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annotate include/SDL_config_dreamcast.h @ 3899:081aecdb0911 SDL-1.2

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From: Gabriel Gambetta To: SDL Mailing List <sdl@libsdl.org> Date: Fri, 17 Nov 2006 00:39:29 -0200 Subject: [SDL] Alpha blending bug - fixed? It turns out mm5 never got the correct value. This failed : [...] "movd %1, %%mm5\n\t" : : "m" (amask), "m" (sf->Ashift) ); mm5 got 0xFF000018 instead of 0x00000018. However I did this : Uint32 ashift = sf->Ashift; [...] "movd %1, %%mm5\n\t" : : "m" (amask), "m" (ashift) ); and everything worked fine. The only thing I could find out was that ashift is 32-bit aligned but sf->Ashift isn't: printf("ashift %8X [%d]\n", &ashift, (int)(&ashift) % 4); printf("sf->Ashift %8X [%d]\n", &sf->Ashift, (int)(&sf->Ashift) % 4); ashift at BFF0E0C4 [0] sf->Ashift at 08AFB9CD [1] Could this be the problem? If it is, the fix is extremely trivial. Should I submit a patch? --Gabriel
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 21 Nov 2006 23:17:00 +0000
parents d951a5afaf07
children e49147870aac a1b03ba2fcd0
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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23 #ifndef _SDL_config_dreamcast_h
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24 #define _SDL_config_dreamcast_h
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25
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26 #include "SDL_platform.h"
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27
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28 /* This is a set of defines to configure the SDL features */
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29
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30 typedef signed char int8_t;
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31 typedef unsigned char uint8_t;
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32 typedef signed short int16_t;
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33 typedef unsigned short uint16_t;
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34 typedef signed int int32_t;
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35 typedef unsigned int uint32_t;
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36 typedef signed long long int64_t;
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37 typedef unsigned long long uint64_t;
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38 typedef unsigned long uintptr_t;
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39 #define SDL_HAS_64BIT_TYPE 1
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40
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41 /* Useful headers */
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42 #define HAVE_SYS_TYPES_H 1
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43 #define HAVE_STDIO_H 1
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44 #define STDC_HEADERS 1
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45 #define HAVE_STRING_H 1
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46 #define HAVE_CTYPE_H 1
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47
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48 /* C library functions */
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49 #define HAVE_MALLOC 1
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50 #define HAVE_CALLOC 1
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51 #define HAVE_REALLOC 1
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52 #define HAVE_FREE 1
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53 #define HAVE_ALLOCA 1
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54 #define HAVE_GETENV 1
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55 #define HAVE_PUTENV 1
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56 #define HAVE_QSORT 1
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57 #define HAVE_ABS 1
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58 #define HAVE_BCOPY 1
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59 #define HAVE_MEMSET 1
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60 #define HAVE_MEMCPY 1
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61 #define HAVE_MEMMOVE 1
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62 #define HAVE_MEMCMP 1
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63 #define HAVE_STRLEN 1
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64 #define HAVE_STRDUP 1
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65 #define HAVE_INDEX 1
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66 #define HAVE_RINDEX 1
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67 #define HAVE_STRCHR 1
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68 #define HAVE_STRRCHR 1
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69 #define HAVE_STRSTR 1
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70 #define HAVE_STRTOL 1
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71 #define HAVE_STRTOD 1
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72 #define HAVE_ATOI 1
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73 #define HAVE_ATOF 1
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74 #define HAVE_STRCMP 1
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75 #define HAVE_STRNCMP 1
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76 #define HAVE_STRICMP 1
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77 #define HAVE_STRCASECMP 1
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78 #define HAVE_SSCANF 1
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79 #define HAVE_SNPRINTF 1
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80 #define HAVE_VSNPRINTF 1
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81
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82 /* Enable various audio drivers */
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83 #define SDL_AUDIO_DRIVER_DC 1
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84 #define SDL_AUDIO_DRIVER_DISK 1
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85 #define SDL_AUDIO_DRIVER_DUMMY 1
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86
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87 /* Enable various cdrom drivers */
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88 #define SDL_CDROM_DC 1
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89
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90 /* Enable various input drivers */
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91 #define SDL_JOYSTICK_DC 1
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92
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93 /* Enable various shared object loading systems */
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94 #define SDL_LOADSO_DUMMY 1
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95
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96 /* Enable various threading systems */
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97 #define SDL_THREAD_DC 1
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98
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99 /* Enable various timer systems */
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100 #define SDL_TIMER_DC 1
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101
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102 /* Enable various video drivers */
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103 #define SDL_VIDEO_DRIVER_DC 1
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104 #define SDL_VIDEO_DRIVER_DUMMY 1
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106 #endif /* _SDL_config_dreamcast_h */