OpenGLIndexBuffer::OpenGLIndexBuffer(const std::vector<uint32_t> &indices,
BufferUsage bu):
Buffer(bu), OpenGLObject(glGenBuffers, glDeleteBuffers),
m_size(indices.size()*sizeof(uint32_t)), lockedPtr(nullptr)
{
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, getID());
glBufferData(GL_ELEMENT_ARRAY_BUFFER, m_size, indices.data(), BufferUsageOpenGLMap[getBufferUsage()]);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
}
OpenGLVertexBuffer::OpenGLVertexBuffer(const void *data, const uint32_t size,
BufferUsage bu):
Buffer(bu), OpenGLObject(glGenBuffers, glDeleteBuffers), m_size(size),
lockedPtr(nullptr)
{
glBindBuffer(GL_ARRAY_BUFFER, getID());
glBufferData(GL_ARRAY_BUFFER, m_size, data, BufferUsageOpenGLMap[getBufferUsage()]);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
void GPUBuffer::setData(int size, const void *data, BufferUsage u)
{
assert(mappedData == NULL);
this->size = size;
glBindBuffer(GL_COPY_WRITE_BUFFER, bufferId);
glBufferData(GL_COPY_WRITE_BUFFER, size, data, getBufferUsage(u));
glBindBuffer(GL_COPY_WRITE_BUFFER, 0);
assert(FrameBuffer::getError() == GL_NO_ERROR);
if (cpuData != NULL) {
delete[] cpuData;
cpuData = NULL;
}
#ifdef CUSTOM_MAP_BUFFER
if (size < 1024) {
cpuData = new unsigned char[size];
if (data != NULL) {
memcpy(cpuData, (unsigned char*) data, size);
}
isDirty = false;
}
#endif
}
