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Merge pull request #220 from adrian17/master

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Reworked viewport_render()
This commit is contained in:
Ted John
2014-07-22 07:28:54 +01:00
parent e474dfb3e3 3b6c0d4bbc
commit c71e825a85
1 changed files with 16 additions and 45 deletions
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61
src/viewport.c
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@@ -228,58 +228,29 @@ void viewport_render(rct_drawpixelinfo *dpi, rct_viewport *viewport, int left, i
if (left >= viewport->x + viewport->width )return;
if (top >= viewport->y + viewport->height )return;
//ax
int x_end = left;
left = max(left - viewport->x, 0);
right = min(right - viewport->x, viewport->width);
top = max(top - viewport->y, 0);
bottom = min(bottom - viewport->y, viewport->height);
if (left < viewport->x){
x_end = viewport->x;
}
left <<= viewport->zoom;
right <<= viewport->zoom;
top <<= viewport->zoom;
bottom <<= viewport->zoom;
//dx
int x_start = right;
left += viewport->view_x;
right += viewport->view_x;
top += viewport->view_y;
bottom += viewport->view_y;
if (right > viewport->x + viewport->width){
x_start = viewport->x + viewport->width;
}
//bx
int y_end = top;
if (top < viewport->y){
y_end = viewport->y;
}
//bp
int y_start = bottom;
if (bottom > viewport->y + viewport->height){
y_start = viewport->y + viewport->height;
}
x_end -= viewport->x;
x_start -= viewport->x;
y_end -= viewport->y;
y_start -= viewport->y;
x_end <<= viewport->zoom;
x_start <<= viewport->zoom;
y_end <<= viewport->zoom;
y_start <<= viewport->zoom;
x_end += viewport->view_x;
x_start += viewport->view_x;
y_end += viewport->view_y;
y_start += viewport->view_y;
//cx
int height = y_start - y_end;
int height = bottom - top;
if (height > 384){
//Paint
viewport_paint(viewport, dpi, x_end, y_end, x_start, y_end + 384);
y_end += 384;
viewport_paint(viewport, dpi, left, top, right, top + 384);
top += 384;
}
//Paint
viewport_paint(viewport, dpi, x_end, y_end, x_start, y_start);
viewport_paint(viewport, dpi, left, top, right, bottom);
}
/**