blob: e57060477ded6369a2f5dd5b6502311117799092 [file] [log] [blame]
/*
* Copyright 2021 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <jni.h>
#include "include/core/SkData.h"
#include "include/core/SkImage.h"
#include "include/core/SkM44.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkShader.h"
#include "include/core/SkTileMode.h"
#include "include/private/base/SkTo.h"
#include "modules/jetski/src/Utils.h"
namespace {
jlong Image_Create(JNIEnv* env, jobject, jbyteArray jdata) {
auto size = env->GetArrayLength(jdata);
auto* data = env->GetByteArrayElements(jdata, nullptr);
auto image = SkImage::MakeFromEncoded(SkData::MakeWithCopy(data, SkToSizeT(size)));
env->ReleaseByteArrayElements(jdata, data, 0);
return reinterpret_cast<jlong>(image.release());
}
void Image_Release(JNIEnv*, jobject, jlong native_instance) {
SkSafeUnref(reinterpret_cast<const SkImage*>(native_instance));
}
jint Image_GetWidth(JNIEnv*, jobject, jlong native_instance) {
const auto* image = reinterpret_cast<const SkImage*>(native_instance);
return image ? image->width() : 0;
}
jint Image_GetHeight(JNIEnv*, jobject, jlong native_instance) {
const auto* image = reinterpret_cast<const SkImage*>(native_instance);
return image ? image->height() : 0;
}
jlong Image_MakeShader(JNIEnv*, jobject, jlong native_instance, jint jtmx, jint jtmy,
jint sampling_desc, jfloat sampling_b, jfloat sampling_c,
jlong native_matrix) {
sk_sp<SkShader> shader;
if (const auto* image = reinterpret_cast<const SkImage*>(native_instance)) {
const auto tmx = jetski::utils::TileMode(jtmx),
tmy = jetski::utils::TileMode(jtmy);
const auto sampling = jetski::utils::SamplingOptions(sampling_desc,
sampling_b, sampling_c);
const auto* lm = reinterpret_cast<const SkM44*>(native_matrix);
shader = lm
? image->makeShader(tmx, tmy, sampling, lm->asM33())
: image->makeShader(tmx, tmy, sampling);
}
return reinterpret_cast<jlong>(shader.release());
}
} // namespace
int register_jetski_Image(JNIEnv* env) {
static const JNINativeMethod methods[] = {
{"nCreate" , "([B)J" , reinterpret_cast<void*>(Image_Create) },
{"nRelease" , "(J)V" , reinterpret_cast<void*>(Image_Release) },
{"nGetWidth" , "(J)I" , reinterpret_cast<void*>(Image_GetWidth) },
{"nGetHeight" , "(J)I" , reinterpret_cast<void*>(Image_GetHeight)},
{"nMakeShader", "(JIIIFFJ)J" , reinterpret_cast<void*>(Image_MakeShader)},
};
const auto clazz = env->FindClass("org/skia/jetski/Image");
return clazz
? env->RegisterNatives(clazz, methods, std::size(methods))
: JNI_ERR;
}