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Diffstat (limited to 'twin/compton-tde/compton.h')
| -rw-r--r-- | twin/compton-tde/compton.h | 1345 |
1 files changed, 1345 insertions, 0 deletions
diff --git a/twin/compton-tde/compton.h b/twin/compton-tde/compton.h new file mode 100644 index 000000000..c1c877056 --- /dev/null +++ b/twin/compton-tde/compton.h @@ -0,0 +1,1345 @@ +/** + * compton.h + */ + +// Throw everything in here. + + +// === Includes === + +#include "common.h" + +#include <math.h> +#include <sys/select.h> +#include <limits.h> +#include <unistd.h> +#include <getopt.h> +#include <locale.h> +#include <signal.h> + +#include <sys/types.h> +#include <pwd.h> + +#ifdef CONFIG_VSYNC_DRM +#include <fcntl.h> +// We references some definitions in drm.h, which could also be found in +// /usr/src/linux/include/drm/drm.h, but that path is probably even less +// reliable than libdrm +#include <drm.h> +#include <sys/ioctl.h> +#include <errno.h> +#endif + +// == Functions == + +// inline functions must be made static to compile correctly under clang: +// http://clang.llvm.org/compatibility.html#inline + +// Helper functions + +static void +discard_ignore(session_t *ps, unsigned long sequence); + +static void +set_ignore(session_t *ps, unsigned long sequence); + +/** + * Ignore X errors caused by next X request. + */ +static inline void +set_ignore_next(session_t *ps) { + set_ignore(ps, NextRequest(ps->dpy)); +} + +static int +should_ignore(session_t *ps, unsigned long sequence); + +/** + * Reset filter on a <code>Picture</code>. + */ +static inline void +xrfilter_reset(session_t *ps, Picture p) { + XRenderSetPictureFilter(ps->dpy, p, "Nearest", NULL, 0); +} + +/** + * Subtract two unsigned long values. + * + * Truncate to 0 if the result is negative. + */ +static inline unsigned long __attribute__((const)) +sub_unslong(unsigned long a, unsigned long b) { + return (a > b) ? a - b : 0; +} + +/** + * Set a <code>bool</code> array of all wintypes to true. + */ +static inline void +wintype_arr_enable(bool arr[]) { + wintype_t i; + + for (i = 0; i < NUM_WINTYPES; ++i) { + arr[i] = true; + } +} + +/** + * Set a <code>switch_t</code> array of all unset wintypes to true. + */ +static inline void +wintype_arr_enable_unset(switch_t arr[]) { + wintype_t i; + + for (i = 0; i < NUM_WINTYPES; ++i) + if (UNSET == arr[i]) + arr[i] = ON; +} + +/** + * Check if a window ID exists in an array of window IDs. + * + * @param arr the array of window IDs + * @param count amount of elements in the array + * @param wid window ID to search for + */ +static inline bool +array_wid_exists(const Window *arr, int count, Window wid) { + while (count--) { + if (arr[count] == wid) { + return true; + } + } + + return false; +} + +/** + * Convert a geometry_t value to XRectangle. + */ +static inline XRectangle +geom_to_rect(session_t *ps, const geometry_t *src, const XRectangle *def) { + XRectangle rect_def = { .x = 0, .y = 0, + .width = ps->root_width, .height = ps->root_height }; + if (!def) def = &rect_def; + + XRectangle rect = { .x = src->x, .y = src->y, + .width = src->wid, .height = src->hei }; + if (src->wid < 0) rect.width = def->width; + if (src->hei < 0) rect.height = def->height; + if (-1 == src->x) rect.x = def->x; + else if (src->x < 0) rect.x = ps->root_width + rect.x + 2 - rect.width; + if (-1 == src->y) rect.y = def->y; + else if (src->y < 0) rect.y = ps->root_height + rect.y + 2 - rect.height; + return rect; +} + +/** + * Convert a XRectangle to a XServerRegion. + */ +static inline XserverRegion +rect_to_reg(session_t *ps, const XRectangle *src) { + if (!src) return None; + XRectangle bound = { .x = 0, .y = 0, + .width = ps->root_width, .height = ps->root_height }; + XRectangle res = { }; + rect_crop(&res, src, &bound); + if (res.width && res.height) + return XFixesCreateRegion(ps->dpy, &res, 1); + return None; +} + +/** + * Destroy a <code>Picture</code>. + */ +inline static void +free_picture(session_t *ps, Picture *p) { + if (*p) { + XRenderFreePicture(ps->dpy, *p); + *p = None; + } +} + +/** + * Destroy a <code>Pixmap</code>. + */ +inline static void +free_pixmap(session_t *ps, Pixmap *p) { + if (*p) { + XFreePixmap(ps->dpy, *p); + *p = None; + } +} + +/** + * Destroy a <code>Damage</code>. + */ +inline static void +free_damage(session_t *ps, Damage *p) { + if (*p) { + // BadDamage will be thrown if the window is destroyed + set_ignore_next(ps); + XDamageDestroy(ps->dpy, *p); + *p = None; + } +} + +/** + * Destroy a condition list. + */ +static inline void +free_wincondlst(c2_lptr_t **pcondlst) { +#ifdef CONFIG_C2 + while ((*pcondlst = c2_free_lptr(*pcondlst))) + continue; +#endif +} + +/** + * Free Xinerama screen info. + */ +static inline void +free_xinerama_info(session_t *ps) { +#ifdef CONFIG_XINERAMA + if (ps->xinerama_scr_regs) { + for (int i = 0; i < ps->xinerama_nscrs; ++i) + free_region(ps, &ps->xinerama_scr_regs[i]); + free(ps->xinerama_scr_regs); + } + cxfree(ps->xinerama_scrs); + ps->xinerama_scrs = NULL; + ps->xinerama_nscrs = 0; +#endif +} + +/** + * Check whether a paint_t contains enough data. + */ +static inline bool +paint_isvalid(session_t *ps, const paint_t *ppaint) { + // Don't check for presence of Pixmap here, because older X Composite doesn't + // provide it + if (!ppaint) + return false; + + if (bkend_use_xrender(ps) && !ppaint->pict) + return false; + +#ifdef CONFIG_VSYNC_OPENGL + if (BKEND_GLX == ps->o.backend && !glx_tex_binded(ppaint->ptex, None)) + return false; +#endif + + return true; +} + +/** + * Bind texture in paint_t if we are using GLX backend. + */ +static inline bool +paint_bind_tex_real(session_t *ps, paint_t *ppaint, + unsigned wid, unsigned hei, unsigned depth, bool force) { +#ifdef CONFIG_VSYNC_OPENGL + if (!ppaint->pixmap) + return false; + + if (force || !glx_tex_binded(ppaint->ptex, ppaint->pixmap)) + return glx_bind_pixmap(ps, &ppaint->ptex, ppaint->pixmap, wid, hei, depth); +#endif + + return true; +} + +static inline bool +paint_bind_tex(session_t *ps, paint_t *ppaint, + unsigned wid, unsigned hei, unsigned depth, bool force) { + if (BKEND_GLX == ps->o.backend) + return paint_bind_tex_real(ps, ppaint, wid, hei, depth, force); + return true; +} + +/** + * Free data in a reg_data_t. + */ +static inline void +free_reg_data(reg_data_t *pregd) { + cxfree(pregd->rects); + pregd->rects = NULL; + pregd->nrects = 0; +} + +/** + * Free paint_t. + */ +static inline void +free_paint(session_t *ps, paint_t *ppaint) { + free_paint_glx(ps, ppaint); + free_picture(ps, &ppaint->pict); + free_pixmap(ps, &ppaint->pixmap); +} + +/** + * Free w->paint. + */ +static inline void +free_wpaint(session_t *ps, win *w) { + free_paint(ps, &w->paint); + free_fence(ps, &w->fence); +} + +/** + * Destroy all resources in a <code>struct _win</code>. + */ +static inline void +free_win_res(session_t *ps, win *w) { + free_win_res_glx(ps, w); + free_region(ps, &w->extents); + free_paint(ps, &w->paint); + free_region(ps, &w->border_size); + free_paint(ps, &w->shadow_paint); + free_damage(ps, &w->damage); + free_region(ps, &w->reg_ignore); + free(w->name); + free(w->class_instance); + free(w->class_general); + free(w->role); +} + +/** + * Free root tile related things. + */ +static inline void +free_root_tile(session_t *ps) { + free_picture(ps, &ps->root_tile_paint.pict); + free_texture(ps, &ps->root_tile_paint.ptex); + if (ps->root_tile_fill) + free_pixmap(ps, &ps->root_tile_paint.pixmap); + ps->root_tile_paint.pixmap = None; + ps->root_tile_fill = false; +} + +/** + * Get current system clock in milliseconds. + */ +static inline time_ms_t +get_time_ms(void) { + struct timeval tv; + + gettimeofday(&tv, NULL); + + return tv.tv_sec % SEC_WRAP * 1000 + tv.tv_usec / 1000; +} + +/** + * Convert time from milliseconds to struct timeval. + */ +static inline struct timeval +ms_to_tv(int timeout) { + return (struct timeval) { + .tv_sec = timeout / MS_PER_SEC, + .tv_usec = timeout % MS_PER_SEC * (US_PER_SEC / MS_PER_SEC) + }; +} + +/** + * Whether an event is DamageNotify. + */ +static inline bool +isdamagenotify(session_t *ps, const XEvent *ev) { + return ps->damage_event + XDamageNotify == ev->type; +} + +/** + * Create a XTextProperty of a single string. + */ +static inline XTextProperty * +make_text_prop(session_t *ps, char *str) { + XTextProperty *pprop = ccalloc(1, XTextProperty); + + if (XmbTextListToTextProperty(ps->dpy, &str, 1, XStringStyle, pprop)) { + cxfree(pprop->value); + free(pprop); + pprop = NULL; + } + + return pprop; +} + + +/** + * Set a single-string text property on a window. + */ +static inline bool +wid_set_text_prop(session_t *ps, Window wid, Atom prop_atom, char *str) { + XTextProperty *pprop = make_text_prop(ps, str); + if (!pprop) { + printf_errf("(\"%s\"): Failed to make text property.", str); + return false; + } + + XSetTextProperty(ps->dpy, wid, pprop, prop_atom); + cxfree(pprop->value); + cxfree(pprop); + + return true; +} + +static void +run_fade(session_t *ps, win *w, unsigned steps); + +static void +set_fade_callback(session_t *ps, win *w, + void (*callback) (session_t *ps, win *w), bool exec_callback); + +/** + * Execute fade callback of a window if fading finished. + */ +static inline void +check_fade_fin(session_t *ps, win *w) { + if (w->fade_callback && w->opacity == w->opacity_tgt) { + // Must be the last line as the callback could destroy w! + set_fade_callback(ps, w, NULL, true); + } +} + +static void +set_fade_callback(session_t *ps, win *w, + void (*callback) (session_t *ps, win *w), bool exec_callback); + +static double +gaussian(double r, double x, double y); + +static conv * +make_gaussian_map(double r); + +static unsigned char +sum_gaussian(conv *map, double opacity, + int x, int y, int width, int height); + +static void +presum_gaussian(session_t *ps, conv *map); + +static XImage * +make_shadow(session_t *ps, double opacity, int width, int height); + +static bool +win_build_shadow(session_t *ps, win *w, double opacity); + +static Picture +solid_picture(session_t *ps, bool argb, double a, + double r, double g, double b); + +/** + * Stop listening for events on a particular window. + */ +static inline void +win_ev_stop(session_t *ps, win *w) { + // Will get BadWindow if the window is destroyed + set_ignore_next(ps); + XSelectInput(ps->dpy, w->id, 0); + + if (w->client_win) { + set_ignore_next(ps); + XSelectInput(ps->dpy, w->client_win, 0); + } + + if (ps->shape_exists) { + set_ignore_next(ps); + XShapeSelectInput(ps->dpy, w->id, 0); + } +} + +/** + * Get the children of a window. + * + * @param ps current session + * @param w window to check + * @param children [out] an array of child window IDs + * @param nchildren [out] number of children + * @return 1 if successful, 0 otherwise + */ +static inline bool +wid_get_children(session_t *ps, Window w, + Window **children, unsigned *nchildren) { + Window troot, tparent; + + if (!XQueryTree(ps->dpy, w, &troot, &tparent, children, nchildren)) { + *nchildren = 0; + return false; + } + + return true; +} + +/** + * Check if a window is bounding-shaped. + */ +static inline bool +wid_bounding_shaped(const session_t *ps, Window wid) { + if (ps->shape_exists) { + Bool bounding_shaped = False, clip_shaped = False; + int x_bounding, y_bounding, x_clip, y_clip; + unsigned int w_bounding, h_bounding, w_clip, h_clip; + + XShapeQueryExtents(ps->dpy, wid, &bounding_shaped, + &x_bounding, &y_bounding, &w_bounding, &h_bounding, + &clip_shaped, &x_clip, &y_clip, &w_clip, &h_clip); + return bounding_shaped; + } + + return false; +} + +/** + * Determine if a window change affects <code>reg_ignore</code> and set + * <code>reg_ignore_expire</code> accordingly. + */ +static inline void +update_reg_ignore_expire(session_t *ps, const win *w) { + if (w->to_paint && WMODE_SOLID == w->mode) + ps->reg_ignore_expire = true; +} + +/** + * Check whether a window has WM frames. + */ +static inline bool __attribute__((const)) +win_has_frame(const win *w) { + return w->a.border_width + || w->top_width || w->left_width || w->right_width || w->bottom_width; +} + +static inline void +wid_set_opacity_prop(session_t *ps, Window wid, opacity_t val) { + const unsigned long v = val; + XChangeProperty(ps->dpy, wid, ps->atom_opacity, XA_CARDINAL, 32, + PropModeReplace, (unsigned char *) &v, 1); +} + +static inline void +wid_rm_opacity_prop(session_t *ps, Window wid) { + XDeleteProperty(ps->dpy, wid, ps->atom_opacity); +} + +/** + * Dump an drawable's info. + */ +static inline void +dump_drawable(session_t *ps, Drawable drawable) { + Window rroot = None; + int x = 0, y = 0; + unsigned width = 0, height = 0, border = 0, depth = 0; + if (XGetGeometry(ps->dpy, drawable, &rroot, &x, &y, &width, &height, + &border, &depth)) { + printf_dbgf("(%#010lx): x = %u, y = %u, wid = %u, hei = %d, b = %u, d = %u\n", drawable, x, y, width, height, border, depth); + } + else { + printf_dbgf("(%#010lx): Failed\n", drawable); + } +} + +static void +win_rounded_corners(session_t *ps, win *w); + +/** + * Validate a pixmap. + * + * Detect whether the pixmap is valid with XGetGeometry. Well, maybe there + * are better ways. + */ +static inline bool +validate_pixmap(session_t *ps, Pixmap pxmap) { + if (!pxmap) return false; + + Window rroot = None; + int rx = 0, ry = 0; + unsigned rwid = 0, rhei = 0, rborder = 0, rdepth = 0; + return XGetGeometry(ps->dpy, pxmap, &rroot, &rx, &ry, + &rwid, &rhei, &rborder, &rdepth) && rwid && rhei; +} + +/** + * Validate pixmap of a window, and destroy pixmap and picture if invalid. + */ +static inline void +win_validate_pixmap(session_t *ps, win *w) { + // Destroy pixmap and picture, if invalid + if (!validate_pixmap(ps, w->paint.pixmap)) + free_paint(ps, &w->paint); +} + +/** + * Wrapper of c2_match(). + */ +static inline bool +win_match(session_t *ps, win *w, c2_lptr_t *condlst, const c2_lptr_t **cache) { +#ifdef CONFIG_C2 + return c2_match(ps, w, condlst, cache); +#else + return false; +#endif +} + +static bool +condlst_add(session_t *ps, c2_lptr_t **pcondlst, const char *pattern); + +static long +determine_evmask(session_t *ps, Window wid, win_evmode_t mode); + +/** + * Clear leader cache of all windows. + */ +static void +clear_cache_win_leaders(session_t *ps) { + for (win *w = ps->list; w; w = w->next) + w->cache_leader = None; +} + +static win * +find_toplevel2(session_t *ps, Window wid); + +/** + * Find matched window. + */ +static inline win * +find_win_all(session_t *ps, const Window wid) { + if (!wid || PointerRoot == wid || wid == ps->root || wid == ps->overlay) + return NULL; + + win *w = find_win(ps, wid); + if (!w) w = find_toplevel(ps, wid); + if (!w) w = find_toplevel2(ps, wid); + return w; +} + +static Window +win_get_leader_raw(session_t *ps, win *w, int recursions); + +/** + * Get the leader of a window. + * + * This function updates w->cache_leader if necessary. + */ +static inline Window +win_get_leader(session_t *ps, win *w) { + return win_get_leader_raw(ps, w, 0); +} + +/** + * Return whether a window group is really focused. + * + * @param leader leader window ID + * @return true if the window group is focused, false otherwise + */ +static inline bool +group_is_focused(session_t *ps, Window leader) { + if (!leader) + return false; + + for (win *w = ps->list; w; w = w->next) { + if (win_get_leader(ps, w) == leader && !w->destroyed + && win_is_focused_real(ps, w)) + return true; + } + + return false; +} + +static win * +recheck_focus(session_t *ps); + +static bool +get_root_tile(session_t *ps); + +static void +paint_root(session_t *ps, XserverRegion reg_paint); + +static XserverRegion +win_get_region(session_t *ps, win *w, bool use_offset); + +static XserverRegion +win_get_region_noframe(session_t *ps, win *w, bool use_offset); + +static XserverRegion +win_extents(session_t *ps, win *w); + +static XserverRegion +border_size(session_t *ps, win *w, bool use_offset); + +static Window +find_client_win(session_t *ps, Window w); + +static void +get_frame_extents(session_t *ps, win *w, Window client); + +static win * +paint_preprocess(session_t *ps, win *list); + +static void +render_(session_t *ps, int x, int y, int dx, int dy, int wid, int hei, + double opacity, bool argb, bool neg, + Picture pict, glx_texture_t *ptex, + XserverRegion reg_paint, const reg_data_t *pcache_reg +#ifdef CONFIG_VSYNC_OPENGL_GLSL + , const glx_prog_main_t *pprogram +#endif + ); + +#ifdef CONFIG_VSYNC_OPENGL_GLSL +#define \ + render(ps, x, y, dx, dy, wid, hei, opacity, argb, neg, pict, ptex, reg_paint, pcache_reg, pprogram) \ + render_(ps, x, y, dx, dy, wid, hei, opacity, argb, neg, pict, ptex, reg_paint, pcache_reg, pprogram) +#else +#define \ + render(ps, x, y, dx, dy, wid, hei, opacity, argb, neg, pict, ptex, reg_paint, pcache_reg, pprogram) \ + render_(ps, x, y, dx, dy, wid, hei, opacity, argb, neg, pict, ptex, reg_paint, pcache_reg) +#endif + +static inline void +win_render(session_t *ps, win *w, int x, int y, int wid, int hei, + double opacity, XserverRegion reg_paint, const reg_data_t *pcache_reg, + Picture pict) { + const int dx = (w ? w->a.x: 0) + x; + const int dy = (w ? w->a.y: 0) + y; + const bool argb = (w && (WMODE_ARGB == w->mode || ps->o.force_win_blend)); + const bool neg = (w && w->invert_color); + + render(ps, x, y, dx, dy, wid, hei, opacity, argb, neg, + pict, (w ? w->paint.ptex: ps->root_tile_paint.ptex), + reg_paint, pcache_reg, (w ? &ps->o.glx_prog_win: NULL)); +} + +static inline void +set_tgt_clip(session_t *ps, XserverRegion reg, const reg_data_t *pcache_reg) { + switch (ps->o.backend) { + case BKEND_XRENDER: + case BKEND_XR_GLX_HYBRID: + XFixesSetPictureClipRegion(ps->dpy, ps->tgt_buffer.pict, 0, 0, reg); + break; +#ifdef CONFIG_VSYNC_OPENGL + case BKEND_GLX: + glx_set_clip(ps, reg, pcache_reg); + break; +#endif + } +} + +static bool +xr_blur_dst(session_t *ps, Picture tgt_buffer, + int x, int y, int wid, int hei, XFixed **blur_kerns, + XserverRegion reg_clip); + +/** + * Normalize a convolution kernel. + */ +static inline void +normalize_conv_kern(int wid, int hei, XFixed *kern) { + double sum = 0.0; + for (int i = 0; i < wid * hei; ++i) + sum += XFixedToDouble(kern[i]); + double factor = 1.0 / sum; + for (int i = 0; i < wid * hei; ++i) + kern[i] = XDoubleToFixed(XFixedToDouble(kern[i]) * factor); +} + +static void +paint_all(session_t *ps, XserverRegion region, XserverRegion region_real, win *t); + +static void +add_damage(session_t *ps, XserverRegion damage); + +static void +repair_win(session_t *ps, win *w); + +static wintype_t +wid_get_prop_wintype(session_t *ps, Window w); + +static void +map_win(session_t *ps, Window id); + +static void +finish_map_win(session_t *ps, win *w); + +static void +finish_unmap_win(session_t *ps, win *w); + +static void +unmap_callback(session_t *ps, win *w); + +static void +unmap_win(session_t *ps, win *w); + +static opacity_t +wid_get_opacity_prop(session_t *ps, Window wid, opacity_t def); + +static bool +init_filters(session_t *ps); + +/** + * Reread opacity property of a window. + */ +static inline void +win_update_opacity_prop(session_t *ps, win *w) { + w->opacity_prop = wid_get_opacity_prop(ps, w->id, OPAQUE); + if (!ps->o.detect_client_opacity || !w->client_win + || w->id == w->client_win) + w->opacity_prop_client = OPAQUE; + else + w->opacity_prop_client = wid_get_opacity_prop(ps, w->client_win, + OPAQUE); +} + +static double +get_opacity_percent(win *w); + +static void +win_determine_mode(session_t *ps, win *w); + +static void +calc_opacity(session_t *ps, win *w); + +static void +calc_dim(session_t *ps, win *w); + +static Window +wid_get_prop_window(session_t *ps, Window wid, Atom aprop); + +static void +win_update_leader(session_t *ps, win *w); + +static void +win_set_leader(session_t *ps, win *w, Window leader); + +static void +win_update_focused(session_t *ps, win *w); + +/** + * Run win_update_focused() on all windows with the same leader window. + * + * @param leader leader window ID + */ +static inline void +group_update_focused(session_t *ps, Window leader) { + if (!leader) + return; + + for (win *w = ps->list; w; w = w->next) { + if (win_get_leader(ps, w) == leader && !w->destroyed) + win_update_focused(ps, w); + } + + return; +} + +static inline void +win_set_focused(session_t *ps, win *w, bool focused); + +static void +win_on_focus_change(session_t *ps, win *w); + +static void +win_determine_fade(session_t *ps, win *w); + +static void +win_update_shape_raw(session_t *ps, win *w); + +static void +win_update_shape(session_t *ps, win *w); + +static void +win_update_prop_shadow_raw(session_t *ps, win *w); + +static void +win_update_prop_shadow(session_t *ps, win *w); + +static void +win_set_shadow(session_t *ps, win *w, bool shadow_new); + +static void +win_determine_shadow(session_t *ps, win *w); + +static void +win_set_invert_color(session_t *ps, win *w, bool invert_color_new); + +static void +win_determine_invert_color(session_t *ps, win *w); + +static void +win_set_blur_background(session_t *ps, win *w, bool blur_background_new); + +static void +win_determine_blur_background(session_t *ps, win *w); + +static void +win_on_wtype_change(session_t *ps, win *w); + +static void +win_on_factor_change(session_t *ps, win *w); + +static void +win_upd_run(session_t *ps, win *w, win_upd_t *pupd); + +static void +calc_win_size(session_t *ps, win *w); + +static void +calc_shadow_geometry(session_t *ps, win *w); + +static void +win_upd_wintype(session_t *ps, win *w); + +static void +win_mark_client(session_t *ps, win *w, Window client); + +static void +win_unmark_client(session_t *ps, win *w); + +static void +win_recheck_client(session_t *ps, win *w); + +static bool +add_win(session_t *ps, Window id, Window prev); + +static void +restack_win(session_t *ps, win *w, Window new_above); + +static void +configure_win(session_t *ps, XConfigureEvent *ce); + +static void +circulate_win(session_t *ps, XCirculateEvent *ce); + +static void +finish_destroy_win(session_t *ps, Window id); + +static void +destroy_callback(session_t *ps, win *w); + +static void +destroy_win(session_t *ps, Window id); + +static void +damage_win(session_t *ps, XDamageNotifyEvent *de); + +static int +xerror(Display *dpy, XErrorEvent *ev); + +static void +expose_root(session_t *ps, XRectangle *rects, int nrects); + +static Window +wid_get_prop_window(session_t *ps, Window wid, Atom aprop); + +static bool +wid_get_name(session_t *ps, Window w, char **name); + +static bool +wid_get_role(session_t *ps, Window w, char **role); + +static int +win_get_prop_str(session_t *ps, win *w, char **tgt, + bool (*func_wid_get_prop_str)(session_t *ps, Window wid, char **tgt)); + +static inline int +win_get_name(session_t *ps, win *w) { + int ret = win_get_prop_str(ps, w, &w->name, wid_get_name); + +#ifdef DEBUG_WINDATA + printf_dbgf("(%#010lx): client = %#010lx, name = \"%s\", " + "ret = %d\n", w->id, w->client_win, w->name, ret); +#endif + + return ret; +} + +static inline int +win_get_role(session_t *ps, win *w) { + int ret = win_get_prop_str(ps, w, &w->role, wid_get_role); + +#ifdef DEBUG_WINDATA + printf_dbgf("(%#010lx): client = %#010lx, role = \"%s\", " + "ret = %d\n", w->id, w->client_win, w->role, ret); +#endif + + return ret; +} + +static bool +win_get_class(session_t *ps, win *w); + +#ifdef DEBUG_EVENTS +static int +ev_serial(XEvent *ev); + +static const char * +ev_name(session_t *ps, XEvent *ev); + +static Window +ev_window(session_t *ps, XEvent *ev); +#endif + +static void __attribute__ ((noreturn)) +usage(int ret); + +static bool +register_cm(session_t *ps); + +inline static void +ev_focus_in(session_t *ps, XFocusChangeEvent *ev); + +inline static void +ev_focus_out(session_t *ps, XFocusChangeEvent *ev); + +inline static void +ev_create_notify(session_t *ps, XCreateWindowEvent *ev); + +inline static void +ev_configure_notify(session_t *ps, XConfigureEvent *ev); + +inline static void +ev_destroy_notify(session_t *ps, XDestroyWindowEvent *ev); + +inline static void +ev_map_notify(session_t *ps, XMapEvent *ev); + +inline static void +ev_unmap_notify(session_t *ps, XUnmapEvent *ev); + +inline static void +ev_reparent_notify(session_t *ps, XReparentEvent *ev); + +inline static void +ev_circulate_notify(session_t *ps, XCirculateEvent *ev); + +inline static void +ev_expose(session_t *ps, XExposeEvent *ev); + +static void +update_ewmh_active_win(session_t *ps); + +inline static void +ev_property_notify(session_t *ps, XPropertyEvent *ev); + +inline static void +ev_damage_notify(session_t *ps, XDamageNotifyEvent *ev); + +inline static void +ev_shape_notify(session_t *ps, XShapeEvent *ev); + +/** + * Get a region of the screen size. + */ +inline static XserverRegion +get_screen_region(session_t *ps) { + XRectangle r; + + r.x = 0; + r.y = 0; + r.width = ps->root_width; + r.height = ps->root_height; + return XFixesCreateRegion(ps->dpy, &r, 1); +} + +/** + * Resize a region. + */ +static inline void +resize_region(session_t *ps, XserverRegion region, short mod) { + if (!mod || !region) return; + + int nrects = 0, nnewrects = 0; + XRectangle *newrects = NULL; + XRectangle *rects = XFixesFetchRegion(ps->dpy, region, &nrects); + if (!rects || !nrects) + goto resize_region_end; + + // Allocate memory for new rectangle list, because I don't know if it's + // safe to write in the memory Xlib allocates + newrects = calloc(nrects, sizeof(XRectangle)); + if (!newrects) { + printf_errf("(): Failed to allocate memory."); + exit(1); + } + + // Loop through all rectangles + for (int i = 0; i < nrects; ++i) { + int x1 = max_i(rects[i].x - mod, 0); + int y1 = max_i(rects[i].y - mod, 0); + int x2 = min_i(rects[i].x + rects[i].width + mod, ps->root_width); + int y2 = min_i(rects[i].y + rects[i].height + mod, ps->root_height); + int wid = x2 - x1; + int hei = y2 - y1; + if (wid <= 0 || hei <= 0) + continue; + newrects[nnewrects].x = x1; + newrects[nnewrects].y = y1; + newrects[nnewrects].width = wid; + newrects[nnewrects].height = hei; + ++nnewrects; + } + + // Set region + XFixesSetRegion(ps->dpy, region, newrects, nnewrects); + +resize_region_end: + cxfree(rects); + free(newrects); +} + +/** + * Dump a region. + */ +static inline void +dump_region(const session_t *ps, XserverRegion region) { + int nrects = 0; + XRectangle *rects = NULL; + if (!rects && region) + rects = XFixesFetchRegion(ps->dpy, region, &nrects); + + printf_dbgf("(%#010lx): %d rects\n", region, nrects); + if (!rects) return; + for (int i = 0; i < nrects; ++i) + printf("Rect #%d: %8d, %8d, %8d, %8d\n", i, rects[i].x, rects[i].y, + rects[i].width, rects[i].height); + putchar('\n'); + fflush(stdout); + + cxfree(rects); +} + +/** + * Check if a region is empty. + * + * Keith Packard said this is slow: + * http://lists.freedesktop.org/archives/xorg/2007-November/030467.html + * + * @param ps current session + * @param region region to check for + * @param pcache_rects a place to cache the dumped rectangles + * @param ncache_nrects a place to cache the number of dumped rectangles + */ +static inline bool +is_region_empty(const session_t *ps, XserverRegion region, + reg_data_t *pcache_reg) { + int nrects = 0; + XRectangle *rects = XFixesFetchRegion(ps->dpy, region, &nrects); + + if (pcache_reg) { + pcache_reg->rects = rects; + pcache_reg->nrects = nrects; + } + else + cxfree(rects); + + return !nrects; +} + +/** + * Add a window to damaged area. + * + * @param ps current session + * @param w struct _win element representing the window + */ +static inline void +add_damage_win(session_t *ps, win *w) { + if (w->extents) { + add_damage(ps, copy_region(ps, w->extents)); + } +} + +#if defined(DEBUG_EVENTS) || defined(DEBUG_RESTACK) +static bool +ev_window_name(session_t *ps, Window wid, char **name); +#endif + +inline static void +ev_handle(session_t *ps, XEvent *ev); + +static bool +fork_after(session_t *ps); + +#ifdef CONFIG_LIBCONFIG +/** + * Wrapper of libconfig's <code>config_lookup_int</code>. + * + * To convert <code>int</code> value <code>config_lookup_bool</code> + * returns to <code>bool</code>. + */ +static inline void +lcfg_lookup_bool(const config_t *config, const char *path, + bool *value) { + int ival; + + if (config_lookup_bool(config, path, &ival)) + *value = ival; +} + +/** + * Wrapper of libconfig's <code>config_lookup_int</code>. + * + * To deal with the different value types <code>config_lookup_int</code> + * returns in libconfig-1.3 and libconfig-1.4. + */ +static inline int +lcfg_lookup_int(const config_t *config, const char *path, int *value) { +#ifndef CONFIG_LIBCONFIG_LEGACY + return config_lookup_int(config, path, value); +#else + long lval; + int ret; + + if ((ret = config_lookup_int(config, path, &lval))) + *value = lval; + + return ret; +#endif +} + +static FILE * +open_config_file(char *cpath, char **path); + +static void +parse_cfg_condlst(session_t *ps, const config_t *pcfg, c2_lptr_t **pcondlst, + const char *name); + +static void +parse_config(session_t *ps, struct options_tmp *pcfgtmp); +#endif + +static void +get_cfg(session_t *ps, int argc, char *const *argv, bool first_pass); + +static void +init_atoms(session_t *ps); + +static void +update_refresh_rate(session_t *ps); + +static bool +swopti_init(session_t *ps); + +static void +swopti_handle_timeout(session_t *ps, struct timeval *ptv); + +#ifdef CONFIG_VSYNC_OPENGL +/** + * Ensure we have a GLX context. + */ +static inline bool +ensure_glx_context(session_t *ps) { + // Create GLX context + if (!glx_has_context(ps)) + glx_init(ps, false); + + return ps->psglx->context; +} +#endif + +static bool +vsync_drm_init(session_t *ps); + +#ifdef CONFIG_VSYNC_DRM +static int +vsync_drm_wait(session_t *ps); +#endif + +static bool +vsync_opengl_init(session_t *ps); + +static bool +vsync_opengl_oml_init(session_t *ps); + +static bool +vsync_opengl_swc_init(session_t *ps); + +static bool +vsync_opengl_mswc_init(session_t *ps); + +#ifdef CONFIG_VSYNC_OPENGL +static int +vsync_opengl_wait(session_t *ps); + +static int +vsync_opengl_oml_wait(session_t *ps); + +static void +vsync_opengl_swc_deinit(session_t *ps); + +static void +vsync_opengl_mswc_deinit(session_t *ps); +#endif + +static void +vsync_wait(session_t *ps); + +static void +init_alpha_picts(session_t *ps); + +static bool +init_dbe(session_t *ps); + +static bool +init_overlay(session_t *ps); + +static void +redir_start(session_t *ps); + +static void +redir_stop(session_t *ps); + +static inline time_ms_t +timeout_get_newrun(const timeout_t *ptmout) { + return ptmout->firstrun + (max_l((ptmout->lastrun + (time_ms_t) (ptmout->interval * TIMEOUT_RUN_TOLERANCE) - ptmout->firstrun) / ptmout->interval, (ptmout->lastrun + (time_ms_t) (ptmout->interval * (1 - TIMEOUT_RUN_TOLERANCE)) - ptmout->firstrun) / ptmout->interval) + 1) * ptmout->interval; +} + +static time_ms_t +timeout_get_poll_time(session_t *ps); + +static void +timeout_clear(session_t *ps); + +static bool +tmout_unredir_callback(session_t *ps, timeout_t *tmout); + +static bool +mainloop(session_t *ps); + +#ifdef CONFIG_XINERAMA +static void +cxinerama_upd_scrs(session_t *ps); +#endif + +/** + * Get the Xinerama screen a window is on. + * + * Return an index >= 0, or -1 if not found. + */ +static inline void +cxinerama_win_upd_scr(session_t *ps, win *w) { +#ifdef CONFIG_XINERAMA + w->xinerama_scr = -1; + for (XineramaScreenInfo *s = ps->xinerama_scrs; + s < ps->xinerama_scrs + ps->xinerama_nscrs; ++s) + if (s->x_org <= w->a.x && s->y_org <= w->a.y + && s->x_org + s->width >= w->a.x + w->widthb + && s->y_org + s->height >= w->a.y + w->heightb) { + w->xinerama_scr = s - ps->xinerama_scrs; + return; + } +#endif +} + +static void +cxinerama_upd_scrs(session_t *ps); + +static session_t * +session_init(session_t *ps_old, int argc, char **argv); + +static void +session_destroy(session_t *ps); + +static void +session_run(session_t *ps); + +static void +reset_enable(int __attribute__((unused)) signum); |