#include <iostream>#include <cstdio>Include dependency graph for nm16.cpp:
Go to the source code of this file.
Functions | |
| int | main (int argc, char *argv[]) |
| float * | readRowS16 (istream &in, int width) |
| float | readS16 (istream &in) |
Variables | |
| int | halfKernelSize = 1 |
| int | kernelSize = 2 |
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Definition at line 29 of file nm16.cpp. References halfKernelSize, kernelSize, and readRowS16(). 00030 {
00031 if (argc < 5)
00032 {
00033 cerr << "Usage: nm16 <width> <height> <bumpheight> <filter method>\n";
00034 return 1;
00035 }
00036
00037 int width = 0;
00038 int height = 0;
00039 float bumpheight = 1.0f;
00040 int method = 0;
00041
00042 if (sscanf(argv[1], " %d", &width) != 1 ||
00043 sscanf(argv[2], " %d", &height) != 1)
00044 {
00045 cerr << "Bad image dimensions.\n";
00046 return 1;
00047 }
00048
00049 if (sscanf(argv[3], " %f", &bumpheight) != 1)
00050 {
00051 cerr << "Invalid bump height.\n";
00052 return 1;
00053 }
00054
00055 if (sscanf(argv[4], " %d", &method) != 1)
00056 {
00057 cerr << "Bad filter method.\n";
00058 return 1;
00059 }
00060
00061 // Binary 8-bit grayscale header
00062 // cout << "P5\n";
00063 // Binary 8-bit/channel RGB header
00064 cout << "P6\n";
00065 cout << width << ' ' << height << '\n' << "255\n";
00066
00067 float** samples = new float*[height];
00068
00069 for (int i = 0; i < kernelSize - 1; i++)
00070 samples[i] = readRowS16(cin, width);
00071
00072 for (int y = 0; y < height; y++)
00073 {
00074 // Out with the old . . .
00075 if (y > halfKernelSize)
00076 delete[] samples[y - halfKernelSize - 1];
00077
00078 // . . . and in with the new.
00079 if (y < height - halfKernelSize)
00080 samples[y + halfKernelSize] = readRowS16(cin, width);
00081
00082 for (int x = 0; x < width; x++)
00083 {
00084 #if 0
00085 unsigned char v = (unsigned char) (samples[y][x] * 255.99f);
00086 cout.write((char*) &v, 1);
00087 #endif
00088 float dx;
00089 if (x == width - 1)
00090 dx = samples[y][0] - samples[y][x];
00091 else
00092 dx = samples[y][x + 1] - samples[y][x];
00093
00094 float dy;
00095 if (y == height - 1)
00096 dy = samples[y][x] - samples[y - 1][x];
00097 else
00098 dy = samples[y + 1][x] - samples[y][x];
00099 }
00100 }
00101
00102 return 0;
00103 }
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Definition at line 19 of file nm16.cpp. References readS16(). Referenced by main(). 00020 {
00021 float* row = new float[width];
00022 for (int i = 0; i < width; i++)
00023 row[i] = readS16(in);
00024
00025 return row;
00026 }
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Definition at line 10 of file nm16.cpp. Referenced by readRowS16(). 00011 {
00012 unsigned char c[2];
00013 cin.read((char*) c, 2);
00014
00015 return (((short) c[0] << 8) | c[1]) * (1.0f / 65535.0f);
00016 }
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Definition at line 7 of file nm16.cpp. Referenced by main(). |
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Definition at line 6 of file nm16.cpp. Referenced by main(). |
1.4.1