Changeset 71cbe5c in mainline for uspace/lib/ipcgfx/src/client.c

Timestamp:

2019-12-06T17:48:48Z (5 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

0b63dc2

Parents:

87a7cdb

Message:

Make bitmaps work with IPC GC / RFB

File:

• uspace/lib/ipcgfx/src/client.c (modified) (2 diffs)

uspace/lib/ipcgfx/src/client.c

@@ -123 +123 @@
         gfx_coord2_t dim;
         async_exch_t *exch = NULL;
+        as_area_info_t info;
         ipc_call_t answer;
+        size_t asize;
         aid_t req;
         errno_t rc;
@@ -148 +150 @@
         } else {
                 /*
-                 * XXX We could allow this if the pixels point to a shareable
-                 * area or we could do a copy of the data when rendering
+                 * Accept user allocation if it points to a an acceptable
+                 * memory area.
                  */
-                rc = ENOTSUP;
-                goto error;
+                rc = as_area_get_info(alloc->pixels, &info);
+                if (rc != EOK)
+                        goto error;
+
+                /* Pixels should start at the beginning of the area */
+                if (info.start_addr != (uintptr_t) alloc->pixels) {
+                        rc = EINVAL;
+                        goto error;
+                }
+
+                /* Size of area should be size of bitmap rounded up to page size */
+                asize = PAGES2SIZE(SIZE2PAGES(alloc->pitch * dim.y));
+                if (info.size != asize) {
+                        rc = EINVAL;
+                        goto error;
+                }
+
+                ipcbm->alloc = *alloc;
         }