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	Merge pull request #488 from emersion/fractional-scaling
Add fractional scaling support
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						commit
						a6704fd16d
					
				
					 10 changed files with 27 additions and 23 deletions
				
			
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			@ -59,14 +59,15 @@ static void pointer_handle_motion(void *data, struct wl_pointer *wl_pointer,
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		&box.width, &box.height);
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	box.x = wl_fixed_to_int(surface_x);
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	box.y = wl_fixed_to_int(surface_y);
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	struct wlr_box transformed;
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	struct wlr_box transformed;
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	wlr_box_transform(&box, wlr_output->transform, &transformed);
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	box.x /= wlr_output->scale;
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	box.y /= wlr_output->scale;
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	transformed.x /= wlr_output->scale;
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	transformed.y /= wlr_output->scale;
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	struct wlr_box layout_box;
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	wlr_wl_output_layout_get_box(wlr_wl_pointer->current_output->backend, &layout_box);
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	wlr_wl_output_layout_get_box(wlr_wl_pointer->current_output->backend,
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		&layout_box);
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	struct wlr_event_pointer_motion_absolute wlr_event;
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	wlr_event.device = dev;
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			@ -9,7 +9,7 @@ struct roots_output_config {
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	char *name;
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	enum wl_output_transform transform;
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	int x, y;
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	int scale;
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	float scale;
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	struct wl_list link;
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	struct {
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		int width, height;
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			@ -68,7 +68,7 @@ void wlr_cursor_move(struct wlr_cursor *cur, struct wlr_input_device *dev,
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 */
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void wlr_cursor_set_image(struct wlr_cursor *cur, const uint8_t *pixels,
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	int32_t stride, uint32_t width, uint32_t height, int32_t hotspot_x,
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	int32_t hotspot_y, uint32_t scale);
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	int32_t hotspot_y, float scale);
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/**
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 * Set the cursor surface. The surface can be committed to update the cursor
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			@ -45,7 +45,7 @@ struct wlr_output {
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	char make[48];
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	char model[16];
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	char serial[16];
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	uint32_t scale;
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	float scale;
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	int32_t width, height;
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	int32_t phys_width, phys_height; // mm
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	enum wl_output_subpixel subpixel;
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			@ -92,7 +92,7 @@ bool wlr_output_set_custom_mode(struct wlr_output *output, int32_t width,
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void wlr_output_set_transform(struct wlr_output *output,
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	enum wl_output_transform transform);
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void wlr_output_set_position(struct wlr_output *output, int32_t lx, int32_t ly);
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void wlr_output_set_scale(struct wlr_output *output, uint32_t scale);
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void wlr_output_set_scale(struct wlr_output *output, float scale);
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void wlr_output_destroy(struct wlr_output *output);
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void wlr_output_effective_resolution(struct wlr_output *output,
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	int *width, int *height);
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			@ -9,7 +9,7 @@
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 * A scaled XCursor theme.
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 */
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struct wlr_xcursor_manager_theme {
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	uint32_t scale;
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	float scale;
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	struct wlr_xcursor_theme *theme;
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	struct wl_list link;
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};
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			@ -38,10 +38,10 @@ struct wlr_xcursor_manager *wlr_xcursor_manager_create(const char *name,
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void wlr_xcursor_manager_destroy(struct wlr_xcursor_manager *manager);
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int wlr_xcursor_manager_load(struct wlr_xcursor_manager *manager,
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	uint32_t scale);
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	float scale);
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struct wlr_xcursor *wlr_xcursor_manager_get_xcursor(
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	struct wlr_xcursor_manager *manager, const char *name, uint32_t scale);
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	struct wlr_xcursor_manager *manager, const char *name, float scale);
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/**
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 * Set a `wlr_cursor` image. The manager uses all currently loaded scaled
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			@ -270,7 +270,7 @@ static int config_ini_handler(void *user, const char *section, const char *name,
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		} else if (strcmp(name, "y") == 0) {
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			oc->y = strtol(value, NULL, 10);
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		} else if (strcmp(name, "scale") == 0) {
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			oc->scale = strtol(value, NULL, 10);
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			oc->scale = strtof(value, NULL);
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			assert(oc->scale >= 1);
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		} else if (strcmp(name, "rotate") == 0) {
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			if (strcmp(value, "normal") == 0) {
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			@ -459,11 +459,10 @@ void roots_seat_configure_xcursor(struct roots_seat *seat) {
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	struct roots_output *output;
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	wl_list_for_each(output, &seat->input->server->desktop->outputs, link) {
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		if (wlr_xcursor_manager_load(seat->cursor->xcursor_manager,
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				output->wlr_output->scale)) {
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		float scale = output->wlr_output->scale;
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		if (wlr_xcursor_manager_load(seat->cursor->xcursor_manager, scale)) {
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			wlr_log(L_ERROR, "Cannot load xcursor theme for output '%s' "
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				"with scale %d", output->wlr_output->name,
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				output->wlr_output->scale);
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				"with scale %f", output->wlr_output->name, scale);
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		}
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	}
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			@ -299,11 +299,11 @@ void wlr_cursor_move(struct wlr_cursor *cur, struct wlr_input_device *dev,
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void wlr_cursor_set_image(struct wlr_cursor *cur, const uint8_t *pixels,
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		int32_t stride, uint32_t width, uint32_t height, int32_t hotspot_x,
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		int32_t hotspot_y, uint32_t scale) {
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		int32_t hotspot_y, float scale) {
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	struct wlr_cursor_output_cursor *output_cursor;
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	wl_list_for_each(output_cursor, &cur->state->output_cursors, link) {
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		if (scale != 0 &&
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				output_cursor->output_cursor->output->scale != scale) {
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		float output_scale = output_cursor->output_cursor->output->scale;
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		if (scale > 0 && output_scale != scale) {
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			continue;
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		}
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			@ -43,7 +43,7 @@ static void wl_output_send_to_resource(struct wl_resource *resource) {
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		}
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	}
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	if (version >= WL_OUTPUT_SCALE_SINCE_VERSION) {
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		wl_output_send_scale(resource, output->scale);
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		wl_output_send_scale(resource, (uint32_t)ceil(output->scale));
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	}
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	if (version >= WL_OUTPUT_DONE_SINCE_VERSION) {
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		wl_output_send_done(resource);
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			@ -240,7 +240,7 @@ void wlr_output_set_position(struct wlr_output *output, int32_t lx,
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	}
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}
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void wlr_output_set_scale(struct wlr_output *output, uint32_t scale) {
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void wlr_output_set_scale(struct wlr_output *output, float scale) {
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	if (output->scale == scale) {
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		return;
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	}
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			@ -256,6 +256,10 @@ void wlr_output_set_scale(struct wlr_output *output, uint32_t scale) {
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	wl_signal_emit(&output->events.scale, output);
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}
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uint32_t wlr_output_integral_scale(struct wlr_output *output) {
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	return ceil(output->scale);
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}
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void wlr_output_init(struct wlr_output *output, struct wlr_backend *backend,
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		const struct wlr_output_impl *impl) {
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	assert(impl->make_current && impl->swap_buffers && impl->transform);
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			@ -33,7 +33,7 @@ void wlr_xcursor_manager_destroy(struct wlr_xcursor_manager *manager) {
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}
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int wlr_xcursor_manager_load(struct wlr_xcursor_manager *manager,
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		uint32_t scale) {
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		float scale) {
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	struct wlr_xcursor_manager_theme *theme;
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	wl_list_for_each(theme, &manager->scaled_themes, link) {
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		if (theme->scale == scale) {
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			@ -56,7 +56,7 @@ int wlr_xcursor_manager_load(struct wlr_xcursor_manager *manager,
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}
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struct wlr_xcursor *wlr_xcursor_manager_get_xcursor(
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		struct wlr_xcursor_manager *manager, const char *name, uint32_t scale) {
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		struct wlr_xcursor_manager *manager, const char *name, float scale) {
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	struct wlr_xcursor_manager_theme *theme;
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	wl_list_for_each(theme, &manager->scaled_themes, link) {
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		if (theme->scale == scale) {
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