mirror of https://github.com/bsnes-emu/bsnes.git
34 lines
924 B
C++
Executable File
34 lines
924 B
C++
Executable File
#include <nall/platform.hpp>
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#include <nall/stdint.hpp>
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using namespace nall;
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extern "C" {
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void filter_size(unsigned&, unsigned&);
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void filter_render(uint32_t*, unsigned, const uint32_t*, unsigned, unsigned, unsigned);
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};
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dllexport void filter_size(unsigned &width, unsigned &height) {
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height *= 2;
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}
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dllexport void filter_render(
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uint32_t *output, unsigned outputPitch,
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const uint32_t *input, unsigned inputPitch,
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unsigned width, unsigned height
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) {
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enum : unsigned { Mask = (1022 << 20) | (1022 << 10) | (1022 << 0) };
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outputPitch >>= 2, inputPitch >>= 2;
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#pragma omp parallel for
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for(unsigned y = 0; y < height; y++) {
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const uint32_t *in = input + y * inputPitch;
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uint32_t *out0 = output + y * outputPitch * 2;
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uint32_t *out1 = output + y * outputPitch * 2 + outputPitch;
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for(unsigned x = 0; x < width; x++) {
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*out0++ = *in;
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*out1++ = (*in++ & Mask) >> 1;
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}
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}
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}
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