diff options
author | Drew DeVault <sir@cmpwn.com> | 2017-06-29 16:00:24 -0400 |
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committer | Drew DeVault <sir@cmpwn.com> | 2017-06-29 16:00:24 -0400 |
commit | 8920b5d607c6b3b5d04894fc1837ac4f2d9558ae (patch) | |
tree | 3c79b4faff213544ed247e1c126fc89508bdd75d /examples/pointer.c | |
parent | 97f6e9b69aecf1fbcbc2fa95cb2009f873c86d40 (diff) | |
parent | 486ec5953cf51f5fde834bf8fa7fbe56f0be9a0e (diff) |
Merge branch 'wlcore'
Diffstat (limited to 'examples/pointer.c')
-rw-r--r-- | examples/pointer.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/examples/pointer.c b/examples/pointer.c new file mode 100644 index 00000000..c7518841 --- /dev/null +++ b/examples/pointer.c @@ -0,0 +1,127 @@ +#define _POSIX_C_SOURCE 199309L +#define _XOPEN_SOURCE 500 +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <string.h> +#include <unistd.h> +#include <math.h> +#include <wayland-server.h> +#include <wayland-server-protocol.h> +#include <xkbcommon/xkbcommon.h> +#include <GLES2/gl2.h> +#include <wlr/render/matrix.h> +#include <wlr/render/gles2.h> +#include <wlr/render.h> +#include <wlr/backend.h> +#include <wlr/session.h> +#include <wlr/types/wlr_keyboard.h> +#include <wlr/util/log.h> +#include "shared.h" +#include "cat.h" + +struct sample_state { + double cur_x, cur_y; + float default_color[4]; + float clear_color[4]; +}; + +static void handle_output_frame(struct output_state *output, struct timespec *ts) { + struct compositor_state *state = output->compositor; + struct sample_state *sample = state->data; + struct wlr_output *wlr_output = output->output; + + wlr_output_make_current(wlr_output); + + glClearColor(sample->clear_color[0], sample->clear_color[1], + sample->clear_color[2], sample->clear_color[3]); + glClear(GL_COLOR_BUFFER_BIT); + + wlr_output_swap_buffers(wlr_output); +} + +static void handle_pointer_motion(struct pointer_state *pstate, + double d_x, double d_y) { + struct sample_state *state = pstate->compositor->data; + state->cur_x += d_x; + state->cur_y += d_y; + + struct output_state *output; + wl_list_for_each(output, &pstate->compositor->outputs, link) { + wlr_output_move_cursor(output->output, state->cur_x, state->cur_y); + } +} + +static void handle_pointer_motion_absolute(struct pointer_state *pstate, + double x, double y) { + struct sample_state *state = pstate->compositor->data; + state->cur_x = x; + state->cur_y = y; + + struct output_state *output; + wl_list_for_each(output, &pstate->compositor->outputs, link) { + wlr_output_move_cursor(output->output, state->cur_x, state->cur_y); + } +} + +static void handle_pointer_button(struct pointer_state *pstate, + uint32_t button, enum wlr_button_state state) { + struct sample_state *sample = pstate->compositor->data; + float (*color)[4]; + if (state == WLR_BUTTON_RELEASED) { + color = &sample->default_color; + } else { + float red[4] = { 0.25f, 0.25f, 0.25f, 1 }; + red[button % 3] = 1; + color = &red; + } + memcpy(&sample->clear_color, color, sizeof(*color)); +} + +static void handle_pointer_axis(struct pointer_state *pstate, + enum wlr_axis_source source, + enum wlr_axis_orientation orientation, + double delta) { + struct sample_state *sample = pstate->compositor->data; + for (size_t i = 0; i < 3; ++i) { + sample->default_color[i] += delta > 0 ? -0.05f : 0.05f; + if (sample->default_color[i] > 1.0f) { + sample->default_color[i] = 1.0f; + } + if (sample->default_color[i] < 0.0f) { + sample->default_color[i] = 0.0f; + } + } + memcpy(&sample->clear_color, &sample->default_color, + sizeof(sample->clear_color)); +} + +static void handle_output_add(struct output_state *ostate) { + struct wlr_output *wlr_output = ostate->output; + if (!wlr_output_set_cursor(wlr_output, cat_tex.pixel_data, + cat_tex.width, cat_tex.width, cat_tex.height)) { + wlr_log(L_DEBUG, "Failed to set hardware cursor"); + return; + } + if (!wlr_output_move_cursor(wlr_output, 0, 0)) { + wlr_log(L_DEBUG, "Failed to move hardware cursor"); + } +} + +int main(int argc, char *argv[]) { + struct sample_state state = { + .default_color = { 0.25f, 0.25f, 0.25f, 1 }, + .clear_color = { 0.25f, 0.25f, 0.25f, 1 } + }; + struct compositor_state compositor = { 0 }; + compositor.data = &state; + compositor.output_add_cb = handle_output_add; + compositor.output_frame_cb = handle_output_frame; + compositor.pointer_motion_cb = handle_pointer_motion; + compositor.pointer_motion_absolute_cb = handle_pointer_motion_absolute; + compositor.pointer_button_cb = handle_pointer_button; + compositor.pointer_axis_cb = handle_pointer_axis; + compositor_init(&compositor); + + compositor_run(&compositor); +} |