Add format modifier IDs for EGL_EXT_image_dma_buf_import extension

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

Index: ui/ozone/platform/drm/gpu/gbm_buffer.cc
diff --git a/ui/ozone/platform/drm/gpu/gbm_buffer.cc b/ui/ozone/platform/drm/gpu/gbm_buffer.cc
index 549b067782d11ffd1dc69067ccdc11ccab5d1224..cd8843728f53ba63867de25b3fc6e6ba140e4759 100644
--- a/ui/ozone/platform/drm/gpu/gbm_buffer.cc
+++ b/ui/ozone/platform/drm/gpu/gbm_buffer.cc
@@ -32,15 +32,13 @@ GbmBuffer::GbmBuffer(const scoped_refptr<GbmDevice>& gbm,
                      gfx::BufferUsage usage,
                      std::vector<base::ScopedFD>&& fds,
                      const gfx::Size& size,
-                     const std::vector<int>& strides,
-                     const std::vector<int>& offsets)
+                     const std::vector<gfx::GbmBufferPlane>&& planes)
     : GbmBufferBase(gbm, bo, format, usage),
       format_(format),
       usage_(usage),
       fds_(std::move(fds)),
       size_(size),
-      strides_(strides),
-      offsets_(offsets) {}
+      planes_(std::move(planes)) {}
 
 GbmBuffer::~GbmBuffer() {
   if (bo())
@@ -68,13 +66,18 @@ int GbmBuffer::GetFd(size_t plane) const {
 }
 
 int GbmBuffer::GetStride(size_t plane) const {
-  DCHECK_LT(plane, strides_.size());
-  return strides_[plane];
+  DCHECK_LT(plane, planes_.size());
+  return planes_[plane].stride;
 }
 
 int GbmBuffer::GetOffset(size_t plane) const {
-  DCHECK_LT(plane, offsets_.size());
-  return offsets_[plane];
+  DCHECK_LT(plane, planes_.size());
+  return planes_[plane].offset;
+}
+
+uint64_t GbmBuffer::GetFormatModifier(size_t plane) const {
+  DCHECK_LT(plane, planes_.size());
+  return planes_[plane].modifier;
 }
 
 // TODO(reveman): This should not be needed once crbug.com/597932 is fixed,
@@ -120,12 +123,11 @@ scoped_refptr<GbmBuffer> GbmBuffer::CreateBuffer(
   }
   std::vector<base::ScopedFD> fds;
   fds.emplace_back(std::move(fd));
-  std::vector<int> strides;
-  strides.push_back(gbm_bo_get_stride(bo));
-  std::vector<int> offsets;
-  offsets.push_back(gbm_bo_get_plane_offset(bo, 0));
+  std::vector<gfx::GbmBufferPlane> planes;
+  planes.emplace_back(gbm_bo_get_stride(bo), gbm_bo_get_plane_offset(bo, 0),
+                      gbm_bo_get_format_modifier(bo));
   scoped_refptr<GbmBuffer> buffer(new GbmBuffer(
-      gbm, bo, format, usage, std::move(fds), size, strides, offsets));
+      gbm, bo, format, usage, std::move(fds), size, std::move(planes)));
   if (usage == gfx::BufferUsage::SCANOUT && !buffer->GetFramebufferId())
     return nullptr;
 
@@ -138,16 +140,15 @@ scoped_refptr<GbmBuffer> GbmBuffer::CreateBufferFromFds(
     gfx::BufferFormat format,
     const gfx::Size& size,
     std::vector<base::ScopedFD>&& fds,
-    const std::vector<int>& strides,
-    const std::vector<int>& offsets) {
+    const std::vector<gfx::GbmBufferPlane>&& planes) {
   TRACE_EVENT2("drm", "GbmBuffer::CreateBufferFromFD", "device",
                gbm->device_path().value(), "size", size.ToString());
-  DCHECK_EQ(fds.size(), strides.size());
+  DCHECK_EQ(fds.size(), planes.size());
   // TODO(reveman): Use gbm_bo_import after making buffers survive
   // GPU process crashes. crbug.com/597932
   return make_scoped_refptr(
       new GbmBuffer(gbm, nullptr, format, gfx::BufferUsage::GPU_READ,
-                    std::move(fds), size, strides, offsets));
+                    std::move(fds), size, std::move(planes)));
 }
 
 GbmPixmap::GbmPixmap(GbmSurfaceFactory* surface_manager,
@@ -174,8 +175,8 @@ gfx::NativePixmapHandle GbmPixmap::ExportHandle() {
       handle.fds.emplace_back(
           base::FileDescriptor(scoped_fd.release(), true /* auto_close */));
     }
-    handle.strides_and_offsets.emplace_back(buffer_->GetStride(i),
-                                            buffer_->GetOffset(i));
+    handle.planes.emplace_back(buffer_->GetStride(i), buffer_->GetOffset(i),
+                               buffer_->GetFormatModifier(i));
   }
   return handle;
 }
@@ -207,6 +208,10 @@ int GbmPixmap::GetDmaBufOffset(size_t plane) const {
   return buffer_->GetOffset(plane);
 }
 
+uint64_t GbmPixmap::GetDmaBufModifier(size_t plane) const {
+  return buffer_->GetFormatModifier(plane);
+}
+
 gfx::BufferFormat GbmPixmap::GetBufferFormat() const {
   return buffer_->GetFormat();
 }