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+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "storagesoa.h"
+
+#include "gallivm_p.h"
+
+#include "pipe/p_shader_tokens.h"
+#include "pipe/p_debug.h"
+
+#include <llvm/BasicBlock.h>
+#include <llvm/Module.h>
+#include <llvm/Value.h>
+
+#include <llvm/CallingConv.h>
+#include <llvm/Constants.h>
+#include <llvm/DerivedTypes.h>
+#include <llvm/InstrTypes.h>
+#include <llvm/Instructions.h>
+
+using namespace llvm;
+
+
+StorageSoa::StorageSoa(llvm::BasicBlock *block,
+ llvm::Value *input,
+ llvm::Value *output,
+ llvm::Value *consts,
+ llvm::Value *temps)
+ : m_block(block),
+ m_input(input),
+ m_output(output),
+ m_consts(consts),
+ m_temps(temps),
+ m_immediates(0),
+ m_idx(0)
+{
+}
+
+void StorageSoa::addImmediate(float *vec)
+{
+ std::vector<float> vals(4);
+ vals[0] = vec[0];
+ vals[1] = vec[1];
+ vals[2] = vec[2];
+ vals[3] = vec[3];
+ m_immediatesToFlush.push_back(vals);
+}
+
+void StorageSoa::declareImmediates()
+{
+ if (m_immediatesToFlush.empty())
+ return;
+
+ VectorType *vectorType = VectorType::get(Type::FloatTy, 4);
+ ArrayType *vectorChannels = ArrayType::get(vectorType, 4);
+ ArrayType *arrayType = ArrayType::get(vectorChannels, m_immediatesToFlush.size());
+
+ m_immediates = new GlobalVariable(
+ /*Type=*/arrayType,
+ /*isConstant=*/false,
+ /*Linkage=*/GlobalValue::ExternalLinkage,
+ /*Initializer=*/0, // has initializer, specified below
+ /*Name=*/name("immediates"),
+ currentModule());
+
+ std::vector<Constant*> arrayVals;
+ for (unsigned int i = 0; i < m_immediatesToFlush.size(); ++i) {
+ std::vector<float> vec = m_immediatesToFlush[i];
+ std::vector<float> vals(4);
+ std::vector<Constant*> channelArray;
+
+ vals[0] = vec[0]; vals[1] = vec[0]; vals[2] = vec[0]; vals[3] = vec[0];
+ llvm::Constant *xChannel = createConstGlobalVector(vals);
+
+ vals[0] = vec[1]; vals[1] = vec[1]; vals[2] = vec[1]; vals[3] = vec[1];
+ llvm::Constant *yChannel = createConstGlobalVector(vals);
+
+ vals[0] = vec[2]; vals[1] = vec[2]; vals[2] = vec[2]; vals[3] = vec[2];
+ llvm::Constant *zChannel = createConstGlobalVector(vals);
+
+ vals[0] = vec[3]; vals[1] = vec[3]; vals[2] = vec[3]; vals[3] = vec[3];
+ llvm::Constant *wChannel = createConstGlobalVector(vals);
+ channelArray.push_back(xChannel);
+ channelArray.push_back(yChannel);
+ channelArray.push_back(zChannel);
+ channelArray.push_back(wChannel);
+ Constant *constChannels = ConstantArray::get(vectorChannels,
+ channelArray);
+ arrayVals.push_back(constChannels);
+ }
+ Constant *constArray = ConstantArray::get(arrayType, arrayVals);
+ m_immediates->setInitializer(constArray);
+
+ m_immediatesToFlush.clear();
+}
+
+llvm::Value *StorageSoa::addrElement(int idx) const
+{
+ std::map<int, llvm::Value*>::const_iterator itr = m_addresses.find(idx);
+ if (itr == m_addresses.end()) {
+ debug_printf("Trying to access invalid shader 'address'\n");
+ return 0;
+ }
+ llvm::Value * res = (*itr).second;
+
+ res = new LoadInst(res, name("addr"), false, m_block);
+
+ return res;
+}
+
+std::vector<llvm::Value*> StorageSoa::inputElement(llvm::Value *idx)
+{
+ std::vector<llvm::Value*> res(4);
+
+ res[0] = element(m_input, idx, 0);
+ res[1] = element(m_input, idx, 1);
+ res[2] = element(m_input, idx, 2);
+ res[3] = element(m_input, idx, 3);
+
+ return res;
+}
+
+std::vector<llvm::Value*> StorageSoa::constElement(llvm::Value *idx)
+{
+ std::vector<llvm::Value*> res(4);
+ llvm::Value *xChannel, *yChannel, *zChannel, *wChannel;
+
+ xChannel = elementPointer(m_consts, idx, 0);
+ yChannel = elementPointer(m_consts, idx, 1);
+ zChannel = elementPointer(m_consts, idx, 2);
+ wChannel = elementPointer(m_consts, idx, 3);
+
+ res[0] = alignedArrayLoad(xChannel);
+ res[1] = alignedArrayLoad(yChannel);
+ res[2] = alignedArrayLoad(zChannel);
+ res[3] = alignedArrayLoad(wChannel);
+
+ return res;
+}
+
+std::vector<llvm::Value*> StorageSoa::outputElement(llvm::Value *idx)
+{
+ std::vector<llvm::Value*> res(4);
+
+ res[0] = element(m_output, idx, 0);
+ res[1] = element(m_output, idx, 1);
+ res[2] = element(m_output, idx, 2);
+ res[3] = element(m_output, idx, 3);
+
+ return res;
+}
+
+std::vector<llvm::Value*> StorageSoa::tempElement(llvm::Value *idx)
+{
+ std::vector<llvm::Value*> res(4);
+
+ res[0] = element(m_temps, idx, 0);
+ res[1] = element(m_temps, idx, 1);
+ res[2] = element(m_temps, idx, 2);
+ res[3] = element(m_temps, idx, 3);
+
+ return res;
+}
+
+std::vector<llvm::Value*> StorageSoa::immediateElement(llvm::Value *idx)
+{
+ std::vector<llvm::Value*> res(4);
+
+ res[0] = element(m_immediates, idx, 0);
+ res[1] = element(m_immediates, idx, 1);
+ res[2] = element(m_immediates, idx, 2);
+ res[3] = element(m_immediates, idx, 3);
+
+ return res;
+}
+
+llvm::Value * StorageSoa::elementPointer(llvm::Value *ptr, llvm::Value *index,
+ int channel) const
+{
+ std::vector<Value*> indices;
+ if (m_immediates == ptr)
+ indices.push_back(constantInt(0));
+ indices.push_back(index);
+ indices.push_back(constantInt(channel));
+
+ GetElementPtrInst *getElem = new GetElementPtrInst(ptr,
+ indices.begin(),
+ indices.end(),
+ name("ptr"),
+ m_block);
+ return getElem;
+}
+
+llvm::Value * StorageSoa::element(llvm::Value *ptr, llvm::Value *index,
+ int channel) const
+{
+ llvm::Value *res = elementPointer(ptr, index, channel);
+ LoadInst *load = new LoadInst(res, name("element"), false, m_block);
+ //load->setAlignment(8);
+ return load;
+}
+
+const char * StorageSoa::name(const char *prefix) const
+{
+ ++m_idx;
+ snprintf(m_name, 32, "%s%d", prefix, m_idx);
+ return m_name;
+}
+
+llvm::ConstantInt * StorageSoa::constantInt(int idx) const
+{
+ if (m_constInts.find(idx) != m_constInts.end()) {
+ return m_constInts[idx];
+ }
+ ConstantInt *constInt = ConstantInt::get(APInt(32, idx));
+ m_constInts[idx] = constInt;
+ return constInt;
+}
+
+llvm::Value *StorageSoa::alignedArrayLoad(llvm::Value *val)
+{
+ VectorType *vectorType = VectorType::get(Type::FloatTy, 4);
+ PointerType *vectorPtr = PointerType::get(vectorType, 0);
+
+ CastInst *cast = new BitCastInst(val, vectorPtr, name("toVector"), m_block);
+ LoadInst *load = new LoadInst(cast, name("alignLoad"), false, m_block);
+ load->setAlignment(8);
+ return load;
+}
+
+llvm::Module * StorageSoa::currentModule() const
+{
+ if (!m_block || !m_block->getParent())
+ return 0;
+
+ return m_block->getParent()->getParent();
+}
+
+llvm::Constant * StorageSoa::createConstGlobalVector(const std::vector<float> &vec)
+{
+ VectorType *vectorType = VectorType::get(Type::FloatTy, 4);
+ std::vector<Constant*> immValues;
+ ConstantFP *constx = ConstantFP::get(Type::FloatTy, APFloat(vec[0]));
+ ConstantFP *consty = ConstantFP::get(Type::FloatTy, APFloat(vec[1]));
+ ConstantFP *constz = ConstantFP::get(Type::FloatTy, APFloat(vec[2]));
+ ConstantFP *constw = ConstantFP::get(Type::FloatTy, APFloat(vec[3]));
+ immValues.push_back(constx);
+ immValues.push_back(consty);
+ immValues.push_back(constz);
+ immValues.push_back(constw);
+ Constant *constVector = ConstantVector::get(vectorType, immValues);
+
+ return constVector;
+}
+
+std::vector<llvm::Value*> StorageSoa::load(Argument type, int idx, int swizzle,
+ llvm::Value *indIdx)
+{
+ std::vector<llvm::Value*> val(4);
+
+ //if we have an indirect index, always use that
+ // if not use the integer offset to create one
+ llvm::Value *realIndex = 0;
+ if (indIdx)
+ realIndex = indIdx;
+ else
+ realIndex = constantInt(idx);
+ debug_printf("XXXXXXXXX realIdx = %p, indIdx = %p\n", realIndex, indIdx);
+
+ switch(type) {
+ case Input:
+ val = inputElement(realIndex);
+ break;
+ case Output:
+ val = outputElement(realIndex);
+ break;
+ case Temp:
+ val = tempElement(realIndex);
+ break;
+ case Const:
+ val = constElement(realIndex);
+ break;
+ case Immediate:
+ val = immediateElement(realIndex);
+ break;
+ case Address:
+ debug_printf("Address not handled in the load phase!\n");
+ assert(0);
+ break;
+ }
+ if (!gallivm_is_swizzle(swizzle))
+ return val;
+
+ std::vector<llvm::Value*> res(4);
+
+ res[0] = val[gallivm_x_swizzle(swizzle)];
+ res[1] = val[gallivm_y_swizzle(swizzle)];
+ res[2] = val[gallivm_z_swizzle(swizzle)];
+ res[3] = val[gallivm_w_swizzle(swizzle)];
+ return res;
+}
+
+void StorageSoa::store(Argument type, int idx, const std::vector<llvm::Value*> &val,
+ int mask)
+{
+ llvm::Value *out = 0;
+ switch(type) {
+ case Output:
+ out = m_output;
+ break;
+ case Temp:
+ out = m_temps;
+ break;
+ case Input:
+ out = m_input;
+ break;
+ case Address: {
+ llvm::Value *addr = m_addresses[idx];
+ if (!addr) {
+ addAddress(idx);
+ addr = m_addresses[idx];
+ assert(addr);
+ }
+ new StoreInst(val[0], addr, false, m_block);
+ return;
+ break;
+ }
+ default:
+ debug_printf("Can't save output of this type: %d !\n", type);
+ assert(0);
+ break;
+ }
+ llvm::Value *realIndex = constantInt(idx);
+ if ((mask & TGSI_WRITEMASK_X)) {
+ llvm::Value *xChannel = elementPointer(out, realIndex, 0);
+ new StoreInst(val[0], xChannel, false, m_block);
+ }
+ if ((mask & TGSI_WRITEMASK_Y)) {
+ llvm::Value *yChannel = elementPointer(out, realIndex, 1);
+ new StoreInst(val[1], yChannel, false, m_block);
+ }
+ if ((mask & TGSI_WRITEMASK_Z)) {
+ llvm::Value *zChannel = elementPointer(out, realIndex, 2);
+ new StoreInst(val[2], zChannel, false, m_block);
+ }
+ if ((mask & TGSI_WRITEMASK_W)) {
+ llvm::Value *wChannel = elementPointer(out, realIndex, 3);
+ new StoreInst(val[3], wChannel, false, m_block);
+ }
+}
+
+void StorageSoa::addAddress(int idx)
+{
+ GlobalVariable *val = new GlobalVariable(
+ /*Type=*/IntegerType::get(32),
+ /*isConstant=*/false,
+ /*Linkage=*/GlobalValue::ExternalLinkage,
+ /*Initializer=*/0, // has initializer, specified below
+ /*Name=*/name("address"),
+ currentModule());
+ val->setInitializer(Constant::getNullValue(IntegerType::get(32)));
+
+ debug_printf("adding to %d\n", idx);
+ m_addresses[idx] = val;
+}