skpbench: add option for gpu timing

tools/gpu/gl/GLTestContext.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GLTestContext.h"
+
+#include "GpuTimer.h"
 #include "gl/GrGLUtil.h"
 
 namespace {
 
 class GLFenceSync : public sk_gpu_test::FenceSync {
 public:
     static GLFenceSync* CreateIfSupported(const sk_gpu_test::GLTestContext*);
 
     sk_gpu_test::PlatformFence SK_WARN_UNUSED_RESULT insertFence() const override;
     bool waitFence(sk_gpu_test::PlatformFence fence) const override;
@@ skipping 53 matching lines @@
 bool GLFenceSync::waitFence(sk_gpu_test::PlatformFence fence) const {
     GLsync glsync = reinterpret_cast<GLsync>(fence);
     return GL_WAIT_FAILED != fGLClientWaitSync(glsync, GL_SYNC_FLUSH_COMMANDS_BIT, -1);
 }
 
 void GLFenceSync::deleteFence(sk_gpu_test::PlatformFence fence) const {
     GLsync glsync = reinterpret_cast<GLsync>(fence);
     fGLDeleteSync(glsync);
 }
 
+class GLGpuTimer : public sk_gpu_test::GpuTimer {
+public:
+    static GLGpuTimer* CreateIfSupported(const sk_gpu_test::GLTestContext*);
+
+    QueryStatus checkQueryStatus(sk_gpu_test::PlatformGpuTimerQuery) override;
+    std::chrono::nanoseconds getTimeElapsed(sk_gpu_test::PlatformGpuTimerQuery) override;
+    void deleteQuery(sk_gpu_test::PlatformGpuTimerQuery) override;
+
+private:
+    GLGpuTimer(bool disjointSupport, const sk_gpu_test::GLTestContext*, const char* ext = "");
+
+    bool validate() const;
+
+    sk_gpu_test::PlatformGpuTimerQuery onQueueTimerStart() const override;
+    void onQueueTimerStop(sk_gpu_test::PlatformGpuTimerQuery) const override;
+
+    static constexpr GrGLenum GL_QUERY_RESULT            = 0x8866;
+    static constexpr GrGLenum GL_QUERY_RESULT_AVAILABLE  = 0x8867;
+    static constexpr GrGLenum GL_TIME_ELAPSED            = 0x88bf;
+    static constexpr GrGLenum GL_GPU_DISJOINT            = 0x8fbb;
+
+    typedef void (GR_GL_FUNCTION_TYPE* GLGetIntegervProc) (GrGLenum, GrGLint*);
+    typedef void (GR_GL_FUNCTION_TYPE* GLGenQueriesProc) (GrGLsizei, GrGLuint*);
+    typedef void (GR_GL_FUNCTION_TYPE* GLDeleteQueriesProc) (GrGLsizei, const GrGLuint*);
+    typedef void (GR_GL_FUNCTION_TYPE* GLBeginQueryProc) (GrGLenum, GrGLuint);
+    typedef void (GR_GL_FUNCTION_TYPE* GLEndQueryProc) (GrGLenum);
+    typedef void (GR_GL_FUNCTION_TYPE* GLGetQueryObjectuivProc) (GrGLuint, GrGLenum, GrGLuint*);
+    typedef void (GR_GL_FUNCTION_TYPE* GLGetQueryObjectui64vProc) (GrGLuint, GrGLenum, GrGLuint64*);
+
+    GLGetIntegervProc           fGLGetIntegerv;
+    GLGenQueriesProc            fGLGenQueries;
+    GLDeleteQueriesProc         fGLDeleteQueries;
+    GLBeginQueryProc            fGLBeginQuery;
+    GLEndQueryProc              fGLEndQuery;
+    GLGetQueryObjectuivProc     fGLGetQueryObjectuiv;
+    GLGetQueryObjectui64vProc   fGLGetQueryObjectui64v;
+
+
+    typedef sk_gpu_test::GpuTimer INHERITED;
+};
+
+GLGpuTimer* GLGpuTimer::CreateIfSupported(const sk_gpu_test::GLTestContext* ctx) {
+    SkAutoTDelete<GLGpuTimer> ret;
+    const GrGLInterface* gl = ctx->gl();
+    if (gl->fExtensions.has("GL_EXT_disjoint_timer_query")) {
+        ret.reset(new GLGpuTimer(true, ctx, "EXT"));
+    } else if (kGL_GrGLStandard == gl->fStandard &&
+               (GrGLGetVersion(gl) > GR_GL_VER(3,3) || gl->fExtensions.has("GL_ARB_timer_query"))) {
+        ret.reset(new GLGpuTimer(false, ctx));
+    } else if (gl->fExtensions.has("GL_EXT_timer_query")) {
+        ret.reset(new GLGpuTimer(false, ctx, "EXT"));
+    }
+    return ret && ret->validate() ? ret.release() : nullptr;
+}
+
+GLGpuTimer::GLGpuTimer(bool disjointSupport, const sk_gpu_test::GLTestContext* ctx, const char* ext)
+    : INHERITED(disjointSupport) {
+    ctx->getGLProcAddress(&fGLGetIntegerv, "glGetIntegerv");
+    ctx->getGLProcAddress(&fGLGenQueries, "glGenQueries", ext);
+    ctx->getGLProcAddress(&fGLDeleteQueries, "glDeleteQueries", ext);
+    ctx->getGLProcAddress(&fGLBeginQuery, "glBeginQuery", ext);
+    ctx->getGLProcAddress(&fGLEndQuery, "glEndQuery", ext);
+    ctx->getGLProcAddress(&fGLGetQueryObjectuiv, "glGetQueryObjectuiv", ext);
+    ctx->getGLProcAddress(&fGLGetQueryObjectui64v, "glGetQueryObjectui64v", ext);
+}
+
+bool GLGpuTimer::validate() const {
+    return fGLGetIntegerv && fGLGenQueries && fGLDeleteQueries && fGLBeginQuery && fGLEndQuery &&
+           fGLGetQueryObjectuiv && fGLGetQueryObjectui64v;
+}
+
+sk_gpu_test::PlatformGpuTimerQuery GLGpuTimer::onQueueTimerStart() const {
+    GrGLuint queryID;
+    fGLGenQueries(1, &queryID);
+    if (!queryID) {
+        return sk_gpu_test::kInvalidGpuTimerQuery;
+    }
+    if (this->disjointSupport()) {
+        // Clear the disjoint flag.
+        GrGLint disjoint;
+        fGLGetIntegerv(GL_GPU_DISJOINT, &disjoint);
+    }
+    fGLBeginQuery(GL_TIME_ELAPSED, queryID);
+    return static_cast<sk_gpu_test::PlatformGpuTimerQuery>(queryID);
+}
+
+void GLGpuTimer::onQueueTimerStop(sk_gpu_test::PlatformGpuTimerQuery platformTimer) const {
+    if (sk_gpu_test::kInvalidGpuTimerQuery == platformTimer) {
+        return;
+    }
+    fGLEndQuery(GL_TIME_ELAPSED);
+}
+
+sk_gpu_test::GpuTimer::QueryStatus
+GLGpuTimer::checkQueryStatus(sk_gpu_test::PlatformGpuTimerQuery platformTimer) {
+    const GrGLuint queryID = static_cast<GrGLuint>(platformTimer);
+    if (!queryID) {
+        return QueryStatus::kInvalid;
+    }
+    GrGLuint available = 0;
+    fGLGetQueryObjectuiv(queryID, GL_QUERY_RESULT_AVAILABLE, &available);
+    if (!available) {
+        return QueryStatus::kPending;
+    }
+    if (this->disjointSupport()) {
+        GrGLint disjoint = 1;
+        fGLGetIntegerv(GL_GPU_DISJOINT, &disjoint);
+        if (disjoint) {
+            return QueryStatus::kDisjoint;
+        }
+    }
+    return QueryStatus::kAccurate;
+}
+
+std::chrono::nanoseconds
+GLGpuTimer::getTimeElapsed(sk_gpu_test::PlatformGpuTimerQuery platformTimer) {
+    SkASSERT(this->checkQueryStatus(platformTimer) >= QueryStatus::kDisjoint);
+    const GrGLuint queryID = static_cast<GrGLuint>(platformTimer);
+    GrGLuint64 nanoseconds;
+    fGLGetQueryObjectui64v(queryID, GL_QUERY_RESULT, &nanoseconds);
+    return std::chrono::nanoseconds(nanoseconds);
+}
+
+void GLGpuTimer::deleteQuery(sk_gpu_test::PlatformGpuTimerQuery platformTimer) {
+    const GrGLuint queryID = static_cast<GrGLuint>(platformTimer);
+    fGLDeleteQueries(1, &queryID);
+}
+
 }  // anonymous namespace
 
 namespace sk_gpu_test {
 
 GLTestContext::GLTestContext() : TestContext() {}
 
 GLTestContext::~GLTestContext() {
     SkASSERT(nullptr == fGL.get());
 }
 
 void GLTestContext::init(const GrGLInterface* gl, FenceSync* fenceSync) {
     SkASSERT(!fGL.get());
     fGL.reset(gl);
     fFenceSync = fenceSync ? fenceSync : GLFenceSync::CreateIfSupported(this);
+    fGpuTimer = GLGpuTimer::CreateIfSupported(this);
 }
 
 void GLTestContext::teardown() {
     fGL.reset(nullptr);
     INHERITED::teardown();
 }
 
 void GLTestContext::testAbandon() {
     INHERITED::testAbandon();
     if (fGL) {
@@ skipping 34 matching lines @@
                                   GR_GL_NEAREST));
     GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_WRAP_S,
                                   GR_GL_CLAMP_TO_EDGE));    
     GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_WRAP_T,
                                   GR_GL_CLAMP_TO_EDGE));
     GR_GL_CALL(fGL, TexImage2D(GR_GL_TEXTURE_RECTANGLE, 0, internalFormat, width, height, 0,
                                externalFormat, externalType, data));
     return id;
 }
 }  // namespace sk_gpu_test