| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | Copyright (C) 2001 Hsieh-Fu Tsai |
| 5 | Copyright (C) 2002 Greg Haerr <greg@censoft.com> |
| 6 | |
| 7 | This library is free software; you can redistribute it and/or |
| 8 | modify it under the terms of the GNU Library General Public |
| 9 | License as published by the Free Software Foundation; either |
| 10 | version 2 of the License, or (at your option) any later version. |
| 11 | |
| 12 | This library is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | Library General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU Library General Public |
| 18 | License along with this library; if not, write to the Free |
| 19 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | |
| 21 | Sam Lantinga |
| 22 | slouken@libsdl.org |
| 23 | |
| 24 | Hsieh-Fu Tsai |
| 25 | clare@setabox.com |
| 26 | */ |
| 27 | #include "SDL_config.h" |
| 28 | |
| 29 | #include "SDL_nximage_c.h" |
| 30 | |
| 31 | void NX_NormalUpdate (_THIS, int numrects, SDL_Rect * rects) |
| 32 | { |
| 33 | int i, j, xinc, yinc, destinc, rowinc ; |
| 34 | int x, y, w, h ; |
| 35 | unsigned char * src = NULL, * dest = NULL ; |
| 36 | |
| 37 | Dprintf ("enter NX_NormalUpdate\n") ; |
| 38 | |
| 39 | /* These are the values for the incoming image */ |
| 40 | xinc = this -> screen -> format -> BytesPerPixel ; |
| 41 | yinc = this -> screen -> pitch ; |
| 42 | |
| 43 | for (i = 0; i < numrects; ++ i) { |
| 44 | x = rects [i].x, y = rects [i].y ; |
| 45 | w = rects [i].w, h = rects [i].h ; |
| 46 | src = SDL_Image + y * yinc + x * xinc ; |
| 47 | #ifdef ENABLE_NANOX_DIRECT_FB |
| 48 | if (Clientfb) { |
| 49 | if (currently_fullscreen) |
| 50 | dest = fbinfo.winpixels + (((y+OffsetY) * fbinfo.pitch) + |
| 51 | ((x+OffsetX) * fbinfo.bytespp)); |
| 52 | else |
| 53 | dest = fbinfo.winpixels + ((y * fbinfo.pitch) + (x * fbinfo.bytespp)); |
| 54 | destinc = fbinfo.pitch; |
| 55 | } |
| 56 | else |
| 57 | #endif |
| 58 | { |
| 59 | dest = Image_buff ; |
| 60 | destinc = w * xinc ; |
| 61 | } |
| 62 | rowinc = w * xinc; |
| 63 | |
| 64 | // apply GammaRamp table |
| 65 | if ((pixel_type == MWPF_TRUECOLOR0888 || pixel_type == MWPF_TRUECOLOR888) |
| 66 | && GammaRamp_R && GammaRamp_G && GammaRamp_B) { |
| 67 | Uint8 * ptrsrc ; |
| 68 | Uint8 * ptrdst ; |
| 69 | int k ; |
| 70 | |
| 71 | for (j = h; j > 0; -- j, src += yinc, dest += destinc) { |
| 72 | ptrsrc = src ; |
| 73 | ptrdst = dest ; |
| 74 | for (k = w; k > 0; -- k) { |
| 75 | *ptrdst++ = GammaRamp_B [*ptrsrc++] >> 8; |
| 76 | *ptrdst++ = GammaRamp_G [*ptrsrc++] >> 8; |
| 77 | *ptrdst++ = GammaRamp_R [*ptrsrc++] >> 8; |
| 78 | *ptrdst++ = 0; |
| 79 | ++ptrsrc; |
| 80 | } |
| 81 | } |
| 82 | } |
| 83 | #if 1 /* This is needed for microwindows 0.90 or older */ |
| 84 | else if (pixel_type == MWPF_TRUECOLOR0888 || pixel_type == MWPF_TRUECOLOR888) { |
| 85 | Uint8 * ptrsrc ; |
| 86 | Uint8 * ptrdst ; |
| 87 | int k ; |
| 88 | |
| 89 | for (j = h; j > 0; -- j, src += yinc, dest += destinc) { |
| 90 | ptrsrc = src ; |
| 91 | ptrdst = dest ; |
| 92 | for (k = w; k > 0; -- k) { |
| 93 | *ptrdst++ = *ptrsrc++; |
| 94 | *ptrdst++ = *ptrsrc++; |
| 95 | *ptrdst++ = *ptrsrc++; |
| 96 | *ptrdst++ = 0; |
| 97 | ++ptrsrc; |
| 98 | } |
| 99 | } |
| 100 | } |
| 101 | #endif |
| 102 | else |
| 103 | { |
| 104 | for (j = h; j > 0; -- j, src += yinc, dest += destinc) |
| 105 | SDL_memcpy (dest, src, rowinc) ; |
| 106 | } |
| 107 | if (!Clientfb) { |
| 108 | if (currently_fullscreen) { |
| 109 | GrArea (FSwindow, SDL_GC, x + OffsetX, y + OffsetY, w, h, Image_buff, |
| 110 | pixel_type) ; |
| 111 | } else { |
| 112 | GrArea (SDL_Window, SDL_GC, x, y, w, h, Image_buff, pixel_type) ; |
| 113 | } |
| 114 | } |
| 115 | } |
| 116 | GrFlush(); |
| 117 | |
| 118 | Dprintf ("leave NX_NormalUpdate\n") ; |
| 119 | } |
| 120 | |
| 121 | int NX_SetupImage (_THIS, SDL_Surface * screen) |
| 122 | { |
| 123 | int size = screen -> h * screen -> pitch ; |
| 124 | |
| 125 | Dprintf ("enter NX_SetupImage\n") ; |
| 126 | |
| 127 | screen -> pixels = (void *) SDL_malloc (size) ; |
| 128 | |
| 129 | if (!Clientfb) { |
| 130 | Image_buff = (unsigned char *) SDL_malloc (size) ; |
| 131 | if (screen -> pixels == NULL || Image_buff == NULL) { |
| 132 | SDL_free (screen -> pixels) ; |
| 133 | SDL_free (Image_buff) ; |
| 134 | SDL_OutOfMemory () ; |
| 135 | return -1 ; |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | SDL_Image = (unsigned char *) screen -> pixels ; |
| 140 | |
| 141 | this -> UpdateRects = NX_NormalUpdate ; |
| 142 | |
| 143 | Dprintf ("leave NX_SetupImage\n") ; |
| 144 | return 0 ; |
| 145 | } |
| 146 | |
| 147 | void NX_DestroyImage (_THIS, SDL_Surface * screen) |
| 148 | { |
| 149 | Dprintf ("enter NX_DestroyImage\n") ; |
| 150 | |
| 151 | if (SDL_Image) SDL_free (SDL_Image) ; |
| 152 | if (Image_buff) SDL_free (Image_buff) ; |
| 153 | if (screen) screen -> pixels = NULL ; |
| 154 | |
| 155 | Dprintf ("leave NX_DestroyImage\n") ; |
| 156 | } |
| 157 | |
| 158 | int NX_ResizeImage (_THIS, SDL_Surface * screen, Uint32 flags) |
| 159 | { |
| 160 | int retval ; |
| 161 | GR_SCREEN_INFO si ; |
| 162 | |
| 163 | Dprintf ("enter NX_ResizeImage\n") ; |
| 164 | |
| 165 | NX_DestroyImage (this, screen) ; |
| 166 | retval = NX_SetupImage (this, screen) ; |
| 167 | |
| 168 | GrGetScreenInfo (& si) ; |
| 169 | OffsetX = (si.cols - screen -> w) / 2 ; |
| 170 | OffsetY = (si.rows - screen -> h) / 2 ; |
| 171 | |
| 172 | #ifdef ENABLE_NANOX_DIRECT_FB |
| 173 | if (Clientfb) { |
| 174 | /* Get current window position and fb pointer*/ |
| 175 | if (currently_fullscreen) |
| 176 | GrGetWindowFBInfo(FSwindow, &fbinfo); |
| 177 | else |
| 178 | GrGetWindowFBInfo(SDL_Window, &fbinfo); |
| 179 | } |
| 180 | #endif |
| 181 | Dprintf ("leave NX_ResizeImage\n") ; |
| 182 | return retval ; |
| 183 | } |
| 184 | |
| 185 | void NX_RefreshDisplay (_THIS) |
| 186 | { |
| 187 | Dprintf ("enter NX_RefreshDisplay\n") ; |
| 188 | |
| 189 | // Don't refresh a display that doesn't have an image (like GL) |
| 190 | if (! SDL_Image) { |
| 191 | return; |
| 192 | } |
| 193 | |
| 194 | #ifdef ENABLE_NANOX_DIRECT_FB |
| 195 | if (Clientfb) { |
| 196 | int j; |
| 197 | char *src, *dest = NULL; |
| 198 | int xinc, yinc, rowinc; |
| 199 | |
| 200 | GrGetWindowFBInfo(SDL_Window, &fbinfo); |
| 201 | |
| 202 | xinc = this -> screen -> format -> BytesPerPixel ; |
| 203 | yinc = this -> screen -> pitch ; |
| 204 | |
| 205 | src = SDL_Image; |
| 206 | if (currently_fullscreen) |
| 207 | dest = fbinfo.winpixels + ((OffsetY * fbinfo.pitch) + |
| 208 | (OffsetX * fbinfo.bytespp)); |
| 209 | else |
| 210 | dest = fbinfo.winpixels; |
| 211 | rowinc = xinc * this -> screen -> w; |
| 212 | |
| 213 | for (j = this -> screen -> h; j > 0; -- j, src += yinc, dest += fbinfo.pitch) |
| 214 | SDL_memcpy (dest, src, rowinc) ; |
| 215 | } |
| 216 | else |
| 217 | #endif |
| 218 | { |
| 219 | if (currently_fullscreen) { |
| 220 | GrArea (FSwindow, SDL_GC, OffsetX, OffsetY, this -> screen -> w, |
| 221 | this -> screen -> h, SDL_Image, pixel_type) ; |
| 222 | } else { |
| 223 | GrArea (SDL_Window, SDL_GC, 0, 0, this -> screen -> w, |
| 224 | this -> screen -> h, SDL_Image, pixel_type) ; |
| 225 | } |
| 226 | } |
| 227 | GrFlush(); |
| 228 | |
| 229 | Dprintf ("leave NX_RefreshDisplay\n") ; |
| 230 | } |