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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/dri_console_buffer.h" | |
| 6 | |
| 7 #include <sys/mman.h> | |
| 8 #include <xf86drmMode.h> | |
| 9 | |
| 10 #include "third_party/skia/include/core/SkCanvas.h" | |
| 11 #include "ui/ozone/platform/dri/dri_util.h" | |
| 12 #include "ui/ozone/platform/dri/dri_wrapper.h" | |
| 13 #include "ui/ozone/platform/dri/scoped_drm_types.h" | |
| 14 | |
| 15 namespace ui { | |
| 16 | |
| 17 DriConsoleBuffer::DriConsoleBuffer(DriWrapper* dri, uint32_t framebuffer) | |
| 18 : dri_(dri), | |
| 19 handle_(0), | |
| 20 framebuffer_(framebuffer), | |
| 21 mmap_base_(NULL), | |
| 22 mmap_size_(0) { | |
| 23 } | |
| 24 | |
| 25 DriConsoleBuffer::~DriConsoleBuffer() { | |
| 26 if (mmap_base_) | |
| 27 if (munmap(mmap_base_, mmap_size_)) | |
| 28 PLOG(ERROR) << "munmap"; | |
| 29 } | |
| 30 | |
| 31 bool DriConsoleBuffer::Initialize() { | |
| 32 ScopedDrmFramebufferPtr fb(dri_->GetFramebuffer(framebuffer_)); | |
| 33 | |
| 34 if (!fb) | |
| 35 return false; | |
| 36 | |
| 37 handle_ = fb->handle; | |
| 38 stride_ = fb->pitch; | |
| 39 SkImageInfo info = SkImageInfo::MakeN32Premul(fb->width, fb->height); | |
| 40 | |
| 41 mmap_size_ = info.getSafeSize(stride_); | |
| 42 | |
| 43 if (!MapDumbBuffer(dri_->get_fd(), fb->handle, mmap_size_, &mmap_base_)) { | |
| 44 mmap_base_ = NULL; | |
| 45 return false; | |
| 46 } | |
| 47 | |
| 48 surface_ = | |
| 49 skia::AdoptRef(SkSurface::NewRasterDirect(info, mmap_base_, stride_)); | |
| 50 if (!surface_) | |
| 51 return false; | |
| 52 | |
| 53 return true; | |
| 54 } | |
| 55 | |
| 56 } // namespace ui | |
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