Fixed broken files/code and other errors

1 files changed, 174 insertions, 0 deletions

diff --git a/src/backend/dummy/dummy.c b/src/backend/dummy/dummy.c
new file mode 100644
index 0000000..a057b97
--- /dev/null
+++ b/src/backend/dummy/dummy.c
@@ -0,0 +1,174 @@
+#include <uthash.h>
+#include <xcb/xcb.h>
+
+#include "backend/backend.h"
+#include "backend/backend_common.h"
+#include "common.h"
+#include "compiler.h"
+#include "config.h"
+#include "log.h"
+#include "region.h"
+#include "types.h"
+#include "uthash_extra.h"
+#include "utils.h"
+#include "x.h"
+
+struct dummy_image {
+	xcb_pixmap_t pixmap;
+	bool transparent;
+	int *refcount;
+	UT_hash_handle hh;
+};
+
+struct dummy_data {
+	struct backend_base base;
+	struct dummy_image *images;
+};
+
+struct backend_base *dummy_init(struct session *ps attr_unused) {
+	auto ret = (struct backend_base *)ccalloc(1, struct dummy_data);
+	ret->c = ps->c;
+	ret->loop = ps->loop;
+	ret->root = ps->root;
+	ret->busy = false;
+	return ret;
+}
+
+void dummy_deinit(struct backend_base *data) {
+	auto dummy = (struct dummy_data *)data;
+	HASH_ITER2(dummy->images, img) {
+		log_warn("Backend image for pixmap %#010x is not freed", img->pixmap);
+		HASH_DEL(dummy->images, img);
+		free(img->refcount);
+		free(img);
+	}
+	free(dummy);
+}
+
+static void dummy_check_image(struct backend_base *base, const struct dummy_image *img) {
+	auto dummy = (struct dummy_data *)base;
+	struct dummy_image *tmp = NULL;
+	HASH_FIND_INT(dummy->images, &img->pixmap, tmp);
+	if (!tmp) {
+		log_warn("Using an invalid (possibly freed) image");
+		assert(false);
+	}
+	assert(*tmp->refcount > 0);
+}
+
+void dummy_compose(struct backend_base *base, void *image, int dst_x1 attr_unused,
+                   int dst_y1 attr_unused, int dst_x2 attr_unused, int dst_y2 attr_unused,
+		   const region_t *reg_paint attr_unused, const region_t *reg_visible attr_unused) {
+	dummy_check_image(base, image);
+}
+
+void dummy_fill(struct backend_base *backend_data attr_unused, struct color c attr_unused,
+                const region_t *clip attr_unused) {
+}
+
+bool dummy_blur(struct backend_base *backend_data attr_unused, double opacity attr_unused,
+                void *blur_ctx attr_unused, const region_t *reg_blur attr_unused,
+                const region_t *reg_visible attr_unused) {
+	return true;
+}
+
+void *dummy_bind_pixmap(struct backend_base *base, xcb_pixmap_t pixmap,
+                        struct xvisual_info fmt, bool owned attr_unused) {
+	auto dummy = (struct dummy_data *)base;
+	struct dummy_image *img = NULL;
+	HASH_FIND_INT(dummy->images, &pixmap, img);
+	if (img) {
+		(*img->refcount)++;
+		return img;
+	}
+
+	img = ccalloc(1, struct dummy_image);
+	img->pixmap = pixmap;
+	img->transparent = fmt.alpha_size != 0;
+	img->refcount = ccalloc(1, int);
+	*img->refcount = 1;
+
+	HASH_ADD_INT(dummy->images, pixmap, img);
+	return (void *)img;
+}
+
+void dummy_release_image(backend_t *base, void *image) {
+	auto dummy = (struct dummy_data *)base;
+	auto img = (struct dummy_image *)image;
+	assert(*img->refcount > 0);
+	(*img->refcount)--;
+	if (*img->refcount == 0) {
+		HASH_DEL(dummy->images, img);
+		free(img->refcount);
+		free(img);
+	}
+}
+
+bool dummy_is_image_transparent(struct backend_base *base, void *image) {
+	auto img = (struct dummy_image *)image;
+	dummy_check_image(base, img);
+	return img->transparent;
+}
+
+int dummy_buffer_age(struct backend_base *base attr_unused) {
+	return 2;
+}
+
+bool dummy_image_op(struct backend_base *base, enum image_operations op attr_unused,
+                    void *image, const region_t *reg_op attr_unused,
+                    const region_t *reg_visible attr_unused, void *args attr_unused) {
+	dummy_check_image(base, image);
+	return true;
+}
+
+bool dummy_set_image_property(struct backend_base *base, enum image_properties prop attr_unused,
+                              void *image, void *arg attr_unused) {
+	dummy_check_image(base, image);
+	return true;
+}
+
+void *dummy_clone_image(struct backend_base *base, const void *image,
+                        const region_t *reg_visible attr_unused) {
+	auto img = (const struct dummy_image *)image;
+	dummy_check_image(base, img);
+	(*img->refcount)++;
+	return (void *)img;
+}
+
+void *dummy_create_blur_context(struct backend_base *base attr_unused,
+                                enum blur_method method attr_unused, void *args attr_unused) {
+	static int dummy_context;
+	return &dummy_context;
+}
+
+void dummy_destroy_blur_context(struct backend_base *base attr_unused, void *ctx attr_unused) {
+}
+
+void dummy_get_blur_size(void *ctx attr_unused, int *width, int *height) {
+	// These numbers are arbitrary, to make sure the reisze_region code path is
+	// covered.
+	*width = 5;
+	*height = 5;
+}
+
+struct backend_operations dummy_ops = {
+    .init = dummy_init,
+    .deinit = dummy_deinit,
+    .compose = dummy_compose,
+    .fill = dummy_fill,
+    .blur = dummy_blur,
+    .bind_pixmap = dummy_bind_pixmap,
+    .render_shadow = default_backend_render_shadow,
+    .release_image = dummy_release_image,
+    .is_image_transparent = dummy_is_image_transparent,
+    .buffer_age = dummy_buffer_age,
+    .max_buffer_age = 5,
+
+    .image_op = dummy_image_op,
+    .clone_image = dummy_clone_image,
+    .set_image_property = dummy_set_image_property,
+    .create_blur_context = dummy_create_blur_context,
+    .destroy_blur_context = dummy_destroy_blur_context,
+    .get_blur_size = dummy_get_blur_size,
+
+};