gallivm/llvmpipe: move lp_bld_interp.c to llvmpipe/ directory

This file is specific to the llvmpipe driver and not re-usable.

2 files changed, 0 insertions, 504 deletions

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_interp.c b/src/gallium/auxiliary/gallivm/lp_bld_interp.c
deleted file mode 100644
index 09efb161217..00000000000
--- a/src/gallium/auxiliary/gallivm/lp_bld_interp.c
+++ /dev/null
@@ -1,408 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2009 VMware, Inc.
- * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
-/**
- * @file
- * Position and shader input interpolation.
- *
- * @author Jose Fonseca <[email protected]>
- */
-
-#include "pipe/p_shader_tokens.h"
-#include "util/u_debug.h"
-#include "util/u_memory.h"
-#include "util/u_math.h"
-#include "tgsi/tgsi_parse.h"
-#include "lp_bld_debug.h"
-#include "lp_bld_const.h"
-#include "lp_bld_arit.h"
-#include "lp_bld_swizzle.h"
-#include "lp_bld_interp.h"
-
-
-/*
- * The shader JIT function operates on blocks of quads.
- * Each block has 2x2 quads and each quad has 2x2 pixels.
- *
- * We iterate over the quads in order 0, 1, 2, 3:
- *
- * #################
- * #   |   #   |   #
- * #---0---#---1---#
- * #   |   #   |   #
- * #################
- * #   |   #   |   #
- * #---2---#---3---#
- * #   |   #   |   #
- * #################
- *
- * Within each quad, we have four pixels which are represented in SOA
- * order:
- *
- * #########
- * # 0 | 1 #
- * #---+---#
- * # 2 | 3 #
- * #########
- *
- * So the green channel (for example) of the four pixels is stored in
- * a single vector register: {g0, g1, g2, g3}.
- */
-
-
-static void
-attrib_name(LLVMValueRef val, unsigned attrib, unsigned chan, const char *suffix)
-{
-   if(attrib == 0)
-      lp_build_name(val, "pos.%c%s", "xyzw"[chan], suffix);
-   else
-      lp_build_name(val, "input%u.%c%s", attrib - 1, "xyzw"[chan], suffix);
-}
-
-
-/**
- * Initialize the bld->a0, dadx, dady fields.  This involves fetching
- * those values from the arrays which are passed into the JIT function.
- */
-static void
-coeffs_init(struct lp_build_interp_soa_context *bld,
-            LLVMValueRef a0_ptr,
-            LLVMValueRef dadx_ptr,
-            LLVMValueRef dady_ptr)
-{
-   LLVMBuilderRef builder = bld->base.builder;
-   unsigned attrib;
-   unsigned chan;
-
-   for(attrib = 0; attrib < bld->num_attribs; ++attrib) {
-      unsigned mask = bld->mask[attrib];
-      unsigned mode = bld->mode[attrib];
-      for(chan = 0; chan < NUM_CHANNELS; ++chan) {
-         if(mask & (1 << chan)) {
-            LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), attrib*NUM_CHANNELS + chan, 0);
-            LLVMValueRef a0 = NULL;
-            LLVMValueRef dadx = NULL;
-            LLVMValueRef dady = NULL;
-
-            switch( mode ) {
-            case TGSI_INTERPOLATE_PERSPECTIVE:
-               /* fall-through */
-
-            case TGSI_INTERPOLATE_LINEAR:
-               dadx = LLVMBuildLoad(builder, LLVMBuildGEP(builder, dadx_ptr, &index, 1, ""), "");
-               dady = LLVMBuildLoad(builder, LLVMBuildGEP(builder, dady_ptr, &index, 1, ""), "");
-               dadx = lp_build_broadcast_scalar(&bld->base, dadx);
-               dady = lp_build_broadcast_scalar(&bld->base, dady);
-               attrib_name(dadx, attrib, chan, ".dadx");
-               attrib_name(dady, attrib, chan, ".dady");
-               /* fall-through */
-
-            case TGSI_INTERPOLATE_CONSTANT:
-               a0 = LLVMBuildLoad(builder, LLVMBuildGEP(builder, a0_ptr, &index, 1, ""), "");
-               a0 = lp_build_broadcast_scalar(&bld->base, a0);
-               attrib_name(a0, attrib, chan, ".a0");
-               break;
-
-            default:
-               assert(0);
-               break;
-            }
-
-            bld->a0  [attrib][chan] = a0;
-            bld->dadx[attrib][chan] = dadx;
-            bld->dady[attrib][chan] = dady;
-         }
-      }
-   }
-}
-
-
-/**
- * Emit LLVM code to compute the fragment shader input attribute values.
- * For example, for a color input, we'll compute red, green, blue and alpha
- * values for the four pixels in a quad.
- * Recall that we're operating on 4-element vectors so each arithmetic
- * operation is operating on the four pixels in a quad.
- */
-static void
-attribs_init(struct lp_build_interp_soa_context *bld)
-{
-   LLVMValueRef x = bld->pos[0];
-   LLVMValueRef y = bld->pos[1];
-   LLVMValueRef oow = NULL;
-   unsigned attrib;
-   unsigned chan;
-
-   for(attrib = 0; attrib < bld->num_attribs; ++attrib) {
-      unsigned mask = bld->mask[attrib];
-      unsigned mode = bld->mode[attrib];
-      for(chan = 0; chan < NUM_CHANNELS; ++chan) {
-         if(mask & (1 << chan)) {
-            LLVMValueRef a0   = bld->a0  [attrib][chan];
-            LLVMValueRef dadx = bld->dadx[attrib][chan];
-            LLVMValueRef dady = bld->dady[attrib][chan];
-            LLVMValueRef res;
-
-            res = a0;
-
-            if (mode != TGSI_INTERPOLATE_CONSTANT) {
-               /* res = res + x * dadx */
-               res = lp_build_add(&bld->base, res, lp_build_mul(&bld->base, x, dadx));
-               /* res = res + y * dady */
-               res = lp_build_add(&bld->base, res, lp_build_mul(&bld->base, y, dady));
-            }
-
-            /* Keep the value of the attribue before perspective divide for faster updates */
-            bld->attribs_pre[attrib][chan] = res;
-
-            if (mode == TGSI_INTERPOLATE_PERSPECTIVE) {
-               LLVMValueRef w = bld->pos[3];
-               assert(attrib != 0);
-               if(!oow)
-                  oow = lp_build_rcp(&bld->base, w);
-               res = lp_build_mul(&bld->base, res, oow);
-            }
-
-            attrib_name(res, attrib, chan, "");
-
-            bld->attribs[attrib][chan] = res;
-         }
-      }
-   }
-}
-
-
-/**
- * Increment the shader input attribute values.
- * This is called when we move from one quad to the next.
- */
-static void
-attribs_update(struct lp_build_interp_soa_context *bld, int quad_index)
-{
-   LLVMValueRef oow = NULL;
-   unsigned attrib;
-   unsigned chan;
-
-   assert(quad_index < 4);
-
-   for(attrib = 0; attrib < bld->num_attribs; ++attrib) {
-      unsigned mask = bld->mask[attrib];
-      unsigned mode = bld->mode[attrib];
-
-      if (mode != TGSI_INTERPOLATE_CONSTANT) {
-         for(chan = 0; chan < NUM_CHANNELS; ++chan) {
-            if(mask & (1 << chan)) {
-               LLVMValueRef dadx = bld->dadx[attrib][chan];
-               LLVMValueRef dady = bld->dady[attrib][chan];
-               LLVMValueRef res;
-
-               res = bld->attribs_pre[attrib][chan];
-
-               if (quad_index == 1 || quad_index == 3) {
-                  /* top-right or bottom-right quad */
-                  /* build res = res + dadx + dadx */
-                  res = lp_build_add(&bld->base, res, dadx);
-                  res = lp_build_add(&bld->base, res, dadx);
-               }
-
-               if (quad_index == 2 || quad_index == 3) {
-                  /* bottom-left or bottom-right quad */
-                  /* build res = res + dady + dady */
-                  res = lp_build_add(&bld->base, res, dady);
-                  res = lp_build_add(&bld->base, res, dady);
-               }
-
-               //XXX bld->attribs_pre[attrib][chan] = res;
-
-               if (mode == TGSI_INTERPOLATE_PERSPECTIVE) {
-                  LLVMValueRef w = bld->pos[3];
-                  assert(attrib != 0);
-                  if(!oow)
-                     oow = lp_build_rcp(&bld->base, w);
-                  res = lp_build_mul(&bld->base, res, oow);
-               }
-
-               attrib_name(res, attrib, chan, "");
-
-               bld->attribs[attrib][chan] = res;
-            }
-         }
-      }
-   }
-}
-
-
-/**
- * Generate the position vectors.
- *
- * Parameter x0, y0 are the integer values with the quad upper left coordinates.
- */
-static void
-pos_init(struct lp_build_interp_soa_context *bld,
-         LLVMValueRef x0,
-         LLVMValueRef y0)
-{
-   lp_build_name(x0, "pos.x");
-   lp_build_name(y0, "pos.y");
-
-   bld->attribs[0][0] = x0;
-   bld->attribs[0][1] = y0;
-}
-
-
-/**
- * Update quad position values when moving to the next quad.
- */
-static void
-pos_update(struct lp_build_interp_soa_context *bld, int quad_index)
-{
-   LLVMValueRef x = bld->attribs[0][0];
-   LLVMValueRef y = bld->attribs[0][1];
-   const int xstep = 2, ystep = 2;
-
-   if (quad_index == 1 || quad_index == 3) {
-      /* top-right or bottom-right quad in block */
-      /* build x += xstep */
-      x = lp_build_add(&bld->base, x,
-                       lp_build_const_vec(bld->base.type, xstep));
-   }
-
-   if (quad_index == 2) {
-      /* bottom-left quad in block */
-      /* build y += ystep */
-      y = lp_build_add(&bld->base, y,
-                       lp_build_const_vec(bld->base.type, ystep));
-      /* build x -= xstep */
-      x = lp_build_sub(&bld->base, x,
-                       lp_build_const_vec(bld->base.type, xstep));
-   }
-
-   lp_build_name(x, "pos.x");
-   lp_build_name(y, "pos.y");
-
-   bld->attribs[0][0] = x;
-   bld->attribs[0][1] = y;
-}
-
-
-/**
- * Initialize fragment shader input attribute info.
- */
-void
-lp_build_interp_soa_init(struct lp_build_interp_soa_context *bld,
-                         const struct tgsi_token *tokens,
-                         boolean flatshade,
-                         LLVMBuilderRef builder,
-                         struct lp_type type,
-                         LLVMValueRef a0_ptr,
-                         LLVMValueRef dadx_ptr,
-                         LLVMValueRef dady_ptr,
-                         LLVMValueRef x0,
-                         LLVMValueRef y0)
-{
-   struct tgsi_parse_context parse;
-   struct tgsi_full_declaration *decl;
-
-   memset(bld, 0, sizeof *bld);
-
-   lp_build_context_init(&bld->base, builder, type);
-
-   /* For convenience */
-   bld->pos = bld->attribs[0];
-   bld->inputs = (const LLVMValueRef (*)[NUM_CHANNELS]) bld->attribs[1];
-
-   /* Position */
-   bld->num_attribs = 1;
-   bld->mask[0] = TGSI_WRITEMASK_ZW;
-   bld->mode[0] = TGSI_INTERPOLATE_LINEAR;
-
-   /* Inputs */
-   tgsi_parse_init( &parse, tokens );
-   while( !tgsi_parse_end_of_tokens( &parse ) ) {
-      tgsi_parse_token( &parse );
-
-      switch( parse.FullToken.Token.Type ) {
-      case TGSI_TOKEN_TYPE_DECLARATION:
-         decl = &parse.FullToken.FullDeclaration;
-         if( decl->Declaration.File == TGSI_FILE_INPUT ) {
-            unsigned first, last, mask;
-            unsigned attrib;
-
-            first = decl->Range.First;
-            last = decl->Range.Last;
-            mask = decl->Declaration.UsageMask;
-
-            for( attrib = first; attrib <= last; ++attrib ) {
-               bld->mask[1 + attrib] = mask;
-
-               /* XXX: have mesa set INTERP_CONSTANT in the fragment
-                * shader.
-                */
-               if (decl->Semantic.Name == TGSI_SEMANTIC_COLOR &&
-                   flatshade)
-                  bld->mode[1 + attrib] = TGSI_INTERPOLATE_CONSTANT;
-               else
-                  bld->mode[1 + attrib] = decl->Declaration.Interpolate;
-            }
-
-            bld->num_attribs = MAX2(bld->num_attribs, 1 + last + 1);
-         }
-         break;
-
-      case TGSI_TOKEN_TYPE_INSTRUCTION:
-      case TGSI_TOKEN_TYPE_IMMEDIATE:
-      case TGSI_TOKEN_TYPE_PROPERTY:
-         break;
-
-      default:
-         assert( 0 );
-      }
-   }
-   tgsi_parse_free( &parse );
-
-   coeffs_init(bld, a0_ptr, dadx_ptr, dady_ptr);
-
-   pos_init(bld, x0, y0);
-
-   attribs_init(bld);
-}
-
-
-/**
- * Advance the position and inputs to the given quad within the block.
- */
-void
-lp_build_interp_soa_update(struct lp_build_interp_soa_context *bld,
-                           int quad_index)
-{
-   assert(quad_index < 4);
-
-   pos_update(bld, quad_index);
-
-   attribs_update(bld, quad_index);
-}
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_interp.h b/src/gallium/auxiliary/gallivm/lp_bld_interp.h
deleted file mode 100644
index a4937bbb048..00000000000
--- a/src/gallium/auxiliary/gallivm/lp_bld_interp.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-/**
- * @file
- * Position and shader input interpolation.
- *
- * Special attention is given to the interpolation of side by side quads.
- * Multiplications are made only for the first quad. Interpolation of
- * inputs for posterior quads are done exclusively with additions, and
- * perspective divide if necessary.
- *
- * @author Jose Fonseca <[email protected]>
- */
-
-#ifndef LP_BLD_INTERP_H
-#define LP_BLD_INTERP_H
-
-
-#include "gallivm/lp_bld.h"
-
-#include "tgsi/tgsi_exec.h"
-
-#include "lp_bld_type.h"
-
-
-struct tgsi_token;
-
-
-struct lp_build_interp_soa_context
-{
-   struct lp_build_context base;
-
-   unsigned num_attribs;
-   unsigned mask[1 + PIPE_MAX_SHADER_INPUTS];
-   unsigned mode[1 + PIPE_MAX_SHADER_INPUTS];
-
-   LLVMValueRef a0  [1 + PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS];
-   LLVMValueRef dadx[1 + PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS];
-   LLVMValueRef dady[1 + PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS];
-
-   /* Attribute values before perspective divide */
-   LLVMValueRef attribs_pre[1 + PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS];
-
-   LLVMValueRef attribs[1 + PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS];
-
-   /*
-    * Convenience pointers. Callers may access this one.
-    */
-   const LLVMValueRef *pos;
-   const LLVMValueRef (*inputs)[NUM_CHANNELS];
-};
-
-
-void
-lp_build_interp_soa_init(struct lp_build_interp_soa_context *bld,
-                         const struct tgsi_token *tokens,
-                         boolean flatshade,
-                         LLVMBuilderRef builder,
-                         struct lp_type type,
-                         LLVMValueRef a0_ptr,
-                         LLVMValueRef dadx_ptr,
-                         LLVMValueRef dady_ptr,
-                         LLVMValueRef x0,
-                         LLVMValueRef y0);
-
-void
-lp_build_interp_soa_update(struct lp_build_interp_soa_context *bld,
-                           int quad_index);
-
-
-#endif /* LP_BLD_INTERP_H */