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reactos/sdk/tools/gendib/gendib.c

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/*
* Copyright 2005 Ge van Geldorp (gvg@reactos.com).
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* This is a code generator. It outputs C code which can be compiled using the
* standard build tools. It is used to generate code for the DIB Blt routines.
* There are a lot of possible Blt routines (256 rop codes, for 6 different
* bit depths). It is possible to use a generic Blt routine which handles all
* rop codes and all depths. The drawback is that it will be relatively slow.
* The other extreme is to write (generate) a separate Blt routine for each
* rop code/depth combination. This will result in a extremely large amount
* of code. So, we opt for something in between: named rops get their own
* routine, unnamed rops are handled by a generic routine.
* Basically, what happens is that generic code which looks like:
*
* for (...)
* {
* if (CondA)
* {
* doSomethingA;
* }
* for (...)
* {
* if (CondB)
* {
* doSomethingB;
* }
* else
* {
* doSomethingElseB;
* }
* }
* }
*
* is specialized for named rops to look like:
*
* if (condC)
* {
* if (condD)
* {
* for (...)
* {
* for (...)
* {
* pumpSomeBytes;
* }
* }
* }
* else
* {
* for (...)
* {
* for (...)
* {
* pumpSomeBytesSlightlyDifferentE;
* }
* }
* }
* }
*
* i.e. we make the inner loops as tight as possible.
* Another optimization is to try to load/store 32 alligned bits at a time from
* video memory. Accessing video memory from the CPU is slooooooow, so let's
* try to do this as little as possible, even if that means we have to do some
* extra operations using main memory.
*/
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define NDEBUG
#define USES_DEST(RopCode) ((((RopCode) & 0xaa) >> 1) != ((RopCode) & 0x55))
#define USES_SOURCE(RopCode) ((((RopCode) & 0xcc) >> 2) != ((RopCode) & 0x33))
#define USES_PATTERN(RopCode) ((((RopCode) & 0xf0) >> 4) != ((RopCode) & 0x0f))
#ifdef NDEBUG
#define MARK(Out)
#else
#define MARK(Out) Output((Out), "/* Generated by %s line %d*/\n", \
__FUNCTION__, __LINE__);
#endif
#define ROPCODE_BLACKNESS 0x00
#define ROPCODE_NOTSRCERASE 0x11
#define ROPCODE_NOTSRCCOPY 0x33
#define ROPCODE_SRCERASE 0x44
#define ROPCODE_DSTINVERT 0x55
#define ROPCODE_PATINVERT 0x5a
#define ROPCODE_SRCINVERT 0x66
#define ROPCODE_SRCAND 0x88
#define ROPCODE_NOOP 0xaa
#define ROPCODE_MERGEPAINT 0xbb
#define ROPCODE_MERGECOPY 0xc0
#define ROPCODE_SRCCOPY 0xcc
#define ROPCODE_SRCPAINT 0xee
#define ROPCODE_PATCOPY 0xf0
#define ROPCODE_PATPAINT 0xfb
#define ROPCODE_WHITENESS 0xff
#define ROPCODE_GENERIC 256 /* Special case */
typedef struct _ROPINFO
{
unsigned RopCode;
const char *Name;
const char *Operation;
int UsesDest;
int UsesSource;
int UsesPattern;
}
ROPINFO, *PROPINFO;
#define FLAG_PATTERNSURFACE 0x01
#define FLAG_TRIVIALXLATE 0x02
#define FLAG_BOTTOMUP 0x04
#define FLAG_FORCENOUSESSOURCE 0x08
#define FLAG_FORCERAWSOURCEAVAIL 0x10
static PROPINFO
FindRopInfo(unsigned RopCode)
{
static ROPINFO KnownCodes[] =
{
{ ROPCODE_BLACKNESS, "BLACKNESS", "0", 0, 0, 0 },
{ ROPCODE_NOTSRCERASE, "NOTSRCERASE","~(D | S)", 1, 1, 0 },
{ ROPCODE_NOTSRCCOPY, "NOTSRCCOPY", "~S", 0, 1, 0 },
{ ROPCODE_SRCERASE, "SRCERASE", "(~D) & S", 1, 1, 0 },
{ ROPCODE_DSTINVERT, "DSTINVERT", "~D", 1, 0, 0 },
{ ROPCODE_PATINVERT, "PATINVERT", "D ^ P", 1, 0, 1 },
{ ROPCODE_SRCINVERT, "SRCINVERT", "D ^ S", 1, 1, 0 },
{ ROPCODE_SRCAND, "SRCAND", "D & S", 1, 1, 0 },
{ ROPCODE_NOOP, "NOOP", "D", 1, 0, 0 },
{ ROPCODE_MERGEPAINT, "MERGEPAINT", "D | (~S)", 1, 1, 0 },
{ ROPCODE_MERGECOPY, "MERGECOPY", "S & P", 0, 1, 1 },
{ ROPCODE_SRCCOPY, "SRCCOPY", "S", 0, 1, 0 },
{ ROPCODE_SRCPAINT, "SRCPAINT", "D | S", 1, 1, 0 },
{ ROPCODE_PATCOPY, "PATCOPY", "P", 0, 0, 1 },
{ ROPCODE_PATPAINT, "PATPAINT", "D | (~S) | P", 1, 1, 1 },
{ ROPCODE_WHITENESS, "WHITENESS", "0xffffffff", 0, 0, 0 },
{ ROPCODE_GENERIC, NULL, NULL, 1, 1, 1 }
};
unsigned Index;
for (Index = 0; Index < sizeof(KnownCodes) / sizeof(KnownCodes[0]); Index++)
{
if (RopCode == KnownCodes[Index].RopCode)
{
return KnownCodes + Index;
}
}
return NULL;
}
static void
Output(FILE *Out, const char *Fmt, ...)
{
static unsigned Indent = 0;
static int AtBOL = 1;
unsigned n;
va_list Args;
if (strchr(Fmt, '}'))
{
Indent -= 4;
}
if (AtBOL)
{
for (n = 0; n < Indent; n++)
{
putc(' ', Out);
}
AtBOL = 0;
}
va_start(Args, Fmt);
vfprintf(Out, Fmt, Args);
va_end(Args);
if (strchr(Fmt, '{'))
{
Indent += 4;
}
AtBOL = '\n' == Fmt[strlen(Fmt) - 1];
}
static void
PrintRoutineName(FILE *Out, unsigned Bpp, PROPINFO RopInfo)
{
if (NULL != RopInfo && ROPCODE_GENERIC != RopInfo->RopCode)
{
Output(Out, "DIB_%uBPP_BitBlt_%s", Bpp, RopInfo->Name);
}
else
{
Output(Out, "DIB_%uBPP_BitBlt_Generic", Bpp);
}
}
static void
CreateShiftTables(FILE *Out)
{
Output(Out, "\n");
Output(Out, "static unsigned Shift1Bpp[] =\n");
Output(Out, "{\n");
Output(Out, "0,\n");
Output(Out, "24, 25, 26, 27, 28, 29, 30, 31, 16, 17, 18, 19, 20, 21, 22, 23,\n");
Output(Out, "8, 9, 10, 11, 12, 13, 14, 15, 0, 1, 2, 3, 4, 5, 6, 7\n");
Output(Out, "};\n");
Output(Out, "static unsigned Shift4Bpp[] =\n");
Output(Out, "{\n");
Output(Out, "0,\n");
Output(Out, "24, 28, 16, 20, 8, 12, 0, 4\n");
Output(Out, "};\n");
Output(Out, "static unsigned Shift8Bpp[] =\n");
Output(Out, "{\n");
Output(Out, "0,\n");
Output(Out, "24, 16, 8, 0\n");
Output(Out, "};\n");
Output(Out, "static unsigned Shift16Bpp[] =\n");
Output(Out, "{\n");
Output(Out, "0,\n");
Output(Out, "16, 0\n");
Output(Out, "};\n");
}
static void
CreateOperation(FILE *Out, unsigned Bpp, PROPINFO RopInfo, unsigned SourceBpp,
unsigned Bits)
{
const char *Cast;
const char *Dest;
const char *Template;
MARK(Out);
if (32 == Bits)
{
Cast = "";
Dest = "*DestPtr";
}
else if (16 == Bpp)
{
Cast = "(USHORT) ";
Dest = "*((PUSHORT) DestPtr)";
}
else
{
Cast = "(UCHAR) ";
Dest = "*((PUCHAR) DestPtr)";
}
Output(Out, "%s = ", Dest);
if (ROPCODE_GENERIC == RopInfo->RopCode)
{
Output(Out, "%sDIB_DoRop(BltInfo->Rop4, %s, Source, Pattern)",
Cast, Dest);
}
else
{
Template = RopInfo->Operation;
while ('\0' != *Template)
{
switch(*Template)
{
case 'S':
Output(Out, "%sSource", Cast);
break;
case 'P':
Output(Out, "%sPattern", Cast);
break;
case 'D':
Output(Out, "%s", Dest);
break;
default:
Output(Out, "%c", *Template);
break;
}
Template++;
}
}
}
static void
CreateBase(FILE *Out, int Source, int Flags, unsigned Bpp)
{
const char *What = (Source ? "Source" : "Dest");
MARK(Out);
Output(Out, "%sBase = (char *) BltInfo->%sSurface->pvScan0 +\n", What, What);
if (0 == (Flags & FLAG_BOTTOMUP))
{
if (Source)
{
Output(Out, " BltInfo->SourcePoint.y *\n");
}
else
{
Output(Out, " BltInfo->DestRect.top *\n");
}
}
else
{
if (Source)
{
Output(Out, " (BltInfo->SourcePoint.y +\n");
Output(Out, " BltInfo->DestRect.bottom -\n");
Output(Out, " BltInfo->DestRect.top - 1) *\n");
}
else
{
Output(Out, " (BltInfo->DestRect.bottom - 1) *\n");
}
}
Output(Out, " %sBltInfo->%sSurface->lDelta +\n",
Source ? " " : "", What);
if (Source)
{
Output(Out, " %sBltInfo->SourcePoint.x",
16 < Bpp ? "" : "((");
}
else
{
Output(Out, " BltInfo->DestRect.left");
}
if (Bpp < 8)
{
Output(Out, " / %u", 8 / Bpp);
}
else if (8 < Bpp)
{
Output(Out, " * %u", Bpp / 8);
}
if (Source && Bpp <= 16)
{
Output(Out, ") & ~ 0x3)");
}
Output(Out, ";\n", Bpp / 8);
if (Source && Bpp <= 16)
{
Output(Out, "BaseSourcePixels = %u - (BltInfo->SourcePoint.x & 0x%x);\n",
32 / Bpp, 32 / Bpp - 1);
}
}
static void
CreateGetSource(FILE *Out, unsigned Bpp, PROPINFO RopInfo, int Flags,
unsigned SourceBpp, unsigned Shift)
{
const char *AssignOp;
const char *Before;
char After[8];
MARK(Out);
if (0 == Shift)
{
AssignOp = "=";
Before = "";
After[0] = '\0';
}
else
{
AssignOp = "|=";
Before = "(";
sprintf(After, ") << %u", Shift);
}
if (ROPCODE_SRCCOPY != RopInfo->RopCode ||
0 == (Flags & FLAG_TRIVIALXLATE) || Bpp != SourceBpp)
{
if (0 == (Flags & FLAG_FORCERAWSOURCEAVAIL) && SourceBpp <= 16)
{
Output(Out, "if (0 == SourcePixels)\n");
Output(Out, "{\n");
Output(Out, "RawSource = *SourcePtr++;\n");
Output(Out, "SourcePixels = %u;\n", 32 / SourceBpp);
Output(Out, "}\n");
}
Output(Out, "Source %s (%s", AssignOp, Before);
if (0 == (Flags & FLAG_TRIVIALXLATE))
{
Output(Out, "XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, %s",
16 < SourceBpp ? "" : "(");
}
if (32 == SourceBpp)
{
Output(Out, "*SourcePtr++");
}
else if (24 == SourceBpp)
{
Output(Out, "*(PUSHORT) SourcePtr + (*((PBYTE) SourcePtr + 2) << 16)");
}
else
{
Output(Out, "RawSource >> Shift%uBpp[SourcePixels]", SourceBpp);
}
if (0 == (Flags & FLAG_TRIVIALXLATE))
{
if (16 < SourceBpp)
{
Output(Out, ")");
}
else
{
Output(Out, ") & 0x%x)", (1 << SourceBpp) - 1);
}
}
if (32 == Bpp)
{
Output(Out, ")%s;\n", After);
}
else
{
Output(Out, " & 0x%x)%s;\n", (1 << Bpp) - 1, After);
}
if (SourceBpp <= 16)
{
Output(Out, "SourcePixels--;\n");
}
else if (24 == SourceBpp)
{
Output(Out, "SourcePtr = (PULONG)((char *) SourcePtr + 3);\n");
}
}
}
static void
CreateCounts(FILE *Out, unsigned Bpp)
{
MARK(Out);
if (32 != Bpp)
{
if (8 < Bpp)
{
Output(Out, "LeftCount = ((ULONG_PTR) DestBase >> 1) & 0x01;\n");
}
else
{
Output(Out, "LeftCount = (ULONG_PTR) DestBase & 0x03;\n");
Output(Out, "if ((ULONG)(BltInfo->DestRect.right - BltInfo->DestRect.left) < "
"LeftCount)\n");
Output(Out, "{\n");
Output(Out, "LeftCount = BltInfo->DestRect.right - "
"BltInfo->DestRect.left;\n");
Output(Out, "}\n");
}
Output(Out, "CenterCount = (BltInfo->DestRect.right - BltInfo->DestRect.left -\n");
Output(Out, " LeftCount) / %u;\n", 32 / Bpp);
Output(Out, "RightCount = (BltInfo->DestRect.right - BltInfo->DestRect.left -\n");
Output(Out, " LeftCount - %u * CenterCount);\n", 32 / Bpp);
}
else
{
Output(Out, "CenterCount = BltInfo->DestRect.right - BltInfo->DestRect.left;\n");
}
}
static void
CreateSetSinglePixel(FILE *Out, unsigned Bpp, PROPINFO RopInfo, int Flags,
unsigned SourceBpp)
{
if (RopInfo->UsesSource && 0 == (Flags & FLAG_FORCENOUSESSOURCE))
{
CreateGetSource(Out, Bpp, RopInfo, Flags, SourceBpp, 0);
MARK(Out);
}
if (RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE))
{
Output(Out, "Pattern = DIB_GetSourceIndex(BltInfo->PatternSurface, PatternX, PatternY);\n");
Output(Out, "if (BltInfo->PatternSurface->sizlBitmap.cx <= ++PatternX)\n");
Output(Out, "{\n");
Output(Out, "PatternX -= BltInfo->PatternSurface->sizlBitmap.cx;\n");
Output(Out, "}\n");
}
if ((RopInfo->UsesSource && 0 == (Flags & FLAG_FORCENOUSESSOURCE) &&
Bpp != SourceBpp) ||
(RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE)))
{
Output(Out, "\n");
}
CreateOperation(Out, Bpp, RopInfo, SourceBpp, 16);
Output(Out, ";\n");
MARK(Out);
Output(Out, "\n");
Output(Out, "DestPtr = (PULONG)((char *) DestPtr + %u);\n", Bpp / 8);
}
static void
CreateBitCase(FILE *Out, unsigned Bpp, PROPINFO RopInfo, int Flags,
unsigned SourceBpp)
{
unsigned Partial;
MARK(Out);
if (RopInfo->UsesSource)
{
if (0 == (Flags & FLAG_FORCENOUSESSOURCE))
{
CreateBase(Out, 1, Flags, SourceBpp);
}
CreateBase(Out, 0, Flags, Bpp);
CreateCounts(Out, Bpp);
MARK(Out);
}
if (RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE))
{
if (0 == (Flags & FLAG_BOTTOMUP))
{
Output(Out, "PatternY = (BltInfo->DestRect.top - BltInfo->BrushOrigin.y) %%\n");
Output(Out, " BltInfo->PatternSurface->sizlBitmap.cy;\n");
}
else
{
Output(Out, "PatternY = (BltInfo->DestRect.bottom - 1 -\n");
Output(Out, " BltInfo->BrushOrigin.y) %%\n");
Output(Out, " BltInfo->PatternSurface->sizlBitmap.cy;\n");
}
}
if (ROPCODE_SRCCOPY == RopInfo->RopCode &&
0 != (Flags & FLAG_TRIVIALXLATE) && Bpp == SourceBpp)
{
Output(Out, "CenterCount = %u * (BltInfo->DestRect.right -\n", Bpp >> 3);
Output(Out, " BltInfo->DestRect.left);\n");
}
if (RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE))
{
Output(Out, "BasePatternX = (BltInfo->DestRect.left - BltInfo->BrushOrigin.x) %%\n");
Output(Out, " BltInfo->PatternSurface->sizlBitmap.cx;\n");
}
Output(Out, "for (LineIndex = 0; LineIndex < LineCount; LineIndex++)\n");
Output(Out, "{\n");
if (ROPCODE_SRCCOPY != RopInfo->RopCode ||
0 == (Flags & FLAG_TRIVIALXLATE) || Bpp != SourceBpp)
{
if (RopInfo->UsesSource && 0 == (Flags & FLAG_FORCENOUSESSOURCE))
{
Output(Out, "SourcePtr = (PULONG) SourceBase;\n");
if (SourceBpp <= 16)
{
Output(Out, "RawSource = *SourcePtr++;\n");
Output(Out, "SourcePixels = BaseSourcePixels;\n");
}
}
Output(Out, "DestPtr = (PULONG) DestBase;\n");
}
if (RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE))
{
Output(Out, "PatternX = BasePatternX;\n");
}
if (ROPCODE_SRCCOPY == RopInfo->RopCode &&
0 != (Flags & FLAG_TRIVIALXLATE) && Bpp == SourceBpp)
{
Output(Out, "RtlMoveMemory(DestBase, SourceBase, CenterCount);\n");
Output(Out, "\n");
}
else
{
Output(Out, "\n");
if (32 != Bpp)
{
if (16 == Bpp)
{
Output(Out, "if (0 != LeftCount)\n");
}
else
{
Output(Out, "for (i = 0; i < LeftCount; i++)\n");
}
Output(Out, "{\n");
CreateSetSinglePixel(Out, Bpp, RopInfo,
(16 == Bpp ? Flags | FLAG_FORCERAWSOURCEAVAIL :
Flags), SourceBpp);
MARK(Out);
Output(Out, "}\n");
Output(Out, "\n");
}
Output(Out, "for (i = 0; i < CenterCount; i++)\n");
Output(Out, "{\n");
if (RopInfo->UsesSource && 0 == (Flags & FLAG_FORCENOUSESSOURCE))
{
for (Partial = 0; Partial < 32 / Bpp; Partial++)
{
CreateGetSource(Out, Bpp, RopInfo, Flags, SourceBpp,
Partial * Bpp);
MARK(Out);
}
Output(Out, "\n");
}
if (RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE))
{
for (Partial = 0; Partial < 32 / Bpp; Partial++)
{
if (0 == Partial)
{
Output(Out, "Pattern = DIB_GetSourceIndex(BltInfo->PatternSurface, PatternX, PatternY);\n");
}
else
{
Output(Out, "Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, PatternX, PatternY) << %u;\n", Partial * Bpp);
}
Output(Out, "if (BltInfo->PatternSurface->sizlBitmap.cx <= ++PatternX)\n");
Output(Out, "{\n");
Output(Out, "PatternX -= BltInfo->PatternSurface->sizlBitmap.cx;\n");
Output(Out, "}\n");
}
Output(Out, "\n");
}
CreateOperation(Out, Bpp, RopInfo, SourceBpp, 32);
Output(Out, ";\n");
MARK(Out);
Output(Out, "\n");
Output(Out, "DestPtr++;\n");
Output(Out, "}\n");
Output(Out, "\n");
if (32 != Bpp)
{
if (16 == Bpp)
{
Output(Out, "if (0 != RightCount)\n");
}
else
{
Output(Out, "for (i = 0; i < RightCount; i++)\n");
}
Output(Out, "{\n");
CreateSetSinglePixel(Out, Bpp, RopInfo, Flags, SourceBpp);
MARK(Out);
Output(Out, "}\n");
Output(Out, "\n");
}
if (RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE))
{
if (0 == (Flags & FLAG_BOTTOMUP))
{
Output(Out, "if (BltInfo->PatternSurface->sizlBitmap.cy <= ++PatternY)\n");
Output(Out, "{\n");
Output(Out, "PatternY -= BltInfo->PatternSurface->sizlBitmap.cy;\n");
Output(Out, "}\n");
}
else
{
Output(Out, "if (0 == PatternY--)\n");
Output(Out, "{\n");
Output(Out, "PatternY = BltInfo->PatternSurface->sizlBitmap.cy - 1;\n");
Output(Out, "}\n");
}
}
}
if (RopInfo->UsesSource && 0 == (Flags & FLAG_FORCENOUSESSOURCE))
{
Output(Out, "SourceBase %c= BltInfo->SourceSurface->lDelta;\n",
0 == (Flags & FLAG_BOTTOMUP) ? '+' : '-');
}
Output(Out, "DestBase %c= BltInfo->DestSurface->lDelta;\n",
0 == (Flags & FLAG_BOTTOMUP) ? '+' : '-');
Output(Out, "}\n");
}
static void
CreateActionBlock(FILE *Out, unsigned Bpp, PROPINFO RopInfo,
int Flags)
{
static unsigned SourceBpp[ ] =
{ 1, 4, 8, 16, 24, 32 };
unsigned BppIndex;
MARK(Out);
if (RopInfo->UsesSource)
{
if (ROPCODE_GENERIC == RopInfo->RopCode)
{
Output(Out, "if (UsesSource)\n");
Output(Out, "{\n");
}
Output(Out, "switch (BltInfo->SourceSurface->iBitmapFormat)\n");
Output(Out, "{\n");
for (BppIndex = 0;
BppIndex < sizeof(SourceBpp) / sizeof(unsigned);
BppIndex++)
{
Output(Out, "case BMF_%uBPP:\n", SourceBpp[BppIndex]);
Output(Out, "{\n");
if (Bpp == SourceBpp[BppIndex])
{
Output(Out, "if (NULL == BltInfo->XlateSourceToDest ||\n");
Output(Out, " 0 != (BltInfo->XlateSourceToDest->flXlate & XO_TRIVIAL))\n");
Output(Out, "{\n");
Output(Out, "if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)\n");
Output(Out, "{\n");
CreateBitCase(Out, Bpp, RopInfo,
Flags | FLAG_TRIVIALXLATE,
SourceBpp[BppIndex]);
MARK(Out);
Output(Out, "}\n");
Output(Out, "else\n");
Output(Out, "{\n");
CreateBitCase(Out, Bpp, RopInfo,
Flags | FLAG_BOTTOMUP | FLAG_TRIVIALXLATE,
SourceBpp[BppIndex]);
MARK(Out);
Output(Out, "}\n");
Output(Out, "}\n");
Output(Out, "else\n");
Output(Out, "{\n");
Output(Out, "if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)\n");
Output(Out, "{\n");
CreateBitCase(Out, Bpp, RopInfo, Flags, SourceBpp[BppIndex]);
MARK(Out);
Output(Out, "}\n");
Output(Out, "else\n");
Output(Out, "{\n");
CreateBitCase(Out, Bpp, RopInfo,
Flags | FLAG_BOTTOMUP,
SourceBpp[BppIndex]);
MARK(Out);
Output(Out, "}\n");
Output(Out, "}\n");
}
else
{
CreateBitCase(Out, Bpp, RopInfo, Flags,
SourceBpp[BppIndex]);
MARK(Out);
}
Output(Out, "break;\n");
Output(Out, "}\n");
}
Output(Out, "}\n");
if (ROPCODE_GENERIC == RopInfo->RopCode)
{
Output(Out, "}\n");
Output(Out, "else\n");
Output(Out, "{\n");
CreateBitCase(Out, Bpp, RopInfo, Flags | FLAG_FORCENOUSESSOURCE, 0);
MARK(Out);
Output(Out, "}\n");
}
}
else
{
CreateBitCase(Out, Bpp, RopInfo, Flags, 0);
}
}
static void
CreatePrimitive(FILE *Out, unsigned Bpp, PROPINFO RopInfo)
{
int First;
unsigned Partial;
MARK(Out);
Output(Out, "\n");
Output(Out, "static void\n");
PrintRoutineName(Out, Bpp, RopInfo);
Output(Out, "(PBLTINFO BltInfo)\n");
Output(Out, "{\n");
if (ROPCODE_BLACKNESS == RopInfo->RopCode)
{
Output(Out, "DIB_%uBPP_ColorFill(BltInfo->DestSurface, "
"&BltInfo->DestRect, 0x0);\n", Bpp);
}
else if (ROPCODE_WHITENESS == RopInfo->RopCode)
{
Output(Out, "DIB_%uBPP_ColorFill(BltInfo->DestSurface, "
"&BltInfo->DestRect, ~0);\n", Bpp);
}
else if (ROPCODE_NOOP == RopInfo->RopCode)
{
Output(Out, "return;\n");
}
else
{
Output(Out, "ULONG LineIndex, LineCount;\n");
Output(Out, "ULONG i;\n");
if (RopInfo->UsesPattern)
{
Output(Out, "LONG PatternX =0, PatternY = 0, BasePatternX = 0;\n");
}
First = 1;
if (RopInfo->UsesSource)
{
Output(Out, "ULONG Source = 0");
First = 0;
}
if (RopInfo->UsesPattern)
{
Output(Out, "%s Pattern = 0", First ? "ULONG" : ",");
First = 0;
}
if (! First)
{
Output(Out, ";\n");
}
Output(Out, "char *DestBase;\n");
Output(Out, "PULONG DestPtr;\n");
if (RopInfo->UsesSource)
{
Output(Out, "char *SourceBase;\n");
Output(Out, "PULONG SourcePtr;\n");
Output(Out, "ULONG RawSource;\n");
Output(Out, "unsigned SourcePixels, BaseSourcePixels;\n");
}
if (32 == Bpp)
{
Output(Out, "ULONG CenterCount;\n");
}
else
{
Output(Out, "ULONG LeftCount, CenterCount, RightCount;\n");
}
if (ROPCODE_GENERIC == RopInfo->RopCode)
{
Output(Out, "BOOLEAN UsesSource, UsesPattern;\n");
Output(Out, "\n");
Output(Out, "UsesSource = ROP4_USES_SOURCE(BltInfo->Rop4);\n");
Output(Out, "UsesPattern = ROP4_USES_PATTERN(BltInfo->Rop4);\n");
}
Output(Out, "\n");
if (! RopInfo->UsesSource)
{
CreateBase(Out, 0, 0, Bpp);
CreateCounts(Out, Bpp);
MARK(Out);
}
Output(Out, "LineCount = BltInfo->DestRect.bottom - BltInfo->DestRect.top;\n");
Output(Out, "\n");
if (RopInfo->UsesPattern)
{
if (ROPCODE_GENERIC == RopInfo->RopCode)
{
Output(Out, "if (UsesPattern && NULL != BltInfo->PatternSurface)\n");
}
else
{
Output(Out, "if (NULL != BltInfo->PatternSurface)\n");
}
Output(Out, "{\n");
CreateActionBlock(Out, Bpp, RopInfo, FLAG_PATTERNSURFACE);
MARK(Out);
Output(Out, "}\n");
Output(Out, "else\n");
Output(Out, "{\n");
if (ROPCODE_GENERIC == RopInfo->RopCode)
{
Output(Out, "if (UsesPattern)\n");
Output(Out, "{\n");
}
for (Partial = 0; Partial < 32 / Bpp; Partial++)
{
if (0 == Partial)
{
Output(Out, "if (!BltInfo->Brush)\n");
Output(Out, "{\n");
Output(Out, "Pattern = 0;\n");
Output(Out, "}\n");
Output(Out, "else\n");
Output(Out, "{\n");
Output(Out, "Pattern = BltInfo->Brush->iSolidColor");
}
else
{
Output(Out, " (BltInfo->Brush->iSolidColor << %d)",
Partial * Bpp);
}
if (32 / Bpp <= Partial + 1)
{
Output(Out, ";\n");
Output(Out, "}\n");
}
else
{
Output(Out, " |\n");
}
}
if (ROPCODE_PATINVERT == RopInfo->RopCode ||
ROPCODE_MERGECOPY == RopInfo->RopCode)
{
Output(Out, "if (0 == Pattern)\n");
Output(Out, "{\n");
if (ROPCODE_MERGECOPY == RopInfo->RopCode)
{
Output(Out, "DIB_%uBPP_ColorFill(BltInfo->DestSurface, "
"&BltInfo->DestRect, 0x0);\n", Bpp);
}
Output(Out, "return;\n");
Output(Out, "}\n");
}
else if (ROPCODE_PATPAINT == RopInfo->RopCode)
{
Output(Out, "if ((~0) == Pattern)\n");
Output(Out, "{\n");
Output(Out, "DIB_%uBPP_ColorFill(BltInfo->DestSurface, "
"&BltInfo->DestRect, ~0);\n", Bpp);
Output(Out, "return;\n");
Output(Out, "}\n");
}
if (ROPCODE_GENERIC == RopInfo->RopCode)
{
Output(Out, "}\n");
}
CreateActionBlock(Out, Bpp, RopInfo, 0);
MARK(Out);
Output(Out, "}\n");
}
else
{
CreateActionBlock(Out, Bpp, RopInfo, 0);
MARK(Out);
}
}
Output(Out, "}\n");
}
static void
CreateTable(FILE *Out, unsigned Bpp)
{
unsigned RopCode;
MARK(Out);
Output(Out, "\n");
Output(Out, "static void (*PrimitivesTable[256])(PBLTINFO) =\n");
Output(Out, "{\n");
for (RopCode = 0; RopCode < 256; RopCode++)
{
PrintRoutineName(Out, Bpp, FindRopInfo(RopCode));
if (RopCode < 255)
{
Output(Out, ",");
}
Output(Out, "\n");
}
Output(Out, "};\n");
}
static void
CreateBitBlt(FILE *Out, unsigned Bpp)
{
MARK(Out);
Output(Out, "\n");
Output(Out, "BOOLEAN\n");
Output(Out, "DIB_%uBPP_BitBlt(PBLTINFO BltInfo)\n", Bpp);
Output(Out, "{\n");
Output(Out, "PrimitivesTable[BltInfo->Rop4 & 0xff](BltInfo);\n");
Output(Out, "\n");
Output(Out, "return TRUE;\n");
Output(Out, "}\n");
}
static void
Generate(char *OutputDir, unsigned Bpp)
{
FILE *Out;
unsigned RopCode;
PROPINFO RopInfo;
char *FileName;
FileName = malloc(strlen(OutputDir) + 12);
if (NULL == FileName)
{
fprintf(stderr, "Out of memory\n");
exit(1);
}
strcpy(FileName, OutputDir);
if ('/' != FileName[strlen(FileName) - 1])
{
strcat(FileName, "/");
}
sprintf(FileName + strlen(FileName), "dib%ugen.c", Bpp);
Out = fopen(FileName, "w");
free(FileName);
if (NULL == Out)
{
perror("Error opening output file");
exit(1);
}
MARK(Out);
Output(Out, "/* This is a generated file. Please do not edit */\n");
Output(Out, "\n");
Output(Out, "#include <win32k.h>\n");
CreateShiftTables(Out);
RopInfo = FindRopInfo(ROPCODE_GENERIC);
CreatePrimitive(Out, Bpp, RopInfo);
for (RopCode = 0; RopCode < 256; RopCode++)
{
RopInfo = FindRopInfo(RopCode);
if (NULL != RopInfo)
{
CreatePrimitive(Out, Bpp, RopInfo);
}
}
CreateTable(Out, Bpp);
CreateBitBlt(Out, Bpp);
fclose(Out);
}
int
main(int argc, char *argv[])
{
unsigned Index;
static unsigned DestBpp[] =
{ 8, 16, 32 };
if (argc < 2)
return 0;
for (Index = 0; Index < sizeof(DestBpp) / sizeof(DestBpp[0]); Index++)
{
Generate(argv[1], DestBpp[Index]);
}
return 0;
}
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