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dri3: consolidate reply buffers

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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
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@@ -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;
}