1 files changed, 68 insertions, 0 deletions
diff --git a/frame.c b/frame.c
new file mode 100644
index 0000000..2e008ed
--- /dev/null
+++ b/frame.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2023 Mikhail Burakov. This file is part of receiver.
+ *
+ * receiver is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * receiver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with receiver.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "frame.h"
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "util.h"
+
+struct Frame* FrameCreate(uint32_t width, uint32_t height, uint32_t fourcc,
+                          size_t nplanes, const struct FramePlane* planes) {
+  struct AUTO(Frame)* frame = malloc(sizeof(struct Frame));
+  if (!frame) {
+    LOG("Failed to allocate frame (%s)", strerror(errno));
+    return NULL;
+  }
+  *frame = (struct Frame){
+      .width = width,
+      .height = height,
+      .fourcc = fourcc,
+      .nplanes = nplanes,
+      .planes[0] = {.dmabuf_fd = -1, .pitch = 0, .offset = 0, .modifier = 0},
+      .planes[1] = {.dmabuf_fd = -1, .pitch = 0, .offset = 0, .modifier = 0},
+      .planes[2] = {.dmabuf_fd = -1, .pitch = 0, .offset = 0, .modifier = 0},
+      .planes[3] = {.dmabuf_fd = -1, .pitch = 0, .offset = 0, .modifier = 0},
+  };
+
+  for (size_t i = 0; i < nplanes; i++) {
+    frame->planes[i] = (struct FramePlane){
+        .dmabuf_fd = dup(planes[i].dmabuf_fd),
+        .pitch = planes[i].pitch,
+        .offset = planes[i].offset,
+        .modifier = planes[i].modifier,
+    };
+    if (frame->planes[i].dmabuf_fd == -1) {
+      LOG("Failed to dup dmabuf fd (%s)", strerror(errno));
+      return NULL;
+    }
+  }
+
+  return RELEASE(frame);
+}
+
+void FrameDestroy(struct Frame** frame) {
+  if (!frame || !*frame) return;
+  for (size_t i = (*frame)->nplanes; i; i--) {
+    if ((*frame)->planes[i].dmabuf_fd != -1)
+      close((*frame)->planes[i].dmabuf_fd);
+  }
+}