Mercurial > sdl-ios-xcode

annotate src/video/nanox/SDL_nxvideo.h @ 2042:3908e1f808e1

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fixed bug #292 I might be on crack here. It looks like SDL_ConvertMono() in src/audio/SDL_audiocvt.c adds the left and right channels of a stereo stream together, and clamps the new mono channel if it would overflow. Shouldn't it be dividing by 2 to average the two sample points instead of clamping? Otherwise the mono sample point's volume doubles in the conversion. This would also make the conversion faster, as it replaces two branches per sample frame with a bitwise shift. --ryan.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 24 Sep 2006 15:56:36 +0000
parents c121d94672cb
children 99210400e8b9
rev   line source
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1 /*
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
769
b8d311d90021 Updated copyright information for 2004 (Happy New Year!)
Sam Lantinga <slouken@libsdl.org>
parents: 471
diff changeset
3 Copyright (C) 1997-2004 Sam Lantinga
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
4 Copyright (C) 2001 Hsieh-Fu Tsai
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
5
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
6 This library is free software; you can redistribute it and/or
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
7 modify it under the terms of the GNU Library General Public
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
8 License as published by the Free Software Foundation; either
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
9 version 2 of the License, or (at your option) any later version.
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
10
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
11 This library is distributed in the hope that it will be useful,
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
14 Library General Public License for more details.
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
15
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
16 You should have received a copy of the GNU Library General Public
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
17 License along with this library; if not, write to the Free
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
19
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
20 Sam Lantinga
252
e8157fcb3114 Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents: 30
diff changeset
21 slouken@libsdl.org
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
22
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
23 Hsieh-Fu Tsai
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
24 clare@setabox.com
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
25 */
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
26 #include "SDL_config.h"
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
27
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
28 #ifndef _SDL_nxvideo_h
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
29 #define _SDL_nxvideo_h
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
31 #include <microwin/nano-X.h>
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
32
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
33 #include "../SDL_sysvideo.h"
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
34
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
35 #ifdef ENABLE_NANOX_DEBUG
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
36 #define Dprintf printf
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
37 #else
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
38 #define Dprintf(ignore...)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
39 #endif
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
40
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
41 // Hidden "this" pointer for the video functions
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
42 #define _THIS SDL_VideoDevice * this
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
43
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
44 // Private display data
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
45 typedef struct NX_SDL_VISUAL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
46 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
47 int bpp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
48 Uint32 red_mask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
49 Uint32 green_mask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
50 Uint32 blue_mask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
51 } nx_sdl_visual_t;
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
52
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
53 struct SDL_PrivateVideoData
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
54 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
55 GR_WINDOW_ID SDL_Window;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
56 GR_WINDOW_ID FSwindow;
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
57 // Flag: true if we have been passed a window
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
58 char *SDL_windowid;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
59 GR_GC_ID GC;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
60 unsigned char *Image;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
61 unsigned char *Image_buff; /* for GrArea */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
62 unsigned char *Clientfb; /* for DirectFB */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
63 nx_sdl_visual_t SDL_Visual;
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
64 // The current list of available video modes
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
65 SDL_Rect **modelist;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
66 int currently_fullscreen;
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
67 // for fullscreen
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
68 int OffsetX, OffsetY;
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
69 // for GammaRamp
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
70 Uint16 *GammaRamp_R, *GammaRamp_G, *GammaRamp_B;
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
71 // for GrArea, r_mask, g_mask, b_mask
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
72 int pixel_type;
471
26dafefeebb2 Date: Sat, 24 Aug 2002 22:20:01 -0600
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
73 #ifdef ENABLE_NANOX_DIRECT_FB
26dafefeebb2 Date: Sat, 24 Aug 2002 22:20:01 -0600
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
74 GR_WINDOW_FB_INFO fbinfo;
26dafefeebb2 Date: Sat, 24 Aug 2002 22:20:01 -0600
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
75 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
76 };
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
77
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
78 #define SDL_Window (this -> hidden -> SDL_Window)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
79 #define FSwindow (this -> hidden -> FSwindow)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
80 #define SDL_windowid (this -> hidden -> SDL_windowid)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
81 #define SDL_GC (this -> hidden -> GC)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
82 #define SDL_Image (this -> hidden -> Image)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
83 #define Image_buff (this -> hidden -> Image_buff)
471
26dafefeebb2 Date: Sat, 24 Aug 2002 22:20:01 -0600
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
84 #define Clientfb (this -> hidden -> Clientfb)
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
85 #define SDL_Visual (this -> hidden -> SDL_Visual)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
86 #define SDL_modelist (this -> hidden -> modelist)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
87 #define currently_fullscreen (this -> hidden -> currently_fullscreen)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
88 #define OffsetX (this -> hidden -> OffsetX)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
89 #define OffsetY (this -> hidden -> OffsetY)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
90 #define GammaRamp_R (this -> hidden -> GammaRamp_R)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
91 #define GammaRamp_G (this -> hidden -> GammaRamp_G)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
92 #define GammaRamp_B (this -> hidden -> GammaRamp_B)
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
93 #define pixel_type (this -> hidden -> pixel_type)
471
26dafefeebb2 Date: Sat, 24 Aug 2002 22:20:01 -0600
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
94 #define fbinfo (this -> hidden -> fbinfo)
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
95
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
96 #define CI_SIZE 256 // color index size
30
57bf11a5efd7 Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
97
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
98 #endif // _SDL_nxvideo_h
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
99 /* vi: set ts=4 sw=4 expandtab: */