126 lines
3.2 KiB
C
126 lines
3.2 KiB
C
/*
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include "u_mem.h"
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#include "gr.h"
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#include "grdef.h"
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#ifdef OGL
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#include "ogl_init.h"
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#endif
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grs_canvas * grd_curcanv; //active canvas
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grs_screen * grd_curscreen; //active screen
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grs_canvas *gr_create_canvas(int w, int h)
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{
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grs_canvas *n;
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MALLOC(n, grs_canvas, 1);
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gr_init_bitmap_alloc (&n->cv_bitmap, BM_LINEAR, 0, 0, w, h, w);
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n->cv_color = 0;
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n->cv_fade_level = GR_FADE_OFF;
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n->cv_blend_func = GR_BLEND_NORMAL;
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n->cv_drawmode = 0;
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n->cv_font = NULL;
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n->cv_font_fg_color = 0;
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n->cv_font_bg_color = 0;
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return n;
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}
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grs_canvas *gr_create_sub_canvas(grs_canvas *canv, int x, int y, int w, int h)
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{
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grs_canvas *n;
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MALLOC(n, grs_canvas, 1);
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gr_init_sub_bitmap (&n->cv_bitmap, &canv->cv_bitmap, x, y, w, h);
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n->cv_color = canv->cv_color;
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n->cv_fade_level = canv->cv_fade_level;
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n->cv_blend_func = canv->cv_blend_func;
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n->cv_drawmode = canv->cv_drawmode;
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n->cv_font = canv->cv_font;
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n->cv_font_fg_color = canv->cv_font_fg_color;
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n->cv_font_bg_color = canv->cv_font_bg_color;
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return n;
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}
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void gr_init_canvas(grs_canvas *canv, unsigned char * pixdata, int pixtype, int w, int h)
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{
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int wreal;
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canv->cv_color = 0;
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canv->cv_fade_level = GR_FADE_OFF;
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canv->cv_blend_func = GR_BLEND_NORMAL;
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canv->cv_drawmode = 0;
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canv->cv_font = NULL;
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canv->cv_font_fg_color = 0;
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canv->cv_font_bg_color = 0;
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wreal = w;
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gr_init_bitmap (&canv->cv_bitmap, pixtype, 0, 0, w, h, wreal, pixdata);
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}
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void gr_init_sub_canvas(grs_canvas *n, grs_canvas *src, int x, int y, int w, int h)
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{
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n->cv_color = src->cv_color;
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n->cv_fade_level = src->cv_fade_level;
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n->cv_blend_func = src->cv_blend_func;
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n->cv_drawmode = src->cv_drawmode;
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n->cv_font = src->cv_font;
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n->cv_font_fg_color = src->cv_font_fg_color;
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n->cv_font_bg_color = src->cv_font_bg_color;
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gr_init_sub_bitmap (&n->cv_bitmap, &src->cv_bitmap, x, y, w, h);
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}
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void gr_free_canvas(grs_canvas *canv)
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{
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gr_free_bitmap_data(&canv->cv_bitmap);
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d_free(canv);
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}
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void gr_free_sub_canvas(grs_canvas *canv)
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{
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d_free(canv);
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}
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void gr_set_current_canvas( grs_canvas *canv )
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{
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if (canv==NULL)
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grd_curcanv = &(grd_curscreen->sc_canvas);
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else
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grd_curcanv = canv;
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}
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void gr_clear_canvas(int color)
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{
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gr_setcolor(color);
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gr_rect(0,0,GWIDTH-1,GHEIGHT-1);
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}
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void gr_setcolor(int color)
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{
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grd_curcanv->cv_color=color;
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}
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void gr_settransblend(int fade_level, ubyte blend_func)
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{
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grd_curcanv->cv_fade_level=fade_level;
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grd_curcanv->cv_blend_func=blend_func;
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#ifdef OGL
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ogl_set_blending();
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#endif
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}
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