GrGLPath::GrGLPath(GrGLGpu* gpu, const SkPath& origSkPath, const GrStrokeInfo& origStroke)
: INHERITED(gpu, origSkPath, origStroke),
fPathID(gpu->glPathRendering()->genPaths(1)) {
if (origSkPath.isEmpty()) {
InitPathObjectEmptyPath(gpu, fPathID);
fShouldStroke = false;
fShouldFill = false;
} else {
const SkPath* skPath = &origSkPath;
SkTLazy<SkPath> tmpPath;
const GrStrokeInfo* stroke = &origStroke;
GrStrokeInfo tmpStroke(SkStrokeRec::kFill_InitStyle);
if (stroke->isDashed()) {
// Skia stroking and NVPR stroking differ with respect to dashing
// pattern.
// Convert a dashing to either a stroke or a fill.
if (stroke->applyDashToPath(tmpPath.init(), &tmpStroke, *skPath)) {
skPath = tmpPath.get();
stroke = &tmpStroke;
}
}
bool didInit = false;
if (stroke->needToApply() && stroke->getCap() != SkPaint::kButt_Cap) {
// Skia stroking and NVPR stroking differ with respect to stroking
// end caps of empty subpaths.
// Convert stroke to fill if path contains empty subpaths.
didInit = InitPathObjectPathDataCheckingDegenerates(gpu, fPathID, *skPath);
if (!didInit) {
if (!tmpPath.isValid()) {
tmpPath.init();
}
SkAssertResult(stroke->applyToPath(tmpPath.get(), *skPath));
skPath = tmpPath.get();
tmpStroke.setFillStyle();
stroke = &tmpStroke;
}
}
if (!didInit) {
InitPathObjectPathData(gpu, fPathID, *skPath);
}
fShouldStroke = stroke->needToApply();
fShouldFill = stroke->isFillStyle() ||
stroke->getStyle() == SkStrokeRec::kStrokeAndFill_Style;
if (fShouldStroke) {
InitPathObjectStroke(gpu, fPathID, *stroke);
// FIXME: try to account for stroking, without rasterizing the stroke.
fBounds.outset(stroke->getWidth(), stroke->getWidth());
}
}
this->registerWithCache();
}
void GrBlurUtils::drawPathWithMaskFilter(GrContext* context,
GrDrawContext* drawContext,
const GrClip& clip,
const SkPath& origPath,
GrPaint* paint,
const SkMatrix& viewMatrix,
const SkMaskFilter* mf,
const SkPathEffect* pathEffect,
const GrStrokeInfo& origStrokeInfo,
bool pathIsMutable) {
SkPath* pathPtr = const_cast<SkPath*>(&origPath);
SkTLazy<SkPath> tmpPath;
GrStrokeInfo strokeInfo(origStrokeInfo);
if (!strokeInfo.isDashed() && pathEffect && pathEffect->filterPath(tmpPath.init(), *pathPtr,
&strokeInfo, nullptr)) {
pathPtr = tmpPath.get();
pathPtr->setIsVolatile(true);
pathIsMutable = true;
pathEffect = nullptr;
}
draw_path_with_mask_filter(context, drawContext, clip, paint, viewMatrix, mf, pathEffect,
strokeInfo, pathPtr, pathIsMutable);
}
GrGLPath::GrGLPath(GrGLGpu* gpu, const SkPath& origSkPath, const GrStrokeInfo& origStroke)
: INHERITED(gpu, origSkPath, origStroke),
fPathID(gpu->glPathRendering()->genPaths(1)) {
// Convert a dashing to either a stroke or a fill.
const SkPath* skPath = &origSkPath;
SkTLazy<SkPath> tmpPath;
const GrStrokeInfo* stroke = &origStroke;
GrStrokeInfo tmpStroke(SkStrokeRec::kFill_InitStyle);
if (stroke->isDashed()) {
if (stroke->applyDashToPath(tmpPath.init(), &tmpStroke, *skPath)) {
skPath = tmpPath.get();
stroke = &tmpStroke;
}
}
InitPathObject(gpu, fPathID, *skPath, *stroke);
fShouldStroke = stroke->needToApply();
fShouldFill = stroke->isFillStyle() ||
stroke->getStyle() == SkStrokeRec::kStrokeAndFill_Style;
if (fShouldStroke) {
// FIXME: try to account for stroking, without rasterizing the stroke.
fBounds.outset(stroke->getWidth(), stroke->getWidth());
}
this->registerWithCache();
}
void GrGLPathRange::onInitPath(int index, const SkPath& origSkPath) const {
GrGLGpu* gpu = static_cast<GrGLGpu*>(this->getGpu());
if (NULL == gpu) {
return;
}
// Make sure the path at this index hasn't been initted already.
SkDEBUGCODE(
GrGLboolean isPath;
GR_GL_CALL_RET(gpu->glInterface(), isPath, IsPath(fBasePathID + index)));
SkASSERT(GR_GL_FALSE == isPath);
const SkPath* skPath = &origSkPath;
SkTLazy<SkPath> tmpPath;
const GrStrokeInfo* stroke = &fStroke;
GrStrokeInfo tmpStroke(SkStrokeRec::kFill_InitStyle);
// Dashing must be applied to the path. However, if dashing is present,
// we must convert all the paths to fills. The GrStrokeInfo::applyDash leaves
// simple paths as strokes but converts other paths to fills.
// Thus we must stroke the strokes here, so that all paths in the
// path range are using the same style.
if (fStroke.isDashed()) {
if (!stroke->applyDashToPath(tmpPath.init(), &tmpStroke, *skPath)) {
return;
}
skPath = tmpPath.get();
stroke = &tmpStroke;
if (tmpStroke.needToApply()) {
if (!tmpStroke.applyToPath(tmpPath.get(), *tmpPath.get())) {
return;
}
tmpStroke.setFillStyle();
}
}
GrGLPath::InitPathObject(gpu, fBasePathID + index, *skPath, *stroke);
// TODO: Use a better approximation for the individual path sizes.
fGpuMemorySize += 100;
}
GrContext* GpuTest::GetContext() {
#if SK_SUPPORT_GPU
// preserve this order, we want gGrContext destroyed after gEGLContext
static SkTLazy<SkNativeGLContext> gGLContext;
static SkAutoTUnref<GrContext> gGrContext;
if (NULL == gGrContext.get()) {
gGLContext.init();
if (gGLContext.get()->init(800, 600)) {
GrPlatform3DContext ctx = reinterpret_cast<GrPlatform3DContext>(gGLContext.get()->gl());
gGrContext.reset(GrContext::Create(kOpenGL_Shaders_GrEngine, ctx));
}
}
if (gGLContext.get()) {
gGLContext.get()->makeCurrent();
}
return gGrContext.get();
#else
return NULL;
#endif
}
void GrDrawTarget::onDrawRect(const SkRect& rect,
const SkMatrix* matrix,
const SkRect* localRect,
const SkMatrix* localMatrix) {
GrDrawState::AutoViewMatrixRestore avmr;
if (NULL != matrix) {
avmr.set(this->drawState(), *matrix);
}
set_vertex_attributes(this->drawState(), NULL != localRect);
AutoReleaseGeometry geo(this, 4, 0);
if (!geo.succeeded()) {
GrPrintf("Failed to get space for vertices!\n");
return;
}
size_t vsize = this->drawState()->getVertexSize();
geo.positions()->setRectFan(rect.fLeft, rect.fTop, rect.fRight, rect.fBottom, vsize);
if (NULL != localRect) {
GrPoint* coords = GrTCast<GrPoint*>(GrTCast<intptr_t>(geo.vertices()) +
sizeof(GrPoint));
coords->setRectFan(localRect->fLeft, localRect->fTop,
localRect->fRight, localRect->fBottom,
vsize);
if (NULL != localMatrix) {
localMatrix->mapPointsWithStride(coords, vsize, 4);
}
}
SkTLazy<SkRect> bounds;
if (this->getDrawState().willEffectReadDstColor()) {
bounds.init();
this->getDrawState().getViewMatrix().mapRect(bounds.get(), rect);
}
this->drawNonIndexed(kTriangleFan_GrPrimitiveType, 0, 4, bounds.getMaybeNull());
}
static void draw_path_with_mask_filter(GrContext* context,
GrDrawContext* drawContext,
const GrClip& clip,
GrPaint* paint,
const SkMatrix& viewMatrix,
const SkMaskFilter* maskFilter,
const GrStyle& style,
const SkPath* path,
bool pathIsMutable) {
SkASSERT(maskFilter);
SkIRect clipBounds;
clip.getConservativeBounds(drawContext->width(), drawContext->height(), &clipBounds);
SkTLazy<SkPath> tmpPath;
SkStrokeRec::InitStyle fillOrHairline;
// We just fully apply the style here.
if (style.applies()) {
if (!style.applyToPath(tmpPath.init(), &fillOrHairline, *path,
GrStyle::MatrixToScaleFactor(viewMatrix))) {
return;
}
pathIsMutable = true;
path = tmpPath.get();
} else if (style.isSimpleHairline()) {
fillOrHairline = SkStrokeRec::kHairline_InitStyle;
} else {
SkASSERT(style.isSimpleFill());
fillOrHairline = SkStrokeRec::kFill_InitStyle;
}
// transform the path into device space
if (!viewMatrix.isIdentity()) {
SkPath* result;
if (pathIsMutable) {
result = const_cast<SkPath*>(path);
} else {
if (!tmpPath.isValid()) {
tmpPath.init();
}
result = tmpPath.get();
}
path->transform(viewMatrix, result);
path = result;
result->setIsVolatile(true);
pathIsMutable = true;
}
SkRect maskRect;
if (maskFilter->canFilterMaskGPU(SkRRect::MakeRect(path->getBounds()),
clipBounds,
viewMatrix,
&maskRect)) {
// This mask will ultimately be drawn as a non-AA rect (see draw_mask).
// Non-AA rects have a bad habit of snapping arbitrarily. Integerize here
// so the mask draws in a reproducible manner.
SkIRect finalIRect;
maskRect.roundOut(&finalIRect);
if (clip_bounds_quick_reject(clipBounds, finalIRect)) {
// clipped out
return;
}
if (maskFilter->directFilterMaskGPU(context->textureProvider(),
drawContext,
paint,
clip,
viewMatrix,
SkStrokeRec(fillOrHairline),
*path)) {
// the mask filter was able to draw itself directly, so there's nothing
// left to do.
return;
}
sk_sp<GrTexture> mask(create_mask_GPU(context,
finalIRect,
*path,
fillOrHairline,
paint->isAntiAlias(),
drawContext->numColorSamples()));
if (mask) {
GrTexture* filtered;
if (maskFilter->filterMaskGPU(mask.get(), viewMatrix, finalIRect, &filtered, true)) {
// filterMaskGPU gives us ownership of a ref to the result
SkAutoTUnref<GrTexture> atu(filtered);
if (draw_mask(drawContext, clip, viewMatrix, finalIRect, paint, filtered)) {
// This path is completely drawn
return;
}
}
}
}
sw_draw_with_mask_filter(drawContext, context->textureProvider(),
clip, viewMatrix, *path,
maskFilter, clipBounds, paint, fillOrHairline);
}
// "Interesting" fuzzer values.
static void test_linear_fuzzer(skiatest::Reporter*) {
static const SkColor gColors0[] = { 0x30303030, 0x30303030 };
static const SkColor gColors1[] = { 0x30303030, 0x30303030, 0x30303030 };
static const SkScalar gPos1[] = { 0, 0, 1 };
static const SkScalar gMatrix0[9] = {
6.40969056e-10f, 0 , 6.40969056e-10f,
0 , 4.42539023e-39f, 6.40969056e-10f,
0 , 0 , 1
};
static const SkScalar gMatrix1[9] = {
-2.75294113f , 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 6.40969056e-10f, -3.32810161e+24f,
6.40969056e-10f, 6.40969056e-10f, 0
};
static const SkScalar gMatrix2[9] = {
7.93481258e+17f, 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 6.40969056e-10f, 0.688235283f
};
static const SkScalar gMatrix3[9] = {
1.89180674e+11f, 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 11276.0469f , 8.12524808e+20f
};
static const struct {
SkPoint fPts[2];
const SkColor* fColors;
const SkScalar* fPos;
int fCount;
SkTileMode fTileMode;
uint32_t fFlags;
const SkScalar* fLocalMatrix;
const SkScalar* fGlobalMatrix;
} gConfigs[] = {
{
{{0, -2.752941f}, {0, 0}},
gColors0,
nullptr,
SK_ARRAY_COUNT(gColors0),
SkTileMode::kClamp,
0,
gMatrix0,
nullptr
},
{
{{4.42539023e-39f, -4.42539023e-39f}, {9.78041162e-15f, 4.42539023e-39f}},
gColors1,
gPos1,
SK_ARRAY_COUNT(gColors1),
SkTileMode::kClamp,
0,
nullptr,
gMatrix1
},
{
{{4.42539023e-39f, 6.40969056e-10f}, {6.40969056e-10f, 1.49237238e-19f}},
gColors1,
gPos1,
SK_ARRAY_COUNT(gColors1),
SkTileMode::kClamp,
0,
nullptr,
gMatrix2
},
{
{{6.40969056e-10f, 6.40969056e-10f}, {6.40969056e-10f, -0.688235283f}},
gColors0,
nullptr,
SK_ARRAY_COUNT(gColors0),
SkTileMode::kClamp,
0,
gMatrix3,
nullptr
},
};
sk_sp<SkColorSpace> srgb = SkColorSpace::MakeSRGB();
SkColorSpace* colorSpaces[] = {
nullptr, // hits the legacy gradient impl
srgb.get(), // triggers 4f/raster-pipeline
};
SkPaint paint;
for (auto colorSpace : colorSpaces) {
sk_sp<SkSurface> surface = SkSurface::MakeRaster(SkImageInfo::Make(100, 100,
kN32_SkColorType,
kPremul_SkAlphaType,
sk_ref_sp(colorSpace)));
SkCanvas* canvas = surface->getCanvas();
for (const auto& config : gConfigs) {
SkAutoCanvasRestore acr(canvas, false);
SkTLazy<SkMatrix> localMatrix;
if (config.fLocalMatrix) {
localMatrix.init();
localMatrix.get()->set9(config.fLocalMatrix);
}
paint.setShader(SkGradientShader::MakeLinear(config.fPts,
config.fColors,
config.fPos,
config.fCount,
config.fTileMode,
config.fFlags,
localMatrix.getMaybeNull()));
if (config.fGlobalMatrix) {
SkMatrix m;
m.set9(config.fGlobalMatrix);
canvas->save();
canvas->concat(m);
}
canvas->drawPaint(paint);
}
}
}
