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gfx.cpp
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gfx.cpp
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/*
* Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
*
* (c) Copyright 1996 - 2001 Gary Henderson ([email protected]) and
* Jerremy Koot ([email protected])
*
* Super FX C emulator code
* (c) Copyright 1997 - 1999 Ivar ([email protected]) and
* Gary Henderson.
* Super FX assembler emulator code (c) Copyright 1998 zsKnight and _Demo_.
*
* DSP1 emulator code (c) Copyright 1998 Ivar, _Demo_ and Gary Henderson.
* C4 asm and some C emulation code (c) Copyright 2000 zsKnight and _Demo_.
* C4 C code (c) Copyright 2001 Gary Henderson ([email protected]).
*
* DOS port code contains the works of other authors. See headers in
* individual files.
*
* Snes9x homepage: http://www.snes9x.com
*
* Permission to use, copy, modify and distribute Snes9x in both binary and
* source form, for non-commercial purposes, is hereby granted without fee,
* providing that this license information and copyright notice appear with
* all copies and any derived work.
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event shall the authors be held liable for any damages
* arising from the use of this software.
*
* Snes9x is freeware for PERSONAL USE only. Commercial users should
* seek permission of the copyright holders first. Commercial use includes
* charging money for Snes9x or software derived from Snes9x.
*
* The copyright holders request that bug fixes and improvements to the code
* should be forwarded to them so everyone can benefit from the modifications
* in future versions.
*
* Super NES and Super Nintendo Entertainment System are trademarks of
* Nintendo Co., Limited and its subsidiary companies.
*/
#include "snes9x.h"
#include "memmap.h"
#include "ppu.h"
#include "cpuexec.h"
#include "display.h"
#include "gfx.h"
#include "apu.h"
#ifdef CHEATS
#include "cheats.h"
#endif
#define M7 19
#define M8 19
void ComputeClipWindows ();
//static void S9xDisplayFrameRate ();
//static void S9xDisplayString (const char *string);
extern uint8 BitShifts[8][4];
extern uint8 TileShifts[8][4];
extern uint8 PaletteShifts[8][4];
extern uint8 PaletteMasks[8][4];
extern uint8 Depths[8][4];
extern uint8 BGSizes [2];
extern NormalTileRenderer DrawTilePtr;
extern ClippedTileRenderer DrawClippedTilePtr;
extern NormalTileRenderer DrawHiResTilePtr;
extern ClippedTileRenderer DrawHiResClippedTilePtr;
extern LargePixelRenderer DrawLargePixelPtr;
extern struct SBG BG;
extern struct SLineData LineData[240];
extern struct SLineMatrixData LineMatrixData [240];
extern uint8 Mode7Depths [2];
extern bool8_32 Scale;
#define ON_MAIN(N) \
(GFX.r212c & (1 << (N)) && \
!(PPU.BG_Forced & (1 << (N))))
#define SUB_OR_ADD(N) \
(GFX.r2131 & (1 << (N)))
#define ON_SUB(N) \
((GFX.r2130 & 0x30) != 0x30 && \
(GFX.r2130 & 2) && \
(GFX.r212d & (1 << N)) && \
!(PPU.BG_Forced & (1 << (N))))
#define ANYTHING_ON_SUB \
((GFX.r2130 & 0x30) != 0x30 && \
(GFX.r2130 & 2) && \
(GFX.r212d & 0x1f))
#define ADD_OR_SUB_ON_ANYTHING \
(GFX.r2131 & 0x3f)
#define BLACK BUILD_PIXEL(0,0,0)
#ifndef _ZAURUS
void DrawTile (uint32 Tile, uint32 Offset, uint32 StartLine,
uint32 LineCount, struct SGFX * gfx);
void DrawClippedTile (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Width,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawTilex2 (uint32 Tile, uint32 Offset, uint32 StartLine,
uint32 LineCount, struct SGFX * gfx);
void DrawClippedTilex2 (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Width,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawTilex2x2 (uint32 Tile, uint32 Offset, uint32 StartLine,
uint32 LineCount, struct SGFX * gfx);
void DrawClippedTilex2x2 (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Width,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawLargePixel (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Pixels,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
#endif
void DrawTile16 (uint32 Tile, uint32 Offset, uint32 StartLine,
uint32 LineCount, struct SGFX * gfx);
void DrawClippedTile16 (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Width,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawTile16x2 (uint32 Tile, uint32 Offset, uint32 StartLine,
uint32 LineCount, struct SGFX * gfx);
void DrawClippedTile16x2 (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Width,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawTile16x2x2 (uint32 Tile, uint32 Offset, uint32 StartLine,
uint32 LineCount, struct SGFX * gfx);
void DrawClippedTile16x2x2 (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Width,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawLargePixel16 (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Pixels,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawTile16Add (uint32 Tile, uint32 Offset, uint32 StartLine,
uint32 LineCount, struct SGFX * gfx);
void DrawClippedTile16Add (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Width,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawTile16Add1_2 (uint32 Tile, uint32 Offset, uint32 StartLine,
uint32 LineCount, struct SGFX * gfx);
void DrawClippedTile16Add1_2 (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Width,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawTile16FixedAdd1_2 (uint32 Tile, uint32 Offset, uint32 StartLine,
uint32 LineCount, struct SGFX * gfx);
void DrawClippedTile16FixedAdd1_2 (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Width,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawTile16Sub (uint32 Tile, uint32 Offset, uint32 StartLine,
uint32 LineCount, struct SGFX * gfx);
void DrawClippedTile16Sub (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Width,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawTile16Sub1_2 (uint32 Tile, uint32 Offset, uint32 StartLine,
uint32 LineCount, struct SGFX * gfx);
void DrawClippedTile16Sub1_2 (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Width,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawTile16FixedSub1_2 (uint32 Tile, uint32 Offset, uint32 StartLine,
uint32 LineCount, struct SGFX * gfx);
void DrawClippedTile16FixedSub1_2 (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Width,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawLargePixel16Add (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Pixels,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawLargePixel16Add1_2 (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Pixels,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawLargePixel16Sub (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Pixels,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
void DrawLargePixel16Sub1_2 (uint32 Tile, uint32 Offset,
uint32 StartPixel, uint32 Pixels,
uint32 StartLine, uint32 LineCount, struct SGFX * gfx);
bool8_32 S9xGraphicsInit ()
{
register uint32 PixelOdd = 1;
register uint32 PixelEven = 2;
#ifdef GFX_MULTI_FORMAT
if (GFX.BuildPixel == NULL)
S9xSetRenderPixelFormat (RGB565);
#endif
for (uint8 bitshift = 0; bitshift < 4; bitshift++)
{
for (register char i = 0; i < 16; i++)
{
register uint32 h = 0;
register uint32 l = 0;
#if defined(LSB_FIRST)
if (i & 8)
h |= PixelOdd;
if (i & 4)
h |= PixelOdd << 8;
if (i & 2)
h |= PixelOdd << 16;
if (i & 1)
h |= PixelOdd << 24;
if (i & 8)
l |= PixelOdd;
if (i & 4)
l |= PixelOdd << 8;
if (i & 2)
l |= PixelOdd << 16;
if (i & 1)
l |= PixelOdd << 24;
#else
if (i & 8)
h |= (PixelOdd << 24);
if (i & 4)
h |= (PixelOdd << 16);
if (i & 2)
h |= (PixelOdd << 8);
if (i & 1)
h |= PixelOdd;
if (i & 8)
l |= (PixelOdd << 24);
if (i & 4)
l |= (PixelOdd << 16);
if (i & 2)
l |= (PixelOdd << 8);
if (i & 1)
l |= PixelOdd;
#endif
odd_high[bitshift][i] = h;
odd_low[bitshift][i] = l;
h = l = 0;
#if defined(LSB_FIRST)
if (i & 8)
h |= PixelEven;
if (i & 4)
h |= PixelEven << 8;
if (i & 2)
h |= PixelEven << 16;
if (i & 1)
h |= PixelEven << 24;
if (i & 8)
l |= PixelEven;
if (i & 4)
l |= PixelEven << 8;
if (i & 2)
l |= PixelEven << 16;
if (i & 1)
l |= PixelEven << 24;
#else
if (i & 8)
h |= (PixelEven << 24);
if (i & 4)
h |= (PixelEven << 16);
if (i & 2)
h |= (PixelEven << 8);
if (i & 1)
h |= PixelEven;
if (i & 8)
l |= (PixelEven << 24);
if (i & 4)
l |= (PixelEven << 16);
if (i & 2)
l |= (PixelEven << 8);
if (i & 1)
l |= PixelEven;
#endif
even_high[bitshift][i] = h;
even_low[bitshift][i] = l;
}
PixelEven <<= 2;
PixelOdd <<= 2;
}
GFX.RealPitch = GFX.Pitch2 = GFX.Pitch;
GFX.ZPitch = GFX.Pitch;
if (Settings.SixteenBit)
GFX.ZPitch >>= 1;
GFX.Delta = (GFX.SubScreen - GFX.Screen) >> 1;
GFX.DepthDelta = GFX.SubZBuffer - GFX.ZBuffer;
//GFX.InfoStringTimeout = 0;
//GFX.InfoString = NULL;
PPU.BG_Forced = 0;
IPPU.OBJChanged = TRUE;
if (Settings.Transparency)
Settings.SixteenBit = TRUE;
IPPU.DirectColourMapsNeedRebuild = TRUE;
GFX.PixSize = 1;
#ifndef _ZAURUS
if (Settings.SixteenBit)
{
#endif
DrawTilePtr = DrawTile16;
DrawClippedTilePtr = DrawClippedTile16;
DrawLargePixelPtr = DrawLargePixel16;
DrawHiResTilePtr= DrawTile16;
DrawHiResClippedTilePtr = DrawClippedTile16;
GFX.PPL = GFX.Pitch >> 1;
GFX.PPLx2 = GFX.Pitch;
#ifndef _ZAURUS
}
else
{
DrawTilePtr = DrawTile;
DrawClippedTilePtr = DrawClippedTile;
DrawLargePixelPtr = DrawLargePixel;
DrawHiResTilePtr = DrawTile;
DrawHiResClippedTilePtr = DrawClippedTile;
GFX.PPL = GFX.Pitch;
GFX.PPLx2 = GFX.Pitch * 2;
}
#endif
S9xFixColourBrightness ();
if (Settings.SixteenBit)
{
if (!(GFX.X2 = (uint16 *) malloc (sizeof (uint16) * 0x10000)))
return (FALSE);
if (!(GFX.ZERO_OR_X2 = (uint16 *) malloc (sizeof (uint16) * 0x10000)) ||
!(GFX.ZERO = (uint16 *) malloc (sizeof (uint16) * 0x10000)))
{
if (GFX.ZERO_OR_X2)
{
free ((char *) GFX.ZERO_OR_X2);
GFX.ZERO_OR_X2 = NULL;
}
if (GFX.X2)
{
free ((char *) GFX.X2);
GFX.X2 = NULL;
}
return (FALSE);
}
uint32 r, g, b;
// Build a lookup table that multiplies a packed RGB value by 2 with
// saturation.
for (r = 0; r <= MAX_RED; r++)
{
uint32 r2 = r << 1;
if (r2 > MAX_RED)
r2 = MAX_RED;
for (g = 0; g <= MAX_GREEN; g++)
{
uint32 g2 = g << 1;
if (g2 > MAX_GREEN)
g2 = MAX_GREEN;
for (b = 0; b <= MAX_BLUE; b++)
{
uint32 b2 = b << 1;
if (b2 > MAX_BLUE)
b2 = MAX_BLUE;
GFX.X2 [BUILD_PIXEL2 (r, g, b)] = BUILD_PIXEL2 (r2, g2, b2);
GFX.X2 [BUILD_PIXEL2 (r, g, b) & ~ALPHA_BITS_MASK] = BUILD_PIXEL2 (r2, g2, b2);
}
}
}
ZeroMemory (GFX.ZERO, 0x10000 * sizeof (uint16));
ZeroMemory (GFX.ZERO_OR_X2, 0x10000 * sizeof (uint16));
// Build a lookup table that if the top bit of the color value is zero
// then the value is zero, otherwise multiply the value by 2. Used by
// the color subtraction code.
#if defined(OLD_COLOUR_BLENDING)
for (r = 0; r <= MAX_RED; r++)
{
uint32 r2 = r;
if ((r2 & 0x10) == 0)
r2 = 0;
else
r2 = (r2 << 1) & MAX_RED;
for (g = 0; g <= MAX_GREEN; g++)
{
uint32 g2 = g;
if ((g2 & GREEN_HI_BIT) == 0)
g2 = 0;
else
g2 = (g2 << 1) & MAX_GREEN;
for (b = 0; b <= MAX_BLUE; b++)
{
uint32 b2 = b;
if ((b2 & 0x10) == 0)
b2 = 0;
else
b2 = (b2 << 1) & MAX_BLUE;
GFX.ZERO_OR_X2 [BUILD_PIXEL2 (r, g, b)] = BUILD_PIXEL2 (r2, g2, b2);
GFX.ZERO_OR_X2 [BUILD_PIXEL2 (r, g, b) & ~ALPHA_BITS_MASK] = BUILD_PIXEL2 (r2, g2, b2);
}
}
}
#else
for (r = 0; r <= MAX_RED; r++)
{
uint32 r2 = r;
if ((r2 & 0x10) == 0)
r2 = 0;
else
r2 = (r2 << 1) & MAX_RED;
if (r2 == 0)
r2 = 1;
for (g = 0; g <= MAX_GREEN; g++)
{
uint32 g2 = g;
if ((g2 & GREEN_HI_BIT) == 0)
g2 = 0;
else
g2 = (g2 << 1) & MAX_GREEN;
if (g2 == 0)
g2 = 1;
for (b = 0; b <= MAX_BLUE; b++)
{
uint32 b2 = b;
if ((b2 & 0x10) == 0)
b2 = 0;
else
b2 = (b2 << 1) & MAX_BLUE;
if (b2 == 0)
b2 = 1;
GFX.ZERO_OR_X2 [BUILD_PIXEL2 (r, g, b)] = BUILD_PIXEL2 (r2, g2, b2);
GFX.ZERO_OR_X2 [BUILD_PIXEL2 (r, g, b) & ~ALPHA_BITS_MASK] = BUILD_PIXEL2 (r2, g2, b2);
}
}
}
#endif
// Build a lookup table that if the top bit of the color value is zero
// then the value is zero, otherwise its just the value.
for (r = 0; r <= MAX_RED; r++)
{
uint32 r2 = r;
if ((r2 & 0x10) == 0)
r2 = 0;
else
r2 &= ~0x10;
for (g = 0; g <= MAX_GREEN; g++)
{
uint32 g2 = g;
if ((g2 & GREEN_HI_BIT) == 0)
g2 = 0;
else
g2 &= ~GREEN_HI_BIT;
for (b = 0; b <= MAX_BLUE; b++)
{
uint32 b2 = b;
if ((b2 & 0x10) == 0)
b2 = 0;
else
b2 &= ~0x10;
GFX.ZERO [BUILD_PIXEL2 (r, g, b)] = BUILD_PIXEL2 (r2, g2, b2);
GFX.ZERO [BUILD_PIXEL2 (r, g, b) & ~ALPHA_BITS_MASK] = BUILD_PIXEL2 (r2, g2, b2);
}
}
}
}
else
{
GFX.X2 = NULL;
GFX.ZERO_OR_X2 = NULL;
GFX.ZERO = NULL;
}
return (TRUE);
}
void S9xGraphicsDeinit (void)
{
// Free any memory allocated in S9xGraphicsInit
if (GFX.X2)
{
free ((char *) GFX.X2);
GFX.X2 = NULL;
}
if (GFX.ZERO_OR_X2)
{
free ((char *) GFX.ZERO_OR_X2);
GFX.ZERO_OR_X2 = NULL;
}
if (GFX.ZERO)
{
free ((char *) GFX.ZERO);
GFX.ZERO = NULL;
}
}
void S9xBuildDirectColourMaps ()
{
for (register uint32 p = 0; p < 8; p++)
{
for (register uint32 c = 0; c < 256; c++)
{
// XXX: Brightness
DirectColourMaps [p][c] = ((int)(((c & 7) << 2) | ((p & 1) << 1) << 11)) |
((int)(((c & 0x38) >> 1) | (p & 2) << 6)) |
(int)(((c & 0xc0) >> 3) | (p & 4));
// DirectColourMaps [p][c] = BUILD_PIXEL (((c & 7) << 2) | ((p & 1) << 1),
// ((c & 0x38) >> 1) | (p & 2),
// ((c & 0xc0) >> 3) | (p & 4));
}
}
IPPU.DirectColourMapsNeedRebuild = FALSE;
}
void S9xStartScreenRefresh ()
{
struct SPPU * ppu = &PPU;
struct InternalPPU *ippu = &IPPU;
struct SGFX * gfx = &GFX;
if (gfx->InfoStringTimeout > 0 && --gfx->InfoStringTimeout == 0)
gfx->InfoString = NULL;
if (ippu->RenderThisFrame)
{
#ifndef _ZAURUS
if (!S9xInitUpdate ())
{
ippu->RenderThisFrame = FALSE;
return;
}
#endif
ippu->RenderedFramesCount++;
ippu->PreviousLine = ippu->CurrentLine = 0;
ippu->MaxBrightness = ppu->Brightness;
ippu->LatchedBlanking = ppu->ForcedBlanking;
ippu->LatchedInterlace = (Memory.FillRAM[0x2133] & 1);
if (Settings.SupportHiRes && (ppu->BGMode == 5 || ppu->BGMode == 6 ||
ippu->LatchedInterlace))
{
if (ppu->BGMode == 5 || ppu->BGMode == 6)
{
ippu->RenderedScreenWidth = 512;
ippu->DoubleWidthPixels = TRUE;
}
if (ippu->LatchedInterlace)
{
ippu->RenderedScreenHeight = ppu->ScreenHeight << 1;
gfx->Pitch2 = gfx->RealPitch;
gfx->Pitch = gfx->RealPitch * 2;
if (Settings.SixteenBit)
gfx->PPL = gfx->PPLx2 = gfx->RealPitch;
else
gfx->PPL = gfx->PPLx2 = gfx->RealPitch << 1;
}
else
{
ippu->RenderedScreenHeight = ppu->ScreenHeight;
gfx->Pitch2 = gfx->Pitch = gfx->RealPitch;
if (Settings.SixteenBit)
gfx->PPL = gfx->Pitch >> 1;
else
gfx->PPL = gfx->Pitch;
gfx->PPLx2 = gfx->PPL << 1;
}
#if defined(USE_GLIDE) || defined(USE_OPENGL)
gfx->ZPitch = gfx->RealPitch;
if (Settings.SixteenBit)
gfx->ZPitch >>= 1;
#endif
}
else
{
ippu->RenderedScreenWidth = 256;
ippu->RenderedScreenHeight = ppu->ScreenHeight;
ippu->DoubleWidthPixels = FALSE;
#ifdef USE_GLIDE
if (Settings.GlideEnable)
{
// Speed up hack for Glide: render low res. SNES images
// into a handy 256x256 sized buffer that can be uploaded into
// texture memory with one Glide call without having to copy it
// into a second, suitably sized buffer first.
gfx->Pitch2 = gfx->Pitch = 256 * sizeof (uint16);
gfx->PPL = 256;
gfx->PPLx2 = gfx->Pitch;
gfx->ZPitch = 256;
}
else
#endif
#ifdef USE_OPENGL
if (Settings.OpenGLEnable)
{
gfx->Pitch2 = gfx->Pitch = 256 * sizeof (uint16);
gfx->PPL = 256;
gfx->PPLx2 = gfx->Pitch;
gfx->ZPitch = 256;
}
else
#endif
{
if (Settings.SupportHiRes) {
gfx->Pitch2 = gfx->Pitch = gfx->RealPitch;
gfx->PPL = gfx->PPLx2 >> 1;
gfx->ZPitch = gfx->RealPitch;
if (Settings.SixteenBit)
gfx->ZPitch >>= 1;
} else {
gfx->Pitch2 = gfx->Pitch = 640;
gfx->PPL = 320;
gfx->PPLx2 = 640;
gfx->ZPitch = 320;
}
}
}
ppu->RecomputeClipWindows = TRUE;
gfx->DepthDelta = gfx->SubZBuffer - gfx->ZBuffer;
gfx->Delta = (gfx->SubScreen - gfx->Screen) >> 1;
}
if (++ippu->FrameCount % Memory.ROMFramesPerSecond == 0)
{
ippu->DisplayedRenderedFrameCount = ippu->RenderedFramesCount;
ippu->RenderedFramesCount = 0;
ippu->FrameCount = 0;
}
}
void RenderLine (uint8 C, struct SPPU *ppu)
{
struct SLineData *ln = &LineData[C];
if (IPPU.RenderThisFrame)
{
ln->BG[0].VOffset = ppu->BG[0].VOffset + 1;
ln->BG[0].HOffset = ppu->BG[0].HOffset;
ln->BG[1].VOffset = ppu->BG[1].VOffset + 1;
ln->BG[1].HOffset = ppu->BG[1].HOffset;
if (ppu->BGMode == 7)
{
struct SLineMatrixData *p = &LineMatrixData [C];
p->MatrixA = ppu->MatrixA;
p->MatrixB = ppu->MatrixB;
p->MatrixC = ppu->MatrixC;
p->MatrixD = ppu->MatrixD;
p->CentreX = ppu->CentreX;
p->CentreY = ppu->CentreY;
}
else
{
//#ifndef _ZAURUS
if (Settings.StarfoxHack && ppu->BG[2].VOffset == 0 &&
ppu->BG[2].HOffset == 0xe000)
{
ln->BG[2].VOffset = 0xe1;
ln->BG[2].HOffset = 0;
}
else
//#endif
{
ln->BG[2].VOffset = ppu->BG[2].VOffset + 1;
ln->BG[2].HOffset = ppu->BG[2].HOffset;
ln->BG[3].VOffset = ppu->BG[3].VOffset + 1;
ln->BG[3].HOffset = ppu->BG[3].HOffset;
}
}
IPPU.CurrentLine = C + 1;
}
}
void S9xEndScreenRefresh(struct SPPU *ppu)
{
struct InternalPPU *ippu = &IPPU;
struct SGFX *gfx = &GFX;
ippu->HDMAStarted = FALSE;
if (ippu->RenderThisFrame)
{
FLUSH_REDRAW ();
if (ippu->ColorsChanged)
{
uint32 saved = ppu->CGDATA[0];
#ifndef _ZAURUS
if (!Settings.SixteenBit)
{
// Hack for Super Mario World - to get its sky blue
// (It uses Fixed colour addition on the backdrop colour)
if (!(Memory.FillRAM [0x2131] & 0x80) &&
(Memory.FillRAM[0x2131] & 0x20) &&
(ppu->FixedColourRed || ppu->FixedColourGreen ||
ppu->FixedColourBlue))
{
ppu->CGDATA[0] = ppu->FixedColourRed |
(ppu->FixedColourGreen << 5) |
(ppu->FixedColourBlue << 10);
}
}
#endif
ippu->ColorsChanged = FALSE;
S9xSetPalette ();
ppu->CGDATA[0] = saved;
}
if (
#ifdef USE_GLIDE
!Settings.GlideEnable &&
#endif
#ifdef USE_OPENGL
!Settings.OpenGLEnable &&
#endif
TRUE)
{
gfx->Pitch = gfx->Pitch2 = gfx->RealPitch;
gfx->PPL = gfx->PPLx2 >> 1;
}
// if (Settings.DisplayFrameRate)
// S9xDisplayFrameRate ();
// if (gfx->InfoString)
// S9xDisplayString (gfx->InfoString);
S9xDeinitUpdate (ippu->RenderedScreenWidth, ippu->RenderedScreenHeight);
}
#ifdef CHEATS
S9xApplyCheats ();
#endif
#ifdef DEBUGGER
if (CPU.Flags & FRAME_ADVANCE_FLAG)
{
if (ICPU.FrameAdvanceCount)
{
ICPU.FrameAdvanceCount--;
ippu->RenderThisFrame = TRUE;
ippu->FrameSkip = 0;
}
else
{
CPU.Flags &= ~FRAME_ADVANCE_FLAG;
CPU.Flags |= DEBUG_MODE_FLAG;
}
}
#endif
if (CPU.SRAMModified)
{
if (!CPU.AutoSaveTimer)
{
if (!(CPU.AutoSaveTimer = Settings.AutoSaveDelay * Memory.ROMFramesPerSecond))
CPU.SRAMModified = FALSE;
}
else
{
if (!--CPU.AutoSaveTimer)
{
S9xAutoSaveSRAM ();
CPU.SRAMModified = FALSE;
}
}
}
}
void S9xSetInfoString (const char *string)
{
GFX.InfoString = string;
GFX.InfoStringTimeout = 120;
}
inline void SelectTileRenderer (bool8_32 normal)
{
struct SGFX * gfx = &GFX;
if (normal)
{
DrawTilePtr = DrawTile16;
DrawClippedTilePtr = DrawClippedTile16;
DrawLargePixelPtr = DrawLargePixel16;
}
else
{
if (gfx->r2131 & 0x80)
{
if (gfx->r2131 & 0x40)
{
if (gfx->r2130 & 2)
{
DrawTilePtr = DrawTile16Sub1_2;
DrawClippedTilePtr = DrawClippedTile16Sub1_2;
}
else
{
// Fixed colour substraction
DrawTilePtr = DrawTile16FixedSub1_2;
DrawClippedTilePtr = DrawClippedTile16FixedSub1_2;
}
DrawLargePixelPtr = DrawLargePixel16Sub1_2;
}
else
{
DrawTilePtr = DrawTile16Sub;
DrawClippedTilePtr = DrawClippedTile16Sub;
DrawLargePixelPtr = DrawLargePixel16Sub;
}
}
else
{
if (gfx->r2131 & 0x40)
{
if (gfx->r2130 & 2)
{
DrawTilePtr = DrawTile16Add1_2;
DrawClippedTilePtr = DrawClippedTile16Add1_2;
}
else
{
// Fixed colour addition
DrawTilePtr = DrawTile16FixedAdd1_2;
DrawClippedTilePtr = DrawClippedTile16FixedAdd1_2;
}
DrawLargePixelPtr = DrawLargePixel16Add1_2;
}
else
{
DrawTilePtr = DrawTile16Add;
DrawClippedTilePtr = DrawClippedTile16Add;
DrawLargePixelPtr = DrawLargePixel16Add;
}
}
}
}
void S9xSetupOBJ ()
{
int SmallSize;
int LargeSize;
struct SPPU * ppu = &PPU;
struct SGFX * gfx = &GFX;
switch (ppu->OBJSizeSelect)
{
case 0:
SmallSize = 8;
LargeSize = 16;
break;
case 1:
SmallSize = 8;
LargeSize = 32;
break;
case 2:
SmallSize = 8;
LargeSize = 64;
break;
case 3:
SmallSize = 16;
LargeSize = 32;
break;
case 4:
SmallSize = 16;
LargeSize = 64;
break;
case 5:
default:
SmallSize = 32;
LargeSize = 64;
break;
}
int C = 0;
int FirstSprite = ppu->FirstSprite & 0x7f;
int S = FirstSprite;
do
{
int Size;
if (ppu->OBJ [S].Size)
Size = LargeSize;
else
Size = SmallSize;
long VPos = ppu->OBJ [S].VPos;
if (VPos >= ppu->ScreenHeight)
VPos -= 256;
if (ppu->OBJ [S].HPos < 256 && ppu->OBJ [S].HPos > -Size &&
VPos < ppu->ScreenHeight && VPos > -Size)
{
gfx->OBJList [C++] = S;
gfx->Sizes[S] = Size;
gfx->VPositions[S] = VPos;
}
S = (S + 1) & 0x7f;
} while (S != FirstSprite);
// Terminate the list
gfx->OBJList [C] = -1;
IPPU.OBJChanged = FALSE;
}
void DrawOBJS (bool8_32 OnMain = FALSE, uint8 D = 0)
{
uint32 O;
uint32 BaseTile, Tile;
struct SPPU * ppu = &PPU;
struct SGFX * gfx = &GFX;
CHECK_SOUND();
BG.BitShift = 4;
BG.TileShift = 5;
BG.TileAddress = ppu->OBJNameBase;
BG.StartPalette = 128;
BG.PaletteShift = 4;
BG.PaletteMask = 7;
BG.Buffer = IPPU.TileCache [TILE_4BIT];
BG.Buffered = IPPU.TileCached [TILE_4BIT];
BG.NameSelect = ppu->OBJNameSelect;
BG.DirectColourMode = FALSE;
gfx->PixSize = 1;
if (Settings.SupportHiRes)
{
if (ppu->BGMode == 5 || ppu->BGMode == 6)
{
gfx->PixSize = 2;
if (IPPU.LatchedInterlace)
{
#ifndef _ZAURUS
if (Settings.SixteenBit)
#endif
{
DrawTilePtr = DrawTile16x2x2;
DrawClippedTilePtr = DrawClippedTile16x2x2;
}
#ifndef _ZAURUS
else
{
DrawTilePtr = DrawTilex2x2;
DrawClippedTilePtr = DrawClippedTilex2x2;
}
#endif
}
else
{
#ifndef _ZAURUS
if (Settings.SixteenBit)
#endif
{
DrawTilePtr = DrawTile16x2;
DrawClippedTilePtr = DrawClippedTile16x2;
}
#ifndef _ZAURUS
else
{
DrawTilePtr = DrawTilex2;
DrawClippedTilePtr = DrawClippedTilex2;
}
#endif
}
}
else
{
#ifndef _ZAURUS
if (Settings.SixteenBit)
#endif
{
DrawTilePtr = DrawTile16;
DrawClippedTilePtr = DrawClippedTile16;