1a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins/* 2a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins * Copyright (C) 2011 The Android Open Source Project 3a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins * 4a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins * Licensed under the Apache License, Version 2.0 (the "License"); 5a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins * you may not use this file except in compliance with the License. 6a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins * You may obtain a copy of the License at 7a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins * 8a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins * http://www.apache.org/licenses/LICENSE-2.0 9a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins * 10a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins * Unless required by applicable law or agreed to in writing, software 11a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins * distributed under the License is distributed on an "AS IS" BASIS, 12a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins * See the License for the specific language governing permissions and 14a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins * limitations under the License. 15a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins */ 16a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins 17a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins#include "NinePatchPeeker.h" 18a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins 19a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins#include "SkBitmap.h" 20a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins 21a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scrogginsusing namespace android; 22a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins 23a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scrogginsbool NinePatchPeeker::peek(const char tag[], const void* data, size_t length) { 2447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik if (!strcmp("npTc", tag) && length >= sizeof(Res_png_9patch)) { 25a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins Res_png_9patch* patch = (Res_png_9patch*) data; 26a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins size_t patchSize = patch->serializedSize(); 27a730ef3f77fc495bc90199b4d45efab26d609782Leon Scroggins III if (length != patchSize) { 28a730ef3f77fc495bc90199b4d45efab26d609782Leon Scroggins III return false; 29a730ef3f77fc495bc90199b4d45efab26d609782Leon Scroggins III } 30a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins // You have to copy the data because it is owned by the png reader 31a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins Res_png_9patch* patchNew = (Res_png_9patch*) malloc(patchSize); 32a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins memcpy(patchNew, patch, patchSize); 33a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins Res_png_9patch::deserialize(patchNew); 34a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins patchNew->fileToDevice(); 3547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik free(mPatch); 3647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik mPatch = patchNew; 3747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik mPatchSize = patchSize; 38a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins 39a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins // now update our host to force index or 32bit config 40a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins // 'cause we don't want 565 predithered, since as a 9patch, we know 41a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins // we will be stretched, and therefore we want to dither afterwards. 4282b7b0b2af24704c6eb465665024ea6aaf7699c2Leon Scroggins III SkImageDecoder::PrefConfigTable table; 4382b7b0b2af24704c6eb465665024ea6aaf7699c2Leon Scroggins III table.fPrefFor_8Index_NoAlpha_src = SkBitmap::kIndex8_Config; 4482b7b0b2af24704c6eb465665024ea6aaf7699c2Leon Scroggins III table.fPrefFor_8Index_YesAlpha_src = SkBitmap::kIndex8_Config; 4582b7b0b2af24704c6eb465665024ea6aaf7699c2Leon Scroggins III table.fPrefFor_8Gray_src = SkBitmap::kARGB_8888_Config; 4682b7b0b2af24704c6eb465665024ea6aaf7699c2Leon Scroggins III table.fPrefFor_8bpc_NoAlpha_src = SkBitmap::kARGB_8888_Config; 4782b7b0b2af24704c6eb465665024ea6aaf7699c2Leon Scroggins III table.fPrefFor_8bpc_YesAlpha_src = SkBitmap::kARGB_8888_Config; 4882b7b0b2af24704c6eb465665024ea6aaf7699c2Leon Scroggins III 4947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik mHost->setPrefConfigTable(table); 5047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik } else if (!strcmp("npLb", tag) && length == sizeof(int32_t) * 4) { 5147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik mHasInsets = true; 5247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik memcpy(&mOpticalInsets, data, sizeof(int32_t) * 4); 5377b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik } else if (!strcmp("npOl", tag) && length == 24) { // 4 int32_ts, 1 float, 1 int32_t sized byte 5447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik mHasInsets = true; 5547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik memcpy(&mOutlineInsets, data, sizeof(int32_t) * 4); 5647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik mOutlineRadius = ((const float*)data)[4]; 5777b5cad3efedd20f2b7cc14d87ccce1b0261960aChris Craik mOutlineAlpha = ((const int32_t*)data)[5] & 0xff; 58a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins } 59a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins return true; // keep on decoding 60a06d86ab8177ee9e631e0ee4e39688bf42179bdeLeon Scroggins} 61