Move visual bell tracking into the Screen object

kitty/boss.py

@@ -369,7 +369,7 @@ class Boss:
         self.tab_manager.render()
         for window in tab.visible_windows():
             if not window.needs_layout:
-                window.render_cells()
+                window.char_grid.render_cells()
         active = self.active_window
         if active is not None:
             draw_cursor = True

kitty/char_grid.py

@@ -42,8 +42,8 @@ def calculate_gl_geometry(window_geometry, viewport_width, viewport_height, cell
     return ScreenGeometry(xstart, ystart, window_geometry.xnum, window_geometry.ynum, dx, dy)
 
 
-def render_cells(vao_id, sg, screen, invert_colors=False):
-    draw_cells(vao_id, sg.xstart, sg.ystart, sg.dx, sg.dy, invert_colors, screen)
+def render_cells(vao_id, sg, screen):
+    draw_cells(vao_id, sg.xstart, sg.ystart, sg.dx, sg.dy, screen)
 
 
 class CharGrid:
@@ -172,10 +172,8 @@ class CharGrid:
     def text_for_selection(self):
         return ''.join(self.screen.text_for_selection())
 
-    def render_cells(self, invert_colors=False):
-        render_cells(
-            self.vao_id, self.screen_geometry,
-            self.screen, invert_colors=invert_colors)
+    def render_cells(self):
+        render_cells(self.vao_id, self.screen_geometry, self.screen)
 
     def render_cursor(self, is_focused):
         if not self.screen.cursor_visible or self.screen.scrolled_by:

kitty/data-types.h

@@ -247,6 +247,7 @@ typedef struct {
     bool *tabstops, *main_tabstops, *alt_tabstops;
     ScreenModes modes;
     ColorProfile *color_profile;
+    double start_visual_bell_at;
 
     uint32_t parser_buf[PARSER_BUF_SZ];
     unsigned int parser_state, parser_text_start, parser_buf_pos;
@@ -286,6 +287,19 @@ typedef struct {
 } ChildMonitor;
 PyTypeObject ChildMonitor_Type;
 
+typedef struct {
+    double visual_bell_duration;
+    bool enable_audio_bell;
+} Options;
+
+typedef struct {
+    Options opts;
+} GlobalState;
+
+#ifndef IS_STATE
+extern GlobalState global_state;
+#endif
+
 #define clear_sprite_position(cell) (cell).sprite_x = 0; (cell).sprite_y = 0; (cell).sprite_z = 0; 
 
 #define left_shift_line(line, at, num) \

kitty/screen.c

@@ -16,6 +16,9 @@
 #include "screen.h"
 #include <structmember.h>
 #include <limits.h>
+#include <sys/types.h>                                                                                          
+#include <sys/stat.h>
+#include <fcntl.h>
 #include "unicode-data.h"
 #include "modes.h"
 #include "wcwidth9.h"
@@ -911,8 +914,34 @@ screen_use_latin1(Screen *self, bool on) {
     CALLBACK("use_utf8", "O", on ? Py_False : Py_True);
 }
 
+bool
+screen_invert_colors(Screen *self) {
+    bool inverted = false;
+    if (self->start_visual_bell_at > 0) {
+        if (monotonic() - self->start_visual_bell_at <= global_state.opts.visual_bell_duration) inverted = true;
+        else self->start_visual_bell_at = 0;
+    }
+    if (self->modes.mDECSCNM) inverted = inverted ? false : true;
+    return inverted;
+}
+
 void 
 screen_bell(Screen UNUSED *self) {  
+    if (global_state.opts.enable_audio_bell) {
+        int fd = open("/dev/tty", O_WRONLY | O_CLOEXEC | O_NOCTTY);
+        if (fd > 0) {
+            static const char bell[2] = {7, 0};
+            while(true) {
+                if (write(fd, &bell, sizeof(bell)) == sizeof(bell)) break;
+                if (errno == EINTR) continue;
+                break;
+            }
+            close(fd);
+        }
+    }
+    if (global_state.opts.visual_bell_duration > 0) {
+        self->start_visual_bell_at = monotonic();
+    }
     CALLBACK("bell", NULL);
 } 
 

kitty/screen.h

@@ -61,6 +61,7 @@ void report_device_status(Screen *self, unsigned int which, bool UNUSED);
 void report_mode_status(Screen *self, unsigned int which, bool);
 void screen_apply_selection(Screen *self, void *address, size_t size);
 bool screen_is_selection_dirty(Screen *self);
+bool screen_invert_colors(Screen *self);
 void screen_update_cell_data(Screen *self, void *address, size_t sz);
 #define DECLARE_CH_SCREEN_HANDLER(name) void screen_##name(Screen *screen);
 DECLARE_CH_SCREEN_HANDLER(bell)

kitty/shaders.c

@@ -596,10 +596,10 @@ create_cell_vao() {
 }
 
 static void 
-draw_cells(ssize_t vao_idx, GLfloat xstart, GLfloat ystart, GLfloat dx, GLfloat dy, bool inverted, Screen *screen) {
+draw_cells(ssize_t vao_idx, GLfloat xstart, GLfloat ystart, GLfloat dx, GLfloat dy, Screen *screen) {
     size_t sz;
     void *address;
-    if (screen->modes.mDECSCNM) inverted = inverted ? false : true;
+    bool inverted = screen_invert_colors(screen);
     if (screen->scroll_changed || screen->is_dirty) {
         sz = sizeof(Cell) * screen->lines * screen->columns;
         address = map_vao_buffer(vao_idx, sz, 0, GL_STREAM_DRAW, GL_WRITE_ONLY);
@@ -839,11 +839,11 @@ NO_ARG(init_cell_program)
 NO_ARG_INT(create_cell_vao)
 PYWRAP1(draw_cells) { 
     float xstart, ystart, dx, dy;
-    int vao_idx, inverted;
+    int vao_idx;
     Screen *screen;
 
-    PA("iffffpO", &vao_idx, &xstart, &ystart, &dx, &dy, &inverted, &screen); 
-    draw_cells(vao_idx, xstart, ystart, dx, dy, inverted & 1, screen);
+    PA("iffffO", &vao_idx, &xstart, &ystart, &dx, &dy, &screen); 
+    draw_cells(vao_idx, xstart, ystart, dx, dy, screen);
     Py_RETURN_NONE;
 }
 NO_ARG(destroy_sprite_map)

kitty/state.c

@@ -5,6 +5,7 @@
  * Distributed under terms of the GPL3 license.
  */
 
+#define IS_STATE
 #include "data-types.h"
 
 #define PYWRAP0(name) static PyObject* py##name(PyObject UNUSED *self)
@@ -12,21 +13,14 @@
 #define PYWRAP2(name) static PyObject* py##name(PyObject UNUSED *self, PyObject *args, PyObject *kw)
 #define PA(fmt, ...) if(!PyArg_ParseTuple(args, fmt, __VA_ARGS__)) return NULL;
 
-typedef struct {
-    double visual_bell_duration;
-} Options;
-
-typedef struct {
-    Options opts;
-} GlobalState;
-
-static GlobalState global_state = {{0}};
+GlobalState global_state = {{0}};
 
 
 // Python API {{{
 PYWRAP1(set_options) {
 #define S(name, convert) { PyObject *ret = PyObject_GetAttrString(args, #name); if (ret == NULL) return NULL; global_state.opts.name = convert(ret); Py_DECREF(ret); }
     S(visual_bell_duration, PyFloat_AsDouble);
+    S(enable_audio_bell, PyObject_IsTrue);
 #undef S
     Py_RETURN_NONE;
 }

kitty/window.py

@@ -117,14 +117,6 @@ class Window:
                 print('Failed to write to child %d as it does not exist' % self.id, file=sys.stderr)
 
     def bell(self):
-        if self.opts.enable_audio_bell:
-            try:
-                with open('/dev/tty', 'wb') as f:
-                    f.write(b'\007')
-            except EnvironmentError:
-                pass  # failure to beep is not critical
-        if self.opts.visual_bell_duration > 0:
-            self.start_visual_bell_at = monotonic()
         get_boss().request_attention()
         glfw_post_empty_event()
 
@@ -281,14 +273,6 @@ class Window:
     def buf_toggled(self, is_main_linebuf):
         self.screen.scroll(SCROLL_FULL, False)
 
-    def render_cells(self):
-        invert_colors = False
-        if self.start_visual_bell_at is not None:
-            invert_colors = monotonic() - self.start_visual_bell_at <= self.opts.visual_bell_duration
-            if not invert_colors:
-                self.start_visual_bell_at = None
-        self.char_grid.render_cells(invert_colors)
-
     # actions {{{
 
     def show_scrollback(self):