зеркало из https://github.com/mozilla/pjs.git
139 строки
4.4 KiB
C++
139 строки
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Corporation code.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Matt Woodrow <mwoodrow@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef MOZILLA_GFX_HELPERSSKIA_H_
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#define MOZILLA_GFX_HELPERSSKIA_H_
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#include "2D.h"
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#include "skia/SkCanvas.h"
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#include "skia/SkDashPathEffect.h"
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namespace mozilla {
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namespace gfx {
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static inline SkBitmap::Config
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GfxFormatToSkiaConfig(SurfaceFormat format)
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{
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switch (format)
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{
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case FORMAT_B8G8R8A8:
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return SkBitmap::kARGB_8888_Config;
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case FORMAT_B8G8R8X8:
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// We probably need to do something here.
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return SkBitmap::kARGB_8888_Config;
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case FORMAT_R5G6B5:
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return SkBitmap::kRGB_565_Config;
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case FORMAT_A8:
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return SkBitmap::kA8_Config;
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}
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return SkBitmap::kARGB_8888_Config;
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}
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static inline void
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GfxMatrixToSkiaMatrix(const Matrix& mat, SkMatrix& retval)
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{
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retval.setAll(SkFloatToScalar(mat._11), SkFloatToScalar(mat._21), SkFloatToScalar(mat._31),
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SkFloatToScalar(mat._12), SkFloatToScalar(mat._22), SkFloatToScalar(mat._32),
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0, 0, SK_Scalar1);
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}
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static inline SkPaint::Cap
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CapStyleToSkiaCap(CapStyle aCap)
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{
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switch (aCap)
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{
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case CAP_BUTT:
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return SkPaint::kButt_Cap;
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case CAP_ROUND:
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return SkPaint::kRound_Cap;
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case CAP_SQUARE:
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return SkPaint::kSquare_Cap;
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}
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return SkPaint::kDefault_Cap;
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}
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static inline SkPaint::Join
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JoinStyleToSkiaJoin(JoinStyle aJoin)
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{
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switch (aJoin)
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{
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case JOIN_BEVEL:
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return SkPaint::kBevel_Join;
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case JOIN_ROUND:
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return SkPaint::kRound_Join;
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case JOIN_MITER:
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case JOIN_MITER_OR_BEVEL:
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return SkPaint::kMiter_Join;
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}
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return SkPaint::kDefault_Join;
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}
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static inline bool
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StrokeOptionsToPaint(SkPaint& aPaint, const StrokeOptions &aOptions)
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{
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// Skia rendewrs 0 width strokes with a width of 1 (and in black),
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// so we should just skip the draw call entirely.
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if (!aOptions.mLineWidth) {
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return false;
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}
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aPaint.setStrokeWidth(SkFloatToScalar(aOptions.mLineWidth));
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aPaint.setStrokeMiter(SkFloatToScalar(aOptions.mMiterLimit));
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aPaint.setStrokeCap(CapStyleToSkiaCap(aOptions.mLineCap));
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aPaint.setStrokeJoin(JoinStyleToSkiaJoin(aOptions.mLineJoin));
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if (aOptions.mDashLength > 1) {
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std::vector<SkScalar> pattern;
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pattern.resize(aOptions.mDashLength);
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for (uint32_t i = 0; i < aOptions.mDashLength; i++) {
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pattern[i] = SkFloatToScalar(aOptions.mDashPattern[i]);
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}
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SkDashPathEffect* dash = new SkDashPathEffect(&pattern.front(),
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aOptions.mDashLength,
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SkFloatToScalar(aOptions.mDashOffset));
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SkSafeUnref(aPaint.setPathEffect(dash));
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}
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aPaint.setStyle(SkPaint::kStroke_Style);
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return true;
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}
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}
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}
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#endif /* MOZILLA_GFX_HELPERSSKIA_H_ */
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