Squash-merge branch 'gallium-clip-state'

Conflicts:
	src/gallium/auxiliary/tgsi/tgsi_strings.c
	src/mesa/state_tracker/st_atom_clip.c

commit d919791f2742e913173d6b335128e7d4c63c0840
Author: Christoph Bumiller <[email protected]>
Date:   Fri Jan 6 17:59:22 2012 +0100

    d3d1x: adapt to new clip state

commit cfec82bca3fefcdefafca3f4555285ec1d1ae421
Author: Christoph Bumiller <[email protected]>
Date:   Fri Jan 6 14:16:51 2012 +0100

    gallium/docs: update for clip state changes

commit c02bfeb81ad9f62041a2285ea6373bbbd602912a
Author: Christoph Bumiller <[email protected]>
Date:   Fri Jan 6 14:21:43 2012 +0100

    tgsi: add TGSI_PROPERTY_PROHIBIT_UCPS

commit d4e0a785a6a23ad2f6819fd72e236acb9750028d
Author: Brian Paul <[email protected]>
Date:   Thu Jan 5 08:30:00 2012 -0700

    tgsi: consolidate TGSI string arrays in new tgsi_strings.h

    There was some duplication between the tgsi_dump.c and tgsi_text.c
    files.  Also use some static assertions to help catch errors when
    adding new TGSI values.

    v2: put strings in tgsi_strings.c file instead of the .h file.

    Reviewed-by: Dave Airlie <[email protected]>

commit c28584ce0d8c62bd92c8f140729d344f88a0b3cd
Author: Christoph Bumiller <[email protected]>
Date:   Fri Jan 6 12:48:09 2012 +0100

    gallium: extend user_clip_plane_enable to apply to clip distances

commit f1d5016c07f786229ed057effbe55fbfd160b019
Author: Marek Olšák <[email protected]>
Date:   Fri Jan 6 02:39:09 2012 +0100

    nvfx: adapt to new clip state

commit 6f6fa1c26bd19f797c1996731708e3569c9bfe24
Author: Marek Olšák <[email protected]>
Date:   Fri Jan 6 01:41:39 2012 +0100

    st/mesa: fix DrawPixels with GL_DEPTH_CLAMP

commit c86ad730aa1c017788ae88a55f54071bf222be12
Author: Christoph Bumiller <[email protected]>
Date:   Tue Jan 3 23:51:30 2012 +0100

    nv50: adapt to new clip state

commit 3a8ae6ac243bae5970729dc4057fe02d992543dc
Author: Christoph Bumiller <[email protected]>
Date:   Tue Jan 3 23:32:36 2012 +0100

    nvc0: adapt to new clip state

commit 6243a8246997f8d2fcc69ab741a2c2dea080ff11
Author: Marek Olšák <[email protected]>
Date:   Thu Dec 29 01:32:51 2011 +0100

    draw: initalize pt.user.planes in draw_init

    This fixes a crash in glean/fpexceptions.

commit e3056524b19b56d473f4faff84ffa0eb41497408
Author: Marek Olšák <[email protected]>
Date:   Mon Dec 26 06:26:55 2011 +0100

    svga: adapt to new clip state

commit c5bfa8b37d6d489271df457229081d6bbb51b4b7
Author: Marek Olšák <[email protected]>
Date:   Sun Dec 25 14:11:51 2011 +0100

    r600g: adapt to new clip state

commit f11890905362f62627c4a28a8255b76eb7de7df2
Author: Marek Olšák <[email protected]>
Date:   Sun Dec 25 14:10:26 2011 +0100

    r300g: adapt to new clip state

commit e37465327c79a01112f15f6278d9accc5bf3103f
Author: Marek Olšák <[email protected]>
Date:   Sun Dec 25 12:39:16 2011 +0100

    draw: adapt to new clip state

    This adds a regression in the LLVM clipping path. Can anybody see anything
    wrong with the code? It works for every other case, just glean/fpexceptions
    crashes when doing the "Infinite clip plane test".

commit b474d2b18c72d965eefae4e427c269cba5ce6ba2
Author: Marek Olšák <[email protected]>
Date:   Sun Dec 25 13:14:59 2011 +0100

    u_blitter: don't save/set/restore clip state

commit 9dd240ea91f523a677af45e8d0adb9e661e28602
Author: Marek Olšák <[email protected]>
Date:   Sun Dec 25 13:11:56 2011 +0100

    gallium: don't cso_save/set/restore clip state

    The enable bits are in the rasterizer state.

commit a4f7031179f5f4ad524b34b394214b984ac950f6
Author: Marek Olšák <[email protected]>
Date:   Sun Dec 25 12:58:55 2011 +0100

    gallium: default depth_clip to 1

    depth_clip = !depth_clamp

commit fe21147a00ab90e549d63fe12ee4625c9c2ffcc3
Author: Marek Olšák <[email protected]>
Date:   Mon Dec 26 06:14:19 2011 +0100

    trace,util: update state logging to new clip state

    Also dump the other missing flags.

commit 2a3b96e84ac872dcc5bc1de049fe76bb58d64b23
Author: Marek Olšák <[email protected]>
Date:   Sun Dec 25 10:43:43 2011 +0100

    st/mesa: adapt to new clip state

commit b7b656a42fca19d7c85267f42649a206a85a2c72
Author: Marek Olšák <[email protected]>
Date:   Sat Dec 17 15:45:19 2011 +0100

    gallium: move state enable bits from clip_state to rasterizer_state

3 files changed, 19 insertions, 4 deletions

diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 91d8b1e4525..4425fc9f946 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -468,7 +468,7 @@ enum pipe_cap {
    PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT = 38,
    PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER = 39,
    PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER = 40,
-   PIPE_CAP_DEPTH_CLAMP = 41,
+   PIPE_CAP_DEPTH_CLIP_DISABLE = 41,
    PIPE_CAP_SHADER_STENCIL_EXPORT = 42,
    PIPE_CAP_TGSI_INSTANCEID = 43,
    PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR = 44,
diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h
index 75e17a1f74e..2fbe1df8312 100644
--- a/src/gallium/include/pipe/p_shader_tokens.h
+++ b/src/gallium/include/pipe/p_shader_tokens.h
@@ -191,7 +191,8 @@ union tgsi_immediate_data
 #define TGSI_PROPERTY_FS_COORD_PIXEL_CENTER  4
 #define TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS 5
 #define TGSI_PROPERTY_FS_DEPTH_LAYOUT        6
-#define TGSI_PROPERTY_COUNT                  7
+#define TGSI_PROPERTY_VS_PROHIBIT_UCPS       7
+#define TGSI_PROPERTY_COUNT                  8
 
 struct tgsi_property {
    unsigned Type         : 4;  /**< TGSI_TOKEN_TYPE_PROPERTY */
diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h
index f943ca58b88..024d544e3ef 100644
--- a/src/gallium/include/pipe/p_state.h
+++ b/src/gallium/include/pipe/p_state.h
@@ -127,6 +127,22 @@ struct pipe_rasterizer_state
     */
    unsigned rasterizer_discard:1;
 
+   /**
+    * When false, depth clipping is disabled and the depth value will be
+    * clamped later at the per-pixel level before depth testing.
+    * This depends on PIPE_CAP_DEPTH_CLIP_DISABLE.
+    */
+   unsigned depth_clip:1;
+
+   /**
+    * Enable bits for clipping half-spaces.
+    * This applies to both user clip planes and shader clip distances.
+    * Note that if the bound shader exports any clip distances, these
+    * replace all user clip planes, and clip half-spaces enabled here
+    * but not written by the shader count as disabled.
+    */
+   unsigned clip_plane_enable:PIPE_MAX_CLIP_PLANES;
+
    unsigned line_stipple_factor:8;  /**< [1..256] actually */
    unsigned line_stipple_pattern:16;
 
@@ -165,8 +181,6 @@ struct pipe_scissor_state
 struct pipe_clip_state
 {
    float ucp[PIPE_MAX_CLIP_PLANES][4];
-   unsigned nr;
-   unsigned depth_clamp:1;
 };