st/va: add colospace conversion through Video Post Processing

Add support for VPP in the following functions:
vlVaCreateContext
vlVaDestroyContext
vlVaBeginPicture
vlVaRenderPicture
vlVaEndPicture

Add support for VAProcFilterNone in:
vlVaQueryVideoProcFilters
vlVaQueryVideoProcFilterCaps
vlVaQueryVideoProcPipelineCaps

Add handleVAProcPipelineParameterBufferType helper.

One application is:
VASurfaceNV12 -> gstvaapipostproc -> VASurfaceRGBA

Signed-off-by: Julien Isorce <j.isorce@samsung.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

4 files changed, 259 insertions, 52 deletions

diff --git a/src/gallium/state_trackers/va/context.c b/src/gallium/state_trackers/va/context.c
index 9cc402e56ae..a107cc431d9 100644
--- a/src/gallium/state_trackers/va/context.c
+++ b/src/gallium/state_trackers/va/context.c
@@ -87,6 +87,14 @@ static struct VADriverVTable vtable =
    &vlVaQuerySurfaceAttributes
 };
 
+static struct VADriverVTableVPP vtable_vpp =
+{
+   1,
+   &vlVaQueryVideoProcFilters,
+   &vlVaQueryVideoProcFilterCaps,
+   &vlVaQueryVideoProcPipelineCaps
+};
+
 PUBLIC VAStatus
 VA_DRIVER_INIT_FUNC(VADriverContextP ctx)
 {
@@ -122,6 +130,7 @@ VA_DRIVER_INIT_FUNC(VADriverContextP ctx)
    ctx->version_major = 0;
    ctx->version_minor = 1;
    *ctx->vtable = vtable;
+   *ctx->vtable_vpp = vtable_vpp;
    ctx->max_profiles = PIPE_VIDEO_PROFILE_MPEG4_AVC_HIGH - PIPE_VIDEO_PROFILE_UNKNOWN;
    ctx->max_entrypoints = 1;
    ctx->max_attributes = 1;
@@ -151,11 +160,15 @@ vlVaCreateContext(VADriverContextP ctx, VAConfigID config_id, int picture_width,
    struct pipe_video_codec templat = {};
    vlVaDriver *drv;
    vlVaContext *context;
+   int is_vpp;
 
    if (!ctx)
       return VA_STATUS_ERROR_INVALID_CONTEXT;
 
-   if (!(picture_width && picture_height))
+   is_vpp = config_id == PIPE_VIDEO_PROFILE_UNKNOWN && !picture_width &&
+            !picture_height && !flag && !render_targets && !num_render_targets;
+
+   if (!(picture_width && picture_height) && !is_vpp)
       return VA_STATUS_ERROR_INVALID_IMAGE_FORMAT;
 
    drv = VL_VA_DRIVER(ctx);
@@ -163,52 +176,60 @@ vlVaCreateContext(VADriverContextP ctx, VAConfigID config_id, int picture_width,
    if (!context)
       return VA_STATUS_ERROR_ALLOCATION_FAILED;
 
-   templat.profile = config_id;
-   templat.entrypoint = PIPE_VIDEO_ENTRYPOINT_BITSTREAM;
-   templat.chroma_format = PIPE_VIDEO_CHROMA_FORMAT_420;
-   templat.width = picture_width;
-   templat.height = picture_height;
-   templat.max_references = num_render_targets;
-   templat.expect_chunked_decode = true;
-
-   if (u_reduce_video_profile(templat.profile) ==
-       PIPE_VIDEO_FORMAT_MPEG4_AVC)
-      templat.level = u_get_h264_level(templat.width, templat.height,
-                            &templat.max_references);
-
-   context->decoder = drv->pipe->create_video_codec(drv->pipe, &templat);
-   if (!context->decoder) {
-      FREE(context);
-      return VA_STATUS_ERROR_ALLOCATION_FAILED;
-   }
-
-   if (u_reduce_video_profile(context->decoder->profile) ==
-         PIPE_VIDEO_FORMAT_MPEG4_AVC) {
-      context->desc.h264.pps = CALLOC_STRUCT(pipe_h264_pps);
-      if (!context->desc.h264.pps) {
+   if (is_vpp) {
+      context->decoder = NULL;
+      if (!drv->compositor.upload) {
          FREE(context);
-         return VA_STATUS_ERROR_ALLOCATION_FAILED;
+         return VA_STATUS_ERROR_INVALID_CONTEXT;
       }
-      context->desc.h264.pps->sps = CALLOC_STRUCT(pipe_h264_sps);
-      if (!context->desc.h264.pps->sps) {
-         FREE(context->desc.h264.pps);
+   } else {
+      templat.profile = config_id;
+      templat.entrypoint = PIPE_VIDEO_ENTRYPOINT_BITSTREAM;
+      templat.chroma_format = PIPE_VIDEO_CHROMA_FORMAT_420;
+      templat.width = picture_width;
+      templat.height = picture_height;
+      templat.max_references = num_render_targets;
+      templat.expect_chunked_decode = true;
+
+      if (u_reduce_video_profile(templat.profile) ==
+        PIPE_VIDEO_FORMAT_MPEG4_AVC)
+        templat.level = u_get_h264_level(templat.width, templat.height,
+                             &templat.max_references);
+
+      context->decoder = drv->pipe->create_video_codec(drv->pipe, &templat);
+      if (!context->decoder) {
          FREE(context);
          return VA_STATUS_ERROR_ALLOCATION_FAILED;
       }
-   }
 
-   if (u_reduce_video_profile(context->decoder->profile) ==
-         PIPE_VIDEO_FORMAT_HEVC) {
-      context->desc.h265.pps = CALLOC_STRUCT(pipe_h265_pps);
-      if (!context->desc.h265.pps) {
-         FREE(context);
-         return VA_STATUS_ERROR_ALLOCATION_FAILED;
+      if (u_reduce_video_profile(context->decoder->profile) ==
+         PIPE_VIDEO_FORMAT_MPEG4_AVC) {
+         context->desc.h264.pps = CALLOC_STRUCT(pipe_h264_pps);
+         if (!context->desc.h264.pps) {
+            FREE(context);
+            return VA_STATUS_ERROR_ALLOCATION_FAILED;
+         }
+         context->desc.h264.pps->sps = CALLOC_STRUCT(pipe_h264_sps);
+         if (!context->desc.h264.pps->sps) {
+            FREE(context->desc.h264.pps);
+            FREE(context);
+            return VA_STATUS_ERROR_ALLOCATION_FAILED;
+         }
       }
-      context->desc.h265.pps->sps = CALLOC_STRUCT(pipe_h265_sps);
-      if (!context->desc.h265.pps->sps) {
-         FREE(context->desc.h265.pps);
-         FREE(context);
-         return VA_STATUS_ERROR_ALLOCATION_FAILED;
+
+      if (u_reduce_video_profile(context->decoder->profile) ==
+            PIPE_VIDEO_FORMAT_HEVC) {
+         context->desc.h265.pps = CALLOC_STRUCT(pipe_h265_pps);
+         if (!context->desc.h265.pps) {
+            FREE(context);
+            return VA_STATUS_ERROR_ALLOCATION_FAILED;
+         }
+         context->desc.h265.pps->sps = CALLOC_STRUCT(pipe_h265_sps);
+         if (!context->desc.h265.pps->sps) {
+            FREE(context->desc.h265.pps);
+            FREE(context);
+            return VA_STATUS_ERROR_ALLOCATION_FAILED;
+         }
       }
    }
 
@@ -229,17 +250,20 @@ vlVaDestroyContext(VADriverContextP ctx, VAContextID context_id)
 
    drv = VL_VA_DRIVER(ctx);
    context = handle_table_get(drv->htab, context_id);
-   if (u_reduce_video_profile(context->decoder->profile) ==
-         PIPE_VIDEO_FORMAT_MPEG4_AVC) {
-      FREE(context->desc.h264.pps->sps);
-      FREE(context->desc.h264.pps);
-   }
-   if (u_reduce_video_profile(context->decoder->profile) ==
-         PIPE_VIDEO_FORMAT_HEVC) {
-      FREE(context->desc.h265.pps->sps);
-      FREE(context->desc.h265.pps);
+
+   if (context->decoder) {
+      if (u_reduce_video_profile(context->decoder->profile) ==
+            PIPE_VIDEO_FORMAT_MPEG4_AVC) {
+         FREE(context->desc.h264.pps->sps);
+         FREE(context->desc.h264.pps);
+      }
+      if (u_reduce_video_profile(context->decoder->profile) ==
+            PIPE_VIDEO_FORMAT_HEVC) {
+         FREE(context->desc.h265.pps->sps);
+         FREE(context->desc.h265.pps);
+      }
+      context->decoder->destroy(context->decoder);
    }
-   context->decoder->destroy(context->decoder);
    FREE(context);
    handle_table_remove(drv->htab, context_id);
 
diff --git a/src/gallium/state_trackers/va/picture.c b/src/gallium/state_trackers/va/picture.c
index 9cd496f6417..e850689005d 100644
--- a/src/gallium/state_trackers/va/picture.c
+++ b/src/gallium/state_trackers/va/picture.c
@@ -32,6 +32,7 @@
 #include "util/u_video.h"
 
 #include "vl/vl_vlc.h"
+#include "vl/vl_winsys.h"
 
 #include "va_private.h"
 
@@ -58,6 +59,16 @@ vlVaBeginPicture(VADriverContextP ctx, VAContextID context_id, VASurfaceID rende
       return VA_STATUS_ERROR_INVALID_SURFACE;
 
    context->target = surf->buffer;
+
+   if (!context->decoder) {
+      /* VPP */
+      if ((context->target->buffer_format != PIPE_FORMAT_B8G8R8A8_UNORM  &&
+           context->target->buffer_format != PIPE_FORMAT_R8G8B8A8_UNORM) ||
+           context->target->interlaced)
+          return VA_STATUS_ERROR_UNIMPLEMENTED;
+      return VA_STATUS_SUCCESS;
+   }
+
    context->decoder->begin_frame(context->decoder, context->target, &context->desc.base);
 
    return VA_STATUS_SUCCESS;
@@ -703,11 +714,71 @@ handleVASliceDataBufferType(vlVaContext *context, vlVaBuffer *buf)
       num_buffers, (const void * const*)buffers, sizes);
 }
 
+static VAStatus
+handleVAProcPipelineParameterBufferType(vlVaDriver *drv, vlVaContext *context, vlVaBuffer *buf)
+{
+    struct u_rect src_rect;
+    struct u_rect dst_rect;
+    struct u_rect *dirty_area;
+    vlVaSurface *src_surface;
+    VAProcPipelineParameterBuffer *pipeline_param;
+    struct pipe_surface **surfaces;
+    struct pipe_screen *screen;
+    struct pipe_surface *psurf;
+
+    if (!drv || !context)
+       return VA_STATUS_ERROR_INVALID_CONTEXT;
+
+    if (!buf || !buf->data)
+       return VA_STATUS_ERROR_INVALID_BUFFER;
+
+    if (!context->target)
+        return VA_STATUS_ERROR_INVALID_SURFACE;
+
+    pipeline_param = (VAProcPipelineParameterBuffer *)buf->data;
+
+    src_surface = handle_table_get(drv->htab, pipeline_param->surface);
+    if (!src_surface || !src_surface->buffer)
+       return VA_STATUS_ERROR_INVALID_SURFACE;
+
+    surfaces = context->target->get_surfaces(context->target);
+
+    if (!surfaces || !surfaces[0])
+        return VA_STATUS_ERROR_INVALID_SURFACE;
+
+    screen = drv->pipe->screen;
+
+    psurf = surfaces[0];
+
+    src_rect.x0 = pipeline_param->surface_region->x;
+    src_rect.y0 = pipeline_param->surface_region->y;
+    src_rect.x1 = pipeline_param->surface_region->x + pipeline_param->surface_region->width;
+    src_rect.y1 = pipeline_param->surface_region->y + pipeline_param->surface_region->height;
+
+    dst_rect.x0 = pipeline_param->output_region->x;
+    dst_rect.y0 = pipeline_param->output_region->y;
+    dst_rect.x1 = pipeline_param->output_region->x + pipeline_param->output_region->width;
+    dst_rect.y1 = pipeline_param->output_region->y + pipeline_param->output_region->height;
+
+    dirty_area = vl_screen_get_dirty_area(drv->vscreen);
+
+    vl_compositor_clear_layers(&drv->cstate);
+    vl_compositor_set_buffer_layer(&drv->cstate, &drv->compositor, 0, src_surface->buffer, &src_rect, NULL, VL_COMPOSITOR_WEAVE);
+    vl_compositor_set_layer_dst_area(&drv->cstate, 0, &dst_rect);
+    vl_compositor_render(&drv->cstate, &drv->compositor, psurf, dirty_area, true);
+
+    screen->fence_reference(screen, &src_surface->fence, NULL);
+    drv->pipe->flush(drv->pipe, &src_surface->fence, 0);
+
+    return VA_STATUS_SUCCESS;
+}
+
 VAStatus
 vlVaRenderPicture(VADriverContextP ctx, VAContextID context_id, VABufferID *buffers, int num_buffers)
 {
    vlVaDriver *drv;
    vlVaContext *context;
+   VAStatus vaStatus = VA_STATUS_SUCCESS;
 
    unsigned i;
 
@@ -743,13 +814,16 @@ vlVaRenderPicture(VADriverContextP ctx, VAContextID context_id, VABufferID *buff
       case VASliceDataBufferType:
          handleVASliceDataBufferType(context, buf);
          break;
+      case VAProcPipelineParameterBufferType:
+         vaStatus = handleVAProcPipelineParameterBufferType(drv, context, buf);
+         break;
 
       default:
          break;
       }
    }
 
-   return VA_STATUS_SUCCESS;
+   return vaStatus;
 }
 
 VAStatus
@@ -769,6 +843,11 @@ vlVaEndPicture(VADriverContextP ctx, VAContextID context_id)
    if (!context)
       return VA_STATUS_ERROR_INVALID_CONTEXT;
 
+   if (!context->decoder) {
+      /* VPP */
+      return VA_STATUS_SUCCESS;
+   }
+
    context->mpeg4.frame_num++;
    context->decoder->end_frame(context->decoder, context->target, &context->desc.base);
 
diff --git a/src/gallium/state_trackers/va/surface.c b/src/gallium/state_trackers/va/surface.c
index 12112d29d1a..8f406e09990 100644
--- a/src/gallium/state_trackers/va/surface.c
+++ b/src/gallium/state_trackers/va/surface.c
@@ -348,7 +348,8 @@ vlVaQuerySurfaceAttributes(VADriverContextP ctx, VAConfigID config,
     i = 0;
 
     if (config == PIPE_VIDEO_PROFILE_UNKNOWN) {
-       /* Assume VAEntrypointVideoProc for now. */
+       /* vlVaCreateConfig returns PIPE_VIDEO_PROFILE_UNKNOWN
+          only for VAEntrypointVideoProc. */
        attribs[i].type = VASurfaceAttribPixelFormat;
        attribs[i].value.type = VAGenericValueTypeInteger;
        attribs[i].flags = VA_SURFACE_ATTRIB_GETTABLE | VA_SURFACE_ATTRIB_SETTABLE;
@@ -634,3 +635,98 @@ no_res:
 
    return VA_STATUS_ERROR_ALLOCATION_FAILED;
 }
+
+VAStatus
+vlVaQueryVideoProcFilters(VADriverContextP ctx, VAContextID context,
+                          VAProcFilterType *filters, unsigned int *num_filters)
+{
+   unsigned int num = 0;
+
+   if (!ctx)
+      return VA_STATUS_ERROR_INVALID_CONTEXT;
+
+   if (!num_filters || !filters)
+      return VA_STATUS_ERROR_INVALID_PARAMETER;
+
+   filters[num++] = VAProcFilterNone;
+
+   *num_filters = num;
+
+   return VA_STATUS_SUCCESS;
+}
+
+VAStatus
+vlVaQueryVideoProcFilterCaps(VADriverContextP ctx, VAContextID context,
+                             VAProcFilterType type, void *filter_caps,
+                             unsigned int *num_filter_caps)
+{
+   unsigned int i;
+
+   if (!ctx)
+      return VA_STATUS_ERROR_INVALID_CONTEXT;
+
+   if (!filter_caps || !num_filter_caps)
+      return VA_STATUS_ERROR_INVALID_PARAMETER;
+
+   i = 0;
+
+   switch (type) {
+   case VAProcFilterNone:
+      break;
+   case VAProcFilterNoiseReduction:
+   case VAProcFilterDeinterlacing:
+   case VAProcFilterSharpening:
+   case VAProcFilterColorBalance:
+   case VAProcFilterSkinToneEnhancement:
+      return VA_STATUS_ERROR_UNIMPLEMENTED;
+   default:
+      assert(0);
+   }
+
+   *num_filter_caps = i;
+
+   return VA_STATUS_SUCCESS;
+}
+
+static VAProcColorStandardType vpp_input_color_standards[VAProcColorStandardCount] = {
+   VAProcColorStandardBT601
+};
+
+static VAProcColorStandardType vpp_output_color_standards[VAProcColorStandardCount] = {
+   VAProcColorStandardBT601
+};
+
+VAStatus
+vlVaQueryVideoProcPipelineCaps(VADriverContextP ctx, VAContextID context,
+                               VABufferID *filters, unsigned int num_filters,
+                               VAProcPipelineCaps *pipeline_cap)
+{
+   unsigned int i = 0;
+
+   if (!ctx)
+      return VA_STATUS_ERROR_INVALID_CONTEXT;
+
+   if (!pipeline_cap)
+   return VA_STATUS_ERROR_INVALID_PARAMETER;
+
+   if (num_filters && !filters)
+      return VA_STATUS_ERROR_INVALID_PARAMETER;
+
+   pipeline_cap->pipeline_flags = 0;
+   pipeline_cap->filter_flags = 0;
+   pipeline_cap->num_forward_references = 0;
+   pipeline_cap->num_backward_references = 0;
+   pipeline_cap->num_input_color_standards = 1;
+   pipeline_cap->input_color_standards = vpp_input_color_standards;
+   pipeline_cap->num_output_color_standards = 1;
+   pipeline_cap->output_color_standards = vpp_output_color_standards;
+
+   for (i = 0; i < num_filters; i++) {
+      vlVaBuffer *buf = handle_table_get(VL_VA_DRIVER(ctx)->htab, filters[i]);
+
+      if (!buf || buf->type >= VABufferTypeMax)
+         return VA_STATUS_ERROR_INVALID_BUFFER;
+   }
+
+   return VA_STATUS_SUCCESS;
+}
diff --git a/src/gallium/state_trackers/va/va_private.h b/src/gallium/state_trackers/va/va_private.h
index 1fad96a32e9..1e37740a892 100644
--- a/src/gallium/state_trackers/va/va_private.h
+++ b/src/gallium/state_trackers/va/va_private.h
@@ -33,6 +33,7 @@
 
 #include <va/va.h>
 #include <va/va_backend.h>
+#include <va/va_backend_vpp.h>
 
 #include "pipe/p_video_enums.h"
 #include "pipe/p_video_codec.h"
@@ -318,4 +319,11 @@ VAStatus vlVaCreateSurfaces2(VADriverContextP ctx, unsigned int format, unsigned
                              unsigned int num_attribs);
 VAStatus vlVaQuerySurfaceAttributes(VADriverContextP ctx, VAConfigID config, VASurfaceAttrib *attrib_list,
                                     unsigned int *num_attribs);
+
+VAStatus vlVaQueryVideoProcFilters(VADriverContextP ctx, VAContextID context, VAProcFilterType *filters,
+                                   unsigned int *num_filters);
+VAStatus vlVaQueryVideoProcFilterCaps(VADriverContextP ctx, VAContextID context, VAProcFilterType type,
+                                      void *filter_caps, unsigned int *num_filter_caps);
+VAStatus vlVaQueryVideoProcPipelineCaps(VADriverContextP ctx, VAContextID context, VABufferID *filters,
+                                        unsigned int num_filters, VAProcPipelineCaps *pipeline_cap);
 #endif //VA_PRIVATE_H