tests/tests/graphics/jni/android_graphics_cts_BitmapTest.cpp

/*
 * Copyright 2017 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.
 *
 */

#define LOG_TAG "BitmapTest"

#include <jni.h>
#include <android/bitmap.h>
#include <cstdlib>
#include <cstring>

// Copied from tests/sensor/jni/nativeTestHelper.h
// TODO: Move to a shared location
#define ASSERT(condition, format, args...) \
        if (!(condition)) { \
            fail(env, format, ## args); \
            return; \
        }

#define ASSERT_TRUE(a) ASSERT((a), "assert failed on (" #a ") at " __FILE__ ":%d", __LINE__)
#define ASSERT_FALSE(a) ASSERT(!(a), "assert failed on (!" #a ") at " __FILE__ ":%d", __LINE__)
#define ASSERT_EQ(a, b) \
        ASSERT((a) == (b), "assert failed on (" #a " == " #b ") at " __FILE__ ":%d", __LINE__)
#define ASSERT_NE(a, b) \
        ASSERT((a) != (b), "assert failed on (" #a " != " #b ") at " __FILE__ ":%d", __LINE__)
#define ASSERT_GT(a, b) \
        ASSERT((a) > (b), "assert failed on (" #a " > " #b ") at " __FILE__ ":%d", __LINE__)
#define ASSERT_GE(a, b) \
        ASSERT((a) >= (b), "assert failed on (" #a " >= " #b ") at " __FILE__ ":%d", __LINE__)
#define ASSERT_LT(a, b) \
        ASSERT((a) < (b), "assert failed on (" #a " < " #b ") at " __FILE__ ":%d", __LINE__)
#define ASSERT_LE(a, b) \
        ASSERT((a) <= (b), "assert failed on (" #a " <= " #b ") at " __FILE__ ":%d", __LINE__)

static void fail(JNIEnv* env, const char* format, ...) {
    va_list args;

    va_start(args, format);
    char *msg;
    vasprintf(&msg, format, args);
    va_end(args);

    jclass exClass;
    const char *className = "java/lang/AssertionError";
    exClass = env->FindClass(className);
    env->ThrowNew(exClass, msg);
    free(msg);
}

static void validateBitmapInfo(JNIEnv* env, jclass, jobject jbitmap, jint width, jint height,
        jboolean is565) {
    AndroidBitmapInfo info;
    int err = 0;
    err = AndroidBitmap_getInfo(env, jbitmap, &info);
    ASSERT_EQ(ANDROID_BITMAP_RESULT_SUCCESS, err);
    ASSERT_TRUE(width >= 0 && height >= 0);
    ASSERT_EQ((uint32_t) width, info.width);
    ASSERT_EQ((uint32_t) height, info.height);
    int32_t format = is565 ? ANDROID_BITMAP_FORMAT_RGB_565 : ANDROID_BITMAP_FORMAT_RGBA_8888;
    ASSERT_EQ(format, info.format);
}

static void validateNdkAccessAfterRecycle(JNIEnv* env, jclass, jobject jbitmap) {
    void* pixels = nullptr;
    int err = AndroidBitmap_lockPixels(env, jbitmap, &pixels);
    ASSERT_EQ(err, ANDROID_BITMAP_RESULT_JNI_EXCEPTION);
}

static JNINativeMethod gMethods[] = {
    { "nValidateBitmapInfo", "(Landroid/graphics/Bitmap;IIZ)V",
        (void*) validateBitmapInfo },
    { "nValidateNdkAccessAfterRecycle", "(Landroid/graphics/Bitmap;)V",
        (void*) validateNdkAccessAfterRecycle },
};

int register_android_graphics_cts_BitmapTest(JNIEnv* env) {
    jclass clazz = env->FindClass("android/graphics/cts/BitmapTest");
    return env->RegisterNatives(clazz, gMethods,
            sizeof(gMethods) / sizeof(JNINativeMethod));
}