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-rw-r--r--radeon/bof.c477
1 files changed, 477 insertions, 0 deletions
diff --git a/radeon/bof.c b/radeon/bof.c
new file mode 100644
index 0000000..0598cc6
--- /dev/null
+++ b/radeon/bof.c
@@ -0,0 +1,477 @@
+/*
+ * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
+ *
+ * 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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:
+ * Jerome Glisse
+ */
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include "bof.h"
+
+/*
+ * helpers
+ */
+static int bof_entry_grow(bof_t *bof)
+{
+ bof_t **array;
+
+ if (bof->array_size < bof->nentry)
+ return 0;
+ array = realloc(bof->array, (bof->nentry + 16) * sizeof(void*));
+ if (array == NULL)
+ return -ENOMEM;
+ bof->array = array;
+ bof->nentry += 16;
+ return 0;
+}
+
+/*
+ * object
+ */
+bof_t *bof_object(void)
+{
+ bof_t *object;
+
+ object = calloc(1, sizeof(bof_t));
+ if (object == NULL)
+ return NULL;
+ object->refcount = 1;
+ object->type = BOF_TYPE_OBJECT;
+ object->size = 12;
+ return object;
+}
+
+bof_t *bof_object_get(bof_t *object, const char *keyname)
+{
+ unsigned i;
+
+ for (i = 0; i < object->array_size; i += 2) {
+ if (!strcmp(object->array[i]->value, keyname)) {
+ return object->array[i + 1];
+ }
+ }
+ return NULL;
+}
+
+int bof_object_set(bof_t *object, const char *keyname, bof_t *value)
+{
+ bof_t *key;
+ int r;
+
+ if (object->type != BOF_TYPE_OBJECT)
+ return -EINVAL;
+ r = bof_entry_grow(object);
+ if (r)
+ return r;
+ key = bof_string(keyname);
+ if (key == NULL)
+ return -ENOMEM;
+ object->array[object->array_size++] = key;
+ object->array[object->array_size++] = value;
+ object->size += value->size;
+ object->size += key->size;
+ bof_incref(value);
+ return 0;
+}
+
+/*
+ * array
+ */
+bof_t *bof_array(void)
+{
+ bof_t *array = bof_object();
+
+ if (array == NULL)
+ return NULL;
+ array->type = BOF_TYPE_ARRAY;
+ array->size = 12;
+ return array;
+}
+
+int bof_array_append(bof_t *array, bof_t *value)
+{
+ int r;
+ if (array->type != BOF_TYPE_ARRAY)
+ return -EINVAL;
+ r = bof_entry_grow(array);
+ if (r)
+ return r;
+ array->array[array->array_size++] = value;
+ array->size += value->size;
+ bof_incref(value);
+ return 0;
+}
+
+bof_t *bof_array_get(bof_t *bof, unsigned i)
+{
+ if (!bof_is_array(bof) || i >= bof->array_size)
+ return NULL;
+ return bof->array[i];
+}
+
+unsigned bof_array_size(bof_t *bof)
+{
+ if (!bof_is_array(bof))
+ return 0;
+ return bof->array_size;
+}
+
+/*
+ * blob
+ */
+bof_t *bof_blob(unsigned size, void *value)
+{
+ bof_t *blob = bof_object();
+
+ if (blob == NULL)
+ return NULL;
+ blob->type = BOF_TYPE_BLOB;
+ blob->value = calloc(1, size);
+ if (blob->value == NULL) {
+ bof_decref(blob);
+ return NULL;
+ }
+ blob->size = size;
+ memcpy(blob->value, value, size);
+ blob->size += 12;
+ return blob;
+}
+
+unsigned bof_blob_size(bof_t *bof)
+{
+ if (!bof_is_blob(bof))
+ return 0;
+ return bof->size - 12;
+}
+
+void *bof_blob_value(bof_t *bof)
+{
+ if (!bof_is_blob(bof))
+ return NULL;
+ return bof->value;
+}
+
+/*
+ * string
+ */
+bof_t *bof_string(const char *value)
+{
+ bof_t *string = bof_object();
+
+ if (string == NULL)
+ return NULL;
+ string->type = BOF_TYPE_STRING;
+ string->size = strlen(value) + 1;
+ string->value = calloc(1, string->size);
+ if (string->value == NULL) {
+ bof_decref(string);
+ return NULL;
+ }
+ strcpy(string->value, value);
+ string->size += 12;
+ return string;
+}
+
+/*
+ * int32
+ */
+bof_t *bof_int32(int32_t value)
+{
+ bof_t *int32 = bof_object();
+
+ if (int32 == NULL)
+ return NULL;
+ int32->type = BOF_TYPE_INT32;
+ int32->size = 4;
+ int32->value = calloc(1, int32->size);
+ if (int32->value == NULL) {
+ bof_decref(int32);
+ return NULL;
+ }
+ memcpy(int32->value, &value, 4);
+ int32->size += 12;
+ return int32;
+}
+
+int32_t bof_int32_value(bof_t *bof)
+{
+ return *((uint32_t*)bof->value);
+}
+
+/*
+ * common
+ */
+static void bof_indent(int level)
+{
+ int i;
+
+ for (i = 0; i < level; i++)
+ fprintf(stderr, " ");
+}
+
+static void bof_print_bof(bof_t *bof, int level, int entry)
+{
+ bof_indent(level);
+ if (bof == NULL) {
+ fprintf(stderr, "--NULL-- for entry %d\n", entry);
+ return;
+ }
+ switch (bof->type) {
+ case BOF_TYPE_STRING:
+ fprintf(stderr, "%p string [%s %d]\n", bof, (char*)bof->value, bof->size);
+ break;
+ case BOF_TYPE_INT32:
+ fprintf(stderr, "%p int32 [%d %d]\n", bof, *(int*)bof->value, bof->size);
+ break;
+ case BOF_TYPE_BLOB:
+ fprintf(stderr, "%p blob [%d]\n", bof, bof->size);
+ break;
+ case BOF_TYPE_NULL:
+ fprintf(stderr, "%p null [%d]\n", bof, bof->size);
+ break;
+ case BOF_TYPE_OBJECT:
+ fprintf(stderr, "%p object [%d %d]\n", bof, bof->array_size / 2, bof->size);
+ break;
+ case BOF_TYPE_ARRAY:
+ fprintf(stderr, "%p array [%d %d]\n", bof, bof->array_size, bof->size);
+ break;
+ default:
+ fprintf(stderr, "%p unknown [%d]\n", bof, bof->type);
+ return;
+ }
+}
+
+static void bof_print_rec(bof_t *bof, int level, int entry)
+{
+ unsigned i;
+
+ bof_print_bof(bof, level, entry);
+ for (i = 0; i < bof->array_size; i++) {
+ bof_print_rec(bof->array[i], level + 2, i);
+ }
+}
+
+void bof_print(bof_t *bof)
+{
+ bof_print_rec(bof, 0, 0);
+}
+
+static int bof_read(bof_t *root, FILE *file, long end, int level)
+{
+ bof_t *bof = NULL;
+ int r;
+
+ if (ftell(file) >= end) {
+ return 0;
+ }
+ r = bof_entry_grow(root);
+ if (r)
+ return r;
+ bof = bof_object();
+ if (bof == NULL)
+ return -ENOMEM;
+ bof->offset = ftell(file);
+ r = fread(&bof->type, 4, 1, file);
+ if (r != 1)
+ goto out_err;
+ r = fread(&bof->size, 4, 1, file);
+ if (r != 1)
+ goto out_err;
+ r = fread(&bof->array_size, 4, 1, file);
+ if (r != 1)
+ goto out_err;
+ switch (bof->type) {
+ case BOF_TYPE_STRING:
+ case BOF_TYPE_INT32:
+ case BOF_TYPE_BLOB:
+ bof->value = calloc(1, bof->size - 12);
+ if (bof->value == NULL) {
+ goto out_err;
+ }
+ r = fread(bof->value, bof->size - 12, 1, file);
+ if (r != 1) {
+ fprintf(stderr, "error reading %d\n", bof->size - 12);
+ goto out_err;
+ }
+ break;
+ case BOF_TYPE_NULL:
+ return 0;
+ case BOF_TYPE_OBJECT:
+ case BOF_TYPE_ARRAY:
+ r = bof_read(bof, file, bof->offset + bof->size, level + 2);
+ if (r)
+ goto out_err;
+ break;
+ default:
+ fprintf(stderr, "invalid type %d\n", bof->type);
+ goto out_err;
+ }
+ root->array[root->centry++] = bof;
+ return bof_read(root, file, end, level);
+out_err:
+ bof_decref(bof);
+ return -EINVAL;
+}
+
+bof_t *bof_load_file(const char *filename)
+{
+ bof_t *root = bof_object();
+ int r;
+
+ if (root == NULL) {
+ fprintf(stderr, "%s failed to create root object\n", __func__);
+ return NULL;
+ }
+ root->file = fopen(filename, "r");
+ if (root->file == NULL)
+ goto out_err;
+ r = fseek(root->file, 0L, SEEK_SET);
+ if (r) {
+ fprintf(stderr, "%s failed to seek into file %s\n", __func__, filename);
+ goto out_err;
+ }
+ root->offset = ftell(root->file);
+ r = fread(&root->type, 4, 1, root->file);
+ if (r != 1)
+ goto out_err;
+ r = fread(&root->size, 4, 1, root->file);
+ if (r != 1)
+ goto out_err;
+ r = fread(&root->array_size, 4, 1, root->file);
+ if (r != 1)
+ goto out_err;
+ r = bof_read(root, root->file, root->offset + root->size, 2);
+ if (r)
+ goto out_err;
+ return root;
+out_err:
+ bof_decref(root);
+ return NULL;
+}
+
+void bof_incref(bof_t *bof)
+{
+ bof->refcount++;
+}
+
+void bof_decref(bof_t *bof)
+{
+ unsigned i;
+
+ if (bof == NULL)
+ return;
+ if (--bof->refcount > 0)
+ return;
+ for (i = 0; i < bof->array_size; i++) {
+ bof_decref(bof->array[i]);
+ bof->array[i] = NULL;
+ }
+ bof->array_size = 0;
+ if (bof->file) {
+ fclose(bof->file);
+ bof->file = NULL;
+ }
+ free(bof->array);
+ free(bof->value);
+ free(bof);
+}
+
+static int bof_file_write(bof_t *bof, FILE *file)
+{
+ unsigned i;
+ int r;
+
+ r = fwrite(&bof->type, 4, 1, file);
+ if (r != 1)
+ return -EINVAL;
+ r = fwrite(&bof->size, 4, 1, file);
+ if (r != 1)
+ return -EINVAL;
+ r = fwrite(&bof->array_size, 4, 1, file);
+ if (r != 1)
+ return -EINVAL;
+ switch (bof->type) {
+ case BOF_TYPE_NULL:
+ if (bof->size)
+ return -EINVAL;
+ break;
+ case BOF_TYPE_STRING:
+ case BOF_TYPE_INT32:
+ case BOF_TYPE_BLOB:
+ r = fwrite(bof->value, bof->size - 12, 1, file);
+ if (r != 1)
+ return -EINVAL;
+ break;
+ case BOF_TYPE_OBJECT:
+ case BOF_TYPE_ARRAY:
+ for (i = 0; i < bof->array_size; i++) {
+ r = bof_file_write(bof->array[i], file);
+ if (r)
+ return r;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+int bof_dump_file(bof_t *bof, const char *filename)
+{
+ unsigned i;
+ int r = 0;
+
+ if (bof->file) {
+ fclose(bof->file);
+ bof->file = NULL;
+ }
+ bof->file = fopen(filename, "w");
+ if (bof->file == NULL) {
+ fprintf(stderr, "%s failed to open file %s\n", __func__, filename);
+ r = -EINVAL;
+ goto out_err;
+ }
+ r = fseek(bof->file, 0L, SEEK_SET);
+ if (r) {
+ fprintf(stderr, "%s failed to seek into file %s\n", __func__, filename);
+ goto out_err;
+ }
+ r = fwrite(&bof->type, 4, 1, bof->file);
+ if (r != 1)
+ goto out_err;
+ r = fwrite(&bof->size, 4, 1, bof->file);
+ if (r != 1)
+ goto out_err;
+ r = fwrite(&bof->array_size, 4, 1, bof->file);
+ if (r != 1)
+ goto out_err;
+ for (i = 0; i < bof->array_size; i++) {
+ r = bof_file_write(bof->array[i], bof->file);
+ if (r)
+ return r;
+ }
+out_err:
+ fclose(bof->file);
+ bof->file = NULL;
+ return r;
+}
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