1 files changed, 87 insertions, 0 deletions
diff --git a/include/wlr/render/interface.h b/include/wlr/render/interface.h
new file mode 100644
index 00000000..c98a7cda
--- /dev/null
+++ b/include/wlr/render/interface.h
@@ -0,0 +1,87 @@
+/*
+ * This an unstable interface of wlroots. No guarantees are made regarding the
+ * future consistency of this API.
+ */
+#ifndef WLR_USE_UNSTABLE
+#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
+#endif
+
+#ifndef WLR_RENDER_INTERFACE_H
+#define WLR_RENDER_INTERFACE_H
+
+#include <wlr/config.h>
+
+#if !WLR_HAS_X11_BACKEND && !WLR_HAS_XWAYLAND && !defined MESA_EGL_NO_X11_HEADERS
+#define MESA_EGL_NO_X11_HEADERS
+#endif
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <stdbool.h>
+#include <wayland-server-protocol.h>
+#include <wlr/render/wlr_renderer.h>
+#include <wlr/render/wlr_texture.h>
+#include <wlr/types/wlr_box.h>
+#include <wlr/types/wlr_output.h>
+#include <wlr/render/dmabuf.h>
+
+struct wlr_renderer_impl {
+	void (*begin)(struct wlr_renderer *renderer, uint32_t width,
+		uint32_t height);
+	void (*end)(struct wlr_renderer *renderer);
+	void (*clear)(struct wlr_renderer *renderer, const float color[static 4]);
+	void (*scissor)(struct wlr_renderer *renderer, struct wlr_box *box);
+	bool (*render_texture_with_matrix)(struct wlr_renderer *renderer,
+		struct wlr_texture *texture, const float matrix[static 9],
+		float alpha);
+	void (*render_quad_with_matrix)(struct wlr_renderer *renderer,
+		const float color[static 4], const float matrix[static 9]);
+	void (*render_ellipse_with_matrix)(struct wlr_renderer *renderer,
+		const float color[static 4], const float matrix[static 9]);
+	const enum wl_shm_format *(*formats)(
+		struct wlr_renderer *renderer, size_t *len);
+	bool (*format_supported)(struct wlr_renderer *renderer,
+		enum wl_shm_format fmt);
+	bool (*resource_is_wl_drm_buffer)(struct wlr_renderer *renderer,
+		struct wl_resource *resource);
+	void (*wl_drm_buffer_get_size)(struct wlr_renderer *renderer,
+		struct wl_resource *buffer, int *width, int *height);
+	int (*get_dmabuf_formats)(struct wlr_renderer *renderer, int **formats);
+	int (*get_dmabuf_modifiers)(struct wlr_renderer *renderer, int format,
+		uint64_t **modifiers);
+	enum wl_shm_format (*preferred_read_format)(struct wlr_renderer *renderer);
+	bool (*read_pixels)(struct wlr_renderer *renderer, enum wl_shm_format fmt,
+		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);
+	struct wlr_texture *(*texture_from_pixels)(struct wlr_renderer *renderer,
+		enum wl_shm_format fmt, uint32_t stride, uint32_t width,
+		uint32_t height, const void *data);
+	struct wlr_texture *(*texture_from_wl_drm)(struct wlr_renderer *renderer,
+		struct wl_resource *data);
+	struct wlr_texture *(*texture_from_dmabuf)(struct wlr_renderer *renderer,
+		struct wlr_dmabuf_attributes *attribs);
+	void (*destroy)(struct wlr_renderer *renderer);
+	void (*init_wl_display)(struct wlr_renderer *renderer,
+		struct wl_display *wl_display);
+};
+
+void wlr_renderer_init(struct wlr_renderer *renderer,
+	const struct wlr_renderer_impl *impl);
+
+struct wlr_texture_impl {
+	void (*get_size)(struct wlr_texture *texture, int *width, int *height);
+	bool (*is_opaque)(struct wlr_texture *texture);
+	bool (*write_pixels)(struct wlr_texture *texture,
+		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,
+		const void *data);
+	bool (*to_dmabuf)(struct wlr_texture *texture,
+		struct wlr_dmabuf_attributes *attribs);
+	void (*destroy)(struct wlr_texture *texture);
+};
+
+void wlr_texture_init(struct wlr_texture *texture,
+	const struct wlr_texture_impl *impl);
+
+#endif