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
|
/*
* Copyright © 2012 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
/**
* \file pause-counting.c
* Verify behavior of XFB "counting" queries when pause and resume are used.
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.window_visual = PIGLIT_GL_VISUAL_RGB;
PIGLIT_GL_TEST_CONFIG_END
enum piglit_result
piglit_display(void)
{
return PIGLIT_FAIL;
}
static const float data[] = {
-1.0, -1.0,
1.0, -1.0,
1.0, 1.0,
-1.0, 1.0,
};
static const char vstext[] =
"varying vec4 x; void main() { gl_Position = gl_Vertex; x = vec4(0); }";
void piglit_init(int argc, char **argv)
{
static const char *varyings[] = {"x"};
GLuint id;
GLuint buffers[2];
GLuint prog;
GLuint vs;
GLuint queries[2];
bool pass = true;
GLuint generated;
GLuint written;
piglit_require_transform_feedback();
piglit_require_GLSL();
piglit_require_extension("GL_ARB_transform_feedback2");
/* This is all just the boot-strap work for the test.
*/
glGenBuffers(2, buffers);
glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, buffers[0]);
glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER, 1024, NULL, GL_STREAM_READ);
glBindBuffer(GL_ARRAY_BUFFER, buffers[1]);
glBufferData(GL_ARRAY_BUFFER, sizeof(data), data, GL_STATIC_DRAW);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(GLfloat), 0);
glEnableVertexAttribArray(0);
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstext);
prog = glCreateProgram();
glAttachShader(prog, vs);
glTransformFeedbackVaryings(prog, 1, varyings, GL_INTERLEAVED_ATTRIBS);
glLinkProgram(prog);
if (!piglit_link_check_status(prog)) {
pass = false;
goto done;
}
glUseProgram(prog);
glGenTransformFeedbacks(1, &id);
glBindTransformFeedback(GL_TRANSFORM_FEEDBACK, id);
glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0, buffers[0]);
glGenQueries(2, queries);
/* Here's the actual test. Start both kinds of query. Pause and
* resume transform feedback around some of the drawing. This should
* cause GL_PRIMITIVES_GENERATED to be larger than
* GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN.
*/
glEnable(GL_RASTERIZER_DISCARD);
glBeginQuery(GL_PRIMITIVES_GENERATED, queries[0]);
glBeginQuery(GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN, queries[1]);
glBeginTransformFeedback(GL_TRIANGLES);
glDrawArrays(GL_TRIANGLES, 0, 4);
glPauseTransformFeedback();
glDrawArrays(GL_TRIANGLES, 0, 4);
glResumeTransformFeedback();
glDrawArrays(GL_TRIANGLES, 0, 4);
glEndTransformFeedback();
glEndQuery(GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN);
glEndQuery(GL_PRIMITIVES_GENERATED);
glGetQueryObjectuiv(queries[0], GL_QUERY_RESULT, &generated);
glGetQueryObjectuiv(queries[1], GL_QUERY_RESULT, &written);
if (generated != 3) {
fprintf(stderr,
"GL_PRIMITIVES_GENERATED: "
"Expected %d, got %d\n",
3, generated);
pass = false;
}
if (written != 2) {
fprintf(stderr,
"GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN: "
"Expected %d, got %d\n",
2, written);
pass = false;
}
glBindTransformFeedback(GL_TRANSFORM_FEEDBACK, 0);
done:
glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, 0);
glDeleteBuffers(2, buffers);
glDeleteQueries(2, queries);
glDeleteTransformFeedbacks(1, &id);
glUseProgram(0);
glDeleteShader(vs);
glDeleteProgram(prog);
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
|
