swayfx/sway/desktop/render.c
Ryan Dwyer c006717910 Minor refactor of input manager
The input manager is a singleton object. Passing the sway_input_manager
argument to each of its functions is unnecessary, while removing the
argument makes it obvious to the caller that it's a singleton. This
patch removes the argument and makes the input manager use server.input
instead.

On a similar note:

* sway_input_manager.server is removed in favour of using the server
global.
* seat.input is removed because it can get it from server.input.

Due to a circular dependency, creating seat0 is now done directly in
server_init rather than in input_manager_create. This is because
creating seats must be done after server.input is set.

Lastly, it now stores the default seat name using a constant and removes
a second reference to seat0 (in input_manager_get_default_seat).
2018-10-20 13:11:43 +10:00

1028 lines
33 KiB
C

#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <stdlib.h>
#include <strings.h>
#include <time.h>
#include <wayland-server.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_buffer.h>
#include <wlr/types/wlr_matrix.h>
#include <wlr/types/wlr_output_damage.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_surface.h>
#include <wlr/util/region.h>
#include "log.h"
#include "config.h"
#include "sway/config.h"
#include "sway/debug.h"
#include "sway/input/input-manager.h"
#include "sway/input/seat.h"
#include "sway/layers.h"
#include "sway/output.h"
#include "sway/server.h"
#include "sway/tree/arrange.h"
#include "sway/tree/container.h"
#include "sway/tree/root.h"
#include "sway/tree/view.h"
#include "sway/tree/workspace.h"
struct render_data {
pixman_region32_t *damage;
float alpha;
};
/**
* Apply scale to a width or height.
*
* One does not simply multiply the width by the scale. We allow fractional
* scaling, which means the resulting scaled width might be a decimal.
* So we round it.
*
* But even this can produce undesirable results depending on the X or Y offset
* of the box. For example, with a scale of 1.5, a box with width=1 should not
* scale to 2px if its X coordinate is 1, because the X coordinate would have
* scaled to 2px.
*/
static int scale_length(int length, int offset, float scale) {
return round((offset + length) * scale) - round(offset * scale);
}
static void scale_box(struct wlr_box *box, float scale) {
box->width = scale_length(box->width, box->x, scale);
box->height = scale_length(box->height, box->y, scale);
box->x = round(box->x * scale);
box->y = round(box->y * scale);
}
static void scissor_output(struct wlr_output *wlr_output,
pixman_box32_t *rect) {
struct wlr_renderer *renderer = wlr_backend_get_renderer(wlr_output->backend);
assert(renderer);
struct wlr_box box = {
.x = rect->x1,
.y = rect->y1,
.width = rect->x2 - rect->x1,
.height = rect->y2 - rect->y1,
};
int ow, oh;
wlr_output_transformed_resolution(wlr_output, &ow, &oh);
enum wl_output_transform transform =
wlr_output_transform_invert(wlr_output->transform);
wlr_box_transform(&box, transform, ow, oh, &box);
wlr_renderer_scissor(renderer, &box);
}
static void render_texture(struct wlr_output *wlr_output,
pixman_region32_t *output_damage, struct wlr_texture *texture,
const struct wlr_box *box, const float matrix[static 9], float alpha) {
struct wlr_renderer *renderer =
wlr_backend_get_renderer(wlr_output->backend);
pixman_region32_t damage;
pixman_region32_init(&damage);
pixman_region32_union_rect(&damage, &damage, box->x, box->y,
box->width, box->height);
pixman_region32_intersect(&damage, &damage, output_damage);
bool damaged = pixman_region32_not_empty(&damage);
if (!damaged) {
goto damage_finish;
}
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(wlr_output, &rects[i]);
wlr_render_texture_with_matrix(renderer, texture, matrix, alpha);
}
damage_finish:
pixman_region32_fini(&damage);
}
static void render_surface_iterator(struct sway_output *output,
struct wlr_surface *surface, struct wlr_box *_box, float rotation,
void *_data) {
struct render_data *data = _data;
struct wlr_output *wlr_output = output->wlr_output;
pixman_region32_t *output_damage = data->damage;
float alpha = data->alpha;
struct wlr_texture *texture = wlr_surface_get_texture(surface);
if (!texture) {
return;
}
struct wlr_box box = *_box;
scale_box(&box, wlr_output->scale);
float matrix[9];
enum wl_output_transform transform =
wlr_output_transform_invert(surface->current.transform);
wlr_matrix_project_box(matrix, &box, transform, rotation,
wlr_output->transform_matrix);
render_texture(wlr_output, output_damage, texture, &box, matrix, alpha);
}
static void render_layer(struct sway_output *output,
pixman_region32_t *damage, struct wl_list *layer_surfaces) {
struct render_data data = {
.damage = damage,
.alpha = 1.0f,
};
output_layer_for_each_surface(output, layer_surfaces,
render_surface_iterator, &data);
}
#ifdef HAVE_XWAYLAND
static void render_unmanaged(struct sway_output *output,
pixman_region32_t *damage, struct wl_list *unmanaged) {
struct render_data data = {
.damage = damage,
.alpha = 1.0f,
};
output_unmanaged_for_each_surface(output, unmanaged,
render_surface_iterator, &data);
}
#endif
static void render_drag_icons(struct sway_output *output,
pixman_region32_t *damage, struct wl_list *drag_icons) {
struct render_data data = {
.damage = damage,
.alpha = 1.0f,
};
output_drag_icons_for_each_surface(output, drag_icons,
render_surface_iterator, &data);
}
// _box.x and .y are expected to be layout-local
// _box.width and .height are expected to be output-buffer-local
static void render_rect(struct wlr_output *wlr_output,
pixman_region32_t *output_damage, const struct wlr_box *_box,
float color[static 4]) {
struct wlr_renderer *renderer =
wlr_backend_get_renderer(wlr_output->backend);
struct wlr_box box;
memcpy(&box, _box, sizeof(struct wlr_box));
box.x -= wlr_output->lx * wlr_output->scale;
box.y -= wlr_output->ly * wlr_output->scale;
pixman_region32_t damage;
pixman_region32_init(&damage);
pixman_region32_union_rect(&damage, &damage, box.x, box.y,
box.width, box.height);
pixman_region32_intersect(&damage, &damage, output_damage);
bool damaged = pixman_region32_not_empty(&damage);
if (!damaged) {
goto damage_finish;
}
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(wlr_output, &rects[i]);
wlr_render_rect(renderer, &box, color,
wlr_output->transform_matrix);
}
damage_finish:
pixman_region32_fini(&damage);
}
static void premultiply_alpha(float color[4], float opacity) {
color[3] *= opacity;
color[0] *= color[3];
color[1] *= color[3];
color[2] *= color[3];
}
static void render_view_toplevels(struct sway_view *view,
struct sway_output *output, pixman_region32_t *damage, float alpha) {
struct render_data data = {
.damage = damage,
.alpha = alpha,
};
// Render all toplevels without descending into popups
double ox = view->container->current.view_x -
output->wlr_output->lx - view->geometry.x;
double oy = view->container->current.view_y -
output->wlr_output->ly - view->geometry.y;
output_surface_for_each_surface(output, view->surface, ox, oy,
render_surface_iterator, &data);
}
static void render_popup_iterator(struct sway_output *output,
struct wlr_surface *surface, struct wlr_box *box, float rotation,
void *data) {
// Render this popup's surface
render_surface_iterator(output, surface, box, rotation, data);
// Render this popup's child toplevels
output_surface_for_each_surface(output, surface, box->x, box->y,
render_surface_iterator, data);
}
static void render_view_popups(struct sway_view *view,
struct sway_output *output, pixman_region32_t *damage, float alpha) {
struct render_data data = {
.damage = damage,
.alpha = alpha,
};
output_view_for_each_popup(output, view, render_popup_iterator, &data);
}
static void render_saved_view(struct sway_view *view,
struct sway_output *output, pixman_region32_t *damage, float alpha) {
struct wlr_output *wlr_output = output->wlr_output;
if (!view->saved_buffer || !view->saved_buffer->texture) {
return;
}
struct wlr_box box = {
.x = view->container->current.view_x - output->wlr_output->lx -
view->saved_geometry.x,
.y = view->container->current.view_y - output->wlr_output->ly -
view->saved_geometry.y,
.width = view->saved_buffer_width,
.height = view->saved_buffer_height,
};
struct wlr_box output_box = {
.width = output->width,
.height = output->height,
};
struct wlr_box intersection;
bool intersects = wlr_box_intersection(&output_box, &box, &intersection);
if (!intersects) {
return;
}
scale_box(&box, wlr_output->scale);
float matrix[9];
wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
wlr_output->transform_matrix);
render_texture(wlr_output, damage, view->saved_buffer->texture,
&box, matrix, alpha);
}
/**
* Render a view's surface and left/bottom/right borders.
*/
static void render_view(struct sway_output *output, pixman_region32_t *damage,
struct sway_container *con, struct border_colors *colors) {
struct sway_view *view = con->view;
if (view->saved_buffer) {
render_saved_view(view, output, damage, view->container->alpha);
} else if (view->surface) {
render_view_toplevels(view, output, damage, view->container->alpha);
}
if (con->current.border == B_NONE || con->current.border == B_CSD) {
return;
}
struct wlr_box box;
float output_scale = output->wlr_output->scale;
float color[4];
struct sway_container_state *state = &con->current;
if (state->border_left) {
memcpy(&color, colors->child_border, sizeof(float) * 4);
premultiply_alpha(color, con->alpha);
box.x = state->con_x;
box.y = state->view_y;
box.width = state->border_thickness;
box.height = state->view_height;
scale_box(&box, output_scale);
render_rect(output->wlr_output, damage, &box, color);
}
list_t *siblings = container_get_current_siblings(con);
enum sway_container_layout layout =
container_current_parent_layout(con);
if (state->border_right) {
if (siblings->length == 1 && layout == L_HORIZ) {
memcpy(&color, colors->indicator, sizeof(float) * 4);
} else {
memcpy(&color, colors->child_border, sizeof(float) * 4);
}
premultiply_alpha(color, con->alpha);
box.x = state->view_x + state->view_width;
box.y = state->view_y;
box.width = state->border_thickness;
box.height = state->view_height;
scale_box(&box, output_scale);
render_rect(output->wlr_output, damage, &box, color);
}
if (state->border_bottom) {
if (siblings->length == 1 && layout == L_VERT) {
memcpy(&color, colors->indicator, sizeof(float) * 4);
} else {
memcpy(&color, colors->child_border, sizeof(float) * 4);
}
premultiply_alpha(color, con->alpha);
box.x = state->con_x;
box.y = state->view_y + state->view_height;
box.width = state->con_width;
box.height = state->border_thickness;
scale_box(&box, output_scale);
render_rect(output->wlr_output, damage, &box, color);
}
}
/**
* Render a titlebar.
*
* Care must be taken not to render over the same pixel multiple times,
* otherwise the colors will be incorrect when using opacity.
*
* The height is: 1px border, 3px padding, font height, 3px padding, 1px border
* The left side for L_TABBED is: 1px border, 2px padding, title
* The left side for other layouts is: 3px padding, title
*/
static void render_titlebar(struct sway_output *output,
pixman_region32_t *output_damage, struct sway_container *con,
int x, int y, int width,
struct border_colors *colors, struct wlr_texture *title_texture,
struct wlr_texture *marks_texture) {
struct wlr_box box;
float color[4];
struct sway_container_state *state = &con->current;
float output_scale = output->wlr_output->scale;
enum sway_container_layout layout = container_current_parent_layout(con);
list_t *children = container_get_current_siblings(con);
bool is_last_child = children->length == 0 ||
children->items[children->length - 1] == con;
double output_x = output->wlr_output->lx;
double output_y = output->wlr_output->ly;
// Single pixel bar above title
memcpy(&color, colors->border, sizeof(float) * 4);
premultiply_alpha(color, con->alpha);
box.x = x;
box.y = y;
box.width = width;
box.height = TITLEBAR_BORDER_THICKNESS;
scale_box(&box, output_scale);
render_rect(output->wlr_output, output_damage, &box, color);
// Single pixel bar below title
size_t left_offset = 0, right_offset = 0;
bool connects_sides = false;
if (layout == L_HORIZ || layout == L_VERT ||
(layout == L_STACKED && is_last_child)) {
if (con->view) {
left_offset = state->border_left * state->border_thickness;
right_offset = state->border_right * state->border_thickness;
connects_sides = true;
}
}
box.x = x + left_offset;
box.y = y + container_titlebar_height() - TITLEBAR_BORDER_THICKNESS;
box.width = width - left_offset - right_offset;
box.height = TITLEBAR_BORDER_THICKNESS;
scale_box(&box, output_scale);
render_rect(output->wlr_output, output_damage, &box, color);
if (layout == L_TABBED) {
// Single pixel left edge
box.x = x;
box.y = y + TITLEBAR_BORDER_THICKNESS;
box.width = TITLEBAR_BORDER_THICKNESS;
box.height =
container_titlebar_height() - TITLEBAR_BORDER_THICKNESS * 2;
scale_box(&box, output_scale);
render_rect(output->wlr_output, output_damage, &box, color);
// Single pixel right edge
box.x = x + width - TITLEBAR_BORDER_THICKNESS;
box.y = y + TITLEBAR_BORDER_THICKNESS;
box.width = TITLEBAR_BORDER_THICKNESS;
box.height =
container_titlebar_height() - TITLEBAR_BORDER_THICKNESS * 2;
scale_box(&box, output_scale);
render_rect(output->wlr_output, output_damage, &box, color);
}
size_t inner_width = width - TITLEBAR_H_PADDING * 2;
int bg_y = y + TITLEBAR_BORDER_THICKNESS;
int ob_bg_height = scale_length(
(TITLEBAR_V_PADDING - TITLEBAR_BORDER_THICKNESS) * 2 +
config->font_height, bg_y, output_scale);
// Marks
int marks_ob_width = 0; // output-buffer-local
if (config->show_marks && marks_texture) {
struct wlr_box texture_box;
wlr_texture_get_size(marks_texture,
&texture_box.width, &texture_box.height);
marks_ob_width = texture_box.width;
// The marks texture might be shorter than the config->font_height, in
// which case we need to pad it as evenly as possible above and below.
int ob_padding_total = ob_bg_height - texture_box.height;
int ob_padding_above = floor(ob_padding_total / 2.0);
int ob_padding_below = ceil(ob_padding_total / 2.0);
// Render texture
texture_box.x = round((x - output_x + width - TITLEBAR_H_PADDING)
* output_scale) - texture_box.width;
texture_box.y = round((bg_y - output_y) * output_scale) +
ob_padding_above;
float matrix[9];
wlr_matrix_project_box(matrix, &texture_box,
WL_OUTPUT_TRANSFORM_NORMAL,
0.0, output->wlr_output->transform_matrix);
if (inner_width * output_scale < texture_box.width) {
texture_box.width = inner_width * output_scale;
}
render_texture(output->wlr_output, output_damage, marks_texture,
&texture_box, matrix, con->alpha);
// Padding above
memcpy(&color, colors->background, sizeof(float) * 4);
premultiply_alpha(color, con->alpha);
box.x = texture_box.x + round(output_x * output_scale);
box.y = round((y + TITLEBAR_BORDER_THICKNESS) * output_scale);
box.width = texture_box.width;
box.height = ob_padding_above;
render_rect(output->wlr_output, output_damage, &box, color);
// Padding below
box.y += ob_padding_above + texture_box.height;
box.height = ob_padding_below;
render_rect(output->wlr_output, output_damage, &box, color);
}
// Title text
size_t title_ob_width = 0; // output-buffer-local
if (title_texture) {
struct wlr_box texture_box;
wlr_texture_get_size(title_texture,
&texture_box.width, &texture_box.height);
title_ob_width = texture_box.width;
// The title texture might be shorter than the config->font_height,
// in which case we need to pad it above and below.
int ob_padding_above = round((config->font_baseline -
con->title_baseline + TITLEBAR_V_PADDING -
TITLEBAR_BORDER_THICKNESS) * output_scale);
int ob_padding_below = ob_bg_height - ob_padding_above -
texture_box.height;
// Render texture
texture_box.x =
round((x - output_x + TITLEBAR_H_PADDING) * output_scale);
texture_box.y =
round((bg_y - output_y) * output_scale) + ob_padding_above;
float matrix[9];
wlr_matrix_project_box(matrix, &texture_box,
WL_OUTPUT_TRANSFORM_NORMAL,
0.0, output->wlr_output->transform_matrix);
int inner_x = x - output_x + TITLEBAR_H_PADDING;
int ob_inner_width = scale_length(inner_width, inner_x, output_scale);
if (ob_inner_width - marks_ob_width < texture_box.width) {
texture_box.width = ob_inner_width - marks_ob_width;
}
render_texture(output->wlr_output, output_damage, title_texture,
&texture_box, matrix, con->alpha);
// Padding above
memcpy(&color, colors->background, sizeof(float) * 4);
premultiply_alpha(color, con->alpha);
box.x = texture_box.x + round(output_x * output_scale);
box.y = round((y + TITLEBAR_BORDER_THICKNESS) * output_scale);
box.width = texture_box.width;
box.height = ob_padding_above;
render_rect(output->wlr_output, output_damage, &box, color);
// Padding below
box.y += ob_padding_above + texture_box.height;
box.height = ob_padding_below;
render_rect(output->wlr_output, output_damage, &box, color);
}
// Filler between title and marks
box.width =
round(inner_width * output_scale) - title_ob_width - marks_ob_width;
if (box.width > 0) {
box.x = round((x + TITLEBAR_H_PADDING) * output_scale) + title_ob_width;
box.y = round(bg_y * output_scale);
box.height = ob_bg_height;
render_rect(output->wlr_output, output_damage, &box, color);
}
// Padding left of title
left_offset = (layout == L_TABBED) * TITLEBAR_BORDER_THICKNESS;
box.x = x + left_offset;
box.y = y + TITLEBAR_BORDER_THICKNESS;
box.width = TITLEBAR_H_PADDING - left_offset;
box.height = (TITLEBAR_V_PADDING - TITLEBAR_BORDER_THICKNESS) * 2 +
config->font_height;
scale_box(&box, output_scale);
render_rect(output->wlr_output, output_damage, &box, color);
// Padding right of marks
right_offset = (layout == L_TABBED) * TITLEBAR_BORDER_THICKNESS;
box.x = x + width - TITLEBAR_H_PADDING;
box.y = y + TITLEBAR_BORDER_THICKNESS;
box.width = TITLEBAR_H_PADDING - right_offset;
box.height = (TITLEBAR_V_PADDING - TITLEBAR_BORDER_THICKNESS) * 2 +
config->font_height;
scale_box(&box, output_scale);
render_rect(output->wlr_output, output_damage, &box, color);
if (connects_sides) {
// Left pixel in line with bottom bar
box.x = x;
box.y = y + container_titlebar_height() - TITLEBAR_BORDER_THICKNESS;
box.width = state->border_thickness * state->border_left;
box.height = TITLEBAR_BORDER_THICKNESS;
scale_box(&box, output_scale);
render_rect(output->wlr_output, output_damage, &box, color);
// Right pixel in line with bottom bar
box.x = x + width - state->border_thickness * state->border_right;
box.y = y + container_titlebar_height() - TITLEBAR_BORDER_THICKNESS;
box.width = state->border_thickness * state->border_right;
box.height = TITLEBAR_BORDER_THICKNESS;
scale_box(&box, output_scale);
render_rect(output->wlr_output, output_damage, &box, color);
}
}
/**
* Render the top border line for a view using "border pixel".
*/
static void render_top_border(struct sway_output *output,
pixman_region32_t *output_damage, struct sway_container *con,
struct border_colors *colors) {
struct sway_container_state *state = &con->current;
if (!state->border_top) {
return;
}
struct wlr_box box;
float color[4];
float output_scale = output->wlr_output->scale;
// Child border - top edge
memcpy(&color, colors->child_border, sizeof(float) * 4);
premultiply_alpha(color, con->alpha);
box.x = state->con_x;
box.y = state->con_y;
box.width = state->con_width;
box.height = state->border_thickness;
scale_box(&box, output_scale);
render_rect(output->wlr_output, output_damage, &box, color);
}
struct parent_data {
enum sway_container_layout layout;
struct wlr_box box;
list_t *children;
bool focused;
struct sway_container *active_child;
};
static void render_container(struct sway_output *output,
pixman_region32_t *damage, struct sway_container *con, bool parent_focused);
/**
* Render a container's children using a L_HORIZ or L_VERT layout.
*
* Wrap child views in borders and leave child containers borderless because
* they'll apply their own borders to their children.
*/
static void render_containers_linear(struct sway_output *output,
pixman_region32_t *damage, struct parent_data *parent) {
for (int i = 0; i < parent->children->length; ++i) {
struct sway_container *child = parent->children->items[i];
if (child->view) {
struct sway_view *view = child->view;
struct border_colors *colors;
struct wlr_texture *title_texture;
struct wlr_texture *marks_texture;
struct sway_container_state *state = &child->current;
if (view_is_urgent(view)) {
colors = &config->border_colors.urgent;
title_texture = child->title_urgent;
marks_texture = view->marks_urgent;
} else if (state->focused || parent->focused) {
colors = &config->border_colors.focused;
title_texture = child->title_focused;
marks_texture = view->marks_focused;
} else if (child == parent->active_child) {
colors = &config->border_colors.focused_inactive;
title_texture = child->title_focused_inactive;
marks_texture = view->marks_focused_inactive;
} else {
colors = &config->border_colors.unfocused;
title_texture = child->title_unfocused;
marks_texture = view->marks_unfocused;
}
if (state->border == B_NORMAL) {
render_titlebar(output, damage, child, state->con_x,
state->con_y, state->con_width, colors,
title_texture, marks_texture);
} else if (state->border == B_PIXEL) {
render_top_border(output, damage, child, colors);
}
render_view(output, damage, child, colors);
} else {
render_container(output, damage, child,
parent->focused || child->current.focused);
}
}
}
/**
* Render a container's children using the L_TABBED layout.
*/
static void render_containers_tabbed(struct sway_output *output,
pixman_region32_t *damage, struct parent_data *parent) {
if (!parent->children->length) {
return;
}
struct sway_container *current = parent->active_child;
struct border_colors *current_colors = &config->border_colors.unfocused;
int tab_width = parent->box.width / parent->children->length;
// Render tabs
for (int i = 0; i < parent->children->length; ++i) {
struct sway_container *child = parent->children->items[i];
struct sway_view *view = child->view;
struct sway_container_state *cstate = &child->current;
struct border_colors *colors;
struct wlr_texture *title_texture;
struct wlr_texture *marks_texture;
bool urgent = view ?
view_is_urgent(view) : container_has_urgent_child(child);
if (urgent) {
colors = &config->border_colors.urgent;
title_texture = child->title_urgent;
marks_texture = view ? view->marks_urgent : NULL;
} else if (cstate->focused || parent->focused) {
colors = &config->border_colors.focused;
title_texture = child->title_focused;
marks_texture = view ? view->marks_focused : NULL;
} else if (child == parent->active_child) {
colors = &config->border_colors.focused_inactive;
title_texture = child->title_focused_inactive;
marks_texture = view ? view->marks_focused_inactive : NULL;
} else {
colors = &config->border_colors.unfocused;
title_texture = child->title_unfocused;
marks_texture = view ? view->marks_unfocused : NULL;
}
int x = cstate->con_x + tab_width * i;
// Make last tab use the remaining width of the parent
if (i == parent->children->length - 1) {
tab_width = parent->box.width - tab_width * i;
}
render_titlebar(output, damage, child, x, parent->box.y, tab_width,
colors, title_texture, marks_texture);
if (child == current) {
current_colors = colors;
}
}
// Render surface and left/right/bottom borders
if (current->view) {
render_view(output, damage, current, current_colors);
} else {
render_container(output, damage, current,
parent->focused || current->current.focused);
}
}
/**
* Render a container's children using the L_STACKED layout.
*/
static void render_containers_stacked(struct sway_output *output,
pixman_region32_t *damage, struct parent_data *parent) {
if (!parent->children->length) {
return;
}
struct sway_container *current = parent->active_child;
struct border_colors *current_colors = &config->border_colors.unfocused;
size_t titlebar_height = container_titlebar_height();
// Render titles
for (int i = 0; i < parent->children->length; ++i) {
struct sway_container *child = parent->children->items[i];
struct sway_view *view = child->view;
struct sway_container_state *cstate = &child->current;
struct border_colors *colors;
struct wlr_texture *title_texture;
struct wlr_texture *marks_texture;
bool urgent = view ?
view_is_urgent(view) : container_has_urgent_child(child);
if (urgent) {
colors = &config->border_colors.urgent;
title_texture = child->title_urgent;
marks_texture = view ? view->marks_urgent : NULL;
} else if (cstate->focused || parent->focused) {
colors = &config->border_colors.focused;
title_texture = child->title_focused;
marks_texture = view ? view->marks_focused : NULL;
} else if (child == parent->active_child) {
colors = &config->border_colors.focused_inactive;
title_texture = child->title_focused_inactive;
marks_texture = view ? view->marks_focused_inactive : NULL;
} else {
colors = &config->border_colors.unfocused;
title_texture = child->title_unfocused;
marks_texture = view ? view->marks_unfocused : NULL;
}
int y = parent->box.y + titlebar_height * i;
render_titlebar(output, damage, child, parent->box.x, y,
parent->box.width, colors, title_texture, marks_texture);
if (child == current) {
current_colors = colors;
}
}
// Render surface and left/right/bottom borders
if (current->view) {
render_view(output, damage, current, current_colors);
} else {
render_container(output, damage, current,
parent->focused || current->current.focused);
}
}
static void render_containers(struct sway_output *output,
pixman_region32_t *damage, struct parent_data *parent) {
switch (parent->layout) {
case L_NONE:
case L_HORIZ:
case L_VERT:
render_containers_linear(output, damage, parent);
break;
case L_STACKED:
render_containers_stacked(output, damage, parent);
break;
case L_TABBED:
render_containers_tabbed(output, damage, parent);
break;
}
}
static void render_container(struct sway_output *output,
pixman_region32_t *damage, struct sway_container *con, bool focused) {
struct parent_data data = {
.layout = con->current.layout,
.box = {
.x = con->current.con_x,
.y = con->current.con_y,
.width = con->current.con_width,
.height = con->current.con_height,
},
.children = con->current.children,
.focused = focused,
.active_child = con->current.focused_inactive_child,
};
render_containers(output, damage, &data);
}
static void render_workspace(struct sway_output *output,
pixman_region32_t *damage, struct sway_workspace *ws, bool focused) {
struct parent_data data = {
.layout = ws->current.layout,
.box = {
.x = ws->current.x,
.y = ws->current.y,
.width = ws->current.width,
.height = ws->current.height,
},
.children = ws->current.tiling,
.focused = focused,
.active_child = ws->current.focused_inactive_child,
};
render_containers(output, damage, &data);
}
static void render_floating_container(struct sway_output *soutput,
pixman_region32_t *damage, struct sway_container *con) {
if (con->view) {
struct sway_view *view = con->view;
struct border_colors *colors;
struct wlr_texture *title_texture;
struct wlr_texture *marks_texture;
if (view_is_urgent(view)) {
colors = &config->border_colors.urgent;
title_texture = con->title_urgent;
marks_texture = view->marks_urgent;
} else if (con->current.focused) {
colors = &config->border_colors.focused;
title_texture = con->title_focused;
marks_texture = view->marks_focused;
} else {
colors = &config->border_colors.unfocused;
title_texture = con->title_unfocused;
marks_texture = view->marks_unfocused;
}
if (con->current.border == B_NORMAL) {
render_titlebar(soutput, damage, con, con->current.con_x,
con->current.con_y, con->current.con_width, colors,
title_texture, marks_texture);
} else if (con->current.border == B_PIXEL) {
render_top_border(soutput, damage, con, colors);
}
render_view(soutput, damage, con, colors);
} else {
render_container(soutput, damage, con, con->current.focused);
}
}
static void render_floating(struct sway_output *soutput,
pixman_region32_t *damage) {
for (int i = 0; i < root->outputs->length; ++i) {
struct sway_output *output = root->outputs->items[i];
for (int j = 0; j < output->current.workspaces->length; ++j) {
struct sway_workspace *ws = output->current.workspaces->items[j];
if (!workspace_is_visible(ws)) {
continue;
}
for (int k = 0; k < ws->current.floating->length; ++k) {
struct sway_container *floater = ws->current.floating->items[k];
render_floating_container(soutput, damage, floater);
}
}
}
}
static void render_dropzones(struct sway_output *output,
pixman_region32_t *damage) {
struct sway_seat *seat;
wl_list_for_each(seat, &server.input->seats, link) {
if (seat->operation == OP_MOVE_TILING && seat->op_target_node
&& node_get_output(seat->op_target_node) == output) {
float color[4];
memcpy(&color, config->border_colors.focused.indicator,
sizeof(float) * 4);
premultiply_alpha(color, 0.5);
struct wlr_box box;
memcpy(&box, &seat->op_drop_box, sizeof(struct wlr_box));
scale_box(&box, output->wlr_output->scale);
render_rect(output->wlr_output, damage, &box, color);
}
}
}
void output_render(struct sway_output *output, struct timespec *when,
pixman_region32_t *damage) {
struct wlr_output *wlr_output = output->wlr_output;
struct wlr_renderer *renderer =
wlr_backend_get_renderer(wlr_output->backend);
if (!sway_assert(renderer != NULL,
"expected the output backend to have a renderer")) {
return;
}
struct sway_workspace *workspace = output->current.active_workspace;
if (workspace == NULL) {
return;
}
wlr_renderer_begin(renderer, wlr_output->width, wlr_output->height);
if (!pixman_region32_not_empty(damage)) {
// Output isn't damaged but needs buffer swap
goto renderer_end;
}
if (debug.damage == DAMAGE_HIGHLIGHT) {
wlr_renderer_clear(renderer, (float[]){1, 1, 0, 1});
} else if (debug.damage == DAMAGE_RERENDER) {
int width, height;
wlr_output_transformed_resolution(wlr_output, &width, &height);
pixman_region32_union_rect(damage, damage, 0, 0, width, height);
}
if (output_has_opaque_overlay_layer_surface(output)) {
goto render_overlay;
}
struct sway_container *fullscreen_con = workspace->current.fullscreen;
if (fullscreen_con) {
float clear_color[] = {0.0f, 0.0f, 0.0f, 1.0f};
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(wlr_output, &rects[i]);
wlr_renderer_clear(renderer, clear_color);
}
// TODO: handle views smaller than the output
if (fullscreen_con->view) {
if (fullscreen_con->view->saved_buffer) {
render_saved_view(fullscreen_con->view, output, damage, 1.0f);
} else {
render_view_toplevels(fullscreen_con->view,
output, damage, 1.0f);
}
} else {
render_container(output, damage, fullscreen_con,
fullscreen_con->current.focused);
}
for (int i = 0; i < workspace->current.floating->length; ++i) {
struct sway_container *floater =
workspace->current.floating->items[i];
if (container_is_transient_for(floater, fullscreen_con)) {
render_floating_container(output, damage, floater);
}
}
#ifdef HAVE_XWAYLAND
render_unmanaged(output, damage, &root->xwayland_unmanaged);
#endif
} else {
float clear_color[] = {0.25f, 0.25f, 0.25f, 1.0f};
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(wlr_output, &rects[i]);
wlr_renderer_clear(renderer, clear_color);
}
render_layer(output, damage,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND]);
render_layer(output, damage,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM]);
render_workspace(output, damage, workspace, workspace->current.focused);
render_floating(output, damage);
#ifdef HAVE_XWAYLAND
render_unmanaged(output, damage, &root->xwayland_unmanaged);
#endif
render_layer(output, damage,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP]);
}
render_dropzones(output, damage);
struct sway_seat *seat = input_manager_current_seat();
struct sway_container *focus = seat_get_focused_container(seat);
if (focus && focus->view) {
render_view_popups(focus->view, output, damage, focus->alpha);
}
render_overlay:
render_layer(output, damage,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY]);
render_drag_icons(output, damage, &root->drag_icons);
renderer_end:
if (debug.render_tree) {
wlr_renderer_scissor(renderer, NULL);
wlr_render_texture(renderer, root->debug_tree,
wlr_output->transform_matrix, 0, 40, 1);
}
if (debug.damage == DAMAGE_HIGHLIGHT) {
int width, height;
wlr_output_transformed_resolution(wlr_output, &width, &height);
pixman_region32_union_rect(damage, damage, 0, 0, width, height);
}
wlr_renderer_scissor(renderer, NULL);
wlr_renderer_end(renderer);
if (!wlr_output_damage_swap_buffers(output->damage, when, damage)) {
return;
}
output->last_frame = *when;
}