summaryrefslogtreecommitdiffstats
path: root/gfx/angle/src/tests/gl_tests/TimerQueriesTest.cpp
blob: 8f3725ec022d9f83de009d4afa47d24e2340fbe4 (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
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
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
//
// Copyright 2016 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.
//
// TimerQueriesTest.cpp
//   Various tests for EXT_disjoint_timer_query functionality and validation
//

#include "system_utils.h"
#include "test_utils/ANGLETest.h"
#include "random_utils.h"

using namespace angle;

class TimerQueriesTest : public ANGLETest
{
  protected:
    TimerQueriesTest() : mProgram(0), mProgramCostly(0)
    {
        setWindowWidth(128);
        setWindowHeight(128);
        setConfigRedBits(8);
        setConfigGreenBits(8);
        setConfigBlueBits(8);
        setConfigAlphaBits(8);
        setConfigDepthBits(24);
    }

    virtual void SetUp()
    {
        ANGLETest::SetUp();

        const std::string passthroughVS =
            "attribute highp vec4 position; void main(void)\n"
            "{\n"
            "    gl_Position = position;\n"
            "}\n";

        const std::string passthroughPS =
            "precision highp float; void main(void)\n"
            "{\n"
            "    gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0);\n"
            "}\n";

        const std::string costlyVS =
            "attribute highp vec4 position; varying highp vec4 testPos; void main(void)\n"
            "{\n"
            "    testPos     = position;\n"
            "    gl_Position = position;\n"
            "}\n";

        const std::string costlyPS =
            "precision highp float; varying highp vec4 testPos; void main(void)\n"
            "{\n"
            "    vec4 test = testPos;\n"
            "    for (int i = 0; i < 500; i++)\n"
            "    {\n"
            "        test = sqrt(test);\n"
            "    }\n"
            "    gl_FragColor = test;\n"
            "}\n";

        mProgram = CompileProgram(passthroughVS, passthroughPS);
        ASSERT_NE(0u, mProgram) << "shader compilation failed.";

        mProgramCostly = CompileProgram(costlyVS, costlyPS);
        ASSERT_NE(0u, mProgramCostly) << "shader compilation failed.";
    }

    virtual void TearDown()
    {
        glDeleteProgram(mProgram);
        glDeleteProgram(mProgramCostly);
        ANGLETest::TearDown();
    }

    GLuint mProgram;
    GLuint mProgramCostly;
};

// Test that all proc addresses are loadable
TEST_P(TimerQueriesTest, ProcAddresses)
{
    if (!extensionEnabled("GL_EXT_disjoint_timer_query"))
    {
        std::cout << "Test skipped because GL_EXT_disjoint_timer_query is not available."
                  << std::endl;
        return;
    }

    ASSERT_NE(nullptr, eglGetProcAddress("glGenQueriesEXT"));
    ASSERT_NE(nullptr, eglGetProcAddress("glDeleteQueriesEXT"));
    ASSERT_NE(nullptr, eglGetProcAddress("glIsQueryEXT"));
    ASSERT_NE(nullptr, eglGetProcAddress("glBeginQueryEXT"));
    ASSERT_NE(nullptr, eglGetProcAddress("glEndQueryEXT"));
    ASSERT_NE(nullptr, eglGetProcAddress("glQueryCounterEXT"));
    ASSERT_NE(nullptr, eglGetProcAddress("glGetQueryivEXT"));
    ASSERT_NE(nullptr, eglGetProcAddress("glGetQueryObjectivEXT"));
    ASSERT_NE(nullptr, eglGetProcAddress("glGetQueryObjectuivEXT"));
    ASSERT_NE(nullptr, eglGetProcAddress("glGetQueryObjecti64vEXT"));
    ASSERT_NE(nullptr, eglGetProcAddress("glGetQueryObjectui64vEXT"));
}

// Tests the time elapsed query
TEST_P(TimerQueriesTest, TimeElapsed)
{
    if (!extensionEnabled("GL_EXT_disjoint_timer_query"))
    {
        std::cout << "Test skipped because GL_EXT_disjoint_timer_query is not available."
                  << std::endl;
        return;
    }

    GLint queryTimeElapsedBits = 0;
    glGetQueryivEXT(GL_TIME_ELAPSED_EXT, GL_QUERY_COUNTER_BITS_EXT, &queryTimeElapsedBits);
    ASSERT_GL_NO_ERROR();

    std::cout << "Time elapsed counter bits: " << queryTimeElapsedBits << std::endl;

    // Skip test if the number of bits is 0
    if (queryTimeElapsedBits == 0)
    {
        std::cout << "Test skipped because of 0 counter bits" << std::endl;
        return;
    }

    glDepthMask(GL_TRUE);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);

    GLuint query1 = 0;
    GLuint query2 = 0;
    glGenQueriesEXT(1, &query1);
    glGenQueriesEXT(1, &query2);

    // Test time elapsed for a single quad
    glBeginQueryEXT(GL_TIME_ELAPSED_EXT, query1);
    drawQuad(mProgram, "position", 0.8f);
    glEndQueryEXT(GL_TIME_ELAPSED_EXT);
    ASSERT_GL_NO_ERROR();

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);

    // Test time elapsed for costly quad
    glBeginQueryEXT(GL_TIME_ELAPSED_EXT, query2);
    drawQuad(mProgramCostly, "position", 0.8f);
    glEndQueryEXT(GL_TIME_ELAPSED_EXT);
    ASSERT_GL_NO_ERROR();

    swapBuffers();

    int timeout  = 200000;
    GLuint ready = GL_FALSE;
    while (ready == GL_FALSE && timeout > 0)
    {
        angle::Sleep(0);
        glGetQueryObjectuivEXT(query1, GL_QUERY_RESULT_AVAILABLE_EXT, &ready);
        timeout--;
    }
    ready = GL_FALSE;
    while (ready == GL_FALSE && timeout > 0)
    {
        angle::Sleep(0);
        glGetQueryObjectuivEXT(query2, GL_QUERY_RESULT_AVAILABLE_EXT, &ready);
        timeout--;
    }
    ASSERT_LT(0, timeout) << "Query result available timed out" << std::endl;

    GLuint64 result1 = 0;
    GLuint64 result2 = 0;
    glGetQueryObjectui64vEXT(query1, GL_QUERY_RESULT_EXT, &result1);
    glGetQueryObjectui64vEXT(query2, GL_QUERY_RESULT_EXT, &result2);
    ASSERT_GL_NO_ERROR();

    glDeleteQueriesEXT(1, &query1);
    glDeleteQueriesEXT(1, &query2);
    ASSERT_GL_NO_ERROR();

    std::cout << "Elapsed time: " << result1 << " cheap quad" << std::endl;
    std::cout << "Elapsed time: " << result2 << " costly quad" << std::endl;

    // The time elapsed should be nonzero
    EXPECT_LT(0ul, result1);
    EXPECT_LT(0ul, result2);

    // The costly quad should take longer than the cheap quad
    EXPECT_LT(result1, result2);
}

// Tests time elapsed for a non draw call (texture upload)
TEST_P(TimerQueriesTest, TimeElapsedTextureTest)
{
    // OSX drivers don't seem to properly time non-draw calls so we skip the test on Mac
    if (IsOSX())
    {
        std::cout << "Test skipped on OSX" << std::endl;
        return;
    }

    if (!extensionEnabled("GL_EXT_disjoint_timer_query"))
    {
        std::cout << "Test skipped because GL_EXT_disjoint_timer_query is not available."
                  << std::endl;
        return;
    }

    GLint queryTimeElapsedBits = 0;
    glGetQueryivEXT(GL_TIME_ELAPSED_EXT, GL_QUERY_COUNTER_BITS_EXT, &queryTimeElapsedBits);
    ASSERT_GL_NO_ERROR();

    std::cout << "Time elapsed counter bits: " << queryTimeElapsedBits << std::endl;

    // Skip test if the number of bits is 0
    if (queryTimeElapsedBits == 0)
    {
        std::cout << "Test skipped because of 0 counter bits" << std::endl;
        return;
    }

    GLubyte pixels[] = {0, 0, 0, 255, 255, 255, 255, 255, 255, 0, 0, 0};

    // Query and texture initialization
    GLuint texture;
    GLuint query = 0;
    glGenQueriesEXT(1, &query);
    glGenTextures(1, &texture);

    // Upload a texture inside the query
    glBeginQueryEXT(GL_TIME_ELAPSED_EXT, query);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
    glBindTexture(GL_TEXTURE_2D, texture);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, GL_RGB, GL_UNSIGNED_BYTE, pixels);
    glGenerateMipmap(GL_TEXTURE_2D);
    glFinish();
    glEndQueryEXT(GL_TIME_ELAPSED_EXT);
    ASSERT_GL_NO_ERROR();

    int timeout  = 200000;
    GLuint ready = GL_FALSE;
    while (ready == GL_FALSE && timeout > 0)
    {
        angle::Sleep(0);
        glGetQueryObjectuivEXT(query, GL_QUERY_RESULT_AVAILABLE_EXT, &ready);
        timeout--;
    }
    ASSERT_LT(0, timeout) << "Query result available timed out" << std::endl;

    GLuint64 result = 0;
    glGetQueryObjectui64vEXT(query, GL_QUERY_RESULT_EXT, &result);
    ASSERT_GL_NO_ERROR();

    glDeleteTextures(1, &texture);
    glDeleteQueriesEXT(1, &query);

    std::cout << "Elapsed time: " << result << std::endl;
    EXPECT_LT(0ul, result);
}

// Tests validation of query functions with respect to elapsed time query
TEST_P(TimerQueriesTest, TimeElapsedValidationTest)
{
    if (!extensionEnabled("GL_EXT_disjoint_timer_query"))
    {
        std::cout << "Test skipped because GL_EXT_disjoint_timer_query is not available."
                  << std::endl;
        return;
    }

    GLint queryTimeElapsedBits = 0;
    glGetQueryivEXT(GL_TIME_ELAPSED_EXT, GL_QUERY_COUNTER_BITS_EXT, &queryTimeElapsedBits);
    ASSERT_GL_NO_ERROR();

    std::cout << "Time elapsed counter bits: " << queryTimeElapsedBits << std::endl;

    // Skip test if the number of bits is 0
    if (queryTimeElapsedBits == 0)
    {
        std::cout << "Test skipped because of 0 counter bits" << std::endl;
        return;
    }

    GLuint query = 0;
    glGenQueriesEXT(-1, &query);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);

    glGenQueriesEXT(1, &query);
    EXPECT_GL_NO_ERROR();

    glBeginQueryEXT(GL_TIMESTAMP_EXT, query);
    EXPECT_GL_ERROR(GL_INVALID_ENUM);

    glBeginQueryEXT(GL_TIME_ELAPSED_EXT, 0);
    EXPECT_GL_ERROR(GL_INVALID_OPERATION);

    glEndQueryEXT(GL_TIME_ELAPSED_EXT);
    EXPECT_GL_ERROR(GL_INVALID_OPERATION);

    glBeginQueryEXT(GL_TIME_ELAPSED_EXT, query);
    EXPECT_GL_NO_ERROR();

    glBeginQueryEXT(GL_TIME_ELAPSED_EXT, query);
    EXPECT_GL_ERROR(GL_INVALID_OPERATION);

    glEndQueryEXT(GL_TIME_ELAPSED_EXT);
    EXPECT_GL_NO_ERROR();

    glEndQueryEXT(GL_TIME_ELAPSED_EXT);
    EXPECT_GL_ERROR(GL_INVALID_OPERATION);
}

// Tests timer queries operating under multiple EGL contexts with mid-query switching
TEST_P(TimerQueriesTest, TimeElapsedMulticontextTest)
{
    if (IsAMD() && IsOpenGL() && IsWindows() && IsDebug())
    {
        // TODO(jmadill): Figure out why this test is flaky on Win/AMD/OpenGL/Debug.
        std::cout << "Test skipped on Windows AMD OpenGL Debug." << std::endl;
        return;
    }

    if (!extensionEnabled("GL_EXT_disjoint_timer_query"))
    {
        std::cout << "Test skipped because GL_EXT_disjoint_timer_query is not available."
                  << std::endl;
        return;
    }

    GLint queryTimeElapsedBits = 0;
    glGetQueryivEXT(GL_TIME_ELAPSED_EXT, GL_QUERY_COUNTER_BITS_EXT, &queryTimeElapsedBits);
    ASSERT_GL_NO_ERROR();

    std::cout << "Time elapsed counter bits: " << queryTimeElapsedBits << std::endl;

    // Skip test if the number of bits is 0
    if (queryTimeElapsedBits == 0)
    {
        std::cout << "Test skipped because of 0 counter bits" << std::endl;
        return;
    }

    // Without a glClear, the first draw call on GL takes a huge amount of time when run after the
    // D3D test on certain NVIDIA drivers
    glDepthMask(GL_TRUE);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);

    EGLint contextAttributes[] = {
        EGL_CONTEXT_MAJOR_VERSION_KHR,
        GetParam().majorVersion,
        EGL_CONTEXT_MINOR_VERSION_KHR,
        GetParam().minorVersion,
        EGL_NONE,
    };

    EGLWindow *window = getEGLWindow();

    EGLDisplay display = window->getDisplay();
    EGLConfig config   = window->getConfig();
    EGLSurface surface = window->getSurface();

    struct ContextInfo
    {
        EGLContext context;
        GLuint program;
        GLuint query;
        EGLDisplay display;

        ContextInfo() : context(EGL_NO_CONTEXT), program(0), query(0), display(EGL_NO_DISPLAY) {}

        ~ContextInfo()
        {
            if (context != EGL_NO_CONTEXT && display != EGL_NO_DISPLAY)
            {
                eglDestroyContext(display, context);
            }
        }
    };
    ContextInfo contexts[2];

    // Shaders
    const std::string cheapVS =
        "attribute highp vec4 position; void main(void)\n"
        "{\n"
        "    gl_Position = position;\n"
        "}\n";

    const std::string cheapPS =
        "precision highp float; void main(void)\n"
        "{\n"
        "    gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0);\n"
        "}\n";

    const std::string costlyVS =
        "attribute highp vec4 position; varying highp vec4 testPos; void main(void)\n"
        "{\n"
        "    testPos     = position;\n"
        "    gl_Position = position;\n"
        "}\n";

    const std::string costlyPS =
        "precision highp float; varying highp vec4 testPos; void main(void)\n"
        "{\n"
        "    vec4 test = testPos;\n"
        "    for (int i = 0; i < 500; i++)\n"
        "    {\n"
        "        test = sqrt(test);\n"
        "    }\n"
        "    gl_FragColor = test;\n"
        "}\n";

    // Setup the first context with a cheap shader
    contexts[0].context = eglCreateContext(display, config, EGL_NO_CONTEXT, contextAttributes);
    contexts[0].display = display;
    ASSERT_NE(contexts[0].context, EGL_NO_CONTEXT);
    eglMakeCurrent(display, surface, surface, contexts[0].context);
    contexts[0].program = CompileProgram(cheapVS, cheapPS);
    glGenQueriesEXT(1, &contexts[0].query);
    ASSERT_GL_NO_ERROR();

    // Setup the second context with an expensive shader
    contexts[1].context = eglCreateContext(display, config, EGL_NO_CONTEXT, contextAttributes);
    contexts[1].display = display;
    ASSERT_NE(contexts[1].context, EGL_NO_CONTEXT);
    eglMakeCurrent(display, surface, surface, contexts[1].context);
    contexts[1].program = CompileProgram(costlyVS, costlyPS);
    glGenQueriesEXT(1, &contexts[1].query);
    ASSERT_GL_NO_ERROR();

    // Start the query and draw a quad on the first context without ending the query
    eglMakeCurrent(display, surface, surface, contexts[0].context);
    glBeginQueryEXT(GL_TIME_ELAPSED_EXT, contexts[0].query);
    drawQuad(contexts[0].program, "position", 0.8f);
    ASSERT_GL_NO_ERROR();

    // Switch contexts, draw the expensive quad and end its query
    eglMakeCurrent(display, surface, surface, contexts[1].context);
    glBeginQueryEXT(GL_TIME_ELAPSED_EXT, contexts[1].query);
    drawQuad(contexts[1].program, "position", 0.8f);
    glEndQueryEXT(GL_TIME_ELAPSED_EXT);
    ASSERT_GL_NO_ERROR();

    // Go back to the first context, end its query, and get the result
    eglMakeCurrent(display, surface, surface, contexts[0].context);
    glEndQueryEXT(GL_TIME_ELAPSED_EXT);

    GLuint64 result1 = 0;
    GLuint64 result2 = 0;
    glGetQueryObjectui64vEXT(contexts[0].query, GL_QUERY_RESULT_EXT, &result1);
    glDeleteQueriesEXT(1, &contexts[0].query);
    glDeleteProgram(contexts[0].program);
    ASSERT_GL_NO_ERROR();

    // Get the 2nd context's results
    eglMakeCurrent(display, surface, surface, contexts[1].context);
    glGetQueryObjectui64vEXT(contexts[1].query, GL_QUERY_RESULT_EXT, &result2);
    glDeleteQueriesEXT(1, &contexts[1].query);
    glDeleteProgram(contexts[1].program);
    ASSERT_GL_NO_ERROR();

    // Switch back to main context
    eglMakeCurrent(display, surface, surface, window->getContext());

    // Compare the results. The cheap quad should be smaller than the expensive one if
    // virtualization is working correctly
    std::cout << "Elapsed time: " << result1 << " cheap quad" << std::endl;
    std::cout << "Elapsed time: " << result2 << " costly quad" << std::endl;
    EXPECT_LT(0ul, result1);
    EXPECT_LT(0ul, result2);
    EXPECT_LT(result1, result2);
}

// Tests GPU timestamp functionality
TEST_P(TimerQueriesTest, Timestamp)
{
    if (!extensionEnabled("GL_EXT_disjoint_timer_query"))
    {
        std::cout << "Test skipped because GL_EXT_disjoint_timer_query is not available."
                  << std::endl;
        return;
    }

    GLint queryTimestampBits = 0;
    glGetQueryivEXT(GL_TIMESTAMP_EXT, GL_QUERY_COUNTER_BITS_EXT, &queryTimestampBits);
    ASSERT_GL_NO_ERROR();

    std::cout << "Timestamp counter bits: " << queryTimestampBits << std::endl;

    // Macs for some reason return 0 bits so skip the test for now if either are 0
    if (queryTimestampBits == 0)
    {
        std::cout << "Test skipped because of 0 counter bits" << std::endl;
        return;
    }

    glDepthMask(GL_TRUE);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);

    GLuint query1 = 0;
    GLuint query2 = 0;
    glGenQueriesEXT(1, &query1);
    glGenQueriesEXT(1, &query2);
    glQueryCounterEXT(query1, GL_TIMESTAMP_EXT);
    drawQuad(mProgram, "position", 0.8f);
    glQueryCounterEXT(query2, GL_TIMESTAMP_EXT);

    ASSERT_GL_NO_ERROR();

    swapBuffers();

    int timeout  = 200000;
    GLuint ready = GL_FALSE;
    while (ready == GL_FALSE && timeout > 0)
    {
        angle::Sleep(0);
        glGetQueryObjectuivEXT(query1, GL_QUERY_RESULT_AVAILABLE_EXT, &ready);
        timeout--;
    }
    ready = GL_FALSE;
    while (ready == GL_FALSE && timeout > 0)
    {
        angle::Sleep(0);
        glGetQueryObjectuivEXT(query2, GL_QUERY_RESULT_AVAILABLE_EXT, &ready);
        timeout--;
    }
    ASSERT_LT(0, timeout) << "Query result available timed out" << std::endl;

    GLuint64 result1 = 0;
    GLuint64 result2 = 0;
    glGetQueryObjectui64vEXT(query1, GL_QUERY_RESULT_EXT, &result1);
    glGetQueryObjectui64vEXT(query2, GL_QUERY_RESULT_EXT, &result2);

    ASSERT_GL_NO_ERROR();

    glDeleteQueriesEXT(1, &query1);
    glDeleteQueriesEXT(1, &query2);

    std::cout << "Timestamps: " << result1 << " " << result2 << std::endl;
    EXPECT_LT(0ul, result1);
    EXPECT_LT(0ul, result2);
    EXPECT_LT(result1, result2);
}

class TimerQueriesTestES3 : public TimerQueriesTest
{
};

// Tests getting timestamps via glGetInteger64v
TEST_P(TimerQueriesTestES3, TimestampGetInteger64)
{
    if (!extensionEnabled("GL_EXT_disjoint_timer_query"))
    {
        std::cout << "Test skipped because GL_EXT_disjoint_timer_query is not available."
                  << std::endl;
        return;
    }

    GLint queryTimestampBits = 0;
    glGetQueryivEXT(GL_TIMESTAMP_EXT, GL_QUERY_COUNTER_BITS_EXT, &queryTimestampBits);
    ASSERT_GL_NO_ERROR();

    std::cout << "Timestamp counter bits: " << queryTimestampBits << std::endl;

    if (queryTimestampBits == 0)
    {
        std::cout << "Test skipped because of 0 counter bits" << std::endl;
        return;
    }

    glDepthMask(GL_TRUE);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);

    GLint64 result1 = 0;
    GLint64 result2 = 0;
    glGetInteger64v(GL_TIMESTAMP_EXT, &result1);
    drawQuad(mProgram, "position", 0.8f);
    glGetInteger64v(GL_TIMESTAMP_EXT, &result2);
    ASSERT_GL_NO_ERROR();
    std::cout << "Timestamps (getInteger64v): " << result1 << " " << result2 << std::endl;
    EXPECT_LT(0l, result1);
    EXPECT_LT(0l, result2);
    EXPECT_LT(result1, result2);
}

ANGLE_INSTANTIATE_TEST(TimerQueriesTest,
                       ES2_D3D9(),
                       ES2_D3D11(),
                       ES3_D3D11(),
                       ES2_OPENGL(),
                       ES3_OPENGL());

ANGLE_INSTANTIATE_TEST(TimerQueriesTestES3, ES3_D3D11(), ES3_OPENGL());