SheepShaver/src/gfxaccel.cpp

/*
 *  gfxaccel.cpp - Generic Native QuickDraw acceleration
 *
 *  SheepShaver (C) 1997-2005 Marc Hellwig and Christian Bauer
 *
 *  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
 */

#include "sysdeps.h"

#include "prefs.h"
#include "video.h"
#include "video_defs.h"

#define DEBUG 0
#include "debug.h"


/*
 *      Utility functions
 */

// Return bytes per pixel for requested depth
static inline int bytes_per_pixel(int depth)
{
        int bpp;
        switch (depth) {
        case 8:
                bpp = 1;
                break;
        case 15: case 16:
                bpp = 2;
                break;
        case 24: case 32:
                bpp = 4;
                break;
        default:
                abort();
        }
        return bpp;
}


/*
 *      Rectangle inversion
 */

template< int bpp >
static inline void do_invrect(uint8 *dest, uint32 length)
{
#define INVERT_1(PTR, OFS) ((uint8  *)(PTR))[OFS] = ~((uint8  *)(PTR))[OFS]
#define INVERT_2(PTR, OFS) ((uint16 *)(PTR))[OFS] = ~((uint16 *)(PTR))[OFS]
#define INVERT_4(PTR, OFS) ((uint32 *)(PTR))[OFS] = ~((uint32 *)(PTR))[OFS]
#define INVERT_8(PTR, OFS) ((uint64 *)(PTR))[OFS] = ~((uint64 *)(PTR))[OFS]

#ifndef UNALIGNED_PROFITABLE
        // Align on 16-bit boundaries
        if (bpp < 16 && (((uintptr)dest) & 1)) {
                INVERT_1(dest, 0);
                dest += 1; length -= 1;
        }

        // Align on 32-bit boundaries
        if (bpp < 32 && (((uintptr)dest) & 2)) {
                INVERT_2(dest, 0);
                dest += 2; length -= 2;
        }
#endif

        // Invert 8-byte words
        if (length >= 8) {
                const int r = (length / 8) % 8;
                dest += r * 8;

                int n = ((length / 8) + 7) / 8;
                switch (r) {
                case 0: do {
                                dest += 64;
                                INVERT_8(dest, -8);
                case 7: INVERT_8(dest, -7);
                case 6: INVERT_8(dest, -6);
                case 5: INVERT_8(dest, -5);
                case 4: INVERT_8(dest, -4);
                case 3: INVERT_8(dest, -3);
                case 2: INVERT_8(dest, -2);
                case 1: INVERT_8(dest, -1);
                                } while (--n > 0);
                }
        }

        // 32-bit cell to invert?
        if (length & 4) {
                INVERT_4(dest, 0);
                if (bpp <= 16)
                        dest += 4;
        }

        // 16-bit cell to invert?
        if (bpp <= 16 && (length & 2)) {
                INVERT_2(dest, 0);
                if (bpp <= 8)
                        dest += 2;
        }

        // 8-bit cell to invert?
        if (bpp <= 8 && (length & 1))
                INVERT_1(dest, 0);

#undef INVERT_1
#undef INVERT_2
#undef INVERT_4
#undef INVERT_8
}

void NQD_invrect(uint32 p)
{
        D(bug("accl_invrect %08x\n", p));

        // Get inversion parameters
        int16 dest_X = (int16)ReadMacInt16(p + acclDestRect + 2) - (int16)ReadMacInt16(p + acclDestBoundsRect + 2);
        int16 dest_Y = (int16)ReadMacInt16(p + acclDestRect + 0) - (int16)ReadMacInt16(p + acclDestBoundsRect + 0);
        int16 width  = (int16)ReadMacInt16(p + acclDestRect + 6) - (int16)ReadMacInt16(p + acclDestRect + 2);
        int16 height = (int16)ReadMacInt16(p + acclDestRect + 4) - (int16)ReadMacInt16(p + acclDestRect + 0);
        D(bug(" dest X %d, dest Y %d\n", dest_X, dest_Y));
        D(bug(" width %d, height %d, bytes_per_row %d\n", width, height, (int32)ReadMacInt32(p + acclDestRowBytes)));

        //!!?? pen_mode == 14

        // And perform the inversion
        const int bpp = bytes_per_pixel(ReadMacInt32(p + acclDestPixelSize));
        const int dest_row_bytes = (int32)ReadMacInt32(p + acclDestRowBytes);
        uint8 *dest = Mac2HostAddr(ReadMacInt32(p + acclDestBaseAddr) + (dest_Y * dest_row_bytes) + (dest_X * bpp));
        width *= bpp;
        switch (bpp) {
        case 1:
                for (int i = 0; i < height; i++) {
                        do_invrect<8>(dest, width);
                        dest += dest_row_bytes;
                }
                break;
        case 2:
                for (int i = 0; i < height; i++) {
                        do_invrect<16>(dest, width);
                        dest += dest_row_bytes;
                }
                break;
        case 4:
                for (int i = 0; i < height; i++) {
                        do_invrect<32>(dest, width);
                        dest += dest_row_bytes;
                }
                break;
        }
}


/*
 *      Rectangle filling
 */

template< int bpp >
static inline void do_fillrect(uint8 *dest, uint32 color, uint32 length)
{
#define FILL_1(PTR, OFS, VAL) ((uint8  *)(PTR))[OFS] = (VAL)
#define FILL_2(PTR, OFS, VAL) ((uint16 *)(PTR))[OFS] = (VAL)
#define FILL_4(PTR, OFS, VAL) ((uint32 *)(PTR))[OFS] = (VAL)
#define FILL_8(PTR, OFS, VAL) ((uint64 *)(PTR))[OFS] = (VAL)

#ifndef UNALIGNED_PROFITABLE
        // Align on 16-bit boundaries
        if (bpp < 16 && (((uintptr)dest) & 1)) {
                FILL_1(dest, 0, color);
                dest += 1; length -= 1;
        }

        // Align on 32-bit boundaries
        if (bpp < 32 && (((uintptr)dest) & 2)) {
                FILL_2(dest, 0, color);
                dest += 2; length -= 2;
        }
#endif

        // Fill 8-byte words
        if (length >= 8) {
                const uint64 c = (((uint64)color) << 32) | color;
                const int r = (length / 8) % 8;
                dest += r * 8;

                int n = ((length / 8) + 7) / 8;
                switch (r) {
                case 0: do {
                                dest += 64;
                                FILL_8(dest, -8, c);
                case 7: FILL_8(dest, -7, c);
                case 6: FILL_8(dest, -6, c);
                case 5: FILL_8(dest, -5, c);
                case 4: FILL_8(dest, -4, c);
                case 3: FILL_8(dest, -3, c);
                case 2: FILL_8(dest, -2, c);
                case 1: FILL_8(dest, -1, c);
                                } while (--n > 0);
                }
        }

        // 32-bit cell to fill?
        if (length & 4) {
                FILL_4(dest, 0, color);
                if (bpp <= 16)
                        dest += 4;
        }

        // 16-bit cell to fill?
        if (bpp <= 16 && (length & 2)) {
                FILL_2(dest, 0, color);
                if (bpp <= 8)
                        dest += 2;
        }

        // 8-bit cell to fill?
        if (bpp <= 8 && (length & 1))
                FILL_1(dest, 0, color);

#undef FILL_1
#undef FILL_2
#undef FILL_4
#undef FILL_8
}

void NQD_fillrect(uint32 p)
{
        D(bug("accl_fillrect %08x\n", p));

        // Get filling parameters
        int16 dest_X = (int16)ReadMacInt16(p + acclDestRect + 2) - (int16)ReadMacInt16(p + acclDestBoundsRect + 2);
        int16 dest_Y = (int16)ReadMacInt16(p + acclDestRect + 0) - (int16)ReadMacInt16(p + acclDestBoundsRect + 0);
        int16 width  = (int16)ReadMacInt16(p + acclDestRect + 6) - (int16)ReadMacInt16(p + acclDestRect + 2);
        int16 height = (int16)ReadMacInt16(p + acclDestRect + 4) - (int16)ReadMacInt16(p + acclDestRect + 0);
        uint32 color = htonl(ReadMacInt32(p + acclPenMode) == 8 ? ReadMacInt32(p + acclForePen) : ReadMacInt32(p + acclBackPen));
        D(bug(" dest X %d, dest Y %d\n", dest_X, dest_Y));
        D(bug(" width %d, height %d\n", width, height));
        D(bug(" bytes_per_row %d color %08x\n", (int32)ReadMacInt32(p + acclDestRowBytes), color));

        // And perform the fill
        const int bpp = bytes_per_pixel(ReadMacInt32(p + acclDestPixelSize));
        const int dest_row_bytes = (int32)ReadMacInt32(p + acclDestRowBytes);
        uint8 *dest = Mac2HostAddr(ReadMacInt32(p + acclDestBaseAddr) + (dest_Y * dest_row_bytes) + (dest_X * bpp));
        width *= bpp;
        switch (bpp) {
        case 1:
                for (int i = 0; i < height; i++) {
                        memset(dest, color, width);
                        dest += dest_row_bytes;
                }
                break;
        case 2:
                for (int i = 0; i < height; i++) {
                        do_fillrect<16>(dest, color, width);
                        dest += dest_row_bytes;
                }
                break;
        case 4:
                for (int i = 0; i < height; i++) {
                        do_fillrect<32>(dest, color, width);
                        dest += dest_row_bytes;
                }
                break;
        }
}

bool NQD_fillrect_hook(uint32 p)
{
        D(bug("accl_fillrect_hook %08x\n", p));

        // Check if we can accelerate this fillrect
        if (ReadMacInt32(p + 0x284) != 0 && ReadMacInt32(p + acclDestPixelSize) >= 8) {
                const int transfer_mode = ReadMacInt32(p + acclTransferMode);
                if (transfer_mode == 8) {
                        // Fill
                        WriteMacInt32(p + acclDrawProc, NativeTVECT(NATIVE_FILLRECT));
                        return true;
                }
                else if (transfer_mode == 10) {
                        // Invert
                        WriteMacInt32(p + acclDrawProc, NativeTVECT(NATIVE_INVRECT));
                        return true;
                }
        }
        return false;
}


/*
 *      Isomorphic rectangle blitting
 */

// TODO: optimize for VOSF and target pixmap == screen
void NQD_bitblt(uint32 p)
{
        D(bug("accl_bitblt %08x\n", p));

        // Get blitting parameters
        int16 src_X  = (int16)ReadMacInt16(p + acclSrcRect + 2) - (int16)ReadMacInt16(p + acclSrcBoundsRect + 2);
        int16 src_Y  = (int16)ReadMacInt16(p + acclSrcRect + 0) - (int16)ReadMacInt16(p + acclSrcBoundsRect + 0);
        int16 dest_X = (int16)ReadMacInt16(p + acclDestRect + 2) - (int16)ReadMacInt16(p + acclDestBoundsRect + 2);
        int16 dest_Y = (int16)ReadMacInt16(p + acclDestRect + 0) - (int16)ReadMacInt16(p + acclDestBoundsRect + 0);
        int16 width  = (int16)ReadMacInt16(p + acclDestRect + 6) - (int16)ReadMacInt16(p + acclDestRect + 2);
        int16 height = (int16)ReadMacInt16(p + acclDestRect + 4) - (int16)ReadMacInt16(p + acclDestRect + 0);
        D(bug(" src addr %08x, dest addr %08x\n", ReadMacInt32(p + acclSrcBaseAddr), ReadMacInt32(p + acclDestBaseAddr)));
        D(bug(" src X %d, src Y %d, dest X %d, dest Y %d\n", src_X, src_Y, dest_X, dest_Y));
        D(bug(" width %d, height %d\n", width, height));

        // And perform the blit
        const int bpp = bytes_per_pixel(ReadMacInt32(p + acclSrcPixelSize));
        width *= bpp;
        if ((int32)ReadMacInt32(p + acclSrcRowBytes) > 0) {
                const int src_row_bytes = (int32)ReadMacInt32(p + acclSrcRowBytes);
                const int dst_row_bytes = (int32)ReadMacInt32(p + acclDestRowBytes);
                uint8 *src = Mac2HostAddr(ReadMacInt32(p + acclSrcBaseAddr) + (src_Y * src_row_bytes) + (src_X * bpp));
                uint8 *dst = Mac2HostAddr(ReadMacInt32(p + acclDestBaseAddr) + (dest_Y * dst_row_bytes) + (dest_X * bpp));
                for (int i = 0; i < height; i++) {
                        memmove(dst, src, width);
                        src += src_row_bytes;
                        dst += dst_row_bytes;
                }
        }
        else {
                const int src_row_bytes = -(int32)ReadMacInt32(p + acclSrcRowBytes);
                const int dst_row_bytes = -(int32)ReadMacInt32(p + acclDestRowBytes);
                uint8 *src = Mac2HostAddr(ReadMacInt32(p + acclSrcBaseAddr) + ((src_Y + height - 1) * src_row_bytes) + (src_X * bpp));
                uint8 *dst = Mac2HostAddr(ReadMacInt32(p + acclDestBaseAddr) + ((dest_Y + height - 1) * dst_row_bytes) + (dest_X * bpp));
                for (int i = height - 1; i >= 0; i--) {
                        memmove(dst, src, width);
                        src -= src_row_bytes;
                        dst -= dst_row_bytes;
                }
        }
}

/*
  BitBlt transfer modes:
  0 : srcCopy
  1 : srcOr
  2 : srcXor
  3 : srcBic
  4 : notSrcCopy
  5 : notSrcOr
  6 : notSrcXor
  7 : notSrcBic
  32 : blend
  33 : addPin
  34 : addOver
  35 : subPin
  36 : transparent
  37 : adMax
  38 : subOver
  39 : adMin
  50 : hilite
*/

bool NQD_bitblt_hook(uint32 p)
{
        D(bug("accl_draw_hook %08x\n", p));

        // Check if we can accelerate this bitblt
        if (ReadMacInt32(p + 0x018) + ReadMacInt32(p + 0x128) == 0 &&
                ReadMacInt32(p + 0x130) == 0 &&
                ReadMacInt32(p + acclSrcPixelSize) >= 8 &&
                ReadMacInt32(p + acclSrcPixelSize) == ReadMacInt32(p + acclDestPixelSize) &&
                (int32)(ReadMacInt32(p + acclSrcRowBytes) ^ ReadMacInt32(p + acclDestRowBytes)) >= 0 && // same sign?
                ReadMacInt32(p + acclTransferMode) == 0 &&                                                                                              // srcCopy?
                (int32)ReadMacInt32(p + 0x15c) > 0) {

                // Yes, set function pointer
                WriteMacInt32(p + acclDrawProc, NativeTVECT(NATIVE_BITBLT));
                return true;
        }
        return false;
}

// Wait for graphics operation to finish
bool NQD_sync_hook(uint32 arg)
{
        D(bug("accl_sync_hook %08x\n", arg));
        return true;
}


/*
 *      Install Native QuickDraw acceleration hooks
 */

void VideoInstallAccel(void)
{
        // Install acceleration hooks
        if (PrefsFindBool("gfxaccel")) {
                D(bug("Video: Installing acceleration hooks\n"));
                uint32 base;

                SheepVar bitblt_hook_info(sizeof(accl_hook_info));
                base = bitblt_hook_info.addr();
                WriteMacInt32(base + 0, NativeTVECT(NATIVE_BITBLT_HOOK));
                WriteMacInt32(base + 4, NativeTVECT(NATIVE_SYNC_HOOK));
                WriteMacInt32(base + 8, ACCL_BITBLT);
                NQDMisc(6, bitblt_hook_info.addr());

                SheepVar fillrect_hook_info(sizeof(accl_hook_info));
                base = fillrect_hook_info.addr();
                WriteMacInt32(base + 0, NativeTVECT(NATIVE_FILLRECT_HOOK));
                WriteMacInt32(base + 4, NativeTVECT(NATIVE_SYNC_HOOK));
                WriteMacInt32(base + 8, ACCL_FILLRECT);
                NQDMisc(6, fillrect_hook_info.addr());
        }
}
Revision:	1.4
Committed:	2006-05-07T10:49:48Z (18 years, 6 months ago) by gbeauche
Branch:	MAIN
Changes since 1.3:	+3 -3 lines
Log Message:	Fix NQD_bitblt_hook() to perform sign check correctly
#	User	Rev	Content
1	gbeauche	1.1	/*
2			* gfxaccel.cpp - Generic Native QuickDraw acceleration
3			*
4	gbeauche	1.3	* SheepShaver (C) 1997-2005 Marc Hellwig and Christian Bauer
5	gbeauche	1.1	*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19			*/
20
21			#include "sysdeps.h"
22
23			#include "prefs.h"
24			#include "video.h"
25			#include "video_defs.h"
26
27			#define DEBUG 0
28			#include "debug.h"
29
30
31			/*
32			* Utility functions
33			*/
34
35			// Return bytes per pixel for requested depth
36			static inline int bytes_per_pixel(int depth)
37			{
38			int bpp;
39			switch (depth) {
40			case 8:
41			bpp = 1;
42			break;
43			case 15: case 16:
44			bpp = 2;
45			break;
46			case 24: case 32:
47			bpp = 4;
48			break;
49			default:
50			abort();
51			}
52			return bpp;
53			}
54
55
56			/*
57			* Rectangle inversion
58			*/
59
60			template< int bpp >
61			static inline void do_invrect(uint8 *dest, uint32 length)
62			{
63			#define INVERT_1(PTR, OFS) ((uint8 )(PTR))[OFS] = ~((uint8 )(PTR))[OFS]
64			#define INVERT_2(PTR, OFS) ((uint16 )(PTR))[OFS] = ~((uint16 )(PTR))[OFS]
65			#define INVERT_4(PTR, OFS) ((uint32 )(PTR))[OFS] = ~((uint32 )(PTR))[OFS]
66			#define INVERT_8(PTR, OFS) ((uint64 )(PTR))[OFS] = ~((uint64 )(PTR))[OFS]
67
68			#ifndef UNALIGNED_PROFITABLE
69			// Align on 16-bit boundaries
70			if (bpp < 16 && (((uintptr)dest) & 1)) {
71			INVERT_1(dest, 0);
72			dest += 1; length -= 1;
73			}
74
75			// Align on 32-bit boundaries
76			if (bpp < 32 && (((uintptr)dest) & 2)) {
77			INVERT_2(dest, 0);
78			dest += 2; length -= 2;
79			}
80			#endif
81
82			// Invert 8-byte words
83			if (length >= 8) {
84			const int r = (length / 8) % 8;
85			dest += r * 8;
86
87			int n = ((length / 8) + 7) / 8;
88			switch (r) {
89			case 0: do {
90			dest += 64;
91			INVERT_8(dest, -8);
92			case 7: INVERT_8(dest, -7);
93			case 6: INVERT_8(dest, -6);
94			case 5: INVERT_8(dest, -5);
95			case 4: INVERT_8(dest, -4);
96			case 3: INVERT_8(dest, -3);
97			case 2: INVERT_8(dest, -2);
98			case 1: INVERT_8(dest, -1);
99			} while (--n > 0);
100			}
101			}
102
103			// 32-bit cell to invert?
104			if (length & 4) {
105			INVERT_4(dest, 0);
106			if (bpp <= 16)
107			dest += 4;
108			}
109
110			// 16-bit cell to invert?
111			if (bpp <= 16 && (length & 2)) {
112			INVERT_2(dest, 0);
113			if (bpp <= 8)
114			dest += 2;
115			}
116
117			// 8-bit cell to invert?
118			if (bpp <= 8 && (length & 1))
119			INVERT_1(dest, 0);
120
121			#undef INVERT_1
122			#undef INVERT_2
123			#undef INVERT_4
124			#undef INVERT_8
125			}
126
127			void NQD_invrect(uint32 p)
128			{
129			D(bug("accl_invrect %08x\n", p));
130
131			// Get inversion parameters
132			int16 dest_X = (int16)ReadMacInt16(p + acclDestRect + 2) - (int16)ReadMacInt16(p + acclDestBoundsRect + 2);
133			int16 dest_Y = (int16)ReadMacInt16(p + acclDestRect + 0) - (int16)ReadMacInt16(p + acclDestBoundsRect + 0);
134			int16 width = (int16)ReadMacInt16(p + acclDestRect + 6) - (int16)ReadMacInt16(p + acclDestRect + 2);
135			int16 height = (int16)ReadMacInt16(p + acclDestRect + 4) - (int16)ReadMacInt16(p + acclDestRect + 0);
136			D(bug(" dest X %d, dest Y %d\n", dest_X, dest_Y));
137			D(bug(" width %d, height %d, bytes_per_row %d\n", width, height, (int32)ReadMacInt32(p + acclDestRowBytes)));
138
139			//!!?? pen_mode == 14
140
141			// And perform the inversion
142			const int bpp = bytes_per_pixel(ReadMacInt32(p + acclDestPixelSize));
143			const int dest_row_bytes = (int32)ReadMacInt32(p + acclDestRowBytes);
144			uint8 dest = Mac2HostAddr(ReadMacInt32(p + acclDestBaseAddr) + (dest_Y dest_row_bytes) + (dest_X * bpp));
145			width *= bpp;
146			switch (bpp) {
147			case 1:
148			for (int i = 0; i < height; i++) {
149			do_invrect<8>(dest, width);
150			dest += dest_row_bytes;
151			}
152			break;
153			case 2:
154			for (int i = 0; i < height; i++) {
155			do_invrect<16>(dest, width);
156			dest += dest_row_bytes;
157			}
158			break;
159			case 4:
160			for (int i = 0; i < height; i++) {
161			do_invrect<32>(dest, width);
162			dest += dest_row_bytes;
163			}
164			break;
165			}
166			}
167
168
169			/*
170			* Rectangle filling
171			*/
172
173			template< int bpp >
174			static inline void do_fillrect(uint8 *dest, uint32 color, uint32 length)
175			{
176			#define FILL_1(PTR, OFS, VAL) ((uint8 *)(PTR))[OFS] = (VAL)
177			#define FILL_2(PTR, OFS, VAL) ((uint16 *)(PTR))[OFS] = (VAL)
178			#define FILL_4(PTR, OFS, VAL) ((uint32 *)(PTR))[OFS] = (VAL)
179			#define FILL_8(PTR, OFS, VAL) ((uint64 *)(PTR))[OFS] = (VAL)
180
181			#ifndef UNALIGNED_PROFITABLE
182			// Align on 16-bit boundaries
183			if (bpp < 16 && (((uintptr)dest) & 1)) {
184			FILL_1(dest, 0, color);
185			dest += 1; length -= 1;
186			}
187
188			// Align on 32-bit boundaries
189			if (bpp < 32 && (((uintptr)dest) & 2)) {
190			FILL_2(dest, 0, color);
191			dest += 2; length -= 2;
192			}
193			#endif
194
195			// Fill 8-byte words
196			if (length >= 8) {
197			const uint64 c = (((uint64)color) << 32) \| color;
198			const int r = (length / 8) % 8;
199			dest += r * 8;
200
201			int n = ((length / 8) + 7) / 8;
202			switch (r) {
203			case 0: do {
204			dest += 64;
205			FILL_8(dest, -8, c);
206			case 7: FILL_8(dest, -7, c);
207			case 6: FILL_8(dest, -6, c);
208			case 5: FILL_8(dest, -5, c);
209			case 4: FILL_8(dest, -4, c);
210			case 3: FILL_8(dest, -3, c);
211			case 2: FILL_8(dest, -2, c);
212			case 1: FILL_8(dest, -1, c);
213			} while (--n > 0);
214			}
215			}
216
217			// 32-bit cell to fill?
218			if (length & 4) {
219			FILL_4(dest, 0, color);
220			if (bpp <= 16)
221			dest += 4;
222			}
223
224			// 16-bit cell to fill?
225			if (bpp <= 16 && (length & 2)) {
226			FILL_2(dest, 0, color);
227			if (bpp <= 8)
228			dest += 2;
229			}
230
231			// 8-bit cell to fill?
232			if (bpp <= 8 && (length & 1))
233			FILL_1(dest, 0, color);
234
235			#undef FILL_1
236			#undef FILL_2
237			#undef FILL_4
238			#undef FILL_8
239			}
240
241			void NQD_fillrect(uint32 p)
242			{
243			D(bug("accl_fillrect %08x\n", p));
244
245			// Get filling parameters
246			int16 dest_X = (int16)ReadMacInt16(p + acclDestRect + 2) - (int16)ReadMacInt16(p + acclDestBoundsRect + 2);
247			int16 dest_Y = (int16)ReadMacInt16(p + acclDestRect + 0) - (int16)ReadMacInt16(p + acclDestBoundsRect + 0);
248			int16 width = (int16)ReadMacInt16(p + acclDestRect + 6) - (int16)ReadMacInt16(p + acclDestRect + 2);
249			int16 height = (int16)ReadMacInt16(p + acclDestRect + 4) - (int16)ReadMacInt16(p + acclDestRect + 0);
250			uint32 color = htonl(ReadMacInt32(p + acclPenMode) == 8 ? ReadMacInt32(p + acclForePen) : ReadMacInt32(p + acclBackPen));
251			D(bug(" dest X %d, dest Y %d\n", dest_X, dest_Y));
252			D(bug(" width %d, height %d\n", width, height));
253			D(bug(" bytes_per_row %d color %08x\n", (int32)ReadMacInt32(p + acclDestRowBytes), color));
254
255			// And perform the fill
256			const int bpp = bytes_per_pixel(ReadMacInt32(p + acclDestPixelSize));
257			const int dest_row_bytes = (int32)ReadMacInt32(p + acclDestRowBytes);
258			uint8 dest = Mac2HostAddr(ReadMacInt32(p + acclDestBaseAddr) + (dest_Y dest_row_bytes) + (dest_X * bpp));
259			width *= bpp;
260			switch (bpp) {
261			case 1:
262			for (int i = 0; i < height; i++) {
263			memset(dest, color, width);
264			dest += dest_row_bytes;
265			}
266			break;
267			case 2:
268			for (int i = 0; i < height; i++) {
269			do_fillrect<16>(dest, color, width);
270			dest += dest_row_bytes;
271			}
272			break;
273			case 4:
274			for (int i = 0; i < height; i++) {
275			do_fillrect<32>(dest, color, width);
276			dest += dest_row_bytes;
277			}
278			break;
279			}
280			}
281
282			bool NQD_fillrect_hook(uint32 p)
283			{
284			D(bug("accl_fillrect_hook %08x\n", p));
285
286			// Check if we can accelerate this fillrect
287			if (ReadMacInt32(p + 0x284) != 0 && ReadMacInt32(p + acclDestPixelSize) >= 8) {
288			const int transfer_mode = ReadMacInt32(p + acclTransferMode);
289			if (transfer_mode == 8) {
290			// Fill
291			WriteMacInt32(p + acclDrawProc, NativeTVECT(NATIVE_FILLRECT));
292			return true;
293			}
294			else if (transfer_mode == 10) {
295			// Invert
296			WriteMacInt32(p + acclDrawProc, NativeTVECT(NATIVE_INVRECT));
297			return true;
298			}
299			}
300			return false;
301			}
302
303
304			/*
305			* Isomorphic rectangle blitting
306			*/
307
308			// TODO: optimize for VOSF and target pixmap == screen
309			void NQD_bitblt(uint32 p)
310			{
311			D(bug("accl_bitblt %08x\n", p));
312
313			// Get blitting parameters
314			int16 src_X = (int16)ReadMacInt16(p + acclSrcRect + 2) - (int16)ReadMacInt16(p + acclSrcBoundsRect + 2);
315			int16 src_Y = (int16)ReadMacInt16(p + acclSrcRect + 0) - (int16)ReadMacInt16(p + acclSrcBoundsRect + 0);
316			int16 dest_X = (int16)ReadMacInt16(p + acclDestRect + 2) - (int16)ReadMacInt16(p + acclDestBoundsRect + 2);
317			int16 dest_Y = (int16)ReadMacInt16(p + acclDestRect + 0) - (int16)ReadMacInt16(p + acclDestBoundsRect + 0);
318			int16 width = (int16)ReadMacInt16(p + acclDestRect + 6) - (int16)ReadMacInt16(p + acclDestRect + 2);
319			int16 height = (int16)ReadMacInt16(p + acclDestRect + 4) - (int16)ReadMacInt16(p + acclDestRect + 0);
320			D(bug(" src addr %08x, dest addr %08x\n", ReadMacInt32(p + acclSrcBaseAddr), ReadMacInt32(p + acclDestBaseAddr)));
321			D(bug(" src X %d, src Y %d, dest X %d, dest Y %d\n", src_X, src_Y, dest_X, dest_Y));
322			D(bug(" width %d, height %d\n", width, height));
323
324			// And perform the blit
325			const int bpp = bytes_per_pixel(ReadMacInt32(p + acclSrcPixelSize));
326			width *= bpp;
327			if ((int32)ReadMacInt32(p + acclSrcRowBytes) > 0) {
328			const int src_row_bytes = (int32)ReadMacInt32(p + acclSrcRowBytes);
329			const int dst_row_bytes = (int32)ReadMacInt32(p + acclDestRowBytes);
330			uint8 src = Mac2HostAddr(ReadMacInt32(p + acclSrcBaseAddr) + (src_Y src_row_bytes) + (src_X * bpp));
331			uint8 dst = Mac2HostAddr(ReadMacInt32(p + acclDestBaseAddr) + (dest_Y dst_row_bytes) + (dest_X * bpp));
332			for (int i = 0; i < height; i++) {
333			memmove(dst, src, width);
334			src += src_row_bytes;
335			dst += dst_row_bytes;
336			}
337			}
338			else {
339			const int src_row_bytes = -(int32)ReadMacInt32(p + acclSrcRowBytes);
340			const int dst_row_bytes = -(int32)ReadMacInt32(p + acclDestRowBytes);
341			uint8 src = Mac2HostAddr(ReadMacInt32(p + acclSrcBaseAddr) + ((src_Y + height - 1) src_row_bytes) + (src_X * bpp));
342			uint8 dst = Mac2HostAddr(ReadMacInt32(p + acclDestBaseAddr) + ((dest_Y + height - 1) dst_row_bytes) + (dest_X * bpp));
343			for (int i = height - 1; i >= 0; i--) {
344			memmove(dst, src, width);
345			src -= src_row_bytes;
346			dst -= dst_row_bytes;
347			}
348			}
349			}
350
351			/*
352			BitBlt transfer modes:
353			0 : srcCopy
354			1 : srcOr
355			2 : srcXor
356			3 : srcBic
357			4 : notSrcCopy
358			5 : notSrcOr
359			6 : notSrcXor
360			7 : notSrcBic
361			32 : blend
362			33 : addPin
363			34 : addOver
364			35 : subPin
365			36 : transparent
366			37 : adMax
367			38 : subOver
368			39 : adMin
369			50 : hilite
370			*/
371
372			bool NQD_bitblt_hook(uint32 p)
373			{
374			D(bug("accl_draw_hook %08x\n", p));
375
376			// Check if we can accelerate this bitblt
377			if (ReadMacInt32(p + 0x018) + ReadMacInt32(p + 0x128) == 0 &&
378			ReadMacInt32(p + 0x130) == 0 &&
379			ReadMacInt32(p + acclSrcPixelSize) >= 8 &&
380			ReadMacInt32(p + acclSrcPixelSize) == ReadMacInt32(p + acclDestPixelSize) &&
381	gbeauche	1.4	(int32)(ReadMacInt32(p + acclSrcRowBytes) ^ ReadMacInt32(p + acclDestRowBytes)) >= 0 && // same sign?
382			ReadMacInt32(p + acclTransferMode) == 0 && // srcCopy?
383			(int32)ReadMacInt32(p + 0x15c) > 0) {
384	gbeauche	1.1
385			// Yes, set function pointer
386			WriteMacInt32(p + acclDrawProc, NativeTVECT(NATIVE_BITBLT));
387			return true;
388			}
389			return false;
390			}
391
392			// Wait for graphics operation to finish
393			bool NQD_sync_hook(uint32 arg)
394			{
395			D(bug("accl_sync_hook %08x\n", arg));
396			return true;
397			}
398
399
400			/*
401			* Install Native QuickDraw acceleration hooks
402			*/
403
404			void VideoInstallAccel(void)
405			{
406			// Install acceleration hooks
407			if (PrefsFindBool("gfxaccel")) {
408			D(bug("Video: Installing acceleration hooks\n"));
409			uint32 base;
410
411			SheepVar bitblt_hook_info(sizeof(accl_hook_info));
412			base = bitblt_hook_info.addr();
413			WriteMacInt32(base + 0, NativeTVECT(NATIVE_BITBLT_HOOK));
414			WriteMacInt32(base + 4, NativeTVECT(NATIVE_SYNC_HOOK));
415			WriteMacInt32(base + 8, ACCL_BITBLT);
416	gbeauche	1.2	NQDMisc(6, bitblt_hook_info.addr());
417	gbeauche	1.1
418			SheepVar fillrect_hook_info(sizeof(accl_hook_info));
419			base = fillrect_hook_info.addr();
420			WriteMacInt32(base + 0, NativeTVECT(NATIVE_FILLRECT_HOOK));
421			WriteMacInt32(base + 4, NativeTVECT(NATIVE_SYNC_HOOK));
422			WriteMacInt32(base + 8, ACCL_FILLRECT);
423	gbeauche	1.2	NQDMisc(6, fillrect_hook_info.addr());
424	gbeauche	1.1	}
425			}