The Tor Browser: gfx/thebes/gfxTypes.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-

     2  * This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #ifndef GFX_TYPES_H

     7 #define GFX_TYPES_H

     9 #include <stdint.h>

    10 #include "mozilla/TypedEnum.h"

    12 typedef struct _cairo_surface cairo_surface_t;

    13 typedef struct _cairo_user_data_key cairo_user_data_key_t;

    15 typedef void (*thebes_destroy_func_t) (void *data);

    17 /**

    18  * Currently needs to be 'double' for Cairo compatibility. Could

    19  * become 'float', perhaps, in some configurations.

    20  */

    21 typedef double gfxFloat;

    23 /**

    24  * Priority of a line break opportunity.

    25  *

    26  * eNoBreak       The line has no break opportunities

    27  * eWordWrapBreak The line has a break opportunity only within a word. With

    28  *                word-wrap: break-word we will break at this point only if

    29  *                there are no other break opportunities in the line.

    30  * eNormalBreak   The line has a break opportunity determined by the standard

    31  *                line-breaking algorithm.

    32  *

    33  * Future expansion: split eNormalBreak into multiple priorities, e.g.

    34  *                    punctuation break and whitespace break (bug 389710).

    35  *                   As and when we implement it, text-wrap: unrestricted will

    36  *                    mean that priorities are ignored and all line-break

    37  *                    opportunities are equal.

    38  *

    39  * @see gfxTextRun::BreakAndMeasureText

    40  * @see nsLineLayout::NotifyOptionalBreakPosition

    41  */

    42 MOZ_BEGIN_ENUM_CLASS(gfxBreakPriority)

    43   eNoBreak       = 0,

    44   eWordWrapBreak,

    45   eNormalBreak

    46 MOZ_END_ENUM_CLASS(gfxBreakPriority)

    48 /**

    49   * The format for an image surface. For all formats with alpha data, 0

    50   * means transparent, 1 or 255 means fully opaque.

    51   */

    52 MOZ_BEGIN_ENUM_CLASS(gfxImageFormat)

    53   ARGB32, ///< ARGB data in native endianness, using premultiplied alpha

    54   RGB24,  ///< xRGB data in native endianness

    55   A8,     ///< Only an alpha channel

    56   A1,     ///< Packed transparency information (one byte refers to 8 pixels)

    57   RGB16_565,  ///< RGB_565 data in native endianness

    58   Unknown

    59 MOZ_END_ENUM_CLASS(gfxImageFormat)

    61 MOZ_BEGIN_ENUM_CLASS(gfxSurfaceType)

    62   Image,

    63   PDF,

    64   PS,

    65   Xlib,

    66   Xcb,

    67   Glitz,           // unused, but needed for cairo parity

    68   Quartz,

    69   Win32,

    70   BeOS,

    71   DirectFB,        // unused, but needed for cairo parity

    72   SVG,

    73   OS2,

    74   Win32Printing,

    75   QuartzImage,

    76   Script,

    77   QPainter,

    78   Recording,

    79   VG,

    80   GL,

    81   DRM,

    82   Tee,

    83   XML,

    84   Skia,

    85   Subsurface,

    86   D2D,

    87   Max

    88 MOZ_END_ENUM_CLASS(gfxSurfaceType)

    90 MOZ_BEGIN_ENUM_CLASS(gfxContentType)

    91   COLOR       = 0x1000,

    92   ALPHA       = 0x2000,

    93   COLOR_ALPHA = 0x3000,

    94   SENTINEL    = 0xffff

    95 MOZ_END_ENUM_CLASS(gfxContentType)

    97 /**

    98   * The memory used by a gfxASurface (as reported by KnownMemoryUsed()) can

    99   * either live in this process's heap, in this process but outside the

   100   * heap, or in another process altogether.

   101   */

   102 MOZ_BEGIN_ENUM_CLASS(gfxMemoryLocation)

   103   IN_PROCESS_HEAP,

   104   IN_PROCESS_NONHEAP,

   105   OUT_OF_PROCESS

   106 MOZ_END_ENUM_CLASS(gfxMemoryLocation)

   108 #endif /* GFX_TYPES_H */

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