mirror of https://github.com/bsnes-emu/bsnes.git
52 lines
1.5 KiB
C++
Executable File
52 lines
1.5 KiB
C++
Executable File
#include <nall/platform.hpp>
|
|
#include <nall/stdint.hpp>
|
|
using namespace nall;
|
|
|
|
extern "C" {
|
|
void filter_size(unsigned&, unsigned&);
|
|
void filter_render(uint16_t*, unsigned, const uint16_t*, unsigned, unsigned, unsigned);
|
|
};
|
|
|
|
dllexport void filter_size(unsigned &width, unsigned &height) {
|
|
width *= 2;
|
|
height *= 2;
|
|
}
|
|
|
|
dllexport void filter_render(
|
|
uint16_t *output, unsigned outputPitch,
|
|
const uint16_t *input, unsigned inputPitch,
|
|
unsigned width, unsigned height
|
|
) {
|
|
outputPitch >>= 1, inputPitch >>= 1;
|
|
|
|
#pragma omp parallel for
|
|
for(unsigned y = 0; y < height; y++) {
|
|
const uint16_t *in = input + y * inputPitch;
|
|
uint16_t *out0 = output + y * outputPitch * 2;
|
|
uint16_t *out1 = output + y * outputPitch * 2 + outputPitch;
|
|
|
|
int prevline = (y == 0 ? 0 : inputPitch);
|
|
int nextline = (y == height - 1 ? 0 : inputPitch);
|
|
|
|
for(unsigned x = 0; x < width; x++) {
|
|
uint16_t A = *(input - prevline);
|
|
uint16_t B = (x > 0) ? *(input - 1) : *input;
|
|
uint16_t C = *input;
|
|
uint16_t D = (x < width - 1) ? *(input + 1) : *input;
|
|
uint16_t E = *(input++ + nextline);
|
|
|
|
if(A != E && B != D) {
|
|
*out0++ = (A == B ? C + A - ((C ^ A) & 0x0421) >> 1 : C);
|
|
*out0++ = (A == D ? C + A - ((C ^ A) & 0x0421) >> 1 : C);
|
|
*out1++ = (E == B ? C + E - ((C ^ E) & 0x0421) >> 1 : C);
|
|
*out1++ = (E == D ? C + E - ((C ^ E) & 0x0421) >> 1 : C);
|
|
} else {
|
|
*out0++ = C;
|
|
*out0++ = C;
|
|
*out1++ = C;
|
|
*out1++ = C;
|
|
}
|
|
}
|
|
}
|
|
}
|