* found in the LICENSE file.
*/
-#include "SkBitmap.h"
#include "SkMagnifierImageFilter.h"
+
+#include "SkBitmap.h"
#include "SkColorPriv.h"
-#include "SkDevice.h"
#include "SkReadBuffer.h"
+#include "SkSpecialImage.h"
#include "SkWriteBuffer.h"
#include "SkValidationUtils.h"
////////////////////////////////////////////////////////////////////////////////
#if SK_SUPPORT_GPU
+#include "GrContext.h"
+#include "GrDrawContext.h"
#include "GrInvariantOutput.h"
#include "effects/GrSingleTextureEffect.h"
#include "glsl/GrGLSLFragmentProcessor.h"
class GrMagnifierEffect : public GrSingleTextureEffect {
public:
- static GrFragmentProcessor* Create(GrTexture* texture,
- const SkRect& bounds,
- float xOffset,
- float yOffset,
- float xInvZoom,
- float yInvZoom,
- float xInvInset,
- float yInvInset) {
- return new GrMagnifierEffect(texture, bounds, xOffset, yOffset, xInvZoom, yInvZoom, xInvInset,
- yInvInset);
+ static sk_sp<GrFragmentProcessor> Make(GrTexture* texture,
+ const SkRect& bounds,
+ float xOffset,
+ float yOffset,
+ float xInvZoom,
+ float yInvZoom,
+ float xInvInset,
+ float yInvInset) {
+ return sk_sp<GrFragmentProcessor>(new GrMagnifierEffect(texture, bounds,
+ xOffset, yOffset,
+ xInvZoom, yInvZoom,
+ xInvInset, yInvInset));
}
- virtual ~GrMagnifierEffect() {};
+ ~GrMagnifierEffect() override {};
const char* name() const override { return "Magnifier"; }
const SkRect& bounds() const { return fBounds; } // Bounds of source image.
// Offset to apply to zoomed pixels, (srcRect position / texture size).
- float x_offset() const { return fXOffset; }
- float y_offset() const { return fYOffset; }
+ float xOffset() const { return fXOffset; }
+ float yOffset() const { return fYOffset; }
// Scale to apply to zoomed pixels (srcRect size / bounds size).
- float x_inv_zoom() const { return fXInvZoom; }
- float y_inv_zoom() const { return fYInvZoom; }
+ float xInvZoom() const { return fXInvZoom; }
+ float yInvZoom() const { return fYInvZoom; }
// 1/radius over which to transition from unzoomed to zoomed pixels (bounds size / inset).
- float x_inv_inset() const { return fXInvInset; }
- float y_inv_inset() const { return fYInvInset; }
+ float xInvInset() const { return fXInvInset; }
+ float yInvInset() const { return fYInvInset; }
private:
GrMagnifierEffect(GrTexture* texture,
float yInvZoom,
float xInvInset,
float yInvInset)
- : INHERITED(texture, GrCoordTransform::MakeDivByTextureWHMatrix(texture))
+ : INHERITED(texture, nullptr, GrCoordTransform::MakeDivByTextureWHMatrix(texture))
, fBounds(bounds)
, fXOffset(xOffset)
, fYOffset(yOffset)
kVec4f_GrSLType, kDefault_GrSLPrecision,
"Bounds");
- GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
+ GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
SkString coords2D = fragBuilder->ensureFSCoords2D(args.fCoords, 0);
fragBuilder->codeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str());
fragBuilder->codeAppendf("\t\tvec2 zoom_coord = %s + %s * %s;\n",
fragBuilder->codeAppend("\t\tvec2 mix_coord = mix(coord, zoom_coord, weight);\n");
fragBuilder->codeAppend("\t\tvec4 output_color = ");
- fragBuilder->appendTextureLookup(args.fSamplers[0], "mix_coord");
+ fragBuilder->appendTextureLookup(args.fTexSamplers[0], "mix_coord");
fragBuilder->codeAppend(";\n");
fragBuilder->codeAppendf("\t\t%s = output_color;", args.fOutputColor);
void GrGLMagnifierEffect::onSetData(const GrGLSLProgramDataManager& pdman,
const GrProcessor& effect) {
const GrMagnifierEffect& zoom = effect.cast<GrMagnifierEffect>();
- pdman.set2f(fOffsetVar, zoom.x_offset(), zoom.y_offset());
- pdman.set2f(fInvZoomVar, zoom.x_inv_zoom(), zoom.y_inv_zoom());
- pdman.set2f(fInvInsetVar, zoom.x_inv_inset(), zoom.y_inv_inset());
+ pdman.set2f(fOffsetVar, zoom.xOffset(), zoom.yOffset());
+ pdman.set2f(fInvZoomVar, zoom.xInvZoom(), zoom.yInvZoom());
+ pdman.set2f(fInvInsetVar, zoom.xInvInset(), zoom.yInvInset());
pdman.set4f(fBoundsVar, zoom.bounds().x(), zoom.bounds().y(),
zoom.bounds().width(), zoom.bounds().height());
}
GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrMagnifierEffect);
-const GrFragmentProcessor* GrMagnifierEffect::TestCreate(GrProcessorTestData* d) {
+sk_sp<GrFragmentProcessor> GrMagnifierEffect::TestCreate(GrProcessorTestData* d) {
GrTexture* texture = d->fTextures[0];
const int kMaxWidth = 200;
const int kMaxHeight = 200;
uint32_t y = d->fRandom->nextULessThan(kMaxHeight - height);
uint32_t inset = d->fRandom->nextULessThan(kMaxInset);
- GrFragmentProcessor* effect = GrMagnifierEffect::Create(
+ sk_sp<GrFragmentProcessor> effect(GrMagnifierEffect::Make(
texture,
SkRect::MakeWH(SkIntToScalar(kMaxWidth), SkIntToScalar(kMaxHeight)),
(float) width / texture->width(),
texture->width() / (float) x,
texture->height() / (float) y,
(float) inset / texture->width(),
- (float) inset / texture->height());
+ (float) inset / texture->height()));
SkASSERT(effect);
return effect;
}
////////////////////////////////////////////////////////////////////////////////
-SkImageFilter* SkMagnifierImageFilter::Create(const SkRect& srcRect, SkScalar inset,
- SkImageFilter* input) {
+sk_sp<SkImageFilter> SkMagnifierImageFilter::Make(const SkRect& srcRect, SkScalar inset,
+ sk_sp<SkImageFilter> input,
+ const CropRect* cropRect) {
if (!SkScalarIsFinite(inset) || !SkIsValidRect(srcRect)) {
return nullptr;
if (srcRect.fLeft < 0 || srcRect.fTop < 0) {
return nullptr;
}
- return new SkMagnifierImageFilter(srcRect, inset, input);
+ return sk_sp<SkImageFilter>(new SkMagnifierImageFilter(srcRect, inset,
+ std::move(input),
+ cropRect));
}
-SkMagnifierImageFilter::SkMagnifierImageFilter(const SkRect& srcRect, SkScalar inset,
- SkImageFilter* input)
- : INHERITED(1, &input), fSrcRect(srcRect), fInset(inset) {
+SkMagnifierImageFilter::SkMagnifierImageFilter(const SkRect& srcRect,
+ SkScalar inset,
+ sk_sp<SkImageFilter> input,
+ const CropRect* cropRect)
+ : INHERITED(&input, 1, cropRect)
+ , fSrcRect(srcRect)
+ , fInset(inset) {
SkASSERT(srcRect.x() >= 0 && srcRect.y() >= 0 && inset >= 0);
}
-#if SK_SUPPORT_GPU
-bool SkMagnifierImageFilter::asFragmentProcessor(GrFragmentProcessor** fp,
- GrTexture* texture, const SkMatrix&,
- const SkIRect&bounds) const {
- if (fp) {
- SkScalar yOffset = texture->origin() == kTopLeft_GrSurfaceOrigin ? fSrcRect.y() :
- texture->height() - fSrcRect.height() * texture->height() / bounds.height()
- - fSrcRect.y();
- int boundsY = (texture->origin() == kTopLeft_GrSurfaceOrigin) ? bounds.y() :
- (texture->height() - bounds.height());
- SkRect effectBounds = SkRect::MakeXYWH(
- SkIntToScalar(bounds.x()) / texture->width(),
- SkIntToScalar(boundsY) / texture->height(),
- SkIntToScalar(texture->width()) / bounds.width(),
- SkIntToScalar(texture->height()) / bounds.height());
- SkScalar invInset = fInset > 0 ? SkScalarInvert(fInset) : SK_Scalar1;
- *fp = GrMagnifierEffect::Create(texture,
- effectBounds,
- fSrcRect.x() / texture->width(),
- yOffset / texture->height(),
- fSrcRect.width() / bounds.width(),
- fSrcRect.height() / bounds.height(),
- bounds.width() * invInset,
- bounds.height() * invInset);
- }
- return true;
-}
-#endif
-
-SkFlattenable* SkMagnifierImageFilter::CreateProc(SkReadBuffer& buffer) {
+sk_sp<SkFlattenable> SkMagnifierImageFilter::CreateProc(SkReadBuffer& buffer) {
SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1);
SkRect src;
buffer.readRect(&src);
- return Create(src, buffer.readScalar(), common.getInput(0));
+ return Make(src, buffer.readScalar(), common.getInput(0), &common.cropRect());
}
void SkMagnifierImageFilter::flatten(SkWriteBuffer& buffer) const {
buffer.writeScalar(fInset);
}
-bool SkMagnifierImageFilter::onFilterImageDeprecated(Proxy* proxy, const SkBitmap& src,
- const Context&, SkBitmap* dst,
- SkIPoint* offset) const {
- if ((src.colorType() != kN32_SkColorType) ||
- (fSrcRect.width() >= src.width()) ||
- (fSrcRect.height() >= src.height())) {
- return false;
+sk_sp<SkSpecialImage> SkMagnifierImageFilter::onFilterImage(SkSpecialImage* source,
+ const Context& ctx,
+ SkIPoint* offset) const {
+ SkIPoint inputOffset = SkIPoint::Make(0, 0);
+ sk_sp<SkSpecialImage> input(this->filterInput(0, source, ctx, &inputOffset));
+ if (!input) {
+ return nullptr;
+ }
+
+ const SkIRect inputBounds = SkIRect::MakeXYWH(inputOffset.x(), inputOffset.y(),
+ input->width(), input->height());
+
+ SkIRect bounds;
+ if (!this->applyCropRect(ctx, inputBounds, &bounds)) {
+ return nullptr;
+ }
+
+ SkScalar invInset = fInset > 0 ? SkScalarInvert(fInset) : SK_Scalar1;
+
+ SkScalar invXZoom = fSrcRect.width() / bounds.width();
+ SkScalar invYZoom = fSrcRect.height() / bounds.height();
+
+
+#if SK_SUPPORT_GPU
+ if (source->isTextureBacked()) {
+ GrContext* context = source->getContext();
+
+ sk_sp<GrTexture> inputTexture(input->asTextureRef(context));
+ SkASSERT(inputTexture);
+
+ offset->fX = bounds.left();
+ offset->fY = bounds.top();
+ bounds.offset(-inputOffset);
+
+ SkScalar yOffset = inputTexture->origin() == kTopLeft_GrSurfaceOrigin
+ ? fSrcRect.y()
+ : inputTexture->height() -
+ fSrcRect.height() * inputTexture->height() / bounds.height() - fSrcRect.y();
+ int boundsY = inputTexture->origin() == kTopLeft_GrSurfaceOrigin
+ ? bounds.y()
+ : inputTexture->height() - bounds.height();
+ SkRect effectBounds = SkRect::MakeXYWH(
+ SkIntToScalar(bounds.x()) / inputTexture->width(),
+ SkIntToScalar(boundsY) / inputTexture->height(),
+ SkIntToScalar(inputTexture->width()) / bounds.width(),
+ SkIntToScalar(inputTexture->height()) / bounds.height());
+ // SRGBTODO: Handle sRGB here
+ sk_sp<GrFragmentProcessor> fp(GrMagnifierEffect::Make(
+ inputTexture.get(),
+ effectBounds,
+ fSrcRect.x() / inputTexture->width(),
+ yOffset / inputTexture->height(),
+ invXZoom,
+ invYZoom,
+ bounds.width() * invInset,
+ bounds.height() * invInset));
+ if (!fp) {
+ return nullptr;
+ }
+
+ return DrawWithFP(context, std::move(fp), bounds);
}
+#endif
- SkAutoLockPixels alp(src);
- SkASSERT(src.getPixels());
- if (!src.getPixels() || src.width() <= 0 || src.height() <= 0) {
- return false;
+ SkBitmap inputBM;
+
+ if (!input->getROPixels(&inputBM)) {
+ return nullptr;
}
- SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(src.width(), src.height()));
- if (!device) {
- return false;
+ if ((inputBM.colorType() != kN32_SkColorType) ||
+ (fSrcRect.width() >= inputBM.width()) || (fSrcRect.height() >= inputBM.height())) {
+ return nullptr;
+ }
+
+ SkAutoLockPixels alp(inputBM);
+ SkASSERT(inputBM.getPixels());
+ if (!inputBM.getPixels() || inputBM.width() <= 0 || inputBM.height() <= 0) {
+ return nullptr;
}
- *dst = device->accessBitmap(false);
- SkAutoLockPixels alp_dst(*dst);
- SkScalar inv_inset = fInset > 0 ? SkScalarInvert(fInset) : SK_Scalar1;
+ const SkImageInfo info = SkImageInfo::MakeN32Premul(bounds.width(), bounds.height());
- SkScalar inv_x_zoom = fSrcRect.width() / src.width();
- SkScalar inv_y_zoom = fSrcRect.height() / src.height();
+ SkBitmap dst;
+ if (!dst.tryAllocPixels(info)) {
+ return nullptr;
+ }
- SkColor* sptr = src.getAddr32(0, 0);
- SkColor* dptr = dst->getAddr32(0, 0);
- int width = src.width(), height = src.height();
- for (int y = 0; y < height; ++y) {
- for (int x = 0; x < width; ++x) {
- SkScalar x_dist = SkMin32(x, width - x - 1) * inv_inset;
- SkScalar y_dist = SkMin32(y, height - y - 1) * inv_inset;
+ SkAutoLockPixels dstLock(dst);
+
+ SkColor* dptr = dst.getAddr32(0, 0);
+ int dstWidth = dst.width(), dstHeight = dst.height();
+ for (int y = 0; y < dstHeight; ++y) {
+ for (int x = 0; x < dstWidth; ++x) {
+ SkScalar x_dist = SkMin32(x, dstWidth - x - 1) * invInset;
+ SkScalar y_dist = SkMin32(y, dstHeight - y - 1) * invInset;
SkScalar weight = 0;
static const SkScalar kScalar2 = SkScalar(2);
weight = SkMinScalar(sqDist, SK_Scalar1);
}
- SkScalar x_interp = SkScalarMul(weight, (fSrcRect.x() + x * inv_x_zoom)) +
+ SkScalar x_interp = SkScalarMul(weight, (fSrcRect.x() + x * invXZoom)) +
(SK_Scalar1 - weight) * x;
- SkScalar y_interp = SkScalarMul(weight, (fSrcRect.y() + y * inv_y_zoom)) +
+ SkScalar y_interp = SkScalarMul(weight, (fSrcRect.y() + y * invYZoom)) +
(SK_Scalar1 - weight) * y;
- int x_val = SkTPin(SkScalarFloorToInt(x_interp), 0, width - 1);
- int y_val = SkTPin(SkScalarFloorToInt(y_interp), 0, height - 1);
+ int x_val = SkTPin(bounds.x() + SkScalarFloorToInt(x_interp), 0, inputBM.width() - 1);
+ int y_val = SkTPin(bounds.y() + SkScalarFloorToInt(y_interp), 0, inputBM.height() - 1);
- *dptr = sptr[y_val * width + x_val];
+ *dptr = *inputBM.getAddr32(x_val, y_val);
dptr++;
}
}
- return true;
+
+ offset->fX = bounds.left();
+ offset->fY = bounds.top();
+ return SkSpecialImage::MakeFromRaster(SkIRect::MakeWH(bounds.width(), bounds.height()),
+ dst);
}
#ifndef SK_IGNORE_TO_STRING
projects / platform / upstream / libSkiaSharp.git / blobdiff