124 lines
3.8 KiB
C++
124 lines
3.8 KiB
C++
/*
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* Portions of this file are copyright Rebirth contributors and licensed as
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* described in COPYING.txt.
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* Portions of this file are copyright Parallax Software and licensed
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* according to the Parallax license below.
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* See COPYING.txt for license details.
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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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#if DXX_USE_OGL
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#include "ogl_init.h"
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#endif
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#include "compiler-make_unique.h"
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namespace dcx {
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grs_canvas * grd_curcanv; //active canvas
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std::unique_ptr<grs_screen> grd_curscreen; //active screen
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grs_canvas_ptr gr_create_canvas(uint16_t w, uint16_t h)
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{
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grs_canvas_ptr n = make_unique<grs_main_canvas>();
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unsigned char *pixdata;
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MALLOC(pixdata, unsigned char, MAX_BMP_SIZE(w, h));
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gr_init_canvas(*n.get(), pixdata, bm_mode::linear, w, h);
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return n;
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}
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grs_subcanvas_ptr gr_create_sub_canvas(grs_canvas &canv, uint16_t x, uint16_t y, uint16_t w, uint16_t h)
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{
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auto n = make_unique<grs_subcanvas>();
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gr_init_sub_canvas(*n.get(), canv, x, y, w, h);
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return n;
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}
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void gr_init_canvas(grs_canvas &canv, unsigned char *const pixdata, const bm_mode pixtype, const uint16_t w, const uint16_t h)
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{
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canv.cv_fade_level = GR_FADE_OFF;
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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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auto 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, uint16_t x, uint16_t y, uint16_t w, uint16_t h)
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{
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n.cv_fade_level = src.cv_fade_level;
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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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grs_main_canvas::~grs_main_canvas()
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{
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gr_free_bitmap_data(cv_bitmap);
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}
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#if DXX_DEBUG_CURRENT_CANVAS_ORIGIN > 0
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/* `g_cc_file`, `g_cc_line` are write-only for the program and are meant
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* to be read back by a debugger.
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*/
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__attribute_used
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static const char *g_cc_file[DXX_DEBUG_CURRENT_CANVAS_ORIGIN];
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__attribute_used
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static unsigned g_cc_line[DXX_DEBUG_CURRENT_CANVAS_ORIGIN];
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static unsigned g_cc_which;
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#endif
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void (gr_set_default_canvas)(DXX_DEBUG_CURRENT_CANVAS_FILE_LINE_COMMA_N_DECL_VARS)
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{
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(gr_set_current_canvas)(grd_curscreen->sc_canvas DXX_DEBUG_CURRENT_CANVAS_FILE_LINE_COMMA_L_PASS_VARS);
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}
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void (gr_set_current_canvas)(grs_canvas &canv DXX_DEBUG_CURRENT_CANVAS_FILE_LINE_COMMA_L_DECL_VARS)
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{
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#if DXX_DEBUG_CURRENT_CANVAS_ORIGIN > 0
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const auto which = g_cc_which;
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g_cc_which = (g_cc_which + 1) % DXX_DEBUG_CURRENT_CANVAS_ORIGIN;
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g_cc_file[which] = file;
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g_cc_line[which] = line;
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#endif
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grd_curcanv = &canv;
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}
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void gr_set_current_canvas2(grs_canvas *canv DXX_DEBUG_CURRENT_CANVAS_FILE_LINE_COMMA_L_DECL_VARS)
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{
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(gr_set_current_canvas_inline)(canv DXX_DEBUG_CURRENT_CANVAS_FILE_LINE_COMMA_L_PASS_VARS);
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}
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void gr_clear_canvas(grs_canvas &canvas, color_t color)
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{
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gr_rect(canvas, 0, 0, canvas.cv_bitmap.bm_w - 1, canvas.cv_bitmap.bm_h - 1, color);
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}
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void gr_settransblend(grs_canvas &canvas, const int fade_level, const gr_blend blend_func)
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{
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canvas.cv_fade_level = fade_level;
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#if DXX_USE_OGL
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ogl_set_blending(blend_func);
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#endif
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}
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}
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