1 files changed, 163 insertions, 0 deletions
diff --git a/vp8/decoder/xprintf.c b/vp8/decoder/xprintf.c
new file mode 100644
index 000000000..cb2221c15
--- /dev/null
+++ b/vp8/decoder/xprintf.c
@@ -0,0 +1,163 @@
+/*
+ *  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.
+ */
+
+
+/****************************************************************************
+*
+*   Module Title :     xprintf.cpp
+*
+*   Description  :     Display a printf style message on the current video frame.
+*
+****************************************************************************/
+
+/****************************************************************************
+*  Header Files
+****************************************************************************/
+
+#include <stdio.h>
+#include <stdarg.h>
+#ifdef _WIN32_WCE
+#include <windows.h>
+#endif
+#include "xprintf.h"
+
+/****************************************************************************
+ *
+ *  ROUTINE       : xprintf
+ *
+ *  INPUTS        : const PB_INSTANCE *ppbi : Pointer to decoder instance.
+ *                  long n_pixel             : Offset into buffer to write text.
+ *                  const char *format      : Format string for print.
+ *                  ...                     : Variable length argument list.
+ *
+ *  OUTPUTS       : None.
+ *
+ *  RETURNS       : int: Size (in bytes) of the formatted text.
+ *
+ *  FUNCTION      : Display a printf style message on the current video frame.
+ *
+ *  SPECIAL NOTES : None.
+ *
+ ****************************************************************************/
+int onyx_xprintf(unsigned char *ppbuffer, long n_pixel, long n_size, long n_stride, const char *format, ...)
+{
+    BOOL b_rc;
+    va_list arglist;
+    HFONT hfont, hfonto;
+
+    int rc = 0;
+    char sz_formatted[256] = "";
+    unsigned char *p_dest = &ppbuffer[n_pixel];
+
+#ifdef _WIN32_WCE
+    //  Set up temporary bitmap
+    HDC hdc_memory   = NULL;
+    HBITMAP hbm_temp = NULL;
+    HBITMAP hbm_orig = NULL;
+
+    RECT rect;
+
+    //  Copy bitmap to video frame
+    long x;
+    long y;
+
+    //  Format text
+    va_start(arglist, format);
+    _vsnprintf(sz_formatted, sizeof(sz_formatted), format, arglist);
+    va_end(arglist);
+
+    rect.left   = 0;
+    rect.top    = 0;
+    rect.right  = 8 * strlen(sz_formatted);
+    rect.bottom = 8;
+
+    hdc_memory = create_compatible_dc(NULL);
+
+    if (hdc_memory == NULL)
+        goto Exit;
+
+    hbm_temp = create_bitmap(rect.right, rect.bottom, 1, 1, NULL);
+
+    if (hbm_temp == NULL)
+        goto Exit;
+
+    hbm_orig = (HBITMAP)(select_object(hdc_memory, hbm_temp));
+
+    if (!hbm_orig)
+        goto Exit;
+
+    //  Write text into bitmap
+    //  font?
+    hfont = create_font(8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, VARIABLE_PITCH | FF_SWISS, "");
+
+    if (hfont == NULL)
+        goto Exit;
+
+    hfonto = (HFONT)(select_object(hdc_memory, hbm_temp));
+
+    if (!hfonto)
+        goto Exit;
+
+    select_object(hdc_memory, hfont);
+    set_text_color(hdc_memory, 1);
+    set_bk_color(hdc_memory, 0);
+    set_bk_mode(hdc_memory, TRANSPARENT);
+
+    b_rc = bit_blt(hdc_memory, rect.left, rect.top, rect.right, rect.bottom, hdc_memory, rect.left, rect.top, BLACKNESS);
+
+    if (!b_rc)
+        goto Exit;
+
+    b_rc = ext_text_out(hdc_memory, 0, 0, ETO_CLIPPED, &rect, sz_formatted, strlen(sz_formatted), NULL);
+
+    if (!b_rc)
+        goto Exit;
+
+    for (y = rect.top; y < rect.bottom; ++y)
+    {
+        for (x = rect.left; x < rect.right; ++x)
+        {
+            if (get_pixel(hdc_memory, x, rect.bottom - 1 - y))
+                p_dest[x] = 255;
+        }
+
+        p_dest += n_stride;
+    }
+
+    rc = strlen(sz_formatted);
+
+Exit:
+
+    if (hbm_temp != NULL)
+    {
+        if (hbm_orig != NULL)
+        {
+            select_object(hdc_memory, hbm_orig);
+        }
+
+        delete_object(hbm_temp);
+    }
+
+    if (hfont != NULL)
+    {
+        if (hfonto != NULL)
+            select_object(hdc_memory, hfonto);
+
+        delete_object(hfont);
+    }
+
+    if (hdc_memory != NULL)
+        delete_dc(hdc_memory);
+
+    hdc_memory = 0;
+
+#endif
+
+    return rc;
+}