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Diffstat (limited to 'core/fxge/skia/fx_skia_device.cpp')
-rw-r--r--core/fxge/skia/fx_skia_device.cpp106
1 files changed, 52 insertions, 54 deletions
diff --git a/core/fxge/skia/fx_skia_device.cpp b/core/fxge/skia/fx_skia_device.cpp
index acebf35eb8..a06eac80b4 100644
--- a/core/fxge/skia/fx_skia_device.cpp
+++ b/core/fxge/skia/fx_skia_device.cpp
@@ -32,6 +32,16 @@ static void DebugShowSkiaPath(const SkPath& path) {
#endif // SHOW_SKIA_PATH
}
+static void DebugShowCanvasMatrix(const SkCanvas* canvas) {
+#if SHOW_SKIA_PATH
+ SkMatrix matrix = canvas->getTotalMatrix();
+ SkScalar m[9];
+ matrix.get9(m);
+ printf("(%g,%g,%g) (%g,%g,%g) (%g,%g,%g)\n", m[0], m[1], m[2], m[3], m[4], m[5], m[6],
+ m[7], m[8]);
+#endif // SHOW_SKIA_PATH
+}
+
#if DRAW_SKIA_CLIP
static SkPaint DebugClipPaint() {
@@ -62,8 +72,7 @@ static void DebugDrawSkiaClipPath(SkCanvas* canvas, const SkPath& path) {}
#undef SHOW_SKIA_PATH
#undef DRAW_SKIA_CLIP
-static SkPath BuildPath(const CFX_PathData* pPathData,
- const CFX_Matrix* pObject2Device) {
+static SkPath BuildPath(const CFX_PathData* pPathData) {
SkPath skPath;
const CFX_PathData* pFPath = pPathData;
int nPoints = pFPath->GetPointCount();
@@ -71,8 +80,6 @@ static SkPath BuildPath(const CFX_PathData* pPathData,
for (int i = 0; i < nPoints; i++) {
FX_FLOAT x = pPoints[i].m_PointX;
FX_FLOAT y = pPoints[i].m_PointY;
- if (pObject2Device)
- pObject2Device->Transform(x, y);
int point_type = pPoints[i].m_Flag & FXPT_TYPE;
if (point_type == FXPT_MOVETO) {
skPath.moveTo(x, y);
@@ -81,10 +88,6 @@ static SkPath BuildPath(const CFX_PathData* pPathData,
} else if (point_type == FXPT_BEZIERTO) {
FX_FLOAT x2 = pPoints[i + 1].m_PointX, y2 = pPoints[i + 1].m_PointY;
FX_FLOAT x3 = pPoints[i + 2].m_PointX, y3 = pPoints[i + 2].m_PointY;
- if (pObject2Device) {
- pObject2Device->Transform(x2, y2);
- pObject2Device->Transform(x3, y3);
- }
skPath.cubicTo(x, y, x2, y2, x3, y3);
i += 2;
}
@@ -96,7 +99,8 @@ static SkPath BuildPath(const CFX_PathData* pPathData,
// convert a stroking path to scanlines
void CFX_SkiaDeviceDriver::PaintStroke(SkPaint* spaint,
- const CFX_GraphStateData* pGraphState) {
+ const CFX_GraphStateData* pGraphState,
+ const SkMatrix& matrix) {
SkPaint::Cap cap;
switch (pGraphState->m_LineCap) {
case CFX_GraphStateData::LineCapRound:
@@ -121,8 +125,15 @@ void CFX_SkiaDeviceDriver::PaintStroke(SkPaint* spaint,
join = SkPaint::kMiter_Join;
break;
}
- FX_FLOAT width = pGraphState->m_LineWidth;
-
+ SkMatrix inverse;
+ if (!matrix.invert(&inverse))
+ return; // give up if the matrix is degenerate, and not invertable
+ inverse.set(SkMatrix::kMTransX, 0);
+ inverse.set(SkMatrix::kMTransY, 0);
+ SkVector deviceUnits[2] = {{0, 1}, {1, 0}};
+ inverse.mapPoints(deviceUnits, SK_ARRAY_COUNT(deviceUnits));
+ FX_FLOAT width = SkTMax(pGraphState->m_LineWidth,
+ SkTMin(deviceUnits[0].length(), deviceUnits[1].length()));
if (pGraphState->m_DashArray) {
int count = (pGraphState->m_DashCount + 1) / 2;
SkScalar* intervals = FX_Alloc2D(SkScalar, count, sizeof(SkScalar));
@@ -192,6 +203,19 @@ CFX_SkiaDeviceDriver::~CFX_SkiaDeviceDriver() {
delete m_pAggDriver;
}
+static SkMatrix ToSkMatrix(const CFX_Matrix& m) {
+ SkMatrix skMatrix;
+ skMatrix.setAll(m.a, m.b, m.e, m.c, m.d, m.f, 0, 0, 1);
+ return skMatrix;
+}
+
+// use when pdf's y-axis points up insead of down
+static SkMatrix ToFlippedSkMatrix(const CFX_Matrix& m) {
+ SkMatrix skMatrix;
+ skMatrix.setAll(m.a, m.b, m.e, -m.c, -m.d, m.f, 0, 0, 1);
+ return skMatrix;
+}
+
FX_BOOL CFX_SkiaDeviceDriver::DrawDeviceText(int nChars,
const FXTEXT_CHARPOS* pCharPos,
CFX_Font* pFont,
@@ -210,10 +234,7 @@ FX_BOOL CFX_SkiaDeviceDriver::DrawDeviceText(int nChars,
paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
paint.setTextSize(font_size);
m_pCanvas->save();
- SkMatrix skMatrix;
- const CFX_Matrix& m = *pObject2Device;
- // note that PDF's y-axis goes up; Skia's y-axis goes down
- skMatrix.setAll(m.a, m.b, m.e, -m.c, -m.d, m.f, 0, 0, 1);
+ SkMatrix skMatrix = ToFlippedSkMatrix(*pObject2Device);
m_pCanvas->concat(skMatrix);
for (int index = 0; index < nChars; ++index) {
const FXTEXT_CHARPOS& cp = pCharPos[index];
@@ -248,24 +269,14 @@ int CFX_SkiaDeviceDriver::GetDeviceCaps(int caps_id) {
void CFX_SkiaDeviceDriver::SaveState() {
m_pCanvas->save();
- if (m_pAggDriver)
- m_pAggDriver->SaveState();
}
void CFX_SkiaDeviceDriver::RestoreState(FX_BOOL bKeepSaved) {
- if (m_pAggDriver)
- m_pAggDriver->RestoreState(bKeepSaved);
m_pCanvas->restore();
if (bKeepSaved)
m_pCanvas->save();
}
-void CFX_SkiaDeviceDriver::SetClipMask(
- agg::rasterizer_scanline_aa& rasterizer) {
- if (m_pAggDriver)
- m_pAggDriver->SetClipMask(rasterizer);
-}
-
FX_BOOL CFX_SkiaDeviceDriver::SetClip_PathFill(
const CFX_PathData* pPathData, // path info
const CFX_Matrix* pObject2Device, // flips object's y-axis
@@ -285,10 +296,12 @@ FX_BOOL CFX_SkiaDeviceDriver::SetClip_PathFill(
return TRUE;
}
}
- SkPath skClipPath = BuildPath(pPathData, pObject2Device);
+ SkPath skClipPath = BuildPath(pPathData);
skClipPath.setFillType((fill_mode & 3) == FXFILL_WINDING
? SkPath::kWinding_FillType
: SkPath::kEvenOdd_FillType);
+ SkMatrix skMatrix = ToSkMatrix(*pObject2Device);
+ skClipPath.transform(skMatrix);
DebugShowSkiaPath(skClipPath);
DebugDrawSkiaClipPath(m_pCanvas, skClipPath);
m_pCanvas->clipPath(skClipPath);
@@ -302,31 +315,20 @@ FX_BOOL CFX_SkiaDeviceDriver::SetClip_PathStroke(
const CFX_GraphStateData* pGraphState // graphic state, for pen attributes
) {
// build path data
- SkPath skPath = BuildPath(pPathData, NULL);
+ SkPath skPath = BuildPath(pPathData);
skPath.setFillType(SkPath::kWinding_FillType);
+ SkMatrix skMatrix = ToSkMatrix(*pObject2Device);
SkPaint spaint;
- PaintStroke(&spaint, pGraphState);
+ PaintStroke(&spaint, pGraphState, skMatrix);
SkPath dst_path;
spaint.getFillPath(skPath, &dst_path);
+ dst_path.transform(skMatrix);
DebugDrawSkiaClipPath(m_pCanvas, dst_path);
m_pCanvas->clipPath(dst_path);
return TRUE;
}
-FX_BOOL CFX_SkiaDeviceDriver::RenderRasterizer(
- agg::rasterizer_scanline_aa& rasterizer,
- FX_DWORD color,
- FX_BOOL bFullCover,
- FX_BOOL bGroupKnockout,
- int alpha_flag,
- void* pIccTransform) {
- return m_pAggDriver &&
- m_pAggDriver->RenderRasterizer(rasterizer, color, bFullCover,
- bGroupKnockout, alpha_flag,
- pIccTransform);
-}
-
FX_BOOL CFX_SkiaDeviceDriver::DrawPath(
const CFX_PathData* pPathData, // path info
const CFX_Matrix* pObject2Device, // optional transformation
@@ -340,9 +342,12 @@ FX_BOOL CFX_SkiaDeviceDriver::DrawPath(
SkIRect rect;
rect.set(0, 0, GetDeviceCaps(FXDC_PIXEL_WIDTH),
GetDeviceCaps(FXDC_PIXEL_HEIGHT));
- SkPath skPath = BuildPath(pPathData, pObject2Device);
+ SkPath skPath = BuildPath(pPathData);
SkPaint spaint;
spaint.setAntiAlias(true);
+ m_pCanvas->save();
+ SkMatrix skMatrix = ToSkMatrix(*pObject2Device);
+ m_pCanvas->concat(skMatrix);
if ((fill_mode & 3) && fill_color) {
skPath.setFillType((fill_mode & 3) == FXFILL_WINDING
? SkPath::kWinding_FillType
@@ -358,22 +363,15 @@ FX_BOOL CFX_SkiaDeviceDriver::DrawPath(
if (pGraphState && stroke_alpha) {
spaint.setColor(stroke_color);
- PaintStroke(&spaint, pGraphState);
+ PaintStroke(&spaint, pGraphState, skMatrix);
+ DebugShowSkiaPath(skPath);
+ DebugShowCanvasMatrix(m_pCanvas);
m_pCanvas->drawPath(skPath, spaint);
}
-
+ m_pCanvas->restore();
return TRUE;
}
-FX_BOOL CFX_SkiaDeviceDriver::SetPixel(int x,
- int y,
- FX_DWORD color,
- int alpha_flag,
- void* pIccTransform) {
- return m_pAggDriver &&
- m_pAggDriver->SetPixel(x, y, color, alpha_flag, pIccTransform);
-}
-
FX_BOOL CFX_SkiaDeviceDriver::FillRect(const FX_RECT* pRect,
FX_DWORD fill_color,
int alpha_flag,
@@ -514,7 +512,7 @@ FX_BOOL CFX_SkiaDeviceDriver::StartDIBits(const CFX_DIBSource* pSource,
m_pCanvas->concat(skMatrix);
SkPaint paint;
paint.setAntiAlias(true);
- paint.setFilterQuality(kLow_SkFilterQuality);
+ paint.setFilterQuality(kHigh_SkFilterQuality);
m_pCanvas->drawBitmap(skBitmap, 0, 0, &paint);
m_pCanvas->restore();
return TRUE;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 17:02:04 +0000