From 5290f2087a314506e2926edd9640cf1feb793866 Mon Sep 17 00:00:00 2001 From: Doug Zongker Date: Tue, 11 Mar 2014 13:22:04 -0700 Subject: separate fbdev-specific code out from minui Isolate the code that interacts with fbdev, in preparation for adding a new backend. Change-Id: I19105e9da1ca6408cebc110f7e2bb5abfb481ee9 --- minui/graphics.h | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 minui/graphics.h (limited to 'minui/graphics.h') diff --git a/minui/graphics.h b/minui/graphics.h new file mode 100644 index 000000000..94b89a554 --- /dev/null +++ b/minui/graphics.h @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef _GRAPHICS_H_ +#define _GRAPHICS_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include +#include "minui.h" + +typedef struct minui_backend { + // Initializes the backend and returns a gr_surface to draw into. + gr_surface (*init)(struct minui_backend*); + + // Causes the current drawing surface (returned by the most recent + // call to flip() or init()) to be displayed, and returns a new + // drawing surface. + gr_surface (*flip)(struct minui_backend*); + + // Blank (or unblank) the screen. + void (*blank)(struct minui_backend*, bool); + + // Device cleanup when drawing is done. + void (*exit)(struct minui_backend*); +} minui_backend; + +minui_backend* open_fbdev(); + +#ifdef __cplusplus +} +#endif + +#endif -- cgit v1.2.3