gecko/gfx/thebes/gfxTypes.h
Nicholas Nethercote d238d3b67f Bug 1209812 (part 2) - Remove gfxImageFormat::A1. r=nical.
This value is never written anywhere, so it's not needed, and gfx::Surface
doesn't have an equivalent.
2015-09-28 12:07:44 -07:00

107 lines
2.8 KiB
C

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef GFX_TYPES_H
#define GFX_TYPES_H
#include <stdint.h>
typedef struct _cairo_surface cairo_surface_t;
typedef struct _cairo_user_data_key cairo_user_data_key_t;
typedef void (*thebes_destroy_func_t) (void *data);
/**
* Currently needs to be 'double' for Cairo compatibility. Could
* become 'float', perhaps, in some configurations.
*/
typedef double gfxFloat;
/**
* Priority of a line break opportunity.
*
* eNoBreak The line has no break opportunities
* eWordWrapBreak The line has a break opportunity only within a word. With
* word-wrap: break-word we will break at this point only if
* there are no other break opportunities in the line.
* eNormalBreak The line has a break opportunity determined by the standard
* line-breaking algorithm.
*
* Future expansion: split eNormalBreak into multiple priorities, e.g.
* punctuation break and whitespace break (bug 389710).
* As and when we implement it, text-wrap: unrestricted will
* mean that priorities are ignored and all line-break
* opportunities are equal.
*
* @see gfxTextRun::BreakAndMeasureText
* @see nsLineLayout::NotifyOptionalBreakPosition
*/
enum class gfxBreakPriority {
eNoBreak = 0,
eWordWrapBreak,
eNormalBreak
};
/**
* The format for an image surface. For all formats with alpha data, 0
* means transparent, 1 or 255 means fully opaque.
*/
enum class gfxImageFormat {
ARGB32, ///< ARGB data in native endianness, using premultiplied alpha
RGB24, ///< xRGB data in native endianness
A8, ///< Only an alpha channel
RGB16_565, ///< RGB_565 data in native endianness
Unknown
};
// XXX: temporary
// This works because the gfxImageFormat enum is defined so as to match the
// _cairo_format enum.
#define gfxCairoFormatToImageFormat(aFormat) \
((gfxImageFormat)aFormat)
// XXX: temporary
// This works because the gfxImageFormat enum is defined so as to match the
// _cairo_format enum.
#define gfxImageFormatToCairoFormat(aFormat) \
((cairo_format_t)aFormat)
enum class gfxSurfaceType {
Image,
PDF,
PS,
Xlib,
Xcb,
Glitz, // unused, but needed for cairo parity
Quartz,
Win32,
BeOS,
DirectFB, // unused, but needed for cairo parity
SVG,
OS2,
Win32Printing,
QuartzImage,
Script,
QPainter,
Recording,
VG,
GL,
DRM,
Tee,
XML,
Skia,
Subsurface,
Max
};
enum class gfxContentType {
COLOR = 0x1000,
ALPHA = 0x2000,
COLOR_ALPHA = 0x3000,
SENTINEL = 0xffff
};
#endif /* GFX_TYPES_H */