1 /**************************************************************************
3 * Copyright 2007 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
29 #include "sp_context.h"
31 #include "pipe/p_shader_tokens.h"
35 insert_stage_at_head(struct softpipe_context
*sp
, struct quad_stage
*quad
)
37 quad
->next
= sp
->quad
.first
;
38 sp
->quad
.first
= quad
;
43 sp_build_quad_pipeline(struct softpipe_context
*sp
)
45 boolean early_depth_test
=
46 (sp
->depth_stencil
->depth
.enabled
&&
47 sp
->framebuffer
.zsbuf
&&
48 !sp
->depth_stencil
->alpha
.enabled
&&
49 !sp
->fs_variant
->info
.uses_kill
&&
50 !sp
->fs_variant
->info
.writes_z
&&
51 !sp
->fs_variant
->info
.writes_stencil
) ||
52 sp
->fs_variant
->info
.properties
[TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL
];
54 sp
->quad
.first
= sp
->quad
.blend
;
56 sp
->early_depth
= early_depth_test
;
57 if (early_depth_test
) {
58 insert_stage_at_head( sp
, sp
->quad
.shade
);
59 insert_stage_at_head( sp
, sp
->quad
.depth_test
);
62 insert_stage_at_head( sp
, sp
->quad
.depth_test
);
63 insert_stage_at_head( sp
, sp
->quad
.shade
);
66 #if !DO_PSTIPPLE_IN_DRAW_MODULE && !DO_PSTIPPLE_IN_HELPER_MODULE
67 if (sp
->rasterizer
->poly_stipple_enable
)
68 insert_stage_at_head( sp
, sp
->quad
.pstipple
);