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Ensures real-time output of all areas, to ensure proper palette response.

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This commit is contained in:
Thomas Harte 2018-10-02 21:18:28 -04:00
parent 5361120353
commit 1dd5272190
1 changed files with 26 additions and 23 deletions
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49
Components/9918/9918.cpp
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@ -204,6 +204,15 @@ void TMS9918::run_for(const HalfCycles cycles) {
// Output video stream.
// --------------------
#define intersect(left, right, code) \
{ \
const int start = std::max(column_, left); \
const int end = std::min(end_column, right); \
if(end > start) {\
code;\
}\
}
if(line_mode_ == LineMode::Refresh) {
if(row_ >= mode_timing_.first_vsync_line && row_ < mode_timing_.first_vsync_line+4) {
// Vertical sync.
@ -212,9 +221,7 @@ void TMS9918::run_for(const HalfCycles cycles) {
}
} else {
// Right border.
if(column_ < 15 && end_column >= 15) {
output_border(15);
}
intersect(0, 15, output_border(end - start));
// Blanking region.
if(column_ < 73 && end_column >= 73) {
@ -226,15 +233,11 @@ void TMS9918::run_for(const HalfCycles cycles) {
}
// Most of line.
if(end_column == 342) {
output_border(342 - 73);
}
intersect(73, 342, output_border(end - start));
}
} else {
// Right border.
if(column_ < 15 && end_column >= 15) {
output_border(15);
}
intersect(0, 15, output_border(end - start));
// Blanking region.
if(column_ < 73 && end_column >= 73) {
@ -246,16 +249,16 @@ void TMS9918::run_for(const HalfCycles cycles) {
}
// Left border.
if(column_ < mode_timing_.first_pixel_output_column && end_column >= mode_timing_.first_pixel_output_column) {
output_border(mode_timing_.first_pixel_output_column - 73);
}
intersect(73, mode_timing_.first_pixel_output_column, output_border(end - start));
// In pixel area:
const int pixel_start = std::max(column_, mode_timing_.first_pixel_output_column);
const int pixel_end = std::min(end_column, mode_timing_.next_border_column);
// if(end_column == 342) {
if(pixel_end > pixel_start) {
crt_->output_blank((pixel_end - pixel_start)*4);
intersect(mode_timing_.first_pixel_output_column, mode_timing_.next_border_column,
crt_->output_blank((end - start)*4);
);
// const int pixel_start = std::max(column_, mode_timing_.first_pixel_output_column);
// const int pixel_end = std::min(end_column, mode_timing_.next_border_column);
// if(pixel_end > pixel_start) {
// crt_->output_blank((pixel_end - pixel_start)*4);
// switch(screen_mode_) {
// case ScreenMode::Text:
// draw_tms_text();
@ -272,15 +275,15 @@ void TMS9918::run_for(const HalfCycles cycles) {
//
// default: break;
// }
}
// }
// Additional right border, if called for.
if(mode_timing_.next_border_column != 342 && end_column == 342) {
output_border(342 - mode_timing_.next_border_column);
}
// }
// Additional right border, if called for.
if(mode_timing_.next_border_column != 342) {
intersect(mode_timing_.next_border_column, 342, output_border(end - start));
}
}
#undef intersect
column_ = end_column; // column_ is now the column that has been reached in this line.
int_cycles -= cycles_left; // Count down duration to run for.