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
61
62
|
#pragma once
#include <cstdint>
#include <type_traits>
namespace mbgl {
namespace gl {
// Mapping based on https://www.opengl.org/wiki/OpenGL_Type
using ProgramID = uint32_t;
using ShaderID = uint32_t;
using BufferID = uint32_t;
using TextureID = uint32_t;
using VertexArrayID = uint32_t;
using FramebufferID = uint32_t;
using RenderbufferID = uint32_t;
// OpenGL does not formally define a type for attribute locations, but most APIs use
// GLuint. The exception is glGetAttribLocation, which returns GLint so that -1 can
// be used as an error indicator.
using AttributeLocation = uint32_t;
// OpenGL does not formally define a type for uniform locations, but all APIs use GLint.
// The value -1 is special, typically used as a placeholder for an unused uniform and
// "silently ignored".
using UniformLocation = int32_t;
enum class ShaderType : uint32_t {
Vertex = 0x8B31,
Fragment = 0x8B30
};
struct PixelStorageType {
int32_t alignment;
};
constexpr bool operator!=(const PixelStorageType& a, const PixelStorageType& b) {
return a.alignment != b.alignment;
}
enum class UniformDataType : uint32_t {
Float = 0x1406,
FloatVec2 = 0x8B50,
FloatVec3 = 0x8B51,
FloatVec4 = 0x8B52,
Int = 0x1404,
IntVec2 = 0x8B53,
IntVec3 = 0x8B54,
IntVec4 = 0x8B55,
Bool = 0x8B56,
BoolVec2 = 0x8B57,
BoolVec3 = 0x8B58,
BoolVec4 = 0x8B59,
FloatMat2 = 0x8B5A,
FloatMat3 = 0x8B5B,
FloatMat4 = 0x8B5C,
Sampler2D = 0x8B5E,
SamplerCube = 0x8B60,
};
} // namespace gl
} // namespace mbgl
|
