--- /dev/null
+/*
+* Copyright (C) 2011 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+#include "ApiGen.h"
+#include "EntryPoint.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include "strUtils.h"
+#include <errno.h>
+#include <sys/types.h>
+
+/* Define this to 1 to enable support for the 'isLarge' variable flag
+ * that instructs the encoder to send large data buffers by a direct
+ * write through the pipe (i.e. without copying it into a temporary
+ * buffer. This has definite performance benefits when using a QEMU Pipe.
+ *
+ * Set to 0 otherwise.
+ */
+#define WITH_LARGE_SUPPORT 1
+
+// Set to 1 to ensure buffers passed to/from EGL/GL are properly aligned.
+// This prevents crashes with certain backends (e.g. OSMesa).
+#define USE_ALIGNED_BUFFERS 1
+
+EntryPoint * ApiGen::findEntryByName(const std::string & name)
+{
+ EntryPoint * entry = NULL;
+
+ size_t n = this->size();
+ for (size_t i = 0; i < n; i++) {
+ if (at(i).name() == name) {
+ entry = &(at(i));
+ break;
+ }
+ }
+ return entry;
+}
+
+void ApiGen::printHeader(FILE *fp) const
+{
+ fprintf(fp, "// Generated Code - DO NOT EDIT !!\n");
+ fprintf(fp, "// generated by 'emugen'\n");
+}
+
+int ApiGen::genProcTypes(const std::string &filename, SideType side)
+{
+ FILE *fp = fopen(filename.c_str(), "wt");
+ if (fp == NULL) {
+ perror(filename.c_str());
+ return -1;
+ }
+ printHeader(fp);
+
+ const char* basename = m_basename.c_str();
+
+ fprintf(fp, "#ifndef __%s_%s_proc_t_h\n", basename, sideString(side));
+ fprintf(fp, "#define __%s_%s_proc_t_h\n", basename, sideString(side));
+ fprintf(fp, "\n\n");
+ fprintf(fp, "\n#include \"%s_types.h\"\n",basename);
+ fprintf(fp, "#ifndef %s_APIENTRY\n",basename);
+ fprintf(fp, "#define %s_APIENTRY \n",basename);
+ fprintf(fp, "#endif\n");
+
+
+ for (size_t i = 0; i < size(); i++) {
+ EntryPoint *e = &at(i);
+
+ fprintf(fp, "typedef ");
+ e->retval().printType(fp);
+ fprintf(fp, " (%s_APIENTRY *%s_%s_proc_t) (", basename, e->name().c_str(), sideString(side));
+ if (side == CLIENT_SIDE) { fprintf(fp, "void * ctx"); }
+ if (e->customDecoder() && side == SERVER_SIDE) { fprintf(fp, "void *ctx"); }
+
+ VarsArray & evars = e->vars();
+ size_t n = evars.size();
+
+ for (size_t j = 0; j < n; j++) {
+ if (!evars[j].isVoid()) {
+ if (j != 0 || side == CLIENT_SIDE || (side == SERVER_SIDE && e->customDecoder())) fprintf(fp, ", ");
+ evars[j].printType(fp);
+ }
+ }
+ fprintf(fp, ");\n");
+ }
+ fprintf(fp, "\n\n#endif\n");
+ return 0;
+}
+
+int ApiGen::genFuncTable(const std::string &filename, SideType side)
+{
+ FILE *fp = fopen(filename.c_str(), "wt");
+ if (fp == NULL) {
+ perror(filename.c_str());
+ return -1;
+ }
+ printHeader(fp);
+
+ fprintf(fp, "#ifndef __%s_%s_ftable_t_h\n", m_basename.c_str(), sideString(side));
+ fprintf(fp, "#define __%s_%s_ftable_t_h\n", m_basename.c_str(), sideString(side));
+ fprintf(fp, "\n\n");
+ fprintf(fp, "static const struct _%s_funcs_by_name {\n", m_basename.c_str());
+ fprintf(fp,
+ "\tconst char *name;\n" \
+ "\tvoid *proc;\n" \
+ "} %s_funcs_by_name[] = {\n", m_basename.c_str());
+
+
+ for (size_t i = 0; i < size(); i++) {
+ EntryPoint *e = &at(i);
+ if (e->notApi()) continue;
+ fprintf(fp, "\t{\"%s\", (void*)%s},\n", e->name().c_str(), e->name().c_str());
+ }
+ fprintf(fp, "};\n");
+ fprintf(fp, "static const int %s_num_funcs = sizeof(%s_funcs_by_name) / sizeof(struct _%s_funcs_by_name);\n",
+ m_basename.c_str(), m_basename.c_str(), m_basename.c_str());
+ fprintf(fp, "\n\n#endif\n");
+ return 0;
+}
+
+int ApiGen::genContext(const std::string & filename, SideType side)
+{
+ FILE *fp = fopen(filename.c_str(), "wt");
+ if (fp == NULL) {
+ perror(filename.c_str());
+ return -1;
+ }
+ printHeader(fp);
+
+ fprintf(fp, "#ifndef __%s_%s_context_t_h\n", m_basename.c_str(), sideString(side));
+ fprintf(fp, "#define __%s_%s_context_t_h\n", m_basename.c_str(), sideString(side));
+
+ fprintf(fp, "\n#include \"%s_%s_proc.h\"\n",
+ m_basename.c_str(),
+ side == CLIENT_SIDE ? "client" : "server");
+ fprintf(fp, "\n#include \"%s_types.h\"\n", m_basename.c_str());
+
+ StringVec & contextHeaders = side == CLIENT_SIDE ? m_clientContextHeaders : m_serverContextHeaders;
+ for (size_t i = 0; i < contextHeaders.size(); i++) {
+ fprintf(fp, "#include %s\n", contextHeaders[i].c_str());
+ }
+ fprintf(fp, "\n");
+
+ fprintf(fp, "\nstruct %s_%s_context_t {\n\n",
+ m_basename.c_str(), sideString(side));
+
+ // API entry points
+ for (size_t i = 0; i < size(); i++) {
+ EntryPoint *e = &at(i);
+ fprintf(fp, "\t%s_%s_proc_t %s;\n", e->name().c_str(), sideString(side), e->name().c_str());
+ }
+
+ // virtual destructor
+ fprintf(fp, "\t virtual ~%s_%s_context_t() {}\n", m_basename.c_str(), sideString(side));
+ // accessor
+ if (side == CLIENT_SIDE || side == WRAPPER_SIDE) {
+ fprintf(fp, "\n\ttypedef %s_%s_context_t *CONTEXT_ACCESSOR_TYPE(void);\n",
+ m_basename.c_str(), sideString(side));
+ fprintf(fp, "\tstatic void setContextAccessor(CONTEXT_ACCESSOR_TYPE *f);\n");
+ }
+
+ // init function
+ fprintf(fp, "\tint initDispatchByName( void *(*getProc)(const char *name, void *userData), void *userData);\n");
+
+ //client site set error virtual func
+ if (side == CLIENT_SIDE) {
+ fprintf(fp, "\tvirtual void setError(unsigned int error){ (void)error; };\n");
+ fprintf(fp, "\tvirtual unsigned int getError(){ return 0; };\n");
+ }
+
+ fprintf(fp, "};\n");
+
+ fprintf(fp, "\n#endif\n");
+ fclose(fp);
+ return 0;
+}
+
+int ApiGen::genEntryPoints(const std::string & filename, SideType side)
+{
+
+ if (side != CLIENT_SIDE && side != WRAPPER_SIDE) {
+ fprintf(stderr, "Entry points are only defined for Client and Wrapper components\n");
+ return -999;
+ }
+
+
+ FILE *fp = fopen(filename.c_str(), "wt");
+ if (fp == NULL) {
+ perror(filename.c_str());
+ return errno;
+ }
+
+ printHeader(fp);
+ fprintf(fp, "#include <stdio.h>\n");
+ fprintf(fp, "#include <stdlib.h>\n");
+ fprintf(fp, "#include \"%s_%s_context.h\"\n", m_basename.c_str(), sideString(side));
+ fprintf(fp, "\n");
+
+ fprintf(fp, "#ifndef GL_TRUE\n");
+ fprintf(fp, "extern \"C\" {\n");
+
+ for (size_t i = 0; i < size(); i++) {
+ fprintf(fp, "\t"); at(i).print(fp, false); fprintf(fp, ";\n");
+ }
+ fprintf(fp, "};\n\n");
+ fprintf(fp, "#endif\n");
+
+ fprintf(fp, "#ifndef GET_CONTEXT\n");
+ fprintf(fp, "static %s_%s_context_t::CONTEXT_ACCESSOR_TYPE *getCurrentContext = NULL;\n",
+ m_basename.c_str(), sideString(side));
+
+ fprintf(fp,
+ "void %s_%s_context_t::setContextAccessor(CONTEXT_ACCESSOR_TYPE *f) { getCurrentContext = f; }\n",
+ m_basename.c_str(), sideString(side));
+ fprintf(fp, "#define GET_CONTEXT %s_%s_context_t * ctx = getCurrentContext()\n",
+ m_basename.c_str(), sideString(side));
+ fprintf(fp, "#endif\n\n");
+
+
+ for (size_t i = 0; i < size(); i++) {
+ EntryPoint *e = &at(i);
+ e->print(fp);
+ fprintf(fp, "{\n");
+ fprintf(fp, "\tGET_CONTEXT;\n");
+
+ bool shouldReturn = !e->retval().isVoid();
+ bool shouldCallWithContext = (side == CLIENT_SIDE);
+ //param check
+ if (shouldCallWithContext) {
+ for (size_t j=0; j<e->vars().size(); j++) {
+ if (e->vars()[j].paramCheckExpression() != "")
+ fprintf(fp, "\t%s\n", e->vars()[j].paramCheckExpression().c_str());
+ }
+ }
+ fprintf(fp, "\t%sctx->%s(%s",
+ shouldReturn ? "return " : "",
+ e->name().c_str(),
+ shouldCallWithContext ? "ctx" : "");
+ size_t nvars = e->vars().size();
+
+ for (size_t j = 0; j < nvars; j++) {
+ if (!e->vars()[j].isVoid()) {
+ fprintf(fp, "%s %s",
+ j != 0 || shouldCallWithContext ? "," : "",
+ e->vars()[j].name().c_str());
+ }
+ }
+ fprintf(fp, ");\n");
+ fprintf(fp, "}\n\n");
+ }
+ fclose(fp);
+ return 0;
+}
+
+
+int ApiGen::genOpcodes(const std::string &filename)
+{
+ FILE *fp = fopen(filename.c_str(), "wt");
+ if (fp == NULL) {
+ perror(filename.c_str());
+ return errno;
+ }
+
+ printHeader(fp);
+ fprintf(fp, "#ifndef __GUARD_%s_opcodes_h_\n", m_basename.c_str());
+ fprintf(fp, "#define __GUARD_%s_opcodes_h_\n\n", m_basename.c_str());
+ for (size_t i = 0; i < size(); i++) {
+ fprintf(fp, "#define OP_%s \t\t\t\t\t%u\n", at(i).name().c_str(), (unsigned int)i + m_baseOpcode);
+ }
+ fprintf(fp, "#define OP_last \t\t\t\t\t%u\n", (unsigned int)size() + m_baseOpcode);
+ fprintf(fp,"\n\n#endif\n");
+ fclose(fp);
+ return 0;
+
+}
+int ApiGen::genAttributesTemplate(const std::string &filename )
+{
+ FILE *fp = fopen(filename.c_str(), "wt");
+ if (fp == NULL) {
+ perror(filename.c_str());
+ return -1;
+ }
+
+ for (size_t i = 0; i < size(); i++) {
+ if (at(i).hasPointers()) {
+ fprintf(fp, "#");
+ at(i).print(fp);
+ fprintf(fp, "%s\n\n", at(i).name().c_str());
+ }
+ }
+ fclose(fp);
+ return 0;
+}
+
+int ApiGen::genEncoderHeader(const std::string &filename)
+{
+ FILE *fp = fopen(filename.c_str(), "wt");
+ if (fp == NULL) {
+ perror(filename.c_str());
+ return -1;
+ }
+
+ printHeader(fp);
+ std::string classname = m_basename + "_encoder_context_t";
+
+ fprintf(fp, "\n#ifndef GUARD_%s\n", classname.c_str());
+ fprintf(fp, "#define GUARD_%s\n\n", classname.c_str());
+
+ fprintf(fp, "#include \"IOStream.h\"\n");
+ fprintf(fp, "#include \"ChecksumCalculator.h\"\n");
+ fprintf(fp, "#include \"%s_%s_context.h\"\n\n\n", m_basename.c_str(), sideString(CLIENT_SIDE));
+
+ for (size_t i = 0; i < m_encoderHeaders.size(); i++) {
+ fprintf(fp, "#include %s\n", m_encoderHeaders[i].c_str());
+ }
+ fprintf(fp, "\n");
+
+ fprintf(fp, "struct %s : public %s_%s_context_t {\n\n",
+ classname.c_str(), m_basename.c_str(), sideString(CLIENT_SIDE));
+ fprintf(fp, "\tIOStream *m_stream;\n");
+ fprintf(fp, "\tChecksumCalculator *m_checksumCalculator;\n\n");
+
+ fprintf(fp, "\t%s(IOStream *stream, ChecksumCalculator *checksumCalculator);\n", classname.c_str());
+ fprintf(fp, "};\n\n");
+
+ fprintf(fp, "#endif // GUARD_%s", classname.c_str());
+
+ fclose(fp);
+ return 0;
+}
+
+// Format the byte length expression for a given variable into a user-provided buffer
+// If the variable type is not a pointer, this is simply its size as a decimal constant
+// If the variable is a pointer, this will be an expression provided by the .attrib file
+// through the 'len' attribute.
+//
+// Returns 1 if the variable is a pointer, 0 otherwise
+//
+static int getVarEncodingSizeExpression(Var& var, EntryPoint* e, char* buff, size_t bufflen)
+{
+ int ret = 0;
+ if (!var.isPointer()) {
+ snprintf(buff, bufflen, "%u", (unsigned int) var.type()->bytes());
+ } else {
+ ret = 1;
+ const char* lenExpr = var.lenExpression().c_str();
+ const char* varname = var.name().c_str();
+ if (e != NULL && lenExpr[0] == '\0') {
+ fprintf(stderr, "%s: data len is undefined for '%s'\n",
+ e->name().c_str(), varname);
+ }
+ if (var.nullAllowed()) {
+ snprintf(buff, bufflen, "((%s != NULL) ? %s : 0)", varname, lenExpr);
+ } else {
+ snprintf(buff, bufflen, "%s", lenExpr);
+ }
+ }
+ return ret;
+}
+
+static int writeVarEncodingSize(Var& var, FILE* fp)
+{
+ int ret = 0;
+ if (!var.isPointer()) {
+ fprintf(fp, "%u", (unsigned int) var.type()->bytes());
+ } else {
+ ret = 1;
+ fprintf(fp, "__size_%s", var.name().c_str());
+ }
+ return ret;
+}
+
+
+
+static void writeVarEncodingExpression(Var& var, FILE* fp)
+{
+ const char* varname = var.name().c_str();
+
+ if (var.isPointer()) {
+ // encode a pointer header
+ fprintf(fp, "\t*(unsigned int *)(ptr) = __size_%s; ptr += 4;\n", varname);
+
+ Var::PointerDir dir = var.pointerDir();
+ if (dir == Var::POINTER_INOUT || dir == Var::POINTER_IN) {
+ if (var.nullAllowed()) {
+ fprintf(fp, "\tif (%s != NULL) ", varname);
+ } else {
+ fprintf(fp, "\t");
+ }
+
+ if (var.packExpression().size() != 0) {
+ fprintf(fp, "%s;", var.packExpression().c_str());
+ } else {
+ fprintf(fp, "memcpy(ptr, %s, __size_%s);",
+ varname, varname);
+ }
+
+ fprintf(fp, "ptr += __size_%s;\n", varname);
+ }
+ } else {
+ // encode a non pointer variable
+ if (!var.isVoid()) {
+ fprintf(fp, "\t\tmemcpy(ptr, &%s, %u); ptr += %u;\n",
+ varname,
+ (unsigned) var.type()->bytes(),
+ (unsigned) var.type()->bytes());
+ }
+ }
+}
+
+#if WITH_LARGE_SUPPORT
+static void writeVarLargeEncodingExpression(Var& var, FILE* fp)
+{
+ const char* varname = var.name().c_str();
+
+ fprintf(fp, "\tstream->writeFully(&__size_%s,4);\n", varname);
+ fprintf(fp, "\tif (useChecksum) checksumCalculator->addBuffer(&__size_%s,4);\n", varname);
+ if (var.nullAllowed()) {
+ fprintf(fp, "\tif (%s != NULL) {\n", varname);
+ }
+ if (var.writeExpression() != "") {
+ fprintf(fp, "%s", var.writeExpression().c_str());
+ } else {
+ fprintf(fp, "\t\tstream->writeFully(%s, __size_%s);\n", varname, varname);
+ fprintf(fp, "\t\tif (useChecksum) checksumCalculator->addBuffer(%s, __size_%s);\n", varname, varname);
+ }
+ if (var.nullAllowed()) fprintf(fp, "\t}\n");
+}
+#endif /* WITH_LARGE_SUPPORT */
+
+static void writeEncodingChecksumValidatorOnReturn(const char* funcName, FILE* fp) {
+ fprintf(fp, "\tif (useChecksum) {\n"
+ "\t\tstd::unique_ptr<unsigned char[]> checksumBuf(new unsigned char[checksumSize]);\n"
+ "\t\tstream->readback(checksumBuf.get(), checksumSize);\n"
+ "\t\tif (!checksumCalculator->validate(checksumBuf.get(), checksumSize)) {\n"
+ "\t\t\tALOGE(\"%s: GL communication error, please report this issue to b.android.com.\\n\");\n"
+ "\t\t\tabort();\n"
+ "\t\t}\n"
+ "\t}\n",
+ funcName
+ );
+}
+
+int ApiGen::genEncoderImpl(const std::string &filename)
+{
+ FILE *fp = fopen(filename.c_str(), "wt");
+ if (fp == NULL) {
+ perror(filename.c_str());
+ return -1;
+ }
+
+ printHeader(fp);
+ fprintf(fp, "\n\n");
+ fprintf(fp, "#include <memory>\n");
+ fprintf(fp, "#include <string.h>\n");
+ fprintf(fp, "#include \"%s_opcodes.h\"\n\n", m_basename.c_str());
+ fprintf(fp, "#include \"%s_enc.h\"\n\n\n", m_basename.c_str());
+ fprintf(fp, "#include <stdio.h>\n\n");
+ fprintf(fp, "namespace {\n\n");
+
+ // unsupport printout
+ fprintf(fp,
+ "void enc_unsupported()\n"
+ "{\n"
+ "\tALOGE(\"Function is unsupported\\n\");\n"
+ "}\n\n");
+
+ // entry points;
+ std::string classname = m_basename + "_encoder_context_t";
+
+ size_t n = size();
+ for (size_t i = 0; i < n; i++) {
+ EntryPoint *e = &at(i);
+
+ if (e->unsupported()) continue;
+
+
+ e->print(fp, true, "_enc", /* classname + "::" */"", "void *self");
+ fprintf(fp, "{\n");
+
+// fprintf(fp, "\n\tDBG(\">>>> %s\\n\");\n", e->name().c_str());
+ fprintf(fp, "\n\t%s *ctx = (%s *)self;\n",
+ classname.c_str(),
+ classname.c_str());
+ fprintf(fp, "\tIOStream *stream = ctx->m_stream;\n"
+ "\tChecksumCalculator *checksumCalculator = ctx->m_checksumCalculator;\n"
+ "\tbool useChecksum = checksumCalculator->getVersion() > 0;\n\n");
+ VarsArray & evars = e->vars();
+ size_t maxvars = evars.size();
+ size_t j;
+
+ char buff[256];
+
+ // Define the __size_XXX variables that contain the size of data
+ // associated with pointers.
+ for (j = 0; j < maxvars; j++) {
+ Var& var = evars[j];
+
+ if (!var.isPointer())
+ continue;
+
+ const char* varname = var.name().c_str();
+ fprintf(fp, "\tconst unsigned int __size_%s = ", varname);
+
+ getVarEncodingSizeExpression(var, e, buff, sizeof(buff));
+ fprintf(fp, "%s;\n", buff);
+ }
+
+ bool hasLargeFields = false;
+#if WITH_LARGE_SUPPORT
+ // We need to take care of 'isLarge' variable in a special way
+ // Anything before an isLarge variable can be packed into a single
+ // buffer, which is then commited. Each isLarge variable is a pointer
+ // to data that can be written to directly through the pipe, which
+ // will be instant when using a QEMU pipe
+
+ size_t nvars = 0;
+ size_t npointers = 0;
+
+ // First, compute the total size, 8 bytes for the opcode + payload size (without checksum)
+ fprintf(fp, "\t unsigned char *ptr;\n");
+ fprintf(fp, "\t unsigned char *buf;\n");
+ fprintf(fp, "\t const size_t sizeWithoutChecksum = 8");
+
+ for (j = 0; j < maxvars; j++) {
+ fprintf(fp, " + ");
+ npointers += writeVarEncodingSize(evars[j], fp);
+ }
+ if (npointers > 0) {
+ fprintf(fp, " + %zu*4", npointers);
+ }
+ fprintf(fp, ";\n");
+
+ // Then, size of the checksum string
+ fprintf(fp, "\t const size_t checksumSize = checksumCalculator->checksumByteSize();\n");
+
+ // And, size of the whole thing
+ fprintf(fp, "\t const size_t totalSize = sizeWithoutChecksum + checksumSize;\n");
+
+ // We need to divide the packet into fragments. Each fragment contains
+ // either copied arguments to a temporary buffer, or direct writes for
+ // large variables.
+ //
+ // The first fragment must also contain the opcode+payload_size+checksum_size
+ //
+ nvars = 0;
+ while (nvars < maxvars || maxvars == 0) {
+
+ // Skip over non-large fields
+ for (j = nvars; j < maxvars; j++) {
+ if (evars[j].isLarge())
+ break;
+ }
+
+ // Write a fragment if needed.
+ if (nvars == 0 || j > nvars) {
+ const char* plus = "";
+
+ if (nvars == 0 && j == maxvars) {
+ // Simple shortcut for the common case where we don't have large variables;
+ fprintf(fp, "\tbuf = stream->alloc(totalSize);\n");
+
+ } else {
+ hasLargeFields = true;
+ // allocate buffer from the stream until the first large variable
+ fprintf(fp, "\tbuf = stream->alloc(");
+ plus = "";
+
+ if (nvars == 0) {
+ fprintf(fp,"8"); plus = " + ";
+ }
+ if (j > nvars) {
+ npointers = 0;
+ for (j = nvars; j < maxvars && !evars[j].isLarge(); j++) {
+ fprintf(fp, "%s", plus); plus = " + ";
+ npointers += writeVarEncodingSize(evars[j], fp);
+ }
+ if (npointers > 0) {
+ fprintf(fp, "%s%zu*4", plus, npointers); plus = " + ";
+ }
+ }
+ fprintf(fp,");\n");
+ }
+ fprintf(fp, "\tptr = buf;\n");
+
+ // encode packet header if needed.
+ if (nvars == 0) {
+ fprintf(fp, "\tint tmp = OP_%s;memcpy(ptr, &tmp, 4); ptr += 4;\n", e->name().c_str());
+ fprintf(fp, "\tmemcpy(ptr, &totalSize, 4); ptr += 4;\n\n");
+ }
+
+ if (maxvars == 0) {
+ fprintf(fp, "\n\tif (useChecksum) checksumCalculator->addBuffer(buf, ptr-buf);\n");
+ break;
+ }
+
+ // encode non-large fields in this fragment
+ for (j = nvars; j < maxvars && !evars[j].isLarge(); j++) {
+ writeVarEncodingExpression(evars[j],fp);
+ }
+
+ fprintf(fp, "\n\tif (useChecksum) checksumCalculator->addBuffer(buf, ptr-buf);\n");
+ // Ensure the fragment is commited if it is followed by a large variable
+ if (j < maxvars) {
+ fprintf(fp, "\tstream->flush();\n");
+ }
+ }
+
+ // If we have one or more large variables, write them directly.
+ // As size + data
+ for ( ; j < maxvars && evars[j].isLarge(); j++) {
+ writeVarLargeEncodingExpression(evars[j], fp);
+ }
+
+ nvars = j;
+ }
+
+#else /* !WITH_LARGE_SUPPORT */
+ size_t nvars = evars.size();
+ size_t npointers = 0;
+ fprintf(fp, "\t const size_t sizeWithoutChecksum = 8");
+ for (size_t j = 0; j < nvars; j++) {
+ npointers += getVarEncodingSizeExpression(evars[j],e,buff,sizeof(buff));
+ fprintf(fp, " + %s", buff);
+ }
+ fprintf(fp, " + %u * 4;\n", (unsigned int) npointers);
+ // Size of checksum
+ fprintf(fp, "\t const size_t checksumSize = checksumCalculator->checksumByteSize();\n");
+ // Size of the whole thing
+ fprintf(fp, "\t const size_t totalSize = sizeWithoutChecksum + checksumSize;\n");
+
+ // allocate buffer from the stream;
+ fprintf(fp, "\t unsigned char *ptr = stream->alloc(sizeWithoutChecksum);\n\n");
+
+ // encode into the stream;
+ fprintf(fp, "\tint tmp = OP_%s; memcpy(ptr, &tmp, 4); ptr += 4;\n", e->name().c_str());
+ fprintf(fp, "\tmemcpy(ptr, &sizeWithoutChecksum, 4); ptr += 4;\n\n");
+
+ // out variables
+ for (size_t j = 0; j < nvars; j++) {
+ writeVarEncodingExpression(evars[j], fp);
+ }
+#endif /* !WITH_LARGE_SUPPORT */
+
+ // checksum
+ if (hasLargeFields) {
+ fprintf(fp, "\tbuf = stream->alloc(checksumSize);\n");
+ fprintf(fp, "\tif (useChecksum) checksumCalculator->writeChecksum(buf, checksumSize);\n\n");
+ } else {
+ fprintf(fp, "\tif (useChecksum) checksumCalculator->writeChecksum(ptr, checksumSize); ptr += checksumSize;\n\n");
+ }
+
+ // in variables;
+ bool hasReadbackChecksum = false;
+ for (size_t j = 0; j < nvars; j++) {
+ if (evars[j].isPointer()) {
+ Var::PointerDir dir = evars[j].pointerDir();
+ if (dir == Var::POINTER_INOUT || dir == Var::POINTER_OUT) {
+ const char* varname = evars[j].name().c_str();
+ const char* indent = "\t";
+ if (evars[j].nullAllowed()) {
+ fprintf(fp, "\tif (%s != NULL) {\n",varname);
+ indent = "\t\t";
+ }
+ fprintf(fp, "%sstream->readback(%s, __size_%s);\n",
+ indent, varname, varname);
+ fprintf(fp, "%sif (useChecksum) checksumCalculator->addBuffer(%s, __size_%s);\n",
+ indent, varname, varname);
+ if (evars[j].nullAllowed()) {
+ fprintf(fp, "\t}\n");
+ }
+ hasReadbackChecksum = true;
+ }
+ }
+ }
+//XXX fprintf(fp, "\n\tDBG(\"<<<< %s\\n\");\n", e->name().c_str());
+
+ // todo - return value for pointers
+ if (e->retval().isPointer()) {
+ fprintf(stderr, "WARNING: %s : return value of pointer is unsupported\n",
+ e->name().c_str());
+ if (e->flushOnEncode()) {
+ fprintf(fp, "\tstream->flush();\n");
+ }
+ fprintf(fp, "\t return NULL;\n");
+ } else if (e->retval().type()->name() != "void") {
+ fprintf(fp, "\n\t%s retval;\n", e->retval().type()->name().c_str());
+ fprintf(fp, "\tstream->readback(&retval, %u);\n",(unsigned) e->retval().type()->bytes());
+ fprintf(fp, "\tif (useChecksum) checksumCalculator->addBuffer(&retval, %u);\n",
+ (unsigned) e->retval().type()->bytes());
+ writeEncodingChecksumValidatorOnReturn(e->name().c_str(), fp);
+ fprintf(fp, "\treturn retval;\n");
+ } else {
+ if (e->flushOnEncode()) fprintf(fp, "\tstream->flush();\n");
+ if (hasReadbackChecksum) writeEncodingChecksumValidatorOnReturn(e->name().c_str(), fp);
+ }
+ fprintf(fp, "}\n\n");
+ }
+
+ fprintf(fp, "} // namespace\n\n");
+
+ // constructor
+ fprintf(fp, "%s::%s(IOStream *stream, ChecksumCalculator *checksumCalculator)\n{\n", classname.c_str(), classname.c_str());
+ fprintf(fp, "\tm_stream = stream;\n");
+ fprintf(fp, "\tm_checksumCalculator = checksumCalculator;\n\n");
+
+ for (size_t i = 0; i < n; i++) {
+ EntryPoint *e = &at(i);
+ if (e->unsupported()) {
+ fprintf(fp,
+ "\tthis->%s = (%s_%s_proc_t) &enc_unsupported;\n",
+ e->name().c_str(),
+ e->name().c_str(),
+ sideString(CLIENT_SIDE));
+ } else {
+ fprintf(fp,
+ "\tthis->%s = &%s_enc;\n",
+ e->name().c_str(),
+ e->name().c_str());
+ }
+ }
+ fprintf(fp, "}\n\n");
+
+ fclose(fp);
+ return 0;
+}
+
+
+int ApiGen::genDecoderHeader(const std::string &filename)
+{
+ FILE *fp = fopen(filename.c_str(), "wt");
+ if (fp == NULL) {
+ perror(filename.c_str());
+ return -1;
+ }
+
+ printHeader(fp);
+ std::string classname = m_basename + "_decoder_context_t";
+
+ fprintf(fp, "\n#ifndef GUARD_%s\n", classname.c_str());
+ fprintf(fp, "#define GUARD_%s\n\n", classname.c_str());
+
+ fprintf(fp, "#include \"IOStream.h\" \n");
+ fprintf(fp, "#include \"%s_%s_context.h\"\n\n\n", m_basename.c_str(), sideString(SERVER_SIDE));
+ if (strcmp(classname.c_str(), "gles2_decoder_context_t") == 0) {
+ fprintf(fp, "\n#include <map>\n");
+ fprintf(fp, "\n#include <mutex>\n");
+ }
+ fprintf(fp, "\n#include \"emugl/common/logging.h\"\n");
+
+ for (size_t i = 0; i < m_decoderHeaders.size(); i++) {
+ fprintf(fp, "#include %s\n", m_decoderHeaders[i].c_str());
+ }
+ fprintf(fp, "\n");
+
+ fprintf(fp, "struct %s : public %s_%s_context_t {\n\n",
+ classname.c_str(), m_basename.c_str(), sideString(SERVER_SIDE));
+ fprintf(fp, "\tsize_t decode(void *buf, size_t bufsize, IOStream *stream);\n");
+ if (strcmp(classname.c_str(), "gles2_decoder_context_t") == 0){
+ fprintf(fp,
+ "\tvoid freeShader(); \n\
+ \tvoid freeProgram(); \n\
+ \tstd::map<GLuint, GLuint> m_programs; \n\
+ \tstd::map<GLuint, GLuint> m_shaders; \n\
+ \tstd::mutex m_lock; \n\
+ ");
+
+
+ }
+ fprintf(fp, "\n};\n\n");
+ fprintf(fp, "#endif // GUARD_%s\n", classname.c_str());
+
+ fclose(fp);
+ return 0;
+}
+
+int ApiGen::genContextImpl(const std::string &filename, SideType side)
+{
+ FILE *fp = fopen(filename.c_str(), "wt");
+ if (fp == NULL) {
+ perror(filename.c_str());
+ return -1;
+ }
+ printHeader(fp);
+
+ std::string classname = m_basename + "_" + sideString(side) + "_context_t";
+ size_t n = size();
+ fprintf(fp, "\n\n#include <string.h>\n");
+ fprintf(fp, "#include \"%s_%s_context.h\"\n\n\n", m_basename.c_str(), sideString(side));
+ fprintf(fp, "#include <stdio.h>\n\n");
+
+ fprintf(fp, "int %s::initDispatchByName(void *(*getProc)(const char *, void *userData), void *userData)\n{\n", classname.c_str());
+ for (size_t i = 0; i < n; i++) {
+ EntryPoint *e = &at(i);
+ fprintf(fp, "\t%s = (%s_%s_proc_t) getProc(\"%s\", userData);\n",
+ e->name().c_str(),
+ e->name().c_str(),
+ sideString(side),
+ e->name().c_str());
+ }
+ fprintf(fp, "\treturn 0;\n");
+ fprintf(fp, "}\n\n");
+ fclose(fp);
+ return 0;
+}
+
+int ApiGen::genDecoderImpl(const std::string &filename)
+{
+ FILE *fp = fopen(filename.c_str(), "wt");
+ if (fp == NULL) {
+ perror(filename.c_str());
+ return -1;
+ }
+
+ printHeader(fp);
+
+ std::string classname = m_basename + "_decoder_context_t";
+
+ size_t n = size();
+
+ fprintf(fp, "\n\n#include <string.h>\n");
+ fprintf(fp, "#include \"%s_opcodes.h\"\n\n", m_basename.c_str());
+ fprintf(fp, "#include \"%s_dec.h\"\n\n\n", m_basename.c_str());
+ fprintf(fp, "#include \"ProtocolUtils.h\"\n\n");
+ fprintf(fp, "#include \"ChecksumCalculatorThreadInfo.h\"\n\n");
+ fprintf(fp, "#include <stdio.h>\n\n");
+ fprintf(fp, "typedef unsigned int tsize_t; // Target \"size_t\", which is 32-bit for now. It may or may not be the same as host's size_t when emugen is compiled.\n\n");
+
+ // helper macros
+ fprintf(fp, "# define DEBUG(...) do { if (emugl_cxt_logger) { emugl_cxt_logger(LogLevel::TRACE, __VA_ARGS__); } } while(0)\n\n");
+
+ fprintf(fp,
+ "#ifdef CHECK_GLERROR\n"
+ "# define SET_LASTCALL(name) sprintf(lastCall, #name)\n"
+ "#else\n"
+ "# define SET_LASTCALL(name) ((void)0)\n"
+ "#endif\n\n");
+
+ // helper templates
+ fprintf(fp, "using namespace emugl;\n\n");
+
+ // glsl shader/program free;
+ if (strcmp(classname.c_str(), "gles2_decoder_context_t") == 0) {
+ fprintf(fp, "void %s::freeShader(){\n", classname.c_str());
+ fprintf(fp,
+ " \n\
+\tauto it = m_shaders.begin();\n\
+\tm_lock.lock();\n\
+\twhile(it != m_shaders.end()) \n\
+\t{\n\
+\t\tthis->glDeleteShader(it->first);\n\
+\t\tit++;\n\
+\t}\n\
+\tm_lock.unlock();\n\
+}\n\n");
+
+ fprintf(fp, "void %s::freeProgram(){\n", classname.c_str());
+ fprintf(fp,
+ " \n\
+\tauto it = m_programs.begin(); \n\
+\tm_lock.lock();\n\
+\twhile(it != m_programs.end()) \n\
+\t{\n\
+\t\tthis->glDeleteProgram(it->first);\n\
+\t\tit++;\n\
+\t}\n\
+\tm_lock.unlock();\n\
+}\n\n");
+ }
+
+ // decoder switch;
+ fprintf(fp, "size_t %s::decode(void *buf, size_t len, IOStream *stream)\n{\n", classname.c_str());
+ fprintf(fp,
+ " \n\
+\tsize_t pos = 0;\n\
+\tif (len < 8) return pos; \n\
+\tunsigned char *ptr = (unsigned char *)buf;\n\
+\tbool unknownOpcode = false; \n\
+#ifdef CHECK_GL_ERROR \n\
+\tchar lastCall[256] = {0}; \n\
+#endif \n\
+\twhile ((len - pos >= 8) && !unknownOpcode) { \n\
+\t\tuint32_t opcode = *(uint32_t *)ptr; \n\
+\t\tsize_t packetLen = *(uint32_t *)(ptr + 4);\n\
+\t\tif (len - pos < packetLen) return pos; \n\
+\t\tbool useChecksum = ChecksumCalculatorThreadInfo::getVersion() > 0;\n\
+\t\tsize_t checksumSize = 0;\n\
+\t\tif (useChecksum) {\n\
+\t\t\tchecksumSize = ChecksumCalculatorThreadInfo::checksumByteSize();\n\
+\t\t}\n\
+\t\tswitch(opcode) {\n");
+
+ for (size_t f = 0; f < n; f++) {
+ enum Pass_t {
+ PASS_FIRST = 0,
+ PASS_VariableDeclarations = PASS_FIRST,
+ PASS_Protocol,
+ PASS_TmpBuffAlloc,
+ PASS_MemAlloc,
+ PASS_DebugPrint,
+ PASS_FunctionCall,
+ PASS_FlushOutput,
+ PASS_Epilog,
+ PASS_LAST };
+ EntryPoint *e = &at(f);
+
+ // construct a printout string;
+ std::string printString = "";
+ for (size_t i = 0; i < e->vars().size(); i++) {
+ Var *v = &e->vars()[i];
+ if (!v->isVoid()) printString += (v->isPointer() ? "%p(%u)" : v->type()->printFormat()) + " ";
+ }
+ printString += "";
+ // TODO - add for return value;
+
+ fprintf(fp, "\t\tcase OP_%s: {\n", e->name().c_str());
+
+ bool totalTmpBuffExist = false;
+ std::string totalTmpBuffOffset = "0";
+ std::string *tmpBufOffset = new std::string[e->vars().size()];
+
+ // construct retval type string
+ std::string retvalType;
+ if (!e->retval().isVoid()) {
+ retvalType = e->retval().type()->name();
+ }
+
+ for (int pass = PASS_FIRST; pass < PASS_LAST; pass++) {
+ if (pass == PASS_FunctionCall &&
+ !e->retval().isVoid() &&
+ !e->retval().isPointer()) {
+ fprintf(fp, "\t\t\t*(%s *)(&tmpBuf[%s]) = ", retvalType.c_str(),
+ totalTmpBuffOffset.c_str());
+ }
+
+
+ if (pass == PASS_FunctionCall) {
+ fprintf(fp, "\t\t\tthis->%s(", e->name().c_str());
+ if (e->customDecoder()) {
+ fprintf(fp, "this"); // add a context to the call
+ }
+ } else if (pass == PASS_DebugPrint) {
+ fprintf(fp,
+ "\t\t\tDEBUG(\"%s(%%p): %s(%s)\", stream",
+ m_basename.c_str(),
+ e->name().c_str(),
+ printString.c_str());
+ if (e->vars().size() > 0 && !e->vars()[0].isVoid()) {
+ fprintf(fp, ",");
+ }
+ }
+
+ std::string varoffset = "8"; // skip the header
+ VarsArray & evars = e->vars();
+ // allocate memory for out pointers;
+ for (size_t j = 0; j < evars.size(); j++) {
+ Var *v = & evars[j];
+ if (v->isVoid()) {
+ continue;
+ }
+ const char* var_name = v->name().c_str();
+ const char* var_type_name = v->type()->name().c_str();
+ const unsigned var_type_bytes = v->type()->bytes();
+
+ if ((pass == PASS_FunctionCall) &&
+ (j != 0 || e->customDecoder())) {
+ fprintf(fp, ", ");
+ }
+ if (pass == PASS_DebugPrint && j != 0) {
+ fprintf(fp, ", ");
+ }
+
+ if (!v->isPointer()) {
+ if (pass == PASS_VariableDeclarations) {
+ fprintf(fp,
+ "\t\t\t%s var_%s = Unpack<%s,uint%u_t>(ptr + %s);\n",
+ var_type_name,
+ var_name,
+ var_type_name,
+ var_type_bytes * 8U,
+ varoffset.c_str());
+ }
+
+ if (pass == PASS_FunctionCall ||
+ pass == PASS_DebugPrint) {
+ fprintf(fp, "var_%s", var_name);
+ }
+ varoffset += " + " + toString(var_type_bytes);
+ continue;
+ }
+
+ if (pass == PASS_VariableDeclarations) {
+ fprintf(fp,
+ "\t\t\tuint32_t size_%s __attribute__((unused)) = Unpack<uint32_t,uint32_t>(ptr + %s);\n",
+ var_name,
+ varoffset.c_str());
+ }
+
+ if (v->pointerDir() == Var::POINTER_IN ||
+ v->pointerDir() == Var::POINTER_INOUT) {
+ if (pass == PASS_VariableDeclarations) {
+#if USE_ALIGNED_BUFFERS
+ fprintf(fp,
+ "\t\t\tInputBuffer inptr_%s(ptr + %s + 4, size_%s);\n",
+ var_name,
+ varoffset.c_str(),
+ var_name);
+ }
+ if (pass == PASS_FunctionCall) {
+ if (v->nullAllowed()) {
+ fprintf(fp,
+ "size_%s == 0 ? NULL : (%s)(inptr_%s.get())",
+ var_name,
+ var_type_name,
+ var_name);
+ } else {
+ fprintf(fp,
+ "(%s)(inptr_%s.get())",
+ var_type_name,
+ var_name);
+ }
+ } else if (pass == PASS_DebugPrint) {
+ fprintf(fp,
+ "(%s)(inptr_%s.get()), size_%s",
+ var_type_name,
+ var_name,
+ var_name);
+ }
+#else // !USE_ALIGNED_BUFFERS
+ fprintf(fp,
+ "unsigned char *inptr_%s = (ptr + %s + 4);\n",
+ var_name,
+ varoffset.c_str());
+ }
+ if (pass == PASS_FunctionCall) {
+ if (v->nullAllowed()) {
+ fprintf(fp,
+ "size_%s == 0 ? NULL : (%s)(inptr_%s)",
+ var_name,
+ var_type_name,
+ var_name);
+ } else {
+ fprintf(fp,
+ "(%s)(inptr_%s)",
+ var_type_name,
+ var_name);
+ }
+ } else if (pass == PASS_DebugPrint) {
+ fprintf(fp,
+ "(%s)(inptr_%s), size_%s",
+ var_type_name,
+ var_name,
+ var_name);
+ }
+#endif // !USE_ALIGNED_BUFFERS
+ varoffset += " + 4 + size_";
+ varoffset += var_name;
+ } else { // out pointer;
+ if (pass == PASS_TmpBuffAlloc) {
+ if (!totalTmpBuffExist) {
+ fprintf(fp,
+ "\t\t\tsize_t totalTmpSize = size_%s;\n",
+ var_name);
+ } else {
+ fprintf(fp,
+ "\t\t\ttotalTmpSize += size_%s;\n",
+ var_name);
+ }
+ tmpBufOffset[j] = totalTmpBuffOffset;
+ totalTmpBuffOffset += " + size_";
+ totalTmpBuffOffset += var_name;
+ totalTmpBuffExist = true;
+ } else if (pass == PASS_MemAlloc) {
+#if USE_ALIGNED_BUFFERS
+ fprintf(fp,
+ "\t\t\tOutputBuffer outptr_%s(&tmpBuf[%s], size_%s);\n",
+ var_name,
+ tmpBufOffset[j].c_str(),
+ var_name);
+ } else if (pass == PASS_FunctionCall) {
+ if (v->nullAllowed()) {
+ fprintf(fp,
+ "size_%s == 0 ? NULL : (%s)(outptr_%s.get())",
+ var_name,
+ var_type_name,
+ var_name);
+ } else {
+ fprintf(fp,
+ "(%s)(outptr_%s.get())",
+ var_type_name,
+ var_name);
+ }
+ } else if (pass == PASS_DebugPrint) {
+ fprintf(fp,
+ "(%s)(outptr_%s.get()), size_%s",
+ var_type_name,
+ var_name,
+ var_name);
+ }
+ if (pass == PASS_FlushOutput) {
+ fprintf(fp,
+ "\t\t\toutptr_%s.flush();\n",
+ var_name);
+ }
+#else // !USE_ALIGNED_BUFFERS
+ fprintf(fp,
+ "\t\t\tunsigned char *outptr_%s = &tmpBuf[%s];\n",
+ var_name,
+ tmpBufOffset[j].c_str());
+ fprintf(fp,
+ "\t\t\tmemset(outptr_%s, 0, %s);\n",
+ var_name,
+ toString(v->type()->bytes()).c_str());
+ } else if (pass == PASS_FunctionCall) {
+ if (v->nullAllowed()) {
+ fprintf(fp,
+ "size_%s == 0 ? NULL : (%s)(outptr_%s)",
+ var_name,
+ var_type_name,
+ var_name);
+ } else {
+ fprintf(fp,
+ "(%s)(outptr_%s)",
+ var_type_name,
+ var_name);
+ }
+ } else if (pass == PASS_DebugPrint) {
+ fprintf(fp,
+ "(%s)(outptr_%s), size_%s",
+ var_type_name,
+ var_name,
+ varoffset.c_str());
+ }
+#endif // !USE_ALIGNED_BUFFERS
+ varoffset += " + 4";
+ }
+ }
+
+ if (pass == PASS_Protocol) {
+ fprintf(fp,
+ "\t\t\tif (useChecksum) {\n"
+ "\t\t\t\tChecksumCalculatorThreadInfo::validOrDie(ptr, %s, "
+ "ptr + %s, checksumSize, "
+ "\n\t\t\t\t\t\"%s::decode,"
+ " OP_%s: GL checksumCalculator failure\\n\");\n"
+ "\t\t\t}\n",
+ varoffset.c_str(),
+ varoffset.c_str(),
+ varoffset.c_str(),
+ classname.c_str()
+ );
+
+ varoffset += " + 4";
+ }
+
+ if (pass == PASS_FunctionCall ||
+ pass == PASS_DebugPrint) {
+ fprintf(fp, ");\n");
+ }
+
+ if (pass == PASS_TmpBuffAlloc) {
+ if (!e->retval().isVoid() && !e->retval().isPointer()) {
+ if (!totalTmpBuffExist)
+ fprintf(fp,
+ "\t\t\tsize_t totalTmpSize = sizeof(%s);\n",
+ retvalType.c_str());
+ else
+ fprintf(fp,
+ "\t\t\ttotalTmpSize += sizeof(%s);\n",
+ retvalType.c_str());
+
+ totalTmpBuffExist = true;
+ }
+ if (totalTmpBuffExist) {
+ fprintf(fp,
+ "\t\t\ttotalTmpSize += checksumSize;\n"
+ "\t\t\tunsigned char *tmpBuf = stream->alloc(totalTmpSize);\n");
+ }
+ }
+
+ if (pass == PASS_Epilog) {
+ // send back out pointers data as well as retval
+ if (totalTmpBuffExist) {
+ fprintf(fp,
+ "\t\t\tif (useChecksum) {\n"
+ "\t\t\t\tChecksumCalculatorThreadInfo::writeChecksum("
+ "&tmpBuf[0], totalTmpSize - checksumSize, "
+ "&tmpBuf[totalTmpSize - checksumSize], checksumSize);\n"
+ "\t\t\t}\n"
+ "\t\t\tstream->flush();\n");
+ }
+ }
+
+ } // pass;
+ fprintf(fp, "\t\t\tSET_LASTCALL(\"%s\");\n", e->name().c_str());
+ if (strcmp(m_basename.c_str(), "gles2") == 0) {
+ if (strcmp(e->name().c_str(), "glAttachShader") == 0){
+ fprintf(fp, "\n\
+ \t\t\tm_lock.lock();\n\
+ m_shaders.insert({var_shader, 1});\n\
+ m_lock.unlock();\n");
+ } else if(strcmp(e->name().c_str(), "glDeleteProgram") == 0){
+ fprintf(fp,
+ "\t\t\tm_lock.lock(); \n"
+ "\t\t\tauto pro = m_programs.find(var_program); \n"
+ "\t\t\tif (pro != m_programs.end()) \n"
+ "\t\t\t{ \n"
+ "\t\t\t\tm_programs.erase(pro); \n"
+ "\t\t\t}\n"
+ "\t\t\tm_lock.unlock();\n");
+ } else if(strcmp(e->name().c_str(), "glDeleteShader") == 0){
+ fprintf(fp,
+ "\t\t\tm_lock.lock(); \n\
+ \t\t\tauto shader = m_shaders.find(var_shader); \n\
+ \t\t\tif (shader != m_shaders.end()) \n\
+ \t\t\t{ \n\
+ \t\t\t\tm_shaders.erase(shader); \n\
+ \t\t\t} \n\
+ \t\t\tm_lock.unlock(); \n");
+ } else if(strcmp(e->name().c_str(), "glLinkProgram") == 0){
+ fprintf(fp, " \n\
+ \t\t\tm_lock.lock();\n\
+ \t\t\tm_programs.insert({var_program, 1});\n\
+ \t\t\tm_lock.unlock();\n");
+ }
+ }
+ fprintf(fp, "\t\t\tbreak;\n");
+ fprintf(fp, "\t\t}\n");
+
+ delete [] tmpBufOffset;
+ }
+ fprintf(fp, "\t\t\tdefault:\n");
+ fprintf(fp, "\t\t\t\tunknownOpcode = true;\n");
+ fprintf(fp, "\t\t} //switch\n");
+ if (strstr(m_basename.c_str(), "gl")) {
+ fprintf(fp, "#ifdef CHECK_GL_ERROR\n");
+ fprintf(fp, "\tint err = lastCall[0] ? this->glGetError() : GL_NO_ERROR;\n");
+ fprintf(fp, "\tif (err) fprintf(stderr, \"%s Error: 0x%%X in %%s\\n\", err, lastCall);\n", m_basename.c_str());
+ fprintf(fp, "#endif\n");
+ }
+
+ fprintf(fp, "\t\tif (!unknownOpcode) {\n");
+ fprintf(fp, "\t\t\tpos += packetLen;\n");
+ fprintf(fp, "\t\t\tptr += packetLen;\n");
+ fprintf(fp, "\t\t}\n");
+ fprintf(fp, "\t} // while\n");
+ fprintf(fp, "\treturn pos;\n");
+ fprintf(fp, "}\n");
+
+ fclose(fp);
+ return 0;
+}
+
+int ApiGen::readSpec(const std::string & filename)
+{
+ FILE *specfp = fopen(filename.c_str(), "rt");
+ if (specfp == NULL) {
+ return -1;
+ }
+
+ char line[1000];
+ unsigned int lc = 0;
+ while (fgets(line, sizeof(line), specfp) != NULL) {
+ lc++;
+ EntryPoint ref;
+ if (ref.parse(lc, std::string(line))) {
+ push_back(ref);
+ updateMaxEntryPointsParams(ref.vars().size());
+ }
+ }
+ fclose(specfp);
+ return 0;
+}
+
+int ApiGen::readAttributes(const std::string & attribFilename)
+{
+ enum { ST_NAME, ST_ATT } state;
+
+ FILE *fp = fopen(attribFilename.c_str(), "rt");
+ if (fp == NULL) {
+ perror(attribFilename.c_str());
+ return -1;
+ }
+ char buf[1000];
+
+ state = ST_NAME;
+ EntryPoint *currentEntry = NULL;
+ size_t lc = 0;
+ bool globalAttributes = false;
+ while (fgets(buf, sizeof(buf), fp) != NULL) {
+ lc++;
+ std::string line(buf);
+ if (line.size() == 0) continue; // could that happen?
+
+ if (line.at(0) == '#') continue; // comment
+
+ size_t first = line.find_first_not_of(" \t\n");
+ if (state == ST_ATT && (first == std::string::npos || first == 0)) state = ST_NAME;
+
+ line = trim(line);
+ if (line.size() == 0 || line.at(0) == '#') continue;
+
+ switch(state) {
+ case ST_NAME:
+ if (line == "GLOBAL") {
+ globalAttributes = true;
+ } else {
+ globalAttributes = false;
+ currentEntry = findEntryByName(line);
+ if (currentEntry == NULL) {
+ fprintf(stderr, "WARNING: %u: attribute of non existant entry point %s\n", (unsigned int)lc, line.c_str());
+ }
+ }
+ state = ST_ATT;
+ break;
+ case ST_ATT:
+ if (globalAttributes) {
+ setGlobalAttribute(line, lc);
+ } else if (currentEntry != NULL) {
+ currentEntry->setAttribute(line, lc);
+ }
+ break;
+ }
+ }
+ return 0;
+}
+
+
+int ApiGen::setGlobalAttribute(const std::string & line, size_t lc)
+{
+ size_t pos = 0;
+ size_t last;
+ std::string token = getNextToken(line, pos, &last, WHITESPACE);
+ pos = last;
+
+ if (token == "base_opcode") {
+ std::string str = getNextToken(line, pos, &last, WHITESPACE);
+ if (str.size() == 0) {
+ fprintf(stderr, "line %u: missing value for base_opcode\n", (unsigned) lc);
+ } else {
+ setBaseOpcode(atoi(str.c_str()));
+ }
+ } else if (token == "encoder_headers") {
+ std::string str = getNextToken(line, pos, &last, WHITESPACE);
+ pos = last;
+ while (str.size() != 0) {
+ encoderHeaders().push_back(str);
+ str = getNextToken(line, pos, &last, WHITESPACE);
+ pos = last;
+ }
+ } else if (token == "client_context_headers") {
+ std::string str = getNextToken(line, pos, &last, WHITESPACE);
+ pos = last;
+ while (str.size() != 0) {
+ clientContextHeaders().push_back(str);
+ str = getNextToken(line, pos, &last, WHITESPACE);
+ pos = last;
+ }
+ } else if (token == "server_context_headers") {
+ std::string str = getNextToken(line, pos, &last, WHITESPACE);
+ pos = last;
+ while (str.size() != 0) {
+ serverContextHeaders().push_back(str);
+ str = getNextToken(line, pos, &last, WHITESPACE);
+ pos = last;
+ }
+ } else if (token == "decoder_headers") {
+ std::string str = getNextToken(line, pos, &last, WHITESPACE);
+ pos = last;
+ while (str.size() != 0) {
+ decoderHeaders().push_back(str);
+ str = getNextToken(line, pos, &last, WHITESPACE);
+ pos = last;
+ }
+ }
+ else {
+ fprintf(stderr, "WARNING: %u : unknown global attribute %s\n", (unsigned int)lc, line.c_str());
+ }
+
+ return 0;
+}
Code Review / iec.git / blobdiff