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b1c146c62d
We also removed the scale field, as the screen does not expect to manage its own logical coordinates in SDL. Additionally, we added an xcoords and ycoords function to the screen externs so that you don't have to "know" that screen has those as fields.
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
#ifndef _VM_SCREEN_H_
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#define _VM_SCREEN_H_
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#include <stdbool.h>
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#include <SDL.h>
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#define VM_SCREEN_DEFWIDTH 800
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#define VM_SCREEN_DEFHEIGHT 600
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/*
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* If you just want to plot a single pixel, you can use this macro to
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* abstract away the need to indicate the x/y dimensions (as those must
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* necessarily be 1x1).
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*/
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#define vm_screen_draw_pixel(screen, xpos, ypos) \
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vm_screen_draw_rect(screen, xpos, ypos, 1, 1)
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typedef struct {
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SDL_Window *window;
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SDL_Renderer *render;
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SDL_Rect rect;
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int xcoords;
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int ycoords;
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} vm_screen;
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extern int vm_screen_add_window(vm_screen *, int, int);
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extern void vm_screen_set_logical_coords(vm_screen *, int, int);
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extern int vm_screen_xcoords(vm_screen *);
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extern int vm_screen_ycoords(vm_screen *);
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extern int vm_screen_init();
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extern void vm_screen_finish();
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extern void vm_screen_refresh(vm_screen *);
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extern bool vm_screen_active(vm_screen *);
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extern void vm_screen_draw_rect(vm_screen *, int, int, int, int);
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extern void vm_screen_free(vm_screen *);
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extern vm_screen *vm_screen_create();
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extern void vm_screen_set_color(vm_screen *, uint8_t, uint8_t, uint8_t, uint8_t);
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#endif
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