add a8r8g8b8_to_yuvalp_box_neon.h

module/neon/a8r8g8b8_to_yuvalp_box_neon.c

@@ -46,7 +46,7 @@ const int16x8_t g_cw21  = {  21,  21,  21,  21,  21,  21,  21,  21 };
    address s8 should be aligned on 16 bytes, will be slower if not
    width must be multiple of 8 and > 0
    height must be > 0 */
-void
+int
 a8r8g8b8_to_yuvalp_box_neon(const uint8_t *s8, int src_stride,
                             uint8_t *d8, int dst_stride,
                             int width, int height)

module/neon/a8r8g8b8_to_yuvalp_box_neon.h

@@ -0,0 +1,32 @@
+/*
+Copyright 2024 Jay Sorg
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice 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
+OPEN GROUP 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.
+
+NEON SIMD a8r8g8b8_to_yuvalp
+
+*/
+
+#ifndef __FUNCS_NEON_H
+#define __FUNCS_NEON_H
+
+int
+a8r8g8b8_to_yuvalp_box_neon(const uint8_t *s8, int src_stride,
+                            uint8_t *d8, int dst_stride,
+                            int width, int height);
+
+#endif