Load bitmap resources entirely from native code. (650a3eb7) · Commits · e / os / android_frameworks_base

graphics/java/android/graphics/BitmapFactory.java

+11 −4

Original line number	Diff line number	Diff line
		@@ -337,19 +337,26 @@ public class BitmapFactory {
		*/
		public static Bitmap decodeResource(Resources res, int id, Options opts) {
		Bitmap bm = null;
		InputStream is = null;

		try {
		final TypedValue value = new TypedValue();
		final InputStream is = res.openRawResource(id, value);
		is = res.openRawResource(id, value);

		bm = decodeResourceStream(res, value, is, null, opts);
		is.close();
		} catch (java.io.IOException e) {
		} catch (Exception e) {
		/* do nothing.
		If the exception happened on open, bm will be null.
		If it happened on close, bm is still valid.
		*/
		} finally {
		try {
		if (is != null) is.close();
		} catch (IOException e) {
		// Ignore
		}
		}

		return bm;
		}

graphics/java/android/renderscript/Allocation.java

+27 −10

Original line number	Diff line number	Diff line
		@@ -16,19 +16,15 @@

		package android.renderscript;

		import java.lang.reflect.Field;
		import java.lang.reflect.Array;

		import java.io.IOException;
		import java.io.InputStream;

		import android.content.res.Resources;
		import android.content.res.AssetManager;
		import android.graphics.Bitmap;
		import android.graphics.BitmapFactory;
		import android.os.Bundle;
		import android.renderscript.Type;
		import android.util.Config;
		import android.util.Log;
		import android.util.TypedValue;

		/**
		* @hide
		@@ -52,7 +48,7 @@ public class Allocation extends BaseObj {
		}

		public void data(int[] d) {
		int size = 0;
		int size;
		if(mType != null && mType.mElement != null) {
		size = mType.mElement.mSize;
		for(int ct=0; ct < mType.mValues.length; ct++) {
		@@ -71,7 +67,7 @@ public class Allocation extends BaseObj {
		}

		public void data(float[] d) {
		int size = 0;
		int size;
		if(mType != null && mType.mElement != null) {
		size = mType.mElement.mSize;
		for(int ct=0; ct < mType.mValues.length; ct++) {
		@@ -245,8 +241,29 @@ public class Allocation extends BaseObj {
		static public Allocation createFromBitmapResource(RenderScript rs, Resources res, int id, Element dstFmt, boolean genMips)
		throws IllegalArgumentException {

		Bitmap b = BitmapFactory.decodeResource(res, id, mBitmapOptions);
		return createFromBitmap(rs, b, dstFmt, genMips);
		InputStream is = null;
		try {
		final TypedValue value = new TypedValue();
		is = res.openRawResource(id, value);

		int asset = ((AssetManager.AssetInputStream) is).getAssetInt();
		int allocationId = rs.nAllocationCreateFromAssetStream(dstFmt.mPredefinedID, genMips,
		asset);

		return new Allocation(allocationId, rs, null);
		} catch (Exception e) {
		// Ignore
		} finally {
		if (is != null) {
		try {
		is.close();
		} catch (IOException e) {
		// Ignore
		}
		}
		}

		return null;
		}

		static public Allocation createFromBitmapResourceBoxed(RenderScript rs, Resources res, int id, Element dstFmt, boolean genMips)

graphics/java/android/renderscript/RenderScript.java

+5 −4

Original line number	Diff line number	Diff line
		@@ -16,13 +16,10 @@

		package android.renderscript;

		import java.io.IOException;
		import java.io.InputStream;
		import java.lang.reflect.Field;

		import android.content.res.Resources;
		import android.graphics.Bitmap;
		import android.renderscript.Type;
		import android.graphics.BitmapFactory;
		import android.util.Config;
		import android.util.Log;
		import android.view.Surface;
		@@ -35,6 +32,7 @@ import android.view.Surface;
		public class RenderScript {
		static final String LOG_TAG = "libRS_jni";
		private static final boolean DEBUG = false;
		@SuppressWarnings({"UnusedDeclaration", "deprecation"})
		private static final boolean LOG_ENABLED = DEBUG ? Config.LOGD : Config.LOGV;


		@@ -43,6 +41,7 @@ public class RenderScript {
		* We use a class initializer to allow the native code to cache some
		* field offsets.
		*/
		@SuppressWarnings({"FieldCanBeLocal", "UnusedDeclaration"})
		private static boolean sInitialized;
		native private static void _nInit();

		@@ -95,6 +94,7 @@ public class RenderScript {
		native int nAllocationCreateSized(int elem, int count);
		native int nAllocationCreateFromBitmap(int dstFmt, boolean genMips, Bitmap bmp);
		native int nAllocationCreateFromBitmapBoxed(int dstFmt, boolean genMips, Bitmap bmp);
		native int nAllocationCreateFromAssetStream(int dstFmt, boolean genMips, int assetStream);

		native void nAllocationUploadToTexture(int alloc, int baseMioLevel);
		native void nAllocationUploadToBufferObject(int alloc);
		@@ -188,6 +188,7 @@ public class RenderScript {

		private int mDev;
		private int mContext;
		@SuppressWarnings({"FieldCanBeLocal"})
		private Surface mSurface;

		private static boolean mElementsInitialized = false;

graphics/jni/android_renderscript_RenderScript.cpp

+33 −0

Original line number	Diff line number	Diff line
		@@ -26,7 +26,13 @@
		#include <ui/Surface.h>

		#include <core/SkBitmap.h>
		#include <core/SkPixelRef.h>
		#include <core/SkStream.h>
		#include <core/SkTemplates.h>
		#include <images/SkImageDecoder.h>

		#include <utils/Asset.h>
		#include <utils/ResourceTypes.h>

		#include "jni.h"
		#include "JNIHelp.h"
		@@ -396,6 +402,32 @@ nAllocationCreateFromBitmap(JNIEnv *_env, jobject _this, jint dstFmt, jboolean g
		return 0;
		}

		static int
		nAllocationCreateFromAssetStream(JNIEnv *_env, jobject _this, jint dstFmt, jboolean genMips, jint native_asset)
		{
		RsContext con = (RsContext)(_env->GetIntField(_this, gContextId));

		Asset* asset = reinterpret_cast<Asset*>(native_asset);
		SkBitmap bitmap;
		SkImageDecoder::DecodeMemory(asset->getBuffer(false), asset->getLength(),
		&bitmap, SkBitmap::kNo_Config, SkImageDecoder::kDecodePixels_Mode);

		SkBitmap::Config config = bitmap.getConfig();

		RsElementPredefined e = SkBitmapToPredefined(config);

		if (e != RS_ELEMENT_USER_U8) {
		bitmap.lockPixels();
		const int w = bitmap.width();
		const int h = bitmap.height();
		const void* ptr = bitmap.getPixels();
		jint id = (jint)rsAllocationCreateFromBitmap(con, w, h, (RsElementPredefined)dstFmt, e, genMips, ptr);
		bitmap.unlockPixels();
		return id;
		}
		return 0;
		}

		static int
		nAllocationCreateFromBitmapBoxed(JNIEnv *_env, jobject _this, jint dstFmt, jboolean genMips, jobject jbitmap)
		{
		@@ -1239,6 +1271,7 @@ static JNINativeMethod methods[] = {
		{"nAllocationCreateSized", "(II)I", (void*)nAllocationCreateSized },
		{"nAllocationCreateFromBitmap", "(IZLandroid/graphics/Bitmap;)I", (void*)nAllocationCreateFromBitmap },
		{"nAllocationCreateFromBitmapBoxed","(IZLandroid/graphics/Bitmap;)I", (void*)nAllocationCreateFromBitmapBoxed },
		{"nAllocationCreateFromAssetStream","(IZI)I", (void*)nAllocationCreateFromAssetStream },
		{"nAllocationUploadToTexture", "(II)V", (void*)nAllocationUploadToTexture },
		{"nAllocationUploadToBufferObject","(I)V", (void*)nAllocationUploadToBufferObject },
		{"nAllocationData", "(I[II)V", (void*)nAllocationData_i },