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https://gitlab.freedesktop.org/wayland/wayland.git
synced 2025-11-02 09:01:39 -05:00
Rename client, prepare Makefile for more clients.
This commit is contained in:
Kristian Høgsberg
parent
f9bc795a7d
commit
e120a4b1ee
2 changed files with 16 additions and 7 deletions
201
client.c
201
client.c
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@ -1,201 +0,0 @@
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <i915_drm.h>
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#include <sys/ioctl.h>
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#include <sys/poll.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <math.h>
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#include <time.h>
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#include <cairo.h>
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#include "wayland-client.h"
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static const char gem_device[] = "/dev/dri/card0";
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static const char socket_name[] = "\0wayland";
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static uint32_t name_cairo_surface(int fd, cairo_surface_t *surface)
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{
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struct drm_i915_gem_create create;
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struct drm_gem_flink flink;
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struct drm_i915_gem_pwrite pwrite;
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int32_t width, height, stride;
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width = cairo_image_surface_get_width(surface);
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height = cairo_image_surface_get_height(surface);
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stride = cairo_image_surface_get_stride(surface);
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memset(&create, 0, sizeof(create));
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create.size = height * stride;
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if (ioctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create) != 0) {
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fprintf(stderr, "gem create failed: %m\n");
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return 0;
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}
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pwrite.handle = create.handle;
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pwrite.offset = 0;
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pwrite.size = height * stride;
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pwrite.data_ptr = (uint64_t) (uintptr_t)
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cairo_image_surface_get_data(surface);
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if (ioctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &pwrite) < 0) {
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fprintf(stderr, "gem pwrite failed: %m\n");
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return 0;
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}
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flink.handle = create.handle;
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if (ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink) != 0) {
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fprintf(stderr, "gem flink failed: %m\n");
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return 0;
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}
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#if 0
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/* We need to hold on to the handle until the server has received
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* the attach request... we probably need a confirmation event.
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* I guess the breadcrumb idea will suffice. */
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struct drm_gem_close close;
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close.handle = create.handle;
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if (ioctl(fd, DRM_IOCTL_GEM_CLOSE, &close) < 0) {
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fprintf(stderr, "gem close failed: %m\n");
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return 0;
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}
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#endif
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return flink.name;
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}
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static void
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set_random_color(cairo_t *cr)
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{
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cairo_set_source_rgba(cr,
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0.5 + (random() % 50) / 49.0,
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0.5 + (random() % 50) / 49.0,
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0.5 + (random() % 50) / 49.0,
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0.5 + (random() % 100) / 99.0);
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}
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static void *
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draw_stuff(int width, int height)
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{
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const int petal_count = 3 + random() % 5;
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const double r1 = 60 + random() % 35;
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const double r2 = 20 + random() % 40;
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const double u = (10 + random() % 90) / 100.0;
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const double v = (random() % 90) / 100.0;
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cairo_surface_t *surface;
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cairo_t *cr;
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int i;
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double t, dt = 2 * M_PI / (petal_count * 2);
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double x1, y1, x2, y2, x3, y3;
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surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24,
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width, height);
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cr = cairo_create(surface);
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cairo_translate(cr, width / 2, height / 2);
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cairo_move_to(cr, cos(t) * r1, sin(t) * r1);
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for (t = 0, i = 0; i < petal_count; i++, t += dt * 2) {
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x1 = cos(t) * r1;
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y1 = sin(t) * r1;
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x2 = cos(t + dt) * r2;
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y2 = sin(t + dt) * r2;
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x3 = cos(t + 2 * dt) * r1;
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y3 = sin(t + 2 * dt) * r1;
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cairo_curve_to(cr,
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x1 - y1 * u, y1 + x1 * u,
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x2 + y2 * v, y2 - x2 * v,
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x2, y2);
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cairo_curve_to(cr,
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x2 - y2 * v, y2 + x2 * v,
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x3 + y3 * u, y3 - x3 * u,
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x3, y3);
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}
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cairo_close_path(cr);
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set_random_color(cr);
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cairo_fill_preserve(cr);
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set_random_color(cr);
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cairo_stroke(cr);
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cairo_destroy(cr);
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return surface;
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}
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static int
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connection_update(struct wl_connection *connection,
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uint32_t mask, void *data)
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{
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struct pollfd *p = data;
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p->events = 0;
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if (mask & WL_CONNECTION_READABLE)
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p->events |= POLLIN;
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if (mask & WL_CONNECTION_WRITABLE)
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p->events |= POLLOUT;
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return 0;
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}
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int main(int argc, char *argv[])
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{
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struct wl_display *display;
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struct wl_surface *surface;
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const int x = 200, y = 200, width = 200, height = 200;
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int fd, i, ret;
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uint32_t name, mask;
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cairo_surface_t *s;
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struct pollfd p[1];
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srandom(time(NULL));
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fd = open(gem_device, O_RDWR);
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if (fd < 0) {
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fprintf(stderr, "drm open failed: %m\n");
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return -1;
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}
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display = wl_display_create(socket_name,
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connection_update, &p[0]);
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if (display == NULL) {
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fprintf(stderr, "failed to create display: %m\n");
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return -1;
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}
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p[0].fd = wl_display_get_fd(display);
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surface = wl_display_create_surface(display);
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s = draw_stuff(width, height);
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name = name_cairo_surface(fd, s);
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wl_surface_attach(surface, name, width, height,
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cairo_image_surface_get_stride(s));
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i = 0;
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while (ret = poll(p, 1, 20), ret >= 0) {
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if (ret == 0) {
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wl_surface_map(surface,
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x + cos(i / 30.0) * 200,
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y + sin(i / 31.0) * 200,
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width, height);
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i++;
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continue;
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}
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mask = 0;
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if (p[0].revents & POLLIN)
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mask |= WL_CONNECTION_READABLE;
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if (p[0].revents & POLLOUT)
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mask |= WL_CONNECTION_WRITABLE;
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if (mask)
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wl_display_iterate(display, mask);
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}
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return 0;
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}
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