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Corrects tile plotting window and eliminates a redundant local.

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This commit is contained in:
Thomas Harte 2018-10-08 22:56:31 -04:00
parent e410302237
commit 7a74fe2ff7
1 changed files with 5 additions and 4 deletions
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9
Components/9918/9918.cpp
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@ -715,7 +715,6 @@ void Base::draw_tms_text(int start, int end) {
void Base::draw_sms(int start, int end) { void Base::draw_sms(int start, int end) {
int colour_buffer[256]; int colour_buffer[256];
const bool is_end = end == 256;
/* /*
Add extra border for any pixels that fall before the fine scroll. Add extra border for any pixels that fall before the fine scroll.
@ -725,8 +724,10 @@ void Base::draw_sms(int start, int end) {
for(int c = start; c < (master_system_.horizontal_scroll & 7); ++c) { for(int c = start; c < (master_system_.horizontal_scroll & 7); ++c) {
colour_buffer[c] = 16 + background_colour_; colour_buffer[c] = 16 + background_colour_;
} }
tile_start -= master_system_.horizontal_scroll & 7;
tile_end -= master_system_.horizontal_scroll & 7; // Remove the border area from that to which tiles will be drawn.
tile_start = std::max(start - (master_system_.horizontal_scroll & 7), 0);
tile_end = std::max(end - (master_system_.horizontal_scroll & 7), 0);
} }
@ -838,7 +839,7 @@ void Base::draw_sms(int start, int end) {
// If the VDP is set to hide the left column and this is the final call that'll come // If the VDP is set to hide the left column and this is the final call that'll come
// this line, hide it. // this line, hide it.
if(is_end) { if(end == 256) {
if(master_system_.hide_left_column) { if(master_system_.hide_left_column) {
pixel_origin_[0] = pixel_origin_[1] = pixel_origin_[2] = pixel_origin_[3] = pixel_origin_[0] = pixel_origin_[1] = pixel_origin_[2] = pixel_origin_[3] =
pixel_origin_[4] = pixel_origin_[5] = pixel_origin_[6] = pixel_origin_[7] = pixel_origin_[4] = pixel_origin_[5] = pixel_origin_[6] = pixel_origin_[7] =