1 /* Project 16 Source Code~
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2 * Copyright (C) 2012-2016 sparky4 & pngwen & andrius4669 & joncampbell123 & yakui-lover
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4 * This file is part of Project 16.
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6 * Project 16 is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 3 of the License, or
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9 * (at your option) any later version.
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11 * Project 16 is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program. If not, see <http://www.gnu.org/licenses/>, or
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18 * write to the Free Software Foundation, Inc., 51 Franklin Street,
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19 * Fifth Floor, Boston, MA 02110-1301 USA.
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26 #include "src/lib/16_vl.h"
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28 byte far* VGA=(byte far*) 0xA0000000; /* this points to video memory. */
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30 static void fadePalette(sbyte fade, sbyte start, word iter, byte *palette);
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31 static byte tmppal[PAL_SIZE];
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33 /////////////////////////////////////////////////////////////////////////////
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35 // setvideo() - This function Manages the video modes //
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37 /////////////////////////////////////////////////////////////////////////////
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38 void VGAmodeX(sword vq, boolean cmem, global_game_variables_t *gv)
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44 case 0: // deinit the video
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45 // change to the video mode we were in before we switched to mode 13h
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48 in.h.al = gv->video.old_mode;
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49 int86(0x10, &in, &out);
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51 default: // init the video
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52 // get old video mode
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54 //int86(0x10, &in, &out);
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55 gv->video.old_mode = vgaGetMode();//out.h.al;
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57 modexEnter(vq, cmem, gv);
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63 vgaSetMode(byte mode)
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67 regs.h.ah = SET_MODE;
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69 int86(VIDEO_INT, ®s, ®s);
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70 //int10_setmode(mode);
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73 //---------------------------------------------------
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75 // Use the bios to get the current video mode
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78 byte/*FIXME: why long? "long" is 32-bit datatype, VGA modes are 8-bit numbers. */
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81 return int10_getmode();
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84 /* -========================= Entry Points ==========================- */
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85 void modexEnter(sword vq, boolean cmem, global_game_variables_t *gv)
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88 struct vga_mode_params cm;
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91 vgaSetMode(VGA_256_COLOR_MODE);
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92 vga_enable_256color_modex();
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94 update_state_from_vga();
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95 vga_read_crtc_mode(&cm);
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97 /* reprogram the CRT controller */
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98 //outp(CRTC_INDEX, 0x11); /* VSync End reg contains register write prot */
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99 //outp(CRTC_DATA, 0x7f); /* get current write protect on varios regs */
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104 //CRTParmCount = sizeof(ModeX_320x240regs) / sizeof(ModeX_320x240regs[0]);
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105 /*for(i=0; i<CRTParmCount; i++) {
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106 outpw(CRTC_INDEX, ModeX_320x240regs[i]);
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108 /* width and height */
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109 gv->video.page[0].sw = vga_state.vga_width = 320; // VGA lib currently does not update this
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110 gv->video.page[0].sh = vga_state.vga_height = 240; // VGA lib currently does not update this
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111 /* virtual width and height. match screen, at first */
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112 gv->video.page[0].height = gv->video.page[0].sh;
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113 gv->video.page[0].width = gv->video.page[0].sw;
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115 // mode X BYTE mode
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118 // 320x240 mode 60Hz
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119 cm.horizontal_total=0x5f + 5; /* CRTC[0] -5 */
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120 cm.horizontal_display_end=0x4f + 1; /* CRTC[1] -1 */
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121 cm.horizontal_blank_start=0x50 + 1; /* CRTC[2] */
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122 // cm.horizontal_blank_end=0x82 + 1; /* CRTC[3] bit 0-4 & CRTC[5] bit 7 *///skewing ^^;
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123 cm.horizontal_start_retrace=0x54;/* CRTC[4] */
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124 cm.horizontal_end_retrace=0x80; /* CRTC[5] bit 0-4 */
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125 //cm.horizontal_start_delay_after_total=0x3e; /* CRTC[3] bit 5-6 */
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126 //cm.horizontal_start_delay_after_retrace=0x41; /* CRTC[5] bit 5-6 */
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127 cm.vertical_total = 0x20D + 2;
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128 cm.vertical_start_retrace = 0x1EA;
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129 cm.vertical_end_retrace = 0x1EC;
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130 cm.vertical_display_end = 480;
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131 cm.vertical_blank_start = 0x1E7 + 1;
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132 cm.vertical_blank_end = 0x206 + 1;
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133 cm.clock_select = 0; /* misc register = 0xE3 25MHz */
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136 cm.offset = (vga_state.vga_width / (4 * 2)); // 320 wide (40 x 4 pixel groups x 2)
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138 case 2: // TODO: 160x120 according to ModeX_160x120regs
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140 case 3: // TODO: 160x120 according to ModeX_320x200regs
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142 case 4: // TODO: 160x120 according to ModeX_192x144regs
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144 case 5: // TODO: 160x120 according to ModeX_256x192regs
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150 vga_state.vga_stride = cm.offset * 2;
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151 vga_write_crtc_mode(&cm,0);
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153 /* clear video memory */
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157 /* clear video memory */
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158 dword far*ptr=(dword far*)vga_state.vga_graphics_ram;//VGA; /* used for faster screen clearing */
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159 vga_write_sequencer(2/*map mask register*/,0xf/*all 4 planes*/);
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160 for(i = 0;i < 0x4000; i++) ptr[i] = 0x0000; // 0x4000 x dword = 64KB
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165 // gv->video.page[0].tw = gv->video.page[0].sw/TILEWH;
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166 // gv->video.page[0].th = gv->video.page[0].sh/TILEWH;
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168 //TODO MAKE FLEXIBLE~
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169 // gv->video.page[0].tilemidposscreenx = gv->video.page[0].tilesw;
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170 // gv->video.page[0].tilemidposscreeny = (gv->video.page[0].tilesh/2)+1;
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175 /* VGAmodeX restores original mode and palette */
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176 vgaSetMode(TEXT_MODE);
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180 modexDefaultPage(page_t *p)
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184 /* default page values */
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186 //page.data = (byte far *)(vga_state.vga_graphics_ram);
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187 page.data = (vga_state.vga_graphics_ram);
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192 page.width = p->sw+TILEWHD;
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193 page.height = p->sh+TILEWHD;
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194 page.tw = page.sw/TILEWH;
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195 page.th = page.sh/TILEWH;
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196 page.tilesw=page.width/TILEWH;
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197 page.tilesh=page.height/TILEWH;
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198 page.tilemidposscreenx = page.tw/2;
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199 page.tilemidposscreeny = (page.th/2)+1;
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200 page.stridew=page.width/4;
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201 page.pagesize = (word)(page.stridew)*page.height;
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202 page.pi=page.width*4;
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208 /* returns the next page in contiguous memory
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209 * the next page will be the same size as p, by default
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212 modexNextPage(page_t *p) {
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215 result.data = p->data + (p->pagesize);
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216 result.dx = p->dx; // not used anymore we use page[0].dx
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217 result.dy = p->dy; // not used anymore we use page[0].dy
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220 result.width = p->width;
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221 result.height = p->height;
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224 result.tilesw = p->tilesw;
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225 result.tilesh = p->tilesh;
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226 result.stridew=p->stridew;
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227 result.pagesize = p->pagesize;
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228 result.pi=result.width*4;
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229 result.id = p->id+1;
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234 //next page with defined dimentions~
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236 modexNextPageFlexibleSize(page_t *p, word x, word y)
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240 result.data = p->data + (p->pagesize); /* compute the offset */
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241 result.dx = 0; // not used anymore we use page[0].dx
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242 result.dy = 0; // not used anymore we use page[0].dy
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247 result.tw = result.sw/TILEWH;
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248 result.th = result.sh/TILEWH;
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249 result.tilesw=result.width/TILEWH;
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250 result.tilesh=result.height/TILEWH;
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251 result.id = p->id+1;
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252 result.stridew=p->sw/4;//result.width/4;
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253 result.pagesize = (word)(result.stridew)*result.height;
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257 result.pi=p->width*4;
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267 void modexCalcVmemRemain(video_t *video)
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270 //printf("\n\n 1st vmem_remain=%u\n", video->vmem_remain);
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271 for(i=0; i<video->num_of_pages; i++)
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273 video->vmem_remain-=video->page[i].pagesize;
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274 //printf(" [%u], video->page[%u].pagesize=%u\n", i, i, video->page[i].pagesize);
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275 //printf(" [%u], vmem_remain=%u\n", i, video->vmem_remain);
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279 void modexHiganbanaPageSetup(video_t *video)
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281 video->vmem_remain=65535U;
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282 video->num_of_pages=0;
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283 (video->page[0]) = modexDefaultPage(&(video->page[0])); video->num_of_pages++; //video->page[0].width += (TILEWHD); video->page[0].height += (TILEWHD);
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284 (video->page[1]) = modexNextPage(&(video->page[0])); video->num_of_pages++;
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285 //0000 (video->page[2]) = modexNextPageFlexibleSize(&(video->page[1]), (video->page[0]).width, TILEWH*4); video->num_of_pages++;
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286 //0000 (video->page[3]) = (video->page[2]); video->num_of_pages++;
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287 (video->page[2]) = modexNextPageFlexibleSize(&(video->page[1]), TILEWH*4, TILEWH*4); video->num_of_pages++;
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288 // (video->page[3]) = modexNextPageFlexibleSize(&(video->page[2]), video->page[0].width, 176); video->num_of_pages++;
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289 (video->page[3]) = modexNextPageFlexibleSize(&(video->page[2]), video->page[0].sw, 208); video->num_of_pages++;
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290 // (video->page[2]) = modexNextPageFlexibleSize(&(video->page[1]), video->page[0].width, 172); video->num_of_pages++;
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291 // (video->page[3]) = modexNextPageFlexibleSize(&(video->page[2]), 72, 128); video->num_of_pages++;
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292 modexCalcVmemRemain(video);
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296 //setup the buffersize
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297 video->page[0].dx=video->page[0].dy=
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298 video->page[1].dx=video->page[1].dy=TILEWH; // 1 tile size buffer
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299 video->page[2].dx=video->page[2].dy=
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300 video->page[3].dx=video->page[3].dy=0; // cache pages are buffer wwww
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304 // move page to appropriate part and show it
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307 modexShowPage(page_t *page) {
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308 word high_address, low_address, offset;
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311 /* calculate offset */
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312 offset = (word) page->data;
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313 offset += page[0].dy * (page->width >> 2 );
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314 offset += page[0].dx >> 2;
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316 /* calculate crtcOffset according to virtual width */
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317 crtcOffset = page->width >> 3;
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319 high_address = HIGH_ADDRESS | (offset & 0xff00);
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320 low_address = LOW_ADDRESS | (offset << 8);
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322 /* wait for appropriate timing and then program CRTC */
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323 //+=+= while ((inp(INPUT_STATUS_1) & DISPLAY_ENABLE));
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324 outpw(CRTC_INDEX, high_address);
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325 outpw(CRTC_INDEX, low_address);
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326 outp(CRTC_INDEX, 0x13);
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327 outp(CRTC_DATA, crtcOffset);
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329 /* wait for one retrace */
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330 //+=+= while (!(inp(INPUT_STATUS_1) & VRETRACE));
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332 /* do PEL panning here */
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333 outp(AC_INDEX, 0x33);
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334 outp(AC_INDEX, (page[0].dx & 0x03) << 1);
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338 //args: page, vertical sync switch, screen resolution switch, page0 switch
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340 VL_ShowPage(page_t *page, boolean vsync, boolean sr) {
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341 word high_address, low_address, offset;
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344 /* calculate offset */
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345 offset = (word) page->data;
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346 offset += page[0].dy * (page->width >> 2 );
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347 offset += page[0].dx >> 2;
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349 /* calculate crtcOffset according to virtual width */
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353 crtcOffset = page->sw >> 3;
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357 crtcOffset = page->width >> 3;
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361 high_address = HIGH_ADDRESS | (offset & 0xff00);
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362 low_address = LOW_ADDRESS | (offset << 8);
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364 /* wait for appropriate timing and then program CRTC */
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365 if(vsync) while ((inp(INPUT_STATUS_1) & DISPLAY_ENABLE));
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366 outpw(CRTC_INDEX, high_address);
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367 outpw(CRTC_INDEX, low_address);
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368 outp(CRTC_INDEX, 0x13);
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369 outp(CRTC_DATA, crtcOffset);
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371 /* wait for one retrace */
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372 if(vsync) while (!(inp(INPUT_STATUS_1) & VRETRACE));
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374 /* do PEL panning here */
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375 outp(AC_INDEX, 0x33);
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376 outp(AC_INDEX, (page[0].dx & 0x03) << 1);
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379 //=============================================================================
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382 modexPanPage(page_t *page, int dx, int dy) {
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388 modexSelectPlane(byte plane) {
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389 outp(SC_INDEX, MAP_MASK); /* select plane */
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390 outp(SC_DATA, plane);
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394 modexClearRegion(page_t *page, int x, int y, int w, int h, byte color) {
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395 word pageOff = (word) page->data;
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396 word xoff=x/4; /* xoffset that begins each row */
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397 word scanCount=w/4; /* number of iterations per row (excluding right clip)*/
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398 word poffset = pageOff + y*(page->stridew) + xoff; /* starting offset */
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399 word nextRow = page->stridew-scanCount-1; /* loc of next row */
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400 byte lclip[] = {0x0f, 0x0e, 0x0c, 0x08}; /* clips for rectangles not on 4s */
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401 byte rclip[] = {0x00, 0x01, 0x03, 0x07};
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402 byte left = lclip[x&0x03];
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403 byte right = rclip[(x+w)&0x03];
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405 /* handle the case which requires an extra group */
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406 if((x & 0x03) && !((x+w) & 0x03)) {
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410 //printf("modexClearRegion(x=%u, y=%u, w=%u, h=%u, left=%u, right=%u)\n", x, y, w, h, left, right);
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421 MOV AX, SCREEN_SEG ; go to the VGA memory
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423 MOV DI, poffset ; go to the first pixel
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424 MOV DX, SC_INDEX ; point to the map mask
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428 MOV AL, color ; get ready to write colors
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430 MOV CX, scanCount ; count the line
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431 MOV BL, AL ; remember color
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432 MOV AL, left ; do the left clip
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433 OUT DX, AL ; set the left clip
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434 MOV AL, BL ; restore color
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435 STOSB ; write the color
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437 JZ SCAN_DONE ; handle 1 group stuff
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439 ;-- write the main body of the scanline
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440 MOV BL, AL ; remember color
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441 MOV AL, 0x0f ; write to all pixels
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443 MOV AL, BL ; restore color
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444 REP STOSB ; write the color
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446 MOV BL, AL ; remeber color
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448 OUT DX, AL ; do the right clip
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449 MOV AL, BL ; restore color
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450 STOSB ; write pixel
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451 ADD DI, nextRow ; go to the next row
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465 /* moved to src/lib/modex16/16render.c */
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467 /* copy a region of video memory from one page to another.
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468 * It assumes that the left edge of the tile is the same on both
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469 * regions and the memory areas do not overlap.
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472 modexCopyPageRegion(page_t *dest, page_t *src,
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475 word width, word height)
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477 word doffset = (word)dest->data + dy*(dest->stridew) + dx/4;
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478 word soffset = (word)src->data + sy*(src->stridew) + sx/4;
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479 word scans = vga_state.vga_stride; //++++0000 the quick and dirty fix of the major issue with p16 video display wwww
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480 word nextSrcRow = src->stridew - scans - 1;
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481 word nextDestRow = dest->stridew - scans - 1;
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482 byte lclip[] = {0x0f, 0x0e, 0x0c, 0x08}; /* clips for rectangles not on 4s */
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483 byte rclip[] = {0x00, 0x01, 0x03, 0x07};
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484 byte left = lclip[sx&0x03];
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485 byte right = rclip[(sx+width)&0x03];
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487 /* handle the case which requires an extra group */
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488 if((sx & 0x03) && !((sx+width) & 0x03)) {
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492 // printf("modexCopyPageRegion(src->stridew=%u, dest->stridew=%u, sx=%u, sy=%u, dx=%u, dy=%u, width=%u, height=%u, left=%u, right=%u)\n", src->stridew, dest->stridew, sx, sy, dx, dy, width, height, left, right);
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504 MOV AX, SCREEN_SEG ; work in the vga space
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509 MOV DX, GC_INDEX ; turn off cpu bits
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513 MOV AX, SC_INDEX ; point to the mask register
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523 MOV CX, scans ; the number of latches
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525 MOV AL, left ; do the left column
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530 MOV AL, 0fh ; do the inner columns
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532 REP MOVSB ; copy the pixels
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534 MOV AL, right ; do the right column
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539 MOV AX, SI ; go the start of the next row
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540 ADD AX, nextSrcRow ;
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543 ADD AX, nextDestRow ;
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546 DEC height ; do the rest of the actions
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549 MOV DX, GC_INDEX+1 ; go back to CPU data
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550 MOV AL, 0ffh ; none from latches
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565 /* fade and flash */
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567 modexFadeOn(word fade, byte *palette) {
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568 fadePalette(-fade, 64, 64/fade+1, palette);
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573 modexFadeOff(word fade, byte *palette) {
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574 fadePalette(fade, 0, 64/fade+1, palette);
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579 modexFlashOn(word fade, byte *palette) {
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580 fadePalette(fade, -64, 64/fade+1, palette);
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585 modexFlashOff(word fade, byte *palette) {
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586 fadePalette(-fade, 0, 64/fade+1, palette);
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591 fadePalette(sbyte fade, sbyte start, word iter, byte *palette) {
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595 /* handle the case where we just update */
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597 modexPalUpdate1(palette);
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601 while(iter > 0) { /* FadeLoop */
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602 for(i=0; i<PAL_SIZE; i++) { /* loadpal_loop */
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603 tmppal[i] = palette[i] - dim;
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604 if(tmppal[i] > 127) {
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606 } else if(tmppal[i] > 63) {
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610 modexPalUpdate1(tmppal);
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617 /* save and load */
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619 modexPalSave(byte *palette) {
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622 outp(PAL_READ_REG, 0); /* start at palette entry 0 */
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623 for(i=0; i<PAL_SIZE; i++) {
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624 palette[i] = inp(PAL_DATA_REG); /* read the palette data */
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632 ptr = malloc(PAL_SIZE);
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634 /* handle errors */
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636 printf("Could not allocate palette.\n");
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645 modexLoadPalFile(byte *filename, byte **palette) {
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649 /* free the palette if it exists */
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654 /* allocate the new palette */
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655 *palette = modexNewPal();
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657 /* open the file */
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658 file = fopen(filename, "rb");
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660 printf("Could not open palette file: %s\n", filename);
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664 /* read the file */
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666 while(!feof(file)) {
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667 *ptr++ = fgetc(file);
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674 void VL_LoadPalFile(const char *filename, byte *palette)
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678 fd = open(filename,O_RDONLY|O_BINARY);
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682 read(fd,palette,768);
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685 vga_palette_lseek(0);
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686 for (i=0;i < 256;i++) vga_palette_write(palette[(i*3)+0]>>2,palette[(i*3)+1]>>2,palette[(i*3)+2]>>2);
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692 modexSavePalFile(char *filename, byte *pal) {
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696 /* open the file for writing */
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697 file = fopen(filename, "wb");
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699 printf("Could not open %s for writing\n", filename);
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703 /* write the data to the file */
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704 fwrite(pal, 1, PAL_SIZE, file);
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712 fadePalette(-1, 64, 1, tmppal);
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718 fadePalette(-1, -64, 1, tmppal);
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724 modexPalUpdate(bitmap_t *bmp, word *i, word qp, word aqoffset)
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726 byte *p = bmp->palette;
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730 static word a[PAL_SIZE]; //palette array of change values!
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731 word z=0, aq=0, aa=0, pp=0;
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733 //modexWaitBorder();
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734 vga_wait_for_vsync();
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737 memset(a, -1, sizeof(a));
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738 outp(PAL_WRITE_REG, 0); /* start at the beginning of palette */
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748 // printf("q: %02d\n", (q));
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749 // printf("qq: %02d\n", (qq));
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750 //printf(" (*i)-q=%02d\n", (*i)-q);
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751 outp(PAL_WRITE_REG, qq); /* start at the beginning of palette */
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753 if((*i)<PAL_SIZE/2 && w==0)
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755 for(; (*i)<PAL_SIZE/2; (*i)++)
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757 //if(i%3==0 && (p[i+5]==p[i+4] && p[i+4]==p[i+3] && p[i+3]==p[i+2] && p[i+2]==p[i+1] && p[i+1]==p[i] && p[i+5]==p[i]))
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758 //____ if((qp>0)&&((*i)-q)%3==0 && (p[((*i)-q)]==p[((*i)-q)+3] && p[((*i)-q)+1]==p[((*i)-q)+4] && p[((*i)-q)+2]==p[((*i)-q)+5])) outp(PAL_DATA_REG, p[(*i)-q]); else
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759 if(((((*i)-q)%3==0)) && (p[((*i)-q)]==p[((*i)-q)+3] && p[((*i)-q)+1]==p[((*i)-q)+4] && p[((*i)-q)+2]==p[((*i)-q)+5]))
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764 else if(qp>0 && (*i)>=(qp) && (*i)<((qp)+3))
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766 //printf("qp=%d\n", qp);
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767 //printf(" (*i)=%d a[%d]=%d\n", (*i), qp, a[qp]);
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768 printf(" %d's color=%d\n", (*i), (a[qp])-(bmp->offset*3)+qp);
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769 //outp(PAL_DATA_REG, p[((a[qp])-(bmp->offset*3)+qp)]);// fix this shit!
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770 if((*i)+1==(qp)+3){ w++; /*(*i)++;*/ break; }
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774 if(bmp->offset==0 && (*i)<3 && q==0) outp(PAL_DATA_REG, 0);
\r
776 if(qp==0) outp(PAL_DATA_REG, p[(*i)-q]);
\r
777 else{ //outp(PAL_DATA_REG, p[((*i)-(bmp->offset*3)+qp)]);
\r
778 printf("p[]=%d qp=%d p[]-qp=%d\n", ((*i)-(bmp->offset*3)), qp, ((*i)-(bmp->offset*3))+qp); }
\r
781 //if(qp>0) printf("qp=%d\n", qp);
\r
782 //if(qp>0) printf(" (*i)=%d\n", (*i)/3);
\r
784 //modexWaitBorder(); /* waits one retrace -- less flicker */
\r
785 vga_wait_for_vsync();
\r
786 if((*i)>=PAL_SIZE/2 && w==0)
\r
788 for(; (*i)<PAL_SIZE; (*i)++)
\r
790 //____ if((qp>0)&&((*i)-q)%3==0 && (p[((*i)-q)]==p[((*i)-q)+3] && p[((*i)-q)+1]==p[((*i)-q)+4] && p[((*i)-q)+2]==p[((*i)-q)+5])) outp(PAL_DATA_REG, p[(*i)-q]); else
\r
791 if(((((*i)-q)%3==0)) && (p[((*i)-q)]==p[((*i)-q)+3] && p[((*i)-q)+1]==p[((*i)-q)+4] && p[((*i)-q)+2]==p[((*i)-q)+5]))
\r
796 else if(qp>0 && (*i)>=(qp) && (*i)<((qp)+3))
\r
798 //printf("qp=%d\n", qp);
\r
799 //printf(" (*i)=%d a[%d]=%d\n", (*i), qp, a[qp]);
\r
800 printf(" %d's color=%d\n", (*i), (a[qp]-(bmp->offset*3)+qp));
\r
801 //outp(PAL_DATA_REG, p[((a[qp])-(bmp->offset*3)+qp)]);// fix this shit!
\r
802 if((*i)+1==(qp)+3){ w++; /*(*i)++;*/ break; }
\r
806 if(qp==0) outp(PAL_DATA_REG, p[(*i)-q]);
\r
807 else{ //outp(PAL_DATA_REG, p[((*i)-(bmp->offset*3)+qp)]);
\r
808 printf("p[]=%d qp=%d p[]-qp=%d\n", ((*i)-(bmp->offset*3)), qp, ((*i)-(bmp->offset*3))+qp); }
\r
811 //printf(" (*i)=%d\n", (*i)/3);
\r
814 printf("\nqqqqqqqq\n\n");
\r
820 long bufSize = (bmp->width * bmp->height);
\r
822 //printf("1(*i)=%02d\n", (*i)/3);
\r
823 //printf("1z=%02d\n", z/3);
\r
824 modexchkcolor(bmp, &q, &a, &aa, &z, i);
\r
825 //printf("2(*i)=%02d\n", (*i)/3);
\r
826 //printf("2z=%02d\n", z/3);
\r
831 // printf("a[%02d]=(%d)\n", aq, a[aq]);
\r
832 if(a[aq]==-1) aq++;
\r
833 else { aqoffset++; break; }
\r
835 //update the image data here!
\r
836 for(lq=0; lq<bufSize; lq++)
\r
840 use a[qp] instead of bmp->offset for this spot!
\r
845 Facking bloody point the values of the changed palette to correct values.... major confusion! wwww
\r
848 //(offset/bmp->offset)*bmp->offset
\r
851 //printf("%02d ",bmp->data[lq]+bmp->offset);
\r
852 //if(lq > 0 && lq%bmp->width==0) printf("\n");
\r
853 //printf("%02d_", bmp->data[lq]+bmp->offset);
\r
854 /*if(bmp->data[lq]+bmp->offset==aq)
\r
856 //printf("%02d", bmp->data[lq]);
\r
857 //printf("\n%02d\n", bmp->offset);
\r
858 printf("aq=%02d ", aq);
\r
859 printf("a[aq]=%02d ", a[aq]);
\r
860 printf("a[aq]+aqpp=%02d ", a[aq]+aqpp);
\r
861 printf("a[aq]-aqpp=%02d\n", a[aq]-aqpp);
\r
862 //bmp->data[lq]=((bmp->data[lq]+bmp->offset)-a[aq]);
\r
863 //++++ bmp->data[lq]=a[aq]-aqpp;
\r
864 // printf("_%d ", bmp->data[lq]);
\r
865 //if(lq > 0 && lq%bmp->width==0) printf("\n");
\r
867 else if(bmp->data[lq]+bmp->offset < ((*i)/3)-aqpp)
\r
869 if(bmp->data[lq]+bmp->offset >= aq)
\r
871 bmp->data[lq]=(bmp->data[lq]+bmp->offset)-aqpp;//-((z-(*i))/3);
\r
872 //printf("_%d ", bmp->data[lq]+bmp->offset)-aqpp-((z-(*i))/3);
\r
874 else bmp->data[lq]+=(bmp->offset-aqpp);
\r
877 //printf("%02d`", bmp->data[lq]);
\r
878 //if(lq > 0 && lq%bmp->width==0) printf("\n");
\r
881 //printf(" aq=%02d\n", aq);
\r
882 //printf(" aa=%02d\n", aa);
\r
884 //update the palette~
\r
885 modexPalUpdate(bmp, &pp, aq, aqoffset);
\r
888 if(aq<aa){ pp=q; aq++; goto aqpee; }
\r
893 modexPalUpdate1(byte *p)
\r
896 //modexWaitBorder();
\r
897 vga_wait_for_vsync();
\r
898 outp(PAL_WRITE_REG, 0); /* start at the beginning of palette */
\r
899 for(i=0; i<PAL_SIZE/2; i++)
\r
901 outp(PAL_DATA_REG, p[i]);
\r
903 //modexWaitBorder(); /* waits one retrace -- less flicker */
\r
904 vga_wait_for_vsync();
\r
905 for(; i<PAL_SIZE; i++)
\r
907 outp(PAL_DATA_REG, p[(i)]);
\r
912 modexPalUpdate0(byte *p)
\r
915 //modexWaitBorder();
\r
916 vga_wait_for_vsync();
\r
917 outp(PAL_WRITE_REG, 0); /* start at the beginning of palette */
\r
918 for(i=0; i<PAL_SIZE/2; i++)
\r
920 outp(PAL_DATA_REG, rand());
\r
922 //modexWaitBorder(); /* waits one retrace -- less flicker */
\r
923 vga_wait_for_vsync();
\r
924 for(; i<PAL_SIZE; i++)
\r
926 outp(PAL_DATA_REG, rand());
\r
931 modexPalOverscan(word col)
\r
933 //modexWaitBorder();
\r
934 vga_wait_for_vsync();
\r
935 outp(PAL_WRITE_REG, 0); /* start at the beginning of palette */
\r
936 outp(PAL_DATA_REG, col);
\r
940 //i want to make another vesion that checks the palette when the palette is being appened~
\r
941 void modexchkcolor(bitmap_t *bmp, word *q, word *a, word *aa, word *z, word *i/*, word *offset*/)
\r
945 pal = modexNewPal();
\r
947 //printf("q: %02d\n", (*q));
\r
948 printf("chkcolor start~\n");
\r
949 printf("1 (*z): %d\n", (*z)/3);
\r
950 printf("1 (*i): %d\n", (*i)/3);
\r
951 // printf("1 offset of color in palette (*q): %d\n", (*q)/3);
\r
952 printf("wwwwwwwwwwwwwwww\n");
\r
953 //check palette for dups
\r
954 for(; (*z)<PAL_SIZE; (*z)+=3)
\r
956 //printf("\n z: %d\n", (*z));
\r
957 //printf(" q: %d\n", (*q));
\r
958 //printf(" z+q: %d\n\n", ((*z)+(*q)));
\r
961 //---- if(pal[(*z)]==pal[(*z)+3] && pal[(*z)+1]==pal[(*z)+4] && pal[(*z)+2]==pal[(*z)+5])
\r
964 // printf("\n%d [%02d][%02d][%02d]\n", (*z), pal[(*z)], pal[(*z)+1], pal[(*z)+2]);
\r
965 // printf("%d [%02d][%02d][%02d]\n\n", (*z)+3, pal[(*z)+3], pal[(*z)+4], pal[(*z)+5]);
\r
969 else for(zz=0; zz<(*q); zz+=3)
\r
971 //printf("zz: %02d\n", zz/3);
\r
974 if(pal[((*z)+(*q))]==pal[((*z)+(*q))+3] && pal[((*z)+(*q))+1]==pal[((*z)+(*q))+4] && pal[((*z)+(*q))+2]==pal[((*z)+(*q))+5]) //break if duplicate colors found in palette because it have reached the end of the current data of the palette
\r
978 // printf("\nzq1:%d[%02d][%02d][%02d]\n", (zz+q), pal[(zz+q)], pal[(zz+q)+1], pal[(zz+q)+2]);
\r
979 // printf("zq2:%d[%02d][%02d][%02d]\n\n", (zz+q)+3, pal[(zz+q)+3], pal[(zz+q)+4], pal[(zz+q)+5]);
\r
982 else if(pal[zz]==pal[((*z)+(*q))] && pal[zz+1]==pal[((*z)+(*q))+1] && pal[zz+2]==pal[((*z)+(*q))+2])
\r
984 // printf("\n\nwwwwwwwwwwwwwwww\n");
\r
985 // printf(" zq: %d [%02d][%02d][%02d] value that is needing to be changed~\n", ((*z)+(*q))/3, pal[((*z)+(*q))], pal[((*z)+(*q))+1], pal[((*z)+(*q))+2]);
\r
986 // printf(" zz: %d [%02d][%02d][%02d] value that the previous value is going to change to~\n", (zz)/3, pal[zz], pal[zz+1], pal[zz+2]);
\r
987 // //printf(" zv: %d [%02d][%02d][%02d] wwww\n", (zz-z+q)/3, pal[(zz-z+q)], pal[(zz-z+q)+1], pal[(zz-z+q)+2]);
\r
988 // printf(" z : %d [%02d][%02d][%02d] offset value~\n", (*z)/3, pal[(*z)], pal[(*z)+1], pal[(*z)+2]);
\r
993 planned features that i plan to implement~
\r
994 image that has values on the pallete list!
\r
996 no... wait.... no wwww
\r
998 //for(zzii=0; zzii<3; zzii++)
\r
1000 //printf("z+q: %d\n\n", ((*z)+(*q)));
\r
1001 a[(((*z)+(*q)))]=zz;
\r
1003 (*aa)=(((*z)+(*q)));
\r
1004 printf("!! a[%02d]: %d\n", (((*z)+(*q))/3), zz/3);
\r
1005 // printf("\n aa: %d\n\n", (*aa));
\r
1006 // printf(" a[%02d]=(%02d) offset array i think the palette should be updated again~\n", ((*z)+(*q))/3, a[((*z)+(*q))/3]);
\r
1007 // printf("wwwwwwwwwwwwwwww\n\n");
\r
1011 printf("================\n");
\r
1012 printf("zq: %d [%02d][%02d][%02d]\n", ((*z)+(*q))/3, pal[((*z)+(*q))], pal[((*z)+(*q))+1], pal[((*z)+(*q))+2]);
\r
1013 printf("zz: %d [%02d][%02d][%02d]\n", (zz)/3, pal[zz], pal[zz+1], pal[zz+2]);
\r
1014 printf("z : %d [%02d][%02d][%02d]\n", (*z)/3, pal[(*z)], pal[(*z)+1], pal[(*z)+2]);
\r
1015 printf("================\n");
\r
1017 //printf("[%d]", (zz+q));
\r
1021 printf("wwwwwwwwwwwwwwww\n");
\r
1022 printf("2 (*z): %d\n", (*z)/3);
\r
1023 printf("2 (*i): %d\n", (*i)/3);
\r
1024 // printf("2 offset of color in palette (*q): %d\n", (*q)/3);
\r
1025 printf("chkcolor end~\n");
\r
1029 void modexputPixel(page_t *page, int x, int y, byte color)
\r
1031 word pageOff = (word) page->data;
\r
1032 /* Each address accesses four neighboring pixels, so set
\r
1033 Write Plane Enable according to which pixel we want
\r
1034 to modify. The plane is determined by the two least
\r
1035 significant bits of the x-coordinate: */
\r
1036 modexSelectPlane(PLANE(x));
\r
1037 //outp(SC_INDEX, 0x02);
\r
1038 //outp(SC_DATA, 0x01 << (x & 3));
\r
1040 /* The offset of the pixel into the video segment is
\r
1041 offset = (width * y + x) / 4, and write the given
\r
1042 color to the plane we selected above. Heed the active
\r
1043 page start selection. */
\r
1044 VGA[(unsigned)((page->width/4) * y) + (x / 4) + pageOff] = color;
\r
1048 byte modexgetPixel(page_t *page, int x, int y)
\r
1050 word pageOff = (word) page->data;
\r
1051 /* Select the plane from which we must read the pixel color: */
\r
1052 outpw(GC_INDEX, 0x04);
\r
1053 outpw(GC_INDEX+1, x & 3);
\r
1055 return VGA[(unsigned)((page->width/4) * y) + (x / 4) + pageOff];
\r
1059 void modexDrawChar(page_t *page, int x/*for planar selection only*/, word t, word col, word bgcol, word addr)
\r
1061 /* vertical drawing routine by joncampbell123.
\r
1063 * optimize for VGA mode X planar memory to minimize the number of times we do I/O write to map mask register.
\r
1064 * so, we enumerate over columns (not rows!) to draw every 4th pixel. bit masks are used because of the font bitmap.
\r
1066 * NTS: addr defines what VGA memory address we use, "x" is redundant except to specify which of the 4 pixels we select in the map mask register. */
\r
1067 word rows = romFonts[t].charSize;
\r
1075 m1 = 0x80; // left half
\r
1076 m2 = 0x08; // right half
\r
1077 for (colm=0;colm < 4;colm++) {
\r
1079 modexSelectPlane(PLANE(plane));
\r
1080 for (row=0;row < rows;row++) {
\r
1081 fontbyte = romFontsData.l[row];
\r
1082 vga_state.vga_graphics_ram[drawaddr ] = (fontbyte & m1) ? col : bgcol;
\r
1083 vga_state.vga_graphics_ram[drawaddr+1] = (fontbyte & m2) ? col : bgcol;
\r
1084 drawaddr += page->width >> 2;
\r
1089 if ((++plane) == 4) {
\r
1096 void modexprint(page_t *page, word x, word y, word t, word col, word bgcol, const byte *str)
\r
1100 //word addr = (word) romFontsData.l;
\r
1101 word addrq = (page->width/4) * y + (x / 4) + ((word)page->data);
\r
1102 word addrr = addrq;
\r
1105 s=romFonts[t].seg;
\r
1106 o=romFonts[t].off;
\r
1107 w=romFonts[t].charSize;
\r
1108 romFontsData.chw=0;
\r
1110 for(; *str != '\0'; str++)
\r
1116 romFontsData.chw = 0;
\r
1117 addrq += (page->width / 4) * 8;
\r
1123 // load the character into romFontsData.l
\r
1124 // no need for inline assembly!
\r
1125 // NTS: It might even be faster to just let the modexDrawChar point directly at ROM font than to copy per char! --J.C.
\r
1126 _fmemcpy(romFontsData.l,MK_FP(s,o+(w*c))/*ROM font location*/,w/*char size*/);
\r
1127 modexDrawChar(page, x_draw/*for mode X planar use*/, t, col, bgcol, addrr);
\r
1128 x_draw += 8; /* track X for edge of screen */
\r
1129 addrr += 2; /* move 8 pixels over (2 x 4 planar pixels per byte) */
\r
1133 void modexprintbig(page_t *page, word x, word y, word t, word col, word bgcol, const byte *str)
\r
1135 word i, s, o, w, j, xp;
\r
1137 word addr = (word) l;
\r
1161 s=romFonts[t].seg;
\r
1162 o=romFonts[t].off;
\r
1164 for(; *str != '\0'; str++)
\r
1167 if((c=='\n'/* || c=="\
\r
1168 "*/)/* || chw>=page->width*/)
\r
1174 //load the letter 'A'
\r
1189 MOV AL, c ; the letter
\r
1192 ADD SI, AX ;the address of charcter
\r
1210 for(i=0; i<w; i++)
\r
1216 //modexputPixel(page, x+xp+chw, y+i, l[i] & j ? col:bgcol);
\r
1217 modexClearRegion(page, (x+xp+chw)*8, (y+i)*8, 8, 8, l[i] & j ? col:bgcol);
\r
1226 /* palette dump on display! */
\r
1227 void modexpdump(page_t *pee)
\r
1229 int mult=(QUADWH);
\r
1230 int palq=(mult)*TILEWH;
\r
1233 for(paly=0; paly<palq; paly+=mult){
\r
1234 for(palx=0; palx<palq; palx+=mult){
\r
1235 modexClearRegion(pee, palx+TILEWH, paly+TILEWH, mult, mult, palcol);
\r
1241 /////////////////////////////////////////////////////////////////////////////
\r
1243 // cls() - This clears the screen to the specified color, on the VGA or on //
\r
1244 // the Virtual screen. //
\r
1246 /////////////////////////////////////////////////////////////////////////////
\r
1247 void modexcls(page_t *page, byte color, byte *Where)
\r
1249 //modexClearRegion(page, 0, 0, page->width, page->height, color);
\r
1250 /* set map mask to all 4 planes */
\r
1251 outpw(SC_INDEX, 0xff02);
\r
1252 //_fmemset(VGA, color, 16000);
\r
1253 _fmemset(Where, color, page->width*(page->height)/4);
\r
1257 modexWaitBorder() {
\r
1258 while(inp(INPUT_STATUS_1) & 8) {
\r
1262 while(!(inp(INPUT_STATUS_1) & 8)) {
\r
1267 void modexprintmeminfo(video_t *v)
\r
1270 printf("video memory remaining: %u\n", v->vmem_remain);
\r
1272 for(i=0; i<v->num_of_pages;i++)
\r
1274 printf(" [%u]=", i);
\r
1275 printf("(%Fp)", (v->page[i].data));
\r
1276 printf(" size=%u ", v->page[i].pagesize);
\r
1277 printf("w=%lu h=%lu ", (unsigned long)v->page[i].width, (unsigned long)v->page[i].height);
\r
1278 printf("sw=%lu sh=%lu ", (unsigned long)v->page[i].sw, (unsigned long)v->page[i].sh);
\r
1279 printf("pi=%u", v->page[i].pi);
\r