133 lines
3.9 KiB
C
133 lines
3.9 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 <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 <GLES3/gl3.h>
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#include <wlr/render/matrix.h>
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#include <wlr/render/gles3.h>
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#include <wlr/render.h>
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#include <wlr/backend.h>
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#include <wlr/session.h>
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#include <wlr/types.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 wlr_renderer *renderer;
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struct wlr_surface *cat_texture;
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int 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_renderer_begin(sample->renderer, 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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float matrix[16];
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wlr_surface_get_matrix(sample->cat_texture, &matrix,
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&wlr_output->transform_matrix, sample->cur_x, sample->cur_y);
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wlr_render_with_matrix(sample->renderer,
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sample->cat_texture, &matrix);
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wlr_renderer_end(sample->renderer);
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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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if (sym == XKB_KEY_Escape) {
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kbstate->compositor->exit = true;
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}
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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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}
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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 wlr_output *wlr_output = ostate->output;
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int width = 16, height = 16;
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if (!wlr_output_set_cursor(wlr_output, cat_tex.pixel_data,
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width * 4, width, height)) {
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fprintf(stderr, "Failed to set cursor\n");
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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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fprintf(stderr, "Failed to move cursor\n");
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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.keyboard_key_cb = handle_keyboard_key;
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compositor.pointer_motion_cb = handle_pointer_motion;
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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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compositor_init(&compositor);
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state.renderer = wlr_gles3_renderer_init();
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state.cat_texture = wlr_render_surface_init(state.renderer);
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wlr_surface_attach_pixels(state.cat_texture, GL_RGBA,
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cat_tex.width, cat_tex.height, cat_tex.pixel_data);
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compositor_run(&compositor);
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wlr_surface_destroy(state.cat_texture);
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wlr_renderer_destroy(state.renderer);
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}
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