b903f7f655
Note that this segfaults ALL THE TIME in wlc code. Paging @Cloudef for help, I'm at a loss.
114 lines
3 KiB
C
114 lines
3 KiB
C
#include "render.h"
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#include <wlc/wlc-render.h>
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#include <cairo/cairo.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "container.h"
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void cairo_set_source_u32(cairo_t *cairo, uint32_t color) {
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cairo_set_source_rgba(cairo,
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(color >> (3*8) & 0xFF) / 255.0,
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(color >> (2*8) & 0xFF) / 255.0,
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(color >> (1*8) & 0xFF) / 255.0,
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(color >> (0*8) & 0xFF) / 255.0);
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}
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cairo_t *create_border_buffer(swayc_t *view, struct wlc_geometry geo,
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cairo_surface_t **surface) {
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const int channels = 4;
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cairo_t *cr;
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view->border_geometry = geo;
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view->border = calloc(channels * geo.size.w * geo.size.h,
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sizeof(unsigned char));
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if (!view->border) {
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sway_log(L_DEBUG, "Unable to allocate buffer");
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return NULL;
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}
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*surface = cairo_image_surface_create_for_data(view->border,
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CAIRO_FORMAT_ARGB32, geo.size.w, geo.size.h, channels * geo.size.w);
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if (cairo_surface_status(*surface) != CAIRO_STATUS_SUCCESS) {
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free(view->border);
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view->border = NULL;
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sway_log(L_DEBUG, "Unable to allocate surface");
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return NULL;
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}
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cr = cairo_create(*surface);
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if (cairo_status(cr) != CAIRO_STATUS_SUCCESS) {
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cairo_surface_destroy(*surface);
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free(view->border);
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view->border = NULL;
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sway_log(L_DEBUG, "Unable to create cairo context");
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return NULL;
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}
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return cr;
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}
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void update_view_border(swayc_t *view) {
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struct wlc_geometry geo;
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wlc_view_get_visible_geometry(view->handle, &geo);
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cairo_t *cr = NULL;
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cairo_surface_t *surface = NULL;
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if (view->border) {
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free(view->border);
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view->border = NULL;
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}
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switch (view->border_type) {
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case B_NONE:
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view->border_geometry = geo;
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break;
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case B_PIXEL:
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geo.origin.x -= view->border_thickness;
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geo.origin.y -= view->border_thickness;
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geo.size.w += view->border_thickness * 2;
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geo.size.h += view->border_thickness * 2;
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if (geo.size.w <= 0 || geo.size.h <= 0) {
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view->border = NULL;
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break;
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}
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cr = create_border_buffer(view, geo, &surface);
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if (!cr) {
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break;
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}
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cairo_set_source_u32(cr, 0x0000FFFF);
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cairo_paint(cr);
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break;
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case B_NORMAL:
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// TODO
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break;
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}
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if (surface) {
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cairo_surface_flush(surface);
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cairo_surface_destroy(surface);
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}
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if (cr) {
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cairo_destroy(cr);
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sway_log(L_DEBUG, "Created border for %p (%dx%d+%d,%d)", view,
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geo.size.w, geo.size.h, geo.origin.x, geo.origin.y);
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}
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view->border_geometry = geo;
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}
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void render_view_borders(wlc_handle view) {
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swayc_t *c = swayc_by_handle(view);
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if (!c || c->border_type == B_NONE) {
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return;
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}
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struct wlc_geometry geo;
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wlc_view_get_visible_geometry(view, &geo);
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if (geo.size.w != c->presumed_geometry.size.w
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|| geo.size.h != c->presumed_geometry.size.h
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|| geo.origin.x != c->presumed_geometry.origin.x
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|| geo.origin.y != c->presumed_geometry.origin.y) {
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update_view_border(c);
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c->presumed_geometry = geo;
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}
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if (c->border) {
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geo = c->border_geometry;
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sway_log(L_DEBUG, "Rendering border for %p (%dx%d+%d,%d)", c,
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geo.size.w, geo.size.h, geo.origin.x, geo.origin.y);
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wlc_pixels_write(WLC_RGBA8888, &c->border_geometry, c->border);
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}
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}
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