summaryrefslogtreecommitdiffstats
path: root/src/compiler/nir/nir_array.h
diff options
context:
space:
mode:
authorEmil Velikov <[email protected]>2016-01-18 12:54:03 +0200
committerEmil Velikov <[email protected]>2016-01-26 16:08:30 +0000
commita39a8fbbaa129f4e52f2a3ad2747182e9a74d910 (patch)
tree823e881d54c149cde315bb140e46a8b781cdccb7 /src/compiler/nir/nir_array.h
parentf694da80c75cb2a51d0af3b24d68aae9c53d61aa (diff)
nir: move to compiler/
Signed-off-by: Emil Velikov <[email protected]> Acked-by: Matt Turner <[email protected]> Acked-by: Jose Fonseca <[email protected]>
Diffstat (limited to 'src/compiler/nir/nir_array.h')
-rw-r--r--src/compiler/nir/nir_array.h96
1 files changed, 96 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_array.h b/src/compiler/nir/nir_array.h
new file mode 100644
index 00000000000..1db4e8cea36
--- /dev/null
+++ b/src/compiler/nir/nir_array.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright © 2015 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ * Jason Ekstrand ([email protected])
+ *
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+ void *mem_ctx;
+ size_t size;
+ size_t alloc;
+ void *data;
+} nir_array;
+
+static inline void
+nir_array_init(nir_array *arr, void *mem_ctx)
+{
+ arr->mem_ctx = mem_ctx;
+ arr->size = 0;
+ arr->alloc = 0;
+ arr->data = NULL;
+}
+
+static inline void
+nir_array_fini(nir_array *arr)
+{
+ if (arr->mem_ctx)
+ ralloc_free(arr->data);
+ else
+ free(arr->data);
+}
+
+#define NIR_ARRAY_INITIAL_SIZE 64
+
+/* Increments the size of the array by the given ammount and returns a
+ * pointer to the beginning of the newly added space.
+ */
+static inline void *
+nir_array_grow(nir_array *arr, size_t additional)
+{
+ size_t new_size = arr->size + additional;
+ if (new_size > arr->alloc) {
+ if (arr->alloc == 0)
+ arr->alloc = NIR_ARRAY_INITIAL_SIZE;
+
+ while (new_size > arr->alloc)
+ arr->alloc *= 2;
+
+ if (arr->mem_ctx)
+ arr->data = reralloc_size(arr->mem_ctx, arr->data, arr->alloc);
+ else
+ arr->data = realloc(arr->data, arr->alloc);
+ }
+
+ void *ptr = (void *)((char *)arr->data + arr->size);
+ arr->size = new_size;
+
+ return ptr;
+}
+
+#define nir_array_add(arr, type, elem) \
+ *(type *)nir_array_grow(arr, sizeof(type)) = (elem)
+
+#define nir_array_foreach(arr, type, elem) \
+ for (type *elem = (type *)(arr)->data; \
+ elem < (type *)((char *)(arr)->data + (arr)->size); elem++)
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif