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/* |
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* video.cpp - Video/graphics emulation |
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* |
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* Basilisk II (C) 1997-2001 Christian Bauer |
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* Portions (C) 1997-1999 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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*/ |
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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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// 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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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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* 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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} |
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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, *green_gamma, *blue_gamma; |
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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); |
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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.current_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 |
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*/ |
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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); |
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|
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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; |
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ROMBaseHost[minor_base + 1] = frame_base >> 16; |
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ROMBaseHost[minor_base + 2] = frame_base >> 8; |
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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); |
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WriteMacInt8(sp + spID, DepthToAppleMode(mode.depth)); |
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r.d[0] = 0x0006; |
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Execute68kTrap(0xa06e, &r); // SFindStruct() |
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WriteMacInt8(sp + spID, 0x01); |
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r.d[0] = 0x0006; |
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Execute68kTrap(0xa06e, &r); // SFindStruct() |
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uint32 p = ReadMacInt32(sp + spPointer) - ROMBaseMac; |
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ROMBaseHost[p + 8] = mode.bytes_per_row >> 8; |
337 |
ROMBaseHost[p + 9] = mode.bytes_per_row; |
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ROMBaseHost[p + 14] = mode.y >> 8; |
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ROMBaseHost[p + 15] = mode.y; |
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ROMBaseHost[p + 16] = mode.x >> 8; |
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ROMBaseHost[p + 17] = mode.x; |
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|
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// Recalculate slot ROM checksum |
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ChecksumSlotROM(); |
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|
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// Update sResource |
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WriteMacInt8(sp + spID, ReadMacInt8(dce + dCtlSlotId)); |
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r.d[0] = 0x002b; |
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Execute68kTrap(0xa06e, &r); // SUpdateSRT() |
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|
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// Update frame buffer base in DCE and param block |
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WriteMacInt32(dce + dCtlDevBase, frame_base); |
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WriteMacInt32(param + csBaseAddr, frame_base); |
354 |
} |
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|
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|
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/* |
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* Driver Open() routine |
359 |
*/ |
360 |
|
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int16 VideoDriverOpen(uint32 pb, uint32 dce) |
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{ |
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D(bug("VideoDriverOpen\n")); |
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|
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// This shouldn't happen unless the platform-specific video code is broken |
366 |
if (VideoModes.empty()) |
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fprintf(stderr, "No valid video modes found (broken video driver?)\n"); |
368 |
|
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// Init local variables |
370 |
VidLocal.desc = &VideoMonitor; |
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VidLocal.luminance_mapping = false; |
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VidLocal.interrupts_enabled = false; |
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VidLocal.current_mode = DepthToAppleMode(VidLocal.desc->mode.depth); |
374 |
VidLocal.current_id = VidLocal.desc->mode.resolution_id; |
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VidLocal.preferred_mode = VidLocal.current_mode; |
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VidLocal.preferred_id = VidLocal.current_id; |
377 |
|
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// Allocate Slot Manager parameter block in Mac RAM |
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M68kRegisters r; |
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r.d[0] = SIZEOF_SPBlock; |
381 |
Execute68kTrap(0xa71e, &r); // NewPtrSysClear() |
382 |
if (r.a[0] == 0) |
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return memFullErr; |
384 |
VidLocal.slot_param = r.a[0]; |
385 |
D(bug("SPBlock at %08x\n", VidLocal.slot_param)); |
386 |
|
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// Find and set default gamma table |
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VidLocal.gamma_table = 0; |
389 |
VidLocal.alloc_gamma_table_size = 0; |
390 |
set_gamma_table(0); |
391 |
|
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// Init color palette (solid gray) |
393 |
set_gray_palette(); |
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return noErr; |
395 |
} |
396 |
|
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|
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/* |
399 |
* Driver Control() routine |
400 |
*/ |
401 |
|
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int16 VideoDriverControl(uint32 pb, uint32 dce) |
403 |
{ |
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uint16 code = ReadMacInt16(pb + csCode); |
405 |
uint32 param = ReadMacInt32(pb + csParam); |
406 |
D(bug("VideoDriverControl %d\n", code)); |
407 |
switch (code) { |
408 |
|
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case cscSetMode: { // Set color depth |
410 |
uint16 mode = ReadMacInt16(param + csMode); |
411 |
D(bug(" SetMode %04x\n", mode)); |
412 |
|
413 |
// Set old base address in case the switch fails |
414 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
415 |
|
416 |
if (ReadMacInt16(param + csPage)) |
417 |
return paramErr; |
418 |
|
419 |
if (mode != VidLocal.current_mode) { |
420 |
vector<video_mode>::const_iterator i = find_mode(mode, VidLocal.current_id); |
421 |
if (i == VideoModes.end()) |
422 |
return paramErr; |
423 |
switch_mode(*i, param, dce); |
424 |
} |
425 |
D(bug(" base %08x\n", VidLocal.desc->mac_frame_base)); |
426 |
return noErr; |
427 |
} |
428 |
|
429 |
case cscSetEntries: // Set palette |
430 |
case cscDirectSetEntries: { |
431 |
D(bug(" (Direct)SetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart))); |
432 |
bool is_direct = IsDirectMode(VidLocal.current_mode); |
433 |
if (code == cscSetEntries && is_direct) |
434 |
return controlErr; |
435 |
if (code == cscDirectSetEntries && !is_direct) |
436 |
return controlErr; |
437 |
|
438 |
uint32 s_pal = ReadMacInt32(param + csTable); // Source palette |
439 |
uint8 *d_pal; // Destination palette |
440 |
uint16 start = ReadMacInt16(param + csStart); |
441 |
uint16 count = ReadMacInt16(param + csCount); |
442 |
if (s_pal == 0 || count > 255) |
443 |
return paramErr; |
444 |
|
445 |
// Find tables for gamma correction |
446 |
uint8 *red_gamma, *green_gamma, *blue_gamma; |
447 |
bool have_gamma = false; |
448 |
int data_width = 0; |
449 |
if (VidLocal.gamma_table) { |
450 |
uint32 table = VidLocal.gamma_table; |
451 |
red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize)); |
452 |
int chan_cnt = ReadMacInt16(table + gChanCnt); |
453 |
if (chan_cnt == 1) |
454 |
green_gamma = blue_gamma = red_gamma; |
455 |
else { |
456 |
int ofs = ReadMacInt16(table + gDataCnt); |
457 |
green_gamma = red_gamma + ofs; |
458 |
blue_gamma = green_gamma + ofs; |
459 |
} |
460 |
data_width = ReadMacInt16(table + gDataWidth); |
461 |
have_gamma = true; |
462 |
} |
463 |
|
464 |
// Convert palette |
465 |
if (start == 0xffff) { // Indexed |
466 |
for (uint32 i=0; i<=count; i++) { |
467 |
d_pal = VidLocal.palette + (ReadMacInt16(s_pal) & 0xff) * 3; |
468 |
uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8; |
469 |
uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8; |
470 |
uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8; |
471 |
if (VidLocal.luminance_mapping && !is_direct) |
472 |
red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16; |
473 |
if (have_gamma) { |
474 |
red = red_gamma[red >> (8 - data_width)]; |
475 |
green = green_gamma[green >> (8 - data_width)]; |
476 |
blue = blue_gamma[blue >> (8 - data_width)]; |
477 |
} |
478 |
*d_pal++ = red; |
479 |
*d_pal++ = green; |
480 |
*d_pal++ = blue; |
481 |
s_pal += 8; |
482 |
} |
483 |
} else { // Sequential |
484 |
if (start + count > 255) |
485 |
return paramErr; |
486 |
d_pal = VidLocal.palette + start * 3; |
487 |
for (uint32 i=0; i<=count; i++) { |
488 |
uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8; |
489 |
uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8; |
490 |
uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8; |
491 |
if (VidLocal.luminance_mapping && !is_direct) |
492 |
red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16; |
493 |
if (have_gamma) { |
494 |
red = red_gamma[red >> (8 - data_width)]; |
495 |
green = green_gamma[green >> (8 - data_width)]; |
496 |
blue = blue_gamma[blue >> (8 - data_width)]; |
497 |
} |
498 |
*d_pal++ = red; |
499 |
*d_pal++ = green; |
500 |
*d_pal++ = blue; |
501 |
s_pal += 8; |
502 |
} |
503 |
} |
504 |
video_set_palette(VidLocal.palette, palette_size(VidLocal.desc->mode.depth)); |
505 |
return noErr; |
506 |
} |
507 |
|
508 |
case cscSetGamma: { // Set gamma table |
509 |
uint32 user_table = ReadMacInt32(param + csGTable); |
510 |
D(bug(" SetGamma %08x\n", user_table)); |
511 |
return set_gamma_table(user_table) ? noErr : memFullErr; |
512 |
} |
513 |
|
514 |
case cscGrayPage: { // Fill page with dithered gray pattern |
515 |
D(bug(" GrayPage %d\n", ReadMacInt16(param + csPage))); |
516 |
if (ReadMacInt16(param + csPage)) |
517 |
return paramErr; |
518 |
|
519 |
uint32 pattern[6] = { |
520 |
0xaaaaaaaa, // 1 bpp |
521 |
0xcccccccc, // 2 bpp |
522 |
0xf0f0f0f0, // 4 bpp |
523 |
0xff00ff00, // 8 bpp |
524 |
0xffff0000, // 16 bpp |
525 |
0xffffffff // 32 bpp |
526 |
}; |
527 |
uint32 p = VidLocal.desc->mac_frame_base; |
528 |
uint32 pat = pattern[VidLocal.desc->mode.depth]; |
529 |
bool invert = (VidLocal.desc->mode.depth == VDEPTH_32BIT); |
530 |
for (uint32 y=0; y<VidLocal.desc->mode.y; y++) { |
531 |
for (uint32 x=0; x<VidLocal.desc->mode.bytes_per_row; x+=4) { |
532 |
WriteMacInt32(p + x, pat); |
533 |
if (invert) |
534 |
pat = ~pat; |
535 |
} |
536 |
p += VidLocal.desc->mode.bytes_per_row; |
537 |
pat = ~pat; |
538 |
} |
539 |
|
540 |
if (IsDirectMode(VidLocal.current_mode)) |
541 |
load_ramp_palette(); |
542 |
|
543 |
return noErr; |
544 |
} |
545 |
|
546 |
case cscSetGray: // Enable/disable luminance mapping |
547 |
D(bug(" SetGray %02x\n", ReadMacInt8(param + csMode))); |
548 |
VidLocal.luminance_mapping = ReadMacInt8(param + csMode); |
549 |
return noErr; |
550 |
|
551 |
case cscSetInterrupt: // Enable/disable VBL |
552 |
D(bug(" SetInterrupt %02x\n", ReadMacInt8(param + csMode))); |
553 |
VidLocal.interrupts_enabled = (ReadMacInt8(param + csMode) == 0); |
554 |
return noErr; |
555 |
|
556 |
case cscSetDefaultMode: { // Set default color depth |
557 |
uint16 mode = ReadMacInt16(param + csMode); |
558 |
D(bug(" SetDefaultMode %04x\n", mode)); |
559 |
VidLocal.preferred_mode = mode; |
560 |
return noErr; |
561 |
} |
562 |
|
563 |
case cscSwitchMode: { // Switch video mode (depth and resolution) |
564 |
uint16 mode = ReadMacInt16(param + csMode); |
565 |
uint32 id = ReadMacInt32(param + csData); |
566 |
D(bug(" SwitchMode %04x, %08x\n", mode, id)); |
567 |
|
568 |
// Set old base address in case the switch fails |
569 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
570 |
|
571 |
if (ReadMacInt16(param + csPage)) |
572 |
return paramErr; |
573 |
|
574 |
if (mode != VidLocal.current_mode || id != VidLocal.current_id) { |
575 |
vector<video_mode>::const_iterator i = find_mode(mode, id); |
576 |
if (i == VideoModes.end()) |
577 |
return paramErr; |
578 |
switch_mode(*i, param, dce); |
579 |
} |
580 |
D(bug(" base %08x\n", VidLocal.desc->mac_frame_base)); |
581 |
return noErr; |
582 |
} |
583 |
|
584 |
case cscSavePreferredConfiguration: { |
585 |
uint16 mode = ReadMacInt16(param + csMode); |
586 |
uint32 id = ReadMacInt32(param + csData); |
587 |
D(bug(" SavePreferredConfiguration %04x, %08x\n", mode, id)); |
588 |
VidLocal.preferred_mode = mode; |
589 |
VidLocal.preferred_id = id; |
590 |
return noErr; |
591 |
} |
592 |
|
593 |
default: |
594 |
printf("WARNING: Unknown VideoDriverControl(%d)\n", code); |
595 |
return controlErr; |
596 |
} |
597 |
} |
598 |
|
599 |
|
600 |
/* |
601 |
* Driver Status() routine |
602 |
*/ |
603 |
|
604 |
int16 VideoDriverStatus(uint32 pb, uint32 dce) |
605 |
{ |
606 |
uint16 code = ReadMacInt16(pb + csCode); |
607 |
uint32 param = ReadMacInt32(pb + csParam); |
608 |
D(bug("VideoDriverStatus %d\n", code)); |
609 |
switch (code) { |
610 |
|
611 |
case cscGetMode: // Get current color depth |
612 |
D(bug(" GetMode -> %04x, base %08x\n", VidLocal.current_mode, VidLocal.desc->mac_frame_base)); |
613 |
WriteMacInt16(param + csMode, VidLocal.current_mode); |
614 |
WriteMacInt16(param + csPage, 0); |
615 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
616 |
return noErr; |
617 |
|
618 |
case cscGetEntries: { // Read palette |
619 |
D(bug(" GetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart))); |
620 |
|
621 |
uint8 *s_pal; // Source palette |
622 |
uint32 d_pal = ReadMacInt32(param + csTable); // Destination palette |
623 |
uint16 start = ReadMacInt16(param + csStart); |
624 |
uint16 count = ReadMacInt16(param + csCount); |
625 |
if (d_pal == 0 || count > 255) |
626 |
return paramErr; |
627 |
|
628 |
if (start == 0xffff) { // Indexed |
629 |
for (uint32 i=0; i<=count; i++) { |
630 |
s_pal = VidLocal.palette + (ReadMacInt16(d_pal) & 0xff) * 3; |
631 |
uint8 red = *s_pal++; |
632 |
uint8 green = *s_pal++; |
633 |
uint8 blue = *s_pal++; |
634 |
WriteMacInt16(d_pal + 2, red * 0x0101); |
635 |
WriteMacInt16(d_pal + 4, green * 0x0101); |
636 |
WriteMacInt16(d_pal + 6, blue * 0x0101); |
637 |
d_pal += 8; |
638 |
} |
639 |
} else { // Sequential |
640 |
if (start + count > 255) |
641 |
return paramErr; |
642 |
s_pal = VidLocal.palette + start * 3; |
643 |
for (uint32 i=0; i<=count; i++) { |
644 |
uint8 red = *s_pal++; |
645 |
uint8 green = *s_pal++; |
646 |
uint8 blue = *s_pal++; |
647 |
WriteMacInt16(d_pal + 2, red * 0x0101); |
648 |
WriteMacInt16(d_pal + 4, green * 0x0101); |
649 |
WriteMacInt16(d_pal + 6, blue * 0x0101); |
650 |
d_pal += 8; |
651 |
} |
652 |
} |
653 |
return noErr; |
654 |
} |
655 |
|
656 |
case cscGetPages: // Get number of pages |
657 |
D(bug(" GetPages -> 1\n")); |
658 |
WriteMacInt16(param + csPage, 1); |
659 |
return noErr; |
660 |
|
661 |
case cscGetBaseAddress: // Get page base address |
662 |
D(bug(" GetBaseAddress -> %08x\n", VidLocal.desc->mac_frame_base)); |
663 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
664 |
if (ReadMacInt16(param + csPage)) |
665 |
return paramErr; |
666 |
else |
667 |
return noErr; |
668 |
|
669 |
case cscGetGray: // Get luminance mapping flag |
670 |
D(bug(" GetGray -> %d\n", VidLocal.luminance_mapping)); |
671 |
WriteMacInt16(param, VidLocal.luminance_mapping ? 0x0100 : 0); |
672 |
return noErr; |
673 |
|
674 |
case cscGetInterrupt: // Get interrupt disable flag |
675 |
D(bug(" GetInterrupt -> %d\n", VidLocal.interrupts_enabled)); |
676 |
WriteMacInt16(param, VidLocal.interrupts_enabled ? 0 : 0x0100); |
677 |
return noErr; |
678 |
|
679 |
case cscGetGamma: |
680 |
D(bug(" GetGamma -> %08x\n", VidLocal.gamma_table)); |
681 |
WriteMacInt32(param + csGTable, VidLocal.gamma_table); |
682 |
return noErr; |
683 |
|
684 |
case cscGetDefaultMode: // Get default color depth |
685 |
D(bug(" GetDefaultMode -> %04x\n", VidLocal.preferred_mode)); |
686 |
WriteMacInt16(param + csMode, VidLocal.preferred_mode); |
687 |
return noErr; |
688 |
|
689 |
case cscGetCurrentMode: // Get current video mode (depth and resolution) |
690 |
D(bug(" GetCurMode -> %04x/%08x, base %08x\n", VidLocal.current_mode, VidLocal.current_id, VidLocal.desc->mac_frame_base)); |
691 |
WriteMacInt16(param + csMode, VidLocal.current_mode); |
692 |
WriteMacInt32(param + csData, VidLocal.current_id); |
693 |
WriteMacInt16(param + csPage, 0); |
694 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
695 |
return noErr; |
696 |
|
697 |
case cscGetConnection: // Get monitor information |
698 |
D(bug(" GetConnection\n")); |
699 |
WriteMacInt16(param + csDisplayType, 8); // Modeless connection |
700 |
WriteMacInt8(param + csConnectTaggedType, 0); |
701 |
WriteMacInt8(param + csConnectTaggedData, 0); |
702 |
WriteMacInt32(param + csConnectFlags, 0x43); // All modes valid and safe, non-standard tagging |
703 |
WriteMacInt32(param + csDisplayComponent, 0); |
704 |
return noErr; |
705 |
|
706 |
case cscGetModeTiming: { // Get video timing for specified resolution |
707 |
uint32 id = ReadMacInt32(param + csTimingMode); |
708 |
D(bug(" GetModeTiming %08x\n", id)); |
709 |
if (!has_resolution(id)) |
710 |
return paramErr; |
711 |
|
712 |
WriteMacInt32(param + csTimingFormat, FOURCC('d', 'e', 'c', 'l')); |
713 |
WriteMacInt32(param + csTimingData, 0); // unknown |
714 |
uint32 flags = 0xb; // mode valid, safe and shown in Monitors panel |
715 |
if (id == VidLocal.preferred_id) |
716 |
flags |= 4; // default mode |
717 |
WriteMacInt32(param + csTimingFlags, flags); |
718 |
return noErr; |
719 |
} |
720 |
|
721 |
case cscGetModeBaseAddress: // Get frame buffer base address |
722 |
D(bug(" GetModeBaseAddress -> base %08x\n", VidLocal.desc->mac_frame_base)); |
723 |
WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base); |
724 |
return noErr; |
725 |
|
726 |
case cscGetPreferredConfiguration: // Get default video mode (depth and resolution) |
727 |
D(bug(" GetPreferredConfiguration -> %04x/%08x\n", VidLocal.preferred_mode, VidLocal.preferred_id)); |
728 |
WriteMacInt16(param + csMode, VidLocal.preferred_mode); |
729 |
WriteMacInt32(param + csData, VidLocal.preferred_id); |
730 |
return noErr; |
731 |
|
732 |
case cscGetNextResolution: { // Called iteratively to obtain a list of all supported resolutions |
733 |
uint32 id = ReadMacInt32(param + csPreviousDisplayModeID); |
734 |
D(bug(" GetNextResolution %08x\n", id)); |
735 |
|
736 |
switch (id) { |
737 |
case 0: |
738 |
// Return current resolution |
739 |
id = VidLocal.current_id; |
740 |
break; |
741 |
|
742 |
case 0xfffffffe: |
743 |
// Return first supported resolution |
744 |
id = 0x80; |
745 |
while (!has_resolution(id)) |
746 |
id++; |
747 |
break; |
748 |
|
749 |
default: |
750 |
// Get next resolution |
751 |
if (!has_resolution(id)) |
752 |
return paramErr; |
753 |
id++; |
754 |
while (!has_resolution(id) && id < 0x100) |
755 |
id++; |
756 |
if (id == 0x100) { // No more resolutions |
757 |
WriteMacInt32(param + csRIDisplayModeID, 0xfffffffd); |
758 |
return noErr; |
759 |
} |
760 |
break; |
761 |
} |
762 |
|
763 |
WriteMacInt32(param + csRIDisplayModeID, id); |
764 |
uint32 x, y; |
765 |
get_size_of_resolution(id, x, y); |
766 |
WriteMacInt32(param + csHorizontalPixels, x); |
767 |
WriteMacInt32(param + csVerticalLines, y); |
768 |
WriteMacInt32(param + csRefreshRate, 75 << 16); |
769 |
WriteMacInt16(param + csMaxDepthMode, DepthToAppleMode(max_depth_of_resolution(id))); |
770 |
return noErr; |
771 |
} |
772 |
|
773 |
case cscGetVideoParameters: { // Get information about specified resolution/depth |
774 |
uint32 id = ReadMacInt32(param + csDisplayModeID); |
775 |
uint16 mode = ReadMacInt16(param + csDepthMode); |
776 |
D(bug(" GetVideoParameters %04x/%08x\n", mode, id)); |
777 |
|
778 |
vector<video_mode>::const_iterator i, end = VideoModes.end(); |
779 |
for (i = VideoModes.begin(); i != end; ++i) { |
780 |
if (DepthToAppleMode(i->depth) == mode && i->resolution_id == id) { |
781 |
uint32 vp = ReadMacInt32(param + csVPBlockPtr); |
782 |
WriteMacInt32(vp + vpBaseOffset, 0); |
783 |
WriteMacInt16(vp + vpRowBytes, i->bytes_per_row); |
784 |
WriteMacInt16(vp + vpBounds, 0); |
785 |
WriteMacInt16(vp + vpBounds + 2, 0); |
786 |
WriteMacInt16(vp + vpBounds + 4, i->y); |
787 |
WriteMacInt16(vp + vpBounds + 6, i->x); |
788 |
WriteMacInt16(vp + vpVersion, 0); |
789 |
WriteMacInt16(vp + vpPackType, 0); |
790 |
WriteMacInt32(vp + vpPackSize, 0); |
791 |
WriteMacInt32(vp + vpHRes, 0x00480000); // 72 dpi |
792 |
WriteMacInt32(vp + vpVRes, 0x00480000); |
793 |
uint32 pix_type, pix_size, cmp_count, cmp_size, dev_type; |
794 |
switch (i->depth) { |
795 |
case VDEPTH_1BIT: |
796 |
pix_type = 0; pix_size = 1; |
797 |
cmp_count = 1; cmp_size = 1; |
798 |
dev_type = 0; // CLUT |
799 |
break; |
800 |
case VDEPTH_2BIT: |
801 |
pix_type = 0; pix_size = 2; |
802 |
cmp_count = 1; cmp_size = 2; |
803 |
dev_type = 0; // CLUT |
804 |
break; |
805 |
case VDEPTH_4BIT: |
806 |
pix_type = 0; pix_size = 4; |
807 |
cmp_count = 1; cmp_size = 4; |
808 |
dev_type = 0; // CLUT |
809 |
break; |
810 |
case VDEPTH_8BIT: |
811 |
pix_type = 0; pix_size = 8; |
812 |
cmp_count = 1; cmp_size = 8; |
813 |
dev_type = 0; // CLUT |
814 |
break; |
815 |
case VDEPTH_16BIT: |
816 |
pix_type = 0x10; pix_size = 16; |
817 |
cmp_count = 3; cmp_size = 5; |
818 |
dev_type = 2; // direct |
819 |
break; |
820 |
case VDEPTH_32BIT: |
821 |
pix_type = 0x10; pix_size = 32; |
822 |
cmp_count = 3; cmp_size = 8; |
823 |
dev_type = 2; // direct |
824 |
break; |
825 |
} |
826 |
WriteMacInt16(vp + vpPixelType, pix_type); |
827 |
WriteMacInt16(vp + vpPixelSize, pix_size); |
828 |
WriteMacInt16(vp + vpCmpCount, cmp_count); |
829 |
WriteMacInt16(vp + vpCmpSize, cmp_size); |
830 |
WriteMacInt32(param + csPageCount, 1); |
831 |
WriteMacInt32(param + csDeviceType, dev_type); |
832 |
return noErr; |
833 |
} |
834 |
} |
835 |
return paramErr; // specified resolution/depth not supported |
836 |
} |
837 |
|
838 |
default: |
839 |
printf("WARNING: Unknown VideoDriverStatus(%d)\n", code); |
840 |
return statusErr; |
841 |
} |
842 |
} |