95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
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/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <android/bitmap.h>
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#include <GraphicsJNI.h>
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int AndroidBitmap_getInfo(JNIEnv* env, jobject jbitmap,
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AndroidBitmapInfo* info) {
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if (NULL == env || NULL == jbitmap) {
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return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
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}
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SkBitmap* bm = GraphicsJNI::getNativeBitmap(env, jbitmap);
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if (NULL == bm) {
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return ANDROID_BITMAP_RESULT_JNI_EXCEPTION;
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}
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if (info) {
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info->width = bm->width();
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info->height = bm->height();
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info->stride = bm->rowBytes();
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info->flags = 0;
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switch (bm->config()) {
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case SkBitmap::kARGB_8888_Config:
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info->format = ANDROID_BITMAP_FORMAT_RGBA_8888;
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break;
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case SkBitmap::kRGB_565_Config:
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info->format = ANDROID_BITMAP_FORMAT_RGB_565;
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break;
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case SkBitmap::kARGB_4444_Config:
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info->format = ANDROID_BITMAP_FORMAT_RGBA_4444;
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break;
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case SkBitmap::kA8_Config:
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info->format = ANDROID_BITMAP_FORMAT_A_8;
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break;
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default:
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info->format = ANDROID_BITMAP_FORMAT_NONE;
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break;
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}
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}
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return ANDROID_BITMAP_RESUT_SUCCESS;
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}
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int AndroidBitmap_lockPixels(JNIEnv* env, jobject jbitmap, void** addrPtr) {
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if (NULL == env || NULL == jbitmap) {
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return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
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}
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SkBitmap* bm = GraphicsJNI::getNativeBitmap(env, jbitmap);
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if (NULL == bm) {
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return ANDROID_BITMAP_RESULT_JNI_EXCEPTION;
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}
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bm->lockPixels();
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void* addr = bm->getPixels();
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if (NULL == addr) {
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bm->unlockPixels();
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return ANDROID_BITMAP_RESULT_ALLOCATION_FAILED;
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}
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if (addrPtr) {
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*addrPtr = addr;
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}
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return ANDROID_BITMAP_RESUT_SUCCESS;
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}
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int AndroidBitmap_unlockPixels(JNIEnv* env, jobject jbitmap) {
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if (NULL == env || NULL == jbitmap) {
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return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
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}
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SkBitmap* bm = GraphicsJNI::getNativeBitmap(env, jbitmap);
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if (NULL == bm) {
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return ANDROID_BITMAP_RESULT_JNI_EXCEPTION;
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}
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bm->unlockPixels();
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return ANDROID_BITMAP_RESUT_SUCCESS;
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}
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