Clementine-audio-player-Mac.../3rdparty/libprojectm/MilkdropPresetFactory/MilkdropPreset.cpp

555 lines
14 KiB
C++

/**
* projectM -- Milkdrop-esque visualisation SDK
* Copyright (C)2003-2004 projectM Team
*
* This library 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* See 'LICENSE.txt' included within this release
*
*/
#include <cstdio>
#include <cstring>
#include <cstdlib>
#ifdef WIN32
#include "win32-dirent.h"
#else
#include <dirent.h>
#endif /** WIN32 */
#include <time.h>
#include "MilkdropPreset.hpp"
#include "Parser.hpp"
#include "ParamUtils.hpp"
#include "InitCondUtils.hpp"
#include "fatal.h"
#include <iostream>
#include <fstream>
#include "PresetFrameIO.hpp"
MilkdropPreset::MilkdropPreset(std::istream & in, const std::string & presetName, PresetOutputs & presetOutputs):
Preset(presetName),
builtinParams(_presetInputs, presetOutputs),
_presetOutputs(presetOutputs)
{
initialize(in);
}
MilkdropPreset::MilkdropPreset(const std::string & absoluteFilePath, const std::string & presetName, PresetOutputs & presetOutputs):
Preset(presetName),
builtinParams(_presetInputs, presetOutputs),
_absoluteFilePath(absoluteFilePath),
_presetOutputs(presetOutputs),
_filename(parseFilename(absoluteFilePath))
{
initialize(absoluteFilePath);
}
MilkdropPreset::~MilkdropPreset()
{
traverse<TraverseFunctors::Delete<InitCond> >(init_cond_tree);
traverse<TraverseFunctors::Delete<InitCond> >(per_frame_init_eqn_tree);
traverse<TraverseFunctors::Delete<PerPixelEqn> >(per_pixel_eqn_tree);
traverseVector<TraverseFunctors::Delete<PerFrameEqn> >(per_frame_eqn_tree);
traverse<TraverseFunctors::Delete<Param> >(user_param_tree);
/// Testing deletion of render items by the preset. would be nice if it worked,
/// and seems to be working if you use a mutex on the preset switching.
/*
std::cout << "begin freeing of waves / shapes" << std::endl;
for (PresetOutputs::cwave_container::iterator pos = customWaves.begin();
pos != customWaves.end(); ++pos ) {
for (PresetOutputs::cwave_container::iterator pos2 = presetOutputs().customWaves.begin();
pos2 != presetOutputs().customWaves.end(); ++pos2 ) {
if ((*pos2)->id == (*pos)->id)
presetOutputs().customWaves.erase(pos2);
}
delete(*pos);
}
for (PresetOutputs::cshape_container::iterator pos = customShapes.begin();
pos != customShapes.end(); ++pos ) {
for (PresetOutputs::cshape_container::iterator pos2 = presetOutputs().customShapes.begin();
1aaa339f10vmlkd pos2 != presetOutputs().customShapes.end(); ++pos2 ) {
if ((*pos2)->id == (*pos)->id)
presetOutputs().customShapes.erase(pos2);
}
delete(*pos);
}
std::cout << "end freeing of waves / shapes" << std::endl;
*/
}
/* Adds a per pixel equation according to its string name. This
will be used only by the parser */
int MilkdropPreset::add_per_pixel_eqn(char * name, GenExpr * gen_expr)
{
PerPixelEqn * per_pixel_eqn = NULL;
int index;
Param * param = NULL;
assert(gen_expr);
assert(name);
if (PER_PIXEL_EQN_DEBUG) printf("add_per_pixel_eqn: per pixel equation (name = \"%s\")\n", name);
/* Search for the parameter so we know what matrix the per pixel equation is referencing */
param = ParamUtils::find(name, &this->builtinParams, &this->user_param_tree);
if ( !param )
{
if (PER_PIXEL_EQN_DEBUG) printf("add_per_pixel_eqn: failed to allocate a new parameter!\n");
return PROJECTM_FAILURE;
}
index = per_pixel_eqn_tree.size();
/* Create the per pixel equation given the index, parameter, and general expression */
if ((per_pixel_eqn = new PerPixelEqn(index, param, gen_expr)) == NULL)
{
if (PER_PIXEL_EQN_DEBUG) printf("add_per_pixel_eqn: failed to create new per pixel equation!\n");
return PROJECTM_FAILURE;
}
/* Insert the per pixel equation into the preset per pixel database */
std::pair<std::map<int, PerPixelEqn*>::iterator, bool> inserteeOption = per_pixel_eqn_tree.insert
(std::make_pair(per_pixel_eqn->index, per_pixel_eqn));
if (!inserteeOption.second)
{
printf("failed to add per pixel eqn!\n");
delete(per_pixel_eqn);
return PROJECTM_FAILURE;
}
/* Done */
return PROJECTM_SUCCESS;
}
void MilkdropPreset::evalCustomShapeInitConditions()
{
for (PresetOutputs::cshape_container::iterator pos = customShapes.begin(); pos != customShapes.end(); ++pos) {
assert(*pos);
(*pos)->evalInitConds();
}
}
void MilkdropPreset::evalCustomWaveInitConditions()
{
for (PresetOutputs::cwave_container::iterator pos = customWaves.begin(); pos != customWaves.end(); ++pos) {
assert(*pos);
(*pos)->evalInitConds();
}
}
void MilkdropPreset::evalCustomWavePerFrameEquations()
{
for (PresetOutputs::cwave_container::iterator pos = customWaves.begin(); pos != customWaves.end(); ++pos)
{
std::map<std::string, InitCond*> & init_cond_tree = (*pos)->init_cond_tree;
for (std::map<std::string, InitCond*>::iterator _pos = init_cond_tree.begin(); _pos != init_cond_tree.end(); ++_pos)
{
assert(_pos->second);
_pos->second->evaluate();
}
std::vector<PerFrameEqn*> & per_frame_eqn_tree = (*pos)->per_frame_eqn_tree;
for (std::vector<PerFrameEqn*>::iterator _pos = per_frame_eqn_tree.begin(); _pos != per_frame_eqn_tree.end(); ++_pos)
{
(*_pos)->evaluate();
}
}
}
void MilkdropPreset::evalCustomShapePerFrameEquations()
{
for (PresetOutputs::cshape_container::iterator pos = customShapes.begin(); pos != customShapes.end(); ++pos)
{
std::map<std::string, InitCond*> & init_cond_tree = (*pos)->init_cond_tree;
for (std::map<std::string, InitCond*>::iterator _pos = init_cond_tree.begin(); _pos != init_cond_tree.end(); ++_pos)
{
assert(_pos->second);
_pos->second->evaluate();
}
std::vector<PerFrameEqn*> & per_frame_eqn_tree = (*pos)->per_frame_eqn_tree;
for (std::vector<PerFrameEqn*>::iterator _pos = per_frame_eqn_tree.begin(); _pos != per_frame_eqn_tree.end(); ++_pos)
{
(*_pos)->evaluate();
}
}
}
void MilkdropPreset::evalPerFrameInitEquations()
{
for (std::map<std::string, InitCond*>::iterator pos = per_frame_init_eqn_tree.begin(); pos != per_frame_init_eqn_tree.end(); ++pos)
{
assert(pos->second);
pos->second->evaluate();
}
}
void MilkdropPreset::evalPerFrameEquations()
{
for (std::map<std::string, InitCond*>::iterator pos = init_cond_tree.begin(); pos != init_cond_tree.end(); ++pos)
{
assert(pos->second);
pos->second->evaluate();
}
for (std::vector<PerFrameEqn*>::iterator pos = per_frame_eqn_tree.begin(); pos != per_frame_eqn_tree.end(); ++pos)
{
(*pos)->evaluate();
}
}
void MilkdropPreset::preloadInitialize() {
/// @note commented this out because it should be unnecessary
// Clear equation trees
//init_cond_tree.clear();
//user_param_tree.clear();
//per_frame_eqn_tree.clear();
//per_pixel_eqn_tree.clear();
//per_frame_init_eqn_tree.clear();
}
void MilkdropPreset::postloadInitialize() {
/* It's kind of ugly to reset these values here. Should definitely be placed in the parser somewhere */
this->per_frame_eqn_count = 0;
this->per_frame_init_eqn_count = 0;
this->loadBuiltinParamsUnspecInitConds();
this->loadCustomWaveUnspecInitConds();
this->loadCustomShapeUnspecInitConds();
/// @bug are you handling all the q variables conditions? in particular, the un-init case?
//m_presetOutputs.q1 = 0;
//m_presetOutputs.q2 = 0;
//m_presetOutputs.q3 = 0;
//m_presetOutputs.q4 = 0;
//m_presetOutputs.q5 = 0;
//m_presetOutputs.q6 = 0;
//m_presetOutputs.q7 = 0;
//m_presetOutputs.q8 = 0;
}
void MilkdropPreset::Render(const BeatDetect &music, const PipelineContext &context)
{
_presetInputs.update(music, context);
evaluateFrame();
pipeline().Render(music, context);
}
void MilkdropPreset::initialize(const std::string & pathname)
{
int retval;
preloadInitialize();
if (MILKDROP_PRESET_DEBUG)
std::cerr << "[Preset] loading file \"" << pathname << "\"..." << std::endl;
if ((retval = loadPresetFile(pathname)) < 0)
{
if (MILKDROP_PRESET_DEBUG)
std::cerr << "[Preset] failed to load file \"" <<
pathname << "\"!" << std::endl;
/// @bug how should we handle this problem? a well define exception?
throw retval;
}
postloadInitialize();
}
void MilkdropPreset::initialize(std::istream & in)
{
int retval;
preloadInitialize();
if ((retval = readIn(in)) < 0)
{
if (MILKDROP_PRESET_DEBUG)
std::cerr << "[Preset] failed to load from stream " << std::endl;
/// @bug how should we handle this problem? a well define exception?
throw retval;
}
postloadInitialize();
}
void MilkdropPreset::loadBuiltinParamsUnspecInitConds() {
InitCondUtils::LoadUnspecInitCond loadUnspecInitCond(this->init_cond_tree, this->per_frame_init_eqn_tree);
this->builtinParams.apply(loadUnspecInitCond);
traverse(user_param_tree, loadUnspecInitCond);
}
void MilkdropPreset::loadCustomWaveUnspecInitConds()
{
for (PresetOutputs::cwave_container::iterator pos = customWaves.begin(); pos != customWaves.end(); ++pos)
{
assert(*pos);
(*pos)->loadUnspecInitConds();
}
}
void MilkdropPreset::loadCustomShapeUnspecInitConds()
{
for (PresetOutputs::cshape_container::iterator pos = customShapes.begin();
pos != customShapes.end(); ++pos)
{
assert(*pos);
(*pos)->loadUnspecInitConds();
}
}
void MilkdropPreset::evaluateFrame()
{
// Evaluate all equation objects according to milkdrop flow diagram
evalPerFrameInitEquations();
evalPerFrameEquations();
// Important step to ensure custom shapes and waves don't stamp on the q variable values
// calculated by the per frame (init) and per pixel equations.
transfer_q_variables(customWaves);
transfer_q_variables(customShapes);
initialize_PerPixelMeshes();
evalPerPixelEqns();
evalCustomWaveInitConditions();
evalCustomWavePerFrameEquations();
evalCustomShapeInitConditions();
evalCustomShapePerFrameEquations();
// Setup pointers of the custom waves and shapes to the preset outputs instance
/// @slow an extra O(N) per frame, could do this during eval
_presetOutputs.customWaves = PresetOutputs::cwave_container(customWaves);
_presetOutputs.customShapes = PresetOutputs::cshape_container(customShapes);
}
void MilkdropPreset::initialize_PerPixelMeshes()
{
int x,y;
for (x=0;x<presetInputs().gx;x++){
for(y=0;y<presetInputs().gy;y++){
_presetOutputs.cx_mesh[x][y]=presetOutputs().cx;
}}
for (x=0;x<presetInputs().gx;x++){
for(y=0;y<presetInputs().gy;y++){
_presetOutputs.cy_mesh[x][y]=presetOutputs().cy;
}}
for (x=0;x<presetInputs().gx;x++){
for(y=0;y<presetInputs().gy;y++){
_presetOutputs.sx_mesh[x][y]=presetOutputs().sx;
}}
for (x=0;x<presetInputs().gx;x++){
for(y=0;y<presetInputs().gy;y++){
_presetOutputs.sy_mesh[x][y]=presetOutputs().sy;
}}
for (x=0;x<presetInputs().gx;x++){
for(y=0;y<presetInputs().gy;y++){
_presetOutputs.dx_mesh[x][y]=presetOutputs().dx;
}}
//std::cout<<presetOutputs().cx<<","<<presetOutputs().cy<<" "<<presetOutputs().dx<<","<<presetOutputs().dy<<std::endl;
for (x=0;x<presetInputs().gx;x++){
for(y=0;y<presetInputs().gy;y++){
_presetOutputs.dy_mesh[x][y]=presetOutputs().dy;
}}
for (x=0;x<presetInputs().gx;x++){
for(y=0;y<presetInputs().gy;y++){
_presetOutputs.zoom_mesh[x][y]=presetOutputs().zoom;
}}
for (x=0;x<presetInputs().gx;x++){
for(y=0;y<presetInputs().gy;y++){
_presetOutputs.zoomexp_mesh[x][y]=presetOutputs().zoomexp;
}}
for (x=0;x<presetInputs().gx;x++){
for(y=0;y<presetInputs().gy;y++){
_presetOutputs.rot_mesh[x][y]=presetOutputs().rot;
}}
for (x=0;x<presetInputs().gx;x++){
for(y=0;y<presetInputs().gy;y++){
_presetOutputs.warp_mesh[x][y]=presetOutputs().warp;
}}
}
// Evaluates all per-pixel equations
void MilkdropPreset::evalPerPixelEqns()
{
/* Evaluate all per pixel equations in the tree datastructure */
for (int mesh_x = 0; mesh_x < presetInputs().gx; mesh_x++)
for (int mesh_y = 0; mesh_y < presetInputs().gy; mesh_y++)
for (std::map<int, PerPixelEqn*>::iterator pos = per_pixel_eqn_tree.begin();
pos != per_pixel_eqn_tree.end(); ++pos)
pos->second->evaluate(mesh_x, mesh_y);
}
int MilkdropPreset::readIn(std::istream & fs) {
line_mode_t line_mode;
presetOutputs().compositeShader.programSource.clear();
presetOutputs().warpShader.programSource.clear();
/* Parse any comments */
if (Parser::parse_top_comment(fs) < 0)
{
if (MILKDROP_PRESET_DEBUG)
std::cerr << "[Preset::readIn] no left bracket found..." << std::endl;
return PROJECTM_FAILURE;
}
/* Parse the preset name and a left bracket */
char tmp_name[MAX_TOKEN_SIZE];
if (Parser::parse_preset_name(fs, tmp_name) < 0)
{
std::cerr << "[Preset::readIn] loading of preset name failed" << std::endl;
return PROJECTM_ERROR;
}
/// @note We ignore the preset name because [preset00] is just not so useful
// Loop through each line in file, trying to succesfully parse the file.
// If a line does not parse correctly, keep trucking along to next line.
int retval;
while ((retval = Parser::parse_line(fs, this)) != EOF)
{
if (retval == PROJECTM_PARSE_ERROR)
{
line_mode = UNSET_LINE_MODE;
// std::cerr << "[Preset::readIn()] parse error in file \"" << this->absoluteFilePath() << "\"" << std::endl;
}
}
// std::cerr << "loadPresetFile: finished line parsing successfully" << std::endl;
/* Now the preset has been loaded.
Evaluation calls can be made at appropiate
times in the frame loop */
return PROJECTM_SUCCESS;
}
/* loadPresetFile: private function that loads a specific preset denoted
by the given pathname */
int MilkdropPreset::loadPresetFile(const std::string & pathname)
{
/* Open the file corresponding to pathname */
std::ifstream fs(pathname.c_str());
if (!fs || fs.eof()) {
if (MILKDROP_PRESET_DEBUG)
std::cerr << "loadPresetFile: loading of file \"" << pathname << "\" failed!\n";
return PROJECTM_ERROR;
}
return readIn(fs);
}
const std::string & MilkdropPreset::name() const {
return name().empty() ? filename() : name();
}