avoid allocations in renderer (messes up AMD buggy OpenGL driver)

add missing file in cmake build system (BroadphaseCollision/b3GpuParallelLinearBvhBroadphase.cpp and BroadphaseCollision/b3GpuParallelLinearBvh.cpp)

btgui/OpenGLTrueTypeFont/opengl_fontstashcallbacks.cpp

@@ -220,6 +220,7 @@ void InternalOpenGL2RenderCallbacks::render(sth_texture* texture)
      glBindBuffer(GL_ARRAY_BUFFER, s_vertexBuffer);
      glBindVertexArray(s_vertexArrayObject);
     glBufferData(GL_ARRAY_BUFFER, texture->nverts * sizeof(Vertex), &texture->newverts[0].position.p[0], GL_DYNAMIC_DRAW);
+
     err = glGetError();
     assert(err==GL_NO_ERROR);
             

btgui/OpenGLWindow/GLInstancingRenderer.cpp

@@ -742,6 +742,12 @@ void GLInstancingRenderer::InitShaders()
 
 	glGenBuffers(1, &lineVertexBufferObject);
 	glGenBuffers(1, &lineIndexVbo);
+	
+	int sz = 8*sizeof(float);
+	glBindVertexArray(lineVertexArrayObject);
+	glBindBuffer(GL_ARRAY_BUFFER, lineVertexBufferObject);
+	glBufferData(GL_ARRAY_BUFFER, sz, 0, GL_DYNAMIC_DRAW);
+	
 	glBindVertexArray(0);
 	
 	
@@ -1456,8 +1462,12 @@ void GLInstancingRenderer::drawLine(const float from[4], const float to[4], cons
 	err = glGetError();
 	b3Assert(err==GL_NO_ERROR);
 
-    glBufferData(GL_ARRAY_BUFFER, sz, vertexPositions, GL_STATIC_DRAW);
-
+	
+	{
+		glBufferSubData(GL_ARRAY_BUFFER, 0,sz, vertexPositions);
+	}
+	
+	
 	err = glGetError();
 	b3Assert(err==GL_NO_ERROR);
 

btgui/OpenGLWindow/GLPrimitiveRenderer.cpp

@@ -130,7 +130,7 @@ void GLPrimitiveRenderer::loadBufferData()
     
     glGenBuffers(1, &m_data->m_vertexBuffer);
     glBindBuffer(GL_ARRAY_BUFFER, m_data->m_vertexBuffer);
-    glBufferData(GL_ARRAY_BUFFER, 4 * sizeof(Vertex), vertexData, GL_STATIC_DRAW);
+    glBufferData(GL_ARRAY_BUFFER, 4 * sizeof(Vertex), vertexData, GL_DYNAMIC_DRAW);
     GLuint err = glGetError();
     assert(err==GL_NO_ERROR);
     
@@ -269,7 +269,7 @@ void GLPrimitiveRenderer::drawTexturedRect(float x0, float y0, float x1, float y
         { vec4( -1.+2.*x1/float(m_screenWidth), 1.-2.*y0/float(m_screenHeight), 1, 0 ), vec4( color[0], color[1], color[2], color[3] ) ,vec2(u1,v0)}
     };
     
-	   glBufferData(GL_ARRAY_BUFFER, 4 * sizeof(Vertex), vertexData, GL_STATIC_DRAW);
+	   glBufferSubData(GL_ARRAY_BUFFER, 0,4 * sizeof(Vertex), vertexData);
 
 
 

src/Bullet3OpenCL/CMakeLists.txt

@@ -6,6 +6,8 @@ SET(Bullet3OpenCL_clew_SRCS
 	  ../clew/clew.c
     BroadphaseCollision/b3GpuGridBroadphase.cpp
     BroadphaseCollision/b3GpuSapBroadphase.cpp
+	BroadphaseCollision/b3GpuParallelLinearBvhBroadphase.cpp
+	BroadphaseCollision/b3GpuParallelLinearBvh.cpp
     Initialize/b3OpenCLUtils.cpp
     NarrowphaseCollision/b3ContactCache.cpp
     NarrowphaseCollision/b3ConvexHullContact.cpp