forked from bartvdbraak/blender
309 lines
7.1 KiB
C++
309 lines
7.1 KiB
C++
//
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#include <iostream>
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#include "RAS_ListRasterizer.h"
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#ifdef WIN32
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#include <windows.h>
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#endif // WIN32
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#include "GL/glew.h"
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#include "RAS_MaterialBucket.h"
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#include "RAS_TexVert.h"
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#include "MT_assert.h"
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//#ifndef NDEBUG
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//#ifdef WIN32
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//#define spit(x) std::cout << x << std::endl;
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//#endif //WIN32
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//#else
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#define spit(x)
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//#endif
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RAS_ListSlot::RAS_ListSlot(RAS_ListRasterizer* rasty)
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: KX_ListSlot(),
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m_list(0),
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m_flag(LIST_MODIFY|LIST_CREATE),
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m_matnr(0),
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m_rasty(rasty)
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{
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}
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int RAS_ListSlot::Release()
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{
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if (--m_refcount > 0)
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return m_refcount;
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m_rasty->RemoveListSlot(this);
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delete this;
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return 0;
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}
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RAS_ListSlot::~RAS_ListSlot()
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{
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RemoveList();
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}
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void RAS_ListSlot::RemoveList()
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{
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if(m_list != 0) {
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spit("Releasing display list (" << m_list << ")");
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glDeleteLists((GLuint)m_list, 1);
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m_list =0;
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}
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}
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void RAS_ListSlot::DrawList()
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{
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if(m_flag &LIST_STREAM || m_flag& LIST_NOCREATE) {
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RemoveList();
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return;
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}
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if(m_flag &LIST_MODIFY) {
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if(m_flag &LIST_CREATE) {
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if(m_list == 0) {
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m_list = (unsigned int)glGenLists(1);
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m_flag = m_flag &~ LIST_CREATE;
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spit("Created display list (" << m_list << ")");
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}
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}
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if(m_list != 0)
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glNewList((GLuint)m_list, GL_COMPILE);
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m_flag |= LIST_BEGIN;
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return;
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}
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glCallList(m_list);
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}
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void RAS_ListSlot::EndList()
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{
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if(m_flag & LIST_BEGIN) {
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glEndList();
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m_flag = m_flag &~(LIST_BEGIN|LIST_MODIFY);
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m_flag |= LIST_END;
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glCallList(m_list);
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}
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}
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void RAS_ListSlot::SetModified(bool mod)
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{
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if(mod && !(m_flag & LIST_MODIFY)) {
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spit("Modifying list (" << m_list << ")");
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m_flag = m_flag &~ LIST_END;
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m_flag |= LIST_STREAM;
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}
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}
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bool RAS_ListSlot::End()
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{
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return (m_flag &LIST_END)!=0;
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}
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RAS_ListRasterizer::RAS_ListRasterizer(RAS_ICanvas* canvas, bool useVertexArrays, bool lock)
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: RAS_VAOpenGLRasterizer(canvas, lock),
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mUseVertexArrays(useVertexArrays),
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mATI(false)
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{
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if (!strcmp((const char*)glGetString(GL_VENDOR), "ATI Technologies Inc."))
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mATI = true;
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}
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RAS_ListRasterizer::~RAS_ListRasterizer()
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{
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ReleaseAlloc();
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}
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void RAS_ListRasterizer::RemoveListSlot(RAS_ListSlot* list)
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{
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if (list->m_flag & LIST_DERIVEDMESH) {
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RAS_DerivedMeshLists::iterator it = mDerivedMeshLists.begin();
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while(it != mDerivedMeshLists.end()) {
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RAS_ListSlots *slots = it->second;
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if (slots->size() > list->m_matnr && slots->at(list->m_matnr) == list) {
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(*slots)[list->m_matnr] = NULL;
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// check if all slots are NULL and if yes, delete the entry
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int i;
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for (i=slots->size(); i-- > 0; ) {
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if (slots->at(i) != NULL)
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break;
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}
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if (i < 0) {
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slots->clear();
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delete slots;
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mDerivedMeshLists.erase(it);
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}
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break;
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}
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++it;
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}
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} else {
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RAS_ArrayLists::iterator it = mArrayLists.begin();
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while(it != mArrayLists.end()) {
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if (it->second == list) {
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mArrayLists.erase(it);
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break;
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}
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it++;
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}
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}
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}
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RAS_ListSlot* RAS_ListRasterizer::FindOrAdd(RAS_MeshSlot& ms)
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{
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/*
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Keep a copy of constant lists submitted for rendering,
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this guards against (replicated)new...delete every frame,
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and we can reuse lists!
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:: sorted by mesh slot
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*/
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RAS_ListSlot* localSlot = (RAS_ListSlot*)ms.m_DisplayList;
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if(!localSlot) {
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if (ms.m_pDerivedMesh) {
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// that means that we draw based on derived mesh, a display list is possible
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// Note that we come here only for static derived mesh
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int matnr = ms.m_bucket->GetPolyMaterial()->GetMaterialIndex();
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RAS_ListSlot* nullSlot = NULL;
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RAS_ListSlots *listVector;
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RAS_DerivedMeshLists::iterator it = mDerivedMeshLists.find(ms.m_pDerivedMesh);
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if(it == mDerivedMeshLists.end()) {
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listVector = new RAS_ListSlots(matnr+4, nullSlot);
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localSlot = new RAS_ListSlot(this);
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localSlot->m_flag |= LIST_DERIVEDMESH;
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localSlot->m_matnr = matnr;
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listVector->at(matnr) = localSlot;
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mDerivedMeshLists.insert(std::pair<DerivedMesh*, RAS_ListSlots*>(ms.m_pDerivedMesh, listVector));
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} else {
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listVector = it->second;
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if (listVector->size() <= matnr)
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listVector->resize(matnr+4, nullSlot);
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if ((localSlot = listVector->at(matnr)) == NULL) {
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localSlot = new RAS_ListSlot(this);
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localSlot->m_flag |= LIST_DERIVEDMESH;
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localSlot->m_matnr = matnr;
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listVector->at(matnr) = localSlot;
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} else {
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localSlot->AddRef();
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}
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}
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} else {
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RAS_ArrayLists::iterator it = mArrayLists.find(ms.m_displayArrays);
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if(it == mArrayLists.end()) {
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localSlot = new RAS_ListSlot(this);
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mArrayLists.insert(std::pair<RAS_DisplayArrayList, RAS_ListSlot*>(ms.m_displayArrays, localSlot));
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} else {
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localSlot = static_cast<RAS_ListSlot*>(it->second->AddRef());
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}
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}
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}
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MT_assert(localSlot);
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return localSlot;
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}
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void RAS_ListRasterizer::ReleaseAlloc()
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{
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for(RAS_ArrayLists::iterator it = mArrayLists.begin();it != mArrayLists.end();++it)
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delete it->second;
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mArrayLists.clear();
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for (RAS_DerivedMeshLists::iterator it = mDerivedMeshLists.begin();it != mDerivedMeshLists.end();++it) {
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RAS_ListSlots* slots = it->second;
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for (int i=slots->size(); i-- > 0; ) {
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RAS_ListSlot* slot = slots->at(i);
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if (slot)
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delete slot;
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}
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slots->clear();
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delete slots;
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}
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mDerivedMeshLists.clear();
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}
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void RAS_ListRasterizer::IndexPrimitives(RAS_MeshSlot& ms)
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{
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RAS_ListSlot* localSlot =0;
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if(ms.m_bDisplayList) {
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localSlot = FindOrAdd(ms);
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localSlot->DrawList();
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if(localSlot->End()) {
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// save slot here too, needed for replicas and object using same mesh
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// => they have the same vertexarray but different mesh slot
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ms.m_DisplayList = localSlot;
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return;
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}
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}
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// derived mesh cannot use vertex array
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if (mUseVertexArrays && !ms.m_pDerivedMesh)
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RAS_VAOpenGLRasterizer::IndexPrimitives(ms);
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else
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RAS_OpenGLRasterizer::IndexPrimitives(ms);
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if(ms.m_bDisplayList) {
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localSlot->EndList();
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ms.m_DisplayList = localSlot;
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}
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}
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void RAS_ListRasterizer::IndexPrimitivesMulti(RAS_MeshSlot& ms)
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{
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RAS_ListSlot* localSlot =0;
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if(ms.m_bDisplayList) {
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localSlot = FindOrAdd(ms);
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localSlot->DrawList();
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if(localSlot->End()) {
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// save slot here too, needed for replicas and object using same mesh
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// => they have the same vertexarray but different mesh slot
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ms.m_DisplayList = localSlot;
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return;
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}
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}
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// workaround: note how we do not use vertex arrays for making display
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// lists, since glVertexAttribPointerARB doesn't seem to work correct
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// in display lists on ATI? either a bug in the driver or in Blender ..
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if (mUseVertexArrays && !mATI && !ms.m_pDerivedMesh)
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RAS_VAOpenGLRasterizer::IndexPrimitivesMulti(ms);
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else
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RAS_OpenGLRasterizer::IndexPrimitivesMulti(ms);
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if(ms.m_bDisplayList) {
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localSlot->EndList();
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ms.m_DisplayList = localSlot;
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}
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}
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bool RAS_ListRasterizer::Init(void)
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{
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if (mUseVertexArrays) {
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return RAS_VAOpenGLRasterizer::Init();
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} else {
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return RAS_OpenGLRasterizer::Init();
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}
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}
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void RAS_ListRasterizer::SetDrawingMode(int drawingmode)
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{
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if (mUseVertexArrays) {
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RAS_VAOpenGLRasterizer::SetDrawingMode(drawingmode);
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} else {
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RAS_OpenGLRasterizer::SetDrawingMode(drawingmode);
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}
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}
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void RAS_ListRasterizer::Exit()
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{
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if (mUseVertexArrays) {
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RAS_VAOpenGLRasterizer::Exit();
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} else {
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RAS_OpenGLRasterizer::Exit();
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}
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}
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// eof
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