2 * Copyright (C) Volition, Inc. 1999. All rights reserved.
4 * All source code herein is the property of Volition, Inc. You may not sell
5 * or otherwise commercially exploit the source or things you created based on
10 * $Logfile: /Freespace2/code/Graphics/GrInternal.h $
15 * Include file for our Graphics directory
18 * Revision 1.2 2002/06/09 04:41:13 relnev
19 * added copyright header
21 * Revision 1.1.1.1 2002/05/03 03:28:12 root
25 * 7 6/29/99 10:35a Dave
26 * Interface polygon bitmaps! Whee!
28 * 6 1/15/99 11:29a Neilk
29 * Fixed D3D screen/texture pixel formatting problem.
31 * 5 1/14/99 12:48a Dave
32 * Todo list bug fixes. Made a pass at putting briefing icons back into
33 * FRED. Sort of works :(
35 * 4 12/02/98 5:47p Dave
36 * Put in interface xstr code. Converted barracks screen to new format.
38 * 3 12/01/98 10:32a Johnson
39 * Fixed direct3d font problems. Fixed sun bitmap problem. Fixed direct3d
42 * 2 10/07/98 10:53a Dave
45 * 1 10/07/98 10:49a Dave
47 * 23 5/06/98 11:21p John
48 * Fixed a bitmap bug with Direct3D. Started adding new caching code into
51 * 22 4/08/98 4:09p John
52 * Fixed some potential bugs with high bit set in screen piointer.
54 * 21 3/25/98 8:07p John
55 * Restructured software rendering into two modules; One for windowed
56 * debug mode and one for DirectX fullscreen.
58 * 20 3/24/98 3:58p John
59 * Put in (hopefully) final gamma setting code.
61 * 19 3/10/98 4:18p John
62 * Cleaned up graphics lib. Took out most unused gr functions. Made D3D
63 * & Glide have popups and print screen. Took out all >8bpp software
64 * support. Made Fred zbuffer. Made zbuffer allocate dynamically to
65 * support Fred. Made zbuffering key off of functions rather than one
68 * 18 2/07/98 7:50p John
69 * Added code so that we can use the old blending type of alphacolors if
70 * we want to. Made the stars use them.
72 * 17 1/26/98 5:12p John
73 * Added in code for Pentium Pro specific optimizations. Speed up
74 * zbuffered correct tmapper about 35%. Speed up non-zbuffered scalers
77 * 16 11/30/97 3:57p John
78 * Made fixed 32-bpp translucency. Made BmpMan always map translucent
79 * color into 255 even if you aren't supposed to remap and make it's
82 * 15 11/30/97 12:18p John
83 * added more 24 & 32-bpp primitives
85 * 14 11/29/97 2:06p John
86 * added mode 16-bpp support
88 * 13 11/14/97 12:30p John
89 * Fixed some DirectX bugs. Moved the 8-16 xlat tables into Graphics
90 * libs. Made 16-bpp DirectX modes know what bitmap format they're in.
92 * 12 11/03/97 10:08p Hoffoss
93 * Changed gr_get_string_size to utilize an optional length specifier, if
94 * you want to use non-null terminated strings.
96 * 11 10/19/97 12:55p John
97 * new code to lock / unlock surfaces for smooth directx integration.
99 * 10 10/14/97 4:50p John
102 * 9 10/14/97 8:08a John
103 * added a bunch more 16 bit support
105 * 8 7/18/97 12:40p John
106 * cached alphacolors to disk. Also made cfopen be able to delete a file
107 * by passing NULL for mode.
109 * 7 6/17/97 12:03p John
110 * Moved color/alphacolor functions into their own module. Made all color
111 * functions be part of the low-level graphics drivers, not just the
114 * 6 6/12/97 5:04p John
115 * Initial rev of Glide support
117 * 5 6/11/97 5:49p John
118 * Changed palette code to only recalculate alphacolors when needed, not
119 * when palette changes.
121 * 4 6/06/97 4:41p John
122 * Fixed alpha colors to be smoothly integrated into gr_set_color_fast
125 * 3 6/06/97 2:40p John
126 * Made all the radar dim in/out
128 * 2 5/14/97 4:38p John
129 * Fixed print_screen bug.
131 * 1 5/12/97 12:13p John
136 #ifndef _GRINTERNAL_H
137 #define _GRINTERNAL_H
141 #include "grzbuffer.h"
143 extern int Gr_cursor;
145 #define GR_SCREEN_PTR(type,x,y) ((type *)(uint(gr_screen.offscreen_buffer) + uint(((x)+gr_screen.offset_x)*sizeof(type)) + uint(((y)+gr_screen.offset_y)*gr_screen.rowsize)))
146 #define GR_SCREEN_PTR_SIZE(bpp,x,y) ((uint)(uint(gr_screen.offscreen_buffer) + uint(((x)+gr_screen.offset_x)*(bpp)) + uint(((y)+gr_screen.offset_y)*gr_screen.rowsize)))
148 extern ubyte Gr_original_palette[768]; // The palette
149 extern ubyte Gr_current_palette[768];
151 typedef struct alphacolor {
154 int type; // See AC_TYPE_??? define
158 ubyte lookup[16][256]; // For 8-bpp rendering modes
163 // for backwards fred aabitmap compatibility
164 typedef struct alphacolor_old {
167 int type; // See AC_TYPE_??? define
170 ubyte lookup[16][256]; // For 8-bpp rendering modes
174 extern alphacolor * Current_alphacolor;
175 void gr_init_alphacolors();
177 extern char Gr_current_palette_name[128];
179 typedef struct color_gun {
187 extern color_gun Gr_red, Gr_green, Gr_blue, Gr_alpha;
190 extern color_gun Gr_t_red, Gr_t_green, Gr_t_blue, Gr_t_alpha;
192 // alpha texture format
193 extern color_gun Gr_ta_red, Gr_ta_green, Gr_ta_blue, Gr_ta_alpha;
195 // CURRENT FORMAT - note - this is what bmpman uses when fiddling with pixels/colors. so be sure its properly set to one
196 // of the above values
197 extern color_gun *Gr_current_red, *Gr_current_green, *Gr_current_blue, *Gr_current_alpha;
200 // Translate the 768 byte 'src' palette into
201 // the current screen format's palette.
202 // The size of the dst array is assumed to be gr_screen.bpp
203 // bytes per element.
204 void gr_xlat_palette( void *dst, bitmap *bmp );
206 // CPU identification variables
207 extern int Gr_cpu; // What type of CPU. 5=Pentium, 6=Ppro/PII
208 extern int Gr_mmx; // MMX capabilities? 0=No, 1=Yes
210 extern float Gr_gamma;
211 extern int Gr_gamma_int; // int(Gr_gamma*100)
212 extern int Gr_gamma_lookup[256];
214 #define TCACHE_TYPE_AABITMAP 0 // HUD bitmap. All Alpha.
215 #define TCACHE_TYPE_NORMAL 1 // Normal bitmap. Alpha = 0.
216 #define TCACHE_TYPE_XPARENT 2 // Bitmap with 0,255,0 = transparent. Alpha=0 if transparent, 1 if not.
217 #define TCACHE_TYPE_NONDARKENING 3 // Bitmap with 255,255,255 = non-darkening. Alpha=1 if non-darkening, 0 if not.
218 #define TCACHE_TYPE_BITMAP_SECTION 4 // section of a bitmap