From 4fa90b05119720a67ccb63cd89246abdb4abf4ea Mon Sep 17 00:00:00 2001
From: emersion <contact@emersion.fr>
Date: Tue, 23 Jan 2018 22:06:54 +0100
Subject: Backport screenshooter fixes from the renderer redesign v1

This backports some changes to #319 to fix the screenshooter data
format. This also adds wlr_backend_get_renderer which will be
useful to support multiple renderers.
---
 include/wlr/backend.h                 |  1 +
 include/wlr/backend/interface.h       |  1 +
 include/wlr/render.h                  | 13 ++++++++++---
 include/wlr/render/interface.h        |  8 ++++++--
 include/wlr/types/wlr_screenshooter.h |  4 +---
 5 files changed, 19 insertions(+), 8 deletions(-)

(limited to 'include/wlr')

diff --git a/include/wlr/backend.h b/include/wlr/backend.h
index 4632dcbf..d4b1f773 100644
--- a/include/wlr/backend.h
+++ b/include/wlr/backend.h
@@ -23,6 +23,7 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_display *display);
 bool wlr_backend_start(struct wlr_backend *backend);
 void wlr_backend_destroy(struct wlr_backend *backend);
 struct wlr_egl *wlr_backend_get_egl(struct wlr_backend *backend);
+struct wlr_renderer *wlr_backend_get_renderer(struct wlr_backend *backend);
 
 uint32_t usec_to_msec(uint64_t usec);
 
diff --git a/include/wlr/backend/interface.h b/include/wlr/backend/interface.h
index 3f0aaadb..d9212795 100644
--- a/include/wlr/backend/interface.h
+++ b/include/wlr/backend/interface.h
@@ -9,6 +9,7 @@ struct wlr_backend_impl {
 	bool (*start)(struct wlr_backend *backend);
 	void (*destroy)(struct wlr_backend *backend);
 	struct wlr_egl *(*get_egl)(struct wlr_backend *backend);
+	struct wlr_renderer *(*get_renderer)(struct wlr_backend *backend);
 };
 
 void wlr_backend_init(struct wlr_backend *backend,
diff --git a/include/wlr/render.h b/include/wlr/render.h
index 5027064d..00088b52 100644
--- a/include/wlr/render.h
+++ b/include/wlr/render.h
@@ -52,10 +52,17 @@ const enum wl_shm_format *wlr_renderer_get_formats(
 bool wlr_renderer_buffer_is_drm(struct wlr_renderer *renderer,
 	struct wl_resource *buffer);
 /**
- * Reads pixels and stores them in out_data as ARGB8888.
+ * Reads out of pixels of the currently bound surface into data. `stride` is in
+ * bytes.
  */
-void wlr_renderer_read_pixels(struct wlr_renderer *r, int x, int y,
-	int width, int height, void *out_data);
+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 src_x, uint32_t src_y, uint32_t dst_x, uint32_t dst_y, void *data);
+/**
+ * Checks if a format is supported.
+ */
+bool wlr_renderer_format_supported(struct wlr_renderer *r,
+	enum wl_shm_format fmt);
 /**
  * Destroys this wlr_renderer. Textures must be destroyed separately.
  */
diff --git a/include/wlr/render/interface.h b/include/wlr/render/interface.h
index bbc5acb4..bb337409 100644
--- a/include/wlr/render/interface.h
+++ b/include/wlr/render/interface.h
@@ -28,8 +28,12 @@ struct wlr_renderer_impl {
 		struct wlr_renderer *renderer, size_t *len);
 	bool (*buffer_is_drm)(struct wlr_renderer *renderer,
 		struct wl_resource *buffer);
-	void (*read_pixels)(struct wlr_renderer *renderer, int x, int y, int width,
-		int height, void *out_data);
+	bool (*read_pixels)(struct wlr_renderer *renderer, enum wl_shm_format fmt,
+		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,
+		enum wl_shm_format fmt);
 	void (*destroy)(struct wlr_renderer *renderer);
 };
 
diff --git a/include/wlr/types/wlr_screenshooter.h b/include/wlr/types/wlr_screenshooter.h
index 4c66be3f..cfe7742d 100644
--- a/include/wlr/types/wlr_screenshooter.h
+++ b/include/wlr/types/wlr_screenshooter.h
@@ -4,7 +4,6 @@
 
 struct wlr_screenshooter {
 	struct wl_global *wl_global;
-	struct wlr_renderer *renderer;
 	struct wl_list screenshots; // wlr_screenshot::link
 
 	struct wl_listener display_destroy;
@@ -23,8 +22,7 @@ struct wlr_screenshot {
 	void* data;
 };
 
-struct wlr_screenshooter *wlr_screenshooter_create(struct wl_display *display,
-	struct wlr_renderer *renderer);
+struct wlr_screenshooter *wlr_screenshooter_create(struct wl_display *display);
 void wlr_screenshooter_destroy(struct wlr_screenshooter *screenshooter);
 
 #endif
-- 
cgit v1.2.3