1 // Copyright (c) 2021 OPEN CASCADE SAS
3 // This file is part of the examples of the Open CASCADE Technology software library.
5 // Permission is hereby granted, free of charge, to any person obtaining a copy
6 // of this software and associated documentation files (the "Software"), to deal
7 // in the Software without restriction, including without limitation the rights
8 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 // copies of the Software, and to permit persons to whom the Software is
10 // furnished to do so, subject to the following conditions:
12 // The above copyright notice and this permission notice shall be included in all
13 // copies or substantial portions of the Software.
15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
22 #include "WasmOcctPixMap.h"
24 #include <Message.hxx>
26 #include <emscripten.h>
28 // ================================================================
29 // Function : WasmOcctPixMap
31 // ================================================================
32 WasmOcctPixMap::WasmOcctPixMap()
33 : myRawDataPtr (nullptr) {}
35 // ================================================================
36 // Function : ~WasmOcctPixMap
38 // ================================================================
39 WasmOcctPixMap::~WasmOcctPixMap()
44 // ================================================================
47 // ================================================================
48 void WasmOcctPixMap::Clear()
50 if (myRawDataPtr != nullptr) { free (myRawDataPtr); }
51 myRawDataPtr = nullptr;
52 Image_PixMap::Clear();
55 // ================================================================
58 // ================================================================
59 bool WasmOcctPixMap::Init (const char* theFilePath)
62 int aSizeX = 0, aSizeY = 0;
63 char* anImgData = emscripten_get_preloaded_image_data (theFilePath, &aSizeX, &aSizeY);
64 if (anImgData == nullptr)
66 Message::DefaultMessenger()->Send (TCollection_AsciiString("Error: invalid image ") + theFilePath, Message_Fail);
70 Message::DefaultMessenger()->Send (TCollection_AsciiString("Loaded image ") + theFilePath + "@" + aSizeX + "x" + aSizeY, Message_Info);
71 InitWrapper (Image_Format_RGBA, (Standard_Byte* )anImgData, aSizeX, aSizeY);
73 myRawDataPtr = anImgData;