void Board::place(const std::size_t colIndex, const std::size_t rowIndex, const Piece &v) {
if (colIndex < 0 || rowIndex < 0 || colIndex > 7 || rowIndex > 7)
throw runtime_error_ex("index out of bounds: col=%d row=%d",colIndex,rowIndex);
else if (v == Piece::OUT_OF_BOUNDS)
throw runtime_error_ex("cannot set square to out of bounds: col=%d row=%d",colIndex,rowIndex);
_data[rowIndex * 8 + colIndex] = v;
}
void Texture::copy_from_2d(const SDL_Surface& surface) {
GLenum texture_format;
auto bpp = surface.format->BytesPerPixel;
if (bpp == 4) {
// contains an alpha channel
if (surface.format->Rmask == 0x000000ff)
texture_format = GL_RGBA;
else
texture_format = GL_BGRA;
} else if (bpp == 3) {
// no alpha channel
if (surface.format->Rmask == 0x000000ff)
texture_format = GL_RGB;
else
texture_format = GL_BGR;
} else
throw runtime_error_ex("surface has invalid bytes per pixel: %d",bpp);
activate();
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
glTexImage2D(GL_TEXTURE_2D, 0, bpp, surface.w, surface.h, 0,
texture_format, GL_UNSIGNED_BYTE, surface.pixels);
_context->check_error();
}
void Texture::copy_from(const SDL_Surface& surface) {
if ((surface.w & (surface.w - 1)) != 0)
throw runtime_error_ex("surface width is not a power of 2 it is %d", surface.w);
if ((surface.h & (surface.h - 1)) != 0)
throw std::runtime_error("surface height is not a power of 2");
copy_from_2d(surface);
}
GLuint ShaderProgram::attribute_location(const GLchar * name) {
CHECK_CONTEXT;
const auto result = _context->glGetAttribLocation(_program, name);
_context->check_error();
if (result == -1)
throw runtime_error_ex("could not find name '%s'" , name);
return result;
}
arti::Piece annotate(const Board::const_iterator& it) {
if (*it == Piece::EMPTY) return *it;
else {
arti::Region n;
n.insert_neighbours(it.pos());
int r = it.board()->count(n,*it);
if (*it == *south_annotations) return Piece(south_annotations[r]);
else if(*it == *north_annotations) return Piece(north_annotations[r]);
else if(*it == *open_annotations) return Piece(open_annotations[r]);
else throw runtime_error_ex("Invalid char %d",*it);
}
};
string string_from_file(const char * fileName) {
ifstream file;
file.open(fileName);
if (!file)
throw file_not_found(fileName);
// determine file size
file.seekg(0,ios::end);
auto length = file.tellg();
if (length == 0)
throw runtime_error_ex("The file ('%s') is empty", fileName);
// read the whole file the result
file.seekg(0,ios::beg);
const size_t bufSize = (unsigned int) length + 1;
string result;
result.reserve(bufSize);
char c;
file.get(c);
do {
result += c;
file.get(c);
} while (file.good());
return result;
}
void create_dir(const string& path) {
if (mkdir(path.c_str()) != 0) {
if (errno != EEXIST)
throw runtime_error_ex("could not create directory:'%s'",path.c_str());
}
}
