1 // Copyright 2014 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/ozone/platform/dri/hardware_display_plane.h" 6 7 #include <drm.h> 8 #include <errno.h> 9 #include <xf86drm.h> 10 11 #include "base/logging.h" 12 #include "ui/gfx/geometry/rect.h" 13 #include "ui/ozone/platform/dri/dri_wrapper.h" 14 15 namespace ui { 16 17 namespace { 18 const char* kCrtcPropName = "CRTC_ID"; 19 const char* kFbPropName = "FB_ID"; 20 const char* kCrtcXPropName = "CRTC_X"; 21 const char* kCrtcYPropName = "CRTC_Y"; 22 const char* kCrtcWPropName = "CRTC_W"; 23 const char* kCrtcHPropName = "CRTC_H"; 24 const char* kSrcXPropName = "SRC_X"; 25 const char* kSrcYPropName = "SRC_Y"; 26 const char* kSrcWPropName = "SRC_W"; 27 const char* kSrcHPropName = "SRC_H"; 28 } 29 30 HardwareDisplayPlane::Property::Property() : id_(0) { 31 } 32 33 bool HardwareDisplayPlane::Property::Initialize( 34 DriWrapper* drm, 35 const char* name, 36 const ScopedDrmObjectPropertyPtr& plane_props) { 37 for (uint32_t i = 0; i < plane_props->count_props; i++) { 38 ScopedDrmPropertyPtr property( 39 drmModeGetProperty(drm->get_fd(), plane_props->props[i])); 40 if (!strcmp(property->name, name)) { 41 id_ = property->prop_id; 42 break; 43 } 44 } 45 if (!id_) { 46 LOG(ERROR) << "Could not find property " << name; 47 return false; 48 } 49 return true; 50 } 51 52 HardwareDisplayPlane::HardwareDisplayPlane( 53 DriWrapper* drm, 54 drmModePropertySetPtr atomic_property_set, 55 ScopedDrmPlanePtr plane) 56 : drm_(drm), 57 property_set_(atomic_property_set), 58 plane_(plane.Pass()), 59 plane_id_(plane_->plane_id) { 60 } 61 62 HardwareDisplayPlane::~HardwareDisplayPlane() { 63 } 64 65 bool HardwareDisplayPlane::CanUseForCrtc(uint32_t crtc_id) { 66 return plane_->possible_crtcs & (1 << crtc_id); 67 } 68 69 bool HardwareDisplayPlane::SetPlaneData(uint32_t crtc_id, 70 uint32_t framebuffer, 71 const gfx::Rect& crtc_rect, 72 const gfx::Rect& src_rect) { 73 int plane_set_error = 74 drmModePropertySetAdd( 75 property_set_, plane_id_, crtc_prop_.id_, crtc_id) || 76 drmModePropertySetAdd( 77 property_set_, plane_id_, fb_prop_.id_, framebuffer) || 78 drmModePropertySetAdd( 79 property_set_, plane_id_, crtc_x_prop_.id_, crtc_rect.x()) || 80 drmModePropertySetAdd( 81 property_set_, plane_id_, crtc_y_prop_.id_, crtc_rect.y()) || 82 drmModePropertySetAdd( 83 property_set_, plane_id_, crtc_w_prop_.id_, crtc_rect.width()) || 84 drmModePropertySetAdd( 85 property_set_, plane_id_, crtc_h_prop_.id_, crtc_rect.height()) || 86 drmModePropertySetAdd( 87 property_set_, plane_id_, src_x_prop_.id_, src_rect.x()) || 88 drmModePropertySetAdd( 89 property_set_, plane_id_, src_y_prop_.id_, src_rect.x()) || 90 drmModePropertySetAdd( 91 property_set_, plane_id_, src_w_prop_.id_, src_rect.width()) || 92 drmModePropertySetAdd( 93 property_set_, plane_id_, src_h_prop_.id_, src_rect.height()); 94 95 if (plane_set_error) { 96 LOG(ERROR) << "Failed to set plane data"; 97 return false; 98 } 99 return true; 100 } 101 102 bool HardwareDisplayPlane::Initialize() { 103 ScopedDrmObjectPropertyPtr plane_props(drmModeObjectGetProperties( 104 drm_->get_fd(), plane_id_, DRM_MODE_OBJECT_PLANE)); 105 106 if (!plane_props) { 107 LOG(ERROR) << "Unable to get plane properties."; 108 return false; 109 } 110 111 bool props_init = 112 crtc_prop_.Initialize(drm_, kCrtcPropName, plane_props) && 113 fb_prop_.Initialize(drm_, kFbPropName, plane_props) && 114 crtc_x_prop_.Initialize(drm_, kCrtcXPropName, plane_props) && 115 crtc_y_prop_.Initialize(drm_, kCrtcYPropName, plane_props) && 116 crtc_w_prop_.Initialize(drm_, kCrtcWPropName, plane_props) && 117 crtc_h_prop_.Initialize(drm_, kCrtcHPropName, plane_props) && 118 src_x_prop_.Initialize(drm_, kSrcXPropName, plane_props) && 119 src_y_prop_.Initialize(drm_, kSrcYPropName, plane_props) && 120 src_w_prop_.Initialize(drm_, kSrcWPropName, plane_props) && 121 src_h_prop_.Initialize(drm_, kSrcHPropName, plane_props); 122 123 if (!props_init) { 124 LOG(ERROR) << "Unable to get plane properties."; 125 return false; 126 } 127 return true; 128 } 129 130 } // namespace ui 131