1 /**************************************************************************
3 * Copyright 2011 Jose Fonseca
4 * Copyright 2008-2010 VMware, Inc.
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 **************************************************************************/
55 uint32_t biCompression;
57 int32_t biXPelsPerMeter;
58 int32_t biYPelsPerMeter;
60 uint32_t biClrImportant;
72 Image::writeBMP(const char *filename) const {
73 assert(channels == 4);
75 struct FileHeader bmfh;
76 struct InfoHeader bmih;
80 bmfh.bfSize = 14 + 40 + height*width*4;
83 bmfh.bfOffBits = 14 + 40;
87 bmih.biHeight = height;
90 bmih.biCompression = 0;
91 bmih.biSizeImage = height*width*4;
92 bmih.biXPelsPerMeter = 0;
93 bmih.biYPelsPerMeter = 0;
95 bmih.biClrImportant = 0;
97 std::ofstream stream(filename, std::ofstream::binary);
103 stream.write((const char *)&bmfh, 14);
104 stream.write((const char *)&bmih, 40);
106 unsigned stride = width*4;
109 for (y = 0; y < height; ++y) {
110 const unsigned char *ptr = pixels + y * stride;
111 for (x = 0; x < width; ++x) {
113 pixel.rgbRed = ptr[x*4 + 0];
114 pixel.rgbGreen = ptr[x*4 + 1];
115 pixel.rgbBlue = ptr[x*4 + 2];
116 pixel.rgbAlpha = ptr[x*4 + 3];
117 stream.write((const char *)&pixel, 4);
123 const unsigned char *ptr = pixels + y * stride;
124 for (x = 0; x < width; ++x) {
126 pixel.rgbRed = ptr[x*4 + 0];
127 pixel.rgbGreen = ptr[x*4 + 1];
128 pixel.rgbBlue = ptr[x*4 + 2];
129 pixel.rgbAlpha = ptr[x*4 + 3];
130 stream.write((const char *)&pixel, 4);
141 } /* namespace image */