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scummvm/backends/morphos/morphos_scaler.cpp
Max Horn 47280d9433 Updated copyright 
svn-id: r16398
2005-01-01 16:09:25 +00:00

848 lines
25 KiB
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/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2005 The ScummVM Team
*
* 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.
*
* $Header$
*/
#include "stdafx.h"
#include "engine.h"
#include <exec/types.h>
#include <cybergraphics/cybergraphics.h>
#include <proto/cybergraphics.h>
#include "morphos.h"
#include "morphos_scaler.h"
#define GET_RESULT(A, B, C, D) ((A != C || A != D) - (B != C || B != D))
#define INTERPOLATE(A, B) (((A & colorMask) >> 1) + ((B & colorMask) >> 1) + (A & B & lowPixelMask))
#define Q_INTERPOLATE(A, B, C, D) ((A & qcolorMask) >> 2) + ((B & qcolorMask) >> 2) + ((C & qcolorMask) >> 2) + ((D & qcolorMask) >> 2) + ((((A & qlowpixelMask) + (B & qlowpixelMask) + (C & qlowpixelMask) + (D & qlowpixelMask)) >> 2) & qlowpixelMask)
#define SWAP_WORD(word) word = ((word & 0xff) << 8) | (word >> 8)
#define SWAP_LONG(lng) lng = ((lng & 0xff) << 24) | ((lng & 0xff00) << 8) | ((lng & 0xff0000) >> 8) | (lng >> 24)
MorphOSScaler::GfxScaler MorphOSScaler::ScummScalers[11]
= { { "none", "normal", ST_NONE },
{ "Point", "2x", ST_POINT },
{ "AdvMame2x", "advmame2x", ST_ADVMAME2X },
{ "SuperEagle", "supereagle", ST_SUPEREAGLE },
{ "Super2xSaI", "super2xsai", ST_SUPER2XSAI },
{ NULL, NULL, ST_INVALID },
{ NULL, NULL, ST_INVALID },
{ NULL, NULL, ST_INVALID },
{ NULL, NULL, ST_INVALID },
{ NULL, NULL, ST_INVALID },
// This is the end marker ... do not assign a scaler to it!
{ NULL, NULL, ST_INVALID }
};
MorphOSScaler::MorphOSScaler(APTR buffer, int width, int height, ULONG *col_table, UWORD *col_table16, BitMap *bmap)
{
dest = NULL;
handle = NULL;
Buffer = buffer;
BufferWidth = width;
BufferHeight = height;
ScummColors = col_table;
ScummColors16 = col_table16;
/* Initialize scaling stuff */
int minr, ming, minb;
ULONG depth = GetCyberMapAttr(bmap, CYBRMATTR_DEPTH);
if (depth > 16)
{
minr = 1 << 16;
ming = 1 << 8;
minb = 1;
}
else
{
minr = 1 << ((depth == 15) ? 10 : 11);
ming = 1 << 5;
minb = 1;
}
int pixfmt = GetCyberMapAttr(bmap, CYBRMATTR_PIXFMT);
ScummPCMode = false;
if (pixfmt == PIXFMT_RGB15PC || pixfmt == PIXFMT_BGR15PC ||
pixfmt == PIXFMT_RGB16PC || pixfmt == PIXFMT_BGR16PC ||
pixfmt == PIXFMT_BGRA32)
ScummPCMode = true;
colorMask = (MakeColor(pixfmt, 255, 0, 0) - minr) | (MakeColor(pixfmt, 0, 255, 0) - ming) | (MakeColor(pixfmt, 0, 0, 255) - minb);
lowPixelMask = minr | ming | minb;
qcolorMask = (MakeColor(pixfmt, 255, 0, 0) - 3*minr) | (MakeColor(pixfmt, 0, 255, 0) - 3*ming) | (MakeColor(pixfmt, 0, 0, 255) - 3*minb);
qlowpixelMask = (minr * 3) | (ming * 3) | (minb * 3);
redblueMask = MakeColor(pixfmt, 255, 0, 255);
greenMask = MakeColor(pixfmt, 0, 255, 0);
PixelsPerMask = (depth <= 16) ? 2 : 1;
if (PixelsPerMask == 2)
{
colorMask |= (colorMask << 16);
qcolorMask |= (qcolorMask << 16);
lowPixelMask |= (lowPixelMask << 16);
qlowpixelMask |= (qlowpixelMask << 16);
}
}
MorphOSScaler::~MorphOSScaler()
{
Finish();
}
MorphOSScaler *MorphOSScaler::Create(SCALERTYPE scaler_type, APTR buffer, int width, int height, ULONG *col_table, UWORD *col_table16, BitMap *bmap)
{
MorphOSScaler *new_scaler = NULL;
switch (scaler_type)
{
case ST_POINT:
new_scaler = new PointScaler(buffer, width, height, col_table, col_table16, bmap);
break;
case ST_ADVMAME2X:
new_scaler = new AdvMame2xScaler(buffer, width, height, col_table, col_table16, bmap);
break;
case ST_SUPEREAGLE:
new_scaler = new SuperEagleScaler(buffer, width, height, col_table, col_table16, bmap);
break;
case ST_SUPER2XSAI:
new_scaler = new Super2xSaIScaler(buffer, width, height, col_table, col_table16, bmap);
break;
default:
warning("Invalid scaler requested - falling back to Super2xSaI");
new_scaler = new Super2xSaIScaler(buffer, width, height, col_table, col_table16, bmap);
break;
}
return new_scaler;
}
bool MorphOSScaler::Prepare(BitMap *render_bmap)
{
handle = LockBitMapTags(render_bmap, LBMI_BYTESPERPIX, &dest_bpp,
LBMI_BYTESPERROW, &dest_pitch,
LBMI_BASEADDRESS, &dest,
LBMI_PIXFMT, &dest_pixfmt,
TAG_DONE);
return handle != NULL;
}
void MorphOSScaler::Finish()
{
if (handle)
{
UnLockBitMap(handle);
handle = NULL;
}
}
uint32 MorphOSScaler::MakeColor(int pixfmt, int r, int g, int b)
{
uint32 col = 0;
switch (pixfmt)
{
case PIXFMT_RGB15:
case PIXFMT_RGB15PC:
col = (((r*31)/255) << 10) | (((g*31)/255) << 5) | ((b*31)/255);
break;
case PIXFMT_BGR15:
case PIXFMT_BGR15PC:
col = (((b*31)/255) << 10) | (((g*31)/255) << 5) | ((r*31)/255);
break;
case PIXFMT_RGB16:
case PIXFMT_RGB16PC:
col = (((r*31)/255) << 11) | (((g*63)/255) << 5) | ((b*31)/255);
break;
case PIXFMT_BGR16:
case PIXFMT_BGR16PC:
col = (((b*31)/255) << 11) | (((g*63)/255) << 5) | ((r*31)/255);
break;
case PIXFMT_ARGB32:
case PIXFMT_BGRA32:
col = (r << 16) | (g << 8) | b;
break;
case PIXFMT_RGBA32:
col = (r << 24) | (g << 16) | (b << 8);
break;
case PIXFMT_RGB24:
case PIXFMT_BGR24:
error("The scaling engines do not support 24 bit modes at the moment");
break;
default:
error("Unsupported pixel format: %d. Please contact author at tomjoad@muenster.de", pixfmt);
}
return col;
}
void Super2xSaIScaler::Scale(uint32 src_x, uint32 src_y, uint32 dest_x, uint32 dest_y, uint32 width, uint32 height)
{
unsigned int x, y;
unsigned long color[16];
byte *src;
if (!handle)
return;
src = ((byte *)Buffer)+src_y*BufferWidth+src_x;
/* Point to the first 3 lines. */
src_line[0] = src;
src_line[1] = src;
src_line[2] = src + BufferWidth;
src_line[3] = src + BufferWidth * 2;
dst_line[0] = dest+dest_y*2*dest_pitch+dest_x*2*dest_bpp;
dst_line[1] = dst_line[0]+dest_pitch;
if (PixelsPerMask == 2)
{
byte *sbp;
sbp = src_line[0];
color[0] = ScummColors16[*sbp]; color[1] = color[0]; color[2] = color[0]; color[3] = color[0];
color[4] = color[0]; color[5] = color[0]; color[6] = ScummColors16[*(sbp+1)]; color[7] = ScummColors16[*(sbp+2)];
sbp = src_line[2];
color[8] = ScummColors16[*sbp]; color[9] = color[8]; color[10] = ScummColors16[*(sbp+1)]; color[11] = ScummColors16[*(sbp+2)];
sbp = src_line[3];
color[12] = ScummColors16[*sbp]; color[13] = color[12]; color[14] = ScummColors16[*(sbp+1)]; color[15] = ScummColors16[*(sbp+2)];
}
else
{
byte *lbp;
lbp = src_line[0];
color[0] = ScummColors[*lbp]; color[1] = color[0]; color[2] = color[0]; color[3] = color[0];
color[4] = color[0]; color[5] = color[0]; color[6] = ScummColors[*(lbp+1)]; color[7] = ScummColors[*(lbp+2)];
lbp = src_line[2];
color[8] = ScummColors[*lbp]; color[9] = color[8]; color[10] = ScummColors[*(lbp+1)]; color[11] = ScummColors[*(lbp+2)];
lbp = src_line[3];
color[12] = ScummColors[*lbp]; color[13] = color[12]; color[14] = ScummColors[*(lbp+1)]; color[15] = ScummColors[*(lbp+2)];
}
for (y = 0; y < height; y++)
{
for (x = 0; x < width; x++)
{
unsigned long product1a, product1b, product2a, product2b;
//--------------------------------------- B0 B1 B2 B3 0 1 2 3
// 4 5* 6 S2 -> 4 5* 6 7
// 1 2 3 S1 8 9 10 11
// A0 A1 A2 A3 12 13 14 15
//--------------------------------------
if (color[9] == color[6] && color[5] != color[10])
{
product2b = color[9];
product1b = product2b;
}
else if (color[5] == color[10] && color[9] != color[6])
{
product2b = color[5];
product1b = product2b;
}
else if (color[5] == color[10] && color[9] == color[6])
{
int r = 0;
r += GET_RESULT(color[6], color[5], color[8], color[13]);
r += GET_RESULT(color[6], color[5], color[4], color[1]);
r += GET_RESULT(color[6], color[5], color[14], color[11]);
r += GET_RESULT(color[6], color[5], color[2], color[7]);
if (r > 0)
product1b = color[6];
else if (r < 0)
product1b = color[5];
else
product1b = INTERPOLATE(color[5], color[6]);
product2b = product1b;
}
else
{
if (color[6] == color[10] && color[10] == color[13] && color[9] != color[14] && color[10] != color[12])
product2b = Q_INTERPOLATE(color[10], color[10], color[10], color[9]);
else if (color[5] == color[9] && color[9] == color[14] && color[13] != color[10] && color[9] != color[15])
product2b = Q_INTERPOLATE(color[9], color[9], color[9], color[10]);
else
product2b = INTERPOLATE(color[9], color[10]);
if (color[6] == color[10] && color[6] == color[1] && color[5] != color[2] && color[6] != color[0])
product1b = Q_INTERPOLATE(color[6], color[6], color[6], color[5]);
else if (color[5] == color[9] && color[5] == color[2] && color[1] != color[6] && color[5] != color[3])
product1b = Q_INTERPOLATE(color[6], color[5], color[5], color[5]);
else
product1b = INTERPOLATE(color[5], color[6]);
}
if (color[5] == color[10] && color[9] != color[6] && color[4] == color[5] && color[5] != color[14])
product2a = INTERPOLATE(color[9], color[5]);
else if (color[5] == color[8] && color[6] == color[5] && color[4] != color[9] && color[5] != color[12])
product2a = INTERPOLATE(color[9], color[5]);
else
product2a = color[9];
if (color[9] == color[6] && color[5] != color[10] && color[8] == color[9] && color[9] != color[2])
product1a = INTERPOLATE(color[9], color[5]);
else if (color[4] == color[9] && color[10] == color[9] && color[8] != color[5] && color[9] != color[0])
product1a = INTERPOLATE(color[9], color[5]);
else
product1a = color[5];
if (PixelsPerMask == 2)
{
if (ScummPCMode)
{
SWAP_WORD(product1a);
SWAP_WORD(product1b);
SWAP_WORD(product2a);
SWAP_WORD(product2b);
}
*((unsigned long *) (&dst_line[0][x * 4])) = (product1a << 16) | product1b;
*((unsigned long *) (&dst_line[1][x * 4])) = (product2a << 16) | product2b;
}
else
{
if (ScummPCMode)
{
SWAP_LONG(product1a);
SWAP_LONG(product1b);
SWAP_LONG(product2a);
SWAP_LONG(product2b);
}
*((unsigned long *) (&dst_line[0][x * 8])) = product1a;
*((unsigned long *) (&dst_line[0][x * 8 + 4])) = product1b;
*((unsigned long *) (&dst_line[1][x * 8])) = product2a;
*((unsigned long *) (&dst_line[1][x * 8 + 4])) = product2b;
}
/* Move color matrix forward */
color[0] = color[1]; color[4] = color[5]; color[8] = color[9]; color[12] = color[13];
color[1] = color[2]; color[5] = color[6]; color[9] = color[10]; color[13] = color[14];
color[2] = color[3]; color[6] = color[7]; color[10] = color[11]; color[14] = color[15];
if (src_x+x < BufferWidth-3)
{
x += 3;
if (PixelsPerMask == 2)
{
color[3] = ScummColors16[*(src_line[0] + x) ];
color[7] = ScummColors16[*(src_line[1] + x) ];
color[11] = ScummColors16[*(src_line[2] + x) ];
color[15] = ScummColors16[*(src_line[3] + x) ];
}
else
{
color[3] = ScummColors[*(src_line[0] + x)];
color[7] = ScummColors[*(src_line[1] + x)];
color[11] = ScummColors[*(src_line[2] + x)];
color[15] = ScummColors[*(src_line[3] + x)];
}
x -= 3;
}
}
/* We're done with one line, so we shift the source lines up */
src_line[0] = src_line[1];
src_line[1] = src_line[2];
src_line[2] = src_line[3];
/* Read next line */
if (src_y + y + 3 >= BufferHeight)
src_line[3] = src_line[2];
else
src_line[3] = src_line[2] + BufferWidth;
/* Then shift the color matrix up */
if (PixelsPerMask == 2)
{
byte *sbp;
sbp = src_line[0];
color[0] = ScummColors16[*sbp]; color[1] = color[0]; color[2] = ScummColors16[ *(sbp + 1) ]; color[3] = ScummColors16[*(sbp + 2)];
sbp = src_line[1];
color[4] = ScummColors16[*sbp]; color[5] = color[4]; color[6] = ScummColors16[ *(sbp + 1) ]; color[7] = ScummColors16[*(sbp + 2)];
sbp = src_line[2];
color[8] = ScummColors16[*sbp]; color[9] = color[8]; color[10] = ScummColors16[ *(sbp + 1) ]; color[11] = ScummColors16[*(sbp + 2)];
sbp = src_line[3];
color[12] = ScummColors16[*sbp]; color[13] = color[12]; color[14] = ScummColors16[ *(sbp + 1) ]; color[15] = ScummColors16[*(sbp + 2)];
if (src_x + x > 0)
{
color[0] = ScummColors16[src_line[0][-1]];
color[4] = ScummColors16[src_line[1][-1]];
color[8] = ScummColors16[src_line[2][-1]];
color[12] = ScummColors16[src_line[3][-1]];
}
}
else
{
byte *lbp;
lbp = src_line[0];
color[0] = ScummColors[*lbp]; color[1] = color[0]; color[2] = ScummColors[ *(lbp + 1) ]; color[3] = ScummColors[*(lbp+2)];
lbp = src_line[1];
color[4] = ScummColors[*lbp]; color[5] = color[4]; color[6] = ScummColors[ *(lbp + 1) ]; color[7] = ScummColors[*(lbp+2)];
lbp = src_line[2];
color[8] = ScummColors[*lbp]; color[9] = color[8]; color[10] = ScummColors[ *(lbp + 1) ]; color[11] = ScummColors[*(lbp+2)];
lbp = src_line[3];
color[12] = ScummColors[*lbp]; color[13] = color[12]; color[14] = ScummColors[ *(lbp + 1) ]; color[15] = ScummColors[*(lbp+2)];
}
if (src_y + y < BufferHeight - 1)
{
dst_line[0] = dst_line[1]+dest_pitch;
dst_line[1] = dst_line[0]+dest_pitch;
}
}
}
void SuperEagleScaler::Scale(uint32 src_x, uint32 src_y, uint32 dest_x, uint32 dest_y, uint32 width, uint32 height)
{
unsigned int x, y;
unsigned long color[12];
byte *src;
if (!handle)
return;
src = (byte *)Buffer+src_y*BufferWidth+src_x;
/* Point to the first 3 lines. */
src_line[0] = src;
src_line[1] = src;
src_line[2] = src + BufferWidth;
src_line[3] = src + BufferWidth * 2;
dst_line[0] = dest+dest_y*2*dest_pitch+dest_x*2*dest_bpp;
dst_line[1] = dst_line[0]+dest_pitch;
x = 0, y = 0;
if (PixelsPerMask == 2)
{
byte *sbp;
sbp = src_line[0];
color[0] = ScummColors16[*sbp]; color[1] = color[0]; color[2] = color[0]; color[3] = color[0];
color[4] = ScummColors16[*(sbp+1)]; color[5] = ScummColors16[*(sbp+2)];
sbp = src_line[2];
color[6] = ScummColors16[*sbp]; color[7] = color[6]; color[8] = ScummColors16[*(sbp+1)]; color[9] = ScummColors16[*(sbp+2)];
sbp = src_line[3];
color[10] = ScummColors16[*sbp]; color[11] = ScummColors16[*(sbp+1)];
}
else
{
byte *lbp;
lbp = src_line[0];
color[0] = ScummColors[*lbp]; color[1] = color[0]; color[2] = color[0]; color[3] = color[0];
color[4] = ScummColors[*(lbp+1)]; color[5] = ScummColors[*(lbp+2)];
lbp = src_line[2];
color[6] = ScummColors[*lbp]; color[7] = color[6]; color[8] = ScummColors[*(lbp+1)]; color[9] = ScummColors[*(lbp+2)];
lbp = src_line[3];
color[10] = ScummColors[*lbp]; color[11] = ScummColors[*(lbp+1)];
}
for (y = 0; y < height; y++)
{
/* Todo: x = width - 2, x = width - 1 */
for (x = 0; x < width; x++)
{
unsigned long product1a, product1b, product2a, product2b;
//--------------------------------------- B1 B2 0 1
// 4 5 6 S2 -> 2 3 4 5
// 1 2 3 S1 6 7 8 9
// A1 A2 10 11
if (color[7] == color[4] && color[3] != color[8])
{
product1b = product2a = color[7];
if ((color[6] == color[7]) || (color[4] == color[1]))
product1a = INTERPOLATE(color[7], INTERPOLATE(color[7], color[3]));
else
product1a = INTERPOLATE(color[3], color[4]);
if ((color[4] == color[5]) || (color[7] == color[10]))
product2b = INTERPOLATE(color[7], INTERPOLATE(color[7], color[8]));
else
product2b = INTERPOLATE(color[7], color[8]);
}
else if (color[3] == color[8] && color[7] != color[4])
{
product2b = product1a = color[3];
if ((color[0] == color[3]) || (color[5] == color[9]))
product1b = INTERPOLATE(color[3], INTERPOLATE(color[3], color[4]));
else
product1b = INTERPOLATE(color[3], color[1]);
if ((color[8] == color[11]) || (color[2] == color[3]))
product2a = INTERPOLATE(color[3], INTERPOLATE(color[3], color[2]));
else
product2a = INTERPOLATE(color[7], color[8]);
}
else if (color[3] == color[8] && color[7] == color[4])
{
register int r = 0;
r += GET_RESULT(color[4], color[3], color[6], color[10]);
r += GET_RESULT(color[4], color[3], color[2], color[0]);
r += GET_RESULT(color[4], color[3], color[11], color[9]);
r += GET_RESULT(color[4], color[3], color[1], color[5]);
if (r > 0)
{
product1b = product2a = color[7];
product1a = product2b = INTERPOLATE(color[3], color[4]);
}
else if (r < 0)
{
product2b = product1a = color[3];
product1b = product2a = INTERPOLATE(color[3], color[4]);
}
else
{
product2b = product1a = color[3];
product1b = product2a = color[7];
}
}
else
{
product2b = product1a = INTERPOLATE(color[7], color[4]);
product2b = Q_INTERPOLATE(color[8], color[8], color[8], product2b);
product1a = Q_INTERPOLATE(color[3], color[3], color[3], product1a);
product2a = product1b = INTERPOLATE(color[3], color[8]);
product2a = Q_INTERPOLATE(color[7], color[7], color[7], product2a);
product1b = Q_INTERPOLATE(color[4], color[4], color[4], product1b);
}
if (PixelsPerMask == 2)
{
if (ScummPCMode)
{
SWAP_WORD(product1a);
SWAP_WORD(product1b);
SWAP_WORD(product2a);
SWAP_WORD(product2b);
}
*((unsigned long *) (&dst_line[0][x * 4])) = (product1a << 16) | product1b;
*((unsigned long *) (&dst_line[1][x * 4])) = (product2a << 16) | product2b;
}
else
{
if (ScummPCMode)
{
SWAP_LONG(product1a);
SWAP_LONG(product1b);
SWAP_LONG(product2a);
SWAP_LONG(product2b);
}
*((unsigned long *) (&dst_line[0][x * 8])) = product1a;
*((unsigned long *) (&dst_line[0][x * 8 + 4])) = product1b;
*((unsigned long *) (&dst_line[1][x * 8])) = product2a;
*((unsigned long *) (&dst_line[1][x * 8 + 4])) = product2b;
}
/* Move color matrix forward */
color[0] = color[1];
color[2] = color[3]; color[3] = color[4]; color[4] = color[5];
color[6] = color[7]; color[7] = color[8]; color[8] = color[9];
color[10] = color[11];
if (src_x+x < BufferWidth - 2)
{
x += 2;
if (PixelsPerMask == 2)
{
color[1] = ScummColors16[ *(src_line[0] + x) ];
if (src_x+x < BufferWidth-1)
{
color[5] = ScummColors16[*(src_line[1]+x+1)];
color[9] = ScummColors16[*(src_line[2]+x+1)];
}
color[11] = ScummColors16[*(src_line[3]+x)];
}
else
{
color[1] = ScummColors[*(src_line[0]+x)];
if (src_x+x < BufferWidth-1)
{
color[5] = ScummColors[*(src_line[1]+x+1)];
color[9] = ScummColors[ *(src_line[2]+x+1)];
}
color[11] = ScummColors[*(src_line[3]+x)];
}
x -= 2;
}
}
/* We're done with one line, so we shift the source lines up */
src_line[0] = src_line[1];
src_line[1] = src_line[2];
src_line[2] = src_line[3];
/* Read next line */
if (src_y+y+3 >= BufferHeight)
src_line[3] = src_line[2];
else
src_line[3] = src_line[2] + BufferWidth;
/* Then shift the color matrix up */
if (PixelsPerMask == 2)
{
byte *sbp;
sbp = src_line[0];
color[0] = ScummColors16[*sbp]; color[1] = ScummColors16[*(sbp+1)];
sbp = src_line[1];
color[2] = ScummColors16[*sbp]; color[3] = color[2]; color[4] = ScummColors16[*(sbp+1)]; color[5] = ScummColors16[*(sbp+2)];
sbp = src_line[2];
color[6] = ScummColors16[*sbp]; color[7] = color[6]; color[8] = ScummColors16[*(sbp+1)]; color[9] = ScummColors16[*(sbp+2)];
sbp = src_line[3];
color[10] = ScummColors16[*sbp]; color[11] = ScummColors16[*(sbp+1)];
}
else
{
byte *lbp;
lbp = src_line[0];
color[0] = ScummColors[*lbp]; color[1] = ScummColors[*(lbp+1)];
lbp = src_line[1];
color[2] = ScummColors[*lbp]; color[3] = color[2]; color[4] = ScummColors[*(lbp+1)]; color[5] = ScummColors[*(lbp+2)];
lbp = src_line[2];
color[6] = ScummColors[*lbp]; color[7] = color[6]; color[8] = ScummColors[*(lbp+1)]; color[9] = ScummColors[*(lbp+2)];
lbp = src_line[3];
color[10] = ScummColors[*lbp]; color[11] = ScummColors[*(lbp+1)];
}
if (src_y + y < BufferHeight - 1)
{
dst_line[0] = dst_line[1]+dest_pitch;
dst_line[1] = dst_line[0]+dest_pitch;
}
}
}
void AdvMame2xScaler::Scale(uint32 src_x, uint32 src_y, uint32 dest_x, uint32 dest_y, uint32 width, uint32 height)
{
if (!handle)
return;
byte *src = (byte *)Buffer+src_y*BufferWidth+src_x;
src_line[0] = src;
src_line[1] = src;
src_line[2] = src + BufferWidth;
dst_line[0] = dest+dest_y*2*dest_pitch+dest_x*2*dest_bpp;
dst_line[1] = dst_line[0]+dest_pitch;
for (uint32 y = 0; y < height; y++)
{
for (uint32 x = 0; x < width; x++)
{
uint32 B, D, E, F, H;
if (PixelsPerMask == 2)
{
// short A = *(src + i - nextlineSrc - 1);
B = ScummColors16[src_line[0][x]];
// short C = *(src + i - nextlineSrc + 1);
D = ScummColors16[src_line[1][x-1]];
E = ScummColors16[src_line[1][x]];
F = ScummColors16[src_line[1][x+1]];
// short G = *(src + i + nextlineSrc - 1);
H = ScummColors16[src_line[2][x]];
// short I = *(src + i + nextlineSrc + 1);
}
else
{
// short A = *(src + i - nextlineSrc - 1);
B = ScummColors[src_line[0][x]];
// short C = *(src + i - nextlineSrc + 1);
D = ScummColors[src_line[1][x-1]];
E = ScummColors[src_line[1][x]];
F = ScummColors[src_line[1][x+1]];
// short G = *(src + i + nextlineSrc - 1);
H = ScummColors[src_line[2][x]];
// short I = *(src + i + nextlineSrc + 1);
}
if (PixelsPerMask == 2)
{
if (ScummPCMode)
{
SWAP_WORD(B);
SWAP_WORD(D);
SWAP_WORD(E);
SWAP_WORD(F);
SWAP_WORD(H);
}
*((unsigned long *) (&dst_line[0][x * 4])) = ((D == B && B != F && D != H ? D : E) << 16) | (B == F && B != D && F != H ? F : E);
*((unsigned long *) (&dst_line[1][x * 4])) = ((D == H && D != B && H != F ? D : E) << 16) | (H == F && D != H && B != F ? F : E);
}
else
{
if (ScummPCMode)
{
SWAP_LONG(B);
SWAP_LONG(D);
SWAP_LONG(E);
SWAP_LONG(F);
SWAP_LONG(H);
}
*((unsigned long *) (&dst_line[0][x * 8])) = D == B && B != F && D != H ? D : E;
*((unsigned long *) (&dst_line[0][x * 8 + 4])) = B == F && B != D && F != H ? F : E;
*((unsigned long *) (&dst_line[1][x * 8])) = D == H && D != B && H != F ? D : E;
*((unsigned long *) (&dst_line[1][x * 8 + 4])) = H == F && D != H && B != F ? F : E;
}
}
src_line[0] = src_line[1];
src_line[1] = src_line[2];
if (src_y+y+2 >= BufferHeight)
src_line[2] = src_line[1];
else
src_line[2] = src_line[1] + BufferWidth;
if (src_y+y < BufferHeight-1)
{
dst_line[0] = dst_line[1]+dest_pitch;
dst_line[1] = dst_line[0]+dest_pitch;
}
}
}
void PointScaler::Scale(uint32 src_x, uint32 src_y, uint32 dest_x, uint32 dest_y, uint32 width, uint32 height)
{
byte *src;
uint32 color;
uint32 r, g, b;
uint32 x, y;
if (!handle)
return;
src = (byte *)Buffer+src_y*BufferWidth+src_x;
dst_line[0] = dest+dest_y*2*dest_pitch+dest_x*2*dest_bpp;
dst_line[1] = dst_line[0]+dest_pitch;
for (y = 0; y < height; y++)
{
for (x = 0; x < width; x++)
{
r = (ScummColors[*(src+x)] >> 16) & 0xff;
g = (ScummColors[*(src+x)] >> 8) & 0xff;
b = ScummColors[*(src+x)] & 0xff;
color = MakeColor(dest_pixfmt, r, g, b);
if (PixelsPerMask == 2)
{
if (ScummPCMode)
SWAP_WORD(color);
*((unsigned long *) (&dst_line[0][x * 4])) = (color << 16) | color;
*((unsigned long *) (&dst_line[1][x * 4])) = (color << 16) | color;
}
else
{
if (ScummPCMode)
SWAP_LONG(color);
*((unsigned long *) (&dst_line[0][x * 8])) = color;
*((unsigned long *) (&dst_line[0][x * 8 + 4])) = color;
*((unsigned long *) (&dst_line[1][x * 8])) = color;
*((unsigned long *) (&dst_line[1][x * 8 + 4])) = color;
}
}
src += BufferWidth;
if (src_y+y < BufferHeight-1)
{
dst_line[0] = dst_line[1]+dest_pitch;
dst_line[1] = dst_line[0]+dest_pitch;
}
}
}
SCALERTYPE MorphOSScaler::FindByName(const char *ScalerName)
{
int scaler = 0;
while (ScummScalers[scaler].gs_Name)
{
if (!stricmp(ScalerName, ScummScalers[scaler].gs_Name))
return ScummScalers[scaler].gs_Type;
scaler++;
}
if (ScummScalers[scaler].gs_Name == NULL)
{
puts("Invalid scaler name. Please use one of the following:");
for (scaler = 0; ScummScalers[scaler].gs_Name != NULL; scaler++)
printf(" %s\n", ScummScalers[scaler].gs_Name);
}
return ST_INVALID;
}
SCALERTYPE MorphOSScaler::FindByIndex(int index)
{
if (index >= 0 && index < 10 && ScummScalers[index].gs_Name)
return ScummScalers[index].gs_Type;
return ST_INVALID;
}
const char *MorphOSScaler::GetParamName(SCALERTYPE type)
{
int scaler = 0;
while (ScummScalers[scaler].gs_Name)
{
if (ScummScalers[scaler].gs_Type == type)
return ScummScalers[scaler].gs_ParamName;
scaler++;
}
return NULL;
}
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