mirror of
https://github.com/nunuhara/xsystem4.git
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78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/* Copyright (C) 2000- Fumihiko Murata <fmurata@p1.tcnet.ne.jp>
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* 2019 Nunuhara Cabbage <nunuhara@haniwa.technology>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://gnu.org/licenses/>.
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*/
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#include <stdbool.h>
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#include <SDL.h>
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#include "system4.h"
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#include "graphics.h"
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#include "sdl_core.h"
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#include "sdl_private.h"
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#include "cg.h"
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bool sdl_dirty = false;
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void sdl_update_screen(void)
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{
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if (!sdl.dirty)
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return;
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SDL_UpdateTexture(sdl.texture, NULL, sdl.display->pixels, sdl.display->pitch);
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SDL_RenderClear(sdl.renderer);
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SDL_RenderCopy(sdl.renderer, sdl.texture, NULL, NULL);
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SDL_RenderPresent(sdl.renderer);
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sdl.dirty = false;
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}
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SDL_Surface *sdl_make_rectangle(int w, int h, SDL_Color *color)
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{
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Rectangle rect = { .x = 0, .y = 0, .w = w, .h = w };
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SDL_Surface *s = SDL_CreateRGBSurfaceWithFormat(0, w, h, 32, SDL_PIXELFORMAT_ARGB32);
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uint32_t c = SDL_MapRGBA(s->format, color->r, color->g, color->b, color->a);
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SDL_FillRect(s, &rect, c);
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return s;
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}
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void sdl_draw_rectangle(Rectangle *_rect, int pixels, uint8_t r, uint8_t g, uint8_t b)
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{
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SDL_Rect rect[4];
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// top
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rect[0] = *_rect;
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rect[0].h = pixels;
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// bot
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rect[1] = *_rect;
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rect[1].y += _rect->h - pixels;
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rect[1].h = pixels;
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// left
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rect[2] = *_rect;
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rect[2].w = pixels;
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// right
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rect[3] = *_rect;
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rect[3].x += _rect->w - pixels;
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rect[3].w = pixels;
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uint32_t c = SDL_MapRGB(sdl.display->format, r, g, b);
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SDL_FillRects(sdl.display, rect, 4, c);
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sdl.dirty = true;
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}
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void sdl_draw_cg(struct cg *cg, Rectangle *dst)
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{
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Rectangle src = { .x = 0, .y = 0, .w = cg->s->w, .h = cg->s->h };
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SDL_BlitSurface(cg->s, &src, sdl.display, dst);
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sdl.dirty = true;
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}
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