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Make vm_area_set be an inline function.

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Gets most of the benefits of being a macro, but also gains type safety
(which macros do not have).
This commit is contained in:
Peter Evans 2017-12-27 17:10:51 -06:00
parent 30223e0bca
commit 6a230341e1
3 changed files with 21 additions and 6 deletions
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7
include/vm_screen.h
View File

@ -45,13 +45,8 @@ typedef struct {
SDL_Rect name; \
SET_SDL_RECT(name, a)
#define vm_area_set(a, x, y, w, h) \
(a)->xoff = x; \
(a)->yoff = y; \
(a)->width = w; \
(a)->height = h
extern bool vm_screen_active(vm_screen *);
extern void vm_area_set(vm_area *, int, int, int, int);
extern int vm_screen_add_window(vm_screen *, int, int);
extern int vm_screen_init();
extern int vm_screen_xcoords(vm_screen *);

9
src/vm_screen.c
View File

@ -211,3 +211,12 @@ vm_screen_draw_rect(vm_screen *screen, vm_area *area)
SDL_RenderFillRect(screen->render, &rect);
}
inline void
vm_area_set(vm_area *area, int xoff, int yoff, int width, int height)
{
area->xoff = xoff;
area->yoff = yoff;
area->width = width;
area->height = height;
}

11
tests/vm_screen.c
View File

@ -52,3 +52,14 @@ Test(vm_screen, ycoords)
screen->ycoords = 234;
cr_assert_eq(screen->ycoords, 234);
}
Test(vm_screen, area_set)
{
vm_area area;
vm_area_set(&area, 1, 2, 3, 4);
cr_assert_eq(area.xoff, 1);
cr_assert_eq(area.yoff, 2);
cr_assert_eq(area.width, 3);
cr_assert_eq(area.height, 4);
}