bsnes/gb/video/video.cpp

95 lines
2.4 KiB
C++

#include <gb/gb.hpp>
#define VIDEO_CPP
namespace GameBoy {
Video video;
void Video::generate_palette(Emulator::Interface::PaletteMode mode) {
this->mode = mode;
if(system.dmg()) for(unsigned n = 0; n < 4; n++) palette[n] = palette_dmg(n);
if(system.sgb()) for(unsigned n = 0; n < 4; n++) palette[n] = palette_sgb(n);
if(system.cgb()) for(unsigned n = 0; n < (1 << 15); n++) palette[n] = palette_cgb(n);
}
Video::Video() {
palette = new uint32_t[1 << 15]();
}
Video::~Video() {
delete[] palette;
}
unsigned Video::palette_dmg(unsigned color) const {
if(mode == Emulator::Interface::PaletteMode::None) return color;
if(mode == Emulator::Interface::PaletteMode::Standard) {
unsigned L = (3 - color) * 21845;
return interface->videoColor(color, L, L, L);
}
unsigned R = monochrome[color][0];
unsigned G = monochrome[color][1];
unsigned B = monochrome[color][2];
return interface->videoColor(color, R, G, B);
}
unsigned Video::palette_sgb(unsigned color) const {
return color;
}
unsigned Video::palette_cgb(unsigned color) const {
if(mode == Emulator::Interface::PaletteMode::None) return color;
unsigned r = (color >> 0) & 31;
unsigned g = (color >> 5) & 31;
unsigned b = (color >> 10) & 31;
if(mode == Emulator::Interface::PaletteMode::Standard) {
unsigned R = (r << 11) | (r << 6) | (r << 1) | (r >> 4);
unsigned G = (g << 11) | (g << 6) | (g << 1) | (g >> 4);
unsigned B = (b << 11) | (b << 6) | (b << 1) | (b >> 4);
return interface->videoColor(color, R, G, B);
}
unsigned R = (r * 26 + g * 4 + b * 2);
unsigned G = ( g * 24 + b * 8);
unsigned B = (r * 6 + g * 4 + b * 22);
R = min(960, R);
G = min(960, G);
B = min(960, B);
R = R << 6 | R >> 4;
G = G << 6 | G >> 4;
B = B << 6 | B >> 4;
return interface->videoColor(color, R, G, B);
}
#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
};
}