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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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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#include "lp_state.h"
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#include "lp_quad.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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2009-08-14 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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2009-08-22 12:39:44 +01:00
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generate_depth(struct llvmpipe_context *lp,
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LLVMBuilderRef builder,
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const struct pipe_depth_state *state,
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union lp_type src_type,
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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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union lp_type dst_type;
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if(!lp->framebuffer.zsbuf)
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return;
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format_desc = util_format_description(lp->framebuffer.zsbuf->format);
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assert(format_desc);
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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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#if 1
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src = lp_build_clamped_float_to_unsigned_norm(builder,
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src_type,
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dst_type.width,
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src);
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#else
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lp_build_conv(builder, src_type, dst_type, &src, 1, &src, 1);
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#endif
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lp_build_depth_test(builder,
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state,
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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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2009-08-22 12:39:44 +01:00
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/**
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2009-08-22 22:26:55 +01:00
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* Generate the fragment shader, depth/stencil test, and alpha tests.
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2009-08-22 12:39:44 +01:00
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*/
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static void
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generate_fs(struct llvmpipe_context *lp,
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struct lp_fragment_shader *shader,
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const struct lp_fragment_shader_variant_key *key,
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LLVMBuilderRef builder,
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union lp_type type,
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2009-08-23 07:38:41 +01:00
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LLVMValueRef context_ptr,
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2009-08-22 12:39:44 +01:00
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unsigned i,
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2009-08-23 12:28:34 +01:00
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const struct lp_build_interp_soa_context *interp,
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2009-09-06 11:20:14 +01:00
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struct lp_build_sampler_soa *sampler,
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2009-08-22 12:39:44 +01:00
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LLVMValueRef *pmask,
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LLVMValueRef *color,
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2009-08-23 07:38:41 +01:00
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LLVMValueRef depth_ptr)
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2009-08-14 10:27:32 +01:00
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{
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const struct tgsi_token *tokens = shader->base.tokens;
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LLVMTypeRef elem_type;
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LLVMTypeRef vec_type;
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2009-08-16 21:01:57 +01:00
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LLVMTypeRef int_vec_type;
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2009-08-23 07:38:41 +01:00
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LLVMValueRef consts_ptr;
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2009-08-22 12:39:44 +01:00
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LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][NUM_CHANNELS];
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2009-08-23 12:28:34 +01:00
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LLVMValueRef z = interp->pos[2];
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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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boolean early_depth_test;
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unsigned attrib;
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unsigned chan;
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elem_type = lp_build_elem_type(type);
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vec_type = lp_build_vec_type(type);
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int_vec_type = lp_build_int_vec_type(type);
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2009-08-23 07:38:41 +01:00
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consts_ptr = lp_jit_context_constants(builder, context_ptr);
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2009-08-22 12:39:44 +01:00
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lp_build_mask_begin(&mask, builder, type, *pmask);
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early_depth_test =
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lp->depth_stencil->depth.enabled &&
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lp->framebuffer.zsbuf &&
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!lp->depth_stencil->alpha.enabled &&
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!lp->fs->info.uses_kill &&
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!lp->fs->info.writes_z;
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if(early_depth_test)
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generate_depth(lp, builder, &key->depth,
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2009-08-23 12:28:34 +01:00
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type, &mask,
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z, depth_ptr);
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2009-08-22 12:39:44 +01:00
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memset(outputs, 0, sizeof outputs);
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lp_build_tgsi_soa(builder, tokens, type, &mask,
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2009-08-23 12:28:34 +01:00
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consts_ptr, interp->pos, interp->inputs,
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2009-09-06 11:20:14 +01:00
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outputs, sampler);
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2009-08-22 12:39:44 +01:00
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for (attrib = 0; attrib < shader->info.num_outputs; ++attrib) {
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for(chan = 0; chan < NUM_CHANNELS; ++chan) {
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if(outputs[attrib][chan]) {
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lp_build_name(outputs[attrib][chan], "output%u.%u.%c", i, attrib, "xyzw"[chan]);
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switch (shader->info.output_semantic_name[attrib]) {
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case TGSI_SEMANTIC_COLOR:
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{
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unsigned cbuf = shader->info.output_semantic_index[attrib];
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lp_build_name(outputs[attrib][chan], "color%u.%u.%c", i, attrib, "rgba"[chan]);
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/* Alpha test */
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/* XXX: should the alpha reference value be passed separately? */
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2009-08-23 07:38:41 +01:00
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if(cbuf == 0 && chan == 3) {
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LLVMValueRef alpha = outputs[attrib][chan];
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LLVMValueRef alpha_ref_value;
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alpha_ref_value = lp_jit_context_alpha_ref_value(builder, context_ptr);
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alpha_ref_value = lp_build_broadcast(builder, vec_type, alpha_ref_value);
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2009-08-22 12:39:44 +01:00
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lp_build_alpha_test(builder, &key->alpha, type,
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2009-08-23 07:38:41 +01:00
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&mask, alpha, alpha_ref_value);
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}
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2009-08-22 12:39:44 +01:00
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if(cbuf == 0)
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color[chan] = outputs[attrib][chan];
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break;
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}
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case TGSI_SEMANTIC_POSITION:
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if(chan == 2)
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2009-08-23 12:28:34 +01:00
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z = outputs[attrib][chan];
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2009-08-22 12:39:44 +01:00
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break;
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}
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}
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}
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}
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if(!early_depth_test)
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generate_depth(lp, builder, &key->depth,
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2009-08-23 12:28:34 +01:00
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type, &mask,
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z, depth_ptr);
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2009-08-22 12:39:44 +01:00
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lp_build_mask_end(&mask);
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*pmask = mask.value;
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}
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/**
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2009-08-22 22:26:55 +01:00
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* Generate color blending and color output.
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2009-08-22 12:39:44 +01:00
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*/
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static void
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generate_blend(const struct pipe_blend_state *blend,
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LLVMBuilderRef builder,
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union lp_type type,
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2009-08-23 07:38:41 +01:00
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LLVMValueRef context_ptr,
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2009-08-22 12:39:44 +01:00
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LLVMValueRef mask,
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LLVMValueRef *src,
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LLVMValueRef dst_ptr)
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{
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struct lp_build_context bld;
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LLVMTypeRef vec_type;
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LLVMTypeRef int_vec_type;
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2009-08-23 07:38:41 +01:00
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LLVMValueRef const_ptr;
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2009-08-22 12:39:44 +01:00
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LLVMValueRef con[4];
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LLVMValueRef dst[4];
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LLVMValueRef res[4];
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unsigned chan;
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vec_type = lp_build_vec_type(type);
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int_vec_type = lp_build_int_vec_type(type);
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lp_build_context_init(&bld, builder, type);
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2009-08-23 07:38:41 +01:00
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|
|
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) {
|
|
|
|
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 22:26:55 +01:00
|
|
|
/**
|
|
|
|
* Generate the runtime callable function for the whole fragment pipeline.
|
|
|
|
*/
|
2009-08-22 12:39:44 +01:00
|
|
|
static struct lp_fragment_shader_variant *
|
|
|
|
generate_fragment(struct llvmpipe_context *lp,
|
|
|
|
struct lp_fragment_shader *shader,
|
|
|
|
const struct lp_fragment_shader_variant_key *key)
|
|
|
|
{
|
|
|
|
struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
|
|
|
|
struct lp_fragment_shader_variant *variant;
|
|
|
|
union lp_type fs_type;
|
|
|
|
union lp_type blend_type;
|
|
|
|
LLVMTypeRef fs_elem_type;
|
|
|
|
LLVMTypeRef fs_vec_type;
|
|
|
|
LLVMTypeRef fs_int_vec_type;
|
|
|
|
LLVMTypeRef blend_vec_type;
|
|
|
|
LLVMTypeRef blend_int_vec_type;
|
2009-08-23 06:35:09 +01:00
|
|
|
LLVMTypeRef arg_types[9];
|
2009-08-14 10:27:32 +01:00
|
|
|
LLVMTypeRef func_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;
|
2009-08-16 21:01:57 +01:00
|
|
|
LLVMValueRef mask_ptr;
|
2009-08-19 09:24:20 +01:00
|
|
|
LLVMValueRef color_ptr;
|
|
|
|
LLVMValueRef depth_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];
|
|
|
|
LLVMValueRef fs_out_color[NUM_CHANNELS][LP_MAX_VECTOR_LENGTH];
|
|
|
|
LLVMValueRef blend_mask;
|
|
|
|
LLVMValueRef blend_in_color[NUM_CHANNELS];
|
|
|
|
unsigned num_fs;
|
2009-08-19 09:24:20 +01:00
|
|
|
unsigned i;
|
|
|
|
unsigned chan;
|
2009-08-14 10:27:32 +01:00
|
|
|
|
2009-08-19 20:42:50 +01:00
|
|
|
#ifdef DEBUG
|
|
|
|
tgsi_dump(shader->base.tokens, 0);
|
2009-08-22 12:39:44 +01:00
|
|
|
if(key->depth.enabled) {
|
|
|
|
debug_printf("depth.func = %s\n", debug_dump_func(key->depth.func, TRUE));
|
|
|
|
debug_printf("depth.writemask = %u\n", key->depth.writemask);
|
|
|
|
debug_printf("depth.occlusion_count = %u\n", key->depth.occlusion_count);
|
|
|
|
}
|
|
|
|
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);
|
2009-08-19 20:42:50 +01:00
|
|
|
#endif
|
|
|
|
|
|
|
|
variant = CALLOC_STRUCT(lp_fragment_shader_variant);
|
|
|
|
if(!variant)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
variant->shader = shader;
|
2009-08-21 07:48:04 +01:00
|
|
|
memcpy(&variant->key, key, sizeof *key);
|
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. */
|
|
|
|
|
2009-08-22 12:39:44 +01:00
|
|
|
fs_type.value = 0;
|
|
|
|
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 */
|
|
|
|
fs_type.length = 4; /* 4 element per vector */
|
|
|
|
num_fs = 4;
|
2009-08-14 10:27:32 +01:00
|
|
|
|
2009-08-22 12:39:44 +01:00
|
|
|
blend_type.value = 0;
|
|
|
|
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 */
|
2009-08-22 12:39:44 +01:00
|
|
|
arg_types[6] = LLVMPointerType(fs_int_vec_type, 0); /* mask */
|
|
|
|
arg_types[7] = LLVMPointerType(blend_vec_type, 0); /* color */
|
|
|
|
arg_types[8] = LLVMPointerType(fs_int_vec_type, 0); /* depth */
|
2009-08-14 10:27:32 +01:00
|
|
|
|
|
|
|
func_type = LLVMFunctionType(LLVMVoidType(), arg_types, Elements(arg_types), 0);
|
|
|
|
|
2009-08-19 20:42:50 +01:00
|
|
|
variant->function = LLVMAddFunction(screen->module, "shader", func_type);
|
|
|
|
LLVMSetFunctionCallConv(variant->function, LLVMCCallConv);
|
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)
|
2009-08-19 20:42:50 +01:00
|
|
|
LLVMAddAttribute(LLVMGetParam(variant->function, i), LLVMNoAliasAttribute);
|
|
|
|
|
2009-08-23 06:35:09 +01:00
|
|
|
context_ptr = LLVMGetParam(variant->function, 0);
|
|
|
|
x = LLVMGetParam(variant->function, 1);
|
|
|
|
y = LLVMGetParam(variant->function, 2);
|
|
|
|
a0_ptr = LLVMGetParam(variant->function, 3);
|
|
|
|
dadx_ptr = LLVMGetParam(variant->function, 4);
|
|
|
|
dady_ptr = LLVMGetParam(variant->function, 5);
|
2009-08-19 20:42:50 +01:00
|
|
|
mask_ptr = LLVMGetParam(variant->function, 6);
|
|
|
|
color_ptr = LLVMGetParam(variant->function, 7);
|
|
|
|
depth_ptr = LLVMGetParam(variant->function, 8);
|
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");
|
|
|
|
lp_build_name(mask_ptr, "mask");
|
2009-08-19 09:24:20 +01:00
|
|
|
lp_build_name(color_ptr, "color");
|
|
|
|
lp_build_name(depth_ptr, "depth");
|
2009-08-14 10:27:32 +01:00
|
|
|
|
2009-08-22 22:26:55 +01:00
|
|
|
/*
|
|
|
|
* Function body
|
|
|
|
*/
|
|
|
|
|
2009-08-19 20:42:50 +01:00
|
|
|
block = LLVMAppendBasicBlock(variant->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);
|
|
|
|
|
|
|
|
lp_build_interp_soa_init(&interp, shader->base.tokens, builder, fs_type,
|
|
|
|
a0_ptr, dadx_ptr, dady_ptr,
|
|
|
|
x0, y0, 2, 0);
|
|
|
|
|
2009-09-06 11:20:14 +01:00
|
|
|
sampler = lp_c_sampler_soa_create(context_ptr);
|
2009-08-25 08:05:31 +01:00
|
|
|
|
2009-08-22 12:39:44 +01:00
|
|
|
for(i = 0; i < num_fs; ++i) {
|
|
|
|
LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
|
|
|
|
LLVMValueRef out_color[NUM_CHANNELS];
|
|
|
|
LLVMValueRef depth_ptr_i;
|
|
|
|
|
2009-08-23 12:28:34 +01:00
|
|
|
if(i != 0)
|
|
|
|
lp_build_interp_soa_update(&interp);
|
2009-08-22 12:39:44 +01:00
|
|
|
|
|
|
|
fs_mask[i] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, mask_ptr, &index, 1, ""), "");
|
|
|
|
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,
|
2009-08-22 12:39:44 +01:00
|
|
|
&fs_mask[i],
|
|
|
|
out_color,
|
2009-08-23 07:38:41 +01:00
|
|
|
depth_ptr_i);
|
2009-08-22 12:39:44 +01:00
|
|
|
|
|
|
|
for(chan = 0; chan < NUM_CHANNELS; ++chan)
|
|
|
|
fs_out_color[chan][i] = out_color[chan];
|
|
|
|
}
|
2009-08-19 09:24:20 +01:00
|
|
|
|
2009-09-06 11:20:14 +01:00
|
|
|
sampler->destroy(sampler);
|
|
|
|
|
2009-08-22 22:26:55 +01:00
|
|
|
/*
|
|
|
|
* Convert the fs's output color and mask to fit to the blending type.
|
|
|
|
*/
|
|
|
|
|
2009-08-22 12:39:44 +01:00
|
|
|
for(chan = 0; chan < NUM_CHANNELS; ++chan) {
|
|
|
|
lp_build_conv(builder, fs_type, blend_type,
|
|
|
|
fs_out_color[chan], num_fs,
|
|
|
|
&blend_in_color[chan], 1);
|
|
|
|
lp_build_name(blend_in_color[chan], "color.%c", "rgba"[chan]);
|
2009-08-23 07:38:41 +01:00
|
|
|
|
2009-08-14 10:27:32 +01:00
|
|
|
}
|
|
|
|
|
2009-08-22 12:39:44 +01:00
|
|
|
lp_build_conv_mask(builder, fs_type, blend_type,
|
|
|
|
fs_mask, num_fs,
|
|
|
|
&blend_mask, 1);
|
2009-08-21 07:48:04 +01:00
|
|
|
|
2009-08-22 22:26:55 +01:00
|
|
|
/*
|
|
|
|
* Blending.
|
|
|
|
*/
|
|
|
|
|
2009-08-22 12:39:44 +01:00
|
|
|
generate_blend(&key->blend,
|
|
|
|
builder,
|
|
|
|
blend_type,
|
2009-08-23 07:38:41 +01:00
|
|
|
context_ptr,
|
2009-08-22 12:39:44 +01:00
|
|
|
blend_mask,
|
|
|
|
blend_in_color,
|
|
|
|
color_ptr);
|
2009-08-16 21:01:57 +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
|
|
|
/*
|
|
|
|
* Translate the LLVM IR into machine code.
|
|
|
|
*/
|
|
|
|
|
2009-08-19 20:42:50 +01:00
|
|
|
LLVMRunFunctionPassManager(screen->pass, variant->function);
|
2009-08-14 10:27:32 +01:00
|
|
|
|
|
|
|
#ifdef DEBUG
|
2009-08-19 20:42:50 +01:00
|
|
|
LLVMDumpValue(variant->function);
|
2009-08-14 10:27:32 +01:00
|
|
|
debug_printf("\n");
|
|
|
|
#endif
|
|
|
|
|
2009-08-19 20:42:50 +01:00
|
|
|
if(LLVMVerifyFunction(variant->function, LLVMPrintMessageAction)) {
|
|
|
|
LLVMDumpValue(variant->function);
|
2009-08-14 10:27:32 +01:00
|
|
|
abort();
|
|
|
|
}
|
|
|
|
|
2009-08-23 05:52:20 +01:00
|
|
|
variant->jit_function = (lp_jit_frag_func)LLVMGetPointerToGlobal(screen->engine, variant->function);
|
2009-08-14 10:27:32 +01:00
|
|
|
|
2009-08-16 11:50:17 +01:00
|
|
|
#ifdef DEBUG
|
2009-08-19 20:42:50 +01:00
|
|
|
lp_disassemble(variant->jit_function);
|
2009-08-16 11:50:17 +01:00
|
|
|
#endif
|
|
|
|
|
2009-08-19 20:42:50 +01:00
|
|
|
variant->next = shader->variants;
|
|
|
|
shader->variants = variant;
|
|
|
|
|
|
|
|
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);
|
|
|
|
|
|
|
|
llvmpipe->fs = (struct lp_fragment_shader *) fs;
|
|
|
|
|
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);
|
2009-08-19 20:42:50 +01:00
|
|
|
|
|
|
|
variant = shader->variants;
|
|
|
|
while(variant) {
|
|
|
|
struct lp_fragment_shader_variant *next = variant->next;
|
|
|
|
|
|
|
|
if(variant->function) {
|
|
|
|
if(variant->jit_function)
|
|
|
|
LLVMFreeMachineCodeForFunction(screen->engine, variant->function);
|
|
|
|
LLVMDeleteFunction(variant->function);
|
|
|
|
}
|
|
|
|
|
|
|
|
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,
|
|
|
|
const struct pipe_constant_buffer *buf)
|
|
|
|
{
|
|
|
|
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
|
|
|
|
|
|
|
|
assert(shader < PIPE_SHADER_TYPES);
|
|
|
|
assert(index == 0);
|
|
|
|
|
|
|
|
/* note: reference counting */
|
|
|
|
pipe_buffer_reference(&llvmpipe->constants[shader].buffer,
|
|
|
|
buf ? buf->buffer : NULL);
|
|
|
|
|
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,
|
|
|
|
struct lp_fragment_shader_variant_key *key)
|
|
|
|
{
|
|
|
|
memset(key, 0, sizeof *key);
|
|
|
|
|
2009-08-24 15:55:15 +01:00
|
|
|
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 */
|
|
|
|
|
2009-08-24 15:55:15 +01:00
|
|
|
memcpy(&key->blend, lp->blend, sizeof key->blend);
|
2009-08-23 07:38:41 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
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;
|
|
|
|
|
2009-08-23 07:38:41 +01:00
|
|
|
make_variant_key(lp, &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)
|
2009-08-22 12:39:44 +01:00
|
|
|
variant = generate_fragment(lp, shader, &key);
|
2009-08-19 20:42:50 +01:00
|
|
|
|
|
|
|
shader->current = variant;
|
|
|
|
}
|