ozone: Import multi-planar GBMs.

ui/ozone/platform/drm/gpu/gbm_buffer_base.cc

 // 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/gbm_buffer_base.h"
 
 #include <gbm.h>
 
 #include "base/logging.h"
 #include "ui/ozone/platform/drm/common/drm_util.h"
 #include "ui/ozone/platform/drm/gpu/gbm_device.h"
 
 namespace ui {
 
 GbmBufferBase::GbmBufferBase(const scoped_refptr<GbmDevice>& drm,
                              gbm_bo* bo,
                              uint32_t format,
                              uint32_t flags,
                              uint64_t modifier,
                              uint32_t addfb_flags)
     : drm_(drm), bo_(bo) {
   if (flags & GBM_BO_USE_SCANOUT) {
     DCHECK(bo_);
     framebuffer_pixel_format_ = format;
     opaque_framebuffer_pixel_format_ = GetFourCCFormatForOpaqueFramebuffer(
         GetBufferFormatFromFourCCFormat(format));
 
-    // TODO(dcastagna): Add multi-planar support.
     uint32_t handles[4] = {0};
-    handles[0] = gbm_bo_get_handle(bo).u32;
     uint32_t strides[4] = {0};
-    strides[0] = gbm_bo_get_stride(bo);
     uint32_t offsets[4] = {0};
     uint64_t modifiers[4] = {0};
-    modifiers[0] = modifier;
+
+    for (size_t i = 0; i < gbm_bo_get_num_planes(bo); ++i) {
+      handles[i] = gbm_bo_get_plane_handle(bo, i).u32;
+      strides[i] = gbm_bo_get_plane_stride(bo, i);
+      offsets[i] = gbm_bo_get_plane_offset(bo, i);
+      modifiers[i] = modifier;
+    }
 
     // AddFramebuffer2 only considers the modifiers if addfb_flags has
     // DRM_MODE_FB_MODIFIERS set. We only set that when we've created
     // a bo with modifiers, otherwise, we rely on the "no modifiers"
     // behavior doing the right thing.
     drm_->AddFramebuffer2(gbm_bo_get_width(bo), gbm_bo_get_height(bo),
                           framebuffer_pixel_format_, handles, strides, offsets,
                           modifiers, &framebuffer_, addfb_flags);
     if (opaque_framebuffer_pixel_format_ != framebuffer_pixel_format_) {
       drm_->AddFramebuffer2(gbm_bo_get_width(bo), gbm_bo_get_height(bo),
@@ skipping 37 matching lines @@
 
 const DrmDevice* GbmBufferBase::GetDrmDevice() const {
   return drm_.get();
 }
 
 bool GbmBufferBase::RequiresGlFinish() const {
   return !drm_->is_primary_device();
 }
 
 }  // namespace ui