61 lines
2.3 KiB
C
61 lines
2.3 KiB
C
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/*
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* Copyright (C) 2014 Glyptodon LLC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "client.h"
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#include "resolution.h"
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#include <guacamole/client.h>
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int guac_rdp_resolution_reasonable(guac_client* client, int resolution) {
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int width = client->info.optimal_width;
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int height = client->info.optimal_height;
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/* Convert client pixels to remote pixels */
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width = width * resolution / client->info.optimal_resolution;
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height = height * resolution / client->info.optimal_resolution;
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/*
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* Resolution is reasonable if the same as the client optimal resolution
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* OR if the resulting display area is reasonable
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*/
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return client->info.optimal_resolution == resolution
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|| width*height >= GUAC_RDP_REASONABLE_AREA;
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}
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int guac_rdp_suggest_resolution(guac_client* client) {
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/* Prefer RDP's native resolution */
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if (guac_rdp_resolution_reasonable(client, GUAC_RDP_NATIVE_RESOLUTION))
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return GUAC_RDP_NATIVE_RESOLUTION;
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/* If native resolution is too tiny, try higher resolution */
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if (guac_rdp_resolution_reasonable(client, GUAC_RDP_HIGH_RESOLUTION))
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return GUAC_RDP_HIGH_RESOLUTION;
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/* Fallback to client-suggested resolution */
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return client->info.optimal_resolution;
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}
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