2018-11-15 23:31:39 +00:00
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/*****************************************************************************\
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Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
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This file is licensed under the Snes9x License.
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For further information, consult the LICENSE file in the root directory.
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\*****************************************************************************/
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2010-09-25 15:46:12 +00:00
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2019-05-04 03:58:53 +00:00
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#include "tileimpl.h"
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2019-04-02 15:29:45 +00:00
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2019-05-04 03:58:53 +00:00
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using namespace TileImpl;
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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namespace {
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2019-04-02 08:11:03 +00:00
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2019-04-02 15:29:45 +00:00
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uint32 pixbit[8][16];
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uint8 hrbit_odd[256];
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uint8 hrbit_even[256];
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2019-03-31 15:41:03 +00:00
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2019-04-02 15:29:45 +00:00
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// Here are the tile converters, selected by S9xSelectTileConverter().
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// Really, except for the definition of DOBIT and the number of times it is called, they're all the same.
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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#define DOBIT(n, i) \
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if ((pix = *(tp + (n)))) \
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{ \
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p1 |= pixbit[(i)][pix >> 4]; \
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p2 |= pixbit[(i)][pix & 0xf]; \
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}
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uint8 ConvertTile2 (uint8 *pCache, uint32 TileAddr, uint32)
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2010-09-25 15:46:12 +00:00
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{
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2019-04-02 15:29:45 +00:00
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uint8 *tp = &Memory.VRAM[TileAddr];
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uint32 *p = (uint32 *) pCache;
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uint32 non_zero = 0;
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uint8 line;
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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for (line = 8; line != 0; line--, tp += 2)
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{
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uint32 p1 = 0;
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uint32 p2 = 0;
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uint8 pix;
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DOBIT( 0, 0);
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DOBIT( 1, 1);
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*p++ = p1;
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*p++ = p2;
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non_zero |= p1 | p2;
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}
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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return (non_zero ? TRUE : BLANK_TILE);
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2010-09-25 15:46:12 +00:00
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}
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2019-04-02 15:29:45 +00:00
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uint8 ConvertTile4 (uint8 *pCache, uint32 TileAddr, uint32)
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2010-09-25 15:46:12 +00:00
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{
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2019-04-02 15:29:45 +00:00
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uint8 *tp = &Memory.VRAM[TileAddr];
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uint32 *p = (uint32 *) pCache;
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uint32 non_zero = 0;
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uint8 line;
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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for (line = 8; line != 0; line--, tp += 2)
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{
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uint32 p1 = 0;
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uint32 p2 = 0;
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uint8 pix;
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DOBIT( 0, 0);
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DOBIT( 1, 1);
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DOBIT(16, 2);
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DOBIT(17, 3);
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*p++ = p1;
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*p++ = p2;
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non_zero |= p1 | p2;
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}
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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return (non_zero ? TRUE : BLANK_TILE);
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2010-09-25 15:46:12 +00:00
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}
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2019-04-02 15:29:45 +00:00
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uint8 ConvertTile8 (uint8 *pCache, uint32 TileAddr, uint32)
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2010-09-25 15:46:12 +00:00
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{
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2019-04-02 15:29:45 +00:00
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uint8 *tp = &Memory.VRAM[TileAddr];
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uint32 *p = (uint32 *) pCache;
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uint32 non_zero = 0;
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uint8 line;
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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for (line = 8; line != 0; line--, tp += 2)
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{
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uint32 p1 = 0;
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uint32 p2 = 0;
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uint8 pix;
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DOBIT( 0, 0);
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DOBIT( 1, 1);
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DOBIT(16, 2);
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DOBIT(17, 3);
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DOBIT(32, 4);
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DOBIT(33, 5);
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DOBIT(48, 6);
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DOBIT(49, 7);
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*p++ = p1;
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*p++ = p2;
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non_zero |= p1 | p2;
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}
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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return (non_zero ? TRUE : BLANK_TILE);
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2010-09-25 15:46:12 +00:00
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}
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2019-04-02 15:29:45 +00:00
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#undef DOBIT
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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#define DOBIT(n, i) \
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if ((pix = hrbit_odd[*(tp1 + (n))])) \
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p1 |= pixbit[(i)][pix]; \
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if ((pix = hrbit_odd[*(tp2 + (n))])) \
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p2 |= pixbit[(i)][pix];
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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uint8 ConvertTile2h_odd (uint8 *pCache, uint32 TileAddr, uint32 Tile)
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2010-09-25 15:46:12 +00:00
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{
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2019-04-02 15:29:45 +00:00
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uint8 *tp1 = &Memory.VRAM[TileAddr], *tp2;
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uint32 *p = (uint32 *) pCache;
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uint32 non_zero = 0;
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uint8 line;
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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if (Tile == 0x3ff)
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tp2 = tp1 - (0x3ff << 4);
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else
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tp2 = tp1 + (1 << 4);
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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for (line = 8; line != 0; line--, tp1 += 2, tp2 += 2)
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{
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uint32 p1 = 0;
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uint32 p2 = 0;
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uint8 pix;
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DOBIT( 0, 0);
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DOBIT( 1, 1);
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*p++ = p1;
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*p++ = p2;
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non_zero |= p1 | p2;
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}
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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return (non_zero ? TRUE : BLANK_TILE);
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2010-09-25 15:46:12 +00:00
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}
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2019-04-02 15:29:45 +00:00
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uint8 ConvertTile4h_odd (uint8 *pCache, uint32 TileAddr, uint32 Tile)
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2010-09-25 15:46:12 +00:00
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{
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2019-04-02 15:29:45 +00:00
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uint8 *tp1 = &Memory.VRAM[TileAddr], *tp2;
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uint32 *p = (uint32 *) pCache;
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uint32 non_zero = 0;
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uint8 line;
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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if (Tile == 0x3ff)
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tp2 = tp1 - (0x3ff << 5);
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else
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tp2 = tp1 + (1 << 5);
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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for (line = 8; line != 0; line--, tp1 += 2, tp2 += 2)
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{
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uint32 p1 = 0;
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uint32 p2 = 0;
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uint8 pix;
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DOBIT( 0, 0);
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DOBIT( 1, 1);
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DOBIT(16, 2);
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DOBIT(17, 3);
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*p++ = p1;
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*p++ = p2;
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non_zero |= p1 | p2;
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}
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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return (non_zero ? TRUE : BLANK_TILE);
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}
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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#undef DOBIT
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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#define DOBIT(n, i) \
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if ((pix = hrbit_even[*(tp1 + (n))])) \
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p1 |= pixbit[(i)][pix]; \
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if ((pix = hrbit_even[*(tp2 + (n))])) \
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p2 |= pixbit[(i)][pix];
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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uint8 ConvertTile2h_even (uint8 *pCache, uint32 TileAddr, uint32 Tile)
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2010-09-25 15:46:12 +00:00
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{
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2019-04-02 15:29:45 +00:00
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uint8 *tp1 = &Memory.VRAM[TileAddr], *tp2;
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uint32 *p = (uint32 *) pCache;
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uint32 non_zero = 0;
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uint8 line;
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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if (Tile == 0x3ff)
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tp2 = tp1 - (0x3ff << 4);
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else
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tp2 = tp1 + (1 << 4);
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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for (line = 8; line != 0; line--, tp1 += 2, tp2 += 2)
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{
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uint32 p1 = 0;
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uint32 p2 = 0;
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uint8 pix;
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DOBIT( 0, 0);
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DOBIT( 1, 1);
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*p++ = p1;
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*p++ = p2;
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non_zero |= p1 | p2;
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}
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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return (non_zero ? TRUE : BLANK_TILE);
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2010-09-25 15:46:12 +00:00
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}
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2019-04-02 15:29:45 +00:00
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uint8 ConvertTile4h_even (uint8 *pCache, uint32 TileAddr, uint32 Tile)
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{
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uint8 *tp1 = &Memory.VRAM[TileAddr], *tp2;
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uint32 *p = (uint32 *) pCache;
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uint32 non_zero = 0;
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uint8 line;
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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if (Tile == 0x3ff)
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tp2 = tp1 - (0x3ff << 5);
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else
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tp2 = tp1 + (1 << 5);
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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for (line = 8; line != 0; line--, tp1 += 2, tp2 += 2)
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{
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uint32 p1 = 0;
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uint32 p2 = 0;
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uint8 pix;
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DOBIT( 0, 0);
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DOBIT( 1, 1);
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DOBIT(16, 2);
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DOBIT(17, 3);
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*p++ = p1;
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*p++ = p2;
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non_zero |= p1 | p2;
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}
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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return (non_zero ? TRUE : BLANK_TILE);
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}
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2010-09-25 15:46:12 +00:00
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2019-04-02 15:29:45 +00:00
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#undef DOBIT
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} // anonymous namespace
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void S9xInitTileRenderer (void)
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{
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int i;
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for (i = 0; i < 16; i++)
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{
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uint32 b = 0;
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#ifdef LSB_FIRST
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if (i & 8)
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b |= 1;
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if (i & 4)
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b |= 1 << 8;
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if (i & 2)
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b |= 1 << 16;
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if (i & 1)
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b |= 1 << 24;
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#else
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if (i & 8)
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b |= 1 << 24;
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if (i & 4)
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b |= 1 << 16;
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if (i & 2)
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b |= 1 << 8;
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if (i & 1)
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b |= 1;
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#endif
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for (uint8 bitshift = 0; bitshift < 8; bitshift++)
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pixbit[bitshift][i] = b << bitshift;
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}
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for (i = 0; i < 256; i++)
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{
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uint8 m = 0;
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uint8 s = 0;
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if (i & 0x80)
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s |= 8;
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if (i & 0x40)
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m |= 8;
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if (i & 0x20)
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s |= 4;
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if (i & 0x10)
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m |= 4;
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if (i & 0x08)
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s |= 2;
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if (i & 0x04)
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m |= 2;
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if (i & 0x02)
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s |= 1;
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if (i & 0x01)
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m |= 1;
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hrbit_odd[i] = m;
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hrbit_even[i] = s;
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}
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}
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// Functions to select which converter and renderer to use.
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void S9xSelectTileRenderers (int BGMode, bool8 sub, bool8 obj)
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{
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void (**DT) (uint32, uint32, uint32, uint32);
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void (**DCT) (uint32, uint32, uint32, uint32, uint32, uint32);
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void (**DMP) (uint32, uint32, uint32, uint32, uint32, uint32);
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void (**DB) (uint32, uint32, uint32);
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void (**DM7BG1) (uint32, uint32, int);
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void (**DM7BG2) (uint32, uint32, int);
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bool8 M7M1, M7M2;
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M7M1 = PPU.BGMosaic[0] && PPU.Mosaic > 1;
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M7M2 = PPU.BGMosaic[1] && PPU.Mosaic > 1;
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bool8 interlace = obj ? FALSE : IPPU.Interlace;
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bool8 hires = !sub && (BGMode == 5 || BGMode == 6 || IPPU.PseudoHires);
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if (!IPPU.DoubleWidthPixels) // normal width
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{
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DT = Renderers<DrawTile16, Normal1x1>::Functions;
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DCT = Renderers<DrawClippedTile16, Normal1x1>::Functions;
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DMP = Renderers<DrawMosaicPixel16, Normal1x1>::Functions;
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DB = Renderers<DrawBackdrop16, Normal1x1>::Functions;
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DM7BG1 = M7M1 ? Renderers<DrawMode7MosaicBG1, Normal1x1>::Functions : Renderers<DrawMode7BG1, Normal1x1>::Functions;
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DM7BG2 = M7M2 ? Renderers<DrawMode7MosaicBG2, Normal1x1>::Functions : Renderers<DrawMode7BG2, Normal1x1>::Functions;
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GFX.LinesPerTile = 8;
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}
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else if(hires) // hires double width
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{
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if (interlace)
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{
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DT = Renderers<DrawTile16, HiresInterlace>::Functions;
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DCT = Renderers<DrawClippedTile16, HiresInterlace>::Functions;
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DMP = Renderers<DrawMosaicPixel16, HiresInterlace>::Functions;
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DB = Renderers<DrawBackdrop16, Hires>::Functions;
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DM7BG1 = M7M1 ? Renderers<DrawMode7MosaicBG1, Hires>::Functions : Renderers<DrawMode7BG1, Hires>::Functions;
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DM7BG2 = M7M2 ? Renderers<DrawMode7MosaicBG2, Hires>::Functions : Renderers<DrawMode7BG2, Hires>::Functions;
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GFX.LinesPerTile = 4;
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}
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else
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{
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DT = Renderers<DrawTile16, Hires>::Functions;
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DCT = Renderers<DrawClippedTile16, Hires>::Functions;
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DMP = Renderers<DrawMosaicPixel16, Hires>::Functions;
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DB = Renderers<DrawBackdrop16, Hires>::Functions;
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DM7BG1 = M7M1 ? Renderers<DrawMode7MosaicBG1, Hires>::Functions : Renderers<DrawMode7BG1, Hires>::Functions;
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DM7BG2 = M7M2 ? Renderers<DrawMode7MosaicBG2, Hires>::Functions : Renderers<DrawMode7BG2, Hires>::Functions;
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GFX.LinesPerTile = 8;
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}
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}
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else // normal double width
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{
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if (interlace)
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{
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DT = Renderers<DrawTile16, Interlace>::Functions;
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DCT = Renderers<DrawClippedTile16, Interlace>::Functions;
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DMP = Renderers<DrawMosaicPixel16, Interlace>::Functions;
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DB = Renderers<DrawBackdrop16, Normal2x1>::Functions;
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DM7BG1 = M7M1 ? Renderers<DrawMode7MosaicBG1, Normal2x1>::Functions : Renderers<DrawMode7BG1, Normal2x1>::Functions;
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DM7BG2 = M7M2 ? Renderers<DrawMode7MosaicBG2, Normal2x1>::Functions : Renderers<DrawMode7BG2, Normal2x1>::Functions;
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GFX.LinesPerTile = 4;
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}
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else
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{
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DT = Renderers<DrawTile16, Normal2x1>::Functions;
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DCT = Renderers<DrawClippedTile16, Normal2x1>::Functions;
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DMP = Renderers<DrawMosaicPixel16, Normal2x1>::Functions;
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DB = Renderers<DrawBackdrop16, Normal2x1>::Functions;
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DM7BG1 = M7M1 ? Renderers<DrawMode7MosaicBG1, Normal2x1>::Functions : Renderers<DrawMode7BG1, Normal2x1>::Functions;
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DM7BG2 = M7M2 ? Renderers<DrawMode7MosaicBG2, Normal2x1>::Functions : Renderers<DrawMode7BG2, Normal2x1>::Functions;
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GFX.LinesPerTile = 8;
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}
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}
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GFX.DrawTileNomath = DT[0];
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GFX.DrawClippedTileNomath = DCT[0];
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GFX.DrawMosaicPixelNomath = DMP[0];
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GFX.DrawBackdropNomath = DB[0];
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GFX.DrawMode7BG1Nomath = DM7BG1[0];
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GFX.DrawMode7BG2Nomath = DM7BG2[0];
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2019-03-31 15:41:03 +00:00
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2019-04-02 15:29:45 +00:00
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int i;
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if (!Settings.Transparency)
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i = 0;
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else
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{
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i = (Memory.FillRAM[0x2131] & 0x80) ? 4 : 1;
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if (Memory.FillRAM[0x2131] & 0x40)
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{
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i++;
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if (Memory.FillRAM[0x2130] & 2)
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i++;
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}
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if (IPPU.MaxBrightness != 0xf)
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{
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if (i == 1)
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i = 7;
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else if (i == 3)
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i = 8;
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2019-03-31 15:41:03 +00:00
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}
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2019-04-02 15:29:45 +00:00
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2010-09-25 15:46:12 +00:00
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}
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2019-04-02 15:29:45 +00:00
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GFX.DrawTileMath = DT[i];
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GFX.DrawClippedTileMath = DCT[i];
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GFX.DrawMosaicPixelMath = DMP[i];
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GFX.DrawBackdropMath = DB[i];
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GFX.DrawMode7BG1Math = DM7BG1[i];
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GFX.DrawMode7BG2Math = DM7BG2[i];
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}
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void S9xSelectTileConverter (int depth, bool8 hires, bool8 sub, bool8 mosaic)
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{
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switch (depth)
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{
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case 8:
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BG.ConvertTile = BG.ConvertTileFlip = ConvertTile8;
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BG.Buffer = BG.BufferFlip = IPPU.TileCache[TILE_8BIT];
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BG.Buffered = BG.BufferedFlip = IPPU.TileCached[TILE_8BIT];
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BG.TileShift = 6;
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BG.PaletteShift = 0;
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BG.PaletteMask = 0;
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BG.DirectColourMode = Memory.FillRAM[0x2130] & 1;
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break;
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case 4:
|
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if (hires)
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{
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if (sub || mosaic)
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{
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BG.ConvertTile = ConvertTile4h_even;
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BG.Buffer = IPPU.TileCache[TILE_4BIT_EVEN];
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BG.Buffered = IPPU.TileCached[TILE_4BIT_EVEN];
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BG.ConvertTileFlip = ConvertTile4h_odd;
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BG.BufferFlip = IPPU.TileCache[TILE_4BIT_ODD];
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|
BG.BufferedFlip = IPPU.TileCached[TILE_4BIT_ODD];
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|
}
|
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|
else
|
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|
|
{
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|
|
BG.ConvertTile = ConvertTile4h_odd;
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BG.Buffer = IPPU.TileCache[TILE_4BIT_ODD];
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BG.Buffered = IPPU.TileCached[TILE_4BIT_ODD];
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BG.ConvertTileFlip = ConvertTile4h_even;
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BG.BufferFlip = IPPU.TileCache[TILE_4BIT_EVEN];
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|
BG.BufferedFlip = IPPU.TileCached[TILE_4BIT_EVEN];
|
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|
|
}
|
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|
}
|
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|
else
|
|
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|
|
{
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|
|
BG.ConvertTile = BG.ConvertTileFlip = ConvertTile4;
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|
|
BG.Buffer = BG.BufferFlip = IPPU.TileCache[TILE_4BIT];
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|
|
BG.Buffered = BG.BufferedFlip = IPPU.TileCached[TILE_4BIT];
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|
}
|
2010-09-25 15:46:12 +00:00
|
|
|
|
2019-04-02 15:29:45 +00:00
|
|
|
BG.TileShift = 5;
|
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|
|
BG.PaletteShift = 10 - 4;
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|
|
BG.PaletteMask = 7 << 4;
|
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|
|
BG.DirectColourMode = FALSE;
|
2010-09-25 15:46:12 +00:00
|
|
|
|
2019-04-02 15:29:45 +00:00
|
|
|
break;
|
2010-09-25 15:46:12 +00:00
|
|
|
|
2019-04-02 15:29:45 +00:00
|
|
|
case 2:
|
|
|
|
|
if (hires)
|
|
|
|
|
{
|
|
|
|
|
if (sub || mosaic)
|
|
|
|
|
{
|
|
|
|
|
BG.ConvertTile = ConvertTile2h_even;
|
|
|
|
|
BG.Buffer = IPPU.TileCache[TILE_2BIT_EVEN];
|
|
|
|
|
BG.Buffered = IPPU.TileCached[TILE_2BIT_EVEN];
|
|
|
|
|
BG.ConvertTileFlip = ConvertTile2h_odd;
|
|
|
|
|
BG.BufferFlip = IPPU.TileCache[TILE_2BIT_ODD];
|
|
|
|
|
BG.BufferedFlip = IPPU.TileCached[TILE_2BIT_ODD];
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
BG.ConvertTile = ConvertTile2h_odd;
|
|
|
|
|
BG.Buffer = IPPU.TileCache[TILE_2BIT_ODD];
|
|
|
|
|
BG.Buffered = IPPU.TileCached[TILE_2BIT_ODD];
|
|
|
|
|
BG.ConvertTileFlip = ConvertTile2h_even;
|
|
|
|
|
BG.BufferFlip = IPPU.TileCache[TILE_2BIT_EVEN];
|
|
|
|
|
BG.BufferedFlip = IPPU.TileCached[TILE_2BIT_EVEN];
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
BG.ConvertTile = BG.ConvertTileFlip = ConvertTile2;
|
|
|
|
|
BG.Buffer = BG.BufferFlip = IPPU.TileCache[TILE_2BIT];
|
|
|
|
|
BG.Buffered = BG.BufferedFlip = IPPU.TileCached[TILE_2BIT];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
BG.TileShift = 4;
|
|
|
|
|
BG.PaletteShift = 10 - 2;
|
|
|
|
|
BG.PaletteMask = 7 << 2;
|
|
|
|
|
BG.DirectColourMode = FALSE;
|
|
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
