| /* |
| * 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 "SkDevice.h" |
| #include "SkGLCanvas.h" |
| #include "SkShader.h" |
| #include "SkTemplates.h" |
| |
| #define TIME_DRAWx |
| |
| static uint32_t get_thread_msec() { |
| #if defined(HAVE_POSIX_CLOCKS) |
| struct timespec tm; |
| |
| clock_gettime(CLOCK_THREAD_CPUTIME_ID, &tm); |
| |
| return tm.tv_sec * 1000LL + tm.tv_nsec / 1000000; |
| #else |
| struct timeval tv; |
| |
| gettimeofday(&tv, NULL); |
| return tv.tv_sec * 1000LL + tv.tv_usec / 1000; |
| #endif |
| } |
| |
| namespace android { |
| |
| class SkCanvasGlue { |
| public: |
| |
| static void finalizer(JNIEnv* env, jobject clazz, SkCanvas* canvas) { |
| canvas->unref(); |
| } |
| |
| static SkCanvas* initRaster(JNIEnv* env, jobject, SkBitmap* bitmap) { |
| return bitmap ? new SkCanvas(*bitmap) : new SkCanvas; |
| } |
| |
| static SkCanvas* initGL(JNIEnv* env, jobject) { |
| return new SkGLCanvas; |
| } |
| |
| static void freeGlCaches(JNIEnv* env, jobject) { |
| SkGLCanvas::DeleteAllTextures(); |
| } |
| |
| static jboolean isOpaque(JNIEnv* env, jobject jcanvas) { |
| NPE_CHECK_RETURN_ZERO(env, jcanvas); |
| SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, jcanvas); |
| |
| /* |
| Currently we cannot support transparency in GL-based canvas' at |
| the view level. Therefore we cannot base our answer on the device's |
| bitmap, but need to hard-code the answer. If we relax this |
| limitation in views, we can simplify the following code as well. |
| |
| Use the getViewport() call to find out if we're gl-based... |
| */ |
| if (canvas->getViewport(NULL)) { |
| return true; |
| } |
| |
| // normal technique, rely on the device's bitmap for the answer |
| return canvas->getDevice()->accessBitmap(false).isOpaque(); |
| } |
| |
| static int getWidth(JNIEnv* env, jobject jcanvas) { |
| NPE_CHECK_RETURN_ZERO(env, jcanvas); |
| SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, jcanvas); |
| return canvas->getDevice()->accessBitmap(false).width(); |
| } |
| |
| static int getHeight(JNIEnv* env, jobject jcanvas) { |
| NPE_CHECK_RETURN_ZERO(env, jcanvas); |
| SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, jcanvas); |
| return canvas->getDevice()->accessBitmap(false).height(); |
| } |
| |
| static void setViewport(JNIEnv* env, jobject, SkCanvas* canvas, |
| int width, int height) { |
| canvas->setViewport(width, height); |
| } |
| |
| static void setBitmap(JNIEnv* env, jobject, SkCanvas* canvas, |
| SkBitmap* bitmap) { |
| canvas->setBitmapDevice(*bitmap); |
| } |
| |
| static int saveAll(JNIEnv* env, jobject jcanvas) { |
| NPE_CHECK_RETURN_ZERO(env, jcanvas); |
| return GraphicsJNI::getNativeCanvas(env, jcanvas)->save(); |
| } |
| |
| static int save(JNIEnv* env, jobject jcanvas, SkCanvas::SaveFlags flags) { |
| NPE_CHECK_RETURN_ZERO(env, jcanvas); |
| return GraphicsJNI::getNativeCanvas(env, jcanvas)->save(flags); |
| } |
| |
| static int saveLayer(JNIEnv* env, jobject, SkCanvas* canvas, jobject bounds, |
| SkPaint* paint, int flags) { |
| SkRect* bounds_ = NULL; |
| SkRect storage; |
| if (bounds != NULL) { |
| GraphicsJNI::jrectf_to_rect(env, bounds, &storage); |
| bounds_ = &storage; |
| } |
| return canvas->saveLayer(bounds_, paint, (SkCanvas::SaveFlags)flags); |
| } |
| |
| static int saveLayer4F(JNIEnv* env, jobject, SkCanvas* canvas, |
| jfloat l, jfloat t, jfloat r, jfloat b, |
| SkPaint* paint, int flags) { |
| SkRect bounds; |
| bounds.set(SkFloatToScalar(l), SkFloatToScalar(t), SkFloatToScalar(r), |
| SkFloatToScalar(b)); |
| return canvas->saveLayer(&bounds, paint, (SkCanvas::SaveFlags)flags); |
| } |
| |
| static int saveLayerAlpha(JNIEnv* env, jobject, SkCanvas* canvas, |
| jobject bounds, int alpha, int flags) { |
| SkRect* bounds_ = NULL; |
| SkRect storage; |
| if (bounds != NULL) { |
| GraphicsJNI::jrectf_to_rect(env, bounds, &storage); |
| bounds_ = &storage; |
| } |
| return canvas->saveLayerAlpha(bounds_, alpha, |
| (SkCanvas::SaveFlags)flags); |
| } |
| |
| static int saveLayerAlpha4F(JNIEnv* env, jobject, SkCanvas* canvas, |
| jfloat l, jfloat t, jfloat r, jfloat b, |
| int alpha, int flags) { |
| SkRect bounds; |
| bounds.set(SkFloatToScalar(l), SkFloatToScalar(t), SkFloatToScalar(r), |
| SkFloatToScalar(b)); |
| return canvas->saveLayerAlpha(&bounds, alpha, |
| (SkCanvas::SaveFlags)flags); |
| } |
| |
| static void restore(JNIEnv* env, jobject jcanvas) { |
| NPE_CHECK_RETURN_VOID(env, jcanvas); |
| SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, jcanvas); |
| if (canvas->getSaveCount() <= 1) { // cannot restore anymore |
| doThrowISE(env, "Underflow in restore"); |
| return; |
| } |
| canvas->restore(); |
| } |
| |
| static int getSaveCount(JNIEnv* env, jobject jcanvas) { |
| NPE_CHECK_RETURN_ZERO(env, jcanvas); |
| return GraphicsJNI::getNativeCanvas(env, jcanvas)->getSaveCount(); |
| } |
| |
| static void restoreToCount(JNIEnv* env, jobject jcanvas, int restoreCount) { |
| NPE_CHECK_RETURN_VOID(env, jcanvas); |
| SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, jcanvas); |
| if (restoreCount < 1) { |
| doThrowIAE(env, "Underflow in restoreToCount"); |
| return; |
| } |
| canvas->restoreToCount(restoreCount); |
| } |
| |
| static void translate(JNIEnv* env, jobject jcanvas, jfloat dx, jfloat dy) { |
| NPE_CHECK_RETURN_VOID(env, jcanvas); |
| SkScalar dx_ = SkFloatToScalar(dx); |
| SkScalar dy_ = SkFloatToScalar(dy); |
| (void)GraphicsJNI::getNativeCanvas(env, jcanvas)->translate(dx_, dy_); |
| } |
| |
| static void scale__FF(JNIEnv* env, jobject jcanvas, jfloat sx, jfloat sy) { |
| NPE_CHECK_RETURN_VOID(env, jcanvas); |
| SkScalar sx_ = SkFloatToScalar(sx); |
| SkScalar sy_ = SkFloatToScalar(sy); |
| (void)GraphicsJNI::getNativeCanvas(env, jcanvas)->scale(sx_, sy_); |
| } |
| |
| static void rotate__F(JNIEnv* env, jobject jcanvas, jfloat degrees) { |
| NPE_CHECK_RETURN_VOID(env, jcanvas); |
| SkScalar degrees_ = SkFloatToScalar(degrees); |
| (void)GraphicsJNI::getNativeCanvas(env, jcanvas)->rotate(degrees_); |
| } |
| |
| static void skew__FF(JNIEnv* env, jobject jcanvas, jfloat sx, jfloat sy) { |
| NPE_CHECK_RETURN_VOID(env, jcanvas); |
| SkScalar sx_ = SkFloatToScalar(sx); |
| SkScalar sy_ = SkFloatToScalar(sy); |
| (void)GraphicsJNI::getNativeCanvas(env, jcanvas)->skew(sx_, sy_); |
| } |
| |
| static void concat(JNIEnv* env, jobject, SkCanvas* canvas, |
| const SkMatrix* matrix) { |
| canvas->concat(*matrix); |
| } |
| |
| static void setMatrix(JNIEnv* env, jobject, SkCanvas* canvas, |
| const SkMatrix* matrix) { |
| if (NULL == matrix) { |
| canvas->resetMatrix(); |
| } else { |
| canvas->setMatrix(*matrix); |
| } |
| } |
| |
| static jboolean clipRect_FFFF(JNIEnv* env, jobject jcanvas, jfloat left, |
| jfloat top, jfloat right, jfloat bottom) { |
| NPE_CHECK_RETURN_ZERO(env, jcanvas); |
| SkRect r; |
| r.set(SkFloatToScalar(left), SkFloatToScalar(top), |
| SkFloatToScalar(right), SkFloatToScalar(bottom)); |
| SkCanvas* c = GraphicsJNI::getNativeCanvas(env, jcanvas); |
| return c->clipRect(r); |
| } |
| |
| static jboolean clipRect_IIII(JNIEnv* env, jobject jcanvas, jint left, |
| jint top, jint right, jint bottom) { |
| NPE_CHECK_RETURN_ZERO(env, jcanvas); |
| SkRect r; |
| r.set(SkIntToScalar(left), SkIntToScalar(top), |
| SkIntToScalar(right), SkIntToScalar(bottom)); |
| return GraphicsJNI::getNativeCanvas(env, jcanvas)->clipRect(r); |
| } |
| |
| static jboolean clipRect_RectF(JNIEnv* env, jobject jcanvas, jobject rectf) { |
| NPE_CHECK_RETURN_ZERO(env, jcanvas); |
| NPE_CHECK_RETURN_ZERO(env, rectf); |
| SkCanvas* c = GraphicsJNI::getNativeCanvas(env, jcanvas); |
| SkRect tmp; |
| return c->clipRect(*GraphicsJNI::jrectf_to_rect(env, rectf, &tmp)); |
| } |
| |
| static jboolean clipRect_Rect(JNIEnv* env, jobject jcanvas, jobject rect) { |
| NPE_CHECK_RETURN_ZERO(env, jcanvas); |
| NPE_CHECK_RETURN_ZERO(env, rect); |
| SkCanvas* c = GraphicsJNI::getNativeCanvas(env, jcanvas); |
| SkRect tmp; |
| return c->clipRect(*GraphicsJNI::jrect_to_rect(env, rect, &tmp)); |
| } |
| |
| static jboolean clipRect(JNIEnv* env, jobject, SkCanvas* canvas, |
| float left, float top, float right, float bottom, |
| int op) { |
| SkRect rect; |
| rect.set(SkFloatToScalar(left), SkFloatToScalar(top), |
| SkFloatToScalar(right), SkFloatToScalar(bottom)); |
| return canvas->clipRect(rect, (SkRegion::Op)op); |
| } |
| |
| static jboolean clipPath(JNIEnv* env, jobject, SkCanvas* canvas, |
| SkPath* path, int op) { |
| return canvas->clipPath(*path, (SkRegion::Op)op); |
| } |
| |
| static jboolean clipRegion(JNIEnv* env, jobject, SkCanvas* canvas, |
| SkRegion* deviceRgn, int op) { |
| return canvas->clipRegion(*deviceRgn, (SkRegion::Op)op); |
| } |
| |
| static void setDrawFilter(JNIEnv* env, jobject, SkCanvas* canvas, |
| SkDrawFilter* filter) { |
| canvas->setDrawFilter(filter); |
| } |
| |
| static jboolean quickReject__RectFI(JNIEnv* env, jobject, SkCanvas* canvas, |
| jobject rect, int edgetype) { |
| SkRect rect_; |
| GraphicsJNI::jrectf_to_rect(env, rect, &rect_); |
| return canvas->quickReject(rect_, (SkCanvas::EdgeType)edgetype); |
| } |
| |
| static jboolean quickReject__PathI(JNIEnv* env, jobject, SkCanvas* canvas, |
| SkPath* path, int edgetype) { |
| return canvas->quickReject(*path, (SkCanvas::EdgeType)edgetype); |
| } |
| |
| static jboolean quickReject__FFFFI(JNIEnv* env, jobject, SkCanvas* canvas, |
| jfloat left, jfloat top, jfloat right, |
| jfloat bottom, int edgetype) { |
| SkRect r; |
| r.set(SkFloatToScalar(left), SkFloatToScalar(top), |
| SkFloatToScalar(right), SkFloatToScalar(bottom)); |
| return canvas->quickReject(r, (SkCanvas::EdgeType)edgetype); |
| } |
| |
| static void drawRGB(JNIEnv* env, jobject, SkCanvas* canvas, |
| jint r, jint g, jint b) { |
| canvas->drawARGB(0xFF, r, g, b); |
| } |
| |
| static void drawARGB(JNIEnv* env, jobject, SkCanvas* canvas, |
| jint a, jint r, jint g, jint b) { |
| canvas->drawARGB(a, r, g, b); |
| } |
| |
| static void drawColor__I(JNIEnv* env, jobject, SkCanvas* canvas, |
| jint color) { |
| canvas->drawColor(color); |
| } |
| |
| static void drawColor__II(JNIEnv* env, jobject, SkCanvas* canvas, |
| jint color, SkPorterDuff::Mode mode) { |
| canvas->drawColor(color, mode); |
| } |
| |
| static void drawPaint(JNIEnv* env, jobject, SkCanvas* canvas, |
| SkPaint* paint) { |
| canvas->drawPaint(*paint); |
| } |
| |
| static void doPoints(JNIEnv* env, jobject jcanvas, jfloatArray jptsArray, |
| jint offset, jint count, jobject jpaint, |
| SkCanvas::PointMode mode) { |
| NPE_CHECK_RETURN_VOID(env, jcanvas); |
| NPE_CHECK_RETURN_VOID(env, jptsArray); |
| NPE_CHECK_RETURN_VOID(env, jpaint); |
| SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, jcanvas); |
| const SkPaint& paint = *GraphicsJNI::getNativePaint(env, jpaint); |
| |
| 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(SkFloatToScalar(src[0]), SkFloatToScalar(src[1])); |
| src += 2; |
| } |
| canvas->drawPoints(mode, count, pts, paint); |
| } |
| |
| static void drawPoints(JNIEnv* env, jobject jcanvas, jfloatArray jptsArray, |
| jint offset, jint count, jobject jpaint) { |
| doPoints(env, jcanvas, jptsArray, offset, count, jpaint, |
| SkCanvas::kPoints_PointMode); |
| } |
| |
| static void drawLines(JNIEnv* env, jobject jcanvas, jfloatArray jptsArray, |
| jint offset, jint count, jobject jpaint) { |
| doPoints(env, jcanvas, jptsArray, offset, count, jpaint, |
| SkCanvas::kLines_PointMode); |
| } |
| |
| static void drawPoint(JNIEnv* env, jobject jcanvas, float x, float y, |
| jobject jpaint) { |
| NPE_CHECK_RETURN_VOID(env, jcanvas); |
| NPE_CHECK_RETURN_VOID(env, jpaint); |
| SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, jcanvas); |
| const SkPaint& paint = *GraphicsJNI::getNativePaint(env, jpaint); |
| |
| canvas->drawPoint(SkFloatToScalar(x), SkFloatToScalar(y), paint); |
| } |
| |
| static void drawLine__FFFFPaint(JNIEnv* env, jobject, SkCanvas* canvas, |
| jfloat startX, jfloat startY, jfloat stopX, |
| jfloat stopY, SkPaint* paint) { |
| canvas->drawLine(SkFloatToScalar(startX), SkFloatToScalar(startY), |
| SkFloatToScalar(stopX), SkFloatToScalar(stopY), |
| *paint); |
| } |
| |
| static void drawRect__RectFPaint(JNIEnv* env, jobject, SkCanvas* canvas, |
| jobject rect, SkPaint* paint) { |
| SkRect rect_; |
| GraphicsJNI::jrectf_to_rect(env, rect, &rect_); |
| canvas->drawRect(rect_, *paint); |
| } |
| |
| static void drawRect__FFFFPaint(JNIEnv* env, jobject, SkCanvas* canvas, |
| jfloat left, jfloat top, jfloat right, |
| jfloat bottom, SkPaint* paint) { |
| SkScalar left_ = SkFloatToScalar(left); |
| SkScalar top_ = SkFloatToScalar(top); |
| SkScalar right_ = SkFloatToScalar(right); |
| SkScalar bottom_ = SkFloatToScalar(bottom); |
| canvas->drawRectCoords(left_, top_, right_, bottom_, *paint); |
| } |
| |
| static void drawOval(JNIEnv* env, jobject, SkCanvas* canvas, jobject joval, |
| SkPaint* paint) { |
| SkRect oval; |
| GraphicsJNI::jrectf_to_rect(env, joval, &oval); |
| canvas->drawOval(oval, *paint); |
| } |
| |
| static void drawCircle(JNIEnv* env, jobject, SkCanvas* canvas, jfloat cx, |
| jfloat cy, jfloat radius, SkPaint* paint) { |
| canvas->drawCircle(SkFloatToScalar(cx), SkFloatToScalar(cy), |
| SkFloatToScalar(radius), *paint); |
| } |
| |
| static void drawArc(JNIEnv* env, jobject, SkCanvas* canvas, jobject joval, |
| jfloat startAngle, jfloat sweepAngle, |
| jboolean useCenter, SkPaint* paint) { |
| SkRect oval; |
| GraphicsJNI::jrectf_to_rect(env, joval, &oval); |
| canvas->drawArc(oval, SkFloatToScalar(startAngle), |
| SkFloatToScalar(sweepAngle), useCenter, *paint); |
| } |
| |
| static void drawRoundRect(JNIEnv* env, jobject, SkCanvas* canvas, |
| jobject jrect, jfloat rx, jfloat ry, |
| SkPaint* paint) { |
| SkRect rect; |
| GraphicsJNI::jrectf_to_rect(env, jrect, &rect); |
| canvas->drawRoundRect(rect, SkFloatToScalar(rx), SkFloatToScalar(ry), |
| *paint); |
| } |
| |
| static void drawPath(JNIEnv* env, jobject, SkCanvas* canvas, SkPath* path, |
| SkPaint* paint) { |
| canvas->drawPath(*path, *paint); |
| } |
| |
| static void drawPicture(JNIEnv* env, jobject, SkCanvas* canvas, |
| SkPicture* picture) { |
| SkASSERT(canvas); |
| SkASSERT(picture); |
| |
| #ifdef TIME_DRAW |
| SkMSec now = get_thread_msec(); //SkTime::GetMSecs(); |
| #endif |
| canvas->drawPicture(*picture); |
| #ifdef TIME_DRAW |
| LOGD("---- picture playback %d ms\n", get_thread_msec() - now); |
| #endif |
| } |
| |
| static void drawBitmap__BitmapFFPaint(JNIEnv* env, jobject jcanvas, |
| SkCanvas* canvas, SkBitmap* bitmap, |
| jfloat left, jfloat top, |
| SkPaint* paint, |
| jboolean autoScale, jfloat densityScale) { |
| SkScalar left_ = SkFloatToScalar(left); |
| SkScalar top_ = SkFloatToScalar(top); |
| |
| if (!autoScale || densityScale <= 0.0f) { |
| canvas->drawBitmap(*bitmap, left_, top_, paint); |
| } else { |
| canvas->save(); |
| SkScalar canvasScale = GraphicsJNI::getCanvasDensityScale(env, jcanvas); |
| SkScalar scale = canvasScale / SkFloatToScalar(densityScale); |
| canvas->scale(scale, scale); |
| |
| SkPaint filteredPaint; |
| if (paint) { |
| filteredPaint = *paint; |
| } |
| filteredPaint.setFilterBitmap(true); |
| |
| canvas->drawBitmap(*bitmap, left_, top_, &filteredPaint); |
| |
| canvas->restore(); |
| } |
| } |
| |
| static void doDrawBitmap(JNIEnv* env, SkCanvas* canvas, SkBitmap* bitmap, |
| jobject srcIRect, const SkRect& dst, SkPaint* paint) { |
| SkIRect src, *srcPtr = NULL; |
| |
| if (NULL != srcIRect) { |
| GraphicsJNI::jrect_to_irect(env, srcIRect, &src); |
| srcPtr = &src; |
| } |
| canvas->drawBitmapRect(*bitmap, srcPtr, dst, paint); |
| } |
| |
| static void drawBitmapRF(JNIEnv* env, jobject, SkCanvas* canvas, |
| SkBitmap* bitmap, jobject srcIRect, |
| jobject dstRectF, SkPaint* paint) { |
| SkRect dst; |
| GraphicsJNI::jrectf_to_rect(env, dstRectF, &dst); |
| doDrawBitmap(env, canvas, bitmap, srcIRect, dst, paint); |
| } |
| |
| static void drawBitmapRR(JNIEnv* env, jobject, SkCanvas* canvas, |
| SkBitmap* bitmap, jobject srcIRect, |
| jobject dstRect, SkPaint* paint) { |
| SkRect dst; |
| GraphicsJNI::jrect_to_rect(env, dstRect, &dst); |
| doDrawBitmap(env, canvas, bitmap, srcIRect, dst, paint); |
| } |
| |
| static void drawBitmapArray(JNIEnv* env, jobject, SkCanvas* canvas, |
| jintArray jcolors, int offset, int stride, |
| jfloat x, jfloat y, int width, int height, |
| jboolean hasAlpha, SkPaint* paint) |
| { |
| SkBitmap bitmap; |
| |
| bitmap.setConfig(hasAlpha ? SkBitmap::kARGB_8888_Config : |
| SkBitmap::kRGB_565_Config, width, height); |
| if (!bitmap.allocPixels()) { |
| return; |
| } |
| |
| if (!GraphicsJNI::SetPixels(env, jcolors, offset, stride, |
| 0, 0, width, height, bitmap)) { |
| return; |
| } |
| |
| canvas->drawBitmap(bitmap, SkFloatToScalar(x), SkFloatToScalar(y), |
| paint); |
| } |
| |
| static void drawBitmapMatrix(JNIEnv* env, jobject, SkCanvas* canvas, |
| const SkBitmap* bitmap, const SkMatrix* matrix, |
| const SkPaint* paint) { |
| canvas->drawBitmapMatrix(*bitmap, *matrix, paint); |
| } |
| |
| static void drawBitmapMesh(JNIEnv* env, jobject, SkCanvas* canvas, |
| const SkBitmap* bitmap, int meshWidth, int meshHeight, |
| jfloatArray jverts, int vertIndex, jintArray jcolors, |
| int colorIndex, const SkPaint* paint) { |
| |
| 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[] |
| #ifdef SK_SCALAR_IS_FIXED |
| storageSize += ptCount * sizeof(SkPoint); // storage for verts |
| #endif |
| 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 |
| verts = texs + ptCount; |
| indices = (uint16_t*)(verts + ptCount); |
| // convert floats to fixed |
| { |
| const float* src = vertA.ptr() + vertIndex; |
| for (int i = 0; i < ptCount; i++) { |
| verts[i].set(SkFloatToFixed(src[0]), SkFloatToFixed(src[1])); |
| src += 2; |
| } |
| } |
| #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); |
| tmpPaint.setShader(shader)->safeUnref(); |
| |
| canvas->drawVertices(SkCanvas::kTriangles_VertexMode, ptCount, verts, |
| texs, (const SkColor*)colorA.ptr(), NULL, indices, |
| indexCount, tmpPaint); |
| } |
| |
| static void drawVertices(JNIEnv* env, jobject, SkCanvas* canvas, |
| SkCanvas::VertexMode mode, int vertexCount, |
| jfloatArray jverts, int vertIndex, |
| jfloatArray jtexs, int texIndex, |
| jintArray jcolors, int colorIndex, |
| jshortArray jindices, int indexIndex, |
| int indexCount, const SkPaint* paint) { |
| |
| 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 |
| int count = ptCount; // for verts |
| if (jtexs != NULL) { |
| count += ptCount; // += for texs |
| } |
| SkAutoMalloc storage(count * sizeof(SkPoint)); |
| verts = (SkPoint*)storage.get(); |
| const float* src = vertA.ptr() + vertIndex; |
| for (int i = 0; i < ptCount; i++) { |
| verts[i].set(SkFloatToFixed(src[0]), SkFloatToFixed(src[1])); |
| src += 2; |
| } |
| if (jtexs != NULL) { |
| texs = verts + ptCount; |
| src = texA.ptr() + texIndex; |
| for (int i = 0; i < ptCount; i++) { |
| texs[i].set(SkFloatToFixed(src[0]), SkFloatToFixed(src[1])); |
| src += 2; |
| } |
| } |
| #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___CIIFFPaint(JNIEnv* env, jobject, SkCanvas* canvas, |
| jcharArray text, int index, int count, |
| jfloat x, jfloat y, SkPaint* paint) { |
| jchar* textArray = env->GetCharArrayElements(text, NULL); |
| jsize textCount = env->GetArrayLength(text); |
| SkScalar x_ = SkFloatToScalar(x); |
| SkScalar y_ = SkFloatToScalar(y); |
| textArray += index; |
| canvas->drawText(textArray, count << 1, x_, y_, *paint); |
| env->ReleaseCharArrayElements(text, textArray, 0); |
| } |
| |
| static void drawText__StringIIFFPaint(JNIEnv* env, jobject, |
| SkCanvas* canvas, jstring text, int start, int end, |
| jfloat x, jfloat y, SkPaint* paint) { |
| const void* text_ = env->GetStringChars(text, NULL); |
| SkScalar x_ = SkFloatToScalar(x); |
| SkScalar y_ = SkFloatToScalar(y); |
| canvas->drawText((const uint16_t*)text_ + start, (end - start) << 1, |
| x_, y_, *paint); |
| env->ReleaseStringChars(text, (const jchar*) text_); |
| } |
| |
| static void drawString(JNIEnv* env, jobject canvas, jstring text, |
| jfloat x, jfloat y, jobject paint) { |
| NPE_CHECK_RETURN_VOID(env, canvas); |
| NPE_CHECK_RETURN_VOID(env, paint); |
| NPE_CHECK_RETURN_VOID(env, text); |
| size_t count = env->GetStringLength(text); |
| if (0 == count) { |
| return; |
| } |
| const jchar* text_ = env->GetStringChars(text, NULL); |
| SkCanvas* c = GraphicsJNI::getNativeCanvas(env, canvas); |
| c->drawText(text_, count << 1, SkFloatToScalar(x), SkFloatToScalar(y), |
| *GraphicsJNI::getNativePaint(env, paint)); |
| env->ReleaseStringChars(text, text_); |
| } |
| |
| static void drawPosText___CII_FPaint(JNIEnv* env, jobject, SkCanvas* canvas, |
| jcharArray text, int index, int count, |
| jfloatArray pos, SkPaint* paint) { |
| 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 = SkFloatToScalar(posArray[indx << 1]); |
| posPtr[indx].fY = SkFloatToScalar(posArray[(indx << 1) + 1]); |
| } |
| textArray += index; |
| canvas->drawPosText(textArray, count << 1, posPtr, *paint); |
| if (text) { |
| env->ReleaseCharArrayElements(text, textArray, 0); |
| } |
| if (pos) { |
| env->ReleaseFloatArrayElements(pos, posArray, 0); |
| } |
| delete[] posPtr; |
| } |
| |
| static void drawPosText__String_FPaint(JNIEnv* env, jobject, |
| SkCanvas* canvas, jstring text, |
| jfloatArray pos, SkPaint* paint) { |
| 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 = SkFloatToScalar(posArray[indx << 1]); |
| posPtr[indx].fY = SkFloatToScalar(posArray[(indx << 1) + 1]); |
| } |
| canvas->drawPosText(text_, byteLength << 1, posPtr, *paint); |
| if (text) { |
| env->ReleaseStringChars(text, (const jchar*) text_); |
| } |
| if (pos) { |
| env->ReleaseFloatArrayElements(pos, posArray, 0); |
| } |
| delete[] posPtr; |
| } |
| |
| static void drawTextOnPath___CIIPathFFPaint(JNIEnv* env, jobject, |
| SkCanvas* canvas, jcharArray text, int index, int count, |
| SkPath* path, jfloat hOffset, jfloat vOffset, SkPaint* paint) { |
| |
| jchar* textArray = env->GetCharArrayElements(text, NULL); |
| canvas->drawTextOnPathHV(textArray + index, count << 1, *path, |
| SkFloatToScalar(hOffset), SkFloatToScalar(vOffset), *paint); |
| env->ReleaseCharArrayElements(text, textArray, 0); |
| } |
| |
| static void drawTextOnPath__StringPathFFPaint(JNIEnv* env, jobject, |
| SkCanvas* canvas, jstring text, SkPath* path, |
| jfloat hOffset, jfloat vOffset, SkPaint* paint) { |
| const jchar* text_ = env->GetStringChars(text, NULL); |
| int byteLength = env->GetStringLength(text) << 1; |
| canvas->drawTextOnPathHV(text_, byteLength, *path, |
| SkFloatToScalar(hOffset), SkFloatToScalar(vOffset), *paint); |
| env->ReleaseStringChars(text, text_); |
| } |
| |
| static bool getClipBounds(JNIEnv* env, jobject, SkCanvas* canvas, |
| jobject bounds) { |
| SkRect r; |
| SkIRect ir; |
| bool result = canvas->getClipBounds(&r, SkCanvas::kBW_EdgeType); |
| |
| r.round(&ir); |
| (void)GraphicsJNI::irect_to_jrect(ir, env, bounds); |
| return result; |
| } |
| |
| static void getCTM(JNIEnv* env, jobject, SkCanvas* canvas, |
| SkMatrix* matrix) { |
| *matrix = canvas->getTotalMatrix(); |
| } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static JNINativeMethod gCanvasMethods[] = { |
| {"finalizer", "(I)V", (void*) SkCanvasGlue::finalizer}, |
| {"initRaster","(I)I", (void*) SkCanvasGlue::initRaster}, |
| {"initGL","()I", (void*) SkCanvasGlue::initGL}, |
| {"isOpaque","()Z", (void*) SkCanvasGlue::isOpaque}, |
| {"getWidth","()I", (void*) SkCanvasGlue::getWidth}, |
| {"getHeight","()I", (void*) SkCanvasGlue::getHeight}, |
| {"native_setBitmap","(II)V", (void*) SkCanvasGlue::setBitmap}, |
| {"nativeSetViewport", "(III)V", (void*) SkCanvasGlue::setViewport}, |
| {"save","()I", (void*) SkCanvasGlue::saveAll}, |
| {"save","(I)I", (void*) SkCanvasGlue::save}, |
| {"native_saveLayer","(ILandroid/graphics/RectF;II)I", |
| (void*) SkCanvasGlue::saveLayer}, |
| {"native_saveLayer","(IFFFFII)I", (void*) SkCanvasGlue::saveLayer4F}, |
| {"native_saveLayerAlpha","(ILandroid/graphics/RectF;II)I", |
| (void*) SkCanvasGlue::saveLayerAlpha}, |
| {"native_saveLayerAlpha","(IFFFFII)I", |
| (void*) SkCanvasGlue::saveLayerAlpha4F}, |
| {"restore","()V", (void*) SkCanvasGlue::restore}, |
| {"getSaveCount","()I", (void*) SkCanvasGlue::getSaveCount}, |
| {"restoreToCount","(I)V", (void*) SkCanvasGlue::restoreToCount}, |
| {"translate","(FF)V", (void*) SkCanvasGlue::translate}, |
| {"scale","(FF)V", (void*) SkCanvasGlue::scale__FF}, |
| {"rotate","(F)V", (void*) SkCanvasGlue::rotate__F}, |
| {"skew","(FF)V", (void*) SkCanvasGlue::skew__FF}, |
| {"native_concat","(II)V", (void*) SkCanvasGlue::concat}, |
| {"native_setMatrix","(II)V", (void*) SkCanvasGlue::setMatrix}, |
| {"clipRect","(FFFF)Z", (void*) SkCanvasGlue::clipRect_FFFF}, |
| {"clipRect","(IIII)Z", (void*) SkCanvasGlue::clipRect_IIII}, |
| {"clipRect","(Landroid/graphics/RectF;)Z", |
| (void*) SkCanvasGlue::clipRect_RectF}, |
| {"clipRect","(Landroid/graphics/Rect;)Z", |
| (void*) SkCanvasGlue::clipRect_Rect}, |
| {"native_clipRect","(IFFFFI)Z", (void*) SkCanvasGlue::clipRect}, |
| {"native_clipPath","(III)Z", (void*) SkCanvasGlue::clipPath}, |
| {"native_clipRegion","(III)Z", (void*) SkCanvasGlue::clipRegion}, |
| {"nativeSetDrawFilter", "(II)V", (void*) SkCanvasGlue::setDrawFilter}, |
| {"native_getClipBounds","(ILandroid/graphics/Rect;)Z", |
| (void*) SkCanvasGlue::getClipBounds}, |
| {"native_getCTM", "(II)V", (void*)SkCanvasGlue::getCTM}, |
| {"native_quickReject","(ILandroid/graphics/RectF;I)Z", |
| (void*) SkCanvasGlue::quickReject__RectFI}, |
| {"native_quickReject","(III)Z", (void*) SkCanvasGlue::quickReject__PathI}, |
| {"native_quickReject","(IFFFFI)Z", (void*)SkCanvasGlue::quickReject__FFFFI}, |
| {"native_drawRGB","(IIII)V", (void*) SkCanvasGlue::drawRGB}, |
| {"native_drawARGB","(IIIII)V", (void*) SkCanvasGlue::drawARGB}, |
| {"native_drawColor","(II)V", (void*) SkCanvasGlue::drawColor__I}, |
| {"native_drawColor","(III)V", (void*) SkCanvasGlue::drawColor__II}, |
| {"native_drawPaint","(II)V", (void*) SkCanvasGlue::drawPaint}, |
| {"drawPoint", "(FFLandroid/graphics/Paint;)V", |
| (void*) SkCanvasGlue::drawPoint}, |
| {"drawPoints", "([FIILandroid/graphics/Paint;)V", |
| (void*) SkCanvasGlue::drawPoints}, |
| {"drawLines", "([FIILandroid/graphics/Paint;)V", |
| (void*) SkCanvasGlue::drawLines}, |
| {"native_drawLine","(IFFFFI)V", (void*) SkCanvasGlue::drawLine__FFFFPaint}, |
| {"native_drawRect","(ILandroid/graphics/RectF;I)V", |
| (void*) SkCanvasGlue::drawRect__RectFPaint}, |
| {"native_drawRect","(IFFFFI)V", (void*) SkCanvasGlue::drawRect__FFFFPaint}, |
| {"native_drawOval","(ILandroid/graphics/RectF;I)V", |
| (void*) SkCanvasGlue::drawOval}, |
| {"native_drawCircle","(IFFFI)V", (void*) SkCanvasGlue::drawCircle}, |
| {"native_drawArc","(ILandroid/graphics/RectF;FFZI)V", |
| (void*) SkCanvasGlue::drawArc}, |
| {"native_drawRoundRect","(ILandroid/graphics/RectF;FFI)V", |
| (void*) SkCanvasGlue::drawRoundRect}, |
| {"native_drawPath","(III)V", (void*) SkCanvasGlue::drawPath}, |
| {"native_drawBitmap","(IIFFIZF)V", |
| (void*) SkCanvasGlue::drawBitmap__BitmapFFPaint}, |
| {"native_drawBitmap","(IILandroid/graphics/Rect;Landroid/graphics/RectF;I)V", |
| (void*) SkCanvasGlue::drawBitmapRF}, |
| {"native_drawBitmap","(IILandroid/graphics/Rect;Landroid/graphics/Rect;I)V", |
| (void*) SkCanvasGlue::drawBitmapRR}, |
| {"native_drawBitmap", "(I[IIIFFIIZI)V", |
| (void*)SkCanvasGlue::drawBitmapArray}, |
| |
| {"nativeDrawBitmapMatrix", "(IIII)V", |
| (void*)SkCanvasGlue::drawBitmapMatrix}, |
| {"nativeDrawBitmapMesh", "(IIII[FI[III)V", |
| (void*)SkCanvasGlue::drawBitmapMesh}, |
| {"nativeDrawVertices", "(III[FI[FI[II[SIII)V", |
| (void*)SkCanvasGlue::drawVertices}, |
| {"native_drawText","(I[CIIFFI)V", |
| (void*) SkCanvasGlue::drawText___CIIFFPaint}, |
| {"native_drawText","(ILjava/lang/String;IIFFI)V", |
| (void*) SkCanvasGlue::drawText__StringIIFFPaint}, |
| {"drawText","(Ljava/lang/String;FFLandroid/graphics/Paint;)V", |
| (void*) SkCanvasGlue::drawString}, |
| {"native_drawPosText","(I[CII[FI)V", |
| (void*) SkCanvasGlue::drawPosText___CII_FPaint}, |
| {"native_drawPosText","(ILjava/lang/String;[FI)V", |
| (void*) SkCanvasGlue::drawPosText__String_FPaint}, |
| {"native_drawTextOnPath","(I[CIIIFFI)V", |
| (void*) SkCanvasGlue::drawTextOnPath___CIIPathFFPaint}, |
| {"native_drawTextOnPath","(ILjava/lang/String;IFFI)V", |
| (void*) SkCanvasGlue::drawTextOnPath__StringPathFFPaint}, |
| {"native_drawPicture", "(II)V", (void*) SkCanvasGlue::drawPicture}, |
| |
| {"freeGlCaches", "()V", (void*) SkCanvasGlue::freeGlCaches} |
| }; |
| |
| #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; |
| } |
| |
| } |
