void VAOManager::append(scene::IMeshBuffer *mb, VTXTYPE tp, RenderInfo* ri)
{
size_t old_vtx_cnt = last_vertex[tp];
size_t old_idx_cnt = last_index[tp];
regenerateBuffer(tp, old_vtx_cnt + mb->getVertexCount(), old_idx_cnt + mb->getIndexCount());
#if !defined(USE_GLES2)
if (CVS->supportsAsyncInstanceUpload())
{
void *tmp = (char*)VBOPtr[tp] + old_vtx_cnt * getVertexPitch(tp);
memcpy(tmp, mb->getVertices(), mb->getVertexCount() * getVertexPitch(tp));
}
else
#endif
{
glBindBuffer(GL_ARRAY_BUFFER, vbo[tp]);
glBufferSubData(GL_ARRAY_BUFFER, old_vtx_cnt * getVertexPitch(tp), mb->getVertexCount() * getVertexPitch(tp), mb->getVertices());
}
#if !defined(USE_GLES2)
if (CVS->supportsAsyncInstanceUpload())
{
void *tmp = (char*)IBOPtr[tp] + old_idx_cnt * sizeof(u16);
memcpy(tmp, mb->getIndices(), mb->getIndexCount() * sizeof(u16));
}
else
#endif
{
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo[tp]);
glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, old_idx_cnt * sizeof(u16), mb->getIndexCount() * sizeof(u16), mb->getIndices());
}
std::pair<scene::IMeshBuffer*, RenderInfo*> key(mb, ri);
mappedBaseVertex[tp][key] = old_vtx_cnt;
mappedBaseIndex[tp][key] = old_idx_cnt * sizeof(u16);
}
void VAOManager::append(scene::IMeshBuffer *mb, VTXTYPE tp)
{
size_t old_vtx_cnt = last_vertex[tp];
size_t old_idx_cnt = last_index[tp];
regenerateBuffer(tp, old_vtx_cnt + mb->getVertexCount(), old_idx_cnt + mb->getIndexCount());
if (CVS->supportsAsyncInstanceUpload())
{
void *tmp = (char*)VBOPtr[tp] + old_vtx_cnt * getVertexPitch(tp);
memcpy(tmp, mb->getVertices(), mb->getVertexCount() * getVertexPitch(tp));
}
else
{
glBindBuffer(GL_ARRAY_BUFFER, vbo[tp]);
glBufferSubData(GL_ARRAY_BUFFER, old_vtx_cnt * getVertexPitch(tp), mb->getVertexCount() * getVertexPitch(tp), mb->getVertices());
}
if (CVS->supportsAsyncInstanceUpload())
{
void *tmp = (char*)IBOPtr[tp] + old_idx_cnt * sizeof(u16);
memcpy(tmp, mb->getIndices(), mb->getIndexCount() * sizeof(u16));
}
else
{
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo[tp]);
glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, old_idx_cnt * sizeof(u16), mb->getIndexCount() * sizeof(u16), mb->getIndices());
}
mappedBaseVertex[tp][mb] = old_vtx_cnt;
mappedBaseIndex[tp][mb] = old_idx_cnt * sizeof(u16);
}
void VAOManager::regenerateBuffer(enum VTXTYPE tp, size_t newlastvertex, size_t newlastindex)
{
glBindVertexArray(0);
if (newlastindex >= RealVBOSize[tp])
{
while (newlastindex >= RealVBOSize[tp])
RealVBOSize[tp] = 2 * RealVBOSize[tp] + 1;
GLuint newVBO;
glGenBuffers(1, &newVBO);
glBindBuffer(GL_ARRAY_BUFFER, newVBO);
if (irr_driver->hasBufferStorageExtension())
{
glBufferStorage(GL_ARRAY_BUFFER, RealVBOSize[tp] * getVertexPitch(tp), 0, GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
VBOPtr[tp] = glMapBufferRange(GL_ARRAY_BUFFER, 0, RealVBOSize[tp] * getVertexPitch(tp), GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
}
else
glBufferData(GL_ARRAY_BUFFER, RealVBOSize[tp] * getVertexPitch(tp), 0, GL_DYNAMIC_DRAW);
if (vbo[tp])
{
GLuint oldVBO = vbo[tp];
glBindBuffer(GL_COPY_WRITE_BUFFER, newVBO);
glBindBuffer(GL_COPY_READ_BUFFER, oldVBO);
glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, last_vertex[tp] * getVertexPitch(tp));
glDeleteBuffers(1, &oldVBO);
}
vbo[tp] = newVBO;
}
last_vertex[tp] = newlastvertex;
if (newlastindex >= RealIBOSize[tp])
{
while (newlastindex >= RealIBOSize[tp])
RealIBOSize[tp] = 2 * RealIBOSize[tp] + 1;
GLuint newIBO;
glGenBuffers(1, &newIBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, newIBO);
if (irr_driver->hasBufferStorageExtension())
{
glBufferStorage(GL_ELEMENT_ARRAY_BUFFER, RealIBOSize[tp] * sizeof(u16), 0, GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
IBOPtr[tp] = glMapBufferRange(GL_ELEMENT_ARRAY_BUFFER, 0, RealIBOSize[tp] * sizeof(u16), GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
}
else
glBufferData(GL_ELEMENT_ARRAY_BUFFER, RealIBOSize[tp] * sizeof(u16), 0, GL_STATIC_DRAW);
if (ibo[tp])
{
GLuint oldIBO = ibo[tp];
glBindBuffer(GL_COPY_WRITE_BUFFER, newIBO);
glBindBuffer(GL_COPY_READ_BUFFER, oldIBO);
glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, last_index[tp] * sizeof(u16));
glDeleteBuffers(1, &oldIBO);
}
ibo[tp] = newIBO;
}
last_index[tp] = newlastindex;
}
void VAOManager::regenerateBuffer(enum VTXTYPE tp, size_t newlastvertex, size_t newlastindex)
{
glBindVertexArray(0);
resizeBufferIfNecessary(last_vertex[tp], newlastvertex, RealVBOSize[tp], getVertexPitch(tp), GL_ARRAY_BUFFER, vbo[tp], VBOPtr[tp]);
resizeBufferIfNecessary(last_index[tp], newlastindex, RealIBOSize[tp], sizeof(u16), GL_ELEMENT_ARRAY_BUFFER, ibo[tp], IBOPtr[tp]);
}
void VAOManager::regenerateVAO(enum VTXTYPE tp)
{
if (vao[tp])
glDeleteVertexArrays(1, &vao[tp]);
glGenVertexArrays(1, &vao[tp]);
glBindVertexArray(vao[tp]);
glBindBuffer(GL_ARRAY_BUFFER, vbo[tp]);
switch (tp)
{
case VTXTYPE_COUNT: break; // avoid compiler warning
case VTXTYPE_STANDARD:
// Position
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), 0);
// Normal
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)12);
// Color
glEnableVertexAttribArray(2);
glVertexAttribPointer(2, 4, GL_UNSIGNED_BYTE, GL_TRUE, getVertexPitch(tp), (GLvoid*)24);
// Texcoord
glEnableVertexAttribArray(3);
glVertexAttribPointer(3, 2, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)28);
break;
case VTXTYPE_TCOORD:
// Position
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), 0);
// Normal
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)12);
// Color
glEnableVertexAttribArray(2);
glVertexAttribPointer(2, 4, GL_UNSIGNED_BYTE, GL_TRUE, getVertexPitch(tp), (GLvoid*)24);
// Texcoord
glEnableVertexAttribArray(3);
glVertexAttribPointer(3, 2, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)28);
// SecondTexcoord
glEnableVertexAttribArray(4);
glVertexAttribPointer(4, 2, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)36);
break;
case VTXTYPE_TANGENT:
// Position
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), 0);
// Normal
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)12);
// Color
glEnableVertexAttribArray(2);
glVertexAttribPointer(2, 4, GL_UNSIGNED_BYTE, GL_TRUE, getVertexPitch(tp), (GLvoid*)24);
// Texcoord
glEnableVertexAttribArray(3);
glVertexAttribPointer(3, 2, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)28);
// Tangent
glEnableVertexAttribArray(5);
glVertexAttribPointer(5, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)36);
// Bitangent
glEnableVertexAttribArray(6);
glVertexAttribPointer(6, 3, GL_FLOAT, GL_FALSE, getVertexPitch(tp), (GLvoid*)48);
break;
}
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo[tp]);
glBindVertexArray(0);
}
