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/*
* Copyright (c) 2017 Martin Lund
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <ctype.h>
#include <lxi.h>
#include "error.h"
#include "screenshot.h"
#define IMAGE_SIZE_MAX 0x400000 // 4 MB
int rigol_1000z_screenshot(char *address, int timeout)
{
char response[IMAGE_SIZE_MAX];
char *command, *image;
int device, length, n;
char c;
// Connect to LXI instrument
device = lxi_connect(address, 0, NULL, timeout, VXI11);
if (device == LXI_ERROR)
{
error_printf("Failed to connect\n");
return 1;
}
// Send SCPI command to grab PNG image
command = "display:data? on,0,png";
lxi_send(device, command, strlen(command), timeout);
length = lxi_receive(device, response, IMAGE_SIZE_MAX, timeout);
if (length < 0)
{
error_printf("Failed to receive message\n");
return 1;
}
// Strip TMC block header
c = response[1];
n = atoi(&c);
image = &response[0];
image += n+2;
length -= n+2;
// Dump remaining PNG image data to file
screenshot_file_dump(image, length, "png");
// Disconnect
lxi_disconnect(device);
return 0;
}
// Screenshot plugin configuration
struct screenshot_plugin rigol_1000z =
{
.name = "rigol-1000z",
.description = "Rigol DS/MSO 1000Z series oscilloscope",
.regex = "RIGOL TECHNOLOGIES Rigol Technologies DS1...Z MSO1...Z",
.screenshot = rigol_1000z_screenshot
};