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-rw-r--r--source/gfx.h293
1 files changed, 150 insertions, 143 deletions
diff --git a/source/gfx.h b/source/gfx.h
index 8280987..55b31bf 100644
--- a/source/gfx.h
+++ b/source/gfx.h
@@ -1,6 +1,6 @@
/*******************************************************************************
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
-
+
(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
Jerremy Koot (jkoot@snes9x.com)
@@ -43,46 +43,46 @@
S-DD1 C emulator code
(c) Copyright 2003 Brad Jorsch with research by
Andreas Naive and John Weidman
-
+
S-RTC C emulator code
(c) Copyright 2001 John Weidman
-
+
ST010 C++ emulator code
(c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora
- Super FX x86 assembler emulator code
- (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault
+ Super FX x86 assembler emulator code
+ (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault
- Super FX C emulator code
+ Super FX C emulator code
(c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman
SH assembler code partly based on x86 assembler code
- (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
+ (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
+
-
Specific ports 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.
*******************************************************************************/
@@ -93,83 +93,88 @@
#include "port.h"
#include "snes9x.h"
-void S9xStartScreenRefresh ();
-void S9xDrawScanLine (uint8 Line);
-void S9xEndScreenRefresh ();
-void S9xSetupOBJ ();
-void S9xUpdateScreen ();
-void RenderLine (uint8 line);
-void S9xBuildDirectColourMaps ();
+void S9xStartScreenRefresh();
+void S9xDrawScanLine(uint8 Line);
+void S9xEndScreenRefresh();
+void S9xSetupOBJ();
+void S9xUpdateScreen();
+void RenderLine(uint8 line);
+void S9xBuildDirectColourMaps();
// External port interface which must be implemented or initialised for each
// port.
extern struct SGFX GFX;
-bool8 S9xGraphicsInit ();
+bool8 S9xGraphicsInit();
void S9xGraphicsDeinit();
-bool8 S9xInitUpdate (void);
-void S9xDeinitUpdate (int width, int height);
-void S9xSyncSpeed ();
-
-struct SGFX{
- // Initialize these variables
- uint8 *Screen;
- uint8 *SubScreen;
- uint8 *ZBuffer;
- uint8 *SubZBuffer;
- uint32 Pitch;
-
- // Setup in call to S9xGraphicsInit()
- int Delta;
- uint16 *X2;
- uint16 *ZERO_OR_X2;
- uint16 *ZERO;
- uint32 RealPitch; // True pitch of Screen buffer.
- uint32 Pitch2; // Same as RealPitch except while using speed up hack for Glide.
- uint32 ZPitch; // Pitch of ZBuffer
- uint32 PPL; // Number of pixels on each of Screen buffer
- uint32 PPLx2;
- uint32 PixSize;
- uint8 S_safety_margin[8];
- uint8 *S;
- uint8 DB_safety_margin[8];
- uint8 *DB;
- uint32 DepthDelta;
- uint8 Z1; // Depth for comparison
- uint8 Z2; // Depth to save
- uint8 ZSprite; // Used to ensure only 1st sprite is drawn per pixel
- uint32 FixedColour;
- const char *InfoString;
- uint32 InfoStringTimeout;
- uint32 StartY;
- uint32 EndY;
- struct ClipData *pCurrentClip;
- uint32 Mode7Mask;
- uint32 Mode7PriorityMask;
- uint8 OBJWidths[128];
- uint8 OBJVisibleTiles[128];
- struct {
- uint8 RTOFlags;
- int16 Tiles;
- struct {
- int8 Sprite;
- uint8 Line;
- } OBJ[32];
- } OBJLines [SNES_HEIGHT_EXTENDED];
-
- uint8 r212c;
- uint8 r212d;
- uint8 r2130;
- uint8 r2131;
- bool8 Pseudo;
-
+bool8 S9xInitUpdate(void);
+void S9xDeinitUpdate(int width, int height);
+void S9xSyncSpeed();
+
+struct SGFX
+{
+ // Initialize these variables
+ uint8* Screen;
+ uint8* SubScreen;
+ uint8* ZBuffer;
+ uint8* SubZBuffer;
+ uint32 Pitch;
+
+ // Setup in call to S9xGraphicsInit()
+ int Delta;
+ uint16* X2;
+ uint16* ZERO_OR_X2;
+ uint16* ZERO;
+ uint32 RealPitch; // True pitch of Screen buffer.
+ uint32 Pitch2; // Same as RealPitch except while using speed up hack for Glide.
+ uint32 ZPitch; // Pitch of ZBuffer
+ uint32 PPL; // Number of pixels on each of Screen buffer
+ uint32 PPLx2;
+ uint32 PixSize;
+ uint8 S_safety_margin[8];
+ uint8* S;
+ uint8 DB_safety_margin[8];
+ uint8* DB;
+ uint32 DepthDelta;
+ uint8 Z1; // Depth for comparison
+ uint8 Z2; // Depth to save
+ uint8 ZSprite; // Used to ensure only 1st sprite is drawn per pixel
+ uint32 FixedColour;
+ const char* InfoString;
+ uint32 InfoStringTimeout;
+ uint32 StartY;
+ uint32 EndY;
+ struct ClipData* pCurrentClip;
+ uint32 Mode7Mask;
+ uint32 Mode7PriorityMask;
+ uint8 OBJWidths[128];
+ uint8 OBJVisibleTiles[128];
+ struct
+ {
+ uint8 RTOFlags;
+ int16 Tiles;
+ struct
+ {
+ int8 Sprite;
+ uint8 Line;
+ } OBJ[32];
+ } OBJLines [SNES_HEIGHT_EXTENDED];
+
+ uint8 r212c;
+ uint8 r212d;
+ uint8 r2130;
+ uint8 r2131;
+ bool8 Pseudo;
+
};
-struct SLineData {
- struct {
- uint16 VOffset;
- uint16 HOffset;
- } BG [4];
+struct SLineData
+{
+ struct
+ {
+ uint16 VOffset;
+ uint16 HOffset;
+ } BG [4];
};
#define H_FLIP 0x4000
@@ -178,30 +183,30 @@ struct SLineData {
typedef struct
{
- uint32 TileSize;
- uint32 BitShift;
- uint32 TileShift;
- uint32 TileAddress;
- uint32 NameSelect;
- uint32 SCBase;
-
- uint32 StartPalette;
- uint32 PaletteShift;
- uint32 PaletteMask;
-
- uint8 *Buffer;
- uint8 *Buffered;
- bool8 DirectColourMode;
-}SBG;
+ uint32 TileSize;
+ uint32 BitShift;
+ uint32 TileShift;
+ uint32 TileAddress;
+ uint32 NameSelect;
+ uint32 SCBase;
+
+ uint32 StartPalette;
+ uint32 PaletteShift;
+ uint32 PaletteMask;
+
+ uint8* Buffer;
+ uint8* Buffered;
+ bool8 DirectColourMode;
+} SBG;
struct SLineMatrixData
{
- short MatrixA;
- short MatrixB;
- short MatrixC;
- short MatrixD;
- short CentreX;
- short CentreY;
+ short MatrixA;
+ short MatrixB;
+ short MatrixC;
+ short MatrixD;
+ short CentreX;
+ short CentreY;
};
extern uint32 odd_high [4][16];
@@ -219,7 +224,7 @@ extern uint8 mul_brightness [16][32];
// Could use BSWAP instruction on Intel port...
#define SWAP_DWORD(dw) dw = ((dw & 0xff) << 24) | ((dw & 0xff00) << 8) | \
- ((dw & 0xff0000) >> 8) | ((dw & 0xff000000) >> 24)
+ ((dw & 0xff0000) >> 8) | ((dw & 0xff000000) >> 24)
#ifdef FAST_LSB_WORD_ACCESS
#define READ_2BYTES(s) (*(uint16 *) (s))
@@ -228,11 +233,11 @@ extern uint8 mul_brightness [16][32];
#ifdef LSB_FIRST
#define READ_2BYTES(s) (*(uint8 *) (s) | (*((uint8 *) (s) + 1) << 8))
#define WRITE_2BYTES(s, d) *(uint8 *) (s) = (d), \
- *((uint8 *) (s) + 1) = (d) >> 8
+ *((uint8 *) (s) + 1) = (d) >> 8
#else // else MSB_FISRT
#define READ_2BYTES(s) (*(uint8 *) (s) | (*((uint8 *) (s) + 1) << 8))
#define WRITE_2BYTES(s, d) *(uint8 *) (s) = (d), \
- *((uint8 *) (s) + 1) = (d) >> 8
+ *((uint8 *) (s) + 1) = (d) >> 8
#endif // LSB_FIRST
#endif // i386
@@ -242,19 +247,21 @@ extern uint8 mul_brightness [16][32];
#if defined(OLD_COLOUR_BLENDING)
#define COLOR_ADD(C1, C2) \
GFX.X2 [((((C1) & RGB_REMOVE_LOW_BITS_MASK) + \
- ((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1) + \
- ((C1) & (C2) & RGB_LOW_BITS_MASK)]
+ ((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1) + \
+ ((C1) & (C2) & RGB_LOW_BITS_MASK)]
#else
-static inline uint16 COLOR_ADD (uint16, uint16);
+static inline uint16 COLOR_ADD(uint16, uint16);
-static inline uint16 COLOR_ADD (uint16 C1, uint16 C2)
+static inline uint16 COLOR_ADD(uint16 C1, uint16 C2)
{
- if (C1 == 0)
- return C2;
- else if (C2 == 0)
- return C1;
- else
- return GFX.X2 [(((C1 & RGB_REMOVE_LOW_BITS_MASK) + (C2 & RGB_REMOVE_LOW_BITS_MASK)) >> 1) + (C1 & C2 & RGB_LOW_BITS_MASK)] | ((C1 ^ C2) & RGB_LOW_BITS_MASK);
+ if (C1 == 0)
+ return C2;
+ else if (C2 == 0)
+ return C1;
+ else
+ return GFX.X2 [(((C1 & RGB_REMOVE_LOW_BITS_MASK) + (C2 &
+ RGB_REMOVE_LOW_BITS_MASK)) >> 1) + (C1 & C2 & RGB_LOW_BITS_MASK)] | ((
+ C1 ^ C2) & RGB_LOW_BITS_MASK);
}
#endif
@@ -266,7 +273,7 @@ static inline uint16 COLOR_ADD (uint16 C1, uint16 C2)
#if defined(OLD_COLOUR_BLENDING)
#define COLOR_SUB(C1, C2) \
GFX.ZERO_OR_X2 [(((C1) | RGB_HI_BITS_MASKx2) - \
- ((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1]
+ ((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1]
#elif !defined(NEW_COLOUR_BLENDING)
#define COLOR_SUB(C1, C2) \
(GFX.ZERO_OR_X2 [(((C1) | RGB_HI_BITS_MASKx2) - \
@@ -277,36 +284,36 @@ inline uint16 COLOR_SUB(uint16, uint16);
inline uint16 COLOR_SUB(uint16 C1, uint16 C2)
{
- uint16 mC1, mC2, v = 0;
-
- mC1 = C1 & FIRST_COLOR_MASK;
- mC2 = C2 & FIRST_COLOR_MASK;
- if (mC1 > mC2) v += (mC1 - mC2);
-
- mC1 = C1 & SECOND_COLOR_MASK;
- mC2 = C2 & SECOND_COLOR_MASK;
- if (mC1 > mC2) v += (mC1 - mC2);
-
- mC1 = C1 & THIRD_COLOR_MASK;
- mC2 = C2 & THIRD_COLOR_MASK;
- if (mC1 > mC2) v += (mC1 - mC2);
-
- return v;
+ uint16 mC1, mC2, v = 0;
+
+ mC1 = C1 & FIRST_COLOR_MASK;
+ mC2 = C2 & FIRST_COLOR_MASK;
+ if (mC1 > mC2) v += (mC1 - mC2);
+
+ mC1 = C1 & SECOND_COLOR_MASK;
+ mC2 = C2 & SECOND_COLOR_MASK;
+ if (mC1 > mC2) v += (mC1 - mC2);
+
+ mC1 = C1 & THIRD_COLOR_MASK;
+ mC2 = C2 & THIRD_COLOR_MASK;
+ if (mC1 > mC2) v += (mC1 - mC2);
+
+ return v;
}
#endif
#define COLOR_SUB1_2(C1, C2) \
GFX.ZERO [(((C1) | RGB_HI_BITS_MASKx2) - \
- ((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1]
-
-typedef void (*NormalTileRenderer) (uint32 Tile, int32 Offset,
- uint32 StartLine, uint32 LineCount);
-typedef void (*ClippedTileRenderer) (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Width,
- uint32 StartLine, uint32 LineCount);
-typedef void (*LargePixelRenderer) (uint32 Tile, int32 Offset,
- uint32 StartPixel, uint32 Pixels,
- uint32 StartLine, uint32 LineCount);
+ ((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1]
+
+typedef void (*NormalTileRenderer)(uint32 Tile, int32 Offset,
+ uint32 StartLine, uint32 LineCount);
+typedef void (*ClippedTileRenderer)(uint32 Tile, int32 Offset,
+ uint32 StartPixel, uint32 Width,
+ uint32 StartLine, uint32 LineCount);
+typedef void (*LargePixelRenderer)(uint32 Tile, int32 Offset,
+ uint32 StartPixel, uint32 Pixels,
+ uint32 StartLine, uint32 LineCount);
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 02:58:11 +0000