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Code Issues Releases Wiki Activity

do not shift viewport pixels on OpenGL

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Ted John
2016-06-05 16:41:35 +01:00
parent a8fed0c4b8
commit 932dec75d0
6 changed files with 43 additions and 5 deletions
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14
src/interface/viewport.c
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@@ -395,7 +395,8 @@ void sub_6E7FF3(rct_window *window, rct_viewport *viewport, int x, int y)
}
}
void sub_6E7F34(rct_window* w, rct_viewport* viewport, sint16 x_diff, sint16 y_diff){
void viewport_shift_pixels(rct_window* w, rct_viewport* viewport, sint16 x_diff, sint16 y_diff)
{
rct_window* orignal_w = w;
int left = 0, right = 0, top = 0, bottom = 0;
@@ -430,7 +431,8 @@ void sub_6E7F34(rct_window* w, rct_viewport* viewport, sint16 x_diff, sint16 y_d
sub_6E7FF3(w, viewport, x_diff, y_diff);
}
void sub_6E7DE1(sint16 x, sint16 y, rct_window* w, rct_viewport* viewport){
void viewport_move(sint16 x, sint16 y, rct_window* w, rct_viewport* viewport)
{
uint8 zoom = (1 << viewport->zoom);
// Note: do not do the subtraction and then divide!
@@ -497,7 +499,9 @@ void sub_6E7DE1(sint16 x, sint16 y, rct_window* w, rct_viewport* viewport){
return;
}
sub_6E7F34(w, viewport, x_diff, y_diff);
if (drawing_engine_has_dirty_optimisations()) {
viewport_shift_pixels(w, viewport, x_diff, y_diff);
}
memcpy(viewport, &view_copy, sizeof(rct_viewport));
}
@@ -625,7 +629,7 @@ void viewport_update_position(rct_window *window)
y += viewport->view_y;
}
sub_6E7DE1(x, y, window, viewport);
viewport_move(x, y, window, viewport);
}
void viewport_update_sprite_follow(rct_window *window)
@@ -641,7 +645,7 @@ void viewport_update_sprite_follow(rct_window *window)
int center_x, center_y;
center_2d_coordinates(sprite->unknown.x, sprite->unknown.y, sprite->unknown.z, &center_x, &center_y, window->viewport);
sub_6E7DE1(center_x, center_y, window, window->viewport);
viewport_move(center_x, center_y, window, window->viewport);
}
}