bool SkMaskFilter::filterPath(const SkPath& devPath, const SkMatrix& matrix,
const SkRegion& clip, SkBounder* bounder,
SkBlitter* blitter)
{
SkMask srcM, dstM;
if (!SkDraw::DrawToMask(devPath, &clip.getBounds(), this, &matrix, &srcM,
SkMask::kComputeBoundsAndRenderImage_CreateMode))
{
return false;
}
SkAutoMaskImage autoSrc(&srcM, false);
if (!this->filterMask(&dstM, srcM, matrix, NULL))
return false;
SkAutoMaskImage autoDst(&dstM, false);
SkRegion::Cliperator clipper(clip, dstM.fBounds);
if (!clipper.done() && (bounder == NULL || bounder->doIRect(dstM.fBounds)))
{
const SkIRect& cr = clipper.rect();
do {
blitter->blitMask(dstM, cr);
clipper.next();
} while (!clipper.done());
}
return true;
}
bool SkMaskFilterBase::filterPath(const SkPath& devPath, const SkMatrix& matrix,
const SkRasterClip& clip, SkBlitter* blitter,
SkStrokeRec::InitStyle style) const {
SkRect rects[2];
int rectCount = 0;
if (SkStrokeRec::kFill_InitStyle == style) {
rectCount = countNestedRects(devPath, rects);
}
if (rectCount > 0) {
NinePatch patch;
switch (this->filterRectsToNine(rects, rectCount, matrix, clip.getBounds(), &patch)) {
case kFalse_FilterReturn:
SkASSERT(nullptr == patch.fMask.fImage);
return false;
case kTrue_FilterReturn:
draw_nine(patch.fMask, patch.fOuterRect, patch.fCenter, 1 == rectCount, clip,
blitter);
return true;
case kUnimplemented_FilterReturn:
SkASSERT(nullptr == patch.fMask.fImage);
// fall through
break;
}
}
SkMask srcM, dstM;
if (!SkDraw::DrawToMask(devPath, &clip.getBounds(), this, &matrix, &srcM,
SkMask::kComputeBoundsAndRenderImage_CreateMode,
style)) {
return false;
}
SkAutoMaskFreeImage autoSrc(srcM.fImage);
if (!this->filterMask(&dstM, srcM, matrix, nullptr)) {
return false;
}
SkAutoMaskFreeImage autoDst(dstM.fImage);
// if we get here, we need to (possibly) resolve the clip and blitter
SkAAClipBlitterWrapper wrapper(clip, blitter);
blitter = wrapper.getBlitter();
SkRegion::Cliperator clipper(wrapper.getRgn(), dstM.fBounds);
if (!clipper.done()) {
const SkIRect& cr = clipper.rect();
do {
blitter->blitMask(dstM, cr);
clipper.next();
} while (!clipper.done());
}
return true;
}
static bool draw_with_mask_filter(GrDrawContext* drawContext,
GrTextureProvider* textureProvider,
GrRenderTarget* rt,
const GrClip& clipData,
const SkMatrix& viewMatrix,
const SkPath& devPath,
SkMaskFilter* filter,
const SkIRect& clipBounds,
GrPaint* grp,
SkPaint::Style style) {
SkMask srcM, dstM;
if (!SkDraw::DrawToMask(devPath, &clipBounds, filter, &viewMatrix, &srcM,
SkMask::kComputeBoundsAndRenderImage_CreateMode, style)) {
return false;
}
SkAutoMaskFreeImage autoSrc(srcM.fImage);
if (!filter->filterMask(&dstM, srcM, viewMatrix, nullptr)) {
return false;
}
// this will free-up dstM when we're done (allocated in filterMask())
SkAutoMaskFreeImage autoDst(dstM.fImage);
if (clip_bounds_quick_reject(clipBounds, dstM.fBounds)) {
return false;
}
// we now have a device-aligned 8bit mask in dstM, ready to be drawn using
// the current clip (and identity matrix) and GrPaint settings
GrSurfaceDesc desc;
desc.fWidth = dstM.fBounds.width();
desc.fHeight = dstM.fBounds.height();
desc.fConfig = kAlpha_8_GrPixelConfig;
SkAutoTUnref<GrTexture> texture(textureProvider->createApproxTexture(desc));
if (!texture) {
return false;
}
texture->writePixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
dstM.fImage, dstM.fRowBytes);
SkRect maskRect = SkRect::Make(dstM.fBounds);
return draw_mask(drawContext, rt, clipData, viewMatrix, maskRect, grp, texture);
}
static void mapPoints(JNIEnv* env, jobject clazz, jlong matrixHandle,
jfloatArray dst, jint dstIndex,
jfloatArray src, jint srcIndex,
jint ptCount, jboolean isPts) {
SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
SkASSERT(ptCount >= 0);
AutoJavaFloatArray autoSrc(env, src, srcIndex + (ptCount << 1), kRO_JNIAccess);
AutoJavaFloatArray autoDst(env, dst, dstIndex + (ptCount << 1), kRW_JNIAccess);
float* srcArray = autoSrc.ptr() + srcIndex;
float* dstArray = autoDst.ptr() + dstIndex;
#ifdef SK_SCALAR_IS_FLOAT
if (isPts)
matrix->mapPoints((SkPoint*)dstArray, (const SkPoint*)srcArray,
ptCount);
else
matrix->mapVectors((SkVector*)dstArray, (const SkVector*)srcArray,
ptCount);
#else
SkASSERT(false);
#endif
}
static jboolean setPolyToPoly(JNIEnv* env, jobject clazz, jlong matrixHandle,
jfloatArray jsrc, jint srcIndex,
jfloatArray jdst, jint dstIndex, jint ptCount) {
SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
SkASSERT(srcIndex >= 0);
SkASSERT(dstIndex >= 0);
SkASSERT((unsigned)ptCount <= 4);
AutoJavaFloatArray autoSrc(env, jsrc, srcIndex + (ptCount << 1), kRO_JNIAccess);
AutoJavaFloatArray autoDst(env, jdst, dstIndex + (ptCount << 1), kRW_JNIAccess);
float* src = autoSrc.ptr() + srcIndex;
float* dst = autoDst.ptr() + dstIndex;
bool result;
#ifdef SK_SCALAR_IS_FLOAT
result = matrix->setPolyToPoly((const SkPoint*)src, (const SkPoint*)dst,
ptCount);
#else
SkASSERT(false);
#endif
return result ? JNI_TRUE : JNI_FALSE;
}