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#ifdef SYSTEM_CPP
Video video;
void Video::generate_palette(Emulator::Interface::PaletteMode mode) {
for(unsigned color = 0; color < (1 << 19); color++) {
if(mode == Emulator::Interface::PaletteMode::Literal) {
palette[color] = color;
continue;
}
unsigned l = (color >> 15) & 15;
unsigned b = (color >> 10) & 31;
unsigned g = (color >> 5) & 31;
unsigned r = (color >> 0) & 31;
if(mode == Emulator::Interface::PaletteMode::Channel) {
l = image::normalize(l, 4, 16);
r = image::normalize(r, 5, 16);
g = image::normalize(g, 5, 16);
b = image::normalize(b, 5, 16);
palette[color] = interface->videoColor(color, l, r, g, b);
continue;
}
if(mode == Emulator::Interface::PaletteMode::Emulation) {
r = gamma_ramp[r];
g = gamma_ramp[g];
b = gamma_ramp[b];
} else {
r = image::normalize(r, 5, 8);
g = image::normalize(g, 5, 8);
b = image::normalize(b, 5, 8);
}
double L = (1.0 + l) / 16.0;
if(l == 0) L *= 0.5;
unsigned R = L * image::normalize(r, 8, 16);
unsigned G = L * image::normalize(g, 8, 16);
unsigned B = L * image::normalize(b, 8, 16);
palette[color] = interface->videoColor(color, 0, R, G, B);
}
}
Video::Video() {
palette = new uint32_t[1 << 19]();
}
Video::~Video() {
delete[] palette;
}
//internal
const uint8_t Video::gamma_ramp[32] = {
0x00, 0x01, 0x03, 0x06, 0x0a, 0x0f, 0x15, 0x1c,
0x24, 0x2d, 0x37, 0x42, 0x4e, 0x5b, 0x69, 0x78,
0x88, 0x90, 0x98, 0xa0, 0xa8, 0xb0, 0xb8, 0xc0,
0xc8, 0xd0, 0xd8, 0xe0, 0xe8, 0xf0, 0xf8, 0xff,
};
const uint8_t Video::cursor[15 * 15] = {
0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,
0,0,0,0,1,1,2,2,2,1,1,0,0,0,0,
0,0,0,1,2,2,1,2,1,2,2,1,0,0,0,
0,0,1,2,1,1,0,1,0,1,1,2,1,0,0,
0,1,2,1,0,0,0,1,0,0,0,1,2,1,0,
0,1,2,1,0,0,1,2,1,0,0,1,2,1,0,
1,2,1,0,0,1,1,2,1,1,0,0,1,2,1,
1,2,2,1,1,2,2,2,2,2,1,1,2,2,1,
1,2,1,0,0,1,1,2,1,1,0,0,1,2,1,
0,1,2,1,0,0,1,2,1,0,0,1,2,1,0,
0,1,2,1,0,0,0,1,0,0,0,1,2,1,0,
0,0,1,2,1,1,0,1,0,1,1,2,1,0,0,
0,0,0,1,2,2,1,2,1,2,2,1,0,0,0,
0,0,0,0,1,1,2,2,2,1,1,0,0,0,0,
0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,
};
void Video::draw_cursor(uint16_t color, int x, int y) {
uint32_t* data = (uint32_t*)ppu.output;
if(ppu.interlace() && ppu.field()) data += 512;
for(int cy = 0; cy < 15; cy++) {
int vy = y + cy - 7;
if(vy <= 0 || vy >= 240) continue; //do not draw offscreen
bool hires = (line_width[vy] == 512);
for(int cx = 0; cx < 15; cx++) {
int vx = x + cx - 7;
if(vx < 0 || vx >= 256) continue; //do not draw offscreen
uint8_t pixel = cursor[cy * 15 + cx];
if(pixel == 0) continue;
uint32_t pixelcolor = (15 << 15) | ((pixel == 1) ? 0 : color);
if(hires == false) {
*((uint32_t*)data + vy * 1024 + vx) = palette[pixelcolor];
} else {
*((uint32_t*)data + vy * 1024 + vx * 2 + 0) = palette[pixelcolor];
*((uint32_t*)data + vy * 1024 + vx * 2 + 1) = palette[pixelcolor];
}
}
}
}
void Video::update() {
switch(configuration.controller_port2) {
case Input::Device::SuperScope:
if(dynamic_cast<SuperScope*>(input.port2)) {
SuperScope &device = (SuperScope&)*input.port2;
draw_cursor(0x7c00, device.x, device.y);
}
break;
case Input::Device::Justifier:
case Input::Device::Justifiers:
if(dynamic_cast<Justifier*>(input.port2)) {
Justifier &device = (Justifier&)*input.port2;
draw_cursor(0x001f, device.player1.x, device.player1.y);
if(device.chained == false) break;
draw_cursor(0x02e0, device.player2.x, device.player2.y);
}
break;
}
uint32_t* data = (uint32_t*)ppu.output;
if(ppu.interlace() && ppu.field()) data += 512;
if(hires) {
//normalize line widths
for(unsigned y = 0; y < 240; y++) {
if(line_width[y] == 512) continue;
uint32_t *buffer = data + y * 1024;
for(signed x = 255; x >= 0; x--) {
buffer[(x * 2) + 0] = buffer[(x * 2) + 1] = buffer[x];
}
}
}
//overscan: when disabled, shift image down (by scrolling video buffer up) to center image onscreen
//(memory before ppu.output is filled with black scanlines)
interface->videoRefresh(
video.palette,
ppu.output - (ppu.overscan() ? 0 : 7 * 1024),
4 * (1024 >> ppu.interlace()),
256 << hires,
240 << ppu.interlace()
);
hires = false;
}
void Video::scanline() {
unsigned y = cpu.vcounter();
if(y >= 240) return;
hires |= ppu.hires();
unsigned width = (ppu.hires() == false ? 256 : 512);
line_width[y] = width;
}
void Video::init() {
hires = false;
for(auto& n : line_width) n = 256;
}
#endif
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