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#include "../../include/mglpp/graphics/VertexBuffer.hpp"
#include "../../include/mglpp/graphics/Texture.hpp"
extern "C" {
#include <mgl/mgl.h>
}
namespace mgl {
VertexBuffer::VertexBuffer(PrimitiveType primitive_type, Usage usage) : texture(nullptr), primitive_type(primitive_type), usage(usage) {
vertex_buffer.id = 0;
}
VertexBuffer::~VertexBuffer() {
mgl_vertex_buffer_deinit(&vertex_buffer);
}
void VertexBuffer::set_position(vec2f position) {
mgl_vertex_buffer_set_position(&vertex_buffer, {position.x, position.y});
}
void VertexBuffer::set_color(Color color) {
// No-op, because the vertex buffer has colors for each vertex
(void)color;
}
vec2f VertexBuffer::get_position() const {
return { vertex_buffer.position.x, vertex_buffer.position.y };
}
void VertexBuffer::set_texture(Texture *texture) {
this->texture = texture;
}
const Texture* VertexBuffer::get_texture() const {
return texture;
}
bool VertexBuffer::update(const Vertex *vertices, size_t vertex_count) {
if(vertex_buffer.id == 0) {
int res = mgl_vertex_buffer_init(&vertex_buffer, (mgl_primitive_type)primitive_type, (mgl_vertex_buffer_usage)usage);
if(res != 0)
return false;
}
return mgl_vertex_buffer_update(&vertex_buffer, (const mgl_vertex*)vertices, vertex_count) == 0;
}
void VertexBuffer::draw(Window&) {
mgl_vertex_buffer_draw(mgl_get_context(), &vertex_buffer, texture ? texture->internal_texture() : nullptr);
}
}
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