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annotate src/video/nds/SDL_ndsvideo.c @ 4269:60db3d01cb3a SDL-1.2

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I just tested DGA mouse motion with X.org 1.6.0 and it's working fine, with evdev and the G5 mouse. It's not creating a ton of events here.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 30 Sep 2009 04:49:57 +0000
parents a1b03ba2fcd0
children
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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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diff changeset
245 // return(NULL);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
246
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
247 if(bpp >8) {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
248 bpp=16;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
249 Rmask = 0x0000001F;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
250 Gmask = 0x000003E0;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
251 Bmask = 0x00007C00;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
252 Amask = 0x00008000;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
253
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
254 videoSetMode(MODE_5_2D| DISPLAY_BG2_ACTIVE);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
255
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
256 vramSetMainBanks(VRAM_A_MAIN_BG,VRAM_B_MAIN_BG,VRAM_C_MAIN_BG,VRAM_D_MAIN_BG);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
257
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
258 BG2_CR = BG_BMP16_512x512;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
259 BG2_XDX = ((width / 256) << 8) | (width % 256) ;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
260 BG2_XDY = 0;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
261 BG2_YDX = 0;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
262 BG2_YDY = ((height / 192) << 8) | ((height % 192) + (height % 192) / 3) ;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
263 BG2_CX = 0;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
264 BG2_CY = 0;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
265 // for (i=0;i<256*192;i++)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
266 // frontBuffer[i] = RGB15(31,0,0)|BIT(15);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
267 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
268 else
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
269 if(bpp <= 8) {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
270 bpp=8;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
271 Rmask = 0x00000000;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
272 Gmask = 0x00000000;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
273 Bmask = 0x00000000;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
274 BG2_CR = BG_BMP8_1024x512;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
275 BG2_XDX = ((width / 256) << 8) | (width % 256) ;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
276 BG2_XDY = 0;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
277 BG2_YDX = 0;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
278 BG2_YDY = ((height / 192) << 8) | ((height % 192) + (height % 192) / 3) ;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
279
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
280 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
281 else
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
282 if(bpp < 15) bpp=15;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
283 if(width<=256) width=256;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
284 else
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
285 if(width<256) width=256;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
286 if(height<=192) height=192;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
287 else
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
288 if(height<192) height=192;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
289
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
290 if(bpp==8)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
291 {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
292 if(width<256) width=256;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
293 if(height<192) height=192;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
294 this->hidden->ndsmode=4;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
295 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
296
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
297 if(bpp==15)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
298 {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
299 if(width<256) this->hidden->ndsmode=5;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
300 else this->hidden->ndsmode=3;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
301 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
302
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
303 this->hidden->buffer= frontBuffer;//NDS_VRAM_BASE;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
304
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
305 //NDS_DISPCNT = NDS_DISP_MODE(this->hidden->ndsmode)|NDS_DISP_BG2;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
306
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
307 //fprintf(stderr,"Setting mode %dx%d (ndsmode %d)\n", width, height,this->hidden->ndsmode);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
308
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
309 // FIXME: How do I tell that 15 bits mode is 555?
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
310
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
311 SDL_memset(this->hidden->buffer, 0, 1024 * 512* ((this->hidden->ndsmode==4 || this->hidden->ndsmode==5) ? 2 : 1 ) * ((bpp+7) / 8));
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
312
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
313 /* Allocate the new pixel format for the screen */
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
314 if ( ! SDL_ReallocFormat(current, bpp, Rmask, Gmask, Bmask, Amask) ) {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
315 this->hidden->buffer = NULL;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
316 SDL_SetError("Couldn't allocate new pixel format for requested mode");
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
317 return(NULL);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
318 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
319
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
320 /* Set up the new mode framebuffer */
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
321 current->flags = flags | SDL_FULLSCREEN | SDL_HWSURFACE | (this->hidden->ndsmode > 0 ? SDL_DOUBLEBUF : 0);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
322 this->hidden->w = current->w = width;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
323 this->hidden->h = current->h = height;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
324 current->pixels = frontBuffer;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
325
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
326 if (flags & SDL_DOUBLEBUF) {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
327 this->hidden->secondbufferallocd=1;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
328 backBuffer=(u16*)SDL_malloc(1024*512*2);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
329 current->pixels = backBuffer;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
330 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
331 if(bpp==8)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
332 current->pitch =1024;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
333 else
3977
722db1bd733c Oops, 512x512 in 16 bit mode
Sam Lantinga <slouken@libsdl.org>
parents: 3976
diff changeset
334 current->pitch =512*2;
3976
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
335
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
336 /* We're done */
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
337 return(current);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
338 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
339
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
340 static int NDS_AllocHWSurface(_THIS, SDL_Surface *surface)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
341 {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
342 if(this->hidden->secondbufferallocd) {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
343 //printf("double double buffer alloc\n");
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
344 return -1;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
345 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
346 //if(this->hidden->ndsmode==3)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
347 //{
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
348 // printf("no 2nd buffer in mode3\n");
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
349 // return -1;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
350 //}
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
351 //printf("second buffer\n");
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
352 //this->hidden->secondbufferallocd=1;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
353 //backBuffer=(u16*)malloc(1024*512*2);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
354 //surface->pixels = backBuffer;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
355
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
356 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
357 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
358 static void NDS_FreeHWSurface(_THIS, SDL_Surface *surface)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
359 {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
360 //free(backBuffer);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
361 this->hidden->secondbufferallocd=0;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
362 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
363 int z=0;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
364 /* We need to wait for vertical retrace on page flipped displays */
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
365 static int NDS_LockHWSurface(_THIS, SDL_Surface *surface)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
366 {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
367 /*
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
368 uint8* a = 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
369 int i,j;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
370 a += 5 * SCREEN_WIDTH + 5;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
371 for( i = 0; i < 195; ++i) {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
372 uint16* line = a + (SCREEN_WIDTH * i);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
373 for( j = 0; j < 158; ++j) {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
374 *line++ = RGB15(155,155,25);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
375 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
376 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
377 */
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
378 //if (z <256)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
379 // BG_PALETTE[z++]=RGB15(255-z,z,255-z);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
380
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
381
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
382 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
383 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
384
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
385 static void NDS_UnlockHWSurface(_THIS, SDL_Surface *surface)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
386 {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
387 return;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
388 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
389
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
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)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
391 {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
392 if(this->hidden->secondbufferallocd){
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
393 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
394 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
395 //printf("flip");
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
396
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
397 dmaCopyAsynch(backBuffer,frontBuffer,1024*512);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
398 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
399 //printf("flip\n");
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
400 //u16* temp = 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
401 //surface->pixels = frontBuffer;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
402 //frontBuffer = temp;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
403 /* u8* vram=BG_GFX;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
404 int x,y;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
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)
Sam Lantinga <slouken@libsdl.org>
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)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
407 //unsigned char buf;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
408
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
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)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
413 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
414 //swap
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
415 u16* temp = frontBuffer;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
416 frontBuffer = backBuffer;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
417 backBuffer = temp;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
418
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
419 //flip
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
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)
Sam Lantinga <slouken@libsdl.org>
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)
Sam Lantinga <slouken@libsdl.org>
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)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
424 {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
425 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
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)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
428 u16* temp = backBuffer;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
429 backBuffer = frontBuffer;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
430 frontBuffer = temp;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
431
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
432 //flip
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
433 //base is 16KB and screen size is 256x256x2 (128KB)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
434 BG3_CR ^= BG_BMP_BASE( 128 / 16 );
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
435 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
436 else
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
437 {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
438
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
439 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
440 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
441 //swap
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
442 u16* temp = frontBuffer;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
443 frontBuffer = backBuffer;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
444 backBuffer = temp;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
445
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
446 //flip
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
447 //base is 16KB and screen size is 256x256x2 (128KB)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
448 BG3_CR ^= BG_BMP_BASE( 128 / 16 );
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
449
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
450 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
451 */
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
452 //printf("ptr then: 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
453
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
454 //printf("setting dispcnt to 0x%x\n",NDS_DISPCNT = NDS_DISP_MODE(this->hidden->ndsmode)|NDS_DISP_BG2| buf);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
455 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
456 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
457
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
458 static void NDS_UpdateRects(_THIS, int numrects, SDL_Rect *rects)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
459 {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
460 //fprintf(stderr,"update\n");
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
461 /* do nothing. */
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
462 //dmaCopy(frontBuffer,BG_GFX,512*512);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
463 /*
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
464 u8* vram=(u8*)BG_GFX;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
465 int x,y;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
466 for(y = 0; y < 512; y++)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
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)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
468 */
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
469
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
470 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
471
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
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)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
473 {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
474 //printf("SetColors\n");
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
475 short r,g,b;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
476
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
477 if(this->hidden->ndsmode != 4)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
478 {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
479 printf("This is not a palettized mode\n");
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
480 return -1;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
481 }
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
482
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
483 int i,j=firstcolor+ncolors;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
484 for(i=firstcolor;i<j;i++)
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
485 {
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
486 r=colors[i].r>>3;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
487 g=colors[i].g>>3;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
488 b=colors[i].b>>3;
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
489 BG_PALETTE[i]=RGB15(r, g, b);
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
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:
diff changeset
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:
diff 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)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
496 another SDL video routine -- notably UpdateRects.
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
497 */
8582c6a5ca16 Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
Sam Lantinga <slouken@libsdl.org>
parents:
diff 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:
diff changeset
500 }