1 files changed, 79 insertions, 0 deletions
diff --git a/libswscale/arm/swscale_unscaled.c b/libswscale/arm/swscale_unscaled.c
new file mode 100644
index 0000000..04be762
--- /dev/null
+++ b/libswscale/arm/swscale_unscaled.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2013 Xiaolei Yu <dreifachstein@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libswscale/swscale.h"
+#include "libswscale/swscale_internal.h"
+#include "libavutil/arm/cpu.h"
+
+extern void rgbx_to_nv12_neon_32(const uint8_t *src, uint8_t *y, uint8_t *chroma,
+                int width, int height,
+                int y_stride, int c_stride, int src_stride,
+                int32_t coeff_tbl[9]);
+
+extern void rgbx_to_nv12_neon_16(const uint8_t *src, uint8_t *y, uint8_t *chroma,
+                int width, int height,
+                int y_stride, int c_stride, int src_stride,
+                int32_t coeff_tbl[9]);
+
+static int rgbx_to_nv12_neon_32_wrapper(SwsContext *context, const uint8_t *src[],
+                        int srcStride[], int srcSliceY, int srcSliceH,
+                        uint8_t *dst[], int dstStride[]) {
+
+    rgbx_to_nv12_neon_32(src[0] + srcSliceY * srcStride[0],
+            dst[0] + srcSliceY * dstStride[0],
+            dst[1] + (srcSliceY / 2) * dstStride[1],
+            context->srcW, srcSliceH,
+            dstStride[0], dstStride[1], srcStride[0],
+            context->input_rgb2yuv_table);
+
+    return 0;
+}
+
+static int rgbx_to_nv12_neon_16_wrapper(SwsContext *context, const uint8_t *src[],
+                        int srcStride[], int srcSliceY, int srcSliceH,
+                        uint8_t *dst[], int dstStride[]) {
+
+    rgbx_to_nv12_neon_16(src[0] + srcSliceY * srcStride[0],
+            dst[0] + srcSliceY * dstStride[0],
+            dst[1] + (srcSliceY / 2) * dstStride[1],
+            context->srcW, srcSliceH,
+            dstStride[0], dstStride[1], srcStride[0],
+            context->input_rgb2yuv_table);
+
+    return 0;
+}
+
+static void get_unscaled_swscale_neon(SwsContext *c) {
+    int accurate_rnd = c->flags & SWS_ACCURATE_RND;
+    if (c->srcFormat == AV_PIX_FMT_RGBA
+            && c->dstFormat == AV_PIX_FMT_NV12
+            && (c->srcW >= 16)) {
+        c->swscale = accurate_rnd ? rgbx_to_nv12_neon_32_wrapper
+                        : rgbx_to_nv12_neon_16_wrapper;
+    }
+}
+
+void ff_get_unscaled_swscale_arm(SwsContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+    if (have_neon(cpu_flags))
+        get_unscaled_swscale_neon(c);
+}