--- /dev/null
+// Copyright 2014 Samsung Electronics. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "gpu/config/gpu_info_collector.h"
+
+#include "base/command_line.h"
+#include "base/debug/trace_event.h"
+#include "base/logging.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/string_piece.h"
+#include "base/strings/string_split.h"
+#include "base/strings/string_util.h"
+#include "ui/gl/gl_implementation.h"
+#include "ui/gl/gl_context.h"
+#include "ui/gl/gl_surface.h"
+#include "ui/gl/gl_surface_egl.h"
+
+#if defined(TIZEN_MULTIMEDIA_SUPPORT)
+#include "content/common/gpu/media/gpu_video_encode_accelerator.h"
+#endif
+
+namespace {
+
+std::string GetDriverVersionFromString(const std::string& version_string) {
+ // Extract driver version from the second number in a string like:
+ // "OpenGL ES 2.0 V@6.0 AU@ (CL@2946718)"
+
+ // Exclude first "2.0".
+ size_t begin = version_string.find_first_of("0123456789");
+ if (begin == std::string::npos)
+ return "0";
+ size_t end = version_string.find_first_not_of("01234567890.", begin);
+
+ // Extract number of the form "%d.%d"
+ begin = version_string.find_first_of("0123456789", end);
+ if (begin == std::string::npos)
+ return "0";
+ end = version_string.find_first_not_of("01234567890.", begin);
+ std::string sub_string;
+ if (end != std::string::npos)
+ sub_string = version_string.substr(begin, end - begin);
+ else
+ sub_string = version_string.substr(begin);
+ std::vector<std::string> pieces;
+ base::SplitString(sub_string, '.', &pieces);
+ if (pieces.size() < 2)
+ return "0";
+ return pieces[0] + "." + pieces[1];
+}
+
+
+class ScopedRestoreNonOwnedEGLContext {
+ public:
+ ScopedRestoreNonOwnedEGLContext();
+ ~ScopedRestoreNonOwnedEGLContext();
+
+ private:
+ EGLContext context_;
+ EGLDisplay display_;
+ EGLSurface draw_surface_;
+ EGLSurface read_surface_;
+};
+
+ScopedRestoreNonOwnedEGLContext::ScopedRestoreNonOwnedEGLContext()
+ : context_(EGL_NO_CONTEXT),
+ display_(EGL_NO_DISPLAY),
+ draw_surface_(EGL_NO_SURFACE),
+ read_surface_(EGL_NO_SURFACE) {
+ // This should only used to restore a context that is not created or owned by
+ // Chromium native code, but created by Android system itself.
+ DCHECK(!gfx::GLContext::GetCurrent());
+
+ context_ = eglGetCurrentContext();
+ display_ = eglGetCurrentDisplay();
+ draw_surface_ = eglGetCurrentSurface(EGL_DRAW);
+ read_surface_ = eglGetCurrentSurface(EGL_READ);
+}
+
+ScopedRestoreNonOwnedEGLContext::~ScopedRestoreNonOwnedEGLContext() {
+ if (context_ == EGL_NO_CONTEXT || display_ == EGL_NO_DISPLAY ||
+ draw_surface_ == EGL_NO_SURFACE || read_surface_ == EGL_NO_SURFACE)
+ return;
+
+ if (!eglMakeCurrent(display_, draw_surface_, read_surface_, context_))
+ LOG(WARNING) << "Failed to restore EGL context";
+}
+
+}
+
+namespace gpu {
+
+CollectInfoResult CollectContextGraphicsInfo(GPUInfo* gpu_info) {
+ return CollectBasicGraphicsInfo(gpu_info);
+}
+
+CollectInfoResult CollectGpuID(uint32* vendor_id, uint32* device_id) {
+ DCHECK(vendor_id && device_id);
+ *vendor_id = 0;
+ *device_id = 0;
+ return kCollectInfoNonFatalFailure;
+}
+
+CollectInfoResult CollectBasicGraphicsInfo(GPUInfo* gpu_info) {
+ DCHECK(gpu_info);
+ gpu_info->can_lose_context = false;
+
+ // Create a short-lived context on the UI thread to collect the GL strings.
+ // Make sure we restore the existing context if there is one.
+ ScopedRestoreNonOwnedEGLContext restore_context;
+ CollectInfoResult result = CollectGraphicsInfoGL(gpu_info);
+ gpu_info->basic_info_state = result;
+ gpu_info->context_info_state = result;
+#if defined(TIZEN_MULTIMEDIA_SUPPORT)
+ gpu_info->video_encode_accelerator_supported_profiles =
+ content::GpuVideoEncodeAccelerator::GetSupportedProfiles();
+#endif
+ return result;
+}
+
+CollectInfoResult CollectDriverInfoGL(GPUInfo* gpu_info) {
+ DCHECK(gpu_info);
+ gpu_info->driver_version = GetDriverVersionFromString(
+ gpu_info->gl_version);
+ gpu_info->gpu.vendor_string = gpu_info->gl_vendor;
+ gpu_info->gpu.device_string = gpu_info->gl_renderer;
+ return kCollectInfoSuccess;
+}
+
+void MergeGPUInfo(GPUInfo* basic_gpu_info,
+ const GPUInfo& context_gpu_info) {
+ MergeGPUInfoGL(basic_gpu_info, context_gpu_info);
+}
+
+} // namespace gpu