From 5b3f8369c693e75d1dbc7587e4e0d77934c0cd77 Mon Sep 17 00:00:00 2001
From: Michal Krol <michal@vmware.com>
Date: Wed, 24 Feb 2010 15:48:30 +0100
Subject: [PATCH] util: Reset clip state when doing blitting.

---
 src/gallium/auxiliary/util/u_blit.c       | 8 +++++++-
 src/gallium/auxiliary/util/u_gen_mipmap.c | 4 ++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/gallium/auxiliary/util/u_blit.c b/src/gallium/auxiliary/util/u_blit.c
index 90a3230..95567d0 100644
--- a/src/gallium/auxiliary/util/u_blit.c
+++ b/src/gallium/auxiliary/util/u_blit.c
@@ -62,6 +62,7 @@ struct blit_state
    struct pipe_rasterizer_state rasterizer;
    struct pipe_sampler_state sampler;
    struct pipe_viewport_state viewport;
+   struct pipe_clip_state clip;
 
    void *vs;
    void *fs[TGSI_WRITEMASK_XYZW + 1];
@@ -264,7 +265,6 @@ regions_overlap(int srcX0, int srcY0,
  * \param writemask  controls which channels in the dest surface are sourced
  *                   from the src surface.  Disabled channels are sourced
  *                   from (0,0,0,1).
- * XXX what about clipping???
  * XXX need some control over blitting Z and/or stencil.
  */
 void
@@ -409,11 +409,13 @@ util_blit_pixels_writemask(struct blit_state *ctx,
    cso_save_framebuffer(ctx->cso);
    cso_save_fragment_shader(ctx->cso);
    cso_save_vertex_shader(ctx->cso);
+   cso_save_clip(ctx->cso);
 
    /* set misc state we care about */
    cso_set_blend(ctx->cso, &ctx->blend);
    cso_set_depth_stencil_alpha(ctx->cso, &ctx->depthstencil);
    cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
+   cso_set_clip(ctx->cso, &ctx->clip);
 
    /* sampler */
    ctx->sampler.min_img_filter = filter;
@@ -475,6 +477,7 @@ util_blit_pixels_writemask(struct blit_state *ctx,
    cso_restore_framebuffer(ctx->cso);
    cso_restore_fragment_shader(ctx->cso);
    cso_restore_vertex_shader(ctx->cso);
+   cso_restore_clip(ctx->cso);
 
    pipe_texture_reference(&tex, NULL);
 }
@@ -558,11 +561,13 @@ util_blit_pixels_tex(struct blit_state *ctx,
    cso_save_framebuffer(ctx->cso);
    cso_save_fragment_shader(ctx->cso);
    cso_save_vertex_shader(ctx->cso);
+   cso_save_clip(ctx->cso);
 
    /* set misc state we care about */
    cso_set_blend(ctx->cso, &ctx->blend);
    cso_set_depth_stencil_alpha(ctx->cso, &ctx->depthstencil);
    cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
+   cso_set_clip(ctx->cso, &ctx->clip);
 
    /* sampler */
    ctx->sampler.min_img_filter = filter;
@@ -607,4 +612,5 @@ util_blit_pixels_tex(struct blit_state *ctx,
    cso_restore_framebuffer(ctx->cso);
    cso_restore_fragment_shader(ctx->cso);
    cso_restore_vertex_shader(ctx->cso);
+   cso_restore_clip(ctx->cso);
 }
diff --git a/src/gallium/auxiliary/util/u_gen_mipmap.c b/src/gallium/auxiliary/util/u_gen_mipmap.c
index 4f9ff1d..f423882 100644
--- a/src/gallium/auxiliary/util/u_gen_mipmap.c
+++ b/src/gallium/auxiliary/util/u_gen_mipmap.c
@@ -61,6 +61,7 @@ struct gen_mipmap_state
    struct pipe_depth_stencil_alpha_state depthstencil;
    struct pipe_rasterizer_state rasterizer;
    struct pipe_sampler_state sampler;
+   struct pipe_clip_state clip;
 
    void *vs;
    void *fs2d, *fsCube;
@@ -1499,11 +1500,13 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
    cso_save_fragment_shader(ctx->cso);
    cso_save_vertex_shader(ctx->cso);
    cso_save_viewport(ctx->cso);
+   cso_save_clip(ctx->cso);
 
    /* bind our state */
    cso_set_blend(ctx->cso, &ctx->blend);
    cso_set_depth_stencil_alpha(ctx->cso, &ctx->depthstencil);
    cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
+   cso_set_clip(ctx->cso, &ctx->clip);
 
    cso_set_fragment_shader_handle(ctx->cso, fs);
    cso_set_vertex_shader_handle(ctx->cso, ctx->vs);
@@ -1589,4 +1592,5 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
    cso_restore_fragment_shader(ctx->cso);
    cso_restore_vertex_shader(ctx->cso);
    cso_restore_viewport(ctx->cso);
+   cso_restore_clip(ctx->cso);
 }
-- 
2.7.4