102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/*
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* Copyright (c) 2019 Andri Yngvason
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "neatvnc.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 <uv.h>
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#include <assert.h>
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#include <pixman.h>
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#include <libdrm/drm_fourcc.h>
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struct draw {
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struct nvnc_fb fb;
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};
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void on_fb_req(struct nvnc_client *client, bool incremental, uint16_t x, uint16_t y,
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uint16_t width, uint16_t height)
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{
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if (incremental)
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return;
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struct nvnc* server = nvnc_get_server(client);
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assert(server);
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struct draw *draw = nvnc_get_userdata(server);
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assert(draw);
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struct pixman_region16 region;
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pixman_region_init_rect(®ion, 0, 0, draw->fb.width,
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draw->fb.height);
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nvnc_update_fb(server, &draw->fb, ®ion, NULL);
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pixman_region_fini(®ion);
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}
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void on_pointer_event(struct nvnc_client *client, uint16_t x, uint16_t y,
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enum nvnc_button_mask buttons)
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{
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if (!(buttons & NVNC_BUTTON_LEFT))
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return;
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struct nvnc *server = nvnc_get_server(client);
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assert(server);
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struct draw *draw = nvnc_get_userdata(server);
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assert(draw);
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uint32_t *image = draw->fb.addr;
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image[x + y * draw->fb.width] = 0;
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struct pixman_region16 region;
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pixman_region_init_rect(®ion, 0, 0, draw->fb.width,
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draw->fb.height);
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pixman_region_intersect_rect(®ion, ®ion, x, y, 1, 1);
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nvnc_update_fb(server, &draw->fb, ®ion, NULL);
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pixman_region_fini(®ion);
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}
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int main(int argc, char *argv[])
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{
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struct draw draw;
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draw.fb.width = 500;
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draw.fb.height = 500;
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draw.fb.size = draw.fb.width * draw.fb.height * 4;
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draw.fb.fourcc_format = DRM_FORMAT_RGBX8888;
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draw.fb.fourcc_modifier = DRM_FORMAT_MOD_LINEAR;
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draw.fb.addr = malloc(draw.fb.size);
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assert(draw.fb.addr);
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memset(draw.fb.addr, 0xff, draw.fb.size);
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struct nvnc *server = nvnc_open("127.0.0.1", 5900);
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nvnc_set_dimensions(server, draw.fb.width, draw.fb.height,
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draw.fb.fourcc_format);
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nvnc_set_name(server, "Draw");
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nvnc_set_fb_req_fn(server, on_fb_req);
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nvnc_set_pointer_fn(server, on_pointer_event);
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nvnc_set_userdata(server, &draw);
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uv_run(uv_default_loop(), UV_RUN_DEFAULT);
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nvnc_close(server);
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}
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