Import FrameSequence
Change-Id: I09b668925366a22e8e7e80e4abeae24b3a98c639
(cherry picked from commit a1265c3d8a20e805e0c45083d5c7d728d4b70009)
diff --git a/framesequence/Android.mk b/framesequence/Android.mk
new file mode 100644
index 0000000..efce18d
--- /dev/null
+++ b/framesequence/Android.mk
@@ -0,0 +1,26 @@
+#
+# 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.
+#
+
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := android-common-framesequence
+#LOCAL_SDK_VERSION := 8
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
+
+include $(BUILD_STATIC_JAVA_LIBRARY)
+
+include $(call all-makefiles-under, $(LOCAL_PATH))
\ No newline at end of file
diff --git a/framesequence/AndroidManifest.xml b/framesequence/AndroidManifest.xml
new file mode 100644
index 0000000..f815643
--- /dev/null
+++ b/framesequence/AndroidManifest.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2013 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.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="android.support.rastermill">
+ <uses-sdk android:minSdkVersion="8"/>
+</manifest>
diff --git a/framesequence/build.xml b/framesequence/build.xml
new file mode 100644
index 0000000..b977ef7
--- /dev/null
+++ b/framesequence/build.xml
@@ -0,0 +1,115 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project name="rastermill" default="help">
+
+ <!-- The local.properties file is created and updated by the 'android' tool.
+ It contains the path to the SDK. It should *NOT* be checked into
+ Version Control Systems. -->
+ <property file="local.properties" />
+
+ <!-- The ant.properties file can be created by you. It is only edited by the
+ 'android' tool to add properties to it.
+ This is the place to change some Ant specific build properties.
+ Here are some properties you may want to change/update:
+
+ source.dir
+ The name of the source directory. Default is 'src'.
+ out.dir
+ The name of the output directory. Default is 'bin'.
+
+ For other overridable properties, look at the beginning of the rules
+ files in the SDK, at tools/ant/build.xml
+
+ Properties related to the SDK location or the project target should
+ be updated using the 'android' tool with the 'update' action.
+
+ This file is an integral part of the build system for your
+ application and should be checked into Version Control Systems.
+
+ -->
+ <property file="ant.properties" />
+
+ <property name="export.dir" value="exported_libs" />
+
+ <!-- if sdk.dir was not set from one of the property file, then
+ get it from the ANDROID_HOME env var.
+ This must be done before we load project.properties since
+ the proguard config can use sdk.dir -->
+ <property environment="env" />
+ <condition property="sdk.dir" value="${env.ANDROID_HOME}">
+ <isset property="env.ANDROID_HOME" />
+ </condition>
+
+ <!-- The project.properties file is created and updated by the 'android'
+ tool, as well as ADT.
+
+ This contains project specific properties such as project target, and library
+ dependencies. Lower level build properties are stored in ant.properties
+ (or in .classpath for Eclipse projects).
+
+ This file is an integral part of the build system for your
+ application and should be checked into Version Control Systems. -->
+ <loadproperties srcFile="project.properties" />
+
+ <!-- quick check on sdk.dir -->
+ <fail
+ message="sdk.dir is missing. Make sure to generate local.properties using 'android update project' or to inject it through the ANDROID_HOME environment variable."
+ unless="sdk.dir"
+ />
+
+ <target name="-pre-build">
+ <exec executable="ndk-build" failonerror="true"/>
+ </target>
+
+ <target name="clean" depends="android_rules.clean">
+ <exec executable="ndk-build" failonerror="true">
+ <arg value="clean"/>
+ </exec>
+ <delete dir="${export.dir}" />
+ </target>
+
+ <!--
+ Import per project custom build rules if present at the root of the project.
+ This is the place to put custom intermediary targets such as:
+ -pre-build
+ -pre-compile
+ -post-compile (This is typically used for code obfuscation.
+ Compiled code location: ${out.classes.absolute.dir}
+ If this is not done in place, override ${out.dex.input.absolute.dir})
+ -post-package
+ -post-build
+ -pre-clean
+ -->
+ <import file="custom_rules.xml" optional="true" />
+
+ <!-- Import the actual build file.
+
+ To customize existing targets, there are two options:
+ - Customize only one target:
+ - copy/paste the target into this file, *before* the
+ <import> task.
+ - customize it to your needs.
+ - Customize the whole content of build.xml
+ - copy/paste the content of the rules files (minus the top node)
+ into this file, replacing the <import> task.
+ - customize to your needs.
+
+ ***********************
+ ****** IMPORTANT ******
+ ***********************
+ In all cases you must update the value of version-tag below to read 'custom' instead of an integer,
+ in order to avoid having your file be overridden by tools such as "android update project"
+ -->
+ <!-- version-tag: 1 -->
+ <import file="${sdk.dir}/tools/ant/build.xml" />
+
+ <target name="-post-build">
+ <delete dir="${export.dir}" />
+ <copy file="${out.library.jar.file}" tofile="${export.dir}/rastermill.jar" />
+ <copy todir="${export.dir}">
+ <fileset dir="${native.libs.absolute.dir}">
+ <include name="**/librastermill-native.so" />
+ </fileset>
+ </copy>
+ </target>
+
+</project>
diff --git a/framesequence/jni/Android.mk b/framesequence/jni/Android.mk
new file mode 100644
index 0000000..7cc0af6
--- /dev/null
+++ b/framesequence/jni/Android.mk
@@ -0,0 +1,41 @@
+#
+# 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.
+#
+
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+## Main library
+
+LOCAL_SHARED_LIBRARIES += liblog libjnigraphics
+LOCAL_STATIC_LIBRARIES += libgif
+
+LOCAL_C_INCLUDES := \
+ external/giflib
+
+LOCAL_MODULE := libframesequence
+LOCAL_SRC_FILES := \
+ BitmapDecoderJNI.cpp \
+ FrameSequence.cpp \
+ FrameSequenceJNI.cpp \
+ FrameSequence_gif.cpp \
+ JNIHelpers.cpp \
+ Registry.cpp \
+ Stream.cpp
+
+LOCAL_CFLAGS += -Wall -Wno-unused-parameter -Wno-unused-variable -Wno-overloaded-virtual
+LOCAL_CFLAGS += -fvisibility=hidden
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/framesequence/jni/Application.mk b/framesequence/jni/Application.mk
new file mode 100644
index 0000000..eb51358
--- /dev/null
+++ b/framesequence/jni/Application.mk
@@ -0,0 +1,6 @@
+APP_PLATFORM := android-8
+APP_ABI := armeabi-v7a
+LOCAL_ARM_NEON=true
+ARCH_ARM_HAVE_NEON=true
+# TODO: Have libjpeg do this
+APP_CFLAGS := -D__ARM_HAVE_NEON=1
diff --git a/framesequence/jni/BitmapDecoderJNI.cpp b/framesequence/jni/BitmapDecoderJNI.cpp
new file mode 100644
index 0000000..5fe04b4
--- /dev/null
+++ b/framesequence/jni/BitmapDecoderJNI.cpp
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#define LOG_TAG "FancyDecoding"
+
+#include <android/bitmap.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "FrameSequenceJNI.h"
+#include "JNIHelpers.h"
+#include "Stream.h"
+#include "utils/log.h"
+
+void throwException(JNIEnv* env, const char* error) {
+ jclass clazz = env->FindClass("java/lang/RuntimeException");
+ env->ThrowNew(clazz, error);
+}
+
+jint JNI_OnLoad(JavaVM* vm, void* reserved) {
+ JNIEnv* env;
+ if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
+ return -1;
+ }
+ if (FrameSequence_OnLoad(env)) {
+ ALOGE("Failed to load FrameSequence");
+ return -1;
+ }
+ if (JavaStream_OnLoad(env)) {
+ ALOGE("Failed to load JavaStream");
+ return -1;
+ }
+
+ return JNI_VERSION_1_6;
+}
diff --git a/framesequence/jni/Color.h b/framesequence/jni/Color.h
new file mode 100644
index 0000000..e49c64a
--- /dev/null
+++ b/framesequence/jni/Color.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef RASTERMILL_COLOR_H
+#define RASTERMILL_COLOR_H
+
+#include <sys/types.h>
+
+typedef uint32_t Color8888;
+
+static const Color8888 COLOR_8888_ALPHA_MASK = 0xff000000; // TODO: handle endianness
+static const Color8888 TRANSPARENT = 0x0;
+
+// TODO: handle endianness
+#define ARGB_TO_COLOR8888(a, r, g, b) \
+ ((a) << 24 | (b) << 16 | (g) << 8 | (r))
+
+#endif // RASTERMILL_COLOR_H
diff --git a/framesequence/jni/FrameSequence.cpp b/framesequence/jni/FrameSequence.cpp
new file mode 100644
index 0000000..5c34425
--- /dev/null
+++ b/framesequence/jni/FrameSequence.cpp
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2013 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 "FrameSequence.h"
+
+#include "Registry.h"
+
+FrameSequence* FrameSequence::create(Stream* stream) {
+ const RegistryEntry* entry = Registry::Find(stream);
+ return entry ? entry->createFrameSequence(stream) : 0;
+}
diff --git a/framesequence/jni/FrameSequence.h b/framesequence/jni/FrameSequence.h
new file mode 100644
index 0000000..781b7c6
--- /dev/null
+++ b/framesequence/jni/FrameSequence.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef RASTERMILL_FRAME_SEQUENCE_H
+#define RASTERMILL_FRAME_SEQUENCE_H
+
+#include "Stream.h"
+#include "Color.h"
+
+class FrameSequenceState {
+public:
+ /**
+ * Produces a frame of animation in the output buffer, drawing (at minimum) the delta since
+ * previousFrameNr (the current contents of the buffer), or from scratch if previousFrameNr is
+ * negative
+ *
+ * Returns frame's delay time in milliseconds.
+ */
+ virtual long drawFrame(int frameNr,
+ Color8888* outputPtr, int outputPixelStride, int previousFrameNr) = 0;
+ virtual ~FrameSequenceState() {}
+};
+
+class FrameSequence {
+public:
+ /**
+ * Creates a FrameSequence using data from the data stream
+ *
+ * Type determined by header information in the stream
+ */
+ static FrameSequence* create(Stream* stream);
+
+ virtual ~FrameSequence() {}
+ virtual int getWidth() const = 0;
+ virtual int getHeight() const = 0;
+ virtual int getFrameCount() const = 0;
+ virtual bool isOpaque() const = 0;
+
+ virtual FrameSequenceState* createState() const = 0;
+};
+
+#endif //RASTERMILL_FRAME_SEQUENCE_H
diff --git a/framesequence/jni/FrameSequenceJNI.cpp b/framesequence/jni/FrameSequenceJNI.cpp
new file mode 100644
index 0000000..90d0465
--- /dev/null
+++ b/framesequence/jni/FrameSequenceJNI.cpp
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2013 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 <android/bitmap.h>
+#include "JNIHelpers.h"
+#include "utils/log.h"
+#include "FrameSequence.h"
+
+#include "FrameSequenceJNI.h"
+
+#define JNI_PACKAGE "android/support/rastermill"
+
+static struct {
+ jclass clazz;
+ jmethodID ctor;
+} gFrameSequenceClassInfo;
+
+////////////////////////////////////////////////////////////////////////////////
+// Frame sequence
+////////////////////////////////////////////////////////////////////////////////
+
+static jobject createJavaFrameSequence(JNIEnv* env, FrameSequence* frameSequence) {
+ if (!frameSequence) {
+ return NULL;
+ }
+ return env->NewObject(gFrameSequenceClassInfo.clazz, gFrameSequenceClassInfo.ctor,
+ reinterpret_cast<jint>(frameSequence),
+ frameSequence->getWidth(),
+ frameSequence->getHeight(),
+ frameSequence->getFrameCount(),
+ frameSequence->isOpaque());
+}
+
+static jobject nativeDecodeByteArray(JNIEnv* env, jobject clazz,
+ jbyteArray byteArray, jint offset, jint length) {
+ jbyte* bytes = reinterpret_cast<jbyte*>(env->GetPrimitiveArrayCritical(byteArray, NULL));
+ if (bytes == NULL) {
+ jniThrowException(env, ILLEGAL_STATE_EXEPTION,
+ "couldn't read array bytes");
+ return NULL;
+ }
+ bytes += offset;
+ MemoryStream stream(bytes, length);
+ FrameSequence* frameSequence = FrameSequence::create(&stream);
+ env->ReleasePrimitiveArrayCritical(byteArray, bytes, 0);
+ return createJavaFrameSequence(env, frameSequence);
+}
+
+static jobject nativeDecodeStream(JNIEnv* env, jobject clazz,
+ jobject istream, jbyteArray byteArray) {
+ JavaInputStream stream(env, istream, byteArray);
+ FrameSequence* frameSequence = FrameSequence::create(&stream);
+ return createJavaFrameSequence(env, frameSequence);
+}
+
+static void nativeDestroyFrameSequence(JNIEnv* env, jobject clazz,
+ jint frameSequenceInt) {
+ FrameSequence* frameSequence = reinterpret_cast<FrameSequence*>(frameSequenceInt);
+ delete frameSequence;
+}
+
+static jint nativeCreateState(JNIEnv* env, jobject clazz, jint frameSequenceInt) {
+ FrameSequence* frameSequence = reinterpret_cast<FrameSequence*>(frameSequenceInt);
+ FrameSequenceState* state = frameSequence->createState();
+ return reinterpret_cast<jint>(state);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Frame sequence state
+////////////////////////////////////////////////////////////////////////////////
+
+static void nativeDestroyState(
+ JNIEnv* env, jobject clazz, jint frameSequenceStateInt) {
+ FrameSequenceState* frameSequenceState =
+ reinterpret_cast<FrameSequenceState*>(frameSequenceStateInt);
+ delete frameSequenceState;
+}
+
+static jlong JNICALL nativeGetFrame(
+ JNIEnv* env, jobject clazz, jint frameSequenceStateInt, jint frameNr,
+ jobject bitmap, jint previousFrameNr) {
+ FrameSequenceState* frameSequenceState =
+ reinterpret_cast<FrameSequenceState*>(frameSequenceStateInt);
+ int ret;
+ AndroidBitmapInfo info;
+ void* pixels;
+ if ((ret = AndroidBitmap_getInfo(env, bitmap, &info)) < 0) {
+
+ jniThrowException(env, ILLEGAL_STATE_EXEPTION,
+ "Couldn't get info from Bitmap ");
+ return 0;
+ }
+
+ if ((ret = AndroidBitmap_lockPixels(env, bitmap, &pixels)) < 0) {
+ jniThrowException(env, ILLEGAL_STATE_EXEPTION,
+ "Bitmap pixels couldn't be locked");
+ return 0;
+ }
+
+ int pixelStride = info.stride >> 2;
+ jlong delayMs = frameSequenceState->drawFrame(frameNr,
+ (Color8888*) pixels, pixelStride, previousFrameNr);
+
+ AndroidBitmap_unlockPixels(env, bitmap);
+ return delayMs;
+}
+
+static JNINativeMethod gMethods[] = {
+ { "nativeDecodeByteArray",
+ "([BII)L" JNI_PACKAGE "/FrameSequence;",
+ (void*) nativeDecodeByteArray
+ },
+ { "nativeDecodeStream",
+ "(Ljava/io/InputStream;[B)L" JNI_PACKAGE "/FrameSequence;",
+ (void*) nativeDecodeStream
+ },
+ { "nativeDestroyFrameSequence",
+ "(I)V",
+ (void*) nativeDestroyFrameSequence
+ },
+ { "nativeCreateState",
+ "(I)I",
+ (void*) nativeCreateState
+ },
+ { "nativeGetFrame",
+ "(IILandroid/graphics/Bitmap;I)J",
+ (void*) nativeGetFrame
+ },
+ { "nativeDestroyFrameSequence",
+ "(I)V",
+ (void*) nativeDestroyState
+ },
+};
+
+jint FrameSequence_OnLoad(JNIEnv* env) {
+ // Get jclass with env->FindClass.
+ // Register methods with env->RegisterNatives.
+ gFrameSequenceClassInfo.clazz = env->FindClass(JNI_PACKAGE "/FrameSequence");
+ if (!gFrameSequenceClassInfo.clazz) {
+ ALOGW("Failed to find " JNI_PACKAGE "/FrameSequence");
+ return -1;
+ }
+ gFrameSequenceClassInfo.clazz = (jclass)env->NewGlobalRef(gFrameSequenceClassInfo.clazz);
+
+ gFrameSequenceClassInfo.ctor = env->GetMethodID(gFrameSequenceClassInfo.clazz, "<init>", "(IIIIZ)V");
+ if (!gFrameSequenceClassInfo.ctor) {
+ ALOGW("Failed to find constructor for FrameSequence - was it stripped?");
+ return -1;
+ }
+
+ return env->RegisterNatives(gFrameSequenceClassInfo.clazz, gMethods, METHOD_COUNT(gMethods));
+}
diff --git a/framesequence/jni/FrameSequenceJNI.h b/framesequence/jni/FrameSequenceJNI.h
new file mode 100644
index 0000000..a52df8a
--- /dev/null
+++ b/framesequence/jni/FrameSequenceJNI.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef RASTERMILL_FRAMESEQUENCE_JNI
+#define RASTERMILL_FRAMESEQUENCE_JNI
+
+#include <jni.h>
+
+jint FrameSequence_OnLoad(JNIEnv* env);
+
+#endif // RASTERMILL_FRAMESEQUENCE_JNI
diff --git a/framesequence/jni/FrameSequence_gif.cpp b/framesequence/jni/FrameSequence_gif.cpp
new file mode 100644
index 0000000..e9f3ace
--- /dev/null
+++ b/framesequence/jni/FrameSequence_gif.cpp
@@ -0,0 +1,345 @@
+/*
+ * Copyright (C) 2013 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 <string.h>
+#include "JNIHelpers.h"
+#include "utils/log.h"
+#include "utils/math.h"
+
+#include "FrameSequence_gif.h"
+
+#define GIF_DEBUG 0
+
+// These constants are chosen to imitate common browser behavior
+// Note that 0 delay is undefined behavior in the gif standard
+static const long MIN_DELAY_MS = 20;
+static const long DEFAULT_DELAY_MS = 100;
+
+static int streamReader(GifFileType* fileType, GifByteType* out, int size) {
+ Stream* stream = (Stream*) fileType->UserData;
+ return (int) stream->read(out, size);
+}
+
+static Color8888 gifColorToColor8888(const GifColorType& color) {
+ return ARGB_TO_COLOR8888(0xff, color.Red, color.Green, color.Blue);
+}
+
+static long getDelayMs(GraphicsControlBlock& gcb) {
+ long delayMs = gcb.DelayTime * 10;
+ if (delayMs < MIN_DELAY_MS) {
+ return DEFAULT_DELAY_MS;
+ }
+ return delayMs;
+}
+
+static bool willBeCleared(const GraphicsControlBlock& gcb) {
+ return gcb.DisposalMode == DISPOSE_BACKGROUND || gcb.DisposalMode == DISPOSE_PREVIOUS;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Frame sequence
+////////////////////////////////////////////////////////////////////////////////
+
+FrameSequence_gif::FrameSequence_gif(Stream* stream) :
+ mBgColor(TRANSPARENT), mPreservedFrames(NULL), mRestoringFrames(NULL) {
+ mGif = DGifOpen(stream, streamReader, NULL);
+ if (!mGif) {
+ ALOGW("Gif load failed");
+ return;
+ }
+
+ if (DGifSlurp(mGif) != GIF_OK) {
+ ALOGW("Gif slurp failed");
+ DGifCloseFile(mGif);
+ mGif = NULL;
+ return;
+ }
+
+ long durationMs = 0;
+ int lastUnclearedFrame = -1;
+ mPreservedFrames = new bool[mGif->ImageCount];
+ mRestoringFrames = new int[mGif->ImageCount];
+
+ GraphicsControlBlock gcb;
+ for (int i = 0; i < mGif->ImageCount; i++) {
+ const SavedImage& image = mGif->SavedImages[i];
+ DGifSavedExtensionToGCB(mGif, i, &gcb);
+
+ // timing
+ durationMs += getDelayMs(gcb);
+
+ // preserve logic
+ mPreservedFrames[i] = false;
+ mRestoringFrames[i] = -1;
+ if (gcb.DisposalMode == DISPOSE_PREVIOUS && lastUnclearedFrame >= 0) {
+ mPreservedFrames[lastUnclearedFrame] = true;
+ mRestoringFrames[i] = lastUnclearedFrame;
+ }
+ if (!willBeCleared(gcb)) {
+ lastUnclearedFrame = i;
+ }
+ }
+
+#if GIF_DEBUG
+ ALOGD("FrameSequence_gif created with size %d %d, frames %d dur %ld",
+ mGif->SWidth, mGif->SHeight, mGif->ImageCount, durationMs);
+ for (int i = 0; i < mGif->ImageCount; i++) {
+ DGifSavedExtensionToGCB(mGif, i, &gcb);
+ ALOGD(" Frame %d - must preserve %d, restore point %d, trans color %d",
+ i, mPreservedFrames[i], mRestoringFrames[i], gcb.TransparentColor);
+ }
+#endif
+
+ if (mGif->SColorMap) {
+ // calculate bg color
+ GraphicsControlBlock gcb;
+ DGifSavedExtensionToGCB(mGif, 0, &gcb);
+ if (gcb.TransparentColor == NO_TRANSPARENT_COLOR) {
+ mBgColor = gifColorToColor8888(mGif->SColorMap->Colors[mGif->SBackGroundColor]);
+ }
+ }
+}
+
+FrameSequence_gif::~FrameSequence_gif() {
+ if (mGif) {
+ DGifCloseFile(mGif);
+ }
+ delete[] mPreservedFrames;
+ delete[] mRestoringFrames;
+}
+
+FrameSequenceState* FrameSequence_gif::createState() const {
+ return new FrameSequenceState_gif(*this);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// draw helpers
+////////////////////////////////////////////////////////////////////////////////
+
+// return true if area of 'target' is completely covers area of 'covered'
+static bool checkIfCover(const GifImageDesc& target, const GifImageDesc& covered) {
+ return target.Left <= covered.Left
+ && covered.Left + covered.Width <= target.Left + target.Width
+ && target.Top <= covered.Top
+ && covered.Top + covered.Height <= target.Top + target.Height;
+}
+
+static void copyLine(Color8888* dst, const unsigned char* src, const ColorMapObject* cmap,
+ int transparent, int width) {
+ for (; width > 0; width--, src++, dst++) {
+ if (*src != transparent) {
+ *dst = gifColorToColor8888(cmap->Colors[*src]);
+ }
+ }
+}
+
+static void setLineColor(Color8888* dst, Color8888 color, int width) {
+ for (; width > 0; width--, dst++) {
+ *dst = color;
+ }
+}
+
+static void getCopySize(const GifImageDesc& imageDesc, int maxWidth, int maxHeight,
+ GifWord& copyWidth, GifWord& copyHeight) {
+ copyWidth = imageDesc.Width;
+ if (imageDesc.Left + copyWidth > maxWidth) {
+ copyWidth = maxWidth - imageDesc.Left;
+ }
+ copyHeight = imageDesc.Height;
+ if (imageDesc.Top + copyHeight > maxHeight) {
+ copyHeight = maxHeight - imageDesc.Top;
+ }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Frame sequence state
+////////////////////////////////////////////////////////////////////////////////
+
+FrameSequenceState_gif::FrameSequenceState_gif(const FrameSequence_gif& frameSequence) :
+ mFrameSequence(frameSequence), mPreserveBuffer(NULL), mPreserveBufferFrame(-1) {
+}
+
+FrameSequenceState_gif::~FrameSequenceState_gif() {
+ delete[] mPreserveBuffer;
+}
+
+void FrameSequenceState_gif::savePreserveBuffer(Color8888* outputPtr, int outputPixelStride, int frameNr) {
+ if (frameNr == mPreserveBufferFrame) return;
+
+ mPreserveBufferFrame = frameNr;
+ const int width = mFrameSequence.getWidth();
+ const int height = mFrameSequence.getHeight();
+ if (!mPreserveBuffer) {
+ mPreserveBuffer = new Color8888[width * height];
+ }
+ for (int y = 0; y < height; y++) {
+ memcpy(mPreserveBuffer + width * y,
+ outputPtr + outputPixelStride * y,
+ width * 4);
+ }
+}
+
+void FrameSequenceState_gif::restorePreserveBuffer(Color8888* outputPtr, int outputPixelStride) {
+ const int width = mFrameSequence.getWidth();
+ const int height = mFrameSequence.getHeight();
+ if (!mPreserveBuffer) {
+ ALOGD("preserve buffer not allocated! ah!");
+ return;
+ }
+ for (int y = 0; y < height; y++) {
+ memcpy(outputPtr + outputPixelStride * y,
+ mPreserveBuffer + width * y,
+ width * 4);
+ }
+}
+
+long FrameSequenceState_gif::drawFrame(int frameNr,
+ Color8888* outputPtr, int outputPixelStride, int previousFrameNr) {
+
+ GifFileType* gif = mFrameSequence.getGif();
+ if (!gif) {
+ ALOGD("Cannot drawFrame, mGif is NULL");
+ return -1;
+ }
+
+#if GIF_DEBUG
+ ALOGD(" drawFrame on %p nr %d on addr %p, previous frame nr %d",
+ this, frameNr, outputPtr, previousFrameNr);
+#endif
+
+ const int height = mFrameSequence.getHeight();
+ const int width = mFrameSequence.getWidth();
+
+ GraphicsControlBlock gcb;
+
+ int start = max(previousFrameNr + 1, 0);
+
+ for (int i = max(start - 1, 0); i < frameNr; i++) {
+ int neededPreservedFrame = mFrameSequence.getRestoringFrame(i);
+ if (neededPreservedFrame >= 0 && (mPreserveBufferFrame != neededPreservedFrame)) {
+#if GIF_DEBUG
+ ALOGD("frame %d needs frame %d preserved, but %d is currently, so drawing from scratch",
+ i, neededPreservedFrame, mPreserveBufferFrame);
+#endif
+ start = 0;
+ }
+ }
+
+ for (int i = start; i <= frameNr; i++) {
+ DGifSavedExtensionToGCB(gif, i, &gcb);
+ const SavedImage& frame = gif->SavedImages[i];
+
+#if GIF_DEBUG
+ bool frameOpaque = gcb.TransparentColor == NO_TRANSPARENT_COLOR;
+ ALOGD("producing frame %d, drawing frame %d (opaque %d, disp %d, del %d)",
+ frameNr, i, frameOpaque, gcb.DisposalMode, gcb.DelayTime);
+#endif
+ if (i == 0) {
+ //clear bitmap
+ Color8888 bgColor = mFrameSequence.getBackgroundColor();
+ for (int y = 0; y < height; y++) {
+ for (int x = 0; x < width; x++) {
+ outputPtr[y * outputPixelStride + x] = bgColor;
+ }
+ }
+ } else {
+ GraphicsControlBlock prevGcb;
+ DGifSavedExtensionToGCB(gif, i - 1, &prevGcb);
+ const SavedImage& prevFrame = gif->SavedImages[i - 1];
+ bool prevFrameDisposed = willBeCleared(prevGcb);
+
+ bool newFrameOpaque = gcb.TransparentColor == NO_TRANSPARENT_COLOR;
+ bool prevFrameCompletelyCovered = newFrameOpaque
+ && checkIfCover(frame.ImageDesc, prevFrame.ImageDesc);
+
+ if (prevFrameDisposed && !prevFrameCompletelyCovered) {
+ switch (prevGcb.DisposalMode) {
+ case DISPOSE_BACKGROUND: {
+ Color8888* dst = outputPtr + prevFrame.ImageDesc.Left +
+ prevFrame.ImageDesc.Top * outputPixelStride;
+
+ GifWord copyWidth, copyHeight;
+ getCopySize(prevFrame.ImageDesc, width, height, copyWidth, copyHeight);
+ for (; copyHeight > 0; copyHeight--) {
+ setLineColor(dst, TRANSPARENT, copyWidth);
+ dst += outputPixelStride;
+ }
+ } break;
+ case DISPOSE_PREVIOUS: {
+ restorePreserveBuffer(outputPtr, outputPixelStride);
+ } break;
+ }
+ }
+
+ if (mFrameSequence.getPreservedFrame(i - 1)) {
+ // currently drawn frame will be restored by a following DISPOSE_PREVIOUS draw, so
+ // we preserve it
+ savePreserveBuffer(outputPtr, outputPixelStride, i - 1);
+ }
+ }
+
+ bool willBeCleared = gcb.DisposalMode == DISPOSE_BACKGROUND
+ || gcb.DisposalMode == DISPOSE_PREVIOUS;
+ if (i == frameNr || !willBeCleared) {
+ const ColorMapObject* cmap = gif->SColorMap;
+ if (frame.ImageDesc.ColorMap) {
+ cmap = frame.ImageDesc.ColorMap;
+ }
+
+ if (cmap == NULL || cmap->ColorCount != (1 << cmap->BitsPerPixel)) {
+ ALOGW("Warning: potentially corrupt color map");
+ }
+
+ const unsigned char* src = (unsigned char*)frame.RasterBits;
+ Color8888* dst = outputPtr + frame.ImageDesc.Left +
+ frame.ImageDesc.Top * outputPixelStride;
+ GifWord copyWidth, copyHeight;
+ getCopySize(frame.ImageDesc, width, height, copyWidth, copyHeight);
+ for (; copyHeight > 0; copyHeight--) {
+ copyLine(dst, src, cmap, gcb.TransparentColor, copyWidth);
+ src += frame.ImageDesc.Width;
+ dst += outputPixelStride;
+ }
+ }
+ }
+
+ return getDelayMs(gcb);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Registry
+////////////////////////////////////////////////////////////////////////////////
+
+#include "Registry.h"
+
+static bool isGif(void* header, int header_size) {
+ return !memcmp(GIF_STAMP, header, GIF_STAMP_LEN)
+ || !memcmp(GIF87_STAMP, header, GIF_STAMP_LEN)
+ || !memcmp(GIF89_STAMP, header, GIF_STAMP_LEN);
+}
+
+static FrameSequence* createFramesequence(Stream* stream) {
+ return new FrameSequence_gif(stream);
+}
+
+static RegistryEntry gEntry = {
+ GIF_STAMP_LEN,
+ isGif,
+ createFramesequence,
+ NULL,
+};
+static Registry gRegister(gEntry);
+
diff --git a/framesequence/jni/FrameSequence_gif.h b/framesequence/jni/FrameSequence_gif.h
new file mode 100644
index 0000000..fbc4959
--- /dev/null
+++ b/framesequence/jni/FrameSequence_gif.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef RASTERMILL_FRAMESQUENCE_GIF_H
+#define RASTERMILL_FRAMESQUENCE_GIF_H
+
+#include "config.h"
+#include "gif_lib.h"
+
+#include "Stream.h"
+#include "Color.h"
+#include "FrameSequence.h"
+
+class FrameSequence_gif : public FrameSequence {
+public:
+ FrameSequence_gif(Stream* stream);
+ virtual ~FrameSequence_gif();
+
+ virtual int getWidth() const {
+ return mGif ? mGif->SWidth : 0;
+ }
+
+ virtual int getHeight() const {
+ return mGif ? mGif->SHeight : 0;
+ }
+
+ virtual int getFrameCount() const {
+ return mGif ? mGif->ImageCount : 0;
+ }
+
+ virtual bool isOpaque() const {
+ return (mBgColor & COLOR_8888_ALPHA_MASK) == COLOR_8888_ALPHA_MASK;
+ }
+
+ virtual FrameSequenceState* createState() const;
+
+ GifFileType* getGif() const { return mGif; }
+ Color8888 getBackgroundColor() const { return mBgColor; }
+ bool getPreservedFrame(int frameIndex) const { return mPreservedFrames[frameIndex]; }
+ int getRestoringFrame(int frameIndex) const { return mRestoringFrames[frameIndex]; }
+
+private:
+ GifFileType* mGif;
+ Color8888 mBgColor;
+
+ // array of bool per frame - if true, frame data is used by a later DISPOSE_PREVIOUS frame
+ bool* mPreservedFrames;
+
+ // array of ints per frame - if >= 0, points to the index of the preserve that frame needs
+ int* mRestoringFrames;
+};
+
+class FrameSequenceState_gif : public FrameSequenceState {
+public:
+ FrameSequenceState_gif(const FrameSequence_gif& frameSequence);
+ virtual ~FrameSequenceState_gif();
+
+ // returns frame's delay time in ms
+ virtual long drawFrame(int frameNr,
+ Color8888* outputPtr, int outputPixelStride, int previousFrameNr);
+
+private:
+ void savePreserveBuffer(Color8888* outputPtr, int outputPixelStride, int frameNr);
+ void restorePreserveBuffer(Color8888* outputPtr, int outputPixelStride);
+
+ const FrameSequence_gif& mFrameSequence;
+ Color8888* mPreserveBuffer;
+ int mPreserveBufferFrame;
+};
+
+#endif //RASTERMILL_FRAMESQUENCE_GIF_H
diff --git a/framesequence/jni/JNIHelpers.cpp b/framesequence/jni/JNIHelpers.cpp
new file mode 100644
index 0000000..dd0c818
--- /dev/null
+++ b/framesequence/jni/JNIHelpers.cpp
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2013 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 "JNIHelpers.h"
+#include "utils/log.h"
+
+void jniThrowException(JNIEnv* env, const char* className, const char* msg) {
+ jclass clazz = env->FindClass(className);
+ if (!clazz) {
+ ALOGE("Unable to find exception class %s", className);
+ /* ClassNotFoundException now pending */
+ return;
+ }
+
+ if (env->ThrowNew(clazz, msg) != JNI_OK) {
+ ALOGE("Failed throwing '%s' '%s'", className, msg);
+ /* an exception, most likely OOM, will now be pending */
+ }
+ env->DeleteLocalRef(clazz);
+}
diff --git a/framesequence/jni/JNIHelpers.h b/framesequence/jni/JNIHelpers.h
new file mode 100644
index 0000000..bb850d2
--- /dev/null
+++ b/framesequence/jni/JNIHelpers.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef RASTERMILL_JNIHELPERS_H
+#define RASTERMILL_JNIHELPERS_H
+
+#include <jni.h>
+
+#define METHOD_COUNT(methodArray) (sizeof(methodArray) / sizeof(methodArray[0]))
+
+#define ILLEGAL_STATE_EXEPTION "java/lang/IllegalStateException"
+
+void jniThrowException(JNIEnv* env, const char* className, const char* msg);
+
+
+#endif //RASTERMILL_JNIHELPERS_H
diff --git a/framesequence/jni/Registry.cpp b/framesequence/jni/Registry.cpp
new file mode 100644
index 0000000..125ac66
--- /dev/null
+++ b/framesequence/jni/Registry.cpp
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2013 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 "Registry.h"
+
+#include "Stream.h"
+
+static Registry* gHead = 0;
+static int gHeaderBytesRequired = 0;
+
+Registry::Registry(const RegistryEntry& entry) {
+ mImpl = entry;
+
+ mNext = gHead;
+ gHead = this;
+
+ if (gHeaderBytesRequired < entry.requiredHeaderBytes) {
+ gHeaderBytesRequired = entry.requiredHeaderBytes;
+ }
+}
+
+const RegistryEntry* Registry::Find(Stream* stream) {
+ Registry* registry = gHead;
+ int headerSize = gHeaderBytesRequired;
+ char header[headerSize];
+ headerSize = stream->peek(header, headerSize);
+ while (registry) {
+ if (headerSize >= registry->mImpl.requiredHeaderBytes
+ && registry->mImpl.checkHeader(header, headerSize)) {
+ return &(registry->mImpl);
+ }
+ registry = registry->mNext;
+ }
+ return 0;
+}
diff --git a/framesequence/jni/Registry.h b/framesequence/jni/Registry.h
new file mode 100644
index 0000000..571c611
--- /dev/null
+++ b/framesequence/jni/Registry.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef RASTERMILL_REGISTRY_H
+#define RASTERMILL_REGISTRY_H
+
+class FrameSequence;
+class Decoder;
+class Stream;
+
+struct RegistryEntry {
+ int requiredHeaderBytes;
+ bool (*checkHeader)(void* header, int header_size);
+ FrameSequence* (*createFrameSequence)(Stream* stream);
+ Decoder* (*createDecoder)(Stream* stream);
+};
+
+/**
+ * Template class for registering subclasses that can produce instances of themselves given a
+ * DataStream pointer.
+ *
+ * The super class / root constructable type only needs to define a single static construction
+ * meathod that creates an instance by iterating through all factory methods.
+ */
+class Registry {
+public:
+ Registry(const RegistryEntry& entry);
+
+ static const RegistryEntry* Find(Stream* stream);
+
+private:
+ RegistryEntry mImpl;
+ Registry* mNext;
+};
+
+#endif // RASTERMILL_REGISTRY_H
diff --git a/framesequence/jni/Stream.cpp b/framesequence/jni/Stream.cpp
new file mode 100644
index 0000000..b2e0c39
--- /dev/null
+++ b/framesequence/jni/Stream.cpp
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#define LOG_TAG "Stream"
+
+#include "Stream.h"
+
+#include <string.h>
+
+#include "JNIHelpers.h"
+#include "utils/log.h"
+#include "utils/math.h"
+
+static struct {
+ jmethodID read;
+ jmethodID reset;
+} gInputStreamClassInfo;
+
+Stream::Stream()
+ : mPeekBuffer(0)
+ , mPeekSize(0)
+ , mPeekOffset(0) {
+}
+
+Stream::~Stream() {
+ delete mPeekBuffer;
+}
+
+size_t Stream::peek(void* buffer, size_t size) {
+ size_t peek_remaining = mPeekSize - mPeekOffset;
+ if (size > peek_remaining) {
+ char* old_peek = mPeekBuffer;
+ mPeekBuffer = new char[size];
+ if (old_peek) {
+ memcpy(mPeekBuffer, old_peek + mPeekOffset, peek_remaining);
+ delete old_peek;
+ }
+ size_t read = doRead(mPeekBuffer + mPeekOffset, size - peek_remaining);
+ mPeekOffset = 0;
+ mPeekSize = peek_remaining + read;
+ }
+ size = min(size, mPeekSize - mPeekOffset);
+ memcpy(buffer, mPeekBuffer + mPeekOffset, size);
+ return size;
+}
+
+size_t Stream::read(void* buffer, size_t size) {
+ size_t bytes_read = 0;
+ size_t peek_remaining = mPeekSize - mPeekOffset;
+ if (peek_remaining) {
+ bytes_read = min(size, peek_remaining);
+ memcpy(buffer, mPeekBuffer + mPeekOffset, bytes_read);
+ mPeekOffset += bytes_read;
+ if (mPeekOffset == mPeekSize) {
+ delete mPeekBuffer;
+ mPeekBuffer = 0;
+ mPeekOffset = 0;
+ mPeekSize = 0;
+ }
+ size -= bytes_read;
+ buffer = ((char*) buffer) + bytes_read;
+ }
+ if (size) {
+ bytes_read += doRead(buffer, size);
+ }
+ return bytes_read;
+}
+
+size_t MemoryStream::doRead(void* buffer, size_t size) {
+ size = min(size, mRemaining);
+ memcpy(buffer, mBuffer, size);
+ mBuffer += size;
+ mRemaining -= size;
+ return size;
+}
+
+size_t FileStream::doRead(void* buffer, size_t size) {
+ return fread(buffer, 1, size, mFd);
+}
+
+size_t JavaInputStream::doRead(void* dstBuffer, size_t size) {
+ size_t totalBytesRead = 0;
+
+ do {
+ size_t requested = min(size, mByteArrayLength);
+
+ jint bytesRead = mEnv->CallIntMethod(mInputStream,
+ gInputStreamClassInfo.read, mByteArray, 0, requested);
+ if (mEnv->ExceptionCheck() || bytesRead < 0) {
+ return 0;
+ }
+
+ mEnv->GetByteArrayRegion(mByteArray, 0, bytesRead, (jbyte*)dstBuffer);
+ dstBuffer = (char*)dstBuffer + bytesRead;
+ totalBytesRead += bytesRead;
+ size -= bytesRead;
+ } while (size > 0);
+
+ return totalBytesRead;
+}
+
+jint JavaStream_OnLoad(JNIEnv* env) {
+ // Skip the verbose logging on error for these, as they won't be subject
+ // to obfuscators or similar and are thus unlikely to ever fail
+ jclass inputStreamClazz = env->FindClass("java/io/InputStream");
+ if (!inputStreamClazz) {
+ return -1;
+ }
+ gInputStreamClassInfo.read = env->GetMethodID(inputStreamClazz, "read", "([BII)I");
+ gInputStreamClassInfo.reset = env->GetMethodID(inputStreamClazz, "reset", "()V");
+ if (!gInputStreamClassInfo.read || !gInputStreamClassInfo.reset) {
+ return -1;
+ }
+ return 0;
+}
diff --git a/framesequence/jni/Stream.h b/framesequence/jni/Stream.h
new file mode 100644
index 0000000..f8f2427
--- /dev/null
+++ b/framesequence/jni/Stream.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef RASTERMILL_STREAM_H
+#define RASTERMILL_STREAM_H
+
+#include <jni.h>
+#include <stdio.h>
+#include <sys/types.h>
+
+class Stream {
+public:
+ Stream();
+ virtual ~Stream();
+
+ size_t peek(void* buffer, size_t size);
+ size_t read(void* buffer, size_t size);
+
+protected:
+ virtual size_t doRead(void* buffer, size_t size) = 0;
+
+private:
+ char* mPeekBuffer;
+ size_t mPeekSize;
+ size_t mPeekOffset;
+};
+
+class MemoryStream : public Stream {
+public:
+ MemoryStream(void* buffer, size_t size) :
+ mBuffer((char*)buffer),
+ mRemaining(size) {}
+
+protected:
+ virtual size_t doRead(void* buffer, size_t size);
+
+private:
+ char* mBuffer;
+ size_t mRemaining;
+};
+
+class FileStream : public Stream {
+public:
+ FileStream(FILE* fd) : mFd(fd) {}
+
+protected:
+ virtual size_t doRead(void* buffer, size_t size);
+
+private:
+ FILE* mFd;
+};
+
+class JavaInputStream : public Stream {
+public:
+ JavaInputStream(JNIEnv* env, jobject inputStream, jbyteArray byteArray) :
+ mEnv(env),
+ mInputStream(inputStream),
+ mByteArray(byteArray),
+ mByteArrayLength(env->GetArrayLength(byteArray)) {}
+
+protected:
+ virtual size_t doRead(void* buffer, size_t size);
+
+private:
+ JNIEnv* mEnv;
+ const jobject mInputStream;
+ const jbyteArray mByteArray;
+ const size_t mByteArrayLength;
+};
+
+jint JavaStream_OnLoad(JNIEnv* env);
+
+#endif //RASTERMILL_STREAM_H
diff --git a/framesequence/jni/utils/log.h b/framesequence/jni/utils/log.h
new file mode 100644
index 0000000..5e15f30
--- /dev/null
+++ b/framesequence/jni/utils/log.h
@@ -0,0 +1,274 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef LOG_H_
+#define LOG_H_
+
+#include <android/log.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ---------------------------------------------------------------------
+
+/*
+ * Normally we strip ALOGV (VERBOSE messages) from release builds.
+ * You can modify this (for example with "#define LOG_NDEBUG 0"
+ * at the top of your source file) to change that behavior.
+ */
+#ifndef LOG_NDEBUG
+#ifdef NDEBUG
+#define LOG_NDEBUG 1
+#else
+#define LOG_NDEBUG 0
+#endif
+#endif
+
+/*
+ * This is the local tag used for the following simplified
+ * logging macros. You can change this preprocessor definition
+ * before using the other macros to change the tag.
+ */
+#ifndef LOG_TAG
+#define LOG_TAG "RasterMill"
+#endif
+
+// ---------------------------------------------------------------------
+
+/*
+ * Simplified macro to send a verbose log message using the current LOG_TAG.
+ */
+#ifndef ALOGV
+#if LOG_NDEBUG
+#define ALOGV(...) ((void)0)
+#else
+#define ALOGV(...) ((void)ALOG(LOG_VERBOSE, LOG_TAG, __VA_ARGS__))
+#endif
+#endif
+
+#define CONDITION(cond) (__builtin_expect((cond)!=0, 0))
+
+#ifndef ALOGV_IF
+#if LOG_NDEBUG
+#define ALOGV_IF(cond, ...) ((void)0)
+#else
+#define ALOGV_IF(cond, ...) \
+ ( (CONDITION(cond)) \
+ ? ((void)ALOG(LOG_VERBOSE, LOG_TAG, __VA_ARGS__)) \
+ : (void)0 )
+#endif
+#endif
+
+/*
+ * Simplified macro to send a debug log message using the current LOG_TAG.
+ */
+#ifndef ALOGD
+#define ALOGD(...) ((void)ALOG(LOG_DEBUG, LOG_TAG, __VA_ARGS__))
+#endif
+
+#ifndef ALOGD_IF
+#define ALOGD_IF(cond, ...) \
+ ( (CONDITION(cond)) \
+ ? ((void)ALOG(LOG_DEBUG, LOG_TAG, __VA_ARGS__)) \
+ : (void)0 )
+#endif
+
+/*
+ * Simplified macro to send an info log message using the current LOG_TAG.
+ */
+#ifndef ALOGI
+#define ALOGI(...) ((void)ALOG(LOG_INFO, LOG_TAG, __VA_ARGS__))
+#endif
+
+#ifndef ALOGI_IF
+#define ALOGI_IF(cond, ...) \
+ ( (CONDITION(cond)) \
+ ? ((void)ALOG(LOG_INFO, LOG_TAG, __VA_ARGS__)) \
+ : (void)0 )
+#endif
+
+/*
+ * Simplified macro to send a warning log message using the current LOG_TAG.
+ */
+#ifndef ALOGW
+#define ALOGW(...) ((void)ALOG(LOG_WARN, LOG_TAG, __VA_ARGS__))
+#endif
+
+#ifndef ALOGW_IF
+#define ALOGW_IF(cond, ...) \
+ ( (CONDITION(cond)) \
+ ? ((void)ALOG(LOG_WARN, LOG_TAG, __VA_ARGS__)) \
+ : (void)0 )
+#endif
+
+/*
+ * Simplified macro to send an error log message using the current LOG_TAG.
+ */
+#ifndef ALOGE
+#define ALOGE(...) ((void)ALOG(LOG_ERROR, LOG_TAG, __VA_ARGS__))
+#endif
+
+#ifndef ALOGE_IF
+#define ALOGE_IF(cond, ...) \
+ ( (CONDITION(cond)) \
+ ? ((void)ALOG(LOG_ERROR, LOG_TAG, __VA_ARGS__)) \
+ : (void)0 )
+#endif
+
+// ---------------------------------------------------------------------
+
+/*
+ * Conditional based on whether the current LOG_TAG is enabled at
+ * verbose priority.
+ */
+#ifndef IF_ALOGV
+#if LOG_NDEBUG
+#define IF_ALOGV() if (false)
+#else
+#define IF_ALOGV() IF_ALOG(LOG_VERBOSE, LOG_TAG)
+#endif
+#endif
+
+/*
+ * Conditional based on whether the current LOG_TAG is enabled at
+ * debug priority.
+ */
+#ifndef IF_ALOGD
+#define IF_ALOGD() IF_ALOG(LOG_DEBUG, LOG_TAG)
+#endif
+
+/*
+ * Conditional based on whether the current LOG_TAG is enabled at
+ * info priority.
+ */
+#ifndef IF_ALOGI
+#define IF_ALOGI() IF_ALOG(LOG_INFO, LOG_TAG)
+#endif
+
+/*
+ * Conditional based on whether the current LOG_TAG is enabled at
+ * warn priority.
+ */
+#ifndef IF_ALOGW
+#define IF_ALOGW() IF_ALOG(LOG_WARN, LOG_TAG)
+#endif
+
+/*
+ * Conditional based on whether the current LOG_TAG is enabled at
+ * error priority.
+ */
+#ifndef IF_ALOGE
+#define IF_ALOGE() IF_ALOG(LOG_ERROR, LOG_TAG)
+#endif
+
+// ---------------------------------------------------------------------
+
+/*
+ * Log a fatal error. If the given condition fails, this stops program
+ * execution like a normal assertion, but also generating the given message.
+ * It is NOT stripped from release builds. Note that the condition test
+ * is -inverted- from the normal assert() semantics.
+ */
+#ifndef LOG_ALWAYS_FATAL_IF
+#define LOG_ALWAYS_FATAL_IF(cond, ...) \
+ ( (CONDITION(cond)) \
+ ? ((void)android_printAssert(#cond, LOG_TAG, ## __VA_ARGS__)) \
+ : (void)0 )
+#endif
+
+#ifndef LOG_ALWAYS_FATAL
+#define LOG_ALWAYS_FATAL(...) \
+ ( ((void)android_printAssert(NULL, LOG_TAG, ## __VA_ARGS__)) )
+#endif
+
+/*
+ * Versions of LOG_ALWAYS_FATAL_IF and LOG_ALWAYS_FATAL that
+ * are stripped out of release builds.
+ */
+#if LOG_NDEBUG
+
+#ifndef LOG_FATAL_IF
+#define LOG_FATAL_IF(cond, ...) ((void)0)
+#endif
+#ifndef LOG_FATAL
+#define LOG_FATAL(...) ((void)0)
+#endif
+
+#else
+
+#ifndef LOG_FATAL_IF
+#define LOG_FATAL_IF(cond, ...) LOG_ALWAYS_FATAL_IF(cond, ## __VA_ARGS__)
+#endif
+#ifndef LOG_FATAL
+#define LOG_FATAL(...) LOG_ALWAYS_FATAL(__VA_ARGS__)
+#endif
+
+#endif
+
+/*
+ * Assertion that generates a log message when the assertion fails.
+ * Stripped out of release builds. Uses the current LOG_TAG.
+ */
+#ifndef ALOG_ASSERT
+#define ALOG_ASSERT(cond, ...) LOG_FATAL_IF(!(cond), ## __VA_ARGS__)
+//#define ALOG_ASSERT(cond) LOG_FATAL_IF(!(cond), "Assertion failed: " #cond)
+#endif
+
+// ---------------------------------------------------------------------
+
+/*
+ * Basic log message macro.
+ *
+ * Example:
+ * ALOG(LOG_WARN, NULL, "Failed with error %d", errno);
+ *
+ * The second argument may be NULL or "" to indicate the "global" tag.
+ */
+#ifndef ALOG
+#define ALOG(priority, tag, ...) \
+ LOG_PRI(ANDROID_##priority, tag, __VA_ARGS__)
+#endif
+
+/*
+ * Log macro that allows you to specify a number for the priority.
+ */
+#ifndef LOG_PRI
+#define LOG_PRI(priority, tag, ...) \
+ __android_log_print(priority, tag, __VA_ARGS__)
+#endif
+
+/*
+ * Log macro that allows you to pass in a varargs ("args" is a va_list).
+ */
+#ifndef LOG_PRI_VA
+#define LOG_PRI_VA(priority, tag, fmt, args) \
+ __android_log_vprint(priority, NULL, tag, fmt, args)
+#endif
+
+/*
+ * Conditional given a desired logging priority and tag.
+ */
+#ifndef IF_ALOG
+#define IF_ALOG(priority, tag) \
+ if (__android_log_assert(ANDROID_##priority, tag))
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LOG_H_ */
diff --git a/framesequence/jni/utils/math.h b/framesequence/jni/utils/math.h
new file mode 100644
index 0000000..87f100b
--- /dev/null
+++ b/framesequence/jni/utils/math.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef MATH_H_
+#define MATH_H_
+
+#define max(a,b) \
+ ({ __typeof__ (a) _a = (a); \
+ __typeof__ (b) _b = (b); \
+ _a > _b ? _a : _b; })
+
+#define min(a,b) \
+ ({ __typeof__ (a) _a = (a); \
+ __typeof__ (b) _b = (b); \
+ _a < _b ? _a : _b; })
+
+#endif /* MATH_H_ */
diff --git a/framesequence/project.properties b/framesequence/project.properties
new file mode 100644
index 0000000..db721fd
--- /dev/null
+++ b/framesequence/project.properties
@@ -0,0 +1,15 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system edit
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+#
+# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
+#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
+
+# Project target.
+target=android-8
+android.library=true
diff --git a/framesequence/samples/RastermillSamples/Android.mk b/framesequence/samples/RastermillSamples/Android.mk
new file mode 100644
index 0000000..bb8920f
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/Android.mk
@@ -0,0 +1,40 @@
+# 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.
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_PACKAGE_NAME := FrameSequenceSample
+
+# java dependency
+LOCAL_STATIC_JAVA_LIBRARIES += android-common-framesequence
+
+# native dependency
+ifneq (,$(TARGET_BUILD_APPS))
+ LOCAL_JNI_SHARED_LIBRARIES := libframesequence
+else
+ LOCAL_REQUIRED_MODULES := libframesequence
+endif
+
+# proguard for framesequence library code
+LOCAL_PROGUARD_FLAG_FILES := proguard.flags
+
+LOCAL_SDK_VERSION := 19
+
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
+LOCAL_RESOURCE_DIR := $(addprefix $(LOCAL_PATH)/, res)
+LOCAL_AAPT_FLAGS := --auto-add-overlay
+LOCAL_AAPT_FLAGS += --extra-packages com.android.rastermill.samples
+
+include $(BUILD_PACKAGE)
diff --git a/framesequence/samples/RastermillSamples/AndroidManifest.xml b/framesequence/samples/RastermillSamples/AndroidManifest.xml
new file mode 100644
index 0000000..b554021
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/AndroidManifest.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="com.android.rastermill.samples"
+ android:versionCode="1"
+ android:versionName="1.0" >
+
+ <uses-sdk
+ android:minSdkVersion="15"
+ android:targetSdkVersion="18" />
+
+ <application
+ android:allowBackup="true"
+ android:icon="@drawable/ic_launcher"
+ android:label="@string/app_name" >
+ <activity
+ android:name=".SamplesList"
+ android:label="@string/app_name" >
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+ <category android:name="android.intent.category.LAUNCHER" />
+ </intent-filter>
+ </activity>
+ <activity android:name=".AnimatedGifTest" />
+ </application>
+
+</manifest>
diff --git a/framesequence/samples/RastermillSamples/build.xml b/framesequence/samples/RastermillSamples/build.xml
new file mode 100644
index 0000000..5e55b4e
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/build.xml
@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project name="RastermillSamples" default="help">
+
+ <!-- The local.properties file is created and updated by the 'android' tool.
+ It contains the path to the SDK. It should *NOT* be checked into
+ Version Control Systems. -->
+ <property file="local.properties" />
+
+ <!-- The ant.properties file can be created by you. It is only edited by the
+ 'android' tool to add properties to it.
+ This is the place to change some Ant specific build properties.
+ Here are some properties you may want to change/update:
+
+ source.dir
+ The name of the source directory. Default is 'src'.
+ out.dir
+ The name of the output directory. Default is 'bin'.
+
+ For other overridable properties, look at the beginning of the rules
+ files in the SDK, at tools/ant/build.xml
+
+ Properties related to the SDK location or the project target should
+ be updated using the 'android' tool with the 'update' action.
+
+ This file is an integral part of the build system for your
+ application and should be checked into Version Control Systems.
+
+ -->
+ <property file="ant.properties" />
+
+ <!-- if sdk.dir was not set from one of the property file, then
+ get it from the ANDROID_HOME env var.
+ This must be done before we load project.properties since
+ the proguard config can use sdk.dir -->
+ <property environment="env" />
+ <condition property="sdk.dir" value="${env.ANDROID_HOME}">
+ <isset property="env.ANDROID_HOME" />
+ </condition>
+
+ <!-- The project.properties file is created and updated by the 'android'
+ tool, as well as ADT.
+
+ This contains project specific properties such as project target, and library
+ dependencies. Lower level build properties are stored in ant.properties
+ (or in .classpath for Eclipse projects).
+
+ This file is an integral part of the build system for your
+ application and should be checked into Version Control Systems. -->
+ <loadproperties srcFile="project.properties" />
+
+ <!-- quick check on sdk.dir -->
+ <fail
+ message="sdk.dir is missing. Make sure to generate local.properties using 'android update project' or to inject it through the ANDROID_HOME environment variable."
+ unless="sdk.dir"
+ />
+
+ <target name="-pre-build">
+ <ant dir="../../" target="release" inheritAll="false" />
+ <copy todir="libs">
+ <fileset dir="../../exported_libs" />
+ </copy>
+ </target>
+
+ <!--
+ Import per project custom build rules if present at the root of the project.
+ This is the place to put custom intermediary targets such as:
+ -pre-build
+ -pre-compile
+ -post-compile (This is typically used for code obfuscation.
+ Compiled code location: ${out.classes.absolute.dir}
+ If this is not done in place, override ${out.dex.input.absolute.dir})
+ -post-package
+ -post-build
+ -pre-clean
+ -->
+ <import file="custom_rules.xml" optional="true" />
+
+ <!-- Import the actual build file.
+
+ To customize existing targets, there are two options:
+ - Customize only one target:
+ - copy/paste the target into this file, *before* the
+ <import> task.
+ - customize it to your needs.
+ - Customize the whole content of build.xml
+ - copy/paste the content of the rules files (minus the top node)
+ into this file, replacing the <import> task.
+ - customize to your needs.
+
+ ***********************
+ ****** IMPORTANT ******
+ ***********************
+ In all cases you must update the value of version-tag below to read 'custom' instead of an integer,
+ in order to avoid having your file be overridden by tools such as "android update project"
+ -->
+ <!-- version-tag: 1 -->
+ <import file="${sdk.dir}/tools/ant/build.xml" />
+
+</project>
diff --git a/framesequence/samples/RastermillSamples/proguard.flags b/framesequence/samples/RastermillSamples/proguard.flags
new file mode 100644
index 0000000..4acde2d
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/proguard.flags
@@ -0,0 +1,3 @@
+-keep class android.support.rastermill.** {
+ *;
+}
diff --git a/framesequence/samples/RastermillSamples/project.properties b/framesequence/samples/RastermillSamples/project.properties
new file mode 100644
index 0000000..ce39f2d
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/project.properties
@@ -0,0 +1,14 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system edit
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+#
+# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
+#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
+
+# Project target.
+target=android-18
diff --git a/framesequence/samples/RastermillSamples/res/drawable-hdpi/ic_launcher.png b/framesequence/samples/RastermillSamples/res/drawable-hdpi/ic_launcher.png
new file mode 100644
index 0000000..96a442e
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/res/drawable-hdpi/ic_launcher.png
Binary files differ
diff --git a/framesequence/samples/RastermillSamples/res/drawable-mdpi/ic_launcher.png b/framesequence/samples/RastermillSamples/res/drawable-mdpi/ic_launcher.png
new file mode 100644
index 0000000..359047d
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/res/drawable-mdpi/ic_launcher.png
Binary files differ
diff --git a/framesequence/samples/RastermillSamples/res/drawable-xhdpi/ic_launcher.png b/framesequence/samples/RastermillSamples/res/drawable-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..71c6d76
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/res/drawable-xhdpi/ic_launcher.png
Binary files differ
diff --git a/framesequence/samples/RastermillSamples/res/layout/basic_test_activity.xml b/framesequence/samples/RastermillSamples/res/layout/basic_test_activity.xml
new file mode 100644
index 0000000..0b9a2df
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/res/layout/basic_test_activity.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+ xmlns:android="http://schemas.android.com/apk/res/android"
+ android:orientation="vertical"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent">
+ <ImageView
+ android:id="@+id/imageview"
+ android:layout_width="match_parent"
+ android:layout_height="300dp" />
+ <LinearLayout
+ android:orientation="horizontal"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content">
+ <Button
+ android:id="@+id/start"
+ android:text="@string/start"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"/>
+ <Button
+ android:id="@+id/stop"
+ android:text="@string/stop"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"/>
+ <Button
+ android:id="@+id/vis"
+ android:text="@string/vis"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"/>
+ <Button
+ android:id="@+id/invis"
+ android:text="@string/invis"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"/>
+ </LinearLayout>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/framesequence/samples/RastermillSamples/res/raw/animated.gif b/framesequence/samples/RastermillSamples/res/raw/animated.gif
new file mode 100644
index 0000000..51baf15
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/res/raw/animated.gif
Binary files differ
diff --git a/framesequence/samples/RastermillSamples/res/values/strings.xml b/framesequence/samples/RastermillSamples/res/values/strings.xml
new file mode 100644
index 0000000..8b85b8e
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/res/values/strings.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+ <string name="app_name">Rastermill Samples</string>
+ <string name="action_settings">Settings</string>
+
+ <string name="start">start</string>
+ <string name="stop">stop</string>
+ <string name="vis">vis</string>
+ <string name="invis">invis</string>
+
+</resources>
diff --git a/framesequence/samples/RastermillSamples/res/values/styles.xml b/framesequence/samples/RastermillSamples/res/values/styles.xml
new file mode 100644
index 0000000..737bdc3
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/res/values/styles.xml
@@ -0,0 +1,7 @@
+<resources>
+
+ <!-- Application theme. -->
+ <style name="AppTheme" parent="android:Theme.Holo.Light.DarkActionBar">
+ </style>
+
+</resources>
diff --git a/framesequence/samples/RastermillSamples/src/com/android/rastermill/samples/AnimatedGifTest.java b/framesequence/samples/RastermillSamples/src/com/android/rastermill/samples/AnimatedGifTest.java
new file mode 100644
index 0000000..45d3415
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/src/com/android/rastermill/samples/AnimatedGifTest.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+package com.android.rastermill.samples;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.support.rastermill.FrameSequence;
+import android.support.rastermill.FrameSequenceDrawable;
+import android.view.View;
+import android.widget.ImageView;
+
+import java.io.InputStream;
+
+public class AnimatedGifTest extends Activity {
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+
+ setContentView(R.layout.basic_test_activity);
+ ImageView imageView = (ImageView) findViewById(R.id.imageview);
+
+ InputStream is = getResources().openRawResource(R.raw.animated);
+
+ FrameSequence fs = FrameSequence.decodeStream(is);
+ final FrameSequenceDrawable drawable = new FrameSequenceDrawable(fs);
+ imageView.setImageDrawable(drawable);
+
+ findViewById(R.id.start).setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(View view) {
+ drawable.start();
+ }
+ });
+ findViewById(R.id.stop).setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(View view) {
+ drawable.stop();
+ }
+ });
+ findViewById(R.id.vis).setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(View view) {
+ drawable.setVisible(true, true);
+ }
+ });
+ findViewById(R.id.invis).setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(View view) {
+ drawable.setVisible(false, true);
+ }
+ });
+ }
+}
diff --git a/framesequence/samples/RastermillSamples/src/com/android/rastermill/samples/SamplesList.java b/framesequence/samples/RastermillSamples/src/com/android/rastermill/samples/SamplesList.java
new file mode 100644
index 0000000..0447537
--- /dev/null
+++ b/framesequence/samples/RastermillSamples/src/com/android/rastermill/samples/SamplesList.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+package com.android.rastermill.samples;
+
+import android.app.ListActivity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.ListView;
+import android.widget.SimpleAdapter;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+
+public class SamplesList extends ListActivity {
+
+ static final String KEY_NAME = "name";
+ static final String KEY_CLASS = "clazz";
+
+ static Map<String,?> makeSample(String name, Class<?> activity) {
+ Map<String,Object> ret = new HashMap<String,Object>();
+ ret.put(KEY_NAME, name);
+ ret.put(KEY_CLASS, activity);
+ return ret;
+ }
+
+ @SuppressWarnings("serial")
+ static final ArrayList<Map<String,?>> SAMPLES = new ArrayList<Map<String,?>>() {{
+ add(makeSample("Animation Test", AnimatedGifTest.class));
+ }};
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setListAdapter(new SimpleAdapter(this, SAMPLES,
+ android.R.layout.simple_list_item_1, new String[] { KEY_NAME },
+ new int[] { android.R.id.text1 }));
+ }
+
+ @Override
+ protected void onListItemClick(ListView l, View v, int position, long id) {
+ Class<?> clazz = (Class<?>) SAMPLES.get(position).get(KEY_CLASS);
+ startActivity(new Intent(this, clazz));
+ }
+
+}
diff --git a/framesequence/src/android/support/rastermill/FrameSequence.java b/framesequence/src/android/support/rastermill/FrameSequence.java
new file mode 100644
index 0000000..5881ea9
--- /dev/null
+++ b/framesequence/src/android/support/rastermill/FrameSequence.java
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+package android.support.rastermill;
+
+import android.graphics.Bitmap;
+
+import java.io.InputStream;
+
+public class FrameSequence {
+ static {
+ System.loadLibrary("framesequence");
+ }
+
+ private final int mNativeFrameSequence;
+ private final int mWidth;
+ private final int mHeight;
+ private final int mFrameCount;
+ private final boolean mOpaque;
+
+ public int getWidth() { return mWidth; }
+ public int getHeight() { return mHeight; }
+ public int getFrameCount() { return mFrameCount; }
+ public boolean isOpaque() { return mOpaque; }
+
+ private static native FrameSequence nativeDecodeByteArray(byte[] data, int offset, int length);
+ private static native FrameSequence nativeDecodeStream(InputStream is, byte[] tempStorage);
+ private static native void nativeDestroyFrameSequence(int nativeFrameSequence);
+ private static native int nativeCreateState(int nativeFrameSequence);
+ private static native void nativeDestroyState(int nativeState);
+ private static native long nativeGetFrame(int nativeState, int frameNr,
+ Bitmap output, int previousFrameNr);
+
+ @SuppressWarnings("unused") // called by native
+ private FrameSequence(int nativeFrameSequence, int width, int height,
+ int frameCount, boolean opaque) {
+ mNativeFrameSequence = nativeFrameSequence;
+ mWidth = width;
+ mHeight = height;
+ mFrameCount = frameCount;
+ mOpaque = opaque;
+ }
+
+ public static FrameSequence decodeByteArray(byte[] data) {
+ return decodeByteArray(data, 0, data.length);
+ }
+
+ public static FrameSequence decodeByteArray(byte[] data, int offset, int length) {
+ if (data == null) throw new IllegalArgumentException();
+ if (offset < 0 || length < 0 || (offset + length > data.length)) {
+ throw new IllegalArgumentException("invalid offset/length parameters");
+ }
+ return nativeDecodeByteArray(data, offset, length);
+ }
+
+ public static FrameSequence decodeStream(InputStream stream) {
+ if (stream == null) throw new IllegalArgumentException();
+ byte[] tempStorage = new byte[16 * 1024]; // TODO: use buffer pool
+ return nativeDecodeStream(stream, tempStorage);
+ }
+
+ State createState() {
+ if (mNativeFrameSequence == 0) {
+ throw new IllegalStateException("attempted to use incorrectly built FrameSequence");
+ }
+
+ int nativeState = nativeCreateState(mNativeFrameSequence);
+ if (nativeState == 0) {
+ return null;
+ }
+ return new State(nativeState);
+ }
+
+ @Override
+ protected void finalize() throws Throwable {
+ try {
+ if (mNativeFrameSequence != 0) nativeDestroyFrameSequence(mNativeFrameSequence);
+ } finally {
+ super.finalize();
+ }
+ }
+
+ /**
+ * Playback state used when moving frames forward in a frame sequence.
+ *
+ * Note that this doesn't require contiguous frames to be rendered, it just stores
+ * information (in the case of gif, a recall buffer) that will be used to construct
+ * frames based upon data recorded before previousFrameNr.
+ *
+ * Note: {@link #recycle()} *must* be called before the object is GC'd to free native resources
+ *
+ * Note: State holds a native ref to its FrameSequence instance, so its FrameSequence should
+ * remain ref'd while it is in use
+ */
+ static class State {
+ private int mNativeState;
+
+ public State(int nativeState) {
+ mNativeState = nativeState;
+ }
+
+ public void recycle() {
+ if (mNativeState != 0) {
+ nativeDestroyState(mNativeState);
+ mNativeState = 0;
+ }
+ }
+
+ // TODO: consider adding alternate API for drawing into a SurfaceTexture
+ public long getFrame(int frameNr, Bitmap output, int previousFrameNr) {
+ if (output == null || output.getConfig() != Bitmap.Config.ARGB_8888) {
+ throw new IllegalArgumentException("Bitmap passed must be non-null and ARGB_8888");
+ }
+ if (mNativeState == 0) {
+ throw new IllegalStateException("attempted to draw recycled FrameSequenceState");
+ }
+ return nativeGetFrame(mNativeState, frameNr, output, previousFrameNr);
+ }
+ }
+
+ // TODO: add recycle() cleanup method
+}
diff --git a/framesequence/src/android/support/rastermill/FrameSequenceDrawable.java b/framesequence/src/android/support/rastermill/FrameSequenceDrawable.java
new file mode 100644
index 0000000..94f4da0
--- /dev/null
+++ b/framesequence/src/android/support/rastermill/FrameSequenceDrawable.java
@@ -0,0 +1,246 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+package android.support.rastermill;
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.Paint;
+import android.graphics.PixelFormat;
+import android.graphics.Rect;
+import android.graphics.drawable.Animatable;
+import android.graphics.drawable.Drawable;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.SystemClock;
+
+public class FrameSequenceDrawable extends Drawable implements Animatable, Runnable {
+ private static final Object sLock = new Object();
+ private static HandlerThread sDecodingThread;
+ private static Handler sDecodingThreadHandler;
+ private static void initializeDecodingThread() {
+ synchronized (sLock) {
+ if (sDecodingThread != null) return;
+
+ sDecodingThread = new HandlerThread("FrameSequence decoding thread");
+ sDecodingThread.start();
+ sDecodingThreadHandler = new Handler(sDecodingThread.getLooper());
+ }
+ }
+
+ private final FrameSequence mFrameSequence;
+ private final FrameSequence.State mFrameSequenceState;
+
+ private final Paint mPaint;
+ private final Rect mSrcRect;
+
+ //Protects the fields below
+ private final Object mLock = new Object();
+
+ private Bitmap mFrontBitmap;
+ private Bitmap mBackBitmap;
+
+ private static final int STATE_SCHEDULED = 1;
+ private static final int STATE_DECODING = 2;
+ private static final int STATE_WAITING_TO_SWAP = 3;
+ private static final int STATE_READY_TO_SWAP = 4;
+
+ private int mState;
+
+ private long mLastSwap;
+ private int mNextFrameToDecode;
+
+ /**
+ * Runs on decoding thread, only modifies mBackBitmap's pixels
+ */
+ private Runnable mDecodeRunnable = new Runnable() {
+ @Override
+ public void run() {
+ int nextFrame;
+ Bitmap bitmap;
+ synchronized (mLock) {
+ nextFrame = mNextFrameToDecode;
+ if (nextFrame < 0) {
+ return;
+ }
+ bitmap = mBackBitmap;
+ mState = STATE_DECODING;
+ }
+ int lastFrame = nextFrame - 2;
+ long invalidateTimeMs = mFrameSequenceState.getFrame(nextFrame, bitmap, lastFrame);
+
+ synchronized (mLock) {
+ if (mNextFrameToDecode < 0 || mState != STATE_DECODING) return;
+ invalidateTimeMs += mLastSwap;
+
+ mState = STATE_WAITING_TO_SWAP;
+ }
+ scheduleSelf(FrameSequenceDrawable.this, invalidateTimeMs);
+ }
+ };
+
+
+ public FrameSequenceDrawable(FrameSequence frameSequence) {
+ if (frameSequence == null) throw new IllegalArgumentException();
+
+ mFrameSequence = frameSequence;
+ mFrameSequenceState = frameSequence.createState();
+ // TODO: add callback for requesting bitmaps, to allow for reuse
+ final int width = frameSequence.getWidth();
+ final int height = frameSequence.getHeight();
+
+ mFrontBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+ mBackBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+ mSrcRect = new Rect(0, 0, width, height);
+ mPaint = new Paint();
+ mPaint.setFilterBitmap(true);
+
+ mLastSwap = 0;
+
+ mNextFrameToDecode = -1;
+ mFrameSequenceState.getFrame(0, mFrontBitmap, -1);
+ initializeDecodingThread();
+ }
+
+ @Override
+ protected void finalize() throws Throwable {
+ try {
+ mFrontBitmap.recycle();
+ mBackBitmap.recycle();
+ mFrameSequenceState.recycle();
+ } finally {
+ super.finalize();
+ }
+ }
+
+ @Override
+ public void draw(Canvas canvas) {
+ synchronized (mLock) {
+ if (isRunning() && mState == STATE_READY_TO_SWAP) {
+ // Because draw has occurred, the view system is guaranteed to no longer hold a
+ // reference to the old mFrontBitmap, so we now use it to produce the next frame
+ Bitmap tmp = mBackBitmap;
+ mBackBitmap = mFrontBitmap;
+ mFrontBitmap = tmp;
+
+ mLastSwap = SystemClock.uptimeMillis();
+ scheduleDecodeLocked();
+ }
+ }
+
+ canvas.drawBitmap(mFrontBitmap, mSrcRect, getBounds(), mPaint);
+ }
+
+ private void scheduleDecodeLocked() {
+ mState = STATE_SCHEDULED;
+ mNextFrameToDecode = (mNextFrameToDecode + 1) % mFrameSequence.getFrameCount();
+ sDecodingThreadHandler.post(mDecodeRunnable);
+ }
+
+ @Override
+ public void run() {
+ // set ready to swap
+ synchronized (mLock) {
+ if (mState != STATE_WAITING_TO_SWAP || mNextFrameToDecode < 0) return;
+ mState = STATE_READY_TO_SWAP;
+ }
+ invalidateSelf();
+ }
+
+ @Override
+ public void start() {
+ if (!isRunning()) {
+ synchronized (mLock) {
+ if (mState == STATE_SCHEDULED) return; // already scheduled
+ scheduleDecodeLocked();
+ }
+ }
+ }
+
+ @Override
+ public void stop() {
+ if (isRunning()) {
+ unscheduleSelf(this);
+ }
+ }
+
+ @Override
+ public boolean isRunning() {
+ synchronized (mLock) {
+ return mNextFrameToDecode > -1;
+ }
+ }
+
+ @Override
+ public void scheduleSelf(Runnable what, long when) {
+ super.scheduleSelf(what, when);
+ }
+
+ @Override
+ public void unscheduleSelf(Runnable what) {
+ synchronized (mLock) {
+ mNextFrameToDecode = -1;
+ }
+ super.unscheduleSelf(what);
+ }
+
+ @Override
+ public boolean setVisible(boolean visible, boolean restart) {
+ boolean changed = super.setVisible(visible, restart);
+
+ if (!visible) {
+ stop();
+ } else if (restart || changed) {
+ stop();
+ start();
+ }
+
+ return changed;
+ }
+
+ // drawing properties
+
+ @Override
+ public void setFilterBitmap(boolean filter) {
+ mPaint.setFilterBitmap(filter);
+ }
+
+ @Override
+ public void setAlpha(int alpha) {
+ mPaint.setAlpha(alpha);
+ }
+
+ @Override
+ public void setColorFilter(ColorFilter colorFilter) {
+ mPaint.setColorFilter(colorFilter);
+ }
+
+ @Override
+ public int getIntrinsicWidth() {
+ return mFrameSequence.getWidth();
+ }
+
+ @Override
+ public int getIntrinsicHeight() {
+ return mFrameSequence.getHeight();
+ }
+
+ @Override
+ public int getOpacity() {
+ return mFrameSequence.isOpaque() ? PixelFormat.OPAQUE : PixelFormat.TRANSPARENT;
+ }
+}
