1 files changed, 93 insertions, 45 deletions

diff --git a/rootston/output.c b/rootston/output.c
index 1b2a17d8..2283ad16 100644
--- a/rootston/output.c
+++ b/rootston/output.c
@@ -174,7 +174,6 @@ static void render_surface(struct wlr_surface *surface, double lx, double ly,
 	struct render_data *data = _data;
 	struct roots_output *output = data->output;
 	struct timespec *when = data->when;
-	pixman_region32_t *damage = data->damage;
 
 	if (!wlr_surface_has_buffer(surface)) {
 		return;
@@ -188,63 +187,95 @@ static void render_surface(struct wlr_surface *surface, double lx, double ly,
 	}
 
 	// TODO: output scale, output transform support
-	pixman_region32_t surface_damage;
-	pixman_region32_init(&surface_damage);
-	pixman_region32_union_rect(&surface_damage, &surface_damage, box.x, box.y,
+	pixman_region32_t damage;
+	pixman_region32_init(&damage);
+	pixman_region32_union_rect(&damage, &damage, box.x, box.y,
 		box.width, box.height);
-	pixman_region32_intersect(&surface_damage, &surface_damage, damage);
-	bool damaged = pixman_region32_not_empty(&surface_damage);
+	pixman_region32_intersect(&damage, &damage, data->damage);
+	bool damaged = pixman_region32_not_empty(&damage);
 	if (!damaged) {
-		goto surface_damage_finish;
+		goto damage_finish;
 	}
 
-	float transform[16];
-	wlr_matrix_translate(&transform, box.x, box.y, 0);
-
-	if (rotation != 0) {
-		float translate_center[16];
-		wlr_matrix_translate(&translate_center, box.width/2, box.height/2, 0);
+	float matrix[16];
+	enum wl_output_transform transform =
+		wlr_output_transform_invert(surface->current->transform);
+	wlr_matrix_project_box(&matrix, &box, transform, rotation,
+		&output->wlr_output->transform_matrix);
 
-		float rotate[16];
-		wlr_matrix_rotate(&rotate, rotation);
+	int nrects;
+	pixman_box32_t *rects =
+		pixman_region32_rectangles(&damage, &nrects);
+	for (int i = 0; i < nrects; ++i) {
+		struct wlr_box scissor = {
+			.x = rects[i].x1,
+			.y = output->wlr_output->height - rects[i].y2,
+			.width = rects[i].x2 - rects[i].x1,
+			.height = rects[i].y2 - rects[i].y1,
+		};
+		wlr_renderer_scissor(output->desktop->server->renderer, &scissor);
+		wlr_render_with_matrix(output->desktop->server->renderer,
+			surface->texture, &matrix);
+	}
 
-		float translate_origin[16];
-		wlr_matrix_translate(&translate_origin, -box.width/2, -box.height/2, 0);
+	wlr_surface_send_frame_done(surface, when);
 
-		wlr_matrix_mul(&transform, &translate_center, &transform);
-		wlr_matrix_mul(&transform, &rotate, &transform);
-		wlr_matrix_mul(&transform, &translate_origin, &transform);
-	}
+damage_finish:
+	pixman_region32_fini(&damage);
+}
 
-	float scale[16];
-	wlr_matrix_scale(&scale, box.width, box.height, 1);
+static void get_decoration_box(struct roots_view *view,
+		struct roots_output *output, struct wlr_box *box) {
+	struct wlr_output *wlr_output = output->wlr_output;
 
-	wlr_matrix_mul(&transform, &scale, &transform);
+	struct wlr_box deco_box;
+	view_get_deco_box(view, &deco_box);
+	double sx = deco_box.x - view->x;
+	double sy = deco_box.y - view->y;
+	rotate_child_position(&sx, &sy, deco_box.width, deco_box.height,
+		view->wlr_surface->current->width,
+		view->wlr_surface->current->height, view->rotation);
+	double x = sx + view->x;
+	double y = sy + view->y;
+
+	wlr_output_layout_output_coords(output->desktop->layout, wlr_output, &x, &y);
+
+	box->x = x * wlr_output->scale;
+	box->y = y * wlr_output->scale;
+	box->width = deco_box.width * wlr_output->scale;
+	box->height = deco_box.height * wlr_output->scale;
+}
 
-	if (surface->current->transform != WL_OUTPUT_TRANSFORM_NORMAL) {
-		float surface_translate_center[16];
-		wlr_matrix_translate(&surface_translate_center, 0.5, 0.5, 0);
+static void render_decorations(struct roots_view *view,
+		struct render_data *data) {
+	if (!view->decorated || view->wlr_surface == NULL) {
+		return;
+	}
 
-		float surface_transform[16];
-		wlr_matrix_transform(surface_transform,
-			wlr_output_transform_invert(surface->current->transform));
+	struct roots_output *output = data->output;
 
-		float surface_translate_origin[16];
-		wlr_matrix_translate(&surface_translate_origin, -0.5, -0.5, 0);
+	struct wlr_box box;
+	get_decoration_box(view, output, &box);
 
-		wlr_matrix_mul(&transform, &surface_translate_center,
-			&transform);
-		wlr_matrix_mul(&transform, &surface_transform, &transform);
-		wlr_matrix_mul(&transform, &surface_translate_origin,
-			&transform);
+	// TODO: output scale, output transform support
+	pixman_region32_t damage;
+	pixman_region32_init(&damage);
+	pixman_region32_union_rect(&damage, &damage, box.x, box.y,
+		box.width, box.height);
+	pixman_region32_intersect(&damage, &damage, data->damage);
+	bool damaged = pixman_region32_not_empty(&damage);
+	if (!damaged) {
+		goto damage_finish;
 	}
 
 	float matrix[16];
-	wlr_matrix_mul(&output->wlr_output->transform_matrix, &transform, &matrix);
+	wlr_matrix_project_box(&matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL,
+		view->rotation, &output->wlr_output->transform_matrix);
+	float color[] = { 0.2, 0.2, 0.2, 1 };
 
 	int nrects;
 	pixman_box32_t *rects =
-		pixman_region32_rectangles(&surface_damage, &nrects);
+		pixman_region32_rectangles(&damage, &nrects);
 	for (int i = 0; i < nrects; ++i) {
 		struct wlr_box scissor = {
 			.x = rects[i].x1,
@@ -253,14 +284,17 @@ static void render_surface(struct wlr_surface *surface, double lx, double ly,
 			.height = rects[i].y2 - rects[i].y1,
 		};
 		wlr_renderer_scissor(output->desktop->server->renderer, &scissor);
-		wlr_render_with_matrix(output->desktop->server->renderer,
-			surface->texture, &matrix);
+		wlr_render_colored_quad(output->desktop->server->renderer, &color,
+			&matrix);
 	}
 
-	wlr_surface_send_frame_done(surface, when);
+damage_finish:
+	pixman_region32_fini(&damage);
+}
 
-surface_damage_finish:
-	pixman_region32_fini(&surface_damage);
+static void render_view(struct roots_view *view, struct render_data *data) {
+	render_decorations(view, data);
+	view_for_each_surface(view, render_surface, data);
 }
 
 static bool has_standalone_surface(struct roots_view *view) {
@@ -402,7 +436,7 @@ static void render_output(struct roots_output *output) {
 	// Render all views
 	struct roots_view *view;
 	wl_list_for_each_reverse(view, &desktop->views, link) {
-		view_for_each_surface(view, render_surface, &data);
+		render_view(view, &data);
 	}
 
 	// Render drag icons
@@ -505,12 +539,26 @@ static void damage_whole_surface(struct wlr_surface *surface,
 	schedule_render(output);
 }
 
+static void damage_whole_decoration(struct roots_view *view,
+		struct roots_output *output) {
+	if (!view->decorated || view->wlr_surface == NULL) {
+		return;
+	}
+
+	struct wlr_box box;
+	get_decoration_box(view, output, &box);
+
+	pixman_region32_union_rect(&output->damage, &output->damage,
+		box.x, box.y, box.width, box.height);
+}
+
 void output_damage_whole_view(struct roots_output *output,
 		struct roots_view *view) {
 	if (!view_accept_damage(output, view)) {
 		return;
 	}
 
+	damage_whole_decoration(view, output);
 	view_for_each_surface(view, damage_whole_surface, output);
 }