1305 lines
35 KiB
C++
1305 lines
35 KiB
C++
/*****************************************************************************\
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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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#include "snes9x.h"
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#include "ppu.h"
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#include "tile.h"
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extern struct SLineMatrixData LineMatrixData[240];
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namespace {
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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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struct BPProgressive
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{
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enum { Pitch = 1 };
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static alwaysinline uint32 Get(uint32 StartLine) { return StartLine; }
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};
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// Interlace: Only draw every other line, so we'll redefine bpstart_t and Pitch to do so.
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// Otherwise, it's the same as Normal2x1/Hires2x1.
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struct BPInterlace
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{
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enum { Pitch = 2 };
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static alwaysinline uint32 Get(uint32 StartLine) { return StartLine * 2 + BG.InterlaceLine; }
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};
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// The 1x1 pixel plotter, for speedhacking modes.
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template<class MATH, class BPSTART>
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struct Normal1x1Base
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{
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enum { Pitch = BPSTART::Pitch };
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typedef BPSTART bpstart_t;
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static alwaysinline void Draw(uint8 N, uint8 M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2)
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{
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(void) OffsetInLine;
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if (Z1 > GFX.DB[Offset + N] && (M))
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{
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GFX.S[Offset + N] = MATH::Calc(GFX.ScreenColors[Pix], GFX.SubScreen[Offset + N], GFX.SubZBuffer[Offset + N]);
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GFX.DB[Offset + N] = Z2;
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}
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}
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};
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template<class MATH>
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struct Normal1x1 : public Normal1x1Base<MATH, BPProgressive> {};
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// The 2x1 pixel plotter, for normal rendering when we've used hires/interlace already this frame.
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template<class MATH, class BPSTART>
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struct Normal2x1Base
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{
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enum { Pitch = BPSTART::Pitch };
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typedef BPSTART bpstart_t;
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static alwaysinline void Draw(uint8 N, uint8 M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2)
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{
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(void) OffsetInLine;
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if (Z1 > GFX.DB[Offset + 2 * N] && (M))
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{
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GFX.S[Offset + 2 * N] = GFX.S[Offset + 2 * N + 1] = MATH::Calc(GFX.ScreenColors[Pix], GFX.SubScreen[Offset + 2 * N], GFX.SubZBuffer[Offset + 2 * N]);
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GFX.DB[Offset + 2 * N] = GFX.DB[Offset + 2 * N + 1] = Z2;
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}
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}
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};
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template<class MATH>
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struct Normal2x1 : public Normal2x1Base<MATH, BPProgressive> {};
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template<class MATH>
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struct Interlace : public Normal2x1Base<MATH, BPInterlace> {};
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// Hires pixel plotter, this combines the main and subscreen pixels as appropriate to render hires or pseudo-hires images.
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// Use it only on the main screen, subscreen should use Normal2x1 instead.
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// Hires math:
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// Main pixel is mathed as normal: Main(x, y) * Sub(x, y).
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// Sub pixel is mathed somewhat weird: Basically, for Sub(x + 1, y) we apply the same operation we applied to Main(x, y)
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// (e.g. no math, add fixed, add1/2 subscreen) using Main(x, y) as the "corresponding subscreen pixel".
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// Also, color window clipping clips Sub(x + 1, y) if Main(x, y) is clipped, not Main(x + 1, y).
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// We don't know how Sub(0, y) is handled.
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template<class MATH, class BPSTART>
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struct HiresBase
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{
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enum { Pitch = BPSTART::Pitch };
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typedef BPSTART bpstart_t;
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static alwaysinline void Draw(uint8 N, uint8 M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2)
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{
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if (Z1 > GFX.DB[Offset + 2 * N] && (M))
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{
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GFX.S[Offset + 2 * N + 1] = MATH::Calc(GFX.ScreenColors[Pix], GFX.SubScreen[Offset + 2 * N], GFX.SubZBuffer[Offset + 2 * N]);
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if ((OffsetInLine + 2 * N ) != (SNES_WIDTH - 1) << 1)
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GFX.S[Offset + 2 * N + 2] = MATH::Calc((GFX.ClipColors ? 0 : GFX.SubScreen[Offset + 2 * N + 2]), GFX.RealScreenColors[Pix], GFX.SubZBuffer[Offset + 2 * N]);
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if ((OffsetInLine + 2 * N) == 0 || (OffsetInLine + 2 * N) == GFX.RealPPL)
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GFX.S[Offset + 2 * N] = MATH::Calc((GFX.ClipColors ? 0 : GFX.SubScreen[Offset + 2 * N]), GFX.RealScreenColors[Pix], GFX.SubZBuffer[Offset + 2 * N]);
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GFX.DB[Offset + 2 * N] = GFX.DB[Offset + 2 * N + 1] = Z2;
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}
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}
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};
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template<class MATH>
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struct Hires : public HiresBase<MATH, BPProgressive> {};
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template<class MATH>
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struct HiresInterlace : public HiresBase<MATH, BPInterlace> {};
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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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#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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{
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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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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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return (non_zero ? TRUE : BLANK_TILE);
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}
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uint8 ConvertTile4 (uint8 *pCache, uint32 TileAddr, uint32)
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{
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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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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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return (non_zero ? TRUE : BLANK_TILE);
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}
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uint8 ConvertTile8 (uint8 *pCache, uint32 TileAddr, uint32)
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{
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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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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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return (non_zero ? TRUE : BLANK_TILE);
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}
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#undef DOBIT
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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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uint8 ConvertTile2h_odd (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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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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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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return (non_zero ? TRUE : BLANK_TILE);
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}
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uint8 ConvertTile4h_odd (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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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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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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return (non_zero ? TRUE : BLANK_TILE);
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}
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#undef DOBIT
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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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uint8 ConvertTile2h_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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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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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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return (non_zero ? TRUE : BLANK_TILE);
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}
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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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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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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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return (non_zero ? TRUE : BLANK_TILE);
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}
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#undef DOBIT
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class CachedTile
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{
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public:
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CachedTile(uint32 tile) : Tile(tile) {}
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alwaysinline void GetCachedTile()
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{
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TileAddr = BG.TileAddress + ((Tile & 0x3ff) << BG.TileShift);
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if (Tile & 0x100)
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TileAddr += BG.NameSelect;
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TileAddr &= 0xffff;
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TileNumber = TileAddr >> BG.TileShift;
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if (Tile & H_FLIP)
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{
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pCache = &BG.BufferFlip[TileNumber << 6];
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if (!BG.BufferedFlip[TileNumber])
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BG.BufferedFlip[TileNumber] = BG.ConvertTileFlip(pCache, TileAddr, Tile & 0x3ff);
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}
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else
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{
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pCache = &BG.Buffer[TileNumber << 6];
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if (!BG.Buffered[TileNumber])
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BG.Buffered[TileNumber] = BG.ConvertTile(pCache, TileAddr, Tile & 0x3ff);
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}
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}
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alwaysinline bool IsBlankTile() const
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{
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return ((Tile & H_FLIP) ? BG.BufferedFlip[TileNumber] : BG.Buffered[TileNumber]) == BLANK_TILE;
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}
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alwaysinline void SelectPalette() const
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{
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if (BG.DirectColourMode)
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{
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GFX.RealScreenColors = DirectColourMaps[(Tile >> 10) & 7];
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}
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else
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GFX.RealScreenColors = &IPPU.ScreenColors[((Tile >> BG.PaletteShift) & BG.PaletteMask) + BG.StartPalette];
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GFX.ScreenColors = GFX.ClipColors ? BlackColourMap : GFX.RealScreenColors;
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}
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alwaysinline uint8* Ptr() const
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{
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return pCache;
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}
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private:
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uint8 *pCache;
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uint32 Tile;
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uint32 TileNumber;
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uint32 TileAddr;
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};
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struct NOMATH
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{
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static alwaysinline uint16 Calc(uint16 Main, uint16 Sub, uint8 SD)
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{
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return Main;
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}
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};
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typedef NOMATH Blend_None;
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template<class Op>
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struct REGMATH
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{
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static alwaysinline uint16 Calc(uint16 Main, uint16 Sub, uint8 SD)
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{
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return Op::fn(Main, (SD & 0x20) ? Sub : GFX.FixedColour);
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}
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};
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typedef REGMATH<COLOR_ADD> Blend_Add;
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typedef REGMATH<COLOR_SUB> Blend_Sub;
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typedef REGMATH<COLOR_ADD_BRIGHTNESS> Blend_AddBrightness;
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template<class Op>
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struct MATHF1_2
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{
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static alwaysinline uint16 Calc(uint16 Main, uint16 Sub, uint8 SD)
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{
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return GFX.ClipColors ? Op::fn(Main, GFX.FixedColour) : Op::fn1_2(Main, GFX.FixedColour);
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}
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};
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typedef MATHF1_2<COLOR_ADD> Blend_AddF1_2;
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typedef MATHF1_2<COLOR_SUB> Blend_SubF1_2;
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template<class Op>
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struct MATHS1_2
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{
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static alwaysinline uint16 Calc(uint16 Main, uint16 Sub, uint8 SD)
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{
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return GFX.ClipColors ? REGMATH<Op>::Calc(Main, Sub, SD) : (SD & 0x20) ? Op::fn1_2(Main, Sub) : Op::fn(Main, GFX.FixedColour);
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}
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};
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typedef MATHS1_2<COLOR_ADD> Blend_AddS1_2;
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typedef MATHS1_2<COLOR_SUB> Blend_SubS1_2;
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typedef MATHS1_2<COLOR_ADD_BRIGHTNESS> Blend_AddS1_2Brightness;
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template<
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template<class PIXEL_> class TILE,
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template<class MATH> class PIXEL
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>
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struct Renderers
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{
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enum { Pitch = PIXEL<Blend_None>::Pitch };
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typedef typename TILE< PIXEL<Blend_None> >::call_t call_t;
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static call_t Functions[9];
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};
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template<
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template<class PIXEL_> class TILE,
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template<class MATH> class PIXEL
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>
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typename Renderers<TILE, PIXEL>::call_t Renderers<TILE, PIXEL>::Functions[9] =
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{
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TILE< PIXEL<Blend_None> >::Draw,
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TILE< PIXEL<Blend_Add> >::Draw,
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TILE< PIXEL<Blend_AddF1_2> >::Draw,
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TILE< PIXEL<Blend_AddS1_2> >::Draw,
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TILE< PIXEL<Blend_Sub> >::Draw,
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TILE< PIXEL<Blend_SubF1_2> >::Draw,
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TILE< PIXEL<Blend_SubS1_2> >::Draw,
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TILE< PIXEL<Blend_AddBrightness> >::Draw,
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TILE< PIXEL<Blend_AddS1_2Brightness> >::Draw,
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};
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// Basic routine to render an unclipped tile.
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// Input parameters:
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// bpstart_t = either StartLine or (StartLine * 2 + BG.InterlaceLine),
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// so interlace modes can render every other line from the tile.
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// Pitch = 1 or 2, again so interlace can count lines properly.
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// DRAW_PIXEL(N, M) is a routine to actually draw the pixel. N is the pixel in the row to draw,
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// and M is a test which if false means the pixel should be skipped.
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// Z1 is the "draw if Z1 > cur_depth".
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// Z2 is the "cur_depth = new_depth". OBJ need the two separate.
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// Pix is the pixel to draw.
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#define OFFSET_IN_LINE \
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uint32 OffsetInLine = Offset % GFX.RealPPL;
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#define DRAW_PIXEL(N, M) PIXEL::Draw(N, M, Offset, OffsetInLine, Pix, Z1, Z2)
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#define Z1 GFX.Z1
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#define Z2 GFX.Z2
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template<class PIXEL>
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struct DrawTile16
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{
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typedef void (*call_t)(uint32, uint32, uint32, uint32);
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enum { Pitch = PIXEL::Pitch };
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typedef typename PIXEL::bpstart_t bpstart_t;
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static void Draw(uint32 Tile, uint32 Offset, uint32 StartLine, uint32 LineCount)
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{
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CachedTile cache(Tile);
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int32 l;
|
|
uint8 *bp, Pix;
|
|
|
|
cache.GetCachedTile();
|
|
if (cache.IsBlankTile())
|
|
return;
|
|
cache.SelectPalette();
|
|
|
|
if (!(Tile & (V_FLIP | H_FLIP)))
|
|
{
|
|
bp = cache.Ptr() + bpstart_t::Get(StartLine);
|
|
OFFSET_IN_LINE;
|
|
for (l = LineCount; l > 0; l--, bp += 8 * Pitch, Offset += GFX.PPL)
|
|
{
|
|
for (int x = 0; x < 8; x++) {
|
|
Pix = bp[x]; DRAW_PIXEL(x, Pix);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
if (!(Tile & V_FLIP))
|
|
{
|
|
bp = cache.Ptr() + bpstart_t::Get(StartLine);
|
|
OFFSET_IN_LINE;
|
|
for (l = LineCount; l > 0; l--, bp += 8 * Pitch, Offset += GFX.PPL)
|
|
{
|
|
for (int x = 0; x < 8; x++) {
|
|
Pix = bp[7 - x]; DRAW_PIXEL(x, Pix);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
if (!(Tile & H_FLIP))
|
|
{
|
|
bp = cache.Ptr() + 56 - bpstart_t::Get(StartLine);
|
|
OFFSET_IN_LINE;
|
|
for (l = LineCount; l > 0; l--, bp -= 8 * Pitch, Offset += GFX.PPL)
|
|
{
|
|
for (int x = 0; x < 8; x++) {
|
|
Pix = bp[x]; DRAW_PIXEL(x, Pix);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bp = cache.Ptr() + 56 - bpstart_t::Get(StartLine);
|
|
OFFSET_IN_LINE;
|
|
for (l = LineCount; l > 0; l--, bp -= 8 * Pitch, Offset += GFX.PPL)
|
|
{
|
|
for (int x = 0; x < 8; x++) {
|
|
Pix = bp[7 - x]; DRAW_PIXEL(x, Pix);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
#undef Z1
|
|
#undef Z2
|
|
|
|
// Basic routine to render a clipped tile. Inputs same as above.
|
|
|
|
#define Z1 GFX.Z1
|
|
#define Z2 GFX.Z2
|
|
|
|
template<class PIXEL>
|
|
struct DrawClippedTile16
|
|
{
|
|
typedef void (*call_t)(uint32, uint32, uint32, uint32, uint32, uint32);
|
|
|
|
enum { Pitch = PIXEL::Pitch };
|
|
typedef typename PIXEL::bpstart_t bpstart_t;
|
|
|
|
static void Draw(uint32 Tile, uint32 Offset, uint32 StartPixel, uint32 Width, uint32 StartLine, uint32 LineCount)
|
|
{
|
|
CachedTile cache(Tile);
|
|
int32 l;
|
|
uint8 *bp, Pix, w;
|
|
|
|
cache.GetCachedTile();
|
|
if (cache.IsBlankTile())
|
|
return;
|
|
cache.SelectPalette();
|
|
|
|
if (!(Tile & (V_FLIP | H_FLIP)))
|
|
{
|
|
bp = cache.Ptr() + bpstart_t::Get(StartLine);
|
|
OFFSET_IN_LINE;
|
|
for (l = LineCount; l > 0; l--, bp += 8 * Pitch, Offset += GFX.PPL)
|
|
{
|
|
w = Width;
|
|
switch (StartPixel)
|
|
{
|
|
case 0: Pix = bp[0]; DRAW_PIXEL(0, Pix); if (!--w) break; /* Fall through */
|
|
case 1: Pix = bp[1]; DRAW_PIXEL(1, Pix); if (!--w) break; /* Fall through */
|
|
case 2: Pix = bp[2]; DRAW_PIXEL(2, Pix); if (!--w) break; /* Fall through */
|
|
case 3: Pix = bp[3]; DRAW_PIXEL(3, Pix); if (!--w) break; /* Fall through */
|
|
case 4: Pix = bp[4]; DRAW_PIXEL(4, Pix); if (!--w) break; /* Fall through */
|
|
case 5: Pix = bp[5]; DRAW_PIXEL(5, Pix); if (!--w) break; /* Fall through */
|
|
case 6: Pix = bp[6]; DRAW_PIXEL(6, Pix); if (!--w) break; /* Fall through */
|
|
case 7: Pix = bp[7]; DRAW_PIXEL(7, Pix); break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
if (!(Tile & V_FLIP))
|
|
{
|
|
bp = cache.Ptr() + bpstart_t::Get(StartLine);
|
|
OFFSET_IN_LINE;
|
|
for (l = LineCount; l > 0; l--, bp += 8 * Pitch, Offset += GFX.PPL)
|
|
{
|
|
w = Width;
|
|
switch (StartPixel)
|
|
{
|
|
case 0: Pix = bp[7]; DRAW_PIXEL(0, Pix); if (!--w) break; /* Fall through */
|
|
case 1: Pix = bp[6]; DRAW_PIXEL(1, Pix); if (!--w) break; /* Fall through */
|
|
case 2: Pix = bp[5]; DRAW_PIXEL(2, Pix); if (!--w) break; /* Fall through */
|
|
case 3: Pix = bp[4]; DRAW_PIXEL(3, Pix); if (!--w) break; /* Fall through */
|
|
case 4: Pix = bp[3]; DRAW_PIXEL(4, Pix); if (!--w) break; /* Fall through */
|
|
case 5: Pix = bp[2]; DRAW_PIXEL(5, Pix); if (!--w) break; /* Fall through */
|
|
case 6: Pix = bp[1]; DRAW_PIXEL(6, Pix); if (!--w) break; /* Fall through */
|
|
case 7: Pix = bp[0]; DRAW_PIXEL(7, Pix); break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
if (!(Tile & H_FLIP))
|
|
{
|
|
bp = cache.Ptr() + 56 - bpstart_t::Get(StartLine);
|
|
OFFSET_IN_LINE;
|
|
for (l = LineCount; l > 0; l--, bp -= 8 * Pitch, Offset += GFX.PPL)
|
|
{
|
|
w = Width;
|
|
switch (StartPixel)
|
|
{
|
|
case 0: Pix = bp[0]; DRAW_PIXEL(0, Pix); if (!--w) break; /* Fall through */
|
|
case 1: Pix = bp[1]; DRAW_PIXEL(1, Pix); if (!--w) break; /* Fall through */
|
|
case 2: Pix = bp[2]; DRAW_PIXEL(2, Pix); if (!--w) break; /* Fall through */
|
|
case 3: Pix = bp[3]; DRAW_PIXEL(3, Pix); if (!--w) break; /* Fall through */
|
|
case 4: Pix = bp[4]; DRAW_PIXEL(4, Pix); if (!--w) break; /* Fall through */
|
|
case 5: Pix = bp[5]; DRAW_PIXEL(5, Pix); if (!--w) break; /* Fall through */
|
|
case 6: Pix = bp[6]; DRAW_PIXEL(6, Pix); if (!--w) break; /* Fall through */
|
|
case 7: Pix = bp[7]; DRAW_PIXEL(7, Pix); break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bp = cache.Ptr() + 56 - bpstart_t::Get(StartLine);
|
|
OFFSET_IN_LINE;
|
|
for (l = LineCount; l > 0; l--, bp -= 8 * Pitch, Offset += GFX.PPL)
|
|
{
|
|
w = Width;
|
|
switch (StartPixel)
|
|
{
|
|
case 0: Pix = bp[7]; DRAW_PIXEL(0, Pix); if (!--w) break; /* Fall through */
|
|
case 1: Pix = bp[6]; DRAW_PIXEL(1, Pix); if (!--w) break; /* Fall through */
|
|
case 2: Pix = bp[5]; DRAW_PIXEL(2, Pix); if (!--w) break; /* Fall through */
|
|
case 3: Pix = bp[4]; DRAW_PIXEL(3, Pix); if (!--w) break; /* Fall through */
|
|
case 4: Pix = bp[3]; DRAW_PIXEL(4, Pix); if (!--w) break; /* Fall through */
|
|
case 5: Pix = bp[2]; DRAW_PIXEL(5, Pix); if (!--w) break; /* Fall through */
|
|
case 6: Pix = bp[1]; DRAW_PIXEL(6, Pix); if (!--w) break; /* Fall through */
|
|
case 7: Pix = bp[0]; DRAW_PIXEL(7, Pix); break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
#undef Z1
|
|
#undef Z2
|
|
|
|
// Basic routine to render a single mosaic pixel.
|
|
// DRAW_PIXEL, bpstart_t, Z1, Z2 and Pix are the same as above, but Pitch is not used.
|
|
|
|
#define Z1 GFX.Z1
|
|
#define Z2 GFX.Z2
|
|
|
|
template<class PIXEL>
|
|
struct DrawMosaicPixel16
|
|
{
|
|
typedef void (*call_t)(uint32, uint32, uint32, uint32, uint32, uint32);
|
|
|
|
typedef typename PIXEL::bpstart_t bpstart_t;
|
|
|
|
static void Draw(uint32 Tile, uint32 Offset, uint32 StartLine, uint32 StartPixel, uint32 Width, uint32 LineCount)
|
|
{
|
|
CachedTile cache(Tile);
|
|
int32 l, w;
|
|
uint8 Pix;
|
|
|
|
cache.GetCachedTile();
|
|
if (cache.IsBlankTile())
|
|
return;
|
|
cache.SelectPalette();
|
|
|
|
if (Tile & H_FLIP)
|
|
StartPixel = 7 - StartPixel;
|
|
|
|
if (Tile & V_FLIP)
|
|
Pix = cache.Ptr()[56 - bpstart_t::Get(StartLine) + StartPixel];
|
|
else
|
|
Pix = cache.Ptr()[bpstart_t::Get(StartLine) + StartPixel];
|
|
|
|
if (Pix)
|
|
{
|
|
OFFSET_IN_LINE;
|
|
for (l = LineCount; l > 0; l--, Offset += GFX.PPL)
|
|
{
|
|
for (w = Width - 1; w >= 0; w--)
|
|
DRAW_PIXEL(w, 1);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
#undef Z1
|
|
#undef Z2
|
|
|
|
// Basic routine to render the backdrop.
|
|
// DRAW_PIXEL is the same as above, but since we're just replicating a single pixel there's no need for Pitch or bpstart_t
|
|
// (or interlace at all, really).
|
|
// The backdrop is always depth = 1, so Z1 = Z2 = 1. And backdrop is always color 0.
|
|
|
|
#define Z1 1
|
|
#define Z2 1
|
|
#define Pix 0
|
|
|
|
template<class PIXEL>
|
|
struct DrawBackdrop16
|
|
{
|
|
typedef void (*call_t)(uint32 Offset, uint32 Left, uint32 Right);
|
|
|
|
static void Draw(uint32 Offset, uint32 Left, uint32 Right)
|
|
{
|
|
uint32 l, x;
|
|
|
|
GFX.RealScreenColors = IPPU.ScreenColors;
|
|
GFX.ScreenColors = GFX.ClipColors ? BlackColourMap : GFX.RealScreenColors;
|
|
|
|
OFFSET_IN_LINE;
|
|
for (l = GFX.StartY; l <= GFX.EndY; l++, Offset += GFX.PPL)
|
|
{
|
|
for (x = Left; x < Right; x++)
|
|
DRAW_PIXEL(x, 1);
|
|
}
|
|
}
|
|
};
|
|
|
|
#undef Pix
|
|
#undef Z1
|
|
#undef Z2
|
|
#undef DRAW_PIXEL
|
|
|
|
// Basic routine to render a chunk of a Mode 7 BG.
|
|
// Mode 7 has no interlace, so bpstart_t and Pitch are unused.
|
|
// We get some new parameters, so we can use the same DRAW_TILE to do BG1 or BG2:
|
|
// DCMODE tests if Direct Color should apply.
|
|
// BG is the BG, so we use the right clip window.
|
|
// MASK is 0xff or 0x7f, the 'color' portion of the pixel.
|
|
// We define Z1/Z2 to either be constant 5 or to vary depending on the 'priority' portion of the pixel.
|
|
|
|
#define CLIP_10_BIT_SIGNED(a) (((a) & 0x2000) ? ((a) | ~0x3ff) : ((a) & 0x3ff))
|
|
|
|
#define DRAW_PIXEL(N, M) PIXEL::Draw(N, M, Offset, OffsetInLine, Pix, OP::Z1(D, b), OP::Z2(D, b))
|
|
|
|
struct DrawMode7BG1_OP
|
|
{
|
|
enum {
|
|
MASK = 0xff,
|
|
BG = 0
|
|
};
|
|
static uint8 Z1(int D, uint8 b) { return D + 7; }
|
|
static uint8 Z2(int D, uint8 b) { return D + 7; }
|
|
static uint8 DCMODE() { return Memory.FillRAM[0x2130] & 1; }
|
|
};
|
|
struct DrawMode7BG2_OP
|
|
{
|
|
enum {
|
|
MASK = 0x7f,
|
|
BG = 1
|
|
};
|
|
static uint8 Z1(int D, uint8 b) { return D + ((b & 0x80) ? 11 : 3); }
|
|
static uint8 Z2(int D, uint8 b) { return D + ((b & 0x80) ? 11 : 3); }
|
|
static uint8 DCMODE() { return 0; }
|
|
};
|
|
|
|
template<class PIXEL, class OP>
|
|
struct DrawTileNormal
|
|
{
|
|
typedef void (*call_t)(uint32 Left, uint32 Right, int D);
|
|
|
|
static void Draw(uint32 Left, uint32 Right, int D)
|
|
{
|
|
uint8 *VRAM1 = Memory.VRAM + 1;
|
|
|
|
if (OP::DCMODE())
|
|
{
|
|
GFX.RealScreenColors = DirectColourMaps[0];
|
|
}
|
|
else
|
|
GFX.RealScreenColors = IPPU.ScreenColors;
|
|
|
|
GFX.ScreenColors = GFX.ClipColors ? BlackColourMap : GFX.RealScreenColors;
|
|
|
|
int aa, cc;
|
|
int startx;
|
|
|
|
uint32 Offset = GFX.StartY * GFX.PPL;
|
|
struct SLineMatrixData *l = &LineMatrixData[GFX.StartY];
|
|
|
|
OFFSET_IN_LINE;
|
|
for (uint32 Line = GFX.StartY; Line <= GFX.EndY; Line++, Offset += GFX.PPL, l++)
|
|
{
|
|
int yy, starty;
|
|
|
|
int32 HOffset = ((int32) l->M7HOFS << 19) >> 19;
|
|
int32 VOffset = ((int32) l->M7VOFS << 19) >> 19;
|
|
|
|
int32 CentreX = ((int32) l->CentreX << 19) >> 19;
|
|
int32 CentreY = ((int32) l->CentreY << 19) >> 19;
|
|
|
|
if (PPU.Mode7VFlip)
|
|
starty = 255 - (int) (Line + 1);
|
|
else
|
|
starty = Line + 1;
|
|
|
|
yy = CLIP_10_BIT_SIGNED(VOffset - CentreY);
|
|
|
|
int BB = ((l->MatrixB * starty) & ~63) + ((l->MatrixB * yy) & ~63) + (CentreX << 8);
|
|
int DD = ((l->MatrixD * starty) & ~63) + ((l->MatrixD * yy) & ~63) + (CentreY << 8);
|
|
|
|
if (PPU.Mode7HFlip)
|
|
{
|
|
startx = Right - 1;
|
|
aa = -l->MatrixA;
|
|
cc = -l->MatrixC;
|
|
}
|
|
else
|
|
{
|
|
startx = Left;
|
|
aa = l->MatrixA;
|
|
cc = l->MatrixC;
|
|
}
|
|
|
|
int xx = CLIP_10_BIT_SIGNED(HOffset - CentreX);
|
|
int AA = l->MatrixA * startx + ((l->MatrixA * xx) & ~63);
|
|
int CC = l->MatrixC * startx + ((l->MatrixC * xx) & ~63);
|
|
|
|
uint8 Pix;
|
|
|
|
if (!PPU.Mode7Repeat)
|
|
{
|
|
for (uint32 x = Left; x < Right; x++, AA += aa, CC += cc)
|
|
{
|
|
int X = ((AA + BB) >> 8) & 0x3ff;
|
|
int Y = ((CC + DD) >> 8) & 0x3ff;
|
|
|
|
uint8 *TileData = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X >> 2) & ~1)] << 7);
|
|
uint8 b = *(TileData + ((Y & 7) << 4) + ((X & 7) << 1));
|
|
|
|
Pix = b & OP::MASK; DRAW_PIXEL(x, Pix);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (uint32 x = Left; x < Right; x++, AA += aa, CC += cc)
|
|
{
|
|
int X = ((AA + BB) >> 8);
|
|
int Y = ((CC + DD) >> 8);
|
|
|
|
uint8 b;
|
|
|
|
if (((X | Y) & ~0x3ff) == 0)
|
|
{
|
|
uint8 *TileData = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X >> 2) & ~1)] << 7);
|
|
b = *(TileData + ((Y & 7) << 4) + ((X & 7) << 1));
|
|
}
|
|
else
|
|
if (PPU.Mode7Repeat == 3)
|
|
b = *(VRAM1 + ((Y & 7) << 4) + ((X & 7) << 1));
|
|
else
|
|
continue;
|
|
|
|
Pix = b & OP::MASK; DRAW_PIXEL(x, Pix);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
template<class PIXEL>
|
|
struct DrawMode7BG1 : public DrawTileNormal<PIXEL, DrawMode7BG1_OP> {};
|
|
template<class PIXEL>
|
|
struct DrawMode7BG2 : public DrawTileNormal<PIXEL, DrawMode7BG2_OP> {};
|
|
|
|
template<class PIXEL, class OP>
|
|
struct DrawTileMosaic
|
|
{
|
|
typedef void (*call_t)(uint32 Left, uint32 Right, int D);
|
|
|
|
static void Draw(uint32 Left, uint32 Right, int D)
|
|
{
|
|
uint8 *VRAM1 = Memory.VRAM + 1;
|
|
|
|
if (OP::DCMODE())
|
|
{
|
|
GFX.RealScreenColors = DirectColourMaps[0];
|
|
}
|
|
else
|
|
GFX.RealScreenColors = IPPU.ScreenColors;
|
|
|
|
GFX.ScreenColors = GFX.ClipColors ? BlackColourMap : GFX.RealScreenColors;
|
|
|
|
int aa, cc;
|
|
int startx, StartY = GFX.StartY;
|
|
|
|
int HMosaic = 1, VMosaic = 1, MosaicStart = 0;
|
|
int32 MLeft = Left, MRight = Right;
|
|
|
|
if (PPU.BGMosaic[0])
|
|
{
|
|
VMosaic = PPU.Mosaic;
|
|
MosaicStart = ((uint32) GFX.StartY - PPU.MosaicStart) % VMosaic;
|
|
StartY -= MosaicStart;
|
|
}
|
|
|
|
if (PPU.BGMosaic[OP::BG])
|
|
{
|
|
HMosaic = PPU.Mosaic;
|
|
MLeft -= MLeft % HMosaic;
|
|
MRight += HMosaic - 1;
|
|
MRight -= MRight % HMosaic;
|
|
}
|
|
|
|
uint32 Offset = StartY * GFX.PPL;
|
|
struct SLineMatrixData *l = &LineMatrixData[StartY];
|
|
|
|
OFFSET_IN_LINE;
|
|
for (uint32 Line = StartY; Line <= GFX.EndY; Line += VMosaic, Offset += VMosaic * GFX.PPL, l += VMosaic)
|
|
{
|
|
if (Line + VMosaic > GFX.EndY)
|
|
VMosaic = GFX.EndY - Line + 1;
|
|
|
|
int yy, starty;
|
|
|
|
int32 HOffset = ((int32) l->M7HOFS << 19) >> 19;
|
|
int32 VOffset = ((int32) l->M7VOFS << 19) >> 19;
|
|
|
|
int32 CentreX = ((int32) l->CentreX << 19) >> 19;
|
|
int32 CentreY = ((int32) l->CentreY << 19) >> 19;
|
|
|
|
if (PPU.Mode7VFlip)
|
|
starty = 255 - (int) (Line + 1);
|
|
else
|
|
starty = Line + 1;
|
|
|
|
yy = CLIP_10_BIT_SIGNED(VOffset - CentreY);
|
|
|
|
int BB = ((l->MatrixB * starty) & ~63) + ((l->MatrixB * yy) & ~63) + (CentreX << 8);
|
|
int DD = ((l->MatrixD * starty) & ~63) + ((l->MatrixD * yy) & ~63) + (CentreY << 8);
|
|
|
|
if (PPU.Mode7HFlip)
|
|
{
|
|
startx = MRight - 1;
|
|
aa = -l->MatrixA;
|
|
cc = -l->MatrixC;
|
|
}
|
|
else
|
|
{
|
|
startx = MLeft;
|
|
aa = l->MatrixA;
|
|
cc = l->MatrixC;
|
|
}
|
|
|
|
int xx = CLIP_10_BIT_SIGNED(HOffset - CentreX);
|
|
int AA = l->MatrixA * startx + ((l->MatrixA * xx) & ~63);
|
|
int CC = l->MatrixC * startx + ((l->MatrixC * xx) & ~63);
|
|
|
|
uint8 Pix;
|
|
uint8 ctr = 1;
|
|
|
|
if (!PPU.Mode7Repeat)
|
|
{
|
|
for (int32 x = MLeft; x < MRight; x++, AA += aa, CC += cc)
|
|
{
|
|
if (--ctr)
|
|
continue;
|
|
ctr = HMosaic;
|
|
|
|
int X = ((AA + BB) >> 8) & 0x3ff;
|
|
int Y = ((CC + DD) >> 8) & 0x3ff;
|
|
|
|
uint8 *TileData = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X >> 2) & ~1)] << 7);
|
|
uint8 b = *(TileData + ((Y & 7) << 4) + ((X & 7) << 1));
|
|
|
|
if ((Pix = (b & OP::MASK)))
|
|
{
|
|
for (int32 h = MosaicStart; h < VMosaic; h++)
|
|
{
|
|
for (int32 w = x + HMosaic - 1; w >= x; w--)
|
|
DRAW_PIXEL(w + h * GFX.PPL, (w >= (int32) Left && w < (int32) Right));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (int32 x = MLeft; x < MRight; x++, AA += aa, CC += cc)
|
|
{
|
|
if (--ctr)
|
|
continue;
|
|
ctr = HMosaic;
|
|
|
|
int X = ((AA + BB) >> 8);
|
|
int Y = ((CC + DD) >> 8);
|
|
|
|
uint8 b;
|
|
|
|
if (((X | Y) & ~0x3ff) == 0)
|
|
{
|
|
uint8 *TileData = VRAM1 + (Memory.VRAM[((Y & ~7) << 5) + ((X >> 2) & ~1)] << 7);
|
|
b = *(TileData + ((Y & 7) << 4) + ((X & 7) << 1));
|
|
}
|
|
else
|
|
if (PPU.Mode7Repeat == 3)
|
|
b = *(VRAM1 + ((Y & 7) << 4) + ((X & 7) << 1));
|
|
else
|
|
continue;
|
|
|
|
if ((Pix = (b & OP::MASK)))
|
|
{
|
|
for (int32 h = MosaicStart; h < VMosaic; h++)
|
|
{
|
|
for (int32 w = x + HMosaic - 1; w >= x; w--)
|
|
DRAW_PIXEL(w + h * GFX.PPL, (w >= (int32) Left && w < (int32) Right));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
MosaicStart = 0;
|
|
}
|
|
}
|
|
};
|
|
|
|
template<class PIXEL>
|
|
struct DrawMode7MosaicBG1 : public DrawTileMosaic<PIXEL, DrawMode7BG1_OP> {};
|
|
template<class PIXEL>
|
|
struct DrawMode7MosaicBG2 : public DrawTileMosaic<PIXEL, DrawMode7BG2_OP> {};
|
|
|
|
|
|
#undef DRAW_PIXEL
|
|
|
|
} // anonymous namespace
|
|
|
|
|
|
void S9xInitTileRenderer (void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
uint32 b = 0;
|
|
|
|
#ifdef LSB_FIRST
|
|
if (i & 8)
|
|
b |= 1;
|
|
if (i & 4)
|
|
b |= 1 << 8;
|
|
if (i & 2)
|
|
b |= 1 << 16;
|
|
if (i & 1)
|
|
b |= 1 << 24;
|
|
#else
|
|
if (i & 8)
|
|
b |= 1 << 24;
|
|
if (i & 4)
|
|
b |= 1 << 16;
|
|
if (i & 2)
|
|
b |= 1 << 8;
|
|
if (i & 1)
|
|
b |= 1;
|
|
#endif
|
|
|
|
for (uint8 bitshift = 0; bitshift < 8; bitshift++)
|
|
pixbit[bitshift][i] = b << bitshift;
|
|
}
|
|
|
|
for (i = 0; i < 256; i++)
|
|
{
|
|
uint8 m = 0;
|
|
uint8 s = 0;
|
|
|
|
if (i & 0x80)
|
|
s |= 8;
|
|
if (i & 0x40)
|
|
m |= 8;
|
|
if (i & 0x20)
|
|
s |= 4;
|
|
if (i & 0x10)
|
|
m |= 4;
|
|
if (i & 0x08)
|
|
s |= 2;
|
|
if (i & 0x04)
|
|
m |= 2;
|
|
if (i & 0x02)
|
|
s |= 1;
|
|
if (i & 0x01)
|
|
m |= 1;
|
|
|
|
hrbit_odd[i] = m;
|
|
hrbit_even[i] = s;
|
|
}
|
|
}
|
|
|
|
// Functions to select which converter and renderer to use.
|
|
|
|
void S9xSelectTileRenderers (int BGMode, bool8 sub, bool8 obj)
|
|
{
|
|
void (**DT) (uint32, uint32, uint32, uint32);
|
|
void (**DCT) (uint32, uint32, uint32, uint32, uint32, uint32);
|
|
void (**DMP) (uint32, uint32, uint32, uint32, uint32, uint32);
|
|
void (**DB) (uint32, uint32, uint32);
|
|
void (**DM7BG1) (uint32, uint32, int);
|
|
void (**DM7BG2) (uint32, uint32, int);
|
|
bool8 M7M1, M7M2;
|
|
|
|
M7M1 = PPU.BGMosaic[0] && PPU.Mosaic > 1;
|
|
M7M2 = PPU.BGMosaic[1] && PPU.Mosaic > 1;
|
|
|
|
bool8 interlace = obj ? FALSE : IPPU.Interlace;
|
|
bool8 hires = !sub && (BGMode == 5 || BGMode == 6 || IPPU.PseudoHires);
|
|
|
|
if (!IPPU.DoubleWidthPixels) // normal width
|
|
{
|
|
DT = Renderers<DrawTile16, Normal1x1>::Functions;
|
|
DCT = Renderers<DrawClippedTile16, Normal1x1>::Functions;
|
|
DMP = Renderers<DrawMosaicPixel16, Normal1x1>::Functions;
|
|
DB = Renderers<DrawBackdrop16, Normal1x1>::Functions;
|
|
DM7BG1 = M7M1 ? Renderers<DrawMode7MosaicBG1, Normal1x1>::Functions : Renderers<DrawMode7BG1, Normal1x1>::Functions;
|
|
DM7BG2 = M7M2 ? Renderers<DrawMode7MosaicBG2, Normal1x1>::Functions : Renderers<DrawMode7BG2, Normal1x1>::Functions;
|
|
GFX.LinesPerTile = 8;
|
|
}
|
|
else if(hires) // hires double width
|
|
{
|
|
if (interlace)
|
|
{
|
|
DT = Renderers<DrawTile16, HiresInterlace>::Functions;
|
|
DCT = Renderers<DrawClippedTile16, HiresInterlace>::Functions;
|
|
DMP = Renderers<DrawMosaicPixel16, HiresInterlace>::Functions;
|
|
DB = Renderers<DrawBackdrop16, Hires>::Functions;
|
|
DM7BG1 = M7M1 ? Renderers<DrawMode7MosaicBG1, Hires>::Functions : Renderers<DrawMode7BG1, Hires>::Functions;
|
|
DM7BG2 = M7M2 ? Renderers<DrawMode7MosaicBG2, Hires>::Functions : Renderers<DrawMode7BG2, Hires>::Functions;
|
|
GFX.LinesPerTile = 4;
|
|
}
|
|
else
|
|
{
|
|
DT = Renderers<DrawTile16, Hires>::Functions;
|
|
DCT = Renderers<DrawClippedTile16, Hires>::Functions;
|
|
DMP = Renderers<DrawMosaicPixel16, Hires>::Functions;
|
|
DB = Renderers<DrawBackdrop16, Hires>::Functions;
|
|
DM7BG1 = M7M1 ? Renderers<DrawMode7MosaicBG1, Hires>::Functions : Renderers<DrawMode7BG1, Hires>::Functions;
|
|
DM7BG2 = M7M2 ? Renderers<DrawMode7MosaicBG2, Hires>::Functions : Renderers<DrawMode7BG2, Hires>::Functions;
|
|
GFX.LinesPerTile = 8;
|
|
}
|
|
}
|
|
else // normal double width
|
|
{
|
|
if (interlace)
|
|
{
|
|
DT = Renderers<DrawTile16, Interlace>::Functions;
|
|
DCT = Renderers<DrawClippedTile16, Interlace>::Functions;
|
|
DMP = Renderers<DrawMosaicPixel16, Interlace>::Functions;
|
|
DB = Renderers<DrawBackdrop16, Normal2x1>::Functions;
|
|
DM7BG1 = M7M1 ? Renderers<DrawMode7MosaicBG1, Normal2x1>::Functions : Renderers<DrawMode7BG1, Normal2x1>::Functions;
|
|
DM7BG2 = M7M2 ? Renderers<DrawMode7MosaicBG2, Normal2x1>::Functions : Renderers<DrawMode7BG2, Normal2x1>::Functions;
|
|
GFX.LinesPerTile = 4;
|
|
}
|
|
else
|
|
{
|
|
DT = Renderers<DrawTile16, Normal2x1>::Functions;
|
|
DCT = Renderers<DrawClippedTile16, Normal2x1>::Functions;
|
|
DMP = Renderers<DrawMosaicPixel16, Normal2x1>::Functions;
|
|
DB = Renderers<DrawBackdrop16, Normal2x1>::Functions;
|
|
DM7BG1 = M7M1 ? Renderers<DrawMode7MosaicBG1, Normal2x1>::Functions : Renderers<DrawMode7BG1, Normal2x1>::Functions;
|
|
DM7BG2 = M7M2 ? Renderers<DrawMode7MosaicBG2, Normal2x1>::Functions : Renderers<DrawMode7BG2, Normal2x1>::Functions;
|
|
GFX.LinesPerTile = 8;
|
|
}
|
|
}
|
|
|
|
GFX.DrawTileNomath = DT[0];
|
|
GFX.DrawClippedTileNomath = DCT[0];
|
|
GFX.DrawMosaicPixelNomath = DMP[0];
|
|
GFX.DrawBackdropNomath = DB[0];
|
|
GFX.DrawMode7BG1Nomath = DM7BG1[0];
|
|
GFX.DrawMode7BG2Nomath = DM7BG2[0];
|
|
|
|
int i;
|
|
|
|
if (!Settings.Transparency)
|
|
i = 0;
|
|
else
|
|
{
|
|
i = (Memory.FillRAM[0x2131] & 0x80) ? 4 : 1;
|
|
if (Memory.FillRAM[0x2131] & 0x40)
|
|
{
|
|
i++;
|
|
if (Memory.FillRAM[0x2130] & 2)
|
|
i++;
|
|
}
|
|
if (IPPU.MaxBrightness != 0xf)
|
|
{
|
|
if (i == 1)
|
|
i = 7;
|
|
else if (i == 3)
|
|
i = 8;
|
|
}
|
|
|
|
}
|
|
|
|
GFX.DrawTileMath = DT[i];
|
|
GFX.DrawClippedTileMath = DCT[i];
|
|
GFX.DrawMosaicPixelMath = DMP[i];
|
|
GFX.DrawBackdropMath = DB[i];
|
|
GFX.DrawMode7BG1Math = DM7BG1[i];
|
|
GFX.DrawMode7BG2Math = DM7BG2[i];
|
|
}
|
|
|
|
void S9xSelectTileConverter (int depth, bool8 hires, bool8 sub, bool8 mosaic)
|
|
{
|
|
switch (depth)
|
|
{
|
|
case 8:
|
|
BG.ConvertTile = BG.ConvertTileFlip = ConvertTile8;
|
|
BG.Buffer = BG.BufferFlip = IPPU.TileCache[TILE_8BIT];
|
|
BG.Buffered = BG.BufferedFlip = IPPU.TileCached[TILE_8BIT];
|
|
BG.TileShift = 6;
|
|
BG.PaletteShift = 0;
|
|
BG.PaletteMask = 0;
|
|
BG.DirectColourMode = Memory.FillRAM[0x2130] & 1;
|
|
|
|
break;
|
|
|
|
case 4:
|
|
if (hires)
|
|
{
|
|
if (sub || mosaic)
|
|
{
|
|
BG.ConvertTile = ConvertTile4h_even;
|
|
BG.Buffer = IPPU.TileCache[TILE_4BIT_EVEN];
|
|
BG.Buffered = IPPU.TileCached[TILE_4BIT_EVEN];
|
|
BG.ConvertTileFlip = ConvertTile4h_odd;
|
|
BG.BufferFlip = IPPU.TileCache[TILE_4BIT_ODD];
|
|
BG.BufferedFlip = IPPU.TileCached[TILE_4BIT_ODD];
|
|
}
|
|
else
|
|
{
|
|
BG.ConvertTile = ConvertTile4h_odd;
|
|
BG.Buffer = IPPU.TileCache[TILE_4BIT_ODD];
|
|
BG.Buffered = IPPU.TileCached[TILE_4BIT_ODD];
|
|
BG.ConvertTileFlip = ConvertTile4h_even;
|
|
BG.BufferFlip = IPPU.TileCache[TILE_4BIT_EVEN];
|
|
BG.BufferedFlip = IPPU.TileCached[TILE_4BIT_EVEN];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
BG.ConvertTile = BG.ConvertTileFlip = ConvertTile4;
|
|
BG.Buffer = BG.BufferFlip = IPPU.TileCache[TILE_4BIT];
|
|
BG.Buffered = BG.BufferedFlip = IPPU.TileCached[TILE_4BIT];
|
|
}
|
|
|
|
BG.TileShift = 5;
|
|
BG.PaletteShift = 10 - 4;
|
|
BG.PaletteMask = 7 << 4;
|
|
BG.DirectColourMode = FALSE;
|
|
|
|
break;
|
|
|
|
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;
|
|
}
|
|
}
|