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Load xwm cursor from theme

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This commit is contained in:
emersion 2017-11-02 15:52:02 +01:00
parent 4254c28138
commit ddd7b7711c
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3 changed files with 68 additions and 25 deletions
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1
meson.build
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@ -53,6 +53,7 @@ xcb = dependency('xcb')
xcb_composite = dependency('xcb-composite')
xcb_xfixes = dependency('xcb-xfixes')
xcb_image = dependency('xcb-image')
xcb_render = dependency('xcb-render')
xcb_icccm = dependency('xcb-icccm', required: false)
x11_xcb = dependency('x11-xcb')
libcap = dependency('libcap', required: false)

1
xwayland/meson.build
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@ -12,6 +12,7 @@ lib_wlr_xwayland = static_library(
xcb_composite,
xcb_xfixes,
xcb_image,
xcb_render,
xcb_icccm,
pixman,
],

91
xwayland/xwm.c
View File

@ -6,9 +6,11 @@
#include <xcb/composite.h>
#include <xcb/xfixes.h>
#include <xcb/xcb_image.h>
#include <xcb/render.h>
#include "wlr/util/log.h"
#include "wlr/types/wlr_surface.h"
#include "wlr/xwayland.h"
#include "wlr/xcursor.h"
#include "xwm.h"
#ifdef HAS_XCB_ICCCM
@ -1186,6 +1188,60 @@ static void xwm_get_visual_and_colormap(struct wlr_xwm *xwm) {
xwm->visual_id);
}
void xwm_set_cursor(struct wlr_xwm *xwm, const uint8_t *pixels, uint32_t stride,
uint32_t width, uint32_t height, int32_t hotspot_x, int32_t hotspot_y) {
if (xwm->cursor) {
xcb_free_cursor(xwm->xcb_conn, xwm->cursor);
}
int depth = 32;
xcb_pixmap_t pix = xcb_generate_id(xwm->xcb_conn);
xcb_create_pixmap(xwm->xcb_conn, depth, pix, xwm->screen->root, width,
height);
xcb_render_query_pict_formats_cookie_t cookie =
xcb_render_query_pict_formats(xwm->xcb_conn);
xcb_generic_error_t *err = NULL;
xcb_render_query_pict_formats_reply_t *reply =
xcb_render_query_pict_formats_reply(xwm->xcb_conn, cookie, &err);
xcb_render_pictforminfo_t *formats =
xcb_render_query_pict_formats_formats(reply);
int len = xcb_render_query_pict_formats_formats_length(reply);
xcb_render_pictforminfo_t *format = NULL;
for (int i = 0; i < len; ++i) {
if (formats[i].depth == depth) {
format = &formats[i];
break;
}
// TODO: segfaults when not found
}
if (format == NULL) {
wlr_log(L_ERROR, "Cannot find %d-bit depth render format", depth);
return;
}
xcb_render_picture_t pic = xcb_generate_id(xwm->xcb_conn);
xcb_render_create_picture(xwm->xcb_conn, pic, pix, format->id, 0, 0);
xcb_gcontext_t gc = xcb_generate_id(xwm->xcb_conn);
xcb_create_gc(xwm->xcb_conn, gc, pix, 0, NULL);
xcb_put_image(xwm->xcb_conn, XCB_IMAGE_FORMAT_Z_PIXMAP, pix, gc,
width, height, 0, 0, 0, depth, stride * height * sizeof(uint8_t),
pixels);
xcb_free_gc(xwm->xcb_conn, gc);
xwm->cursor = xcb_generate_id(xwm->xcb_conn);
xcb_render_create_cursor(xwm->xcb_conn, xwm->cursor, pic, hotspot_x,
hotspot_y);
xcb_free_pixmap(xwm->xcb_conn, pix);
uint32_t values[] = {xwm->cursor};
xcb_change_window_attributes(xwm->xcb_conn, xwm->screen->root,
XCB_CW_CURSOR, values);
}
struct wlr_xwm *xwm_create(struct wlr_xwayland *wlr_xwayland) {
struct wlr_xwm *xwm = calloc(1, sizeof(struct wlr_xwm));
if (xwm == NULL) {
@ -1223,39 +1279,24 @@ struct wlr_xwm *xwm_create(struct wlr_xwayland *wlr_xwayland) {
xwm_get_resources(xwm);
xwm_get_visual_and_colormap(xwm);
xwm->cursor = xcb_generate_id(xwm->xcb_conn);
{
// Create root cursor
uint8_t data[] = {
0x00, 0x00, 0xfe, 0x07, 0xfe, 0x03, 0xfe, 0x01, 0xfe, 0x01, 0xfe, 0x03,
0xfe, 0x07, 0xfe, 0x0f, 0xfe, 0x1f, 0xe6, 0x0f, 0xc2, 0x07, 0x80, 0x03,
0x00, 0x01, 0x00, 0x00
};
uint8_t mask[] = {
0xff, 0x3f, 0xff, 0x1f, 0xff, 0x07, 0xff, 0x03, 0xff, 0x03, 0xff, 0x07,
0xff, 0x0f, 0xff, 0x1f, 0xff, 0x3f, 0xff, 0x1f, 0xe7, 0x0f, 0xc3, 0x07,
0x83, 0x03, 0x01, 0x01
};
xcb_pixmap_t cp = xcb_create_pixmap_from_bitmap_data(xwm->xcb_conn, xwm->screen->root, data, 14, 14, 1, 0, 0, 0);
xcb_pixmap_t mp = xcb_create_pixmap_from_bitmap_data(xwm->xcb_conn, xwm->screen->root, mask, 14, 14, 1, 0, 0, 0);
xcb_create_cursor(xwm->xcb_conn, xwm->cursor, cp, mp, 0, 0, 0, 0xFFFF, 0xFFFF, 0xFFFF, 0, 0);
xcb_free_pixmap(xwm->xcb_conn, cp);
xcb_free_pixmap(xwm->xcb_conn, mp);
}
// TODO
struct wlr_xcursor_theme *xcursor_theme =
wlr_xcursor_theme_load("default", 16);
struct wlr_xcursor *xcursor =
wlr_xcursor_theme_get_cursor(xcursor_theme, "left_ptr");
struct wlr_xcursor_image *xcursor_image = xcursor->images[0];
xwm_set_cursor(xwm, xcursor_image->buffer, 4 * xcursor_image->width,
xcursor_image->width, xcursor_image->height, xcursor_image->hotspot_x,
xcursor_image->hotspot_y);
uint32_t values[] = {
XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY |
XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
XCB_EVENT_MASK_PROPERTY_CHANGE,
xwm->cursor,
};
xcb_change_window_attributes(xwm->xcb_conn,
xwm->screen->root,
XCB_CW_EVENT_MASK | XCB_CW_CURSOR,
XCB_CW_EVENT_MASK,
values);
xcb_composite_redirect_subwindows(xwm->xcb_conn,