bsnes/higan/gb/video/video.cpp

112 lines
2.8 KiB
C++

#include <gb/gb.hpp>
namespace GameBoy {
Video video;
Video::Video() {
output = new uint32[160 * 144];
paletteStandard = new uint32[1 << 15];
paletteEmulation = new uint32[1 << 15];
}
Video::~Video() {
delete[] output;
delete[] paletteStandard;
delete[] paletteEmulation;
}
auto Video::power() -> void {
memory::fill(output, 160 * 144 * sizeof(uint32));
if(system.dmg()) {
for(auto color : range(1 << 2)) {
uint L = image::normalize(3 - color, 2, 8);
uint R = monochrome[color][0] >> 8;
uint G = monochrome[color][1] >> 8;
uint B = monochrome[color][2] >> 8;
paletteStandard[color] = (255 << 24) | (L << 16) | (L << 8) | (L << 0);
paletteEmulation[color] = (255 << 24) | (R << 16) | (G << 8) | (B << 0);
}
}
if(system.sgb()) {
for(auto color : range(1 << 2)) {
paletteStandard[color] = color;
paletteEmulation[color] = color;
}
}
if(system.cgb()) {
for(auto color : range(1 << 15)) {
uint r = (uint5)(color >> 0);
uint g = (uint5)(color >> 5);
uint b = (uint5)(color >> 10);
{ uint R = image::normalize(r, 5, 8);
uint G = image::normalize(g, 5, 8);
uint B = image::normalize(b, 5, 8);
paletteStandard[color] = (255 << 24) | (R << 16) | (G << 8) | (B << 0);
}
{ uint R = (r * 26 + g * 4 + b * 2);
uint G = ( g * 24 + b * 8);
uint B = (r * 6 + g * 4 + b * 22);
R = min(960, R) >> 2;
G = min(960, G) >> 2;
B = min(960, B) >> 2;
paletteEmulation[color] = (255 << 24) | (R << 16) | (G << 8) | (B << 0);
}
}
}
}
auto Video::refresh() -> void {
auto palette = settings.colorEmulation ? paletteEmulation : paletteStandard;
for(uint y = 0; y < 144; y++) {
auto source = ppu.screen + y * 160;
auto target = output + y * 160;
if(settings.blurEmulation) {
for(uint x = 0; x < 160; x++) {
auto a = palette[*source++];
auto b = *target;
*target++ = (a + b - ((a ^ b) & 0x01010101)) >> 1;
}
} else {
for(uint x = 0; x < 160; x++) {
auto color = palette[*source++];
*target++ = color;
}
}
}
interface->videoRefresh(output, 4 * 160, 160, 144);
}
#define DMG_PALETTE_GREEN
//#define DMG_PALETTE_YELLOW
//#define DMG_PALETTE_WHITE
const uint16 Video::monochrome[4][3] = {
#if defined(DMG_PALETTE_GREEN)
{0xaeae, 0xd9d9, 0x2727},
{0x5858, 0xa0a0, 0x2828},
{0x2020, 0x6262, 0x2929},
{0x1a1a, 0x4545, 0x2a2a},
#elif defined(DMG_PALETTE_YELLOW)
{0xffff, 0xf7f7, 0x7b7b},
{0xb5b5, 0xaeae, 0x4a4a},
{0x6b6b, 0x6969, 0x3131},
{0x2121, 0x2020, 0x1010},
#else //DMG_PALETTE_WHITE
{0xffff, 0xffff, 0xffff},
{0xaaaa, 0xaaaa, 0xaaaa},
{0x5555, 0x5555, 0x5555},
{0x0000, 0x0000, 0x0000},
#endif
};
}