102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <assert.h>
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#include <sys/socket.h>
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#include <core/SkCanvas.h>
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#include <core/SkDevice.h>
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#include <core/SkPaint.h>
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#include <utils/SkGLCanvas.h>
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#include "GraphicsJNI.h"
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#include "jni.h"
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#include <nativehelper/JNIHelp.h>
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#include <android_runtime/AndroidRuntime.h>
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#include <utils/misc.h>
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// ----------------------------------------------------------------------------
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namespace android {
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static int gPrevDur;
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static void android_view_ViewRoot_showFPS(JNIEnv* env, jobject, jobject jcanvas,
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jint dur) {
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NPE_CHECK_RETURN_VOID(env, jcanvas);
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SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, jcanvas);
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const SkBitmap& bm = canvas->getDevice()->accessBitmap(false);
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int height = bm.height();
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SkScalar bot = SkIntToScalar(height);
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if (height < 200) {
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return;
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}
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SkMatrix m;
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SkRect r;
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SkPaint p;
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char str[4];
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dur = (gPrevDur + dur) >> 1;
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gPrevDur = dur;
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dur = 1000 / dur;
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str[3] = (char)('0' + dur % 10); dur /= 10;
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str[2] = (char)('0' + dur % 10); dur /= 10;
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str[1] = (char)('0' + dur % 10); dur /= 10;
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str[0] = (char)('0' + dur % 10);
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m.reset();
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r.set(0, bot-SkIntToScalar(10), SkIntToScalar(26), bot);
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p.setAntiAlias(true);
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p.setTextSize(SkIntToScalar(10));
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canvas->save();
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canvas->setMatrix(m);
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canvas->clipRect(r, SkRegion::kReplace_Op);
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p.setColor(SK_ColorWHITE);
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canvas->drawPaint(p);
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p.setColor(SK_ColorBLACK);
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canvas->drawText(str, 4, SkIntToScalar(1), bot - SK_Scalar1, p);
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canvas->restore();
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}
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static void android_view_ViewRoot_abandonGlCaches(JNIEnv* env, jobject) {
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SkGLCanvas::AbandonAllTextures();
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}
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// ----------------------------------------------------------------------------
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const char* const kClassPathName = "android/view/ViewRoot";
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static JNINativeMethod gMethods[] = {
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{ "nativeShowFPS", "(Landroid/graphics/Canvas;I)V",
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(void*)android_view_ViewRoot_showFPS },
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{ "nativeAbandonGlCaches", "()V",
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(void*)android_view_ViewRoot_abandonGlCaches }
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};
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int register_android_view_ViewRoot(JNIEnv* env) {
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return AndroidRuntime::registerNativeMethods(env,
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kClassPathName, gMethods, NELEM(gMethods));
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}
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};
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