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#include <llmr/geometry/vertex_buffer.hpp>
#include <llmr/platform/gl.hpp>
using namespace llmr;
VertexBuffer::VertexBuffer(std::initializer_list<int16_t> init) : array(init) {}
VertexBuffer::~VertexBuffer() {
if (buffer != 0) {
glDeleteBuffers(1, &buffer);
}
}
size_t VertexBuffer::index() const {
// We store 2 coordinates per vertex + 1 linesofar + 1 extrude coord pair == 4 (== 8 bytes)
return array.size() / 2;
}
void VertexBuffer::bind() {
if (buffer == 0) {
glGenBuffers(1, &buffer);
glBindBuffer(GL_ARRAY_BUFFER, buffer);
glBufferData(GL_ARRAY_BUFFER, array.size() * sizeof(vertex_type), array.data(), GL_STATIC_DRAW);
} else {
glBindBuffer(GL_ARRAY_BUFFER, buffer);
}
}
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