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
|
#include "wireframe-mesh.hpp"
#include "shaders/tile-shader.hpp"
#include <Corrade/Containers/Array.h>
#include <Magnum/GL/Renderer.h>
#include <Magnum/GL/TextureFormat.h>
#include <Magnum/ImageFlags.h>
#include <Magnum/ImageView.h>
#include <Magnum/PixelFormat.h>
#include <Magnum/PixelStorage.h>
#include <Magnum/Trade/ImageData.h>
namespace Magnum::Examples::wireframe
{
GL::RectangleTexture mesh_base::make_constant_texture()
{
const Vector4ub data[] = { {255, 255, 255, 255} };
Trade::ImageData2D img{PixelStorage{}.setImageHeight(1).setRowLength(1).setAlignment(1),
PixelFormat::RGBA8Unorm, {1, 1}, {},
Containers::arrayView(data, 1), {}, {}};
GL::RectangleTexture tex;
tex.setWrapping(GL::SamplerWrapping::ClampToEdge)
.setMagnificationFilter(GL::SamplerFilter::Nearest)
.setMinificationFilter(GL::SamplerFilter::Nearest)
.setMaxAnisotropy(1)
.setStorage(GL::textureFormat(img.format()), img.size())
.setSubImage({}, std::move(img));
return tex;
}
mesh_base::mesh_base(GL::MeshPrimitive primitive, std::size_t num_vertices) :
_texcoords_buffer{std::vector<Vector2>{num_vertices}}
{
_mesh.setCount((int)num_vertices)
.setPrimitive(primitive)
.addVertexBuffer(_vertex_buffer, 0, tile_shader::Position{})
.addVertexBuffer(_texcoords_buffer, 0, tile_shader::TextureCoordinates{});
}
void mesh_base::draw(tile_shader& shader)
{
_texture.bind(0);
shader.draw(_mesh);
}
} // namespace Magnum::Examples::wireframe
|
