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Diffstat (limited to 'core/jni/android_graphics_Canvas.cpp')
| -rw-r--r-- | core/jni/android_graphics_Canvas.cpp | 653 |
1 files changed, 0 insertions, 653 deletions
diff --git a/core/jni/android_graphics_Canvas.cpp b/core/jni/android_graphics_Canvas.cpp deleted file mode 100644 index fd96a90..0000000 --- a/core/jni/android_graphics_Canvas.cpp +++ /dev/null @@ -1,653 +0,0 @@ -/* - * 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 <android_runtime/AndroidRuntime.h> - -#include "Canvas.h" -#include "SkGraphics.h" -#include "SkPorterDuff.h" -#include "TypefaceImpl.h" - -#include <minikin/Layout.h> -#include "MinikinSkia.h" -#include "MinikinUtils.h" - -namespace android { - -namespace CanvasJNI { - -static Canvas* get_canvas(jlong canvasHandle) { - return reinterpret_cast<Canvas*>(canvasHandle); -} - -static void finalizer(JNIEnv* env, jobject clazz, jlong canvasHandle) { - delete get_canvas(canvasHandle); -} - -// Native wrapper constructor used by Canvas(Bitmap) -static jlong initRaster(JNIEnv* env, jobject, jlong bitmapHandle) { - SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); - 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, - jboolean copyState) { - SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); - get_canvas(canvasHandle)->setBitmap(bitmap, copyState); -} - -static jboolean isOpaque(JNIEnv*, jobject, jlong canvasHandle) { - return get_canvas(canvasHandle)->isOpaque() ? JNI_TRUE : JNI_FALSE; -} - -static jint getWidth(JNIEnv*, jobject, jlong canvasHandle) { - return static_cast<jint>(get_canvas(canvasHandle)->width()); -} - -static jint getHeight(JNIEnv*, jobject, jlong canvasHandle) { - return static_cast<jint>(get_canvas(canvasHandle)->height()); -} - -static jint getSaveCount(JNIEnv*, jobject, jlong canvasHandle) { - return static_cast<jint>(get_canvas(canvasHandle)->getSaveCount()); -} - -static jint save(JNIEnv*, jobject, jlong canvasHandle, jint flagsHandle) { - SkCanvas::SaveFlags flags = static_cast<SkCanvas::SaveFlags>(flagsHandle); - return static_cast<jint>(get_canvas(canvasHandle)->save(flags)); -} - -static jint saveLayer(JNIEnv* env, jobject, jlong canvasHandle, jfloat l, jfloat t, - jfloat r, jfloat b, jlong paintHandle, jint flagsHandle) { - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - SkCanvas::SaveFlags flags = static_cast<SkCanvas::SaveFlags>(flagsHandle); - return static_cast<jint>(get_canvas(canvasHandle)->saveLayer(l, t, r, b, paint, flags)); -} - -static jint saveLayerAlpha(JNIEnv* env, jobject, jlong canvasHandle, jfloat l, jfloat t, - jfloat r, jfloat b, jint alpha, jint flagsHandle) { - SkCanvas::SaveFlags flags = static_cast<SkCanvas::SaveFlags>(flagsHandle); - return static_cast<jint>(get_canvas(canvasHandle)->saveLayerAlpha(l, t, r, b, alpha, flags)); -} - -static void restore(JNIEnv* env, jobject, jlong canvasHandle) { - Canvas* canvas = get_canvas(canvasHandle); - if (canvas->getSaveCount() <= 1) { // cannot restore anymore - doThrowISE(env, "Underflow in restore"); - return; - } - canvas->restore(); -} - -static void restoreToCount(JNIEnv* env, jobject, jlong canvasHandle, jint restoreCount) { - Canvas* canvas = get_canvas(canvasHandle); - if (restoreCount < 1 || restoreCount > canvas->getSaveCount()) { - doThrowIAE(env, "Underflow in restoreToCount"); - return; - } - canvas->restoreToCount(restoreCount); -} - -static void getCTM(JNIEnv* env, jobject, jlong canvasHandle, jlong matrixHandle) { - SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); - get_canvas(canvasHandle)->getMatrix(matrix); -} - -static void setMatrix(JNIEnv* env, jobject, jlong canvasHandle, jlong matrixHandle) { - const SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); - get_canvas(canvasHandle)->setMatrix(matrix ? *matrix : SkMatrix::I()); -} - -static void concat(JNIEnv* env, jobject, jlong canvasHandle, jlong matrixHandle) { - const SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); - get_canvas(canvasHandle)->concat(*matrix); -} - -static void rotate(JNIEnv*, jobject, jlong canvasHandle, jfloat degrees) { - get_canvas(canvasHandle)->rotate(degrees); -} - -static void scale(JNIEnv*, jobject, jlong canvasHandle, jfloat sx, jfloat sy) { - get_canvas(canvasHandle)->scale(sx, sy); -} - -static void skew(JNIEnv*, jobject, jlong canvasHandle, jfloat sx, jfloat sy) { - get_canvas(canvasHandle)->skew(sx, sy); -} - -static void translate(JNIEnv*, jobject, 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(JNIEnv* env, jobject, 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(JNIEnv* env, jobject, jlong canvasHandle, jlong pathHandle) { - SkPath* path = reinterpret_cast<SkPath*>(pathHandle); - bool result = get_canvas(canvasHandle)->quickRejectPath(*path); - return result ? JNI_TRUE : JNI_FALSE; -} - -static jboolean clipRect(JNIEnv*, jobject, jlong canvasHandle, jfloat l, jfloat t, - jfloat r, jfloat b, jint opHandle) { - SkRegion::Op op = static_cast<SkRegion::Op>(opHandle); - bool emptyClip = get_canvas(canvasHandle)->clipRect(l, t, r, b, op); - return emptyClip ? JNI_FALSE : JNI_TRUE; -} - -static jboolean clipPath(JNIEnv* env, jobject, jlong canvasHandle, jlong pathHandle, - jint opHandle) { - SkPath* path = reinterpret_cast<SkPath*>(pathHandle); - SkRegion::Op op = static_cast<SkRegion::Op>(opHandle); - bool emptyClip = get_canvas(canvasHandle)->clipPath(path, op); - return emptyClip ? JNI_FALSE : JNI_TRUE; -} - -static jboolean clipRegion(JNIEnv* env, jobject, jlong canvasHandle, jlong deviceRgnHandle, - jint opHandle) { - SkRegion* deviceRgn = reinterpret_cast<SkRegion*>(deviceRgnHandle); - SkRegion::Op op = static_cast<SkRegion::Op>(opHandle); - bool emptyClip = get_canvas(canvasHandle)->clipRegion(deviceRgn, op); - return emptyClip ? JNI_FALSE : JNI_TRUE; -} - -static void drawColor(JNIEnv* env, jobject, jlong canvasHandle, jint color, jint modeHandle) { - SkPorterDuff::Mode mode = static_cast<SkPorterDuff::Mode>(modeHandle); - get_canvas(canvasHandle)->drawColor(color, SkPorterDuff::ToXfermodeMode(mode)); -} - -static void drawPaint(JNIEnv* env, jobject, jlong canvasHandle, jlong paintHandle) { - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - get_canvas(canvasHandle)->drawPaint(*paint); -} - -static void drawPoint(JNIEnv*, jobject, jlong canvasHandle, jfloat x, jfloat y, - jlong paintHandle) { - const SkPaint* paint = reinterpret_cast<SkPaint*>(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 SkPaint* paint = reinterpret_cast<SkPaint*>(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) { - SkPaint* paint = reinterpret_cast<SkPaint*>(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 SkPaint* paint = reinterpret_cast<SkPaint*>(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 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - get_canvas(canvasHandle)->drawRect(left, top, right, bottom, *paint); -} - -static void drawRoundRect(JNIEnv* env, jobject, jlong canvasHandle, jfloat left, jfloat top, - jfloat right, jfloat bottom, jfloat rx, jfloat ry, jlong paintHandle) { - const SkPaint* paint = reinterpret_cast<SkPaint*>(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 SkPaint* paint = reinterpret_cast<SkPaint*>(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 SkPaint* paint = reinterpret_cast<SkPaint*>(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 SkPaint* paint = reinterpret_cast<SkPaint*>(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 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - get_canvas(canvasHandle)->drawPath(*path, *paint); -} - -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) { - 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 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); - } - - SkCanvas::VertexMode mode = static_cast<SkCanvas::VertexMode>(modeHandle); - const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - get_canvas(canvasHandle)->drawVertices(mode, vertexCount, verts, texs, colors, - indices, indexCount, *paint); -} - -static void drawBitmap(JNIEnv* env, jobject jcanvas, jlong canvasHandle, jlong bitmapHandle, - jfloat left, jfloat top, jlong paintHandle, jint canvasDensity, - jint screenDensity, jint bitmapDensity) { - Canvas* canvas = get_canvas(canvasHandle); - const SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); - const 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(SkCanvas::kMatrixClip_SaveFlag); - 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 drawBitmapMatrix(JNIEnv* env, jobject, jlong canvasHandle, jlong bitmapHandle, - jlong matrixHandle, jlong paintHandle) { - const SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); - const SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle); - const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - 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 SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); - const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - - if (screenDensity != 0 && screenDensity != bitmapDensity) { - SkPaint filteredPaint; - if (paint) { - filteredPaint = *paint; - } - filteredPaint.setFilterLevel(SkPaint::kLow_FilterLevel); - 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; - if (!bitmap.allocPixels(info)) { - return; - } - - if (!GraphicsJNI::SetPixels(env, jcolors, offset, stride, 0, 0, width, height, bitmap)) { - return; - } - - const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - get_canvas(canvasHandle)->drawBitmap(bitmap, 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) { - const int ptCount = (meshWidth + 1) * (meshHeight + 1); - AutoJavaFloatArray vertA(env, jverts, vertIndex + (ptCount << 1)); - AutoJavaIntArray colorA(env, jcolors, colorIndex + ptCount); - - const SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); - const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - 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) { - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); - jchar* jchars = env->GetCharArrayElements(text, NULL); - const char* textArray = reinterpret_cast<const char*>(jchars) + index; - get_canvas(canvasHandle)->drawText(textArray, 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) { - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); - const int count = end - start; - const jchar* jchars = env->GetStringChars(text, NULL); - const char* textArray = reinterpret_cast<const char*>(jchars) + start; - get_canvas(canvasHandle)->drawText(textArray, 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) { - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); - - const int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR; - jchar* jchars = env->GetCharArrayElements(text, NULL); - const char* textArray = reinterpret_cast<const char*>(jchars) + contextIndex; - get_canvas(canvasHandle)->drawText(textArray, 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) { - 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* jchars = env->GetStringChars(text, NULL); - const char* textArray = reinterpret_cast<const char*>(jchars) + contextStart; - get_canvas(canvasHandle)->drawText(textArray, start - contextStart, count, contextCount, - x, y, bidiFlags, *paint, typeface); - env->ReleaseStringChars(text, jchars); -} - -static void drawPosTextChars(JNIEnv* env, jobject, jlong canvasHandle, jcharArray text, - jint index, jint count, jfloatArray pos, jlong paintHandle) { - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - jchar* jchars = text ? env->GetCharArrayElements(text, NULL) : NULL; - float* posArray = pos ? env->GetFloatArrayElements(pos, NULL) : NULL; - int posCount = pos ? env->GetArrayLength(pos) >> 1: 0; - - const char* textArray = reinterpret_cast<const char*>(jchars) + index; - get_canvas(canvasHandle)->drawPosText(textArray, posArray, count << 1, posCount, *paint); - - if (text) { - env->ReleaseCharArrayElements(text, jchars, 0); - } - if (pos) { - env->ReleaseFloatArrayElements(pos, posArray, 0); - } -} - - -static void drawPosTextString(JNIEnv* env, jobject, jlong canvasHandle, jstring text, - jfloatArray pos, jlong paintHandle) { - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - const jchar* jchars = 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; - - const char* textArray = reinterpret_cast<const char*>(jchars); - get_canvas(canvasHandle)->drawPosText(textArray , posArray, byteLength << 1, posCount, *paint); - - if (text) { - env->ReleaseStringChars(text, jchars); - } - if (pos) { - env->ReleaseFloatArrayElements(pos, posArray, 0); - } -} - -class DrawTextOnPathFunctor { -public: - DrawTextOnPathFunctor(const Layout& layout, Canvas* canvas, float hOffset, - float vOffset, const SkPaint& paint, const 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->drawTextOnPath((const char*) glyphs, 1, path, x, y, paint); - } - } -private: - const Layout& layout; - Canvas* canvas; - float hOffset; - float vOffset; - const SkPaint& paint; - const SkPath& path; -}; - -static void drawTextOnPath(Canvas* canvas, const char* text, int count, int bidiFlags, - const SkPath& path, float hOffset, float vOffset, - const SkPaint& paint, TypefaceImpl* typeface) { - SkPaint paintCopy(paint); - Layout layout; - std::string css = MinikinUtils::setLayoutProperties(&layout, &paintCopy, bidiFlags, typeface); - layout.doLayout((uint16_t*)text, 0, count, count, css); - hOffset += MinikinUtils::hOffsetForTextAlign(&paintCopy, 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. - paintCopy.setTextAlign(SkPaint::kLeft_Align); - - DrawTextOnPathFunctor f(layout, canvas, hOffset, vOffset, paintCopy, path); - MinikinUtils::forFontRun(layout, &paintCopy, f); -} - -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); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); - - jchar* jchars = env->GetCharArrayElements(text, NULL); - const char* textArray = reinterpret_cast<const char*>(jchars); - - drawTextOnPath(get_canvas(canvasHandle), textArray + 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); - SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); - TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); - - const jchar* jchars = env->GetStringChars(text, NULL); - const char* textArray = reinterpret_cast<const char*>(jchars); - int count = env->GetStringLength(text); - - drawTextOnPath(get_canvas(canvasHandle), textArray, count, bidiFlags, *path, - hOffset, vOffset, *paint, typeface); - - env->ReleaseStringChars(text, jchars); -} - -static void setDrawFilter(JNIEnv* env, jobject, 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) { - Layout::purgeCaches(); -} - -}; // namespace CanvasJNI - -static JNINativeMethod gMethods[] = { - {"finalizer", "(J)V", (void*) CanvasJNI::finalizer}, - {"initRaster", "(J)J", (void*) CanvasJNI::initRaster}, - {"native_setBitmap", "(JJZ)V", (void*) CanvasJNI::setBitmap}, - {"native_isOpaque","(J)Z", (void*) CanvasJNI::isOpaque}, - {"native_getWidth","(J)I", (void*) CanvasJNI::getWidth}, - {"native_getHeight","(J)I", (void*) CanvasJNI::getHeight}, - {"native_save","(JI)I", (void*) CanvasJNI::save}, - {"native_saveLayer","(JFFFFJI)I", (void*) CanvasJNI::saveLayer}, - {"native_saveLayerAlpha","(JFFFFII)I", (void*) CanvasJNI::saveLayerAlpha}, - {"native_getSaveCount","(J)I", (void*) CanvasJNI::getSaveCount}, - {"native_restore","(J)V", (void*) CanvasJNI::restore}, - {"native_restoreToCount","(JI)V", (void*) CanvasJNI::restoreToCount}, - {"native_getCTM", "(JJ)V", (void*)CanvasJNI::getCTM}, - {"native_setMatrix","(JJ)V", (void*) CanvasJNI::setMatrix}, - {"native_concat","(JJ)V", (void*) CanvasJNI::concat}, - {"native_rotate","(JF)V", (void*) CanvasJNI::rotate}, - {"native_scale","(JFF)V", (void*) CanvasJNI::scale}, - {"native_skew","(JFF)V", (void*) CanvasJNI::skew}, - {"native_translate","(JFF)V", (void*) CanvasJNI::translate}, - {"native_getClipBounds","(JLandroid/graphics/Rect;)Z", (void*) CanvasJNI::getClipBounds}, - {"native_quickReject","(JJ)Z", (void*) CanvasJNI::quickRejectPath}, - {"native_quickReject","(JFFFF)Z", (void*)CanvasJNI::quickRejectRect}, - {"native_clipRect","(JFFFFI)Z", (void*) CanvasJNI::clipRect}, - {"native_clipPath","(JJI)Z", (void*) CanvasJNI::clipPath}, - {"native_clipRegion","(JJI)Z", (void*) CanvasJNI::clipRegion}, - {"native_drawColor","(JII)V", (void*) CanvasJNI::drawColor}, - {"native_drawPaint","(JJ)V", (void*) CanvasJNI::drawPaint}, - {"native_drawPoint", "(JFFJ)V", (void*) CanvasJNI::drawPoint}, - {"native_drawPoints", "(J[FIIJ)V", (void*) CanvasJNI::drawPoints}, - {"native_drawLine", "(JFFFFJ)V", (void*) CanvasJNI::drawLine}, - {"native_drawLines", "(J[FIIJ)V", (void*) CanvasJNI::drawLines}, - {"native_drawRect","(JFFFFJ)V", (void*) CanvasJNI::drawRect}, - {"native_drawRoundRect","(JFFFFFFJ)V", (void*) CanvasJNI::drawRoundRect}, - {"native_drawCircle","(JFFFJ)V", (void*) CanvasJNI::drawCircle}, - {"native_drawOval","(JFFFFJ)V", (void*) CanvasJNI::drawOval}, - {"native_drawArc","(JFFFFFFZJ)V", (void*) CanvasJNI::drawArc}, - {"native_drawPath","(JJJ)V", (void*) CanvasJNI::drawPath}, - {"nativeDrawVertices", "(JII[FI[FI[II[SIIJ)V", (void*)CanvasJNI::drawVertices}, - {"native_drawBitmap","(JJFFJIII)V", (void*) CanvasJNI::drawBitmap}, - {"nativeDrawBitmapMatrix", "(JJJJ)V", (void*)CanvasJNI::drawBitmapMatrix}, - {"native_drawBitmap","(JJFFFFFFFFJII)V", (void*) CanvasJNI::drawBitmapRect}, - {"native_drawBitmap", "(J[IIIFFIIZJ)V", (void*)CanvasJNI::drawBitmapArray}, - {"nativeDrawBitmapMesh", "(JJII[FI[IIJ)V", (void*)CanvasJNI::drawBitmapMesh}, - {"native_drawText","(J[CIIFFIJJ)V", (void*) CanvasJNI::drawTextChars}, - {"native_drawText","(JLjava/lang/String;IIFFIJJ)V", (void*) CanvasJNI::drawTextString}, - {"native_drawTextRun","(J[CIIIIFFZJJ)V", (void*) CanvasJNI::drawTextRunChars}, - {"native_drawTextRun","(JLjava/lang/String;IIIIFFZJJ)V", (void*) CanvasJNI::drawTextRunString}, - {"native_drawTextOnPath","(J[CIIJFFIJJ)V", (void*) CanvasJNI::drawTextOnPathChars}, - {"native_drawTextOnPath","(JLjava/lang/String;JFFIJJ)V", (void*) CanvasJNI::drawTextOnPathString}, - {"nativeSetDrawFilter", "(JJ)V", (void*) CanvasJNI::setDrawFilter}, - {"freeCaches", "()V", (void*) CanvasJNI::freeCaches}, - {"freeTextLayoutCaches", "()V", (void*) CanvasJNI::freeTextLayoutCaches} -}; - -int register_android_graphics_Canvas(JNIEnv* env) { - return AndroidRuntime::registerNativeMethods(env, "android/graphics/Canvas", gMethods, NELEM(gMethods)); -} - -}; // namespace android |