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st/vdpau: clear video surface at least once

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So if anything goes wrong we won't display a random image.

v2: flush before using the surface with the decoder.

Signed-off-by: Christian König <deathsimple@vodafone.de>
This commit is contained in:
Christian König 2012-03-24 13:11:25 +01:00
parent 9f777699ed
commit 7f6af49092
3 changed files with 31 additions and 0 deletions
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1
src/gallium/state_trackers/vdpau/decode.c
View file

@ -484,6 +484,7 @@ vlVdpDecoderRender(VdpDecoder decoder,
pipe_mutex_unlock(vlsurf->device->mutex);
return VDP_STATUS_NO_IMPLEMENTATION;
}
vlVdpVideoSurfaceClear(vlsurf);
}
for (i = 0; i < bitstream_buffer_count; ++i) {

29
src/gallium/state_trackers/vdpau/surface.c
View file

@ -33,6 +33,7 @@
#include "util/u_memory.h"
#include "util/u_debug.h"
#include "util/u_rect.h"
#include "vl/vl_defines.h"
#include "vdpau_private.h"
@ -91,6 +92,7 @@ vlVdpVideoSurfaceCreate(VdpDevice device, VdpChromaType chroma_type,
PIPE_VIDEO_CAP_PREFERS_INTERLACED
);
p_surf->video_buffer = pipe->create_video_buffer(pipe, &p_surf->templat);
vlVdpVideoSurfaceClear(p_surf);
pipe_mutex_unlock(dev->mutex);
*surface = vlAddDataHTAB(p_surf);
@ -282,6 +284,7 @@ vlVdpVideoSurfacePutBitsYCbCr(VdpVideoSurface surface,
pipe_mutex_unlock(p_surf->device->mutex);
return VDP_STATUS_NO_IMPLEMENTATION;
}
vlVdpVideoSurfaceClear(p_surf);
}
sampler_views = p_surf->video_buffer->get_sampler_view_planes(p_surf->video_buffer);
@ -311,3 +314,29 @@ vlVdpVideoSurfacePutBitsYCbCr(VdpVideoSurface surface,
return VDP_STATUS_OK;
}
/**
* Helper function to initially clear the VideoSurface after (re-)creation
*/
void
vlVdpVideoSurfaceClear(vlVdpSurface *vlsurf)
{
struct pipe_context *pipe = vlsurf->device->context;
struct pipe_surface **surfaces;
unsigned i;
if (!vlsurf->video_buffer)
return;
surfaces = vlsurf->video_buffer->get_surfaces(vlsurf->video_buffer);
for (i = 0; i < VL_MAX_SURFACES; ++i) {
union pipe_color_union black = {};
if (!surfaces[i])
continue;
pipe->clear_render_target(pipe, surfaces[i], &black, 0, 0,
surfaces[i]->width, surfaces[i]->height);
}
pipe->flush(pipe, NULL);
}

1
src/gallium/state_trackers/vdpau/vdpau_private.h
View file

@ -435,6 +435,7 @@ VdpVideoSurfaceDestroy vlVdpVideoSurfaceDestroy;
VdpVideoSurfaceGetParameters vlVdpVideoSurfaceGetParameters;
VdpVideoSurfaceGetBitsYCbCr vlVdpVideoSurfaceGetBitsYCbCr;
VdpVideoSurfacePutBitsYCbCr vlVdpVideoSurfacePutBitsYCbCr;
void vlVdpVideoSurfaceClear(vlVdpSurface *vlsurf);
VdpDecoderCreate vlVdpDecoderCreate;
VdpDecoderDestroy vlVdpDecoderDestroy;
VdpDecoderGetParameters vlVdpDecoderGetParameters;