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xf86vidmode: ProcVidModeSetGammaRamp(): use x_rpcbuf_t

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Use x_rpcbuf_t for assembling reply payload.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
This commit is contained in:
Enrico Weigelt, metux IT consult
2025-08-21 17:40:42 +02:00
committed by Enrico Weigelt
parent 2c2ce8bfea
commit 0bf7d613d5
1 changed files with 10 additions and 15 deletions
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25
Xext/vidmode.c
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@@ -1518,9 +1518,6 @@ ProcVidModeSetGammaRamp(ClientPtr client)
static int
ProcVidModeGetGammaRamp(ClientPtr client)
{
CARD16 *ramp = NULL;
size_t ramplen = 0;
REQUEST(xXF86VidModeGetGammaRampReq);
REQUEST_SIZE_MATCH(xXF86VidModeGetGammaRampReq);
@@ -1537,34 +1534,32 @@ ProcVidModeGetGammaRamp(ClientPtr client)
const int length = (stuff->size + 1) & ~1;
x_rpcbuf_t rpcbuf = { .swapped = client->swapped, .err_clear = TRUE };
if (stuff->size) {
if (!(ramp = calloc(length, 3 * sizeof(CARD16))))
size_t ramplen = length * 3 * sizeof(CARD16);
CARD16 *ramp = x_rpcbuf_reserve(&rpcbuf, ramplen);
if (!ramp)
return BadAlloc;
ramplen = length * 3 * sizeof(CARD16);
if (!pVidMode->GetGammaRamp(pScreen, stuff->size,
ramp, ramp + length, ramp + (length * 2))) {
free(ramp);
x_rpcbuf_clear(&rpcbuf);
return BadValue;
}
if (rpcbuf.swapped)
SwapShorts((short *) rpcbuf.buffer, rpcbuf.wpos / sizeof(CARD16));
}
xXF86VidModeGetGammaRampReply rep = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = bytes_to_int32(ramplen),
.size = stuff->size
};
if (client->swapped) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
swaps(&rep.size);
SwapShorts((short *) ramp, length * 3);
}
WriteToClient(client, sizeof(xXF86VidModeGetGammaRampReply), &rep);
WriteToClient(client, ramplen, ramp);
free(ramp);
X_SEND_REPLY_WITH_RPCBUF(client, rep, rpcbuf);
return Success;
}