mirror of https://github.com/bsnes-emu/bsnes.git
46 lines
1.1 KiB
C++
Executable File
46 lines
1.1 KiB
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*, uint32_t*, unsigned, const uint16_t*, unsigned, unsigned, unsigned);
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};
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dllexport void filter_size(unsigned &width, unsigned &height) {
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width = (width <= 256) ? width * 2 : width;
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height = (height <= 240) ? height * 2 : height;
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}
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dllexport void filter_render(
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uint32_t *colortable, uint32_t *output, unsigned outpitch,
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const uint16_t *input, unsigned pitch, unsigned width, unsigned height
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) {
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pitch >>= 1;
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outpitch >>= 2;
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uint32_t *out0 = output;
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uint32_t *out1 = output + outpitch;
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for(unsigned y = 0; y < height; y++) {
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for(unsigned x = 0; x < width; x++) {
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uint32_t p = colortable[*input++];
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*out0++ = p;
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if(height <= 240) *out1++ = p;
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if(width > 256) continue;
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*out0++ = p;
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if(height <= 240) *out1++ = p;
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}
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input += pitch - width;
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if(height <= 240) {
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out0 += outpitch + outpitch - 512;
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out1 += outpitch + outpitch - 512;
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} else {
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out0 += outpitch - 512;
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}
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}
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}
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