blob: 4791a0ee22bb926cbc8532fc20f671f47bc2a98b (
plain)
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
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrShaderCaps.h"
#include "SkString.h"
#include "../private/GrGLSL.h"
bool GrGLSLSupportsNamedFragmentShaderOutputs(GrGLSLGeneration gen) {
switch (gen) {
case k110_GrGLSLGeneration:
return false;
case k130_GrGLSLGeneration:
case k140_GrGLSLGeneration:
case k150_GrGLSLGeneration:
case k330_GrGLSLGeneration:
case k400_GrGLSLGeneration:
case k420_GrGLSLGeneration:
case k310es_GrGLSLGeneration:
case k320es_GrGLSLGeneration:
return true;
}
return false;
}
const char* GrGLSLTypeString(const GrShaderCaps* shaderCaps, GrSLType t) {
switch (t) {
case kVoid_GrSLType:
return "void";
case kHalf_GrSLType:
return "half";
case kHalf2_GrSLType:
return "half2";
case kHalf3_GrSLType:
return "half3";
case kHalf4_GrSLType:
return "half4";
case kFloat_GrSLType:
return "float";
case kFloat2_GrSLType:
return "float2";
case kFloat3_GrSLType:
return "float3";
case kFloat4_GrSLType:
return "float4";
case kUint2_GrSLType:
return "uint2";
case kInt2_GrSLType:
return "int2";
case kInt3_GrSLType:
return "int3";
case kInt4_GrSLType:
return "int4";
case kFloat2x2_GrSLType:
return "float2x2";
case kFloat3x3_GrSLType:
return "float3x3";
case kFloat4x4_GrSLType:
return "float4x4";
case kHalf2x2_GrSLType:
return "half2x2";
case kHalf3x3_GrSLType:
return "half3x3";
case kHalf4x4_GrSLType:
return "half4x4";
case kTexture2DSampler_GrSLType:
return "sampler2D";
case kTextureExternalSampler_GrSLType:
return "samplerExternalOES";
case kTexture2DRectSampler_GrSLType:
return "sampler2DRect";
case kBufferSampler_GrSLType:
return "samplerBuffer";
case kBool_GrSLType:
return "bool";
case kInt_GrSLType:
return "int";
case kUint_GrSLType:
return "uint";
case kShort_GrSLType:
return "short";
case kShort2_GrSLType:
return "short2";
case kShort3_GrSLType:
return "short3";
case kShort4_GrSLType:
return "short4";
case kUShort_GrSLType:
return "ushort";
case kUShort2_GrSLType:
if (shaderCaps->integerSupport()) {
return "ushort2";
} else {
// uint2 (aka uvec2) isn't supported in GLSL ES 1.00/GLSL 1.20
// FIXME: this should be handled by the client code rather than relying on
// unconventional ushort2 behavior.
return "float2";
}
case kUShort3_GrSLType:
return "ushort3";
case kUShort4_GrSLType:
return "ushort4";
case kTexture2D_GrSLType:
return "texture2D";
case kSampler_GrSLType:
return "sampler";
}
SK_ABORT("Unknown shader var type.");
return ""; // suppress warning
}
void GrGLSLAppendDefaultFloatPrecisionDeclaration(GrSLPrecision p,
const GrShaderCaps& shaderCaps,
SkString* out) {
if (shaderCaps.usesPrecisionModifiers()) {
switch (p) {
case kHigh_GrSLPrecision:
out->append("precision highp float;\n");
break;
case kMedium_GrSLPrecision:
out->append("precision mediump float;\n");
break;
case kLow_GrSLPrecision:
out->append("precision lowp float;\n");
break;
default:
SK_ABORT("Unknown precision value.");
}
}
}
|
