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| 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/gbm_surface.h" | |
| 6 | |
| 7 #include <gbm.h> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #include "ui/ozone/platform/dri/dri_buffer.h" | |
| 11 #include "ui/ozone/platform/dri/dri_window_delegate.h" | |
| 12 #include "ui/ozone/platform/dri/dri_wrapper.h" | |
| 13 #include "ui/ozone/platform/dri/gbm_buffer_base.h" | |
| 14 #include "ui/ozone/platform/dri/hardware_display_controller.h" | |
| 15 #include "ui/ozone/platform/dri/scanout_buffer.h" | |
| 16 | |
| 17 namespace ui { | |
| 18 | |
| 19 namespace { | |
| 20 | |
| 21 class GbmSurfaceBuffer : public GbmBufferBase { | |
| 22 public: | |
| 23 static scoped_refptr<GbmSurfaceBuffer> CreateBuffer(DriWrapper* dri, | |
| 24 gbm_bo* buffer); | |
| 25 static scoped_refptr<GbmSurfaceBuffer> GetBuffer(gbm_bo* buffer); | |
| 26 | |
| 27 private: | |
| 28 GbmSurfaceBuffer(DriWrapper* dri, gbm_bo* bo); | |
| 29 virtual ~GbmSurfaceBuffer(); | |
| 30 | |
| 31 static void Destroy(gbm_bo* buffer, void* data); | |
| 32 | |
| 33 // This buffer is special and is released by GBM at any point in time (as | |
| 34 // long as it isn't being used). Since GBM should be the only one to | |
| 35 // release this buffer, keep a self-reference in order to keep this alive. | |
| 36 // When GBM calls Destroy(..) the self-reference will dissapear and this will | |
| 37 // be destroyed. | |
| 38 scoped_refptr<GbmSurfaceBuffer> self_; | |
| 39 | |
| 40 DISALLOW_COPY_AND_ASSIGN(GbmSurfaceBuffer); | |
| 41 }; | |
| 42 | |
| 43 GbmSurfaceBuffer::GbmSurfaceBuffer(DriWrapper* dri, gbm_bo* bo) | |
| 44 : GbmBufferBase(dri, bo, true) { | |
| 45 if (GetFramebufferId()) { | |
| 46 self_ = this; | |
| 47 gbm_bo_set_user_data(bo, this, GbmSurfaceBuffer::Destroy); | |
| 48 } | |
| 49 } | |
| 50 | |
| 51 GbmSurfaceBuffer::~GbmSurfaceBuffer() {} | |
| 52 | |
| 53 // static | |
| 54 scoped_refptr<GbmSurfaceBuffer> GbmSurfaceBuffer::CreateBuffer( | |
| 55 DriWrapper* dri, gbm_bo* buffer) { | |
| 56 scoped_refptr<GbmSurfaceBuffer> scoped_buffer(new GbmSurfaceBuffer(dri, | |
| 57 buffer)); | |
| 58 if (!scoped_buffer->GetFramebufferId()) | |
| 59 return NULL; | |
| 60 | |
| 61 return scoped_buffer; | |
| 62 } | |
| 63 | |
| 64 // static | |
| 65 scoped_refptr<GbmSurfaceBuffer> GbmSurfaceBuffer::GetBuffer(gbm_bo* buffer) { | |
| 66 return scoped_refptr<GbmSurfaceBuffer>( | |
| 67 static_cast<GbmSurfaceBuffer*>(gbm_bo_get_user_data(buffer))); | |
| 68 } | |
| 69 | |
| 70 // static | |
| 71 void GbmSurfaceBuffer::Destroy(gbm_bo* buffer, void* data) { | |
| 72 GbmSurfaceBuffer* scoped_buffer = static_cast<GbmSurfaceBuffer*>(data); | |
| 73 scoped_buffer->self_ = NULL; | |
| 74 } | |
| 75 | |
| 76 } // namespace | |
| 77 | |
| 78 GbmSurface::GbmSurface(DriWindowDelegate* window_delegate, | |
| 79 gbm_device* device, | |
| 80 DriWrapper* dri) | |
| 81 : GbmSurfaceless(window_delegate), | |
| 82 gbm_device_(device), | |
| 83 dri_(dri), | |
| 84 native_surface_(NULL), | |
| 85 current_buffer_(NULL) { | |
| 86 } | |
| 87 | |
| 88 GbmSurface::~GbmSurface() { | |
| 89 if (current_buffer_) | |
| 90 gbm_surface_release_buffer(native_surface_, current_buffer_); | |
| 91 | |
| 92 if (native_surface_) | |
| 93 gbm_surface_destroy(native_surface_); | |
| 94 } | |
| 95 | |
| 96 bool GbmSurface::Initialize() { | |
| 97 // If we're initializing the surface without a controller (possible on startup | |
| 98 // where the surface creation can happen before the native window delegate | |
| 99 // IPCs arrive), initialize the size to a valid value such that surface | |
| 100 // creation doesn't fail. | |
| 101 gfx::Size size(1, 1); | |
| 102 if (window_delegate_->GetController()) { | |
| 103 size = window_delegate_->GetController()->GetModeSize(); | |
| 104 } | |
| 105 // TODO(dnicoara) Check underlying system support for pixel format. | |
| 106 native_surface_ = | |
| 107 gbm_surface_create(gbm_device_, | |
| 108 size.width(), | |
| 109 size.height(), | |
| 110 GBM_BO_FORMAT_XRGB8888, | |
| 111 GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING); | |
| 112 | |
| 113 if (!native_surface_) | |
| 114 return false; | |
| 115 | |
| 116 size_ = size; | |
| 117 return true; | |
| 118 } | |
| 119 | |
| 120 intptr_t GbmSurface::GetNativeWindow() { | |
| 121 DCHECK(native_surface_); | |
| 122 return reinterpret_cast<intptr_t>(native_surface_); | |
| 123 } | |
| 124 | |
| 125 bool GbmSurface::ResizeNativeWindow(const gfx::Size& viewport_size) { | |
| 126 if (size_ == viewport_size) | |
| 127 return true; | |
| 128 | |
| 129 return false; | |
| 130 } | |
| 131 | |
| 132 bool GbmSurface::OnSwapBuffers() { | |
| 133 DCHECK(native_surface_); | |
| 134 | |
| 135 gbm_bo* pending_buffer = gbm_surface_lock_front_buffer(native_surface_); | |
| 136 scoped_refptr<GbmSurfaceBuffer> primary = | |
| 137 GbmSurfaceBuffer::GetBuffer(pending_buffer); | |
| 138 if (!primary.get()) { | |
| 139 primary = GbmSurfaceBuffer::CreateBuffer(dri_, pending_buffer); | |
| 140 if (!primary.get()) { | |
| 141 LOG(ERROR) << "Failed to associate the buffer with the controller"; | |
| 142 return false; | |
| 143 } | |
| 144 } | |
| 145 | |
| 146 // The primary buffer is a special case. | |
| 147 if (window_delegate_->GetController()) | |
| 148 window_delegate_->GetController()->QueueOverlayPlane(OverlayPlane(primary)); | |
| 149 | |
| 150 if (!GbmSurfaceless::OnSwapBuffers()) | |
| 151 return false; | |
| 152 | |
| 153 // If there was a frontbuffer, it is no longer active. Release it back to GBM. | |
| 154 if (current_buffer_) | |
| 155 gbm_surface_release_buffer(native_surface_, current_buffer_); | |
| 156 | |
| 157 current_buffer_ = pending_buffer; | |
| 158 return true; | |
| 159 } | |
| 160 | |
| 161 } // namespace ui | |
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