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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
//
// Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
#include "gtest/gtest.h"
#include "angle_gl.h"
#include "common/utilities.h"
#include "common/angleutils.h"
#include "compiler/translator/VariablePacker.h"
static sh::GLenum types[] = {
GL_FLOAT_MAT4, // 0
GL_FLOAT_MAT2, // 1
GL_FLOAT_VEC4, // 2
GL_INT_VEC4, // 3
GL_BOOL_VEC4, // 4
GL_FLOAT_MAT3, // 5
GL_FLOAT_VEC3, // 6
GL_INT_VEC3, // 7
GL_BOOL_VEC3, // 8
GL_FLOAT_VEC2, // 9
GL_INT_VEC2, // 10
GL_BOOL_VEC2, // 11
GL_FLOAT, // 12
GL_INT, // 13
GL_BOOL, // 14
GL_SAMPLER_2D, // 15
GL_SAMPLER_CUBE, // 16
GL_SAMPLER_EXTERNAL_OES, // 17
GL_SAMPLER_2D_RECT_ARB, // 18
GL_UNSIGNED_INT, // 19
GL_UNSIGNED_INT_VEC2, // 20
GL_UNSIGNED_INT_VEC3, // 21
GL_UNSIGNED_INT_VEC4, // 22
GL_FLOAT_MAT2x3, // 23
GL_FLOAT_MAT2x4, // 24
GL_FLOAT_MAT3x2, // 25
GL_FLOAT_MAT3x4, // 26
GL_FLOAT_MAT4x2, // 27
GL_FLOAT_MAT4x3, // 28
GL_SAMPLER_3D, // 29
GL_SAMPLER_2D_ARRAY, // 30
GL_SAMPLER_2D_SHADOW, // 31
GL_SAMPLER_CUBE_SHADOW, // 32
GL_SAMPLER_2D_ARRAY_SHADOW, // 33
GL_INT_SAMPLER_2D, // 34
GL_INT_SAMPLER_CUBE, // 35
GL_INT_SAMPLER_3D, // 36
GL_INT_SAMPLER_2D_ARRAY, // 37
GL_UNSIGNED_INT_SAMPLER_2D, // 38
GL_UNSIGNED_INT_SAMPLER_CUBE, // 39
GL_UNSIGNED_INT_SAMPLER_3D, // 40
GL_UNSIGNED_INT_SAMPLER_2D_ARRAY, // 41
};
static sh::GLenum nonSqMatTypes[] = {
GL_FLOAT_MAT2x3,
GL_FLOAT_MAT2x4,
GL_FLOAT_MAT3x2,
GL_FLOAT_MAT3x4,
GL_FLOAT_MAT4x2,
GL_FLOAT_MAT4x3
};
TEST(VariablePacking, Pack) {
VariablePacker packer;
std::vector<sh::ShaderVariable> vars;
const int kMaxRows = 16;
// test no vars.
EXPECT_TRUE(packer.CheckVariablesWithinPackingLimits(kMaxRows, vars));
for (size_t tt = 0; tt < ArraySize(types); ++tt)
{
sh::GLenum type = types[tt];
int num_rows = VariablePacker::GetNumRows(type);
int num_components_per_row = VariablePacker::GetNumComponentsPerRow(type);
// Check 1 of the type.
vars.clear();
vars.push_back(sh::ShaderVariable(type, 0));
EXPECT_TRUE(packer.CheckVariablesWithinPackingLimits(kMaxRows, vars));
// Check exactly the right amount of 1 type as an array.
int num_vars = kMaxRows / num_rows;
vars.clear();
vars.push_back(sh::ShaderVariable(type, num_vars == 1 ? 0 : num_vars));
EXPECT_TRUE(packer.CheckVariablesWithinPackingLimits(kMaxRows, vars));
// test too many
vars.clear();
vars.push_back(sh::ShaderVariable(type, num_vars == 0 ? 0 : (num_vars + 1)));
EXPECT_FALSE(packer.CheckVariablesWithinPackingLimits(kMaxRows, vars));
// Check exactly the right amount of 1 type as individual vars.
num_vars =
kMaxRows / num_rows * ((num_components_per_row > 2) ? 1 : (4 / num_components_per_row));
vars.clear();
for (int ii = 0; ii < num_vars; ++ii)
{
vars.push_back(sh::ShaderVariable(type, 0));
}
EXPECT_TRUE(packer.CheckVariablesWithinPackingLimits(kMaxRows, vars));
// Check 1 too many.
vars.push_back(sh::ShaderVariable(type, 0));
EXPECT_FALSE(packer.CheckVariablesWithinPackingLimits(kMaxRows, vars));
}
// Test example from GLSL ES 3.0 spec chapter 11.
vars.clear();
vars.push_back(sh::ShaderVariable(GL_FLOAT_VEC4, 0));
vars.push_back(sh::ShaderVariable(GL_FLOAT_MAT3, 0));
vars.push_back(sh::ShaderVariable(GL_FLOAT_MAT3, 0));
vars.push_back(sh::ShaderVariable(GL_FLOAT_VEC2, 6));
vars.push_back(sh::ShaderVariable(GL_FLOAT_VEC2, 4));
vars.push_back(sh::ShaderVariable(GL_FLOAT_VEC2, 0));
vars.push_back(sh::ShaderVariable(GL_FLOAT, 3));
vars.push_back(sh::ShaderVariable(GL_FLOAT, 2));
vars.push_back(sh::ShaderVariable(GL_FLOAT, 0));
EXPECT_TRUE(packer.CheckVariablesWithinPackingLimits(kMaxRows, vars));
}
TEST(VariablePacking, PackSizes) {
for (size_t tt = 0; tt < ArraySize(types); ++tt) {
GLenum type = types[tt];
int expectedComponents = gl::VariableComponentCount(type);
int expectedRows = gl::VariableRowCount(type);
if (type == GL_FLOAT_MAT2) {
expectedComponents = 4;
} else if (gl::IsMatrixType(type)) {
int squareSize = std::max(gl::VariableRowCount(type),
gl::VariableColumnCount(type));
expectedComponents = squareSize;
expectedRows = squareSize;
}
EXPECT_EQ(expectedComponents,
VariablePacker::GetNumComponentsPerRow(type));
EXPECT_EQ(expectedRows, VariablePacker::GetNumRows(type));
}
}
// Check special assumptions about packing non-square mats
TEST(VariablePacking, NonSquareMats) {
for (size_t mt = 0; mt < ArraySize(nonSqMatTypes); ++mt) {
GLenum type = nonSqMatTypes[mt];
int rows = gl::VariableRowCount(type);
int cols = gl::VariableColumnCount(type);
int squareSize = std::max(rows, cols);
std::vector<sh::ShaderVariable> vars;
vars.push_back(sh::ShaderVariable(type, 0));
// Fill columns
for (int row = 0; row < squareSize; row++) {
for (int col = squareSize; col < 4; ++col) {
vars.push_back(sh::ShaderVariable(GL_FLOAT, 0));
}
}
VariablePacker packer;
EXPECT_TRUE(packer.CheckVariablesWithinPackingLimits(squareSize, vars));
// and one scalar and packing should fail
vars.push_back(sh::ShaderVariable(GL_FLOAT, 0));
EXPECT_FALSE(packer.CheckVariablesWithinPackingLimits(squareSize, vars));
}
}
// Scalar type variables can be packed sharing rows with other variables.
TEST(VariablePacking, ReuseRows)
{
VariablePacker packer;
std::vector<sh::ShaderVariable> vars;
const int kMaxRows = 512;
// uniform bool u0[129];
// uniform bool u1[129];
// uniform bool u2[129];
// uniform bool u3[129];
{
int num_arrays = 4;
int num_elements_per_array = kMaxRows / num_arrays + 1;
for (int ii = 0; ii < num_arrays; ++ii)
{
vars.push_back(sh::ShaderVariable(GL_BOOL, num_elements_per_array));
}
EXPECT_TRUE(packer.CheckVariablesWithinPackingLimits(kMaxRows, vars));
}
vars.clear();
// uniform vec2 u0[257];
// uniform float u1[257];
// uniform int u1[257];
{
int num_elements_per_array = kMaxRows / 2 + 1;
vars.push_back(sh::ShaderVariable(GL_FLOAT_VEC2, num_elements_per_array));
vars.push_back(sh::ShaderVariable(GL_FLOAT, num_elements_per_array));
vars.push_back(sh::ShaderVariable(GL_INT, num_elements_per_array));
EXPECT_TRUE(packer.CheckVariablesWithinPackingLimits(kMaxRows, vars));
}
}
// Check the packer supports and flattens structures.
TEST(VariablePacking, Struct)
{
VariablePacker packer;
std::vector<sh::ShaderVariable> fields;
const int kMaxRows = 16;
// Test example from GLSL ES 3.0 spec chapter 11, but with structs
std::vector<sh::ShaderVariable> vars;
vars.push_back(sh::ShaderVariable(GL_STRUCT_ANGLEX, 0));
sh::ShaderVariable &parentStruct = vars[0];
parentStruct.fields.push_back(sh::ShaderVariable(GL_FLOAT_VEC4, 0));
parentStruct.fields.push_back(sh::ShaderVariable(GL_FLOAT_MAT3, 0));
parentStruct.fields.push_back(sh::ShaderVariable(GL_STRUCT_ANGLEX, 0));
sh::ShaderVariable &innerStruct = parentStruct.fields.back();
innerStruct.fields.push_back(sh::ShaderVariable(GL_FLOAT_MAT3, 0));
innerStruct.fields.push_back(sh::ShaderVariable(GL_FLOAT_VEC2, 6));
innerStruct.fields.push_back(sh::ShaderVariable(GL_FLOAT_VEC2, 4));
parentStruct.fields.push_back(sh::ShaderVariable(GL_FLOAT_VEC2, 0));
parentStruct.fields.push_back(sh::ShaderVariable(GL_FLOAT, 3));
parentStruct.fields.push_back(sh::ShaderVariable(GL_FLOAT, 2));
parentStruct.fields.push_back(sh::ShaderVariable(GL_FLOAT, 0));
EXPECT_TRUE(packer.CheckVariablesWithinPackingLimits(kMaxRows, vars));
}
|
