Mercurial > sdl-ios-xcode
annotate src/video/nds/SDL_ndsvideo.c @ 4139:568c9b3c0167 SDL-1.2
* Added configure option --enable-screensaver, to allow enabling the screensaver by default.
* Use XResetScreenSaver() instead of disabling screensaver entirely.
Full discussion summary from Erik on the SDL mailing list:
Current behaviour
=================
SDL changes the user's display power management settings without
permission from the user and without telling the user.
The interface that it uses to do so is DPMSDisable/DPMSEnable, which
should only ever be used by configuration utilities like KControl, never
by normal application programs, let alone by the libraries that they
use. Using an interface that is not at all intended for what SDL tries
to achieve means that it will not work as it should. Firstly, the power
management is completely disabled during the whole lifetime of the SDL
program, not only when it should be. Secondly, it makes SDL
non-reentrant, meaning that things will break when multiple SDL programs
are clients of the same X server simultaneously. Thirdly, no cleanup
mechanism ensures that the setting is restored if the client does not do
that (for example if it crashes).
In addition to that, this interface is broken on xorg,
[http://bugs.freedesktop.org/show_bug.cgi?id=13962], so what SDL tries
to do does not work at all on that implementation of the X Window
System. (The reason that the DPMSEnable works in KControl is that it
calls DPMSSetTimeout immediately after,
[http://websvn.kde.org/tags/KDE/3.5.9/kdebase/kcontrol/energy/energy.cpp?annotate=774532#l343]).
The problems that the current behaviour causes
==============================================
1. Information leak. When the user is away, someone might see what the
user has on the display when the user counts on the screensaver
preventing this. This does not even require physical access to the
workstation, it is enough to see it from a distance.
2. Draining battery. An SDL program that runs on a laptop will quickly
drain the battery while the user is away. The system will soon shut down
and require recharging before being usable again, while it should in
fact have consumed very little energy if the user's settings would have
been obeyed.
3. Wasting energy. Even if battery issues are not considered, energy as
such is wasted.
4. Display wear. The display may be worn out.
The problems that the current behaviour tries to solve
======================================================
1. Preventing screensaver while playing movies.
Many SDL applications are media players. They have reasons to prevent
screensavers from being activated while a movie is being played. When a
user clicks on the play button it can be interpreted as saying "play
this movie, but do not turn off the display while playing it, because I
will watch it even though I do not interact with the system".
2. Preventing screensaver when some input bypasses X.
Sometimes SDL uses input from another source than the X server, so
that the X server is bypassed. This obviously breaks the screensaver
handling. SDL tries to work around that.
3. Preventing screensaver when all input bypasses X.
There is something called Direct Graphics Access mode, where a
program takes control of both the display and the input devices from the
X server. This obviously means that the X server can not handle the
screensaver alone, since screensaver handling depends on input handling.
SDL does not do what it should to help the X server to handle the
screensaver. Nor does SDL take care of screeensaver handling itself. SDL
simply disables the screensaver completely.
How the problems should be solved
=================================
The correct way for an application program to prevent the screensaver
under X is to call XResetScreenSaver. This was recently discovered and
implemented by the mplayer developers,
[http://svn.mplayerhq.hu/mplayer?view=rev&revision=25637]. SDL needs to
wrap this in an API call (SDL_ResetScreenSaver) and implement it for the
other video targets (if they do not have a corresponding call, SDL
should do what it takes on that particular target, for example sending
fake key events).
1. When a movie is played, the player should reset the screensaver when
the animation is advanced to a new frame. The same applies to anything
similar, like slideshows.
2. When the X server is handling input, it must handle all input
(keyboards, mice, gamepads, ...). This is necessary, not only to be able
to handle the screensaver, but also so that it can send the events to
the correct (the currently active) client. If there is an input device
that the X server can not handle for some reason (such as lack of Plug
and Play capability), the program that handles the device as a
workaround must simulate what would happen if the X server would have
handled the device, by calling XResetScreenSaver when input is received
from the device.
3. When the X server is not handling the input, it depends on the
program that does to call XResetScreenSaver whenever an input event
occurs. Alternatively the program must handle the screensaver countdown
internally and call XActivateScreenSaver.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Fri, 29 Feb 2008 13:55:44 +0000 |
parents | 722db1bd733c |
children | a1b03ba2fcd0 |
rev | line source |
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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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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 |
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24 #include <nds.h> |
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25 #include <nds/registers_alt.h> |
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26 #include "SDL.h" |
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27 #include "SDL_error.h" |
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28 #include "SDL_video.h" |
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29 #include "SDL_mouse.h" |
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30 #include "../SDL_sysvideo.h" |
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31 #include "../SDL_pixels_c.h" |
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32 #include "../../events/SDL_events_c.h" |
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33 |
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34 #include "SDL_ndsvideo.h" |
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35 #include "SDL_ndsevents_c.h" |
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36 #include "SDL_ndsmouse_c.h" |
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37 |
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38 #define NDSVID_DRIVER_NAME "nds" |
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39 |
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40 /* Initialization/Query functions */ |
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41 static int NDS_VideoInit(_THIS, SDL_PixelFormat *vformat); |
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42 static SDL_Rect **NDS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); |
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43 static SDL_Surface *NDS_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); |
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44 static int NDS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); |
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45 static void NDS_VideoQuit(_THIS); |
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46 |
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47 /* Hardware surface functions */ |
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48 static int NDS_AllocHWSurface(_THIS, SDL_Surface *surface); |
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49 static int NDS_LockHWSurface(_THIS, SDL_Surface *surface); |
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50 static int NDS_FlipHWSurface(_THIS, SDL_Surface *surface); |
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51 static void NDS_UnlockHWSurface(_THIS, SDL_Surface *surface); |
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52 static void NDS_FreeHWSurface(_THIS, SDL_Surface *surface); |
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53 |
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54 /* etc. */ |
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55 static void NDS_UpdateRects(_THIS, int numrects, SDL_Rect *rects); |
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56 |
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57 /* NDS driver bootstrap functions */ |
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58 |
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59 static int NDS_Available(void) |
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60 { |
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61 return(1); |
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62 } |
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63 |
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64 static void NDS_DeleteDevice(SDL_VideoDevice *device) |
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65 { |
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66 SDL_free(device->hidden); |
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67 SDL_free(device); |
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68 } |
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69 |
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70 void on_irq_vblank() |
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71 { |
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72 // Disable interrupts |
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73 //REG_IME = 0; |
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74 scanKeys(); |
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75 |
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76 // VBLANK_INTR_WAIT_FLAGS |= IRQ_VBLANK; |
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77 // REG_IF |= IRQ_VBLANK; |
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78 //REG_IF = REG_IF; |
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79 |
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80 // Enable interrupts |
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81 //REG_IME = 1; |
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82 } |
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83 |
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84 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, |
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85 SDL_Surface *dst, SDL_Rect *dstrect) |
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86 { |
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87 return 0; |
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88 } |
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89 |
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90 static int CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst) |
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91 { |
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92 if (src->flags & SDL_SRCALPHA) return false; |
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93 if (src->flags & SDL_SRCCOLORKEY) return false; |
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94 if (src->flags & SDL_HWPALETTE ) return false; |
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95 if (dst->flags & SDL_SRCALPHA) return false; |
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96 if (dst->flags & SDL_SRCCOLORKEY) return false; |
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97 if (dst->flags & SDL_HWPALETTE ) return false; |
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98 |
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99 if (src->format->BitsPerPixel != dst->format->BitsPerPixel) return false; |
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100 if (src->format->BytesPerPixel != dst->format->BytesPerPixel) return false; |
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101 |
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102 src->map->hw_blit = HWAccelBlit; |
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103 return true; |
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104 } |
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105 |
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106 static SDL_VideoDevice *NDS_CreateDevice(int devindex) |
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107 { |
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108 SDL_VideoDevice *device=0; |
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109 |
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110 |
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111 /* Initialize all variables that we clean on shutdown */ |
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112 device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
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113 if ( device ) { |
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114 SDL_memset(device, 0, (sizeof *device)); |
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115 device->hidden = (struct SDL_PrivateVideoData *) |
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116 SDL_malloc((sizeof *device->hidden)); |
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117 } |
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118 if ( (device == NULL) || (device->hidden == NULL) ) { |
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119 SDL_OutOfMemory(); |
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120 if ( device ) { |
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121 SDL_free(device); |
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122 } |
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123 return(0); |
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124 } |
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125 SDL_memset(device->hidden, 0, (sizeof *device->hidden)); |
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126 |
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127 /* Set the function pointers */ |
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128 device->VideoInit = NDS_VideoInit; |
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129 device->ListModes = NDS_ListModes; |
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130 device->SetVideoMode = NDS_SetVideoMode; |
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131 device->CreateYUVOverlay = NULL; |
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132 device->SetColors = NDS_SetColors; |
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133 device->UpdateRects = NDS_UpdateRects; |
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134 device->VideoQuit = NDS_VideoQuit; |
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135 device->AllocHWSurface = NDS_AllocHWSurface; |
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136 device->CheckHWBlit = CheckHWBlit; |
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137 device->FillHWRect = NULL; |
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138 device->SetHWColorKey = NULL; |
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139 device->SetHWAlpha = NULL; |
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140 device->LockHWSurface = NDS_LockHWSurface; |
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141 device->UnlockHWSurface = NDS_UnlockHWSurface; |
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142 device->FlipHWSurface = NDS_FlipHWSurface; |
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143 device->FreeHWSurface = NDS_FreeHWSurface; |
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144 device->SetCaption = NULL; |
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145 device->SetIcon = NULL; |
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146 device->IconifyWindow = NULL; |
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147 device->GrabInput = NULL; |
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148 device->GetWMInfo = NULL; |
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149 device->InitOSKeymap = NDS_InitOSKeymap; |
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150 device->PumpEvents = NDS_PumpEvents; |
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151 device->info.blit_hw=1; |
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152 |
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153 device->free = NDS_DeleteDevice; |
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154 return device; |
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155 } |
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156 |
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157 VideoBootStrap NDS_bootstrap = { |
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158 NDSVID_DRIVER_NAME, "SDL NDS video driver", |
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159 NDS_Available, NDS_CreateDevice |
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160 }; |
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161 |
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162 u16* frontBuffer;// = (u16*)(0x06000000); |
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163 u16* backBuffer;// = (u16*)(0x06000000 + 256 * 256 * 2); |
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164 int NDS_VideoInit(_THIS, SDL_PixelFormat *vformat) |
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165 { |
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166 //printf("WARNING: You are using the SDL NDS video driver!\n"); |
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167 |
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168 /* Determine the screen depth (use default 8-bit depth) */ |
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169 /* we change this during the SDL_SetVideoMode implementation... */ |
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170 vformat->BitsPerPixel = 16; // mode 3 |
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171 vformat->BytesPerPixel = 2; |
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172 vformat->Rmask = 0x0000f800; |
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173 vformat->Gmask = 0x000007e0; |
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174 vformat->Bmask = 0x0000001f; |
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175 powerON(POWER_ALL); |
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176 irqInit(); |
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177 irqSet(IRQ_VBLANK, on_irq_vblank); |
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178 irqEnable(IRQ_VBLANK); |
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179 |
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180 //set the mode for 2 text layers and two extended background layers |
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181 //videoSetMode(MODE_5_2D | DISPLAY_BG3_ACTIVE); |
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182 videoSetMode(MODE_6_2D| DISPLAY_BG2_ACTIVE); |
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183 |
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184 //set the sub background up for text display (we could just print to one |
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185 //of the main display text backgrounds just as easily |
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186 videoSetModeSub(MODE_0_2D | DISPLAY_BG0_ACTIVE); //sub bg 0 will be used to print text |
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187 |
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188 //set the first two banks as background memory and the third as sub background memory |
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189 //D is not used..if you need a bigger background then you will need to map |
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190 //more vram banks consecutivly (VRAM A-D are all 0x20000 bytes in size) |
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191 //vramSetMainBanks(VRAM_A_MAIN_BG_0x6000000, VRAM_B_MAIN_BG_0x6020000,VRAM_C_SUB_BG , VRAM_D_LCD); |
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192 vramSetMainBanks(VRAM_A_MAIN_BG,VRAM_B_MAIN_BG,VRAM_C_MAIN_BG,VRAM_D_MAIN_BG); |
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193 //vramSetBankA(VRAM_A_MAIN_BG); |
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194 //vramSetBankB(VRAM_B_MAIN_BG); |
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195 //vramSetBankC(VRAM_C_MAIN_BG); |
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196 //vramSetBankD(VRAM_D_MAIN_BG); |
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197 //vramSetBankE(VRAM_E_MAIN_BG); |
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198 //vramSetBankF(VRAM_F_MAIN_BG); |
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199 //vramSetBankG(VRAM_G_MAIN_BG); |
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200 vramSetBankH(VRAM_H_SUB_BG); |
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201 vramSetBankI(VRAM_I_LCD); |
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202 |
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203 ////////////////set up text background for text///////////////////// |
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204 SUB_BG0_CR = BG_MAP_BASE(8); |
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205 |
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206 BG_PALETTE_SUB[255] = RGB15(31,31,31);//by default font will be rendered with color 255 |
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207 ///////////////set up our bitmap background/////////////////////// |
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208 |
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209 //BG3_CR = BG_BMP16_512x512; |
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210 |
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211 //these are rotation backgrounds so you must set the rotation attributes: |
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212 //these are fixed point numbers with the low 8 bits the fractional part |
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213 //this basicaly gives it a 1:1 translation in x and y so you get a nice flat bitmap |
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214 /* BG3_XDX = 1<<8; |
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215 BG3_XDY = 0; |
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216 BG3_YDX = 0; |
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217 BG3_YDY = 1<<8; |
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218 //our bitmap looks a bit better if we center it so scroll down (256 - 192) / 2 |
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219 BG3_CX = 0; |
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220 BG3_CY = 0; |
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221 */ |
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222 //consoleInit() is a lot more flexible but this gets you up and running quick |
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223 consoleInitDefault((u16*)SCREEN_BASE_BLOCK_SUB(8), (u16*)CHAR_BASE_BLOCK_SUB(0), 16); |
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224 |
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225 |
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226 frontBuffer =(u16*)(0x06000000); |
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227 //backBuffer =(u16*)(0x06000000 + 1024 * 512*2); |
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228 |
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229 //lcdSwap(); |
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230 /* We're done! */ |
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231 return(0); |
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232 } |
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233 |
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234 SDL_Rect **NDS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) |
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235 { |
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236 return (SDL_Rect **) -1; |
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237 } |
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238 |
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239 SDL_Surface *NDS_SetVideoMode(_THIS, SDL_Surface *current, |
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240 int width, int height, int bpp, Uint32 flags) |
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241 { |
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242 Uint32 Rmask, Gmask, Bmask, Amask; |
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243 |
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244 //if(width > 1024 || height > 512 || bpp > 16) |
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245 // return(NULL); |
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246 |
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247 if(bpp >8) { |
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248 bpp=16; |
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249 Rmask = 0x0000001F; |
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250 Gmask = 0x000003E0; |
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251 Bmask = 0x00007C00; |
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252 Amask = 0x00008000; |
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253 |
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254 videoSetMode(MODE_5_2D| DISPLAY_BG2_ACTIVE); |
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255 |
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256 vramSetMainBanks(VRAM_A_MAIN_BG,VRAM_B_MAIN_BG,VRAM_C_MAIN_BG,VRAM_D_MAIN_BG); |
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257 |
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258 BG2_CR = BG_BMP16_512x512; |
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259 BG2_XDX = ((width / 256) << 8) | (width % 256) ; |
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260 BG2_XDY = 0; |
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261 BG2_YDX = 0; |
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262 BG2_YDY = ((height / 192) << 8) | ((height % 192) + (height % 192) / 3) ; |
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263 BG2_CX = 0; |
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264 BG2_CY = 0; |
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265 // for (i=0;i<256*192;i++) |
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266 // frontBuffer[i] = RGB15(31,0,0)|BIT(15); |
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267 } |
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268 else |
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269 if(bpp <= 8) { |
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270 bpp=8; |
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271 Rmask = 0x00000000; |
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272 Gmask = 0x00000000; |
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273 Bmask = 0x00000000; |
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274 BG2_CR = BG_BMP8_1024x512; |
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275 BG2_XDX = ((width / 256) << 8) | (width % 256) ; |
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276 BG2_XDY = 0; |
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277 BG2_YDX = 0; |
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278 BG2_YDY = ((height / 192) << 8) | ((height % 192) + (height % 192) / 3) ; |
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279 |
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280 } |
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281 else |
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282 if(bpp < 15) bpp=15; |
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283 if(width<=256) width=256; |
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284 else |
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285 if(width<256) width=256; |
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286 if(height<=192) height=192; |
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287 else |
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288 if(height<192) height=192; |
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289 |
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290 if(bpp==8) |
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291 { |
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292 if(width<256) width=256; |
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293 if(height<192) height=192; |
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294 this->hidden->ndsmode=4; |
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295 } |
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296 |
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297 if(bpp==15) |
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298 { |
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299 if(width<256) this->hidden->ndsmode=5; |
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300 else this->hidden->ndsmode=3; |
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301 } |
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302 |
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|
303 this->hidden->buffer= frontBuffer;//NDS_VRAM_BASE; |
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304 |
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|
305 //NDS_DISPCNT = NDS_DISP_MODE(this->hidden->ndsmode)|NDS_DISP_BG2; |
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306 |
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307 //fprintf(stderr,"Setting mode %dx%d (ndsmode %d)\n", width, height,this->hidden->ndsmode); |
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308 |
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|
309 // FIXME: How do I tell that 15 bits mode is 555? |
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310 |
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|
311 SDL_memset(this->hidden->buffer, 0, 1024 * 512* ((this->hidden->ndsmode==4 || this->hidden->ndsmode==5) ? 2 : 1 ) * ((bpp+7) / 8)); |
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312 |
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|
313 /* Allocate the new pixel format for the screen */ |
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|
314 if ( ! SDL_ReallocFormat(current, bpp, Rmask, Gmask, Bmask, Amask) ) { |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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|
315 this->hidden->buffer = NULL; |
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|
316 SDL_SetError("Couldn't allocate new pixel format for requested mode"); |
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317 return(NULL); |
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318 } |
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319 |
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320 /* Set up the new mode framebuffer */ |
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parents:
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321 current->flags = flags | SDL_FULLSCREEN | SDL_HWSURFACE | (this->hidden->ndsmode > 0 ? SDL_DOUBLEBUF : 0); |
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322 this->hidden->w = current->w = width; |
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323 this->hidden->h = current->h = height; |
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324 current->pixels = frontBuffer; |
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325 |
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|
326 if (flags & SDL_DOUBLEBUF) { |
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327 this->hidden->secondbufferallocd=1; |
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328 backBuffer=(u16*)SDL_malloc(1024*512*2); |
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329 current->pixels = backBuffer; |
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330 } |
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331 if(bpp==8) |
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332 current->pitch =1024; |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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|
333 else |
3977
722db1bd733c
Oops, 512x512 in 16 bit mode
Sam Lantinga <slouken@libsdl.org>
parents:
3976
diff
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334 current->pitch =512*2; |
3976
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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335 |
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336 /* We're done */ |
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337 return(current); |
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338 } |
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339 |
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340 static int NDS_AllocHWSurface(_THIS, SDL_Surface *surface) |
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341 { |
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342 if(this->hidden->secondbufferallocd) { |
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343 //printf("double double buffer alloc\n"); |
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344 return -1; |
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345 } |
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346 //if(this->hidden->ndsmode==3) |
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347 //{ |
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348 // printf("no 2nd buffer in mode3\n"); |
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349 // return -1; |
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350 //} |
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351 //printf("second buffer\n"); |
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352 //this->hidden->secondbufferallocd=1; |
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353 //backBuffer=(u16*)malloc(1024*512*2); |
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354 //surface->pixels = backBuffer; |
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355 |
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356 return(0); |
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357 } |
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358 static void NDS_FreeHWSurface(_THIS, SDL_Surface *surface) |
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359 { |
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360 //free(backBuffer); |
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361 this->hidden->secondbufferallocd=0; |
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362 } |
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363 int z=0; |
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364 /* We need to wait for vertical retrace on page flipped displays */ |
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365 static int NDS_LockHWSurface(_THIS, SDL_Surface *surface) |
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366 { |
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|
367 /* |
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|
368 uint8* a = surface->pixels; |
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369 int i,j; |
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370 a += 5 * SCREEN_WIDTH + 5; |
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371 for( i = 0; i < 195; ++i) { |
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|
372 uint16* line = a + (SCREEN_WIDTH * i); |
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|
373 for( j = 0; j < 158; ++j) { |
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|
374 *line++ = RGB15(155,155,25); |
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|
375 } |
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|
376 } |
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|
377 */ |
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|
378 //if (z <256) |
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|
379 // BG_PALETTE[z++]=RGB15(255-z,z,255-z); |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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|
380 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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|
381 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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|
382 return(0); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
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|
383 } |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
384 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
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|
385 static void NDS_UnlockHWSurface(_THIS, SDL_Surface *surface) |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
386 { |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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|
387 return; |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
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|
388 } |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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|
389 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
390 static int NDS_FlipHWSurface(_THIS, SDL_Surface *surface) |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
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|
391 { |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
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|
392 if(this->hidden->secondbufferallocd){ |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
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|
393 while(DISP_Y!=192); |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
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|
394 while(DISP_Y==192); |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
395 //printf("flip"); |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
396 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
397 dmaCopyAsynch(backBuffer,frontBuffer,1024*512); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
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|
398 } |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
399 //printf("flip\n"); |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
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|
400 //u16* temp = surface->pixels; |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
401 //surface->pixels = frontBuffer; |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
402 //frontBuffer = temp; |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
403 /* u8* vram=BG_GFX; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
404 int x,y; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
405 for(y = 0; y < 512; y++) |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
406 dmaCopy(&frontBuffer[y*rects->w], &vram[y*512],512); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
407 //unsigned char buf; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
408 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
409 //printf("NDS_FlipHWSurface\n"); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
410 //printf("ptr now: 0x%x\n",surface->pixels); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
411 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
412 while(DISP_Y!=192); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
413 while(DISP_Y==192); |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
414 //swap |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
415 u16* temp = frontBuffer; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
416 frontBuffer = backBuffer; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
417 backBuffer = temp; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
418 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
419 //flip |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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diff
changeset
|
420 //base is 16KB and screen size is 256x256x2 (128KB) |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
421 BG2_CR ^= BG_BMP_BASE( 512 / 16 ); */ |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
422 /* |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
423 if(surface->pixels == frontBuffer)//NDS_VRAM_BASE) |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
424 { |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
425 while(DISP_Y!=192); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
426 while(DISP_Y==192); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
427 //swap |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
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428 u16* temp = backBuffer; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
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429 backBuffer = frontBuffer; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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430 frontBuffer = temp; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
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431 |
8582c6a5ca16
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432 //flip |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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433 //base is 16KB and screen size is 256x256x2 (128KB) |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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434 BG3_CR ^= BG_BMP_BASE( 128 / 16 ); |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
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435 } |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
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436 else |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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437 { |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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438 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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439 while(DISP_Y!=192); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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440 while(DISP_Y==192); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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441 //swap |
8582c6a5ca16
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442 u16* temp = frontBuffer; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
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443 frontBuffer = backBuffer; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
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444 backBuffer = temp; |
8582c6a5ca16
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445 |
8582c6a5ca16
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446 //flip |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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447 //base is 16KB and screen size is 256x256x2 (128KB) |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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448 BG3_CR ^= BG_BMP_BASE( 128 / 16 ); |
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449 |
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450 } |
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451 */ |
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452 //printf("ptr then: 0x%x\n",surface->pixels); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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453 |
8582c6a5ca16
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454 //printf("setting dispcnt to 0x%x\n",NDS_DISPCNT = NDS_DISP_MODE(this->hidden->ndsmode)|NDS_DISP_BG2| buf); |
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455 return(0); |
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456 } |
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457 |
8582c6a5ca16
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458 static void NDS_UpdateRects(_THIS, int numrects, SDL_Rect *rects) |
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459 { |
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460 //fprintf(stderr,"update\n"); |
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461 /* do nothing. */ |
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462 //dmaCopy(frontBuffer,BG_GFX,512*512); |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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463 /* |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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464 u8* vram=(u8*)BG_GFX; |
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465 int x,y; |
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466 for(y = 0; y < 512; y++) |
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467 dmaCopy(&frontBuffer[y*rects->w], &vram[y*512],512); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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468 */ |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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469 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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470 } |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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471 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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472 int NDS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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473 { |
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474 //printf("SetColors\n"); |
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475 short r,g,b; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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476 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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477 if(this->hidden->ndsmode != 4) |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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478 { |
8582c6a5ca16
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479 printf("This is not a palettized mode\n"); |
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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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480 return -1; |
8582c6a5ca16
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481 } |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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482 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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|
483 int i,j=firstcolor+ncolors; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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484 for(i=firstcolor;i<j;i++) |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
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changeset
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485 { |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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486 r=colors[i].r>>3; |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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487 g=colors[i].g>>3; |
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488 b=colors[i].b>>3; |
8582c6a5ca16
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489 BG_PALETTE[i]=RGB15(r, g, b); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
diff
changeset
|
490 } |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
491 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
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|
492 return(0); |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
493 } |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
494 |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
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changeset
|
495 /* Note: If we are terminated, this could be called in the middle of |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
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changeset
|
496 another SDL video routine -- notably UpdateRects. |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
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|
497 */ |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
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parents:
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changeset
|
498 void NDS_VideoQuit(_THIS) |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
499 { |
8582c6a5ca16
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
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changeset
|
500 } |