diff options
Diffstat (limited to 'example/tablet.c')
| -rw-r--r-- | example/tablet.c | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/example/tablet.c b/example/tablet.c deleted file mode 100644 index 0343bd0a..00000000 --- a/example/tablet.c +++ /dev/null @@ -1,158 +0,0 @@ -#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 <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_output.h> -#include <wlr/types/wlr_tablet_tool.h> -#include <wlr/types/wlr_tablet_pad.h> -#include <math.h> -#include "shared.h" -#include "cat.h" - -struct sample_state { - struct wlr_renderer *renderer; - bool proximity, tap, button; - double distance; - double pressure; - double x_mm, y_mm; - double width_mm, height_mm; - struct wl_list link; - float tool_color[4]; - float pad_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; - - int32_t width, height; - wlr_output_effective_resolution(wlr_output, &width, &height); - - wlr_renderer_begin(sample->renderer, wlr_output); - - float matrix[16], view[16]; - float distance = 0.8f * (1 - sample->distance); - float tool_color[4] = { distance, distance, distance, 1 }; - for (size_t i = 0; sample->button && i < 4; ++i) { - tool_color[i] = sample->tool_color[i]; - } - float scale = 4; - - float pad_width = sample->width_mm * scale; - float pad_height = sample->height_mm * scale; - float left = width / 2.0f - pad_width / 2.0f; - float top = height / 2.0f - pad_height / 2.0f; - wlr_matrix_translate(&matrix, left, top, 0); - wlr_matrix_scale(&view, pad_width, pad_height, 1); - wlr_matrix_mul(&matrix, &view, &view); - wlr_matrix_mul(&wlr_output->transform_matrix, &view, &matrix); - wlr_render_colored_quad(sample->renderer, &sample->pad_color, &matrix); - - if (sample->proximity) { - wlr_matrix_translate(&matrix, - sample->x_mm * scale - 8 * (sample->pressure + 1) + left, - sample->y_mm * scale - 8 * (sample->pressure + 1) + top, 0); - wlr_matrix_scale(&view, - 16 * (sample->pressure + 1), - 16 * (sample->pressure + 1), 1); - wlr_matrix_mul(&matrix, &view, &view); - wlr_matrix_mul(&wlr_output->transform_matrix, &view, &matrix); - wlr_render_colored_ellipse(sample->renderer, &tool_color, &matrix); - } - - wlr_renderer_end(sample->renderer); -} - -static void handle_tool_axis(struct tablet_tool_state *tstate, - struct wlr_event_tablet_tool_axis *event) { - struct sample_state *sample = tstate->compositor->data; - sample->width_mm = event->width_mm; - sample->height_mm = event->height_mm; - if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_X)) { - sample->x_mm = event->x_mm; - } - if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_Y)) { - sample->y_mm = event->y_mm; - } - if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_DISTANCE)) { - sample->distance = event->distance; - } - if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_PRESSURE)) { - sample->pressure = event->pressure; - } -} - -static void handle_tool_proximity(struct tablet_tool_state *tstate, - enum wlr_tablet_tool_proximity_state state) { - struct sample_state *sample = tstate->compositor->data; - sample->proximity = state == WLR_TABLET_TOOL_PROXIMITY_IN; -} - -static void handle_tool_button(struct tablet_tool_state *tstate, - uint32_t button, enum wlr_button_state state) { - struct sample_state *sample = tstate->compositor->data; - if (state == WLR_BUTTON_RELEASED) { - sample->button = false; - } else { - sample->button = true; - for (size_t i = 0; i < 3; ++i) { - if (button % 3 == i) { - sample->tool_color[i] = 0; - } else { - sample->tool_color[i] = 1; - } - } - } -} - -static void handle_pad_button(struct tablet_pad_state *pstate, - uint32_t button, enum wlr_button_state state) { - struct sample_state *sample = pstate->compositor->data; - float default_color[4] = { 0.75, 0.75, 0.75, 1.0 }; - if (state == WLR_BUTTON_RELEASED) { - memcpy(sample->pad_color, default_color, sizeof(default_color)); - } else { - for (size_t i = 0; i < 3; ++i) { - if (button % 3 == i) { - sample->pad_color[i] = 0; - } else { - sample->pad_color[i] = 1; - } - } - } -} - -int main(int argc, char *argv[]) { - struct sample_state state = { - .tool_color = { 1, 1, 1, 1 }, - .pad_color = { 0.75, 0.75, 0.75, 1.0 } - }; - struct compositor_state compositor = { 0, - .data = &state, - .output_frame_cb = handle_output_frame, - .tool_axis_cb = handle_tool_axis, - .tool_proximity_cb = handle_tool_proximity, - .tool_button_cb = handle_tool_button, - .pad_button_cb = handle_pad_button, - }; - compositor_init(&compositor); - - state.renderer = wlr_gles2_renderer_init(); - - compositor_run(&compositor); - - wlr_renderer_destroy(state.renderer); -} |