Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 1 | #include <stdint.h> |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 2 | #include <stdio.h> |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 3 | #include <stdlib.h> |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 4 | #include <string.h> |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 5 | #include <i915_drm.h> |
| 6 | #include <sys/ioctl.h> |
Kristian Høgsberg | 427524a | 2008-10-08 13:32:07 -0400 | [diff] [blame] | 7 | #include <sys/poll.h> |
Kristian Høgsberg | d3fa34c | 2008-11-02 15:28:22 -0500 | [diff] [blame^] | 8 | #include <sys/timerfd.h> |
| 9 | #include <time.h> |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 10 | #include <fcntl.h> |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 11 | #include <unistd.h> |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 12 | #include <math.h> |
Kristian Høgsberg | a234e70 | 2008-10-11 22:13:51 -0400 | [diff] [blame] | 13 | #include <time.h> |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 14 | #include <cairo.h> |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 15 | |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 16 | #include "wayland-client.h" |
| 17 | |
| 18 | static const char gem_device[] = "/dev/dri/card0"; |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 19 | static const char socket_name[] = "\0wayland"; |
| 20 | |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 21 | static uint32_t name_cairo_surface(int fd, cairo_surface_t *surface) |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 22 | { |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 23 | struct drm_i915_gem_create create; |
| 24 | struct drm_gem_flink flink; |
| 25 | struct drm_i915_gem_pwrite pwrite; |
| 26 | int32_t width, height, stride; |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 27 | |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 28 | width = cairo_image_surface_get_width(surface); |
| 29 | height = cairo_image_surface_get_height(surface); |
| 30 | stride = cairo_image_surface_get_stride(surface); |
| 31 | |
| 32 | memset(&create, 0, sizeof(create)); |
| 33 | create.size = height * stride; |
| 34 | |
| 35 | if (ioctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create) != 0) { |
| 36 | fprintf(stderr, "gem create failed: %m\n"); |
| 37 | return 0; |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 38 | } |
| 39 | |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 40 | pwrite.handle = create.handle; |
| 41 | pwrite.offset = 0; |
| 42 | pwrite.size = height * stride; |
| 43 | pwrite.data_ptr = (uint64_t) (uintptr_t) |
| 44 | cairo_image_surface_get_data(surface); |
| 45 | if (ioctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &pwrite) < 0) { |
| 46 | fprintf(stderr, "gem pwrite failed: %m\n"); |
| 47 | return 0; |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 48 | } |
| 49 | |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 50 | flink.handle = create.handle; |
| 51 | if (ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink) != 0) { |
| 52 | fprintf(stderr, "gem flink failed: %m\n"); |
| 53 | return 0; |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 54 | } |
| 55 | |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 56 | #if 0 |
| 57 | /* We need to hold on to the handle until the server has received |
| 58 | * the attach request... we probably need a confirmation event. |
| 59 | * I guess the breadcrumb idea will suffice. */ |
| 60 | struct drm_gem_close close; |
| 61 | close.handle = create.handle; |
| 62 | if (ioctl(fd, DRM_IOCTL_GEM_CLOSE, &close) < 0) { |
| 63 | fprintf(stderr, "gem close failed: %m\n"); |
| 64 | return 0; |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 65 | } |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 66 | #endif |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 67 | |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 68 | return flink.name; |
| 69 | } |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 70 | |
Kristian Høgsberg | a234e70 | 2008-10-11 22:13:51 -0400 | [diff] [blame] | 71 | static void |
| 72 | set_random_color(cairo_t *cr) |
| 73 | { |
| 74 | cairo_set_source_rgba(cr, |
Kristian Høgsberg | d311e8a | 2008-10-12 22:58:40 -0400 | [diff] [blame] | 75 | 0.5 + (random() % 50) / 49.0, |
| 76 | 0.5 + (random() % 50) / 49.0, |
| 77 | 0.5 + (random() % 50) / 49.0, |
| 78 | 0.5 + (random() % 100) / 99.0); |
Kristian Høgsberg | a234e70 | 2008-10-11 22:13:51 -0400 | [diff] [blame] | 79 | } |
| 80 | |
| 81 | |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 82 | static void * |
| 83 | draw_stuff(int width, int height) |
| 84 | { |
Kristian Høgsberg | a234e70 | 2008-10-11 22:13:51 -0400 | [diff] [blame] | 85 | const int petal_count = 3 + random() % 5; |
| 86 | const double r1 = 60 + random() % 35; |
| 87 | const double r2 = 20 + random() % 40; |
| 88 | const double u = (10 + random() % 90) / 100.0; |
| 89 | const double v = (random() % 90) / 100.0; |
| 90 | |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 91 | cairo_surface_t *surface; |
| 92 | cairo_t *cr; |
Kristian Høgsberg | a234e70 | 2008-10-11 22:13:51 -0400 | [diff] [blame] | 93 | int i; |
| 94 | double t, dt = 2 * M_PI / (petal_count * 2); |
| 95 | double x1, y1, x2, y2, x3, y3; |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 96 | |
| 97 | surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24, |
| 98 | width, height); |
| 99 | |
| 100 | cr = cairo_create(surface); |
Kristian Høgsberg | a234e70 | 2008-10-11 22:13:51 -0400 | [diff] [blame] | 101 | cairo_translate(cr, width / 2, height / 2); |
| 102 | cairo_move_to(cr, cos(t) * r1, sin(t) * r1); |
| 103 | for (t = 0, i = 0; i < petal_count; i++, t += dt * 2) { |
| 104 | x1 = cos(t) * r1; |
| 105 | y1 = sin(t) * r1; |
| 106 | x2 = cos(t + dt) * r2; |
| 107 | y2 = sin(t + dt) * r2; |
| 108 | x3 = cos(t + 2 * dt) * r1; |
| 109 | y3 = sin(t + 2 * dt) * r1; |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 110 | |
Kristian Høgsberg | a234e70 | 2008-10-11 22:13:51 -0400 | [diff] [blame] | 111 | cairo_curve_to(cr, |
| 112 | x1 - y1 * u, y1 + x1 * u, |
| 113 | x2 + y2 * v, y2 - x2 * v, |
| 114 | x2, y2); |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 115 | |
Kristian Høgsberg | a234e70 | 2008-10-11 22:13:51 -0400 | [diff] [blame] | 116 | cairo_curve_to(cr, |
| 117 | x2 - y2 * v, y2 + x2 * v, |
| 118 | x3 + y3 * u, y3 - x3 * u, |
| 119 | x3, y3); |
| 120 | } |
| 121 | |
| 122 | cairo_close_path(cr); |
| 123 | set_random_color(cr); |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 124 | cairo_fill_preserve(cr); |
Kristian Høgsberg | a234e70 | 2008-10-11 22:13:51 -0400 | [diff] [blame] | 125 | set_random_color(cr); |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 126 | cairo_stroke(cr); |
| 127 | |
| 128 | cairo_destroy(cr); |
| 129 | |
| 130 | return surface; |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 131 | } |
| 132 | |
Kristian Høgsberg | 427524a | 2008-10-08 13:32:07 -0400 | [diff] [blame] | 133 | static int |
| 134 | connection_update(struct wl_connection *connection, |
| 135 | uint32_t mask, void *data) |
| 136 | { |
| 137 | struct pollfd *p = data; |
| 138 | |
| 139 | p->events = 0; |
| 140 | if (mask & WL_CONNECTION_READABLE) |
| 141 | p->events |= POLLIN; |
| 142 | if (mask & WL_CONNECTION_WRITABLE) |
| 143 | p->events |= POLLOUT; |
| 144 | |
| 145 | return 0; |
| 146 | } |
| 147 | |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 148 | int main(int argc, char *argv[]) |
| 149 | { |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 150 | struct wl_display *display; |
| 151 | struct wl_surface *surface; |
Kristian Høgsberg | f921289 | 2008-10-11 18:40:23 -0400 | [diff] [blame] | 152 | const int x = 200, y = 200, width = 200, height = 200; |
Kristian Høgsberg | 427524a | 2008-10-08 13:32:07 -0400 | [diff] [blame] | 153 | int fd, i, ret; |
| 154 | uint32_t name, mask; |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 155 | cairo_surface_t *s; |
Kristian Høgsberg | d3fa34c | 2008-11-02 15:28:22 -0500 | [diff] [blame^] | 156 | struct pollfd p[2]; |
| 157 | struct timespec ts; |
| 158 | struct itimerspec its; |
| 159 | uint64_t expires; |
Kristian Høgsberg | a234e70 | 2008-10-11 22:13:51 -0400 | [diff] [blame] | 160 | |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 161 | fd = open(gem_device, O_RDWR); |
| 162 | if (fd < 0) { |
| 163 | fprintf(stderr, "drm open failed: %m\n"); |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 164 | return -1; |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 165 | } |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 166 | |
Kristian Høgsberg | 427524a | 2008-10-08 13:32:07 -0400 | [diff] [blame] | 167 | display = wl_display_create(socket_name, |
| 168 | connection_update, &p[0]); |
| 169 | if (display == NULL) { |
| 170 | fprintf(stderr, "failed to create display: %m\n"); |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 171 | return -1; |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 172 | } |
Kristian Høgsberg | 427524a | 2008-10-08 13:32:07 -0400 | [diff] [blame] | 173 | p[0].fd = wl_display_get_fd(display); |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 174 | |
| 175 | surface = wl_display_create_surface(display); |
| 176 | |
Kristian Høgsberg | d3fa34c | 2008-11-02 15:28:22 -0500 | [diff] [blame^] | 177 | p[1].fd = timerfd_create(CLOCK_MONOTONIC, 0); |
| 178 | if (p[1].fd < 0) { |
| 179 | fprintf(stderr, "could not create timerfd\n: %m"); |
| 180 | return -1; |
| 181 | } |
| 182 | |
| 183 | p[1].events = POLLIN; |
| 184 | clock_gettime(CLOCK_MONOTONIC, &ts); |
| 185 | its.it_value = ts; |
| 186 | its.it_interval.tv_sec = 0; |
| 187 | its.it_interval.tv_nsec = 20 * 1000000; |
| 188 | if (timerfd_settime(p[1].fd, TFD_TIMER_ABSTIME, &its, NULL) < 0) { |
| 189 | fprintf(stderr, "could not set timerfd\n: %m"); |
| 190 | return -1; |
| 191 | } |
| 192 | |
| 193 | srandom(ts.tv_nsec); |
| 194 | |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 195 | s = draw_stuff(width, height); |
| 196 | name = name_cairo_surface(fd, s); |
| 197 | |
| 198 | wl_surface_attach(surface, name, width, height, |
| 199 | cairo_image_surface_get_stride(s)); |
| 200 | |
Kristian Høgsberg | 427524a | 2008-10-08 13:32:07 -0400 | [diff] [blame] | 201 | i = 0; |
Kristian Høgsberg | d3fa34c | 2008-11-02 15:28:22 -0500 | [diff] [blame^] | 202 | while (ret = poll(p, 2, -1), ret >= 0) { |
| 203 | if (p[1].revents & POLLIN) { |
| 204 | read(p[1].fd, &expires, sizeof expires); |
Kristian Høgsberg | 16eb675 | 2008-10-08 22:51:32 -0400 | [diff] [blame] | 205 | wl_surface_map(surface, |
Kristian Høgsberg | a234e70 | 2008-10-11 22:13:51 -0400 | [diff] [blame] | 206 | x + cos(i / 30.0) * 200, |
| 207 | y + sin(i / 31.0) * 200, |
Kristian Høgsberg | 16eb675 | 2008-10-08 22:51:32 -0400 | [diff] [blame] | 208 | width, height); |
Kristian Høgsberg | 427524a | 2008-10-08 13:32:07 -0400 | [diff] [blame] | 209 | i++; |
| 210 | continue; |
| 211 | } |
Kristian Høgsberg | a67a71a | 2008-10-07 10:10:36 -0400 | [diff] [blame] | 212 | |
Kristian Høgsberg | 427524a | 2008-10-08 13:32:07 -0400 | [diff] [blame] | 213 | mask = 0; |
| 214 | if (p[0].revents & POLLIN) |
| 215 | mask |= WL_CONNECTION_READABLE; |
| 216 | if (p[0].revents & POLLOUT) |
| 217 | mask |= WL_CONNECTION_WRITABLE; |
| 218 | if (mask) |
| 219 | wl_display_iterate(display, mask); |
| 220 | } |
Kristian Høgsberg | 97f1ebe | 2008-09-30 09:46:10 -0400 | [diff] [blame] | 221 | |
| 222 | return 0; |
| 223 | } |