| /* |
| * Copyright (C) 2014 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 "core_jni_helpers.h" |
| |
| #include <androidfw/ResourceTypes.h> |
| #include <hwui/Canvas.h> |
| #include <hwui/Paint.h> |
| #include <hwui/Typeface.h> |
| #include <minikin/Layout.h> |
| |
| #include "Bitmap.h" |
| #include "SkDrawFilter.h" |
| #include "SkGraphics.h" |
| #include "SkRegion.h" |
| #include "SkVertices.h" |
| |
| namespace android { |
| |
| namespace CanvasJNI { |
| |
| static Canvas* get_canvas(jlong canvasHandle) { |
| return reinterpret_cast<Canvas*>(canvasHandle); |
| } |
| |
| static void delete_canvas(Canvas* canvas) { |
| delete canvas; |
| } |
| |
| static jlong getNativeFinalizer(JNIEnv* env, jobject clazz) { |
| return static_cast<jlong>(reinterpret_cast<uintptr_t>(&delete_canvas)); |
| } |
| |
| // Native wrapper constructor used by Canvas(Bitmap) |
| static jlong initRaster(JNIEnv* env, jobject, jobject jbitmap) { |
| SkBitmap bitmap; |
| if (jbitmap != NULL) { |
| GraphicsJNI::getSkBitmap(env, jbitmap, &bitmap); |
| } |
| return reinterpret_cast<jlong>(Canvas::create_canvas(bitmap)); |
| } |
| |
| // 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, jobject jbitmap) { |
| SkBitmap bitmap; |
| if (jbitmap != NULL) { |
| GraphicsJNI::getSkBitmap(env, jbitmap, &bitmap); |
| } |
| get_canvas(canvasHandle)->setBitmap(bitmap); |
| } |
| |
| static jboolean isOpaque(jlong canvasHandle) { |
| return get_canvas(canvasHandle)->isOpaque() ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static jint getWidth(jlong canvasHandle) { |
| return static_cast<jint>(get_canvas(canvasHandle)->width()); |
| } |
| |
| static jint getHeight(jlong canvasHandle) { |
| return static_cast<jint>(get_canvas(canvasHandle)->height()); |
| } |
| |
| static void setHighContrastText(jlong canvasHandle, jboolean highContrastText) { |
| Canvas* canvas = get_canvas(canvasHandle); |
| canvas->setHighContrastText(highContrastText); |
| } |
| |
| static jint save(jlong canvasHandle, jint flagsHandle) { |
| SaveFlags::Flags flags = static_cast<SaveFlags::Flags>(flagsHandle); |
| return static_cast<jint>(get_canvas(canvasHandle)->save(flags)); |
| } |
| |
| static jint saveLayer(jlong canvasHandle, jfloat l, jfloat t, |
| jfloat r, jfloat b, jlong paintHandle, jint flagsHandle) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| SaveFlags::Flags flags = static_cast<SaveFlags::Flags>(flagsHandle); |
| return static_cast<jint>(get_canvas(canvasHandle)->saveLayer(l, t, r, b, paint, flags)); |
| } |
| |
| static jint saveLayerAlpha(jlong canvasHandle, jfloat l, jfloat t, |
| jfloat r, jfloat b, jint alpha, jint flagsHandle) { |
| SaveFlags::Flags flags = static_cast<SaveFlags::Flags>(flagsHandle); |
| return static_cast<jint>(get_canvas(canvasHandle)->saveLayerAlpha(l, t, r, b, alpha, flags)); |
| } |
| |
| static bool restore(jlong canvasHandle) { |
| Canvas* canvas = get_canvas(canvasHandle); |
| if (canvas->getSaveCount() <= 1) { |
| return false; // cannot restore anymore |
| } |
| canvas->restore(); |
| return true; // success |
| } |
| |
| static void restoreToCount(jlong canvasHandle, jint saveCount) { |
| Canvas* canvas = get_canvas(canvasHandle); |
| canvas->restoreToCount(saveCount); |
| } |
| |
| static jint getSaveCount(jlong canvasHandle) { |
| return static_cast<jint>(get_canvas(canvasHandle)->getSaveCount()); |
| } |
| |
| static void getMatrix(jlong canvasHandle, jlong matrixHandle) { |
| SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); |
| get_canvas(canvasHandle)->getMatrix(matrix); |
| } |
| |
| static void setMatrix(jlong canvasHandle, jlong matrixHandle) { |
| const SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); |
| get_canvas(canvasHandle)->setMatrix(matrix ? *matrix : SkMatrix::I()); |
| } |
| |
| static void concat(jlong canvasHandle, jlong matrixHandle) { |
| const SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); |
| get_canvas(canvasHandle)->concat(*matrix); |
| } |
| |
| static void rotate(jlong canvasHandle, jfloat degrees) { |
| get_canvas(canvasHandle)->rotate(degrees); |
| } |
| |
| static void scale(jlong canvasHandle, jfloat sx, jfloat sy) { |
| get_canvas(canvasHandle)->scale(sx, sy); |
| } |
| |
| static void skew(jlong canvasHandle, jfloat sx, jfloat sy) { |
| get_canvas(canvasHandle)->skew(sx, sy); |
| } |
| |
| static void translate(jlong canvasHandle, jfloat dx, jfloat dy) { |
| get_canvas(canvasHandle)->translate(dx, dy); |
| } |
| |
| static jboolean getClipBounds(JNIEnv* env, jobject, jlong canvasHandle, jobject bounds) { |
| SkRect r; |
| SkIRect ir; |
| bool result = get_canvas(canvasHandle)->getClipBounds(&r); |
| |
| if (!result) { |
| r.setEmpty(); |
| } |
| r.round(&ir); |
| |
| (void)GraphicsJNI::irect_to_jrect(ir, env, bounds); |
| return result ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static jboolean quickRejectRect(jlong canvasHandle, |
| jfloat left, jfloat top, jfloat right, jfloat bottom) { |
| bool result = get_canvas(canvasHandle)->quickRejectRect(left, top, right, bottom); |
| return result ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static jboolean quickRejectPath(jlong canvasHandle, jlong pathHandle) { |
| SkPath* path = reinterpret_cast<SkPath*>(pathHandle); |
| bool result = get_canvas(canvasHandle)->quickRejectPath(*path); |
| return result ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| // SkRegion::Op and SkClipOp are numerically identical, so we can freely cast |
| // from one to the other (though SkClipOp is destined to become a strict subset) |
| static_assert(SkRegion::kDifference_Op == static_cast<SkRegion::Op>(SkClipOp::kDifference), ""); |
| static_assert(SkRegion::kIntersect_Op == static_cast<SkRegion::Op>(SkClipOp::kIntersect), ""); |
| static_assert(SkRegion::kUnion_Op == static_cast<SkRegion::Op>(SkClipOp::kUnion_deprecated), ""); |
| static_assert(SkRegion::kXOR_Op == static_cast<SkRegion::Op>(SkClipOp::kXOR_deprecated), ""); |
| static_assert(SkRegion::kReverseDifference_Op == static_cast<SkRegion::Op>(SkClipOp::kReverseDifference_deprecated), ""); |
| static_assert(SkRegion::kReplace_Op == static_cast<SkRegion::Op>(SkClipOp::kReplace_deprecated), ""); |
| |
| static SkClipOp opHandleToClipOp(jint opHandle) { |
| // The opHandle is defined in Canvas.java to be Region::Op |
| SkRegion::Op rgnOp = static_cast<SkRegion::Op>(opHandle); |
| |
| // In the future, when we no longer support the wide range of ops (e.g. Union, Xor) |
| // this function can perform a range check and throw an unsupported-exception. |
| // e.g. if (rgnOp != kIntersect && rgnOp != kDifference) throw... |
| |
| // Skia now takes a different type, SkClipOp, as the parameter to clipping calls |
| // This type is binary compatible with SkRegion::Op, so a static_cast<> is safe. |
| return static_cast<SkClipOp>(rgnOp); |
| } |
| |
| static jboolean clipRect(jlong canvasHandle, jfloat l, jfloat t, |
| jfloat r, jfloat b, jint opHandle) { |
| bool nonEmptyClip = get_canvas(canvasHandle)->clipRect(l, t, r, b, |
| opHandleToClipOp(opHandle)); |
| return nonEmptyClip ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static jboolean clipPath(jlong canvasHandle, jlong pathHandle, |
| jint opHandle) { |
| SkPath* path = reinterpret_cast<SkPath*>(pathHandle); |
| bool nonEmptyClip = get_canvas(canvasHandle)->clipPath(path, opHandleToClipOp(opHandle)); |
| return nonEmptyClip ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static void drawColor(JNIEnv* env, jobject, jlong canvasHandle, jint color, jint modeHandle) { |
| SkBlendMode mode = static_cast<SkBlendMode>(modeHandle); |
| get_canvas(canvasHandle)->drawColor(color, mode); |
| } |
| |
| static void drawPaint(JNIEnv* env, jobject, jlong canvasHandle, jlong paintHandle) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawPaint(*paint); |
| } |
| |
| static void drawPoint(JNIEnv*, jobject, jlong canvasHandle, jfloat x, jfloat y, |
| jlong paintHandle) { |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawPoint(x, y, *paint); |
| } |
| |
| static void drawPoints(JNIEnv* env, jobject, jlong canvasHandle, jfloatArray jptsArray, |
| jint offset, jint count, jlong paintHandle) { |
| NPE_CHECK_RETURN_VOID(env, jptsArray); |
| AutoJavaFloatArray autoPts(env, jptsArray); |
| float* floats = autoPts.ptr(); |
| const int length = autoPts.length(); |
| |
| if ((offset | count) < 0 || offset + count > length) { |
| doThrowAIOOBE(env); |
| return; |
| } |
| |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawPoints(floats + offset, count, *paint); |
| } |
| |
| static void drawLine(JNIEnv* env, jobject, jlong canvasHandle, jfloat startX, jfloat startY, |
| jfloat stopX, jfloat stopY, jlong paintHandle) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawLine(startX, startY, stopX, stopY, *paint); |
| } |
| |
| static void drawLines(JNIEnv* env, jobject, jlong canvasHandle, jfloatArray jptsArray, |
| jint offset, jint count, jlong paintHandle) { |
| NPE_CHECK_RETURN_VOID(env, jptsArray); |
| AutoJavaFloatArray autoPts(env, jptsArray); |
| float* floats = autoPts.ptr(); |
| const int length = autoPts.length(); |
| |
| if ((offset | count) < 0 || offset + count > length) { |
| doThrowAIOOBE(env); |
| return; |
| } |
| |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawLines(floats + offset, count, *paint); |
| } |
| |
| static void drawRect(JNIEnv* env, jobject, jlong canvasHandle, jfloat left, jfloat top, |
| jfloat right, jfloat bottom, jlong paintHandle) { |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawRect(left, top, right, bottom, *paint); |
| } |
| |
| static void drawRegion(JNIEnv* env, jobject, jlong canvasHandle, jlong regionHandle, |
| jlong paintHandle) { |
| const SkRegion* region = reinterpret_cast<SkRegion*>(regionHandle); |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawRegion(*region, *paint); |
| } |
| |
| static void drawRoundRect(JNIEnv* env, jobject, jlong canvasHandle, jfloat left, jfloat top, |
| jfloat right, jfloat bottom, jfloat rx, jfloat ry, jlong paintHandle) { |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawRoundRect(left, top, right, bottom, rx, ry, *paint); |
| } |
| |
| static void drawCircle(JNIEnv* env, jobject, jlong canvasHandle, jfloat cx, jfloat cy, |
| jfloat radius, jlong paintHandle) { |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawCircle(cx, cy, radius, *paint); |
| } |
| |
| static void drawOval(JNIEnv* env, jobject, jlong canvasHandle, jfloat left, jfloat top, |
| jfloat right, jfloat bottom, jlong paintHandle) { |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawOval(left, top, right, bottom, *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) { |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawArc(left, top, right, bottom, startAngle, sweepAngle, |
| useCenter, *paint); |
| } |
| |
| static void drawPath(JNIEnv* env, jobject, jlong canvasHandle, jlong pathHandle, |
| jlong paintHandle) { |
| const SkPath* path = reinterpret_cast<SkPath*>(pathHandle); |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawPath(*path, *paint); |
| } |
| |
| static void drawVertices(JNIEnv* env, jobject, jlong canvasHandle, |
| jint modeHandle, jint floatCount, |
| jfloatArray jverts, jint vertIndex, |
| jfloatArray jtexs, jint texIndex, |
| jintArray jcolors, jint colorIndex, |
| jshortArray jindices, jint indexIndex, |
| jint indexCount, jlong paintHandle) { |
| AutoJavaFloatArray vertA(env, jverts, vertIndex + floatCount); |
| AutoJavaFloatArray texA(env, jtexs, texIndex + floatCount); |
| AutoJavaIntArray colorA(env, jcolors, colorIndex + floatCount); |
| AutoJavaShortArray indexA(env, jindices, indexIndex + indexCount); |
| |
| const float* verts = vertA.ptr() + vertIndex; |
| const float* texs = texA.ptr() + vertIndex; |
| const int* colors = NULL; |
| const uint16_t* indices = NULL; |
| |
| if (jcolors != NULL) { |
| colors = colorA.ptr() + colorIndex; |
| } |
| if (jindices != NULL) { |
| indices = (const uint16_t*)(indexA.ptr() + indexIndex); |
| } |
| |
| int vertexCount = floatCount >> 1; // 2 floats per SkPoint |
| SkVertices::VertexMode mode = static_cast<SkVertices::VertexMode>(modeHandle); |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawVertices(SkVertices::MakeCopy(mode, vertexCount, |
| reinterpret_cast<const SkPoint*>(verts), |
| reinterpret_cast<const SkPoint*>(texs), |
| reinterpret_cast<const SkColor*>(colors), |
| indexCount, indices).get(), |
| SkBlendMode::kModulate, *paint); |
| } |
| |
| static void drawNinePatch(JNIEnv* env, jobject, jlong canvasHandle, jlong bitmapHandle, |
| jlong chunkHandle, jfloat left, jfloat top, jfloat right, jfloat bottom, |
| jlong paintHandle, jint dstDensity, jint srcDensity) { |
| |
| Canvas* canvas = get_canvas(canvasHandle); |
| Bitmap& bitmap = android::bitmap::toBitmap(env, bitmapHandle); |
| const android::Res_png_9patch* chunk = reinterpret_cast<android::Res_png_9patch*>(chunkHandle); |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| |
| if (CC_LIKELY(dstDensity == srcDensity || dstDensity == 0 || srcDensity == 0)) { |
| canvas->drawNinePatch(bitmap, *chunk, left, top, right, bottom, paint); |
| } else { |
| canvas->save(SaveFlags::MatrixClip); |
| |
| SkScalar scale = dstDensity / (float)srcDensity; |
| canvas->translate(left, top); |
| canvas->scale(scale, scale); |
| |
| Paint filteredPaint; |
| if (paint) { |
| filteredPaint = *paint; |
| } |
| filteredPaint.setFilterQuality(kLow_SkFilterQuality); |
| |
| canvas->drawNinePatch(bitmap, *chunk, 0, 0, (right-left)/scale, (bottom-top)/scale, |
| &filteredPaint); |
| |
| canvas->restore(); |
| } |
| } |
| |
| static void drawBitmap(JNIEnv* env, jobject, jlong canvasHandle, jobject jbitmap, |
| jfloat left, jfloat top, jlong paintHandle, jint canvasDensity, |
| jint screenDensity, jint bitmapDensity) { |
| Canvas* canvas = get_canvas(canvasHandle); |
| Bitmap& bitmap = android::bitmap::toBitmap(env, jbitmap); |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| |
| if (canvasDensity == bitmapDensity || canvasDensity == 0 || bitmapDensity == 0) { |
| if (screenDensity != 0 && screenDensity != bitmapDensity) { |
| Paint filteredPaint; |
| if (paint) { |
| filteredPaint = *paint; |
| } |
| filteredPaint.setFilterQuality(kLow_SkFilterQuality); |
| canvas->drawBitmap(bitmap, left, top, &filteredPaint); |
| } else { |
| canvas->drawBitmap(bitmap, left, top, paint); |
| } |
| } else { |
| canvas->save(SaveFlags::MatrixClip); |
| SkScalar scale = canvasDensity / (float)bitmapDensity; |
| canvas->translate(left, top); |
| canvas->scale(scale, scale); |
| |
| Paint filteredPaint; |
| if (paint) { |
| filteredPaint = *paint; |
| } |
| filteredPaint.setFilterQuality(kLow_SkFilterQuality); |
| |
| canvas->drawBitmap(bitmap, 0, 0, &filteredPaint); |
| canvas->restore(); |
| } |
| } |
| |
| static void drawBitmapMatrix(JNIEnv* env, jobject, jlong canvasHandle, jobject jbitmap, |
| jlong matrixHandle, jlong paintHandle) { |
| const SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| Bitmap& bitmap = android::bitmap::toBitmap(env, jbitmap); |
| get_canvas(canvasHandle)->drawBitmap(bitmap, *matrix, paint); |
| } |
| |
| static void drawBitmapRect(JNIEnv* env, jobject, jlong canvasHandle, jobject jbitmap, |
| float srcLeft, float srcTop, float srcRight, float srcBottom, |
| float dstLeft, float dstTop, float dstRight, float dstBottom, |
| jlong paintHandle, jint screenDensity, jint bitmapDensity) { |
| Canvas* canvas = get_canvas(canvasHandle); |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| |
| Bitmap& bitmap = android::bitmap::toBitmap(env, jbitmap); |
| if (screenDensity != 0 && screenDensity != bitmapDensity) { |
| Paint filteredPaint; |
| if (paint) { |
| filteredPaint = *paint; |
| } |
| filteredPaint.setFilterQuality(kLow_SkFilterQuality); |
| canvas->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom, |
| dstLeft, dstTop, dstRight, dstBottom, &filteredPaint); |
| } else { |
| canvas->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom, |
| dstLeft, dstTop, dstRight, dstBottom, paint); |
| } |
| } |
| |
| 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) { |
| // Note: If hasAlpha is false, kRGB_565_SkColorType will be used, which will |
| // correct the alphaType to kOpaque_SkAlphaType. |
| SkImageInfo info = SkImageInfo::MakeN32(width, height, kPremul_SkAlphaType, |
| GraphicsJNI::defaultColorSpace()); |
| SkBitmap bitmap; |
| bitmap.setInfo(info); |
| sk_sp<Bitmap> androidBitmap = Bitmap::allocateHeapBitmap(&bitmap); |
| if (!androidBitmap) { |
| return; |
| } |
| |
| if (!GraphicsJNI::SetPixels(env, jcolors, offset, stride, 0, 0, width, height, bitmap)) { |
| return; |
| } |
| |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| get_canvas(canvasHandle)->drawBitmap(*androidBitmap, x, y, paint); |
| } |
| |
| static void drawBitmapMesh(JNIEnv* env, jobject, jlong canvasHandle, jobject jbitmap, |
| jint meshWidth, jint meshHeight, jfloatArray jverts, |
| jint vertIndex, jintArray jcolors, jint colorIndex, jlong paintHandle) { |
| const int ptCount = (meshWidth + 1) * (meshHeight + 1); |
| AutoJavaFloatArray vertA(env, jverts, vertIndex + (ptCount << 1)); |
| AutoJavaIntArray colorA(env, jcolors, colorIndex + ptCount); |
| |
| const Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| Bitmap& bitmap = android::bitmap::toBitmap(env, jbitmap); |
| get_canvas(canvasHandle)->drawBitmapMesh(bitmap, meshWidth, meshHeight, |
| vertA.ptr(), colorA.ptr(), paint); |
| } |
| |
| static void drawTextChars(JNIEnv* env, jobject, jlong canvasHandle, jcharArray text, |
| jint index, jint count, jfloat x, jfloat y, jint bidiFlags, |
| jlong paintHandle, jlong typefaceHandle) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle); |
| jchar* jchars = env->GetCharArrayElements(text, NULL); |
| get_canvas(canvasHandle)->drawText(jchars + index, 0, count, count, x, y, |
| bidiFlags, *paint, typeface); |
| env->ReleaseCharArrayElements(text, jchars, JNI_ABORT); |
| } |
| |
| static void drawTextString(JNIEnv* env, jobject, jlong canvasHandle, jstring text, |
| jint start, jint end, jfloat x, jfloat y, jint bidiFlags, |
| jlong paintHandle, jlong typefaceHandle) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle); |
| const int count = end - start; |
| const jchar* jchars = env->GetStringChars(text, NULL); |
| get_canvas(canvasHandle)->drawText(jchars + start, 0, count, count, x, y, |
| bidiFlags, *paint, typeface); |
| env->ReleaseStringChars(text, jchars); |
| } |
| |
| static void drawTextRunChars(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) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle); |
| |
| const int bidiFlags = isRtl ? minikin::kBidi_Force_RTL : minikin::kBidi_Force_LTR; |
| jchar* jchars = env->GetCharArrayElements(text, NULL); |
| get_canvas(canvasHandle)->drawText(jchars + contextIndex, index - contextIndex, count, |
| contextCount, x, y, bidiFlags, *paint, typeface); |
| env->ReleaseCharArrayElements(text, jchars, JNI_ABORT); |
| } |
| |
| static void drawTextRunString(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) { |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle); |
| |
| int bidiFlags = isRtl ? minikin::kBidi_Force_RTL : minikin::kBidi_Force_LTR; |
| jint count = end - start; |
| jint contextCount = contextEnd - contextStart; |
| const jchar* jchars = env->GetStringChars(text, NULL); |
| get_canvas(canvasHandle)->drawText(jchars + contextStart, start - contextStart, count, |
| contextCount, x, y, bidiFlags, *paint, typeface); |
| env->ReleaseStringChars(text, jchars); |
| } |
| |
| static void drawTextOnPathChars(JNIEnv* env, jobject, jlong canvasHandle, jcharArray text, |
| jint index, jint count, jlong pathHandle, jfloat hOffset, |
| jfloat vOffset, jint bidiFlags, jlong paintHandle, |
| jlong typefaceHandle) { |
| SkPath* path = reinterpret_cast<SkPath*>(pathHandle); |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle); |
| |
| jchar* jchars = env->GetCharArrayElements(text, NULL); |
| |
| get_canvas(canvasHandle)->drawTextOnPath(jchars + index, count, bidiFlags, *path, |
| hOffset, vOffset, *paint, typeface); |
| |
| env->ReleaseCharArrayElements(text, jchars, 0); |
| } |
| |
| static void drawTextOnPathString(JNIEnv* env, jobject, jlong canvasHandle, jstring text, |
| jlong pathHandle, jfloat hOffset, jfloat vOffset, |
| jint bidiFlags, jlong paintHandle, jlong typefaceHandle) { |
| SkPath* path = reinterpret_cast<SkPath*>(pathHandle); |
| Paint* paint = reinterpret_cast<Paint*>(paintHandle); |
| Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle); |
| |
| const jchar* jchars = env->GetStringChars(text, NULL); |
| int count = env->GetStringLength(text); |
| |
| get_canvas(canvasHandle)->drawTextOnPath(jchars, count, bidiFlags, *path, |
| hOffset, vOffset, *paint, typeface); |
| |
| env->ReleaseStringChars(text, jchars); |
| } |
| |
| static void setDrawFilter(jlong canvasHandle, jlong filterHandle) { |
| get_canvas(canvasHandle)->setDrawFilter(reinterpret_cast<SkDrawFilter*>(filterHandle)); |
| } |
| |
| static void freeCaches(JNIEnv* env, jobject) { |
| SkGraphics::PurgeFontCache(); |
| } |
| |
| static void freeTextLayoutCaches(JNIEnv* env, jobject) { |
| minikin::Layout::purgeCaches(); |
| } |
| |
| }; // namespace CanvasJNI |
| |
| static const JNINativeMethod gMethods[] = { |
| {"nGetNativeFinalizer", "()J", (void*) CanvasJNI::getNativeFinalizer}, |
| {"nInitRaster", "(Landroid/graphics/Bitmap;)J", (void*) CanvasJNI::initRaster}, |
| {"nFreeCaches", "()V", (void*) CanvasJNI::freeCaches}, |
| {"nFreeTextLayoutCaches", "()V", (void*) CanvasJNI::freeTextLayoutCaches}, |
| |
| // ------------ @FastNative ---------------- |
| {"nSetBitmap", "(JLandroid/graphics/Bitmap;)V", (void*) CanvasJNI::setBitmap}, |
| {"nGetClipBounds","(JLandroid/graphics/Rect;)Z", (void*) CanvasJNI::getClipBounds}, |
| |
| // ------------ @CriticalNative ---------------- |
| {"nIsOpaque","(J)Z", (void*) CanvasJNI::isOpaque}, |
| {"nGetWidth","(J)I", (void*) CanvasJNI::getWidth}, |
| {"nGetHeight","(J)I", (void*) CanvasJNI::getHeight}, |
| {"nSetHighContrastText","(JZ)V", (void*) CanvasJNI::setHighContrastText}, |
| {"nSave","(JI)I", (void*) CanvasJNI::save}, |
| {"nSaveLayer","(JFFFFJI)I", (void*) CanvasJNI::saveLayer}, |
| {"nSaveLayerAlpha","(JFFFFII)I", (void*) CanvasJNI::saveLayerAlpha}, |
| {"nGetSaveCount","(J)I", (void*) CanvasJNI::getSaveCount}, |
| {"nRestore","(J)Z", (void*) CanvasJNI::restore}, |
| {"nRestoreToCount","(JI)V", (void*) CanvasJNI::restoreToCount}, |
| {"nGetMatrix", "(JJ)V", (void*)CanvasJNI::getMatrix}, |
| {"nSetMatrix","(JJ)V", (void*) CanvasJNI::setMatrix}, |
| {"nConcat","(JJ)V", (void*) CanvasJNI::concat}, |
| {"nRotate","(JF)V", (void*) CanvasJNI::rotate}, |
| {"nScale","(JFF)V", (void*) CanvasJNI::scale}, |
| {"nSkew","(JFF)V", (void*) CanvasJNI::skew}, |
| {"nTranslate","(JFF)V", (void*) CanvasJNI::translate}, |
| {"nQuickReject","(JJ)Z", (void*) CanvasJNI::quickRejectPath}, |
| {"nQuickReject","(JFFFF)Z", (void*)CanvasJNI::quickRejectRect}, |
| {"nClipRect","(JFFFFI)Z", (void*) CanvasJNI::clipRect}, |
| {"nClipPath","(JJI)Z", (void*) CanvasJNI::clipPath}, |
| {"nSetDrawFilter", "(JJ)V", (void*) CanvasJNI::setDrawFilter}, |
| }; |
| |
| // If called from Canvas these are regular JNI |
| // If called from DisplayListCanvas they are @FastNative |
| static const JNINativeMethod gDrawMethods[] = { |
| {"nDrawColor","(JII)V", (void*) CanvasJNI::drawColor}, |
| {"nDrawPaint","(JJ)V", (void*) CanvasJNI::drawPaint}, |
| {"nDrawPoint", "(JFFJ)V", (void*) CanvasJNI::drawPoint}, |
| {"nDrawPoints", "(J[FIIJ)V", (void*) CanvasJNI::drawPoints}, |
| {"nDrawLine", "(JFFFFJ)V", (void*) CanvasJNI::drawLine}, |
| {"nDrawLines", "(J[FIIJ)V", (void*) CanvasJNI::drawLines}, |
| {"nDrawRect","(JFFFFJ)V", (void*) CanvasJNI::drawRect}, |
| {"nDrawRegion", "(JJJ)V", (void*) CanvasJNI::drawRegion }, |
| {"nDrawRoundRect","(JFFFFFFJ)V", (void*) CanvasJNI::drawRoundRect}, |
| {"nDrawCircle","(JFFFJ)V", (void*) CanvasJNI::drawCircle}, |
| {"nDrawOval","(JFFFFJ)V", (void*) CanvasJNI::drawOval}, |
| {"nDrawArc","(JFFFFFFZJ)V", (void*) CanvasJNI::drawArc}, |
| {"nDrawPath","(JJJ)V", (void*) CanvasJNI::drawPath}, |
| {"nDrawVertices", "(JII[FI[FI[II[SIIJ)V", (void*)CanvasJNI::drawVertices}, |
| {"nDrawNinePatch", "(JJJFFFFJII)V", (void*)CanvasJNI::drawNinePatch}, |
| {"nDrawBitmapMatrix", "(JLandroid/graphics/Bitmap;JJ)V", (void*)CanvasJNI::drawBitmapMatrix}, |
| {"nDrawBitmapMesh", "(JLandroid/graphics/Bitmap;II[FI[IIJ)V", (void*)CanvasJNI::drawBitmapMesh}, |
| {"nDrawBitmap","(JLandroid/graphics/Bitmap;FFJIII)V", (void*) CanvasJNI::drawBitmap}, |
| {"nDrawBitmap","(JLandroid/graphics/Bitmap;FFFFFFFFJII)V", (void*) CanvasJNI::drawBitmapRect}, |
| {"nDrawBitmap", "(J[IIIFFIIZJ)V", (void*)CanvasJNI::drawBitmapArray}, |
| {"nDrawText","(J[CIIFFIJJ)V", (void*) CanvasJNI::drawTextChars}, |
| {"nDrawText","(JLjava/lang/String;IIFFIJJ)V", (void*) CanvasJNI::drawTextString}, |
| {"nDrawTextRun","(J[CIIIIFFZJJ)V", (void*) CanvasJNI::drawTextRunChars}, |
| {"nDrawTextRun","(JLjava/lang/String;IIIIFFZJJ)V", (void*) CanvasJNI::drawTextRunString}, |
| {"nDrawTextOnPath","(J[CIIJFFIJJ)V", (void*) CanvasJNI::drawTextOnPathChars}, |
| {"nDrawTextOnPath","(JLjava/lang/String;JFFIJJ)V", (void*) CanvasJNI::drawTextOnPathString}, |
| }; |
| |
| int register_android_graphics_Canvas(JNIEnv* env) { |
| int ret = 0; |
| ret |= RegisterMethodsOrDie(env, "android/graphics/Canvas", gMethods, NELEM(gMethods)); |
| ret |= RegisterMethodsOrDie(env, "android/graphics/BaseCanvas", gDrawMethods, NELEM(gDrawMethods)); |
| ret |= RegisterMethodsOrDie(env, "android/view/RecordingCanvas", gDrawMethods, NELEM(gDrawMethods)); |
| return ret; |
| |
| } |
| |
| }; // namespace android |
