145 lines
4.2 KiB
C
145 lines
4.2 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 <unistd.h>
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#include <math.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/xcursor.h>
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#include <wlr/util/log.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 wlr_cursor *cursor;
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double cur_x, cur_y;
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float default_color[4];
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float clear_color[4];
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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 wlr_output *wlr_output = output->output;
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wlr_output_make_current(wlr_output);
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glClearColor(sample->clear_color[0], sample->clear_color[1],
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sample->clear_color[2], sample->clear_color[3]);
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glClear(GL_COLOR_BUFFER_BIT);
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wlr_output_swap_buffers(wlr_output);
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}
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static void handle_pointer_motion(struct pointer_state *pstate,
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double d_x, double d_y) {
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struct sample_state *state = pstate->compositor->data;
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state->cur_x += d_x;
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state->cur_y += d_y;
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struct output_state *output;
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wl_list_for_each(output, &pstate->compositor->outputs, link) {
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wlr_output_move_cursor(output->output, state->cur_x, state->cur_y);
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}
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}
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static void handle_pointer_motion_absolute(struct pointer_state *pstate,
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double x, double y) {
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struct sample_state *state = pstate->compositor->data;
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state->cur_x = x;
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state->cur_y = y;
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struct output_state *output;
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wl_list_for_each(output, &pstate->compositor->outputs, link) {
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wlr_output_move_cursor(output->output, state->cur_x, state->cur_y);
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}
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}
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static void handle_pointer_button(struct pointer_state *pstate,
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uint32_t button, enum wlr_button_state state) {
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struct sample_state *sample = pstate->compositor->data;
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float (*color)[4];
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if (state == WLR_BUTTON_RELEASED) {
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color = &sample->default_color;
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} else {
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float red[4] = { 0.25f, 0.25f, 0.25f, 1 };
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red[button % 3] = 1;
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color = &red;
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}
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memcpy(&sample->clear_color, color, sizeof(*color));
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}
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static void handle_pointer_axis(struct pointer_state *pstate,
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enum wlr_axis_source source,
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enum wlr_axis_orientation orientation,
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double delta) {
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struct sample_state *sample = pstate->compositor->data;
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for (size_t i = 0; i < 3; ++i) {
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sample->default_color[i] += delta > 0 ? -0.05f : 0.05f;
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if (sample->default_color[i] > 1.0f) {
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sample->default_color[i] = 1.0f;
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}
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if (sample->default_color[i] < 0.0f) {
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sample->default_color[i] = 0.0f;
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}
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}
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memcpy(&sample->clear_color, &sample->default_color,
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sizeof(sample->clear_color));
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}
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static void handle_output_add(struct output_state *ostate) {
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struct sample_state *state = ostate->compositor->data;
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struct wlr_output *wlr_output = ostate->output;
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struct wlr_cursor_image *image = state->cursor->images[0];
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if (!wlr_output_set_cursor(wlr_output, image->buffer,
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image->width, image->width, image->height)) {
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wlr_log(L_DEBUG, "Failed to set hardware cursor");
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return;
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}
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if (!wlr_output_move_cursor(wlr_output, 0, 0)) {
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wlr_log(L_DEBUG, "Failed to move hardware cursor");
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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 = {
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.default_color = { 0.25f, 0.25f, 0.25f, 1 },
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.clear_color = { 0.25f, 0.25f, 0.25f, 1 }
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};
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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_frame_cb = handle_output_frame;
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compositor.pointer_motion_cb = handle_pointer_motion;
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compositor.pointer_motion_absolute_cb = handle_pointer_motion_absolute;
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compositor.pointer_button_cb = handle_pointer_button;
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compositor.pointer_axis_cb = handle_pointer_axis;
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struct wlr_cursor_theme *theme = wlr_cursor_theme_load("default", 16);
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if (!theme) {
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wlr_log(L_ERROR, "Failed to load cursor theme");
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return 1;
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}
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state.cursor = wlr_cursor_theme_get_cursor(theme, "left_ptr");
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if (!state.cursor) {
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wlr_log(L_ERROR, "Failed to load left_ptr cursor");
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return 1;
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}
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compositor_init(&compositor);
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compositor_run(&compositor);
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wlr_cursor_theme_destroy(theme);
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}
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