Improvement: Stop painting on regions of higher windows
Sort of reverts cdf7db750d, but implements in a different way. (Well,
maybe the pre-cdf7db750d way is actually better, if I'm willing to
sacrifice some precious code reusability.) Basically, trading CPU for
GPU, in an attempt to solve farseerfc and ichi-no-eda's problems. Highly
experimental, could be revoked at any moment.
This commit is contained in:
Richard Grenville
parent
07e4420ab4
commit
b78ab316fd
325
src/compton.c
325
src/compton.c
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@ -57,6 +57,8 @@ Picture *alpha_picts = NULL;
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/// Whether the program is idling. I.e. no fading, no potential window
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/// changes.
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Bool idling;
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/// Whether all reg_ignore of windows should expire in this paint.
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Bool reg_ignore_expire = False;
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/// Window ID of the window we register as a symbol.
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Window reg_win = 0;
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@ -1160,6 +1162,36 @@ paint_root(Display *dpy) {
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root_width, root_height);
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}
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/**
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* Get a rectangular region a window occupies, excluding shadow.
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*/
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static XserverRegion
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win_get_region(Display *dpy, win *w) {
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XRectangle r;
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r.x = w->a.x;
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r.y = w->a.y;
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r.width = w->widthb;
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r.height = w->heightb;
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return XFixesCreateRegion(dpy, &r, 1);
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}
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/**
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* Get a rectangular region a window occupies, excluding frame and shadow.
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*/
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static XserverRegion
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win_get_region_noframe(Display *dpy, win *w) {
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XRectangle r;
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r.x = w->a.x + w->left_width;
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r.y = w->a.y + w->top_width;
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r.width = w->a.width;
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r.height = w->a.height;
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return XFixesCreateRegion(dpy, &r, 1);
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}
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/**
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* Get a rectangular region a window (and possibly its shadow) occupies.
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*
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@ -1306,11 +1338,17 @@ paint_preprocess(Display *dpy, win *list) {
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+ FADE_DELTA_TOLERANCE * opts.fade_delta) / opts.fade_delta;
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fade_time += steps * opts.fade_delta;
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XserverRegion last_reg_ignore = None;
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for (w = list; w; w = next) {
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// In case calling the fade callback function destroys this window
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next = w->next;
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opacity_t opacity_old = w->opacity;
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// Destroy reg_ignore on all windows if they should expire
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if (reg_ignore_expire)
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free_region(dpy, &w->reg_ignore);
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#if CAN_DO_USABLE
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if (!w->usable) continue;
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#endif
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@ -1332,7 +1370,10 @@ paint_preprocess(Display *dpy, win *list) {
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add_damage_win(dpy, w);
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}
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if (!w->opacity) {
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w->alpha_pict = get_alpha_pict_o(w->opacity);
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// End the game if we are using the 0 opacity alpha_pict
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if (w->alpha_pict == alpha_picts[0]) {
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check_fade_fin(dpy, w);
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continue;
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}
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@ -1370,13 +1411,20 @@ paint_preprocess(Display *dpy, win *list) {
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add_damage_win(dpy, w);
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}
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w->alpha_pict = get_alpha_pict_o(w->opacity);
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// Calculate frame_opacity
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if (opts.frame_opacity && 1.0 != opts.frame_opacity && w->top_width)
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w->frame_opacity = get_opacity_percent(dpy, w) * opts.frame_opacity;
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else
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w->frame_opacity = 0.0;
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{
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double frame_opacity_old = w->frame_opacity;
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if (opts.frame_opacity && 1.0 != opts.frame_opacity
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&& w->top_width)
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w->frame_opacity = get_opacity_percent(dpy, w) *
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opts.frame_opacity;
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else
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w->frame_opacity = 0.0;
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if ((0.0 == frame_opacity_old) != (0.0 == w->frame_opacity))
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reg_ignore_expire = True;
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}
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w->frame_alpha_pict = get_alpha_pict_d(w->frame_opacity);
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@ -1397,6 +1445,34 @@ paint_preprocess(Display *dpy, win *list) {
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w->shadow_alpha_pict = get_alpha_pict_d(w->shadow_opacity);
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// Generate ignore region for painting to reduce GPU load
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if (reg_ignore_expire) {
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free_region(dpy, &w->reg_ignore);
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// If the window is solid, we add the window region to the
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// ignored region
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if (WINDOW_SOLID == w->mode) {
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if (!w->frame_opacity)
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w->reg_ignore = win_get_region(dpy, w);
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else
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w->reg_ignore = win_get_region_noframe(dpy, w);
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XFixesIntersectRegion(dpy, w->reg_ignore, w->reg_ignore,
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w->border_size);
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if (last_reg_ignore)
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XFixesUnionRegion(dpy, w->reg_ignore, w->reg_ignore,
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last_reg_ignore);
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}
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// Otherwise we copy the last region over
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else if (last_reg_ignore)
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w->reg_ignore = copy_region(dpy, last_reg_ignore);
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else
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w->reg_ignore = None;
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}
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last_reg_ignore = w->reg_ignore;
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// Reset flags
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w->flags = 0;
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@ -1407,13 +1483,89 @@ paint_preprocess(Display *dpy, win *list) {
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return t;
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}
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/**
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* Paint the shadow of a window.
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*/
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static inline void
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win_paint_shadow(Display *dpy, win *w, Picture root_buffer) {
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XRenderComposite(
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dpy, PictOpOver, w->shadow_pict, w->shadow_alpha_pict,
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root_buffer, 0, 0, 0, 0,
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w->a.x + w->shadow_dx, w->a.y + w->shadow_dy,
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w->shadow_width, w->shadow_height);
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}
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/**
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* Paint a window itself and dim it if asked.
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*/
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static inline void
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win_paint_win(Display *dpy, win *w, Picture root_buffer) {
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#if HAS_NAME_WINDOW_PIXMAP
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int x = w->a.x;
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int y = w->a.y;
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int wid = w->widthb;
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int hei = w->heightb;
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#else
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int x = w->a.x + w->a.border_width;
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int y = w->a.y + w->a.border_width;
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int wid = w->a.width;
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int hei = w->a.height;
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#endif
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Picture alpha_mask = (OPAQUE == w->opacity ? None: w->alpha_pict);
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int op = (w->mode == WINDOW_SOLID ? PictOpSrc: PictOpOver);
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if (!w->frame_opacity) {
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XRenderComposite(dpy, op, w->picture, alpha_mask,
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root_buffer, 0, 0, 0, 0, x, y, wid, hei);
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}
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else {
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unsigned int t = w->top_width;
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unsigned int l = w->left_width;
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unsigned int b = w->bottom_width;
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unsigned int r = w->right_width;
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// top
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XRenderComposite(dpy, PictOpOver, w->picture, w->frame_alpha_pict,
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root_buffer, 0, 0, 0, 0, x, y, wid, t);
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// left
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XRenderComposite(dpy, PictOpOver, w->picture, w->frame_alpha_pict,
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root_buffer, 0, t, 0, t, x, y + t, l, hei - t);
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// bottom
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XRenderComposite(dpy, PictOpOver, w->picture, w->frame_alpha_pict,
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root_buffer, l, hei - b, l, hei - b, x + l, y + hei - b, wid - l - r, b);
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// right
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XRenderComposite(dpy, PictOpOver, w->picture, w->frame_alpha_pict,
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root_buffer, wid - r, t, wid - r, t, x + wid - r, y + t, r, hei - t);
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// body
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XRenderComposite(dpy, op, w->picture, alpha_mask, root_buffer,
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l, t, l, t, x + l, y + t, wid - l - r, hei - t - b);
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}
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// Dimming the window if needed
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if (w->dim) {
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XRenderComposite(dpy, PictOpOver, dim_picture, None,
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root_buffer, 0, 0, 0, 0, x, y, wid, hei);
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}
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}
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static void
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paint_all(Display *dpy, XserverRegion region, win *t) {
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win *w;
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XserverRegion reg_paint = None, reg_tmp = None, reg_tmp2 = None;
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if (!region) {
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region = get_screen_region(dpy);
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}
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else {
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// Remove the damaged area out of screen
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XFixesIntersectRegion(dpy, region, region, get_screen_region(dpy));
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}
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#ifdef MONITOR_REPAINT
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root_buffer = root_picture;
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@ -1440,97 +1592,85 @@ paint_all(Display *dpy, XserverRegion region, win *t) {
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root_width, root_height);
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#endif
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paint_root(dpy);
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#ifdef DEBUG_REPAINT
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print_timestamp();
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printf("paint:");
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#endif
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if (t && t->reg_ignore) {
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// Calculate the region upon which the root window is to be painted
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// based on the ignore region of the lowest window, if available
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reg_paint = reg_tmp = XFixesCreateRegion(dpy, NULL, 0);
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XFixesSubtractRegion(dpy, reg_paint, region, t->reg_ignore);
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}
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else {
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reg_paint = region;
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}
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XFixesSetPictureClipRegion(dpy, root_buffer, 0, 0, reg_paint);
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paint_root(dpy);
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// Create temporary regions for use during painting
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if (!reg_tmp)
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reg_tmp = XFixesCreateRegion(dpy, NULL, 0);
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reg_tmp2 = XFixesCreateRegion(dpy, NULL, 0);
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for (w = t; w; w = w->prev_trans) {
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int x, y, wid, hei;
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#if HAS_NAME_WINDOW_PIXMAP
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x = w->a.x;
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y = w->a.y;
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wid = w->widthb;
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hei = w->heightb;
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#else
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x = w->a.x + w->a.border_width;
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y = w->a.y + w->a.border_width;
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wid = w->a.width;
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hei = w->a.height;
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#endif
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#ifdef DEBUG_REPAINT
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printf(" %#010lx", w->id);
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#endif
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// Allow shadow to be painted anywhere in the damaged region
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XFixesSetPictureClipRegion(dpy, root_buffer, 0, 0, region);
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// Painting shadow
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if (w->shadow) {
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XRenderComposite(
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dpy, PictOpOver, w->shadow_pict, w->shadow_alpha_pict,
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root_buffer, 0, 0, 0, 0,
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w->a.x + w->shadow_dx, w->a.y + w->shadow_dy,
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w->shadow_width, w->shadow_height);
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// Shadow is to be painted based on the ignore region of current
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// window
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if (w->reg_ignore) {
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if (w == t) {
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// If it's the first cycle and reg_tmp2 is not ready, calculate
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// the paint region here
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reg_paint = reg_tmp;
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XFixesSubtractRegion(dpy, reg_paint, region, w->reg_ignore);
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}
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else {
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// Otherwise, used the cached region during last cycle
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reg_paint = reg_tmp2;
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}
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XFixesIntersectRegion(dpy, reg_paint, reg_paint, w->extents);
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}
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else {
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reg_paint = region;
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}
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// Detect if the region is empty before painting
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if (region == reg_paint || !is_region_empty(dpy, reg_paint)) {
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XFixesSetPictureClipRegion(dpy, root_buffer, 0, 0, reg_paint);
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win_paint_shadow(dpy, w, root_buffer);
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}
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}
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// The window only could be painted in its bounding region
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XserverRegion paint_reg = XFixesCreateRegion(dpy, NULL, 0);
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XFixesIntersectRegion(dpy, paint_reg, region, w->border_size);
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XFixesSetPictureClipRegion(dpy, root_buffer, 0, 0, paint_reg);
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Picture alpha_mask = (OPAQUE == w->opacity ? None: w->alpha_pict);
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int op = (w->mode == WINDOW_SOLID ? PictOpSrc: PictOpOver);
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// Painting the window
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if (!w->frame_opacity) {
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XRenderComposite(dpy, op, w->picture, alpha_mask,
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root_buffer, 0, 0, 0, 0, x, y, wid, hei);
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// Calculate the region based on the reg_ignore of the next (higher)
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// window and the bounding region
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reg_paint = reg_tmp;
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if (w->prev_trans && w->prev_trans->reg_ignore) {
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XFixesSubtractRegion(dpy, reg_paint, region,
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w->prev_trans->reg_ignore);
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// Copy the subtracted region to be used for shadow painting in next
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// cycle
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XFixesCopyRegion(dpy, reg_tmp2, reg_paint);
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XFixesIntersectRegion(dpy, reg_paint, reg_paint, w->border_size);
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}
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else {
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unsigned int t = w->top_width;
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unsigned int l = w->left_width;
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unsigned int b = w->bottom_width;
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unsigned int r = w->right_width;
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/* top */
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XRenderComposite(
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dpy, PictOpOver, w->picture, w->frame_alpha_pict, root_buffer,
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0, 0, 0, 0, x, y, wid, t);
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/* left */
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XRenderComposite(
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dpy, PictOpOver, w->picture, w->frame_alpha_pict, root_buffer,
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0, t, 0, t, x, y + t, l, hei - t);
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/* bottom */
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XRenderComposite(
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dpy, PictOpOver, w->picture, w->frame_alpha_pict, root_buffer,
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l, hei - b, l, hei - b, x + l, y + hei - b, wid - l - r, b);
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/* right */
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XRenderComposite(
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dpy, PictOpOver, w->picture, w->frame_alpha_pict, root_buffer,
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wid - r, t, wid - r, t, x + wid - r, y + t, r, hei - t);
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/* body */
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XRenderComposite(
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dpy, op, w->picture, alpha_mask, root_buffer,
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l, t, l, t, x + l, y + t, wid - l - r, hei - t - b);
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XFixesIntersectRegion(dpy, reg_paint, region, w->border_size);
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}
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// Dimming the window if needed
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if (w->dim) {
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XRenderComposite(dpy, PictOpOver, dim_picture, None,
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root_buffer, 0, 0, 0, 0, x, y, wid, hei);
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}
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if (!is_region_empty(dpy, reg_paint)) {
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XFixesSetPictureClipRegion(dpy, root_buffer, 0, 0, reg_paint);
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XFixesDestroyRegion(dpy, paint_reg);
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// Painting the window
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win_paint_win(dpy, w, root_buffer);
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}
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check_fade_fin(dpy, w);
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}
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@ -1540,7 +1680,10 @@ paint_all(Display *dpy, XserverRegion region, win *t) {
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fflush(stdout);
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#endif
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// Free up all temporary regions
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XFixesDestroyRegion(dpy, region);
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XFixesDestroyRegion(dpy, reg_tmp);
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XFixesDestroyRegion(dpy, reg_tmp2);
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if (root_buffer != root_picture) {
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XFixesSetPictureClipRegion(dpy, root_buffer, 0, 0, None);
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@ -1578,6 +1721,10 @@ repair_win(Display *dpy, win *w) {
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w->a.y + w->a.border_width);
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}
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// Remove the part in the damage area that could be ignored
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if (!reg_ignore_expire && w->prev_trans && w->prev_trans->reg_ignore)
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XFixesSubtractRegion(dpy, parts, parts, w->prev_trans->reg_ignore);
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add_damage(dpy, parts);
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w->damaged = 1;
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}
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@ -1622,6 +1769,8 @@ map_win(Display *dpy, Window id,
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if (!w) return;
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reg_ignore_expire = True;
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w->focused = False;
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w->a.map_state = IsViewable;
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@ -1774,6 +1923,8 @@ unmap_win(Display *dpy, Window id, Bool fade) {
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if (!w) return;
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reg_ignore_expire = True;
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w->a.map_state = IsUnmapped;
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// Fading out
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@ -1840,6 +1991,11 @@ determine_mode(Display *dpy, win *w) {
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mode = WINDOW_SOLID;
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}
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// Expire reg_ignore if the window mode changes from solid to not, or
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// vice versa
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if ((WINDOW_SOLID == mode) != (WINDOW_SOLID == w->mode))
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reg_ignore_expire = True;
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w->mode = mode;
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}
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@ -2066,6 +2222,7 @@ add_win(Display *dpy, Window id, Window prev, Bool override_redirect) {
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new->rounded_corners = False;
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new->border_size = None;
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new->reg_ignore = None;
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new->extents = None;
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new->shadow = False;
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new->shadow_opacity = 0.0;
|
||||
|
|
@ -2091,7 +2248,7 @@ add_win(Display *dpy, Window id, Window prev, Bool override_redirect) {
|
|||
new->need_configure = False;
|
||||
new->window_type = WINTYPE_UNKNOWN;
|
||||
|
||||
new->prev_trans = 0;
|
||||
new->prev_trans = NULL;
|
||||
|
||||
new->left_width = 0;
|
||||
new->right_width = 0;
|
||||
|
|
@ -2202,6 +2359,8 @@ configure_win(Display *dpy, XConfigureEvent *ce) {
|
|||
restack_win(dpy, w, ce->above);
|
||||
}
|
||||
|
||||
reg_ignore_expire = True;
|
||||
|
||||
w->need_configure = False;
|
||||
|
||||
#if CAN_DO_USABLE
|
||||
|
|
@ -2274,6 +2433,7 @@ finish_destroy_win(Display *dpy, Window id) {
|
|||
|
||||
free_picture(dpy, &w->shadow_pict);
|
||||
free_damage(dpy, &w->damage);
|
||||
free_region(dpy, &w->reg_ignore);
|
||||
free(w->name);
|
||||
free(w->class_instance);
|
||||
free(w->class_general);
|
||||
|
|
@ -4213,6 +4373,8 @@ main(int argc, char **argv) {
|
|||
if (VSYNC_SW == opts.vsync)
|
||||
paint_tm_offset = get_time_timespec().tv_nsec;
|
||||
|
||||
reg_ignore_expire = True;
|
||||
|
||||
t = paint_preprocess(dpy, list);
|
||||
|
||||
paint_all(dpy, None, t);
|
||||
|
|
@ -4237,7 +4399,7 @@ main(int argc, char **argv) {
|
|||
|
||||
t = paint_preprocess(dpy, list);
|
||||
|
||||
if (all_damage) {
|
||||
if (all_damage && !is_region_empty(dpy, all_damage)) {
|
||||
#ifdef DEBUG_REPAINT
|
||||
struct timespec now = get_time_timespec();
|
||||
struct timespec diff = { 0 };
|
||||
|
|
@ -4248,6 +4410,7 @@ main(int argc, char **argv) {
|
|||
|
||||
static int paint;
|
||||
paint_all(dpy, all_damage, t);
|
||||
reg_ignore_expire = False;
|
||||
paint++;
|
||||
XSync(dpy, False);
|
||||
all_damage = None;
|
||||
|
|
|
|||
|
|
@ -276,6 +276,11 @@ typedef struct _win {
|
|||
|
||||
Bool need_configure;
|
||||
XConfigureEvent queue_configure;
|
||||
/// Region to be ignored when painting. Basically the region where
|
||||
/// higher opaque windows will paint upon. Depends on window frame
|
||||
/// opacity state, window geometry, window mapped/unmapped state,
|
||||
/// window mode, of this and all higher windows.
|
||||
XserverRegion reg_ignore;
|
||||
|
||||
struct _win *prev_trans;
|
||||
} win;
|
||||
|
|
@ -1038,6 +1043,39 @@ copy_region(Display *dpy, XserverRegion oldregion) {
|
|||
return region;
|
||||
}
|
||||
|
||||
/**
|
||||
* Dump a region.
|
||||
*/
|
||||
static inline void
|
||||
dump_region(Display *dpy, XserverRegion region) {
|
||||
int nrects = 0, i;
|
||||
XRectangle *rects = XFixesFetchRegion(dpy, region, &nrects);
|
||||
if (!rects)
|
||||
return;
|
||||
|
||||
for (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);
|
||||
|
||||
XFree(rects);
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if a region is empty.
|
||||
*
|
||||
* Keith Packard said this is slow:
|
||||
* http://lists.freedesktop.org/archives/xorg/2007-November/030467.html
|
||||
*/
|
||||
static inline Bool
|
||||
is_region_empty(Display *dpy, XserverRegion region) {
|
||||
int nrects = 0;
|
||||
XRectangle *rects = XFixesFetchRegion(dpy, region, &nrects);
|
||||
|
||||
XFree(rects);
|
||||
|
||||
return !nrects;
|
||||
}
|
||||
|
||||
/**
|
||||
* Add a window to damaged area.
|
||||
*
|
||||
|
|
|
|||
Loading…
Reference in New Issue