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| 4358 | Serge | 1 | /************************************************************************** |
| 2 | * |
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| 3 | * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. |
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| 4 | * All Rights Reserved. |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 7 | * copy of this software and associated documentation files (the |
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| 8 | * "Software"), to deal in the Software without restriction, including |
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| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
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| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
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| 11 | * permit persons to whom the Software is furnished to do so, subject to |
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| 12 | * the following conditions: |
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| 13 | * |
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| 14 | * The above copyright notice and this permission notice (including the |
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| 15 | * next paragraph) shall be included in all copies or substantial portions |
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| 16 | * of the Software. |
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| 17 | * |
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
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| 21 | * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
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| 22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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| 23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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| 24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | * |
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| 26 | **************************************************************************/ |
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| 27 | |||
| 28 | |||
| 29 | #include "sp_context.h" |
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| 30 | #include "sp_state.h" |
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| 31 | #include "pipe/p_shader_tokens.h" |
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| 32 | |||
| 33 | |||
| 34 | static void |
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| 35 | insert_stage_at_head(struct softpipe_context *sp, struct quad_stage *quad) |
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| 36 | { |
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| 37 | quad->next = sp->quad.first; |
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| 38 | sp->quad.first = quad; |
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| 39 | } |
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| 40 | |||
| 41 | |||
| 42 | void |
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| 43 | sp_build_quad_pipeline(struct softpipe_context *sp) |
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| 44 | { |
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| 45 | boolean early_depth_test = |
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| 46 | sp->depth_stencil->depth.enabled && |
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| 47 | sp->framebuffer.zsbuf && |
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| 48 | !sp->depth_stencil->alpha.enabled && |
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| 49 | !sp->fs_variant->info.uses_kill && |
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| 50 | !sp->fs_variant->info.writes_z && |
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| 51 | !sp->fs_variant->info.writes_stencil; |
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| 52 | |||
| 53 | sp->quad.first = sp->quad.blend; |
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| 54 | |||
| 55 | if (early_depth_test) { |
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| 56 | insert_stage_at_head( sp, sp->quad.shade ); |
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| 57 | insert_stage_at_head( sp, sp->quad.depth_test ); |
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| 58 | } |
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| 59 | else { |
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| 60 | insert_stage_at_head( sp, sp->quad.depth_test ); |
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| 61 | insert_stage_at_head( sp, sp->quad.shade ); |
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| 62 | } |
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| 63 | |||
| 64 | #if !DO_PSTIPPLE_IN_DRAW_MODULE && !DO_PSTIPPLE_IN_HELPER_MODULE |
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| 65 | if (sp->rasterizer->poly_stipple_enable) |
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| 66 | insert_stage_at_head( sp, sp->quad.pstipple ); |
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| 67 | #endif |
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| 68 | } |
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| 69 |