diff options
| author | Brian Paul <[email protected]> | 2011-04-25 10:26:19 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2011-04-27 11:51:30 -0600 |
| commit | 0be6ae74e9a56e84df088392ef3b09229508404f (patch) | |
| tree | a56fb646fe9afa5de3d36f65030711df526a58bd /src/gallium | |
| parent | 33afdf835654cc21377fd1f57af03b3fa34f97f8 (diff) | |
svga: emit user-defined clip plane state
User-defined clip planes were a swtnl fallback before.
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/svga/svga_state_framebuffer.c | 23 | ||||
| -rw-r--r-- | src/gallium/drivers/svga/svga_state_need_swtnl.c | 8 | ||||
| -rw-r--r-- | src/gallium/drivers/svga/svga_state_rss.c | 6 |
3 files changed, 26 insertions, 11 deletions
diff --git a/src/gallium/drivers/svga/svga_state_framebuffer.c b/src/gallium/drivers/svga/svga_state_framebuffer.c index cc4819431ad..502f21fc42c 100644 --- a/src/gallium/drivers/svga/svga_state_framebuffer.c +++ b/src/gallium/drivers/svga/svga_state_framebuffer.c @@ -474,9 +474,26 @@ static int emit_clip_planes( struct svga_context *svga, /* TODO: just emit directly from svga_set_clip_state()? */ for (i = 0; i < svga->curr.clip.nr; i++) { - ret = SVGA3D_SetClipPlane( svga->swc, - i, - svga->curr.clip.ucp[i] ); + /* need to express the plane in D3D-style coordinate space. + * GL coords get converted to D3D coords with the matrix: + * [ 1 0 0 0 ] + * [ 0 -1 0 0 ] + * [ 0 0 2 0 ] + * [ 0 0 -1 1 ] + * Apply that matrix to our plane equation, and invert Y. + */ + float a = svga->curr.clip.ucp[i][0]; + float b = svga->curr.clip.ucp[i][1]; + float c = svga->curr.clip.ucp[i][2]; + float d = svga->curr.clip.ucp[i][3]; + float plane[4]; + + plane[0] = a; + plane[1] = b; + plane[2] = 2.0f * c; + plane[3] = d - c; + + ret = SVGA3D_SetClipPlane(svga->swc, i, plane); if(ret != PIPE_OK) return ret; } diff --git a/src/gallium/drivers/svga/svga_state_need_swtnl.c b/src/gallium/drivers/svga/svga_state_need_swtnl.c index 68c02578789..5a37f9fc287 100644 --- a/src/gallium/drivers/svga/svga_state_need_swtnl.c +++ b/src/gallium/drivers/svga/svga_state_need_swtnl.c @@ -139,13 +139,6 @@ static int update_need_pipeline( struct svga_context *svga, need_pipeline = TRUE; } - /* SVGA_NEW_CLIP - */ - if (svga->curr.clip.nr) { - SVGA_DBG(DEBUG_SWTNL, "%s: userclip\n", __FUNCTION__); - need_pipeline = TRUE; - } - if (need_pipeline != svga->state.sw.need_pipeline) { svga->state.sw.need_pipeline = need_pipeline; svga->dirty |= SVGA_NEW_NEED_PIPELINE; @@ -163,7 +156,6 @@ struct svga_tracked_state svga_update_need_pipeline = { "need pipeline", (SVGA_NEW_RAST | - SVGA_NEW_CLIP | SVGA_NEW_VS | SVGA_NEW_REDUCED_PRIMITIVE), update_need_pipeline diff --git a/src/gallium/drivers/svga/svga_state_rss.c b/src/gallium/drivers/svga/svga_state_rss.c index ab13f3fdf19..28f32793742 100644 --- a/src/gallium/drivers/svga/svga_state_rss.c +++ b/src/gallium/drivers/svga/svga_state_rss.c @@ -240,6 +240,11 @@ static int emit_rss( struct svga_context *svga, EMIT_RS_FLOAT( svga, bias, DEPTHBIAS, fail ); } + if (dirty & SVGA_NEW_CLIP) { + /* the number of clip planes is how many planes to enable */ + unsigned enabled = (1 << svga->curr.clip.nr) - 1; + EMIT_RS( svga, enabled, CLIPPLANEENABLE, fail ); + } if (queue.rs_count) { SVGA3dRenderState *rs; @@ -276,6 +281,7 @@ struct svga_tracked_state svga_hw_rss = (SVGA_NEW_BLEND | SVGA_NEW_BLEND_COLOR | + SVGA_NEW_CLIP | SVGA_NEW_DEPTH_STENCIL | SVGA_NEW_STENCIL_REF | SVGA_NEW_RAST | |