118 lines
3.9 KiB
C
118 lines
3.9 KiB
C
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#ifndef GUAC_VNC_DISPLAY_H
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#define GUAC_VNC_DISPLAY_H
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#include "config.h"
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#include <rfb/rfbclient.h>
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#include <rfb/rfbproto.h>
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/**
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* Callback invoked by libVNCServer when it receives a new binary image data.
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* the VNC server. The image itself will be stored in the designated sub-
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* rectangle of client->framebuffer.
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*
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* @param client
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* The VNC client associated with the VNC session in which the new image
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* was received.
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*
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* @param x
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* The X coordinate of the upper-left corner of the destination rectangle
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* in which the image should be drawn, in pixels.
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*
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* @param y
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* The Y coordinate of the upper-left corner of the destination rectangle
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* in which the image should be drawn, in pixels.
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*
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* @param w
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* The width of the image, in pixels.
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*
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* @param h
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* The height of the image, in pixels.
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*/
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void guac_vnc_update(rfbClient* client, int x, int y, int w, int h);
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/**
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* Callback invoked by libVNCServer when it receives a CopyRect message.
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* CopyRect specified a rectangle of source data within the display and a
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* set of X/Y coordinates to which that rectangle should be copied.
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*
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* @param client
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* The VNC client associated with the VNC session in which the CopyRect
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* was received.
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*
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* @param src_x
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* The X coordinate of the upper-left corner of the source rectangle
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* from which the image data should be copied, in pixels.
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*
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* @param src_y
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* The Y coordinate of the upper-left corner of the source rectangle
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* from which the image data should be copied, in pixels.
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*
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* @param w
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* The width of the source and destination rectangles, in pixels.
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*
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* @param h
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* The height of the source and destination rectangles, in pixels.
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*
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* @param dest_x
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* The X coordinate of the upper-left corner of the destination rectangle
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* in which the copied image data should be drawn, in pixels.
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*
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* @param dest_y
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* The Y coordinate of the upper-left corner of the destination rectangle
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* in which the copied image data should be drawn, in pixels.
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*/
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void guac_vnc_copyrect(rfbClient* client, int src_x, int src_y, int w, int h,
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int dest_x, int dest_y);
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/**
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* Sets the pixel format to request of the VNC server. The request will be made
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* during the connection handshake with the VNC server using the values
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* specified by this function. Note that the VNC server is not required to
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* honor this request.
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*
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* @param client
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* The VNC client associated with the VNC session whose desired pixel
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* format should be set.
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*
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* @param color_depth
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* The desired new color depth, in bits per pixel. Valid values are 8, 16,
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* 24, and 32.
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*/
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void guac_vnc_set_pixel_format(rfbClient* client, int color_depth);
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/**
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* Overridden implementation of the rfb_MallocFrameBuffer function invoked by
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* libVNCServer when the display is being resized (or initially allocated).
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*
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* @param client
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* The VNC client associated with the VNC session whose display needs to be
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* allocated or reallocated.
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*
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* @return
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* The original value returned by rfb_MallocFrameBuffer().
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*/
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rfbBool guac_vnc_malloc_framebuffer(rfbClient* rfb_client);
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#endif
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