ui/gfx/x/x11_types.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_GFX_X_X11_UTIL_H_
   6 #define UI_GFX_X_X11_UTIL_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "ui/gfx/gfx_export.h"
  11
  12 typedef unsigned long XAtom;
  13 typedef unsigned long XID;
  14 typedef struct _XImage XImage;
  15 typedef struct _XGC *GC;
  16 typedef struct _XDisplay XDisplay;
  17
  18 extern "C" {
  19 int XFree(void*);
  20 }
  21
  22 namespace gfx {
  23
  24 template <class T, class R, R (*F)(T*)>
  25 struct XObjectDeleter {
  26   inline void operator()(void* ptr) const { F(static_cast<T*>(ptr)); }
  27 };
  28
  29 template <class T, class D = XObjectDeleter<void, int, XFree>>
  30 using XScopedPtr = scoped_ptr<T, D>;
  31
  32 // TODO(oshima|evan): This assume there is one display and doesn't work
  33 // undef multiple displays/monitor environment. Remove this and change the
  34 // chrome codebase to get the display from window.
  35 GFX_EXPORT XDisplay* GetXDisplay();
  36
  37 // This opens a new X11 XDisplay*, taking command line arguments into account.
  38 GFX_EXPORT XDisplay* OpenNewXDisplay();
  39
  40 // Return the number of bits-per-pixel for a pixmap of the given depth
  41 GFX_EXPORT int BitsPerPixelForPixmapDepth(XDisplay* display, int depth);
  42
  43 // Draws ARGB data on the given pixmap using the given GC, converting to the
  44 // server side visual depth as needed.  Destination is assumed to be the same
  45 // dimensions as |data| or larger.  |data| is also assumed to be in row order
  46 // with each line being exactly |width| * 4 bytes long.
  47 GFX_EXPORT void PutARGBImage(XDisplay* display,
  48                              void* visual, int depth,
  49                              XID pixmap, void* pixmap_gc,
  50                              const uint8* data,
  51                              int width, int height);
  52
  53 // Same as above only more general:
  54 // - |data_width| and |data_height| refer to the data image
  55 // - |src_x|, |src_y|, |copy_width| and |copy_height| define source region
  56 // - |dst_x|, |dst_y|, |copy_width| and |copy_height| define destination region
  57 GFX_EXPORT void PutARGBImage(XDisplay* display,
  58                              void* visual, int depth,
  59                              XID pixmap, void* pixmap_gc,
  60                              const uint8* data,
  61                              int data_width, int data_height,
  62                              int src_x, int src_y,
  63                              int dst_x, int dst_y,
  64                              int copy_width, int copy_height);
  65
  66 }  // namespace gfx
  67
  68 #endif  // UI_GFX_X_X11_UTIL_H_
  69