dri: Rework planar image interface

As discussed with Kristian on #wayland. Pushes the decision of components into
the dri driver giving it greater freedom to allow t to implement YUV samplers
in hardware, and which mode to use.

This interface will also allow drivers like SVGA to implement YUV surfaces
without the need to sub-allocate and instead send 3 seperate buffers for each
channel, currently not implemented.

I have tested these changes on Gallium Svga. Scott tested them on both intel
and Gallium Radeon. Kristan and Pekka tested them on intel.

v2: Fix typo in dri2_from_planar.
v3: Merge in intel changes.

Tested-by: Scott Moreau <[email protected]>
Tested-by: Pekka Paalanen <[email protected]>
Tested-by: Kristian Høgsberg <[email protected]>
Reviewed-by: Kristian Høgsberg <[email protected]>
Signed-off-by: Jakob Bornecrantz <[email protected]>

6 files changed, 286 insertions, 119 deletions

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index 7326b858433..f2cce747e7a 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -1093,68 +1093,16 @@ dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
  * wl_drm format code to a description of the planes in the buffer
  * that lets us create a __DRIimage for each of the planes. */
 
-static const struct wl_drm_format_descriptor {
-   uint32_t wl_format;
+static const struct wl_drm_components_descriptor {
+   uint32_t dri_components;
    EGLint components;
    int nplanes;
-   struct {
-      int buffer_index;
-      int width_shift;
-      int height_shift;
-      uint32_t dri_format;
-      int cpp;
-   } planes[3];
-} wl_drm_formats[] = {
-   { WL_DRM_FORMAT_ARGB8888, EGL_TEXTURE_RGBA, 1,
-     { { 0, 0, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 }, } },
-
-   { WL_DRM_FORMAT_XRGB8888, EGL_TEXTURE_RGB, 1,
-     { { 0, 0, 0, __DRI_IMAGE_FORMAT_XRGB8888, 4 }, } },
-
-   { WL_DRM_FORMAT_YUV410, EGL_TEXTURE_Y_U_V_WL, 3,
-     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
-       { 1, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 },
-       { 2, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 } } },
-
-   { WL_DRM_FORMAT_YUV411, EGL_TEXTURE_Y_U_V_WL, 3,
-     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
-       { 1, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 },
-       { 2, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
-
-   { WL_DRM_FORMAT_YUV420, EGL_TEXTURE_Y_U_V_WL, 3,
-     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
-       { 1, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 },
-       { 2, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 } } },
-
-   { WL_DRM_FORMAT_YUV422, EGL_TEXTURE_Y_U_V_WL, 3,
-     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
-       { 1, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 },
-       { 2, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
-
-   { WL_DRM_FORMAT_YUV444, EGL_TEXTURE_Y_U_V_WL, 3,
-     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
-       { 1, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
-       { 2, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
-
-   { WL_DRM_FORMAT_NV12, EGL_TEXTURE_Y_UV_WL, 2,
-     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
-       { 1, 1, 1, __DRI_IMAGE_FORMAT_GR88, 2 } } },
-
-   { WL_DRM_FORMAT_NV16, EGL_TEXTURE_Y_UV_WL, 2,
-     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
-       { 1, 1, 0, __DRI_IMAGE_FORMAT_GR88, 2 } } },
-
-   /* For YUYV buffers, we set up two overlapping DRI images and treat
-    * them as planar buffers in the compositors.  Plane 0 is GR88 and
-    * samples YU or YV pairs and places Y into the R component, while
-    * plane 1 is ARGB and samples YUYV clusters and places pairs and
-    * places U into the G component and V into A.  This lets the
-    * texture sampler interpolate the Y components correctly when
-    * sampling from plane 0, and interpolate U and V correctly when
-    * sampling from plane 1. */
-   { WL_DRM_FORMAT_YUYV, EGL_TEXTURE_Y_XUXV_WL, 2,
-     { { 0, 0, 0, __DRI_IMAGE_FORMAT_GR88, 2 },
-       { 0, 1, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 } } }
+} wl_drm_components[] = {
+   { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
+   { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
+   { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
+   { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
+   { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
 };
 
 static _EGLImage *
@@ -1164,13 +1112,11 @@ dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
 {
    struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   const struct wl_drm_components_descriptor *f;
    __DRIimage *dri_image;
    _EGLImageAttribs attrs;
    EGLint err;
-   uint32_t format;
-   int32_t offset, stride, plane, width, height;
-   int cpp, index;
-   const struct wl_drm_format_descriptor *f;
+   int32_t plane;
 
    if (!wayland_buffer_is_drm(&buffer->buffer))
        return NULL;
@@ -1189,17 +1135,12 @@ dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
       return NULL;
    }
 
-   width = buffer->buffer.width >> f->planes[plane].width_shift;
-   height = buffer->buffer.height >> f->planes[plane].height_shift;
-   format = f->planes[plane].dri_format;
-   cpp = f->planes[plane].cpp;
-   index = f->planes[plane].buffer_index;
-   offset = buffer->offset[index];
-   stride = buffer->stride[index];
+   dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
 
-   dri_image = dri2_dpy->image->createSubImage(buffer->driver_buffer,
-                                               width, height, format,
-                                               offset, stride / cpp, NULL);
+   if (dri_image == NULL) {
+      _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
+      return NULL;
+   }
 
    return dri2_create_image(disp, dri_image);
 }
@@ -1360,24 +1301,31 @@ dri2_wl_reference_buffer(void *user_data, uint32_t name,
 {
    _EGLDisplay *disp = user_data;
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-   int i;
+   __DRIimage *img;
+   int i, dri_components = 0;
+
+   img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
+                                               buffer->buffer.width,
+                                               buffer->buffer.height,
+                                               buffer->format, (int*)&name, 1,
+                                               buffer->stride,
+                                               buffer->offset,
+                                               NULL);
+
+   if (img == NULL)
+      return;
 
-   for (i = 0; i < ARRAY_SIZE(wl_drm_formats); i++)
-      if (wl_drm_formats[i].wl_format == buffer->format) {
-         buffer->driver_format = &wl_drm_formats[i];
-         break;
-      }
+   dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
 
-   if (buffer->driver_format == NULL)
-      return;
+   buffer->driver_format = NULL;
+   for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
+      if (wl_drm_components[i].dri_components == dri_components)
+         buffer->driver_format = &wl_drm_components[i];
 
-   buffer->driver_buffer =
-      dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
-                                           buffer->buffer.width,
-                                           buffer->buffer.height, 
-                                           __DRI_IMAGE_FORMAT_NONE, name,
-                                           buffer->stride[0] / 4,
-                                           NULL);
+   if (buffer->driver_format == NULL)
+      dri2_dpy->image->destroyImage(img);
+   else
+      buffer->driver_buffer = img;
 }
 
 static void
@@ -1442,7 +1390,7 @@ dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
                              EGLint attribute, EGLint *value)
 {
    struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
-   const struct wl_drm_format_descriptor *format;
+   const struct wl_drm_components_descriptor *format;
 
    if (!wayland_buffer_is_drm(&buffer->buffer))
       return EGL_FALSE;
diff --git a/src/gallium/state_trackers/dri/common/dri_screen.h b/src/gallium/state_trackers/dri/common/dri_screen.h
index 2818e9c2683..ff48b022157 100644
--- a/src/gallium/state_trackers/dri/common/dri_screen.h
+++ b/src/gallium/state_trackers/dri/common/dri_screen.h
@@ -86,6 +86,7 @@ struct __DRIimageRec {
    unsigned level;
    unsigned layer;
    uint32_t dri_format;
+   uint32_t dri_components;
 
    void *loader_private;
 };
diff --git a/src/gallium/state_trackers/dri/drm/dri2.c b/src/gallium/state_trackers/dri/drm/dri2.c
index d7f4dd666b5..2f83dabf165 100644
--- a/src/gallium/state_trackers/dri/drm/dri2.c
+++ b/src/gallium/state_trackers/dri/drm/dri2.c
@@ -574,6 +574,7 @@ dri2_create_image(__DRIscreen *_screen,
    img->level = 0;
    img->layer = 0;
    img->dri_format = format;
+   img->dri_components = 0;
 
    img->loader_private = loaderPrivate;
    return img;
@@ -612,6 +613,11 @@ dri2_query_image(__DRIimage *image, int attrib, int *value)
    case __DRI_IMAGE_ATTRIB_HEIGHT:
       *value = image->texture->height0;
       return GL_TRUE;
+   case __DRI_IMAGE_ATTRIB_COMPONENTS:
+      if (image->dri_components == 0)
+         return GL_FALSE;
+      *value = image->dri_components;
+      return GL_TRUE;
    default:
       return GL_FALSE;
    }
@@ -630,6 +636,8 @@ dri2_dup_image(__DRIimage *image, void *loaderPrivate)
    pipe_resource_reference(&img->texture, image->texture);
    img->level = image->level;
    img->layer = image->layer;
+   /* This should be 0 for sub images, but dup is also used for base images. */
+   img->dri_components = image->dri_components;
    img->loader_private = loaderPrivate;
 
    return img;
@@ -649,6 +657,76 @@ dri2_validate_usage(__DRIimage *image, unsigned int use)
       return GL_FALSE;
 }
 
+static __DRIimage *
+dri2_from_names(__DRIscreen *screen, int width, int height, int format,
+                int *names, int num_names, int *strides, int *offsets,
+                void *loaderPrivate)
+{
+   __DRIimage *img;
+   int stride, dri_components;
+
+   if (num_names != 1)
+      return NULL;
+   if (offsets[0] != 0)
+      return NULL;
+
+   switch(format) {
+   case __DRI_IMAGE_FOURCC_RGB565:
+      format = __DRI_IMAGE_FORMAT_RGB565;
+      dri_components = __DRI_IMAGE_COMPONENTS_RGB;
+      break;
+   case __DRI_IMAGE_FOURCC_ARGB8888:
+      format = __DRI_IMAGE_FORMAT_ARGB8888;
+      dri_components = __DRI_IMAGE_COMPONENTS_RGBA;
+      break;
+   case __DRI_IMAGE_FOURCC_XRGB8888:
+      format = __DRI_IMAGE_FORMAT_XRGB8888;
+      dri_components = __DRI_IMAGE_COMPONENTS_RGB;
+      break;
+   case __DRI_IMAGE_FOURCC_ABGR8888:
+      format = __DRI_IMAGE_FORMAT_ABGR8888;
+      dri_components = __DRI_IMAGE_COMPONENTS_RGBA;
+      break;
+   case __DRI_IMAGE_FOURCC_XBGR8888:
+      format = __DRI_IMAGE_FORMAT_XBGR8888;
+      dri_components = __DRI_IMAGE_COMPONENTS_RGB;
+      break;
+   default:
+      return NULL;
+   }
+
+   /* Strides are in bytes not pixels. */
+   stride = strides[0] /4;
+
+   img = dri2_create_image_from_name(screen, width, height, format,
+                                     names[0], stride, loaderPrivate);
+   if (img == NULL)
+      return NULL;
+
+   img->dri_components = dri_components;
+   return img;
+}
+
+static __DRIimage *
+dri2_from_planar(__DRIimage *image, int plane, void *loaderPrivate)
+{
+   __DRIimage *img;
+
+   if (plane != 0)
+      return NULL;
+
+   if (image->dri_components == 0)
+      return NULL;
+
+   img = dri2_dup_image(image, loaderPrivate);
+   if (img == NULL)
+      return NULL;
+
+   /* set this to 0 for sub images. */
+   img->dri_components = 0;
+   return img;
+}
+
 static void
 dri2_destroy_image(__DRIimage *img)
 {
@@ -657,7 +735,7 @@ dri2_destroy_image(__DRIimage *img)
 }
 
 static struct __DRIimageExtensionRec dri2ImageExtension = {
-    { __DRI_IMAGE, 4 },
+    { __DRI_IMAGE, 5 },
     dri2_create_image_from_name,
     dri2_create_image_from_renderbuffer,
     dri2_destroy_image,
@@ -665,6 +743,8 @@ static struct __DRIimageExtensionRec dri2ImageExtension = {
     dri2_query_image,
     dri2_dup_image,
     dri2_validate_usage,
+    dri2_from_names,
+    dri2_from_planar,
 };
 
 /*
diff --git a/src/gbm/backends/dri/gbm_dri.c b/src/gbm/backends/dri/gbm_dri.c
index 1831f137789..d8b1cc78892 100644
--- a/src/gbm/backends/dri/gbm_dri.c
+++ b/src/gbm/backends/dri/gbm_dri.c
@@ -363,7 +363,7 @@ gbm_dri_bo_import(struct gbm_device *gbm,
    struct gbm_dri_bo *bo;
    __DRIimage *image;
    unsigned dri_use = 0;
-   int dri_format, width, height, gbm_format, stride, cpp, offset;
+   int gbm_format;
 
    /* Required for query image WIDTH & HEIGHT */
    if (dri->image->base.version < 4)
@@ -376,20 +376,15 @@ gbm_dri_bo_import(struct gbm_device *gbm,
       struct wl_drm_buffer *wb = (struct wl_drm_buffer *) buffer;
 
       image = wb->driver_buffer;
-      stride = wb->stride[0];
-      offset = wb->offset[0];
-      cpp = 4;
+
       switch (wb->format) {
       case WL_DRM_FORMAT_XRGB8888:
-         dri_format = __DRI_IMAGE_FORMAT_XRGB8888;
          gbm_format = GBM_FORMAT_XRGB8888;
          break;
       case WL_DRM_FORMAT_ARGB8888:
-         dri_format = __DRI_IMAGE_FORMAT_ARGB8888;
          gbm_format = GBM_FORMAT_ARGB8888;
          break;
       case WL_DRM_FORMAT_YUYV:
-         dri_format = __DRI_IMAGE_FORMAT_ARGB8888;
          gbm_format = GBM_FORMAT_YUYV;
          break;
       default:
@@ -401,15 +396,15 @@ gbm_dri_bo_import(struct gbm_device *gbm,
 
    case GBM_BO_IMPORT_EGL_IMAGE:
    {
+      int dri_format;
       if (dri->lookup_image == NULL)
          return NULL;
 
       image = dri->lookup_image(dri->screen, buffer, dri->lookup_user_data);
       dri->image->queryImage(image, __DRI_IMAGE_ATTRIB_FORMAT, &dri_format);
       gbm_format = gbm_dri_to_gbm_format(dri_format);
-      dri->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
-      offset = 0;
-      cpp = 4;
+      if (gbm_format == 0)
+         return NULL;
       break;
    }
 
@@ -422,13 +417,7 @@ gbm_dri_bo_import(struct gbm_device *gbm,
    if (bo == NULL)
       return NULL;
 
-   dri->image->queryImage(image, __DRI_IMAGE_ATTRIB_WIDTH, &width);
-   dri->image->queryImage(image, __DRI_IMAGE_ATTRIB_HEIGHT, &height);
-
-   bo->image = dri->image->createSubImage(image,
-                                          width, height, dri_format,
-                                          offset, stride / cpp, NULL);
-
+   bo->image = dri->image->dupImage(image, NULL);
 
    if (usage & GBM_BO_USE_SCANOUT)
       dri_use |= __DRI_IMAGE_USE_SCANOUT;
@@ -441,10 +430,14 @@ gbm_dri_bo_import(struct gbm_device *gbm,
    }
 
    bo->base.base.gbm = gbm;
-   bo->base.base.width = width;
-   bo->base.base.height = height;
-   bo->base.base.stride = stride;
    bo->base.base.format = gbm_format;
+
+   dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_WIDTH,
+                          (int*)&bo->base.base.width);
+   dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_HEIGHT,
+                          (int*)&bo->base.base.height);
+   dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_STRIDE,
+                          (int*)&bo->base.base.stride);
    dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_HANDLE,
                           &bo->base.base.handle.s32);
 
diff --git a/src/mesa/drivers/dri/intel/intel_regions.h b/src/mesa/drivers/dri/intel/intel_regions.h
index 4ff0efed72a..7480853d360 100644
--- a/src/mesa/drivers/dri/intel/intel_regions.h
+++ b/src/mesa/drivers/dri/intel/intel_regions.h
@@ -141,12 +141,38 @@ uint32_t
 intel_region_get_aligned_offset(struct intel_region *region, uint32_t x,
                                 uint32_t y);
 
+/**
+ * Used with images created with image_from_names
+ * to help support planar images.
+ */
+struct intel_image_format {
+   int fourcc;
+   int components;
+   int nplanes;
+   struct {
+      int buffer_index;
+      int width_shift;
+      int height_shift;
+      uint32_t dri_format;
+      int cpp;
+   } planes[3];
+};
+
 struct __DRIimageRec {
    struct intel_region *region;
    GLenum internal_format;
    uint32_t dri_format;
    GLuint format;
    uint32_t offset;
+
+   /*
+    * Need to save these here between calls to
+    * image_from_names and calls to image_from_planar.
+    */
+   uint32_t strides[3];
+   uint32_t offsets[3];
+   struct intel_image_format *planar_format;
+
    void *data;
 };
 
diff --git a/src/mesa/drivers/dri/intel/intel_screen.c b/src/mesa/drivers/dri/intel/intel_screen.c
index 55cebaca013..7476ca00414 100644
--- a/src/mesa/drivers/dri/intel/intel_screen.c
+++ b/src/mesa/drivers/dri/intel/intel_screen.c
@@ -190,6 +190,59 @@ static const struct __DRI2flushExtensionRec intelFlushExtension = {
     dri2InvalidateDrawable,
 };
 
+struct intel_image_format intel_image_formats[] = {
+   { __DRI_IMAGE_FOURCC_ARGB8888, __DRI_IMAGE_COMPONENTS_RGBA, 1,
+     { { 0, 0, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 } } },
+
+   { __DRI_IMAGE_FOURCC_XRGB8888, __DRI_IMAGE_COMPONENTS_RGB, 1,
+     { { 0, 0, 0, __DRI_IMAGE_FORMAT_XRGB8888, 4 }, } },
+
+   { __DRI_IMAGE_FOURCC_YUV410, __DRI_IMAGE_COMPONENTS_Y_U_V, 3,
+     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
+       { 1, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 },
+       { 2, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 } } },
+
+   { __DRI_IMAGE_FOURCC_YUV411, __DRI_IMAGE_COMPONENTS_Y_U_V, 3,
+     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
+       { 1, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 },
+       { 2, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
+
+   { __DRI_IMAGE_FOURCC_YUV420, __DRI_IMAGE_COMPONENTS_Y_U_V, 3,
+     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
+       { 1, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 },
+       { 2, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 } } },
+
+   { __DRI_IMAGE_FOURCC_YUV422, __DRI_IMAGE_COMPONENTS_Y_U_V, 3,
+     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
+       { 1, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 },
+       { 2, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
+
+   { __DRI_IMAGE_FOURCC_YUV444, __DRI_IMAGE_COMPONENTS_Y_U_V, 3,
+     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
+       { 1, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
+       { 2, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
+
+   { __DRI_IMAGE_FOURCC_NV12, __DRI_IMAGE_COMPONENTS_Y_UV, 2,
+     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
+       { 1, 1, 1, __DRI_IMAGE_FORMAT_GR88, 2 } } },
+
+   { __DRI_IMAGE_FOURCC_NV16, __DRI_IMAGE_COMPONENTS_Y_UV, 2,
+     { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
+       { 1, 1, 0, __DRI_IMAGE_FORMAT_GR88, 2 } } },
+
+   /* For YUYV buffers, we set up two overlapping DRI images and treat
+    * them as planar buffers in the compositors.  Plane 0 is GR88 and
+    * samples YU or YV pairs and places Y into the R component, while
+    * plane 1 is ARGB and samples YUYV clusters and places pairs and
+    * places U into the G component and V into A.  This lets the
+    * texture sampler interpolate the Y components correctly when
+    * sampling from plane 0, and interpolate U and V correctly when
+    * sampling from plane 1. */
+   { __DRI_IMAGE_FOURCC_YUYV, __DRI_IMAGE_COMPONENTS_Y_XUXV, 2,
+     { { 0, 0, 0, __DRI_IMAGE_FORMAT_GR88, 2 },
+       { 0, 1, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 } } }
+};
+
 static __DRIimage *
 intel_allocate_image(int dri_format, void *loaderPrivate)
 {
@@ -249,7 +302,7 @@ intel_create_image_from_name(__DRIscreen *screen,
 
     image = intel_allocate_image(format, loaderPrivate);
     if (image->format == MESA_FORMAT_NONE)
-       cpp = 0;
+       cpp = 1;
     else
        cpp = _mesa_get_format_bytes(image->format);
     image->region = intel_region_alloc_for_handle(intelScreen,
@@ -372,6 +425,11 @@ intel_query_image(__DRIimage *image, int attrib, int *value)
    case __DRI_IMAGE_ATTRIB_HEIGHT:
       *value = image->region->height;
       return true;
+   case __DRI_IMAGE_ATTRIB_COMPONENTS:
+      if (image->planar_format == NULL)
+         return false;
+      *value = image->planar_format->components;
+      return true;
   default:
       return false;
    }
@@ -393,11 +451,15 @@ intel_dup_image(__DRIimage *orig_image, void *loaderPrivate)
    }
 
    image->internal_format = orig_image->internal_format;
+   image->planar_format   = orig_image->planar_format;
    image->dri_format      = orig_image->dri_format;
    image->format          = orig_image->format;
    image->offset          = orig_image->offset;
    image->data            = loaderPrivate;
-   
+
+   memcpy(image->strides, orig_image->strides, sizeof(image->strides));
+   memcpy(image->offsets, orig_image->offsets, sizeof(image->offsets));
+
    return image;
 }
 
@@ -413,16 +475,72 @@ intel_validate_usage(__DRIimage *image, unsigned int use)
 }
 
 static __DRIimage *
-intel_create_sub_image(__DRIimage *parent,
-                       int width, int height, int dri_format,
-                       int offset, int pitch, void *loaderPrivate)
+intel_create_image_from_names(__DRIscreen *screen,
+                              int width, int height, int fourcc,
+                              int *names, int num_names,
+                              int *strides, int *offsets,
+                              void *loaderPrivate)
 {
+    struct intel_image_format *f = NULL;
     __DRIimage *image;
-    int cpp;
+    int i, index;
+
+    if (screen == NULL || names == NULL || num_names != 1)
+        return NULL;
+
+    for (i = 0; i < ARRAY_SIZE(intel_image_formats); i++) {
+        if (intel_image_formats[i].fourcc == fourcc) {
+           f = &intel_image_formats[i];
+        }
+    }
+
+    if (f == NULL)
+        return NULL;
+
+    image = intel_create_image_from_name(screen, width, height,
+                                         __DRI_IMAGE_FORMAT_NONE,
+                                         names[0], strides[0],
+                                         loaderPrivate);
+
+    if (image == NULL)
+        return NULL;
+
+    image->planar_format = f;
+    for (i = 0; i < f->nplanes; i++) {
+        index = f->planes[i].buffer_index;
+        image->offsets[index] = offsets[index];
+        image->strides[index] = strides[index];
+    }
+
+    return image;
+}
+
+static __DRIimage *
+intel_from_planar(__DRIimage *parent, int plane, void *loaderPrivate)
+{
+    int width, height, offset, stride, dri_format, cpp, index, pitch;
+    struct intel_image_format *f;
     uint32_t mask_x, mask_y;
+    __DRIimage *image;
+
+    if (parent == NULL || parent->planar_format == NULL)
+        return NULL;
+
+    f = parent->planar_format;
+
+    if (plane >= f->nplanes)
+        return NULL;
+
+    width = parent->region->width >> f->planes[plane].width_shift;
+    height = parent->region->height >> f->planes[plane].height_shift;
+    dri_format = f->planes[plane].dri_format;
+    index = f->planes[plane].buffer_index;
+    offset = parent->offsets[index];
+    stride = parent->strides[index];
 
     image = intel_allocate_image(dri_format, loaderPrivate);
-    cpp = _mesa_get_format_bytes(image->format);
+    cpp = _mesa_get_format_bytes(image->format); /* safe since no none format */
+    pitch = stride / cpp;
     if (offset + height * cpp * pitch > parent->region->bo->size) {
        _mesa_warning(NULL, "intel_create_sub_image: subimage out of bounds");
        FREE(image);
@@ -463,7 +581,8 @@ static struct __DRIimageExtensionRec intelImageExtension = {
     intel_query_image,
     intel_dup_image,
     intel_validate_usage,
-    intel_create_sub_image
+    intel_create_image_from_names,
+    intel_from_planar
 };
 
 static const __DRIextension *intelScreenExtensions[] = {