mirror of https://github.com/OpenRCT2/OpenRCT2.git
Finished viewport_render decompile.
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@ -109,10 +109,70 @@ void viewport_update_position(rct_window *window)
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/**
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*
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* rct2: 0x00685C02
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* ax: left
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* bx: top
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* dx: right
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* esi: viewport
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* edi: dpi
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* ebp: bottom
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*/
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void viewport_render(rct_drawpixelinfo *dpi, rct_viewport *viewport, int left, int top, int right, int bottom)
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{
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RCT2_CALLPROC_X(0x00685C02, left , top, 0, right, (int)viewport, (int)dpi, bottom);
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if (right <= viewport->x) return;
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if (bottom <= viewport->y) return;
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if (left >= viewport->x + viewport->width )return;
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if (top >= viewport->y + viewport->height )return;
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//ax
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int x_end = left;
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if (left < viewport->x){
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x_end = viewport->x;
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}
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//dx
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int x_start = right;
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if (right > viewport->x + viewport->width){
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x_start = viewport->x + viewport->width;
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}
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//bx
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int y_end = top;
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if (top < viewport->y){
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y_end = viewport->y;
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}
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//bp
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int y_start = bottom;
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if (bottom > viewport->y + viewport->height){
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y_start = viewport->y + viewport->height;
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}
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x_end -= viewport->x;
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x_start -= viewport->x;
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y_end -= viewport->y;
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y_start -= viewport->y;
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x_end <<= viewport->zoom;
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x_start <<= viewport->zoom;
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y_end <<= viewport->zoom;
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y_start <<= viewport->zoom;
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x_end += viewport->view_x;
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x_start += viewport->view_x;
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y_end += viewport->view_y;
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y_start += viewport->view_y;
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//cx
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int height = y_start - y_end;
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if (height > 384){
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RCT2_CALLPROC_X(0x00685CBF, x_end, y_end, height, x_start, (int)viewport, (int)dpi, y_end + 384);
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y_end += 384;
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}
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RCT2_CALLPROC_X(0x00685CBF, x_end, y_end, height, x_start, (int)viewport, (int)dpi, y_start);
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}
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/**
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