Not for review.

ui/gfx/ozone/dri/gbm_surface_factory.cc

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/gfx/ozone/dri/gbm_surface_factory.h"
+
+#include <drm.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <xf86drm.h>
+
+//#include <EGL/egl.h>
+//#include <EGL/eglext.h>
+
+#include "base/files/file_path.h"
+#include "base/message_loop/message_loop.h"
+#include "base/native_library.h"
+#include "third_party/khronos/EGL/egl.h"
+#include "third_party/khronos/EGL/eglext.h"
+#include "third_party/mesa/src/src/gbm/main/gbm.h"
+#include "third_party/skia/include/core/SkBitmapDevice.h"
+#include "third_party/skia/include/core/SkCanvas.h"
+#include "ui/gfx/ozone/dri/dri_wrapper.h"
+#include "ui/gfx/ozone/dri/gbm_surface.h"
+#include "ui/gfx/ozone/dri/hardware_display_controller.h"
+#include "ui/gfx/ozone/dri/scanout_surface.h"
+
+namespace gfx {
+
+namespace {
+
+typedef EGLBoolean (*eglSwapBuffersProc)(EGLDisplay dpy, EGLSurface surface);
+
+static eglSwapBuffersProc g_native_egl_swap_buffers;
+
+EGLBoolean CustomEglSwapBuffers(EGLDisplay dpy, EGLSurface surface) {
+  EGLBoolean ret = g_native_egl_swap_buffers(dpy, surface);
+
+  // TODO(dnicoara) Once we support multiple displays we need to keep a mapping
+  // between |surface| and AcceleratedWidgets such that we can select the
+  // widget based on the |surface|.
+  if (ret)
+    gfx::SurfaceFactoryOzone::GetInstance()->SchedulePageFlip(1);
+
+  return ret;
+}
+
+struct NativeBufferInfo {
+  gfx::Size size;
+  uint32_t fb;
+};
+
+void NativeBufferInfoDestroy(gbm_bo* buffer, void* data) {
+  NativeBufferInfo* bd = static_cast<NativeBufferInfo*>(data);
+  delete bd;
+}
+
+}  // namespace
+
+GbmSurfaceFactory::GbmSurfaceFactory()
+    : DriSurfaceFactory(),
+      device_(NULL) {
+}
+
+GbmSurfaceFactory::~GbmSurfaceFactory() {
+  if (state_ == INITIALIZED)
+    ShutdownHardware();
+}
+
+SurfaceFactoryOzone::HardwareState
+GbmSurfaceFactory::InitializeHardware() {
+  CHECK(state_ == UNINITIALIZED);
+
+  if (DriSurfaceFactory::InitializeHardware() != INITIALIZED)
+    return state_;
+
+  device_ = gbm_create_device(drm_->get_fd());
+
+  if (!device_) {
+    LOG(ERROR) << "Cannot create GBM device";
+    state_ = FAILED;
+    return state_;
+  }
+
+  // TODO(dnicoara) Figure out where this initialization needs to be done.
+  if (!controller_.get())
+    controller_.reset(new HardwareDisplayController());
+
+  state_ = INITIALIZED;
+  return state_;
+}
+
+void GbmSurfaceFactory::ShutdownHardware() {
+  CHECK(state_ == INITIALIZED);
+
+  gbm_device_destroy(device_);
+  DriSurfaceFactory::ShutdownHardware();
+}
+
+intptr_t GbmSurfaceFactory::GetNativeDisplay() {
+  CHECK(state_ == INITIALIZED);
+  return reinterpret_cast<intptr_t>(device_);
+}
+
+const int32* GbmSurfaceFactory::GetEGLSurfaceProperties(
+    const int32* desired_list) {
+  static const int32 kConfigAttribs[] = {
+    EGL_BUFFER_SIZE, 32,
+    EGL_ALPHA_SIZE, 8,
+    EGL_BLUE_SIZE, 8,
+    EGL_GREEN_SIZE, 8,
+    EGL_RED_SIZE, 8,
+    EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
+    EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
+    EGL_NONE
+  };
+
+  return kConfigAttribs;
+}
+
+bool GbmSurfaceFactory::LoadEGLGLES2Bindings(
+      AddGLLibraryCallback add_gl_library,
+      SetGLGetProcAddressProcCallback set_gl_get_proc_address) {
+  std::string error;
+  base::NativeLibrary gles_library = base::LoadNativeLibrary(
+      base::FilePath("libGLESv2.so.2"),
+      &error);
+  if (!gles_library) {
+    LOG(WARNING) << "Failed to load GLES library: " << error;
+    return false;
+  }
+
+  base::NativeLibrary egl_library = base::LoadNativeLibrary(
+      base::FilePath("libEGL.so.1"),
+      &error);
+  if (!egl_library) {
+    LOG(WARNING) << "Failed to load EGL library: " << error;
+    base::UnloadNativeLibrary(gles_library);
+    return false;
+  }
+
+  GLGetProcAddressProc get_proc_address =
+      reinterpret_cast<GLGetProcAddressProc>(
+          base::GetFunctionPointerFromNativeLibrary(
+              egl_library, "eglGetProcAddress"));
+  if (!get_proc_address) {
+    LOG(ERROR) << "eglGetProcAddress not found.";
+    base::UnloadNativeLibrary(egl_library);
+    base::UnloadNativeLibrary(gles_library);
+    return false;
+  }
+
+  set_gl_get_proc_address.Run(get_proc_address);
+  add_gl_library.Run(egl_library);
+  add_gl_library.Run(gles_library);
+
+  return true;
+}
+
+bool GbmSurfaceFactory::AttemptToResizeAcceleratedWidget(
+    gfx::AcceleratedWidget w,
+    const gfx::Rect& bounds) {
+  return false;
+}
+
+bool GbmSurfaceFactory::SchedulePageFlip(gfx::AcceleratedWidget w) {
+  CHECK(state_ == INITIALIZED);
+
+  // TODO(dnicoara) Once we can handle multiple displays this needs to be
+  // changed.
+  CHECK(w == 1);
+
+  static_cast<GbmSurface*>(controller_->get_surface())
+      ->LockCurrentDrawable();
+  return DriSurfaceFactory::SchedulePageFlip(w);
+}
+
+void* GbmSurfaceFactory::GetFunctionPointerFromNativeLibrary(
+    base::NativeLibrary library,
+    const char* name) {
+  void* function = SurfaceFactoryOzone::GetFunctionPointerFromNativeLibrary(
+      library,
+      name);
+
+  if (strcmp(name, "eglSwapBuffers") == 0) {
+    g_native_egl_swap_buffers = reinterpret_cast<eglSwapBuffersProc>(function);
+    function = reinterpret_cast<void*>(CustomEglSwapBuffers);
+  }
+
+  return function;
+}
+
+gfx::AcceleratedWidget GbmSurfaceFactory::CreateNativeBuffer(
+    gfx::Size size,
+    unsigned internalformat) {
+  gbm_bo* bo = gbm_bo_create(device_,
+                             size.width(),
+                             size.height(),
+                             // GBM_BO_FORMAT_XRGB8888,
+                             GBM_FORMAT_ARGB8888,
+                             GBM_BO_USE_SCANOUT |
+                                 // GBM_BO_USE_CURSOR_64X64 |
+                                 GBM_BO_USE_RENDERING |
+                                 // GBM_BO_USE_WRITE |
+                                 0);
+  NativeBufferInfo* info = new NativeBufferInfo;
+  info->size = size;
+  uint32_t bo_handle = gbm_bo_get_handle(bo).u32;
+  uint32_t stride = gbm_bo_get_stride(bo);
+  controller_->AddFramebuffer(24, 32, stride, bo_handle, &info->fb);
+  gbm_bo_set_user_data(bo, info, NativeBufferInfoDestroy);
+
+  return reinterpret_cast<gfx::AcceleratedWidget>(bo);
+}
+
+void GbmSurfaceFactory::SetOverlayPlane(int plane_id,
+                                        gfx::AcceleratedWidget handle,
+                                        const gfx::Rect& bounds) {
+  gbm_bo* bo = reinterpret_cast<gbm_bo*>(handle);
+  NativeBufferInfo* info =
+     static_cast<NativeBufferInfo*>(gbm_bo_get_user_data(bo));
+
+  controller_->SetOverlayPlaneInfo(bounds, info->size, info->fb);
+}
+
+
+void GbmSurfaceFactory::CheckOverlaySupport(SurfaceCandidateList* surfaces) {
+  if ((surfaces->size() == 1 || surfaces->size() == 2) &&
+      (surfaces->at(0).format == RGBA || surfaces->at(0).format == RGBA)) {
+    surfaces->at(0).overlay_handled = true;
+  }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// DriSurfaceFactory private
+
+ScanoutSurface* GbmSurfaceFactory::CreateSurface(
+    HardwareDisplayController* controller) {
+  return new GbmSurface(controller_.get(), device_);
+}
+
+gfx::AcceleratedWidget GbmSurfaceFactory::GetNativeWidget(
+    ScanoutSurface* surface) {
+  return reinterpret_cast<gfx::AcceleratedWidget>(
+      static_cast<GbmSurface*>(surface)->get_native_surface());
+}
+
+}  // namespace gfx