mirror of
https://github.com/libretro/bsnes-libretro.git
synced 2024-11-30 04:20:32 +00:00
d87a0f633d
byuu says:
- bsnes: added video filters from bsnes v082
- bsnes: added ZSNES snow effect option when games paused or unloaded
(no, I'm not joking)
- bsnes: added 7-zip support (LZMA 19.00 SDK)
[Recent higan WIPs have also mentioned bsnes changes, although the higan code
no longer includes the bsnes code. These changes include:
- higan, bsnes: added EXLOROM, EXLOROM-RAM, EXHIROM mappings
- higan, bsnes: focus the viewport after leaving fullscreen exclusive
mode
- bsnes: re-added mightymo's cheat code database
- bsnes: improved make install rules for the game and cheat code
databases
- bsnes: delayed construction of hiro::Window objects to properly show
bsnes window icons
- Ed.]
47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
namespace Filter::Scale2x {
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auto size(uint& width, uint& height) -> void {
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width *= 2;
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height *= 2;
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}
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auto render(
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uint32_t* colortable, uint32_t* output, uint outpitch,
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const uint16_t* input, uint pitch, uint width, uint height
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) -> void {
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pitch >>= 1;
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outpitch >>= 2;
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for(uint y = 0; y < height; y++) {
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const uint16_t* in = input + y * pitch;
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uint32_t* out0 = output + y * outpitch * 2;
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uint32_t* out1 = output + y * outpitch * 2 + outpitch;
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int prevline = (y == 0 ? 0 : pitch);
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int nextline = (y == height - 1 ? 0 : pitch);
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for(unsigned x = 0; x < width; x++) {
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uint16_t A = *(in - prevline);
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uint16_t B = (x > 0) ? *(in - 1) : *in;
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uint16_t C = *in;
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uint16_t D = (x < width - 1) ? *(in + 1) : *in;
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uint16_t E = *(in++ + nextline);
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uint32_t c = colortable[C];
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if(A != E && B != D) {
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*out0++ = (A == B ? colortable[A] : c);
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*out0++ = (A == D ? colortable[A] : c);
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*out1++ = (E == B ? colortable[E] : c);
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*out1++ = (E == D ? colortable[E] : c);
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} else {
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*out0++ = c;
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*out0++ = c;
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*out1++ = c;
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*out1++ = c;
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}
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}
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}
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}
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}
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