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/*
* Copyright (C) 2007 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 <stdio.h>
#include <assert.h>
#include <ui/PixelFormat.h>
#include "jni.h"
#include "JNIHelp.h"
#include <android_runtime/AndroidRuntime.h>
#include <utils/misc.h>
// ----------------------------------------------------------------------------
namespace android {
// ----------------------------------------------------------------------------
struct offsets_t {
jfieldID bytesPerPixel;
jfieldID bitsPerPixel;
};
static offsets_t offsets;
// ----------------------------------------------------------------------------
static void android_graphics_getPixelFormatInfo(
JNIEnv* env, jobject clazz, jint format, jobject pixelFormatObject)
{
PixelFormatInfo info;
status_t err;
// we need this for backward compatibility with PixelFormat's
// deprecated constants
switch (format) {
case HAL_PIXEL_FORMAT_YCbCr_422_SP:
// defined as the bytes per pixel of the Y plane
info.bytesPerPixel = 1;
info.bitsPerPixel = 16;
goto done;
case HAL_PIXEL_FORMAT_YCrCb_420_SP:
// defined as the bytes per pixel of the Y plane
info.bytesPerPixel = 1;
info.bitsPerPixel = 12;
goto done;
case HAL_PIXEL_FORMAT_YCbCr_422_I:
// defined as the bytes per pixel of the Y plane
info.bytesPerPixel = 1;
info.bitsPerPixel = 16;
goto done;
}
err = getPixelFormatInfo(format, &info);
if (err < 0) {
jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
return;
}
done:
env->SetIntField(pixelFormatObject, offsets.bytesPerPixel, info.bytesPerPixel);
env->SetIntField(pixelFormatObject, offsets.bitsPerPixel, info.bitsPerPixel);
}
// ----------------------------------------------------------------------------
const char* const kClassPathName = "android/graphics/PixelFormat";
static void nativeClassInit(JNIEnv* env, jclass clazz);
static JNINativeMethod gMethods[] = {
{ "nativeClassInit", "()V",
(void*)nativeClassInit },
{ "getPixelFormatInfo", "(ILandroid/graphics/PixelFormat;)V",
(void*)android_graphics_getPixelFormatInfo
}
};
void nativeClassInit(JNIEnv* env, jclass clazz)
{
offsets.bytesPerPixel = env->GetFieldID(clazz, "bytesPerPixel", "I");
offsets.bitsPerPixel = env->GetFieldID(clazz, "bitsPerPixel", "I");
}
int register_android_graphics_PixelFormat(JNIEnv* env)
{
return AndroidRuntime::registerNativeMethods(env,
kClassPathName, gMethods, NELEM(gMethods));
}
};
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