Refactor to share image drawing code

This commit is contained in:
Benoît Dardenne 2020-04-18 12:50:27 +02:00
parent 8bb468697c
commit 457ab2ae2b
3 changed files with 48 additions and 63 deletions

View File

@ -2195,21 +2195,7 @@ int main(int argc, char *argv[]) {
blur_image_surface(blur_img, blur_sigma);
if (img) {
// Display image centered on all outputs.
if (centered) {
draw_on_all_outputs(ctx);
} else if (tile) {
/* create a pattern and fill a rectangle as big as the screen */
cairo_pattern_t *pattern;
pattern = cairo_pattern_create_for_surface(img);
cairo_set_source(ctx, pattern);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
cairo_rectangle(ctx, 0, 0, last_resolution[0], last_resolution[1]);
cairo_fill(ctx);
cairo_pattern_destroy(pattern);
} else {
cairo_set_source_surface(ctx, img, 0, 0);
cairo_paint(ctx);
}
draw_image(last_resolution, ctx);
cairo_surface_destroy(img);
img = NULL;
}
@ -2223,7 +2209,7 @@ int main(int argc, char *argv[]) {
win = open_fullscreen_window(conn, screen, color);
xcb_pixmap_t pixmap = create_bg_pixmap(conn, win, last_resolution, color);
draw_image(last_resolution, pixmap);
render_lock(last_resolution, pixmap);
xcb_change_window_attributes(conn, win, XCB_CW_BACK_PIXMAP, (uint32_t[]){pixmap});
xcb_free_pixmap(conn, pixmap);

View File

@ -673,10 +673,9 @@ static void draw_elements(cairo_t *const ctx, DrawData const *const draw_data) {
}
/*
* Draws global image with fill color onto a provided drawable with the given
* resolution.
* Renders the lock screen on the provided drawable with the given resolution.
*/
void draw_image(uint32_t *resolution, xcb_drawable_t drawable) {
void render_lock(uint32_t *resolution, xcb_drawable_t drawable) {
const double scaling_factor = get_dpi_value() / 96.0;
int button_diameter_physical = ceil(scaling_factor * BUTTON_DIAMETER);
DEBUG("scaling_factor is %.f, physical diameter is %d px\n",
@ -720,22 +719,7 @@ void draw_image(uint32_t *resolution, xcb_drawable_t drawable) {
cairo_set_source_surface(xcb_ctx, blur_img, 0, 0);
cairo_paint(xcb_ctx);
} else { // img can no longer be non-NULL if blur_img is not null
if (centered)
draw_on_all_outputs(xcb_ctx);
}
else if (tile) {
/* create a pattern and fill a rectangle as big as the screen */
cairo_pattern_t *pattern;
pattern = cairo_pattern_create_for_surface(img);
cairo_set_source(xcb_ctx, pattern);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
cairo_rectangle(xcb_ctx, 0, 0, resolution[0], resolution[1]);
cairo_fill(xcb_ctx);
cairo_pattern_destroy(pattern);
} else {
cairo_set_source_surface(xcb_ctx, img, 0, 0);
cairo_paint(xcb_ctx);
}
draw_image(resolution, xcb_ctx);
}
} else {
cairo_set_source_rgb(xcb_ctx, rgb16.red, rgb16.green, rgb16.blue);
@ -1068,49 +1052,64 @@ void draw_image(uint32_t *resolution, xcb_drawable_t drawable) {
cairo_destroy(xcb_ctx);
}
void draw_on_all_outputs(cairo_t* xcb_ctx) {
double image_width = cairo_image_surface_get_width(img);
double image_height = cairo_image_surface_get_height(img);
void draw_image(uint32_t* resolution, cairo_t* xcb_ctx) {
if (centered) {
double image_width = cairo_image_surface_get_width(img);
double image_height = cairo_image_surface_get_height(img);
xcb_randr_get_screen_resources_current_reply_t *reply = xcb_randr_get_screen_resources_current_reply(
conn, xcb_randr_get_screen_resources_current(conn, screen->root), NULL);
xcb_randr_get_screen_resources_current_reply_t *reply = xcb_randr_get_screen_resources_current_reply(
conn, xcb_randr_get_screen_resources_current(conn, screen->root), NULL);
xcb_timestamp_t timestamp = reply->config_timestamp;
int len = xcb_randr_get_screen_resources_current_outputs_length(reply);
xcb_randr_output_t *randr_outputs = xcb_randr_get_screen_resources_current_outputs(reply);
xcb_timestamp_t timestamp = reply->config_timestamp;
int len = xcb_randr_get_screen_resources_current_outputs_length(reply);
xcb_randr_output_t *randr_outputs = xcb_randr_get_screen_resources_current_outputs(reply);
for (int i = 0; i < len; i++) {
xcb_randr_get_output_info_reply_t *output = xcb_randr_get_output_info_reply(
conn, xcb_randr_get_output_info(conn, randr_outputs[i], timestamp), NULL);
if (output == NULL)
continue;
for (int i = 0; i < len; i++) {
xcb_randr_get_output_info_reply_t *output = xcb_randr_get_output_info_reply(
conn, xcb_randr_get_output_info(conn, randr_outputs[i], timestamp), NULL);
if (output == NULL)
continue;
if (output->crtc == XCB_NONE || output->connection == XCB_RANDR_CONNECTION_DISCONNECTED)
continue;
if (output->crtc == XCB_NONE || output->connection == XCB_RANDR_CONNECTION_DISCONNECTED)
continue;
xcb_randr_get_crtc_info_cookie_t infoCookie = xcb_randr_get_crtc_info(conn, output->crtc,
timestamp);
xcb_randr_get_crtc_info_reply_t *crtc = xcb_randr_get_crtc_info_reply(conn, infoCookie, NULL);
xcb_randr_get_crtc_info_cookie_t infoCookie = xcb_randr_get_crtc_info(conn, output->crtc,
timestamp);
xcb_randr_get_crtc_info_reply_t *crtc = xcb_randr_get_crtc_info_reply(conn, infoCookie, NULL);
double origin_x = crtc->x + (crtc->width / 2.0 - image_width / 2.0);
double origin_y = crtc->y + (crtc->height / 2.0 - image_height / 2.0);
double origin_x = crtc->x + (crtc->width / 2.0 - image_width / 2.0);
double origin_y = crtc->y + (crtc->height / 2.0 - image_height / 2.0);
cairo_set_source_surface(xcb_ctx, img, origin_x, origin_y);
cairo_set_source_surface(xcb_ctx, img, origin_x, origin_y);
cairo_paint(xcb_ctx);
free(crtc);
free(output);
}
} else if (tile) {
/* create a pattern and fill a rectangle as big as the screen */
cairo_pattern_t *pattern;
pattern = cairo_pattern_create_for_surface(img);
cairo_set_source(xcb_ctx, pattern);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
cairo_rectangle(xcb_ctx, 0, 0, resolution[0], resolution[1]);
cairo_fill(xcb_ctx);
cairo_pattern_destroy(pattern);
} else {
cairo_set_source_surface(xcb_ctx, img, 0, 0);
cairo_paint(xcb_ctx);
free(crtc);
free(output);
}
}
/*
* Calls draw_image on a new pixmap and swaps that with the current pixmap
* Calls render_lock on a new pixmap and swaps that with the current pixmap
*
*/
void redraw_screen(void) {
DEBUG("redraw_screen(unlock_state = %d, auth_state = %d) @ [%lu]\n", unlock_state, auth_state, (unsigned long)time(NULL));
xcb_pixmap_t pixmap = create_bg_pixmap(conn, win, last_resolution, color);
draw_image(last_resolution, pixmap);
render_lock(last_resolution, pixmap);
xcb_change_window_attributes(conn, win, XCB_CW_BACK_PIXMAP, (uint32_t[1]){pixmap});
xcb_clear_area(conn, 0, win, 0, 0, last_resolution[0], last_resolution[1]);
xcb_free_pixmap(conn, pixmap);

View File

@ -38,8 +38,8 @@ typedef struct {
double bar_offset;
} DrawData;
void draw_image(uint32_t* resolution, xcb_drawable_t drawable);
void draw_on_all_outputs(cairo_t* xcb_ctx);
void render_lock(uint32_t* resolution, xcb_drawable_t drawable);
void draw_image(uint32_t* resolution, cairo_t* xcb_ctx);
void init_colors_once(void);
void redraw_screen(void);
void clear_indicator(void);