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win: update window's image lazily 

Use a flag to mark whether the image needs update, and only update once
per frame.

Also refactor some common code into functions, and handle image errors
properly.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui 2019-03-16 20:14:54 +00:00
parent b0820d847c
commit 8dc250a415
No known key found for this signature in database
GPG Key ID: 37C999F617EA1A47
5 changed files with 106 additions and 89 deletions
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2
src/backend/gl/glx.c
View File

@ -374,7 +374,7 @@ glx_bind_pixmap(backend_t *base, xcb_pixmap_t pixmap, struct xvisual_info fmt, b
}
log_debug("depth %d, rgba %d", fmt.visual_depth,
(fbcfg->texture_fmt = GLX_TEXTURE_FORMAT_RGBA_EXT));
(fbcfg->texture_fmt == GLX_TEXTURE_FORMAT_RGBA_EXT));
GLint attrs[] = {
GLX_TEXTURE_FORMAT_EXT,

7
src/common.h
View File

@ -118,13 +118,6 @@
// Window flags
// Window size is changed
#define WFLAG_SIZE_CHANGE 0x0001
// Window size/position is changed
#define WFLAG_POS_CHANGE 0x0002
// Window opacity / dim state changed
#define WFLAG_OPCT_CHANGE 0x0004
// === Types ===
typedef struct glx_fbconfig glx_fbconfig_t;

40
src/compton.c
View File

@ -264,8 +264,8 @@ static bool run_fade(session_t *ps, win **_w, unsigned steps) {
}
}
// Note even if opacity == opacity_tgt, we still want to run preprocess one last
// time to finish state transition. So return true in that case too.
// Note even if opacity == opacity_tgt here, we still want to run preprocess one
// last time to finish state transition. So return true in that case too.
return true;
}
@ -564,8 +564,18 @@ static win *paint_preprocess(session_t *ps, bool *fade_running) {
unredir_possible = true;
}
// Reset flags
w->flags = 0;
if ((w->flags & WIN_FLAGS_STALE_IMAGE) != 0 &&
(w->flags & WIN_FLAGS_IMAGE_ERROR) == 0) {
// Image needs to be updated
w->flags &= ~WIN_FLAGS_STALE_IMAGE;
if (w->state != WSTATE_UNMAPPING && w->state != WSTATE_DESTROYING) {
// If this window doesn't have an image available, don't
// try to rebind it
if (!win_try_rebind_image(ps, w)) {
w->flags |= WIN_FLAGS_IMAGE_ERROR;
}
}
}
w->prev_trans = t;
t = w;
@ -1887,17 +1897,8 @@ static bool redir_start(session_t *ps) {
for (win *w = ps->list; w; w = w->next) {
if (w->a.map_state == XCB_MAP_STATE_VIEWABLE) {
auto pixmap = xcb_generate_id(ps->c);
xcb_composite_name_window_pixmap(ps->c, w->id, pixmap);
w->win_image = ps->backend_data->ops->bind_pixmap(
ps->backend_data, pixmap,
x_get_visual_info(ps->c, w->a.visual), true);
if (w->shadow) {
w->shadow_image = ps->backend_data->ops->render_shadow(
ps->backend_data, w->widthb, w->heightb,
ps->gaussian_map, ps->o.shadow_red,
ps->o.shadow_green, ps->o.shadow_blue,
ps->o.shadow_opacity);
if (!win_bind_image(ps, w)) {
w->flags |= WIN_FLAGS_IMAGE_ERROR;
}
}
}
@ -1957,14 +1958,7 @@ static void redir_stop(session_t *ps) {
}
if (ps->o.experimental_backends) {
if (w->state == WSTATE_MAPPED) {
ps->backend_data->ops->release_image(
ps->backend_data, w->win_image);
if (w->shadow_image) {
ps->backend_data->ops->release_image(
ps->backend_data, w->shadow_image);
}
w->win_image = NULL;
w->shadow_image = NULL;
win_release_image(ps->backend_data, w);
} else {
assert(!w->win_image);
assert(!w->shadow_image);

121
src/win.c
View File

@ -174,6 +174,70 @@ void add_damage_from_win(session_t *ps, win *w) {
pixman_region32_fini(&extents);
}
/// Release the images attached to this window
void win_release_image(backend_t *base, win *w) {
assert(w->win_image || (w->flags & WIN_FLAGS_IMAGE_ERROR));
if (w->win_image) {
base->ops->release_image(base, w->win_image);
w->win_image = NULL;
}
if (w->shadow) {
assert(w->shadow_image || (w->flags & WIN_FLAGS_IMAGE_ERROR));
if (w->shadow_image) {
base->ops->release_image(base, w->shadow_image);
w->shadow_image = NULL;
}
}
}
static inline bool
_win_bind_image(session_t *ps, win *w, void **win_image, void **shadow_image) {
auto pixmap = xcb_generate_id(ps->c);
auto e = xcb_request_check(
ps->c, xcb_composite_name_window_pixmap_checked(ps->c, w->id, pixmap));
if (e) {
log_error("Failed to get named pixmap");
free(e);
return false;
}
*win_image = ps->backend_data->ops->bind_pixmap(
ps->backend_data, pixmap, x_get_visual_info(ps->c, w->a.visual), true);
if (!*win_image) {
return false;
}
if (w->shadow) {
*shadow_image = ps->backend_data->ops->render_shadow(
ps->backend_data, w->widthb, w->heightb, ps->gaussian_map, ps->o.shadow_red,
ps->o.shadow_green, ps->o.shadow_blue, ps->o.shadow_opacity);
if (!*shadow_image) {
log_error("Failed to bind shadow image");
ps->backend_data->ops->release_image(ps->backend_data, *win_image);
*win_image = NULL;
return false;
}
}
return true;
}
bool win_bind_image(session_t *ps, win *w) {
assert(!w->win_image && !w->shadow_image);
return _win_bind_image(ps, w, &w->win_image, &w->shadow_image);
}
bool win_try_rebind_image(session_t *ps, win *w) {
void *new_image, *new_shadow;
if (!_win_bind_image(ps, w, &new_image, &new_shadow)) {
return false;
}
log_trace("Freeing old window image");
win_release_image(ps->backend_data, w);
w->shadow_image = new_shadow;
w->win_image = new_image;
return true;
}
/**
* Check if a window has rounded corners.
* XXX This is really dumb
@ -634,27 +698,11 @@ void win_on_win_size_change(session_t *ps, win *w) {
w->shadow_dy = ps->o.shadow_offset_y;
w->shadow_width = w->widthb + ps->o.shadow_radius * 2;
w->shadow_height = w->heightb + ps->o.shadow_radius * 2;
w->flags |= WFLAG_SIZE_CHANGE;
// Invalidate the shadow we built
if (ps->o.experimental_backends && ps->redirected) {
if (w->state == WSTATE_MAPPED || w->state == WSTATE_MAPPING ||
w->state == WSTATE_FADING) {
ps->backend_data->ops->release_image(ps->backend_data, w->win_image);
if (w->shadow_image) {
ps->backend_data->ops->release_image(ps->backend_data,
w->shadow_image);
}
auto pixmap = xcb_generate_id(ps->c);
xcb_composite_name_window_pixmap(ps->c, w->id, pixmap);
w->win_image = ps->backend_data->ops->bind_pixmap(
ps->backend_data, pixmap,
x_get_visual_info(ps->c, w->a.visual), true);
if (w->shadow) {
w->shadow_image = ps->backend_data->ops->render_shadow(
ps->backend_data, w->widthb, w->heightb,
ps->gaussian_map, ps->o.shadow_red, ps->o.shadow_green,
ps->o.shadow_blue, ps->o.shadow_opacity);
}
w->flags |= WIN_FLAGS_STALE_IMAGE;
} else {
assert(w->state == WSTATE_UNMAPPED);
}
@ -1281,22 +1329,7 @@ gen_by_val(win_extents);
// Note we only do this when screen is redirected, because
// otherwise win_data is not valid
assert(w->state != WSTATE_UNMAPPING && w->state != WSTATE_DESTROYING);
ps->backend_data->ops->release_image(ps->backend_data, w->win_image);
if (w->shadow_image) {
ps->backend_data->ops->release_image(ps->backend_data,
w->shadow_image);
}
auto pixmap = xcb_generate_id(ps->c);
xcb_composite_name_window_pixmap(ps->c, w->id, pixmap);
w->win_image = ps->backend_data->ops->bind_pixmap(
ps->backend_data, pixmap,
x_get_visual_info(ps->c, w->a.visual), true);
if (w->shadow) {
w->shadow_image = ps->backend_data->ops->render_shadow(
ps->backend_data, w->widthb, w->heightb,
ps->gaussian_map, ps->o.shadow_red, ps->o.shadow_green,
ps->o.shadow_blue, ps->o.shadow_opacity);
}
w->flags |= WIN_FLAGS_STALE_IMAGE;
}
} else {
free_paint(ps, &w->paint);
@ -1392,14 +1425,7 @@ static void finish_unmap_win(session_t *ps, win **_w) {
if (ps->o.experimental_backends) {
// We are in unmap_win, we definitely was viewable
if (ps->redirected) {
assert(w->win_image);
ps->backend_data->ops->release_image(ps->backend_data, w->win_image);
if (w->shadow_image) {
ps->backend_data->ops->release_image(ps->backend_data,
w->shadow_image);
}
w->win_image = NULL;
w->shadow_image = NULL;
win_release_image(ps->backend_data, w);
}
} else {
free_paint(ps, &w->paint);
@ -1675,15 +1701,8 @@ void map_win(session_t *ps, win *w) {
// TODO win_update_bounding_shape below will immediately
// reinit w->win_data, not very efficient
if (ps->redirected && ps->o.experimental_backends) {
auto pixmap = xcb_generate_id(ps->c);
xcb_composite_name_window_pixmap(ps->c, w->id, pixmap);
w->win_image = ps->backend_data->ops->bind_pixmap(
ps->backend_data, pixmap, x_get_visual_info(ps->c, w->a.visual), true);
if (w->shadow) {
w->shadow_image = ps->backend_data->ops->render_shadow(
ps->backend_data, w->widthb, w->heightb, ps->gaussian_map,
ps->o.shadow_red, ps->o.shadow_green, ps->o.shadow_blue,
ps->o.shadow_opacity);
if (!win_bind_image(ps, w)) {
w->flags |= WIN_FLAGS_IMAGE_ERROR;
}
}
log_debug("Window %#010x has opacity %f, opacity target is %f", w->id, w->opacity,
@ -1740,5 +1759,3 @@ void map_win_by_id(session_t *ps, xcb_window_t id) {
map_win(ps, w);
}
// vim: set et sw=2 :

13
src/win.h
View File

@ -18,6 +18,7 @@
#include "render.h"
#include "types.h"
#include "utils.h"
#include "backend/backend.h"
#include "x.h"
typedef struct session session_t;
@ -104,6 +105,13 @@ typedef enum {
WSTATE_UNMAPPED,
} winstate_t;
typedef enum win_flags {
/// win_image/shadow_image is out of date
WIN_FLAGS_STALE_IMAGE = 1,
/// there was an error trying to bind the images
WIN_FLAGS_IMAGE_ERROR = 2,
} win_flags_t;
/**
* About coordinate systems
*
@ -282,6 +290,11 @@ struct win {
#endif
};
void win_release_image(backend_t *base, win *w);
bool must_use win_bind_image(session_t *ps, win *w);
/// Attempt a rebind of window's images. If that failed, the original images are kept.
bool win_try_rebind_image(session_t *ps, win *w);
int win_get_name(session_t *ps, win *w);
int win_get_role(session_t *ps, win *w);
winmode_t attr_pure win_calc_mode(const win *w);