[Mesa-dev] [PATCH v3 05/22] egl: add dri2_egl_surface_free_outdated_buffers_and_update_size() helper

[Gwan-gyeong Mun]

To share common free outdated buffers and update size code.
This compares width and height arguments with current egl surface dimension,
if the compared surface dimension is differ, then it free local buffers and
updates dimension.

Signed-off-by: Mun Gwan-gyeong <elongbug at gmail.com>
---
 src/egl/drivers/dri2/egl_dri2.c | 12 ++++++++++++
 src/egl/drivers/dri2/egl_dri2.h |  3 +++
 2 files changed, 15 insertions(+)

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index 89e18b6331..8d4bfa8c1a 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -1066,6 +1066,18 @@ dri2_egl_surface_free_local_buffers(struct dri2_egl_surface *dri2_surf)
    }
 }
 
+void
+dri2_egl_surface_free_outdated_buffers_and_update_size(struct dri2_egl_surface *dri2_surf,
+                                                       int width, int height)
+{
+   /* free outdated buffers and update the surface size */
+   if (dri2_surf->base.Width != width || dri2_surf->base.Height != height) {
+      dri2_egl_surface_free_local_buffers(dri2_surf);
+      dri2_surf->base.Width = width;
+      dri2_surf->base.Height = height;
+   }
+}
+
 /**
  * Called via eglTerminate(), drv->API.Terminate().
  *
diff --git a/src/egl/drivers/dri2/egl_dri2.h b/src/egl/drivers/dri2/egl_dri2.h
index d3cd9e1fef..4d2348e584 100644
--- a/src/egl/drivers/dri2/egl_dri2.h
+++ b/src/egl/drivers/dri2/egl_dri2.h
@@ -486,6 +486,9 @@ dri2_egl_surface_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
 void
 dri2_egl_surface_free_local_buffers(struct dri2_egl_surface *dri2_surf);
 
+void
+dri2_egl_surface_free_outdated_buffers_and_update_size(struct dri2_egl_surface *dri2_surf,
+                                                       int width, int height);
 EGLBoolean
 dri2_init_surface(_EGLSurface *surf, _EGLDisplay *dpy, EGLint type,
         _EGLConfig *conf, const EGLint *attrib_list, EGLBoolean enable_out_fence);
-- 
2.14.2