2007-09-10 23:28:10 +01:00
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/**************************************************************************
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2018-09-14 20:57:32 +01:00
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*
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s/Tungsten Graphics/VMware/
Tungsten Graphics Inc. was acquired by VMware Inc. in 2008. Leaving the
old copyright name is creating unnecessary confusion, hence this change.
This was the sed script I used:
$ cat tg2vmw.sed
# Run as:
#
# git reset --hard HEAD && find include scons src -type f -not -name 'sed*' -print0 | xargs -0 sed -i -f tg2vmw.sed
#
# Rename copyrights
s/Tungsten Gra\(ph\|hp\)ics,\? [iI]nc\.\?\(, Cedar Park\)\?\(, Austin\)\?\(, \(Texas\|TX\)\)\?\.\?/VMware, Inc./g
/Copyright/s/Tungsten Graphics\(,\? [iI]nc\.\)\?\(, Cedar Park\)\?\(, Austin\)\?\(, \(Texas\|TX\)\)\?\.\?/VMware, Inc./
s/TUNGSTEN GRAPHICS/VMWARE/g
# Rename emails
s/alanh@tungstengraphics.com/alanh@vmware.com/
s/jens@tungstengraphics.com/jowen@vmware.com/g
s/jrfonseca-at-tungstengraphics-dot-com/jfonseca-at-vmware-dot-com/
s/jrfonseca\?@tungstengraphics.com/jfonseca@vmware.com/g
s/keithw\?@tungstengraphics.com/keithw@vmware.com/g
s/michel@tungstengraphics.com/daenzer@vmware.com/g
s/thomas-at-tungstengraphics-dot-com/thellstom-at-vmware-dot-com/
s/zack@tungstengraphics.com/zackr@vmware.com/
# Remove dead links
s@Tungsten Graphics (http://www.tungstengraphics.com)@Tungsten Graphics@g
# C string src/gallium/state_trackers/vega/api_misc.c
s/"Tungsten Graphics, Inc"/"VMware, Inc"/
Reviewed-by: Brian Paul <brianp@vmware.com>
2014-01-17 16:27:50 +00:00
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* Copyright 2007 VMware, Inc.
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2007-09-10 23:28:10 +01:00
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* All Rights Reserved.
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2018-09-14 20:57:32 +01:00
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*
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2007-09-10 23:28:10 +01:00
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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2018-09-14 20:57:32 +01:00
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*
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2007-09-10 23:28:10 +01:00
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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2018-09-14 20:57:32 +01:00
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*
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2007-09-10 23:28:10 +01:00
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
|
s/Tungsten Graphics/VMware/
Tungsten Graphics Inc. was acquired by VMware Inc. in 2008. Leaving the
old copyright name is creating unnecessary confusion, hence this change.
This was the sed script I used:
$ cat tg2vmw.sed
# Run as:
#
# git reset --hard HEAD && find include scons src -type f -not -name 'sed*' -print0 | xargs -0 sed -i -f tg2vmw.sed
#
# Rename copyrights
s/Tungsten Gra\(ph\|hp\)ics,\? [iI]nc\.\?\(, Cedar Park\)\?\(, Austin\)\?\(, \(Texas\|TX\)\)\?\.\?/VMware, Inc./g
/Copyright/s/Tungsten Graphics\(,\? [iI]nc\.\)\?\(, Cedar Park\)\?\(, Austin\)\?\(, \(Texas\|TX\)\)\?\.\?/VMware, Inc./
s/TUNGSTEN GRAPHICS/VMWARE/g
# Rename emails
s/alanh@tungstengraphics.com/alanh@vmware.com/
s/jens@tungstengraphics.com/jowen@vmware.com/g
s/jrfonseca-at-tungstengraphics-dot-com/jfonseca-at-vmware-dot-com/
s/jrfonseca\?@tungstengraphics.com/jfonseca@vmware.com/g
s/keithw\?@tungstengraphics.com/keithw@vmware.com/g
s/michel@tungstengraphics.com/daenzer@vmware.com/g
s/thomas-at-tungstengraphics-dot-com/thellstom-at-vmware-dot-com/
s/zack@tungstengraphics.com/zackr@vmware.com/
# Remove dead links
s@Tungsten Graphics (http://www.tungstengraphics.com)@Tungsten Graphics@g
# C string src/gallium/state_trackers/vega/api_misc.c
s/"Tungsten Graphics, Inc"/"VMware, Inc"/
Reviewed-by: Brian Paul <brianp@vmware.com>
2014-01-17 16:27:50 +00:00
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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2007-09-10 23:28:10 +01:00
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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2018-09-14 20:57:32 +01:00
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*
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2007-09-10 23:28:10 +01:00
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**************************************************************************/
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2007-11-17 00:13:01 +00:00
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/**
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* glRasterPos implementation. Basically render a GL_POINT with our
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* private draw module. Plug in a special "rasterpos" stage at the end
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* of the 'draw' pipeline to capture the results and update the current
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* raster pos attributes.
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*
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* Authors:
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* Brian Paul
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*/
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2007-09-10 23:28:10 +01:00
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2018-09-14 20:57:32 +01:00
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2007-09-10 23:28:10 +01:00
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#include "main/macros.h"
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2018-04-26 22:17:20 +01:00
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#include "main/arrayobj.h"
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2008-02-28 16:44:09 +00:00
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#include "main/feedback.h"
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2021-12-22 20:17:16 +00:00
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#include "main/framebuffer.h"
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2015-10-21 20:42:37 +01:00
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#include "main/rastpos.h"
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2018-04-26 22:17:20 +01:00
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#include "main/state.h"
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#include "main/varray.h"
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2007-09-10 23:28:10 +01:00
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2021-12-29 00:34:45 +00:00
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#include "util/u_memory.h"
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2007-09-10 23:28:10 +01:00
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#include "st_context.h"
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#include "st_atom.h"
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#include "st_draw.h"
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2017-04-30 14:45:18 +01:00
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#include "st_program.h"
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2007-09-10 23:28:10 +01:00
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#include "st_cb_rasterpos.h"
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2008-02-15 08:50:12 +00:00
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#include "draw/draw_context.h"
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2008-04-19 15:29:27 +01:00
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#include "draw/draw_pipe.h"
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2007-11-17 00:13:01 +00:00
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#include "vbo/vbo.h"
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2007-09-10 23:28:10 +01:00
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2007-11-17 00:13:01 +00:00
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/**
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* Our special drawing pipeline stage (replaces rasterization).
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*/
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struct rastpos_stage
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2007-09-10 23:28:10 +01:00
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{
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2007-11-17 00:13:01 +00:00
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struct draw_stage stage; /**< Base class */
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2010-10-12 17:26:10 +01:00
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struct gl_context *ctx; /**< Rendering context */
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2007-09-10 23:28:10 +01:00
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2007-11-17 00:13:01 +00:00
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/* vertex attrib info we can setup once and re-use */
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2018-04-26 22:17:20 +01:00
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struct gl_vertex_array_object *VAO;
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2007-11-17 00:13:01 +00:00
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struct _mesa_prim prim;
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};
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2007-09-10 23:28:10 +01:00
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2015-02-26 17:03:22 +00:00
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static inline struct rastpos_stage *
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2007-11-17 00:13:01 +00:00
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rastpos_stage( struct draw_stage *stage )
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{
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return (struct rastpos_stage *) stage;
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}
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2007-09-10 23:28:10 +01:00
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static void
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2008-01-25 22:59:27 +00:00
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rastpos_flush( struct draw_stage *stage, unsigned flags )
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2007-11-17 00:13:01 +00:00
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{
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/* no-op */
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}
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2007-09-10 23:28:10 +01:00
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2007-11-17 00:13:01 +00:00
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static void
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rastpos_reset_stipple_counter( struct draw_stage *stage )
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2007-09-10 23:28:10 +01:00
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{
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2007-11-17 00:13:01 +00:00
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/* no-op */
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2007-09-10 23:28:10 +01:00
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}
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2007-11-17 00:13:01 +00:00
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static void
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rastpos_tri( struct draw_stage *stage, struct prim_header *prim )
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{
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/* should never get here */
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assert(0);
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}
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2007-09-10 23:28:10 +01:00
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2007-11-17 00:13:01 +00:00
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static void
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rastpos_line( struct draw_stage *stage, struct prim_header *prim )
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2007-09-10 23:28:10 +01:00
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{
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2007-11-17 00:13:01 +00:00
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/* should never get here */
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assert(0);
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2007-09-10 23:28:10 +01:00
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}
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2008-01-24 23:05:33 +00:00
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static void
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rastpos_destroy(struct draw_stage *stage)
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{
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2018-04-26 22:17:20 +01:00
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struct rastpos_stage *rstage = (struct rastpos_stage*)stage;
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_mesa_reference_vao(rstage->ctx, &rstage->VAO, NULL);
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2021-12-29 00:34:45 +00:00
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FREE(stage);
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2008-01-24 23:05:33 +00:00
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}
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2007-09-10 23:28:10 +01:00
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/**
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2007-11-17 00:13:01 +00:00
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* Update a raster pos attribute from the vertex result if it's present,
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* else copy the current attrib.
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2007-09-10 23:28:10 +01:00
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*/
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2007-11-17 00:13:01 +00:00
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static void
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2017-04-30 13:33:03 +01:00
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update_attrib(struct gl_context *ctx, const ubyte *outputMapping,
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2007-11-17 00:13:01 +00:00
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const struct vertex_header *vert,
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GLfloat *dest,
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GLuint result, GLuint defaultAttrib)
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2007-09-10 23:28:10 +01:00
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{
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2007-11-17 00:13:01 +00:00
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const GLfloat *src;
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2021-07-07 08:00:50 +01:00
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const ubyte k = outputMapping[result];
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if (k != 0xff)
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2007-11-17 00:13:01 +00:00
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src = vert->data[k];
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else
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src = ctx->Current.Attrib[defaultAttrib];
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COPY_4V(dest, src);
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2007-09-10 23:28:10 +01:00
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}
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/**
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2007-11-17 00:13:01 +00:00
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* Normally, this function would render a GL_POINT.
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2007-09-10 23:28:10 +01:00
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*/
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static void
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2007-11-17 00:13:01 +00:00
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rastpos_point(struct draw_stage *stage, struct prim_header *prim)
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2007-09-10 23:28:10 +01:00
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{
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2007-11-17 00:13:01 +00:00
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struct rastpos_stage *rs = rastpos_stage(stage);
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2010-10-12 17:26:10 +01:00
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struct gl_context *ctx = rs->ctx;
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2010-04-23 21:00:50 +01:00
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struct st_context *st = st_context(ctx);
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2008-07-15 10:26:38 +01:00
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const GLfloat height = (GLfloat) ctx->DrawBuffer->Height;
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2021-12-20 06:15:22 +00:00
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struct gl_vertex_program *stvp = (struct gl_vertex_program *)st->vp;
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2019-11-02 03:04:11 +00:00
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const ubyte *outputMapping = stvp->result_to_output;
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2007-11-17 00:13:01 +00:00
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const GLfloat *pos;
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GLuint i;
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2020-12-19 06:37:40 +00:00
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ctx->PopAttribState |= GL_CURRENT_BIT;
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2007-11-17 00:13:01 +00:00
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/* if we get here, we didn't get clipped */
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ctx->Current.RasterPosValid = GL_TRUE;
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2007-09-10 23:28:10 +01:00
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2007-11-17 00:13:01 +00:00
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/* update raster pos */
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pos = prim->v[0]->data[0];
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ctx->Current.RasterPos[0] = pos[0];
|
2021-12-22 20:17:16 +00:00
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if (_mesa_fb_orientation(ctx->DrawBuffer) == Y_0_TOP)
|
2008-11-25 01:37:18 +00:00
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ctx->Current.RasterPos[1] = height - pos[1]; /* invert Y */
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else
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ctx->Current.RasterPos[1] = pos[1];
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2007-11-17 00:13:01 +00:00
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ctx->Current.RasterPos[2] = pos[2];
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ctx->Current.RasterPos[3] = pos[3];
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2007-09-10 23:28:10 +01:00
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2007-11-17 00:13:01 +00:00
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/* update other raster attribs */
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update_attrib(ctx, outputMapping, prim->v[0],
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ctx->Current.RasterColor,
|
2013-02-23 15:22:01 +00:00
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VARYING_SLOT_COL0, VERT_ATTRIB_COLOR0);
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2007-09-10 23:28:10 +01:00
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2007-11-17 00:13:01 +00:00
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update_attrib(ctx, outputMapping, prim->v[0],
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ctx->Current.RasterSecondaryColor,
|
2013-02-23 15:22:01 +00:00
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VARYING_SLOT_COL1, VERT_ATTRIB_COLOR1);
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2007-10-17 19:32:21 +01:00
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|
2009-01-02 23:16:16 +00:00
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for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) {
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2007-11-17 00:13:01 +00:00
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update_attrib(ctx, outputMapping, prim->v[0],
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ctx->Current.RasterTexCoords[i],
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2013-02-23 15:22:01 +00:00
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VARYING_SLOT_TEX0 + i, VERT_ATTRIB_TEX0 + i);
|
2007-10-17 19:32:21 +01:00
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}
|
2008-02-28 16:44:09 +00:00
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if (ctx->RenderMode == GL_SELECT) {
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_mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] );
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}
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2007-09-10 23:28:10 +01:00
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}
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2007-11-17 00:13:01 +00:00
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/**
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* Create rasterpos "drawing" stage.
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*/
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static struct rastpos_stage *
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2010-10-12 17:26:10 +01:00
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new_draw_rastpos_stage(struct gl_context *ctx, struct draw_context *draw)
|
2007-11-17 00:13:01 +00:00
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{
|
2021-12-29 00:34:45 +00:00
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struct rastpos_stage *rs = CALLOC_STRUCT(rastpos_stage);
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2007-11-17 00:13:01 +00:00
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rs->stage.draw = draw;
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rs->stage.next = NULL;
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rs->stage.point = rastpos_point;
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rs->stage.line = rastpos_line;
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rs->stage.tri = rastpos_tri;
|
2008-01-25 22:59:27 +00:00
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rs->stage.flush = rastpos_flush;
|
2008-01-24 22:23:27 +00:00
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rs->stage.destroy = rastpos_destroy;
|
2007-11-17 00:13:01 +00:00
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rs->stage.reset_stipple_counter = rastpos_reset_stipple_counter;
|
2008-01-24 23:05:33 +00:00
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rs->stage.destroy = rastpos_destroy;
|
2007-11-17 00:13:01 +00:00
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rs->ctx = ctx;
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|
2018-04-26 22:17:20 +01:00
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rs->VAO = _mesa_new_vao(ctx, ~((GLuint)0));
|
2018-05-13 08:18:57 +01:00
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_mesa_vertex_attrib_binding(ctx, rs->VAO, VERT_ATTRIB_POS, 0);
|
2018-04-26 22:17:20 +01:00
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_mesa_update_array_format(ctx, rs->VAO, VERT_ATTRIB_POS, 4, GL_FLOAT,
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GL_RGBA, GL_FALSE, GL_FALSE, GL_FALSE, 0);
|
2018-05-13 08:18:57 +01:00
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_mesa_enable_vertex_array_attrib(ctx, rs->VAO, 0);
|
2007-12-11 13:00:12 +00:00
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rs->prim.mode = GL_POINTS;
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rs->prim.begin = 1;
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rs->prim.end = 1;
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rs->prim.start = 0;
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rs->prim.count = 1;
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2007-11-17 00:13:01 +00:00
|
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return rs;
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}
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|
2007-09-10 23:28:10 +01:00
|
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|
2021-12-07 01:20:39 +00:00
|
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void
|
2010-10-12 17:26:10 +01:00
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st_RasterPos(struct gl_context *ctx, const GLfloat v[4])
|
2007-09-10 23:28:10 +01:00
|
|
|
{
|
2010-04-23 21:00:50 +01:00
|
|
|
struct st_context *st = st_context(ctx);
|
2016-08-02 20:28:27 +01:00
|
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|
struct draw_context *draw = st_get_draw_context(st);
|
2007-11-17 00:13:01 +00:00
|
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|
struct rastpos_stage *rs;
|
2007-09-10 23:28:10 +01:00
|
|
|
|
2016-08-02 20:28:27 +01:00
|
|
|
if (!st->draw)
|
|
|
|
return;
|
|
|
|
|
2015-10-21 20:42:37 +01:00
|
|
|
if (ctx->VertexProgram._Current == NULL ||
|
|
|
|
ctx->VertexProgram._Current == ctx->VertexProgram._TnlProgram) {
|
|
|
|
/* No vertex shader/program is enabled, used the simple/fast fixed-
|
|
|
|
* function implementation of RasterPos.
|
|
|
|
*/
|
|
|
|
_mesa_RasterPos(ctx, v);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2007-11-17 00:13:01 +00:00
|
|
|
if (st->rastpos_stage) {
|
|
|
|
/* get rastpos stage info */
|
|
|
|
rs = rastpos_stage(st->rastpos_stage);
|
2007-09-10 23:28:10 +01:00
|
|
|
}
|
2007-11-17 00:13:01 +00:00
|
|
|
else {
|
|
|
|
/* create rastpos draw stage */
|
|
|
|
rs = new_draw_rastpos_stage(ctx, draw);
|
|
|
|
st->rastpos_stage = &rs->stage;
|
|
|
|
}
|
2007-09-10 23:28:10 +01:00
|
|
|
|
2007-11-17 00:13:01 +00:00
|
|
|
/* plug our rastpos stage into the draw module */
|
|
|
|
draw_set_rasterize_stage(st->draw, st->rastpos_stage);
|
2007-10-18 17:42:47 +01:00
|
|
|
|
2007-11-17 00:13:01 +00:00
|
|
|
/* make sure everything's up to date */
|
2016-01-05 20:20:06 +00:00
|
|
|
st_validate_state(st, ST_PIPELINE_RENDER);
|
2007-09-25 21:29:11 +01:00
|
|
|
|
2007-11-17 00:13:01 +00:00
|
|
|
/* This will get set only if rastpos_point(), above, gets called */
|
2020-12-19 06:37:40 +00:00
|
|
|
ctx->PopAttribState |= GL_CURRENT_BIT;
|
2007-11-17 00:13:01 +00:00
|
|
|
ctx->Current.RasterPosValid = GL_FALSE;
|
2007-09-10 23:28:10 +01:00
|
|
|
|
2007-11-17 00:13:01 +00:00
|
|
|
/* All vertex attribs but position were previously initialized above.
|
|
|
|
* Just plug in position pointer now.
|
|
|
|
*/
|
2018-04-26 22:17:20 +01:00
|
|
|
rs->VAO->VertexAttrib[VERT_ATTRIB_POS].Ptr = (GLubyte *) v;
|
2021-10-24 08:28:53 +01:00
|
|
|
rs->VAO->NewVertexBuffers = true;
|
|
|
|
/* Non-dynamic VAOs merge vertex buffers, which changes vertex elements. */
|
|
|
|
if (!rs->VAO->IsDynamic)
|
|
|
|
rs->VAO->NewVertexElements = true;
|
2018-04-26 22:17:20 +01:00
|
|
|
_mesa_set_draw_vao(ctx, rs->VAO, VERT_BIT_POS);
|
2007-09-10 23:28:10 +01:00
|
|
|
|
2018-04-26 22:17:20 +01:00
|
|
|
/* Draw the point. */
|
2020-11-01 18:43:43 +00:00
|
|
|
st_feedback_draw_vbo(ctx, &rs->prim, 1, NULL, true, false, 0, 0, 1, 1, 0);
|
2010-02-13 00:22:10 +00:00
|
|
|
|
|
|
|
/* restore draw's rasterization stage depending on rendermode */
|
|
|
|
if (ctx->RenderMode == GL_FEEDBACK) {
|
|
|
|
draw_set_rasterize_stage(draw, st->feedback_stage);
|
|
|
|
}
|
|
|
|
else if (ctx->RenderMode == GL_SELECT) {
|
|
|
|
draw_set_rasterize_stage(draw, st->selection_stage);
|
|
|
|
}
|
2007-09-10 23:28:10 +01:00
|
|
|
}
|