drewcassidy/nvidia-texture-tools
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Add nvzoom tool.

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This commit is contained in:
castano 2007-12-03 08:35:03 +00:00
parent 067f3abf54
commit 2fec3e7695
1 changed files with 49 additions and 16 deletions
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65
src/nvtt/tools/resize.cpp
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@ -72,9 +72,11 @@ int main(int argc, char *argv[])
MyMessageHandler messageHandler;
float scale = 0.5f;
float gamma = 2.2f;
nv::Filter * filter = NULL;
nv::Path input;
nv::Path output;
// Parse arguments.
for (int i = 1; i < argc; i++)
{
@ -86,6 +88,29 @@ int main(int argc, char *argv[])
i++;
}
}
else if (strcmp("-g", argv[i]) == 0)
{
if (i+1 < argc && argv[i+1][0] != '-') {
gamma = atof(argv[i+1]);
i++;
}
}
else if (strcmp("-f", argv[i]) == 0)
{
if (i+1 == argc) break;
i++;
if (strcmp("box", argv[i]) == 0) filter = new nv::BoxFilter();
else if (strcmp("triangle", argv[i]) == 0) filter = new nv::TriangleFilter();
else if (strcmp("quadratic", argv[i]) == 0) filter = new nv::QuadraticFilter();
else if (strcmp("bspline", argv[i]) == 0) filter = new nv::BSplineFilter();
else if (strcmp("mitchell", argv[i]) == 0) filter = new nv::MitchellFilter();
else if (strcmp("lanczos", argv[i]) == 0) filter = new nv::LanczosFilter();
else if (strcmp("kaiser", argv[i]) == 0) {
filter = new nv::KaiserFilter(5);
((nv::KaiserFilter *)filter)->setParameters(4.0f, 1.0f);
}
}
else if (argv[i][0] != '-')
{
input = argv[i];
@ -102,34 +127,42 @@ int main(int argc, char *argv[])
{
printf("NVIDIA Texture Tools - Copyright NVIDIA Corporation 2007\n\n");
printf("usage: resize [options] input [output]\n\n");
printf("usage: nvzoom [options] input [output]\n\n");
printf("Diff options:\n");
printf(" -s scale \tScale factor (default = 0.5).\n");
printf("Options:\n");
printf(" -s scale Scale factor (default = 0.5)\n");
printf(" -g gamma Gamma correction (default = 2.2)\n");
printf(" -f filter One of the following: (default = 'box')\n");
printf(" * box\n");
printf(" * triangle\n");
printf(" * quadratic\n");
printf(" * bspline\n");
printf(" * mitchell\n");
printf(" * lanczos\n");
printf(" * kaiser\n");
return 1;
}
if (filter == NULL)
{
filter = new nv::BoxFilter();
}
nv::Image image;
if (!loadImage(image, input)) return 0;
nv::FloatImage fimage(&image);
// fimage.toLinear(0, 3);
fimage.toLinear(0, 3, gamma);
// nv::AutoPtr<nv::FloatImage> fresult(fimage.fastDownSample());
nv::AutoPtr<nv::FloatImage> fresult(fimage.downSample(*filter, image.width() * scale, image.height() * scale, nv::FloatImage::WrapMode_Mirror));
// nv::Kernel1 k(10);
// k.initKaiser(4, scale, 20);
// nv::AutoPtr<nv::FloatImage> fresult(fimage.downSample(k, image.width() * scale, image.height() * scale, nv::FloatImage::WrapMode_Clamp));
nv::BoxFilter filter;
nv::AutoPtr<nv::FloatImage> fresult(fimage.downSample(filter, image.width() * scale, image.height() * scale, nv::FloatImage::WrapMode_Mirror));
nv::AutoPtr<nv::Image> result(fresult->createImageGammaCorrect(1.0));
nv::AutoPtr<nv::Image> result(fresult->createImageGammaCorrect(gamma));
nv::StdOutputStream stream(output);
nv::ImageIO::saveTGA(stream, result.ptr());
nv::ImageIO::saveTGA(stream, result.ptr()); // @@ Add generic save function. Add support for png too.
delete filter;
return 0;
}