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Merge pull request #198 from emersion/rootston-move-resize-rotate

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rootston: force move, resize and rotate
This commit is contained in:
Drew DeVault 2017-10-05 13:12:29 -04:00 • committed by GitHub
commit d74a6d254f
7 changed files with 167 additions and 41 deletions
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38
rootston/output.c
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@ -18,7 +18,7 @@ static inline int64_t timespec_to_msec(const struct timespec *a) {
static void render_surface(struct wlr_surface *surface,
struct roots_desktop *desktop, struct wlr_output *wlr_output,
struct timespec *when, double lx, double ly) {
struct timespec *when, double lx, double ly, float rotation) {
wlr_surface_flush_damage(surface);
if (surface->texture->valid) {
int width = surface->current->buffer_width;
@ -27,10 +27,20 @@ static void render_surface(struct wlr_surface *surface,
wlr_output_layout_output_coords(desktop->layout, wlr_output, &ox, &oy);
if (wlr_output_layout_intersects(desktop->layout, wlr_output,
lx, ly, lx + width, ly + height)) {
lx, ly, lx + width, ly + height)) {
float matrix[16];
float translate_origin[16];
wlr_matrix_translate(&translate_origin,
ox + width/2, oy + height/2, 0);
float rotate[16];
wlr_matrix_rotate(&rotate, rotation);
float translate_center[16];
wlr_matrix_translate(&translate_center, -width/2, -height/2, 0);
float transform[16];
wlr_matrix_translate(&transform, ox, oy, 0);
wlr_matrix_mul(&translate_origin, &rotate, &transform);
wlr_matrix_mul(&transform, &translate_center, &transform);
wlr_surface_get_matrix(surface, &matrix,
&wlr_output->transform_matrix, &transform);
wlr_render_with_matrix(desktop->server->renderer,
@ -46,9 +56,25 @@ static void render_surface(struct wlr_surface *surface,
struct wlr_subsurface *subsurface;
wl_list_for_each(subsurface, &surface->subsurface_list, parent_link) {
double sx = subsurface->surface->current->subsurface_position.x,
sy = subsurface->surface->current->subsurface_position.y;
double sw = subsurface->surface->current->buffer_width,
sh = subsurface->surface->current->buffer_height;
if (rotation != 0.0) {
// Coordinates relative to the center of the subsurface
double ox = sx - (double)width/2 + sw/2,
oy = sy - (double)height/2 + sh/2;
// Rotated coordinates
double rx = cos(-rotation)*ox - sin(-rotation)*oy,
ry = cos(-rotation)*oy + sin(-rotation)*ox;
sx = rx + (double)width/2 - sw/2;
sy = ry + (double)height/2 - sh/2;
}
render_surface(subsurface->surface, desktop, wlr_output, when,
lx + subsurface->surface->current->subsurface_position.x,
ly + subsurface->surface->current->subsurface_position.y);
lx + sx,
ly + sy,
rotation);
}
}
}
@ -56,7 +82,7 @@ static void render_surface(struct wlr_surface *surface,
static void render_view(struct roots_view *view, struct roots_desktop *desktop,
struct wlr_output *wlr_output, struct timespec *when) {
render_surface(view->wlr_surface, desktop, wlr_output, when,
view->x, view->y);
view->x, view->y, view->rotation);
}
static void output_frame_notify(struct wl_listener *listener, void *data) {