SkIRect SkComposeImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm,
MapDirection direction) const {
SkImageFilter* outer = this->getInput(0);
SkImageFilter* inner = this->getInput(1);
return outer->filterBounds(inner->filterBounds(src, ctm, direction), ctm, direction);
}
bool SkComposeImageFilter::onFilterBounds(const SkIRect& src,
const SkMatrix& ctm,
SkIRect* dst) const {
SkImageFilter* outer = getInput(0);
SkImageFilter* inner = getInput(1);
SkIRect tmp;
return inner->filterBounds(src, ctm, &tmp) && outer->filterBounds(tmp, ctm, dst);
}
bool SkMergeImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm,
SkIRect* dst) {
if (fCount < 1) {
return false;
}
SkIRect totalBounds;
for (int i = 0; i < fCount; ++i) {
SkImageFilter* filter = fFilters[i];
SkIRect r;
if (filter) {
if (!filter->filterBounds(src, ctm, &r)) {
return false;
}
} else {
r = src;
}
if (0 == i) {
totalBounds = r;
} else {
totalBounds.join(r);
}
}
// don't modify dst until now, so we don't accidentally change it in the
// loop, but then return false on the next filter.
*dst = totalBounds;
return true;
}
bool SkImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm,
SkIRect* dst, MapDirection direction) const {
if (fInputCount < 1) {
*dst = src;
return true;
}
SkIRect totalBounds;
for (int i = 0; i < fInputCount; ++i) {
SkImageFilter* filter = this->getInput(i);
SkIRect rect = src;
if (filter && !filter->filterBounds(src, ctm, &rect, direction)) {
return false;
}
if (0 == i) {
totalBounds = rect;
} else {
totalBounds.join(rect);
}
}
// don't modify dst until now, so we don't accidentally change it in the
// loop, but then return false on the next filter.
*dst = totalBounds;
return true;
}
bool SkComposeImageFilter::onFilterBounds(const SkIRect& src,
const SkMatrix& ctm,
SkIRect* dst) {
SkImageFilter* outer = getInput(0);
SkImageFilter* inner = getInput(1);
if (!outer && !inner) {
return false;
}
if (!outer || !inner) {
return (outer ? outer : inner)->filterBounds(src, ctm, dst);
}
SkIRect tmp;
return inner->filterBounds(src, ctm, &tmp) &&
outer->filterBounds(tmp, ctm, dst);
}
SkIRect SkImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm,
MapDirection direction) const {
if (this->countInputs() < 1) {
return src;
}
SkIRect totalBounds;
for (int i = 0; i < this->countInputs(); ++i) {
SkImageFilter* filter = this->getInput(i);
SkIRect rect = filter ? filter->filterBounds(src, ctm, direction) : src;
if (0 == i) {
totalBounds = rect;
} else {
totalBounds.join(rect);
}
}
return totalBounds;
}
bool SkImageFilter::applyCropRect(const Context& ctx, Proxy* proxy, const SkBitmap& src,
SkIPoint* srcOffset, SkIRect* bounds, SkBitmap* dst) const {
SkIRect srcBounds;
src.getBounds(&srcBounds);
srcBounds.offset(*srcOffset);
#ifdef SK_SUPPORT_SRC_BOUNDS_BLOAT_FOR_IMAGEFILTERS
if (!fCropRect.applyTo(srcBounds, ctx, bounds)) {
#else
SkIRect dstBounds;
this->onFilterNodeBounds(srcBounds, ctx.ctm(), &dstBounds, kForward_MapDirection);
if (!fCropRect.applyTo(dstBounds, ctx, bounds)) {
#endif
return false;
}
if (srcBounds.contains(*bounds)) {
*dst = src;
return true;
} else {
SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(bounds->width(), bounds->height()));
if (!device) {
return false;
}
SkCanvas canvas(device);
canvas.clear(0x00000000);
canvas.drawBitmap(src, srcOffset->x() - bounds->x(), srcOffset->y() - bounds->y());
*srcOffset = SkIPoint::Make(bounds->x(), bounds->y());
*dst = device->accessBitmap(false);
return true;
}
}
bool SkImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm,
SkIRect* dst) const {
if (fInputCount < 1) {
*dst = src;
return true;
}
SkIRect bounds, totalBounds;
this->onFilterNodeBounds(src, ctm, &bounds, kReverse_MapDirection);
for (int i = 0; i < fInputCount; ++i) {
SkImageFilter* filter = this->getInput(i);
SkIRect rect = bounds;
if (filter && !filter->filterBounds(bounds, ctm, &rect)) {
return false;
}
if (0 == i) {
totalBounds = rect;
} else {
totalBounds.join(rect);
}
}
// don't modify dst until now, so we don't accidentally change it in the
// loop, but then return false on the next filter.
*dst = totalBounds;
return true;
}
void SkImageFilter::onFilterNodeBounds(const SkIRect& src, const SkMatrix&,
SkIRect* dst, MapDirection) const {
*dst = src;
}
SkImageFilter::Context SkImageFilter::mapContext(const Context& ctx) const {
#ifdef SK_SUPPORT_SRC_BOUNDS_BLOAT_FOR_IMAGEFILTERS
return ctx;
#else
SkIRect clipBounds;
this->onFilterNodeBounds(ctx.clipBounds(), ctx.ctm(), &clipBounds,
MapDirection::kReverse_MapDirection);
return Context(ctx.ctm(), clipBounds, ctx.cache());
#endif
}
bool SkImageFilter::asFragmentProcessor(GrFragmentProcessor**, GrTexture*,
const SkMatrix&, const SkIRect&) const {
return false;
}
SkImageFilter* SkImageFilter::CreateMatrixFilter(const SkMatrix& matrix,
SkFilterQuality filterQuality,
SkImageFilter* input) {
return SkMatrixImageFilter::Create(matrix, filterQuality, input);
}
SkImageFilter* SkImageFilter::newWithLocalMatrix(const SkMatrix& matrix) const {
// SkLocalMatrixImageFilter takes SkImage* in its factory, but logically that parameter
// is *always* treated as a const ptr. Hence the const-cast here.
//
return SkLocalMatrixImageFilter::Create(matrix, const_cast<SkImageFilter*>(this));
}
#if SK_SUPPORT_GPU
bool SkImageFilter::filterInputGPU(int index, SkImageFilter::Proxy* proxy,
const SkBitmap& src, const Context& ctx,
SkBitmap* result, SkIPoint* offset) const {
SkImageFilter* input = this->getInput(index);
if (!input) {
return true;
}
// Ensure that GrContext calls under filterImage and filterImageGPU below will see an identity
// matrix with no clip and that the matrix, clip, and render target set before this function was
// called are restored before we return to the caller.
GrContext* context = src.getTexture()->getContext();
if (input->filterImage(proxy, src, this->mapContext(ctx), result, offset)) {
if (!result->getTexture()) {
const SkImageInfo info = result->info();
if (kUnknown_SkColorType == info.colorType()) {
return false;
}
SkAutoTUnref<GrTexture> resultTex(
GrRefCachedBitmapTexture(context, *result, GrTextureParams::ClampNoFilter()));
if (!resultTex) {
return false;
}
result->setPixelRef(new SkGrPixelRef(info, resultTex))->unref();
}
return true;
} else {
return false;
}
}
bool SkImageFilter::applyCropRect(const Context& ctx, Proxy* proxy, const SkBitmap& src,
SkIPoint* srcOffset, SkIRect* bounds, SkBitmap* dst) const {
SkIRect srcBounds;
src.getBounds(&srcBounds);
srcBounds.offset(*srcOffset);
#ifdef SK_SUPPORT_SRC_BOUNDS_BLOAT_FOR_IMAGEFILTERS
if (!fCropRect.applyTo(srcBounds, ctx, bounds)) {
#else
SkIRect dstBounds;
this->onFilterNodeBounds(srcBounds, ctx.ctm(), &dstBounds, kForward_MapDirection);
if (!fCropRect.applyTo(dstBounds, ctx, bounds)) {
#endif
return false;
}
if (srcBounds.contains(*bounds)) {
*dst = src;
return true;
} else {
SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(bounds->width(), bounds->height()));
if (!device) {
return false;
}
SkCanvas canvas(device);
canvas.clear(0x00000000);
canvas.drawBitmap(src, srcOffset->x() - bounds->x(), srcOffset->y() - bounds->y());
*srcOffset = SkIPoint::Make(bounds->x(), bounds->y());
*dst = device->accessBitmap(false);
return true;
}
}
bool SkImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm,
SkIRect* dst) const {
if (fInputCount < 1) {
*dst = src;
return true;
}
SkIRect bounds, totalBounds;
this->onFilterNodeBounds(src, ctm, &bounds, kReverse_MapDirection);
for (int i = 0; i < fInputCount; ++i) {
SkImageFilter* filter = this->getInput(i);
SkIRect rect = bounds;
if (filter && !filter->filterBounds(bounds, ctm, &rect)) {
return false;
}
if (0 == i) {
totalBounds = rect;
} else {
totalBounds.join(rect);
}
}
// don't modify dst until now, so we don't accidentally change it in the
// loop, but then return false on the next filter.
*dst = totalBounds;
return true;
}
void SkImageFilter::onFilterNodeBounds(const SkIRect& src, const SkMatrix&,
SkIRect* dst, MapDirection) const {
*dst = src;
}
SkImageFilter::Context SkImageFilter::mapContext(const Context& ctx) const {
#ifdef SK_SUPPORT_SRC_BOUNDS_BLOAT_FOR_IMAGEFILTERS
return ctx;
#else
SkIRect clipBounds;
this->onFilterNodeBounds(ctx.clipBounds(), ctx.ctm(), &clipBounds,
MapDirection::kReverse_MapDirection);
return Context(ctx.ctm(), clipBounds, ctx.cache(), ctx.sizeConstraint());
#endif
}
bool SkImageFilter::asFragmentProcessor(GrFragmentProcessor**, GrTexture*,
const SkMatrix&, const SkIRect&) const {
return false;
}
SkImageFilter* SkImageFilter::CreateMatrixFilter(const SkMatrix& matrix,
SkFilterQuality filterQuality,
SkImageFilter* input) {
return SkMatrixImageFilter::Create(matrix, filterQuality, input);
}
SkImageFilter* SkImageFilter::newWithLocalMatrix(const SkMatrix& matrix) const {
// SkLocalMatrixImageFilter takes SkImage* in its factory, but logically that parameter
// is *always* treated as a const ptr. Hence the const-cast here.
//
return SkLocalMatrixImageFilter::Create(matrix, const_cast<SkImageFilter*>(this));
}
#if SK_SUPPORT_GPU
void SkImageFilter::WrapTexture(GrTexture* texture, int width, int height, SkBitmap* result) {
SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
result->setInfo(info);
result->setPixelRef(new SkGrPixelRef(info, texture))->unref();
}