758b08fb60ac50c270e4d3292f44d72c82162254
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 #ifdef HAVE_CONFIG_H
19 #include "config.h"
20 #endif
22 #include "util.h"
24 #include <X11/Xlib.h>
25 #include <X11/Xmd.h>
26 #include <X11/Xregion.h>
27 #include <X11/extensions/dri2proto.h>
28 #include <X11/extensions/dri2.h>
30 #include <sys/types.h>
31 #include <sys/stat.h>
32 #include <fcntl.h>
34 static int global_fd = 0;
36 #define to_display_x11(x) container_of(x, struct display_x11, base)
37 struct display_x11 {
38 struct display base;
39 Display *dpy;
40 Window win;
41 };
43 #define to_buffer_x11(x) container_of(x, struct buffer_x11, base)
44 struct buffer_x11 {
45 struct buffer base;
46 DRI2Buffer *dri2buf;
47 };
50 #define MAX_BUFFERS 32
52 static struct buffer **
53 get_buffers(struct display *disp, uint32_t n)
54 {
55 ERROR("unimplemented");
56 return NULL;
57 }
59 static struct buffer **
60 get_vid_buffers(struct display *disp, uint32_t n,
61 uint32_t fourcc, uint32_t w, uint32_t h)
62 {
63 struct display_x11 *disp_x11 = to_display_x11(disp);
64 struct buffer **bufs;
65 unsigned attachments[MAX_BUFFERS+1] = {
66 DRI2BufferFrontLeft, 32, /* always requested, never returned */
67 };
68 DRI2Buffer *dri2bufs;
69 uint32_t i, j, nbufs = 1;
71 for (i = 0; i < n; i++) {
72 attachments[ nbufs * 2 ] = i + 1;
73 attachments[(nbufs * 2) + 1] = fourcc;
74 nbufs++;
75 }
77 dri2bufs = DRI2GetBuffersVid(disp_x11->dpy, disp_x11->win,
78 w, h, attachments, nbufs, &nbufs);
79 if (!dri2bufs) {
80 ERROR("DRI2GetBuffersVid failed");
81 return NULL;
82 }
84 MSG("DRI2GetBuffers: nbufs=%d", nbufs);
86 if (nbufs != n) {
87 ERROR("wrong number of bufs: %d vs %d", nbufs, n);
88 return NULL;
89 }
91 bufs = calloc(nbufs, sizeof(struct buffer *));
93 for (i = 0; i < nbufs; i++) {
94 struct buffer *buf;
95 struct buffer_x11 *buf_x11;
97 buf_x11 = calloc(1, sizeof(*buf_x11));
98 if (!buf_x11) {
99 ERROR("allocation failed");
100 return NULL;
101 }
103 buf_x11->dri2buf = &dri2bufs[i];
105 buf = &buf_x11->base;
107 buf->fourcc = fourcc;
108 buf->width = w;
109 buf->height = h;
111 for (j = 0; dri2bufs[i].names[j]; j++) {
112 buf->bo[j] = omap_bo_from_name(disp->dev, dri2bufs[i].names[j]);
113 }
114 buf->nbo = j;
116 bufs[i] = buf;
117 }
119 return bufs;
120 }
122 static int
123 post_buffer(struct display *disp, struct buffer *buf)
124 {
125 MSG("unimplemented");
126 return -1;
127 }
129 static int
130 post_vid_buffer(struct display *disp, struct buffer *buf,
131 uint32_t x, uint32_t y, uint32_t w, uint32_t h)
132 {
133 struct display_x11 *disp_x11 = to_display_x11(disp);
134 struct buffer_x11 *buf_x11 = to_buffer_x11(buf);
135 CARD64 count;
136 BoxRec b = {
137 .x1 = x,
138 .y1 = y,
139 .x2 = x + w,
140 .y2 = y + h,
141 };
143 DRI2SwapBuffersVid(disp_x11->dpy, disp_x11->win, 0, 0, 0, &count,
144 buf_x11->dri2buf->attachment, &b);
145 MSG("DRI2SwapBuffersVid[%u]: count=%llu",
146 buf_x11->dri2buf->attachment, count);
148 return 0;
149 }
151 void
152 disp_x11_usage(void)
153 {
154 MSG("X11 Display Options:");
155 MSG("\t-w WxH\tset window dimensions");
156 }
158 /*** Move these somewhere common ***/
159 #include <ctype.h>
160 static Bool is_fourcc(unsigned int val)
161 {
162 char *str = (char *)&val;
163 return isalnum(str[0]) && isalnum(str[1]) && isalnum(str[2]) && isalnum(str[3]);
164 }
165 #define ATOM(name) XInternAtom(dpy, name, False)
166 static inline void print_hex(int len, const unsigned char *val)
167 {
168 char buf[33];
169 int i, j;
170 for (i = 0; i < len; i += j) {
171 for (j = 0; (j < 16) && ((i + j) < len); ++j)
172 sprintf(&buf[j * 2], "%02x", val[i + j]);
173 fprintf(stderr, "\t%s\n", buf);
174 }
175 }
176 /***********************************/
179 static Bool WireToEvent(Display *dpy, XExtDisplayInfo *info,
180 XEvent *event, xEvent *wire)
181 {
182 switch ((wire->u.u.type & 0x7f) - info->codes->first_event) {
184 case DRI2_BufferSwapComplete:
185 {
186 // xDRI2BufferSwapComplete *awire = (xDRI2BufferSwapComplete *)wire;
187 MSG("BufferSwapComplete");
188 return True;
189 }
190 default:
191 /* client doesn't support server event */
192 break;
193 }
195 return False;
196 }
198 static Status EventToWire(Display *dpy, XExtDisplayInfo *info,
199 XEvent *event, xEvent *wire)
200 {
201 switch (event->type) {
202 default:
203 /* client doesn't support server event */
204 break;
205 }
207 return Success;
208 }
210 static const DRI2EventOps ops = {
211 .WireToEvent = WireToEvent,
212 .EventToWire = EventToWire,
213 };
215 struct display *
216 disp_x11_open(int argc, char **argv)
217 {
218 struct display_x11 *disp_x11 = NULL;
219 struct display *disp;
220 Display *dpy;
221 Window root, win;
222 drm_magic_t magic;
223 int eventBase, errorBase, major, minor;
224 char *driver, *device;
225 unsigned int nformats, *formats;
226 unsigned int i, width = 500, height = 500;
227 CARD32 *pval;
229 MSG("attempting to open X11 connection");
230 dpy = XOpenDisplay(NULL);
231 if (!dpy) {
232 ERROR("Could not open display");
233 goto no_x11;
234 }
236 if (!DRI2InitDisplay(dpy, &ops)) {
237 ERROR("DRI2InitDisplay failed");
238 goto no_x11;
239 }
241 if (!DRI2QueryExtension(dpy, &eventBase, &errorBase)) {
242 ERROR("DRI2QueryExtension failed");
243 goto no_x11;
244 }
246 MSG("DRI2QueryExtension: eventBase=%d, errorBase=%d", eventBase, errorBase);
248 if (!DRI2QueryVersion(dpy, &major, &minor)) {
249 ERROR("DRI2QueryVersion failed");
250 goto no_x11;
251 }
253 MSG("DRI2QueryVersion: major=%d, minor=%d", major, minor);
255 root = RootWindow(dpy, DefaultScreen(dpy));
257 if (!DRI2Connect(dpy, root, DRI2DriverDRI, &driver, &device)) {
258 MSG("DRI2Connect failed");
259 goto no_x11;
260 }
262 MSG("DRI2Connect: driver=%s, device=%s", driver, device);
264 disp_x11 = calloc(1, sizeof(*disp_x11));
265 if (!disp_x11) {
266 ERROR("allocation failed");
267 goto no_x11;
268 }
270 disp = &disp_x11->base;
272 if (!global_fd) {
273 MSG("opening device: %s", device);
274 global_fd = open(device, O_RDWR);
275 if (global_fd < 0) {
276 ERROR("could not open drm device: %s (%d)",
277 strerror(errno), errno);
278 goto no_x11_free;
279 }
281 if (drmGetMagic(global_fd, &magic)) {
282 ERROR("drmGetMagic failed");
283 goto no_x11_free;
284 }
286 if (!DRI2Authenticate(dpy, root, magic)) {
287 ERROR("DRI2Authenticate failed");
288 goto no_x11_free;
289 }
290 }
292 disp->fd = global_fd;
294 disp->dev = omap_device_new(disp->fd);
295 if (!disp->dev) {
296 ERROR("couldn't create device");
297 goto no_x11_free;
298 }
300 disp->get_buffers = get_buffers;
301 disp->get_vid_buffers = get_vid_buffers;
302 disp->post_buffer = post_buffer;
303 disp->post_vid_buffer = post_vid_buffer;
305 /* note: set args to NULL after we've parsed them so other modules know
306 * that it is already parsed (since the arg parsing is decentralized)
307 */
308 for (i = 1; i < argc; i++) {
309 if (!argv[i]) {
310 continue;
311 }
312 if (!strcmp("-w", argv[i])) {
313 argv[i++] = NULL;
314 if (sscanf(argv[i], "%dx%d", &width, &height) != 2) {
315 ERROR("invalid arg: %s", argv[i]);
316 goto no_x11_free;
317 }
318 } else {
319 /* ignore */
320 continue;
321 }
322 argv[i] = NULL;
323 }
325 win = XCreateSimpleWindow(dpy, RootWindow(dpy, 0), 1, 1,
326 width, height, 0, BlackPixel (dpy, 0), BlackPixel(dpy, 0));
327 XMapWindow(dpy, win);
328 XFlush(dpy);
330 disp_x11->dpy = dpy;
331 disp_x11->win = win;
333 if (!DRI2GetFormats(dpy, RootWindow(dpy, DefaultScreen(dpy)),
334 &nformats, &formats)) {
335 ERROR("DRI2GetFormats failed");
336 goto no_x11_free;
337 }
339 if (nformats == 0) {
340 ERROR("no formats!");
341 goto no_x11_free;
342 }
344 /* print out supported formats */
345 MSG("Found %d supported formats:", nformats);
346 for (i = 0; i < nformats; i++) {
347 if (is_fourcc(formats[i])) {
348 MSG(" %d: %08x (\"%.4s\")", i, formats[i], (char *)&formats[i]);
349 } else {
350 MSG(" %d: %08x (device dependent)", i, formats[i]);
351 }
352 }
354 DRI2CreateDrawable(dpy, win);
356 /* check some attribute.. just to exercise the code-path: */
357 if (!DRI2GetAttribute(dpy, win, ATOM("XV_CSC_MATRIX"), &i, &pval)) {
358 ERROR("DRI2GetAttribute failed");
359 goto no_x11_free;
360 }
362 MSG("Got CSC matrix:");
363 print_hex(i*4, (const unsigned char *)pval);
365 // XXX
367 return disp;
369 no_x11_free:
370 XFree(driver);
371 XFree(device);
372 no_x11:
373 ERROR("unimplemented");
374 return NULL;
375 }