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Merge pull request #947 from erwincoumans/master

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[pybullet] add some out-of-bounds checks, reduce run-time memory allocations
This commit is contained in:
erwincoumans
2017-02-07 12:07:40 -08:00
committed by GitHub
parent 9705bb7681 56b4ac278b
commit 46c7974927
5 changed files with 97 additions and 48 deletions
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40
examples/SharedMemory/PhysicsClientC_API.cpp
View File

@@ -444,10 +444,12 @@ int b3JointControlSetDesiredPosition(b3SharedMemoryCommandHandle commandHandle,
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
b3Assert(command);
command->m_sendDesiredStateCommandArgument.m_desiredStateQ[qIndex] = value;
command->m_updateFlags |= SIM_DESIRED_STATE_HAS_Q;
command->m_sendDesiredStateCommandArgument.m_hasDesiredStateFlags[qIndex] |= SIM_DESIRED_STATE_HAS_Q;
if ((qIndex>=0) && (qIndex < MAX_DEGREE_OF_FREEDOM))
{
command->m_sendDesiredStateCommandArgument.m_desiredStateQ[qIndex] = value;
command->m_updateFlags |= SIM_DESIRED_STATE_HAS_Q;
command->m_sendDesiredStateCommandArgument.m_hasDesiredStateFlags[qIndex] |= SIM_DESIRED_STATE_HAS_Q;
}
return 0;
}
@@ -455,8 +457,7 @@ int b3JointControlSetKp(b3SharedMemoryCommandHandle commandHandle, int dofIndex,
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
b3Assert(command);
b3Assert(dofIndex>=0);
if (dofIndex>=0)
if ((dofIndex>=0) && (dofIndex < MAX_DEGREE_OF_FREEDOM))
{
command->m_sendDesiredStateCommandArgument.m_Kp[dofIndex] = value;
command->m_updateFlags |= SIM_DESIRED_STATE_HAS_KP;
@@ -469,8 +470,7 @@ int b3JointControlSetKd(b3SharedMemoryCommandHandle commandHandle, int dofIndex,
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
b3Assert(command);
b3Assert(dofIndex>=0);
if (dofIndex>=0)
if ((dofIndex>=0) && (dofIndex < MAX_DEGREE_OF_FREEDOM))
{
command->m_sendDesiredStateCommandArgument.m_Kd[dofIndex] = value;
command->m_updateFlags |= SIM_DESIRED_STATE_HAS_KD;
@@ -483,8 +483,7 @@ int b3JointControlSetDesiredVelocity(b3SharedMemoryCommandHandle commandHandle,
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
b3Assert(command);
b3Assert(dofIndex>=0);
if (dofIndex>=0)
if ((dofIndex>=0) && (dofIndex < MAX_DEGREE_OF_FREEDOM))
{
command->m_sendDesiredStateCommandArgument.m_desiredStateQdot[dofIndex] = value;
command->m_updateFlags |= SIM_DESIRED_STATE_HAS_QDOT;
@@ -498,8 +497,7 @@ int b3JointControlSetMaximumForce(b3SharedMemoryCommandHandle commandHandle, int
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
b3Assert(command);
b3Assert(dofIndex>=0);
if (dofIndex>=0)
if ((dofIndex>=0) && (dofIndex < MAX_DEGREE_OF_FREEDOM))
{
command->m_sendDesiredStateCommandArgument.m_desiredStateForceTorque[dofIndex] = value;
command->m_updateFlags |= SIM_DESIRED_STATE_HAS_MAX_FORCE;
@@ -512,8 +510,7 @@ int b3JointControlSetDesiredForceTorque(b3SharedMemoryCommandHandle commandHandl
{
struct SharedMemoryCommand* command = (struct SharedMemoryCommand*) commandHandle;
b3Assert(command);
b3Assert(dofIndex>=0);
if (dofIndex>=0)
if ((dofIndex>=0) && (dofIndex < MAX_DEGREE_OF_FREEDOM))
{
command->m_sendDesiredStateCommandArgument.m_desiredStateForceTorque[dofIndex] = value;
command->m_updateFlags |= SIM_DESIRED_STATE_HAS_MAX_FORCE;
@@ -547,13 +544,16 @@ int b3GetJointState(b3PhysicsClientHandle physClient, b3SharedMemoryStatusHandle
bool result = b3GetJointInfo(physClient, bodyIndex,jointIndex, &info);
if (result)
{
state->m_jointPosition = status->m_sendActualStateArgs.m_actualStateQ[info.m_qIndex];
state->m_jointVelocity = status->m_sendActualStateArgs.m_actualStateQdot[info.m_uIndex];
for (int ii(0); ii < 6; ++ii) {
state->m_jointForceTorque[ii] = status->m_sendActualStateArgs.m_jointReactionForces[6 * jointIndex + ii];
if ((info.m_qIndex>=0) && (info.m_uIndex>=0) && (info.m_qIndex < MAX_DEGREE_OF_FREEDOM) && (info.m_uIndex < MAX_DEGREE_OF_FREEDOM))
{
state->m_jointPosition = status->m_sendActualStateArgs.m_actualStateQ[info.m_qIndex];
state->m_jointVelocity = status->m_sendActualStateArgs.m_actualStateQdot[info.m_uIndex];
for (int ii(0); ii < 6; ++ii) {
state->m_jointForceTorque[ii] = status->m_sendActualStateArgs.m_jointReactionForces[6 * jointIndex + ii];
}
state->m_jointMotorTorque = status->m_sendActualStateArgs.m_jointMotorForce[jointIndex];
return 1;
}
state->m_jointMotorTorque = status->m_sendActualStateArgs.m_jointMotorForce[jointIndex];
return 1;
}
}
return 0;

17
examples/SharedMemory/SharedMemoryInProcessPhysicsC_API.cpp
View File

@@ -1,5 +1,6 @@
#include "SharedMemoryInProcessPhysicsC_API.h"
#include "../Utils/b3Clock.h"
#include "PhysicsClientSharedMemory.h"
#include"../ExampleBrowser/InProcessExampleBrowser.h"
@@ -8,7 +9,8 @@
class InProcessPhysicsClientSharedMemoryMainThread : public PhysicsClientSharedMemory
{
btInProcessExampleBrowserMainThreadInternalData* m_data;
b3Clock m_clock;
public:
InProcessPhysicsClientSharedMemoryMainThread(int argc, char* argv[])
@@ -41,9 +43,16 @@ public:
{
PhysicsClientSharedMemory::disconnectSharedMemory();
}
btUpdateInProcessExampleBrowserMainThread(m_data);
return PhysicsClientSharedMemory::processServerStatus();
unsigned long int ms = m_clock.getTimeMilliseconds();
if (ms>20)
{
m_clock.reset();
btUpdateInProcessExampleBrowserMainThread(m_data);
} else
{
//b3Clock::usleep(100);
}
return PhysicsClientSharedMemory::processServerStatus();
}

69
examples/pybullet/quadruped.py
View File

@@ -2,6 +2,8 @@ import pybullet as p
import time
import math
useRealTime = 0
fixedTimeStep = 0.001
physId = p.connect(p.SHARED_MEMORY)
if (physId<0):
@@ -9,8 +11,10 @@ if (physId<0):
p.loadURDF("plane.urdf")
p.setGravity(0,0,-1)
p.setTimeStep(fixedTimeStep)
p.setRealTimeSimulation(0)
quadruped = p.loadURDF("quadruped/quadruped.urdf",1,-2,2)
quadruped = p.loadURDF("quadruped/quadruped.urdf",1,-2,1)
#p.getNumJoints(1)
#right front leg
p.resetJointState(quadruped,0,1.57)
@@ -71,24 +75,41 @@ p.setJointMotorControl(quadruped,23,p.VELOCITY_CONTROL,0,0)
p_gain = 2
speed = 10
p_gain =1
speed = 10
amplitude = 1.3
#stand still
t_end = time.time() + 2
while time.time() < t_end:
p.stepSimulation()
p.setRealTimeSimulation(useRealTime)
t=0.0
ref_time = time.time()
t_end = t + 4
while t < t_end:
if (useRealTime==0):
t = t+fixedTimeStep
p.stepSimulation()
else:
t = time.time()-ref_time
p.setGravity(0,0,-1)
p.setGravity(0,0,-10)
jump_amp = 0.5
#jump
t_end = time.time() + 10
t = 0.0
t_end = t + 10
i=0
t=0
while time.time() < t_end:
t = time.time()
ref_time = time.time()
while t < t_end:
if (useRealTime):
t = time.time()-ref_time
else:
t = t+fixedTimeStep
p.setJointMotorControl(quadruped,0,p.POSITION_CONTROL,math.sin(t*speed)*jump_amp+1.57,p_gain)
p.setJointMotorControl(quadruped,3,p.POSITION_CONTROL,-math.sin(t*speed)*jump_amp-1.57,p_gain)
p.setJointMotorControl(quadruped,6,p.POSITION_CONTROL,math.sin(t*speed)*jump_amp+1.57,p_gain)
@@ -97,15 +118,19 @@ while time.time() < t_end:
p.setJointMotorControl(quadruped,15,p.POSITION_CONTROL,-math.sin(t*speed)*jump_amp-1.57,p_gain)
p.setJointMotorControl(quadruped,18,p.POSITION_CONTROL,math.sin(t*speed)*jump_amp+1.57,p_gain)
p.setJointMotorControl(quadruped,21,p.POSITION_CONTROL,-math.sin(t*speed)*jump_amp-1.57,p_gain)
p.stepSimulation()
if (useRealTime==0):
p.stepSimulation()
#hop forward
t_end = time.time() + 30
t_end = 20
i=0
while time.time() < t_end:
t = time.time()
while t < t_end:
if (useRealTime):
t = time.time()-ref_time
else:
t = t+fixedTimeStep
p.setJointMotorControl(quadruped,0,p.POSITION_CONTROL,math.sin(t*speed)*amplitude+1.57,p_gain)
p.setJointMotorControl(quadruped,3,p.POSITION_CONTROL,-1.57,p_gain)
p.setJointMotorControl(quadruped,6,p.POSITION_CONTROL,math.sin(t*speed)*amplitude+1.57,p_gain)
@@ -114,14 +139,18 @@ while time.time() < t_end:
p.setJointMotorControl(quadruped,15,p.POSITION_CONTROL,-1.57,p_gain)
p.setJointMotorControl(quadruped,18,p.POSITION_CONTROL,math.sin(t*speed+3.14)*amplitude+1.57,p_gain)
p.setJointMotorControl(quadruped,21,p.POSITION_CONTROL,-1.57,p_gain)
p.stepSimulation()
if (useRealTime==0):
p.stepSimulation()
#walk
t_end = time.time() + 120
t_end = 100
i=0
while time.time() < t_end:
t = time.time()
while t < t_end:
if (useRealTime):
t = time.time()-ref_time
else:
t = t+fixedTimeStep
p.setJointMotorControl(quadruped,0,p.POSITION_CONTROL,math.sin(t*3)*.3+1.57,1)
p.setJointMotorControl(quadruped,3,p.POSITION_CONTROL,-1.57,1)
p.setJointMotorControl(quadruped,6,p.POSITION_CONTROL,math.sin(t*3+0.5*3.14)*.3+1.57,1)