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igl/external/embree/tutorials/common/image/tga.cpp
T

55 lines
2.3 KiB
C++
Executable File

// ======================================================================== //
// Copyright 2009-2014 Intel Corporation //
// //
// 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 "image/image.h"
#include <cstdio>
namespace embree
{
inline void fwrite_uchar (unsigned char v, FILE* file) { fwrite(&v, sizeof(v), 1, file); }
inline void fwrite_ushort(unsigned short v, FILE* file) { fwrite(&v, sizeof(v), 1, file); }
void storeTga(const Ref<Image>& img, const FileName& fileName)
{
FILE* file = fopen(fileName.c_str(), "wb");
if (!file) THROW_RUNTIME_ERROR("error opening file " + fileName.str());
fwrite_uchar(0x00, file);
fwrite_uchar(0x00, file);
fwrite_uchar(0x02, file);
fwrite_ushort(0x0000, file);
fwrite_ushort(0x0000, file);
fwrite_ushort(0x0000, file);
fwrite_ushort(0x0000, file);
fwrite_uchar(0x00, file);
fwrite_ushort((unsigned short)img->width , file);
fwrite_ushort((unsigned short)img->height, file);
fwrite_uchar(0x18, file);
fwrite_uchar(0x20, file);
for (size_t y=0; y<img->height; y++) {
for (size_t x=0; x<img->width; x++) {
Color c = img->get(x,y);
fwrite_uchar((unsigned char)(clamp(c.b)*255.0f), file);
fwrite_uchar((unsigned char)(clamp(c.g)*255.0f), file);
fwrite_uchar((unsigned char)(clamp(c.r)*255.0f), file);
}
}
fclose(file);
}
}