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/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Laxmikant Rashinkar 2014
*
* 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.
*
* Routines to copy regions from framebuffer to shared memory
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* this should be before all X11 .h files */
#include <xorg-server.h>
/* all driver need this */
#include <xf86.h>
#include <xf86_OSproc.h>
#include "rdp.h"
#include "rdpDraw.h"
#include "rdpClientCon.h"
#include "rdpReg.h"
#define LOG_LEVEL 1
#define LLOGLN(_level, _args) \
do { if (_level < LOG_LEVEL) { ErrorF _args ; ErrorF("\n"); } } while (0)
/******************************************************************************/
static Bool
rdpCapture0(RegionPtr in_reg, RegionPtr out_reg,
void *src, int src_width, int src_height,
int src_stride, int src_format,
void *dst, int dst_width, int dst_height,
int dst_stride, int dst_format, int max_rects)
{
BoxPtr prects;
BoxRec rect;
RegionRec reg;
char *src_rect;
char *dst_rect;
int num_regions;
int bytespp;
int width;
int height;
int src_offset;
int dst_offset;
int bytes;
int i;
int j;
Bool rv;
LLOGLN(10, ("rdpCapture0:"));
rv = TRUE;
rect.x1 = 0;
rect.y1 = 0;
rect.x2 = min(dst_width, src_width);
rect.y2 = min(dst_height, src_height);
rdpRegionInit(®, &rect, 0);
rdpRegionIntersect(®, in_reg, ®);
num_regions = REGION_NUM_RECTS(®);
if (num_regions > max_rects)
{
num_regions = 1;
prects = rdpRegionExtents(®);
rdpRegionUninit(out_reg);
rdpRegionInit(out_reg, prects, 0);
}
else
{
prects = REGION_RECTS(®);
rdpRegionCopy(out_reg, ®);
}
if ((src_format == XRDP_a8r8g8b8) && (dst_format == XRDP_a8r8g8b8))
{
bytespp = 4;
for (i = 0; i < num_regions; i++)
{
/* get rect to copy */
rect = prects[i];
/* get rect dimensions */
width = rect.x2 - rect.x1;
height = rect.y2 - rect.y1;
/* point to start of each rect in respective memory */
src_offset = rect.y1 * src_stride + rect.x1 * bytespp;
dst_offset = rect.y1 * dst_stride + rect.x1 * bytespp;
src_rect = src + src_offset;
dst_rect = dst + dst_offset;
/* bytes per line */
bytes = width * bytespp;
/* copy one line at a time */
for (j = 0; j < height; j++)
{
memcpy(dst_rect, src_rect, bytes);
src_rect += src_stride;
dst_rect += dst_stride;
}
}
}
else
{
LLOGLN(0, ("rdpCapture0: unimp color conversion"));
}
rdpRegionUninit(®);
return rv;
}
/**
* Copy an array of rectangles from one memory area to another
*****************************************************************************/
Bool
rdpCapture(RegionPtr in_reg, RegionPtr out_reg,
void *src, int src_width, int src_height,
int src_stride, int src_format,
void *dst, int dst_width, int dst_height,
int dst_stride, int dst_format, int mode)
{
LLOGLN(10, ("rdpCapture:"));
switch (mode)
{
case 0:
return rdpCapture0(in_reg, out_reg,
src, src_width, src_height,
src_stride, src_format,
dst, dst_width, dst_height,
dst_stride, dst_format, 15);
default:
LLOGLN(0, ("rdpCapture: unimp mode"));
break;
}
return TRUE;
}
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