| // 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/dri/gbm_buffer.h" |
| |
| #include <drm.h> |
| #include <fcntl.h> |
| #include <gbm.h> |
| #include <xf86drm.h> |
| |
| #include "base/logging.h" |
| #include "ui/ozone/platform/dri/dri_wrapper.h" |
| |
| namespace ui { |
| |
| namespace { |
| |
| int GetGbmFormatFromBufferFormat(SurfaceFactoryOzone::BufferFormat fmt) { |
| switch (fmt) { |
| case SurfaceFactoryOzone::RGBA_8888: |
| return GBM_BO_FORMAT_ARGB8888; |
| case SurfaceFactoryOzone::RGBX_8888: |
| return GBM_BO_FORMAT_XRGB8888; |
| default: |
| NOTREACHED(); |
| return 0; |
| } |
| } |
| |
| } // namespace |
| |
| GbmBuffer::GbmBuffer(DriWrapper* dri, gbm_bo* bo, bool scanout) |
| : GbmBufferBase(dri, bo, scanout) { |
| } |
| |
| GbmBuffer::~GbmBuffer() { |
| if (bo()) |
| gbm_bo_destroy(bo()); |
| } |
| |
| // static |
| scoped_refptr<GbmBuffer> GbmBuffer::CreateBuffer( |
| DriWrapper* dri, |
| gbm_device* device, |
| SurfaceFactoryOzone::BufferFormat format, |
| const gfx::Size& size, |
| bool scanout) { |
| unsigned flags = GBM_BO_USE_RENDERING; |
| if (scanout) |
| flags |= GBM_BO_USE_SCANOUT; |
| gbm_bo* bo = gbm_bo_create(device, |
| size.width(), |
| size.height(), |
| GetGbmFormatFromBufferFormat(format), |
| flags); |
| if (!bo) |
| return NULL; |
| |
| scoped_refptr<GbmBuffer> buffer(new GbmBuffer(dri, bo, scanout)); |
| if (scanout && !buffer->GetFramebufferId()) |
| return NULL; |
| |
| return buffer; |
| } |
| |
| GbmPixmap::GbmPixmap(scoped_refptr<GbmBuffer> buffer) |
| : buffer_(buffer), dma_buf_(-1) { |
| } |
| |
| bool GbmPixmap::Initialize(DriWrapper* dri) { |
| if (drmPrimeHandleToFD(dri->get_fd(), |
| buffer_->GetHandle(), |
| DRM_CLOEXEC, |
| &dma_buf_)) { |
| LOG(ERROR) << "Failed to export buffer to dma_buf"; |
| return false; |
| } |
| |
| return true; |
| } |
| |
| GbmPixmap::~GbmPixmap() { |
| if (dma_buf_ > 0) |
| close(dma_buf_); |
| } |
| |
| void* GbmPixmap::GetEGLClientBuffer() { |
| return NULL; |
| } |
| |
| int GbmPixmap::GetDmaBufFd() { |
| return dma_buf_; |
| } |
| |
| int GbmPixmap::GetDmaBufPitch() { |
| return gbm_bo_get_stride(buffer_->bo()); |
| } |
| |
| } // namespace ui |