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Added some missing files in previous commit (why? :S )
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ElSemi committed Nov 23, 2010
1 parent 740225c commit a83c07d
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42 changes: 42 additions & 0 deletions psl1ght/tools/vpcomp/Makefile
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CFLAGS += -Wall -Os -g -pipe -I../../include
LDFLAGS += -lstdc++

CC = $(PREFIX)gcc
STRIP = $(PREFIX)strip

BIN = vpcomp$(BIN_EXT)

OBJS = main.o microcode.o parameters.o vpasm.o

all: $(BIN)

clean:
@rm -f *.o core core.* $(BIN)

strip: all
$(STRIP) $(BIN)

install: strip
install -m 755 $(BIN) $(DEVKITPPC)/bin

$(BIN): $(OBJS)
$(CC) $^ $(CFLAGS) $(LDFLAGS) -o $@

%.o: %.c
$(CC) $(CFLAGS) -c $< -o $@

%.o: %.cpp
$(CC) $(CFLAGS) -c $< -o $@


osx:
$(MAKE) clean
PREFIX=/opt/toolchains/powerpc-apple-darwin8-10.2/bin/ppc-apple-darwin8- CFLAGS=-fabi-version=1 $(MAKE) strip
cp $(BIN) $(BIN)_ppc
$(MAKE) clean
PREFIX=/opt/toolchains/i686-apple-darwin9-10.4/bin/i686-apple-darwin9- $(MAKE) strip
cp $(BIN) $(BIN)_intel
$(MAKE) clean
/opt/toolchains/i686-apple-darwin9-10.4/bin/i686-apple-darwin9-lipo -create $(BIN)_ppc $(BIN)_intel -output $(BIN)
rm $(BIN)_ppc $(BIN)_intel

24 changes: 24 additions & 0 deletions psl1ght/tools/vpcomp/README.txt
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Vertex program compiler for libreality

Preliminary version. It should compile most simple programs

Supported:
All scalar and vector opcodes
Branches
Calls (untested)
Parameter passing in constants

Unsupported:
Texture lookup
Address register access (ARL,ARR)
Indirect constant register access
Program relocation (jump & constants relocations)

The assembler parser is quite simplistic, so it might fail to properly compiled
some valid assembler files.

It requires NVidia CG.dll in the same directory (or in path) in order to
compile .cg programs into .rvp (reality vertex program) files.
(Download NVidia CG toolkit from their webpage to get the .dll)

Only the windows version of the toolkit is currently supported.
284 changes: 284 additions & 0 deletions psl1ght/tools/vpcomp/main.cpp
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#include "stdio.h"
#include "malloc.h"
#include "windows.h"

#include "vpasm.h"
#include "microcode.h"
#include "parameters.h"

struct _Options
{
const char *SourceFile;
const char *DestFile;
const char *Entry;
char GenerateAssembler;
char Compile;
char Strip;
} Options=
{
NULL,
NULL,
"main",
0,
1,
0,
};

#define SWAP16(v) ((v)>>8)|((v)<<8)
#define SWAP32(v) ((v)>>24)|((v)<<24)|(((v)&0xFF00)<<8)|(((v)&0xFF0000)>>8)

typedef void*(*_cgCreateContext)();
typedef void(*_cgDestroyContext)(void *context);
typedef void*(*_cgCreateProgramFromFile)(void* context, int program_type, const char *program, int profile, const char *entry, const char **args);
typedef const char*(*_cgGetProgramString)(void *program,int pname);
typedef const char *(*_cgGetLastListing)(void *context);

_cgCreateContext cgCreateContext=NULL;
_cgDestroyContext cgDestroyContext=NULL;
_cgCreateProgramFromFile cgCreateProgramFromFile=NULL;
_cgGetProgramString cgGetProgramString=NULL;
_cgGetLastListing cgGetLastListing=NULL;

void InitCompiler()
{
HMODULE libcgc=LoadLibrary("cg.dll");
if(libcgc==NULL)
return;
cgCreateContext=(_cgCreateContext)GetProcAddress(libcgc,"cgCreateContext");
cgDestroyContext=(_cgDestroyContext)GetProcAddress(libcgc,"cgDestroyContext");
cgCreateProgramFromFile=(_cgCreateProgramFromFile)GetProcAddress(libcgc,"cgCreateProgramFromFile");
cgGetProgramString=(_cgGetProgramString)GetProcAddress(libcgc,"cgGetProgramString");
cgGetLastListing=(_cgGetLastListing)GetProcAddress(libcgc,"cgGetLastListing");

}

void ShowUsage()
{
printf("vpcomp [options] input output\n");
printf("\t-a Assemble (do not compile, input an assembly listing instead of .cg\n");
printf("\t-k Generate intermediate assembler file (.vsa)\n");
printf("\t-e Entry function (default main)\n");
printf("\t-s Generate stripped file (no variable names)\n");
exit(-2);
}

void ReadOptions(_Options *options,int argc,char **argv)
{
int i;

for(i=1;i<argc;++i)
{
if(argv[i][0]=='-')
{
switch(argv[i][1])
{
case 'a': options->Compile=0; break;
case 'k': options->GenerateAssembler=1; break;
case 'e': options->Entry=argv[i+1]; ++i; break;
case 's': options->Strip=1; break;
case 'h': ShowUsage(); break;
}
}
else
break;
}
if(i+2!=argc)
ShowUsage();
options->SourceFile=argv[i];
options->DestFile=argv[i+1];
}

static void fatal(const char *error)
{
printf("%s\n",error);
exit(-1);
}


int main(int argc,char **argv)
{
char *prg;
_Instruction *insts;
int nInsts;

ReadOptions(&Options,argc,argv);

if(Options.Compile)
{
printf("Compiling...\n");
InitCompiler();

if(cgCreateContext==NULL)
{
fatal("Compiling requires NVidia CG.dll");
}

void *context=cgCreateContext();
void *program=cgCreateProgramFromFile(context,4112/*CG_SOURCE*/,Options.SourceFile,/*6148*//*VP30*/7001/*VP40*/,Options.Entry,NULL);
if(program==NULL)
{
const char *error=cgGetLastListing(context);
printf("%s\n",error);
fatal("Error compiling shader");
}
prg=(char*)cgGetProgramString(program,4106/*CG_COMPILED_PROGRAM*/);

if(Options.GenerateAssembler)
{
char aux[256];
strcpy(aux,Options.SourceFile);
strcat(aux,".vsa");
FILE *f=fopen(aux,"wt");
fwrite(prg,strlen(prg),1,f);
fclose(f);
}
}
else
{
FILE *f=fopen(Options.SourceFile,"rb");
if(f==NULL)
fatal("Can't open input file");
fseek(f,0,SEEK_END);
int sz=ftell(f);
fseek(f,0,SEEK_SET);
prg=(char*)malloc(sz);
fread(prg,sz,1,f);
fclose(f);
}

printf("Assembling...\n");
insts=ParseAsm(prg,&nInsts);

printf("Generating microcode...\n");

_Microcode *ucode;

ucode=GenerateMicrocode(insts,nInsts);

printf("Scanning attribute & params\n");

list<_Parameter> parameters = ScanParameters(prg);

//allocate a 2MB buffer for the generated vertex program
unsigned char *vertexprogram = (unsigned char*)malloc(2*1024*1024);
unsigned int lastoffset=0;
realityVertexProgram *vp=(realityVertexProgram *) vertexprogram;

unsigned short magic = ('V'<<8)|'P';
vp->Magic=SWAP16(magic);
vp->InputMask=SWAP32(ucode->InputMask);
vp->OutputMask=SWAP32(ucode->OutputMask);

lastoffset=sizeof(realityVertexProgram);

while(lastoffset&3) //align
{
vertexprogram[lastoffset]=0;
++lastoffset;
}

//attributes
realityVertexProgramAttribute *attributes = (realityVertexProgramAttribute*)(vertexprogram+lastoffset);
int n=0;

vp->AttributesOffset=SWAP32(lastoffset);

for(list<_Parameter>::iterator i=parameters.begin();i!=parameters.end();++i)
{
if(!i->IsConstant)
{
i->User=lastoffset+n*sizeof(realityVertexProgramAttribute);
attributes[n].Index=SWAP32(i->Index);
attributes[n].NameOffset=SWAP32(0); //will patch it later
++n;
}
}
vp->NumAttributes=SWAP16(n);
lastoffset+=n*sizeof(realityVertexProgramAttribute);

while(lastoffset&3) //align
{
vertexprogram[lastoffset]=0;
++lastoffset;
}

realityVertexProgramConstant *constants = (realityVertexProgramConstant*)(vertexprogram+lastoffset);
n=0;

vp->ConstantsOffset=SWAP32(lastoffset);

for(list<_Parameter>::iterator i=parameters.begin();i!=parameters.end();++i)
{
if(i->IsConstant)
{
i->User=lastoffset+n*sizeof(realityVertexProgramConstant);
constants[n].Index=SWAP32(i->Index);
constants[n].Type=i->Type;
constants[n].Internal=i->IsInternal;
constants[n].Values[0].f=i->Values[0];
constants[n].Values[0].u=SWAP32(constants[n].Values[0].u);
constants[n].Values[1].f=i->Values[1];
constants[n].Values[1].u=SWAP32(constants[n].Values[1].u);
constants[n].Values[2].f=i->Values[2];
constants[n].Values[2].u=SWAP32(constants[n].Values[2].u);
constants[n].Values[3].f=i->Values[3];
constants[n].Values[3].u=SWAP32(constants[n].Values[3].u);

constants[n].NameOffset=SWAP32(0); //will patch it later
++n;
}
}
vp->NumConstants=SWAP16(n);
lastoffset+=n*sizeof(realityVertexProgramConstant);

if(!Options.Strip)
{
while(lastoffset&3) //align
{
vertexprogram[lastoffset]=0;
++lastoffset;
}

//Now the string table
for(list<_Parameter>::iterator i=parameters.begin();i!=parameters.end();++i)
{
if(!i->Name.empty() && !i->IsInternal)
{
const char *str=i->Name.c_str();
int offset=lastoffset;
while(*str)
{
vertexprogram[lastoffset++]=*str++;
}
vertexprogram[lastoffset++]=0;
//now patch the offset (first dword)
*((unsigned int *) (vertexprogram+i->User))=SWAP32(offset);
}
}
}

//now the microcode
while(lastoffset&15) //align
{
vertexprogram[lastoffset]=0;
++lastoffset;
}

vp->UCodeOffset=SWAP32(lastoffset);
vp->NumInsts=SWAP16(nInsts);

unsigned int *dstcodeptr = (unsigned int*)(vertexprogram+lastoffset);
unsigned int *srccodeptr = ucode->ucode;

for(int i=0;i<nInsts*4;++i)
{
dstcodeptr[i]=SWAP32(srccodeptr[i]);
lastoffset+=4;
}

FILE *f=fopen(Options.DestFile,"wb");
fwrite(vertexprogram,lastoffset,1,f);
fclose(f);

return 0;
}

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