static jobject Bitmap_extractAlpha(JNIEnv* env, jobject clazz,
jlong srcHandle, jlong paintHandle,
jintArray offsetXY) {
const SkBitmap* src = reinterpret_cast<SkBitmap*>(srcHandle);
const android::Paint* paint = reinterpret_cast<android::Paint*>(paintHandle);
SkIPoint offset;
SkBitmap* dst = new SkBitmap;
JavaPixelAllocator allocator(env);
src->extractAlpha(dst, paint, &allocator, &offset);
// If Skia can't allocate pixels for destination bitmap, it resets
// it, that is set its pixels buffer to NULL, and zero width and height.
if (dst->getPixels() == NULL && src->getPixels() != NULL) {
delete dst;
doThrowOOME(env, "failed to allocate pixels for alpha");
return NULL;
}
if (offsetXY != 0 && env->GetArrayLength(offsetXY) >= 2) {
int* array = env->GetIntArrayElements(offsetXY, NULL);
array[0] = offset.fX;
array[1] = offset.fY;
env->ReleaseIntArrayElements(offsetXY, array, 0);
}
return GraphicsJNI::createBitmap(env, dst, allocator.getStorageObj(),
getPremulBitmapCreateFlags(true), NULL, NULL);
}
static jobject Bitmap_creator(JNIEnv* env, jobject, jintArray jColors,
jint offset, jint stride, jint width, jint height,
jint configHandle, jboolean isMutable) {
SkColorType colorType = GraphicsJNI::legacyBitmapConfigToColorType(configHandle);
if (NULL != jColors) {
size_t n = env->GetArrayLength(jColors);
if (n < SkAbs32(stride) * (size_t)height) {
doThrowAIOOBE(env);
return NULL;
}
}
// ARGB_4444 is a deprecated format, convert automatically to 8888
if (colorType == kARGB_4444_SkColorType) {
colorType = kN32_SkColorType;
}
SkBitmap bitmap;
bitmap.setInfo(SkImageInfo::Make(width, height, colorType, kPremul_SkAlphaType));
jbyteArray buff = GraphicsJNI::allocateJavaPixelRef(env, &bitmap, NULL);
if (NULL == buff) {
return NULL;
}
if (jColors != NULL) {
GraphicsJNI::SetPixels(env, jColors, offset, stride,
0, 0, width, height, bitmap);
}
return GraphicsJNI::createBitmap(env, new SkBitmap(bitmap), buff,
getPremulBitmapCreateFlags(isMutable), NULL, NULL);
}
static jobject Bitmap_creator(JNIEnv* env, jobject, jintArray jColors,
jint offset, jint stride, jint width, jint height,
jint configHandle, jboolean isMutable) {
SkBitmap::Config config = static_cast<SkBitmap::Config>(configHandle);
if (NULL != jColors) {
size_t n = env->GetArrayLength(jColors);
if (n < SkAbs32(stride) * (size_t)height) {
doThrowAIOOBE(env);
return NULL;
}
}
// ARGB_4444 is a deprecated format, convert automatically to 8888
if (config == SkBitmap::kARGB_4444_Config) {
config = SkBitmap::kARGB_8888_Config;
}
SkBitmap bitmap;
bitmap.setConfig(config, width, height);
jbyteArray buff = GraphicsJNI::allocateJavaPixelRef(env, &bitmap, NULL);
if (NULL == buff) {
return NULL;
}
if (jColors != NULL) {
GraphicsJNI::SetPixels(env, jColors, offset, stride,
0, 0, width, height, bitmap, true);
}
return GraphicsJNI::createBitmap(env, new SkBitmap(bitmap), buff,
getPremulBitmapCreateFlags(isMutable), NULL, NULL);
}
static jobject Bitmap_copy(JNIEnv* env, jobject, jlong srcHandle,
jint dstConfigHandle, jboolean isMutable) {
const SkBitmap* src = reinterpret_cast<SkBitmap*>(srcHandle);
SkColorType dstCT = GraphicsJNI::legacyBitmapConfigToColorType(dstConfigHandle);
SkBitmap result;
JavaPixelAllocator allocator(env);
if (!src->copyTo(&result, dstCT, &allocator)) {
return NULL;
}
return GraphicsJNI::createBitmap(env, new SkBitmap(result), allocator.getStorageObj(),
getPremulBitmapCreateFlags(isMutable), NULL, NULL);
}
static jobject Bitmap_createFromParcel(JNIEnv* env, jobject, jobject parcel) {
if (parcel == NULL) {
SkDebugf("-------- unparcel parcel is NULL\n");
return NULL;
}
android::Parcel* p = android::parcelForJavaObject(env, parcel);
const bool isMutable = p->readInt32() != 0;
const SkColorType colorType = (SkColorType)p->readInt32();
const SkAlphaType alphaType = (SkAlphaType)p->readInt32();
const int width = p->readInt32();
const int height = p->readInt32();
const int rowBytes = p->readInt32();
const int density = p->readInt32();
if (kN32_SkColorType != colorType &&
kRGB_565_SkColorType != colorType &&
kARGB_4444_SkColorType != colorType &&
kIndex_8_SkColorType != colorType &&
kAlpha_8_SkColorType != colorType) {
SkDebugf("Bitmap_createFromParcel unknown colortype: %d\n", colorType);
return NULL;
}
SkAutoTDelete<SkBitmap> bitmap(new SkBitmap);
if (!bitmap->setInfo(SkImageInfo::Make(width, height, colorType, alphaType), rowBytes)) {
return NULL;
}
SkColorTable* ctable = NULL;
if (colorType == kIndex_8_SkColorType) {
int count = p->readInt32();
if (count < 0 || count > 256) {
// The data is corrupt, since SkColorTable enforces a value between 0 and 256,
// inclusive.
return NULL;
}
if (count > 0) {
size_t size = count * sizeof(SkPMColor);
const SkPMColor* src = (const SkPMColor*)p->readInplace(size);
if (src == NULL) {
return NULL;
}
ctable = new SkColorTable(src, count);
}
}
jbyteArray buffer = GraphicsJNI::allocateJavaPixelRef(env, bitmap.get(), ctable);
if (NULL == buffer) {
SkSafeUnref(ctable);
return NULL;
}
SkSafeUnref(ctable);
size_t size = bitmap->getSize();
android::Parcel::ReadableBlob blob;
android::status_t status = p->readBlob(size, &blob);
if (status) {
doThrowRE(env, "Could not read bitmap from parcel blob.");
return NULL;
}
bitmap->lockPixels();
memcpy(bitmap->getPixels(), blob.data(), size);
bitmap->unlockPixels();
blob.release();
return GraphicsJNI::createBitmap(env, bitmap.detach(), buffer,
getPremulBitmapCreateFlags(isMutable), NULL, NULL, density);
}
static jobject Bitmap_createFromParcel(JNIEnv* env, jobject, jobject parcel) {
if (parcel == NULL) {
SkDebugf("-------- unparcel parcel is NULL\n");
return NULL;
}
android::Parcel* p = android::parcelForJavaObject(env, parcel);
const bool isMutable = p->readInt32() != 0;
const SkBitmap::Config config = (SkBitmap::Config)p->readInt32();
const int width = p->readInt32();
const int height = p->readInt32();
const int rowBytes = p->readInt32();
const int density = p->readInt32();
if (SkBitmap::kARGB_8888_Config != config &&
SkBitmap::kRGB_565_Config != config &&
SkBitmap::kARGB_4444_Config != config &&
SkBitmap::kIndex8_Config != config &&
SkBitmap::kA8_Config != config) {
SkDebugf("Bitmap_createFromParcel unknown config: %d\n", config);
return NULL;
}
SkBitmap* bitmap = new SkBitmap;
bitmap->setConfig(config, width, height, rowBytes);
SkColorTable* ctable = NULL;
if (config == SkBitmap::kIndex8_Config) {
int count = p->readInt32();
if (count > 0) {
size_t size = count * sizeof(SkPMColor);
const SkPMColor* src = (const SkPMColor*)p->readInplace(size);
ctable = new SkColorTable(src, count);
}
}
jbyteArray buffer = GraphicsJNI::allocateJavaPixelRef(env, bitmap, ctable);
if (NULL == buffer) {
SkSafeUnref(ctable);
delete bitmap;
return NULL;
}
SkSafeUnref(ctable);
size_t size = bitmap->getSize();
android::Parcel::ReadableBlob blob;
android::status_t status = p->readBlob(size, &blob);
if (status) {
doThrowRE(env, "Could not read bitmap from parcel blob.");
delete bitmap;
return NULL;
}
bitmap->lockPixels();
memcpy(bitmap->getPixels(), blob.data(), size);
bitmap->unlockPixels();
blob.release();
return GraphicsJNI::createBitmap(env, bitmap, buffer, getPremulBitmapCreateFlags(isMutable),
NULL, NULL, density);
}
