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/* |
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* video.cpp - Video/graphics emulation |
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* |
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* Basilisk II (C) 1997-2002 Christian Bauer |
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* Portions written by Marc Hellwig |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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/* |
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* SEE ALSO |
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* Inside Macintosh: Devices, chapter 1 "Device Manager" |
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* Designing Cards and Drivers for the Macintosh Family, Second Edition |
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* Designing PCI Cards and Drivers for Power Macintosh Computers |
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* Display Device Driver Guide |
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*/ |
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|
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#include <stdio.h> |
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|
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#include "sysdeps.h" |
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#include "cpu_emulation.h" |
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#include "main.h" |
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#include "macos_util.h" |
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#include "slot_rom.h" |
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#include "video.h" |
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#include "video_defs.h" |
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|
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#define DEBUG 0 |
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#include "debug.h" |
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|
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|
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// List of supported video modes |
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vector<video_mode> VideoModes; |
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|
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// Description of the main monitor |
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monitor_desc VideoMonitor; |
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|
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// Depth code -> Apple mode mapping |
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uint16 apple_mode_for_depth[6]; |
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|
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// Local variables (per monitor) |
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struct { |
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monitor_desc *desc; // Pointer to description of monitor handled by this instance of the driver |
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uint8 palette[256 * 3]; // Color palette, 256 entries, RGB |
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bool luminance_mapping; // Luminance mapping on/off |
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bool interrupts_enabled; // VBL interrupts on/off |
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bool dm_present; // We received a GetVideoParameters call, so the Display Manager seems to be present |
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uint32 gamma_table; // Mac address of gamma table |
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int alloc_gamma_table_size; // Allocated size of gamma table |
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uint16 current_mode; // Currently selected depth/resolution |
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uint32 current_id; |
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uint16 preferred_mode; // Preferred depth/resolution |
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uint32 preferred_id; |
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uint32 slot_param; // Mac address of Slot Manager parameter block |
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} VidLocal; |
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|
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|
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/* |
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* Initialize apple_mode_for_depth[] array from VideoModes list |
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*/ |
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|
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void video_init_depth_list(void) |
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{ |
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uint16 mode = 0x80; |
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for (int depth = VDEPTH_1BIT; depth <= VDEPTH_32BIT; depth++) { |
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if (video_has_depth(video_depth(depth))) |
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apple_mode_for_depth[depth] = mode++; |
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else |
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apple_mode_for_depth[depth] = 0; |
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} |
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} |
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|
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|
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/* |
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* Check whether a mode with the specified depth exists |
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*/ |
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|
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bool video_has_depth(video_depth depth) |
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{ |
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vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end(); |
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while (i != end) { |
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if (i->depth == depth) |
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return true; |
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++i; |
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} |
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return false; |
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} |
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|
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|
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/* |
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* Check whether specified resolution ID is one of the supported resolutions |
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*/ |
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|
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static bool has_resolution(uint32 id) |
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{ |
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vector<video_mode>::const_iterator i, end = VideoModes.end(); |
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for (i = VideoModes.begin(); i != end; ++i) { |
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if (i->resolution_id == id) |
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return true; |
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} |
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return false; |
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} |
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|
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|
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/* |
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* Find specified mode (depth/resolution) (or VideoModes.end() if not found) |
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*/ |
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|
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static vector<video_mode>::const_iterator find_mode(uint16 mode, uint32 id) |
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{ |
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vector<video_mode>::const_iterator i, end = VideoModes.end(); |
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for (i = VideoModes.begin(); i != end; ++i) { |
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if (i->resolution_id == id && DepthToAppleMode(i->depth) == mode) |
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return i; |
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} |
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return i; |
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} |
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|
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|
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/* |
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* Find maximum supported depth for given resolution ID |
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*/ |
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|
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static video_depth max_depth_of_resolution(uint32 id) |
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{ |
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video_depth m = VDEPTH_1BIT; |
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vector<video_mode>::const_iterator i, end = VideoModes.end(); |
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for (i = VideoModes.begin(); i != end; ++i) { |
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if (i->depth > m) |
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m = i->depth; |
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} |
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return m; |
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} |
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|
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|
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/* |
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* Get X/Y size of specified resolution |
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*/ |
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|
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static void get_size_of_resolution(uint32 id, uint32 &x, uint32 &y) |
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{ |
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vector<video_mode>::const_iterator i, end = VideoModes.end(); |
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for (i = VideoModes.begin(); i != end; ++i) { |
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if (i->resolution_id == id) { |
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x = i->x; |
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y = i->y; |
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return; |
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} |
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} |
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x = y = 0; |
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} |
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|
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|
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/* |
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* Get bytes-per-row value for specified resolution/depth |
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*/ |
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|
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uint32 video_bytes_per_row(video_depth depth, uint32 id) |
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{ |
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vector<video_mode>::const_iterator i, end = VideoModes.end(); |
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for (i = VideoModes.begin(); i != end; ++i) { |
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if (i->depth == depth && i->resolution_id == id) |
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return i->bytes_per_row; |
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} |
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uint32 x, y; |
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get_size_of_resolution(id, x, y); |
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return TrivialBytesPerRow(x, depth); |
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} |
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|
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|
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/* |
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* Find palette size for given color depth |
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*/ |
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|
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static int palette_size(video_depth depth) |
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{ |
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switch (depth) { |
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case VDEPTH_1BIT: return 2; |
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case VDEPTH_2BIT: return 4; |
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case VDEPTH_4BIT: return 16; |
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case VDEPTH_8BIT: return 256; |
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case VDEPTH_16BIT: return 32; |
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case VDEPTH_32BIT: return 256; |
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default: return 0; |
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} |
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} |
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|
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|
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/* |
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* Set palette to 50% gray |
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*/ |
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|
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static void set_gray_palette(void) |
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{ |
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for (int i=0; i<256; i++) { |
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VidLocal.palette[i * 3 + 0] = 127; |
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VidLocal.palette[i * 3 + 1] = 127; |
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VidLocal.palette[i * 3 + 2] = 127; |
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} |
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video_set_palette(VidLocal.palette, 256); |
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} |
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|
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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 |
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*/ |
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|
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static void load_ramp_palette(void) |
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{ |
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// Find tables for gamma correction |
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uint8 *red_gamma = NULL, *green_gamma = NULL, *blue_gamma = NULL; |
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bool have_gamma = false; |
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int data_width = 0; |
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if (VidLocal.gamma_table) { |
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uint32 table = VidLocal.gamma_table; |
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red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize)); |
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int chan_cnt = ReadMacInt16(table + gChanCnt); |
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if (chan_cnt == 1) |
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green_gamma = blue_gamma = red_gamma; |
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else { |
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int ofs = ReadMacInt16(table + gDataCnt); |
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green_gamma = red_gamma + ofs; |
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blue_gamma = green_gamma + ofs; |
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} |
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data_width = ReadMacInt16(table + gDataWidth); |
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have_gamma = true; |
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} |
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|
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int num = (VidLocal.desc->mode.depth == VDEPTH_16BIT ? 32 : 256); |
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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; |
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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)]; |
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} |
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*p++ = red; |
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*p++ = green; |
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*p++ = blue; |
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} |
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|
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video_set_palette(VidLocal.palette, num); |
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} |
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|
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|
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/* |
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* Allocate gamma table of specified size |
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*/ |
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|
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static bool allocate_gamma_table(int size) |
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{ |
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M68kRegisters r; |
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|
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if (size > VidLocal.alloc_gamma_table_size) { |
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if (VidLocal.gamma_table) { |
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r.a[0] = VidLocal.gamma_table; |
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Execute68kTrap(0xa01f, &r); // DisposePtr() |
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VidLocal.gamma_table = 0; |
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VidLocal.alloc_gamma_table_size = 0; |
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} |
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r.d[0] = size; |
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Execute68kTrap(0xa71e, &r); // NewPtrSysClear() |
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if (r.a[0] == 0) |
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return false; |
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VidLocal.gamma_table = r.a[0]; |
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VidLocal.alloc_gamma_table_size = size; |
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} |
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return true; |
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} |
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|
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|
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/* |
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* Set gamma table (0 = build linear ramp) |
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*/ |
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|
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static bool set_gamma_table(uint32 user_table) |
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{ |
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if (user_table == 0) { // Build linear ramp, 256 entries |
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|
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// Allocate new table, if necessary |
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if (!allocate_gamma_table(SIZEOF_GammaTbl + 256)) |
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return memFullErr; |
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uint32 table = VidLocal.gamma_table; |
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|
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// Initialize header |
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WriteMacInt16(table + gVersion, 0); |
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WriteMacInt16(table + gType, 0); |
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WriteMacInt16(table + gFormulaSize, 0); |
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WriteMacInt16(table + gChanCnt, 1); |
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WriteMacInt16(table + gDataCnt, 256); |
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WriteMacInt16(table + gDataWidth, 8); |
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|
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// Build ramp |
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uint32 p = table + gFormulaData; |
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for (int i=0; i<256; i++) |
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WriteMacInt8(p + i, i); |
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|
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} else { // User-supplied gamma table |
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|
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// Validate header |
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if (ReadMacInt16(user_table + gVersion)) |
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return paramErr; |
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if (ReadMacInt16(user_table + gType)) |
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return paramErr; |
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int chan_cnt = ReadMacInt16(user_table + gChanCnt); |
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if (chan_cnt != 1 && chan_cnt != 3) |
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return paramErr; |
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int data_width = ReadMacInt16(user_table + gDataWidth); |
322 |
if (data_width > 8) |
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return paramErr; |
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int data_cnt = ReadMacInt16(user_table + gDataCnt); |
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if (data_cnt != (1 << data_width)) |
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return paramErr; |
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|
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// Allocate new table, if necessary |
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int size = SIZEOF_GammaTbl + ReadMacInt16(user_table + gFormulaSize) + chan_cnt * data_cnt; |
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if (!allocate_gamma_table(size)) |
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return memFullErr; |
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uint32 table = VidLocal.gamma_table; |
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|
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// Copy table |
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Mac2Mac_memcpy(table, user_table, size); |
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} |
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|
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if (IsDirectMode(VidLocal.desc->mode)) |
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load_ramp_palette(); |
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|
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return true; |
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} |
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|
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|
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/* |
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* Switch video mode |
347 |
*/ |
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|
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static void switch_mode(const video_mode &mode, uint32 param, uint32 dce) |
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{ |
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// Switch mode |
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set_gray_palette(); |
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video_switch_to_mode(mode); |
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|
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// Update VidLocal |
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VidLocal.current_mode = DepthToAppleMode(mode.depth); |
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VidLocal.current_id = mode.resolution_id; |
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|
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uint32 frame_base = VidLocal.desc->mac_frame_base; |
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|
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M68kRegisters r; |
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uint32 sp = VidLocal.slot_param; |
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r.a[0] = sp; |
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|
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// Find functional sResource for this display |
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WriteMacInt8(sp + spSlot, ReadMacInt8(dce + dCtlSlot)); |
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WriteMacInt8(sp + spID, ReadMacInt8(dce + dCtlSlotId)); |
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WriteMacInt8(sp + spExtDev, 0); |
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r.d[0] = 0x0016; |
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Execute68kTrap(0xa06e, &r); // SRsrcInfo() |
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uint32 rsrc = ReadMacInt32(sp + spPointer); |
372 |
|
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// Patch minorBase (otherwise rebooting won't work) |
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WriteMacInt8(sp + spID, 0x0a); // minorBase |
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r.d[0] = 0x0006; |
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Execute68kTrap(0xa06e, &r); // SFindStruct() |
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uint32 minor_base = ReadMacInt32(sp + spPointer) - ROMBaseMac; |
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ROMBaseHost[minor_base + 0] = frame_base >> 24; |
379 |
ROMBaseHost[minor_base + 1] = frame_base >> 16; |
380 |
ROMBaseHost[minor_base + 2] = frame_base >> 8; |
381 |
ROMBaseHost[minor_base + 3] = frame_base; |
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|
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// Patch video mode parameter table |
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WriteMacInt32(sp + spPointer, rsrc); |
385 |
WriteMacInt8(sp + spID, DepthToAppleMode(mode.depth)); |
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r.d[0] = 0x0006; |
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Execute68kTrap(0xa06e, &r); // SFindStruct() |
388 |
WriteMacInt8(sp + spID, 0x01); |
389 |
r.d[0] = 0x0006; |
390 |
Execute68kTrap(0xa06e, &r); // SFindStruct() |
391 |
uint32 p = ReadMacInt32(sp + spPointer) - ROMBaseMac; |
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ROMBaseHost[p + 8] = mode.bytes_per_row >> 8; |
393 |
ROMBaseHost[p + 9] = mode.bytes_per_row; |
394 |
ROMBaseHost[p + 14] = mode.y >> 8; |
395 |
ROMBaseHost[p + 15] = mode.y; |
396 |
ROMBaseHost[p + 16] = mode.x >> 8; |
397 |
ROMBaseHost[p + 17] = mode.x; |
398 |
|
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// Recalculate slot ROM checksum |
400 |
ChecksumSlotROM(); |
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|
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// Update sResource |
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WriteMacInt8(sp + spID, ReadMacInt8(dce + dCtlSlotId)); |
404 |
r.d[0] = 0x002b; |
405 |
Execute68kTrap(0xa06e, &r); // SUpdateSRT() |
406 |
|
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// Update frame buffer base in DCE and param block |
408 |
WriteMacInt32(dce + dCtlDevBase, frame_base); |
409 |
WriteMacInt32(param + csBaseAddr, frame_base); |
410 |
|
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// Patch frame buffer base address for MacOS versions <7.6 |
412 |
if (!VidLocal.dm_present) { // Only do this when no Display Manager seems to be present; otherwise, the screen will not get redrawn |
413 |
WriteMacInt32(0x824, frame_base); // ScrnBase |
414 |
WriteMacInt32(0x898, frame_base); // CrsrBase |
415 |
uint32 gdev = ReadMacInt32(0x8a4); // MainDevice |
416 |
gdev = ReadMacInt32(gdev); |
417 |
uint32 pmap = ReadMacInt32(gdev + 0x16); // gdPMap |
418 |
pmap = ReadMacInt32(pmap); |
419 |
WriteMacInt32(pmap, frame_base); // baseAddr |
420 |
} |
421 |
} |
422 |
|
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|
424 |
/* |
425 |
* Driver Open() routine |
426 |
*/ |
427 |
|
428 |
int16 VideoDriverOpen(uint32 pb, uint32 dce) |
429 |
{ |
430 |
D(bug("VideoDriverOpen\n")); |
431 |
|
432 |
// This shouldn't happen unless the platform-specific video code is broken |
433 |
if (VideoModes.empty()) |
434 |
fprintf(stderr, "No valid video modes found (broken video driver?)\n"); |
435 |
|
436 |
// Init local variables |
437 |
VidLocal.desc = &VideoMonitor; |
438 |
VidLocal.luminance_mapping = false; |
439 |
VidLocal.interrupts_enabled = false; |
440 |
VidLocal.current_mode = DepthToAppleMode(VidLocal.desc->mode.depth); |
441 |
VidLocal.current_id = VidLocal.desc->mode.resolution_id; |
442 |
VidLocal.preferred_mode = VidLocal.current_mode; |
443 |
VidLocal.preferred_id = VidLocal.current_id; |
444 |
VidLocal.dm_present = false; |
445 |
|
446 |
// Allocate Slot Manager parameter block in Mac RAM |
447 |
M68kRegisters r; |
448 |
r.d[0] = SIZEOF_SPBlock; |
449 |
Execute68kTrap(0xa71e, &r); // NewPtrSysClear() |
450 |
if (r.a[0] == 0) |
451 |
return memFullErr; |
452 |
VidLocal.slot_param = r.a[0]; |
453 |
D(bug("SPBlock at %08x\n", VidLocal.slot_param)); |
454 |
|
455 |
// Find and set default gamma table |
456 |
VidLocal.gamma_table = 0; |
457 |
VidLocal.alloc_gamma_table_size = 0; |
458 |
set_gamma_table(0); |
459 |
|
460 |
// Init color palette (solid gray) |
461 |
set_gray_palette(); |
462 |
return noErr; |
463 |
} |
464 |
|
465 |
|
466 |
/* |
467 |
* Driver Control() routine |
468 |
*/ |
469 |
|
470 |
int16 VideoDriverControl(uint32 pb, uint32 dce) |
471 |
{ |
472 |
uint16 code = ReadMacInt16(pb + csCode); |
473 |
uint32 param = ReadMacInt32(pb + csParam); |
474 |
D(bug("VideoDriverControl %d\n", code)); |
475 |
switch (code) { |
476 |
|
477 |
case cscSetMode: { // Set color depth |
478 |
uint16 mode = ReadMacInt16(param + csMode); |
479 |
D(bug(" SetMode %04x\n", mode)); |
480 |
|
481 |
// Set old base address in case the switch fails |
482 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
483 |
|
484 |
if (ReadMacInt16(param + csPage)) |
485 |
return paramErr; |
486 |
|
487 |
if (mode != VidLocal.current_mode) { |
488 |
vector<video_mode>::const_iterator i = find_mode(mode, VidLocal.current_id); |
489 |
if (i == VideoModes.end()) |
490 |
return paramErr; |
491 |
switch_mode(*i, param, dce); |
492 |
} |
493 |
D(bug(" base %08x\n", VidLocal.desc->mac_frame_base)); |
494 |
return noErr; |
495 |
} |
496 |
|
497 |
case cscSetEntries: // Set palette |
498 |
case cscDirectSetEntries: { |
499 |
D(bug(" (Direct)SetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart))); |
500 |
bool is_direct = IsDirectMode(VidLocal.desc->mode); |
501 |
if (code == cscSetEntries && is_direct) |
502 |
return controlErr; |
503 |
if (code == cscDirectSetEntries && !is_direct) |
504 |
return controlErr; |
505 |
|
506 |
uint32 s_pal = ReadMacInt32(param + csTable); // Source palette |
507 |
uint8 *d_pal; // Destination palette |
508 |
uint16 start = ReadMacInt16(param + csStart); |
509 |
uint16 count = ReadMacInt16(param + csCount); |
510 |
if (s_pal == 0 || count > 255) |
511 |
return paramErr; |
512 |
|
513 |
// Find tables for gamma correction |
514 |
uint8 *red_gamma = NULL, *green_gamma = NULL, *blue_gamma = NULL; |
515 |
bool have_gamma = false; |
516 |
int data_width = 0; |
517 |
if (VidLocal.gamma_table) { |
518 |
uint32 table = VidLocal.gamma_table; |
519 |
red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize)); |
520 |
int chan_cnt = ReadMacInt16(table + gChanCnt); |
521 |
if (chan_cnt == 1) |
522 |
green_gamma = blue_gamma = red_gamma; |
523 |
else { |
524 |
int ofs = ReadMacInt16(table + gDataCnt); |
525 |
green_gamma = red_gamma + ofs; |
526 |
blue_gamma = green_gamma + ofs; |
527 |
} |
528 |
data_width = ReadMacInt16(table + gDataWidth); |
529 |
have_gamma = true; |
530 |
} |
531 |
|
532 |
// Convert palette |
533 |
if (start == 0xffff) { // Indexed |
534 |
for (uint32 i=0; i<=count; i++) { |
535 |
d_pal = VidLocal.palette + (ReadMacInt16(s_pal) & 0xff) * 3; |
536 |
uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8; |
537 |
uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8; |
538 |
uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8; |
539 |
if (VidLocal.luminance_mapping && !is_direct) |
540 |
red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16; |
541 |
if (have_gamma) { |
542 |
red = red_gamma[red >> (8 - data_width)]; |
543 |
green = green_gamma[green >> (8 - data_width)]; |
544 |
blue = blue_gamma[blue >> (8 - data_width)]; |
545 |
} |
546 |
*d_pal++ = red; |
547 |
*d_pal++ = green; |
548 |
*d_pal++ = blue; |
549 |
s_pal += 8; |
550 |
} |
551 |
} else { // Sequential |
552 |
if (start + count > 255) |
553 |
return paramErr; |
554 |
d_pal = VidLocal.palette + start * 3; |
555 |
for (uint32 i=0; i<=count; i++) { |
556 |
uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8; |
557 |
uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8; |
558 |
uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8; |
559 |
if (VidLocal.luminance_mapping && !is_direct) |
560 |
red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16; |
561 |
if (have_gamma) { |
562 |
red = red_gamma[red >> (8 - data_width)]; |
563 |
green = green_gamma[green >> (8 - data_width)]; |
564 |
blue = blue_gamma[blue >> (8 - data_width)]; |
565 |
} |
566 |
*d_pal++ = red; |
567 |
*d_pal++ = green; |
568 |
*d_pal++ = blue; |
569 |
s_pal += 8; |
570 |
} |
571 |
} |
572 |
video_set_palette(VidLocal.palette, palette_size(VidLocal.desc->mode.depth)); |
573 |
return noErr; |
574 |
} |
575 |
|
576 |
case cscSetGamma: { // Set gamma table |
577 |
uint32 user_table = ReadMacInt32(param + csGTable); |
578 |
D(bug(" SetGamma %08x\n", user_table)); |
579 |
return set_gamma_table(user_table) ? noErr : memFullErr; |
580 |
} |
581 |
|
582 |
case cscGrayPage: { // Fill page with dithered gray pattern |
583 |
D(bug(" GrayPage %d\n", ReadMacInt16(param + csPage))); |
584 |
if (ReadMacInt16(param + csPage)) |
585 |
return paramErr; |
586 |
|
587 |
uint32 pattern[6] = { |
588 |
0xaaaaaaaa, // 1 bpp |
589 |
0xcccccccc, // 2 bpp |
590 |
0xf0f0f0f0, // 4 bpp |
591 |
0xff00ff00, // 8 bpp |
592 |
0xffff0000, // 16 bpp |
593 |
0xffffffff // 32 bpp |
594 |
}; |
595 |
uint32 frame_base = VidLocal.desc->mac_frame_base; |
596 |
uint32 pat = pattern[VidLocal.desc->mode.depth]; |
597 |
bool invert = (VidLocal.desc->mode.depth == VDEPTH_32BIT); |
598 |
for (uint32 y=0; y<VidLocal.desc->mode.y; y++) { |
599 |
for (uint32 x=0; x<VidLocal.desc->mode.bytes_per_row; x+=4) { |
600 |
WriteMacInt32(frame_base + x, pat); |
601 |
if (invert) |
602 |
pat = ~pat; |
603 |
} |
604 |
frame_base += VidLocal.desc->mode.bytes_per_row; |
605 |
pat = ~pat; |
606 |
} |
607 |
|
608 |
if (IsDirectMode(VidLocal.desc->mode)) |
609 |
load_ramp_palette(); |
610 |
|
611 |
return noErr; |
612 |
} |
613 |
|
614 |
case cscSetGray: // Enable/disable luminance mapping |
615 |
D(bug(" SetGray %02x\n", ReadMacInt8(param + csMode))); |
616 |
VidLocal.luminance_mapping = ReadMacInt8(param + csMode); |
617 |
return noErr; |
618 |
|
619 |
case cscSetInterrupt: // Enable/disable VBL |
620 |
D(bug(" SetInterrupt %02x\n", ReadMacInt8(param + csMode))); |
621 |
VidLocal.interrupts_enabled = (ReadMacInt8(param + csMode) == 0); |
622 |
return noErr; |
623 |
|
624 |
case cscSetDefaultMode: { // Set default color depth |
625 |
uint16 mode = ReadMacInt8(param + csMode); |
626 |
D(bug(" SetDefaultMode %02x\n", mode)); |
627 |
VidLocal.preferred_mode = mode; |
628 |
return noErr; |
629 |
} |
630 |
|
631 |
case cscSwitchMode: { // Switch video mode (depth and resolution) |
632 |
uint16 mode = ReadMacInt16(param + csMode); |
633 |
uint32 id = ReadMacInt32(param + csData); |
634 |
D(bug(" SwitchMode %04x, %08x\n", mode, id)); |
635 |
|
636 |
// Set old base address in case the switch fails |
637 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
638 |
|
639 |
if (ReadMacInt16(param + csPage)) |
640 |
return paramErr; |
641 |
|
642 |
if (mode != VidLocal.current_mode || id != VidLocal.current_id) { |
643 |
vector<video_mode>::const_iterator i = find_mode(mode, id); |
644 |
if (i == VideoModes.end()) |
645 |
return paramErr; |
646 |
switch_mode(*i, param, dce); |
647 |
} |
648 |
D(bug(" base %08x\n", VidLocal.desc->mac_frame_base)); |
649 |
return noErr; |
650 |
} |
651 |
|
652 |
case cscSavePreferredConfiguration: { |
653 |
uint16 mode = ReadMacInt16(param + csMode); |
654 |
uint32 id = ReadMacInt32(param + csData); |
655 |
D(bug(" SavePreferredConfiguration %04x, %08x\n", mode, id)); |
656 |
VidLocal.preferred_mode = mode; |
657 |
VidLocal.preferred_id = id; |
658 |
return noErr; |
659 |
} |
660 |
|
661 |
default: |
662 |
printf("WARNING: Unknown VideoDriverControl(%d)\n", code); |
663 |
return controlErr; |
664 |
} |
665 |
} |
666 |
|
667 |
|
668 |
/* |
669 |
* Driver Status() routine |
670 |
*/ |
671 |
|
672 |
int16 VideoDriverStatus(uint32 pb, uint32 dce) |
673 |
{ |
674 |
uint16 code = ReadMacInt16(pb + csCode); |
675 |
uint32 param = ReadMacInt32(pb + csParam); |
676 |
D(bug("VideoDriverStatus %d\n", code)); |
677 |
switch (code) { |
678 |
|
679 |
case cscGetMode: // Get current color depth |
680 |
D(bug(" GetMode -> %04x, base %08x\n", VidLocal.current_mode, VidLocal.desc->mac_frame_base)); |
681 |
WriteMacInt16(param + csMode, VidLocal.current_mode); |
682 |
WriteMacInt16(param + csPage, 0); |
683 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
684 |
return noErr; |
685 |
|
686 |
case cscGetEntries: { // Read palette |
687 |
D(bug(" GetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart))); |
688 |
|
689 |
uint8 *s_pal; // Source palette |
690 |
uint32 d_pal = ReadMacInt32(param + csTable); // Destination palette |
691 |
uint16 start = ReadMacInt16(param + csStart); |
692 |
uint16 count = ReadMacInt16(param + csCount); |
693 |
if (d_pal == 0 || count > 255) |
694 |
return paramErr; |
695 |
|
696 |
if (start == 0xffff) { // Indexed |
697 |
for (uint32 i=0; i<=count; i++) { |
698 |
s_pal = VidLocal.palette + (ReadMacInt16(d_pal) & 0xff) * 3; |
699 |
uint8 red = *s_pal++; |
700 |
uint8 green = *s_pal++; |
701 |
uint8 blue = *s_pal++; |
702 |
WriteMacInt16(d_pal + 2, red * 0x0101); |
703 |
WriteMacInt16(d_pal + 4, green * 0x0101); |
704 |
WriteMacInt16(d_pal + 6, blue * 0x0101); |
705 |
d_pal += 8; |
706 |
} |
707 |
} else { // Sequential |
708 |
if (start + count > 255) |
709 |
return paramErr; |
710 |
s_pal = VidLocal.palette + start * 3; |
711 |
for (uint32 i=0; i<=count; i++) { |
712 |
uint8 red = *s_pal++; |
713 |
uint8 green = *s_pal++; |
714 |
uint8 blue = *s_pal++; |
715 |
WriteMacInt16(d_pal + 2, red * 0x0101); |
716 |
WriteMacInt16(d_pal + 4, green * 0x0101); |
717 |
WriteMacInt16(d_pal + 6, blue * 0x0101); |
718 |
d_pal += 8; |
719 |
} |
720 |
} |
721 |
return noErr; |
722 |
} |
723 |
|
724 |
case cscGetPages: // Get number of pages |
725 |
D(bug(" GetPages -> 1\n")); |
726 |
WriteMacInt16(param + csPage, 1); |
727 |
return noErr; |
728 |
|
729 |
case cscGetBaseAddress: // Get page base address |
730 |
D(bug(" GetBaseAddress -> %08x\n", VidLocal.desc->mac_frame_base)); |
731 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
732 |
if (ReadMacInt16(param + csPage)) |
733 |
return paramErr; |
734 |
else |
735 |
return noErr; |
736 |
|
737 |
case cscGetGray: // Get luminance mapping flag |
738 |
D(bug(" GetGray -> %d\n", VidLocal.luminance_mapping)); |
739 |
WriteMacInt8(param, VidLocal.luminance_mapping ? 1 : 0); |
740 |
return noErr; |
741 |
|
742 |
case cscGetInterrupt: // Get interrupt disable flag |
743 |
D(bug(" GetInterrupt -> %d\n", VidLocal.interrupts_enabled)); |
744 |
WriteMacInt8(param, VidLocal.interrupts_enabled ? 0 : 1); |
745 |
return noErr; |
746 |
|
747 |
case cscGetGamma: |
748 |
D(bug(" GetGamma -> %08x\n", VidLocal.gamma_table)); |
749 |
WriteMacInt32(param + csGTable, VidLocal.gamma_table); |
750 |
return noErr; |
751 |
|
752 |
case cscGetDefaultMode: // Get default color depth |
753 |
D(bug(" GetDefaultMode -> %02x\n", VidLocal.preferred_mode)); |
754 |
WriteMacInt8(param + csMode, VidLocal.preferred_mode); |
755 |
return noErr; |
756 |
|
757 |
case cscGetCurrentMode: // Get current video mode (depth and resolution) |
758 |
D(bug(" GetCurMode -> %04x/%08x, base %08x\n", VidLocal.current_mode, VidLocal.current_id, VidLocal.desc->mac_frame_base)); |
759 |
WriteMacInt16(param + csMode, VidLocal.current_mode); |
760 |
WriteMacInt32(param + csData, VidLocal.current_id); |
761 |
WriteMacInt16(param + csPage, 0); |
762 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
763 |
return noErr; |
764 |
|
765 |
case cscGetConnection: // Get monitor information |
766 |
D(bug(" GetConnection\n")); |
767 |
WriteMacInt16(param + csDisplayType, 8); // Modeless connection |
768 |
WriteMacInt8(param + csConnectTaggedType, 0); |
769 |
WriteMacInt8(param + csConnectTaggedData, 0); |
770 |
WriteMacInt32(param + csConnectFlags, 0x43); // All modes valid and safe, non-standard tagging |
771 |
WriteMacInt32(param + csDisplayComponent, 0); |
772 |
return noErr; |
773 |
|
774 |
case cscGetModeTiming: { // Get video timing for specified resolution |
775 |
uint32 id = ReadMacInt32(param + csTimingMode); |
776 |
D(bug(" GetModeTiming %08x\n", id)); |
777 |
if (!has_resolution(id)) |
778 |
return paramErr; |
779 |
|
780 |
WriteMacInt32(param + csTimingFormat, FOURCC('d', 'e', 'c', 'l')); |
781 |
WriteMacInt32(param + csTimingData, 0); // unknown |
782 |
uint32 flags = 0xb; // mode valid, safe and shown in Monitors panel |
783 |
if (id == VidLocal.preferred_id) |
784 |
flags |= 4; // default mode |
785 |
WriteMacInt32(param + csTimingFlags, flags); |
786 |
return noErr; |
787 |
} |
788 |
|
789 |
case cscGetModeBaseAddress: // Get frame buffer base address |
790 |
D(bug(" GetModeBaseAddress -> base %08x\n", VidLocal.desc->mac_frame_base)); |
791 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
792 |
return noErr; |
793 |
|
794 |
case cscGetPreferredConfiguration: // Get default video mode (depth and resolution) |
795 |
D(bug(" GetPreferredConfiguration -> %04x/%08x\n", VidLocal.preferred_mode, VidLocal.preferred_id)); |
796 |
WriteMacInt16(param + csMode, VidLocal.preferred_mode); |
797 |
WriteMacInt32(param + csData, VidLocal.preferred_id); |
798 |
return noErr; |
799 |
|
800 |
case cscGetNextResolution: { // Called iteratively to obtain a list of all supported resolutions |
801 |
uint32 id = ReadMacInt32(param + csPreviousDisplayModeID); |
802 |
D(bug(" GetNextResolution %08x\n", id)); |
803 |
|
804 |
switch (id) { |
805 |
case 0: |
806 |
// Return current resolution |
807 |
id = VidLocal.current_id; |
808 |
break; |
809 |
|
810 |
case 0xfffffffe: |
811 |
// Return first supported resolution |
812 |
id = 0x80; |
813 |
while (!has_resolution(id)) |
814 |
id++; |
815 |
break; |
816 |
|
817 |
default: |
818 |
// Get next resolution |
819 |
if (!has_resolution(id)) |
820 |
return paramErr; |
821 |
id++; |
822 |
while (!has_resolution(id) && id < 0x100) |
823 |
id++; |
824 |
if (id == 0x100) { // No more resolutions |
825 |
WriteMacInt32(param + csRIDisplayModeID, 0xfffffffd); |
826 |
return noErr; |
827 |
} |
828 |
break; |
829 |
} |
830 |
|
831 |
WriteMacInt32(param + csRIDisplayModeID, id); |
832 |
uint32 x, y; |
833 |
get_size_of_resolution(id, x, y); |
834 |
WriteMacInt32(param + csHorizontalPixels, x); |
835 |
WriteMacInt32(param + csVerticalLines, y); |
836 |
WriteMacInt32(param + csRefreshRate, 75 << 16); |
837 |
WriteMacInt16(param + csMaxDepthMode, DepthToAppleMode(max_depth_of_resolution(id))); |
838 |
WriteMacInt32(param + csResolutionFlags, 0); |
839 |
return noErr; |
840 |
} |
841 |
|
842 |
case cscGetVideoParameters: { // Get information about specified resolution/depth |
843 |
uint32 id = ReadMacInt32(param + csDisplayModeID); |
844 |
uint16 mode = ReadMacInt16(param + csDepthMode); |
845 |
D(bug(" GetVideoParameters %04x/%08x\n", mode, id)); |
846 |
VidLocal.dm_present = true; // Display Manager seems to be present |
847 |
|
848 |
vector<video_mode>::const_iterator i, end = VideoModes.end(); |
849 |
for (i = VideoModes.begin(); i != end; ++i) { |
850 |
if (DepthToAppleMode(i->depth) == mode && i->resolution_id == id) { |
851 |
uint32 vp = ReadMacInt32(param + csVPBlockPtr); |
852 |
WriteMacInt32(vp + vpBaseOffset, 0); |
853 |
WriteMacInt16(vp + vpRowBytes, i->bytes_per_row); |
854 |
WriteMacInt16(vp + vpBounds, 0); |
855 |
WriteMacInt16(vp + vpBounds + 2, 0); |
856 |
WriteMacInt16(vp + vpBounds + 4, i->y); |
857 |
WriteMacInt16(vp + vpBounds + 6, i->x); |
858 |
WriteMacInt16(vp + vpVersion, 0); |
859 |
WriteMacInt16(vp + vpPackType, 0); |
860 |
WriteMacInt32(vp + vpPackSize, 0); |
861 |
WriteMacInt32(vp + vpHRes, 0x00480000); // 72 dpi |
862 |
WriteMacInt32(vp + vpVRes, 0x00480000); |
863 |
uint32 pix_type, pix_size, cmp_count, cmp_size, dev_type; |
864 |
switch (i->depth) { |
865 |
case VDEPTH_16BIT: |
866 |
pix_type = 0x10; pix_size = 16; |
867 |
cmp_count = 3; cmp_size = 5; |
868 |
dev_type = 2; // direct |
869 |
break; |
870 |
case VDEPTH_32BIT: |
871 |
pix_type = 0x10; pix_size = 32; |
872 |
cmp_count = 3; cmp_size = 8; |
873 |
dev_type = 2; // direct |
874 |
break; |
875 |
default: |
876 |
pix_type = 0; pix_size = 1 << i->depth; |
877 |
cmp_count = 1; cmp_size = 1 << i->depth; |
878 |
dev_type = 0; // CLUT |
879 |
break; |
880 |
} |
881 |
WriteMacInt16(vp + vpPixelType, pix_type); |
882 |
WriteMacInt16(vp + vpPixelSize, pix_size); |
883 |
WriteMacInt16(vp + vpCmpCount, cmp_count); |
884 |
WriteMacInt16(vp + vpCmpSize, cmp_size); |
885 |
WriteMacInt32(param + csPageCount, 1); |
886 |
WriteMacInt32(param + csDeviceType, dev_type); |
887 |
return noErr; |
888 |
} |
889 |
} |
890 |
return paramErr; // specified resolution/depth not supported |
891 |
} |
892 |
|
893 |
case cscGetMultiConnect: { |
894 |
uint32 conn = ReadMacInt32(param + csDisplayCountOrNumber); |
895 |
D(bug(" GetMultiConnect %08x\n", conn)); |
896 |
if (conn == 0xffffffff) { // Get number of connections |
897 |
WriteMacInt32(param + csDisplayCountOrNumber, 1); // Single-headed |
898 |
return noErr; |
899 |
} else if (conn == 1) { // Get information about first connection |
900 |
WriteMacInt16(param + csConnectInfo + csDisplayType, 8); // Modeless connection |
901 |
WriteMacInt8(param + csConnectInfo + csConnectTaggedType, 0); |
902 |
WriteMacInt8(param + csConnectInfo + csConnectTaggedData, 0); |
903 |
WriteMacInt32(param + csConnectInfo + csConnectFlags, 0x43); // All modes valid and safe, non-standard tagging |
904 |
WriteMacInt32(param + csConnectInfo + csDisplayComponent, 0); |
905 |
return noErr; |
906 |
} else |
907 |
return paramErr; |
908 |
} |
909 |
|
910 |
default: |
911 |
printf("WARNING: Unknown VideoDriverStatus(%d)\n", code); |
912 |
return statusErr; |
913 |
} |
914 |
} |