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Reduce native allocation calls amount by reusing previously allocated buffer if possible

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This commit is contained in:
Alexey Pelykh 2012-03-01 14:25:12 +02:00
parent b9f1dfc3e9
commit 075642c19f
2 changed files with 19 additions and 7 deletions
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25
OsmAnd/jni/osmand/rendering.cpp
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@ -694,10 +694,11 @@ void loadJNIRendering(){
JUnidecode_unidecode = globalEnv()->GetStaticMethodID(JUnidecodeClass, "unidecode", "(Ljava/lang/String;)Ljava/lang/String;");
}
#ifdef __cplusplus
extern "C" {
#endif
void* bitmapData = NULL;
size_t bitmapDataSize = 0;
JNIEXPORT jobject JNICALL Java_net_osmand_plus_render_NativeOsmandLibrary_generateRendering( JNIEnv* ienv, jobject obj,
jobject renderingContext, jint searchResult, jint requestedBitmapWidth, jint requestedBitmapHeight, jboolean isTransparent,
jboolean useEnglishNames, jobject renderingRuleSearchRequest, jint defaultColor) {
@ -712,11 +713,19 @@ JNIEXPORT jobject JNICALL Java_net_osmand_plus_render_NativeOsmandLibrary_genera
else
bitmap->setConfig(SkBitmap::kRGB_565_Config, requestedBitmapWidth, requestedBitmapHeight);
void* bitmapData = malloc(bitmap->getSize());
//TODO: Quite possible increase of speed - [re]allocate buffer only if size changed in greated direction?
sprintf(debugMessage, "Allocated %d bytes at %p", bitmap->getSize(), bitmapData);
__android_log_print(ANDROID_LOG_WARN, "net.osmand", debugMessage);
// re]allocate buffer only if size changed in greated direction?
if(bitmapData != NULL && bitmapDataSize != bitmap->getSize()) {
free(bitmapData);
bitmapData = NULL;
bitmapDataSize = 0;
}
if(bitmapData == NULL && bitmapDataSize == 0) {
bitmapDataSize = bitmap->getSize();
bitmapData = malloc(bitmapDataSize);
sprintf(debugMessage, "Allocated %d bytes at %p", bitmapDataSize, bitmapData);
__android_log_print(ANDROID_LOG_WARN, "net.osmand", debugMessage);
}
bitmap->setPixels(bitmapData);
@ -773,6 +782,7 @@ JNIEXPORT jobject JNICALL Java_net_osmand_plus_render_NativeOsmandLibrary_genera
#else
sprintf(debugMessage, "Native ok (init %d, rendering %d) ", initObjects.getElapsedTime(), rc.nativeOperations.getElapsedTime());
#endif
__android_log_print(ANDROID_LOG_WARN, "net.osmand", debugMessage);
// Allocate ctor paramters
jobject bitmapBuffer = ienv->NewDirectByteBuffer(bitmapData, bitmap->getSize());
@ -788,6 +798,8 @@ JNIEXPORT jobject JNICALL Java_net_osmand_plus_render_NativeOsmandLibrary_releas
jobject results) {
setGlobalEnv(ienv);
// Not needed
/*
jclass resultClass = ienv->FindClass("net/osmand/plus/render/NativeOsmandLibrary$RenderingGenerationResult");
if(!resultClass)
resultClass = ienv->FindClass("net/osmand/render/NativeOsmandLibrary$RenderingGenerationResult");
@ -796,6 +808,7 @@ JNIEXPORT jobject JNICALL Java_net_osmand_plus_render_NativeOsmandLibrary_releas
void *buffer = ienv->GetDirectBufferAddress(bitmapBuffer);
free(buffer);
*/
}
#ifdef __cplusplus

1
OsmAnd/src/net/osmand/plus/render/OsmandRenderer.java
View file

@ -8,7 +8,6 @@ import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.nio.ByteBuffer;
import net.osmand.Algoritms;
import net.osmand.LogUtil;