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Member "mesa-20.1.8/src/gallium/drivers/softpipe/sp_quad_pipe.c" (16 Sep 2020, 2482 Bytes) of package /linux/misc/mesa-20.1.8.tar.xz:


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    1 /**************************************************************************
    2  * 
    3  * Copyright 2007 VMware, Inc.
    4  * All Rights Reserved.
    5  * 
    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:
   13  * 
   14  * The above copyright notice and this permission notice (including the
   15  * next paragraph) shall be included in all copies or substantial portions
   16  * of the Software.
   17  * 
   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.
   25  * 
   26  **************************************************************************/
   27 
   28 
   29 #include "sp_context.h"
   30 #include "sp_state.h"
   31 #include "pipe/p_shader_tokens.h"
   32 
   33 
   34 static void
   35 insert_stage_at_head(struct softpipe_context *sp, struct quad_stage *quad)
   36 {
   37    quad->next = sp->quad.first;
   38    sp->quad.first = quad;
   39 }
   40 
   41 
   42 void
   43 sp_build_quad_pipeline(struct softpipe_context *sp)
   44 {
   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];
   53 
   54    sp->quad.first = sp->quad.blend;
   55 
   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 );
   60    }
   61    else {
   62       insert_stage_at_head( sp, sp->quad.depth_test );
   63       insert_stage_at_head( sp, sp->quad.shade );
   64    }
   65 
   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 );
   69 #endif
   70 }
   71