[Mesa-dev] [PATCH 06/12] st/va: colorspace conversion when image is yv12 and surface is nv12

[Boyuan Zhang]

Signed-off-by: Boyuan Zhang <boyuan.zh...@amd.com>
---
 src/gallium/state_trackers/va/image.c | 48 +++++++++++++++++++++++++++++------
 1 file changed, 40 insertions(+), 8 deletions(-)

diff --git a/src/gallium/state_trackers/va/image.c 
b/src/gallium/state_trackers/va/image.c
index 3c8cc9c..1f68169 100644
--- a/src/gallium/state_trackers/va/image.c
+++ b/src/gallium/state_trackers/va/image.c
@@ -499,7 +499,7 @@ vlVaPutImage(VADriverContextP ctx, VASurfaceID surface, 
VAImageID image,
    VAImage *vaimage;
    struct pipe_sampler_view **views;
    enum pipe_format format;
-   void *data[3];
+   uint8_t *data[3];
    unsigned pitches[3], i, j;
 
    if (!ctx)
@@ -539,7 +539,9 @@ vlVaPutImage(VADriverContextP ctx, VASurfaceID surface, 
VAImageID image,
       return VA_STATUS_ERROR_OPERATION_FAILED;
    }
 
-   if (format != surf->buffer->buffer_format) {
+   if ((format != surf->buffer->buffer_format) &&
+      ((format != PIPE_FORMAT_YV12) || (surf->buffer->buffer_format != 
PIPE_FORMAT_NV12)) &&
+      ((format != PIPE_FORMAT_IYUV) || (surf->buffer->buffer_format != 
PIPE_FORMAT_NV12))) {
       struct pipe_video_buffer *tmp_buf;
       struct pipe_video_buffer templat = surf->templat;
 
@@ -581,12 +583,42 @@ vlVaPutImage(VADriverContextP ctx, VASurfaceID surface, 
VAImageID image,
       unsigned width, height;
       if (!views[i]) continue;
       vlVaVideoSurfaceSize(surf, i, &width, &height);
-      for (j = 0; j < views[i]->texture->array_size; ++j) {
-         struct pipe_box dst_box = {0, 0, j, width, height, 1};
-         drv->pipe->transfer_inline_write(drv->pipe, views[i]->texture, 0,
-            PIPE_TRANSFER_WRITE, &dst_box,
-            data[i] + pitches[i] * j,
-            pitches[i] * views[i]->texture->array_size, 0);
+      if ((format == PIPE_FORMAT_YV12) || (format == PIPE_FORMAT_IYUV) &&
+         (surf->buffer->buffer_format == PIPE_FORMAT_NV12) && (i == 1)) {
+         struct pipe_transfer *transfer = NULL;
+         uint8_t *map = NULL;
+         struct pipe_box dst_box_1 = {0, 0, 0, width, height, 1};
+         map = drv->pipe->transfer_map(drv->pipe,
+                                       views[i]->texture,
+                                       0,
+                                       PIPE_TRANSFER_DISCARD_RANGE,
+                                       &dst_box_1, &transfer);
+         if (map == NULL)
+            return VA_STATUS_ERROR_OPERATION_FAILED;
+
+         bool odd = false;
+         for (unsigned int k = 0; k < ((vaimage->offsets[1])/2) ; k++){
+            if (odd == false) {
+               map[k] = data[i][k/2];
+               odd = true;
+            }
+            else {
+               map[k] = data[i+1][k/2];
+               odd = false;
+            }
+         }
+         pipe_transfer_unmap(drv->pipe, transfer);
+         pipe_mutex_unlock(drv->mutex);
+         return VA_STATUS_SUCCESS;
+      }
+      else {
+         for (j = 0; j < views[i]->texture->array_size; ++j) {
+            struct pipe_box dst_box = {0, 0, j, width, height, 1};
+            drv->pipe->transfer_inline_write(drv->pipe, views[i]->texture, 0,
+               PIPE_TRANSFER_WRITE, &dst_box,
+               data[i] + pitches[i] * j,
+               pitches[i] * views[i]->texture->array_size, 0);
+         }
       }
    }
    pipe_mutex_unlock(drv->mutex);
-- 
2.7.4

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