1f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/************************************************************************** 2f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 3f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright 2009 VMware, Inc. 4f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * All Rights Reserved. 5f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 6f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Permission is hereby granted, free of charge, to any person obtaining a 7f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * copy of this software and associated documentation files (the 8f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * "Software"), to deal in the Software without restriction, including 9f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * without limitation the rights to use, copy, modify, merge, publish, 10f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * distribute, sub license, and/or sell copies of the Software, and to 11f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * permit persons to whom the Software is furnished to do so, subject to 12f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * the following conditions: 13f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 14f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * The above copyright notice and this permission notice (including the 15f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * next paragraph) shall be included in all copies or substantial portions 16f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * of the Software. 17f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 18f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 26f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org **************************************************************************/ 27f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 28f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 29f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 30f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * @file 31f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Blend LLVM IR generation -- AoS layout. 32f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 33f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * AoS blending is in general much slower than SoA, but there are some cases 34f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * where it might be faster. In particular, if a pixel is rendered only once 35f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * then the overhead of tiling and untiling will dominate over the speedup that 36f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * SoA gives. So we might want to detect such cases and fallback to AoS in the 37f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * future, but for now this function is here for historical/benchmarking 38f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * purposes. 39f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 40f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Run lp_blend_test after any change to this file. 41f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 42f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * @author Jose Fonseca <jfonseca@vmware.com> 43f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 44f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 45f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 46f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "pipe/p_state.h" 47f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "util/u_debug.h" 48f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "util/u_format.h" 49f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 50f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "gallivm/lp_bld_type.h" 51f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "gallivm/lp_bld_const.h" 52f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "gallivm/lp_bld_arit.h" 53f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "gallivm/lp_bld_logic.h" 54f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "gallivm/lp_bld_swizzle.h" 55f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "gallivm/lp_bld_bitarit.h" 56f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "gallivm/lp_bld_debug.h" 57f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 58f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "lp_bld_blend.h" 59f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 60f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 61f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 62f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * We may the same values several times, so we keep them here to avoid 63f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * recomputing them. Also reusing the values allows us to do simplifications 64f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * that LLVM optimization passes wouldn't normally be able to do. 65f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 66f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstruct lp_build_blend_aos_context 67f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 68f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct lp_build_context base; 69f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 70f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef src; 71f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef dst; 72f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef const_; 73f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 74f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef inv_src; 75f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef inv_dst; 76f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef inv_const; 77f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef saturate; 78f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 79f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef rgb_src_factor; 80f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef alpha_src_factor; 81f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef rgb_dst_factor; 82f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef alpha_dst_factor; 83f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 84f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 85f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 86f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic LLVMValueRef 87f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orglp_build_blend_factor_unswizzled(struct lp_build_blend_aos_context *bld, 88f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned factor, 89f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org boolean alpha) 90f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 91f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org switch (factor) { 92f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_ZERO: 93f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return bld->base.zero; 94f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_ONE: 95f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return bld->base.one; 96f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_SRC_COLOR: 97f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_SRC_ALPHA: 98f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return bld->src; 99f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_DST_COLOR: 100f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_DST_ALPHA: 101f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return bld->dst; 102f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE: 103f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if(alpha) 104f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return bld->base.one; 105f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org else { 106f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if(!bld->inv_dst) 107f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org bld->inv_dst = lp_build_comp(&bld->base, bld->dst); 108f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if(!bld->saturate) 109f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org bld->saturate = lp_build_min(&bld->base, bld->src, bld->inv_dst); 110f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return bld->saturate; 111f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 112f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_CONST_COLOR: 113f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_CONST_ALPHA: 114f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return bld->const_; 115f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_SRC1_COLOR: 116f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_SRC1_ALPHA: 117f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* TODO */ 118f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(0); 119f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return bld->base.zero; 120f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_SRC_COLOR: 121f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_SRC_ALPHA: 122f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if(!bld->inv_src) 123f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org bld->inv_src = lp_build_comp(&bld->base, bld->src); 124f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return bld->inv_src; 125f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_DST_COLOR: 126f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_DST_ALPHA: 127f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if(!bld->inv_dst) 128f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org bld->inv_dst = lp_build_comp(&bld->base, bld->dst); 129f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return bld->inv_dst; 130f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_CONST_COLOR: 131f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_CONST_ALPHA: 132f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if(!bld->inv_const) 133f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org bld->inv_const = lp_build_comp(&bld->base, bld->const_); 134f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return bld->inv_const; 135f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_SRC1_COLOR: 136f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_SRC1_ALPHA: 137f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* TODO */ 138f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(0); 139f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return bld->base.zero; 140f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org default: 141f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(0); 142f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return bld->base.zero; 143f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 144f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 145f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 146f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 147f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgenum lp_build_blend_swizzle { 148f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LP_BUILD_BLEND_SWIZZLE_RGBA = 0, 149f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LP_BUILD_BLEND_SWIZZLE_AAAA = 1 150f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 151f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 152f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 153f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 154f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * How should we shuffle the base factor. 155f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 156f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic enum lp_build_blend_swizzle 157f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orglp_build_blend_factor_swizzle(unsigned factor) 158f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 159f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org switch (factor) { 160f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_ONE: 161f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_ZERO: 162f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_SRC_COLOR: 163f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_DST_COLOR: 164f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_CONST_COLOR: 165f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_SRC1_COLOR: 166f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_SRC_COLOR: 167f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_DST_COLOR: 168f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_CONST_COLOR: 169f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_SRC1_COLOR: 170f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return LP_BUILD_BLEND_SWIZZLE_RGBA; 171f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_SRC_ALPHA: 172f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_DST_ALPHA: 173f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE: 174f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_SRC1_ALPHA: 175f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_CONST_ALPHA: 176f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_SRC_ALPHA: 177f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_DST_ALPHA: 178f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_CONST_ALPHA: 179f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case PIPE_BLENDFACTOR_INV_SRC1_ALPHA: 180f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return LP_BUILD_BLEND_SWIZZLE_AAAA; 181f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org default: 182f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(0); 183f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return LP_BUILD_BLEND_SWIZZLE_RGBA; 184f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 185f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 186f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 187f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 188f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic LLVMValueRef 189f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orglp_build_blend_swizzle(struct lp_build_blend_aos_context *bld, 190f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef rgb, 191f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef alpha, 192f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org enum lp_build_blend_swizzle rgb_swizzle, 193f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned alpha_swizzle) 194f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 195f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef swizzled_rgb; 196f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 197f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org switch (rgb_swizzle) { 198f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case LP_BUILD_BLEND_SWIZZLE_RGBA: 199f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org swizzled_rgb = rgb; 200f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 201f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case LP_BUILD_BLEND_SWIZZLE_AAAA: 202f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org swizzled_rgb = lp_build_swizzle_scalar_aos(&bld->base, rgb, alpha_swizzle); 203f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 204f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org default: 205f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(0); 206f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org swizzled_rgb = bld->base.undef; 207f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 208f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 209f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (rgb != alpha) { 210f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org swizzled_rgb = lp_build_select_aos(&bld->base, 1 << alpha_swizzle, 211f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org alpha, swizzled_rgb); 212f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 213f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 214f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return swizzled_rgb; 215f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 216f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 217f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 218f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 219f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * @sa http://www.opengl.org/sdk/docs/man/xhtml/glBlendFuncSeparate.xml 220f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 221f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic LLVMValueRef 222f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orglp_build_blend_factor(struct lp_build_blend_aos_context *bld, 223f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned rgb_factor, 224f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned alpha_factor, 225f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned alpha_swizzle) 226f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 227f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef rgb_factor_, alpha_factor_; 228f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org enum lp_build_blend_swizzle rgb_swizzle; 229f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 230f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rgb_factor_ = lp_build_blend_factor_unswizzled(bld, rgb_factor, FALSE); 231f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 232f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (alpha_swizzle != UTIL_FORMAT_SWIZZLE_NONE) { 233f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rgb_swizzle = lp_build_blend_factor_swizzle(rgb_factor); 234f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org alpha_factor_ = lp_build_blend_factor_unswizzled(bld, alpha_factor, TRUE); 235f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return lp_build_blend_swizzle(bld, rgb_factor_, alpha_factor_, rgb_swizzle, alpha_swizzle); 236f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } else { 237f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return rgb_factor_; 238f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 239f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 240f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 241f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 242f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 243f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Performs blending of src and dst pixels 244f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 245f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * @param blend the blend state of the shader variant 246f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * @param cbuf_format format of the colour buffer 247f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * @param type data type of the pixel vector 248f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * @param rt rt number 249f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * @param src blend src 250f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * @param dst blend dst 251f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * @param mask optional mask to apply to the blending result 252f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * @param const_ const blend color 253f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * @param swizzle swizzle values for RGBA 254f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 255f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * @return the result of blending src and dst 256f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 257f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgLLVMValueRef 258f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orglp_build_blend_aos(struct gallivm_state *gallivm, 259f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct pipe_blend_state *blend, 260f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const enum pipe_format *cbuf_format, 261f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct lp_type type, 262f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned rt, 263f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef src, 264f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef dst, 265f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef mask, 266f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef const_, 267f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const unsigned char swizzle[4]) 268f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 269f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct pipe_rt_blend_state * state = &blend->rt[rt]; 270f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct lp_build_blend_aos_context bld; 271f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef src_factor, dst_factor; 272f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef result; 273f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned alpha_swizzle = swizzle[3]; 274f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org boolean fullcolormask; 275f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 276f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Setup build context */ 277f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org memset(&bld, 0, sizeof bld); 278f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org lp_build_context_init(&bld.base, gallivm, type); 279f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org bld.src = src; 280f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org bld.dst = dst; 281f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org bld.const_ = const_; 282f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 283f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (swizzle[3] > UTIL_FORMAT_SWIZZLE_W || swizzle[3] == swizzle[0]) 284f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org alpha_swizzle = UTIL_FORMAT_SWIZZLE_NONE; 285f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 286f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!state->blend_enable) { 287f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org result = src; 288f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } else { 289f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org boolean rgb_alpha_same = state->rgb_src_factor == state->rgb_dst_factor && state->alpha_src_factor == state->alpha_dst_factor; 290f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(rgb_alpha_same || alpha_swizzle != UTIL_FORMAT_SWIZZLE_NONE); 291f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 292f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src_factor = lp_build_blend_factor(&bld, state->rgb_src_factor, 293f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org state->alpha_src_factor, alpha_swizzle); 294f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org dst_factor = lp_build_blend_factor(&bld, state->rgb_dst_factor, 295f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org state->alpha_dst_factor, alpha_swizzle); 296f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 297f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org result = lp_build_blend(&bld.base, 298f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org state->rgb_func, 299f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org state->rgb_src_factor, 300f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org state->rgb_dst_factor, 301f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src, 302f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org dst, 303f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src_factor, 304f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org dst_factor, 305f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rgb_alpha_same, 306f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org false); 307f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 308f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if(state->rgb_func != state->alpha_func && alpha_swizzle != UTIL_FORMAT_SWIZZLE_NONE) { 309f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef alpha; 310f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 311f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org alpha = lp_build_blend(&bld.base, 312f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org state->alpha_func, 313f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org state->alpha_src_factor, 314f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org state->alpha_dst_factor, 315f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src, 316f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org dst, 317f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src_factor, 318f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org dst_factor, 319f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org rgb_alpha_same, 320f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org false); 321f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 322f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org result = lp_build_blend_swizzle(&bld, 323f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org result, 324f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org alpha, 325f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LP_BUILD_BLEND_SWIZZLE_RGBA, 326f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org alpha_swizzle); 327f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 328f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 329f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 330f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Check if color mask is necessary */ 331f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org fullcolormask = util_format_colormask_full(util_format_description(cbuf_format[rt]), state->colormask); 332f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 333f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!fullcolormask) { 334f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org LLVMValueRef color_mask; 335f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 336f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org color_mask = lp_build_const_mask_aos_swizzled(gallivm, bld.base.type, state->colormask, swizzle); 337f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org lp_build_name(color_mask, "color_mask"); 338f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 339f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Combine with input mask if necessary */ 340f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (mask) { 341f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org mask = lp_build_and(&bld.base, color_mask, mask); 342f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } else { 343f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org mask = color_mask; 344f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 345f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 346f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 347f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Apply mask, if one exists */ 348f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (mask) { 349f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org result = lp_build_select(&bld.base, mask, result, dst); 350f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 351f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 352f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return result; 353f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 354