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df0397b10b
This is necessary in case overlays change size. When this happens, we must damage the larger of the overlays' rectangles this frame and last frame. This erases the overlay from where it is no longer appears. In order to do this, we must keep track of the rectangles for every overlay with no exception. We cannot short-circuit the generation of rectangles if we run out of buffer space, and we must allocate space for MAX_OVERLAY_RECTS rectangles for every frame. Otherwise, we will not know where to erase the overlay if it disappears.
147 lines
4.4 KiB
C
147 lines
4.4 KiB
C
/**
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* Looking Glass
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* Copyright (C) 2017-2021 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _H_LG_APP_
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#define _H_LG_APP_
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#include <stdbool.h>
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#include <linux/input.h>
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#include "common/ringbuffer.h"
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#include "common/types.h"
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#include "interface/displayserver.h"
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#include "interface/overlay.h"
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typedef enum LG_MsgAlert
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{
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LG_ALERT_INFO ,
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LG_ALERT_SUCCESS,
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LG_ALERT_WARNING,
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LG_ALERT_ERROR
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}
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LG_MsgAlert;
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bool app_isRunning(void);
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bool app_inputEnabled(void);
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bool app_isCaptureMode(void);
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bool app_isCaptureOnlyMode(void);
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bool app_isFormatValid(void);
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void app_updateCursorPos(double x, double y);
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void app_updateWindowPos(int x, int y);
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void app_handleResizeEvent(int w, int h, double scale, const struct Border border);
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void app_handleMouseRelative(double normx, double normy,
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double rawx, double rawy);
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void app_handleMouseBasic(void);
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void app_resyncMouseBasic(void);
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void app_handleButtonPress(int button);
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void app_handleButtonRelease(int button);
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void app_handleKeyPress(int scancode);
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void app_handleKeyRelease(int scancode);
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void app_handleEnterEvent(bool entered);
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void app_handleFocusEvent(bool focused);
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void app_handleCloseEvent(void);
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void app_handleRenderEvent(const uint64_t timeUs);
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void app_setFullscreen(bool fs);
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bool app_getFullscreen(void);
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bool app_getProp(LG_DSProperty prop, void * ret);
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#ifdef ENABLE_EGL
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EGLDisplay app_getEGLDisplay(void);
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EGLNativeWindowType app_getEGLNativeWindow(void);
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void app_eglSwapBuffers(EGLDisplay display, EGLSurface surface, const struct Rect * damage, int count);
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#endif
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#ifdef ENABLE_OPENGL
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LG_DSGLContext app_glCreateContext(void);
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void app_glDeleteContext(LG_DSGLContext context);
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void app_glMakeCurrent(LG_DSGLContext context);
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void app_glSetSwapInterval(int interval);
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void app_glSwapBuffers(void);
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#endif
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#define MAX_OVERLAY_RECTS 10
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void app_registerOverlay(const struct LG_OverlayOps * ops, void * params);
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/**
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* render the overlay
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* returns:
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* -1 for full output damage
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* 0 for no overlay
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* >0 number of rects written into rects
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*/
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int app_renderOverlay(struct Rect * rects, int maxRects);
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void app_freeOverlays(void);
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struct OverlayGraph;
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typedef struct OverlayGraph * GraphHandle;
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GraphHandle app_registerGraph(const char * name, RingBuffer buffer);
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void app_unregisterGraph(GraphHandle handle);
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void app_clipboardRelease(void);
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void app_clipboardNotifyTypes(const LG_ClipboardData types[], int count);
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void app_clipboardNotifySize(const LG_ClipboardData type, size_t size);
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void app_clipboardData(const LG_ClipboardData type, uint8_t * data, size_t size);
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void app_clipboardRequest(const LG_ClipboardReplyFn replyFn, void * opaque);
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/**
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* Show an alert on screen
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* @param type The alert type
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* param fmt The alert message format
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@ param ... formatted message values
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*/
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void app_alert(LG_MsgAlert type, const char * fmt, ...);
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typedef struct KeybindHandle * KeybindHandle;
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typedef void (*KeybindFn)(int sc, void * opaque);
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/**
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* Register a handler for the <super>+<key> combination
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* @param sc The scancode to register
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* @param callback The function to be called when the combination is pressed
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* @param opaque A pointer to be passed to the callback, may be NULL
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* @retval A handle for the binding or NULL on failure.
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* The caller is required to release the handle via `app_releaseKeybind` when it is no longer required
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*/
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KeybindHandle app_registerKeybind(int sc, KeybindFn callback, void * opaque, const char * description);
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/**
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* Release an existing key binding
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* @param handle A pointer to the keybind handle to release, may be NULL
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*/
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void app_releaseKeybind(KeybindHandle * handle);
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/**
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* Release all keybindings
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*/
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void app_releaseAllKeybinds(void);
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/**
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* Changes whether the help message is displayed or not.
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*/
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void app_showHelp(bool show);
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#endif
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