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dri3: consolidate reply buffers 

Allocate reply buffers on stack and put multiple fragments into one buffer,
in order to make it easier doing write out by generic macros, in subsequent
commits.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
This commit is contained in:
Enrico Weigelt, metux IT consult 2024-07-15 13:07:25 +02:00 committed by Enrico Weigelt, metux IT consult .
parent 2edc5662f8
commit fd8b86583e
1 changed files with 32 additions and 20 deletions
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52
dri3/dri3_request.c
View File

@ -391,13 +391,26 @@ proc_dri3_get_supported_modifiers(ClientPtr client)
&nwindowmodifiers, &window_modifiers,
&nscreenmodifiers, &screen_modifiers);
const size_t bufsz = (nwindowmodifiers + nscreenmodifiers) * sizeof(CARD64);
CARD64 *buf = calloc(1, bufsz);
if (!buf) {
free(window_modifiers);
free(screen_modifiers);
return BadAlloc;
}
memcpy(buf, window_modifiers, sizeof(CARD64) * nwindowmodifiers);
memcpy(&buf[nwindowmodifiers], screen_modifiers, sizeof(CARD64) * nscreenmodifiers);
free(window_modifiers);
free(screen_modifiers);
xDRI3GetSupportedModifiersReply rep = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.numWindowModifiers = nwindowmodifiers,
.numScreenModifiers = nscreenmodifiers,
.length = bytes_to_int32(nwindowmodifiers * sizeof(CARD64)) +
bytes_to_int32(nscreenmodifiers * sizeof(CARD64)),
.length = bytes_to_int32(bufsz),
};
if (client->swapped) {
@ -405,19 +418,13 @@ proc_dri3_get_supported_modifiers(ClientPtr client)
swapl(&rep.length);
swapl(&rep.numWindowModifiers);
swapl(&rep.numScreenModifiers);
for (i = 0; i < nwindowmodifiers; i++)
swapll(&window_modifiers[i]);
for (i = 0; i < nscreenmodifiers; i++)
swapll(&screen_modifiers[i]);
for (i = 0; i < nwindowmodifiers+nscreenmodifiers; i++)
swapll(&buf[i]);
}
WriteToClient(client, sizeof(rep), &rep);
WriteToClient(client, nwindowmodifiers * sizeof(CARD64), window_modifiers);
WriteToClient(client, nscreenmodifiers * sizeof(CARD64), screen_modifiers);
free(window_modifiers);
free(screen_modifiers);
WriteToClient(client, bufsz, buf);
free(buf);
return Success;
}
@ -547,11 +554,19 @@ proc_dri3_buffers_from_pixmap(ClientPtr client)
}
}
const size_t bufsz = num_fds * 2 * sizeof(CARD32);
CARD32 *buf = calloc(1, bufsz);
if (!buf)
return BadAlloc;
memcpy(buf, strides, num_fds * sizeof(CARD32));
memcpy(&buf[num_fds], offsets, num_fds * sizeof(CARD32));
xDRI3BuffersFromPixmapReply rep = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.nfd = num_fds,
.length = bytes_to_int32(num_fds * 2 * sizeof(CARD32)),
.length = bytes_to_int32(bufsz),
.width = pixmap->drawable.width,
.height = pixmap->drawable.height,
.depth = pixmap->drawable.depth,
@ -565,16 +580,13 @@ proc_dri3_buffers_from_pixmap(ClientPtr client)
swaps(&rep.width);
swaps(&rep.height);
swapll(&rep.modifier);
for (i = 0; i < num_fds; i++) {
swapl(&strides[i]);
swapl(&offsets[i]);
}
for (i = 0; i < num_fds * 2; i++)
swapl(&buf[i]);
}
WriteToClient(client, sizeof(rep), &rep);
WriteToClient(client, num_fds * sizeof(CARD32), strides);
WriteToClient(client, num_fds * sizeof(CARD32), offsets);
WriteToClient(client, bufsz, buf);
free(buf);
return Success;
}