1 files changed, 154 insertions, 0 deletions
diff --git a/source/blender/io/avi/intern/avi_rgb.c b/source/blender/io/avi/intern/avi_rgb.c
new file mode 100644
index 00000000000..d449556e79b
--- /dev/null
+++ b/source/blender/io/avi/intern/avi_rgb.c
@@ -0,0 +1,154 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup avi
+ *
+ * This is external code. Converts rgb-type avi-s.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "MEM_guardedalloc.h"
+
+#include "AVI_avi.h"
+#include "avi_rgb.h"
+
+#include "IMB_imbuf.h"
+
+/* implementation */
+
+void *avi_converter_from_avi_rgb(AviMovie *movie, int stream, unsigned char *buffer, size_t *size)
+{
+  unsigned char *buf;
+  AviBitmapInfoHeader *bi;
+  short bits = 32;
+
+  (void)size; /* unused */
+
+  bi = (AviBitmapInfoHeader *)movie->streams[stream].sf;
+  if (bi) {
+    bits = bi->BitCount;
+  }
+
+  if (bits == 16) {
+    unsigned short *pxl;
+    unsigned char *to;
+#ifdef __BIG_ENDIAN__
+    unsigned char *pxla;
+#endif
+
+    buf = imb_alloc_pixels(
+        movie->header->Height, movie->header->Width, 3, sizeof(unsigned char), "fromavirgbbuf");
+
+    if (buf) {
+      size_t y = movie->header->Height;
+      to = buf;
+
+      while (y--) {
+        pxl = (unsigned short *)(buffer + y * movie->header->Width * 2);
+
+#ifdef __BIG_ENDIAN__
+        pxla = (unsigned char *)pxl;
+#endif
+
+        size_t x = movie->header->Width;
+        while (x--) {
+#ifdef __BIG_ENDIAN__
+          int i = pxla[0];
+          pxla[0] = pxla[1];
+          pxla[1] = i;
+
+          pxla += 2;
+#endif
+
+          *(to++) = ((*pxl >> 10) & 0x1f) * 8;
+          *(to++) = ((*pxl >> 5) & 0x1f) * 8;
+          *(to++) = (*pxl & 0x1f) * 8;
+          pxl++;
+        }
+      }
+    }
+
+    MEM_freeN(buffer);
+
+    return buf;
+  }
+  else {
+    buf = imb_alloc_pixels(
+        movie->header->Height, movie->header->Width, 3, sizeof(unsigned char), "fromavirgbbuf");
+
+    if (buf) {
+      size_t rowstride = movie->header->Width * 3;
+      if ((bits != 16) && (movie->header->Width % 2)) {
+        rowstride++;
+      }
+
+      for (size_t y = 0; y < movie->header->Height; y++) {
+        memcpy(&buf[y * movie->header->Width * 3],
+               &buffer[((movie->header->Height - 1) - y) * rowstride],
+               movie->header->Width * 3);
+      }
+
+      for (size_t y = 0; y < (size_t)movie->header->Height * (size_t)movie->header->Width * 3;
+           y += 3) {
+        int i = buf[y];
+        buf[y] = buf[y + 2];
+        buf[y + 2] = i;
+      }
+    }
+
+    MEM_freeN(buffer);
+
+    return buf;
+  }
+}
+
+void *avi_converter_to_avi_rgb(AviMovie *movie, int stream, unsigned char *buffer, size_t *size)
+{
+  unsigned char *buf;
+
+  (void)stream; /* unused */
+
+  size_t rowstride = movie->header->Width * 3;
+  /* AVI files has uncompressed lines 4-byte aligned */
+  rowstride = (rowstride + 3) & ~3;
+
+  *size = movie->header->Height * rowstride;
+  buf = MEM_mallocN(*size, "toavirgbbuf");
+
+  for (size_t y = 0; y < movie->header->Height; y++) {
+    memcpy(&buf[y * rowstride],
+           &buffer[((movie->header->Height - 1) - y) * movie->header->Width * 3],
+           movie->header->Width * 3);
+  }
+
+  for (size_t y = 0; y < movie->header->Height; y++) {
+    for (size_t x = 0; x < movie->header->Width * 3; x += 3) {
+      int i = buf[y * rowstride + x];
+      buf[y * rowstride + x] = buf[y * rowstride + x + 2];
+      buf[y * rowstride + x + 2] = i;
+    }
+  }
+
+  MEM_freeN(buffer);
+
+  return buf;
+}