erc-c/include/vm_screen.h

#ifndef _VM_SCREEN_H_
#define _VM_SCREEN_H_

#include <stdbool.h>
#include <SDL.h>

#define VM_SCREEN_DEFWIDTH 800
#define VM_SCREEN_DEFHEIGHT 600

/*
 * If you just want to plot a single pixel, you can use this macro to
 * abstract away the need to indicate the x/y dimensions (as those must
 * necessarily be 1x1).
 */
#define vm_screen_draw_pixel(screen, xpos, ypos) \
    vm_screen_draw_rect(screen, xpos, ypos, 1, 1)

typedef struct {
    SDL_Window *window;
    SDL_Renderer *render;
    SDL_Rect rect;

    int xcoords;
    int ycoords;
} vm_screen;

extern bool vm_screen_active(vm_screen *);
extern int vm_screen_add_window(vm_screen *, int, int);
extern int vm_screen_init();
extern int vm_screen_xcoords(vm_screen *);
extern int vm_screen_ycoords(vm_screen *);
extern vm_screen *vm_screen_create();
extern void vm_screen_draw_rect(vm_screen *, int, int, int, int);
extern void vm_screen_finish();
extern void vm_screen_free(vm_screen *);
extern void vm_screen_refresh(vm_screen *);
extern void vm_screen_set_color(vm_screen *, uint8_t, uint8_t, uint8_t, uint8_t);
extern void vm_screen_set_logical_coords(vm_screen *, int, int);

#endif
First commit 2017-11-22 05:24:51 +00:00			`#ifndef _VM_SCREEN_H_`
			`#define _VM_SCREEN_H_`

First stab at adding graphics. This involves using glfw. This first commit creates a window but doesn't do anything with it; it also just hangs until you can escape out somehow. 2017-12-17 04:45:39 +00:00			`#include <stdbool.h>`
Really basic implementation of SDL2. Plus a crappy rectangle to prove that our vm screen code is working in principle. (It will be removed shortly.) 2017-12-18 05:31:56 +00:00			`#include <SDL.h>`
First stab at adding graphics. This involves using glfw. This first commit creates a window but doesn't do anything with it; it also just hangs until you can escape out somehow. 2017-12-17 04:45:39 +00:00
Add glew, defines for width/height 2017-12-18 01:09:54 +00:00			`#define VM_SCREEN_DEFWIDTH 800`
			`#define VM_SCREEN_DEFHEIGHT 600`

More documentation 2017-12-07 03:37:14 +00:00			`/*`
			`* If you just want to plot a single pixel, you can use this macro to`
			`* abstract away the need to indicate the x/y dimensions (as those must`
			`* necessarily be 1x1).`
			`*/`
Rename vm_screen_context to vm_screen 2017-12-17 22:42:05 +00:00			`#define vm_screen_draw_pixel(screen, xpos, ypos) \`
			`vm_screen_draw_rect(screen, xpos, ypos, 1, 1)`
More documentation 2017-12-07 03:37:14 +00:00
First commit 2017-11-22 05:24:51 +00:00			`typedef struct {`
Really basic implementation of SDL2. Plus a crappy rectangle to prove that our vm screen code is working in principle. (It will be removed shortly.) 2017-12-18 05:31:56 +00:00			`SDL_Window *window;`
			`SDL_Renderer *render;`
			`SDL_Rect rect;`

			`int xcoords;`
			`int ycoords;`
Rename vm_screen_context to vm_screen 2017-12-17 22:42:05 +00:00			`} vm_screen;`
First commit 2017-11-22 05:24:51 +00:00
Reorganize header files 2017-12-26 22:47:34 +00:00			`extern bool vm_screen_active(vm_screen *);`
Add ability to set logical size of window at any time 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. 2017-12-20 22:44:24 +00:00			`extern int vm_screen_add_window(vm_screen *, int, int);`
Reorganize header files 2017-12-26 22:47:34 +00:00			`extern int vm_screen_init();`
Add ability to set logical size of window at any time 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. 2017-12-20 22:44:24 +00:00			`extern int vm_screen_xcoords(vm_screen *);`
			`extern int vm_screen_ycoords(vm_screen *);`
Reorganize header files 2017-12-26 22:47:34 +00:00			`extern vm_screen *vm_screen_create();`
Rename vm_screen_context to vm_screen 2017-12-17 22:42:05 +00:00			`extern void vm_screen_draw_rect(vm_screen *, int, int, int, int);`
Reorganize header files 2017-12-26 22:47:34 +00:00			`extern void vm_screen_finish();`
Rename vm_screen_context to vm_screen 2017-12-17 22:42:05 +00:00			`extern void vm_screen_free(vm_screen *);`
Reorganize header files 2017-12-26 22:47:34 +00:00			`extern void vm_screen_refresh(vm_screen *);`
Really basic implementation of SDL2. Plus a crappy rectangle to prove that our vm screen code is working in principle. (It will be removed shortly.) 2017-12-18 05:31:56 +00:00			`extern void vm_screen_set_color(vm_screen *, uint8_t, uint8_t, uint8_t, uint8_t);`
Reorganize header files 2017-12-26 22:47:34 +00:00			`extern void vm_screen_set_logical_coords(vm_screen *, int, int);`
First commit 2017-11-22 05:24:51 +00:00
			`#endif`