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1 //
2 // Copyright 2014 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 // UtilsHLSL.h:
7 //   Utility methods for GLSL to HLSL translation.
8 //
9 
10 #ifndef COMPILER_TRANSLATOR_UTILSHLSL_H_
11 #define COMPILER_TRANSLATOR_UTILSHLSL_H_
12 
13 #include <vector>
14 #include "compiler/translator/IntermNode.h"
15 #include "compiler/translator/Types.h"
16 
17 #include "angle_gl.h"
18 
19 namespace sh
20 {
21 
22 class TFunction;
23 
24 // HLSL Texture type for GLSL sampler type and readonly image type.
25 enum HLSLTextureGroup
26 {
27     // read resources
28     HLSL_TEXTURE_2D,
29     HLSL_TEXTURE_MIN = HLSL_TEXTURE_2D,
30 
31     HLSL_TEXTURE_CUBE,
32     HLSL_TEXTURE_2D_ARRAY,
33     HLSL_TEXTURE_3D,
34     HLSL_TEXTURE_2D_UNORM,
35     HLSL_TEXTURE_CUBE_UNORM,
36     HLSL_TEXTURE_2D_ARRAY_UNORN,
37     HLSL_TEXTURE_3D_UNORM,
38     HLSL_TEXTURE_2D_SNORM,
39     HLSL_TEXTURE_CUBE_SNORM,
40     HLSL_TEXTURE_2D_ARRAY_SNORM,
41     HLSL_TEXTURE_3D_SNORM,
42     HLSL_TEXTURE_2D_MS,
43     HLSL_TEXTURE_2D_MS_ARRAY,
44     HLSL_TEXTURE_2D_INT4,
45     HLSL_TEXTURE_3D_INT4,
46     HLSL_TEXTURE_2D_ARRAY_INT4,
47     HLSL_TEXTURE_2D_MS_INT4,
48     HLSL_TEXTURE_2D_MS_ARRAY_INT4,
49     HLSL_TEXTURE_2D_UINT4,
50     HLSL_TEXTURE_3D_UINT4,
51     HLSL_TEXTURE_2D_ARRAY_UINT4,
52     HLSL_TEXTURE_2D_MS_UINT4,
53     HLSL_TEXTURE_2D_MS_ARRAY_UINT4,
54 
55     // Comparison samplers
56 
57     HLSL_TEXTURE_2D_COMPARISON,
58     HLSL_TEXTURE_CUBE_COMPARISON,
59     HLSL_TEXTURE_2D_ARRAY_COMPARISON,
60 
61     HLSL_COMPARISON_SAMPLER_GROUP_BEGIN = HLSL_TEXTURE_2D_COMPARISON,
62     HLSL_COMPARISON_SAMPLER_GROUP_END   = HLSL_TEXTURE_2D_ARRAY_COMPARISON,
63 
64     HLSL_TEXTURE_UNKNOWN,
65     HLSL_TEXTURE_MAX = HLSL_TEXTURE_UNKNOWN
66 };
67 
68 // HLSL RWTexture type for GLSL read and write image type.
69 enum HLSLRWTextureGroup
70 {
71     // read/write resource
72     HLSL_RWTEXTURE_2D_FLOAT4,
73     HLSL_RWTEXTURE_MIN = HLSL_RWTEXTURE_2D_FLOAT4,
74     HLSL_RWTEXTURE_2D_ARRAY_FLOAT4,
75     HLSL_RWTEXTURE_3D_FLOAT4,
76     HLSL_RWTEXTURE_2D_UNORM,
77     HLSL_RWTEXTURE_2D_ARRAY_UNORN,
78     HLSL_RWTEXTURE_3D_UNORM,
79     HLSL_RWTEXTURE_2D_SNORM,
80     HLSL_RWTEXTURE_2D_ARRAY_SNORM,
81     HLSL_RWTEXTURE_3D_SNORM,
82     HLSL_RWTEXTURE_2D_UINT4,
83     HLSL_RWTEXTURE_2D_ARRAY_UINT4,
84     HLSL_RWTEXTURE_3D_UINT4,
85     HLSL_RWTEXTURE_2D_INT4,
86     HLSL_RWTEXTURE_2D_ARRAY_INT4,
87     HLSL_RWTEXTURE_3D_INT4,
88 
89     HLSL_RWTEXTURE_UNKNOWN,
90     HLSL_RWTEXTURE_MAX = HLSL_RWTEXTURE_UNKNOWN
91 };
92 
93 HLSLTextureGroup TextureGroup(const TBasicType type,
94                               TLayoutImageInternalFormat imageInternalFormat = EiifUnspecified);
95 const char *TextureString(const HLSLTextureGroup textureGroup);
96 const char *TextureString(const TBasicType type,
97                           TLayoutImageInternalFormat imageInternalFormat = EiifUnspecified);
98 const char *TextureGroupSuffix(const HLSLTextureGroup type);
99 const char *TextureGroupSuffix(const TBasicType type,
100                                TLayoutImageInternalFormat imageInternalFormat = EiifUnspecified);
101 const char *TextureTypeSuffix(const TBasicType type,
102                               TLayoutImageInternalFormat imageInternalFormat = EiifUnspecified);
103 HLSLRWTextureGroup RWTextureGroup(const TBasicType type,
104                                   TLayoutImageInternalFormat imageInternalFormat);
105 const char *RWTextureString(const HLSLRWTextureGroup textureGroup);
106 const char *RWTextureString(const TBasicType type, TLayoutImageInternalFormat imageInternalFormat);
107 const char *RWTextureGroupSuffix(const HLSLRWTextureGroup type);
108 const char *RWTextureGroupSuffix(const TBasicType type,
109                                  TLayoutImageInternalFormat imageInternalFormat);
110 const char *RWTextureTypeSuffix(const TBasicType type,
111                                 TLayoutImageInternalFormat imageInternalFormat);
112 
113 const char *SamplerString(const TBasicType type);
114 const char *SamplerString(HLSLTextureGroup type);
115 
116 // Adds a prefix to user-defined names to avoid naming clashes.
117 TString Decorate(const ImmutableString &string);
118 TString DecorateVariableIfNeeded(const TVariable &variable);
119 TString DecorateFunctionIfNeeded(const TFunction *func);
120 TString DecorateField(const ImmutableString &string, const TStructure &structure);
121 TString DecoratePrivate(const ImmutableString &privateText);
122 TString TypeString(const TType &type);
123 TString StructNameString(const TStructure &structure);
124 TString QualifiedStructNameString(const TStructure &structure,
125                                   bool useHLSLRowMajorPacking,
126                                   bool useStd140Packing,
127                                   bool forcePackingEnd);
128 const char *InterpolationString(TQualifier qualifier);
129 const char *QualifierString(TQualifier qualifier);
130 // Parameters may need to be included in function names to disambiguate between overloaded
131 // functions.
132 TString DisambiguateFunctionName(const TFunction *func);
133 TString DisambiguateFunctionName(const TIntermSequence *args);
134 }  // namespace sh
135 
136 #endif  // COMPILER_TRANSLATOR_UTILSHLSL_H_
137