common: Drop unused render_background_image

And the associated background_mode enum.

common/background-image.c

@@ -1,29 +1,12 @@
 #include <assert.h>
 #include "background-image.h"
-#include "cairo_util.h"
+#include "config.h"
 #include "log.h"
+
 #if HAVE_GDK_PIXBUF
 #include <gdk-pixbuf/gdk-pixbuf.h>
 #endif
 
-enum background_mode parse_background_mode(const char *mode) {
-	if (strcmp(mode, "stretch") == 0) {
-		return BACKGROUND_MODE_STRETCH;
-	} else if (strcmp(mode, "fill") == 0) {
-		return BACKGROUND_MODE_FILL;
-	} else if (strcmp(mode, "fit") == 0) {
-		return BACKGROUND_MODE_FIT;
-	} else if (strcmp(mode, "center") == 0) {
-		return BACKGROUND_MODE_CENTER;
-	} else if (strcmp(mode, "tile") == 0) {
-		return BACKGROUND_MODE_TILE;
-	} else if (strcmp(mode, "solid_color") == 0) {
-		return BACKGROUND_MODE_SOLID_COLOR;
-	}
-	sway_log(SWAY_ERROR, "Unsupported background mode: %s", mode);
-	return BACKGROUND_MODE_INVALID;
-}
-
 #if HAVE_GDK_PIXBUF
 static cairo_surface_t* gdk_cairo_image_surface_create_from_pixbuf(
 		const GdkPixbuf *gdkbuf) {
@@ -151,70 +134,3 @@ cairo_surface_t *load_background_image(const char *path) {
 	}
 	return image;
 }
-
-void render_background_image(cairo_t *cairo, cairo_surface_t *image,
-		enum background_mode mode, int buffer_width, int buffer_height) {
-	double width = cairo_image_surface_get_width(image);
-	double height = cairo_image_surface_get_height(image);
-
-	cairo_save(cairo);
-	switch (mode) {
-	case BACKGROUND_MODE_STRETCH:
-		cairo_scale(cairo,
-				(double)buffer_width / width,
-				(double)buffer_height / height);
-		cairo_set_source_surface(cairo, image, 0, 0);
-		break;
-	case BACKGROUND_MODE_FILL: {
-		double window_ratio = (double)buffer_width / buffer_height;
-		double bg_ratio = width / height;
-
-		if (window_ratio > bg_ratio) {
-			double scale = (double)buffer_width / width;
-			cairo_scale(cairo, scale, scale);
-			cairo_set_source_surface(cairo, image,
-					0, (double)buffer_height / 2 / scale - height / 2);
-		} else {
-			double scale = (double)buffer_height / height;
-			cairo_scale(cairo, scale, scale);
-			cairo_set_source_surface(cairo, image,
-					(double)buffer_width / 2 / scale - width / 2, 0);
-		}
-		break;
-	}
-	case BACKGROUND_MODE_FIT: {
-		double window_ratio = (double)buffer_width / buffer_height;
-		double bg_ratio = width / height;
-
-		if (window_ratio > bg_ratio) {
-			double scale = (double)buffer_height / height;
-			cairo_scale(cairo, scale, scale);
-			cairo_set_source_surface(cairo, image,
-					(double)buffer_width / 2 / scale - width / 2, 0);
-		} else {
-			double scale = (double)buffer_width / width;
-			cairo_scale(cairo, scale, scale);
-			cairo_set_source_surface(cairo, image,
-					0, (double)buffer_height / 2 / scale - height / 2);
-		}
-		break;
-	}
-	case BACKGROUND_MODE_CENTER:
-		cairo_set_source_surface(cairo, image,
-				(double)buffer_width / 2 - width / 2,
-				(double)buffer_height / 2 - height / 2);
-		break;
-	case BACKGROUND_MODE_TILE: {
-		cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image);
-		cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
-		cairo_set_source(cairo, pattern);
-		break;
-	}
-	case BACKGROUND_MODE_SOLID_COLOR:
-	case BACKGROUND_MODE_INVALID:
-		assert(0);
-		break;
-	}
-	cairo_paint(cairo);
-	cairo_restore(cairo);
-}

include/background-image.h

@@ -1,20 +1,7 @@
 #ifndef _SWAY_BACKGROUND_IMAGE_H
 #define _SWAY_BACKGROUND_IMAGE_H
-#include "cairo_util.h"
+#include <cairo.h>
 
-enum background_mode {
-	BACKGROUND_MODE_STRETCH,
-	BACKGROUND_MODE_FILL,
-	BACKGROUND_MODE_FIT,
-	BACKGROUND_MODE_CENTER,
-	BACKGROUND_MODE_TILE,
-	BACKGROUND_MODE_SOLID_COLOR,
-	BACKGROUND_MODE_INVALID,
-};
-
-enum background_mode parse_background_mode(const char *mode);
 cairo_surface_t *load_background_image(const char *path);
-void render_background_image(cairo_t *cairo, cairo_surface_t *image,
-		enum background_mode mode, int buffer_width, int buffer_height);
 
 #endif