aboutsummaryrefslogtreecommitdiff
path: root/demo/DemoAppCodeGen/loaderCodeGen.h
diff options
context:
space:
mode:
Diffstat (limited to 'demo/DemoAppCodeGen/loaderCodeGen.h')
-rw-r--r--demo/DemoAppCodeGen/loaderCodeGen.h335
1 files changed, 335 insertions, 0 deletions
diff --git a/demo/DemoAppCodeGen/loaderCodeGen.h b/demo/DemoAppCodeGen/loaderCodeGen.h
new file mode 100644
index 0000000..b92beb1
--- /dev/null
+++ b/demo/DemoAppCodeGen/loaderCodeGen.h
@@ -0,0 +1,335 @@
+/*
+* Copyright (c) 2014-2017, NVIDIA CORPORATION. All rights reserved.
+*
+* NVIDIA CORPORATION and its licensors retain all intellectual property
+* and proprietary rights in and to this software, related documentation
+* and any modifications thereto. Any use, reproduction, disclosure or
+* distribution of this software and related documentation without an express
+* license agreement from NVIDIA CORPORATION is strictly prohibited.
+*/
+
+#pragma once
+
+enum LoaderType
+{
+ eLoaderTypeDynamicLink = 0,
+ eLoaderTypeStaticLink = 1
+};
+
+const unsigned int maxFunctionParams = 8u;
+
+struct FunctionParams
+{
+ const char* typeName;
+ const char* instName;
+};
+
+struct Function
+{
+ const char* retType;
+ const char* method;
+ unsigned int numParams;
+ FunctionParams params[maxFunctionParams];
+};
+
+struct GenerateCodeParams
+{
+ LoaderType loaderType;
+ FILE* file;
+ Function* functions;
+ unsigned int numFunctions;
+
+ const char* filenameTmp;
+ const char* filenameDst;
+ const char* moduleNameUpperCase;
+ const char* moduleNameLowerCase;
+ const char* instName;
+ const char* apiMarker;
+};
+
+void typedef_function_ptrs(const GenerateCodeParams* params)
+{
+ for (unsigned int functionIdx = 0u; functionIdx < params->numFunctions; functionIdx++)
+ {
+ auto& function = params->functions[functionIdx];
+
+ fprintf(params->file, "typedef %s (*%s_ptr_t)(", function.retType, function.method);
+
+ for (unsigned int paramIdx = 0u; paramIdx < function.numParams; paramIdx++)
+ {
+ fprintf(params->file, "%s %s", function.params[paramIdx].typeName, function.params[paramIdx].instName);
+
+ if (paramIdx < function.numParams - 1) fprintf(params->file, ", ");
+ }
+
+ fprintf(params->file, ");\n");
+ }
+
+ fprintf(params->file, "\n");
+}
+
+void declare_function_ptrs(const GenerateCodeParams* params)
+{
+ for (unsigned int functionIdx = 0u; functionIdx < params->numFunctions; functionIdx++)
+ {
+ auto& function = params->functions[functionIdx];
+
+ fprintf(params->file, "\t%s_ptr_t %s_ptr;\n", function.method, function.method);
+ }
+}
+
+void implement_pointer_wrappers(const GenerateCodeParams* params)
+{
+ for (unsigned int functionIdx = 0u; functionIdx < params->numFunctions; functionIdx++)
+ {
+ auto& function = params->functions[functionIdx];
+
+ fprintf(params->file, "%s %s(", function.retType, function.method);
+
+ for (unsigned int paramIdx = 0u; paramIdx < function.numParams; paramIdx++)
+ {
+ fprintf(params->file, "%s %s", function.params[paramIdx].typeName, function.params[paramIdx].instName);
+
+ if (paramIdx < function.numParams - 1) fprintf(params->file, ", ");
+ }
+
+ fprintf(params->file, ")\n{\n");
+
+ fprintf(params->file, "\treturn %s.%s_ptr(", params->instName, function.method);
+
+ for (unsigned int paramIdx = 0u; paramIdx < function.numParams; paramIdx++)
+ {
+ fprintf(params->file, "%s", function.params[paramIdx].instName);
+
+ if (paramIdx < function.numParams - 1) fprintf(params->file, ", ");
+ }
+
+ fprintf(params->file, ");\n");
+
+ fprintf(params->file, "}\n\n");
+ }
+}
+
+void load_function_ptrs(const GenerateCodeParams* params)
+{
+ for (unsigned int functionIdx = 0u; functionIdx < params->numFunctions; functionIdx++)
+ {
+ auto& function = params->functions[functionIdx];
+
+ fprintf(params->file, "\t%s.%s_ptr = ", params->instName, function.method);
+
+ fprintf(params->file, "(%s_ptr_t", function.method);
+
+ fprintf(params->file, ")(%sLoaderLoadFunction(&%s, \"%s\")", params->moduleNameLowerCase, params->instName, function.method);
+
+ fprintf(params->file, ");\n");
+ }
+}
+
+void load_function_ptrs_static(const GenerateCodeParams* params, const char* suffix)
+{
+ fprintf(params->file, "\tif (type == APP_CONTEXT_%s)\n\t{\n", suffix);
+
+ for (unsigned int functionIdx = 0u; functionIdx < params->numFunctions; functionIdx++)
+ {
+ auto& function = params->functions[functionIdx];
+
+ fprintf(params->file, "\t\t%s.%s_ptr = ", params->instName, function.method);
+
+ fprintf(params->file, "%s%s;\n", function.method, suffix);
+ }
+
+ fprintf(params->file, "\t}\n\n");
+}
+
+void unload_function_ptrs(const GenerateCodeParams* params)
+{
+ for (unsigned int functionIdx = 0u; functionIdx < params->numFunctions; functionIdx++)
+ {
+ auto& function = params->functions[functionIdx];
+
+ fprintf(params->file, "\t%s.%s_ptr = nullptr;\n", params->instName, function.method);
+ }
+}
+
+void declare_backend_functions(const GenerateCodeParams* params, const char* suffix)
+{
+ for (unsigned int functionIdx = 0u; functionIdx < params->numFunctions; functionIdx++)
+ {
+ auto& function = params->functions[functionIdx];
+
+ fprintf(params->file, "%s %s %s%s(", params->apiMarker, function.retType, function.method, suffix);
+
+ for (unsigned int paramIdx = 0u; paramIdx < function.numParams; paramIdx++)
+ {
+ fprintf(params->file, "%s %s", function.params[paramIdx].typeName, function.params[paramIdx].instName);
+
+ if (paramIdx < function.numParams - 1) fprintf(params->file, ", ");
+ }
+
+ fprintf(params->file, ");\n");
+ }
+
+ fprintf(params->file, "\n");
+}
+
+const char* fileHeader =
+"/*\n"
+"* Copyright (c) 2014-2017, NVIDIA CORPORATION. All rights reserved.\n"
+"*\n"
+"* NVIDIA CORPORATION and its licensors retain all intellectual property\n"
+"* and proprietary rights in and to this software, related documentation\n"
+"* and any modifications thereto. Any use, reproduction, disclosure or\n"
+"* distribution of this software and related documentation without an express\n"
+"* license agreement from NVIDIA CORPORATION is strictly prohibited.\n"
+"*/\n\n";
+
+void generateCode(const GenerateCodeParams* params)
+{
+ fprintf(params->file, fileHeader);
+
+ typedef_function_ptrs(params);
+
+ const char* loaderBegin =
+ "struct %sLoader \n"
+ "{ \n"
+ " void* module = nullptr; \n"
+ " const char* suffix = \"\"; \n"
+ " char buf[1024u]; \n\n";
+ fprintf(params->file, loaderBegin, params->moduleNameUpperCase);
+
+ declare_function_ptrs(params);
+
+ const char* loaderEnd =
+ "\n"
+ "}%s; \n\n";
+ fprintf(params->file, loaderEnd, params->instName);
+
+ implement_pointer_wrappers(params);
+
+ if (params->loaderType == eLoaderTypeDynamicLink)
+ {
+ const char* loaderFunction =
+ "void* %sLoaderLoadFunction(%sLoader* inst, const char* name)\n"
+ "{\n"
+ " snprintf(inst->buf, 1024u, \"%s%s\", name, inst->suffix);\n"
+ "\n"
+ " return SDL_LoadFunction(inst->module, inst->buf);\n"
+ "}\n\n";
+ fprintf(params->file, loaderFunction, params->moduleNameLowerCase, params->moduleNameUpperCase, "%s", "%s");
+
+ const char* loadModule =
+ "void load%s(AppGraphCtxType type)\n"
+ "{\n"
+ " const char* moduleName = demoAppDLLName(type);\n"
+ "\n"
+ " %s.suffix = demoAppBackendSuffix(type);\n"
+ "\n"
+ " %s.module = SDL_LoadObject(moduleName);\n\n";
+ fprintf(params->file, loadModule, params->moduleNameUpperCase, params->instName, params->instName);
+
+ load_function_ptrs(params);
+
+ const char* unloadModule =
+ "}\n"
+ "\n"
+ "void unload%s()\n"
+ "{\n";
+ fprintf(params->file, unloadModule, params->moduleNameUpperCase);
+
+ unload_function_ptrs(params);
+
+ const char* unloadModuleEnd =
+ "\n"
+ " SDL_UnloadObject(%s.module);\n"
+ "}\n";
+ fprintf(params->file, unloadModuleEnd, params->instName);
+ }
+ else if (params->loaderType == eLoaderTypeStaticLink)
+ {
+ const unsigned int suffixCount = 2u;
+ const char* suffix[suffixCount] = { "D3D11", "D3D12" };
+
+ for (unsigned int suffixIdx = 0u; suffixIdx < 2u; suffixIdx++)
+ {
+ declare_backend_functions(params, suffix[suffixIdx]);
+ }
+
+ const char* loadModule =
+ "void load%s(AppGraphCtxType type)\n"
+ "{\n"
+ " %s.suffix = demoAppBackendSuffix(type);\n"
+ "\n";
+ fprintf(params->file, loadModule, params->moduleNameUpperCase, params->instName);
+
+ for (unsigned int suffixIdx = 0u; suffixIdx < 2u; suffixIdx++)
+ {
+ load_function_ptrs_static(params, suffix[suffixIdx]);
+ }
+
+ const char* unloadModule =
+ "}\n"
+ "\n"
+ "void unload%s()\n"
+ "{\n";
+ fprintf(params->file, unloadModule, params->moduleNameUpperCase);
+
+ unload_function_ptrs(params);
+
+ const char* unloadModuleEnd =
+ "\n"
+ "}\n";
+ fprintf(params->file, unloadModuleEnd, params->instName);
+ }
+}
+
+void fileDiffAndWriteIfModified(const GenerateCodeParams* params)
+{
+ FILE* fileTmp = nullptr;
+ FILE* fileDst = nullptr;
+ bool match = true;
+
+ fopen_s(&fileDst, params->filenameDst, "r");
+ if (fileDst)
+ {
+ fopen_s(&fileTmp, params->filenameTmp, "r");
+ if (fileTmp)
+ {
+ while (1)
+ {
+ int a = fgetc(fileTmp);
+ int b = fgetc(fileDst);
+
+ if (a == EOF && b == EOF)
+ {
+ break;
+ }
+ else if (a != b)
+ {
+ match = false;
+ break;
+ }
+ }
+
+ fclose(fileTmp);
+ }
+ else
+ {
+ match = false;
+ }
+ fclose(fileDst);
+ }
+ else
+ {
+ match = false;
+ }
+
+ if (!match)
+ {
+ remove(params->filenameDst);
+ rename(params->filenameTmp, params->filenameDst);
+ }
+
+ // always cleanup temp file
+ remove(params->filenameTmp);
+} \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2026-03-11 02:05:16 +0000