d3dx9: Don't take the fastpath when converting between texture formats of different type.

dlls/d3dx9_36/surface.c

@@ -1525,7 +1525,6 @@ void copy_pixels(const BYTE *src, UINT src_row_pitch, UINT src_slice_pitch,
  * Copies the source buffer to the destination buffer, performing
  * any necessary format conversion and color keying.
  * Pixels outsize the source rect are blacked out.
- * Works only for ARGB formats with 1 - 4 bytes per pixel.
  */
 void convert_argb_pixels(const BYTE *src, UINT src_row_pitch, UINT src_slice_pitch, const struct volume *src_size,
         const struct pixel_format_desc *src_format, BYTE *dst, UINT dst_row_pitch, UINT dst_slice_pitch,
@@ -1562,6 +1561,7 @@ void convert_argb_pixels(const BYTE *src, UINT src_row_pitch, UINT src_slice_pit
 
             for (x = 0; x < min_width; x++) {
                 if (!src_format->to_rgba && !dst_format->from_rgba
+                        && src_format->type == dst_format->type
                         && src_format->bytes_per_pixel <= 4 && dst_format->bytes_per_pixel <= 4)
                 {
                     DWORD val;
@@ -1628,7 +1628,6 @@ void convert_argb_pixels(const BYTE *src, UINT src_row_pitch, UINT src_slice_pit
  * Copies the source buffer to the destination buffer, performing
  * any necessary format conversion, color keying and stretching
  * using a point filter.
- * Works only for ARGB formats with 1 - 4 bytes per pixel.
  */
 void point_filter_argb_pixels(const BYTE *src, UINT src_row_pitch, UINT src_slice_pitch, const struct volume *src_size,
         const struct pixel_format_desc *src_format, BYTE *dst, UINT dst_row_pitch, UINT dst_slice_pitch,
@@ -1665,6 +1664,7 @@ void point_filter_argb_pixels(const BYTE *src, UINT src_row_pitch, UINT src_slic
                 const BYTE *src_ptr = src_row_ptr + (x * src_size->width / dst_size->width) * src_format->bytes_per_pixel;
 
                 if (!src_format->to_rgba && !dst_format->from_rgba
+                        && src_format->type == dst_format->type
                         && src_format->bytes_per_pixel <= 4 && dst_format->bytes_per_pixel <= 4)
                 {
                     DWORD val;