Mercurial > sdl-ios-xcode
annotate src/endian/SDL_endian.c @ 821:30168104389f
Date: Sat, 14 Feb 2004 14:52:40 +0200
From: "Mike Gorchak"
Subject: Batch of the QNX6 fixes for the SDL
1. Updated readme.QNX
2. Fixed crashes during intensive window updating under fast machines (got over 200 rectangles for update).
3. Fixed double-buffered fullscreen modes, now it works as needed.
4. Fixed Photon detection algorithm.
5. Fixed HWSURFACE update function.
6. Added SDL_PHOTON_FULLSCREEN_REFRESH environment variable support for control refresh rates under Photon.
7. Added 640x400 fullscreen mode emulation via 640x480 (if videodriver not supports original 640x400 mode of course) shifted by 40 vertical pixels from begin, to center it. It's needed for some old DOS games which ran in doubled 320x200 mode.
8. Added available video ram amount support.
8. Added hardware surface allocation/deallocation support if current videomode and videodriver supports it.
9. Added hardware filling support.
10. Added hardware blits support (simple and colorkeyed).
And I've added to testvidinfo test color-keyed blits benchmark (maybe need to add alpha blits benchmark too ?). Currently Photon not supporting any alpha hardware blittings (all drivers lack of alpha blitting code support, only software alpha blitting exist in photon, which is hundreds times slowest than the SDL's one). So I've not added the alpha support. I suppose new QNX 6.3 will have the hardware alpha support, so when it will be done, I'll add alpha support.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 14 Feb 2004 20:22:21 +0000 |
| parents | b8d311d90021 |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
769
b8d311d90021
Updated copyright information for 2004 (Happy New Year!)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* Functions for dynamically reading and writing endian-specific values */ | |
| 29 | |
| 30 #include "SDL_endian.h" | |
| 31 | |
| 32 Uint16 SDL_ReadLE16 (SDL_RWops *src) | |
| 33 { | |
| 34 Uint16 value; | |
| 35 | |
| 36 SDL_RWread(src, &value, (sizeof value), 1); | |
| 37 return(SDL_SwapLE16(value)); | |
| 38 } | |
| 39 Uint16 SDL_ReadBE16 (SDL_RWops *src) | |
| 40 { | |
| 41 Uint16 value; | |
| 42 | |
| 43 SDL_RWread(src, &value, (sizeof value), 1); | |
| 44 return(SDL_SwapBE16(value)); | |
| 45 } | |
| 46 Uint32 SDL_ReadLE32 (SDL_RWops *src) | |
| 47 { | |
| 48 Uint32 value; | |
| 49 | |
| 50 SDL_RWread(src, &value, (sizeof value), 1); | |
| 51 return(SDL_SwapLE32(value)); | |
| 52 } | |
| 53 Uint32 SDL_ReadBE32 (SDL_RWops *src) | |
| 54 { | |
| 55 Uint32 value; | |
| 56 | |
| 57 SDL_RWread(src, &value, (sizeof value), 1); | |
| 58 return(SDL_SwapBE32(value)); | |
| 59 } | |
| 60 Uint64 SDL_ReadLE64 (SDL_RWops *src) | |
| 61 { | |
| 62 Uint64 value; | |
| 63 | |
| 64 SDL_RWread(src, &value, (sizeof value), 1); | |
| 65 return(SDL_SwapLE64(value)); | |
| 66 } | |
| 67 Uint64 SDL_ReadBE64 (SDL_RWops *src) | |
| 68 { | |
| 69 Uint64 value; | |
| 70 | |
| 71 SDL_RWread(src, &value, (sizeof value), 1); | |
| 72 return(SDL_SwapBE64(value)); | |
| 73 } | |
| 74 | |
| 75 int SDL_WriteLE16 (SDL_RWops *dst, Uint16 value) | |
| 76 { | |
| 77 value = SDL_SwapLE16(value); | |
| 78 return(SDL_RWwrite(dst, &value, (sizeof value), 1)); | |
| 79 } | |
| 80 int SDL_WriteBE16 (SDL_RWops *dst, Uint16 value) | |
| 81 { | |
| 82 value = SDL_SwapBE16(value); | |
| 83 return(SDL_RWwrite(dst, &value, (sizeof value), 1)); | |
| 84 } | |
| 85 int SDL_WriteLE32 (SDL_RWops *dst, Uint32 value) | |
| 86 { | |
| 87 value = SDL_SwapLE32(value); | |
| 88 return(SDL_RWwrite(dst, &value, (sizeof value), 1)); | |
| 89 } | |
| 90 int SDL_WriteBE32 (SDL_RWops *dst, Uint32 value) | |
| 91 { | |
| 92 value = SDL_SwapBE32(value); | |
| 93 return(SDL_RWwrite(dst, &value, (sizeof value), 1)); | |
| 94 } | |
| 95 int SDL_WriteLE64 (SDL_RWops *dst, Uint64 value) | |
| 96 { | |
| 97 value = SDL_SwapLE64(value); | |
| 98 return(SDL_RWwrite(dst, &value, (sizeof value), 1)); | |
| 99 } | |
| 100 int SDL_WriteBE64 (SDL_RWops *dst, Uint64 value) | |
| 101 { | |
| 102 value = SDL_SwapBE64(value); | |
| 103 return(SDL_RWwrite(dst, &value, (sizeof value), 1)); | |
| 104 } |