Mesa (master): g3dvl: Init/clean pipe fully when a shader-based decoder isn 't used.

[Younes Manton]

Module: Mesa
Branch: master
Commit: 8082816e27a0ee376e679c4d81ff8a3f0611ea9e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=8082816e27a0ee376e679c4d81ff8a3f0611ea9e

Author: Younes Manton <younes.m at gmail.com>
Date:   Wed Jul 20 13:43:24 2011 -0400

g3dvl: Init/clean pipe fully when a shader-based decoder isn't used.

Fixes VDPAU CSC-only mode.

---

 src/gallium/auxiliary/vl/vl_compositor.c |   25 +++++++++++++++++++++++++
 src/gallium/auxiliary/vl/vl_compositor.h |    1 +
 2 files changed, 26 insertions(+), 0 deletions(-)

diff --git a/src/gallium/auxiliary/vl/vl_compositor.c b/src/gallium/auxiliary/vl/vl_compositor.c
index 3bd4af2..faca96d 100644
--- a/src/gallium/auxiliary/vl/vl_compositor.c
+++ b/src/gallium/auxiliary/vl/vl_compositor.c
@@ -231,6 +231,8 @@ init_pipe_state(struct vl_compositor *c)
    struct pipe_rasterizer_state rast;
    struct pipe_sampler_state sampler;
    struct pipe_blend_state blend;
+   struct pipe_depth_stencil_alpha_state dsa;
+   unsigned i;
 
    assert(c);
 
@@ -289,6 +291,24 @@ init_pipe_state(struct vl_compositor *c)
 
    c->rast = c->pipe->create_rasterizer_state(c->pipe, &rast);
 
+   memset(&dsa, 0, sizeof dsa);
+   dsa.depth.enabled = 0;
+   dsa.depth.writemask = 0;
+   dsa.depth.func = PIPE_FUNC_ALWAYS;
+   for (i = 0; i < 2; ++i) {
+      dsa.stencil[i].enabled = 0;
+      dsa.stencil[i].func = PIPE_FUNC_ALWAYS;
+      dsa.stencil[i].fail_op = PIPE_STENCIL_OP_KEEP;
+      dsa.stencil[i].zpass_op = PIPE_STENCIL_OP_KEEP;
+      dsa.stencil[i].zfail_op = PIPE_STENCIL_OP_KEEP;
+      dsa.stencil[i].valuemask = 0;
+      dsa.stencil[i].writemask = 0;
+   }
+   dsa.alpha.enabled = 0;
+   dsa.alpha.func = PIPE_FUNC_ALWAYS;
+   dsa.alpha.ref_value = 0;
+   c->dsa = c->pipe->create_depth_stencil_alpha_state(c->pipe, &dsa);
+   c->pipe->bind_depth_stencil_alpha_state(c->pipe, c->dsa);
    return true;
 }
 
@@ -296,6 +316,11 @@ static void cleanup_pipe_state(struct vl_compositor *c)
 {
    assert(c);
 
+   /* Asserted in softpipe_delete_fs_state() for some reason */
+   c->pipe->bind_vs_state(c->pipe, NULL);
+   c->pipe->bind_fs_state(c->pipe, NULL);
+
+   c->pipe->delete_depth_stencil_alpha_state(c->pipe, c->dsa);
    c->pipe->delete_sampler_state(c->pipe, c->sampler_linear);
    c->pipe->delete_sampler_state(c->pipe, c->sampler_nearest);
    c->pipe->delete_blend_state(c->pipe, c->blend);
diff --git a/src/gallium/auxiliary/vl/vl_compositor.h b/src/gallium/auxiliary/vl/vl_compositor.h
index 87ad39b..0a9a741 100644
--- a/src/gallium/auxiliary/vl/vl_compositor.h
+++ b/src/gallium/auxiliary/vl/vl_compositor.h
@@ -68,6 +68,7 @@ struct vl_compositor
    void *sampler_nearest;
    void *blend;
    void *rast;
+   void *dsa;
    void *vertex_elems_state;
 
    void *vs;