2009-07-26 23:44:38 +01:00
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/**************************************************************************
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*
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2009-08-14 10:27:32 +01:00
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* Copyright 2009 VMware, Inc.
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2009-07-26 23:44:38 +01:00
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* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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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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*
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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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*
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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.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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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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*
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**************************************************************************/
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2009-08-22 22:26:55 +01:00
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/**
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* @file
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* Code generate the whole fragment pipeline.
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*
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* The fragment pipeline consists of the following stages:
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* - stipple (TBI)
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* - early depth test
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* - fragment shader
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* - alpha test
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* - depth/stencil test (stencil TBI)
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* - blending
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*
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* This file has only the glue to assembly the fragment pipeline. The actual
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* plumbing of converting Gallium state into LLVM IR is done elsewhere, in the
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* lp_bld_*.[ch] files, and in a complete generic and reusable way. Here we
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* muster the LLVM JIT execution engine to create a function that follows an
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* established binary interface and that can be called from C directly.
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*
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* A big source of complexity here is that we often want to run different
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* stages with different precisions and data types and precisions. For example,
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* the fragment shader needs typically to be done in floats, but the
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* depth/stencil test and blending is better done in the type that most closely
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* matches the depth/stencil and color buffer respectively.
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*
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* Since the width of a SIMD vector register stays the same regardless of the
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* element type, different types imply different number of elements, so we must
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* code generate more instances of the stages with larger types to be able to
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* feed/consume the stages with smaller types.
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*
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* @author Jose Fonseca <jfonseca@vmware.com>
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*/
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2010-01-08 21:49:34 +00:00
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#include <limits.h>
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2009-07-26 23:44:38 +01:00
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#include "pipe/p_defines.h"
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#include "util/u_memory.h"
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2009-08-21 07:48:04 +01:00
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#include "util/u_format.h"
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2009-08-19 20:42:50 +01:00
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#include "util/u_debug_dump.h"
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2009-07-26 23:44:38 +01:00
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#include "pipe/internal/p_winsys_screen.h"
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#include "pipe/p_shader_tokens.h"
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#include "draw/draw_context.h"
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#include "tgsi/tgsi_dump.h"
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#include "tgsi/tgsi_scan.h"
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#include "tgsi/tgsi_parse.h"
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2009-08-14 10:27:32 +01:00
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#include "lp_bld_type.h"
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2009-08-23 12:28:34 +01:00
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#include "lp_bld_const.h"
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2009-08-21 07:48:04 +01:00
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#include "lp_bld_conv.h"
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2009-08-25 08:05:31 +01:00
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#include "lp_bld_intr.h"
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2009-08-22 12:39:44 +01:00
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#include "lp_bld_logic.h"
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2009-08-21 07:48:04 +01:00
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#include "lp_bld_depth.h"
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2009-08-23 12:28:34 +01:00
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#include "lp_bld_interp.h"
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2009-08-14 10:27:32 +01:00
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#include "lp_bld_tgsi.h"
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2009-08-19 20:42:50 +01:00
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#include "lp_bld_alpha.h"
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2009-08-22 12:39:44 +01:00
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#include "lp_bld_blend.h"
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2009-08-19 17:58:04 +01:00
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#include "lp_bld_swizzle.h"
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2009-08-21 13:49:10 +01:00
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#include "lp_bld_flow.h"
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2009-08-16 11:50:17 +01:00
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#include "lp_bld_debug.h"
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2009-08-14 10:27:32 +01:00
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#include "lp_screen.h"
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#include "lp_context.h"
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2009-10-09 11:29:33 +01:00
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#include "lp_buffer.h"
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2009-10-09 15:52:18 +01:00
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#include "lp_setup.h"
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2009-08-14 10:27:32 +01:00
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#include "lp_state.h"
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2009-09-06 11:20:14 +01:00
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#include "lp_tex_sample.h"
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2009-10-09 14:59:35 +01:00
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#include "lp_debug.h"
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2009-08-14 10:27:32 +01:00
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2009-08-19 17:58:04 +01:00
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static const unsigned char quad_offset_x[4] = {0, 1, 0, 1};
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static const unsigned char quad_offset_y[4] = {0, 0, 1, 1};
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2009-08-23 12:28:34 +01:00
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/*
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* Derive from the quad's upper left scalar coordinates the coordinates for
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* all other quad pixels
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2009-08-22 22:26:55 +01:00
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*/
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2009-08-19 17:58:04 +01:00
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static void
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2009-08-23 12:28:34 +01:00
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generate_pos0(LLVMBuilderRef builder,
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LLVMValueRef x,
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LLVMValueRef y,
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LLVMValueRef *x0,
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LLVMValueRef *y0)
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2009-08-19 17:58:04 +01:00
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{
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LLVMTypeRef int_elem_type = LLVMInt32Type();
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LLVMTypeRef int_vec_type = LLVMVectorType(int_elem_type, QUAD_SIZE);
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LLVMTypeRef elem_type = LLVMFloatType();
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LLVMTypeRef vec_type = LLVMVectorType(elem_type, QUAD_SIZE);
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LLVMValueRef x_offsets[QUAD_SIZE];
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LLVMValueRef y_offsets[QUAD_SIZE];
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unsigned i;
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x = lp_build_broadcast(builder, int_vec_type, x);
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y = lp_build_broadcast(builder, int_vec_type, y);
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for(i = 0; i < QUAD_SIZE; ++i) {
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x_offsets[i] = LLVMConstInt(int_elem_type, quad_offset_x[i], 0);
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y_offsets[i] = LLVMConstInt(int_elem_type, quad_offset_y[i], 0);
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}
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x = LLVMBuildAdd(builder, x, LLVMConstVector(x_offsets, QUAD_SIZE), "");
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y = LLVMBuildAdd(builder, y, LLVMConstVector(y_offsets, QUAD_SIZE), "");
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2009-08-23 12:28:34 +01:00
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*x0 = LLVMBuildSIToFP(builder, x, vec_type, "");
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*y0 = LLVMBuildSIToFP(builder, y, vec_type, "");
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2009-08-19 17:58:04 +01:00
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}
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2009-08-22 22:26:55 +01:00
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/**
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* Generate the depth test.
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*/
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2009-08-21 07:48:04 +01:00
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static void
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2009-09-09 21:16:06 +01:00
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generate_depth(LLVMBuilderRef builder,
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const struct lp_fragment_shader_variant_key *key,
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2009-09-14 11:05:06 +01:00
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struct lp_type src_type,
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2009-08-22 12:39:44 +01:00
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struct lp_build_mask_context *mask,
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LLVMValueRef src,
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LLVMValueRef dst_ptr)
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2009-08-21 07:48:04 +01:00
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{
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const struct util_format_description *format_desc;
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2009-09-14 11:05:06 +01:00
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struct lp_type dst_type;
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2009-08-21 07:48:04 +01:00
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2009-09-09 21:16:06 +01:00
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if(!key->depth.enabled)
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2009-08-21 07:48:04 +01:00
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return;
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2009-09-09 21:16:06 +01:00
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format_desc = util_format_description(key->zsbuf_format);
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2009-08-21 07:48:04 +01:00
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assert(format_desc);
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2009-11-11 01:52:53 +00:00
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/*
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* Depths are expected to be between 0 and 1, even if they are stored in
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* floats. Setting these bits here will ensure that the lp_build_conv() call
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* below won't try to unnecessarily clamp the incoming values.
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*/
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if(src_type.floating) {
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src_type.sign = FALSE;
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src_type.norm = TRUE;
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}
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else {
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assert(!src_type.sign);
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assert(src_type.norm);
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}
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2009-08-22 22:26:55 +01:00
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/* Pick the depth type. */
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2009-08-21 07:48:04 +01:00
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dst_type = lp_depth_type(format_desc, src_type.width*src_type.length);
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2009-08-22 22:26:55 +01:00
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/* FIXME: Cope with a depth test type with a different bit width. */
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2009-08-21 07:48:04 +01:00
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assert(dst_type.width == src_type.width);
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assert(dst_type.length == src_type.length);
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lp_build_conv(builder, src_type, dst_type, &src, 1, &src, 1);
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2009-11-11 01:52:53 +00:00
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dst_ptr = LLVMBuildBitCast(builder,
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dst_ptr,
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LLVMPointerType(lp_build_vec_type(dst_type), 0), "");
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2009-08-21 07:48:04 +01:00
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lp_build_depth_test(builder,
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2009-09-09 21:16:06 +01:00
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&key->depth,
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2009-08-21 07:48:04 +01:00
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dst_type,
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format_desc,
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mask,
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src,
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dst_ptr);
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}
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2009-12-16 23:02:59 +00:00
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/**
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* Generate the code to do inside/outside triangle testing for the
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* four pixels in a 2x2 quad. This will set the four elements of the
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* quad mask vector to 0 or ~0.
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* \param i which quad of the quad group to test, in [0,3]
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*/
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static void
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generate_tri_edge_mask(LLVMBuilderRef builder,
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unsigned i,
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LLVMValueRef *mask, /* ivec4, out */
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LLVMValueRef c0, /* int32 */
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LLVMValueRef c1, /* int32 */
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LLVMValueRef c2, /* int32 */
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LLVMValueRef step0_ptr, /* ivec4 */
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LLVMValueRef step1_ptr, /* ivec4 */
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LLVMValueRef step2_ptr) /* ivec4 */
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{
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2010-01-12 20:01:32 +00:00
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#define OPTIMIZE_IN_OUT_TEST 0
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#if OPTIMIZE_IN_OUT_TEST
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2010-01-08 21:49:34 +00:00
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struct lp_build_if_state ifctx;
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2010-01-12 20:01:32 +00:00
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LLVMValueRef not_draw_all;
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#endif
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struct lp_build_flow_context *flow;
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2009-12-16 23:02:59 +00:00
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struct lp_type i32_type;
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2010-01-08 21:49:34 +00:00
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LLVMTypeRef i32vec4_type, mask_type;
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2009-12-16 23:02:59 +00:00
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LLVMValueRef c0_vec, c1_vec, c2_vec;
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2010-01-08 21:49:34 +00:00
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LLVMValueRef in_out_mask;
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2009-12-16 23:02:59 +00:00
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assert(i < 4);
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/* int32 vector type */
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memset(&i32_type, 0, sizeof i32_type);
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i32_type.floating = FALSE; /* values are integers */
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i32_type.sign = TRUE; /* values are signed */
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i32_type.norm = FALSE; /* values are not normalized */
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i32_type.width = 32; /* 32-bit int values */
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i32_type.length = 4; /* 4 elements per vector */
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i32vec4_type = lp_build_int32_vec4_type();
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2010-01-08 21:49:34 +00:00
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mask_type = LLVMIntType(32 * 4);
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/*
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* Use a conditional here to do detailed pixel in/out testing.
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2010-01-11 22:30:17 +00:00
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* We only have to do this if c0 != INT_MIN.
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2010-01-08 21:49:34 +00:00
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*/
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flow = lp_build_flow_create(builder);
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lp_build_flow_scope_begin(flow);
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2009-12-16 23:02:59 +00:00
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2010-01-11 19:59:36 +00:00
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{
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2010-01-08 21:49:34 +00:00
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#if OPTIMIZE_IN_OUT_TEST
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2010-01-11 22:30:17 +00:00
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/* not_draw_all = (c0 != INT_MIN) */
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2010-01-08 21:49:34 +00:00
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not_draw_all = LLVMBuildICmp(builder,
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2010-01-11 19:59:36 +00:00
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LLVMIntNE,
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c0,
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LLVMConstInt(LLVMInt32Type(), INT_MIN, 0),
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2010-01-08 21:49:34 +00:00
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"");
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2009-12-16 23:02:59 +00:00
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2010-01-11 19:59:36 +00:00
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in_out_mask = lp_build_int_const_scalar(i32_type, ~0);
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2010-01-08 21:49:34 +00:00
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lp_build_flow_scope_declare(flow, &in_out_mask);
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2009-12-16 23:02:59 +00:00
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2010-01-11 22:30:17 +00:00
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/* if (not_draw_all) {... */
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2010-01-08 21:49:34 +00:00
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lp_build_if(&ifctx, flow, builder, not_draw_all);
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#endif
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{
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LLVMValueRef step0_vec, step1_vec, step2_vec;
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LLVMValueRef m0_vec, m1_vec, m2_vec;
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LLVMValueRef index, m;
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2010-01-11 19:59:36 +00:00
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/* c0_vec = {c0, c0, c0, c0}
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* Note that we emit this code four times but LLVM optimizes away
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* three instances of it.
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*/
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c0_vec = lp_build_broadcast(builder, i32vec4_type, c0);
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c1_vec = lp_build_broadcast(builder, i32vec4_type, c1);
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c2_vec = lp_build_broadcast(builder, i32vec4_type, c2);
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lp_build_name(c0_vec, "edgeconst0vec");
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lp_build_name(c1_vec, "edgeconst1vec");
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lp_build_name(c2_vec, "edgeconst2vec");
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2010-01-11 22:30:17 +00:00
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/* load step0vec, step1, step2 vec from memory */
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2010-01-08 21:49:34 +00:00
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index = LLVMConstInt(LLVMInt32Type(), i, 0);
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step0_vec = LLVMBuildLoad(builder, LLVMBuildGEP(builder, step0_ptr, &index, 1, ""), "");
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step1_vec = LLVMBuildLoad(builder, LLVMBuildGEP(builder, step1_ptr, &index, 1, ""), "");
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step2_vec = LLVMBuildLoad(builder, LLVMBuildGEP(builder, step2_ptr, &index, 1, ""), "");
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lp_build_name(step0_vec, "step0vec");
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lp_build_name(step1_vec, "step1vec");
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lp_build_name(step2_vec, "step2vec");
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2010-01-11 22:30:17 +00:00
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/* m0_vec = step0_ptr[i] > c0_vec */
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2010-01-08 21:49:34 +00:00
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m0_vec = lp_build_compare(builder, i32_type, PIPE_FUNC_GREATER, step0_vec, c0_vec);
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|
m1_vec = lp_build_compare(builder, i32_type, PIPE_FUNC_GREATER, step1_vec, c1_vec);
|
|
|
|
m2_vec = lp_build_compare(builder, i32_type, PIPE_FUNC_GREATER, step2_vec, c2_vec);
|
|
|
|
|
2010-01-11 22:30:17 +00:00
|
|
|
/* in_out_mask = m0_vec & m1_vec & m2_vec */
|
2010-01-08 21:49:34 +00:00
|
|
|
m = LLVMBuildAnd(builder, m0_vec, m1_vec, "");
|
|
|
|
in_out_mask = LLVMBuildAnd(builder, m, m2_vec, "");
|
|
|
|
lp_build_name(in_out_mask, "inoutmaskvec");
|
|
|
|
}
|
|
|
|
#if OPTIMIZE_IN_OUT_TEST
|
|
|
|
lp_build_endif(&ifctx);
|
|
|
|
#endif
|
2009-12-17 17:52:50 +00:00
|
|
|
|
2010-01-11 19:59:36 +00:00
|
|
|
}
|
2010-01-08 21:49:34 +00:00
|
|
|
lp_build_flow_scope_end(flow);
|
|
|
|
lp_build_flow_destroy(flow);
|
2009-12-17 17:52:50 +00:00
|
|
|
|
2010-01-11 22:30:17 +00:00
|
|
|
/* This is the initial alive/dead pixel mask for a quad of four pixels.
|
|
|
|
* It's an int[4] vector with each word set to 0 or ~0.
|
|
|
|
* Words will get cleared when pixels faile the Z test, etc.
|
|
|
|
*/
|
2010-01-08 21:49:34 +00:00
|
|
|
*mask = in_out_mask;
|
2009-12-16 23:02:59 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-01-15 02:15:00 +00:00
|
|
|
static LLVMValueRef
|
|
|
|
generate_scissor_test(LLVMBuilderRef builder,
|
|
|
|
LLVMValueRef context_ptr,
|
|
|
|
const struct lp_build_interp_soa_context *interp,
|
|
|
|
struct lp_type type)
|
|
|
|
{
|
|
|
|
LLVMTypeRef vec_type = lp_build_vec_type(type);
|
|
|
|
LLVMValueRef xpos = interp->pos[0], ypos = interp->pos[1];
|
|
|
|
LLVMValueRef xmin, ymin, xmax, ymax;
|
|
|
|
LLVMValueRef m0, m1, m2, m3, m;
|
|
|
|
|
|
|
|
/* xpos, ypos contain the window coords for the four pixels in the quad */
|
|
|
|
assert(xpos);
|
|
|
|
assert(ypos);
|
|
|
|
|
|
|
|
/* get the current scissor bounds, convert to vectors */
|
|
|
|
xmin = lp_jit_context_scissor_xmin_value(builder, context_ptr);
|
|
|
|
xmin = lp_build_broadcast(builder, vec_type, xmin);
|
|
|
|
|
|
|
|
ymin = lp_jit_context_scissor_ymin_value(builder, context_ptr);
|
|
|
|
ymin = lp_build_broadcast(builder, vec_type, ymin);
|
|
|
|
|
|
|
|
xmax = lp_jit_context_scissor_xmax_value(builder, context_ptr);
|
|
|
|
xmax = lp_build_broadcast(builder, vec_type, xmax);
|
|
|
|
|
|
|
|
ymax = lp_jit_context_scissor_ymax_value(builder, context_ptr);
|
|
|
|
ymax = lp_build_broadcast(builder, vec_type, ymax);
|
|
|
|
|
|
|
|
/* compare the fragment's position coordinates against the scissor bounds */
|
|
|
|
m0 = lp_build_compare(builder, type, PIPE_FUNC_GEQUAL, xpos, xmin);
|
|
|
|
m1 = lp_build_compare(builder, type, PIPE_FUNC_GEQUAL, ypos, ymin);
|
|
|
|
m2 = lp_build_compare(builder, type, PIPE_FUNC_LESS, xpos, xmax);
|
|
|
|
m3 = lp_build_compare(builder, type, PIPE_FUNC_LESS, ypos, ymax);
|
|
|
|
|
|
|
|
/* AND all the masks together */
|
|
|
|
m = LLVMBuildAnd(builder, m0, m1, "");
|
|
|
|
m = LLVMBuildAnd(builder, m, m2, "");
|
|
|
|
m = LLVMBuildAnd(builder, m, m3, "");
|
|
|
|
|
|
|
|
lp_build_name(m, "scissormask");
|
|
|
|
|
|
|
|
return m;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-01-15 18:21:16 +00:00
|
|
|
static LLVMValueRef
|
|
|
|
build_int32_vec_const(int value)
|
|
|
|
{
|
|
|
|
struct lp_type i32_type;
|
|
|
|
|
|
|
|
memset(&i32_type, 0, sizeof i32_type);
|
|
|
|
i32_type.floating = FALSE; /* values are integers */
|
|
|
|
i32_type.sign = TRUE; /* values are signed */
|
|
|
|
i32_type.norm = FALSE; /* values are not normalized */
|
|
|
|
i32_type.width = 32; /* 32-bit int values */
|
|
|
|
i32_type.length = 4; /* 4 elements per vector */
|
|
|
|
return lp_build_int_const_scalar(i32_type, value);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
2009-08-22 12:39:44 +01:00
|
|
|
/**
|
2009-08-22 22:26:55 +01:00
|
|
|
* Generate the fragment shader, depth/stencil test, and alpha tests.
|
2009-12-16 23:02:59 +00:00
|
|
|
* \param i which quad in the tile, in range [0,3]
|
2010-01-15 18:21:16 +00:00
|
|
|
* \param do_tri_test if 1, do triangle edge in/out testing
|
2009-08-22 12:39:44 +01:00
|
|
|
*/
|
|
|
|
static void
|
|
|
|
generate_fs(struct llvmpipe_context *lp,
|
|
|
|
struct lp_fragment_shader *shader,
|
|
|
|
const struct lp_fragment_shader_variant_key *key,
|
|
|
|
LLVMBuilderRef builder,
|
2009-09-14 11:05:06 +01:00
|
|
|
struct lp_type type,
|
2009-08-23 07:38:41 +01:00
|
|
|
LLVMValueRef context_ptr,
|
2009-08-22 12:39:44 +01:00
|
|
|
unsigned i,
|
2009-08-23 12:28:34 +01:00
|
|
|
const struct lp_build_interp_soa_context *interp,
|
2009-09-06 11:20:14 +01:00
|
|
|
struct lp_build_sampler_soa *sampler,
|
2009-08-22 12:39:44 +01:00
|
|
|
LLVMValueRef *pmask,
|
2010-01-10 17:22:09 +00:00
|
|
|
LLVMValueRef (*color)[4],
|
2009-12-16 23:02:59 +00:00
|
|
|
LLVMValueRef depth_ptr,
|
2010-01-15 18:21:16 +00:00
|
|
|
unsigned do_tri_test,
|
2009-12-16 23:02:59 +00:00
|
|
|
LLVMValueRef c0,
|
|
|
|
LLVMValueRef c1,
|
|
|
|
LLVMValueRef c2,
|
|
|
|
LLVMValueRef step0_ptr,
|
|
|
|
LLVMValueRef step1_ptr,
|
|
|
|
LLVMValueRef step2_ptr)
|
2009-08-14 10:27:32 +01:00
|
|
|
{
|
|
|
|
const struct tgsi_token *tokens = shader->base.tokens;
|
|
|
|
LLVMTypeRef elem_type;
|
|
|
|
LLVMTypeRef vec_type;
|
2009-08-16 21:01:57 +01:00
|
|
|
LLVMTypeRef int_vec_type;
|
2009-08-23 07:38:41 +01:00
|
|
|
LLVMValueRef consts_ptr;
|
2009-08-22 12:39:44 +01:00
|
|
|
LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][NUM_CHANNELS];
|
2009-08-23 12:28:34 +01:00
|
|
|
LLVMValueRef z = interp->pos[2];
|
2009-09-10 11:44:03 +01:00
|
|
|
struct lp_build_flow_context *flow;
|
2009-08-22 12:39:44 +01:00
|
|
|
struct lp_build_mask_context mask;
|
|
|
|
boolean early_depth_test;
|
|
|
|
unsigned attrib;
|
|
|
|
unsigned chan;
|
2010-01-10 17:22:09 +00:00
|
|
|
unsigned cbuf;
|
2009-08-22 12:39:44 +01:00
|
|
|
|
2009-12-16 23:02:59 +00:00
|
|
|
assert(i < 4);
|
|
|
|
|
2009-08-22 12:39:44 +01:00
|
|
|
elem_type = lp_build_elem_type(type);
|
|
|
|
vec_type = lp_build_vec_type(type);
|
|
|
|
int_vec_type = lp_build_int_vec_type(type);
|
|
|
|
|
2009-08-23 07:38:41 +01:00
|
|
|
consts_ptr = lp_jit_context_constants(builder, context_ptr);
|
|
|
|
|
2009-09-10 11:44:03 +01:00
|
|
|
flow = lp_build_flow_create(builder);
|
|
|
|
|
|
|
|
memset(outputs, 0, sizeof outputs);
|
|
|
|
|
|
|
|
lp_build_flow_scope_begin(flow);
|
|
|
|
|
|
|
|
/* Declare the color and z variables */
|
2010-01-10 17:22:09 +00:00
|
|
|
for(cbuf = 0; cbuf < key->nr_cbufs; cbuf++) {
|
|
|
|
for(chan = 0; chan < NUM_CHANNELS; ++chan) {
|
|
|
|
color[cbuf][chan] = LLVMGetUndef(vec_type);
|
|
|
|
lp_build_flow_scope_declare(flow, &color[cbuf][chan]);
|
|
|
|
}
|
2009-09-10 11:44:03 +01:00
|
|
|
}
|
2009-09-10 13:35:39 +01:00
|
|
|
lp_build_flow_scope_declare(flow, &z);
|
2009-09-10 11:44:03 +01:00
|
|
|
|
2009-12-16 23:02:59 +00:00
|
|
|
/* do triangle edge testing */
|
2010-01-15 18:21:16 +00:00
|
|
|
if (do_tri_test) {
|
|
|
|
generate_tri_edge_mask(builder, i, pmask,
|
|
|
|
c0, c1, c2, step0_ptr, step1_ptr, step2_ptr);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
*pmask = build_int32_vec_const(~0);
|
|
|
|
}
|
2009-12-16 23:02:59 +00:00
|
|
|
|
2009-12-17 17:52:50 +00:00
|
|
|
/* 'mask' will control execution based on quad's pixel alive/killed state */
|
2009-09-10 11:44:03 +01:00
|
|
|
lp_build_mask_begin(&mask, flow, type, *pmask);
|
2009-08-22 12:39:44 +01:00
|
|
|
|
2010-01-15 02:15:00 +00:00
|
|
|
if (key->scissor) {
|
|
|
|
LLVMValueRef smask =
|
|
|
|
generate_scissor_test(builder, context_ptr, interp, type);
|
|
|
|
lp_build_mask_update(&mask, smask);
|
|
|
|
}
|
2009-12-16 23:02:59 +00:00
|
|
|
|
2009-08-22 12:39:44 +01:00
|
|
|
early_depth_test =
|
2009-09-09 21:16:06 +01:00
|
|
|
key->depth.enabled &&
|
|
|
|
!key->alpha.enabled &&
|
|
|
|
!shader->info.uses_kill &&
|
|
|
|
!shader->info.writes_z;
|
2009-08-22 12:39:44 +01:00
|
|
|
|
|
|
|
if(early_depth_test)
|
2009-09-09 21:16:06 +01:00
|
|
|
generate_depth(builder, key,
|
2009-08-23 12:28:34 +01:00
|
|
|
type, &mask,
|
|
|
|
z, depth_ptr);
|
2009-08-22 12:39:44 +01:00
|
|
|
|
|
|
|
lp_build_tgsi_soa(builder, tokens, type, &mask,
|
2009-08-23 12:28:34 +01:00
|
|
|
consts_ptr, interp->pos, interp->inputs,
|
2009-09-06 11:20:14 +01:00
|
|
|
outputs, sampler);
|
2009-08-22 12:39:44 +01:00
|
|
|
|
|
|
|
for (attrib = 0; attrib < shader->info.num_outputs; ++attrib) {
|
|
|
|
for(chan = 0; chan < NUM_CHANNELS; ++chan) {
|
|
|
|
if(outputs[attrib][chan]) {
|
|
|
|
lp_build_name(outputs[attrib][chan], "output%u.%u.%c", i, attrib, "xyzw"[chan]);
|
|
|
|
|
|
|
|
switch (shader->info.output_semantic_name[attrib]) {
|
|
|
|
case TGSI_SEMANTIC_COLOR:
|
|
|
|
{
|
|
|
|
unsigned cbuf = shader->info.output_semantic_index[attrib];
|
|
|
|
|
|
|
|
lp_build_name(outputs[attrib][chan], "color%u.%u.%c", i, attrib, "rgba"[chan]);
|
|
|
|
|
|
|
|
/* Alpha test */
|
|
|
|
/* XXX: should the alpha reference value be passed separately? */
|
2010-01-10 17:22:09 +00:00
|
|
|
/* XXX: should only test the final assignment to alpha */
|
2009-08-23 07:38:41 +01:00
|
|
|
if(cbuf == 0 && chan == 3) {
|
|
|
|
LLVMValueRef alpha = outputs[attrib][chan];
|
|
|
|
LLVMValueRef alpha_ref_value;
|
|
|
|
alpha_ref_value = lp_jit_context_alpha_ref_value(builder, context_ptr);
|
|
|
|
alpha_ref_value = lp_build_broadcast(builder, vec_type, alpha_ref_value);
|
2009-08-22 12:39:44 +01:00
|
|
|
lp_build_alpha_test(builder, &key->alpha, type,
|
2009-08-23 07:38:41 +01:00
|
|
|
&mask, alpha, alpha_ref_value);
|
|
|
|
}
|
2009-08-22 12:39:44 +01:00
|
|
|
|
2010-01-10 17:22:09 +00:00
|
|
|
color[cbuf][chan] = outputs[attrib][chan];
|
2009-08-22 12:39:44 +01:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
case TGSI_SEMANTIC_POSITION:
|
|
|
|
if(chan == 2)
|
2009-08-23 12:28:34 +01:00
|
|
|
z = outputs[attrib][chan];
|
2009-08-22 12:39:44 +01:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-09-10 13:35:39 +01:00
|
|
|
if(!early_depth_test)
|
|
|
|
generate_depth(builder, key,
|
|
|
|
type, &mask,
|
|
|
|
z, depth_ptr);
|
|
|
|
|
|
|
|
lp_build_mask_end(&mask);
|
|
|
|
|
|
|
|
lp_build_flow_scope_end(flow);
|
|
|
|
|
2009-09-10 11:44:03 +01:00
|
|
|
lp_build_flow_destroy(flow);
|
2009-08-22 12:39:44 +01:00
|
|
|
|
|
|
|
*pmask = mask.value;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
2009-08-22 22:26:55 +01:00
|
|
|
* Generate color blending and color output.
|
2009-08-22 12:39:44 +01:00
|
|
|
*/
|
|
|
|
static void
|
|
|
|
generate_blend(const struct pipe_blend_state *blend,
|
|
|
|
LLVMBuilderRef builder,
|
2009-09-14 11:05:06 +01:00
|
|
|
struct lp_type type,
|
2009-08-23 07:38:41 +01:00
|
|
|
LLVMValueRef context_ptr,
|
2009-08-22 12:39:44 +01:00
|
|
|
LLVMValueRef mask,
|
|
|
|
LLVMValueRef *src,
|
|
|
|
LLVMValueRef dst_ptr)
|
|
|
|
{
|
|
|
|
struct lp_build_context bld;
|
2009-09-10 12:01:42 +01:00
|
|
|
struct lp_build_flow_context *flow;
|
|
|
|
struct lp_build_mask_context mask_ctx;
|
2009-08-22 12:39:44 +01:00
|
|
|
LLVMTypeRef vec_type;
|
|
|
|
LLVMTypeRef int_vec_type;
|
2009-08-23 07:38:41 +01:00
|
|
|
LLVMValueRef const_ptr;
|
2009-08-22 12:39:44 +01:00
|
|
|
LLVMValueRef con[4];
|
|
|
|
LLVMValueRef dst[4];
|
|
|
|
LLVMValueRef res[4];
|
|
|
|
unsigned chan;
|
|
|
|
|
2009-09-10 12:01:42 +01:00
|
|
|
lp_build_context_init(&bld, builder, type);
|
|
|
|
|
|
|
|
flow = lp_build_flow_create(builder);
|
2010-01-08 21:49:34 +00:00
|
|
|
|
|
|
|
/* we'll use this mask context to skip blending if all pixels are dead */
|
2009-09-10 12:01:42 +01:00
|
|
|
lp_build_mask_begin(&mask_ctx, flow, type, mask);
|
|
|
|
|
2009-08-22 12:39:44 +01:00
|
|
|
vec_type = lp_build_vec_type(type);
|
|
|
|
int_vec_type = lp_build_int_vec_type(type);
|
|
|
|
|
2009-08-23 07:38:41 +01:00
|
|
|
const_ptr = lp_jit_context_blend_color(builder, context_ptr);
|
|
|
|
const_ptr = LLVMBuildBitCast(builder, const_ptr,
|
|
|
|
LLVMPointerType(vec_type, 0), "");
|
|
|
|
|
2009-08-22 12:39:44 +01:00
|
|
|
for(chan = 0; chan < 4; ++chan) {
|
|
|
|
LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), chan, 0);
|
2009-08-23 07:38:41 +01:00
|
|
|
con[chan] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, const_ptr, &index, 1, ""), "");
|
2009-08-22 12:39:44 +01:00
|
|
|
|
|
|
|
dst[chan] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, dst_ptr, &index, 1, ""), "");
|
|
|
|
|
|
|
|
lp_build_name(con[chan], "con.%c", "rgba"[chan]);
|
|
|
|
lp_build_name(dst[chan], "dst.%c", "rgba"[chan]);
|
|
|
|
}
|
|
|
|
|
|
|
|
lp_build_blend_soa(builder, blend, type, src, dst, con, res);
|
|
|
|
|
|
|
|
for(chan = 0; chan < 4; ++chan) {
|
2009-09-10 12:37:44 +01:00
|
|
|
if(blend->colormask & (1 << chan)) {
|
|
|
|
LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), chan, 0);
|
|
|
|
lp_build_name(res[chan], "res.%c", "rgba"[chan]);
|
|
|
|
res[chan] = lp_build_select(&bld, mask, res[chan], dst[chan]);
|
|
|
|
LLVMBuildStore(builder, res[chan], LLVMBuildGEP(builder, dst_ptr, &index, 1, ""));
|
|
|
|
}
|
2009-08-22 12:39:44 +01:00
|
|
|
}
|
2009-09-10 12:01:42 +01:00
|
|
|
|
|
|
|
lp_build_mask_end(&mask_ctx);
|
|
|
|
lp_build_flow_destroy(flow);
|
2009-08-22 12:39:44 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-08-22 22:26:55 +01:00
|
|
|
/**
|
|
|
|
* Generate the runtime callable function for the whole fragment pipeline.
|
2009-12-02 22:13:45 +00:00
|
|
|
* Note that the function which we generate operates on a block of 16
|
|
|
|
* pixels at at time. The block contains 2x2 quads. Each quad contains
|
|
|
|
* 2x2 pixels.
|
2009-08-22 22:26:55 +01:00
|
|
|
*/
|
2010-01-11 20:16:00 +00:00
|
|
|
static void
|
2009-08-22 12:39:44 +01:00
|
|
|
generate_fragment(struct llvmpipe_context *lp,
|
|
|
|
struct lp_fragment_shader *shader,
|
2010-01-15 18:21:16 +00:00
|
|
|
struct lp_fragment_shader_variant *variant,
|
|
|
|
unsigned do_tri_test)
|
2009-08-22 12:39:44 +01:00
|
|
|
{
|
|
|
|
struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
|
2010-01-11 20:16:00 +00:00
|
|
|
const struct lp_fragment_shader_variant_key *key = &variant->key;
|
2009-09-14 11:05:06 +01:00
|
|
|
struct lp_type fs_type;
|
|
|
|
struct lp_type blend_type;
|
2009-08-22 12:39:44 +01:00
|
|
|
LLVMTypeRef fs_elem_type;
|
|
|
|
LLVMTypeRef fs_vec_type;
|
|
|
|
LLVMTypeRef fs_int_vec_type;
|
|
|
|
LLVMTypeRef blend_vec_type;
|
|
|
|
LLVMTypeRef blend_int_vec_type;
|
2009-12-16 23:02:59 +00:00
|
|
|
LLVMTypeRef arg_types[14];
|
2009-08-14 10:27:32 +01:00
|
|
|
LLVMTypeRef func_type;
|
2009-12-16 23:02:59 +00:00
|
|
|
LLVMTypeRef int32_vec4_type = lp_build_int32_vec4_type();
|
2009-08-23 06:35:09 +01:00
|
|
|
LLVMValueRef context_ptr;
|
2009-08-19 17:58:04 +01:00
|
|
|
LLVMValueRef x;
|
|
|
|
LLVMValueRef y;
|
2009-08-14 10:27:32 +01:00
|
|
|
LLVMValueRef a0_ptr;
|
|
|
|
LLVMValueRef dadx_ptr;
|
|
|
|
LLVMValueRef dady_ptr;
|
2010-01-10 17:22:09 +00:00
|
|
|
LLVMValueRef color_ptr_ptr;
|
2009-08-19 09:24:20 +01:00
|
|
|
LLVMValueRef depth_ptr;
|
2009-12-16 23:02:59 +00:00
|
|
|
LLVMValueRef c0, c1, c2, step0_ptr, step1_ptr, step2_ptr;
|
2009-08-14 10:27:32 +01:00
|
|
|
LLVMBasicBlockRef block;
|
|
|
|
LLVMBuilderRef builder;
|
2009-08-23 12:28:34 +01:00
|
|
|
LLVMValueRef x0;
|
|
|
|
LLVMValueRef y0;
|
2009-09-06 11:20:14 +01:00
|
|
|
struct lp_build_sampler_soa *sampler;
|
2009-08-23 12:28:34 +01:00
|
|
|
struct lp_build_interp_soa_context interp;
|
2009-08-22 12:39:44 +01:00
|
|
|
LLVMValueRef fs_mask[LP_MAX_VECTOR_LENGTH];
|
2010-01-10 17:22:09 +00:00
|
|
|
LLVMValueRef fs_out_color[PIPE_MAX_COLOR_BUFS][NUM_CHANNELS][LP_MAX_VECTOR_LENGTH];
|
2009-08-22 12:39:44 +01:00
|
|
|
LLVMValueRef blend_mask;
|
|
|
|
LLVMValueRef blend_in_color[NUM_CHANNELS];
|
2010-01-15 17:25:59 +00:00
|
|
|
LLVMValueRef function;
|
2009-08-22 12:39:44 +01:00
|
|
|
unsigned num_fs;
|
2009-08-19 09:24:20 +01:00
|
|
|
unsigned i;
|
|
|
|
unsigned chan;
|
2010-01-10 17:22:09 +00:00
|
|
|
unsigned cbuf;
|
2009-08-14 10:27:32 +01:00
|
|
|
|
2009-08-19 20:42:50 +01:00
|
|
|
|
2009-08-22 22:26:55 +01:00
|
|
|
/* TODO: actually pick these based on the fs and color buffer
|
|
|
|
* characteristics. */
|
|
|
|
|
2009-09-14 11:05:06 +01:00
|
|
|
memset(&fs_type, 0, sizeof fs_type);
|
2009-08-22 12:39:44 +01:00
|
|
|
fs_type.floating = TRUE; /* floating point values */
|
|
|
|
fs_type.sign = TRUE; /* values are signed */
|
|
|
|
fs_type.norm = FALSE; /* values are not limited to [0,1] or [-1,1] */
|
|
|
|
fs_type.width = 32; /* 32-bit float */
|
2009-12-02 22:13:45 +00:00
|
|
|
fs_type.length = 4; /* 4 elements per vector */
|
|
|
|
num_fs = 4; /* number of quads per block */
|
2009-08-14 10:27:32 +01:00
|
|
|
|
2009-09-14 11:05:06 +01:00
|
|
|
memset(&blend_type, 0, sizeof blend_type);
|
2009-08-22 12:39:44 +01:00
|
|
|
blend_type.floating = FALSE; /* values are integers */
|
|
|
|
blend_type.sign = FALSE; /* values are unsigned */
|
|
|
|
blend_type.norm = TRUE; /* values are in [0,1] or [-1,1] */
|
|
|
|
blend_type.width = 8; /* 8-bit ubyte values */
|
|
|
|
blend_type.length = 16; /* 16 elements per vector */
|
|
|
|
|
2009-08-22 22:26:55 +01:00
|
|
|
/*
|
|
|
|
* Generate the function prototype. Any change here must be reflected in
|
2009-08-23 05:52:20 +01:00
|
|
|
* lp_jit.h's lp_jit_frag_func function pointer type, and vice-versa.
|
2009-08-22 22:26:55 +01:00
|
|
|
*/
|
|
|
|
|
2009-08-22 12:39:44 +01:00
|
|
|
fs_elem_type = lp_build_elem_type(fs_type);
|
|
|
|
fs_vec_type = lp_build_vec_type(fs_type);
|
|
|
|
fs_int_vec_type = lp_build_int_vec_type(fs_type);
|
|
|
|
|
|
|
|
blend_vec_type = lp_build_vec_type(blend_type);
|
|
|
|
blend_int_vec_type = lp_build_int_vec_type(blend_type);
|
2009-08-14 10:27:32 +01:00
|
|
|
|
2009-08-23 06:35:09 +01:00
|
|
|
arg_types[0] = screen->context_ptr_type; /* context */
|
|
|
|
arg_types[1] = LLVMInt32Type(); /* x */
|
|
|
|
arg_types[2] = LLVMInt32Type(); /* y */
|
|
|
|
arg_types[3] = LLVMPointerType(fs_elem_type, 0); /* a0 */
|
|
|
|
arg_types[4] = LLVMPointerType(fs_elem_type, 0); /* dadx */
|
|
|
|
arg_types[5] = LLVMPointerType(fs_elem_type, 0); /* dady */
|
2010-01-10 17:22:09 +00:00
|
|
|
arg_types[6] = LLVMPointerType(LLVMPointerType(blend_vec_type, 0), 0); /* color */
|
2009-12-16 23:02:59 +00:00
|
|
|
arg_types[7] = LLVMPointerType(fs_int_vec_type, 0); /* depth */
|
|
|
|
arg_types[8] = LLVMInt32Type(); /* c0 */
|
|
|
|
arg_types[9] = LLVMInt32Type(); /* c1 */
|
|
|
|
arg_types[10] = LLVMInt32Type(); /* c2 */
|
|
|
|
/* Note: the step arrays are built as int32[16] but we interpret
|
|
|
|
* them here as int32_vec4[4].
|
|
|
|
*/
|
|
|
|
arg_types[11] = LLVMPointerType(int32_vec4_type, 0);/* step0 */
|
|
|
|
arg_types[12] = LLVMPointerType(int32_vec4_type, 0);/* step1 */
|
|
|
|
arg_types[13] = LLVMPointerType(int32_vec4_type, 0);/* step2 */
|
2009-08-14 10:27:32 +01:00
|
|
|
|
|
|
|
func_type = LLVMFunctionType(LLVMVoidType(), arg_types, Elements(arg_types), 0);
|
|
|
|
|
2010-01-15 17:25:59 +00:00
|
|
|
function = LLVMAddFunction(screen->module, "shader", func_type);
|
|
|
|
LLVMSetFunctionCallConv(function, LLVMCCallConv);
|
|
|
|
|
2010-01-15 18:21:16 +00:00
|
|
|
variant->function[do_tri_test] = function;
|
2010-01-15 17:25:59 +00:00
|
|
|
|
2010-01-10 17:22:09 +00:00
|
|
|
|
|
|
|
/* XXX: need to propagate noalias down into color param now we are
|
|
|
|
* passing a pointer-to-pointer?
|
|
|
|
*/
|
2009-08-16 10:02:17 +01:00
|
|
|
for(i = 0; i < Elements(arg_types); ++i)
|
2009-08-19 17:58:04 +01:00
|
|
|
if(LLVMGetTypeKind(arg_types[i]) == LLVMPointerTypeKind)
|
2010-01-15 17:25:59 +00:00
|
|
|
LLVMAddAttribute(LLVMGetParam(function, i), LLVMNoAliasAttribute);
|
|
|
|
|
|
|
|
context_ptr = LLVMGetParam(function, 0);
|
|
|
|
x = LLVMGetParam(function, 1);
|
|
|
|
y = LLVMGetParam(function, 2);
|
|
|
|
a0_ptr = LLVMGetParam(function, 3);
|
|
|
|
dadx_ptr = LLVMGetParam(function, 4);
|
|
|
|
dady_ptr = LLVMGetParam(function, 5);
|
|
|
|
color_ptr_ptr = LLVMGetParam(function, 6);
|
|
|
|
depth_ptr = LLVMGetParam(function, 7);
|
|
|
|
c0 = LLVMGetParam(function, 8);
|
|
|
|
c1 = LLVMGetParam(function, 9);
|
|
|
|
c2 = LLVMGetParam(function, 10);
|
|
|
|
step0_ptr = LLVMGetParam(function, 11);
|
|
|
|
step1_ptr = LLVMGetParam(function, 12);
|
|
|
|
step2_ptr = LLVMGetParam(function, 13);
|
2009-08-19 17:58:04 +01:00
|
|
|
|
2009-08-23 06:35:09 +01:00
|
|
|
lp_build_name(context_ptr, "context");
|
2009-08-19 17:58:04 +01:00
|
|
|
lp_build_name(x, "x");
|
|
|
|
lp_build_name(y, "y");
|
2009-08-18 20:23:35 +01:00
|
|
|
lp_build_name(a0_ptr, "a0");
|
|
|
|
lp_build_name(dadx_ptr, "dadx");
|
|
|
|
lp_build_name(dady_ptr, "dady");
|
2010-01-10 17:22:09 +00:00
|
|
|
lp_build_name(color_ptr_ptr, "color_ptr");
|
2009-08-19 09:24:20 +01:00
|
|
|
lp_build_name(depth_ptr, "depth");
|
2009-12-16 23:02:59 +00:00
|
|
|
lp_build_name(c0, "c0");
|
|
|
|
lp_build_name(c1, "c1");
|
|
|
|
lp_build_name(c2, "c2");
|
|
|
|
lp_build_name(step0_ptr, "step0");
|
|
|
|
lp_build_name(step1_ptr, "step1");
|
|
|
|
lp_build_name(step2_ptr, "step2");
|
2009-08-14 10:27:32 +01:00
|
|
|
|
2009-08-22 22:26:55 +01:00
|
|
|
/*
|
|
|
|
* Function body
|
|
|
|
*/
|
|
|
|
|
2010-01-15 17:25:59 +00:00
|
|
|
block = LLVMAppendBasicBlock(function, "entry");
|
2009-08-14 10:27:32 +01:00
|
|
|
builder = LLVMCreateBuilder();
|
|
|
|
LLVMPositionBuilderAtEnd(builder, block);
|
|
|
|
|
2009-08-23 12:28:34 +01:00
|
|
|
generate_pos0(builder, x, y, &x0, &y0);
|
|
|
|
|
2010-01-11 12:06:51 +00:00
|
|
|
lp_build_interp_soa_init(&interp,
|
|
|
|
shader->base.tokens,
|
|
|
|
key->flatshade,
|
|
|
|
builder, fs_type,
|
2009-08-23 12:28:34 +01:00
|
|
|
a0_ptr, dadx_ptr, dady_ptr,
|
2009-12-02 22:13:45 +00:00
|
|
|
x0, y0);
|
2009-08-23 12:28:34 +01:00
|
|
|
|
2009-09-07 14:52:39 +01:00
|
|
|
/* code generated texture sampling */
|
|
|
|
sampler = lp_llvm_sampler_soa_create(key->sampler, context_ptr);
|
2009-08-25 08:05:31 +01:00
|
|
|
|
2009-12-02 22:13:45 +00:00
|
|
|
/* loop over quads in the block */
|
2009-08-22 12:39:44 +01:00
|
|
|
for(i = 0; i < num_fs; ++i) {
|
|
|
|
LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
|
2010-01-10 17:22:09 +00:00
|
|
|
LLVMValueRef out_color[PIPE_MAX_COLOR_BUFS][NUM_CHANNELS];
|
2009-08-22 12:39:44 +01:00
|
|
|
LLVMValueRef depth_ptr_i;
|
2010-01-10 17:22:09 +00:00
|
|
|
int cbuf;
|
2009-08-22 12:39:44 +01:00
|
|
|
|
2009-08-23 12:28:34 +01:00
|
|
|
if(i != 0)
|
2009-12-02 22:13:45 +00:00
|
|
|
lp_build_interp_soa_update(&interp, i);
|
2009-08-22 12:39:44 +01:00
|
|
|
|
|
|
|
depth_ptr_i = LLVMBuildGEP(builder, depth_ptr, &index, 1, "");
|
|
|
|
|
2009-08-23 07:38:41 +01:00
|
|
|
generate_fs(lp, shader, key,
|
2009-08-22 12:39:44 +01:00
|
|
|
builder,
|
|
|
|
fs_type,
|
2009-08-23 07:38:41 +01:00
|
|
|
context_ptr,
|
2009-08-22 12:39:44 +01:00
|
|
|
i,
|
2009-08-23 12:28:34 +01:00
|
|
|
&interp,
|
2009-09-06 11:20:14 +01:00
|
|
|
sampler,
|
2009-12-16 23:02:59 +00:00
|
|
|
&fs_mask[i], /* output */
|
2009-08-22 12:39:44 +01:00
|
|
|
out_color,
|
2009-12-16 23:02:59 +00:00
|
|
|
depth_ptr_i,
|
2010-01-15 18:21:16 +00:00
|
|
|
do_tri_test,
|
2009-12-16 23:02:59 +00:00
|
|
|
c0, c1, c2,
|
|
|
|
step0_ptr, step1_ptr, step2_ptr);
|
2009-08-22 12:39:44 +01:00
|
|
|
|
2010-01-10 17:22:09 +00:00
|
|
|
for(cbuf = 0; cbuf < key->nr_cbufs; cbuf++)
|
|
|
|
for(chan = 0; chan < NUM_CHANNELS; ++chan)
|
|
|
|
fs_out_color[cbuf][chan][i] = out_color[cbuf][chan];
|
2009-08-22 12:39:44 +01:00
|
|
|
}
|
2009-08-19 09:24:20 +01:00
|
|
|
|
2009-09-06 11:20:14 +01:00
|
|
|
sampler->destroy(sampler);
|
|
|
|
|
2010-01-10 17:22:09 +00:00
|
|
|
/* Loop over color outputs / color buffers to do blending.
|
2009-08-22 22:26:55 +01:00
|
|
|
*/
|
2010-01-10 17:22:09 +00:00
|
|
|
for(cbuf = 0; cbuf < key->nr_cbufs; cbuf++) {
|
|
|
|
LLVMValueRef color_ptr;
|
|
|
|
LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), cbuf, 0);
|
2009-08-22 22:26:55 +01:00
|
|
|
|
2010-01-10 17:22:09 +00:00
|
|
|
/*
|
|
|
|
* Convert the fs's output color and mask to fit to the blending type.
|
|
|
|
*/
|
|
|
|
for(chan = 0; chan < NUM_CHANNELS; ++chan) {
|
|
|
|
lp_build_conv(builder, fs_type, blend_type,
|
|
|
|
fs_out_color[cbuf][chan], num_fs,
|
|
|
|
&blend_in_color[chan], 1);
|
|
|
|
lp_build_name(blend_in_color[chan], "color%d.%c", cbuf, "rgba"[chan]);
|
|
|
|
}
|
2009-08-23 07:38:41 +01:00
|
|
|
|
2010-01-10 17:22:09 +00:00
|
|
|
lp_build_conv_mask(builder, fs_type, blend_type,
|
|
|
|
fs_mask, num_fs,
|
|
|
|
&blend_mask, 1);
|
|
|
|
|
|
|
|
color_ptr = LLVMBuildLoad(builder,
|
|
|
|
LLVMBuildGEP(builder, color_ptr_ptr, &index, 1, ""),
|
|
|
|
"");
|
|
|
|
lp_build_name(color_ptr, "color_ptr%d", cbuf);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Blending.
|
|
|
|
*/
|
|
|
|
generate_blend(&key->blend,
|
|
|
|
builder,
|
|
|
|
blend_type,
|
|
|
|
context_ptr,
|
|
|
|
blend_mask,
|
|
|
|
blend_in_color,
|
|
|
|
color_ptr);
|
2009-08-14 10:27:32 +01:00
|
|
|
}
|
|
|
|
|
2009-08-22 22:26:55 +01:00
|
|
|
LLVMBuildRetVoid(builder);
|
2009-08-14 10:27:32 +01:00
|
|
|
|
|
|
|
LLVMDisposeBuilder(builder);
|
2009-07-26 23:44:38 +01:00
|
|
|
|
2009-08-22 22:26:55 +01:00
|
|
|
|
2010-01-08 21:49:34 +00:00
|
|
|
/* Verify the LLVM IR. If invalid, dump and abort */
|
2009-11-23 11:21:11 +00:00
|
|
|
#ifdef DEBUG
|
2010-01-15 17:25:59 +00:00
|
|
|
if(LLVMVerifyFunction(function, LLVMPrintMessageAction)) {
|
2010-01-08 21:49:34 +00:00
|
|
|
if (1)
|
2010-01-15 17:25:59 +00:00
|
|
|
LLVMDumpValue(function);
|
2010-01-08 21:49:34 +00:00
|
|
|
abort();
|
2009-09-29 17:22:39 +01:00
|
|
|
}
|
2009-11-23 11:21:11 +00:00
|
|
|
#endif
|
2009-09-29 17:22:39 +01:00
|
|
|
|
2010-01-08 21:49:34 +00:00
|
|
|
/* Apply optimizations to LLVM IR */
|
|
|
|
if (1)
|
2010-01-15 17:25:59 +00:00
|
|
|
LLVMRunFunctionPassManager(screen->pass, function);
|
2009-08-14 10:27:32 +01:00
|
|
|
|
2009-10-09 14:59:35 +01:00
|
|
|
if (LP_DEBUG & DEBUG_JIT) {
|
2010-01-08 21:49:34 +00:00
|
|
|
/* Print the LLVM IR to stderr */
|
2010-01-15 17:25:59 +00:00
|
|
|
LLVMDumpValue(function);
|
2009-10-09 14:59:35 +01:00
|
|
|
debug_printf("\n");
|
|
|
|
}
|
2009-08-14 10:27:32 +01:00
|
|
|
|
2010-01-08 21:49:34 +00:00
|
|
|
/*
|
|
|
|
* Translate the LLVM IR into machine code.
|
|
|
|
*/
|
2010-01-15 18:21:16 +00:00
|
|
|
variant->jit_function[do_tri_test] = (lp_jit_frag_func)LLVMGetPointerToGlobal(screen->engine, function);
|
2009-08-14 10:27:32 +01:00
|
|
|
|
2009-10-09 14:59:35 +01:00
|
|
|
if (LP_DEBUG & DEBUG_ASM)
|
2010-01-15 18:21:16 +00:00
|
|
|
lp_disassemble(variant->jit_function[do_tri_test]);
|
2010-01-11 20:16:00 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static struct lp_fragment_shader_variant *
|
|
|
|
generate_variant(struct llvmpipe_context *lp,
|
|
|
|
struct lp_fragment_shader *shader,
|
|
|
|
const struct lp_fragment_shader_variant_key *key)
|
|
|
|
{
|
|
|
|
struct lp_fragment_shader_variant *variant;
|
|
|
|
|
|
|
|
if (LP_DEBUG & DEBUG_JIT) {
|
|
|
|
unsigned i;
|
|
|
|
|
|
|
|
tgsi_dump(shader->base.tokens, 0);
|
|
|
|
if(key->depth.enabled) {
|
|
|
|
debug_printf("depth.format = %s\n", pf_name(key->zsbuf_format));
|
|
|
|
debug_printf("depth.func = %s\n", debug_dump_func(key->depth.func, TRUE));
|
|
|
|
debug_printf("depth.writemask = %u\n", key->depth.writemask);
|
|
|
|
}
|
|
|
|
if(key->alpha.enabled) {
|
|
|
|
debug_printf("alpha.func = %s\n", debug_dump_func(key->alpha.func, TRUE));
|
|
|
|
debug_printf("alpha.ref_value = %f\n", key->alpha.ref_value);
|
|
|
|
}
|
|
|
|
if(key->blend.logicop_enable) {
|
|
|
|
debug_printf("blend.logicop_func = %u\n", key->blend.logicop_func);
|
|
|
|
}
|
|
|
|
else if(key->blend.blend_enable) {
|
|
|
|
debug_printf("blend.rgb_func = %s\n", debug_dump_blend_func (key->blend.rgb_func, TRUE));
|
|
|
|
debug_printf("rgb_src_factor = %s\n", debug_dump_blend_factor(key->blend.rgb_src_factor, TRUE));
|
|
|
|
debug_printf("rgb_dst_factor = %s\n", debug_dump_blend_factor(key->blend.rgb_dst_factor, TRUE));
|
|
|
|
debug_printf("alpha_func = %s\n", debug_dump_blend_func (key->blend.alpha_func, TRUE));
|
|
|
|
debug_printf("alpha_src_factor = %s\n", debug_dump_blend_factor(key->blend.alpha_src_factor, TRUE));
|
|
|
|
debug_printf("alpha_dst_factor = %s\n", debug_dump_blend_factor(key->blend.alpha_dst_factor, TRUE));
|
|
|
|
}
|
|
|
|
debug_printf("blend.colormask = 0x%x\n", key->blend.colormask);
|
|
|
|
for(i = 0; i < PIPE_MAX_SAMPLERS; ++i) {
|
|
|
|
if(key->sampler[i].format) {
|
|
|
|
debug_printf("sampler[%u] = \n", i);
|
|
|
|
debug_printf(" .format = %s\n",
|
|
|
|
pf_name(key->sampler[i].format));
|
|
|
|
debug_printf(" .target = %s\n",
|
|
|
|
debug_dump_tex_target(key->sampler[i].target, TRUE));
|
|
|
|
debug_printf(" .pot = %u %u %u\n",
|
|
|
|
key->sampler[i].pot_width,
|
|
|
|
key->sampler[i].pot_height,
|
|
|
|
key->sampler[i].pot_depth);
|
|
|
|
debug_printf(" .wrap = %s %s %s\n",
|
|
|
|
debug_dump_tex_wrap(key->sampler[i].wrap_s, TRUE),
|
|
|
|
debug_dump_tex_wrap(key->sampler[i].wrap_t, TRUE),
|
|
|
|
debug_dump_tex_wrap(key->sampler[i].wrap_r, TRUE));
|
|
|
|
debug_printf(" .min_img_filter = %s\n",
|
|
|
|
debug_dump_tex_filter(key->sampler[i].min_img_filter, TRUE));
|
|
|
|
debug_printf(" .min_mip_filter = %s\n",
|
|
|
|
debug_dump_tex_mipfilter(key->sampler[i].min_mip_filter, TRUE));
|
|
|
|
debug_printf(" .mag_img_filter = %s\n",
|
|
|
|
debug_dump_tex_filter(key->sampler[i].mag_img_filter, TRUE));
|
|
|
|
if(key->sampler[i].compare_mode != PIPE_TEX_COMPARE_NONE)
|
|
|
|
debug_printf(" .compare_func = %s\n", debug_dump_func(key->sampler[i].compare_func, TRUE));
|
|
|
|
debug_printf(" .normalized_coords = %u\n", key->sampler[i].normalized_coords);
|
|
|
|
debug_printf(" .prefilter = %u\n", key->sampler[i].prefilter);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
variant = CALLOC_STRUCT(lp_fragment_shader_variant);
|
|
|
|
if(!variant)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
variant->shader = shader;
|
|
|
|
memcpy(&variant->key, key, sizeof *key);
|
|
|
|
|
2010-01-15 18:21:16 +00:00
|
|
|
generate_fragment(lp, shader, variant, 0);
|
|
|
|
generate_fragment(lp, shader, variant, 1);
|
2009-08-19 20:42:50 +01:00
|
|
|
|
2010-01-15 17:25:59 +00:00
|
|
|
/* insert new variant into linked list */
|
|
|
|
variant->next = shader->variants;
|
|
|
|
shader->variants = variant;
|
|
|
|
|
2009-08-19 20:42:50 +01:00
|
|
|
return variant;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void *
|
|
|
|
llvmpipe_create_fs_state(struct pipe_context *pipe,
|
|
|
|
const struct pipe_shader_state *templ)
|
|
|
|
{
|
|
|
|
struct lp_fragment_shader *shader;
|
|
|
|
|
|
|
|
shader = CALLOC_STRUCT(lp_fragment_shader);
|
|
|
|
if (!shader)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
/* get/save the summary info for this shader */
|
|
|
|
tgsi_scan_shader(templ->tokens, &shader->info);
|
|
|
|
|
|
|
|
/* we need to keep a local copy of the tokens */
|
|
|
|
shader->base.tokens = tgsi_dup_tokens(templ->tokens);
|
|
|
|
|
2009-08-14 10:27:32 +01:00
|
|
|
return shader;
|
2009-07-26 23:44:38 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
llvmpipe_bind_fs_state(struct pipe_context *pipe, void *fs)
|
|
|
|
{
|
|
|
|
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
|
|
|
|
|
2009-12-26 15:21:16 +00:00
|
|
|
if (llvmpipe->fs == fs)
|
|
|
|
return;
|
|
|
|
|
|
|
|
draw_flush(llvmpipe->draw);
|
|
|
|
|
|
|
|
llvmpipe->fs = fs;
|
2009-07-26 23:44:38 +01:00
|
|
|
|
2009-07-27 11:36:24 +01:00
|
|
|
llvmpipe->dirty |= LP_NEW_FS;
|
2009-07-26 23:44:38 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
llvmpipe_delete_fs_state(struct pipe_context *pipe, void *fs)
|
|
|
|
{
|
2009-08-21 07:48:04 +01:00
|
|
|
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
|
|
|
|
struct llvmpipe_screen *screen = llvmpipe_screen(pipe->screen);
|
2009-08-14 10:27:32 +01:00
|
|
|
struct lp_fragment_shader *shader = fs;
|
2009-08-19 20:42:50 +01:00
|
|
|
struct lp_fragment_shader_variant *variant;
|
2009-07-26 23:44:38 +01:00
|
|
|
|
2009-08-21 07:48:04 +01:00
|
|
|
assert(fs != llvmpipe->fs);
|
2009-12-28 08:44:30 +00:00
|
|
|
(void) llvmpipe;
|
2009-08-19 20:42:50 +01:00
|
|
|
|
|
|
|
variant = shader->variants;
|
|
|
|
while(variant) {
|
|
|
|
struct lp_fragment_shader_variant *next = variant->next;
|
2010-01-15 18:21:16 +00:00
|
|
|
unsigned i;
|
2009-08-19 20:42:50 +01:00
|
|
|
|
2010-01-15 18:21:16 +00:00
|
|
|
for (i = 0; i < Elements(variant->function); i++) {
|
|
|
|
if (variant->function[i]) {
|
|
|
|
if (variant->jit_function[i])
|
|
|
|
LLVMFreeMachineCodeForFunction(screen->engine,
|
|
|
|
variant->function[i]);
|
|
|
|
LLVMDeleteFunction(variant->function[i]);
|
|
|
|
}
|
2009-08-19 20:42:50 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
FREE(variant);
|
|
|
|
|
|
|
|
variant = next;
|
2009-08-14 10:27:32 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
FREE((void *) shader->base.tokens);
|
|
|
|
FREE(shader);
|
2009-07-26 23:44:38 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
llvmpipe_set_constant_buffer(struct pipe_context *pipe,
|
|
|
|
uint shader, uint index,
|
2010-01-11 15:30:48 +00:00
|
|
|
struct pipe_buffer *constants)
|
2009-07-26 23:44:38 +01:00
|
|
|
{
|
|
|
|
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
|
2009-12-23 23:55:49 +00:00
|
|
|
unsigned size = constants ? constants->size : 0;
|
|
|
|
const void *data = constants ? llvmpipe_buffer(constants)->data : NULL;
|
2009-07-26 23:44:38 +01:00
|
|
|
|
|
|
|
assert(shader < PIPE_SHADER_TYPES);
|
|
|
|
assert(index == 0);
|
|
|
|
|
2010-01-16 23:21:06 +00:00
|
|
|
if(llvmpipe->constants[shader] == constants)
|
2009-10-09 13:41:33 +01:00
|
|
|
return;
|
|
|
|
|
2009-12-26 15:21:16 +00:00
|
|
|
draw_flush(llvmpipe->draw);
|
2009-10-09 11:29:33 +01:00
|
|
|
|
2009-07-26 23:44:38 +01:00
|
|
|
/* note: reference counting */
|
2009-12-23 23:55:49 +00:00
|
|
|
pipe_buffer_reference(&llvmpipe->constants[shader], constants);
|
2009-10-09 11:29:33 +01:00
|
|
|
|
|
|
|
if(shader == PIPE_SHADER_VERTEX) {
|
2009-12-14 22:11:46 +00:00
|
|
|
draw_set_mapped_constant_buffer(llvmpipe->draw, PIPE_SHADER_VERTEX,
|
|
|
|
data, size);
|
2009-10-09 11:29:33 +01:00
|
|
|
}
|
2009-07-26 23:44:38 +01:00
|
|
|
|
2009-07-27 11:36:24 +01:00
|
|
|
llvmpipe->dirty |= LP_NEW_CONSTANTS;
|
2009-07-26 23:44:38 +01:00
|
|
|
}
|
2009-08-19 20:42:50 +01:00
|
|
|
|
|
|
|
|
2009-08-23 07:38:41 +01:00
|
|
|
/**
|
|
|
|
* We need to generate several variants of the fragment pipeline to match
|
|
|
|
* all the combinations of the contributing state atoms.
|
|
|
|
*
|
|
|
|
* TODO: there is actually no reason to tie this to context state -- the
|
|
|
|
* generated code could be cached globally in the screen.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
make_variant_key(struct llvmpipe_context *lp,
|
2009-09-07 14:52:39 +01:00
|
|
|
struct lp_fragment_shader *shader,
|
2009-08-23 07:38:41 +01:00
|
|
|
struct lp_fragment_shader_variant_key *key)
|
|
|
|
{
|
2009-09-07 14:52:39 +01:00
|
|
|
unsigned i;
|
|
|
|
|
2009-08-23 07:38:41 +01:00
|
|
|
memset(key, 0, sizeof *key);
|
|
|
|
|
2009-09-09 21:16:06 +01:00
|
|
|
if(lp->framebuffer.zsbuf &&
|
|
|
|
lp->depth_stencil->depth.enabled) {
|
|
|
|
key->zsbuf_format = lp->framebuffer.zsbuf->format;
|
|
|
|
memcpy(&key->depth, &lp->depth_stencil->depth, sizeof key->depth);
|
|
|
|
}
|
2009-08-23 07:38:41 +01:00
|
|
|
|
|
|
|
key->alpha.enabled = lp->depth_stencil->alpha.enabled;
|
|
|
|
if(key->alpha.enabled)
|
|
|
|
key->alpha.func = lp->depth_stencil->alpha.func;
|
|
|
|
/* alpha.ref_value is passed in jit_context */
|
|
|
|
|
2010-01-11 12:06:51 +00:00
|
|
|
key->flatshade = lp->rasterizer->flatshade;
|
2010-01-15 02:15:00 +00:00
|
|
|
key->scissor = lp->rasterizer->scissor;
|
2010-01-11 12:06:51 +00:00
|
|
|
|
2010-01-10 17:22:09 +00:00
|
|
|
if (lp->framebuffer.nr_cbufs) {
|
|
|
|
memcpy(&key->blend, lp->blend, sizeof key->blend);
|
|
|
|
}
|
|
|
|
|
|
|
|
key->nr_cbufs = lp->framebuffer.nr_cbufs;
|
|
|
|
for (i = 0; i < lp->framebuffer.nr_cbufs; i++) {
|
2009-09-10 12:37:44 +01:00
|
|
|
const struct util_format_description *format_desc;
|
|
|
|
unsigned chan;
|
|
|
|
|
2010-01-10 17:22:09 +00:00
|
|
|
format_desc = util_format_description(lp->framebuffer.cbufs[i]->format);
|
2009-09-10 12:37:44 +01:00
|
|
|
assert(format_desc->layout == UTIL_FORMAT_COLORSPACE_RGB ||
|
|
|
|
format_desc->layout == UTIL_FORMAT_COLORSPACE_SRGB);
|
|
|
|
|
2010-01-10 17:22:09 +00:00
|
|
|
/* mask out color channels not present in the color buffer.
|
|
|
|
* Should be simple to incorporate per-cbuf writemasks:
|
|
|
|
*/
|
2009-09-10 12:37:44 +01:00
|
|
|
for(chan = 0; chan < 4; ++chan) {
|
|
|
|
enum util_format_swizzle swizzle = format_desc->swizzle[chan];
|
2010-01-10 17:22:09 +00:00
|
|
|
|
|
|
|
if(swizzle <= UTIL_FORMAT_SWIZZLE_W)
|
|
|
|
key->cbuf_blend[i].colormask |= (1 << chan);
|
2009-09-10 12:37:44 +01:00
|
|
|
}
|
|
|
|
}
|
2009-09-07 14:52:39 +01:00
|
|
|
|
|
|
|
for(i = 0; i < PIPE_MAX_SAMPLERS; ++i)
|
|
|
|
if(shader->info.file_mask[TGSI_FILE_SAMPLER] & (1 << i))
|
|
|
|
lp_sampler_static_state(&key->sampler[i], lp->texture[i], lp->sampler[i]);
|
2009-08-23 07:38:41 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-01-13 17:58:36 +00:00
|
|
|
/**
|
|
|
|
* Update fragment state. This is called just prior to drawing
|
|
|
|
* something when some fragment-related state has changed.
|
|
|
|
*/
|
2009-08-22 22:26:55 +01:00
|
|
|
void
|
|
|
|
llvmpipe_update_fs(struct llvmpipe_context *lp)
|
2009-08-19 20:42:50 +01:00
|
|
|
{
|
|
|
|
struct lp_fragment_shader *shader = lp->fs;
|
2009-08-21 07:48:04 +01:00
|
|
|
struct lp_fragment_shader_variant_key key;
|
2009-08-19 20:42:50 +01:00
|
|
|
struct lp_fragment_shader_variant *variant;
|
2010-01-13 21:51:47 +00:00
|
|
|
boolean opaque;
|
2009-08-19 20:42:50 +01:00
|
|
|
|
2009-09-07 14:52:39 +01:00
|
|
|
make_variant_key(lp, shader, &key);
|
2009-08-21 07:48:04 +01:00
|
|
|
|
2009-08-19 20:42:50 +01:00
|
|
|
variant = shader->variants;
|
|
|
|
while(variant) {
|
2009-08-21 07:48:04 +01:00
|
|
|
if(memcmp(&variant->key, &key, sizeof key) == 0)
|
2009-08-19 20:42:50 +01:00
|
|
|
break;
|
|
|
|
|
|
|
|
variant = variant->next;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(!variant)
|
2010-01-11 20:16:00 +00:00
|
|
|
variant = generate_variant(lp, shader, &key);
|
2009-08-19 20:42:50 +01:00
|
|
|
|
|
|
|
shader->current = variant;
|
2009-10-09 15:52:18 +01:00
|
|
|
|
2010-01-13 21:51:47 +00:00
|
|
|
/* TODO: put this in the variant */
|
2010-01-13 22:07:24 +00:00
|
|
|
/* TODO: most of these can be relaxed, in particular the colormask */
|
2010-01-13 21:51:47 +00:00
|
|
|
opaque = !key.blend.logicop_enable &&
|
|
|
|
!key.blend.blend_enable &&
|
2010-01-13 22:07:24 +00:00
|
|
|
key.blend.colormask == 0xf &&
|
2010-01-13 21:51:47 +00:00
|
|
|
!key.alpha.enabled &&
|
|
|
|
!key.depth.enabled &&
|
2010-01-15 02:15:00 +00:00
|
|
|
!key.scissor &&
|
2010-01-13 21:51:47 +00:00
|
|
|
!shader->info.uses_kill
|
|
|
|
? TRUE : FALSE;
|
|
|
|
|
2010-01-15 18:21:16 +00:00
|
|
|
lp_setup_set_fs_functions(lp->setup,
|
|
|
|
shader->current->jit_function[0],
|
|
|
|
shader->current->jit_function[1],
|
|
|
|
opaque);
|
2009-08-19 20:42:50 +01:00
|
|
|
}
|