diff options
Diffstat (limited to 'tools/timer/GpuTimer.cpp')
-rw-r--r-- | tools/timer/GpuTimer.cpp | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/tools/timer/GpuTimer.cpp b/tools/timer/GpuTimer.cpp deleted file mode 100644 index 51ab3ad235..0000000000 --- a/tools/timer/GpuTimer.cpp +++ /dev/null @@ -1,77 +0,0 @@ - -/* - * 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 "GpuTimer.h" -#include "gl/SkGLContext.h" -#include "gl/GrGLUtil.h" - -GpuTimer::GpuTimer(const SkGLContext* glctx) : fContext(glctx) { - if (fContext) { - fContext->ref(); - fContext->makeCurrent(); - fStarted = false; - fSupported = GrGLGetVersion(fContext->gl()) > GR_GL_VER(3,3) || - fContext->gl()->hasExtension("GL_ARB_timer_query") || - fContext->gl()->hasExtension("GL_EXT_timer_query"); - - if (fSupported) { - SK_GL(*fContext, GenQueries(1, &fQuery)); - } - } -} - -GpuTimer::~GpuTimer() { - if (fContext) { - if (fSupported) { - fContext->makeCurrent(); - SK_GL(*fContext, DeleteQueries(1, &fQuery)); - } - fContext->unref(); - } -} - -void GpuTimer::start() { - if (fContext && fSupported) { - fContext->makeCurrent(); - fStarted = true; - SK_GL(*fContext, BeginQuery(GR_GL_TIME_ELAPSED, fQuery)); - } -} - -/** - * It is important to stop the cpu clocks first, - * as this will cpu wait for the gpu to finish. - */ -double GpuTimer::end() { - if (fContext && fSupported) { - fStarted = false; - fContext->makeCurrent(); - SK_GL(*fContext, EndQuery(GR_GL_TIME_ELAPSED)); - - GrGLint available = 0; - while (!available) { - SK_GL_NOERRCHECK(*fContext, GetQueryObjectiv(fQuery, - GR_GL_QUERY_RESULT_AVAILABLE, - &available)); - // If GetQueryObjectiv is erroring out we need some alternative - // means of breaking out of this loop - GrGLenum error; - SK_GL_RET_NOERRCHECK(*fContext, error, GetError()); - if (GR_GL_NO_ERROR != error) { - break; - } - } - GrGLuint64 totalGPUTimeElapsed = 0; - SK_GL(*fContext, GetQueryObjectui64v(fQuery, - GR_GL_QUERY_RESULT, - &totalGPUTimeElapsed)); - - return totalGPUTimeElapsed / 1000000.0; - } else { - return 0; - } -} |