Mesa (master): st/vdpau: implement vlVdpOutputSurfaceQueryCapabilities

[Christian König]

Module: Mesa
Branch: master
Commit: 97349dfa798929e99a2b9fac3cf7192457de5459
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=97349dfa798929e99a2b9fac3cf7192457de5459

Author: Christian König <deathsimple at vodafone.de>
Date:   Thu Feb  2 14:02:52 2012 +0100

st/vdpau: implement vlVdpOutputSurfaceQueryCapabilities

Fixing some problems with gstreamer.

Signed-off-by: Christian König <deathsimple at vodafone.de>
Reviewed-by: Maarten Lankhorst <m.b.lankhorst at gmail.com>

---

 src/gallium/state_trackers/vdpau/query.c |   38 ++++++++++++++++++++++++++++-
 1 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/src/gallium/state_trackers/vdpau/query.c b/src/gallium/state_trackers/vdpau/query.c
index 18ca0b1..32d406b 100644
--- a/src/gallium/state_trackers/vdpau/query.c
+++ b/src/gallium/state_trackers/vdpau/query.c
@@ -188,12 +188,46 @@ VdpStatus
 vlVdpOutputSurfaceQueryCapabilities(VdpDevice device, VdpRGBAFormat surface_rgba_format,
                                     VdpBool *is_supported, uint32_t *max_width, uint32_t *max_height)
 {
+   vlVdpDevice *dev;
+   struct pipe_screen *pscreen;
+   enum pipe_format format;
+
+   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Querying VdpOutputSurface capabilities\n");
+
+   dev = vlGetDataHTAB(device);
+   if (!dev)
+      return VDP_STATUS_INVALID_HANDLE;
+
+   pscreen = dev->vscreen->pscreen;
+   if (!pscreen)
+      return VDP_STATUS_RESOURCES;
+
+   format = FormatRGBAToPipe(surface_rgba_format);
+   if (format == PIPE_FORMAT_NONE || format == PIPE_FORMAT_A8_UNORM)
+      return VDP_STATUS_INVALID_RGBA_FORMAT;
+
    if (!(is_supported && max_width && max_height))
       return VDP_STATUS_INVALID_POINTER;
 
-   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Querying VdpOutputSurface capabilities\n");
+   *is_supported = pscreen->is_format_supported
+   (
+      pscreen, format, PIPE_TEXTURE_3D, 1,
+      PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET
+   );
+   if (*is_supported) {
+      uint32_t max_2d_texture_level = pscreen->get_param(
+         pscreen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
 
-   return VDP_STATUS_NO_IMPLEMENTATION;
+      if (!max_2d_texture_level)
+         return VDP_STATUS_ERROR;
+
+      *max_width = *max_height = pow(2, max_2d_texture_level - 1);
+   } else {
+      *max_width = 0;
+      *max_height = 0;
+   }
+
+   return VDP_STATUS_OK;
 }
 
 /**