diff options
Diffstat (limited to 'src/graphics/opengl/gldevice.cpp')
-rw-r--r-- | src/graphics/opengl/gldevice.cpp | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/src/graphics/opengl/gldevice.cpp b/src/graphics/opengl/gldevice.cpp index a6ba1eb..2d284d0 100644 --- a/src/graphics/opengl/gldevice.cpp +++ b/src/graphics/opengl/gldevice.cpp @@ -73,6 +73,8 @@ CGLDevice::CGLDevice(const GLDeviceConfig &config) { m_config = config; m_lighting = false; + m_lastVboId = 0; + m_useVbo = false; } @@ -109,6 +111,16 @@ bool CGLDevice::Create() GetLogger()->Error("GLEW reports required extensions not supported\n"); return false; } + + if (GLEW_ARB_vertex_buffer_object) + { + GetLogger()->Info("Detected ARB_vertex_buffer_object extension - using VBOs\n"); + m_useVbo = true; + } + else + { + GetLogger()->Info("No ARB_vertex_buffer_object extension present - using display lists\n"); + } } #endif @@ -174,6 +186,16 @@ void CGLDevice::ConfigChanged(const GLDeviceConfig& newConfig) Create(); } +void CGLDevice::SetUseVbo(bool useVbo) +{ + m_useVbo = useVbo; +} + +bool CGLDevice::GetUseVbo() +{ + return m_useVbo; +} + void CGLDevice::BeginScene() { Clear(); @@ -927,6 +949,206 @@ void CGLDevice::DrawPrimitive(PrimitiveType type, const VertexCol *vertices, int glDisableClientState(GL_COLOR_ARRAY); } +unsigned int CGLDevice::CreateStaticObject(PrimitiveType primitiveType, const Vertex* vertices, int vertexCount) +{ + unsigned int id = 0; + if (m_useVbo) + { + id = ++m_lastVboId; + + VboObjectInfo info; + info.primitiveType = primitiveType; + info.vertexType = VERTEX_TYPE_NORMAL; + info.vertexCount = vertexCount; + info.bufferId = 0; + + glGenBuffers(1, &info.bufferId); + glBindBuffer(GL_ARRAY_BUFFER, info.bufferId); + glBufferData(GL_ARRAY_BUFFER, vertexCount * sizeof(Vertex), vertices, GL_STATIC_DRAW); + glBindBuffer(GL_ARRAY_BUFFER, 0); + + m_vboObjects[id] = info; + } + else + { + id = glGenLists(1); + + glNewList(id, GL_COMPILE); + + DrawPrimitive(primitiveType, vertices, vertexCount); + + glEndList(); + } + + return id; +} + +unsigned int CGLDevice::CreateStaticObject(PrimitiveType primitiveType, const VertexTex2* vertices, int vertexCount) +{ + unsigned int id = 0; + if (m_useVbo) + { + id = ++m_lastVboId; + + VboObjectInfo info; + info.primitiveType = primitiveType; + info.vertexType = VERTEX_TYPE_TEX2; + info.vertexCount = vertexCount; + info.bufferId = 0; + + glGenBuffers(1, &info.bufferId); + glBindBuffer(GL_ARRAY_BUFFER, info.bufferId); + glBufferData(GL_ARRAY_BUFFER, vertexCount * sizeof(VertexTex2), vertices, GL_STATIC_DRAW); + glBindBuffer(GL_ARRAY_BUFFER, 0); + + m_vboObjects[id] = info; + } + else + { + id = glGenLists(1); + + glNewList(id, GL_COMPILE); + + DrawPrimitive(primitiveType, vertices, vertexCount); + + glEndList(); + } + + return id; +} + +unsigned int CGLDevice::CreateStaticObject(PrimitiveType primitiveType, const VertexCol* vertices, int vertexCount) +{ + unsigned int id = 0; + if (m_useVbo) + { + id = ++m_lastVboId; + + VboObjectInfo info; + info.primitiveType = primitiveType; + info.vertexType = VERTEX_TYPE_COL; + info.vertexCount = vertexCount; + info.bufferId = 0; + + glGenBuffers(1, &info.bufferId); + glBindBuffer(GL_ARRAY_BUFFER, info.bufferId); + glBufferData(GL_ARRAY_BUFFER, vertexCount * sizeof(VertexCol), vertices, GL_STATIC_DRAW); + glBindBuffer(GL_ARRAY_BUFFER, 0); + + m_vboObjects[id] = info; + } + else + { + id = glGenLists(1); + + glNewList(id, GL_COMPILE); + + DrawPrimitive(primitiveType, vertices, vertexCount); + + glEndList(); + } + + return id; +} + +void CGLDevice::DrawStaticObject(unsigned int objectId) +{ + if (m_useVbo) + { + auto it = m_vboObjects.find(objectId); + if (it == m_vboObjects.end()) + return; + + glEnable(GL_VERTEX_ARRAY); + glBindBuffer(GL_ARRAY_BUFFER, (*it).second.bufferId); + + if ((*it).second.vertexType == VERTEX_TYPE_NORMAL) + { + glEnableClientState(GL_VERTEX_ARRAY); + glVertexPointer(3, GL_FLOAT, sizeof(Vertex), static_cast<char*>(nullptr) + offsetof(Vertex, coord)); + + glEnableClientState(GL_NORMAL_ARRAY); + glNormalPointer(GL_FLOAT, sizeof(Vertex), static_cast<char*>(nullptr) + offsetof(Vertex, normal)); + + glActiveTexture(GL_TEXTURE0); + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + glTexCoordPointer(2, GL_FLOAT, sizeof(Vertex), static_cast<char*>(nullptr) + offsetof(Vertex, texCoord)); + } + else if ((*it).second.vertexType == VERTEX_TYPE_TEX2) + { + glEnableClientState(GL_VERTEX_ARRAY); + glVertexPointer(3, GL_FLOAT, sizeof(VertexTex2), static_cast<char*>(nullptr) + offsetof(VertexTex2, coord)); + + glEnableClientState(GL_NORMAL_ARRAY); + glNormalPointer(GL_FLOAT, sizeof(VertexTex2), static_cast<char*>(nullptr) + offsetof(VertexTex2, normal)); + + glClientActiveTexture(GL_TEXTURE0); + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + glTexCoordPointer(2, GL_FLOAT, sizeof(VertexTex2), static_cast<char*>(nullptr) + offsetof(VertexTex2, texCoord)); + + glClientActiveTexture(GL_TEXTURE1); + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + glTexCoordPointer(2, GL_FLOAT, sizeof(VertexTex2), static_cast<char*>(nullptr) + offsetof(VertexTex2, texCoord2)); + } + else if ((*it).second.vertexType == VERTEX_TYPE_COL) + { + glEnableClientState(GL_VERTEX_ARRAY); + glVertexPointer(3, GL_FLOAT, sizeof(VertexCol), static_cast<char*>(nullptr) + offsetof(VertexCol, coord)); + + glEnableClientState(GL_COLOR_ARRAY); + glColorPointer(4, GL_FLOAT, sizeof(VertexCol), static_cast<char*>(nullptr) + offsetof(VertexCol, color)); + } + + GLenum mode = TranslateGfxPrimitive((*it).second.primitiveType); + glDrawArrays(GL_TRIANGLES, 0, (*it).second.vertexCount); + + if ((*it).second.vertexType == VERTEX_TYPE_NORMAL) + { + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_NORMAL_ARRAY); + glDisableClientState(GL_TEXTURE_COORD_ARRAY); // GL_TEXTURE0 + } + else if ((*it).second.vertexType == VERTEX_TYPE_TEX2) + { + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_NORMAL_ARRAY); + glDisableClientState(GL_TEXTURE_COORD_ARRAY); // GL_TEXTURE1 + glClientActiveTexture(GL_TEXTURE0); + glDisableClientState(GL_TEXTURE_COORD_ARRAY); + } + else if ((*it).second.vertexType == VERTEX_TYPE_COL) + { + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_COLOR_ARRAY); + } + + glBindBuffer(GL_ARRAY_BUFFER, 0); + glDisable(GL_VERTEX_ARRAY); + } + else + { + glCallList(objectId); + } +} + +void CGLDevice::DestroyStaticObject(unsigned int objectId) +{ + if (m_useVbo) + { + auto it = m_vboObjects.find(objectId); + if (it == m_vboObjects.end()) + return; + + glDeleteBuffers(1, &(*it).second.bufferId); + + m_vboObjects.erase(it); + } + else + { + glDeleteLists(objectId, 1); + } +} + bool InPlane(Math::Vector normal, float originPlane, Math::Vector center, float radius) { float distance = originPlane + Math::DotProduct(normal, center); |