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// Copyright 2014 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/ozone/platform/drm/gpu/drm_console_buffer.h"
#include <sys/mman.h>
#include <xf86drmMode.h>
#include "third_party/skia/include/core/SkCanvas.h"
#include "ui/ozone/platform/drm/gpu/drm_device.h"
#include "ui/ozone/platform/drm/gpu/drm_util.h"
#include "ui/ozone/platform/drm/gpu/scoped_drm_types.h"
namespace ui {
DrmConsoleBuffer::DrmConsoleBuffer(const scoped_refptr<DrmDevice>& drm,
uint32_t framebuffer)
: drm_(drm),
handle_(0),
framebuffer_(framebuffer),
mmap_base_(NULL),
mmap_size_(0) {
}
DrmConsoleBuffer::~DrmConsoleBuffer() {
if (mmap_base_)
if (munmap(mmap_base_, mmap_size_))
PLOG(ERROR) << "munmap";
}
bool DrmConsoleBuffer::Initialize() {
ScopedDrmFramebufferPtr fb(drm_->GetFramebuffer(framebuffer_));
if (!fb)
return false;
handle_ = fb->handle;
stride_ = fb->pitch;
SkImageInfo info = SkImageInfo::MakeN32Premul(fb->width, fb->height);
mmap_size_ = info.getSafeSize(stride_);
if (!MapDumbBuffer(drm_->get_fd(), fb->handle, mmap_size_, &mmap_base_)) {
mmap_base_ = NULL;
return false;
}
surface_ =
skia::AdoptRef(SkSurface::NewRasterDirect(info, mmap_base_, stride_));
if (!surface_)
return false;
return true;
}
} // namespace ui
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