static jobject Bitmap_creator(JNIEnv* env, jobject, jintArray jColors,
int offset, int stride, int width, int height,
SkBitmap::Config config, jboolean isMutable) {
if (NULL != jColors) {
size_t n = env->GetArrayLength(jColors);
if (n < SkAbs32(stride) * (size_t)height) {
doThrowAIOOBE(env);
return NULL;
}
}
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);
}
return GraphicsJNI::createBitmap(env, new SkBitmap(bitmap), buff, isMutable, 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 void doPoints(JNIEnv* env, jobject jcanvas, jfloatArray jptsArray,
jint offset, jint count, jobject jpaint,
SkCanvas::PointMode mode) {
NPE_CHECK_RETURN_VOID(env, jcanvas);
NPE_CHECK_RETURN_VOID(env, jptsArray);
NPE_CHECK_RETURN_VOID(env, jpaint);
SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, jcanvas);
const SkPaint& paint = *GraphicsJNI::getNativePaint(env, jpaint);
AutoJavaFloatArray autoPts(env, jptsArray);
float* floats = autoPts.ptr();
const int length = autoPts.length();
if ((offset | count) < 0 || offset + count > length) {
doThrowAIOOBE(env);
return;
}
// now convert the floats into SkPoints
count >>= 1; // now it is the number of points
SkAutoSTMalloc<32, SkPoint> storage(count);
SkPoint* pts = storage.get();
const float* src = floats + offset;
for (int i = 0; i < count; i++) {
pts[i].set(SkFloatToScalar(src[0]), SkFloatToScalar(src[1]));
src += 2;
}
canvas->drawPoints(mode, count, pts, paint);
}
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 void drawLines(JNIEnv* env, jobject, jlong canvasHandle, jfloatArray jptsArray,
jint offset, jint count, jlong paintHandle) {
NPE_CHECK_RETURN_VOID(env, jptsArray);
AutoJavaFloatArray autoPts(env, jptsArray);
float* floats = autoPts.ptr();
const int length = autoPts.length();
if ((offset | count) < 0 || offset + count > length) {
doThrowAIOOBE(env);
return;
}
const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
get_canvas(canvasHandle)->drawLines(floats + offset, count, *paint);
}
static jobject movie_decodeByteArray(JNIEnv* env, jobject clazz,
jbyteArray byteArray,
jint offset, jint length) {
NPE_CHECK_RETURN_ZERO(env, byteArray);
int totalLength = env->GetArrayLength(byteArray);
if ((offset | length) < 0 || offset + length > totalLength) {
doThrowAIOOBE(env);
return 0;
}
AutoJavaByteArray ar(env, byteArray);
SkMovie* moov = SkMovie::DecodeMemory(ar.ptr() + offset, length);
return create_jmovie(env, moov);
}