bool FileToBuffer(MPQHANDLE &hStarDat, MPQHANDLE &hBrooDat, MPQHANDLE &hPatchRt, MPQHANDLE &hPriority, const std::string &fileName, buffer &buf)
{
return ( hPriority != nullptr && FileToBuffer(hPriority, fileName, buf) )
|| FileToBuffer(hPatchRt, fileName, buf)
|| FileToBuffer(hBrooDat, fileName, buf)
|| FileToBuffer(hStarDat, fileName, buf);
}
unsigned int ShaderLoader::LoadShader(const char* _strName, unsigned int _uiType) {
int success = GL_FALSE;
unsigned int handle = glCreateShader(_uiType);
unsigned char* source = FileToBuffer(_strName);
glShaderSource(handle, 1, (const char**)&source, 0);
glCompileShader(handle);
glGetShaderiv(handle, GL_COMPILE_STATUS, &success);
if (success == GL_FALSE) {
int infoLogLength = 0;
glGetShaderiv(handle, GL_INFO_LOG_LENGTH, &infoLogLength);
char* infoLog = new char[infoLogLength];
glGetShaderInfoLog(handle, infoLogLength, 0, infoLog);
printf("Error: Failed to compile shader!\n");
printf("%s", infoLog);
printf("\n");
delete[] infoLog;
return 0;
}
delete[] source;
return handle;
}
bool FileToBuffer(MPQHANDLE &hStarDat, MPQHANDLE &hBrooDat, MPQHANDLE &hPatchRt, const std::string &fileName, buffer &buf)
{
return FileToBuffer(hPatchRt, fileName, buf)
|| FileToBuffer(hBrooDat, fileName, buf)
|| FileToBuffer(hStarDat, fileName, buf);
}
//////////////////////////////////////////////////////////////////////////
// loads only a vertex and pixel shader from text files
unsigned int AIE::LoadShader(unsigned int a_uiInputAttributeCount, const char** a_aszInputAttributes,
unsigned int a_uiOutputAttributeCount, const char** a_aszOutputAttributes,
const char* a_szVertexShader, const char* a_szPixelShader,
const char* a_szGeometryShader /* = nullptr */,
const char* a_szTessellationControlShader /* = nullptr */, const char* a_szTessellationEvaluationShader /* = nullptr */)
{
GLint iSuccess;
GLchar acLog[256];
// load files into char buffers
char* vsSource = FileToBuffer(a_szVertexShader);
char* fsSource = FileToBuffer(a_szPixelShader);
char* gsSource = a_szGeometryShader == nullptr ? nullptr : FileToBuffer(a_szGeometryShader);
char* tcsSource = a_szTessellationControlShader == nullptr ? nullptr : FileToBuffer(a_szTessellationControlShader);
char* tesSource = a_szTessellationEvaluationShader == nullptr ? nullptr : FileToBuffer(a_szTessellationEvaluationShader);
// must have vertex and pixel
if (vsSource == nullptr || fsSource == nullptr)
{
return 0;
}
// create 2 shader handles
GLuint vsHandle = glCreateShader(GL_VERTEX_SHADER);
GLuint fsHandle = glCreateShader(GL_FRAGMENT_SHADER);
GLuint gsHandle = 0;
GLuint tcsHandle = 0;
GLuint tesHandle = 0;
// compile vertex shader and log errors
glShaderSource(vsHandle, 1, (const char**)&vsSource, 0);
glCompileShader(vsHandle);
glGetShaderiv(vsHandle, GL_COMPILE_STATUS, &iSuccess);
glGetShaderInfoLog(vsHandle, sizeof(acLog), 0, acLog);
if (iSuccess == GL_FALSE)
{
printf("Error: Failed to compile vertex shader!\n");
printf(acLog);
printf("\n");
return 0;
}
// compile pixel shader and log errors
glShaderSource(fsHandle, 1, (const char**)&fsSource, 0);
glCompileShader(fsHandle);
glGetShaderiv(fsHandle, GL_COMPILE_STATUS, &iSuccess);
glGetShaderInfoLog(fsHandle, sizeof(acLog), 0, acLog);
if (iSuccess == GL_FALSE)
{
printf("Error: Failed to compile pixel shader!\n");
printf(acLog);
printf("\n");
return 0;
}
if (gsSource != nullptr)
{
gsHandle = glCreateShader(GL_GEOMETRY_SHADER);
// compile geometry shader and log errors
glShaderSource(gsHandle, 1, (const char**)&gsSource, 0);
glCompileShader(gsHandle);
glGetShaderiv(gsHandle, GL_COMPILE_STATUS, &iSuccess);
glGetShaderInfoLog(gsHandle, sizeof(acLog), 0, acLog);
if (iSuccess == GL_FALSE)
{
printf("Error: Failed to compile geometry shader!\n");
printf(acLog);
printf("\n");
return 0;
}
}
if (tesSource != nullptr && tcsSource != nullptr)
{
tesHandle = glCreateShader(GL_TESS_EVALUATION_SHADER);
tcsHandle = glCreateShader(GL_TESS_CONTROL_SHADER);
// compile tessellation control shader and log errors
glShaderSource(tcsHandle, 1, (const char**)&tcsSource, 0);
glCompileShader(tcsHandle);
glGetShaderiv(tcsHandle, GL_COMPILE_STATUS, &iSuccess);
glGetShaderInfoLog(tcsHandle, sizeof(acLog), 0, acLog);
if (iSuccess == GL_FALSE)
{
printf("Error: Failed to compile tessellation control shader!\n");
printf(acLog);
printf("\n");
return 0;
}
// compile tessellation evaluation shader and log errors
glShaderSource(tesHandle, 1, (const char**)&tesSource, 0);
glCompileShader(tesHandle);
glGetShaderiv(tesHandle, GL_COMPILE_STATUS, &iSuccess);
glGetShaderInfoLog(tesHandle, sizeof(acLog), 0, acLog);
if (iSuccess == GL_FALSE)
{
printf("Error: Failed to compile tessellation evaluation shader!\n");
printf(acLog);
printf("\n");
return 0;
}
}
// create a shader program and attach the shaders to it
GLuint uiProgramHandle = glCreateProgram();
glAttachShader(uiProgramHandle, vsHandle);
glAttachShader(uiProgramHandle, fsHandle);
if (gsHandle != 0)
glAttachShader(uiProgramHandle, gsHandle);
if (tcsHandle != 0)
glAttachShader(uiProgramHandle, tcsHandle);
if (tesHandle != 0)
glAttachShader(uiProgramHandle, tesHandle);
// specify vertex input attributes
for ( unsigned int i = 0 ; i < a_uiInputAttributeCount ; ++i )
glBindAttribLocation(uiProgramHandle, i, a_aszInputAttributes[i]);
// specify pixel shader outputs
for ( unsigned int i = 0 ; i < a_uiOutputAttributeCount ; ++i )
glBindFragDataLocation(uiProgramHandle, i, a_aszOutputAttributes[i]);
// link the program together and log errors
glLinkProgram(uiProgramHandle);
glGetProgramiv(uiProgramHandle, GL_LINK_STATUS, &iSuccess);
glGetProgramInfoLog(uiProgramHandle, sizeof(acLog), 0, acLog);
if (iSuccess == GL_FALSE)
{
printf("Error: Failed to link shader program!\n");
printf(acLog);
printf("\n");
return 0;
}
glUseProgram(uiProgramHandle);
delete vsSource;
delete fsSource;
if (gsSource != nullptr)
delete gsSource;
if (tcsSource != nullptr)
delete tcsSource;
if (tesSource != nullptr)
delete tesSource;
return uiProgramHandle;
}
bool MapFile::OpenFile()
{
if ( filePath != nullptr )
{
buffer chk("oMAP");
char* ext = strrchr(filePath, '.'); // Find the last occurrence of '.'
if ( ext != nullptr )
{
if ( strcmp(ext, ".scm") == 0 || strcmp(ext, ".scx") == 0 )
{
HANDLE hMpq = MpqOpenArchiveForUpdate(filePath, MOAU_OPEN_EXISTING, 1000);
if ( hMpq != NULL && hMpq != INVALID_HANDLE_VALUE )
{
FileToBuffer(hMpq, "staredit\\scenario.chk", chk);
MpqCloseUpdatedArchive(hMpq, 0);
if ( chk.size() > 0 && ParseScenario(chk) )
{
if ( VER().exists() )
{
if ( VER().get<u16>(0) < 63 )
SaveType = 1; // Vanilla
else if ( VER().get<u16>(0) < 205 )
SaveType = 2; // Hybrid
else
SaveType = 3; // Expansion
}
else if ( strcmp(ext, ".scx") == 0 )
SaveType = 3; // Expansion
else if ( true ) // Could search for clues to map version here
SaveType = 6; // Otherwise set to expansion to prevent data loss
return true;
}
}
else if ( GetLastError() == ERROR_FILE_NOT_FOUND )
CHKD_ERR("File Not Found");
else if ( GetLastError() == MPQ_ERROR_MPQ_INVALID )
CHKD_ERR("Invalid or corrupt MPQ file");
else
CHKD_ERR("%d", GetLastError());
}
else if ( strcmp(ext, ".chk") == 0 )
{
if ( FileToBuffer(filePath, chk) )
{
if ( ParseScenario(chk) )
{
if ( VER().exists() )
{
if ( VER().get<u16>(0) < 63 )
SaveType = 4; // Vanilla chk
else if ( VER().get<u16>(0) < 205 )
SaveType = 5; // Hybrid chk
else
SaveType = 6; // Expansion chk
}
else if ( true ) // Could search for clues to map version here
SaveType = 6; // Otherwise set to expansion to prevent data loss
return true;
}
else
CHKD_ERR("Parsing Failed!");
}
else
CHKD_ERR("Error Reading CHK File");
}
}
}
return false;
}