| 1 |
/* |
| 2 |
* video.cpp - Video/graphics emulation |
| 3 |
* |
| 4 |
* Basilisk II (C) 1997-2001 Christian Bauer |
| 5 |
* Portions (C) 1997-1999 Marc Hellwig |
| 6 |
* |
| 7 |
* This program is free software; you can redistribute it and/or modify |
| 8 |
* it under the terms of the GNU General Public License as published by |
| 9 |
* the Free Software Foundation; either version 2 of the License, or |
| 10 |
* (at your option) any later version. |
| 11 |
* |
| 12 |
* This program 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 |
| 15 |
* GNU General Public License for more details. |
| 16 |
* |
| 17 |
* You should have received a copy of the GNU General Public License |
| 18 |
* along with this program; if not, write to the Free Software |
| 19 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 |
*/ |
| 21 |
|
| 22 |
/* |
| 23 |
* SEE ALSO |
| 24 |
* Inside Macintosh: Devices, chapter 1 "Device Manager" |
| 25 |
* Designing Cards and Drivers for the Macintosh Family, Second Edition |
| 26 |
*/ |
| 27 |
|
| 28 |
#include <stdio.h> |
| 29 |
|
| 30 |
#include "sysdeps.h" |
| 31 |
#include "cpu_emulation.h" |
| 32 |
#include "main.h" |
| 33 |
#include "macos_util.h" |
| 34 |
#include "slot_rom.h" |
| 35 |
#include "video.h" |
| 36 |
#include "video_defs.h" |
| 37 |
|
| 38 |
#define DEBUG 0 |
| 39 |
#include "debug.h" |
| 40 |
|
| 41 |
|
| 42 |
// List of supported video modes |
| 43 |
vector<video_mode> VideoModes; |
| 44 |
|
| 45 |
// Description of the main monitor |
| 46 |
monitor_desc VideoMonitor; |
| 47 |
|
| 48 |
// Depth code -> Apple mode mapping |
| 49 |
uint16 apple_mode_for_depth[6]; |
| 50 |
|
| 51 |
// Local variables (per monitor) |
| 52 |
struct { |
| 53 |
monitor_desc *desc; // Pointer to description of monitor handled by this instance of the driver |
| 54 |
uint8 palette[256 * 3]; // Color palette, 256 entries, RGB |
| 55 |
bool luminance_mapping; // Luminance mapping on/off |
| 56 |
bool interrupts_enabled; // VBL interrupts on/off |
| 57 |
bool dm_present; // We received a GetVideoParameters call, so the Display Manager seems to be present |
| 58 |
uint32 gamma_table; // Mac address of gamma table |
| 59 |
int alloc_gamma_table_size; // Allocated size of gamma table |
| 60 |
uint16 current_mode; // Currently selected depth/resolution |
| 61 |
uint32 current_id; |
| 62 |
uint16 preferred_mode; // Preferred depth/resolution |
| 63 |
uint32 preferred_id; |
| 64 |
uint32 slot_param; // Mac address of Slot Manager parameter block |
| 65 |
} VidLocal; |
| 66 |
|
| 67 |
|
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/* |
| 69 |
* Initialize apple_mode_for_depth[] array from VideoModes list |
| 70 |
*/ |
| 71 |
|
| 72 |
void video_init_depth_list(void) |
| 73 |
{ |
| 74 |
uint16 mode = 0x80; |
| 75 |
for (int depth = VDEPTH_1BIT; depth <= VDEPTH_32BIT; depth++) { |
| 76 |
if (video_has_depth(video_depth(depth))) |
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apple_mode_for_depth[depth] = mode++; |
| 78 |
else |
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apple_mode_for_depth[depth] = 0; |
| 80 |
} |
| 81 |
} |
| 82 |
|
| 83 |
|
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/* |
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* Check whether a mode with the specified depth exists |
| 86 |
*/ |
| 87 |
|
| 88 |
bool video_has_depth(video_depth depth) |
| 89 |
{ |
| 90 |
vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end(); |
| 91 |
while (i != end) { |
| 92 |
if (i->depth == depth) |
| 93 |
return true; |
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++i; |
| 95 |
} |
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return false; |
| 97 |
} |
| 98 |
|
| 99 |
|
| 100 |
/* |
| 101 |
* Check whether specified resolution ID is one of the supported resolutions |
| 102 |
*/ |
| 103 |
|
| 104 |
static bool has_resolution(uint32 id) |
| 105 |
{ |
| 106 |
vector<video_mode>::const_iterator i, end = VideoModes.end(); |
| 107 |
for (i = VideoModes.begin(); i != end; ++i) { |
| 108 |
if (i->resolution_id == id) |
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return true; |
| 110 |
} |
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return false; |
| 112 |
} |
| 113 |
|
| 114 |
|
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/* |
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* Find specified mode (depth/resolution) (or VideoModes.end() if not found) |
| 117 |
*/ |
| 118 |
|
| 119 |
static vector<video_mode>::const_iterator find_mode(uint16 mode, uint32 id) |
| 120 |
{ |
| 121 |
vector<video_mode>::const_iterator i, end = VideoModes.end(); |
| 122 |
for (i = VideoModes.begin(); i != end; ++i) { |
| 123 |
if (i->resolution_id == id && DepthToAppleMode(i->depth) == mode) |
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return i; |
| 125 |
} |
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return i; |
| 127 |
} |
| 128 |
|
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|
| 130 |
/* |
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* Find maximum supported depth for given resolution ID |
| 132 |
*/ |
| 133 |
|
| 134 |
static video_depth max_depth_of_resolution(uint32 id) |
| 135 |
{ |
| 136 |
video_depth m = VDEPTH_1BIT; |
| 137 |
vector<video_mode>::const_iterator i, end = VideoModes.end(); |
| 138 |
for (i = VideoModes.begin(); i != end; ++i) { |
| 139 |
if (i->depth > m) |
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m = i->depth; |
| 141 |
} |
| 142 |
return m; |
| 143 |
} |
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|
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|
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/* |
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* Get X/Y size of specified resolution |
| 148 |
*/ |
| 149 |
|
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static void get_size_of_resolution(uint32 id, uint32 &x, uint32 &y) |
| 151 |
{ |
| 152 |
vector<video_mode>::const_iterator i, end = VideoModes.end(); |
| 153 |
for (i = VideoModes.begin(); i != end; ++i) { |
| 154 |
if (i->resolution_id == id) { |
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x = i->x; |
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y = i->y; |
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return; |
| 158 |
} |
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} |
| 160 |
x = y = 0; |
| 161 |
} |
| 162 |
|
| 163 |
|
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/* |
| 165 |
* Get bytes-per-row value for specified resolution/depth |
| 166 |
*/ |
| 167 |
|
| 168 |
uint32 video_bytes_per_row(video_depth depth, uint32 id) |
| 169 |
{ |
| 170 |
vector<video_mode>::const_iterator i, end = VideoModes.end(); |
| 171 |
for (i = VideoModes.begin(); i != end; ++i) { |
| 172 |
if (i->depth == depth && i->resolution_id == id) |
| 173 |
return i->bytes_per_row; |
| 174 |
} |
| 175 |
uint32 x, y; |
| 176 |
get_size_of_resolution(id, x, y); |
| 177 |
return TrivialBytesPerRow(x, depth); |
| 178 |
} |
| 179 |
|
| 180 |
|
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/* |
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* Find palette size for given color depth |
| 183 |
*/ |
| 184 |
|
| 185 |
static int palette_size(video_depth depth) |
| 186 |
{ |
| 187 |
switch (depth) { |
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case VDEPTH_1BIT: return 2; |
| 189 |
case VDEPTH_2BIT: return 4; |
| 190 |
case VDEPTH_4BIT: return 16; |
| 191 |
case VDEPTH_8BIT: return 256; |
| 192 |
case VDEPTH_16BIT: return 32; |
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case VDEPTH_32BIT: return 256; |
| 194 |
default: return 0; |
| 195 |
} |
| 196 |
} |
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|
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|
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/* |
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* Set palette to 50% gray |
| 201 |
*/ |
| 202 |
|
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static void set_gray_palette(void) |
| 204 |
{ |
| 205 |
for (int i=0; i<256; i++) { |
| 206 |
VidLocal.palette[i * 3 + 0] = 127; |
| 207 |
VidLocal.palette[i * 3 + 1] = 127; |
| 208 |
VidLocal.palette[i * 3 + 2] = 127; |
| 209 |
} |
| 210 |
video_set_palette(VidLocal.palette, 256); |
| 211 |
} |
| 212 |
|
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|
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/* |
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* Load gamma-corrected black-to-white ramp to palette for direct-color mode |
| 216 |
*/ |
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|
| 218 |
static void load_ramp_palette(void) |
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{ |
| 220 |
// Find tables for gamma correction |
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uint8 *red_gamma, *green_gamma, *blue_gamma; |
| 222 |
bool have_gamma = false; |
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int data_width = 0; |
| 224 |
if (VidLocal.gamma_table) { |
| 225 |
uint32 table = VidLocal.gamma_table; |
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red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize)); |
| 227 |
int chan_cnt = ReadMacInt16(table + gChanCnt); |
| 228 |
if (chan_cnt == 1) |
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green_gamma = blue_gamma = red_gamma; |
| 230 |
else { |
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int ofs = ReadMacInt16(table + gDataCnt); |
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green_gamma = red_gamma + ofs; |
| 233 |
blue_gamma = green_gamma + ofs; |
| 234 |
} |
| 235 |
data_width = ReadMacInt16(table + gDataWidth); |
| 236 |
have_gamma = true; |
| 237 |
} |
| 238 |
|
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int num = (VidLocal.desc->mode.depth == VDEPTH_16BIT ? 32 : 256); |
| 240 |
uint8 *p = VidLocal.palette; |
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for (int i=0; i<num; i++) { |
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uint8 red = (i * 256 / num), green = red, blue = red; |
| 243 |
if (have_gamma) { |
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red = red_gamma[red >> (8 - data_width)]; |
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green = green_gamma[green >> (8 - data_width)]; |
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blue = blue_gamma[blue >> (8 - data_width)]; |
| 247 |
} |
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*p++ = red; |
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*p++ = green; |
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*p++ = blue; |
| 251 |
} |
| 252 |
|
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video_set_palette(VidLocal.palette, num); |
| 254 |
} |
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|
| 256 |
|
| 257 |
/* |
| 258 |
* Allocate gamma table of specified size |
| 259 |
*/ |
| 260 |
|
| 261 |
static bool allocate_gamma_table(int size) |
| 262 |
{ |
| 263 |
M68kRegisters r; |
| 264 |
|
| 265 |
if (size > VidLocal.alloc_gamma_table_size) { |
| 266 |
if (VidLocal.gamma_table) { |
| 267 |
r.a[0] = VidLocal.gamma_table; |
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Execute68kTrap(0xa01f, &r); // DisposePtr() |
| 269 |
VidLocal.gamma_table = 0; |
| 270 |
VidLocal.alloc_gamma_table_size = 0; |
| 271 |
} |
| 272 |
r.d[0] = size; |
| 273 |
Execute68kTrap(0xa71e, &r); // NewPtrSysClear() |
| 274 |
if (r.a[0] == 0) |
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return false; |
| 276 |
VidLocal.gamma_table = r.a[0]; |
| 277 |
VidLocal.alloc_gamma_table_size = size; |
| 278 |
} |
| 279 |
return true; |
| 280 |
} |
| 281 |
|
| 282 |
|
| 283 |
/* |
| 284 |
* Set gamma table (0 = build linear ramp) |
| 285 |
*/ |
| 286 |
|
| 287 |
static bool set_gamma_table(uint32 user_table) |
| 288 |
{ |
| 289 |
if (user_table == 0) { // Build linear ramp, 256 entries |
| 290 |
|
| 291 |
// Allocate new table, if necessary |
| 292 |
if (!allocate_gamma_table(SIZEOF_GammaTbl + 256)) |
| 293 |
return memFullErr; |
| 294 |
uint32 table = VidLocal.gamma_table; |
| 295 |
|
| 296 |
// Initialize header |
| 297 |
WriteMacInt16(table + gVersion, 0); |
| 298 |
WriteMacInt16(table + gType, 0); |
| 299 |
WriteMacInt16(table + gFormulaSize, 0); |
| 300 |
WriteMacInt16(table + gChanCnt, 1); |
| 301 |
WriteMacInt16(table + gDataCnt, 256); |
| 302 |
WriteMacInt16(table + gDataWidth, 8); |
| 303 |
|
| 304 |
// Build ramp |
| 305 |
uint32 p = table + gFormulaData; |
| 306 |
for (int i=0; i<256; i++) |
| 307 |
WriteMacInt8(p + i, i); |
| 308 |
|
| 309 |
} else { // User-supplied gamma table |
| 310 |
|
| 311 |
// Validate header |
| 312 |
if (ReadMacInt16(user_table + gVersion)) |
| 313 |
return paramErr; |
| 314 |
if (ReadMacInt16(user_table + gType)) |
| 315 |
return paramErr; |
| 316 |
int chan_cnt = ReadMacInt16(user_table + gChanCnt); |
| 317 |
if (chan_cnt != 1 && chan_cnt != 3) |
| 318 |
return paramErr; |
| 319 |
int data_width = ReadMacInt16(user_table + gDataWidth); |
| 320 |
if (data_width > 8) |
| 321 |
return paramErr; |
| 322 |
int data_cnt = ReadMacInt16(user_table + gDataCnt); |
| 323 |
if (data_cnt != (1 << data_width)) |
| 324 |
return paramErr; |
| 325 |
|
| 326 |
// Allocate new table, if necessary |
| 327 |
int size = SIZEOF_GammaTbl + ReadMacInt16(user_table + gFormulaSize) + chan_cnt * data_cnt; |
| 328 |
if (!allocate_gamma_table(size)) |
| 329 |
return memFullErr; |
| 330 |
uint32 table = VidLocal.gamma_table; |
| 331 |
|
| 332 |
// Copy table |
| 333 |
Mac2Mac_memcpy(table, user_table, size); |
| 334 |
} |
| 335 |
|
| 336 |
if (IsDirectMode(VidLocal.desc->mode)) |
| 337 |
load_ramp_palette(); |
| 338 |
|
| 339 |
return true; |
| 340 |
} |
| 341 |
|
| 342 |
|
| 343 |
/* |
| 344 |
* Switch video mode |
| 345 |
*/ |
| 346 |
|
| 347 |
static void switch_mode(const video_mode &mode, uint32 param, uint32 dce) |
| 348 |
{ |
| 349 |
// Switch mode |
| 350 |
set_gray_palette(); |
| 351 |
video_switch_to_mode(mode); |
| 352 |
|
| 353 |
// Update VidLocal |
| 354 |
VidLocal.current_mode = DepthToAppleMode(mode.depth); |
| 355 |
VidLocal.current_id = mode.resolution_id; |
| 356 |
|
| 357 |
uint32 frame_base = VidLocal.desc->mac_frame_base; |
| 358 |
|
| 359 |
M68kRegisters r; |
| 360 |
uint32 sp = VidLocal.slot_param; |
| 361 |
r.a[0] = sp; |
| 362 |
|
| 363 |
// Find functional sResource for this display |
| 364 |
WriteMacInt8(sp + spSlot, ReadMacInt8(dce + dCtlSlot)); |
| 365 |
WriteMacInt8(sp + spID, ReadMacInt8(dce + dCtlSlotId)); |
| 366 |
WriteMacInt8(sp + spExtDev, 0); |
| 367 |
r.d[0] = 0x0016; |
| 368 |
Execute68kTrap(0xa06e, &r); // SRsrcInfo() |
| 369 |
uint32 rsrc = ReadMacInt32(sp + spPointer); |
| 370 |
|
| 371 |
// Patch minorBase (otherwise rebooting won't work) |
| 372 |
WriteMacInt8(sp + spID, 0x0a); // minorBase |
| 373 |
r.d[0] = 0x0006; |
| 374 |
Execute68kTrap(0xa06e, &r); // SFindStruct() |
| 375 |
uint32 minor_base = ReadMacInt32(sp + spPointer) - ROMBaseMac; |
| 376 |
ROMBaseHost[minor_base + 0] = frame_base >> 24; |
| 377 |
ROMBaseHost[minor_base + 1] = frame_base >> 16; |
| 378 |
ROMBaseHost[minor_base + 2] = frame_base >> 8; |
| 379 |
ROMBaseHost[minor_base + 3] = frame_base; |
| 380 |
|
| 381 |
// Patch video mode parameter table |
| 382 |
WriteMacInt32(sp + spPointer, rsrc); |
| 383 |
WriteMacInt8(sp + spID, DepthToAppleMode(mode.depth)); |
| 384 |
r.d[0] = 0x0006; |
| 385 |
Execute68kTrap(0xa06e, &r); // SFindStruct() |
| 386 |
WriteMacInt8(sp + spID, 0x01); |
| 387 |
r.d[0] = 0x0006; |
| 388 |
Execute68kTrap(0xa06e, &r); // SFindStruct() |
| 389 |
uint32 p = ReadMacInt32(sp + spPointer) - ROMBaseMac; |
| 390 |
ROMBaseHost[p + 8] = mode.bytes_per_row >> 8; |
| 391 |
ROMBaseHost[p + 9] = mode.bytes_per_row; |
| 392 |
ROMBaseHost[p + 14] = mode.y >> 8; |
| 393 |
ROMBaseHost[p + 15] = mode.y; |
| 394 |
ROMBaseHost[p + 16] = mode.x >> 8; |
| 395 |
ROMBaseHost[p + 17] = mode.x; |
| 396 |
|
| 397 |
// Recalculate slot ROM checksum |
| 398 |
ChecksumSlotROM(); |
| 399 |
|
| 400 |
// Update sResource |
| 401 |
WriteMacInt8(sp + spID, ReadMacInt8(dce + dCtlSlotId)); |
| 402 |
r.d[0] = 0x002b; |
| 403 |
Execute68kTrap(0xa06e, &r); // SUpdateSRT() |
| 404 |
|
| 405 |
// Update frame buffer base in DCE and param block |
| 406 |
WriteMacInt32(dce + dCtlDevBase, frame_base); |
| 407 |
WriteMacInt32(param + csBaseAddr, frame_base); |
| 408 |
|
| 409 |
// Patch frame buffer base address for MacOS versions <7.6 |
| 410 |
if (!VidLocal.dm_present) { // Only do this when no Display Manager seems to be present; otherwise, the screen will not get redrawn |
| 411 |
WriteMacInt32(0x824, frame_base); // ScrnBase |
| 412 |
WriteMacInt32(0x898, frame_base); // CrsrBase |
| 413 |
uint32 gdev = ReadMacInt32(0x8a4); // MainDevice |
| 414 |
gdev = ReadMacInt32(gdev); |
| 415 |
uint32 pmap = ReadMacInt32(gdev + 0x16); // gdPMap |
| 416 |
pmap = ReadMacInt32(pmap); |
| 417 |
WriteMacInt32(pmap, frame_base); // baseAddr |
| 418 |
} |
| 419 |
} |
| 420 |
|
| 421 |
|
| 422 |
/* |
| 423 |
* Driver Open() routine |
| 424 |
*/ |
| 425 |
|
| 426 |
int16 VideoDriverOpen(uint32 pb, uint32 dce) |
| 427 |
{ |
| 428 |
D(bug("VideoDriverOpen\n")); |
| 429 |
|
| 430 |
// This shouldn't happen unless the platform-specific video code is broken |
| 431 |
if (VideoModes.empty()) |
| 432 |
fprintf(stderr, "No valid video modes found (broken video driver?)\n"); |
| 433 |
|
| 434 |
// Init local variables |
| 435 |
VidLocal.desc = &VideoMonitor; |
| 436 |
VidLocal.luminance_mapping = false; |
| 437 |
VidLocal.interrupts_enabled = false; |
| 438 |
VidLocal.current_mode = DepthToAppleMode(VidLocal.desc->mode.depth); |
| 439 |
VidLocal.current_id = VidLocal.desc->mode.resolution_id; |
| 440 |
VidLocal.preferred_mode = VidLocal.current_mode; |
| 441 |
VidLocal.preferred_id = VidLocal.current_id; |
| 442 |
VidLocal.dm_present = false; |
| 443 |
|
| 444 |
// Allocate Slot Manager parameter block in Mac RAM |
| 445 |
M68kRegisters r; |
| 446 |
r.d[0] = SIZEOF_SPBlock; |
| 447 |
Execute68kTrap(0xa71e, &r); // NewPtrSysClear() |
| 448 |
if (r.a[0] == 0) |
| 449 |
return memFullErr; |
| 450 |
VidLocal.slot_param = r.a[0]; |
| 451 |
D(bug("SPBlock at %08x\n", VidLocal.slot_param)); |
| 452 |
|
| 453 |
// Find and set default gamma table |
| 454 |
VidLocal.gamma_table = 0; |
| 455 |
VidLocal.alloc_gamma_table_size = 0; |
| 456 |
set_gamma_table(0); |
| 457 |
|
| 458 |
// Init color palette (solid gray) |
| 459 |
set_gray_palette(); |
| 460 |
return noErr; |
| 461 |
} |
| 462 |
|
| 463 |
|
| 464 |
/* |
| 465 |
* Driver Control() routine |
| 466 |
*/ |
| 467 |
|
| 468 |
int16 VideoDriverControl(uint32 pb, uint32 dce) |
| 469 |
{ |
| 470 |
uint16 code = ReadMacInt16(pb + csCode); |
| 471 |
uint32 param = ReadMacInt32(pb + csParam); |
| 472 |
D(bug("VideoDriverControl %d\n", code)); |
| 473 |
switch (code) { |
| 474 |
|
| 475 |
case cscSetMode: { // Set color depth |
| 476 |
uint16 mode = ReadMacInt16(param + csMode); |
| 477 |
D(bug(" SetMode %04x\n", mode)); |
| 478 |
|
| 479 |
// Set old base address in case the switch fails |
| 480 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
| 481 |
|
| 482 |
if (ReadMacInt16(param + csPage)) |
| 483 |
return paramErr; |
| 484 |
|
| 485 |
if (mode != VidLocal.current_mode) { |
| 486 |
vector<video_mode>::const_iterator i = find_mode(mode, VidLocal.current_id); |
| 487 |
if (i == VideoModes.end()) |
| 488 |
return paramErr; |
| 489 |
switch_mode(*i, param, dce); |
| 490 |
} |
| 491 |
D(bug(" base %08x\n", VidLocal.desc->mac_frame_base)); |
| 492 |
return noErr; |
| 493 |
} |
| 494 |
|
| 495 |
case cscSetEntries: // Set palette |
| 496 |
case cscDirectSetEntries: { |
| 497 |
D(bug(" (Direct)SetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart))); |
| 498 |
bool is_direct = IsDirectMode(VidLocal.desc->mode); |
| 499 |
if (code == cscSetEntries && is_direct) |
| 500 |
return controlErr; |
| 501 |
if (code == cscDirectSetEntries && !is_direct) |
| 502 |
return controlErr; |
| 503 |
|
| 504 |
uint32 s_pal = ReadMacInt32(param + csTable); // Source palette |
| 505 |
uint8 *d_pal; // Destination palette |
| 506 |
uint16 start = ReadMacInt16(param + csStart); |
| 507 |
uint16 count = ReadMacInt16(param + csCount); |
| 508 |
if (s_pal == 0 || count > 255) |
| 509 |
return paramErr; |
| 510 |
|
| 511 |
// Find tables for gamma correction |
| 512 |
uint8 *red_gamma, *green_gamma, *blue_gamma; |
| 513 |
bool have_gamma = false; |
| 514 |
int data_width = 0; |
| 515 |
if (VidLocal.gamma_table) { |
| 516 |
uint32 table = VidLocal.gamma_table; |
| 517 |
red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize)); |
| 518 |
int chan_cnt = ReadMacInt16(table + gChanCnt); |
| 519 |
if (chan_cnt == 1) |
| 520 |
green_gamma = blue_gamma = red_gamma; |
| 521 |
else { |
| 522 |
int ofs = ReadMacInt16(table + gDataCnt); |
| 523 |
green_gamma = red_gamma + ofs; |
| 524 |
blue_gamma = green_gamma + ofs; |
| 525 |
} |
| 526 |
data_width = ReadMacInt16(table + gDataWidth); |
| 527 |
have_gamma = true; |
| 528 |
} |
| 529 |
|
| 530 |
// Convert palette |
| 531 |
if (start == 0xffff) { // Indexed |
| 532 |
for (uint32 i=0; i<=count; i++) { |
| 533 |
d_pal = VidLocal.palette + (ReadMacInt16(s_pal) & 0xff) * 3; |
| 534 |
uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8; |
| 535 |
uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8; |
| 536 |
uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8; |
| 537 |
if (VidLocal.luminance_mapping && !is_direct) |
| 538 |
red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16; |
| 539 |
if (have_gamma) { |
| 540 |
red = red_gamma[red >> (8 - data_width)]; |
| 541 |
green = green_gamma[green >> (8 - data_width)]; |
| 542 |
blue = blue_gamma[blue >> (8 - data_width)]; |
| 543 |
} |
| 544 |
*d_pal++ = red; |
| 545 |
*d_pal++ = green; |
| 546 |
*d_pal++ = blue; |
| 547 |
s_pal += 8; |
| 548 |
} |
| 549 |
} else { // Sequential |
| 550 |
if (start + count > 255) |
| 551 |
return paramErr; |
| 552 |
d_pal = VidLocal.palette + start * 3; |
| 553 |
for (uint32 i=0; i<=count; i++) { |
| 554 |
uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8; |
| 555 |
uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8; |
| 556 |
uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8; |
| 557 |
if (VidLocal.luminance_mapping && !is_direct) |
| 558 |
red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16; |
| 559 |
if (have_gamma) { |
| 560 |
red = red_gamma[red >> (8 - data_width)]; |
| 561 |
green = green_gamma[green >> (8 - data_width)]; |
| 562 |
blue = blue_gamma[blue >> (8 - data_width)]; |
| 563 |
} |
| 564 |
*d_pal++ = red; |
| 565 |
*d_pal++ = green; |
| 566 |
*d_pal++ = blue; |
| 567 |
s_pal += 8; |
| 568 |
} |
| 569 |
} |
| 570 |
video_set_palette(VidLocal.palette, palette_size(VidLocal.desc->mode.depth)); |
| 571 |
return noErr; |
| 572 |
} |
| 573 |
|
| 574 |
case cscSetGamma: { // Set gamma table |
| 575 |
uint32 user_table = ReadMacInt32(param + csGTable); |
| 576 |
D(bug(" SetGamma %08x\n", user_table)); |
| 577 |
return set_gamma_table(user_table) ? noErr : memFullErr; |
| 578 |
} |
| 579 |
|
| 580 |
case cscGrayPage: { // Fill page with dithered gray pattern |
| 581 |
D(bug(" GrayPage %d\n", ReadMacInt16(param + csPage))); |
| 582 |
if (ReadMacInt16(param + csPage)) |
| 583 |
return paramErr; |
| 584 |
|
| 585 |
uint32 pattern[6] = { |
| 586 |
0xaaaaaaaa, // 1 bpp |
| 587 |
0xcccccccc, // 2 bpp |
| 588 |
0xf0f0f0f0, // 4 bpp |
| 589 |
0xff00ff00, // 8 bpp |
| 590 |
0xffff0000, // 16 bpp |
| 591 |
0xffffffff // 32 bpp |
| 592 |
}; |
| 593 |
uint32 frame_base = VidLocal.desc->mac_frame_base; |
| 594 |
uint32 pat = pattern[VidLocal.desc->mode.depth]; |
| 595 |
bool invert = (VidLocal.desc->mode.depth == VDEPTH_32BIT); |
| 596 |
for (uint32 y=0; y<VidLocal.desc->mode.y; y++) { |
| 597 |
for (uint32 x=0; x<VidLocal.desc->mode.bytes_per_row; x+=4) { |
| 598 |
WriteMacInt32(frame_base + x, pat); |
| 599 |
if (invert) |
| 600 |
pat = ~pat; |
| 601 |
} |
| 602 |
frame_base += VidLocal.desc->mode.bytes_per_row; |
| 603 |
pat = ~pat; |
| 604 |
} |
| 605 |
|
| 606 |
if (IsDirectMode(VidLocal.desc->mode)) |
| 607 |
load_ramp_palette(); |
| 608 |
|
| 609 |
return noErr; |
| 610 |
} |
| 611 |
|
| 612 |
case cscSetGray: // Enable/disable luminance mapping |
| 613 |
D(bug(" SetGray %02x\n", ReadMacInt8(param + csMode))); |
| 614 |
VidLocal.luminance_mapping = ReadMacInt8(param + csMode); |
| 615 |
return noErr; |
| 616 |
|
| 617 |
case cscSetInterrupt: // Enable/disable VBL |
| 618 |
D(bug(" SetInterrupt %02x\n", ReadMacInt8(param + csMode))); |
| 619 |
VidLocal.interrupts_enabled = (ReadMacInt8(param + csMode) == 0); |
| 620 |
return noErr; |
| 621 |
|
| 622 |
case cscSetDefaultMode: { // Set default color depth |
| 623 |
uint16 mode = ReadMacInt8(param + csMode); |
| 624 |
D(bug(" SetDefaultMode %02x\n", mode)); |
| 625 |
VidLocal.preferred_mode = mode; |
| 626 |
return noErr; |
| 627 |
} |
| 628 |
|
| 629 |
case cscSwitchMode: { // Switch video mode (depth and resolution) |
| 630 |
uint16 mode = ReadMacInt16(param + csMode); |
| 631 |
uint32 id = ReadMacInt32(param + csData); |
| 632 |
D(bug(" SwitchMode %04x, %08x\n", mode, id)); |
| 633 |
|
| 634 |
// Set old base address in case the switch fails |
| 635 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
| 636 |
|
| 637 |
if (ReadMacInt16(param + csPage)) |
| 638 |
return paramErr; |
| 639 |
|
| 640 |
if (mode != VidLocal.current_mode || id != VidLocal.current_id) { |
| 641 |
vector<video_mode>::const_iterator i = find_mode(mode, id); |
| 642 |
if (i == VideoModes.end()) |
| 643 |
return paramErr; |
| 644 |
switch_mode(*i, param, dce); |
| 645 |
} |
| 646 |
D(bug(" base %08x\n", VidLocal.desc->mac_frame_base)); |
| 647 |
return noErr; |
| 648 |
} |
| 649 |
|
| 650 |
case cscSavePreferredConfiguration: { |
| 651 |
uint16 mode = ReadMacInt16(param + csMode); |
| 652 |
uint32 id = ReadMacInt32(param + csData); |
| 653 |
D(bug(" SavePreferredConfiguration %04x, %08x\n", mode, id)); |
| 654 |
VidLocal.preferred_mode = mode; |
| 655 |
VidLocal.preferred_id = id; |
| 656 |
return noErr; |
| 657 |
} |
| 658 |
|
| 659 |
default: |
| 660 |
printf("WARNING: Unknown VideoDriverControl(%d)\n", code); |
| 661 |
return controlErr; |
| 662 |
} |
| 663 |
} |
| 664 |
|
| 665 |
|
| 666 |
/* |
| 667 |
* Driver Status() routine |
| 668 |
*/ |
| 669 |
|
| 670 |
int16 VideoDriverStatus(uint32 pb, uint32 dce) |
| 671 |
{ |
| 672 |
uint16 code = ReadMacInt16(pb + csCode); |
| 673 |
uint32 param = ReadMacInt32(pb + csParam); |
| 674 |
D(bug("VideoDriverStatus %d\n", code)); |
| 675 |
switch (code) { |
| 676 |
|
| 677 |
case cscGetMode: // Get current color depth |
| 678 |
D(bug(" GetMode -> %04x, base %08x\n", VidLocal.current_mode, VidLocal.desc->mac_frame_base)); |
| 679 |
WriteMacInt16(param + csMode, VidLocal.current_mode); |
| 680 |
WriteMacInt16(param + csPage, 0); |
| 681 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
| 682 |
return noErr; |
| 683 |
|
| 684 |
case cscGetEntries: { // Read palette |
| 685 |
D(bug(" GetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart))); |
| 686 |
|
| 687 |
uint8 *s_pal; // Source palette |
| 688 |
uint32 d_pal = ReadMacInt32(param + csTable); // Destination palette |
| 689 |
uint16 start = ReadMacInt16(param + csStart); |
| 690 |
uint16 count = ReadMacInt16(param + csCount); |
| 691 |
if (d_pal == 0 || count > 255) |
| 692 |
return paramErr; |
| 693 |
|
| 694 |
if (start == 0xffff) { // Indexed |
| 695 |
for (uint32 i=0; i<=count; i++) { |
| 696 |
s_pal = VidLocal.palette + (ReadMacInt16(d_pal) & 0xff) * 3; |
| 697 |
uint8 red = *s_pal++; |
| 698 |
uint8 green = *s_pal++; |
| 699 |
uint8 blue = *s_pal++; |
| 700 |
WriteMacInt16(d_pal + 2, red * 0x0101); |
| 701 |
WriteMacInt16(d_pal + 4, green * 0x0101); |
| 702 |
WriteMacInt16(d_pal + 6, blue * 0x0101); |
| 703 |
d_pal += 8; |
| 704 |
} |
| 705 |
} else { // Sequential |
| 706 |
if (start + count > 255) |
| 707 |
return paramErr; |
| 708 |
s_pal = VidLocal.palette + start * 3; |
| 709 |
for (uint32 i=0; i<=count; i++) { |
| 710 |
uint8 red = *s_pal++; |
| 711 |
uint8 green = *s_pal++; |
| 712 |
uint8 blue = *s_pal++; |
| 713 |
WriteMacInt16(d_pal + 2, red * 0x0101); |
| 714 |
WriteMacInt16(d_pal + 4, green * 0x0101); |
| 715 |
WriteMacInt16(d_pal + 6, blue * 0x0101); |
| 716 |
d_pal += 8; |
| 717 |
} |
| 718 |
} |
| 719 |
return noErr; |
| 720 |
} |
| 721 |
|
| 722 |
case cscGetPages: // Get number of pages |
| 723 |
D(bug(" GetPages -> 1\n")); |
| 724 |
WriteMacInt16(param + csPage, 1); |
| 725 |
return noErr; |
| 726 |
|
| 727 |
case cscGetBaseAddress: // Get page base address |
| 728 |
D(bug(" GetBaseAddress -> %08x\n", VidLocal.desc->mac_frame_base)); |
| 729 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
| 730 |
if (ReadMacInt16(param + csPage)) |
| 731 |
return paramErr; |
| 732 |
else |
| 733 |
return noErr; |
| 734 |
|
| 735 |
case cscGetGray: // Get luminance mapping flag |
| 736 |
D(bug(" GetGray -> %d\n", VidLocal.luminance_mapping)); |
| 737 |
WriteMacInt8(param, VidLocal.luminance_mapping ? 1 : 0); |
| 738 |
return noErr; |
| 739 |
|
| 740 |
case cscGetInterrupt: // Get interrupt disable flag |
| 741 |
D(bug(" GetInterrupt -> %d\n", VidLocal.interrupts_enabled)); |
| 742 |
WriteMacInt8(param, VidLocal.interrupts_enabled ? 0 : 1); |
| 743 |
return noErr; |
| 744 |
|
| 745 |
case cscGetGamma: |
| 746 |
D(bug(" GetGamma -> %08x\n", VidLocal.gamma_table)); |
| 747 |
WriteMacInt32(param + csGTable, VidLocal.gamma_table); |
| 748 |
return noErr; |
| 749 |
|
| 750 |
case cscGetDefaultMode: // Get default color depth |
| 751 |
D(bug(" GetDefaultMode -> %02x\n", VidLocal.preferred_mode)); |
| 752 |
WriteMacInt8(param + csMode, VidLocal.preferred_mode); |
| 753 |
return noErr; |
| 754 |
|
| 755 |
case cscGetCurrentMode: // Get current video mode (depth and resolution) |
| 756 |
D(bug(" GetCurMode -> %04x/%08x, base %08x\n", VidLocal.current_mode, VidLocal.current_id, VidLocal.desc->mac_frame_base)); |
| 757 |
WriteMacInt16(param + csMode, VidLocal.current_mode); |
| 758 |
WriteMacInt32(param + csData, VidLocal.current_id); |
| 759 |
WriteMacInt16(param + csPage, 0); |
| 760 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
| 761 |
return noErr; |
| 762 |
|
| 763 |
case cscGetConnection: // Get monitor information |
| 764 |
D(bug(" GetConnection\n")); |
| 765 |
WriteMacInt16(param + csDisplayType, 8); // Modeless connection |
| 766 |
WriteMacInt8(param + csConnectTaggedType, 0); |
| 767 |
WriteMacInt8(param + csConnectTaggedData, 0); |
| 768 |
WriteMacInt32(param + csConnectFlags, 0x43); // All modes valid and safe, non-standard tagging |
| 769 |
WriteMacInt32(param + csDisplayComponent, 0); |
| 770 |
return noErr; |
| 771 |
|
| 772 |
case cscGetModeTiming: { // Get video timing for specified resolution |
| 773 |
uint32 id = ReadMacInt32(param + csTimingMode); |
| 774 |
D(bug(" GetModeTiming %08x\n", id)); |
| 775 |
if (!has_resolution(id)) |
| 776 |
return paramErr; |
| 777 |
|
| 778 |
WriteMacInt32(param + csTimingFormat, FOURCC('d', 'e', 'c', 'l')); |
| 779 |
WriteMacInt32(param + csTimingData, 0); // unknown |
| 780 |
uint32 flags = 0xb; // mode valid, safe and shown in Monitors panel |
| 781 |
if (id == VidLocal.preferred_id) |
| 782 |
flags |= 4; // default mode |
| 783 |
WriteMacInt32(param + csTimingFlags, flags); |
| 784 |
return noErr; |
| 785 |
} |
| 786 |
|
| 787 |
case cscGetModeBaseAddress: // Get frame buffer base address |
| 788 |
D(bug(" GetModeBaseAddress -> base %08x\n", VidLocal.desc->mac_frame_base)); |
| 789 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
| 790 |
return noErr; |
| 791 |
|
| 792 |
case cscGetPreferredConfiguration: // Get default video mode (depth and resolution) |
| 793 |
D(bug(" GetPreferredConfiguration -> %04x/%08x\n", VidLocal.preferred_mode, VidLocal.preferred_id)); |
| 794 |
WriteMacInt16(param + csMode, VidLocal.preferred_mode); |
| 795 |
WriteMacInt32(param + csData, VidLocal.preferred_id); |
| 796 |
return noErr; |
| 797 |
|
| 798 |
case cscGetNextResolution: { // Called iteratively to obtain a list of all supported resolutions |
| 799 |
uint32 id = ReadMacInt32(param + csPreviousDisplayModeID); |
| 800 |
D(bug(" GetNextResolution %08x\n", id)); |
| 801 |
|
| 802 |
switch (id) { |
| 803 |
case 0: |
| 804 |
// Return current resolution |
| 805 |
id = VidLocal.current_id; |
| 806 |
break; |
| 807 |
|
| 808 |
case 0xfffffffe: |
| 809 |
// Return first supported resolution |
| 810 |
id = 0x80; |
| 811 |
while (!has_resolution(id)) |
| 812 |
id++; |
| 813 |
break; |
| 814 |
|
| 815 |
default: |
| 816 |
// Get next resolution |
| 817 |
if (!has_resolution(id)) |
| 818 |
return paramErr; |
| 819 |
id++; |
| 820 |
while (!has_resolution(id) && id < 0x100) |
| 821 |
id++; |
| 822 |
if (id == 0x100) { // No more resolutions |
| 823 |
WriteMacInt32(param + csRIDisplayModeID, 0xfffffffd); |
| 824 |
return noErr; |
| 825 |
} |
| 826 |
break; |
| 827 |
} |
| 828 |
|
| 829 |
WriteMacInt32(param + csRIDisplayModeID, id); |
| 830 |
uint32 x, y; |
| 831 |
get_size_of_resolution(id, x, y); |
| 832 |
WriteMacInt32(param + csHorizontalPixels, x); |
| 833 |
WriteMacInt32(param + csVerticalLines, y); |
| 834 |
WriteMacInt32(param + csRefreshRate, 75 << 16); |
| 835 |
WriteMacInt16(param + csMaxDepthMode, DepthToAppleMode(max_depth_of_resolution(id))); |
| 836 |
WriteMacInt32(param + csResolutionFlags, 0); |
| 837 |
return noErr; |
| 838 |
} |
| 839 |
|
| 840 |
case cscGetVideoParameters: { // Get information about specified resolution/depth |
| 841 |
uint32 id = ReadMacInt32(param + csDisplayModeID); |
| 842 |
uint16 mode = ReadMacInt16(param + csDepthMode); |
| 843 |
D(bug(" GetVideoParameters %04x/%08x\n", mode, id)); |
| 844 |
VidLocal.dm_present = true; // Display Manager seems to be present |
| 845 |
|
| 846 |
vector<video_mode>::const_iterator i, end = VideoModes.end(); |
| 847 |
for (i = VideoModes.begin(); i != end; ++i) { |
| 848 |
if (DepthToAppleMode(i->depth) == mode && i->resolution_id == id) { |
| 849 |
uint32 vp = ReadMacInt32(param + csVPBlockPtr); |
| 850 |
WriteMacInt32(vp + vpBaseOffset, 0); |
| 851 |
WriteMacInt16(vp + vpRowBytes, i->bytes_per_row); |
| 852 |
WriteMacInt16(vp + vpBounds, 0); |
| 853 |
WriteMacInt16(vp + vpBounds + 2, 0); |
| 854 |
WriteMacInt16(vp + vpBounds + 4, i->y); |
| 855 |
WriteMacInt16(vp + vpBounds + 6, i->x); |
| 856 |
WriteMacInt16(vp + vpVersion, 0); |
| 857 |
WriteMacInt16(vp + vpPackType, 0); |
| 858 |
WriteMacInt32(vp + vpPackSize, 0); |
| 859 |
WriteMacInt32(vp + vpHRes, 0x00480000); // 72 dpi |
| 860 |
WriteMacInt32(vp + vpVRes, 0x00480000); |
| 861 |
uint32 pix_type, pix_size, cmp_count, cmp_size, dev_type; |
| 862 |
switch (i->depth) { |
| 863 |
case VDEPTH_1BIT: |
| 864 |
pix_type = 0; pix_size = 1; |
| 865 |
cmp_count = 1; cmp_size = 1; |
| 866 |
dev_type = 0; // CLUT |
| 867 |
break; |
| 868 |
case VDEPTH_2BIT: |
| 869 |
pix_type = 0; pix_size = 2; |
| 870 |
cmp_count = 1; cmp_size = 2; |
| 871 |
dev_type = 0; // CLUT |
| 872 |
break; |
| 873 |
case VDEPTH_4BIT: |
| 874 |
pix_type = 0; pix_size = 4; |
| 875 |
cmp_count = 1; cmp_size = 4; |
| 876 |
dev_type = 0; // CLUT |
| 877 |
break; |
| 878 |
case VDEPTH_8BIT: |
| 879 |
pix_type = 0; pix_size = 8; |
| 880 |
cmp_count = 1; cmp_size = 8; |
| 881 |
dev_type = 0; // CLUT |
| 882 |
break; |
| 883 |
case VDEPTH_16BIT: |
| 884 |
pix_type = 0x10; pix_size = 16; |
| 885 |
cmp_count = 3; cmp_size = 5; |
| 886 |
dev_type = 2; // direct |
| 887 |
break; |
| 888 |
case VDEPTH_32BIT: |
| 889 |
pix_type = 0x10; pix_size = 32; |
| 890 |
cmp_count = 3; cmp_size = 8; |
| 891 |
dev_type = 2; // direct |
| 892 |
break; |
| 893 |
} |
| 894 |
WriteMacInt16(vp + vpPixelType, pix_type); |
| 895 |
WriteMacInt16(vp + vpPixelSize, pix_size); |
| 896 |
WriteMacInt16(vp + vpCmpCount, cmp_count); |
| 897 |
WriteMacInt16(vp + vpCmpSize, cmp_size); |
| 898 |
WriteMacInt32(param + csPageCount, 1); |
| 899 |
WriteMacInt32(param + csDeviceType, dev_type); |
| 900 |
return noErr; |
| 901 |
} |
| 902 |
} |
| 903 |
return paramErr; // specified resolution/depth not supported |
| 904 |
} |
| 905 |
|
| 906 |
case cscGetMultiConnect: { |
| 907 |
uint32 conn = ReadMacInt32(param + csDisplayCountOrNumber); |
| 908 |
D(bug(" GetMultiConnect %08x\n", conn)); |
| 909 |
if (conn == 0xffffffff) { // Get number of connections |
| 910 |
WriteMacInt32(param + csDisplayCountOrNumber, 1); // Single-headed |
| 911 |
return noErr; |
| 912 |
} else if (conn == 1) { // Get information about first connection |
| 913 |
WriteMacInt16(param + csConnectInfo + csDisplayType, 8); // Modeless connection |
| 914 |
WriteMacInt8(param + csConnectInfo + csConnectTaggedType, 0); |
| 915 |
WriteMacInt8(param + csConnectInfo + csConnectTaggedData, 0); |
| 916 |
WriteMacInt32(param + csConnectInfo + csConnectFlags, 0x43); // All modes valid and safe, non-standard tagging |
| 917 |
WriteMacInt32(param + csConnectInfo + csDisplayComponent, 0); |
| 918 |
return noErr; |
| 919 |
} else |
| 920 |
return paramErr; |
| 921 |
} |
| 922 |
|
| 923 |
default: |
| 924 |
printf("WARNING: Unknown VideoDriverStatus(%d)\n", code); |
| 925 |
return statusErr; |
| 926 |
} |
| 927 |
} |
