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-rw-r--r--dri3/dri3_request.c394
1 files changed, 394 insertions, 0 deletions
diff --git a/dri3/dri3_request.c b/dri3/dri3_request.c
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index 000000000..3ebb9d509
--- /dev/null
+++ b/dri3/dri3_request.c
@@ -0,0 +1,394 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "dri3_priv.h"
+#include <syncsrv.h>
+#include <unistd.h>
+#include <xace.h>
+#include "../Xext/syncsdk.h"
+
+static int
+proc_dri3_query_version(ClientPtr client)
+{
+ REQUEST(xDRI3QueryVersionReq);
+ xDRI3QueryVersionReply rep = {
+ .type = X_Reply,
+ .sequenceNumber = client->sequence,
+ .length = 0,
+ .majorVersion = DRI3_MAJOR,
+ .minorVersion = DRI3_MINOR
+ };
+
+ REQUEST_SIZE_MATCH(xDRI3QueryVersionReq);
+ (void) stuff;
+ if (client->swapped) {
+ swaps(&rep.sequenceNumber);
+ swapl(&rep.length);
+ swapl(&rep.majorVersion);
+ swapl(&rep.minorVersion);
+ }
+ WriteToClient(client, sizeof(rep), &rep);
+ return Success;
+}
+
+static int
+proc_dri3_open(ClientPtr client)
+{
+ REQUEST(xDRI3OpenReq);
+ xDRI3OpenReply rep = {
+ .type = X_Reply,
+ .nfd = 1,
+ .sequenceNumber = client->sequence,
+ .length = 0,
+ };
+ RRProviderPtr provider;
+ DrawablePtr drawable;
+ ScreenPtr screen;
+ int fd;
+ int status;
+
+ REQUEST_SIZE_MATCH(xDRI3OpenReq);
+
+ status = dixLookupDrawable(&drawable, stuff->drawable, client, 0, DixReadAccess);
+ if (status != Success)
+ return status;
+
+ if (stuff->provider == None)
+ provider = NULL;
+ else if (!RRProviderType) {
+ return BadMatch;
+ } else {
+ VERIFY_RR_PROVIDER(stuff->provider, provider, DixReadAccess);
+ if (drawable->pScreen != provider->pScreen)
+ return BadMatch;
+ }
+ screen = drawable->pScreen;
+
+ status = dri3_open(client, screen, provider, &fd);
+ if (status != Success)
+ return status;
+
+ if (client->swapped) {
+ swaps(&rep.sequenceNumber);
+ swapl(&rep.length);
+ }
+
+ if (WriteFdToClient(client, fd, TRUE) < 0) {
+ close(fd);
+ return BadAlloc;
+ }
+
+ WriteToClient(client, sizeof (rep), &rep);
+
+ return Success;
+}
+
+static int
+proc_dri3_pixmap_from_buffer(ClientPtr client)
+{
+ REQUEST(xDRI3PixmapFromBufferReq);
+ int fd;
+ DrawablePtr drawable;
+ PixmapPtr pixmap;
+ int rc;
+
+ SetReqFds(client, 1);
+ REQUEST_SIZE_MATCH(xDRI3PixmapFromBufferReq);
+ LEGAL_NEW_RESOURCE(stuff->pixmap, client);
+ rc = dixLookupDrawable(&drawable, stuff->drawable, client, M_ANY, DixGetAttrAccess);
+ if (rc != Success) {
+ client->errorValue = stuff->drawable;
+ return rc;
+ }
+
+ if (!stuff->width || !stuff->height) {
+ client->errorValue = 0;
+ return BadValue;
+ }
+
+ if (stuff->width > 32767 || stuff->height > 32767)
+ return BadAlloc;
+
+ if (stuff->depth != 1) {
+ DepthPtr depth = drawable->pScreen->allowedDepths;
+ int i;
+ for (i = 0; i < drawable->pScreen->numDepths; i++, depth++)
+ if (depth->depth == stuff->depth)
+ break;
+ if (i == drawable->pScreen->numDepths) {
+ client->errorValue = stuff->depth;
+ return BadValue;
+ }
+ }
+
+ fd = ReadFdFromClient(client);
+ if (fd < 0)
+ return BadValue;
+
+ rc = dri3_pixmap_from_fd(&pixmap,
+ drawable->pScreen, fd,
+ stuff->width, stuff->height,
+ stuff->stride, stuff->depth,
+ stuff->bpp);
+ close (fd);
+ if (rc != Success)
+ return rc;
+
+ pixmap->drawable.id = stuff->pixmap;
+
+ /* security creation/labeling check */
+ rc = XaceHook(XACE_RESOURCE_ACCESS, client, stuff->pixmap, RT_PIXMAP,
+ pixmap, RT_NONE, NULL, DixCreateAccess);
+
+ if (rc != Success) {
+ (*drawable->pScreen->DestroyPixmap) (pixmap);
+ return rc;
+ }
+ if (AddResource(stuff->pixmap, RT_PIXMAP, (pointer) pixmap))
+ return Success;
+
+ return Success;
+}
+
+static int
+proc_dri3_buffer_from_pixmap(ClientPtr client)
+{
+ REQUEST(xDRI3BufferFromPixmapReq);
+ xDRI3BufferFromPixmapReply rep = {
+ .type = X_Reply,
+ .nfd = 1,
+ .sequenceNumber = client->sequence,
+ .length = 0,
+ };
+ int rc;
+ int fd;
+ PixmapPtr pixmap;
+
+ REQUEST_SIZE_MATCH(xDRI3BufferFromPixmapReq);
+ rc = dixLookupResourceByType((pointer *) &pixmap, stuff->pixmap, RT_PIXMAP,
+ client, DixWriteAccess);
+ if (rc != Success) {
+ client->errorValue = stuff->pixmap;
+ return rc;
+ }
+
+ rep.width = pixmap->drawable.width;
+ rep.height = pixmap->drawable.height;
+ rep.depth = pixmap->drawable.depth;
+ rep.bpp = pixmap->drawable.bitsPerPixel;
+
+ rc = dri3_fd_from_pixmap(&fd, pixmap, &rep.stride, &rep.size);
+ if (rc != Success)
+ return rc;
+
+ if (client->swapped) {
+ swaps(&rep.sequenceNumber);
+ swapl(&rep.length);
+ swapl(&rep.size);
+ swaps(&rep.width);
+ swaps(&rep.height);
+ swaps(&rep.stride);
+ }
+ if (WriteFdToClient(client, fd, TRUE) < 0) {
+ close(fd);
+ return BadAlloc;
+ }
+
+ WriteToClient(client, sizeof(rep), &rep);
+
+ return client->noClientException;
+}
+
+static int
+proc_dri3_fence_from_fd(ClientPtr client)
+{
+ REQUEST(xDRI3FenceFromFDReq);
+ DrawablePtr drawable;
+ int fd;
+ int status;
+
+ SetReqFds(client, 1);
+ REQUEST_SIZE_MATCH(xDRI3FenceFromFDReq);
+ LEGAL_NEW_RESOURCE(stuff->fence, client);
+
+ status = dixLookupDrawable(&drawable, stuff->drawable, client, M_ANY, DixGetAttrAccess);
+ if (status != Success)
+ return status;
+
+ fd = ReadFdFromClient(client);
+ if (fd < 0)
+ return BadValue;
+
+ status = SyncCreateFenceFromFD(client, drawable, stuff->fence,
+ fd, stuff->initially_triggered);
+
+ return status;
+}
+
+static int
+proc_dri3_fd_from_fence(ClientPtr client)
+{
+ REQUEST(xDRI3FDFromFenceReq);
+ xDRI3FDFromFenceReply rep = {
+ .type = X_Reply,
+ .nfd = 1,
+ .sequenceNumber = client->sequence,
+ .length = 0,
+ };
+ DrawablePtr drawable;
+ int fd;
+ int status;
+ SyncFence *fence;
+
+ REQUEST_SIZE_MATCH(xDRI3FDFromFenceReq);
+
+ status = dixLookupDrawable(&drawable, stuff->drawable, client, M_ANY, DixGetAttrAccess);
+ if (status != Success)
+ return status;
+ status = SyncVerifyFence(&fence, stuff->fence, client, DixWriteAccess);
+ if (status != Success)
+ return status;
+
+ fd = SyncFDFromFence(client, drawable, fence);
+ if (fd < 0)
+ return BadMatch;
+
+ if (client->swapped) {
+ swaps(&rep.sequenceNumber);
+ swapl(&rep.length);
+ }
+ if (WriteFdToClient(client, fd, FALSE) < 0)
+ return BadAlloc;
+
+ WriteToClient(client, sizeof(rep), &rep);
+
+ return client->noClientException;
+}
+
+int (*proc_dri3_vector[DRI3NumberRequests]) (ClientPtr) = {
+ proc_dri3_query_version, /* 0 */
+ proc_dri3_open, /* 1 */
+ proc_dri3_pixmap_from_buffer, /* 2 */
+ proc_dri3_buffer_from_pixmap, /* 3 */
+ proc_dri3_fence_from_fd, /* 4 */
+ proc_dri3_fd_from_fence, /* 5 */
+};
+
+int
+proc_dri3_dispatch(ClientPtr client)
+{
+ REQUEST(xReq);
+ if (stuff->data >= DRI3NumberRequests || !proc_dri3_vector[stuff->data])
+ return BadRequest;
+ return (*proc_dri3_vector[stuff->data]) (client);
+}
+
+static int
+sproc_dri3_query_version(ClientPtr client)
+{
+ REQUEST(xDRI3QueryVersionReq);
+
+ swaps(&stuff->length);
+ swapl(&stuff->majorVersion);
+ swapl(&stuff->minorVersion);
+ return (*proc_dri3_vector[stuff->dri3ReqType]) (client);
+}
+
+static int
+sproc_dri3_open(ClientPtr client)
+{
+ REQUEST(xDRI3OpenReq);
+
+ swaps(&stuff->length);
+ swapl(&stuff->drawable);
+ swapl(&stuff->provider);
+ return (*proc_dri3_vector[stuff->dri3ReqType]) (client);
+}
+
+static int
+sproc_dri3_pixmap_from_buffer(ClientPtr client)
+{
+ REQUEST(xDRI3PixmapFromBufferReq);
+
+ swaps(&stuff->length);
+ swapl(&stuff->pixmap);
+ swapl(&stuff->drawable);
+ swapl(&stuff->size);
+ swaps(&stuff->width);
+ swaps(&stuff->height);
+ swaps(&stuff->stride);
+ return (*proc_dri3_vector[stuff->dri3ReqType]) (client);
+}
+
+static int
+sproc_dri3_buffer_from_pixmap(ClientPtr client)
+{
+ REQUEST(xDRI3BufferFromPixmapReq);
+
+ swaps(&stuff->length);
+ swapl(&stuff->pixmap);
+ return (*proc_dri3_vector[stuff->dri3ReqType]) (client);
+}
+
+static int
+sproc_dri3_fence_from_fd(ClientPtr client)
+{
+ REQUEST(xDRI3FenceFromFDReq);
+
+ swaps(&stuff->length);
+ swapl(&stuff->drawable);
+ swapl(&stuff->fence);
+ return (*proc_dri3_vector[stuff->dri3ReqType]) (client);
+}
+
+static int
+sproc_dri3_fd_from_fence(ClientPtr client)
+{
+ REQUEST(xDRI3FDFromFenceReq);
+
+ swaps(&stuff->length);
+ swapl(&stuff->drawable);
+ swapl(&stuff->fence);
+ return (*proc_dri3_vector[stuff->dri3ReqType]) (client);
+}
+
+int (*sproc_dri3_vector[DRI3NumberRequests]) (ClientPtr) = {
+ sproc_dri3_query_version, /* 0 */
+ sproc_dri3_open, /* 1 */
+ sproc_dri3_pixmap_from_buffer, /* 2 */
+ sproc_dri3_buffer_from_pixmap, /* 3 */
+ sproc_dri3_fence_from_fd, /* 4 */
+ sproc_dri3_fd_from_fence, /* 5 */
+};
+
+int
+sproc_dri3_dispatch(ClientPtr client)
+{
+ REQUEST(xReq);
+ if (stuff->data >= DRI3NumberRequests || !sproc_dri3_vector[stuff->data])
+ return BadRequest;
+ return (*sproc_dri3_vector[stuff->data]) (client);
+}
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