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swayfx/sway/desktop/render.c

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#include <stdio.h>
#include <assert.h>
#include <GLES2/gl2.h>
#include <stdlib.h>
#include <strings.h>
#include <time.h>
#include <wayland-server-core.h>
#include <wlr/render/gles2.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_buffer.h>
#include <wlr/types/wlr_compositor.h>
#include <wlr/types/wlr_damage_ring.h>
#include <wlr/types/wlr_matrix.h>
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/util/box.h>
#include <wlr/util/region.h>
#include "config.h"
#include "log.h"
#include "sway/config.h"
#include "sway/desktop/fx_renderer/fx_framebuffer.h"
#include "sway/desktop/fx_renderer/fx_renderer.h"
#include "sway/input/input-manager.h"
#include "sway/input/seat.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 decoration_data get_undecorated_decoration_data() {
return (struct decoration_data) {
.alpha = 1.0f,
.dim = 0.0f,
.dim_color = config->dim_inactive_colors.unfocused,
.corner_radius = 0,
.saturation = 1.0f,
.has_titlebar = false,
.blur = false,
.discard_transparent = false,
.shadow = false,
.on_focused_workspace = true,
};
}
// TODO: Remove this ugly abomination with a complete border rework...
enum corner_location get_rotated_corner(enum corner_location corner_location,
enum wl_output_transform transform) {
if (corner_location == ALL || corner_location == NONE) {
return corner_location;
}
switch (transform) {
case WL_OUTPUT_TRANSFORM_NORMAL:
return corner_location;
case WL_OUTPUT_TRANSFORM_90:
return (corner_location + 1) % 4;
case WL_OUTPUT_TRANSFORM_180:
return (corner_location + 2) % 4;
case WL_OUTPUT_TRANSFORM_270:
return (corner_location + 3) % 4;
case WL_OUTPUT_TRANSFORM_FLIPPED:
return (corner_location + (1 - 2 * (corner_location % 2))) % 4;
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
return (corner_location + (4 - 2 * (corner_location % 2))) % 4;
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
return (corner_location + (3 - 2 * (corner_location % 2))) % 4;
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
return (corner_location + (2 - 2 * (corner_location % 2))) % 4;
}
return corner_location;
}
static struct wlr_box get_monitor_box(struct wlr_output *output) {
int width, height;
wlr_output_transformed_resolution(output, &width, &height);
struct wlr_box monitor_box = { 0, 0, width, height };
return monitor_box;
}
// Adjust the box position when switching the workspace
static void adjust_box_to_workspace_offset(struct wlr_box *box,
struct decoration_data *deco_data, struct sway_output *output) {
float scroll_percent = output->workspace_scroll.percent;
int ws_dimen;
int *box_coord;
switch (output->workspace_scroll.direction) {
case SWIPE_GESTURE_DIRECTION_NONE:
return;
case SWIPE_GESTURE_DIRECTION_HORIZONTAL:
ws_dimen = output->width;
box_coord = &box->x;
break;
case SWIPE_GESTURE_DIRECTION_VERTICAL:
ws_dimen = output->height;
box_coord = &box->y;
break;
}
*box_coord -= ws_dimen * scroll_percent;
if (!deco_data->on_focused_workspace) {
if (scroll_percent > 0) {
*box_coord += ws_dimen;
} else if (scroll_percent < 0) {
*box_coord -= ws_dimen;
}
}
}
// Clips the rendered damage to the workspace region.
// Fixes containers being rendered across workspaces while switching.
static void adjust_damage_to_workspace_bounds(pixman_region32_t *damage,
struct decoration_data *deco_data, struct sway_output *output) {
float scale = output->wlr_output->scale;
float scroll_percent = output->workspace_scroll.percent;
int x = 0, y = 0;
int ws_dimen;
int *coord;
switch (output->workspace_scroll.direction) {
case SWIPE_GESTURE_DIRECTION_NONE:
return;
case SWIPE_GESTURE_DIRECTION_HORIZONTAL:
ws_dimen = output->width;
coord = &x;
break;
case SWIPE_GESTURE_DIRECTION_VERTICAL:
ws_dimen = output->height;
coord = &y;
break;
}
*coord = round(-ws_dimen * scroll_percent);
if (!deco_data->on_focused_workspace) {
if (scroll_percent > 0) {
*coord += ws_dimen;
} else if (scroll_percent < 0) {
*coord -= ws_dimen;
}
}
struct wlr_box monitor_box = get_monitor_box(output->wlr_output);
pixman_region32_intersect_rect(damage, damage,
monitor_box.x, monitor_box.y,
monitor_box.width, monitor_box.height);
pixman_region32_translate(damage, x * scale, y * scale);
}
/**
* 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 scissor_output(struct wlr_output *wlr_output,
pixman_box32_t *rect) {
struct sway_output *output = wlr_output->data;
struct fx_renderer *renderer = output->renderer;
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, &box, transform, ow, oh);
fx_renderer_scissor(&box);
}
static void set_scale_filter(struct wlr_output *wlr_output,
struct fx_texture *texture, enum scale_filter_mode scale_filter) {
glBindTexture(texture->target, texture->id);
switch (scale_filter) {
case SCALE_FILTER_LINEAR:
glTexParameteri(texture->target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
break;
case SCALE_FILTER_NEAREST:
glTexParameteri(texture->target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
break;
case SCALE_FILTER_DEFAULT:
case SCALE_FILTER_SMART:
assert(false); // unreachable
}
}
pixman_region32_t create_damage(const struct wlr_box damage_box, pixman_region32_t *output_damage) {
pixman_region32_t damage;
pixman_region32_init(&damage);
pixman_region32_union_rect(&damage, &damage, damage_box.x, damage_box.y,
damage_box.width, damage_box.height);
pixman_region32_intersect(&damage, &damage, output_damage);
return damage;
}
static void render_texture(struct wlr_output *wlr_output,
pixman_region32_t *output_damage, struct fx_texture *texture,
const struct wlr_fbox *src_box, const struct wlr_box *dst_box,
const float matrix[static 9], struct decoration_data deco_data) {
struct sway_output *output = wlr_output->data;
struct fx_renderer *renderer = output->renderer;
pixman_region32_t damage = create_damage(*dst_box, output_damage);
bool damaged = pixman_region32_not_empty(&damage);
if (!damaged) {
goto damage_finish;
}
// ensure the box is updated as per the output orientation
struct wlr_box transformed_box;
int width, height;
wlr_output_transformed_resolution(wlr_output, &width, &height);
wlr_box_transform(&transformed_box, dst_box,
wlr_output_transform_invert(wlr_output->transform), width, height);
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(wlr_output, &rects[i]);
set_scale_filter(wlr_output, texture, output->scale_filter);
if (src_box != NULL) {
fx_render_subtexture_with_matrix(renderer, texture, src_box, &transformed_box,
matrix, deco_data);
} else {
fx_render_texture_with_matrix(renderer, texture, &transformed_box, matrix, deco_data);
}
}
damage_finish:
pixman_region32_fini(&damage);
}
/* Renders the blur for each damaged rect and swaps the buffer */
void render_blur_segments(struct fx_renderer *renderer,
const float matrix[static 9], pixman_region32_t* damage,
struct fx_framebuffer **buffer, struct blur_shader* shader,
const struct wlr_box *box, int blur_radius) {
if (*buffer == &renderer->effects_buffer) {
fx_framebuffer_bind(&renderer->effects_buffer_swapped);
} else {
fx_framebuffer_bind(&renderer->effects_buffer);
}
if (pixman_region32_not_empty(damage)) {
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(damage, &nrects);
for (int i = 0; i < nrects; ++i) {
const pixman_box32_t box = rects[i];
struct wlr_box new_box = { box.x1, box.y1, box.x2 - box.x1, box.y2 - box.y1 };
fx_renderer_scissor(&new_box);
fx_render_blur(renderer, matrix, buffer, shader, &new_box, blur_radius);
}
}
if (*buffer != &renderer->effects_buffer) {
*buffer = &renderer->effects_buffer;
} else {
*buffer = &renderer->effects_buffer_swapped;
}
}
// Blurs the main_buffer content and returns the blurred framebuffer
struct fx_framebuffer *get_main_buffer_blur(struct fx_renderer *renderer, struct sway_output *output,
pixman_region32_t *original_damage, const struct wlr_box *box) {
struct wlr_output *wlr_output = output->wlr_output;
struct wlr_box monitor_box = get_monitor_box(wlr_output);
const enum wl_output_transform transform = wlr_output_transform_invert(wlr_output->transform);
float matrix[9];
wlr_matrix_project_box(matrix, &monitor_box, transform, 0, wlr_output->transform_matrix);
float gl_matrix[9];
wlr_matrix_multiply(gl_matrix, renderer->projection, matrix);
pixman_region32_t damage;
pixman_region32_init(&damage);
pixman_region32_copy(&damage, original_damage);
wlr_region_transform(&damage, &damage, transform, monitor_box.width, monitor_box.height);
wlr_region_expand(&damage, &damage, config_get_blur_size());
// Initially blur main_buffer content into the effects_buffers
struct fx_framebuffer *current_buffer = &renderer->wlr_buffer;
// Bind to blur framebuffer
fx_framebuffer_bind(&renderer->effects_buffer);
glBindTexture(renderer->wlr_buffer.texture.target, renderer->wlr_buffer.texture.id);
// damage region will be scaled, make a temp
pixman_region32_t tempDamage;
pixman_region32_init(&tempDamage);
int blur_radius = config->blur_params.radius;
int blur_passes = config->blur_params.num_passes;
// Downscale
for (int i = 0; i < blur_passes; ++i) {
wlr_region_scale(&tempDamage, &damage, 1.0f / (1 << (i + 1)));
render_blur_segments(renderer, gl_matrix, &tempDamage, &current_buffer,
&renderer->shaders.blur1, box, blur_radius);
}
// Upscale
for (int i = blur_passes - 1; i >= 0; --i) {
// when upsampling we make the region twice as big
wlr_region_scale(&tempDamage, &damage, 1.0f / (1 << i));
render_blur_segments(renderer, gl_matrix, &tempDamage, &current_buffer,
&renderer->shaders.blur2, box, blur_radius);
}
float blur_noise = config->blur_params.noise;
float blur_brightness = config->blur_params.brightness;
float blur_contrast = config->blur_params.contrast;
float blur_saturation = config->blur_params.saturation;
// Render additional blur effects like saturation, noise, contrast, etc...
if (config_should_parameters_blur_effects() && pixman_region32_not_empty(&damage)) {
if (current_buffer == &renderer->effects_buffer) {
fx_framebuffer_bind(&renderer->effects_buffer_swapped);
} else {
fx_framebuffer_bind(&renderer->effects_buffer);
}
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);
for (int i = 0; i < nrects; ++i) {
const pixman_box32_t box = rects[i];
struct wlr_box new_box = { box.x1, box.y1, box.x2 - box.x1, box.y2 - box.y1 };
fx_renderer_scissor(&new_box);
fx_render_blur_effects(renderer, gl_matrix, &current_buffer, blur_noise,
blur_brightness, blur_contrast, blur_saturation);
}
if (current_buffer != &renderer->effects_buffer) {
current_buffer = &renderer->effects_buffer;
} else {
current_buffer = &renderer->effects_buffer_swapped;
}
}
pixman_region32_fini(&tempDamage);
pixman_region32_fini(&damage);
// Bind back to the default buffer
fx_framebuffer_bind(&renderer->wlr_buffer);
return current_buffer;
}
struct blur_stencil_data {
struct fx_texture *stencil_texture;
const struct wlr_fbox *stencil_src_box;
float *stencil_matrix;
};
void render_blur(bool optimized, struct sway_output *output,
pixman_region32_t *output_damage, const struct wlr_box *dst_box,
pixman_region32_t *opaque_region, struct decoration_data *deco_data,
struct blur_stencil_data *stencil_data) {
struct wlr_output *wlr_output = output->wlr_output;
struct fx_renderer *renderer = output->renderer;
// Check if damage is inside of box rect
pixman_region32_t damage = create_damage(*dst_box, output_damage);
pixman_region32_t translucent_region;
pixman_region32_init(&translucent_region);
if (!pixman_region32_not_empty(&damage)) {
goto damage_finish;
}
// Gets the translucent region
pixman_box32_t surface_box = { 0, 0, dst_box->width, dst_box->height };
pixman_region32_copy(&translucent_region, opaque_region);
pixman_region32_inverse(&translucent_region, &translucent_region, &surface_box);
if (!pixman_region32_not_empty(&translucent_region)) {
goto damage_finish;
}
struct fx_framebuffer *buffer = &renderer->blur_buffer;
if (!buffer->texture.id || !optimized) {
pixman_region32_translate(&translucent_region, dst_box->x, dst_box->y);
pixman_region32_intersect(&translucent_region, &translucent_region, &damage);
// Render the blur into its own buffer
buffer = get_main_buffer_blur(renderer, output, &translucent_region, dst_box);
}
// Get a stencil of the window ignoring transparent regions
if (deco_data->discard_transparent) {
fx_renderer_scissor(NULL);
fx_renderer_stencil_mask_init();
render_texture(wlr_output, output_damage, stencil_data->stencil_texture, stencil_data->stencil_src_box,
dst_box, stencil_data->stencil_matrix, *deco_data);
fx_renderer_stencil_mask_close(true);
}
// Draw the blurred texture
struct wlr_box monitor_box = get_monitor_box(wlr_output);
enum wl_output_transform transform = wlr_output_transform_invert(wlr_output->transform);
float matrix[9];
wlr_matrix_project_box(matrix, &monitor_box, transform, 0.0, wlr_output->transform_matrix);
struct decoration_data blur_deco_data = get_undecorated_decoration_data();
blur_deco_data.corner_radius = deco_data->corner_radius;
blur_deco_data.has_titlebar = deco_data->has_titlebar;
render_texture(wlr_output, &damage, &buffer->texture, NULL, dst_box, matrix, blur_deco_data);
// Finish stenciling
if (deco_data->discard_transparent) {
fx_renderer_stencil_mask_fini();
}
damage_finish:
pixman_region32_fini(&damage);
pixman_region32_fini(&translucent_region);
}
// _box.x and .y are expected to be layout-local
// _box.width and .height are expected to be output-buffer-local
void render_box_shadow(struct sway_output *output, pixman_region32_t *output_damage,
const struct wlr_box *_box, const float color[static 4], float blur_sigma,
float corner_radius, float offset_x, float offset_y) {
struct wlr_output *wlr_output = output->wlr_output;
struct fx_renderer *renderer = output->renderer;
struct wlr_box box;
memcpy(&box, _box, sizeof(struct wlr_box));
box.x -= blur_sigma - offset_x;
box.y -= blur_sigma - offset_y;
box.width += 2 * blur_sigma;
box.height += 2 * blur_sigma;
pixman_region32_t damage = create_damage(box, output_damage);
// don't damage area behind window since we dont render it anyway
struct wlr_box inner_box;
memcpy(&inner_box, _box, sizeof(struct wlr_box));
inner_box.x += corner_radius;
inner_box.y += corner_radius;
inner_box.width -= 2 * corner_radius;
inner_box.height -= 2 * corner_radius;
pixman_region32_t inner_damage = create_damage(inner_box, output_damage);
pixman_region32_subtract(&damage, &damage, &inner_damage);
pixman_region32_fini(&inner_damage);
bool damaged = pixman_region32_not_empty(&damage);
if (!damaged) {
goto damage_finish;
}
float matrix[9];
wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
wlr_output->transform_matrix);
int width, height;
wlr_output_transformed_resolution(wlr_output, &width, &height);
enum wl_output_transform transform = wlr_output_transform_invert(wlr_output->transform);
// ensure the shadow_box is updated as per the output orientation
struct wlr_box transformed_shadow_box;
wlr_box_transform(&transformed_shadow_box, &box, transform, width, height);
// ensure the box is updated as per the output orientation
struct wlr_box transformed_box;
wlr_box_transform(&transformed_box, _box, transform, width, height);
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(wlr_output, &rects[i]);
fx_render_box_shadow(renderer, &transformed_shadow_box, &transformed_box,
color, matrix, corner_radius, blur_sigma);
}
damage_finish:
pixman_region32_fini(&damage);
}
static void render_surface_iterator(struct sway_output *output,
struct sway_view *view, struct wlr_surface *surface,
struct wlr_box *_box, void *_data) {
struct render_data *data = _data;
struct wlr_output *wlr_output = output->wlr_output;
pixman_region32_t *output_damage = data->damage;
struct wlr_texture *texture = wlr_surface_get_texture(surface);
if (!texture) {
return;
}
struct wlr_box proj_box = *_box;
if (view) {
adjust_box_to_workspace_offset(&proj_box, &data->deco_data, output);
}
scale_box(&proj_box, wlr_output->scale);
float matrix[9];
enum wl_output_transform transform = wlr_output_transform_invert(surface->current.transform);
wlr_matrix_project_box(matrix, &proj_box, transform, 0.0, wlr_output->transform_matrix);
struct wlr_box dst_box = *_box;
struct wlr_box *clip_box = data->clip_box;
if (clip_box != NULL) {
dst_box.width = fmin(dst_box.width, clip_box->width);
dst_box.height = fmin(dst_box.height, clip_box->height);
dst_box.x = fmax(dst_box.x, clip_box->x);
dst_box.y = fmax(dst_box.y, clip_box->y);
}
if (view) {
adjust_box_to_workspace_offset(&dst_box, &data->deco_data, output);
}
scale_box(&dst_box, wlr_output->scale);
struct decoration_data deco_data = data->deco_data;
deco_data.corner_radius *= wlr_output->scale;
struct wlr_fbox src_box;
wlr_surface_get_buffer_source_box(surface, &src_box);
struct fx_texture fx_texture = fx_texture_from_wlr_texture(texture);
// render blur
bool is_subsurface = view ? view->surface != surface : false;
if (deco_data.blur && config_should_parameters_blur() && !is_subsurface) {
pixman_region32_t opaque_region;
pixman_region32_init(&opaque_region);
bool has_alpha = false;
if (deco_data.alpha < 1.0 || deco_data.dim_color[3] < 1.0) {
has_alpha = true;
pixman_region32_union_rect(&opaque_region, &opaque_region, 0, 0, 0, 0);
} else {
has_alpha = !surface->opaque;
pixman_region32_copy(&opaque_region, &surface->opaque_region);
}
if (has_alpha) {
struct wlr_box monitor_box = get_monitor_box(wlr_output);
wlr_box_transform(&monitor_box, &monitor_box,
wlr_output_transform_invert(wlr_output->transform), monitor_box.width, monitor_box.height);
struct blur_stencil_data stencil_data = { &fx_texture, &src_box, matrix };
bool should_optimize_blur = view ? !container_is_floating_or_child(view->container) || config->blur_xray : false;
render_blur(should_optimize_blur, output, output_damage, &dst_box,
&opaque_region, &deco_data, &stencil_data);
}
pixman_region32_fini(&opaque_region);
}
deco_data.discard_transparent = false;
// Render surface texture
render_texture(wlr_output, output_damage, &fx_texture, &src_box, &dst_box,
matrix, deco_data);
wlr_presentation_surface_sampled_on_output(server.presentation, surface,
wlr_output);
}
// view will be NULL every time
static void render_layer_iterator(struct sway_output *output,
struct sway_view *view, struct wlr_surface *surface,
struct wlr_box *_box, void *_data) {
struct render_data *data = _data;
struct decoration_data deco_data = data->deco_data;
// Ignore effects if this is a subsurface
if (!wlr_surface_is_layer_surface(surface)) {
deco_data = get_undecorated_decoration_data();
}
// render the layer's surface
render_surface_iterator(output, view, surface, _box, _data);
// render shadow
if (deco_data.shadow && config_should_parameters_shadow()) {
int corner_radius = deco_data.corner_radius *= output->wlr_output->scale;
int offset_x = config->shadow_offset_x * output->wlr_output->scale;
int offset_y = config->shadow_offset_y * output->wlr_output->scale;
scale_box(_box, output->wlr_output->scale);
render_box_shadow(output, data->damage, _box, config->shadow_color,
config->shadow_blur_sigma, corner_radius, offset_x, offset_y);
}
}
static void render_layer_toplevel(struct sway_output *output,
pixman_region32_t *damage, struct wl_list *layer_surfaces) {
struct render_data data = {
.damage = damage,
.deco_data = get_undecorated_decoration_data(),
};
output_layer_for_each_toplevel_surface(output, layer_surfaces,
render_layer_iterator, &data);
}
static void render_layer_popups(struct sway_output *output,
pixman_region32_t *damage, struct wl_list *layer_surfaces) {
struct render_data data = {
.damage = damage,
.deco_data = get_undecorated_decoration_data(),
};
output_layer_for_each_popup_surface(output, layer_surfaces,
render_layer_iterator, &data);
}
#if HAVE_XWAYLAND
static void render_unmanaged(struct sway_output *output,
pixman_region32_t *damage, struct wl_list *unmanaged) {
struct render_data data = {
.damage = damage,
.deco_data = get_undecorated_decoration_data(),
};
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,
.deco_data = get_undecorated_decoration_data(),
};
output_drag_icons_for_each_surface(output, drag_icons,
render_surface_iterator, &data);
}
void render_whole_output(struct fx_renderer *renderer, struct wlr_output *wlr_output,
pixman_region32_t *output_damage, struct fx_texture *texture) {
struct wlr_box monitor_box = get_monitor_box(wlr_output);
enum wl_output_transform transform = wlr_output_transform_invert(wlr_output->transform);
float matrix[9];
wlr_matrix_project_box(matrix, &monitor_box, transform, 0.0, wlr_output->transform_matrix);
render_texture(wlr_output, output_damage, texture, NULL, &monitor_box, matrix, get_undecorated_decoration_data());
}
void render_output_blur(struct sway_output *output, pixman_region32_t *damage) {
struct wlr_output *wlr_output = output->wlr_output;
struct fx_renderer *renderer = output->renderer;
struct wlr_box monitor_box = get_monitor_box(wlr_output);
pixman_region32_t fake_damage;
pixman_region32_init_rect(&fake_damage, 0, 0, monitor_box.width, monitor_box.height);
// Render the blur
struct fx_framebuffer *buffer = get_main_buffer_blur(renderer, output, &fake_damage, &monitor_box);
// Render the newly blurred content into the blur_buffer
fx_framebuffer_update(&renderer->blur_buffer,
output->renderer->viewport_width, output->renderer->viewport_height);
fx_framebuffer_bind(&renderer->blur_buffer);
// Clear the damaged region of the blur_buffer
float clear_color[] = { 0, 0, 0, 0 };
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(wlr_output, &rects[i]);
fx_renderer_clear(clear_color);
}
render_whole_output(renderer, wlr_output, &fake_damage, &buffer->texture);
fx_framebuffer_bind(&renderer->wlr_buffer);
pixman_region32_fini(&fake_damage);
renderer->blur_buffer_dirty = false;
}
// _box.x and .y are expected to be layout-local
// _box.width and .height are expected to be output-buffer-local
void render_rect(struct sway_output *output,
pixman_region32_t *output_damage, const struct wlr_box *_box,
float color[static 4]) {
struct wlr_output *wlr_output = output->wlr_output;
struct fx_renderer *renderer = output->renderer;
struct wlr_box box;
memcpy(&box, _box, sizeof(struct wlr_box));
box.x -= output->lx * wlr_output->scale;
box.y -= output->ly * wlr_output->scale;
pixman_region32_t damage = create_damage(box, 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]);
fx_render_rect(renderer, &box, color, wlr_output->transform_matrix);
}
damage_finish:
pixman_region32_fini(&damage);
}
void render_rounded_rect(struct sway_output *output, pixman_region32_t *output_damage,
const struct wlr_box *_box, float color[static 4], int corner_radius,
enum corner_location corner_location) {
struct wlr_output *wlr_output = output->wlr_output;
struct fx_renderer *renderer = output->renderer;
struct wlr_box box;
memcpy(&box, _box, sizeof(struct wlr_box));
box.x -= output->lx * wlr_output->scale;
box.y -= output->ly * wlr_output->scale;
pixman_region32_t damage = create_damage(box, output_damage);
bool damaged = pixman_region32_not_empty(&damage);
if (!damaged) {
goto damage_finish;
}
float matrix[9];
wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
wlr_output->transform_matrix);
enum wl_output_transform transform = wlr_output_transform_invert(wlr_output->transform);
// ensure the box is updated as per the output orientation
struct wlr_box transformed_box;
int width, height;
wlr_output_transformed_resolution(wlr_output, &width, &height);
wlr_box_transform(&transformed_box, &box, transform, width, height);
corner_location = get_rotated_corner(corner_location, transform);
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(wlr_output, &rects[i]);
fx_render_rounded_rect(renderer, &transformed_box, color, matrix,
corner_radius, corner_location);
}
damage_finish:
pixman_region32_fini(&damage);
}
// _box.x and .y are expected to be layout-local
// _box.width and .height are expected to be output-buffer-local
void render_border_corner(struct sway_output *output, pixman_region32_t *output_damage,
const struct wlr_box *_box, const float color[static 4], int corner_radius,
int border_thickness, enum corner_location corner_location) {
struct wlr_output *wlr_output = output->wlr_output;
struct fx_renderer *renderer = output->renderer;
struct wlr_box box;
memcpy(&box, _box, sizeof(struct wlr_box));
box.x -= output->lx * wlr_output->scale;
box.y -= output->ly * wlr_output->scale;
pixman_region32_t damage = create_damage(box, output_damage);
bool damaged = pixman_region32_not_empty(&damage);
if (!damaged) {
goto damage_finish;
}
float matrix[9];
wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
wlr_output->transform_matrix);
enum wl_output_transform transform = wlr_output_transform_invert(wlr_output->transform);
// ensure the box is updated as per the output orientation
struct wlr_box transformed_box;
int width, height;
wlr_output_transformed_resolution(wlr_output, &width, &height);
wlr_box_transform(&transformed_box, &box, transform, width, height);
corner_location = get_rotated_corner(corner_location, transform);
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(wlr_output, &rects[i]);
fx_render_border_corner(renderer, &transformed_box, color, matrix,
corner_location, corner_radius, border_thickness);
}
damage_finish:
pixman_region32_fini(&damage);
}
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, struct decoration_data deco_data) {
struct render_data data = {
.damage = damage,
.deco_data = deco_data,
};
// Clip the window to its view size, ignoring CSD
struct wlr_box clip_box;
struct sway_container_state state = view->container->current;
clip_box.x = state.x - output->lx;
clip_box.y = state.y - output->ly;
clip_box.width = state.width;
clip_box.height = state.height;
bool smart = config->hide_edge_borders_smart == ESMART_ON ||
(config->hide_edge_borders_smart == ESMART_NO_GAPS &&
!gaps_to_edge(view));
if (state.fullscreen_mode == FULLSCREEN_NONE
&& (state.border == B_PIXEL || state.border == B_NORMAL)
&& !smart) {
clip_box.x += state.border_thickness;
clip_box.width -= state.border_thickness * 2;
if (deco_data.has_titlebar) {
// Shift the box downward to compensate for the titlebar
int titlebar_thickness = container_titlebar_height();
clip_box.y += titlebar_thickness;
clip_box.height -= state.border_thickness + titlebar_thickness;
} else {
// Regular border
clip_box.y += state.border_thickness;
clip_box.height -= state.border_thickness * 2;
}
}
data.clip_box = &clip_box;
output_view_for_each_surface(output, view, render_surface_iterator, &data);
}
static void render_view_popups(struct sway_view *view, struct sway_output *output,
pixman_region32_t *damage, struct decoration_data deco_data) {
struct render_data data = {
.damage = damage,
.deco_data = deco_data,
};
output_view_for_each_popup_surface(output, view,
render_surface_iterator, &data);
}
static void render_saved_view(struct sway_view *view, struct sway_output *output,
pixman_region32_t *damage, struct decoration_data deco_data) {
struct wlr_output *wlr_output = output->wlr_output;
if (wl_list_empty(&view->saved_buffers)) {
return;
}
struct sway_saved_buffer *saved_buf;
wl_list_for_each(saved_buf, &view->saved_buffers, link) {
if (!saved_buf->buffer->texture) {
continue;
}
struct wlr_box proj_box = {
.x = saved_buf->x - view->saved_geometry.x - output->lx,
.y = saved_buf->y - view->saved_geometry.y - output->ly,
.width = saved_buf->width,
.height = saved_buf->height,
};
struct wlr_box output_box = {
.width = output->width,
.height = output->height,
};
struct wlr_box intersection;
bool intersects = wlr_box_intersection(&intersection, &output_box, &proj_box);
if (!intersects) {
continue;
}
struct wlr_box dst_box = proj_box;
scale_box(&proj_box, wlr_output->scale);
float matrix[9];
enum wl_output_transform transform = wlr_output_transform_invert(saved_buf->transform);
wlr_matrix_project_box(matrix, &proj_box, transform, 0, wlr_output->transform_matrix);
struct sway_container_state state = view->container->current;
dst_box.x = state.x - output->lx;
dst_box.y = state.y - output->ly;
dst_box.width = state.width;
dst_box.height = state.height;
if (state.border == B_PIXEL || state.border == B_NORMAL) {
dst_box.x += state.border_thickness;
dst_box.width -= state.border_thickness * 2;
if (deco_data.has_titlebar) {
// Shift the box downward to compensate for the titlebar
int titlebar_thickness = container_titlebar_height();
dst_box.y += titlebar_thickness;
dst_box.height -= state.border_thickness + titlebar_thickness;
} else {
// Regular border
dst_box.y += state.border_thickness;
dst_box.height -= state.border_thickness * 2;
}
}
scale_box(&dst_box, wlr_output->scale);
deco_data.corner_radius *= wlr_output->scale;
struct fx_texture fx_texture = fx_texture_from_wlr_texture(saved_buf->buffer->texture);
// render blur
if (deco_data.blur && config_should_parameters_blur()) {
struct wlr_gles2_texture_attribs attribs;
wlr_gles2_texture_get_attribs(saved_buf->buffer->texture, &attribs);
if (deco_data.alpha < 1.0 || attribs.has_alpha) {
pixman_region32_t opaque_region;
pixman_region32_init(&opaque_region);
pixman_region32_union_rect(&opaque_region, &opaque_region, 0, 0, 0, 0);
struct wlr_box monitor_box = get_monitor_box(wlr_output);
wlr_box_transform(&monitor_box, &monitor_box,
wlr_output_transform_invert(wlr_output->transform), monitor_box.width, monitor_box.height);
struct blur_stencil_data stencil_data = { &fx_texture, &saved_buf->source_box, matrix };
bool should_optimize_blur = !container_is_floating_or_child(view->container) || config->blur_xray;
render_blur(should_optimize_blur, output, damage, &dst_box, &opaque_region,
&deco_data, &stencil_data);
pixman_region32_fini(&opaque_region);
}
}
deco_data.discard_transparent = false;
// Render saved surface texture
render_texture(wlr_output, damage, &fx_texture,
&saved_buf->source_box, &dst_box, matrix, deco_data);
}
// FIXME: we should set the surface that this saved buffer originates from
// as sampled here.
// https://github.com/swaywm/sway/pull/4465#discussion_r321082059
}
/**
* Render a view's surface, shadow, 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 decoration_data deco_data) {
struct sway_view *view = con->view;
struct sway_container_state *state = &con->current;
pixman_region32_t output_damage;
pixman_region32_init(&output_damage);
pixman_region32_copy(&output_damage, damage);
adjust_damage_to_workspace_bounds(&output_damage, &deco_data, output);
// render view
if (!wl_list_empty(&view->saved_buffers)) {
render_saved_view(view, output, &output_damage, deco_data);
} else if (view->surface) {
render_view_toplevels(view, output, &output_damage, deco_data);
}
if (state->border == B_CSD && !config->shadows_on_csd_enabled) {
goto end;
return;
}
float output_scale = output->wlr_output->scale;
struct wlr_box box;
// render shadow
if (con->shadow_enabled && config->shadow_blur_sigma > 0 && config->shadow_color[3] > 0.0) {
box.x = floor(state->x) - output->lx;
box.y = floor(state->y) - output->ly;
box.width = state->width;
box.height = state->height;
adjust_box_to_workspace_offset(&box, &deco_data, output);
scale_box(&box, output_scale);
int scaled_corner_radius = deco_data.corner_radius == 0 ?
0 : (deco_data.corner_radius + state->border_thickness) * output_scale;
float* shadow_color = view_is_urgent(view) || state->focused ?
config->shadow_color : config->shadow_inactive_color;
int offset_x = config->shadow_offset_x * output->wlr_output->scale;
int offset_y = config->shadow_offset_y * output->wlr_output->scale;
render_box_shadow(output, &output_damage, &box, shadow_color, config->shadow_blur_sigma,
scaled_corner_radius, offset_x, offset_y);
}
if (state->border == B_NONE || state->border == B_CSD) {
goto end;
return;
}
float color[4];
if (state->border_left) {
memcpy(&color, colors->child_border, sizeof(float) * 4);
premultiply_alpha(color, deco_data.alpha);
box.x = floor(state->x);
box.y = floor(state->content_y);
box.width = state->border_thickness;
box.height = state->content_height;
adjust_box_to_workspace_offset(&box, &deco_data, output);
// adjust sizing for rounded border corners
if (deco_data.corner_radius) {
if (!deco_data.has_titlebar) {
box.y += deco_data.corner_radius;
box.height -= 2 * deco_data.corner_radius;
} else {
box.height -= deco_data.corner_radius;
}
}
scale_box(&box, output_scale);
render_rect(output, &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 (!container_is_current_floating(con) && 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, deco_data.alpha);
box.x = floor(state->content_x + state->content_width);
box.y = floor(state->content_y);
box.width = state->border_thickness;
box.height = state->content_height;
adjust_box_to_workspace_offset(&box, &deco_data, output);
// adjust sizing for rounded border corners
if (deco_data.corner_radius) {
if (!deco_data.has_titlebar) {
box.y += deco_data.corner_radius;
box.height -= 2 * deco_data.corner_radius;
} else {
box.height -= deco_data.corner_radius;
}
}
scale_box(&box, output_scale);
render_rect(output, &output_damage, &box, color);
}
if (state->border_bottom) {
if (!container_is_current_floating(con) && 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, deco_data.alpha);
box.x = floor(state->x);
box.y = floor(state->content_y + state->content_height);
box.width = state->width;
box.height = state->border_thickness;
adjust_box_to_workspace_offset(&box, &deco_data, output);
// adjust sizing for rounded border corners
if (deco_data.corner_radius) {
box.x += deco_data.corner_radius + state->border_thickness;
box.width -= 2 * (deco_data.corner_radius + state->border_thickness);
}
scale_box(&box, output_scale);
render_rect(output, &output_damage, &box, color);
// rounded bottom left & bottom right border corners
if (deco_data.corner_radius) {
int size = 2 * (deco_data.corner_radius + state->border_thickness);
int scaled_thickness = state->border_thickness * output_scale;
int scaled_corner_radius = deco_data.corner_radius * output_scale;
if (state->border_left) {
box.width = size;
box.height = size;
box.x = floor(state->x);
box.y = floor(state->y + state->height - size);
adjust_box_to_workspace_offset(&box, &deco_data, output);
scale_box(&box, output_scale);
render_border_corner(output, &output_damage, &box, color,
scaled_corner_radius, scaled_thickness, BOTTOM_LEFT);
}
if (state->border_right) {
box.width = size;
box.height = size;
box.x = floor(state->x + state->width - size);
box.y = floor(state->y + state->height - size);
adjust_box_to_workspace_offset(&box, &deco_data, output);
scale_box(&box, output_scale);
render_border_corner(output, &output_damage, &box, color,
scaled_corner_radius, scaled_thickness, BOTTOM_RIGHT);
}
}
}
end:
pixman_region32_fini(&output_damage);
}
/**
* 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 is: 1px border, 2px padding, title
*/
static void render_titlebar(struct sway_output *output,
pixman_region32_t *damage, struct sway_container *con, int x, int y,
int width, struct border_colors *colors, struct decoration_data con_deco_data,
enum corner_location corner_location, struct wlr_texture *title_texture,
struct wlr_texture *marks_texture) {
struct wlr_box box;
float color[4];
float output_scale = output->wlr_output->scale;
double output_x = output->lx;
double output_y = output->ly;
int titlebar_border_thickness = config->titlebar_border_thickness;
int titlebar_h_padding = config->titlebar_h_padding;
int titlebar_v_padding = config->titlebar_v_padding;
enum alignment title_align = config->title_align;
// value by which all heights should be adjusted to counteract removed bottom border
int bottom_border_compensation = config->titlebar_separator ? 0 : titlebar_border_thickness;
pixman_region32_t output_damage;
pixman_region32_init(&output_damage);
pixman_region32_copy(&output_damage, damage);
adjust_damage_to_workspace_bounds(&output_damage, &con_deco_data, output);
float alpha = con_deco_data.alpha;
int corner_radius = con_deco_data.corner_radius;
if (corner_location == NONE) {
corner_radius = 0;
}
// Single pixel bar above title
memcpy(&color, colors->border, sizeof(float) * 4);
premultiply_alpha(color, alpha);
box.x = x;
box.y = y;
box.width = width;
if (corner_radius) {
if (corner_location != TOP_RIGHT) {
box.x += corner_radius;
}
if (corner_location == ALL) {
box.width -= corner_radius * 2;
} else {
box.width -= corner_radius;
}
} else {
box.x += titlebar_border_thickness;
box.width -= titlebar_border_thickness * 2;
}
box.height = titlebar_border_thickness;
adjust_box_to_workspace_offset(&box, &con_deco_data, output);
scale_box(&box, output_scale);
render_rect(output, &output_damage, &box, color);
// Single pixel bar below title
if (config->titlebar_separator) {
box.x = x;
box.y = y + container_titlebar_height() - titlebar_border_thickness;
box.width = width;
box.height = titlebar_border_thickness;
adjust_box_to_workspace_offset(&box, &con_deco_data, output);
scale_box(&box, output_scale);
render_rect(output, &output_damage, &box, color);
}
// Single pixel bar left edge
box.x = x;
box.y = y;
box.width = titlebar_border_thickness;
box.height = container_titlebar_height() + bottom_border_compensation;
if (corner_radius && corner_location != TOP_RIGHT) {
box.height -= corner_radius;
box.y += corner_radius;
}
adjust_box_to_workspace_offset(&box, &con_deco_data, output);
scale_box(&box, output_scale);
render_rect(output, &output_damage, &box, color);
// Single pixel bar right edge
box.x = x + width - titlebar_border_thickness;
box.y = y;
box.width = titlebar_border_thickness;
box.height = container_titlebar_height() + bottom_border_compensation;
if (corner_radius && corner_location != TOP_LEFT) {
box.height -= corner_radius;
box.y += corner_radius;
}
adjust_box_to_workspace_offset(&box, &con_deco_data, output);
scale_box(&box, output_scale);
render_rect(output, &output_damage, &box, color);
// if corner_radius: single pixel corners
if (corner_radius) {
// left corner
if (corner_location != TOP_RIGHT) {
box.x = x;
box.y = y;
box.width = corner_radius * 2;
box.height = corner_radius * 2;
adjust_box_to_workspace_offset(&box, &con_deco_data, output);
scale_box(&box, output_scale);
render_border_corner(output, &output_damage, &box, color,
corner_radius, titlebar_border_thickness, TOP_LEFT);
}
// right corner
if (corner_location != TOP_LEFT) {
box.x = x + width - corner_radius * 2;
box.y = y;
box.width = corner_radius * 2;
box.height = corner_radius * 2;
adjust_box_to_workspace_offset(&box, &con_deco_data, output);
scale_box(&box, output_scale);
render_border_corner(output, &output_damage, &box, color,
corner_radius, titlebar_border_thickness, TOP_RIGHT);
}
}
int inner_x = x - output_x + titlebar_h_padding;
int bg_y = y + titlebar_border_thickness;
size_t inner_width = width - titlebar_h_padding * 2;
// output-buffer local
int ob_inner_x = round(inner_x * output_scale);
int ob_inner_width = scale_length(inner_width, inner_x, output_scale);
int ob_bg_height = scale_length(
(titlebar_v_padding - titlebar_border_thickness) * 2 +
config->font_height, bg_y, output_scale);
// title marks textures should have no eyecandy
struct decoration_data deco_data = get_undecorated_decoration_data();
deco_data.alpha = alpha;
// Marks
int ob_marks_x = 0; // output-buffer-local
int ob_marks_width = 0; // output-buffer-local
if (config->show_marks && marks_texture) {
struct wlr_box texture_box = {
.width = marks_texture->width,
.height = marks_texture->height,
};
ob_marks_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. If the title is on the right, the marks will be on
// the left. Otherwise, they will be on the right.
if (title_align == ALIGN_RIGHT || texture_box.width > ob_inner_width) {
texture_box.x = ob_inner_x;
} else {
texture_box.x = ob_inner_x + ob_inner_width - texture_box.width;
}
ob_marks_x = texture_box.x;
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 (ob_inner_width < texture_box.width) {
texture_box.width = ob_inner_width;
}
struct fx_texture fx_texture = fx_texture_from_wlr_texture(marks_texture);
render_texture(output->wlr_output, &output_damage, &fx_texture,
NULL, &texture_box, matrix, deco_data);
// Padding above
memcpy(&color, colors->background, sizeof(float) * 4);
premultiply_alpha(color, 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;
adjust_box_to_workspace_offset(&box, &con_deco_data, output);
render_rect(output, &output_damage, &box, color);
// Padding below
box.y += ob_padding_above + texture_box.height;
box.height = ob_padding_below + bottom_border_compensation;
adjust_box_to_workspace_offset(&box, &con_deco_data, output);
render_rect(output, &output_damage, &box, color);
}
// Title text
int ob_title_x = 0; // output-buffer-local
int ob_title_width = 0; // output-buffer-local
if (title_texture) {
struct wlr_box texture_box = {
.width = title_texture->width,
.height = title_texture->height,
};
// The effective output may be NULL when con is not on any output.
// This can happen because we render all children of containers,
// even those that are out of the bounds of any output.
struct sway_output *effective = container_get_effective_output(con);
float title_scale = effective ? effective->wlr_output->scale : output_scale;
texture_box.width = texture_box.width * output_scale / title_scale;
texture_box.height = texture_box.height * output_scale / title_scale;
ob_title_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((titlebar_v_padding -
titlebar_border_thickness) * output_scale);
int ob_padding_below = ob_bg_height - ob_padding_above -
texture_box.height;
// Render texture
if (texture_box.width > ob_inner_width - ob_marks_width) {
texture_box.x = (title_align == ALIGN_RIGHT && ob_marks_width)
? ob_marks_x + ob_marks_width : ob_inner_x;
} else if (title_align == ALIGN_LEFT) {
texture_box.x = ob_inner_x;
} else if (title_align == ALIGN_CENTER) {
// If there are marks visible, center between the edge and marks.
// Otherwise, center in the inner area.
if (ob_marks_width) {
texture_box.x = (ob_inner_x + ob_marks_x) / 2
- texture_box.width / 2;
} else {
texture_box.x = ob_inner_x + ob_inner_width / 2
- texture_box.width / 2;
}
} else {
texture_box.x = ob_inner_x + ob_inner_width - texture_box.width;
}
ob_title_x = texture_box.x;
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 (ob_inner_width - ob_marks_width < texture_box.width) {
texture_box.width = ob_inner_width - ob_marks_width;
}
struct fx_texture fx_texture = fx_texture_from_wlr_texture(title_texture);
render_texture(output->wlr_output, &output_damage, &fx_texture,
NULL, &texture_box, matrix, deco_data);
// Padding above
memcpy(&color, colors->background, sizeof(float) * 4);
premultiply_alpha(color, 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, &output_damage, &box, color);
// Padding below
box.y += ob_padding_above + texture_box.height;
box.height = ob_padding_below + bottom_border_compensation;
render_rect(output, &output_damage, &box, color);
}
// Determine the left + right extends of the textures (output-buffer local)
int ob_left_x, ob_left_width, ob_right_x, ob_right_width;
if (ob_title_width == 0 && ob_marks_width == 0) {
ob_left_x = ob_inner_x;
ob_left_width = 0;
ob_right_x = ob_inner_x;
ob_right_width = 0;
} else if (ob_title_x < ob_marks_x) {
ob_left_x = ob_title_x;
ob_left_width = ob_title_width;
ob_right_x = ob_marks_x;
ob_right_width = ob_marks_width;
} else {
ob_left_x = ob_marks_x;
ob_left_width = ob_marks_width;
ob_right_x = ob_title_x;
ob_right_width = ob_title_width;
}
if (ob_left_x < ob_inner_x) {
ob_left_x = ob_inner_x;
} else if (ob_left_x + ob_left_width > ob_right_x + ob_right_width) {
ob_right_x = ob_left_x;
ob_right_width = ob_left_width;
}
// Filler between title and marks
box.width = ob_right_x - ob_left_x - ob_left_width;
if (box.width > 0) {
box.x = ob_left_x + ob_left_width + round(output_x * output_scale);
box.y = round(bg_y * output_scale);
box.height = ob_bg_height + bottom_border_compensation;
render_rect(output, &output_damage, &box, color);
}
// Padding on left side
box.x = x + titlebar_border_thickness;
box.y = y + titlebar_border_thickness;
box.width = titlebar_h_padding - titlebar_border_thickness;
box.height = (titlebar_v_padding - titlebar_border_thickness) * 2 +
config->font_height + bottom_border_compensation;
scale_box(&box, output_scale);
int left_x = ob_left_x + round(output_x * output_scale);
if (box.x + box.width < left_x) {
box.width += left_x - box.x - box.width;
}
if (corner_radius && corner_location != TOP_RIGHT) {
render_rounded_rect(output, &output_damage, &box, color, corner_radius, TOP_LEFT);
} else {
render_rect(output, &output_damage, &box, color);
}
// Padding on right side
box.x = x + width - titlebar_h_padding;
box.y = y + titlebar_border_thickness;
box.width = titlebar_h_padding - titlebar_border_thickness;
box.height = (titlebar_v_padding - titlebar_border_thickness) * 2 +
config->font_height + bottom_border_compensation;
scale_box(&box, output_scale);
int right_rx = ob_right_x + ob_right_width + round(output_x * output_scale);
if (right_rx < box.x) {
box.width += box.x - right_rx;
box.x = right_rx;
}
if (corner_radius && corner_location != TOP_LEFT) {
render_rounded_rect(output, &output_damage, &box, color, corner_radius, TOP_RIGHT);
} else {
render_rect(output, &output_damage, &box, color);
}
pixman_region32_fini(&output_damage);
}
/**
* Render the top border line for a view using "border pixel".
*/
static void render_top_border(struct sway_output *output,
pixman_region32_t *damage, struct sway_container_state *state,
struct border_colors *colors, struct decoration_data border_deco_data) {
if (!state->border_top) {
return;
}
struct wlr_box box;
float color[4];
float output_scale = output->wlr_output->scale;
pixman_region32_t output_damage;
pixman_region32_init(&output_damage);
pixman_region32_copy(&output_damage, damage);
adjust_damage_to_workspace_bounds(&output_damage, &border_deco_data, output);
float alpha = border_deco_data.alpha;
int corner_radius = border_deco_data.corner_radius;
// Child border - top edge
memcpy(&color, colors->child_border, sizeof(float) * 4);
premultiply_alpha(color, alpha);
box.x = floor(state->x);
box.y = floor(state->y);
box.width = state->width;
box.height = state->border_thickness;
// adjust sizing for rounded border corners
if (corner_radius) {
box.x += corner_radius + state->border_thickness;
box.width -= 2 * (corner_radius + state->border_thickness);
}
adjust_box_to_workspace_offset(&box, &border_deco_data, output);
scale_box(&box, output_scale);
render_rect(output, &output_damage, &box, color);
// render rounded top corner borders if corner_radius is set > 0
if (corner_radius) {
int size = 2 * (corner_radius + state->border_thickness);
int scaled_thickness = state->border_thickness * output_scale;
int scaled_corner_radius = corner_radius * output_scale;
// top left
if (state->border_left) {
box.width = size;
box.height = size;
box.x = floor(state->x);
box.y = floor(state->y);
adjust_box_to_workspace_offset(&box, &border_deco_data, output);
scale_box(&box, output_scale);
render_border_corner(output, &output_damage, &box, color,
scaled_corner_radius, scaled_thickness, TOP_LEFT);
}
// top right
if (state->border_right) {
box.width = size;
box.height = size;
box.x = floor(state->x + state->width - size);
box.y = floor(state->y);
adjust_box_to_workspace_offset(&box, &border_deco_data, output);
scale_box(&box, output_scale);
render_border_corner(output, &output_damage, &box, color,
scaled_corner_radius, scaled_thickness, TOP_RIGHT);
}
}
pixman_region32_fini(&output_damage);
}
struct parent_data {
enum sway_container_layout layout;
struct wlr_box box;
list_t *children;
bool focused;
struct sway_container *active_child;
bool on_focused_workspace;
};
static void render_container(struct sway_output *output,
pixman_region32_t *damage, struct sway_container *con, bool parent_focused,
bool is_current_ws);
/**
* 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 (container_is_scratchpad_hidden(child)) {
continue;
}
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 = child->marks_urgent;
} else if (state->focused || parent->focused) {
colors = &config->border_colors.focused;
title_texture = child->title_focused;
marks_texture = child->marks_focused;
} else if (child == parent->active_child) {
colors = &config->border_colors.focused_inactive;
title_texture = child->title_focused_inactive;
marks_texture = child->marks_focused_inactive;
} else {
colors = &config->border_colors.unfocused;
title_texture = child->title_unfocused;
marks_texture = child->marks_unfocused;
}
bool has_titlebar = state->border == B_NORMAL;
struct decoration_data deco_data = {
.alpha = child->alpha,
.dim_color = view_is_urgent(view)
? config->dim_inactive_colors.urgent
: config->dim_inactive_colors.unfocused,
.dim = child->current.focused || parent->focused ? 0.0f : child->dim,
// no corner radius if no gaps (allows smart_gaps to work as expected)
.corner_radius = config->smart_corner_radius &&
output->current.active_workspace->current_gaps.top == 0
? 0 : child->corner_radius,
.saturation = child->saturation,
.has_titlebar = has_titlebar,
.blur = child->blur_enabled,
.discard_transparent = false,
.shadow = child->shadow_enabled,
.on_focused_workspace = parent->on_focused_workspace,
};
render_view(output, damage, child, colors, deco_data);
if (has_titlebar) {
render_titlebar(output, damage, child, floor(state->x), floor(state->y),
state->width, colors, deco_data, ALL, title_texture, marks_texture);
} else if (state->border == B_PIXEL) {
render_top_border(output, damage, state, colors, deco_data);
}
} else {
render_container(output, damage, child,
parent->focused || child->current.focused,
parent->on_focused_workspace);
}
}
}
static bool container_is_focused(struct sway_container *con, void *data) {
return con->current.focused;
}
static bool container_has_focused_child(struct sway_container *con) {
return container_find_child(con, container_is_focused, NULL);
}
/**
* 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;
struct decoration_data deco_data = {
.alpha = current->alpha,
.dim_color = current->view && view_is_urgent(current->view)
? config->dim_inactive_colors.urgent
: config->dim_inactive_colors.unfocused,
.dim = current->current.focused || parent->focused ? 0.0f : current->dim,
// no corner radius if no gaps (allows smart_gaps to work as expected)
.corner_radius = config->smart_corner_radius &&
output->current.active_workspace->current_gaps.top == 0
? 0 : current->corner_radius,
.saturation = current->saturation,
.has_titlebar = true,
.blur = current->blur_enabled,
.discard_transparent = false,
.shadow = current->shadow_enabled,
.on_focused_workspace = parent->on_focused_workspace,
};
// 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 = child->marks_urgent;
} else if (cstate->focused || parent->focused) {
colors = &config->border_colors.focused;
title_texture = child->title_focused;
marks_texture = child->marks_focused;
} else if (config->has_focused_tab_title && container_has_focused_child(child)) {
colors = &config->border_colors.focused_tab_title;
title_texture = child->title_focused_tab_title;
marks_texture = child->marks_focused_tab_title;
} else if (child == parent->active_child) {
colors = &config->border_colors.focused_inactive;
title_texture = child->title_focused_inactive;
marks_texture = child->marks_focused_inactive;
} else {
colors = &config->border_colors.unfocused;
title_texture = child->title_unfocused;
marks_texture = child->marks_unfocused;
}
int x = floor(cstate->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;
}
// only round outer corners
enum corner_location corner_location = NONE;
if (i == 0) {
if (i == parent->children->length - 1) {
corner_location = ALL;
} else {
corner_location = TOP_LEFT;
}
} else if (i == parent->children->length - 1) {
corner_location = TOP_RIGHT;
}
render_titlebar(output, damage, child, x, parent->box.y, tab_width, colors,
deco_data, corner_location, 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, deco_data);
} else {
render_container(output, damage, current,
parent->focused || current->current.focused,
parent->on_focused_workspace);
}
}
/**
* 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();
struct decoration_data deco_data = {
.alpha = current->alpha,
.dim_color = current->view && view_is_urgent(current->view)
? config->dim_inactive_colors.urgent
: config->dim_inactive_colors.unfocused,
.dim = current->current.focused || parent->focused ? 0.0f : current->dim,
.saturation = current->saturation,
.corner_radius = config->smart_corner_radius &&
output->current.active_workspace->current_gaps.top == 0
? 0 : current->corner_radius,
.has_titlebar = true,
.blur = current->blur_enabled,
.discard_transparent = false,
.shadow = current->shadow_enabled,
.on_focused_workspace = parent->on_focused_workspace,
};
// 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 = child->marks_urgent;
} else if (cstate->focused || parent->focused) {
colors = &config->border_colors.focused;
title_texture = child->title_focused;
marks_texture = child->marks_focused;
} else if (config->has_focused_tab_title && container_has_focused_child(child)) {
colors = &config->border_colors.focused_tab_title;
title_texture = child->title_focused_tab_title;
marks_texture = child->marks_focused_tab_title;
} else if (child == parent->active_child) {
colors = &config->border_colors.focused_inactive;
title_texture = child->title_focused_inactive;
marks_texture = child->marks_focused_inactive;
} else {
colors = &config->border_colors.unfocused;
title_texture = child->title_unfocused;
marks_texture = child->marks_unfocused;
}
int y = parent->box.y + titlebar_height * i;
struct decoration_data titlebar_deco_data = deco_data;
titlebar_deco_data.corner_radius = i != 0 ? 0 : deco_data.corner_radius;
render_titlebar(output, damage, child, parent->box.x, y, parent->box.width,
colors, titlebar_deco_data, ALL, 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, deco_data);
} else {
render_container(output, damage, current,
parent->focused || current->current.focused,
parent->on_focused_workspace);
}
}
static void render_containers(struct sway_output *output,
pixman_region32_t *damage, struct parent_data *parent) {
if (config->hide_lone_tab && parent->children->length == 1) {
struct sway_container *child = parent->children->items[0];
if (child->view) {
render_containers_linear(output,damage, parent);
return;
}
}
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,
bool is_focused_ws) {
struct parent_data data = {
.layout = con->current.layout,
.box = {
.x = floor(con->current.x),
.y = floor(con->current.y),
.width = con->current.width,
.height = con->current.height,
},
.children = con->current.children,
.focused = focused,
.active_child = con->current.focused_inactive_child,
.on_focused_workspace = is_focused_ws,
};
render_containers(output, damage, &data);
}
static void render_workspace(struct sway_output *output,
pixman_region32_t *damage, struct sway_workspace *ws, bool focused,
struct sway_workspace *other_ws) {
struct sway_workspace *workspaces[2] = { other_ws, ws };
for (int i = 0; i < 2; i++) {
struct sway_workspace *workspace = workspaces[i];
if (!workspace || !workspace->current.tiling) {
continue;
}
struct parent_data data = {
.layout = workspace->current.layout,
.box = {
.x = floor(workspace->current.x),
.y = floor(workspace->current.y),
.width = workspace->current.width,
.height = workspace->current.height,
},
.children = workspace->current.tiling,
.focused = ws == workspace ? focused : false,
.active_child = workspace->current.focused_inactive_child,
.on_focused_workspace = ws == workspace,
};
render_containers(output, damage, &data);
}
}
static void render_floating_container(struct sway_output *soutput,
pixman_region32_t *damage, struct sway_container *con,
bool is_focused_ws) {
struct sway_container_state *state = &con->current;
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 = con->marks_urgent;
} else if (state->focused) {
colors = &config->border_colors.focused;
title_texture = con->title_focused;
marks_texture = con->marks_focused;
} else {
colors = &config->border_colors.unfocused;
title_texture = con->title_unfocused;
marks_texture = con->marks_unfocused;
}
bool has_titlebar = state->border == B_NORMAL;
struct decoration_data deco_data = {
.alpha = con->alpha,
.dim_color = view_is_urgent(view)
? config->dim_inactive_colors.urgent
: config->dim_inactive_colors.unfocused,
.dim = con->current.focused ? 0.0f : con->dim,
.saturation = con->saturation,
.corner_radius = con->corner_radius,
.has_titlebar = has_titlebar,
.blur = con->blur_enabled,
.discard_transparent = false,
.shadow = con->shadow_enabled,
.on_focused_workspace = is_focused_ws,
};
render_view(soutput, damage, con, colors, deco_data);
if (has_titlebar) {
render_titlebar(soutput, damage, con, floor(state->x), floor(state->y),
state->width, colors, deco_data, ALL, title_texture, marks_texture);
} else if (state->border == B_PIXEL) {
render_top_border(soutput, damage, state, colors, deco_data);
}
} else {
render_container(soutput, damage, con, state->focused, is_focused_ws);
}
}
static void render_floating(struct sway_output *soutput,
pixman_region32_t *damage, struct sway_workspace *other_ws,
bool has_fullscreen) {
for (int i = 0; i < root->outputs->length; ++i) {
struct sway_output *output = root->outputs->items[i];
// Don't render floating windows across outputs when switching workspaces
if (output->workspace_scroll.percent != 0 && output != soutput) {
continue;
}
struct sway_workspace *visible_ws = output->current.active_workspace;
for (int j = 0; j < output->current.workspaces->length; ++j) {
struct sway_workspace *ws = output->current.workspaces->items[j];
float scroll_percent = soutput->workspace_scroll.percent;
// Only render visible workspace when not scrolling
bool ws_is_visible = workspace_is_visible(ws);
if (!ws_is_visible && scroll_percent == 0) {
continue;
}
// Only render affected workspaces
if ((ws != other_ws && ws != visible_ws) ||
(ws_is_visible && has_fullscreen)) {
continue;
}
for (int k = 0; k < ws->current.floating->length; ++k) {
struct sway_container *floater = ws->current.floating->items[k];
if (floater->current.fullscreen_mode != FULLSCREEN_NONE) {
continue;
}
render_floating_container(soutput, damage, floater, ws == visible_ws);
}
}
}
}
static void render_seatops(struct sway_output *output,
pixman_region32_t *damage) {
struct sway_seat *seat;
wl_list_for_each(seat, &server.input->seats, link) {
seatop_render(seat, output, damage);
}
}
static void render_fullscreen_con(pixman_region32_t *damage,
struct sway_output *output, struct sway_container *fullscreen_con,
struct sway_workspace *workspace, bool clear_whole_screen) {
struct wlr_output *wlr_output = output->wlr_output;
struct decoration_data deco_data = get_undecorated_decoration_data();
deco_data.saturation = fullscreen_con->saturation;
deco_data.on_focused_workspace = workspace == output->current.active_workspace;
// Only clear the transformed fullscreen bounds
pixman_region32_t dmg;
pixman_region32_init(&dmg);
if (!clear_whole_screen) {
pixman_region32_copy(&dmg, damage);
adjust_damage_to_workspace_bounds(&dmg, &deco_data, output);
damage = &dmg;
}
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]);
fx_renderer_clear(clear_color);
}
if (fullscreen_con->view) {
if (!wl_list_empty(&fullscreen_con->view->saved_buffers)) {
render_saved_view(fullscreen_con->view, output, damage, deco_data);
} else if (fullscreen_con->view->surface) {
render_view_toplevels(fullscreen_con->view, output, damage, deco_data);
}
} else {
render_container(output, damage, fullscreen_con, fullscreen_con->current.focused,
deco_data.on_focused_workspace);
}
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, deco_data.on_focused_workspace);
}
}
#if HAVE_XWAYLAND
render_unmanaged(output, damage, &root->xwayland_unmanaged);
#endif
pixman_region32_fini(&dmg);
}
void output_render(struct sway_output *output, struct timespec *when,
pixman_region32_t *damage) {
struct wlr_output *wlr_output = output->wlr_output;
struct fx_renderer *renderer = output->renderer;
struct sway_workspace *workspace = output->current.active_workspace;
if (workspace == NULL) {
return;
}
// Get the sibling workspaces
struct sway_workspace *other_ws = NULL;
if (output->workspace_scroll.percent < 0) {
other_ws = workspace_output_prev_wrap(workspace,
config->workspace_gesture_wrap_around);
} else if (output->workspace_scroll.percent > 0) {
other_ws = workspace_output_next_wrap(workspace,
config->workspace_gesture_wrap_around);
}
struct sway_container *fullscreen_con = root->fullscreen_global;
if (!fullscreen_con) {
fullscreen_con = workspace->current.fullscreen;
}
// Also check if the sibling workspace has a fullscreen container
bool has_fullscreen = fullscreen_con != NULL;
bool other_ws_has_fullscreen = false;
if (other_ws) {
other_ws_has_fullscreen = other_ws->current.fullscreen;
if (!has_fullscreen) {
has_fullscreen = other_ws_has_fullscreen;
}
}
// TODO: generate the monitor box in fx_renderer (since it already has a wlr_output)
struct wlr_box monitor_box = get_monitor_box(wlr_output);
wlr_box_transform(&monitor_box, &monitor_box,
wlr_output_transform_invert(wlr_output->transform),
monitor_box.width, monitor_box.height);
fx_renderer_begin(renderer, monitor_box.width, monitor_box.height);
int output_width, output_height;
wlr_output_transformed_resolution(wlr_output, &output_width, &output_height);
if (debug.damage == DAMAGE_RERENDER || output->workspace_scroll.percent != 0) {
pixman_region32_union_rect(damage, damage, 0, 0, output_width, output_height);
}
if (!pixman_region32_not_empty(damage)) {
// Output isn't damaged but needs buffer swap
goto renderer_end;
}
if (debug.damage == DAMAGE_HIGHLIGHT) {
fx_renderer_clear((float[]){1, 1, 0, 1});
}
if (server.session_lock.locked) {
float clear_color[] = {0.0f, 0.0f, 0.0f, 1.0f};
if (server.session_lock.lock == NULL) {
// abandoned lock -> red BG
clear_color[0] = 1.f;
}
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(wlr_output, &rects[i]);
fx_renderer_clear(clear_color);
}
if (server.session_lock.lock != NULL) {
struct render_data data = {
.damage = damage,
.deco_data = get_undecorated_decoration_data(),
};
struct wlr_session_lock_surface_v1 *lock_surface;
wl_list_for_each(lock_surface, &server.session_lock.lock->surfaces, link) {
if (lock_surface->output != wlr_output) {
continue;
}
if (!lock_surface->mapped) {
continue;
}
output_surface_for_each_surface(output, lock_surface->surface,
0.0, 0.0, render_surface_iterator, &data);
}
}
goto renderer_end;
}
if (output_has_opaque_overlay_layer_surface(output)) {
goto render_overlay;
}
if (fullscreen_con && output->workspace_scroll.percent == 0) {
// Only draw fullscreen con if not transitioning between workspaces
render_fullscreen_con(damage, output, fullscreen_con, workspace, true);
} else {
pixman_region32_t blur_region;
pixman_region32_init(&blur_region);
bool workspace_has_blur = workspace_get_blur_info(workspace, &blur_region);
// Expand the damage to compensate for blur
if (workspace_has_blur) {
// Skip the blur artifact prevention if damaging the whole viewport
if (renderer->blur_buffer_dirty) {
// Needs to be extended before clearing
pixman_region32_union_rect(damage, damage,
0, 0, output_width, output_height);
} else {
// copy the surrounding content where the blur would display artifacts
// and draw it above the artifacts
// ensure that the damage isn't expanding past the output's size
int32_t damage_width = damage->extents.x2 - damage->extents.x1;
int32_t damage_height = damage->extents.y2 - damage->extents.y1;
if (damage_width > output_width || damage_height > output_height) {
pixman_region32_intersect_rect(damage, damage,
0, 0, output_width, output_height);
} else {
// Expand the original damage to compensate for surrounding
// blurred views to avoid sharp edges between damage regions
wlr_region_expand(damage, damage, config_get_blur_size());
}
pixman_region32_t extended_damage;
pixman_region32_init(&extended_damage);
pixman_region32_intersect(&extended_damage, damage, &blur_region);
// Expand the region to compensate for blur artifacts
wlr_region_expand(&extended_damage, &extended_damage, config_get_blur_size());
// Limit to the monitors viewport
pixman_region32_intersect_rect(&extended_damage, &extended_damage,
0, 0, output_width, output_height);
// capture the padding pixels around the blur where artifacts will be drawn
pixman_region32_subtract(&renderer->blur_padding_region,
&extended_damage, damage);
// Combine into the surface damage (we need to redraw the padding area as well)
pixman_region32_union(damage, damage, &extended_damage);
pixman_region32_fini(&extended_damage);
// Capture the padding pixels before blur for later use
fx_framebuffer_bind(&renderer->blur_saved_pixels_buffer);
// TODO: Investigate blitting instead
render_whole_output(renderer, wlr_output,
&renderer->blur_padding_region, &renderer->wlr_buffer.texture);
fx_framebuffer_bind(&renderer->wlr_buffer);
}
}
pixman_region32_fini(&blur_region);
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]);
fx_renderer_clear(clear_color);
}
render_layer_toplevel(output, damage,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND]);
render_layer_toplevel(output, damage,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM]);
// check if the background needs to be blurred
if (workspace_has_blur && renderer->blur_buffer_dirty) {
render_output_blur(output, damage);
}
render_workspace(output, damage, !fullscreen_con ? workspace : NULL,
workspace->current.focused,
!other_ws_has_fullscreen ? other_ws : NULL);
render_floating(output, damage,
!other_ws_has_fullscreen ? other_ws : NULL,
fullscreen_con != NULL);
#if HAVE_XWAYLAND
render_unmanaged(output, damage, &root->xwayland_unmanaged);
#endif
render_layer_toplevel(output, damage,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP]);
render_layer_popups(output, damage,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND]);
render_layer_popups(output, damage,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM]);
render_layer_popups(output, damage,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP]);
// Render the fullscreen containers on top
if (has_fullscreen) {
struct sway_workspace *workspaces[2] = { other_ws, workspace };
for (int i = 0; i < 2; i++) {
struct sway_workspace *ws = workspaces[i];
if (!ws) {
// Render a blank rect next to the fullscreen container if
// there's nothing to render
struct decoration_data deco_data = get_undecorated_decoration_data();
deco_data.on_focused_workspace = false;
struct wlr_box mon_box = { 0, 0, output->width, output->height };
adjust_box_to_workspace_offset(&mon_box, &deco_data, output);
scale_box(&mon_box, output->wlr_output->scale);
render_rect(output, damage, &mon_box, clear_color);
// Render a shadow to separate the edge and the fullscreen
// container
if (!config_should_parameters_shadow()) {
continue;
}
struct wlr_box shadow_box = { 0, 0, output->width, output->height };
deco_data.on_focused_workspace = true;
adjust_box_to_workspace_offset(&shadow_box, &deco_data, output);
scale_box(&shadow_box, output->wlr_output->scale);
// Render rect to fix minor pixel gaps between fullscreen
// container and shadow
render_rect(output, damage, &shadow_box, clear_color);
render_box_shadow(output, damage, &shadow_box,
config->shadow_color, config->shadow_blur_sigma, 0,
0, 0);
continue;
}
struct sway_container *f_con = ws == workspace ?
fullscreen_con : ws->current.fullscreen;
if (f_con) {
render_fullscreen_con(damage, output, f_con, ws, false);
}
}
}
}
render_seatops(output, damage);
struct sway_seat *seat = input_manager_current_seat();
struct sway_container *focus = seat_get_focused_container(seat);
if (focus && focus->view) {
struct decoration_data deco_data = {
.alpha = focus->alpha,
.dim_color = view_is_urgent(focus->view)
? config->dim_inactive_colors.urgent
: config->dim_inactive_colors.unfocused,
.dim = focus->current.focused ? 0.0f : focus->dim,
.corner_radius = 0,
.saturation = focus->saturation,
.has_titlebar = false,
.blur = false,
.discard_transparent = false,
.shadow = false,
.on_focused_workspace = true,
};
render_view_popups(focus->view, output, damage, deco_data);
}
render_overlay:
render_layer_toplevel(output, damage,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY]);
render_layer_popups(output, damage,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY]);
render_drag_icons(output, damage, &root->drag_icons);
renderer_end:
// Not needed if we damaged the whole viewport
if (!renderer->blur_buffer_dirty) {
// Render the saved pixels over the blur artifacts
// TODO: Investigate blitting instead
render_whole_output(renderer, wlr_output, &renderer->blur_padding_region,
&renderer->blur_saved_pixels_buffer.texture);
}
fx_renderer_end(output->renderer);
fx_renderer_scissor(NULL);
// Draw the software cursors
wlr_renderer_begin(output->server->wlr_renderer, wlr_output->width, wlr_output->height);
wlr_output_render_software_cursors(wlr_output, damage);
wlr_renderer_end(output->server->wlr_renderer);
pixman_region32_t frame_damage;
pixman_region32_init(&frame_damage);
enum wl_output_transform transform = wlr_output_transform_invert(wlr_output->transform);
wlr_region_transform(&frame_damage, damage, transform, output_width, output_height);
if (debug.damage != DAMAGE_DEFAULT) {
pixman_region32_union_rect(&frame_damage, &frame_damage,
0, 0, wlr_output->width, wlr_output->height);
}
wlr_output_set_damage(wlr_output, &frame_damage);
pixman_region32_fini(&frame_damage);
if (!wlr_output_commit(wlr_output)) {
return;
}
wlr_damage_ring_rotate(&output->damage_ring);
output->last_frame = *when;
}
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