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Implements known phase pattern for PAL output.

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This commit is contained in:
Thomas Harte 2016-08-17 08:09:48 -04:00
parent 2935848f35
commit 902c0f967a
1 changed files with 11 additions and 7 deletions
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18
Components/6560/6560.hpp
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@ -48,7 +48,8 @@ template <class T> class MOS6560 {
_horizontal_counter(0),
_vertical_counter(0),
_cycles_since_speaker_update(0),
_is_odd_frame(false)
_is_odd_frame(false),
_is_odd_line(false)
{
_crt->set_composite_sampling_function(
"float composite_sample(usampler2D texID, vec2 coordinate, vec2 iCoordinate, float phase, float amplitude)"
@ -82,6 +83,7 @@ template <class T> class MOS6560 {
*/
void set_output_mode(OutputMode output_mode)
{
_output_mode = output_mode;
uint8_t luminances[16] = { // range is 0–4
0, 4, 1, 3, 2, 2, 1, 3,
2, 1, 2, 1, 2, 3, 2, 3
@ -160,6 +162,7 @@ template <class T> class MOS6560 {
}
_horizontal_counter = 0;
if(_output_mode == OutputMode::PAL) _is_odd_line ^= true;
_horizontal_drawing_latch = false;
_vertical_counter ++;
@ -168,7 +171,7 @@ template <class T> class MOS6560 {
_vertical_counter = 0;
_full_frame_counter = 0;
_is_odd_frame ^= true;
if(_output_mode == OutputMode::NTSC) _is_odd_frame ^= true;
_current_row = 0;
_rows_this_field = -1;
_vertical_drawing_latch = false;
@ -250,10 +253,10 @@ template <class T> class MOS6560 {
{
switch(_output_state)
{
case State::Sync: _crt->output_sync(_cycles_in_state * 4); break;
case State::ColourBurst: _crt->output_colour_burst(_cycles_in_state * 4, _is_odd_frame ? 128 : 0, 0); break;
case State::Border: output_border(_cycles_in_state * 4); break;
case State::Pixels: _crt->output_data(_cycles_in_state * 4, 1); break;
case State::Sync: _crt->output_sync(_cycles_in_state * 4); break;
case State::ColourBurst: _crt->output_colour_burst(_cycles_in_state * 4, (_is_odd_frame || _is_odd_line) ? 128 : 0, 0); break;
case State::Border: output_border(_cycles_in_state * 4); break;
case State::Pixels: _crt->output_data(_cycles_in_state * 4, 1); break;
}
_output_state = _this_state;
_cycles_in_state = 0;
@ -456,7 +459,7 @@ template <class T> class MOS6560 {
// data latched from the bus
uint8_t _character_code, _character_colour, _character_value;
bool _is_odd_frame;
bool _is_odd_frame, _is_odd_line;
// lookup table from 6560 colour index to appropriate PAL/NTSC value
uint8_t _colours[16];
@ -475,6 +478,7 @@ template <class T> class MOS6560 {
int lines_per_progressive_field;
bool supports_interlacing;
} _timing;
OutputMode _output_mode;
};
}