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Diffstat (limited to 'core/jni/android/graphics/Canvas.cpp')
| -rw-r--r-- | core/jni/android/graphics/Canvas.cpp | 1330 |
1 files changed, 0 insertions, 1330 deletions
diff --git a/core/jni/android/graphics/Canvas.cpp b/core/jni/android/graphics/Canvas.cpp deleted file mode 100644 index 6254f3d..0000000 --- a/core/jni/android/graphics/Canvas.cpp +++ /dev/null @@ -1,1330 +0,0 @@ -/* - * Copyright (C) 2006-2007 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include "jni.h" -#include "GraphicsJNI.h" -#include <android_runtime/AndroidRuntime.h> - -#include "SkCanvas.h" -#include "SkClipStack.h" -#include "SkDevice.h" -#include "SkDeque.h" -#include "SkDrawFilter.h" -#include "SkGraphics.h" -#include <SkImageInfo.h> -#include "SkPorterDuff.h" -#include "SkShader.h" -#include "SkTArray.h" -#include "SkTemplates.h" - -#include <minikin/Layout.h> -#include "MinikinSkia.h" -#include "MinikinUtils.h" - -#include "TypefaceImpl.h" - -#include "unicode/ubidi.h" -#include "unicode/ushape.h" - -#include <utils/Log.h> - -namespace android { - -class ClipCopier : public SkCanvas::ClipVisitor { -public: - ClipCopier(SkCanvas* dstCanvas) : m_dstCanvas(dstCanvas) {} - - virtual void clipRect(const SkRect& rect, SkRegion::Op op, bool antialias) { - m_dstCanvas->clipRect(rect, op, antialias); - } - virtual void clipRRect(const SkRRect& rrect, SkRegion::Op op, bool antialias) { - m_dstCanvas->clipRRect(rrect, op, antialias); - } - virtual void clipPath(const SkPath& path, SkRegion::Op op, bool antialias) { - m_dstCanvas->clipPath(path, op, antialias); - } - -private: - SkCanvas* m_dstCanvas; -}; - -// Holds an SkCanvas reference plus additional native data. -class NativeCanvasWrapper { -private: - struct SaveRec { - int saveCount; - SkCanvas::SaveFlags saveFlags; - }; - -public: - NativeCanvasWrapper(SkCanvas* canvas) - : mCanvas(canvas) - , mSaveStack(NULL) { - SkASSERT(canvas); - } - - ~NativeCanvasWrapper() { - delete mSaveStack; - } - - SkCanvas* getCanvas() const { - return mCanvas.get(); - } - - void setCanvas(SkCanvas* canvas) { - SkASSERT(canvas); - mCanvas.reset(canvas); - - delete mSaveStack; - mSaveStack = NULL; - } - - int save(SkCanvas::SaveFlags flags) { - int count = mCanvas->save(); - recordPartialSave(flags); - return count; - } - - int saveLayer(const SkRect* bounds, const SkPaint* paint, - SkCanvas::SaveFlags flags) { - int count = mCanvas->saveLayer(bounds, paint, - static_cast<SkCanvas::SaveFlags>(flags | SkCanvas::kMatrixClip_SaveFlag)); - recordPartialSave(flags); - return count; - } - - int saveLayerAlpha(const SkRect* bounds, U8CPU alpha, - SkCanvas::SaveFlags flags) { - int count = mCanvas->saveLayerAlpha(bounds, alpha, - static_cast<SkCanvas::SaveFlags>(flags | SkCanvas::kMatrixClip_SaveFlag)); - recordPartialSave(flags); - return count; - } - - void restore() { - const SaveRec* rec = (NULL == mSaveStack) - ? NULL - : static_cast<SaveRec*>(mSaveStack->back()); - int currentSaveCount = mCanvas->getSaveCount() - 1; - SkASSERT(NULL == rec || currentSaveCount >= rec->saveCount); - - if (NULL == rec || rec->saveCount != currentSaveCount) { - // Fast path - no record for this frame. - mCanvas->restore(); - return; - } - - bool preserveMatrix = !(rec->saveFlags & SkCanvas::kMatrix_SaveFlag); - bool preserveClip = !(rec->saveFlags & SkCanvas::kClip_SaveFlag); - - SkMatrix savedMatrix; - if (preserveMatrix) { - savedMatrix = mCanvas->getTotalMatrix(); - } - - SkTArray<SkClipStack::Element> savedClips; - if (preserveClip) { - saveClipsForFrame(savedClips, currentSaveCount); - } - - mCanvas->restore(); - - if (preserveMatrix) { - mCanvas->setMatrix(savedMatrix); - } - - if (preserveClip && !savedClips.empty()) { - applyClips(savedClips); - } - - mSaveStack->pop_back(); - } - -private: - void recordPartialSave(SkCanvas::SaveFlags flags) { - // A partial save is a save operation which doesn't capture the full canvas state. - // (either kMatrix_SaveFlags or kClip_SaveFlag is missing). - - // Mask-out non canvas state bits. - flags = static_cast<SkCanvas::SaveFlags>(flags & SkCanvas::kMatrixClip_SaveFlag); - - if (SkCanvas::kMatrixClip_SaveFlag == flags) { - // not a partial save. - return; - } - - if (NULL == mSaveStack) { - mSaveStack = new SkDeque(sizeof(struct SaveRec), 8); - } - - SaveRec* rec = static_cast<SaveRec*>(mSaveStack->push_back()); - // Store the save counter in the SkClipStack domain. - // (0-based, equal to the number of save ops on the stack). - rec->saveCount = mCanvas->getSaveCount() - 1; - rec->saveFlags = flags; - } - - void saveClipsForFrame(SkTArray<SkClipStack::Element>& clips, - int frameSaveCount) { - SkClipStack::Iter clipIterator(*mCanvas->getClipStack(), - SkClipStack::Iter::kTop_IterStart); - while (const SkClipStack::Element* elem = clipIterator.next()) { - if (elem->getSaveCount() < frameSaveCount) { - // done with the current frame. - break; - } - SkASSERT(elem->getSaveCount() == frameSaveCount); - clips.push_back(*elem); - } - } - - void applyClips(const SkTArray<SkClipStack::Element>& clips) { - ClipCopier clipCopier(mCanvas); - - // The clip stack stores clips in device space. - SkMatrix origMatrix = mCanvas->getTotalMatrix(); - mCanvas->resetMatrix(); - - // We pushed the clips in reverse order. - for (int i = clips.count() - 1; i >= 0; --i) { - clips[i].replay(&clipCopier); - } - - mCanvas->setMatrix(origMatrix); - } - - SkAutoTUnref<SkCanvas> mCanvas; - SkDeque* mSaveStack; // lazily allocated, tracks partial saves. -}; - -// Returns true if the SkCanvas's clip is non-empty. -static jboolean hasNonEmptyClip(const SkCanvas& canvas) { - bool emptyClip = canvas.isClipEmpty(); - return emptyClip ? JNI_FALSE : JNI_TRUE; -} - -class SkCanvasGlue { -public: - // Get the native wrapper for a given handle. - static inline NativeCanvasWrapper* getNativeWrapper(jlong nativeHandle) { - SkASSERT(nativeHandle); - return reinterpret_cast<NativeCanvasWrapper*>(nativeHandle); - } - - // Get the SkCanvas for a given native handle. - static inline SkCanvas* getNativeCanvas(jlong nativeHandle) { - NativeCanvasWrapper* wrapper = getNativeWrapper(nativeHandle); - SkCanvas* canvas = wrapper->getCanvas(); - SkASSERT(canvas); - - return canvas; - } - - // Construct an SkCanvas from the bitmap. - static SkCanvas* createCanvas(SkBitmap* bitmap) { - if (bitmap) { - return SkNEW_ARGS(SkCanvas, (*bitmap)); - } - - // Create an empty bitmap device to prevent callers from crashing - // if they attempt to draw into this canvas. - SkBitmap emptyBitmap; - return new SkCanvas(emptyBitmap); - } - - // Copy the canvas matrix & clip state. - static void copyCanvasState(SkCanvas* srcCanvas, SkCanvas* dstCanvas) { - if (srcCanvas && dstCanvas) { - dstCanvas->setMatrix(srcCanvas->getTotalMatrix()); - if (NULL != srcCanvas->getDevice() && NULL != dstCanvas->getDevice()) { - ClipCopier copier(dstCanvas); - srcCanvas->replayClips(&copier); - } - } - } - - // Native JNI handlers - static void finalizer(JNIEnv* env, jobject clazz, jlong nativeHandle) { - NativeCanvasWrapper* wrapper = reinterpret_cast<NativeCanvasWrapper*>(nativeHandle); - delete wrapper; - } - - // Native wrapper constructor used by Canvas(Bitmap) - static jlong initRaster(JNIEnv* env, jobject, jlong bitmapHandle) { - // No check - 0 is a valid bitmapHandle. - SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); - SkCanvas* canvas = createCanvas(bitmap); - - return reinterpret_cast<jlong>(new NativeCanvasWrapper(canvas)); - } - - // Native wrapper constructor used by Canvas(native_canvas) - static jlong initCanvas(JNIEnv* env, jobject, jlong canvasHandle) { - SkCanvas* canvas = reinterpret_cast<SkCanvas*>(canvasHandle); - return reinterpret_cast<jlong>(new NativeCanvasWrapper(canvas)); - } - - // Set the given bitmap as the new draw target (wrapped in a new SkCanvas), - // optionally copying canvas matrix & clip state. - static void setBitmap(JNIEnv* env, jobject, jlong canvasHandle, jlong bitmapHandle, - jboolean copyState) { - NativeCanvasWrapper* wrapper = reinterpret_cast<NativeCanvasWrapper*>(canvasHandle); - SkCanvas* newCanvas = createCanvas(reinterpret_cast<SkBitmap*>(bitmapHandle)); - NPE_CHECK_RETURN_VOID(env, newCanvas); - - if (copyState == JNI_TRUE) { - copyCanvasState(wrapper->getCanvas(), newCanvas); - } - - // setCanvas() unrefs the old canvas. - wrapper->setCanvas(newCanvas); - } - - static void freeCaches(JNIEnv* env, jobject) { - SkGraphics::PurgeFontCache(); - } - - static void freeTextLayoutCaches(JNIEnv* env, jobject) { - Layout::purgeCaches(); - } - - static jboolean isOpaque(JNIEnv*, jobject, jlong canvasHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - bool result = canvas->getDevice()->accessBitmap(false).isOpaque(); - return result ? JNI_TRUE : JNI_FALSE; - } - - static jint getWidth(JNIEnv*, jobject, jlong canvasHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - int width = canvas->getDevice()->accessBitmap(false).width(); - return static_cast<jint>(width); - } - - static jint getHeight(JNIEnv*, jobject, jlong canvasHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - int height = canvas->getDevice()->accessBitmap(false).height(); - return static_cast<jint>(height); - } - - static jint save(JNIEnv*, jobject, jlong canvasHandle, jint flagsHandle) { - NativeCanvasWrapper* wrapper = getNativeWrapper(canvasHandle); - SkCanvas::SaveFlags flags = static_cast<SkCanvas::SaveFlags>(flagsHandle); - return static_cast<jint>(wrapper->save(flags)); - } - - static jint saveLayer(JNIEnv* env, jobject, jlong canvasHandle, - jfloat l, jfloat t, jfloat r, jfloat b, - jlong paintHandle, jint flagsHandle) { - NativeCanvasWrapper* wrapper = getNativeWrapper(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - SkCanvas::SaveFlags flags = static_cast<SkCanvas::SaveFlags>(flagsHandle); - SkRect bounds; - bounds.set(l, t, r, b); - return static_cast<jint>(wrapper->saveLayer(&bounds, paint, flags)); - } - - static jint saveLayerAlpha(JNIEnv* env, jobject, jlong canvasHandle, - jfloat l, jfloat t, jfloat r, jfloat b, - jint alpha, jint flagsHandle) { - NativeCanvasWrapper* wrapper = getNativeWrapper(canvasHandle); - SkCanvas::SaveFlags flags = static_cast<SkCanvas::SaveFlags>(flagsHandle); - SkRect bounds; - bounds.set(l, t, r, b); - return static_cast<jint>(wrapper->saveLayerAlpha(&bounds, alpha, flags)); - } - - static void restore(JNIEnv* env, jobject, jlong canvasHandle) { - NativeCanvasWrapper* wrapper = getNativeWrapper(canvasHandle); - if (wrapper->getCanvas()->getSaveCount() <= 1) { // cannot restore anymore - doThrowISE(env, "Underflow in restore"); - return; - } - wrapper->restore(); - } - - static jint getSaveCount(JNIEnv*, jobject, jlong canvasHandle) { - return static_cast<jint>(getNativeCanvas(canvasHandle)->getSaveCount()); - } - - static void restoreToCount(JNIEnv* env, jobject, jlong canvasHandle, - jint restoreCount) { - NativeCanvasWrapper* wrapper = getNativeWrapper(canvasHandle); - if (restoreCount < 1) { - doThrowIAE(env, "Underflow in restoreToCount"); - return; - } - - while (wrapper->getCanvas()->getSaveCount() > restoreCount) { - wrapper->restore(); - } - } - - static void translate(JNIEnv*, jobject, jlong canvasHandle, - jfloat dx, jfloat dy) { - getNativeCanvas(canvasHandle)->translate(dx, dy); - } - - static void scale__FF(JNIEnv*, jobject, jlong canvasHandle, - jfloat sx, jfloat sy) { - getNativeCanvas(canvasHandle)->scale(sx, sy); - } - - static void rotate__F(JNIEnv*, jobject, jlong canvasHandle, - jfloat degrees) { - getNativeCanvas(canvasHandle)->rotate(degrees); - } - - static void skew__FF(JNIEnv*, jobject, jlong canvasHandle, - jfloat sx, jfloat sy) { - getNativeCanvas(canvasHandle)->skew(sx, sy); - } - - static void concat(JNIEnv* env, jobject, jlong canvasHandle, - jlong matrixHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - const SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); - canvas->concat(*matrix); - } - - static void setMatrix(JNIEnv* env, jobject, jlong canvasHandle, - jlong matrixHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - const SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); - if (NULL == matrix) { - canvas->resetMatrix(); - } else { - canvas->setMatrix(*matrix); - } - } - - static jboolean clipRect(JNIEnv*, jobject, jlong canvasHandle, - jfloat left, jfloat top, jfloat right, - jfloat bottom, jint op) { - SkRect r; - r.set(left, top, right, bottom); - SkCanvas* c = getNativeCanvas(canvasHandle); - c->clipRect(r, static_cast<SkRegion::Op>(op)); - return hasNonEmptyClip(*c); - } - - static jboolean clipPath(JNIEnv* env, jobject, jlong canvasHandle, - jlong pathHandle, jint op) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - canvas->clipPath(*reinterpret_cast<SkPath*>(pathHandle), - static_cast<SkRegion::Op>(op)); - return hasNonEmptyClip(*canvas); - } - - static jboolean clipRegion(JNIEnv* env, jobject, jlong canvasHandle, - jlong deviceRgnHandle, jint op) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkRegion* deviceRgn = reinterpret_cast<SkRegion*>(deviceRgnHandle); - SkPath rgnPath; - if (deviceRgn->getBoundaryPath(&rgnPath)) { - // The region is specified in device space. - SkMatrix savedMatrix = canvas->getTotalMatrix(); - canvas->resetMatrix(); - canvas->clipPath(rgnPath, static_cast<SkRegion::Op>(op)); - canvas->setMatrix(savedMatrix); - } else { - canvas->clipRect(SkRect::MakeEmpty(), static_cast<SkRegion::Op>(op)); - } - return hasNonEmptyClip(*canvas); - } - - static void setDrawFilter(JNIEnv* env, jobject, jlong canvasHandle, - jlong filterHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - canvas->setDrawFilter(reinterpret_cast<SkDrawFilter*>(filterHandle)); - } - - static jboolean quickReject__Path(JNIEnv* env, jobject, jlong canvasHandle, - jlong pathHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - bool result = canvas->quickReject(*reinterpret_cast<SkPath*>(pathHandle)); - return result ? JNI_TRUE : JNI_FALSE; - } - - static jboolean quickReject__FFFF(JNIEnv* env, jobject, jlong canvasHandle, - jfloat left, jfloat top, jfloat right, - jfloat bottom) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkRect r; - r.set(left, top, right, bottom); - bool result = canvas->quickReject(r); - return result ? JNI_TRUE : JNI_FALSE; - } - - static void drawRGB(JNIEnv* env, jobject, jlong canvasHandle, - jint r, jint g, jint b) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - canvas->drawARGB(0xFF, r, g, b); - } - - static void drawARGB(JNIEnv* env, jobject, jlong canvasHandle, - jint a, jint r, jint g, jint b) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - canvas->drawARGB(a, r, g, b); - } - - static void drawColor__I(JNIEnv* env, jobject, jlong canvasHandle, - jint color) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - canvas->drawColor(color); - } - - static void drawColor__II(JNIEnv* env, jobject, jlong canvasHandle, - jint color, jint modeHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPorterDuff::Mode mode = static_cast<SkPorterDuff::Mode>(modeHandle); - canvas->drawColor(color, SkPorterDuff::ToXfermodeMode(mode)); - } - - static void drawPaint(JNIEnv* env, jobject, jlong canvasHandle, - jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - canvas->drawPaint(*paint); - } - - static void doPoints(JNIEnv* env, jlong canvasHandle, - jfloatArray jptsArray, jint offset, jint count, - jlong paintHandle, jint modeHandle) { - NPE_CHECK_RETURN_VOID(env, jptsArray); - SkCanvas::PointMode mode = static_cast<SkCanvas::PointMode>(modeHandle); - SkCanvas* canvas = getNativeCanvas(canvasHandle); - const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - - AutoJavaFloatArray autoPts(env, jptsArray); - float* floats = autoPts.ptr(); - const int length = autoPts.length(); - - if ((offset | count) < 0 || offset + count > length) { - doThrowAIOOBE(env); - return; - } - - // now convert the floats into SkPoints - count >>= 1; // now it is the number of points - SkAutoSTMalloc<32, SkPoint> storage(count); - SkPoint* pts = storage.get(); - const float* src = floats + offset; - for (int i = 0; i < count; i++) { - pts[i].set(src[0], src[1]); - src += 2; - } - canvas->drawPoints(mode, count, pts, *paint); - } - - static void drawPoints(JNIEnv* env, jobject, jlong canvasHandle, - jfloatArray jptsArray, jint offset, - jint count, jlong paintHandle) { - doPoints(env, canvasHandle, jptsArray, offset, count, paintHandle, - SkCanvas::kPoints_PointMode); - } - - static void drawLines(JNIEnv* env, jobject, jlong canvasHandle, - jfloatArray jptsArray, jint offset, jint count, - jlong paintHandle) { - doPoints(env, canvasHandle, jptsArray, offset, count, paintHandle, - SkCanvas::kLines_PointMode); - } - - static void drawPoint(JNIEnv*, jobject, jlong canvasHandle, jfloat x, jfloat y, - jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - canvas->drawPoint(x, y, *paint); - } - - static void drawLine__FFFFPaint(JNIEnv* env, jobject, jlong canvasHandle, - jfloat startX, jfloat startY, jfloat stopX, - jfloat stopY, jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - canvas->drawLine(startX, startY, stopX, stopY, *paint); - } - - static void drawRect__FFFFPaint(JNIEnv* env, jobject, jlong canvasHandle, - jfloat left, jfloat top, jfloat right, - jfloat bottom, jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - canvas->drawRectCoords(left, top, right, bottom, *paint); - } - - static void drawOval(JNIEnv* env, jobject, jlong canvasHandle, jfloat left, jfloat top, - jfloat right, jfloat bottom, jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - SkRect oval = SkRect::MakeLTRB(left, top, right, bottom); - canvas->drawOval(oval, *paint); - } - - static void drawCircle(JNIEnv* env, jobject, jlong canvasHandle, jfloat cx, - jfloat cy, jfloat radius, jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - canvas->drawCircle(cx, cy, radius, *paint); - } - - static void drawArc(JNIEnv* env, jobject, jlong canvasHandle, jfloat left, jfloat top, - jfloat right, jfloat bottom, jfloat startAngle, jfloat sweepAngle, jboolean useCenter, - jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - SkRect oval = SkRect::MakeLTRB(left, top, right, bottom); - canvas->drawArc(oval, startAngle, sweepAngle, useCenter, *paint); - } - - static void drawRoundRect(JNIEnv* env, jobject, jlong canvasHandle, - jfloat left, jfloat top, jfloat right, jfloat bottom, jfloat rx, jfloat ry, - jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - SkRect rect = SkRect::MakeLTRB(left, top, right, bottom); - canvas->drawRoundRect(rect, rx, ry, *paint); - } - - static void drawPath(JNIEnv* env, jobject, jlong canvasHandle, jlong pathHandle, - jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPath* path = reinterpret_cast<SkPath*>(pathHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - canvas->drawPath(*path, *paint); - } - - static void drawBitmap__BitmapFFPaint(JNIEnv* env, jobject jcanvas, - jlong canvasHandle, jlong bitmapHandle, - jfloat left, jfloat top, - jlong paintHandle, jint canvasDensity, - jint screenDensity, jint bitmapDensity) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - - if (canvasDensity == bitmapDensity || canvasDensity == 0 - || bitmapDensity == 0) { - if (screenDensity != 0 && screenDensity != bitmapDensity) { - SkPaint filteredPaint; - if (paint) { - filteredPaint = *paint; - } - filteredPaint.setFilterLevel(SkPaint::kLow_FilterLevel); - canvas->drawBitmap(*bitmap, left, top, &filteredPaint); - } else { - canvas->drawBitmap(*bitmap, left, top, paint); - } - } else { - canvas->save(); - SkScalar scale = canvasDensity / (float)bitmapDensity; - canvas->translate(left, top); - canvas->scale(scale, scale); - - SkPaint filteredPaint; - if (paint) { - filteredPaint = *paint; - } - filteredPaint.setFilterLevel(SkPaint::kLow_FilterLevel); - - canvas->drawBitmap(*bitmap, 0, 0, &filteredPaint); - - canvas->restore(); - } - } - - static void doDrawBitmap(JNIEnv* env, SkCanvas* canvas, SkBitmap* bitmap, - jobject srcIRect, const SkRect& dst, SkPaint* paint, - jint screenDensity, jint bitmapDensity) { - SkIRect src, *srcPtr = NULL; - - if (NULL != srcIRect) { - GraphicsJNI::jrect_to_irect(env, srcIRect, &src); - srcPtr = &src; - } - - if (screenDensity != 0 && screenDensity != bitmapDensity) { - SkPaint filteredPaint; - if (paint) { - filteredPaint = *paint; - } - filteredPaint.setFilterLevel(SkPaint::kLow_FilterLevel); - canvas->drawBitmapRect(*bitmap, srcPtr, dst, &filteredPaint); - } else { - canvas->drawBitmapRect(*bitmap, srcPtr, dst, paint); - } - } - - static void drawBitmapRF(JNIEnv* env, jobject, jlong canvasHandle, - jlong bitmapHandle, jobject srcIRect, - jobject dstRectF, jlong paintHandle, - jint screenDensity, jint bitmapDensity) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - SkRect dst; - GraphicsJNI::jrectf_to_rect(env, dstRectF, &dst); - doDrawBitmap(env, canvas, bitmap, srcIRect, dst, paint, - screenDensity, bitmapDensity); - } - - static void drawBitmapRR(JNIEnv* env, jobject, jlong canvasHandle, - jlong bitmapHandle, jobject srcIRect, - jobject dstRect, jlong paintHandle, - jint screenDensity, jint bitmapDensity) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - SkRect dst; - GraphicsJNI::jrect_to_rect(env, dstRect, &dst); - doDrawBitmap(env, canvas, bitmap, srcIRect, dst, paint, - screenDensity, bitmapDensity); - } - - static void drawBitmapArray(JNIEnv* env, jobject, jlong canvasHandle, - jintArray jcolors, jint offset, jint stride, - jfloat x, jfloat y, jint width, jint height, - jboolean hasAlpha, jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - // Note: If hasAlpha is false, kRGB_565_SkColorType will be used, which will - // correct the alphaType to kOpaque_SkAlphaType. - SkImageInfo info = SkImageInfo::Make(width, height, - hasAlpha ? kN32_SkColorType : kRGB_565_SkColorType, - kPremul_SkAlphaType); - SkBitmap bitmap; - if (!bitmap.allocPixels(info)) { - return; - } - - if (!GraphicsJNI::SetPixels(env, jcolors, offset, stride, - 0, 0, width, height, bitmap)) { - return; - } - - canvas->drawBitmap(bitmap, x, y, paint); - } - - static void drawBitmapMatrix(JNIEnv* env, jobject, jlong canvasHandle, - jlong bitmapHandle, jlong matrixHandle, - jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - const SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); - const SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); - const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - canvas->drawBitmapMatrix(*bitmap, *matrix, paint); - } - - static void drawBitmapMesh(JNIEnv* env, jobject, jlong canvasHandle, - jlong bitmapHandle, jint meshWidth, jint meshHeight, - jfloatArray jverts, jint vertIndex, jintArray jcolors, - jint colorIndex, jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - const SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); - const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - - const int ptCount = (meshWidth + 1) * (meshHeight + 1); - const int indexCount = meshWidth * meshHeight * 6; - - AutoJavaFloatArray vertA(env, jverts, vertIndex + (ptCount << 1)); - AutoJavaIntArray colorA(env, jcolors, colorIndex + ptCount); - - /* Our temp storage holds 2 or 3 arrays. - texture points [ptCount * sizeof(SkPoint)] - optionally vertex points [ptCount * sizeof(SkPoint)] if we need a - copy to convert from float to fixed - indices [ptCount * sizeof(uint16_t)] - */ - ssize_t storageSize = ptCount * sizeof(SkPoint); // texs[] - storageSize += indexCount * sizeof(uint16_t); // indices[] - - SkAutoMalloc storage(storageSize); - SkPoint* texs = (SkPoint*)storage.get(); - SkPoint* verts; - uint16_t* indices; -#ifdef SK_SCALAR_IS_FLOAT - verts = (SkPoint*)(vertA.ptr() + vertIndex); - indices = (uint16_t*)(texs + ptCount); -#else - SkASSERT(false); -#endif - - // cons up texture coordinates and indices - { - const SkScalar w = SkIntToScalar(bitmap->width()); - const SkScalar h = SkIntToScalar(bitmap->height()); - const SkScalar dx = w / meshWidth; - const SkScalar dy = h / meshHeight; - - SkPoint* texsPtr = texs; - SkScalar y = 0; - for (int i = 0; i <= meshHeight; i++) { - if (i == meshHeight) { - y = h; // to ensure numerically we hit h exactly - } - SkScalar x = 0; - for (int j = 0; j < meshWidth; j++) { - texsPtr->set(x, y); - texsPtr += 1; - x += dx; - } - texsPtr->set(w, y); - texsPtr += 1; - y += dy; - } - SkASSERT(texsPtr - texs == ptCount); - } - - // cons up indices - { - uint16_t* indexPtr = indices; - int index = 0; - for (int i = 0; i < meshHeight; i++) { - for (int j = 0; j < meshWidth; j++) { - // lower-left triangle - *indexPtr++ = index; - *indexPtr++ = index + meshWidth + 1; - *indexPtr++ = index + meshWidth + 2; - // upper-right triangle - *indexPtr++ = index; - *indexPtr++ = index + meshWidth + 2; - *indexPtr++ = index + 1; - // bump to the next cell - index += 1; - } - // bump to the next row - index += 1; - } - SkASSERT(indexPtr - indices == indexCount); - SkASSERT((char*)indexPtr - (char*)storage.get() == storageSize); - } - - // double-check that we have legal indices -#ifdef SK_DEBUG - { - for (int i = 0; i < indexCount; i++) { - SkASSERT((unsigned)indices[i] < (unsigned)ptCount); - } - } -#endif - - // cons-up a shader for the bitmap - SkPaint tmpPaint; - if (paint) { - tmpPaint = *paint; - } - SkShader* shader = SkShader::CreateBitmapShader(*bitmap, - SkShader::kClamp_TileMode, SkShader::kClamp_TileMode); - SkSafeUnref(tmpPaint.setShader(shader)); - - canvas->drawVertices(SkCanvas::kTriangles_VertexMode, ptCount, verts, - texs, (const SkColor*)colorA.ptr(), NULL, indices, - indexCount, tmpPaint); - } - - static void drawVertices(JNIEnv* env, jobject, jlong canvasHandle, - jint modeHandle, jint vertexCount, - jfloatArray jverts, jint vertIndex, - jfloatArray jtexs, jint texIndex, - jintArray jcolors, jint colorIndex, - jshortArray jindices, jint indexIndex, - jint indexCount, jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkCanvas::VertexMode mode = static_cast<SkCanvas::VertexMode>(modeHandle); - const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - - AutoJavaFloatArray vertA(env, jverts, vertIndex + vertexCount); - AutoJavaFloatArray texA(env, jtexs, texIndex + vertexCount); - AutoJavaIntArray colorA(env, jcolors, colorIndex + vertexCount); - AutoJavaShortArray indexA(env, jindices, indexIndex + indexCount); - - const int ptCount = vertexCount >> 1; - - SkPoint* verts; - SkPoint* texs = NULL; -#ifdef SK_SCALAR_IS_FLOAT - verts = (SkPoint*)(vertA.ptr() + vertIndex); - if (jtexs != NULL) { - texs = (SkPoint*)(texA.ptr() + texIndex); - } -#else - SkASSERT(false); -#endif - - const SkColor* colors = NULL; - const uint16_t* indices = NULL; - if (jcolors != NULL) { - colors = (const SkColor*)(colorA.ptr() + colorIndex); - } - if (jindices != NULL) { - indices = (const uint16_t*)(indexA.ptr() + indexIndex); - } - - canvas->drawVertices(mode, ptCount, verts, texs, colors, NULL, - indices, indexCount, *paint); - } - - - static void drawText___CIIFFIPaintTypeface(JNIEnv* env, jobject, jlong canvasHandle, - jcharArray text, jint index, jint count, - jfloat x, jfloat y, jint bidiFlags, - jlong paintHandle, jlong typefaceHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); - jchar* textArray = env->GetCharArrayElements(text, NULL); - drawTextWithGlyphs(canvas, textArray + index, 0, count, x, y, bidiFlags, paint, typeface); - env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); - } - - static void drawText__StringIIFFIPaintTypeface(JNIEnv* env, jobject, - jlong canvasHandle, jstring text, - jint start, jint end, - jfloat x, jfloat y, jint bidiFlags, - jlong paintHandle, jlong typefaceHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); - const jchar* textArray = env->GetStringChars(text, NULL); - drawTextWithGlyphs(canvas, textArray, start, end, x, y, bidiFlags, paint, typeface); - env->ReleaseStringChars(text, textArray); - } - - class DrawTextFunctor { - public: - DrawTextFunctor(const Layout& layout, SkCanvas* canvas, jfloat x, jfloat y, SkPaint* paint, - uint16_t* glyphs, SkPoint* pos) - : layout(layout), canvas(canvas), x(x), y(y), paint(paint), glyphs(glyphs), - pos(pos) { } - - void operator()(size_t start, size_t end) { - for (size_t i = start; i < end; i++) { - glyphs[i] = layout.getGlyphId(i); - pos[i].fX = x + layout.getX(i); - pos[i].fY = y + layout.getY(i); - } - canvas->drawPosText(glyphs + start, (end - start) << 1, pos + start, *paint); - } - private: - const Layout& layout; - SkCanvas* canvas; - jfloat x; - jfloat y; - SkPaint* paint; - uint16_t* glyphs; - SkPoint* pos; - }; - - static void drawGlyphsToSkia(SkCanvas* canvas, SkPaint* paint, const Layout& layout, float x, float y) { - size_t nGlyphs = layout.nGlyphs(); - uint16_t* glyphs = new uint16_t[nGlyphs]; - SkPoint* pos = new SkPoint[nGlyphs]; - - x += MinikinUtils::xOffsetForTextAlign(paint, layout); - SkPaint::Align align = paint->getTextAlign(); - paint->setTextAlign(SkPaint::kLeft_Align); - paint->setTextEncoding(SkPaint::kGlyphID_TextEncoding); - DrawTextFunctor f(layout, canvas, x, y, paint, glyphs, pos); - MinikinUtils::forFontRun(layout, paint, f); - doDrawTextDecorations(canvas, x, y, layout.getAdvance(), paint); - paint->setTextAlign(align); - delete[] glyphs; - delete[] pos; - } - - static void drawTextWithGlyphs(SkCanvas* canvas, const jchar* textArray, - int start, int end, - jfloat x, jfloat y, int bidiFlags, SkPaint* paint, TypefaceImpl* typeface) { - - jint count = end - start; - drawTextWithGlyphs(canvas, textArray + start, 0, count, count, x, y, bidiFlags, paint, - typeface); - } - - static void drawTextWithGlyphs(SkCanvas* canvas, const jchar* textArray, - int start, int count, int contextCount, - jfloat x, jfloat y, int bidiFlags, SkPaint* paint, TypefaceImpl* typeface) { - - Layout layout; - std::string css = MinikinUtils::setLayoutProperties(&layout, paint, bidiFlags, typeface); - layout.doLayout(textArray, start, count, contextCount, css); - drawGlyphsToSkia(canvas, paint, layout, x, y); - } - -// Same values used by Skia -#define kStdStrikeThru_Offset (-6.0f / 21.0f) -#define kStdUnderline_Offset (1.0f / 9.0f) -#define kStdUnderline_Thickness (1.0f / 18.0f) - - static void doDrawTextDecorations(SkCanvas* canvas, jfloat x, jfloat y, jfloat length, - SkPaint* paint) { - uint32_t flags; - SkDrawFilter* drawFilter = canvas->getDrawFilter(); - if (drawFilter) { - SkPaint paintCopy(*paint); - drawFilter->filter(&paintCopy, SkDrawFilter::kText_Type); - flags = paintCopy.getFlags(); - } else { - flags = paint->getFlags(); - } - if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) { - SkScalar left = x; - SkScalar right = x + length; - float textSize = paint->getTextSize(); - float strokeWidth = fmax(textSize * kStdUnderline_Thickness, 1.0f); - if (flags & SkPaint::kUnderlineText_Flag) { - SkScalar top = y + textSize * kStdUnderline_Offset - 0.5f * strokeWidth; - SkScalar bottom = y + textSize * kStdUnderline_Offset + 0.5f * strokeWidth; - canvas->drawRectCoords(left, top, right, bottom, *paint); - } - if (flags & SkPaint::kStrikeThruText_Flag) { - SkScalar top = y + textSize * kStdStrikeThru_Offset - 0.5f * strokeWidth; - SkScalar bottom = y + textSize * kStdStrikeThru_Offset + 0.5f * strokeWidth; - canvas->drawRectCoords(left, top, right, bottom, *paint); - } - } - } - - static void doDrawGlyphsPos(SkCanvas* canvas, const jchar* glyphArray, const jfloat* posArray, - int index, int count, jfloat x, jfloat y, SkPaint* paint) { - SkPoint* posPtr = new SkPoint[count]; - for (int indx = 0; indx < count; indx++) { - posPtr[indx].fX = x + posArray[indx * 2]; - posPtr[indx].fY = y + posArray[indx * 2 + 1]; - } - canvas->drawPosText(glyphArray, count << 1, posPtr, *paint); - delete[] posPtr; - } - - static void drawTextRun___CIIIIFFZPaintTypeface( - JNIEnv* env, jobject, jlong canvasHandle, jcharArray text, jint index, - jint count, jint contextIndex, jint contextCount, - jfloat x, jfloat y, jboolean isRtl, jlong paintHandle, jlong typefaceHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); - - int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR; - jchar* chars = env->GetCharArrayElements(text, NULL); - drawTextWithGlyphs(canvas, chars + contextIndex, index - contextIndex, - count, contextCount, x, y, bidiFlags, paint, typeface); - env->ReleaseCharArrayElements(text, chars, JNI_ABORT); - } - - static void drawTextRun__StringIIIIFFZPaintTypeface( - JNIEnv* env, jobject obj, jlong canvasHandle, jstring text, jint start, - jint end, jint contextStart, jint contextEnd, - jfloat x, jfloat y, jboolean isRtl, jlong paintHandle, jlong typefaceHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); - - int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR; - jint count = end - start; - jint contextCount = contextEnd - contextStart; - const jchar* chars = env->GetStringChars(text, NULL); - drawTextWithGlyphs(canvas, chars + contextStart, start - contextStart, - count, contextCount, x, y, bidiFlags, paint, typeface); - env->ReleaseStringChars(text, chars); - } - - static void drawPosText___CII_FPaint(JNIEnv* env, jobject, jlong canvasHandle, - jcharArray text, jint index, jint count, - jfloatArray pos, jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - jchar* textArray = text ? env->GetCharArrayElements(text, NULL) : NULL; - jsize textCount = text ? env->GetArrayLength(text) : NULL; - float* posArray = pos ? env->GetFloatArrayElements(pos, NULL) : NULL; - int posCount = pos ? env->GetArrayLength(pos) >> 1: 0; - SkPoint* posPtr = posCount > 0 ? new SkPoint[posCount] : NULL; - int indx; - for (indx = 0; indx < posCount; indx++) { - posPtr[indx].fX = posArray[indx << 1]; - posPtr[indx].fY = posArray[(indx << 1) + 1]; - } - - SkPaint::TextEncoding encoding = paint->getTextEncoding(); - paint->setTextEncoding(SkPaint::kUTF16_TextEncoding); - canvas->drawPosText(textArray + index, count << 1, posPtr, *paint); - paint->setTextEncoding(encoding); - - if (text) { - env->ReleaseCharArrayElements(text, textArray, 0); - } - if (pos) { - env->ReleaseFloatArrayElements(pos, posArray, 0); - } - delete[] posPtr; - } - - static void drawPosText__String_FPaint(JNIEnv* env, jobject, - jlong canvasHandle, jstring text, - jfloatArray pos, - jlong paintHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - const void* text_ = text ? env->GetStringChars(text, NULL) : NULL; - int byteLength = text ? env->GetStringLength(text) : 0; - float* posArray = pos ? env->GetFloatArrayElements(pos, NULL) : NULL; - int posCount = pos ? env->GetArrayLength(pos) >> 1: 0; - SkPoint* posPtr = posCount > 0 ? new SkPoint[posCount] : NULL; - - for (int indx = 0; indx < posCount; indx++) { - posPtr[indx].fX = posArray[indx << 1]; - posPtr[indx].fY = posArray[(indx << 1) + 1]; - } - - SkPaint::TextEncoding encoding = paint->getTextEncoding(); - paint->setTextEncoding(SkPaint::kUTF16_TextEncoding); - canvas->drawPosText(text_, byteLength << 1, posPtr, *paint); - paint->setTextEncoding(encoding); - - if (text) { - env->ReleaseStringChars(text, (const jchar*) text_); - } - if (pos) { - env->ReleaseFloatArrayElements(pos, posArray, 0); - } - delete[] posPtr; - } - - class DrawTextOnPathFunctor { - public: - DrawTextOnPathFunctor(const Layout& layout, SkCanvas* canvas, float hOffset, - float vOffset, SkPaint* paint, SkPath* path) - : layout(layout), canvas(canvas), hOffset(hOffset), vOffset(vOffset), - paint(paint), path(path) { - } - void operator()(size_t start, size_t end) { - uint16_t glyphs[1]; - for (size_t i = start; i < end; i++) { - glyphs[0] = layout.getGlyphId(i); - float x = hOffset + layout.getX(i); - float y = vOffset + layout.getY(i); - canvas->drawTextOnPathHV(glyphs, sizeof(glyphs), *path, x, y, *paint); - } - } - private: - const Layout& layout; - SkCanvas* canvas; - float hOffset; - float vOffset; - SkPaint* paint; - SkPath* path; - }; - - static void doDrawTextOnPath(SkPaint* paint, const jchar* text, int count, int bidiFlags, - float hOffset, float vOffset, SkPath* path, SkCanvas* canvas, TypefaceImpl* typeface) { - Layout layout; - std::string css = MinikinUtils::setLayoutProperties(&layout, paint, bidiFlags, typeface); - layout.doLayout(text, 0, count, count, css); - hOffset += MinikinUtils::hOffsetForTextAlign(paint, layout, *path); - // Set align to left for drawing, as we don't want individual - // glyphs centered or right-aligned; the offset above takes - // care of all alignment. - SkPaint::Align align = paint->getTextAlign(); - paint->setTextAlign(SkPaint::kLeft_Align); - - DrawTextOnPathFunctor f(layout, canvas, hOffset, vOffset, paint, path); - MinikinUtils::forFontRun(layout, paint, f); - paint->setTextAlign(align); - } - - static void drawTextOnPath___CIIPathFFPaint(JNIEnv* env, jobject, - jlong canvasHandle, jcharArray text, jint index, jint count, - jlong pathHandle, jfloat hOffset, jfloat vOffset, jint bidiFlags, jlong paintHandle, - jlong typefaceHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPath* path = reinterpret_cast<SkPath*>(pathHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); - - jchar* textArray = env->GetCharArrayElements(text, NULL); - doDrawTextOnPath(paint, textArray + index, count, bidiFlags, hOffset, vOffset, - path, canvas, typeface); - env->ReleaseCharArrayElements(text, textArray, 0); - } - - static void drawTextOnPath__StringPathFFPaint(JNIEnv* env, jobject, - jlong canvasHandle, jstring text, jlong pathHandle, - jfloat hOffset, jfloat vOffset, jint bidiFlags, jlong paintHandle, - jlong typefaceHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkPath* path = reinterpret_cast<SkPath*>(pathHandle); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); - - const jchar* text_ = env->GetStringChars(text, NULL); - int count = env->GetStringLength(text); - doDrawTextOnPath(paint, text_, count, bidiFlags, hOffset, vOffset, - path, canvas, typeface); - env->ReleaseStringChars(text, text_); - } - - - // This function is a mirror of SkCanvas::getClipBounds except that it does - // not outset the edge of the clip to account for anti-aliasing. There is - // a skia bug to investigate pushing this logic into back into skia. - // (see https://code.google.com/p/skia/issues/detail?id=1303) - static bool getHardClipBounds(SkCanvas* canvas, SkRect* bounds) { - SkIRect ibounds; - if (!canvas->getClipDeviceBounds(&ibounds)) { - return false; - } - - SkMatrix inverse; - // if we can't invert the CTM, we can't return local clip bounds - if (!canvas->getTotalMatrix().invert(&inverse)) { - if (bounds) { - bounds->setEmpty(); - } - return false; - } - - if (NULL != bounds) { - SkRect r = SkRect::Make(ibounds); - inverse.mapRect(bounds, r); - } - return true; - } - - static jboolean getClipBounds(JNIEnv* env, jobject, jlong canvasHandle, - jobject bounds) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkRect r; - SkIRect ir; - bool result = getHardClipBounds(canvas, &r); - - if (!result) { - r.setEmpty(); - } - r.round(&ir); - - (void)GraphicsJNI::irect_to_jrect(ir, env, bounds); - return result ? JNI_TRUE : JNI_FALSE; - } - - static void getCTM(JNIEnv* env, jobject, jlong canvasHandle, - jlong matrixHandle) { - SkCanvas* canvas = getNativeCanvas(canvasHandle); - SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); - *matrix = canvas->getTotalMatrix(); - } -}; - -static JNINativeMethod gCanvasMethods[] = { - {"finalizer", "(J)V", (void*) SkCanvasGlue::finalizer}, - {"initRaster", "(J)J", (void*) SkCanvasGlue::initRaster}, - {"initCanvas", "(J)J", (void*) SkCanvasGlue::initCanvas}, - {"native_setBitmap", "(JJZ)V", (void*) SkCanvasGlue::setBitmap}, - {"native_isOpaque","(J)Z", (void*) SkCanvasGlue::isOpaque}, - {"native_getWidth","(J)I", (void*) SkCanvasGlue::getWidth}, - {"native_getHeight","(J)I", (void*) SkCanvasGlue::getHeight}, - {"native_save","(JI)I", (void*) SkCanvasGlue::save}, - {"native_saveLayer","(JFFFFJI)I", (void*) SkCanvasGlue::saveLayer}, - {"native_saveLayerAlpha","(JFFFFII)I", (void*) SkCanvasGlue::saveLayerAlpha}, - {"native_restore","(J)V", (void*) SkCanvasGlue::restore}, - {"native_getSaveCount","(J)I", (void*) SkCanvasGlue::getSaveCount}, - {"native_restoreToCount","(JI)V", (void*) SkCanvasGlue::restoreToCount}, - {"native_translate","(JFF)V", (void*) SkCanvasGlue::translate}, - {"native_scale","(JFF)V", (void*) SkCanvasGlue::scale__FF}, - {"native_rotate","(JF)V", (void*) SkCanvasGlue::rotate__F}, - {"native_skew","(JFF)V", (void*) SkCanvasGlue::skew__FF}, - {"native_concat","(JJ)V", (void*) SkCanvasGlue::concat}, - {"native_setMatrix","(JJ)V", (void*) SkCanvasGlue::setMatrix}, - {"native_clipRect","(JFFFFI)Z", (void*) SkCanvasGlue::clipRect}, - {"native_clipPath","(JJI)Z", (void*) SkCanvasGlue::clipPath}, - {"native_clipRegion","(JJI)Z", (void*) SkCanvasGlue::clipRegion}, - {"nativeSetDrawFilter", "(JJ)V", (void*) SkCanvasGlue::setDrawFilter}, - {"native_getClipBounds","(JLandroid/graphics/Rect;)Z", - (void*) SkCanvasGlue::getClipBounds}, - {"native_getCTM", "(JJ)V", (void*)SkCanvasGlue::getCTM}, - {"native_quickReject","(JJ)Z", (void*) SkCanvasGlue::quickReject__Path}, - {"native_quickReject","(JFFFF)Z", (void*)SkCanvasGlue::quickReject__FFFF}, - {"native_drawRGB","(JIII)V", (void*) SkCanvasGlue::drawRGB}, - {"native_drawARGB","(JIIII)V", (void*) SkCanvasGlue::drawARGB}, - {"native_drawColor","(JI)V", (void*) SkCanvasGlue::drawColor__I}, - {"native_drawColor","(JII)V", (void*) SkCanvasGlue::drawColor__II}, - {"native_drawPaint","(JJ)V", (void*) SkCanvasGlue::drawPaint}, - {"native_drawPoint", "(JFFJ)V", (void*) SkCanvasGlue::drawPoint}, - {"native_drawPoints", "(J[FIIJ)V", (void*) SkCanvasGlue::drawPoints}, - {"native_drawLines", "(J[FIIJ)V", (void*) SkCanvasGlue::drawLines}, - {"native_drawLine","(JFFFFJ)V", (void*) SkCanvasGlue::drawLine__FFFFPaint}, - {"native_drawRect","(JFFFFJ)V", (void*) SkCanvasGlue::drawRect__FFFFPaint}, - {"native_drawOval","(JFFFFJ)V", (void*) SkCanvasGlue::drawOval}, - {"native_drawCircle","(JFFFJ)V", (void*) SkCanvasGlue::drawCircle}, - {"native_drawArc","(JFFFFFFZJ)V", (void*) SkCanvasGlue::drawArc}, - {"native_drawRoundRect","(JFFFFFFJ)V", - (void*) SkCanvasGlue::drawRoundRect}, - {"native_drawPath","(JJJ)V", (void*) SkCanvasGlue::drawPath}, - {"native_drawBitmap","(JJFFJIII)V", - (void*) SkCanvasGlue::drawBitmap__BitmapFFPaint}, - {"native_drawBitmap","(JJLandroid/graphics/Rect;Landroid/graphics/RectF;JII)V", - (void*) SkCanvasGlue::drawBitmapRF}, - {"native_drawBitmap","(JJLandroid/graphics/Rect;Landroid/graphics/Rect;JII)V", - (void*) SkCanvasGlue::drawBitmapRR}, - {"native_drawBitmap", "(J[IIIFFIIZJ)V", - (void*)SkCanvasGlue::drawBitmapArray}, - {"nativeDrawBitmapMatrix", "(JJJJ)V", - (void*)SkCanvasGlue::drawBitmapMatrix}, - {"nativeDrawBitmapMesh", "(JJII[FI[IIJ)V", - (void*)SkCanvasGlue::drawBitmapMesh}, - {"nativeDrawVertices", "(JII[FI[FI[II[SIIJ)V", - (void*)SkCanvasGlue::drawVertices}, - {"native_drawText","(J[CIIFFIJJ)V", - (void*) SkCanvasGlue::drawText___CIIFFIPaintTypeface}, - {"native_drawText","(JLjava/lang/String;IIFFIJJ)V", - (void*) SkCanvasGlue::drawText__StringIIFFIPaintTypeface}, - {"native_drawTextRun","(J[CIIIIFFZJJ)V", - (void*) SkCanvasGlue::drawTextRun___CIIIIFFZPaintTypeface}, - {"native_drawTextRun","(JLjava/lang/String;IIIIFFZJJ)V", - (void*) SkCanvasGlue::drawTextRun__StringIIIIFFZPaintTypeface}, - {"native_drawTextOnPath","(J[CIIJFFIJJ)V", - (void*) SkCanvasGlue::drawTextOnPath___CIIPathFFPaint}, - {"native_drawTextOnPath","(JLjava/lang/String;JFFIJJ)V", - (void*) SkCanvasGlue::drawTextOnPath__StringPathFFPaint}, - - {"freeCaches", "()V", (void*) SkCanvasGlue::freeCaches}, - - {"freeTextLayoutCaches", "()V", (void*) SkCanvasGlue::freeTextLayoutCaches} -}; - -/////////////////////////////////////////////////////////////////////////////// - -#include <android_runtime/AndroidRuntime.h> - -#define REG(env, name, array) \ - result = android::AndroidRuntime::registerNativeMethods(env, name, array, \ - SK_ARRAY_COUNT(array)); \ - if (result < 0) return result - -int register_android_graphics_Canvas(JNIEnv* env) { - int result; - - REG(env, "android/graphics/Canvas", gCanvasMethods); - - return result; -} - -} // namespace android - -// GraphicsJNI helper for external clients. -// We keep the implementation here to avoid exposing NativeCanvasWrapper -// externally. -SkCanvas* GraphicsJNI::getNativeCanvas(jlong nativeHandle) { - return android::SkCanvasGlue::getNativeCanvas(nativeHandle); -} |