = t.tv_usec - *last;
192 *last = t.tv_usec;
193 return delta;
194 }
195 return t.tv_usec;
196 }
198 #endif /* UTIL_H_ */