mirror of
https://github.com/kanjitalk755/macemu.git
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3ace37f4eb
SheepShaver working on OSes that don't support maipping of Low Memory globals at 0x00000000, e.g. Windows.
426 lines
12 KiB
C++
426 lines
12 KiB
C++
/*
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* gfxaccel.cpp - Generic Native QuickDraw acceleration
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*
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* SheepShaver (C) 1997-2004 Marc Hellwig and Christian Bauer
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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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#include "sysdeps.h"
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#include "prefs.h"
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#include "video.h"
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#include "video_defs.h"
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#define DEBUG 0
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#include "debug.h"
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/*
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* Utility functions
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*/
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// Return bytes per pixel for requested depth
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static inline int bytes_per_pixel(int depth)
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{
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int bpp;
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switch (depth) {
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case 8:
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bpp = 1;
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break;
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case 15: case 16:
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bpp = 2;
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break;
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case 24: case 32:
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bpp = 4;
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break;
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default:
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abort();
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}
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return bpp;
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}
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/*
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* Rectangle inversion
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*/
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template< int bpp >
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static inline void do_invrect(uint8 *dest, uint32 length)
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{
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#define INVERT_1(PTR, OFS) ((uint8 *)(PTR))[OFS] = ~((uint8 *)(PTR))[OFS]
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#define INVERT_2(PTR, OFS) ((uint16 *)(PTR))[OFS] = ~((uint16 *)(PTR))[OFS]
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#define INVERT_4(PTR, OFS) ((uint32 *)(PTR))[OFS] = ~((uint32 *)(PTR))[OFS]
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#define INVERT_8(PTR, OFS) ((uint64 *)(PTR))[OFS] = ~((uint64 *)(PTR))[OFS]
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#ifndef UNALIGNED_PROFITABLE
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// Align on 16-bit boundaries
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if (bpp < 16 && (((uintptr)dest) & 1)) {
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INVERT_1(dest, 0);
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dest += 1; length -= 1;
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}
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// Align on 32-bit boundaries
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if (bpp < 32 && (((uintptr)dest) & 2)) {
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INVERT_2(dest, 0);
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dest += 2; length -= 2;
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}
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#endif
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// Invert 8-byte words
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if (length >= 8) {
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const int r = (length / 8) % 8;
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dest += r * 8;
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int n = ((length / 8) + 7) / 8;
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switch (r) {
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case 0: do {
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dest += 64;
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INVERT_8(dest, -8);
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case 7: INVERT_8(dest, -7);
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case 6: INVERT_8(dest, -6);
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case 5: INVERT_8(dest, -5);
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case 4: INVERT_8(dest, -4);
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case 3: INVERT_8(dest, -3);
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case 2: INVERT_8(dest, -2);
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case 1: INVERT_8(dest, -1);
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} while (--n > 0);
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}
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}
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// 32-bit cell to invert?
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if (length & 4) {
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INVERT_4(dest, 0);
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if (bpp <= 16)
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dest += 4;
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}
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// 16-bit cell to invert?
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if (bpp <= 16 && (length & 2)) {
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INVERT_2(dest, 0);
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if (bpp <= 8)
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dest += 2;
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}
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// 8-bit cell to invert?
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if (bpp <= 8 && (length & 1))
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INVERT_1(dest, 0);
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#undef INVERT_1
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#undef INVERT_2
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#undef INVERT_4
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#undef INVERT_8
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}
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void NQD_invrect(uint32 p)
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{
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D(bug("accl_invrect %08x\n", p));
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// Get inversion parameters
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int16 dest_X = (int16)ReadMacInt16(p + acclDestRect + 2) - (int16)ReadMacInt16(p + acclDestBoundsRect + 2);
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int16 dest_Y = (int16)ReadMacInt16(p + acclDestRect + 0) - (int16)ReadMacInt16(p + acclDestBoundsRect + 0);
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int16 width = (int16)ReadMacInt16(p + acclDestRect + 6) - (int16)ReadMacInt16(p + acclDestRect + 2);
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int16 height = (int16)ReadMacInt16(p + acclDestRect + 4) - (int16)ReadMacInt16(p + acclDestRect + 0);
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D(bug(" dest X %d, dest Y %d\n", dest_X, dest_Y));
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D(bug(" width %d, height %d, bytes_per_row %d\n", width, height, (int32)ReadMacInt32(p + acclDestRowBytes)));
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//!!?? pen_mode == 14
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// And perform the inversion
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const int bpp = bytes_per_pixel(ReadMacInt32(p + acclDestPixelSize));
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const int dest_row_bytes = (int32)ReadMacInt32(p + acclDestRowBytes);
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uint8 *dest = Mac2HostAddr(ReadMacInt32(p + acclDestBaseAddr) + (dest_Y * dest_row_bytes) + (dest_X * bpp));
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width *= bpp;
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switch (bpp) {
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case 1:
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for (int i = 0; i < height; i++) {
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do_invrect<8>(dest, width);
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dest += dest_row_bytes;
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}
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break;
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case 2:
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for (int i = 0; i < height; i++) {
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do_invrect<16>(dest, width);
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dest += dest_row_bytes;
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}
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break;
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case 4:
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for (int i = 0; i < height; i++) {
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do_invrect<32>(dest, width);
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dest += dest_row_bytes;
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}
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break;
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}
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}
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/*
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* Rectangle filling
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*/
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template< int bpp >
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static inline void do_fillrect(uint8 *dest, uint32 color, uint32 length)
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{
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#define FILL_1(PTR, OFS, VAL) ((uint8 *)(PTR))[OFS] = (VAL)
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#define FILL_2(PTR, OFS, VAL) ((uint16 *)(PTR))[OFS] = (VAL)
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#define FILL_4(PTR, OFS, VAL) ((uint32 *)(PTR))[OFS] = (VAL)
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#define FILL_8(PTR, OFS, VAL) ((uint64 *)(PTR))[OFS] = (VAL)
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#ifndef UNALIGNED_PROFITABLE
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// Align on 16-bit boundaries
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if (bpp < 16 && (((uintptr)dest) & 1)) {
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FILL_1(dest, 0, color);
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dest += 1; length -= 1;
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}
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// Align on 32-bit boundaries
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if (bpp < 32 && (((uintptr)dest) & 2)) {
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FILL_2(dest, 0, color);
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dest += 2; length -= 2;
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}
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#endif
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// Fill 8-byte words
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if (length >= 8) {
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const uint64 c = (((uint64)color) << 32) | color;
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const int r = (length / 8) % 8;
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dest += r * 8;
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int n = ((length / 8) + 7) / 8;
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switch (r) {
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case 0: do {
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dest += 64;
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FILL_8(dest, -8, c);
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case 7: FILL_8(dest, -7, c);
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case 6: FILL_8(dest, -6, c);
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case 5: FILL_8(dest, -5, c);
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case 4: FILL_8(dest, -4, c);
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case 3: FILL_8(dest, -3, c);
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case 2: FILL_8(dest, -2, c);
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case 1: FILL_8(dest, -1, c);
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} while (--n > 0);
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}
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}
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// 32-bit cell to fill?
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if (length & 4) {
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FILL_4(dest, 0, color);
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if (bpp <= 16)
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dest += 4;
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}
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// 16-bit cell to fill?
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if (bpp <= 16 && (length & 2)) {
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FILL_2(dest, 0, color);
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if (bpp <= 8)
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dest += 2;
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}
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// 8-bit cell to fill?
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if (bpp <= 8 && (length & 1))
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FILL_1(dest, 0, color);
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#undef FILL_1
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#undef FILL_2
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#undef FILL_4
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#undef FILL_8
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}
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void NQD_fillrect(uint32 p)
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{
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D(bug("accl_fillrect %08x\n", p));
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// Get filling parameters
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int16 dest_X = (int16)ReadMacInt16(p + acclDestRect + 2) - (int16)ReadMacInt16(p + acclDestBoundsRect + 2);
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int16 dest_Y = (int16)ReadMacInt16(p + acclDestRect + 0) - (int16)ReadMacInt16(p + acclDestBoundsRect + 0);
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int16 width = (int16)ReadMacInt16(p + acclDestRect + 6) - (int16)ReadMacInt16(p + acclDestRect + 2);
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int16 height = (int16)ReadMacInt16(p + acclDestRect + 4) - (int16)ReadMacInt16(p + acclDestRect + 0);
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uint32 color = htonl(ReadMacInt32(p + acclPenMode) == 8 ? ReadMacInt32(p + acclForePen) : ReadMacInt32(p + acclBackPen));
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D(bug(" dest X %d, dest Y %d\n", dest_X, dest_Y));
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D(bug(" width %d, height %d\n", width, height));
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D(bug(" bytes_per_row %d color %08x\n", (int32)ReadMacInt32(p + acclDestRowBytes), color));
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// And perform the fill
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const int bpp = bytes_per_pixel(ReadMacInt32(p + acclDestPixelSize));
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const int dest_row_bytes = (int32)ReadMacInt32(p + acclDestRowBytes);
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uint8 *dest = Mac2HostAddr(ReadMacInt32(p + acclDestBaseAddr) + (dest_Y * dest_row_bytes) + (dest_X * bpp));
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width *= bpp;
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switch (bpp) {
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case 1:
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for (int i = 0; i < height; i++) {
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memset(dest, color, width);
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dest += dest_row_bytes;
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}
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break;
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case 2:
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for (int i = 0; i < height; i++) {
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do_fillrect<16>(dest, color, width);
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dest += dest_row_bytes;
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}
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break;
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case 4:
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for (int i = 0; i < height; i++) {
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do_fillrect<32>(dest, color, width);
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dest += dest_row_bytes;
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}
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break;
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}
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}
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bool NQD_fillrect_hook(uint32 p)
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{
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D(bug("accl_fillrect_hook %08x\n", p));
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// Check if we can accelerate this fillrect
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if (ReadMacInt32(p + 0x284) != 0 && ReadMacInt32(p + acclDestPixelSize) >= 8) {
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const int transfer_mode = ReadMacInt32(p + acclTransferMode);
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if (transfer_mode == 8) {
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// Fill
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WriteMacInt32(p + acclDrawProc, NativeTVECT(NATIVE_FILLRECT));
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return true;
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}
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else if (transfer_mode == 10) {
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// Invert
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WriteMacInt32(p + acclDrawProc, NativeTVECT(NATIVE_INVRECT));
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return true;
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}
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}
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return false;
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}
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/*
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* Isomorphic rectangle blitting
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*/
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// TODO: optimize for VOSF and target pixmap == screen
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void NQD_bitblt(uint32 p)
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{
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D(bug("accl_bitblt %08x\n", p));
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// Get blitting parameters
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int16 src_X = (int16)ReadMacInt16(p + acclSrcRect + 2) - (int16)ReadMacInt16(p + acclSrcBoundsRect + 2);
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int16 src_Y = (int16)ReadMacInt16(p + acclSrcRect + 0) - (int16)ReadMacInt16(p + acclSrcBoundsRect + 0);
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int16 dest_X = (int16)ReadMacInt16(p + acclDestRect + 2) - (int16)ReadMacInt16(p + acclDestBoundsRect + 2);
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int16 dest_Y = (int16)ReadMacInt16(p + acclDestRect + 0) - (int16)ReadMacInt16(p + acclDestBoundsRect + 0);
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int16 width = (int16)ReadMacInt16(p + acclDestRect + 6) - (int16)ReadMacInt16(p + acclDestRect + 2);
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int16 height = (int16)ReadMacInt16(p + acclDestRect + 4) - (int16)ReadMacInt16(p + acclDestRect + 0);
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D(bug(" src addr %08x, dest addr %08x\n", ReadMacInt32(p + acclSrcBaseAddr), ReadMacInt32(p + acclDestBaseAddr)));
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D(bug(" src X %d, src Y %d, dest X %d, dest Y %d\n", src_X, src_Y, dest_X, dest_Y));
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D(bug(" width %d, height %d\n", width, height));
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// And perform the blit
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const int bpp = bytes_per_pixel(ReadMacInt32(p + acclSrcPixelSize));
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width *= bpp;
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if ((int32)ReadMacInt32(p + acclSrcRowBytes) > 0) {
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const int src_row_bytes = (int32)ReadMacInt32(p + acclSrcRowBytes);
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const int dst_row_bytes = (int32)ReadMacInt32(p + acclDestRowBytes);
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uint8 *src = Mac2HostAddr(ReadMacInt32(p + acclSrcBaseAddr) + (src_Y * src_row_bytes) + (src_X * bpp));
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uint8 *dst = Mac2HostAddr(ReadMacInt32(p + acclDestBaseAddr) + (dest_Y * dst_row_bytes) + (dest_X * bpp));
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for (int i = 0; i < height; i++) {
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memmove(dst, src, width);
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src += src_row_bytes;
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dst += dst_row_bytes;
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}
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}
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else {
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const int src_row_bytes = -(int32)ReadMacInt32(p + acclSrcRowBytes);
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const int dst_row_bytes = -(int32)ReadMacInt32(p + acclDestRowBytes);
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uint8 *src = Mac2HostAddr(ReadMacInt32(p + acclSrcBaseAddr) + ((src_Y + height - 1) * src_row_bytes) + (src_X * bpp));
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uint8 *dst = Mac2HostAddr(ReadMacInt32(p + acclDestBaseAddr) + ((dest_Y + height - 1) * dst_row_bytes) + (dest_X * bpp));
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for (int i = height - 1; i >= 0; i--) {
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memmove(dst, src, width);
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src -= src_row_bytes;
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dst -= dst_row_bytes;
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}
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}
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}
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/*
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BitBlt transfer modes:
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0 : srcCopy
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1 : srcOr
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2 : srcXor
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3 : srcBic
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4 : notSrcCopy
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5 : notSrcOr
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6 : notSrcXor
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7 : notSrcBic
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32 : blend
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33 : addPin
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34 : addOver
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35 : subPin
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36 : transparent
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37 : adMax
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38 : subOver
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39 : adMin
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50 : hilite
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*/
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bool NQD_bitblt_hook(uint32 p)
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{
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D(bug("accl_draw_hook %08x\n", p));
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// Check if we can accelerate this bitblt
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if (ReadMacInt32(p + 0x018) + ReadMacInt32(p + 0x128) == 0 &&
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ReadMacInt32(p + 0x130) == 0 &&
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ReadMacInt32(p + acclSrcPixelSize) >= 8 &&
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ReadMacInt32(p + acclSrcPixelSize) == ReadMacInt32(p + acclDestPixelSize) &&
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(ReadMacInt32(p + acclSrcRowBytes) ^ ReadMacInt32(p + acclDestRowBytes)) >= 0 && // same sign?
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ReadMacInt32(p + acclTransferMode) == 0 && // srcCopy?
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ReadMacInt32(p + 0x15c) > 0) {
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// Yes, set function pointer
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WriteMacInt32(p + acclDrawProc, NativeTVECT(NATIVE_BITBLT));
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return true;
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}
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return false;
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}
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// Wait for graphics operation to finish
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bool NQD_sync_hook(uint32 arg)
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{
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D(bug("accl_sync_hook %08x\n", arg));
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return true;
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}
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/*
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* Install Native QuickDraw acceleration hooks
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*/
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void VideoInstallAccel(void)
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{
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// Install acceleration hooks
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if (PrefsFindBool("gfxaccel")) {
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D(bug("Video: Installing acceleration hooks\n"));
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uint32 base;
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SheepVar bitblt_hook_info(sizeof(accl_hook_info));
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base = bitblt_hook_info.addr();
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WriteMacInt32(base + 0, NativeTVECT(NATIVE_BITBLT_HOOK));
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WriteMacInt32(base + 4, NativeTVECT(NATIVE_SYNC_HOOK));
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WriteMacInt32(base + 8, ACCL_BITBLT);
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NQDMisc(6, bitblt_hook_info.addr());
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SheepVar fillrect_hook_info(sizeof(accl_hook_info));
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base = fillrect_hook_info.addr();
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WriteMacInt32(base + 0, NativeTVECT(NATIVE_FILLRECT_HOOK));
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WriteMacInt32(base + 4, NativeTVECT(NATIVE_SYNC_HOOK));
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WriteMacInt32(base + 8, ACCL_FILLRECT);
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NQDMisc(6, fillrect_hook_info.addr());
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}
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}
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