Merge pull request #1069 from emersion/screencopy

Add wlr-screencopy-unstable-v1 support

3 files changed, 48 insertions, 2 deletions

diff --git a/include/wlr/render/interface.h b/include/wlr/render/interface.h
index fb427c89..1b138ea3 100644
--- a/include/wlr/render/interface.h
+++ b/include/wlr/render/interface.h
@@ -34,7 +34,7 @@ struct wlr_renderer_impl {
 	int (*get_dmabuf_modifiers)(struct wlr_renderer *renderer, int format,
 		uint64_t **modifiers);
 	bool (*read_pixels)(struct wlr_renderer *renderer, enum wl_shm_format fmt,
-		uint32_t stride, uint32_t width, uint32_t height,
+		uint32_t *flags, uint32_t stride, uint32_t width, uint32_t height,
 		uint32_t src_x, uint32_t src_y, uint32_t dst_x, uint32_t dst_y,
 		void *data);
 	bool (*format_supported)(struct wlr_renderer *renderer,
diff --git a/include/wlr/render/wlr_renderer.h b/include/wlr/render/wlr_renderer.h
index c715e4b0..0650bf1b 100644
--- a/include/wlr/render/wlr_renderer.h
+++ b/include/wlr/render/wlr_renderer.h
@@ -7,6 +7,10 @@
 #include <wlr/render/wlr_texture.h>
 #include <wlr/types/wlr_box.h>
 
+enum wlr_renderer_read_pixels_flags {
+	WLR_RENDERER_READ_PIXELS_Y_INVERT = 1,
+};
+
 struct wlr_renderer_impl;
 
 struct wlr_renderer {
@@ -87,9 +91,12 @@ int wlr_renderer_get_dmabuf_modifiers(struct wlr_renderer *renderer, int format,
 /**
  * Reads out of pixels of the currently bound surface into data. `stride` is in
  * bytes.
+ *
+ * If `flags` is not NULl, the caller indicates that it accepts frame flags
+ * defined in `enum wlr_renderer_read_pixels_flags`.
  */
 bool wlr_renderer_read_pixels(struct wlr_renderer *r, enum wl_shm_format fmt,
-	uint32_t stride, uint32_t width, uint32_t height,
+	uint32_t *flags, uint32_t stride, uint32_t width, uint32_t height,
 	uint32_t src_x, uint32_t src_y, uint32_t dst_x, uint32_t dst_y, void *data);
 /**
  * Checks if a format is supported.
diff --git a/include/wlr/types/wlr_screencopy_v1.h b/include/wlr/types/wlr_screencopy_v1.h
new file mode 100644
index 00000000..892687aa
--- /dev/null
+++ b/include/wlr/types/wlr_screencopy_v1.h
@@ -0,0 +1,39 @@
+#ifndef WLR_TYPES_WLR_SCREENCOPY_V1_H
+#define WLR_TYPES_WLR_SCREENCOPY_V1_H
+
+#include <wayland-server.h>
+
+struct wlr_screencopy_manager_v1 {
+	struct wl_global *global;
+	struct wl_list resources; // wl_resource
+	struct wl_list frames; // wlr_screencopy_frame_v1::link
+
+	struct wl_listener display_destroy;
+
+	void *data;
+};
+
+struct wlr_screencopy_frame_v1 {
+	struct wl_resource *resource;
+	struct wlr_screencopy_manager_v1 *manager;
+	struct wl_list link;
+
+	enum wl_shm_format format;
+	struct wlr_box box;
+	int stride;
+
+	struct wl_shm_buffer *buffer;
+	struct wl_listener buffer_destroy;
+
+	struct wlr_output *output;
+	struct wl_listener output_swap_buffers;
+
+	void *data;
+};
+
+struct wlr_screencopy_manager_v1 *wlr_screencopy_manager_v1_create(
+	struct wl_display *display);
+void wlr_screencopy_manager_v1_destroy(
+	struct wlr_screencopy_manager_v1 *screencopy);
+
+#endif