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Add column duplication, switch to green.

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This commit is contained in:
Thomas Harte 2023-11-23 15:18:28 -05:00
parent d92d0e87ac
commit 505df78108
1 changed files with 8 additions and 5 deletions
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13
Machines/PCCompatible/PCCompatible.cpp
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@ -88,7 +88,7 @@ class MDA {
private:
struct CRTCOutputter {
CRTCOutputter() :
crt(882, 9, 382, 3, Outputs::Display::InputDataType::Luminance8)
crt(882, 9, 382, 3, Outputs::Display::InputDataType::Red2Green2Blue2)
{
// crt.set_visible_area(Outputs::Display::Rect(0.1072f, 0.1f, 0.842105263157895f, 0.842105263157895f));
crt.set_display_type(Outputs::Display::DisplayType::RGB);
@ -136,6 +136,9 @@ class MDA {
const uint8_t glyph = ram[((state.refresh_address << 1) + 0) & 0xfff];
uint8_t row = font[(glyph * 14) + state.row_address];
const uint8_t intensity = (attributes & 0x08) ? 0x0d : 0x09;
uint8_t blank = 0;
// Handle irregular attributes.
// Cf. http://www.seasip.info/VintagePC/mda.html#memmap
switch(attributes) {
@ -144,15 +147,15 @@ class MDA {
break;
case 0x70: case 0x78: case 0xf0: case 0xf8:
row ^= 0xff;
blank = intensity;
break;
}
const uint8_t intensity = (attributes & 0x08) ? 0xff : 0xc0;
// Apply underline.
if(((attributes & 7) == 1) && state.row_address == 13) {
// Draw as underline.
std::fill(pixel_pointer, pixel_pointer + 9, intensity);
} else {
// Draw according to ROM contents, possibly duplicating final column.
pixel_pointer[0] = (row & 0x80) ? intensity : 0;
pixel_pointer[1] = (row & 0x40) ? intensity : 0;
pixel_pointer[2] = (row & 0x20) ? intensity : 0;
@ -161,7 +164,7 @@ class MDA {
pixel_pointer[5] = (row & 0x04) ? intensity : 0;
pixel_pointer[6] = (row & 0x02) ? intensity : 0;
pixel_pointer[7] = (row & 0x01) ? intensity : 0;
pixel_pointer[8] = 0; // TODO.
pixel_pointer[8] = (glyph >= 0xc0 && glyph < 0xe0) ? pixel_pointer[7] : blank;
}
pixel_pointer += 9;
}