demotool/demo.cc

130 lines
2.8 KiB
C++

#include "externals.hh"
#include "demo.hh"
#include "sync.hh"
#include "rendertarget.hh"
#include "globals.hh"
#include "ops.hh"
#include "opcomp.hh"
#include <ebcl/Files.hh>
#include <ebcl/SRDText.hh>
bool T_Demo::initialise(
const uint32_t w ,
const uint32_t h )
{
width = w;
height = h;
return program && runInit( *program );
}
void T_Demo::render( )
{
if ( Globals::Ops( ).hasNewProgram( ) ) {
auto nProgram{ Globals::Ops( ).program( ) };
if ( runInit( *nProgram ) ) {
program = std::move( nProgram );
}
}
auto& sync( Globals::Sync( ) );
if ( playing ) {
const float time = SDL_GetTicks( ) * 1e-3;
if ( playingPrevious ) {
sync.timeDelta( time - lastFrame );
playing = !sync.finished( );
}
lastFrame = time;
}
playingPrevious = playing;
if ( context && !context->aborted ) {
try {
context->run( ops::T_OpContext::R_RENDER , sync.time( ) , width , height );
} catch ( ops::X_OpFailure const& fail ) {
printf( "FAILED TO RUN FRAME!\n\t%s\n" , fail.what( ) );
context->aborted = true;
}
}
}
void T_Demo::handleDND(
ImVec2 const& move ,
const bool hasCtrl ,
const bool hasShift ,
const bool lmb // Left mouse button
)
{
}
void T_Demo::handleWheel(
const float wheel ,
const bool hasCtrl ,
const bool hasShift
)
{
}
namespace {
/*============================================================================*/
void PrintStreamError(
char const* const prefix ,
T_String const& name ,
ebcl::X_StreamError const& error )
{
T_StringBuilder sb;
sb << prefix << " '" << name << "': " << error.what( );
if ( error.code( ) == ebcl::E_StreamError::SYSTEM_ERROR ) {
sb << " (error code " << error.systemError( ) << ")";
}
sb << '\n' << '\0';
fprintf( stderr , "%s" , sb.data( ) );
}
void WriteSRDError(
T_StringBuilder& sb ,
ebcl::T_SRDError const& error )
{
sb << error.location( ) << " - " << error.error( ) << "\n";
}
/*============================================================================*/
} // namespace
bool T_Demo::runInit(
ops::T_OpProgram& p )
{
auto nContext{ NewOwned< ops::T_OpContext >( p ) };
try {
nContext->run( ops::T_OpContext::R_INIT , 0 , width , height );
} catch ( ops::X_OpFailure const& fail ) {
printf( "FAILED TO RUN INIT!\n\t%s\n" , fail.what( ) );
nContext.clear( );
}
if ( !nContext ) {
return false;
}
context = std::move( nContext );
Globals::Sync( ).clearInputs( );
const auto n( context->initialInputs.size( ) );
assert( n == p.inputs.size( ) );
for ( auto i = 0u ; i < n ; i ++ ) {
Globals::Sync( ).addInput( p.inputs[ i ] ,
context->initialInputs[ i ] );
#ifdef INVASIVE_TRACES
printf( "#%d %s pos %d\n" , i , p.inputs[ i ].toOSString( ).data( ) ,
Globals::Sync( ).inputPos( p.inputs[ i ] ) );
#endif //INVASIVE_TRACES
}
Globals::Sync( ).updateCurveCaches( );
return true;
}