In ResampleEffect, precompute the Lanczos function into a table.

[movit] / fft_input.cpp

diff --git a/fft_input.cpp b/fft_input.cpp
index c88a7c4b12fe9947cc6cd2a43f3b4ff0ba2d6e01..b37d52039b77c7b15aa4a13242af328d6a54d4f2 100644 (file)
--- a/fft_input.cpp
+++ b/fft_input.cpp
@@ -23,6 +23,7 @@ FFTInput::FFTInput(unsigned width, unsigned height)
 {
        register_int("fft_width", &fft_width);
        register_int("fft_height", &fft_height);
 {
        register_int("fft_width", &fft_width);
        register_int("fft_height", &fft_height);

+       register_uniform_sampler2d("tex", &uniform_tex);

 }
 
 FFTInput::~FFTInput()
 }
 
 FFTInput::~FFTInput()


@@ -98,7 +99,7 @@ void FFTInput::set_gl_state(GLuint glsl_program_num, const string& prefix, unsig
        }
 
        // Bind it to a sampler.
        }
 
        // Bind it to a sampler.

-       set_uniform_int(glsl_program_num, prefix, "tex", *sampler_num);
+       uniform_tex = *sampler_num;

        ++*sampler_num;
 }
 
        ++*sampler_num;
 }