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-rw-r--r--src/egl/main/eglarray.c39
1 files changed, 20 insertions, 19 deletions
diff --git a/src/egl/main/eglarray.c b/src/egl/main/eglarray.c
index d686fa162d5..fe2f1a7f32f 100644
--- a/src/egl/main/eglarray.c
+++ b/src/egl/main/eglarray.c
@@ -118,38 +118,39 @@ _eglFindArray(_EGLArray *array, void *elem)
/**
- * Filter an array and return the filtered data. The returned data pointer
- * should be freed.
+ * Filter an array and return the number of filtered elements.
*/
-void **
-_eglFilterArray(_EGLArray *array, EGLint *size,
+EGLint
+_eglFilterArray(_EGLArray *array, void **data, EGLint size,
_EGLArrayForEach filter, void *filter_data)
{
- void **data;
EGLint count = 0, i;
- if (!array) {
- *size = 0;
- return malloc(0);
- }
-
- data = malloc(array->Size * sizeof(array->Elements[0]));
- if (!data)
- return NULL;
+ if (!array)
+ return 0;
if (filter) {
for (i = 0; i < array->Size; i++) {
- if (filter(array->Elements[i], filter_data))
- data[count++] = array->Elements[i];
+ if (filter(array->Elements[i], filter_data)) {
+ if (data && count < size)
+ data[count] = array->Elements[i];
+ count++;
+ }
+ if (data && count >= size)
+ break;
}
}
else {
- memcpy(data, array->Elements, array->Size * sizeof(array->Elements[0]));
+ if (data) {
+ count = (size < array->Size) ? size : array->Size;
+ memcpy(data, array->Elements, count * sizeof(array->Elements[0]));
+ }
+ else {
+ count = array->Size;
+ }
}
- *size = count;
-
- return data;
+ return count;
}