1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "ui/gfx/android/shared_device_display_info.h" 6 7 #include "base/android/jni_android.h" 8 #include "base/android/jni_string.h" 9 #include "base/logging.h" 10 #include "jni/DeviceDisplayInfo_jni.h" 11 12 namespace gfx { 13 14 // static JNI call 15 static void UpdateSharedDeviceDisplayInfo(JNIEnv* env, 16 jobject obj, 17 jint display_height, 18 jint display_width, 19 jint physical_display_height, 20 jint physical_display_width, 21 jint bits_per_pixel, 22 jint bits_per_component, 23 jdouble dip_scale, 24 jint smallest_dip_width, 25 jint rotation_degrees) { 26 SharedDeviceDisplayInfo::GetInstance()->InvokeUpdate(env, obj, 27 display_height, display_width, 28 physical_display_height, physical_display_width, 29 bits_per_pixel, bits_per_component, 30 dip_scale, smallest_dip_width, rotation_degrees); 31 } 32 33 // static 34 SharedDeviceDisplayInfo* SharedDeviceDisplayInfo::GetInstance() { 35 return Singleton<SharedDeviceDisplayInfo>::get(); 36 } 37 38 int SharedDeviceDisplayInfo::GetDisplayHeight() { 39 base::AutoLock autolock(lock_); 40 DCHECK_NE(0, display_height_); 41 return display_height_; 42 } 43 44 int SharedDeviceDisplayInfo::GetDisplayWidth() { 45 base::AutoLock autolock(lock_); 46 DCHECK_NE(0, display_width_); 47 return display_width_; 48 } 49 50 int SharedDeviceDisplayInfo::GetPhysicalDisplayHeight() { 51 base::AutoLock autolock(lock_); 52 return physical_display_height_; 53 } 54 55 int SharedDeviceDisplayInfo::GetPhysicalDisplayWidth() { 56 base::AutoLock autolock(lock_); 57 return physical_display_width_; 58 } 59 60 int SharedDeviceDisplayInfo::GetBitsPerPixel() { 61 base::AutoLock autolock(lock_); 62 DCHECK_NE(0, bits_per_pixel_); 63 return bits_per_pixel_; 64 } 65 66 int SharedDeviceDisplayInfo::GetBitsPerComponent() { 67 base::AutoLock autolock(lock_); 68 DCHECK_NE(0, bits_per_component_); 69 return bits_per_component_; 70 } 71 72 double SharedDeviceDisplayInfo::GetDIPScale() { 73 base::AutoLock autolock(lock_); 74 DCHECK_NE(0, dip_scale_); 75 return dip_scale_; 76 } 77 78 int SharedDeviceDisplayInfo::GetSmallestDIPWidth() { 79 base::AutoLock autolock(lock_); 80 DCHECK_NE(0, smallest_dip_width_); 81 return smallest_dip_width_; 82 } 83 84 int SharedDeviceDisplayInfo::GetRotationDegrees() { 85 base::AutoLock autolock(lock_); 86 return rotation_degrees_; 87 } 88 89 // static 90 bool SharedDeviceDisplayInfo::RegisterSharedDeviceDisplayInfo(JNIEnv* env) { 91 return RegisterNativesImpl(env); 92 } 93 94 void SharedDeviceDisplayInfo::InvokeUpdate(JNIEnv* env, 95 jobject obj, 96 jint display_height, 97 jint display_width, 98 jint physical_display_height, 99 jint physical_display_width, 100 jint bits_per_pixel, 101 jint bits_per_component, 102 jdouble dip_scale, 103 jint smallest_dip_width, 104 jint rotation_degrees) { 105 base::AutoLock autolock(lock_); 106 107 UpdateDisplayInfo(env, obj, 108 display_height, display_width, 109 physical_display_height, physical_display_width, 110 bits_per_pixel, bits_per_component, dip_scale, 111 smallest_dip_width, rotation_degrees); 112 } 113 114 SharedDeviceDisplayInfo::SharedDeviceDisplayInfo() 115 : display_height_(0), 116 display_width_(0), 117 bits_per_pixel_(0), 118 bits_per_component_(0), 119 dip_scale_(0), 120 smallest_dip_width_(0) { 121 JNIEnv* env = base::android::AttachCurrentThread(); 122 j_device_info_.Reset( 123 Java_DeviceDisplayInfo_create( 124 env, base::android::GetApplicationContext())); 125 UpdateDisplayInfo(env, j_device_info_.obj(), 126 Java_DeviceDisplayInfo_getDisplayHeight(env, j_device_info_.obj()), 127 Java_DeviceDisplayInfo_getDisplayWidth(env, j_device_info_.obj()), 128 Java_DeviceDisplayInfo_getPhysicalDisplayHeight(env, 129 j_device_info_.obj()), 130 Java_DeviceDisplayInfo_getPhysicalDisplayWidth(env, j_device_info_.obj()), 131 Java_DeviceDisplayInfo_getBitsPerPixel(env, j_device_info_.obj()), 132 Java_DeviceDisplayInfo_getBitsPerComponent(env, j_device_info_.obj()), 133 Java_DeviceDisplayInfo_getDIPScale(env, j_device_info_.obj()), 134 Java_DeviceDisplayInfo_getSmallestDIPWidth(env, j_device_info_.obj()), 135 Java_DeviceDisplayInfo_getRotationDegrees(env, j_device_info_.obj())); 136 } 137 138 SharedDeviceDisplayInfo::~SharedDeviceDisplayInfo() { 139 } 140 141 void SharedDeviceDisplayInfo::UpdateDisplayInfo(JNIEnv* env, 142 jobject jobj, 143 jint display_height, 144 jint display_width, 145 jint physical_display_height, 146 jint physical_display_width, 147 jint bits_per_pixel, 148 jint bits_per_component, 149 jdouble dip_scale, 150 jint smallest_dip_width, 151 jint rotation_degrees) { 152 display_height_ = static_cast<int>(display_height); 153 display_width_ = static_cast<int>(display_width); 154 physical_display_height_ = static_cast<int>(physical_display_height); 155 physical_display_width_ = static_cast<int>(physical_display_width); 156 bits_per_pixel_ = static_cast<int>(bits_per_pixel); 157 bits_per_component_ = static_cast<int>(bits_per_component); 158 dip_scale_ = static_cast<double>(dip_scale); 159 smallest_dip_width_ = static_cast<int>(smallest_dip_width); 160 rotation_degrees_ = static_cast<int>(rotation_degrees); 161 } 162 163 } // namespace gfx 164
