f53df7da64
Code submissions have continually suffered from formatting inconsistencies that constantly have to be addressed. Using clang-format simplifies this by making code formatting more consistent, and allows automation of the code formatting so that maintainers can focus more on the code itself instead of code formatting.
118 lines
3.1 KiB
C
118 lines
3.1 KiB
C
/*
|
|
Copyright (C) 2014 by Leonhard Oelke <leonhard@in-verted.de>
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <xcb/xfixes.h>
|
|
|
|
#include <util/bmem.h>
|
|
#include "xcursor-xcb.h"
|
|
|
|
/*
|
|
* Create the cursor texture, either by updating if the new cursor has the same
|
|
* size or by creating a new texture if the size is different
|
|
*/
|
|
static void xcb_xcursor_create(xcb_xcursor_t *data,
|
|
xcb_xfixes_get_cursor_image_reply_t *xc)
|
|
{
|
|
uint32_t *pixels = xcb_xfixes_get_cursor_image_cursor_image(xc);
|
|
if (!pixels)
|
|
return;
|
|
|
|
if (data->tex && data->last_height == xc->width &&
|
|
data->last_width == xc->height) {
|
|
gs_texture_set_image(data->tex, (const uint8_t *)pixels,
|
|
xc->width * sizeof(uint32_t), false);
|
|
} else {
|
|
if (data->tex)
|
|
gs_texture_destroy(data->tex);
|
|
|
|
data->tex = gs_texture_create(xc->width, xc->height, GS_BGRA, 1,
|
|
(const uint8_t **)&pixels,
|
|
GS_DYNAMIC);
|
|
}
|
|
|
|
data->last_serial = xc->cursor_serial;
|
|
data->last_width = xc->width;
|
|
data->last_height = xc->height;
|
|
}
|
|
|
|
/**
|
|
* We need to check for the xfixes version in order to initialize it ?
|
|
*/
|
|
xcb_xcursor_t *xcb_xcursor_init(xcb_connection_t *xcb)
|
|
{
|
|
xcb_xcursor_t *data = bzalloc(sizeof(xcb_xcursor_t));
|
|
|
|
xcb_xfixes_query_version_cookie_t xfix_c;
|
|
|
|
xfix_c = xcb_xfixes_query_version_unchecked(
|
|
xcb, XCB_XFIXES_MAJOR_VERSION, XCB_XFIXES_MINOR_VERSION);
|
|
free(xcb_xfixes_query_version_reply(xcb, xfix_c, NULL));
|
|
|
|
return data;
|
|
}
|
|
|
|
void xcb_xcursor_destroy(xcb_xcursor_t *data)
|
|
{
|
|
if (data->tex)
|
|
gs_texture_destroy(data->tex);
|
|
bfree(data);
|
|
}
|
|
|
|
void xcb_xcursor_update(xcb_xcursor_t *data,
|
|
xcb_xfixes_get_cursor_image_reply_t *xc)
|
|
{
|
|
if (!data || !xc)
|
|
return;
|
|
|
|
if (!data->tex || data->last_serial != xc->cursor_serial)
|
|
xcb_xcursor_create(data, xc);
|
|
|
|
data->x = xc->x - data->x_org;
|
|
data->y = xc->y - data->y_org;
|
|
data->x_render = data->x - xc->xhot;
|
|
data->y_render = data->y - xc->yhot;
|
|
}
|
|
|
|
void xcb_xcursor_render(xcb_xcursor_t *data)
|
|
{
|
|
if (!data->tex)
|
|
return;
|
|
|
|
gs_effect_t *effect = gs_get_effect();
|
|
gs_eparam_t *image = gs_effect_get_param_by_name(effect, "image");
|
|
gs_effect_set_texture(image, data->tex);
|
|
|
|
gs_blend_state_push();
|
|
gs_blend_function(GS_BLEND_SRCALPHA, GS_BLEND_INVSRCALPHA);
|
|
gs_enable_color(true, true, true, false);
|
|
|
|
gs_matrix_push();
|
|
gs_matrix_translate3f(data->x_render, data->y_render, 0.0f);
|
|
gs_draw_sprite(data->tex, 0, 0, 0);
|
|
gs_matrix_pop();
|
|
|
|
gs_enable_color(true, true, true, true);
|
|
gs_blend_state_pop();
|
|
}
|
|
|
|
void xcb_xcursor_offset(xcb_xcursor_t *data, const int x_org, const int y_org)
|
|
{
|
|
data->x_org = x_org;
|
|
data->y_org = y_org;
|
|
}
|