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kitty/kitty/state.c
Kovid Goyal ffff343e3d
Work on rendering to FBO
2017-12-01 12:16:15 +05:30

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18 KiB
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/*
* state.c
* Copyright (C) 2017 Kovid Goyal <kovid at kovidgoyal.net>
*
* Distributed under terms of the GPL3 license.
*/
#include "state.h"
GlobalState global_state = {{0}};
#define REMOVER(array, qid, count, structure, destroy, capacity) { \
for (size_t i = 0; i < count; i++) { \
if (array[i].id == qid) { \
destroy(array + i); \
memset(array + i, 0, sizeof(structure)); \
size_t num_to_right = count - 1 - i; \
if (num_to_right) memmove(array + i, array + i + 1, num_to_right * sizeof(structure)); \
(count)--; \
break; \
} \
}}
#define WITH_OS_WINDOW(os_window_id) \
for (size_t o = 0; o < global_state.num_os_windows; o++) { \
OSWindow *os_window = global_state.os_windows + o; \
if (os_window->id == os_window_id) {
#define END_WITH_OS_WINDOW break; }}
#define WITH_TAB(os_window_id, tab_id) \
for (size_t o = 0; o < global_state.num_os_windows; o++) { \
OSWindow *osw = global_state.os_windows + o; \
if (osw->id == os_window_id) { \
for (size_t t = 0; t < osw->num_tabs; t++) { \
if (osw->tabs[t].id == tab_id) { \
Tab *tab = osw->tabs + t;
#define END_WITH_TAB break; }}}}
#define WITH_OS_WINDOW_REFS \
id_type cb_window_id = 0, focused_window_id = 0; \
if (global_state.callback_os_window) cb_window_id = global_state.callback_os_window->id; \
#define END_WITH_OS_WINDOW_REFS \
if (cb_window_id || focused_window_id) { \
global_state.callback_os_window = NULL; \
for (size_t wn = 0; wn < global_state.num_os_windows; wn++) { \
OSWindow *wp = global_state.os_windows + wn; \
if (wp->id == cb_window_id && cb_window_id) global_state.callback_os_window = wp; \
}}
OSWindow*
current_os_window() {
if (global_state.callback_os_window) return global_state.callback_os_window;
for (size_t i = 0; i < global_state.num_os_windows; i++) {
if (global_state.os_windows[i].is_focused) return global_state.os_windows + i;
}
return global_state.os_windows;
}
OSWindow*
os_window_for_kitty_window(id_type kitty_window_id) {
for (size_t i = 0; i < global_state.num_os_windows; i++) {
OSWindow *w = global_state.os_windows + i;
for (size_t t = 0; t < w->num_tabs; t++) {
Tab *tab = w->tabs + t;
for (size_t c = 0; c < tab->num_windows; c++) {
if (tab->windows[c].id == kitty_window_id) return w;
}
}
}
return NULL;
}
OSWindow*
add_os_window() {
WITH_OS_WINDOW_REFS
ensure_space_for(&global_state, os_windows, OSWindow, global_state.num_os_windows + 1, capacity, 1, true);
OSWindow *ans = global_state.os_windows + global_state.num_os_windows++;
memset(ans, 0, sizeof(OSWindow));
ans->id = ++global_state.os_window_id_counter;
ans->tab_bar_render_data.vao_idx = create_cell_vao();
END_WITH_OS_WINDOW_REFS
return ans;
}
static inline id_type
add_tab(id_type os_window_id) {
WITH_OS_WINDOW(os_window_id)
ensure_space_for(os_window, tabs, Tab, os_window->num_tabs + 1, capacity, 1, true);
memset(os_window->tabs + os_window->num_tabs, 0, sizeof(Tab));
os_window->tabs[os_window->num_tabs].id = ++global_state.tab_id_counter;
os_window->tabs[os_window->num_tabs].border_rects.vao_idx = create_border_vao();
return os_window->tabs[os_window->num_tabs++].id;
END_WITH_OS_WINDOW
return 0;
}
static inline id_type
add_window(id_type os_window_id, id_type tab_id, PyObject *title) {
WITH_TAB(os_window_id, tab_id);
ensure_space_for(tab, windows, Window, tab->num_windows + 1, capacity, 1, true);
make_os_window_context_current(osw);
memset(tab->windows + tab->num_windows, 0, sizeof(Window));
tab->windows[tab->num_windows].id = ++global_state.window_id_counter;
tab->windows[tab->num_windows].visible = true;
tab->windows[tab->num_windows].title = title;
tab->windows[tab->num_windows].render_data.vao_idx = create_cell_vao();
tab->windows[tab->num_windows].render_data.gvao_idx = create_graphics_vao();
Py_INCREF(tab->windows[tab->num_windows].title);
return tab->windows[tab->num_windows++].id;
END_WITH_TAB;
return 0;
}
static inline void
update_window_title(id_type os_window_id, id_type tab_id, id_type window_id, PyObject *title) {
WITH_TAB(os_window_id, tab_id);
for (size_t i = 0; i < tab->num_windows; i++) {
if (tab->windows[i].id == window_id) {
Py_CLEAR(tab->windows[i].title);
tab->windows[i].title = title;
Py_INCREF(tab->windows[i].title);
break;
}
}
END_WITH_TAB;
}
static inline void
destroy_window(Window *w) {
Py_CLEAR(w->render_data.screen); Py_CLEAR(w->title);
remove_vao(w->render_data.vao_idx); remove_vao(w->render_data.gvao_idx);
}
static inline void
remove_window_inner(Tab *tab, id_type id) {
REMOVER(tab->windows, id, tab->num_windows, Window, destroy_window, tab->capacity);
}
static inline void
remove_window(id_type os_window_id, id_type tab_id, id_type id) {
WITH_TAB(os_window_id, tab_id);
make_os_window_context_current(osw);
remove_window_inner(tab, id);
END_WITH_TAB;
}
static inline void
destroy_tab(Tab *tab) {
for (size_t i = tab->num_windows; i > 0; i--) remove_window_inner(tab, tab->windows[i - 1].id);
remove_vao(tab->border_rects.vao_idx);
free(tab->border_rects.rect_buf); tab->border_rects.rect_buf = NULL;
free(tab->windows); tab->windows = NULL;
}
static inline void
remove_tab_inner(OSWindow *os_window, id_type id) {
make_os_window_context_current(os_window);
REMOVER(os_window->tabs, id, os_window->num_tabs, Tab, destroy_tab, os_window->capacity);
}
static inline void
remove_tab(id_type os_window_id, id_type id) {
WITH_OS_WINDOW(os_window_id)
remove_tab_inner(os_window, id);
END_WITH_OS_WINDOW
}
static inline void
destroy_os_window_item(OSWindow *w) {
for (size_t t = w->num_tabs; t > 0; t--) {
Tab *tab = w->tabs + t - 1;
remove_tab_inner(w, tab->id);
}
Py_CLEAR(w->window_title); Py_CLEAR(w->tab_bar_render_data.screen);
if (w->offscreen_texture_id) free_texture(&w->offscreen_texture_id);
remove_vao(w->tab_bar_render_data.vao_idx);
free(w->tabs); w->tabs = NULL;
}
bool
remove_os_window(id_type os_window_id) {
bool found = false;
WITH_OS_WINDOW(os_window_id)
found = true;
make_os_window_context_current(os_window);
END_WITH_OS_WINDOW
if (found) {
WITH_OS_WINDOW_REFS
REMOVER(global_state.os_windows, os_window_id, global_state.num_os_windows, OSWindow, destroy_os_window_item, global_state.capacity);
END_WITH_OS_WINDOW_REFS
update_os_window_references();
}
return found;
}
static inline void
set_active_tab(id_type os_window_id, unsigned int idx) {
WITH_OS_WINDOW(os_window_id)
os_window->active_tab = idx;
END_WITH_OS_WINDOW
}
static inline void
set_active_window(id_type os_window_id, id_type tab_id, unsigned int idx) {
WITH_TAB(os_window_id, tab_id)
tab->active_window = idx;
END_WITH_TAB;
}
static inline void
swap_tabs(id_type os_window_id, unsigned int a, unsigned int b) {
WITH_OS_WINDOW(os_window_id)
Tab t = os_window->tabs[b];
os_window->tabs[b] = os_window->tabs[a];
os_window->tabs[a] = t;
END_WITH_OS_WINDOW
}
static inline void
swap_windows(id_type os_window_id, id_type tab_id, unsigned int a, unsigned int b) {
WITH_TAB(os_window_id, tab_id);
Window w = tab->windows[b];
tab->windows[b] = tab->windows[a];
tab->windows[a] = w;
END_WITH_TAB;
}
static void
add_borders_rect(id_type os_window_id, id_type tab_id, uint32_t left, uint32_t top, uint32_t right, uint32_t bottom, uint32_t color) {
WITH_TAB(os_window_id, tab_id)
BorderRects *br = &tab->border_rects;
br->is_dirty = true;
if (!left && !top && !right && !bottom) { br->num_border_rects = 0; return; }
ensure_space_for(br, rect_buf, BorderRect, br->num_border_rects + 1, capacity, 32, false);
BorderRect *r = br->rect_buf + br->num_border_rects++;
r->left = left; r->right = right; r->top = top; r->bottom = bottom; r->color = color;
END_WITH_TAB
}
// Python API {{{
#define PYWRAP0(name) static PyObject* py##name(PyObject UNUSED *self)
#define PYWRAP1(name) static PyObject* py##name(PyObject UNUSED *self, PyObject *args)
#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;
#define ONE_UINT(name) PYWRAP1(name) { name((unsigned int)PyLong_AsUnsignedLong(args)); Py_RETURN_NONE; }
#define TWO_UINT(name) PYWRAP1(name) { unsigned int a, b; PA("II", &a, &b); name(a, b); Py_RETURN_NONE; }
#define THREE_UINT(name) PYWRAP1(name) { unsigned int a, b, c; PA("III", &a, &b, &c); name(a, b, c); Py_RETURN_NONE; }
#define TWO_ID(name) PYWRAP1(name) { id_type a, b; PA("KK", &a, &b); name(a, b); Py_RETURN_NONE; }
#define THREE_ID(name) PYWRAP1(name) { id_type a, b, c; PA("KKK", &a, &b, &c); name(a, b, c); Py_RETURN_NONE; }
#define THREE_ID_OBJ(name) PYWRAP1(name) { id_type a, b, c; PyObject *o; PA("KKKO", &a, &b, &c, &o); name(a, b, c, o); Py_RETURN_NONE; }
#define KI(name) PYWRAP1(name) { id_type a; unsigned int b; PA("KI", &a, &b); name(a, b); Py_RETURN_NONE; }
#define KII(name) PYWRAP1(name) { id_type a; unsigned int b, c; PA("KII", &a, &b, &c); name(a, b, c); Py_RETURN_NONE; }
#define KKI(name) PYWRAP1(name) { id_type a, b; unsigned int c; PA("KKI", &a, &b, &c); name(a, b, c); Py_RETURN_NONE; }
#define KKII(name) PYWRAP1(name) { id_type a, b; unsigned int c, d; PA("KKII", &a, &b, &c, &d); name(a, b, c, d); Py_RETURN_NONE; }
#define KK5I(name) PYWRAP1(name) { id_type a, b; unsigned int c, d, e, f, g; PA("KKIIIII", &a, &b, &c, &d, &e, &f, &g); name(a, b, c, d, e, f, g); Py_RETURN_NONE; }
static inline color_type
color_as_int(PyObject *color) {
if (!PyTuple_Check(color)) { PyErr_SetString(PyExc_TypeError, "Not a color tuple"); return 0; }
#define I(n, s) ((PyLong_AsUnsignedLong(PyTuple_GET_ITEM(color, n)) & 0xff) << s)
return (I(0, 16) | I(1, 8) | I(2, 0)) & 0xffffff;
#undef I
}
static inline double
repaint_delay(PyObject *val) {
return (double)(PyLong_AsUnsignedLong(val)) / 1000.0;
}
#define dict_iter(d) { \
PyObject *key, *value; Py_ssize_t pos = 0; \
while (PyDict_Next(d, &pos, &key, &value))
static inline void
set_special_keys(PyObject *dict) {
dict_iter(dict) {
if (!PyTuple_Check(key)) { PyErr_SetString(PyExc_TypeError, "dict keys for special keys must be tuples"); return; }
int mods = PyLong_AsLong(PyTuple_GET_ITEM(key, 0));
int glfw_key = PyLong_AsLong(PyTuple_GET_ITEM(key, 1));
set_special_key_combo(glfw_key, mods);
}}
}
PYWRAP1(handle_for_window_id) {
id_type os_window_id;
PA("K", &os_window_id);
WITH_OS_WINDOW(os_window_id)
return PyLong_FromVoidPtr(os_window->handle);
END_WITH_OS_WINDOW
PyErr_SetString(PyExc_ValueError, "No such window");
return NULL;
}
PYWRAP1(set_options) {
PyObject *ret, *opts;
int is_wayland, debug_gl = 0;
PA("Op|p", &opts, &is_wayland, &debug_gl);
global_state.is_wayland = is_wayland ? true : false;
global_state.debug_gl = debug_gl ? true : false;
#define GA(name) ret = PyObject_GetAttrString(opts, #name); if (ret == NULL) return NULL;
#define S(name, convert) { GA(name); global_state.opts.name = convert(ret); Py_DECREF(ret); if (PyErr_Occurred()) return NULL; }
S(visual_bell_duration, PyFloat_AsDouble);
S(enable_audio_bell, PyObject_IsTrue);
S(focus_follows_mouse, PyObject_IsTrue);
S(cursor_blink_interval, PyFloat_AsDouble);
S(cursor_stop_blinking_after, PyFloat_AsDouble);
S(background_opacity, PyFloat_AsDouble);
S(cursor_shape, PyLong_AsLong);
S(x11_bell_volume, PyLong_AsLong);
S(mouse_hide_wait, PyFloat_AsDouble);
S(wheel_scroll_multiplier, PyFloat_AsDouble);
S(open_url_modifiers, PyLong_AsUnsignedLong);
S(click_interval, PyFloat_AsDouble);
S(url_color, color_as_int);
S(background, color_as_int);
S(repaint_delay, repaint_delay);
S(input_delay, repaint_delay);
S(macos_option_as_alt, PyObject_IsTrue);
S(macos_hide_titlebar, PyObject_IsTrue);
PyObject *chars = PyObject_GetAttrString(opts, "select_by_word_characters");
if (chars == NULL) return NULL;
for (size_t i = 0; i < MIN((size_t)PyUnicode_GET_LENGTH(chars), sizeof(OPT(select_by_word_characters))/sizeof(OPT(select_by_word_characters[0]))); i++) {
OPT(select_by_word_characters)[i] = PyUnicode_READ(PyUnicode_KIND(chars), PyUnicode_DATA(chars), i);
}
OPT(select_by_word_characters_count) = PyUnicode_GET_LENGTH(chars);
Py_DECREF(chars);
GA(keymap); set_special_keys(ret);
Py_DECREF(ret); if (PyErr_Occurred()) return NULL;
PyObject *al = PyObject_GetAttrString(opts, "adjust_line_height");
if (PyFloat_Check(al)) {
OPT(adjust_line_height_frac) = (float)PyFloat_AsDouble(al);
OPT(adjust_line_height_px) = 0;
} else {
OPT(adjust_line_height_frac) = 0;
OPT(adjust_line_height_px) = (int)PyLong_AsLong(al);
}
Py_DECREF(al);
#undef S
Py_RETURN_NONE;
}
PYWRAP1(set_tab_bar_render_data) {
ScreenRenderData d = {0};
id_type os_window_id;
PA("KffffO", &os_window_id, &d.xstart, &d.ystart, &d.dx, &d.dy, &d.screen);
WITH_OS_WINDOW(os_window_id)
Py_CLEAR(os_window->tab_bar_render_data.screen);
d.vao_idx = os_window->tab_bar_render_data.vao_idx;
os_window->tab_bar_render_data = d;
Py_INCREF(os_window->tab_bar_render_data.screen);
END_WITH_OS_WINDOW
Py_RETURN_NONE;
}
PYWRAP1(viewport_for_window) {
id_type os_window_id = 0;
PA("|K", &os_window_id);
WITH_OS_WINDOW(os_window_id)
int available_height = os_window->viewport_height;
if (os_window->num_tabs > 1) available_height -= global_state.cell_height;
return Py_BuildValue("iiiII", os_window->viewport_width, os_window->viewport_height, available_height, global_state.cell_width, global_state.cell_height);
END_WITH_OS_WINDOW
return Py_BuildValue("iiII", 400, 400, global_state.cell_width, global_state.cell_height);
}
PYWRAP1(mark_os_window_for_close) {
id_type os_window_id;
int yes = 1;
PA("K|p", &os_window_id, &yes);
WITH_OS_WINDOW(os_window_id)
mark_os_window_for_close(os_window, yes ? true : false);
Py_RETURN_TRUE;
END_WITH_OS_WINDOW
Py_RETURN_FALSE;
}
PYWRAP1(set_window_render_data) {
#define A(name) &(d.name)
#define B(name) &(g.name)
id_type os_window_id, tab_id;
unsigned int window_idx;
ScreenRenderData d = {0};
WindowGeometry g = {0};
PA("KKIffffOIIII", &os_window_id, &tab_id, &window_idx, A(xstart), A(ystart), A(dx), A(dy), A(screen), B(left), B(top), B(right), B(bottom));
WITH_TAB(os_window_id, tab_id);
Py_CLEAR(tab->windows[window_idx].render_data.screen);
d.vao_idx = tab->windows[window_idx].render_data.vao_idx;
d.gvao_idx = tab->windows[window_idx].render_data.gvao_idx;
tab->windows[window_idx].render_data = d;
tab->windows[window_idx].geometry = g;
Py_INCREF(tab->windows[window_idx].render_data.screen);
END_WITH_TAB;
Py_RETURN_NONE;
#undef A
#undef B
}
PYWRAP1(update_window_visibility) {
id_type os_window_id;
unsigned int window_idx, tab_id;
int visible;
PA("KIIp", &os_window_id, &tab_id, &window_idx, &visible);
WITH_TAB(os_window_id, tab_id);
tab->windows[window_idx].visible = visible & 1;
END_WITH_TAB;
Py_RETURN_NONE;
}
PYWRAP1(set_logical_dpi) {
PA("dd", &global_state.logical_dpi_x, &global_state.logical_dpi_y);
Py_RETURN_NONE;
}
PYWRAP1(set_boss) {
Py_CLEAR(global_state.boss);
global_state.boss = args;
Py_INCREF(global_state.boss);
Py_RETURN_NONE;
}
PYWRAP0(destroy_global_data) {
Py_CLEAR(global_state.boss);
free(global_state.os_windows); global_state.os_windows = NULL;
Py_RETURN_NONE;
}
PYWRAP1(set_display_state) {
int vw, vh;
PA("iiII", &vw, &vh, &global_state.cell_width, &global_state.cell_height);
Py_RETURN_NONE;
}
THREE_ID_OBJ(update_window_title)
THREE_ID(remove_window)
PYWRAP1(add_tab) { return PyLong_FromUnsignedLongLong(add_tab(PyLong_AsUnsignedLongLong(args))); }
PYWRAP1(add_window) { PyObject *title; id_type a, b; PA("KKO", &a, &b, &title); return PyLong_FromUnsignedLongLong(add_window(a, b, title)); }
PYWRAP0(current_os_window) { OSWindow *w = current_os_window(); if (!w) Py_RETURN_NONE; return PyLong_FromUnsignedLongLong(w->id); }
TWO_ID(remove_tab)
KI(set_active_tab)
KKI(set_active_window)
KII(swap_tabs)
KKII(swap_windows)
KK5I(add_borders_rect)
#define M(name, arg_type) {#name, (PyCFunction)name, arg_type, NULL}
#define MW(name, arg_type) {#name, (PyCFunction)py##name, arg_type, NULL}
static PyMethodDef module_methods[] = {
MW(current_os_window, METH_NOARGS),
MW(set_options, METH_VARARGS),
MW(handle_for_window_id, METH_VARARGS),
MW(set_logical_dpi, METH_VARARGS),
MW(add_tab, METH_O),
MW(add_window, METH_VARARGS),
MW(update_window_title, METH_VARARGS),
MW(remove_tab, METH_VARARGS),
MW(remove_window, METH_VARARGS),
MW(set_active_tab, METH_VARARGS),
MW(set_active_window, METH_VARARGS),
MW(swap_tabs, METH_VARARGS),
MW(swap_windows, METH_VARARGS),
MW(add_borders_rect, METH_VARARGS),
MW(set_tab_bar_render_data, METH_VARARGS),
MW(set_window_render_data, METH_VARARGS),
MW(viewport_for_window, METH_VARARGS),
MW(mark_os_window_for_close, METH_VARARGS),
MW(update_window_visibility, METH_VARARGS),
MW(set_boss, METH_O),
MW(set_display_state, METH_VARARGS),
MW(destroy_global_data, METH_NOARGS),
{NULL, NULL, 0, NULL} /* Sentinel */
};
bool
init_state(PyObject *module) {
global_state.cell_width = 1; global_state.cell_height = 1;
if (PyModule_AddFunctions(module, module_methods) != 0) return false;
return true;
}
// }}}
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