gfx/angle/src/libGLESv2/renderer/VertexBuffer9.h

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TOR_BUG_3246
changeset 7
129ffea94266
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-1:000000000000 0:42cc51a5b8a5
1 //
2 // Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6
7 // VertexBuffer9.h: Defines the D3D9 VertexBuffer implementation.
8
9 #ifndef LIBGLESV2_RENDERER_VERTEXBUFFER9_H_
10 #define LIBGLESV2_RENDERER_VERTEXBUFFER9_H_
11
12 #include "libGLESv2/renderer/VertexBuffer.h"
13
14 namespace rx
15 {
16 class Renderer9;
17
18 class VertexBuffer9 : public VertexBuffer
19 {
20 public:
21 explicit VertexBuffer9(rx::Renderer9 *const renderer);
22 virtual ~VertexBuffer9();
23
24 virtual bool initialize(unsigned int size, bool dynamicUsage);
25
26 static VertexBuffer9 *makeVertexBuffer9(VertexBuffer *vertexBuffer);
27
28 virtual bool storeVertexAttributes(const gl::VertexAttribute &attrib, GLint start, GLsizei count, GLsizei instances,
29 unsigned int offset);
30 virtual bool storeRawData(const void* data, unsigned int size, unsigned int offset);
31
32 virtual bool getSpaceRequired(const gl::VertexAttribute &attrib, GLsizei count, GLsizei instances, unsigned int *outSpaceRequired) const;
33
34 virtual bool requiresConversion(const gl::VertexAttribute &attrib) const;
35
36 unsigned int getVertexSize(const gl::VertexAttribute &attrib) const;
37 D3DDECLTYPE getDeclType(const gl::VertexAttribute &attrib) const;
38
39 virtual unsigned int getBufferSize() const;
40 virtual bool setBufferSize(unsigned int size);
41 virtual bool discard();
42
43 IDirect3DVertexBuffer9 *getBuffer() const;
44
45 private:
46 DISALLOW_COPY_AND_ASSIGN(VertexBuffer9);
47
48 rx::Renderer9 *const mRenderer;
49
50 IDirect3DVertexBuffer9 *mVertexBuffer;
51 unsigned int mBufferSize;
52 bool mDynamicUsage;
53
54 // Attribute format conversion
55 enum { NUM_GL_VERTEX_ATTRIB_TYPES = 6 };
56
57 struct FormatConverter
58 {
59 bool identity;
60 std::size_t outputElementSize;
61 void (*convertArray)(const void *in, std::size_t stride, std::size_t n, void *out);
62 D3DDECLTYPE d3dDeclType;
63 };
64
65 static bool mTranslationsInitialized;
66 static void initializeTranslations(DWORD declTypes);
67
68 // [GL types as enumerated by typeIndex()][normalized][size - 1]
69 static FormatConverter mFormatConverters[NUM_GL_VERTEX_ATTRIB_TYPES][2][4];
70
71 struct TranslationDescription
72 {
73 DWORD capsFlag;
74 FormatConverter preferredConversion;
75 FormatConverter fallbackConversion;
76 };
77
78 // This table is used to generate mFormatConverters.
79 // [GL types as enumerated by typeIndex()][normalized][size - 1]
80 static const TranslationDescription mPossibleTranslations[NUM_GL_VERTEX_ATTRIB_TYPES][2][4];
81
82 static unsigned int typeIndex(GLenum type);
83 static const FormatConverter &formatConverter(const gl::VertexAttribute &attribute);
84
85 static bool spaceRequired(const gl::VertexAttribute &attrib, std::size_t count, GLsizei instances,
86 unsigned int *outSpaceRequired);
87 };
88
89 }
90
91 #endif // LIBGLESV2_RENDERER_VERTEXBUFFER9_H_

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