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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 #include "BenchGpuTimer_gl.h" | 8 #include "GpuTimer.h" |
9 #include "gl/SkGLContextHelper.h" | 9 #include "gl/SkGLContextHelper.h" |
10 #include "gl/GrGLUtil.h" | 10 #include "gl/GrGLUtil.h" |
11 | 11 |
12 BenchGpuTimer::BenchGpuTimer(const SkGLContextHelper* glctx) { | 12 GpuTimer::GpuTimer(const SkGLContextHelper* glctx) { |
13 fContext = glctx; | 13 fContext = glctx; |
14 glctx->ref(); | 14 glctx->ref(); |
15 glctx->makeCurrent(); | 15 glctx->makeCurrent(); |
16 fStarted = false; | 16 fStarted = false; |
17 fSupported = GrGLGetVersion(glctx->gl()) > GR_GL_VER(3,3) || | 17 fSupported = GrGLGetVersion(glctx->gl()) > GR_GL_VER(3,3) || |
18 glctx->hasExtension("GL_ARB_timer_query") || | 18 glctx->hasExtension("GL_ARB_timer_query") || |
19 glctx->hasExtension("GL_EXT_timer_query"); | 19 glctx->hasExtension("GL_EXT_timer_query"); |
20 | 20 |
21 if (fSupported) { | 21 if (fSupported) { |
22 SK_GL(*glctx, GenQueries(1, &fQuery)); | 22 SK_GL(*glctx, GenQueries(1, &fQuery)); |
23 } | 23 } |
24 } | 24 } |
25 | 25 |
26 BenchGpuTimer::~BenchGpuTimer() { | 26 GpuTimer::~GpuTimer() { |
27 if (fSupported) { | 27 if (fSupported) { |
28 fContext->makeCurrent(); | 28 fContext->makeCurrent(); |
29 SK_GL(*fContext, DeleteQueries(1, &fQuery)); | 29 SK_GL(*fContext, DeleteQueries(1, &fQuery)); |
30 } | 30 } |
31 fContext->unref(); | 31 fContext->unref(); |
32 } | 32 } |
33 | 33 |
34 void BenchGpuTimer::startGpu() { | 34 void GpuTimer::start() { |
35 if (fSupported) { | 35 if (fSupported) { |
36 fContext->makeCurrent(); | 36 fContext->makeCurrent(); |
37 fStarted = true; | 37 fStarted = true; |
38 SK_GL(*fContext, BeginQuery(GR_GL_TIME_ELAPSED, fQuery)); | 38 SK_GL(*fContext, BeginQuery(GR_GL_TIME_ELAPSED, fQuery)); |
39 } | 39 } |
40 } | 40 } |
41 | 41 |
42 /** | 42 /** |
43 * It is important to stop the cpu clocks first, | 43 * It is important to stop the cpu clocks first, |
44 * as this will cpu wait for the gpu to finish. | 44 * as this will cpu wait for the gpu to finish. |
45 */ | 45 */ |
46 double BenchGpuTimer::endGpu() { | 46 double GpuTimer::end() { |
47 if (fSupported) { | 47 if (fSupported) { |
48 fStarted = false; | 48 fStarted = false; |
49 fContext->makeCurrent(); | 49 fContext->makeCurrent(); |
50 SK_GL(*fContext, EndQuery(GR_GL_TIME_ELAPSED)); | 50 SK_GL(*fContext, EndQuery(GR_GL_TIME_ELAPSED)); |
51 | 51 |
52 GrGLint available = 0; | 52 GrGLint available = 0; |
53 while (!available) { | 53 while (!available) { |
54 SK_GL_NOERRCHECK(*fContext, GetQueryObjectiv(fQuery, | 54 SK_GL_NOERRCHECK(*fContext, GetQueryObjectiv(fQuery, |
55 GR_GL_QUERY_RESULT_AVAILABLE, | 55 GR_GL_QUERY_RESULT_AVAI
LABLE, |
56 &available)); | 56 &available)); |
57 // If GetQueryObjectiv is erroring out we need some alternative | 57 // If GetQueryObjectiv is erroring out we need some alternative |
58 // means of breaking out of this loop | 58 // means of breaking out of this loop |
59 GrGLenum error; | 59 GrGLenum error; |
60 SK_GL_RET_NOERRCHECK(*fContext, error, GetError()); | 60 SK_GL_RET_NOERRCHECK(*fContext, error, GetError()); |
61 if (GR_GL_NO_ERROR != error) { | 61 if (GR_GL_NO_ERROR != error) { |
62 break; | 62 break; |
63 } | 63 } |
64 } | 64 } |
65 GrGLuint64 totalGPUTimeElapsed = 0; | 65 GrGLuint64 totalGPUTimeElapsed = 0; |
66 SK_GL(*fContext, GetQueryObjectui64v(fQuery, | 66 SK_GL(*fContext, GetQueryObjectui64v(fQuery, |
67 GR_GL_QUERY_RESULT, | 67 GR_GL_QUERY_RESULT, |
68 &totalGPUTimeElapsed)); | 68 &totalGPUTimeElapsed)); |
69 | 69 |
70 return totalGPUTimeElapsed / 1000000.0; | 70 return totalGPUTimeElapsed / 1000000.0; |
71 } else { | 71 } else { |
72 return 0; | 72 return 0; |
73 } | 73 } |
74 } | 74 } |
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