| /* libs/graphics/ports/SkImageDecoder_Factory.cpp |
| ** |
| ** Copyright 2006, 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 "SkImageDecoder.h" |
| #include "SkMovie.h" |
| #include "SkStream.h" |
| |
| extern SkImageDecoder* SkImageDecoder_GIF_Factory(SkStream*); |
| extern SkImageDecoder* SkImageDecoder_BMP_Factory(SkStream*); |
| extern SkImageDecoder* SkImageDecoder_ICO_Factory(SkStream*); |
| extern SkImageDecoder* SkImageDecoder_PNG_Factory(SkStream*); |
| extern SkImageDecoder* SkImageDecoder_WBMP_Factory(SkStream*); |
| extern SkImageDecoder* SkImageDecoder_JPEG_Factory(SkStream*); |
| |
| typedef SkImageDecoder* (*SkImageDecoderFactoryProc)(SkStream*); |
| |
| struct CodecFormat { |
| SkImageDecoderFactoryProc fProc; |
| SkImageDecoder::Format fFormat; |
| }; |
| |
| static const CodecFormat gPairs[] = { |
| { SkImageDecoder_GIF_Factory, SkImageDecoder::kGIF_Format }, |
| { SkImageDecoder_PNG_Factory, SkImageDecoder::kPNG_Format }, |
| { SkImageDecoder_ICO_Factory, SkImageDecoder::kICO_Format }, |
| { SkImageDecoder_WBMP_Factory, SkImageDecoder::kWBMP_Format }, |
| { SkImageDecoder_BMP_Factory, SkImageDecoder::kBMP_Format }, |
| { SkImageDecoder_JPEG_Factory, SkImageDecoder::kJPEG_Format } |
| }; |
| |
| SkImageDecoder* SkImageDecoder::Factory(SkStream* stream) { |
| for (size_t i = 0; i < SK_ARRAY_COUNT(gPairs); i++) { |
| SkImageDecoder* codec = gPairs[i].fProc(stream); |
| stream->rewind(); |
| if (NULL != codec) { |
| return codec; |
| } |
| } |
| return NULL; |
| } |
| |
| bool SkImageDecoder::SupportsFormat(Format format) { |
| for (size_t i = 0; i < SK_ARRAY_COUNT(gPairs); i++) { |
| if (gPairs[i].fFormat == format) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| ///////////////////////////////////////////////////////////////////////// |
| |
| typedef SkMovie* (*SkMovieFactoryProc)(SkStream*); |
| |
| extern SkMovie* SkMovie_GIF_Factory(SkStream*); |
| |
| static const SkMovieFactoryProc gMovieProcs[] = { |
| SkMovie_GIF_Factory |
| }; |
| |
| SkMovie* SkMovie::DecodeStream(SkStream* stream) { |
| for (unsigned i = 0; i < SK_ARRAY_COUNT(gMovieProcs); i++) { |
| SkMovie* movie = gMovieProcs[i](stream); |
| if (NULL != movie) { |
| return movie; |
| } |
| stream->rewind(); |
| } |
| return NULL; |
| } |
| |