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// Tencent is pleased to support the open source community by making ncnn available.
//
// Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
//
// Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// https://opensource.org/licenses/BSD-3-Clause
//
// 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 "mat.h"
#if NCNN_PIXEL
#if NCNN_PLATFORM_API
#if __ANDROID_API__ >= 9
#include <android/bitmap.h>
#include <jni.h>
#endif // __ANDROID_API__ >= 9
#endif // NCNN_PLATFORM_API
namespace ncnn {
#if NCNN_PLATFORM_API
#if __ANDROID_API__ >= 9
Mat Mat::from_android_bitmap(JNIEnv* env, jobject bitmap, int type_to, Allocator* allocator)
{
AndroidBitmapInfo info;
AndroidBitmap_getInfo(env, bitmap, &info);
int type_from;
int elempack;
if (info.format == ANDROID_BITMAP_FORMAT_A_8)
{
type_from = PIXEL_GRAY;
elempack = 1;
}
else if (info.format == ANDROID_BITMAP_FORMAT_RGBA_8888)
{
type_from = PIXEL_RGBA;
elempack = 4;
}
else
{
// unsuppored android bitmap format
return Mat();
}
// let PIXEL_RGBA2XXX become PIXEL_XXX
type_to = (type_to & PIXEL_CONVERT_MASK) ? (type_to >> PIXEL_CONVERT_SHIFT) : (type_to & PIXEL_FORMAT_MASK);
void* data;
AndroidBitmap_lockPixels(env, bitmap, &data);
int type = type_to == type_from ? type_from : (type_from | (type_to << PIXEL_CONVERT_SHIFT));
Mat m = Mat::from_pixels((const unsigned char*)data, type, info.width, info.height, info.stride, allocator);
AndroidBitmap_unlockPixels(env, bitmap);
return m;
}
Mat Mat::from_android_bitmap_resize(JNIEnv* env, jobject bitmap, int type_to, int target_width, int target_height, Allocator* allocator)
{
AndroidBitmapInfo info;
AndroidBitmap_getInfo(env, bitmap, &info);
int type_from;
int elempack;
if (info.format == ANDROID_BITMAP_FORMAT_A_8)
{
type_from = PIXEL_GRAY;
elempack = 1;
}
else if (info.format == ANDROID_BITMAP_FORMAT_RGBA_8888)
{
type_from = PIXEL_RGBA;
elempack = 4;
}
else
{
// unsuppored android bitmap format
return Mat();
}
// let PIXEL_RGBA2XXX become PIXEL_XXX
type_to = (type_to & PIXEL_CONVERT_MASK) ? (type_to >> PIXEL_CONVERT_SHIFT) : (type_to & PIXEL_FORMAT_MASK);
void* data;
AndroidBitmap_lockPixels(env, bitmap, &data);
int type = type_to == type_from ? type_from : (type_from | (type_to << PIXEL_CONVERT_SHIFT));
Mat m = Mat::from_pixels_resize((const unsigned char*)data, type, info.width, info.height, info.stride, target_width, target_height, allocator);
AndroidBitmap_unlockPixels(env, bitmap);
return m;
}
Mat Mat::from_android_bitmap_roi(JNIEnv* env, jobject bitmap, int type_to, int roix, int roiy, int roiw, int roih, Allocator* allocator)
{
AndroidBitmapInfo info;
AndroidBitmap_getInfo(env, bitmap, &info);
int type_from;
int elempack;
if (info.format == ANDROID_BITMAP_FORMAT_A_8)
{
type_from = PIXEL_GRAY;
elempack = 1;
}
else if (info.format == ANDROID_BITMAP_FORMAT_RGBA_8888)
{
type_from = PIXEL_RGBA;
elempack = 4;
}
else
{
// unsuppored android bitmap format
return Mat();
}
// let PIXEL_RGBA2XXX become PIXEL_XXX
type_to = (type_to & PIXEL_CONVERT_MASK) ? (type_to >> PIXEL_CONVERT_SHIFT) : (type_to & PIXEL_FORMAT_MASK);
void* data;
AndroidBitmap_lockPixels(env, bitmap, &data);
int type = type_to == type_from ? type_from : (type_from | (type_to << PIXEL_CONVERT_SHIFT));
Mat m = Mat::from_pixels_roi((const unsigned char*)data, type, info.width, info.height, info.stride, roix, roiy, roiw, roih, allocator);
AndroidBitmap_unlockPixels(env, bitmap);
return m;
}
Mat Mat::from_android_bitmap_roi_resize(JNIEnv* env, jobject bitmap, int type_to, int roix, int roiy, int roiw, int roih, int target_width, int target_height, Allocator* allocator)
{
AndroidBitmapInfo info;
AndroidBitmap_getInfo(env, bitmap, &info);
int type_from;
int elempack;
if (info.format == ANDROID_BITMAP_FORMAT_A_8)
{
type_from = PIXEL_GRAY;
elempack = 1;
}
else if (info.format == ANDROID_BITMAP_FORMAT_RGBA_8888)
{
type_from = PIXEL_RGBA;
elempack = 4;
}
else
{
// unsuppored android bitmap format
return Mat();
}
// let PIXEL_RGBA2XXX become PIXEL_XXX
type_to = (type_to & PIXEL_CONVERT_MASK) ? (type_to >> PIXEL_CONVERT_SHIFT) : (type_to & PIXEL_FORMAT_MASK);
void* data;
AndroidBitmap_lockPixels(env, bitmap, &data);
int type = type_to == type_from ? type_from : (type_from | (type_to << PIXEL_CONVERT_SHIFT));
Mat m = Mat::from_pixels_roi_resize((const unsigned char*)data, type, info.width, info.height, info.stride, roix, roiy, roiw, roih, target_width, target_height, allocator);
AndroidBitmap_unlockPixels(env, bitmap);
return m;
}
void Mat::to_android_bitmap(JNIEnv* env, jobject bitmap, int type_from) const
{
AndroidBitmapInfo info;
AndroidBitmap_getInfo(env, bitmap, &info);
int type_to;
if (info.format == ANDROID_BITMAP_FORMAT_A_8)
{
type_to = PIXEL_GRAY;
}
else if (info.format == ANDROID_BITMAP_FORMAT_RGBA_8888)
{
type_to = PIXEL_RGBA;
}
else
{
// unsuppored android bitmap format
return;
}
// let PIXEL_XXX2RGBA become PIXEL_XXX
type_from = (type_from & PIXEL_CONVERT_MASK) ? (type_from & PIXEL_FORMAT_MASK) : type_from;
void* _data;
AndroidBitmap_lockPixels(env, bitmap, &_data);
int type = type_from == type_to ? type_to : (type_from | (type_to << PIXEL_CONVERT_SHIFT));
to_pixels_resize((unsigned char*)_data, type, info.width, info.height, info.stride);
AndroidBitmap_unlockPixels(env, bitmap);
}
#endif // __ANDROID_API__ >= 9
#endif // NCNN_PLATFORM_API
} // namespace ncnn
#endif // NCNN_PIXEL
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