diff options
| -rw-r--r-- | vdp.cpp | 18 |
1 files changed, 15 insertions, 3 deletions
@@ -141,11 +141,23 @@ bool VDP::Scanline() if (!MODESET2_DISP_GET(mode_set_2)) { return true; } - for (size_t i = 0; i < render_width; i++) { - _rendered_buffer[render_width * _lines_counter + i] = 0xff00ffff; + const uint16_t lines_per_screen = _status.pal_mode ? kLinesPerScreenPAL : kLinesPerScreenNTSC; + if (_lines_counter + 1 == lines_per_screen) { + for (size_t i = 0; i < render_width; i++) { + const size_t color_index = (i * 2) % kCRAMSize; + const uint16_t cram_color = ((_cram[color_index] & 0x1) << 8) | _cram[color_index + 1]; + const uint8_t blue = cram_color & 7; + const uint8_t green = (cram_color >> 3) & 7; + const uint8_t red = (cram_color >> 6) & 7; + const uint32_t color = 0xff000000 | (red << 16) | (green << 8) | blue; + _rendered_buffer[render_width * _lines_counter + i] = color; + } + } else { + for (size_t i = 0; i < render_width; i++) { + _rendered_buffer[render_width * _lines_counter + i] = 0xff000000; + } } _lines_counter++; - const uint16_t lines_per_screen = _status.pal_mode ? kLinesPerScreenPAL : kLinesPerScreenNTSC; if (_lines_counter >= lines_per_screen) { _lines_counter = 0; if (MODESET2_IE0_GET(mode_set_2)) { |