1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
#include <mbgl/gl/attribute.hpp>
#include <mbgl/gl/context.hpp>
#include <mbgl/gl/gl.hpp>
namespace mbgl {
namespace gl {
AttributeLocation bindAttributeLocation(ProgramID id, AttributeLocation location, const char* name) {
MBGL_CHECK_ERROR(glBindAttribLocation(id, location, name));
return location;
}
void DisabledAttribute::bind(Context&, AttributeLocation location, std::size_t) const {
MBGL_CHECK_ERROR(glDisableVertexAttribArray(location));
}
template <class T> DataType DataTypeOf = static_cast<DataType>(0);
template <> DataType DataTypeOf< int8_t> = DataType::Byte;
template <> DataType DataTypeOf<uint8_t> = DataType::UnsignedByte;
template <> DataType DataTypeOf< int16_t> = DataType::Short;
template <> DataType DataTypeOf<uint16_t> = DataType::UnsignedShort;
template <> DataType DataTypeOf< int32_t> = DataType::Integer;
template <> DataType DataTypeOf<uint32_t> = DataType::UnsignedInteger;
template <> DataType DataTypeOf<float> = DataType::Float;
template <class T, std::size_t N>
void AttributeBinding<T, N>::bind(Context& context, AttributeLocation location, std::size_t vertexOffset) const {
context.vertexBuffer = vertexBuffer;
MBGL_CHECK_ERROR(glEnableVertexAttribArray(location));
MBGL_CHECK_ERROR(glVertexAttribPointer(
location,
static_cast<GLint>(attributeSize),
static_cast<GLenum>(DataTypeOf<T>),
static_cast<GLboolean>(false),
static_cast<GLsizei>(vertexSize),
reinterpret_cast<GLvoid*>(attributeOffset + (vertexSize * vertexOffset))));
}
template class AttributeBinding<uint8_t, 1>;
template class AttributeBinding<uint8_t, 2>;
template class AttributeBinding<uint8_t, 3>;
template class AttributeBinding<uint8_t, 4>;
template class AttributeBinding<uint16_t, 1>;
template class AttributeBinding<uint16_t, 2>;
template class AttributeBinding<uint16_t, 3>;
template class AttributeBinding<uint16_t, 4>;
template class AttributeBinding<int16_t, 1>;
template class AttributeBinding<int16_t, 2>;
template class AttributeBinding<int16_t, 3>;
template class AttributeBinding<int16_t, 4>;
template class AttributeBinding<float, 1>;
template class AttributeBinding<float, 2>;
template class AttributeBinding<float, 3>;
template class AttributeBinding<float, 4>;
} // namespace gl
} // namespace mbgl
|
