Gds Parser: Add support for array refrences (AREFs)
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@ -79,7 +79,26 @@ enum gds_record {
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BOX = 0x2D00,
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LAYER = 0x0D02,
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WIDTH = 0x0F03,
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PATHTYPE = 0x2102
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PATHTYPE = 0x2102,
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COLROW = 0x1302,
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AREF = 0x0B00
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};
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/**
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* @brief Struct representing an array instantiation.
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*
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* This struct is defined locally because it is not exposed to the outside of the
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* parser. Array references are internally converted to a bunch of standard @ref gds_cell_instance elements.
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*/
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struct gds_cell_array_instance {
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char ref_name[CELL_NAME_MAX]; /**< @brief Name of referenced cell */
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struct gds_cell *cell_ref; /**< @brief Referenced gds_cell structure */
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struct gds_point control_points[3]; /**< @brief The three control points */
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int flipped; /**< @brief Mirror each instance on x-axis before rotation */
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double angle; /**< @brief Angle of rotation for each instance (counter clockwise) in degrees */
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double magnification; /**< @brief Magnification of each instance */
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int columns; /**< @brief Column count */
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int rows; /**< @brief Row count */
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};
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/**
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@ -112,6 +131,36 @@ static int name_cell_ref(struct gds_cell_instance *cell_inst,
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return 0;
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}
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/**
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* @brief Name cell reference
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* @param cell_inst Cell reference
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* @param bytes Length of name
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* @param data Name
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* @return 0 if successful
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*/
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static int name_array_cell_ref(struct gds_cell_array_instance *cell_inst,
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unsigned int bytes, char *data)
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{
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int len;
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if (cell_inst == NULL) {
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GDS_ERROR("Naming array cell ref with no opened cell ref");
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return -1;
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}
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data[bytes] = 0; // Append '0'
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len = (int)strlen(data);
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if (len > CELL_NAME_MAX-1) {
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GDS_ERROR("Cell name '%s' too long: %d\n", data, len);
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return -1;
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}
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/* else: */
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strcpy(cell_inst->ref_name, data);
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GDS_INF("\tCell referenced: %s\n", cell_inst->ref_name);
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return 0;
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}
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/**
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* @brief Convert GDS 8-byte real to double
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* @param data 8 Byte GDS real
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@ -509,6 +558,62 @@ static void gds_parse_date(const char *buffer, int length, struct gds_time_field
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}
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}
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/**
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* @brief Convert AREF to a bunch of SREFs and append them to \p container_cell
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*
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* This function converts a single array reference (\p aref) to gds_cell_array_instance::rows * gds_cell_array_instance::columns
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* single references (SREFs). See @ref gds_cell_instance.
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*
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* Both gds_cell_array_instance::rows and gds_cell_array_instance::columns must be larger than zero.
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*
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* @param[in] aref Array reference to parse
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* @param[in] container_cell cell to add the converted single references to.
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*/
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static void convert_aref_to_sref(struct gds_cell_array_instance *aref, struct gds_cell *container_cell)
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{
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struct gds_point origin;
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struct gds_point row_shift_vector;
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struct gds_point col_shift_vector;
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struct gds_cell_instance *sref_inst;
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int col;
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int row;
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if (!aref || !container_cell)
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return;
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if (aref->columns == 0 || aref->rows == 0) {
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GDS_ERROR("Conversion of array instance aborted. No rows / columns.");
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return;
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}
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origin.x = aref->control_points[0].x;
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origin.y = aref->control_points[0].y;
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row_shift_vector.x = (aref->control_points[2].x - origin.x) / aref->rows;
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row_shift_vector.y = (aref->control_points[2].y - origin.y) / aref->rows;
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col_shift_vector.x = (aref->control_points[1].x - origin.x) / aref->columns;
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col_shift_vector.y = (aref->control_points[1].y - origin.y) / aref->columns;
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/* Iterate over columns and rows */
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for (col = 0; col < aref->columns; col++) {
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for (row = 0; row < aref->rows; row++) {
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/* Create new instance for this row/column and aconfigure data */
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container_cell->child_cells = append_cell_ref(container_cell->child_cells, &sref_inst);
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if (!sref_inst) {
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GDS_ERROR("Appending cell ref failed!");
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continue;
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}
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sref_inst->angle = aref->angle;
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sref_inst->magnification = aref->magnification;
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sref_inst->flipped = aref->flipped;
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strncpy(sref_inst->ref_name, aref->ref_name, CELL_NAME_MAX);
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sref_inst->origin.x = origin.x + row_shift_vector.x * row + col_shift_vector.x * col;
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sref_inst->origin.y = origin.y + row_shift_vector.y * row + col_shift_vector.y * col;
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}
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}
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GDS_INF("Converted AREF to SREFs\n");
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}
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int parse_gds_from_file(const char *filename, GList **library_list)
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{
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char *workbuff;
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@ -522,6 +627,8 @@ int parse_gds_from_file(const char *filename, GList **library_list)
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struct gds_cell *current_cell = NULL;
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struct gds_graphics *current_graphics = NULL;
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struct gds_cell_instance *current_s_reference = NULL;
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struct gds_cell_array_instance *current_a_reference = NULL;
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struct gds_cell_array_instance temp_a_reference;
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int x, y;
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////////////
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GList *lib_list;
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@ -701,6 +808,12 @@ int parse_gds_from_file(const char *filename, GList **library_list)
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GDS_INF("\tLeaving Reference\n");
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current_s_reference = NULL;
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}
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if (current_a_reference != NULL) {
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GDS_INF("\tLeaving Array Reference\n");
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convert_aref_to_sref(current_a_reference, current_cell);
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current_a_reference = NULL;
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}
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break;
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case XY:
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if (current_graphics) {
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@ -709,24 +822,51 @@ int parse_gds_from_file(const char *filename, GList **library_list)
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if (rec_data_length != 8) {
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GDS_WARN("Instance has weird coordinates. Rendered output might be screwed!");
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}
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} else if (current_a_reference) {
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if (rec_data_length != (3*(4+4)))
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GDS_WARN("Array instance has weird coordinates. Rendered output might be screwed!");
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}
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break;
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case AREF:
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if (current_cell == NULL) {
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GDS_ERROR("Cell array reference outside of cell");
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run = -3;
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break;
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}
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break;
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if (current_a_reference != NULL) {
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GDS_ERROR("Recursive cell array reference");
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run = -3;
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break;
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}
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GDS_INF("Entering Array Reference\n");
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/* Array references are coverted after fully declared. Therefore,
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* only a static buffer is needed
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*/
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current_a_reference = &temp_a_reference;
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current_a_reference->ref_name[0] = '\0';
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current_a_reference->angle = 0.0;
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current_a_reference->magnification = 1.0;
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current_a_reference->flipped = 0;
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current_a_reference->rows = 0;
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current_a_reference->columns = 0;
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break;
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case COLROW:
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case MAG:
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break;
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case ANGLE:
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break;
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case STRANS:
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break;
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case WIDTH:
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break;
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case PATHTYPE:
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break;
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case UNITS:
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case LIBNAME:
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case SNAME:
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case LAYER:
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case STRNAME:
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break;
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default:
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//GDS_WARN("Record: %04x, len: %u", (unsigned int)rec_type, (unsigned int)rec_data_length);
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GDS_WARN("Unhandled Record: %04x, len: %u", (unsigned int)rec_type, (unsigned int)rec_data_length);
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break;
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} /* switch(rec_type) */
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@ -744,7 +884,7 @@ int parse_gds_from_file(const char *filename, GList **library_list)
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}
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switch (rec_type) {
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case AREF:
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case HEADER:
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case ENDLIB:
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case ENDSTR:
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@ -756,6 +896,20 @@ int parse_gds_from_file(const char *filename, GList **library_list)
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case INVALID:
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break;
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case COLROW:
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if (!current_a_reference) {
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GDS_ERROR("COLROW record defined outside of array instance");
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break;
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}
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if (rec_data_length != 4 || read != 4) {
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GDS_ERROR("COLUMN/ROW count record contains too few data. Won't set column and row counts (%d, %d)",
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rec_data_length, read);
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break;
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}
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current_a_reference->columns = (int)gds_convert_signed_int16(&workbuff[0]);
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current_a_reference->rows = (int)gds_convert_signed_int16(&workbuff[2]);
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GDS_INF("\tRows: %d\n\tColumns: %d\n", current_a_reference->rows, current_a_reference->columns);
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break;
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case UNITS:
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if (!current_lib) {
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GDS_WARN("Units defined outside of library!\n");
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@ -799,19 +953,31 @@ int parse_gds_from_file(const char *filename, GList **library_list)
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GDS_INF("\t\tSet coordinate: %d/%d\n", x, y);
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}
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} else if (current_a_reference) {
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for (i = 0; i < 3; i++) {
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x = gds_convert_signed_int(&workbuff[i*8]);
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y = gds_convert_signed_int(&workbuff[i*8+4]);
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current_a_reference->control_points[i].x = x;
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current_a_reference->control_points[i].y = y;
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GDS_INF("\tSet control point %d: %d/%d\n", i, x, y);
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}
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}
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break;
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case STRANS:
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if (!current_s_reference) {
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if (current_s_reference) {
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current_s_reference->flipped = ((workbuff[0] & 0x80) ? 1 : 0);
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} else if (current_a_reference) {
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current_a_reference->flipped = ((workbuff[0] & 0x80) ? 1 : 0);
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} else {
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GDS_ERROR("Transformation defined outside of instance");
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break;
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}
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current_s_reference->flipped = ((workbuff[0] & 0x80) ? 1 : 0);
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break;
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case SNAME:
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if (current_s_reference) {
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name_cell_ref(current_s_reference, (unsigned int)read, workbuff);
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} else if (current_a_reference) {
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name_array_cell_ref(current_a_reference, (unsigned int)read, workbuff);
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} else {
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GDS_ERROR("reference name set outside of cell reference.\n");
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}
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@ -846,12 +1012,16 @@ int parse_gds_from_file(const char *filename, GList **library_list)
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current_s_reference->magnification = gds_convert_double(workbuff);
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GDS_INF("\t\tMagnification defined: %lf\n", current_s_reference->magnification);
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}
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if (current_a_reference != NULL) {
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current_a_reference->magnification = gds_convert_double(workbuff);
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GDS_INF("\t\tMagnification defined: %lf\n", current_a_reference->magnification);
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}
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break;
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case ANGLE:
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if (rec_data_length != 8) {
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GDS_WARN("Angle is not an 8 byte real. Results may be wrong");
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}
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if (current_graphics != NULL && current_s_reference != NULL) {
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if (current_graphics != NULL && current_s_reference != NULL && current_a_reference != NULL) {
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GDS_ERROR("Open Graphics and Cell Reference\n\tMissing ENDEL?");
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run = -6;
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break;
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@ -860,6 +1030,10 @@ int parse_gds_from_file(const char *filename, GList **library_list)
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current_s_reference->angle = gds_convert_double(workbuff);
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GDS_INF("\t\tAngle defined: %lf\n", current_s_reference->angle);
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}
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if (current_a_reference != NULL) {
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current_a_reference->angle = gds_convert_double(workbuff);
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GDS_INF("\t\tAngle defined: %lf\n", current_a_reference->angle);
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}
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break;
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case PATHTYPE:
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if (current_graphics == NULL) {
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