e9bc11f712
The eglGetSystemTimeNV extension can be used to enable profiling in PerfHUD ES. When the delta of two calls to eglGetSystemTimeNV equals 0, we now cancels display lists updates. This allows the tool to redraw the same frame several times in a row to run its analysis. For better results profiling should only be attempted after setting viewroot.profile_rendering to true using adb shell setprop. Change-Id: I02e3c237418004cff8d6cb0b9a37126efae44c90
129 lines
4.3 KiB
C++
129 lines
4.3 KiB
C++
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "OpenGLRenderer"
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#include <GLES2/gl2.h>
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#include <GLES2/gl2ext.h>
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <utils/Log.h>
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#include "Debug.h"
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#include "Extensions.h"
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namespace android {
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using namespace uirenderer;
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ANDROID_SINGLETON_STATIC_INSTANCE(Extensions);
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namespace uirenderer {
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///////////////////////////////////////////////////////////////////////////////
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// Defines
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///////////////////////////////////////////////////////////////////////////////
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// Debug
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#if DEBUG_EXTENSIONS
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#define EXT_LOGD(...) ALOGD(__VA_ARGS__)
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#else
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#define EXT_LOGD(...)
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#endif
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///////////////////////////////////////////////////////////////////////////////
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// Constructors
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///////////////////////////////////////////////////////////////////////////////
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Extensions::Extensions(): Singleton<Extensions>() {
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// Query GL extensions
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findExtensions((const char*) glGetString(GL_EXTENSIONS), mGlExtensionList);
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mHasNPot = hasGlExtension("GL_OES_texture_npot");
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mHasFramebufferFetch = hasGlExtension("GL_NV_shader_framebuffer_fetch");
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mHasDiscardFramebuffer = hasGlExtension("GL_EXT_discard_framebuffer");
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mHasDebugMarker = hasGlExtension("GL_EXT_debug_marker");
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mHasDebugLabel = hasGlExtension("GL_EXT_debug_label");
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mHasTiledRendering = hasGlExtension("GL_QCOM_tiled_rendering");
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mHas1BitStencil = hasGlExtension("GL_OES_stencil1");
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mHas4BitStencil = hasGlExtension("GL_OES_stencil4");
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// Query EGL extensions
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findExtensions(eglQueryString(eglGetCurrentDisplay(), EGL_EXTENSIONS), mEglExtensionList);
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mHasNvSystemTime = hasEglExtension("EGL_NV_system_time");
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const char* version = (const char*) glGetString(GL_VERSION);
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// Section 6.1.5 of the OpenGL ES specification indicates the GL version
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// string strictly follows this format:
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//
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// OpenGL<space>ES<space><version number><space><vendor-specific information>
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//
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// In addition section 6.1.5 describes the version number thusly:
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//
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// "The version number is either of the form major number.minor number or
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// major number.minor number.release number, where the numbers all have one
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// or more digits. The release number and vendor specific information are
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// optional."
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if (sscanf(version, "OpenGL ES %d.%d", &mVersionMajor, &mVersionMinor) !=2) {
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// If we cannot parse the version number, assume OpenGL ES 2.0
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mVersionMajor = 2;
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mVersionMinor = 0;
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}
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}
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Extensions::~Extensions() {
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}
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///////////////////////////////////////////////////////////////////////////////
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// Methods
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///////////////////////////////////////////////////////////////////////////////
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bool Extensions::hasGlExtension(const char* extension) const {
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const String8 s(extension);
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return mGlExtensionList.indexOf(s) >= 0;
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}
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bool Extensions::hasEglExtension(const char* extension) const {
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const String8 s(extension);
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return mEglExtensionList.indexOf(s) >= 0;
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}
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void Extensions::findExtensions(const char* extensions, SortedVector<String8>& list) const {
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const char* current = extensions;
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const char* head = current;
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EXT_LOGD("Available extensions:");
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do {
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head = strchr(current, ' ');
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String8 s(current, head ? head - current : strlen(current));
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if (s.length()) {
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list.add(s);
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EXT_LOGD(" %s", s.string());
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}
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current = head + 1;
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} while (head);
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}
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void Extensions::dump() const {
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ALOGD("%s", (const char*) glGetString(GL_VERSION));
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ALOGD("Supported GL extensions:\n%s", (const char*) glGetString(GL_EXTENSIONS));
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ALOGD("Supported EGL extensions:\n%s", eglQueryString(eglGetCurrentDisplay(), EGL_EXTENSIONS));
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}
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}; // namespace uirenderer
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}; // namespace android
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