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Gds Parser: Add support for array refrences (AREFs)

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Mario Hüttel 2019-06-08 12:41:15 +02:00
parent 7f7b4cc7bf
commit e739305f46
1 changed files with 187 additions and 13 deletions
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198
gds-utils/gds-parser.c
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@ -79,7 +79,26 @@ enum gds_record {
BOX = 0x2D00, BOX = 0x2D00,
LAYER = 0x0D02, LAYER = 0x0D02,
WIDTH = 0x0F03, WIDTH = 0x0F03,
PATHTYPE = 0x2102 PATHTYPE = 0x2102,
COLROW = 0x1302,
AREF = 0x0B00
};
/**
* @brief Struct representing an array instantiation.
*
* This struct is defined locally because it is not exposed to the outside of the
* parser. Array references are internally converted to a bunch of standard @ref gds_cell_instance elements.
*/
struct gds_cell_array_instance {
char ref_name[CELL_NAME_MAX]; /**< @brief Name of referenced cell */
struct gds_cell *cell_ref; /**< @brief Referenced gds_cell structure */
struct gds_point control_points[3]; /**< @brief The three control points */
int flipped; /**< @brief Mirror each instance on x-axis before rotation */
double angle; /**< @brief Angle of rotation for each instance (counter clockwise) in degrees */
double magnification; /**< @brief Magnification of each instance */
int columns; /**< @brief Column count */
int rows; /**< @brief Row count */
}; };
/** /**
@ -112,6 +131,36 @@ static int name_cell_ref(struct gds_cell_instance *cell_inst,
return 0; return 0;
} }
/**
* @brief Name cell reference
* @param cell_inst Cell reference
* @param bytes Length of name
* @param data Name
* @return 0 if successful
*/
static int name_array_cell_ref(struct gds_cell_array_instance *cell_inst,
unsigned int bytes, char *data)
{
int len;
if (cell_inst == NULL) {
GDS_ERROR("Naming array cell ref with no opened cell ref");
return -1;
}
data[bytes] = 0; // Append '0'
len = (int)strlen(data);
if (len > CELL_NAME_MAX-1) {
GDS_ERROR("Cell name '%s' too long: %d\n", data, len);
return -1;
}
/* else: */
strcpy(cell_inst->ref_name, data);
GDS_INF("\tCell referenced: %s\n", cell_inst->ref_name);
return 0;
}
/** /**
* @brief Convert GDS 8-byte real to double * @brief Convert GDS 8-byte real to double
* @param data 8 Byte GDS real * @param data 8 Byte GDS real
@ -509,6 +558,62 @@ static void gds_parse_date(const char *buffer, int length, struct gds_time_field
} }
} }
/**
* @brief Convert AREF to a bunch of SREFs and append them to \p container_cell
*
* This function converts a single array reference (\p aref) to gds_cell_array_instance::rows * gds_cell_array_instance::columns
* single references (SREFs). See @ref gds_cell_instance.
*
* Both gds_cell_array_instance::rows and gds_cell_array_instance::columns must be larger than zero.
*
* @param[in] aref Array reference to parse
* @param[in] container_cell cell to add the converted single references to.
*/
static void convert_aref_to_sref(struct gds_cell_array_instance *aref, struct gds_cell *container_cell)
{
struct gds_point origin;
struct gds_point row_shift_vector;
struct gds_point col_shift_vector;
struct gds_cell_instance *sref_inst;
int col;
int row;
if (!aref || !container_cell)
return;
if (aref->columns == 0 || aref->rows == 0) {
GDS_ERROR("Conversion of array instance aborted. No rows / columns.");
return;
}
origin.x = aref->control_points[0].x;
origin.y = aref->control_points[0].y;
row_shift_vector.x = (aref->control_points[2].x - origin.x) / aref->rows;
row_shift_vector.y = (aref->control_points[2].y - origin.y) / aref->rows;
col_shift_vector.x = (aref->control_points[1].x - origin.x) / aref->columns;
col_shift_vector.y = (aref->control_points[1].y - origin.y) / aref->columns;
/* Iterate over columns and rows */
for (col = 0; col < aref->columns; col++) {
for (row = 0; row < aref->rows; row++) {
/* Create new instance for this row/column and aconfigure data */
container_cell->child_cells = append_cell_ref(container_cell->child_cells, &sref_inst);
if (!sref_inst) {
GDS_ERROR("Appending cell ref failed!");
continue;
}
sref_inst->angle = aref->angle;
sref_inst->magnification = aref->magnification;
sref_inst->flipped = aref->flipped;
strncpy(sref_inst->ref_name, aref->ref_name, CELL_NAME_MAX);
sref_inst->origin.x = origin.x + row_shift_vector.x * row + col_shift_vector.x * col;
sref_inst->origin.y = origin.y + row_shift_vector.y * row + col_shift_vector.y * col;
}
}
GDS_INF("Converted AREF to SREFs\n");
}
int parse_gds_from_file(const char *filename, GList **library_list) int parse_gds_from_file(const char *filename, GList **library_list)
{ {
char *workbuff; char *workbuff;
@ -522,6 +627,8 @@ int parse_gds_from_file(const char *filename, GList **library_list)
struct gds_cell *current_cell = NULL; struct gds_cell *current_cell = NULL;
struct gds_graphics *current_graphics = NULL; struct gds_graphics *current_graphics = NULL;
struct gds_cell_instance *current_s_reference = NULL; struct gds_cell_instance *current_s_reference = NULL;
struct gds_cell_array_instance *current_a_reference = NULL;
struct gds_cell_array_instance temp_a_reference;
int x, y; int x, y;
//////////// ////////////
GList *lib_list; GList *lib_list;
@ -701,6 +808,12 @@ int parse_gds_from_file(const char *filename, GList **library_list)
GDS_INF("\tLeaving Reference\n"); GDS_INF("\tLeaving Reference\n");
current_s_reference = NULL; current_s_reference = NULL;
} }
if (current_a_reference != NULL) {
GDS_INF("\tLeaving Array Reference\n");
convert_aref_to_sref(current_a_reference, current_cell);
current_a_reference = NULL;
}
break; break;
case XY: case XY:
if (current_graphics) { if (current_graphics) {
@ -709,24 +822,51 @@ int parse_gds_from_file(const char *filename, GList **library_list)
if (rec_data_length != 8) { if (rec_data_length != 8) {
GDS_WARN("Instance has weird coordinates. Rendered output might be screwed!"); GDS_WARN("Instance has weird coordinates. Rendered output might be screwed!");
} }
} else if (current_a_reference) {
if (rec_data_length != (3*(4+4)))
GDS_WARN("Array instance has weird coordinates. Rendered output might be screwed!");
}
break;
case AREF:
if (current_cell == NULL) {
GDS_ERROR("Cell array reference outside of cell");
run = -3;
break;
} }
if (current_a_reference != NULL) {
GDS_ERROR("Recursive cell array reference");
run = -3;
break; break;
}
GDS_INF("Entering Array Reference\n");
/* Array references are coverted after fully declared. Therefore,
* only a static buffer is needed
*/
current_a_reference = &temp_a_reference;
current_a_reference->ref_name[0] = '\0';
current_a_reference->angle = 0.0;
current_a_reference->magnification = 1.0;
current_a_reference->flipped = 0;
current_a_reference->rows = 0;
current_a_reference->columns = 0;
break;
case COLROW:
case MAG: case MAG:
break;
case ANGLE: case ANGLE:
break;
case STRANS: case STRANS:
break;
case WIDTH: case WIDTH:
break;
case PATHTYPE: case PATHTYPE:
break;
case UNITS: case UNITS:
case LIBNAME:
case SNAME:
case LAYER:
case STRNAME:
break; break;
default: default:
//GDS_WARN("Record: %04x, len: %u", (unsigned int)rec_type, (unsigned int)rec_data_length); GDS_WARN("Unhandled Record: %04x, len: %u", (unsigned int)rec_type, (unsigned int)rec_data_length);
break; break;
} /* switch(rec_type) */ } /* switch(rec_type) */
@ -744,7 +884,7 @@ int parse_gds_from_file(const char *filename, GList **library_list)
} }
switch (rec_type) { switch (rec_type) {
case AREF:
case HEADER: case HEADER:
case ENDLIB: case ENDLIB:
case ENDSTR: case ENDSTR:
@ -756,6 +896,20 @@ int parse_gds_from_file(const char *filename, GList **library_list)
case INVALID: case INVALID:
break; break;
case COLROW:
if (!current_a_reference) {
GDS_ERROR("COLROW record defined outside of array instance");
break;
}
if (rec_data_length != 4 || read != 4) {
GDS_ERROR("COLUMN/ROW count record contains too few data. Won't set column and row counts (%d, %d)",
rec_data_length, read);
break;
}
current_a_reference->columns = (int)gds_convert_signed_int16(&workbuff[0]);
current_a_reference->rows = (int)gds_convert_signed_int16(&workbuff[2]);
GDS_INF("\tRows: %d\n\tColumns: %d\n", current_a_reference->rows, current_a_reference->columns);
break;
case UNITS: case UNITS:
if (!current_lib) { if (!current_lib) {
GDS_WARN("Units defined outside of library!\n"); GDS_WARN("Units defined outside of library!\n");
@ -799,19 +953,31 @@ int parse_gds_from_file(const char *filename, GList **library_list)
GDS_INF("\t\tSet coordinate: %d/%d\n", x, y); GDS_INF("\t\tSet coordinate: %d/%d\n", x, y);
} }
} else if (current_a_reference) {
for (i = 0; i < 3; i++) {
x = gds_convert_signed_int(&workbuff[i*8]);
y = gds_convert_signed_int(&workbuff[i*8+4]);
current_a_reference->control_points[i].x = x;
current_a_reference->control_points[i].y = y;
GDS_INF("\tSet control point %d: %d/%d\n", i, x, y);
}
} }
break; break;
case STRANS: case STRANS:
if (!current_s_reference) { if (current_s_reference) {
current_s_reference->flipped = ((workbuff[0] & 0x80) ? 1 : 0);
} else if (current_a_reference) {
current_a_reference->flipped = ((workbuff[0] & 0x80) ? 1 : 0);
} else {
GDS_ERROR("Transformation defined outside of instance"); GDS_ERROR("Transformation defined outside of instance");
break; break;
} }
current_s_reference->flipped = ((workbuff[0] & 0x80) ? 1 : 0);
break; break;
case SNAME: case SNAME:
if (current_s_reference) { if (current_s_reference) {
name_cell_ref(current_s_reference, (unsigned int)read, workbuff); name_cell_ref(current_s_reference, (unsigned int)read, workbuff);
} else if (current_a_reference) {
name_array_cell_ref(current_a_reference, (unsigned int)read, workbuff);
} else { } else {
GDS_ERROR("reference name set outside of cell reference.\n"); GDS_ERROR("reference name set outside of cell reference.\n");
} }
@ -846,12 +1012,16 @@ int parse_gds_from_file(const char *filename, GList **library_list)
current_s_reference->magnification = gds_convert_double(workbuff); current_s_reference->magnification = gds_convert_double(workbuff);
GDS_INF("\t\tMagnification defined: %lf\n", current_s_reference->magnification); GDS_INF("\t\tMagnification defined: %lf\n", current_s_reference->magnification);
} }
if (current_a_reference != NULL) {
current_a_reference->magnification = gds_convert_double(workbuff);
GDS_INF("\t\tMagnification defined: %lf\n", current_a_reference->magnification);
}
break; break;
case ANGLE: case ANGLE:
if (rec_data_length != 8) { if (rec_data_length != 8) {
GDS_WARN("Angle is not an 8 byte real. Results may be wrong"); GDS_WARN("Angle is not an 8 byte real. Results may be wrong");
} }
if (current_graphics != NULL && current_s_reference != NULL) { if (current_graphics != NULL && current_s_reference != NULL && current_a_reference != NULL) {
GDS_ERROR("Open Graphics and Cell Reference\n\tMissing ENDEL?"); GDS_ERROR("Open Graphics and Cell Reference\n\tMissing ENDEL?");
run = -6; run = -6;
break; break;
@ -860,6 +1030,10 @@ int parse_gds_from_file(const char *filename, GList **library_list)
current_s_reference->angle = gds_convert_double(workbuff); current_s_reference->angle = gds_convert_double(workbuff);
GDS_INF("\t\tAngle defined: %lf\n", current_s_reference->angle); GDS_INF("\t\tAngle defined: %lf\n", current_s_reference->angle);
} }
if (current_a_reference != NULL) {
current_a_reference->angle = gds_convert_double(workbuff);
GDS_INF("\t\tAngle defined: %lf\n", current_a_reference->angle);
}
break; break;
case PATHTYPE: case PATHTYPE:
if (current_graphics == NULL) { if (current_graphics == NULL) {