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https://github.com/nunuhara/xsystem4.git
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Nunuhara Cabbage
a9de3b76fb
Really lazy implementation for now, just draws all sprites every frame. In the future should implement proper compositing with damage tracking. All CG types other than QNT are removed. From what I've seen, System 4 games use QNT, PNG, AJP (encrypted JPEG) and DCF (seems to be a format for partial CG updates). QNT is by far the most common format.
80 lines
2.3 KiB
C
80 lines
2.3 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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static SDL_Surface *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_CreateRGBSurface(0, w, h, 32, 0xFF00, 0xFF0000, 0xFF000000, 0xFF);
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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)
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{
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Rectangle src = { .x = 0, .y = 0, .w = cg->rect.w, .h = cg->rect.h };
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if (!cg->s)
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cg->s = make_rectangle(cg->rect.w, cg->rect.h, &cg->color);
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SDL_BlitSurface(cg->s, &src, sdl.display, &cg->rect);
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sdl.dirty = true;
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}
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