| /* |
| * video.cpp - Video/graphics emulation |
| * |
| * Basilisk II (C) 1997-2008 Christian Bauer |
| * Portions written by Marc Hellwig |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* |
| * SEE ALSO |
| * Inside Macintosh: Devices, chapter 1 "Device Manager" |
| * Designing Cards and Drivers for the Macintosh Family, Second Edition |
| * Designing PCI Cards and Drivers for Power Macintosh Computers |
| * Display Device Driver Guide |
| */ |
| |
| #include <stdio.h> |
| |
| #include "sysdeps.h" |
| #include "cpu_emulation.h" |
| #include "main.h" |
| #include "macos_util.h" |
| #include "slot_rom.h" |
| #include "video.h" |
| #include "video_defs.h" |
| |
| #define DEBUG 0 |
| #include "debug.h" |
| |
| |
| // Next available NuBus slot ID |
| uint8 monitor_desc::next_slot_id = 0x80; |
| |
| // Vector of pointers to available monitor descriptions, filled by VideoInit() |
| vector<monitor_desc *> VideoMonitors; |
| |
| |
| /* |
| * Converts a video_depth to a C-String name ("VDEPTH_1BIT", "VDEPTH_2BIT", etc.) |
| */ |
| const char * NameOfDepth(video_depth depth) |
| { |
| switch (depth) { |
| case VDEPTH_1BIT: return "VDEPTH_1BIT"; |
| case VDEPTH_2BIT: return "VDEPTH_2BIT"; |
| case VDEPTH_4BIT: return "VDEPTH_4BIT"; |
| case VDEPTH_8BIT: return "VDEPTH_8BIT"; |
| case VDEPTH_16BIT: return "VDEPTH_16BIT"; |
| case VDEPTH_32BIT: return "VDEPTH_32BIT"; |
| } |
| return ""; |
| } |
| |
| |
| /* |
| * Find palette size for given color depth |
| */ |
| |
| static int palette_size(video_depth depth) |
| { |
| switch (depth) { |
| case VDEPTH_1BIT: return 2; |
| case VDEPTH_2BIT: return 4; |
| case VDEPTH_4BIT: return 16; |
| case VDEPTH_8BIT: return 256; |
| case VDEPTH_16BIT: return 32; |
| case VDEPTH_32BIT: return 256; |
| default: return 0; |
| } |
| } |
| |
| |
| /* |
| * Find pointer to monitor_desc for given slot ID (or NULL if not found) |
| */ |
| |
| static monitor_desc *find_monitor(uint8 id) |
| { |
| vector<monitor_desc *>::const_iterator i, end = VideoMonitors.end(); |
| for (i = VideoMonitors.begin(); i != end; ++i) { |
| if ((*i)->get_slot_id() == id) |
| return *i; |
| } |
| return NULL; |
| } |
| |
| |
| /* |
| * monitor_desc constructor |
| */ |
| |
| monitor_desc::monitor_desc(const vector<video_mode> &available_modes, video_depth default_depth, uint32 default_id) : modes(available_modes) |
| { |
| // Assign the next slot ID on construction |
| slot_id = next_slot_id++; |
| |
| // Initialize Apple mode list |
| uint16 mode = 0x80; |
| for (int depth = VDEPTH_1BIT; depth <= VDEPTH_32BIT; depth++) { |
| if (has_depth(video_depth(depth))) |
| apple_mode_for_depth[depth] = mode++; |
| else |
| apple_mode_for_depth[depth] = 0; |
| } |
| |
| // Set default mode |
| current_mode = find_mode(depth_to_apple_mode(default_depth), default_id); |
| } |
| |
| |
| /* |
| * Get bytes-per-row value for specified resolution/depth |
| * (if the mode isn't supported, make a good guess) |
| */ |
| |
| uint32 monitor_desc::get_bytes_per_row(video_depth depth, uint32 id) const |
| { |
| vector<video_mode>::const_iterator i, end = modes.end(); |
| for (i = modes.begin(); i != end; ++i) { |
| if (i->depth == depth && i->resolution_id == id) |
| return i->bytes_per_row; |
| } |
| uint32 x, y; |
| get_size_of_resolution(id, x, y); |
| return TrivialBytesPerRow(x, depth); |
| } |
| |
| |
| /* |
| * Check whether a mode with the specified depth exists on this display |
| */ |
| |
| bool monitor_desc::has_depth(video_depth depth) const |
| { |
| vector<video_mode>::const_iterator i = modes.begin(), end = modes.end(); |
| while (i != end) { |
| if (i->depth == depth) |
| return true; |
| ++i; |
| } |
| return false; |
| } |
| |
| |
| /* |
| * Check whether the specified resolution ID is one of the supported resolutions |
| */ |
| |
| bool monitor_desc::has_resolution(uint32 id) const |
| { |
| vector<video_mode>::const_iterator i, end = modes.end(); |
| for (i = modes.begin(); i != end; ++i) { |
| if (i->resolution_id == id) |
| return true; |
| } |
| return false; |
| } |
| |
| |
| /* |
| * Find specified mode (depth/resolution) (or invalid_mode() if not found) |
| */ |
| |
| vector<video_mode>::const_iterator monitor_desc::find_mode(uint16 apple_mode, uint32 id) const |
| { |
| vector<video_mode>::const_iterator i, end = modes.end(); |
| for (i = modes.begin(); i != end; ++i) { |
| if (i->resolution_id == id && depth_to_apple_mode(i->depth) == apple_mode) |
| return i; |
| } |
| return i; |
| } |
| |
| |
| /* |
| * Find maximum supported depth for given resolution ID |
| */ |
| |
| video_depth monitor_desc::max_depth_of_resolution(uint32 id) const |
| { |
| video_depth m = VDEPTH_1BIT; |
| vector<video_mode>::const_iterator i, end = modes.end(); |
| for (i = modes.begin(); i != end; ++i) { |
| if (i->depth > m) |
| m = i->depth; |
| } |
| return m; |
| } |
| |
| |
| /* |
| * Get X/Y size of specified resolution |
| */ |
| |
| void monitor_desc::get_size_of_resolution(uint32 id, uint32 &x, uint32 &y) const |
| { |
| vector<video_mode>::const_iterator i, end = modes.end(); |
| for (i = modes.begin(); i != end; ++i) { |
| if (i->resolution_id == id) { |
| x = i->x; |
| y = i->y; |
| return; |
| } |
| } |
| x = y = 0; |
| } |
| |
| |
| /* |
| * Set palette to 50% gray |
| */ |
| |
| void monitor_desc::set_gray_palette(void) |
| { |
| for (int i=0; i<256; i++) { |
| palette[i * 3 + 0] = 127; |
| palette[i * 3 + 1] = 127; |
| palette[i * 3 + 2] = 127; |
| } |
| set_palette(palette, 256); |
| } |
| |
| |
| /* |
| * Load gamma-corrected black-to-white ramp to palette for direct-color mode |
| */ |
| |
| void monitor_desc::load_ramp_palette(void) |
| { |
| // Find tables for gamma correction |
| uint8 *red_gamma = NULL, *green_gamma = NULL, *blue_gamma = NULL; |
| bool have_gamma = false; |
| int data_width = 0; |
| if (gamma_table) { |
| uint32 table = gamma_table; |
| red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize)); |
| int chan_cnt = ReadMacInt16(table + gChanCnt); |
| if (chan_cnt == 1) |
| green_gamma = blue_gamma = red_gamma; |
| else { |
| int ofs = ReadMacInt16(table + gDataCnt); |
| green_gamma = red_gamma + ofs; |
| blue_gamma = green_gamma + ofs; |
| } |
| data_width = ReadMacInt16(table + gDataWidth); |
| have_gamma = true; |
| } |
| |
| int num = (current_mode->depth == VDEPTH_16BIT ? 32 : 256); |
| uint8 *p = palette; |
| for (int i=0; i<num; i++) { |
| uint8 red = (i * 256 / num), green = red, blue = red; |
| if (have_gamma) { |
| red = red_gamma[red >> (8 - data_width)]; |
| green = green_gamma[green >> (8 - data_width)]; |
| blue = blue_gamma[blue >> (8 - data_width)]; |
| } |
| *p++ = red; |
| *p++ = green; |
| *p++ = blue; |
| } |
| |
| set_palette(palette, num); |
| } |
| |
| |
| /* |
| * Allocate gamma table of specified size |
| */ |
| |
| bool monitor_desc::allocate_gamma_table(int size) |
| { |
| M68kRegisters r; |
| |
| if (size > alloc_gamma_table_size) { |
| if (gamma_table) { |
| r.a[0] = gamma_table; |
| Execute68kTrap(0xa01f, &r); // DisposePtr() |
| gamma_table = 0; |
| alloc_gamma_table_size = 0; |
| } |
| r.d[0] = size; |
| Execute68kTrap(0xa71e, &r); // NewPtrSysClear() |
| if (r.a[0] == 0) |
| return false; |
| gamma_table = r.a[0]; |
| alloc_gamma_table_size = size; |
| } |
| return true; |
| } |
| |
| |
| /* |
| * Set gamma table (0 = build linear ramp) |
| */ |
| |
| int16 monitor_desc::set_gamma_table(uint32 user_table) |
| { |
| if (user_table == 0) { // Build linear ramp, 256 entries |
| |
| // Allocate new table, if necessary |
| if (!allocate_gamma_table(SIZEOF_GammaTbl + 256)) |
| return memFullErr; |
| |
| // Initialize header |
| WriteMacInt16(gamma_table + gVersion, 0); |
| WriteMacInt16(gamma_table + gType, 0); |
| WriteMacInt16(gamma_table + gFormulaSize, 0); |
| WriteMacInt16(gamma_table + gChanCnt, 1); |
| WriteMacInt16(gamma_table + gDataCnt, 256); |
| WriteMacInt16(gamma_table + gDataWidth, 8); |
| |
| // Build ramp |
| uint32 p = gamma_table + gFormulaData; |
| for (int i=0; i<256; i++) |
| WriteMacInt8(p + i, i); |
| |
| } else { // User-supplied gamma table |
| |
| // Validate header |
| if (ReadMacInt16(user_table + gVersion)) |
| return paramErr; |
| if (ReadMacInt16(user_table + gType)) |
| return paramErr; |
| int chan_cnt = ReadMacInt16(user_table + gChanCnt); |
| if (chan_cnt != 1 && chan_cnt != 3) |
| return paramErr; |
| int data_width = ReadMacInt16(user_table + gDataWidth); |
| if (data_width > 8) |
| return paramErr; |
| int data_cnt = ReadMacInt16(user_table + gDataCnt); |
| if (data_cnt != (1 << data_width)) |
| return paramErr; |
| |
| // Allocate new table, if necessary |
| int size = SIZEOF_GammaTbl + ReadMacInt16(user_table + gFormulaSize) + chan_cnt * data_cnt; |
| if (!allocate_gamma_table(size)) |
| return memFullErr; |
| |
| // Copy table |
| Mac2Mac_memcpy(gamma_table, user_table, size); |
| } |
| |
| if (IsDirectMode(*current_mode)) |
| load_ramp_palette(); |
| |
| return noErr; |
| } |
| |
| |
| /* |
| * Switch video mode |
| */ |
| |
| void monitor_desc::switch_mode(vector<video_mode>::const_iterator it, uint32 param, uint32 dce) |
| { |
| const video_mode &mode = *it; |
| |
| // Switch mode |
| set_gray_palette(); |
| current_mode = it; |
| switch_to_current_mode(); |
| |
| // Update variables |
| current_apple_mode = depth_to_apple_mode(mode.depth); |
| current_id = mode.resolution_id; |
| |
| M68kRegisters r; |
| r.a[0] = slot_param; |
| |
| // Find functional sResource for this display |
| WriteMacInt8(slot_param + spSlot, ReadMacInt8(dce + dCtlSlot)); |
| WriteMacInt8(slot_param + spID, ReadMacInt8(dce + dCtlSlotId)); |
| WriteMacInt8(slot_param + spExtDev, 0); |
| r.d[0] = 0x0016; |
| Execute68kTrap(0xa06e, &r); // SRsrcInfo() |
| uint32 rsrc = ReadMacInt32(slot_param + spPointer); |
| |
| // Patch minorBase (otherwise rebooting won't work) |
| WriteMacInt8(slot_param + spID, 0x0a); // minorBase |
| r.d[0] = 0x0006; |
| Execute68kTrap(0xa06e, &r); // SFindStruct() |
| uint32 minor_base = ReadMacInt32(slot_param + spPointer) - ROMBaseMac; |
| ROMBaseHost[minor_base + 0] = mac_frame_base >> 24; |
| ROMBaseHost[minor_base + 1] = mac_frame_base >> 16; |
| ROMBaseHost[minor_base + 2] = mac_frame_base >> 8; |
| ROMBaseHost[minor_base + 3] = mac_frame_base; |
| |
| // Patch video mode parameter table |
| WriteMacInt32(slot_param + spPointer, rsrc); |
| WriteMacInt8(slot_param + spID, depth_to_apple_mode(mode.depth)); |
| r.d[0] = 0x0006; |
| Execute68kTrap(0xa06e, &r); // SFindStruct() |
| WriteMacInt8(slot_param + spID, 0x01); |
| r.d[0] = 0x0006; |
| Execute68kTrap(0xa06e, &r); // SFindStruct() |
| uint32 p = ReadMacInt32(slot_param + spPointer) - ROMBaseMac; |
| ROMBaseHost[p + 8] = mode.bytes_per_row >> 8; |
| ROMBaseHost[p + 9] = mode.bytes_per_row; |
| ROMBaseHost[p + 14] = mode.y >> 8; |
| ROMBaseHost[p + 15] = mode.y; |
| ROMBaseHost[p + 16] = mode.x >> 8; |
| ROMBaseHost[p + 17] = mode.x; |
| |
| // Recalculate slot ROM checksum |
| ChecksumSlotROM(); |
| |
| // Update sResource |
| WriteMacInt8(slot_param + spID, ReadMacInt8(dce + dCtlSlotId)); |
| r.d[0] = 0x002b; |
| Execute68kTrap(0xa06e, &r); // SUpdateSRT() |
| |
| // Update frame buffer base in DCE and param block |
| WriteMacInt32(dce + dCtlDevBase, mac_frame_base); |
| WriteMacInt32(param + csBaseAddr, mac_frame_base); |
| |
| // Patch frame buffer base address for MacOS versions <7.6 |
| if (!dm_present) { // Only do this when no Display Manager seems to be present; otherwise, the screen will not get redrawn |
| D(bug("No Display Manager, patching frame buffer base\n")); |
| WriteMacInt32(0x824, mac_frame_base); // ScrnBase |
| WriteMacInt32(0x898, mac_frame_base); // CrsrBase |
| uint32 gdev = ReadMacInt32(0x8a4); // MainDevice |
| D(bug("MainDevice handle at %08lx\n", gdev)); |
| if (gdev != 0 && gdev != 0xffffffff) { |
| gdev = ReadMacInt32(gdev); |
| D(bug(" pointer at %08lx\n", gdev)); |
| uint32 pmap = ReadMacInt32(gdev + 0x16); // gdPMap |
| D(bug(" PixMap handle at %08lx\n", pmap)); |
| pmap = ReadMacInt32(pmap); |
| D(bug(" pointer at %08lx\n", pmap)); |
| WriteMacInt32(pmap, mac_frame_base); // baseAddr |
| } |
| gdev = ReadMacInt32(0xcc8); // TheGDevice |
| D(bug("TheGDevice handle at %08lx\n", gdev)); |
| } |
| } |
| |
| |
| /* |
| * Driver Open() routine |
| */ |
| |
| int16 monitor_desc::driver_open(void) |
| { |
| // This shouldn't happen unless the platform-specific video code is broken |
| if (modes.empty()) |
| fprintf(stderr, "No valid video modes found (broken video driver?)\n"); |
| |
| // Init local variables |
| luminance_mapping = false; |
| interrupts_enabled = false; |
| current_apple_mode = preferred_apple_mode = depth_to_apple_mode(current_mode->depth); |
| current_id = preferred_id = current_mode->resolution_id; |
| dm_present = false; |
| |
| // Allocate Slot Manager parameter block in Mac RAM |
| M68kRegisters r; |
| r.d[0] = SIZEOF_SPBlock; |
| Execute68kTrap(0xa71e, &r); // NewPtrSysClear() |
| if (r.a[0] == 0) |
| return memFullErr; |
| slot_param = r.a[0]; |
| D(bug("SPBlock at %08x\n", slot_param)); |
| |
| // Find and set default gamma table |
| gamma_table = 0; |
| alloc_gamma_table_size = 0; |
| set_gamma_table(0); |
| |
| // Init color palette (solid gray) |
| set_gray_palette(); |
| return noErr; |
| } |
| |
| int16 VideoDriverOpen(uint32 pb, uint32 dce) |
| { |
| uint8 slot_id = ReadMacInt8(dce + dCtlSlotId); |
| D(bug("VideoDriverOpen slot %02x\n", slot_id)); |
| |
| monitor_desc *m = find_monitor(slot_id); |
| if (m) |
| return m->driver_open(); |
| else |
| return nsDrvErr; |
| } |
| |
| |
| /* |
| * Driver Control() routine |
| */ |
| |
| int16 monitor_desc::driver_control(uint16 code, uint32 param, uint32 dce) |
| { |
| switch (code) { |
| |
| case cscSetMode: { // Set color depth |
| uint16 mode = ReadMacInt16(param + csMode); |
| D(bug(" SetMode %04x\n", mode)); |
| |
| // Set old base address in case the switch fails |
| WriteMacInt32(param + csBaseAddr, mac_frame_base); |
| |
| if (ReadMacInt16(param + csPage)) |
| return paramErr; |
| |
| if (mode != current_apple_mode) { |
| vector<video_mode>::const_iterator i = find_mode(mode, current_id); |
| if (i == invalid_mode()) |
| return paramErr; |
| switch_mode(i, param, dce); |
| } |
| D(bug(" base %08x\n", mac_frame_base)); |
| return noErr; |
| } |
| |
| case cscSetEntries: // Set palette |
| case cscDirectSetEntries: { |
| D(bug(" (Direct)SetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart))); |
| bool is_direct = IsDirectMode(*current_mode); |
| if (code == cscSetEntries && is_direct) |
| return controlErr; |
| if (code == cscDirectSetEntries && !is_direct) |
| return controlErr; |
| |
| uint32 s_pal = ReadMacInt32(param + csTable); // Source palette |
| uint8 *d_pal; // Destination palette |
| uint16 start = ReadMacInt16(param + csStart); |
| uint16 count = ReadMacInt16(param + csCount); |
| if (s_pal == 0 || count > 255) |
| return paramErr; |
| |
| // Find tables for gamma correction |
| uint8 *red_gamma = NULL, *green_gamma = NULL, *blue_gamma = NULL; |
| bool have_gamma = false; |
| int data_width = 0; |
| if (gamma_table) { |
| red_gamma = Mac2HostAddr(gamma_table + gFormulaData + ReadMacInt16(gamma_table + gFormulaSize)); |
| int chan_cnt = ReadMacInt16(gamma_table + gChanCnt); |
| if (chan_cnt == 1) |
| green_gamma = blue_gamma = red_gamma; |
| else { |
| int ofs = ReadMacInt16(gamma_table + gDataCnt); |
| green_gamma = red_gamma + ofs; |
| blue_gamma = green_gamma + ofs; |
| } |
| data_width = ReadMacInt16(gamma_table + gDataWidth); |
| have_gamma = true; |
| } |
| |
| // Convert palette |
| if (start == 0xffff) { // Indexed |
| for (uint32 i=0; i<=count; i++) { |
| d_pal = palette + (ReadMacInt16(s_pal) & 0xff) * 3; |
| uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8; |
| uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8; |
| uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8; |
| if (luminance_mapping && !is_direct) |
| red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16; |
| if (have_gamma) { |
| red = red_gamma[red >> (8 - data_width)]; |
| green = green_gamma[green >> (8 - data_width)]; |
| blue = blue_gamma[blue >> (8 - data_width)]; |
| } |
| *d_pal++ = red; |
| *d_pal++ = green; |
| *d_pal++ = blue; |
| s_pal += 8; |
| } |
| } else { // Sequential |
| if (start + count > 255) |
| return paramErr; |
| d_pal = palette + start * 3; |
| for (uint32 i=0; i<=count; i++) { |
| uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8; |
| uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8; |
| uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8; |
| if (luminance_mapping && !is_direct) |
| red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16; |
| if (have_gamma) { |
| red = red_gamma[red >> (8 - data_width)]; |
| green = green_gamma[green >> (8 - data_width)]; |
| blue = blue_gamma[blue >> (8 - data_width)]; |
| } |
| *d_pal++ = red; |
| *d_pal++ = green; |
| *d_pal++ = blue; |
| s_pal += 8; |
| } |
| } |
| set_palette(palette, palette_size(current_mode->depth)); |
| return noErr; |
| } |
| |
| case cscSetGamma: { // Set gamma table |
| uint32 user_table = ReadMacInt32(param + csGTable); |
| D(bug(" SetGamma %08x\n", user_table)); |
| return set_gamma_table(user_table); |
| } |
| |
| case cscGrayPage: { // Fill page with dithered gray pattern |
| D(bug(" GrayPage %d\n", ReadMacInt16(param + csPage))); |
| if (ReadMacInt16(param + csPage)) |
| return paramErr; |
| |
| uint32 pattern[6] = { |
| 0xaaaaaaaa, // 1 bpp |
| 0xcccccccc, // 2 bpp |
| 0xf0f0f0f0, // 4 bpp |
| 0xff00ff00, // 8 bpp |
| 0xffff0000, // 16 bpp |
| 0xffffffff // 32 bpp |
| }; |
| uint32 p = mac_frame_base; |
| uint32 pat = pattern[current_mode->depth]; |
| bool invert = (current_mode->depth == VDEPTH_32BIT); |
| for (uint32 y=0; y<current_mode->y; y++) { |
| for (uint32 x=0; x<current_mode->bytes_per_row; x+=4) { |
| WriteMacInt32(p + x, pat); |
| if (invert) |
| pat = ~pat; |
| } |
| p += current_mode->bytes_per_row; |
| pat = ~pat; |
| } |
| |
| if (IsDirectMode(*current_mode)) |
| load_ramp_palette(); |
| |
| return noErr; |
| } |
| |
| case cscSetGray: // Enable/disable luminance mapping |
| D(bug(" SetGray %02x\n", ReadMacInt8(param + csMode))); |
| luminance_mapping = ReadMacInt8(param + csMode) != 0; |
| return noErr; |
| |
| case cscSetInterrupt: // Enable/disable VBL |
| D(bug(" SetInterrupt %02x\n", ReadMacInt8(param + csMode))); |
| interrupts_enabled = (ReadMacInt8(param + csMode) == 0); |
| return noErr; |
| |
| case cscSetDefaultMode: { // Set default color depth |
| uint16 mode = ReadMacInt8(param + csMode); |
| D(bug(" SetDefaultMode %02x\n", mode)); |
| preferred_apple_mode = mode; |
| return noErr; |
| } |
| |
| case cscSwitchMode: { // Switch video mode (depth and resolution) |
| uint16 mode = ReadMacInt16(param + csMode); |
| uint32 id = ReadMacInt32(param + csData); |
| D(bug(" SwitchMode %04x, %08x\n", mode, id)); |
| |
| // Set old base address in case the switch fails |
| WriteMacInt32(param + csBaseAddr, mac_frame_base); |
| |
| if (ReadMacInt16(param + csPage)) |
| return paramErr; |
| |
| if (mode != current_apple_mode || id != current_id) { |
| vector<video_mode>::const_iterator i = find_mode(mode, id); |
| if (i == invalid_mode()) |
| return paramErr; |
| switch_mode(i, param, dce); |
| } |
| D(bug(" base %08x\n", mac_frame_base)); |
| return noErr; |
| } |
| |
| case cscSavePreferredConfiguration: { |
| uint16 mode = ReadMacInt16(param + csMode); |
| uint32 id = ReadMacInt32(param + csData); |
| D(bug(" SavePreferredConfiguration %04x, %08x\n", mode, id)); |
| preferred_apple_mode = mode; |
| preferred_id = id; |
| return noErr; |
| } |
| |
| default: |
| printf("WARNING: Unknown VideoDriverControl(%d)\n", code); |
| return controlErr; |
| } |
| } |
| |
| int16 VideoDriverControl(uint32 pb, uint32 dce) |
| { |
| uint8 slot_id = ReadMacInt8(dce + dCtlSlotId); |
| uint16 code = ReadMacInt16(pb + csCode); |
| uint32 param = ReadMacInt32(pb + csParam); |
| D(bug("VideoDriverControl slot %02x, code %d\n", slot_id, code)); |
| |
| monitor_desc *m = find_monitor(slot_id); |
| if (m) |
| return m->driver_control(code, param, dce); |
| else |
| return nsDrvErr; |
| } |
| |
| |
| /* |
| * Driver Status() routine |
| */ |
| |
| int16 monitor_desc::driver_status(uint16 code, uint32 param) |
| { |
| switch (code) { |
| |
| case cscGetMode: // Get current color depth |
| D(bug(" GetMode -> %04x, base %08x\n", current_apple_mode, mac_frame_base)); |
| WriteMacInt16(param + csMode, current_apple_mode); |
| WriteMacInt16(param + csPage, 0); |
| WriteMacInt32(param + csBaseAddr, mac_frame_base); |
| return noErr; |
| |
| case cscGetEntries: { // Read palette |
| D(bug(" GetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart))); |
| |
| uint8 *s_pal; // Source palette |
| uint32 d_pal = ReadMacInt32(param + csTable); // Destination palette |
| uint16 start = ReadMacInt16(param + csStart); |
| uint16 count = ReadMacInt16(param + csCount); |
| if (d_pal == 0 || count > 255) |
| return paramErr; |
| |
| if (start == 0xffff) { // Indexed |
| for (uint32 i=0; i<=count; i++) { |
| s_pal = palette + (ReadMacInt16(d_pal) & 0xff) * 3; |
| uint8 red = *s_pal++; |
| uint8 green = *s_pal++; |
| uint8 blue = *s_pal++; |
| WriteMacInt16(d_pal + 2, red * 0x0101); |
| WriteMacInt16(d_pal + 4, green * 0x0101); |
| WriteMacInt16(d_pal + 6, blue * 0x0101); |
| d_pal += 8; |
| } |
| } else { // Sequential |
| if (start + count > 255) |
| return paramErr; |
| s_pal = palette + start * 3; |
| for (uint32 i=0; i<=count; i++) { |
| uint8 red = *s_pal++; |
| uint8 green = *s_pal++; |
| uint8 blue = *s_pal++; |
| WriteMacInt16(d_pal + 2, red * 0x0101); |
| WriteMacInt16(d_pal + 4, green * 0x0101); |
| WriteMacInt16(d_pal + 6, blue * 0x0101); |
| d_pal += 8; |
| } |
| } |
| return noErr; |
| } |
| |
| case cscGetPages: // Get number of pages |
| D(bug(" GetPages -> 1\n")); |
| WriteMacInt16(param + csPage, 1); |
| return noErr; |
| |
| case cscGetBaseAddress: // Get page base address |
| D(bug(" GetBaseAddress -> %08x\n", mac_frame_base)); |
| WriteMacInt32(param + csBaseAddr, mac_frame_base); |
| if (ReadMacInt16(param + csPage)) |
| return paramErr; |
| else |
| return noErr; |
| |
| case cscGetGray: // Get luminance mapping flag |
| D(bug(" GetGray -> %d\n", luminance_mapping)); |
| WriteMacInt8(param, luminance_mapping ? 1 : 0); |
| return noErr; |
| |
| case cscGetInterrupt: // Get interrupt disable flag |
| D(bug(" GetInterrupt -> %d\n", interrupts_enabled)); |
| WriteMacInt8(param, interrupts_enabled ? 0 : 1); |
| return noErr; |
| |
| case cscGetGamma: |
| D(bug(" GetGamma -> %08x\n", gamma_table)); |
| WriteMacInt32(param + csGTable, gamma_table); |
| return noErr; |
| |
| case cscGetDefaultMode: // Get default color depth |
| D(bug(" GetDefaultMode -> %02x\n", preferred_apple_mode)); |
| WriteMacInt8(param + csMode, preferred_apple_mode); |
| return noErr; |
| |
| case cscGetCurrentMode: // Get current video mode (depth and resolution) |
| D(bug(" GetCurMode -> %04x/%08x, base %08x\n", current_apple_mode, current_id, mac_frame_base)); |
| WriteMacInt16(param + csMode, current_apple_mode); |
| WriteMacInt32(param + csData, current_id); |
| WriteMacInt16(param + csPage, 0); |
| WriteMacInt32(param + csBaseAddr, mac_frame_base); |
| return noErr; |
| |
| case cscGetConnection: // Get monitor information |
| D(bug(" GetConnection\n")); |
| WriteMacInt16(param + csDisplayType, 8); // Modeless connection |
| WriteMacInt8(param + csConnectTaggedType, 0); |
| WriteMacInt8(param + csConnectTaggedData, 0); |
| WriteMacInt32(param + csConnectFlags, 0x43); // All modes valid and safe, non-standard tagging |
| WriteMacInt32(param + csDisplayComponent, 0); |
| return noErr; |
| |
| case cscGetModeTiming: { // Get video timing for specified resolution |
| uint32 id = ReadMacInt32(param + csTimingMode); |
| D(bug(" GetModeTiming %08x\n", id)); |
| if (!has_resolution(id)) |
| return paramErr; |
| |
| WriteMacInt32(param + csTimingFormat, FOURCC('d', 'e', 'c', 'l')); |
| WriteMacInt32(param + csTimingData, 0); // unknown |
| uint32 flags = 0xb; // mode valid, safe and shown in Monitors panel |
| if (id == preferred_id) |
| flags |= 4; // default mode |
| WriteMacInt32(param + csTimingFlags, flags); |
| return noErr; |
| } |
| |
| case cscGetModeBaseAddress: // Get frame buffer base address |
| D(bug(" GetModeBaseAddress -> base %08x\n", mac_frame_base)); |
| WriteMacInt32(param + csBaseAddr, mac_frame_base); |
| return noErr; |
| |
| case cscGetPreferredConfiguration: // Get default video mode (depth and resolution) |
| D(bug(" GetPreferredConfiguration -> %04x/%08x\n", preferred_apple_mode, preferred_id)); |
| WriteMacInt16(param + csMode, preferred_apple_mode); |
| WriteMacInt32(param + csData, preferred_id); |
| return noErr; |
| |
| case cscGetNextResolution: { // Called iteratively to obtain a list of all supported resolutions |
| uint32 id = ReadMacInt32(param + csPreviousDisplayModeID); |
| D(bug(" GetNextResolution %08x\n", id)); |
| |
| switch (id) { |
| case 0: |
| // Return current resolution |
| id = current_id; |
| break; |
| |
| case 0xfffffffe: |
| // Return first supported resolution |
| id = 0x80; |
| while (!has_resolution(id)) |
| id++; |
| break; |
| |
| default: |
| // Get next resolution |
| if (!has_resolution(id)) |
| return paramErr; |
| id++; |
| while (!has_resolution(id) && id < 0x100) |
| id++; |
| if (id == 0x100) { // No more resolutions |
| WriteMacInt32(param + csRIDisplayModeID, 0xfffffffd); |
| return noErr; |
| } |
| break; |
| } |
| |
| WriteMacInt32(param + csRIDisplayModeID, id); |
| uint32 x, y; |
| get_size_of_resolution(id, x, y); |
| WriteMacInt32(param + csHorizontalPixels, x); |
| WriteMacInt32(param + csVerticalLines, y); |
| WriteMacInt32(param + csRefreshRate, 75 << 16); |
| WriteMacInt16(param + csMaxDepthMode, depth_to_apple_mode(max_depth_of_resolution(id))); |
| WriteMacInt32(param + csResolutionFlags, 0); |
| return noErr; |
| } |
| |
| case cscGetVideoParameters: { // Get information about specified resolution/depth |
| uint32 id = ReadMacInt32(param + csDisplayModeID); |
| uint16 mode = ReadMacInt16(param + csDepthMode); |
| D(bug(" GetVideoParameters %04x/%08x\n", mode, id)); |
| dm_present = true; // Display Manager seems to be present |
| D(bug(" Display Manager detected\n")); |
| |
| vector<video_mode>::const_iterator i, end = modes.end(); |
| for (i = modes.begin(); i != end; ++i) { |
| if (depth_to_apple_mode(i->depth) == mode && i->resolution_id == id) { |
| uint32 vp = ReadMacInt32(param + csVPBlockPtr); |
| WriteMacInt32(vp + vpBaseOffset, 0); |
| WriteMacInt16(vp + vpRowBytes, i->bytes_per_row); |
| WriteMacInt16(vp + vpBounds, 0); |
| WriteMacInt16(vp + vpBounds + 2, 0); |
| WriteMacInt16(vp + vpBounds + 4, i->y); |
| WriteMacInt16(vp + vpBounds + 6, i->x); |
| WriteMacInt16(vp + vpVersion, 0); |
| WriteMacInt16(vp + vpPackType, 0); |
| WriteMacInt32(vp + vpPackSize, 0); |
| WriteMacInt32(vp + vpHRes, 0x00480000); // 72 dpi |
| WriteMacInt32(vp + vpVRes, 0x00480000); |
| uint32 pix_type, pix_size, cmp_count, cmp_size, dev_type; |
| switch (i->depth) { |
| case VDEPTH_16BIT: |
| pix_type = 0x10; pix_size = 16; |
| cmp_count = 3; cmp_size = 5; |
| dev_type = 2; // direct |
| break; |
| case VDEPTH_32BIT: |
| pix_type = 0x10; pix_size = 32; |
| cmp_count = 3; cmp_size = 8; |
| dev_type = 2; // direct |
| break; |
| default: |
| pix_type = 0; pix_size = 1 << i->depth; |
| cmp_count = 1; cmp_size = 1 << i->depth; |
| dev_type = 0; // CLUT |
| break; |
| } |
| WriteMacInt16(vp + vpPixelType, pix_type); |
| WriteMacInt16(vp + vpPixelSize, pix_size); |
| WriteMacInt16(vp + vpCmpCount, cmp_count); |
| WriteMacInt16(vp + vpCmpSize, cmp_size); |
| WriteMacInt32(param + csPageCount, 1); |
| WriteMacInt32(param + csDeviceType, dev_type); |
| return noErr; |
| } |
| } |
| return paramErr; // specified resolution/depth not supported |
| } |
| |
| case cscGetMultiConnect: { |
| uint32 conn = ReadMacInt32(param + csDisplayCountOrNumber); |
| D(bug(" GetMultiConnect %08x\n", conn)); |
| if (conn == 0xffffffff) { // Get number of connections |
| WriteMacInt32(param + csDisplayCountOrNumber, 1); // Single-headed |
| return noErr; |
| } else if (conn == 1) { // Get information about first connection |
| WriteMacInt16(param + csConnectInfo + csDisplayType, 8); // Modeless connection |
| WriteMacInt8(param + csConnectInfo + csConnectTaggedType, 0); |
| WriteMacInt8(param + csConnectInfo + csConnectTaggedData, 0); |
| WriteMacInt32(param + csConnectInfo + csConnectFlags, 0x43); // All modes valid and safe, non-standard tagging |
| WriteMacInt32(param + csConnectInfo + csDisplayComponent, 0); |
| return noErr; |
| } else |
| return paramErr; |
| } |
| |
| default: |
| printf("WARNING: Unknown VideoDriverStatus(%d)\n", code); |
| return statusErr; |
| } |
| } |
| |
| int16 VideoDriverStatus(uint32 pb, uint32 dce) |
| { |
| uint8 slot_id = ReadMacInt8(dce + dCtlSlotId); |
| uint16 code = ReadMacInt16(pb + csCode); |
| uint32 param = ReadMacInt32(pb + csParam); |
| D(bug("VideoDriverStatus slot %02x, code %d\n", slot_id, code)); |
| |
| monitor_desc *m = find_monitor(slot_id); |
| if (m) |
| return m->driver_status(code, param); |
| else |
| return nsDrvErr; |
| } |
