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Started work on operators

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This commit is contained in:
Emmanuel BENOîT 2017-10-14 12:00:47 +02:00
parent 84ebc69d54
commit 2c6b96c6e2
3 changed files with 461 additions and 0 deletions
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1
Makefile
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@ -26,6 +26,7 @@ DEMO = \
shaders.cc \ shaders.cc \
odbg.cc \ odbg.cc \
sync.cc \ sync.cc \
control.cc \
\ \
demo.cc \ demo.cc \
\ \

246
control.cc Normal file
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@ -0,0 +1,246 @@
#include "externals.hh"
#include "control.hh"
#include "sync.hh"
using namespace cops;
/*= X_OpFailure ==============================================================*/
X_OpFailure::X_OpFailure(
__rd__ std::string const& source ,
__rd__ uint32_t line ,
__rd__ std::string const& error ) noexcept
: std::exception( ) , source_( source ) , line_( line ) ,
error_( error )
{
std::ostringstream oss;
oss << "Program error (" << source << ", l. " << line << "): " << error;
fullMessage_ = oss.str( );
}
char const* X_OpFailure::what( ) const noexcept
{
return fullMessage_.c_str( );
}
/*= T_Op =====================================================================*/
T_Op::T_Op( __rd__ const E_Op op )
: op_( op )
{ }
T_Op::~T_Op( ) { }
X_OpFailure T_Op::error(
__rd__ std::string const& message ) const noexcept
{
return X_OpFailure( source , line , message );
}
/*= OPLoadConstant ===========================================================*/
OPLoadConstant::OPLoadConstant(
__rd__ const float constant )
: T_Op( OP_LOAD_CONSTANT ) , constant( constant )
{ }
void OPLoadConstant::execute(
__rw__ T_Context& ctx )
{
ctx.opStack.push_back( constant );
}
/*= OPLoadVariable ===========================================================*/
OPLoadVariable::OPLoadVariable(
__rd__ std::string const& variable )
: T_Op( OP_LOAD_VARIABLE ) , variable( variable )
{ }
void OPLoadVariable::execute(
__rw__ T_Context& ctx )
{
const auto vPos( ctx.varPos.find( variable ) );
if ( vPos == ctx.varPos.end( ) ) {
throw error( "variable '" + variable + "' not found" );
}
ctx.opStack.push_back( ctx.varValues[ vPos->second ] );
}
/*= OPLoadInput ==============================================================*/
OPLoadInput::OPLoadInput(
__rd__ std::string const& input )
: T_Op( OP_LOAD_VARIABLE ) , input( input )
{ }
void OPLoadInput::execute(
__rw__ T_Context& ctx )
{
ctx.opStack.push_back( ctx.sync->valueOf( input , *( ctx.time ) ) );
}
/*= OPStoreVariable ==========================================================*/
OPStoreVariable::OPStoreVariable(
__rd__ std::string const& variable )
: T_Op( OP_LOAD_VARIABLE ) , variable( variable )
{ }
void OPStoreVariable::execute(
__rw__ T_Context& ctx )
{
if ( ctx.opStack.empty( ) ) {
throw error( "stack is empty" );
}
const auto vPos( ctx.varPos.find( variable ) );
uint32_t pos;
if ( vPos == ctx.varPos.end( ) ) {
pos = ctx.varValues.size( );
ctx.varPos.emplace( variable , pos );
} else {
pos = vPos->second;
}
ctx.varValues[ pos ] = ctx.opStack.back( );
ctx.opStack.pop_back( );
}
/*= Arithmetic operators =====================================================*/
void OPAdd::execute(
__rw__ T_Context& ctx )
{
if ( ctx.opStack.size( ) < 2 ) {
throw error( "missing operands in stack" );
}
const float v( ctx.opStack.back( ) );
ctx.opStack.pop_back( );
ctx.opStack.back( ) += v;
}
void OPMul::execute(
__rw__ T_Context& ctx )
{
if ( ctx.opStack.size( ) < 2 ) {
throw error( "missing operands in stack" );
}
const float v( ctx.opStack.back( ) );
ctx.opStack.pop_back( );
ctx.opStack.back( ) *= v;
}
void OPNeg::execute(
__rw__ T_Context& ctx )
{
if ( ctx.opStack.empty( ) ) {
throw error( "missing operand in stack" );
}
ctx.opStack.back( ) = -ctx.opStack.back( );
}
void OPInv::execute(
__rw__ T_Context& ctx )
{
if ( ctx.opStack.empty( ) || ctx.opStack.back( ) == 0 ) {
throw error( "missing operand in stack" );
}
ctx.opStack.back( ) = 1.0f / ctx.opStack.back( );
}
/*= Stack operations =========================================================*/
OPDup::OPDup( __rd__ const uint32_t stackIndex )
: T_Op( OP_DUP ) , stackIndex( stackIndex )
{ }
void OPDup::execute(
__rw__ T_Context& ctx )
{
if ( ctx.opStack.size( ) <= stackIndex ) {
std::string err( "stack does not have " );
err += stackIndex + 1;
err += " items";
throw error( err );
}
ctx.opStack.push_back( *( ctx.opStack.end( ) - stackIndex - 1 ) );
}
/*----------------------------------------------------------------------------*/
OPXchg::OPXchg( __rd__ const uint32_t stackIndex )
: T_Op( OP_XCHG ) , stackIndex( stackIndex )
{ }
void OPXchg::execute(
__rw__ T_Context& ctx )
{
if ( ctx.opStack.size( ) <= stackIndex ) {
std::string err( "stack does not have " );
err += stackIndex + 1;
err += " items";
throw error( err );
}
if ( stackIndex ) {
std::swap( *( ctx.opStack.end( ) - 1 ) , *( ctx.opStack.end( ) - stackIndex - 1 ) );
}
}
/*= OPSetUniform =============================================================*/
OPSetUniform::OPSetUniform(
__rd__ const uint32_t program ,
__rd__ const uint32_t uniform ,
__rd__ const uint32_t count ,
__rd__ const bool integer )
: T_Op( OP_SET_UNIFORM ) , program( program ) , uniform( uniform ) ,
count( count ) , integer( integer )
{ }
void OPSetUniform::execute(
__rw__ T_Context& ctx )
{
if ( count == 0 || ctx.opStack.size( ) < count ) {
std::string err( "stack does not have " );
err += count;
err += " items";
throw error( err );
}
void* funcs[] = {
&glProgramUniform1fv , &glProgramUniform2fv , &glProgramUniform3fv , &glProgramUniform4fv ,
&glProgramUniform1iv , &glProgramUniform2iv , &glProgramUniform3iv , &glProgramUniform4iv ,
};
void (*func)( int , int , int , void* ) = (void (*)( int , int , int , void* )) funcs[ count + ( integer ? 4 : 0 ) ];
if ( integer ) {
int values[ count ];
auto i = count;
while ( i != 0 ) {
values[ count - i ] = int( ctx.opStack.back( ) );
ctx.opStack.pop_back( );
i --;
}
func( program , uniform , 1 , values );
} else {
float values[ count ];
auto i = count;
while ( i != 0 ) {
values[ count - i ] = ctx.opStack.back( );
ctx.opStack.pop_back( );
i --;
}
func( program , uniform , 1 , values );
}
}

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control.hh Normal file
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@ -0,0 +1,214 @@
#pragma once
#ifndef REAL_BUILD
# include "externals.hh"
#endif
struct T_SyncData;
namespace cops {
struct T_Context
{
float const* time;
T_SyncData const* sync;
std::vector< float > varValues;
std::map< std::string , uint32_t > varPos;
std::vector< float > opStack;
};
class X_OpFailure : public std::exception
{
public:
X_OpFailure( ) = delete;
DEF_COPY( X_OpFailure );
DEF_MOVE( X_OpFailure );
X_OpFailure(
__rd__ std::string const& source ,
__rd__ uint32_t line ,
__rd__ std::string const& error ) noexcept;
std::string const& source( ) const noexcept
{ return source_; }
uint32_t line( ) const noexcept
{ return line_; }
std::string const& error( ) const noexcept
{ return error_; }
char const* what( ) const noexcept override;
private:
std::string source_;
uint32_t line_;
std::string error_;
std::string fullMessage_;
};
/*--------------------------------------------------------------------*/
enum E_Op
{
OP_LOAD_CONSTANT ,
OP_LOAD_VARIABLE ,
OP_LOAD_INPUT ,
OP_STORE_VARIABLE ,
//
OP_ADD , OP_MUL ,
OP_NEG , OP_INV ,
//
OP_DUP , OP_XCHG ,
//
OP_SET_UNIFORM ,
OP_USE_PIPELINE ,
OP_USE_TEXTURE ,
OP_USE_FRAMEBUFFER ,
};
struct T_Op
{
explicit T_Op(
__rd__ const E_Op op );
virtual ~T_Op( ) = 0;
E_Op op( ) const noexcept
{ return op_; }
virtual void execute(
__rw__ T_Context& ctx ) = 0;
std::string source;
uint32_t line;
protected:
X_OpFailure error(
__rd__ std::string const& message ) const noexcept;
private:
E_Op op_;
};
using T_Operations = std::vector< cops::T_Op >;
/*====================================================================*/
struct OPLoadConstant : public T_Op
{
explicit OPLoadConstant(
__rd__ const float constant );
void execute(
__rw__ T_Context& ctx ) override;
float constant;
};
struct OPLoadVariable : public T_Op
{
explicit OPLoadVariable(
__rd__ std::string const& variable );
void execute(
__rw__ T_Context& ctx ) override;
std::string variable;
};
struct OPLoadInput : public T_Op
{
explicit OPLoadInput(
__rd__ std::string const& input );
void execute(
__rw__ T_Context& ctx ) override;
std::string input;
};
struct OPStoreVariable : public T_Op
{
explicit OPStoreVariable(
__rd__ std::string const& variable );
void execute(
__rw__ T_Context& ctx ) override;
std::string variable;
};
/*--------------------------------------------------------------------*/
struct OPAdd : public T_Op
{
OPAdd( ) : T_Op( OP_ADD ) {}
void execute(
__rw__ T_Context& ctx ) override;
};
struct OPMul : public T_Op
{
OPMul( ) : T_Op( OP_MUL ) {}
void execute(
__rw__ T_Context& ctx ) override;
};
struct OPNeg : public T_Op
{
OPNeg( ) : T_Op( OP_NEG ) {}
void execute(
__rw__ T_Context& ctx ) override;
};
struct OPInv : public T_Op
{
OPInv( ) : T_Op( OP_INV ) {}
void execute(
__rw__ T_Context& ctx ) override;
};
/*--------------------------------------------------------------------*/
struct OPDup : public T_Op
{
explicit OPDup( uint32_t stackIndex = 0 );
void execute(
__rw__ T_Context& ctx ) override;
uint32_t stackIndex;
};
struct OPXchg : public T_Op
{
explicit OPXchg( uint32_t stackIndex = 1 );
void execute(
__rw__ T_Context& ctx ) override;
uint32_t stackIndex;
};
/*--------------------------------------------------------------------*/
struct OPSetUniform : public T_Op
{
OPSetUniform(
__rd__ const uint32_t program ,
__rd__ const uint32_t uniform ,
__rd__ const uint32_t count ,
__rd__ const bool integer );
void execute(
__rw__ T_Context& ctx ) override;
uint32_t program;
uint32_t uniform;
uint32_t count;
bool integer;
};
struct OPUsePipeline : public T_Op
{
explicit OPUsePipeline(
__rd__ const uint32_t index );
void execute(
__rw__ T_Context& ctx ) override;
uint32_t pipeline;
};
/*====================================================================*/
void Execute(
__rd__ T_Operations const& operations ,
__rw__ T_Context& context );
} // namespace cops