fix [2168531] have software-only gralloc buffer side-step the HAL
diff --git a/include/private/ui/sw_gralloc_handle.h b/include/private/ui/sw_gralloc_handle.h
new file mode 100644
index 0000000..b3d333e
--- /dev/null
+++ b/include/private/ui/sw_gralloc_handle.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_UI_PRIVATE_SW_GRALLOC_HANDLE_H
+#define ANDROID_UI_PRIVATE_SW_GRALLOC_HANDLE_H
+
+#include <stdint.h>
+#include <limits.h>
+#include <sys/cdefs.h>
+#include <hardware/gralloc.h>
+#include <errno.h>
+
+#include <cutils/native_handle.h>
+
+namespace android {
+
+/*****************************************************************************/
+
+struct sw_gralloc_handle_t : public native_handle
+{
+ // file-descriptors
+ int fd;
+ // ints
+ int magic;
+ int size;
+ int base;
+ int prot;
+ int pid;
+
+ static const int sNumInts = 5;
+ static const int sNumFds = 1;
+ static const int sMagic = '_sgh';
+
+ sw_gralloc_handle_t() :
+ fd(-1), magic(sMagic), size(0), base(0), prot(0), pid(getpid())
+ {
+ version = sizeof(native_handle);
+ numInts = sNumInts;
+ numFds = sNumFds;
+ }
+ ~sw_gralloc_handle_t() {
+ magic = 0;
+ }
+
+ static int validate(const native_handle* h) {
+ const sw_gralloc_handle_t* hnd = (const sw_gralloc_handle_t*)h;
+ if (!h || h->version != sizeof(native_handle) ||
+ h->numInts != sNumInts || h->numFds != sNumFds ||
+ hnd->magic != sMagic)
+ {
+ return -EINVAL;
+ }
+ return 0;
+ }
+
+ static status_t alloc(uint32_t w, uint32_t h, int format,
+ int usage, buffer_handle_t* handle, int32_t* stride);
+ static status_t free(sw_gralloc_handle_t* hnd);
+ static status_t registerBuffer(sw_gralloc_handle_t* hnd);
+ static status_t unregisterBuffer(sw_gralloc_handle_t* hnd);
+ static status_t lock(sw_gralloc_handle_t* hnd, int usage,
+ int l, int t, int w, int h, void** vaddr);
+ static status_t unlock(sw_gralloc_handle_t* hnd);
+};
+
+/*****************************************************************************/
+
+}; // namespace android
+
+#endif /* ANDROID_UI_PRIVATE_SW_GRALLOC_HANDLE_H */