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https://github.com/kevinbentley/Descent3.git
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124 lines
3.3 KiB
C
124 lines
3.3 KiB
C
/*
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* Descent 3
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* Copyright (C) 2024 Parallax Software
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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 3 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://www.gnu.org/licenses/>.
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--- HISTORICAL COMMENTS FOLLOW ---
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* $Logfile: /DescentIII/Main/lib/grdefs.h $
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* $Revision: 8 $
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* $Date: 10/21/98 11:54p $
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* $Author: Samir $
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*
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*
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*
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* $Log: /DescentIII/Main/lib/grdefs.h $
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*
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* 8 10/21/98 11:54p Samir
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* added GR_NULL
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*
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* 7 5/06/98 4:33p Samir
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* added fixed screen width and height to grdefs.h (default res.)
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*
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* 6 4/23/98 6:38p Jason
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* made bitmaps use 1555 format
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*
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* 5 12/29/97 5:50p Samir
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* Moved GR_COLOR_CHAR to grdefs.h from gr.h.
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*
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* 4 12/22/97 7:39p Samir
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* Moved color constants from gr.h to grdefs.h
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*
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* 3 12/22/97 7:34p Samir
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* Added transparent color info.
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*
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* $NoKeywords: $
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*/
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#ifndef GRDEFS_H
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#define GRDEFS_H
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#include "pstypes.h"
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// bit depth info
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#define BPP_TO_BYTESPP(x) (((x) + 7) >> 3)
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#define BPP_DEFAULT 0 // default for current display
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#define BPP_8 8 // 8-bit paletted.
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#define BPP_15 15 // 5-5-5 + chroma Hicolor
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#define BPP_16 16 // 5-6-5 Hicolor
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#define BPP_24 24 // 24 bit true color
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#define BPP_32 32 // 32 bit true color
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#define FIXED_SCREEN_WIDTH 640
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#define FIXED_SCREEN_HEIGHT 480
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// transparent color constant here.
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#define OPAQUE_FLAG16 0x8000
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#define TRANSPARENT_COLOR32 0x0000FF00
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#define NEW_TRANSPARENT_COLOR 0x0000
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#define OPAQUE_FLAG OPAQUE_FLAG16
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// a new color definition
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typedef uint32_t ddgr_color;
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// Color constants
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static const ddgr_color GR_NULL = 0xffffffff, // don't do a thing with this.
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GR_BLACK = 0x00000000, GR_GREEN = 0x0000ff00, GR_RED = 0x00ff0000, GR_BLUE = 0x000000ff, GR_DARKGRAY = 0x00404040,
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GR_LIGHTGRAY = 0x00c0c0c0, GR_WHITE = 0x00ffffff;
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#define GR_COLOR_CHAR 1 // ASCII 1 and (r,g,b) changes current text color in string.
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// MACROS
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static inline ddgr_color GR_RGB(int r, int g, int b) { return ((r << 16) + (g << 8) + b); }
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static inline uint16_t GR_RGB16(int r, int g, int b) { return (((r >> 3) << 10) + ((g >> 3) << 5) + (b >> 3)); }
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static inline uint16_t GR_COLOR_TO_16(ddgr_color c) {
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int r, g, b;
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r = ((c & 0x00ff0000) >> 16);
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g = ((c & 0x0000ff00) >> 8);
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b = (c & 0x000000ff);
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return (uint16_t)(((r >> 3) << 10) + ((g >> 3) << 5) + (b >> 3));
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}
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static inline int GR_COLOR_RED(ddgr_color c) {
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int r = ((c & 0x00ff0000) >> 16);
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return (int)r;
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}
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static inline int GR_COLOR_GREEN(ddgr_color c) {
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int g = ((c & 0x0000ff00) >> 8);
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return (int)g;
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}
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static inline int GR_COLOR_BLUE(ddgr_color c) {
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int b = (c & 0x000000ff);
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return (int)b;
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}
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static inline ddgr_color GR_16_TO_COLOR(uint16_t col) {
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int r, g, b;
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r = (col & 0x7c00) >> 7;
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g = (col & 0x03e0) >> 2;
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b = (col & 0x001f) << 3;
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return GR_RGB(r, g, b);
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}
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#endif
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