implement NV_vdpau_interop v7

v2: Actually implement interop between the gallium
    state tracker and the VDPAU backend.

v3: Make it also available in non legacy contexts,
    fix video buffer sharing.

v4: deny interop if we don't have the same screen object

v5: rebased on upstream changes

v6: implemented VDPAUGetSurfaceivNV, improved error handling,
    unregister all surfaces in VDPAUFiniNV

v7: squash merge with Mareks changes

Signed-off-by: Christian König <[email protected]>

1 files changed, 181 insertions, 0 deletions

diff --git a/src/mesa/state_tracker/st_vdpau.c b/src/mesa/state_tracker/st_vdpau.c
new file mode 100644
index 00000000000..9b165ee3903
--- /dev/null
+++ b/src/mesa/state_tracker/st_vdpau.c
@@ -0,0 +1,181 @@
+/**************************************************************************
+ *
+ * Copyright 2013 Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/*
+ * Authors:
+ *      Christian König <[email protected]>
+ *
+ */
+
+#include "main/texobj.h"
+#include "main/teximage.h"
+#include "main/errors.h"
+#include "program/prog_instruction.h"
+
+#include "pipe/p_state.h"
+#include "pipe/p_video_codec.h"
+
+#include "state_tracker/vdpau_interop.h"
+
+#include "util/u_inlines.h"
+
+#include "st_vdpau.h"
+#include "st_context.h"
+#include "st_texture.h"
+#include "st_format.h"
+
+static void
+st_vdpau_map_surface(struct gl_context *ctx, GLenum target, GLenum access,
+                     GLboolean output, struct gl_texture_object *texObj,
+                     struct gl_texture_image *texImage,
+                     const GLvoid *vdpSurface, GLuint index)
+{
+   int (*getProcAddr)(uint32_t device, uint32_t id, void **ptr);
+   uint32_t device = (uintptr_t)ctx->vdpDevice;
+
+   struct st_context *st = st_context(ctx);
+   struct st_texture_object *stObj = st_texture_object(texObj);
+   struct st_texture_image *stImage = st_texture_image(texImage);
+ 
+   struct pipe_resource *res;
+   struct pipe_sampler_view *sv, templ;
+   gl_format texFormat;
+
+   getProcAddr = ctx->vdpGetProcAddress;
+   if (output) {
+      VdpOutputSurfaceGallium *f;
+      
+      if (getProcAddr(device, VDP_FUNC_ID_OUTPUT_SURFACE_GALLIUM, (void**)&f)) {
+         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
+         return;
+      }
+
+      res = f((uintptr_t)vdpSurface);
+
+      if (!res) {
+         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
+         return;
+      }
+
+   } else {
+      VdpVideoSurfaceGallium *f;
+
+      struct pipe_video_buffer *buffer;
+      struct pipe_sampler_view **samplers;
+
+      if (getProcAddr(device, VDP_FUNC_ID_VIDEO_SURFACE_GALLIUM, (void**)&f)) {
+         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
+         return;
+      }
+
+      buffer = f((uintptr_t)vdpSurface);
+      if (!buffer) {
+         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
+         return;
+      }
+
+      samplers = buffer->get_sampler_view_planes(buffer);
+      if (!samplers) {
+         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
+         return;
+      }
+
+      sv = samplers[index >> 1];
+      if (!sv) {
+         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
+         return;
+      }
+
+      res = sv->texture;
+   }
+
+   if (!res) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
+      return;
+   }
+
+   /* do we have different screen objects ? */
+   if (res->screen != st->pipe->screen) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
+      return;
+   }
+
+   /* switch to surface based */
+   if (!stObj->surface_based) {
+      _mesa_clear_texture_object(ctx, texObj);
+      stObj->surface_based = GL_TRUE;
+   }
+
+   texFormat = st_pipe_format_to_mesa_format(res->format);
+
+   _mesa_init_teximage_fields(ctx, texImage,
+                              res->width0, res->height0, 1, 0, GL_RGBA,
+                              texFormat);
+
+   pipe_resource_reference(&stObj->pt, res);
+   pipe_sampler_view_reference(&stObj->sampler_view, NULL);
+   pipe_resource_reference(&stImage->pt, res);
+
+   u_sampler_view_default_template(&templ, res, res->format);
+   templ.u.tex.first_layer = index & 1;
+   templ.u.tex.last_layer = index & 1;
+   templ.swizzle_r = GET_SWZ(stObj->base._Swizzle, 0);
+   templ.swizzle_g = GET_SWZ(stObj->base._Swizzle, 1);
+   templ.swizzle_b = GET_SWZ(stObj->base._Swizzle, 2);
+   templ.swizzle_a = GET_SWZ(stObj->base._Swizzle, 3);
+   stObj->sampler_view = st->pipe->create_sampler_view(st->pipe, res, &templ);
+
+   stObj->width0 = res->width0;
+   stObj->height0 = res->height0;
+   stObj->depth0 = 1;
+   stObj->surface_format = res->format;
+
+   _mesa_dirty_texobj(ctx, texObj);
+}
+
+static void
+st_vdpau_unmap_surface(struct gl_context *ctx, GLenum target, GLenum access,
+                       GLboolean output, struct gl_texture_object *texObj,
+                       struct gl_texture_image *texImage,
+                       const GLvoid *vdpSurface, GLuint index)
+{
+   struct st_texture_object *stObj = st_texture_object(texObj);
+   struct st_texture_image *stImage = st_texture_image(texImage);
+
+   pipe_resource_reference(&stObj->pt, NULL);
+   pipe_sampler_view_reference(&stObj->sampler_view, NULL);
+   pipe_resource_reference(&stImage->pt, NULL);
+
+   _mesa_dirty_texobj(ctx, texObj);
+}
+
+void
+st_init_vdpau_functions(struct dd_function_table *functions)
+{
+   functions->VDPAUMapSurface = st_vdpau_map_surface;
+   functions->VDPAUUnmapSurface = st_vdpau_unmap_surface;
+}