hip.api.renderer.vertex source code

1 module hip.api.renderer.vertex;
2 import hip.api.renderer.shader;
3 
4 // version(Android){alias index_t = ushort;}
5 // else{alias index_t = uint;}
6 alias index_t = ushort;
7 
8 
9 index_t index_t_maxQuads()
10 {
11     return cast(index_t)(ushort.max / 6);
12 }
13 index_t index_t_maxQuadIndices()
14 {
15     return cast(index_t)(index_t_maxQuads * 6);
16 }
17 
18 /**
19  * Information about how the resource is used.
20  */
21 enum HipResourceUsage : ubyte
22 {
23     ///Usually means the resource is able to change, but with subpar speed
24     Default,
25     ///Means that the resource is optimized to be changed from the CPU
26     Dynamic,
27     ///The resource is immutable and can't be changed
28     Immutable,
29 }
30 
31 enum HipAttributeType : ubyte
32 {
33     ///Used as a unsigned r8g8b8a8 normalized type.
34     Rgba32,
35     Float,
36     Uint,
37     Int,
38     Bool
39 }
40 
41 
42 struct HipVertexAttributeInfo
43 {
44     uint index;
45     uint count;
46     uint offset;
47     uint typeSize;
48     HipAttributeType valueType;
49     string name;
50 }
51 
52 enum HipRendererBufferType : ubyte
53 {
54     index,
55     vertex
56 }
57 
58 interface IHipRendererBuffer
59 {
60     HipRendererBufferType type() const;
61     void bind();
62     void unbind();
63     void setData(const void[] data);
64     /**
65      * This API is not available on OpenGL. Use set/update data instead.
66      * Returns: The mapped GPU buffer
67      */
68     ubyte[] getBuffer();
69     /**
70      * This API is only necessary when dealing with D3D. The buffer is automatically mapped when getBuffer is called.
71      */
72     void unmapBuffer();
73     void updateData(int offset, const void[] data);
74 }
75 
76 
77 interface IHipVertexArrayImpl
78 {
79     void bind(IHipRendererBuffer vbo, IHipRendererBuffer ebo);
80     void unbind(IHipRendererBuffer vbo, IHipRendererBuffer ebo);
81     /**
82     * GL also needs to bind both the vertex and index buffer before creatting the input layout
83     * Direct3D 11 needs vertex shader information for creating a VAO
84     * Metal needs a ShaderProgram for cerating a pipelinestate
85     */
86     void createInputLayout(
87         IHipRendererBuffer vbo, IHipRendererBuffer ebo,
88         HipVertexAttributeInfo[] info, uint stride,
89         VertexShader vertexShader,
90         ShaderProgram shaderProgram
91     );
92 }
93