ozone: support gfx::BufferFormat::RGBX_8888 as a native pixmap format.

ui/ozone/platform/drm/gpu/gbm_buffer.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.h"
 
 #include <drm.h>
 #include <fcntl.h>
 #include <gbm.h>
 #include <xf86drm.h>
@@ skipping 13 matching lines @@
 
 namespace {
 // Optimal format for rendering on overlay.
 const gfx::BufferFormat kOverlayRenderFormat = gfx::BufferFormat::UYVY_422;
 }  // namespace
 
 namespace ui {
 
 GbmBuffer::GbmBuffer(const scoped_refptr<GbmDevice>& gbm,
                      gbm_bo* bo,
+                     gfx::BufferFormat format,
                      gfx::BufferUsage usage)
     : GbmBufferBase(gbm, bo, usage == gfx::BufferUsage::SCANOUT),
+      format_(format),
       usage_(usage) {}
 
 GbmBuffer::~GbmBuffer() {
   if (bo())
     gbm_bo_destroy(bo());
 }
 
 // static
 scoped_refptr<GbmBuffer> GbmBuffer::CreateBuffer(
     const scoped_refptr<GbmDevice>& gbm,
     gfx::BufferFormat format,
     const gfx::Size& size,
     gfx::BufferUsage usage) {
   TRACE_EVENT2("drm", "GbmBuffer::CreateBuffer", "device",
                gbm->device_path().value(), "size", size.ToString());
   bool use_scanout = (usage == gfx::BufferUsage::SCANOUT);
   unsigned flags = 0;
   // GBM_BO_USE_SCANOUT is the hint of x-tiling.
   if (use_scanout)
     flags = GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING;
   gbm_bo* bo = gbm_bo_create(gbm->device(), size.width(), size.height(),
                              GetFourCCFormatFromBufferFormat(format), flags);
   if (!bo)
     return nullptr;
 
-  scoped_refptr<GbmBuffer> buffer(new GbmBuffer(gbm, bo, usage));
+  scoped_refptr<GbmBuffer> buffer(new GbmBuffer(gbm, bo, format, usage));
   if (use_scanout && !buffer->GetFramebufferId())
     return nullptr;
 
   return buffer;
 }
 
 GbmPixmap::GbmPixmap(GbmSurfaceFactory* surface_manager)
     : surface_manager_(surface_manager) {}
 
 void GbmPixmap::Initialize(base::ScopedFD dma_buf, int dma_buf_pitch) {
@@ skipping 63 matching lines @@
 
 int GbmPixmap::GetDmaBufFd() const {
   return dma_buf_.get();
 }
 
 int GbmPixmap::GetDmaBufPitch() const {
   return dma_buf_pitch_;
 }
 
 gfx::BufferFormat GbmPixmap::GetBufferFormat() const {
-  return GetBufferFormatFromFourCCFormat(buffer_->GetFramebufferPixelFormat());
+  return buffer_->GetFormat();
 }
 
 gfx::Size GbmPixmap::GetBufferSize() const {
   return buffer_->GetSize();
 }
 
 bool GbmPixmap::ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
                                      int plane_z_order,
                                      gfx::OverlayTransform plane_transform,
                                      const gfx::Rect& display_bounds,
@@ skipping 44 matching lines @@
   gfx::Size pixmap_size = buffer_->GetSize();
   // If the required size is not integer-sized, round it to the next integer.
   *target_size = gfx::ToCeiledSize(
       gfx::SizeF(display_bounds.width() / crop_rect.width(),
                  display_bounds.height() / crop_rect.height()));
 
   return pixmap_size != *target_size || GetBufferFormat() != *target_format;
 }
 
 }  // namespace ui