Add make_shadow and paint_all_new to backend_common.c

Also made make_shadow private in render.c

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui 2018-12-31 14:27:18 +00:00
parent 3b2e149369
commit 86713c8170
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GPG Key ID: 37C999F617EA1A47
7 changed files with 245 additions and 10 deletions

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@ -1,4 +1,5 @@
#include "backend.h"
#include "common.h"
backend_info_t *backend_list[NUM_BKEND] = {[BKEND_XRENDER] = &xrender_backend};

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@ -2,9 +2,11 @@
// Copyright (c) 2018, Yuxuan Shui <yshuiv7@gmail.com>
#pragma once
#include "common.h"
#include "region.h"
typedef struct session session_t;
typedef struct win win;
typedef struct backend_info {
// =========== Initialization ===========
@ -124,7 +126,7 @@ typedef struct backend_info {
extern backend_info_t xrender_backend;
extern backend_info_t glx_backend;
extern backend_info_t *backend_list[NUM_BKEND];
extern backend_info_t *backend_list[];
bool default_is_win_transparent(void *, win *, void *);
bool default_is_frame_transparent(void *, win *, void *);

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@ -1,7 +1,9 @@
#include <xcb/xcb_image.h>
#include "render.h"
#include "backend.h"
#include "backend_common.h"
#include "x.h"
#include "common.h"
/**
* Generate a 1x1 <code>Picture</code> of a particular color.
@ -16,16 +18,16 @@ solid_picture(session_t *ps, bool argb, double a, double r, double g, double b)
pixmap = x_create_pixmap(ps, argb ? 32 : 8, ps->root, 1, 1);
if (!pixmap)
return None;
return XCB_NONE;
pa.repeat = True;
pa.repeat = 1;
picture = x_create_picture_with_standard_and_pixmap(
ps, argb ? XCB_PICT_STANDARD_ARGB_32 : XCB_PICT_STANDARD_A_8, pixmap,
XCB_RENDER_CP_REPEAT, &pa);
if (!picture) {
xcb_free_pixmap(ps->c, pixmap);
return None;
return XCB_NONE;
}
col.alpha = a * 0xffff;
@ -44,6 +46,120 @@ solid_picture(session_t *ps, bool argb, double a, double r, double g, double b)
return picture;
}
static xcb_image_t *make_shadow(session_t *ps, double opacity, int width, int height) {
xcb_image_t *ximage;
int ylimit, xlimit;
int swidth = width + ps->cgsize;
int sheight = height + ps->cgsize;
int center = ps->cgsize / 2;
int x, y;
unsigned char d;
int x_diff;
int opacity_int = (int)(opacity * 25);
ximage = xcb_image_create_native(ps->c, swidth, sheight,
XCB_IMAGE_FORMAT_Z_PIXMAP, 8, 0, 0, NULL);
if (!ximage) {
log_error("failed to create an X image");
return 0;
}
unsigned char *data = ximage->data;
uint32_t sstride = ximage->stride;
/*
* Build the gaussian in sections
*/
/*
* center (fill the complete data array)
*/
// XXX If the center part of the shadow would be entirely covered by
// the body of the window, we shouldn't need to fill the center here.
// XXX In general, we want to just fill the part that is not behind
// the window, in order to reduce CPU load and make transparent window
// look correct
if (ps->cgsize > 0) {
d = ps->shadow_top[opacity_int * (ps->cgsize + 1) + ps->cgsize];
} else {
d = (unsigned char)(sum_kernel(ps->gaussian_map, center, center, width,
height) *
opacity * 255.0);
}
memset(data, d, sheight * swidth);
/*
* corners
*/
ylimit = ps->cgsize;
if (ylimit > sheight / 2)
ylimit = (sheight + 1) / 2;
xlimit = ps->cgsize;
if (xlimit > swidth / 2)
xlimit = (swidth + 1) / 2;
for (y = 0; y < ylimit; y++) {
for (x = 0; x < xlimit; x++) {
if (xlimit == ps->cgsize && ylimit == ps->cgsize) {
d = ps->shadow_corner[opacity_int * (ps->cgsize + 1) *
(ps->cgsize + 1) +
y * (ps->cgsize + 1) + x];
} else {
d = (unsigned char)(sum_kernel(ps->gaussian_map, x - center,
y - center, width, height) *
opacity * 255.0);
}
data[y * sstride + x] = d;
data[(sheight - y - 1) * sstride + x] = d;
data[(sheight - y - 1) * sstride + (swidth - x - 1)] = d;
data[y * sstride + (swidth - x - 1)] = d;
}
}
/*
* top/bottom
*/
x_diff = swidth - (ps->cgsize * 2);
if (x_diff > 0 && ylimit > 0) {
for (y = 0; y < ylimit; y++) {
if (ylimit == ps->cgsize) {
d = ps->shadow_top[opacity_int * (ps->cgsize + 1) + y];
} else {
d = (unsigned char)(sum_kernel(ps->gaussian_map, center,
y - center, width, height) *
opacity * 255.0);
}
memset(&data[y * sstride + ps->cgsize], d, x_diff);
memset(&data[(sheight - y - 1) * sstride + ps->cgsize], d, x_diff);
}
}
/*
* sides
*/
for (x = 0; x < xlimit; x++) {
if (xlimit == ps->cgsize) {
d = ps->shadow_top[opacity_int * (ps->cgsize + 1) + x];
} else {
d = (unsigned char)(sum_kernel(ps->gaussian_map, x - center,
center, width, height) *
opacity * 255.0);
}
for (y = ps->cgsize; y < sheight - ps->cgsize; y++) {
data[y * sstride + x] = d;
data[y * sstride + (swidth - x - 1)] = d;
}
}
return ximage;
}
/**
* Generate shadow <code>Picture</code> for a window.
*/
@ -113,4 +229,112 @@ shadow_picture_err:
return false;
}
/// paint all windows
void paint_all_new(session_t *ps, region_t *region, win *const t) {
auto bi = backend_list[ps->o.backend];
assert(bi);
#ifdef DEBUG_REPAINT
static struct timespec last_paint = {0};
#endif
// Ignore out-of-screen damages
pixman_region32_intersect(region, region, &ps->screen_reg);
region_t reg_tmp, *reg_paint;
pixman_region32_init(&reg_tmp);
if (t) {
// Calculate the region upon which the root window (wallpaper) is to be
// painted based on the ignore region of the lowest window, if available
pixman_region32_subtract(&reg_tmp, region, t->reg_ignore);
reg_paint = &reg_tmp;
} else {
reg_paint = region;
}
if (bi->prepare)
bi->prepare(ps->backend_data, ps, reg_paint);
// Windows are sorted from bottom to top
// Each window has a reg_ignore, which is the region obscured by all the windows
// on top of that window. This is used to reduce the number of pixels painted.
//
// Whether this is beneficial is to be determined XXX
for (win *w = t; w; w = w->prev_trans) {
// Calculate the region based on the reg_ignore of the next (higher)
// window and the bounding region
// XXX XXX
pixman_region32_subtract(&reg_tmp, region, w->reg_ignore);
if (pixman_region32_not_empty(&reg_tmp)) {
// Render window content
// XXX do this in preprocess?
bi->render_win(ps->backend_data, ps, w, w->win_data, &reg_tmp);
// Blur window background
bool win_transparent =
bi->is_win_transparent(ps->backend_data, w, w->win_data);
bool frame_transparent =
bi->is_frame_transparent(ps->backend_data, w, w->win_data);
if (w->blur_background &&
(win_transparent ||
(ps->o.blur_background_frame && frame_transparent))) {
// Minimize the region we try to blur, if the window
// itself is not opaque, only the frame is.
region_t reg_blur = win_get_bounding_shape_global_by_val(w);
if (win_is_solid(ps, w)) {
region_t reg_noframe;
pixman_region32_init(&reg_noframe);
win_get_region_noframe_local(w, &reg_noframe);
pixman_region32_translate(&reg_noframe, w->g.x,
w->g.y);
pixman_region32_subtract(&reg_blur, &reg_blur,
&reg_noframe);
pixman_region32_fini(&reg_noframe);
}
bi->blur(ps->backend_data, ps,
(double)w->opacity / OPAQUE, &reg_blur);
pixman_region32_fini(&reg_blur);
}
// Draw window on target
bi->compose(ps->backend_data, ps, w, w->win_data, w->g.x, w->g.y,
&reg_tmp);
if (bi->finish_render_win)
bi->finish_render_win(ps->backend_data, ps, w, w->win_data);
}
}
// Free up all temporary regions
pixman_region32_fini(&reg_tmp);
if (bi->present) {
// Present the rendered scene
// Vsync is done here
bi->present(ps->backend_data, ps);
}
#ifdef DEBUG_REPAINT
print_timestamp(ps);
struct timespec now = get_time_timespec();
struct timespec diff = {0};
timespec_subtract(&diff, &now, &last_paint);
printf("[ %5ld:%09ld ] ", diff.tv_sec, diff.tv_nsec);
last_paint = now;
printf("paint:");
for (win *w = t; w; w = w->prev_trans)
printf(" %#010lx", w->id);
putchar('\n');
fflush(stdout);
#endif
// Check if fading is finished on all painted windows
win *pprev = NULL;
for (win *w = t; w; w = pprev) {
pprev = w->prev_trans;
win_check_fade_finished(ps, &w);
}
}
// vim: set noet sw=8 ts=8 :

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@ -1,6 +1,13 @@
#pragma once
#include <xcb/xcb_image.h>
#include "common.h"
#include <xcb/render.h>
#include <stdbool.h>
#include "region.h"
typedef struct session session_t;
typedef struct win win;
bool build_shadow(session_t *ps, double opacity, const int width, const int height,
xcb_render_picture_t shadow_pixel, xcb_pixmap_t *pixmap,
@ -8,3 +15,5 @@ bool build_shadow(session_t *ps, double opacity, const int width, const int heig
xcb_render_picture_t
solid_picture(session_t *ps, bool argb, double a, double r, double g, double b);
void paint_all_new(session_t *ps, region_t *region, win *const t);

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@ -1,5 +1,6 @@
#include <assert.h>
#include <math.h>
#include "common.h"
#include "backend/backend.h"
#include "backend_common.h"
#include "utils.h"

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@ -438,7 +438,7 @@ static void paint_root(session_t *ps, const region_t *reg_paint) {
ps->root_tile_paint.pict);
}
xcb_image_t *make_shadow(session_t *ps, double opacity, int width, int height) {
static xcb_image_t *make_shadow(session_t *ps, double opacity, int width, int height) {
xcb_image_t *ximage;
int ylimit, xlimit;
int swidth = width + ps->cgsize;

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@ -35,5 +35,3 @@ void free_root_tile(session_t *ps);
bool init_render(session_t *ps);
void deinit_render(session_t *ps);
xcb_image_t *make_shadow(session_t *ps, double opacity, int width, int height);