mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
120 lines
3.2 KiB
C++
120 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* 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 MOZILLA_GFX_HELPERSSKIA_H_
|
|
#define MOZILLA_GFX_HELPERSSKIA_H_
|
|
|
|
#include "2D.h"
|
|
#include "skia/SkCanvas.h"
|
|
#include "skia/SkDashPathEffect.h"
|
|
#include "mozilla/Assertions.h"
|
|
|
|
namespace mozilla {
|
|
namespace gfx {
|
|
|
|
static inline SkBitmap::Config
|
|
GfxFormatToSkiaConfig(SurfaceFormat format)
|
|
{
|
|
switch (format)
|
|
{
|
|
case FORMAT_B8G8R8A8:
|
|
return SkBitmap::kARGB_8888_Config;
|
|
case FORMAT_B8G8R8X8:
|
|
// We probably need to do something here.
|
|
return SkBitmap::kARGB_8888_Config;
|
|
case FORMAT_R5G6B5:
|
|
return SkBitmap::kRGB_565_Config;
|
|
case FORMAT_A8:
|
|
return SkBitmap::kA8_Config;
|
|
|
|
}
|
|
|
|
return SkBitmap::kARGB_8888_Config;
|
|
}
|
|
|
|
static inline void
|
|
GfxMatrixToSkiaMatrix(const Matrix& mat, SkMatrix& retval)
|
|
{
|
|
retval.setAll(SkFloatToScalar(mat._11), SkFloatToScalar(mat._21), SkFloatToScalar(mat._31),
|
|
SkFloatToScalar(mat._12), SkFloatToScalar(mat._22), SkFloatToScalar(mat._32),
|
|
0, 0, SK_Scalar1);
|
|
}
|
|
|
|
static inline SkPaint::Cap
|
|
CapStyleToSkiaCap(CapStyle aCap)
|
|
{
|
|
switch (aCap)
|
|
{
|
|
case CAP_BUTT:
|
|
return SkPaint::kButt_Cap;
|
|
case CAP_ROUND:
|
|
return SkPaint::kRound_Cap;
|
|
case CAP_SQUARE:
|
|
return SkPaint::kSquare_Cap;
|
|
}
|
|
return SkPaint::kDefault_Cap;
|
|
}
|
|
|
|
static inline SkPaint::Join
|
|
JoinStyleToSkiaJoin(JoinStyle aJoin)
|
|
{
|
|
switch (aJoin)
|
|
{
|
|
case JOIN_BEVEL:
|
|
return SkPaint::kBevel_Join;
|
|
case JOIN_ROUND:
|
|
return SkPaint::kRound_Join;
|
|
case JOIN_MITER:
|
|
case JOIN_MITER_OR_BEVEL:
|
|
return SkPaint::kMiter_Join;
|
|
}
|
|
return SkPaint::kDefault_Join;
|
|
}
|
|
|
|
static inline bool
|
|
StrokeOptionsToPaint(SkPaint& aPaint, const StrokeOptions &aOptions)
|
|
{
|
|
// Skia renders 0 width strokes with a width of 1 (and in black),
|
|
// so we should just skip the draw call entirely.
|
|
if (!aOptions.mLineWidth) {
|
|
return false;
|
|
}
|
|
aPaint.setStrokeWidth(SkFloatToScalar(aOptions.mLineWidth));
|
|
aPaint.setStrokeMiter(SkFloatToScalar(aOptions.mMiterLimit));
|
|
aPaint.setStrokeCap(CapStyleToSkiaCap(aOptions.mLineCap));
|
|
aPaint.setStrokeJoin(JoinStyleToSkiaJoin(aOptions.mLineJoin));
|
|
|
|
if (aOptions.mDashLength > 0) {
|
|
// Skia only supports dash arrays that are multiples of 2.
|
|
uint32_t dashCount;
|
|
|
|
if (aOptions.mDashLength % 2 == 0) {
|
|
dashCount = aOptions.mDashLength;
|
|
} else {
|
|
dashCount = aOptions.mDashLength * 2;
|
|
}
|
|
|
|
std::vector<SkScalar> pattern;
|
|
pattern.resize(dashCount);
|
|
|
|
for (uint32_t i = 0; i < dashCount; i++) {
|
|
pattern[i] = SkFloatToScalar(aOptions.mDashPattern[i % aOptions.mDashLength]);
|
|
}
|
|
|
|
SkDashPathEffect* dash = new SkDashPathEffect(&pattern.front(),
|
|
dashCount,
|
|
SkFloatToScalar(aOptions.mDashOffset));
|
|
SkSafeUnref(aPaint.setPathEffect(dash));
|
|
}
|
|
|
|
aPaint.setStyle(SkPaint::kStroke_Style);
|
|
return true;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
#endif /* MOZILLA_GFX_HELPERSSKIA_H_ */
|