diff options
Diffstat (limited to 'libs/hwui/jni/android_graphics_Canvas.cpp')
| -rw-r--r-- | libs/hwui/jni/android_graphics_Canvas.cpp | 739 |
1 files changed, 739 insertions, 0 deletions
diff --git a/libs/hwui/jni/android_graphics_Canvas.cpp b/libs/hwui/jni/android_graphics_Canvas.cpp new file mode 100644 index 000000000000..4aff3e544efa --- /dev/null +++ b/libs/hwui/jni/android_graphics_Canvas.cpp @@ -0,0 +1,739 @@ +/* + * 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 "GraphicsJNI.h" + +#ifdef __ANDROID_ +#include <android/api-level.h> +#else +#define __ANDROID_API_P__ 28 +#endif +#include <androidfw/ResourceTypes.h> +#include <hwui/Canvas.h> +#include <hwui/Paint.h> +#include <hwui/PaintFilter.h> +#include <hwui/Typeface.h> +#include <minikin/Layout.h> +#include <nativehelper/ScopedPrimitiveArray.h> +#include <nativehelper/ScopedStringChars.h> + +#include "Bitmap.h" +#include "SkGraphics.h" +#include "SkRegion.h" +#include "SkVertices.h" + +namespace minikin { +class MeasuredText; +} // namespace minikin + +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, jlong bitmapHandle) { + SkBitmap bitmap; + if (bitmapHandle != 0) { + bitmap::toBitmap(bitmapHandle).getSkBitmap(&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, jlong bitmapHandle) { + SkBitmap bitmap; + if (bitmapHandle != 0) { + bitmap::toBitmap(bitmapHandle).getSkBitmap(&bitmap); + } + get_canvas(canvasHandle)->setBitmap(bitmap); +} + +static jboolean isOpaque(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle) { + return get_canvas(canvasHandle)->isOpaque() ? JNI_TRUE : JNI_FALSE; +} + +static jint getWidth(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle) { + return static_cast<jint>(get_canvas(canvasHandle)->width()); +} + +static jint getHeight(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle) { + return static_cast<jint>(get_canvas(canvasHandle)->height()); +} + +static jint save(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle, jint flagsHandle) { + SaveFlags::Flags flags = static_cast<SaveFlags::Flags>(flagsHandle); + return static_cast<jint>(get_canvas(canvasHandle)->save(flags)); +} + +static jint saveLayer(CRITICAL_JNI_PARAMS_COMMA 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(CRITICAL_JNI_PARAMS_COMMA 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 jint saveUnclippedLayer(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle, jint l, jint t, jint r, jint b) { + return reinterpret_cast<jint>(get_canvas(canvasHandle)->saveUnclippedLayer(l, t, r, b)); +} + +static void restoreUnclippedLayer(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle, jint saveCount, jlong paintHandle) { + Paint* paint = reinterpret_cast<Paint*>(paintHandle); + get_canvas(canvasHandle)->restoreUnclippedLayer(saveCount, *paint); +} + +static bool restore(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle) { + Canvas* canvas = get_canvas(canvasHandle); + if (canvas->getSaveCount() <= 1) { + return false; // cannot restore anymore + } + canvas->restore(); + return true; // success +} + +static void restoreToCount(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle, jint saveCount) { + Canvas* canvas = get_canvas(canvasHandle); + canvas->restoreToCount(saveCount); +} + +static jint getSaveCount(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle) { + return static_cast<jint>(get_canvas(canvasHandle)->getSaveCount()); +} + +static void getMatrix(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle, jlong matrixHandle) { + SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); + get_canvas(canvasHandle)->getMatrix(matrix); +} + +static void setMatrix(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle, jlong matrixHandle) { + const SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); + get_canvas(canvasHandle)->setMatrix(matrix ? *matrix : SkMatrix::I()); +} + +static void concat(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle, jlong matrixHandle) { + const SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); + get_canvas(canvasHandle)->concat(*matrix); +} + +static void rotate(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle, jfloat degrees) { + get_canvas(canvasHandle)->rotate(degrees); +} + +static void scale(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle, jfloat sx, jfloat sy) { + get_canvas(canvasHandle)->scale(sx, sy); +} + +static void skew(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle, jfloat sx, jfloat sy) { + get_canvas(canvasHandle)->skew(sx, sy); +} + +static void translate(CRITICAL_JNI_PARAMS_COMMA 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(CRITICAL_JNI_PARAMS_COMMA 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(CRITICAL_JNI_PARAMS_COMMA 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(CRITICAL_JNI_PARAMS_COMMA 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(CRITICAL_JNI_PARAMS_COMMA 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 drawColorLong(JNIEnv* env, jobject, jlong canvasHandle, jlong colorSpaceHandle, + jlong colorLong, jint modeHandle) { + SkColor4f color = GraphicsJNI::convertColorLong(colorLong); + sk_sp<SkColorSpace> cs = GraphicsJNI::getNativeColorSpace(colorSpaceHandle); + SkPaint p; + p.setColor4f(color, cs.get()); + + SkBlendMode mode = static_cast<SkBlendMode>(modeHandle); + p.setBlendMode(mode); + get_canvas(canvasHandle)->drawPaint(p); +} + +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 drawDoubleRoundRectXY(JNIEnv* env, jobject, jlong canvasHandle, jfloat outerLeft, + jfloat outerTop, jfloat outerRight, jfloat outerBottom, jfloat outerRx, + jfloat outerRy, jfloat innerLeft, jfloat innerTop, jfloat innerRight, + jfloat innerBottom, jfloat innerRx, jfloat innerRy, jlong paintHandle) { + const Paint* paint = reinterpret_cast<Paint*>(paintHandle); + get_canvas(canvasHandle)->drawDoubleRoundRectXY( + outerLeft, outerTop, outerRight, outerBottom, outerRx, outerRy, + innerLeft, innerTop, innerRight, innerBottom, innerRx, innerRy, *paint); +} + +static void drawDoubleRoundRectRadii(JNIEnv* env, jobject, jlong canvasHandle, jfloat outerLeft, + jfloat outerTop, jfloat outerRight, jfloat outerBottom, jfloatArray jouterRadii, + jfloat innerLeft, jfloat innerTop, jfloat innerRight, + jfloat innerBottom, jfloatArray jinnerRadii, jlong paintHandle) { + const Paint* paint = reinterpret_cast<Paint*>(paintHandle); + + float outerRadii[8]; + float innerRadii[8]; + env->GetFloatArrayRegion(jouterRadii, 0, 8, outerRadii); + env->GetFloatArrayRegion(jinnerRadii, 0, 8, innerRadii); + get_canvas(canvasHandle)->drawDoubleRoundRectRadii( + outerLeft, outerTop, outerRight, outerBottom, outerRadii, + innerLeft, innerTop, innerRight, innerBottom, innerRadii, *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) { + + const int vertexCount = floatCount >> 1; // 2 floats per SkPoint + + AutoJavaFloatArray vertA(env, jverts, vertIndex + floatCount); + AutoJavaFloatArray texA(env, jtexs, texIndex + floatCount); + AutoJavaIntArray colorA(env, jcolors, colorIndex + vertexCount); + 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); + } + + 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(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, jlong bitmapHandle, + jfloat left, jfloat top, jlong paintHandle, jint canvasDensity, + jint screenDensity, jint bitmapDensity) { + Canvas* canvas = get_canvas(canvasHandle); + Bitmap& bitmap = android::bitmap::toBitmap(bitmapHandle); + 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, jlong bitmapHandle, + jlong matrixHandle, jlong paintHandle) { + const SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); + const Paint* paint = reinterpret_cast<Paint*>(paintHandle); + Bitmap& bitmap = android::bitmap::toBitmap(bitmapHandle); + get_canvas(canvasHandle)->drawBitmap(bitmap, *matrix, paint); +} + +static void drawBitmapRect(JNIEnv* env, jobject, jlong canvasHandle, jlong bitmapHandle, + 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(bitmapHandle); + 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::Make(width, height, + hasAlpha ? kN32_SkColorType : kRGB_565_SkColorType, + kPremul_SkAlphaType); + 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, jlong bitmapHandle, + jint meshWidth, jint meshHeight, jfloatArray jverts, + jint vertIndex, jintArray jcolors, jint colorIndex, jlong paintHandle) { + if (Canvas::GetApiLevel() < __ANDROID_API_P__) { + // Before P we forgot to respect these. Now that we do respect them, explicitly + // zero them for backward compatibility. + vertIndex = 0; + colorIndex = 0; + } + + 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(bitmapHandle); + get_canvas(canvasHandle)->drawBitmapMesh(bitmap, meshWidth, meshHeight, + vertA.ptr() + vertIndex*2, + colorA.ptr() + colorIndex, paint); +} + +static void drawTextChars(JNIEnv* env, jobject, jlong canvasHandle, jcharArray charArray, + jint index, jint count, jfloat x, jfloat y, jint bidiFlags, + jlong paintHandle) { + Paint* paint = reinterpret_cast<Paint*>(paintHandle); + const Typeface* typeface = paint->getAndroidTypeface(); + ScopedCharArrayRO text(env, charArray); + // drawTextString and drawTextChars doesn't use context info + get_canvas(canvasHandle)->drawText( + text.get() + index, count, // text buffer + 0, count, // draw range + 0, count, // context range + x, y, // draw position + static_cast<minikin::Bidi>(bidiFlags), *paint, typeface, nullptr /* measured text */); +} + +static void drawTextString(JNIEnv* env, jobject, jlong canvasHandle, jstring strObj, + jint start, jint end, jfloat x, jfloat y, jint bidiFlags, + jlong paintHandle) { + ScopedStringChars text(env, strObj); + Paint* paint = reinterpret_cast<Paint*>(paintHandle); + const Typeface* typeface = paint->getAndroidTypeface(); + const int count = end - start; + // drawTextString and drawTextChars doesn't use context info + get_canvas(canvasHandle)->drawText( + text.get() + start, count, // text buffer + 0, count, // draw range + 0, count, // context range + x, y, // draw position + static_cast<minikin::Bidi>(bidiFlags), *paint, typeface, nullptr /* measured text */); +} + +static void drawTextRunChars(JNIEnv* env, jobject, jlong canvasHandle, jcharArray charArray, + jint index, jint count, jint contextIndex, jint contextCount, + jfloat x, jfloat y, jboolean isRtl, jlong paintHandle, + jlong mtHandle) { + minikin::MeasuredText* mt = reinterpret_cast<minikin::MeasuredText*>(mtHandle); + const minikin::Bidi bidiFlags = isRtl ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR; + + ScopedCharArrayRO text(env, charArray); + Paint* paint = reinterpret_cast<Paint*>(paintHandle); + const Typeface* typeface = paint->getAndroidTypeface(); + get_canvas(canvasHandle)->drawText( + text.get(), text.size(), // text buffer + index, count, // draw range + contextIndex, contextCount, // context range, + x, y, // draw position + bidiFlags, *paint, typeface, mt); +} + +static void drawTextRunString(JNIEnv* env, jobject obj, jlong canvasHandle, jstring strObj, + jint start, jint end, jint contextStart, jint contextEnd, + jfloat x, jfloat y, jboolean isRtl, jlong paintHandle) { + const minikin::Bidi bidiFlags = isRtl ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR; + + ScopedStringChars text(env, strObj); + Paint* paint = reinterpret_cast<Paint*>(paintHandle); + const Typeface* typeface = paint->getAndroidTypeface(); + get_canvas(canvasHandle)->drawText( + text.get(), text.size(), // text buffer + start, end - start, // draw range + contextStart, contextEnd - contextStart, // context range + x, y, // draw position + bidiFlags, *paint, typeface, nullptr /* measured text */); +} + +static void drawTextOnPathChars(JNIEnv* env, jobject, jlong canvasHandle, jcharArray text, + jint index, jint count, jlong pathHandle, jfloat hOffset, + jfloat vOffset, jint bidiFlags, jlong paintHandle) { + SkPath* path = reinterpret_cast<SkPath*>(pathHandle); + Paint* paint = reinterpret_cast<Paint*>(paintHandle); + const Typeface* typeface = paint->getAndroidTypeface(); + + jchar* jchars = env->GetCharArrayElements(text, NULL); + + get_canvas(canvasHandle)->drawTextOnPath(jchars + index, count, + static_cast<minikin::Bidi>(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) { + SkPath* path = reinterpret_cast<SkPath*>(pathHandle); + Paint* paint = reinterpret_cast<Paint*>(paintHandle); + const Typeface* typeface = paint->getAndroidTypeface(); + + const jchar* jchars = env->GetStringChars(text, NULL); + int count = env->GetStringLength(text); + + get_canvas(canvasHandle)->drawTextOnPath(jchars, count, static_cast<minikin::Bidi>(bidiFlags), + *path, hOffset, vOffset, *paint, typeface); + + env->ReleaseStringChars(text, jchars); +} + +static void setPaintFilter(CRITICAL_JNI_PARAMS_COMMA jlong canvasHandle, jlong filterHandle) { + PaintFilter* paintFilter = reinterpret_cast<PaintFilter*>(filterHandle); + get_canvas(canvasHandle)->setPaintFilter(sk_ref_sp(paintFilter)); +} + +static void freeCaches(JNIEnv* env, jobject) { + SkGraphics::PurgeFontCache(); +} + +static void freeTextLayoutCaches(JNIEnv* env, jobject) { + minikin::Layout::purgeCaches(); +} + +static void setCompatibilityVersion(JNIEnv* env, jobject, jint apiLevel) { + Canvas::setCompatibilityVersion(apiLevel); +} + + +}; // namespace CanvasJNI + +static const JNINativeMethod gMethods[] = { + {"nGetNativeFinalizer", "()J", (void*) CanvasJNI::getNativeFinalizer}, + {"nFreeCaches", "()V", (void*) CanvasJNI::freeCaches}, + {"nFreeTextLayoutCaches", "()V", (void*) CanvasJNI::freeTextLayoutCaches}, + {"nSetCompatibilityVersion", "(I)V", (void*) CanvasJNI::setCompatibilityVersion}, + + // ------------ @FastNative ---------------- + {"nInitRaster", "(J)J", (void*) CanvasJNI::initRaster}, + {"nSetBitmap", "(JJ)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}, + {"nSave","(JI)I", (void*) CanvasJNI::save}, + {"nSaveLayer","(JFFFFJI)I", (void*) CanvasJNI::saveLayer}, + {"nSaveLayerAlpha","(JFFFFII)I", (void*) CanvasJNI::saveLayerAlpha}, + {"nSaveUnclippedLayer","(JIIII)I", (void*) CanvasJNI::saveUnclippedLayer}, + {"nRestoreUnclippedLayer","(JIJ)V", (void*) CanvasJNI::restoreUnclippedLayer}, + {"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::setPaintFilter}, +}; + +// 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}, + {"nDrawColor","(JJJI)V", (void*) CanvasJNI::drawColorLong}, + {"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}, + {"nDrawDoubleRoundRect", "(JFFFFFFFFFFFFJ)V", (void*) CanvasJNI::drawDoubleRoundRectXY}, + {"nDrawDoubleRoundRect", "(JFFFF[FFFFF[FJ)V", (void*) CanvasJNI::drawDoubleRoundRectRadii}, + {"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", "(JJJJ)V", (void*)CanvasJNI::drawBitmapMatrix}, + {"nDrawBitmapMesh", "(JJII[FI[IIJ)V", (void*)CanvasJNI::drawBitmapMesh}, + {"nDrawBitmap","(JJFFJIII)V", (void*) CanvasJNI::drawBitmap}, + {"nDrawBitmap","(JJFFFFFFFFJII)V", (void*) CanvasJNI::drawBitmapRect}, + {"nDrawBitmap", "(J[IIIFFIIZJ)V", (void*)CanvasJNI::drawBitmapArray}, + {"nDrawText","(J[CIIFFIJ)V", (void*) CanvasJNI::drawTextChars}, + {"nDrawText","(JLjava/lang/String;IIFFIJ)V", (void*) CanvasJNI::drawTextString}, + {"nDrawTextRun","(J[CIIIIFFZJJ)V", (void*) CanvasJNI::drawTextRunChars}, + {"nDrawTextRun","(JLjava/lang/String;IIIIFFZJ)V", (void*) CanvasJNI::drawTextRunString}, + {"nDrawTextOnPath","(J[CIIJFFIJ)V", (void*) CanvasJNI::drawTextOnPathChars}, + {"nDrawTextOnPath","(JLjava/lang/String;JFFIJ)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/graphics/BaseRecordingCanvas", gDrawMethods, NELEM(gDrawMethods)); + return ret; + +} + +}; // namespace android |