1 files changed, 52 insertions, 0 deletions
diff --git a/vp8/common/textblit.c b/vp8/common/textblit.c
new file mode 100644
index 000000000..a45937b12
--- /dev/null
+++ b/vp8/common/textblit.c
@@ -0,0 +1,52 @@
+/*
+ *  Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license and patent
+ *  grant that can be found in the LICENSE file in the root of the source
+ *  tree. All contributing project authors may be found in the AUTHORS
+ *  file in the root of the source tree.
+ */
+
+
+
+
+void vp8_blit_text(const char *msg, unsigned char *address, const int pitch)
+{
+    int letter_bitmap;
+    unsigned char *output_pos = address;
+    int colpos;
+    const int font[] =
+    {
+        0x0, 0x5C00, 0x8020, 0xAFABEA, 0xD7EC0, 0x1111111, 0x1855740, 0x18000,
+        0x45C0, 0x74400, 0x51140, 0x23880, 0xC4000, 0x21080, 0x80000, 0x111110,
+        0xE9D72E, 0x87E40, 0x12AD732, 0xAAD62A, 0x4F94C4, 0x4D6B7, 0x456AA,
+        0x3E8423, 0xAAD6AA, 0xAAD6A2, 0x2800, 0x2A00, 0x8A880, 0x52940, 0x22A20,
+        0x15422, 0x6AD62E, 0x1E4A53E, 0xAAD6BF, 0x8C62E, 0xE8C63F, 0x118D6BF,
+        0x1094BF, 0xCAC62E, 0x1F2109F, 0x118FE31, 0xF8C628, 0x8A89F, 0x108421F,
+        0x1F1105F, 0x1F4105F, 0xE8C62E, 0x2294BF, 0x164C62E, 0x12694BF, 0x8AD6A2,
+        0x10FC21, 0x1F8421F, 0x744107, 0xF8220F, 0x1151151, 0x117041, 0x119D731,
+        0x47E0, 0x1041041, 0xFC400, 0x10440, 0x1084210, 0x820
+    };
+    colpos = 0;
+
+    while (msg[colpos] != 0)
+    {
+        char letter = msg[colpos];
+        int fontcol, fontrow;
+
+        if (letter <= 'Z' && letter >= ' ')
+            letter_bitmap = font[letter-' '];
+        else if (letter <= 'z' && letter >= 'a')
+            letter_bitmap = font[letter-'a'+'A' - ' '];
+        else
+            letter_bitmap = font[0];
+
+        for (fontcol = 6; fontcol >= 0 ; fontcol--)
+            for (fontrow = 0; fontrow < 5; fontrow++)
+                output_pos[fontrow *pitch + fontcol] =
+                    ((letter_bitmap >> (fontcol * 5)) & (1 << fontrow) ? 255 : 0);
+
+        output_pos += 7;
+        colpos++;
+    }
+}