mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-02 03:45:58 +01:00
230 lines
6.3 KiB
C
230 lines
6.3 KiB
C
#define _POSIX_C_SOURCE 199309L
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#define _XOPEN_SOURCE 500
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <string.h>
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#include <strings.h>
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#include <unistd.h>
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#include <wayland-server.h>
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#include <wayland-server-protocol.h>
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#include <xkbcommon/xkbcommon.h>
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#include <GLES2/gl2.h>
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#include <wlr/render/matrix.h>
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#include <wlr/render/gles2.h>
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#include <wlr/render.h>
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#include <wlr/backend.h>
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#include <wlr/backend/session.h>
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#include <wlr/types/wlr_keyboard.h>
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#include <wlr/util/log.h>
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#include <math.h>
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#include "shared.h"
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#include "cat.h"
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struct sample_state {
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struct wl_list config;
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struct wlr_renderer *renderer;
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struct wlr_texture *cat_texture;
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};
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struct output_data {
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float x_offs, y_offs;
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float x_vel, y_vel;
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};
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struct output_config {
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char *name;
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enum wl_output_transform transform;
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struct wl_list link;
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};
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static void handle_output_frame(struct output_state *output, struct timespec *ts) {
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struct compositor_state *state = output->compositor;
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struct sample_state *sample = state->data;
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struct output_data *odata = output->data;
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struct wlr_output *wlr_output = output->output;
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int32_t width, height;
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wlr_output_effective_resolution(wlr_output, &width, &height);
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wlr_output_make_current(wlr_output);
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wlr_renderer_begin(sample->renderer, wlr_output);
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float matrix[16];
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for (int y = -128 + (int)odata->y_offs; y < height; y += 128) {
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for (int x = -128 + (int)odata->x_offs; x < width; x += 128) {
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wlr_texture_get_matrix(sample->cat_texture, &matrix,
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&wlr_output->transform_matrix, x, y);
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wlr_render_with_matrix(sample->renderer,
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sample->cat_texture, &matrix);
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}
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}
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wlr_renderer_end(sample->renderer);
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wlr_output_swap_buffers(wlr_output);
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long ms = (ts->tv_sec - output->last_frame.tv_sec) * 1000 +
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(ts->tv_nsec - output->last_frame.tv_nsec) / 1000000;
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float seconds = ms / 1000.0f;
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odata->x_offs += odata->x_vel * seconds;
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odata->y_offs += odata->y_vel * seconds;
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if (odata->x_offs > 128) odata->x_offs = 0;
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if (odata->y_offs > 128) odata->y_offs = 0;
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}
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static void handle_output_add(struct output_state *output) {
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struct output_data *odata = calloc(1, sizeof(struct output_data));
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odata->x_offs = odata->y_offs = 0;
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odata->x_vel = odata->y_vel = 128;
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output->data = odata;
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struct sample_state *state = output->compositor->data;
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struct output_config *conf;
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wl_list_for_each(conf, &state->config, link) {
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if (strcmp(conf->name, output->output->name) == 0) {
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wlr_output_transform(output->output, conf->transform);
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break;
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}
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}
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}
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static void handle_output_remove(struct output_state *output) {
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free(output->data);
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}
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static void update_velocities(struct compositor_state *state,
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float x_diff, float y_diff) {
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struct output_state *output;
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wl_list_for_each(output, &state->outputs, link) {
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struct output_data *odata = output->data;
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odata->x_vel += x_diff;
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odata->y_vel += y_diff;
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}
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}
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static void handle_keyboard_key(struct keyboard_state *kbstate,
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xkb_keysym_t sym, enum wlr_key_state key_state) {
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// NOTE: It may be better to simply refer to our key state during each frame
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// and make this change in pixels/sec^2
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// Also, key repeat
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if (key_state == WLR_KEY_PRESSED) {
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switch (sym) {
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case XKB_KEY_Left:
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update_velocities(kbstate->compositor, -16, 0);
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break;
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case XKB_KEY_Right:
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update_velocities(kbstate->compositor, 16, 0);
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break;
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case XKB_KEY_Up:
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update_velocities(kbstate->compositor, 0, -16);
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break;
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case XKB_KEY_Down:
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update_velocities(kbstate->compositor, 0, 16);
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break;
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}
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}
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}
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static void usage(const char *name, int ret) {
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fprintf(stderr,
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"usage: %s [-d <name> [-r <rotation> | -f]]*\n"
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"\n"
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" -o <output> The name of the DRM display. e.g. DVI-I-1.\n"
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" -r <rotation> The rotation counter clockwise. Valid values are 90, 180, 270.\n"
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" -f Flip the output along the vertical axis.\n", name);
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exit(ret);
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}
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static void parse_args(int argc, char *argv[], struct wl_list *config) {
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struct output_config *oc = NULL;
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int c;
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while ((c = getopt(argc, argv, "o:r:fh")) != -1) {
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switch (c) {
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case 'o':
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oc = calloc(1, sizeof(*oc));
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oc->name = optarg;
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oc->transform = WL_OUTPUT_TRANSFORM_NORMAL;
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wl_list_insert(config, &oc->link);
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break;
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case 'r':
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if (!oc) {
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fprintf(stderr, "You must specify an output first\n");
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usage(argv[0], 1);
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}
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if (oc->transform != WL_OUTPUT_TRANSFORM_NORMAL
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&& oc->transform != WL_OUTPUT_TRANSFORM_FLIPPED) {
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fprintf(stderr, "Rotation for %s already specified\n", oc->name);
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usage(argv[0], 1);
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}
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if (strcmp(optarg, "90") == 0) {
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oc->transform += WL_OUTPUT_TRANSFORM_90;
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} else if (strcmp(optarg, "180") == 0) {
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oc->transform += WL_OUTPUT_TRANSFORM_180;
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} else if (strcmp(optarg, "270") == 0) {
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oc->transform += WL_OUTPUT_TRANSFORM_270;
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} else {
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fprintf(stderr, "Invalid rotation '%s'\n", optarg);
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usage(argv[0], 1);
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}
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break;
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case 'f':
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if (!oc) {
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fprintf(stderr, "You must specify an output first\n");
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usage(argv[0], 1);
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}
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if (oc->transform >= WL_OUTPUT_TRANSFORM_FLIPPED) {
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fprintf(stderr, "Flip for %s already specified\n", oc->name);
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usage(argv[0], 1);
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}
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oc->transform += WL_OUTPUT_TRANSFORM_FLIPPED;
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break;
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case 'h':
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case '?':
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usage(argv[0], c != 'h');
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}
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}
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}
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int main(int argc, char *argv[]) {
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struct sample_state state = {0};
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wl_list_init(&state.config);
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parse_args(argc, argv, &state.config);
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struct compositor_state compositor = { 0 };
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compositor.data = &state;
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compositor.output_add_cb = handle_output_add;
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compositor.output_remove_cb = handle_output_remove;
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compositor.output_frame_cb = handle_output_frame;
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compositor.keyboard_key_cb = handle_keyboard_key;
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compositor_init(&compositor);
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state.renderer = wlr_gles2_renderer_init(compositor.backend);
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if (!state.renderer) {
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wlr_log(L_ERROR, "Could not start compositor, OOM");
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exit(EXIT_FAILURE);
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}
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state.cat_texture = wlr_render_texture_init(state.renderer);
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if (!state.cat_texture) {
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wlr_log(L_ERROR, "Could not start compositor, OOM");
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exit(EXIT_FAILURE);
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}
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wlr_texture_upload_pixels(state.cat_texture, WL_SHM_FORMAT_ABGR8888,
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cat_tex.width, cat_tex.width, cat_tex.height, cat_tex.pixel_data);
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compositor_run(&compositor);
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wlr_texture_destroy(state.cat_texture);
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wlr_renderer_destroy(state.renderer);
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struct output_config *ptr, *tmp;
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wl_list_for_each_safe(ptr, tmp, &state.config, link) {
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free(ptr);
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}
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}
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