108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
#include "window.h"
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#include "aliases/aliases.h"
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#include <SDL2/SDL_rect.h>
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#include <SDL2/SDL_render.h>
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#include <SDL2/SDL_video.h>
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#include <stdbool.h>
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bool init_window(window_t *wnd, const char *title, u32 width, u32 height, i32 x,
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i32 y) {
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i32 pos_x = x >= 0 ? x : SDL_WINDOWPOS_CENTERED;
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i32 pos_y = y >= 0 ? y : SDL_WINDOWPOS_CENTERED;
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wnd->window =
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SDL_CreateWindow(title, pos_x, pos_y, width, height, SDL_WINDOW_SHOWN);
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if (!(wnd->window)) {
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return false;
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}
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wnd->renderer = SDL_CreateRenderer(
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wnd->window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
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if (!(wnd->renderer)) {
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cleanup_window(wnd);
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return false;
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}
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wnd->id = SDL_GetWindowID(wnd->window);
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wnd->title = title;
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i32 x_tmp = -1;
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i32 y_tmp = -1;
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SDL_GetWindowPosition(wnd->window, &x_tmp, &y_tmp);
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wnd->x = x_tmp;
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wnd->y = y_tmp;
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i32 w_tmp = -1;
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i32 h_tmp = -1;
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SDL_GetWindowSize(wnd->window, &w_tmp, &h_tmp);
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wnd->width = w_tmp;
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wnd->height = h_tmp;
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return true;
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}
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void cleanup_window(window_t *wnd) {
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if (wnd->renderer) {
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SDL_DestroyRenderer(wnd->renderer);
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wnd->renderer = NULL;
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}
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if (wnd->window) {
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SDL_DestroyWindow(wnd->window);
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wnd->window = NULL;
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}
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wnd->width = wnd->height = wnd->id = 0;
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}
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void set_colour(const window_t *wnd, colour_t colour) {
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SDL_SetRenderDrawColor(wnd->renderer, colour.colour.r, colour.colour.g,
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colour.colour.b, colour.colour.a);
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}
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void clear_window(const window_t *wnd, colour_t colour) {
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set_colour(wnd, colour);
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SDL_RenderClear(wnd->renderer);
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}
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void swap_buffers(const window_t *wnd) { SDL_RenderPresent(wnd->renderer); }
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void draw_point(const window_t *wnd, point_t p, colour_t colour) {
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set_colour(wnd, colour);
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SDL_RenderDrawPoint(wnd->renderer, p.x, p.y);
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}
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void draw_line(const window_t *wnd, const line_t *ln, colour_t colour) {
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set_colour(wnd, colour);
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SDL_RenderDrawLine(wnd->renderer, ln->p0.x, ln->p0.y, ln->p1.x, ln->p1.y);
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}
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void draw_triangle(const window_t *wnd, const triangle_t *triangle,
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colour_t colour) {
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line_t ln0 = {triangle->p0, triangle->p1};
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line_t ln1 = {triangle->p0, triangle->p2};
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line_t ln2 = {triangle->p1, triangle->p2};
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draw_line(wnd, &ln0, colour);
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draw_line(wnd, &ln1, colour);
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draw_line(wnd, &ln2, colour);
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}
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void draw_rect(const window_t *wnd, rect_t rect, colour_t colour) {
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set_colour(wnd, colour);
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SDL_Rect dst = {rect.topleft.x, rect.topleft.y, rect.w, rect.h};
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SDL_RenderDrawRect(wnd->renderer, &dst);
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}
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void fill_rect(const window_t *wnd, rect_t rect, colour_t colour) {
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set_colour(wnd, colour);
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SDL_Rect dst = {rect.topleft.x, rect.topleft.y, rect.w, rect.h};
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SDL_RenderFillRect(wnd->renderer, &dst);
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}
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