static char *dumb_changes_row(int r)
{
- return screen_changes + r * h_screen_cols;
+ return screen_changes + r * h_screen_cols;
}
int os_char_width (zchar z)
{
- if (plain_ascii && z >= ZC_LATIN1_MIN && z <= ZC_LATIN1_MAX) {
- char *p = latin1_to_ascii + 4 * (z - ZC_LATIN1_MIN);
- return strchr(p, ' ') - p;
- }
- return 1;
+ if (plain_ascii && z >= ZC_LATIN1_MIN && z <= ZC_LATIN1_MAX) {
+ char *p = latin1_to_ascii + 4 * (z - ZC_LATIN1_MIN);
+ return strchr(p, ' ') - p;
+ }
+ return 1;
}
int os_string_width (const zchar *s)
{
- int width = 0;
- zchar c;
-
- while ((c = *s++) != 0)
- if (c == ZC_NEW_STYLE || c == ZC_NEW_FONT)
- s++;
- else
- width += os_char_width(c);
-
- return width;
+ int width = 0;
+ zchar c;
+
+ while ((c = *s++) != 0) {
+ if (c == ZC_NEW_STYLE || c == ZC_NEW_FONT)
+ s++;
+ else
+ width += os_char_width(c);
+ }
+ return width;
}
void os_set_cursor(int row, int col)
{
- cursor_row = row - 1; cursor_col = col - 1;
- if (cursor_row >= h_screen_rows)
- cursor_row = h_screen_rows - 1;
+ cursor_row = row - 1; cursor_col = col - 1;
+ if (cursor_row >= h_screen_rows)
+ cursor_row = h_screen_rows - 1;
}
/* Set a cell and update screen_changes. */
static void dumb_set_cell(int row, int col, cell c)
{
- dumb_changes_row(row)[col] = (c != dumb_row(row)[col]);
- dumb_row(row)[col] = c;
+ dumb_changes_row(row)[col] = (c != dumb_row(row)[col]);
+ dumb_row(row)[col] = c;
}
void dumb_set_picture_cell(int row, int col, char c)
{
- dumb_set_cell(row, col, make_cell(PICTURE_STYLE, c));
+ dumb_set_cell(row, col, make_cell(PICTURE_STYLE, c));
}
/* Copy a cell and copy its changedness state.
static void dumb_copy_cell(int dest_row, int dest_col,
int src_row, int src_col)
{
- dumb_row(dest_row)[dest_col] = dumb_row(src_row)[src_col];
- dumb_changes_row(dest_row)[dest_col] = dumb_changes_row(src_row)[src_col];
+ dumb_row(dest_row)[dest_col] = dumb_row(src_row)[src_col];
+ dumb_changes_row(dest_row)[dest_col] = dumb_changes_row(src_row)[src_col];
}
void os_set_text_style(int x)
{
- current_style = x & REVERSE_STYLE;
+ current_style = x & REVERSE_STYLE;
}
/* put a character in the cell at the cursor and advance the cursor. */
static void dumb_display_char(char c)
{
- dumb_set_cell(cursor_row, cursor_col, make_cell(current_style, c));
- if (++cursor_col == h_screen_cols)
- if (cursor_row == h_screen_rows - 1)
- cursor_col--;
- else {
- cursor_row++;
- cursor_col = 0;
+ dumb_set_cell(cursor_row, cursor_col, make_cell(current_style, c));
+ if (++cursor_col == h_screen_cols) {
+ if (cursor_row == h_screen_rows - 1)
+ cursor_col--;
+ else {
+ cursor_row++;
+ cursor_col = 0;
+ }
}
}
void dumb_display_user_input(char *s)
{
- /* copy to screen without marking it as a change. */
- while (*s)
- dumb_row(cursor_row)[cursor_col++] = make_cell(0, *s++);
+ /* copy to screen without marking it as a change. */
+ while (*s)
+ dumb_row(cursor_row)[cursor_col++] = make_cell(0, *s++);
}
void dumb_discard_old_input(int num_chars)
/* Weird discard stuff. Grep spec for 'pain in my butt'. */
/* The old characters should be on the screen just before the cursor.
* Erase them. */
- cursor_col -= num_chars;
- if (cursor_col < 0)
- cursor_col = 0;
- os_erase_area(cursor_row + 1, cursor_col + 1,
- cursor_row + 1, cursor_col + num_chars, -1);
+ cursor_col -= num_chars;
+
+ if (cursor_col < 0)
+ cursor_col = 0;
+ os_erase_area(cursor_row + 1, cursor_col + 1,
+ cursor_row + 1, cursor_col + num_chars, -1);
}
void os_display_char (zchar c)
{
- if (c >= ZC_LATIN1_MIN && c <= ZC_LATIN1_MAX) {
- if (plain_ascii) {
- char *ptr = latin1_to_ascii + 4 * (c - ZC_LATIN1_MIN);
- do
- dumb_display_char(*ptr++);
- while (*ptr != ' ');
- } else
- dumb_display_char(c);
- } else if (c >= 32 && c <= 126) {
- dumb_display_char(c);
- } else if (c == ZC_GAP) {
- dumb_display_char(' '); dumb_display_char(' ');
- } else if (c == ZC_INDENT) {
- dumb_display_char(' '); dumb_display_char(' '); dumb_display_char(' ');
- }
+ if (c >= ZC_LATIN1_MIN && c <= ZC_LATIN1_MAX) {
+ if (plain_ascii) {
+ char *ptr = latin1_to_ascii + 4 * (c - ZC_LATIN1_MIN);
+ do
+ dumb_display_char(*ptr++);
+ while (*ptr != ' ');
+ } else
+ dumb_display_char(c);
+ } else if (c >= 32 && c <= 126) {
+ dumb_display_char(c);
+ } else if (c == ZC_GAP) {
+ dumb_display_char(' '); dumb_display_char(' ');
+ } else if (c == ZC_INDENT) {
+ dumb_display_char(' '); dumb_display_char(' '); dumb_display_char(' ');
+ }
return;
}
/* Haxor your boxor? */
void os_display_string (const zchar *s)
{
- zchar c;
-
- while ((c = *s++) != 0)
- if (c == ZC_NEW_FONT)
- s++;
- else if (c == ZC_NEW_STYLE)
- os_set_text_style(*s++);
- else {
- os_display_char (c);
- }
+ zchar c;
+
+ while ((c = *s++) != 0) {
+ if (c == ZC_NEW_FONT)
+ s++;
+ else if (c == ZC_NEW_STYLE)
+ os_set_text_style(*s++);
+ else {
+ os_display_char (c);
+ }
+ }
}
void os_erase_area (int top, int left, int bottom, int right, int win)
{
- int row, col;
- top--; left--; bottom--; right--;
- for (row = top; row <= bottom; row++)
- for (col = left; col <= right; col++)
- dumb_set_cell(row, col, make_cell(current_style, ' '));
+ int row, col;
+ top--; left--; bottom--; right--;
+ for (row = top; row <= bottom; row++) {
+ for (col = left; col <= right; col++)
+ dumb_set_cell(row, col, make_cell(current_style, ' '));
+ }
}
void os_scroll_area (int top, int left, int bottom, int right, int units)
{
- int row, col;
- top--; left--; bottom--; right--;
- if (units > 0) {
- for (row = top; row <= bottom - units; row++)
- for (col = left; col <= right; col++)
- dumb_copy_cell(row, col, row + units, col);
- os_erase_area(bottom - units + 2, left + 1, bottom + 1, right + 1, -1 );
- } else if (units < 0) {
- for (row = bottom; row >= top - units; row--)
- for (col = left; col <= right; col++)
- dumb_copy_cell(row, col, row + units, col);
- os_erase_area(top + 1, left + 1, top - units, right + 1 , -1);
- }
+ int row, col;
+
+ top--; left--; bottom--; right--;
+
+ if (units > 0) {
+ for (row = top; row <= bottom - units; row++) {
+ for (col = left; col <= right; col++)
+ dumb_copy_cell(row, col, row + units, col);
+ }
+ os_erase_area(bottom - units + 2, left + 1, bottom + 1, right + 1, -1 );
+ } else if (units < 0) {
+ for (row = bottom; row >= top - units; row--) {
+ for (col = left; col <= right; col++)
+ dumb_copy_cell(row, col, row + units, col);
+ }
+ os_erase_area(top + 1, left + 1, top - units, right + 1 , -1);
+ }
}
int os_font_data(int font, int *height, int *width)
{
if (font == TEXT_FONT) {
- *height = 1; *width = 1; return 1;
+ *height = 1; *width = 1; return 1;
}
return 0;
}
/* Print a cell to stdout. */
static void show_cell(cell cel)
{
- char c = cell_char(cel);
- switch (cell_style(cel)) {
- case 0:
- putchar(c);
- break;
- case PICTURE_STYLE:
- putchar(show_pictures ? c : ' ');
- break;
- case REVERSE_STYLE:
- if (c == ' ')
- putchar(rv_blank_char);
- else
- switch (rv_mode) {
- case RV_NONE: putchar(c); break;
- case RV_CAPS: putchar(toupper(c)); break;
- case RV_UNDERLINE: putchar('_'); putchar('\b'); putchar(c); break;
- case RV_DOUBLESTRIKE: putchar(c); putchar('\b'); putchar(c); break;
- }
- break;
- }
+ char c = cell_char(cel);
+ switch (cell_style(cel)) {
+ case 0:
+ putchar(c);
+ break;
+ case PICTURE_STYLE:
+ putchar(show_pictures ? c : ' ');
+ break;
+ case REVERSE_STYLE:
+ if (c == ' ')
+ putchar(rv_blank_char);
+ else
+ switch (rv_mode) {
+ case RV_NONE: putchar(c); break;
+ case RV_CAPS: putchar(toupper(c)); break;
+ case RV_UNDERLINE: putchar('_'); putchar('\b'); putchar(c); break;
+ case RV_DOUBLESTRIKE: putchar(c); putchar('\b'); putchar(c); break;
+ }
+ break;
+ }
}
static bool will_print_blank(cell c)
{
- return (((cell_style(c) == PICTURE_STYLE) && !show_pictures)
- || ((cell_char(c) == ' ')
- && ((cell_style(c) != REVERSE_STYLE) || (rv_blank_char == ' '))));
+ return (((cell_style(c) == PICTURE_STYLE) && !show_pictures)
+ || ((cell_char(c) == ' ')
+ && ((cell_style(c) != REVERSE_STYLE)
+ || (rv_blank_char == ' '))));
}
static void show_line_prefix(int row, char c)
{
- if (show_line_numbers)
- printf((row == -1) ? ".." : "%02d", (row + 1) % 100);
- if (show_line_types)
- putchar(c);
- /* Add a separator char (unless there's nothing to separate). */
- if (show_line_numbers || show_line_types)
- putchar(' ');
+ if (show_line_numbers)
+ printf((row == -1) ? ".." : "%02d", (row + 1) % 100);
+ if (show_line_types)
+ putchar(c);
+ /* Add a separator char (unless there's nothing to separate). */
+ if (show_line_numbers || show_line_types)
+ putchar(' ');
}
/* Print a row to stdout. */
static void show_row(int r)
{
- if (r == -1) {
- show_line_prefix(-1, '.');
- } else {
- int c, last;
- show_line_prefix(r, (r == cursor_row) ? ']' : ' ');
- /* Don't print spaces at end of line. */
- /* (Saves bandwidth and printhead wear.) */
- /* TODO: compress spaces to tabs. */
- for (last = h_screen_cols - 1; last >= 0; last--)
- if (!will_print_blank(dumb_row(r)[last]))
- break;
- for (c = 0; c <= last; c++)
- show_cell(dumb_row(r)[c]);
- }
- putchar('\n');
+ if (r == -1) {
+ show_line_prefix(-1, '.');
+ } else {
+ int c, last;
+ show_line_prefix(r, (r == cursor_row) ? ']' : ' ');
+ /* Don't print spaces at end of line. */
+ /* (Saves bandwidth and printhead wear.) */
+ /* TODO: compress spaces to tabs. */
+ for (last = h_screen_cols - 1; last >= 0; last--)
+ if (!will_print_blank(dumb_row(r)[last]))
+ break;
+ for (c = 0; c <= last; c++)
+ show_cell(dumb_row(r)[c]);
+ }
+ putchar('\n');
}
/* Print the part of the cursor row before the cursor. */
void dumb_show_prompt(bool show_cursor, char line_type)
{
- int i;
- show_line_prefix(show_cursor ? cursor_row : -1, line_type);
- if (show_cursor)
- for (i = 0; i < cursor_col; i++)
- show_cell(dumb_row(cursor_row)[i]);
+ int i;
+ show_line_prefix(show_cursor ? cursor_row : -1, line_type);
+ if (show_cursor) {
+ for (i = 0; i < cursor_col; i++)
+ show_cell(dumb_row(cursor_row)[i]);
+ }
}
static void mark_all_unchanged(void)
{
- memset(screen_changes, 0, screen_cells);
+ memset(screen_changes, 0, screen_cells);
}
/* Check if a cell is a blank or will display as one.
* (Used to help decide if contents are worth printing.) */
static bool is_blank(cell c)
{
- return ((cell_char(c) == ' ')
- || ((cell_style(c) == PICTURE_STYLE) && !show_pictures));
+ return ((cell_char(c) == ' ')
+ || ((cell_style(c) == PICTURE_STYLE) && !show_pictures));
}
/* Show the current screen contents, or what's changed since the last
* line just below it). */
void dumb_show_screen(bool show_cursor)
{
- int r, c, first, last;
- char changed_rows[0x100];
+ int r, c, first, last;
+ char changed_rows[0x100];
+
+ /* Easy case */
+ if (compression_mode == COMPRESSION_NONE) {
+ for (r = hide_lines; r < h_screen_rows; r++)
+ show_row(r);
+ mark_all_unchanged();
+ return;
+ }
- /* Easy case */
- if (compression_mode == COMPRESSION_NONE) {
- for (r = hide_lines; r < h_screen_rows; r++)
- show_row(r);
- mark_all_unchanged();
- return;
- }
-
- /* Check which rows changed, and where the first and last change is. */
- first = last = -1;
- memset(changed_rows, 0, h_screen_rows);
- for (r = hide_lines; r < h_screen_rows; r++) {
- for (c = 0; c < h_screen_cols; c++)
- if (dumb_changes_row(r)[c] && !is_blank(dumb_row(r)[c]))
- break;
- changed_rows[r] = (c != h_screen_cols);
- if (changed_rows[r]) {
- first = (first != -1) ? first : r;
- last = r;
+ /* Check which rows changed, and where the first and last change is. */
+ first = last = -1;
+ memset(changed_rows, 0, h_screen_rows);
+ for (r = hide_lines; r < h_screen_rows; r++) {
+ for (c = 0; c < h_screen_cols; c++)
+ if (dumb_changes_row(r)[c] && !is_blank(dumb_row(r)[c]))
+ break;
+ changed_rows[r] = (c != h_screen_cols);
+ if (changed_rows[r]) {
+ first = (first != -1) ? first : r;
+ last = r;
+ }
}
- }
- if (first == -1)
- return;
+ if (first == -1)
+ return;
- /* The show_cursor rule described above */
- if (show_cursor && (cursor_row == last)) {
- for (c = cursor_col; c < h_screen_cols; c++)
- if (!is_blank(dumb_row(last)[c]))
- break;
- if (c == h_screen_cols)
- last--;
- }
-
- /* Display the appropriate rows. */
- if (compression_mode == COMPRESSION_MAX) {
- for (r = first; r <= last; r++)
- if (changed_rows[r])
- show_row(r);
- } else {
- /* COMPRESSION_SPANS */
- for (r = first; r <= last; r++) {
- if (changed_rows[r] || changed_rows[r + 1])
- show_row(r);
- else {
- while (!changed_rows[r + 1])
- r++;
- show_row(-1);
- }
+ /* The show_cursor rule described above */
+ if (show_cursor && (cursor_row == last)) {
+ for (c = cursor_col; c < h_screen_cols; c++)
+ if (!is_blank(dumb_row(last)[c]))
+ break;
+ if (c == h_screen_cols)
+ last--;
+ }
+
+ /* Display the appropriate rows. */
+ if (compression_mode == COMPRESSION_MAX) {
+ for (r = first; r <= last; r++)
+ if (changed_rows[r])
+ show_row(r);
+ } else {
+ /* COMPRESSION_SPANS */
+ for (r = first; r <= last; r++) {
+ if (changed_rows[r] || changed_rows[r + 1])
+ show_row(r);
+ else {
+ while (!changed_rows[r + 1])
+ r++;
+ show_row(-1);
+ }
+ }
+ if (show_cursor && (cursor_row > last + 1))
+ show_row((cursor_row == last + 2) ? (last + 1) : -1);
}
- if (show_cursor && (cursor_row > last + 1))
- show_row((cursor_row == last + 2) ? (last + 1) : -1);
- }
- mark_all_unchanged();
+ mark_all_unchanged();
}
/* Unconditionally show whole screen. For \s user command. */
void dumb_dump_screen(void)
{
- int r;
- for (r = 0; r < h_screen_height; r++)
- show_row(r);
+ int r;
+ for (r = 0; r < h_screen_height; r++)
+ show_row(r);
}
/* Called when it's time for a more prompt but user has them turned off. */
void dumb_elide_more_prompt(void)
{
- dumb_show_screen(FALSE);
- if (compression_mode == COMPRESSION_SPANS && hide_lines == 0) {
- show_row(-1);
- }
+ dumb_show_screen(FALSE);
+ if (compression_mode == COMPRESSION_SPANS && hide_lines == 0) {
+ show_row(-1);
+ }
}
void os_reset_screen(void)
{
- dumb_show_screen(FALSE);
+ dumb_show_screen(FALSE);
}
void os_beep (int volume)
{
- if (visual_bell)
- printf("[%s-PITCHED BEEP]\n", (volume == 1) ? "HIGH" : "LOW");
- else
- putchar('\a'); /* so much for dumb. */
+ if (visual_bell)
+ printf("[%s-PITCHED BEEP]\n", (volume == 1) ? "HIGH" : "LOW");
+ else
+ putchar('\a'); /* so much for dumb. */
}
/* if val is '0' or '1', set *var accordingly, else toggle it. */
static void toggle(bool *var, char val)
{
- *var = val == '1' || (val != '0' && !*var);
+ *var = val == '1' || (val != '0' && !*var);
}
bool dumb_output_handle_setting(const char *setting, bool show_cursor,
bool startup)
{
- char *p;
- int i;
-
- if (!strncmp(setting, "pb", 2)) {
- toggle(&show_pictures, setting[2]);
- printf("Picture outlines display %s\n", show_pictures ? "ON" : "OFF");
- if (startup)
- return TRUE;
- for (i = 0; i < screen_cells; i++)
- screen_changes[i] = (cell_style(screen_data[i]) == PICTURE_STYLE);
- dumb_show_screen(show_cursor);
-
- } else if (!strncmp(setting, "vb", 2)) {
- toggle(&visual_bell, setting[2]);
- printf("Visual bell %s\n", visual_bell ? "ON" : "OFF");
- os_beep(1); os_beep(2);
-
- } else if (!strncmp(setting, "ln", 2)) {
- toggle(&show_line_numbers, setting[2]);
- printf("Line numbering %s\n", show_line_numbers ? "ON" : "OFF");
-
- } else if (!strncmp(setting, "lt", 2)) {
- toggle(&show_line_types, setting[2]);
- printf("Line-type display %s\n", show_line_types ? "ON" : "OFF");
-
- } else if (*setting == 'c') {
- switch (setting[1]) {
- case 'm': compression_mode = COMPRESSION_MAX; break;
- case 's': compression_mode = COMPRESSION_SPANS; break;
- case 'n': compression_mode = COMPRESSION_NONE; break;
- case 'h': hide_lines = atoi(&setting[2]); break;
- default: return FALSE;
- }
- printf("Compression mode %s, hiding top %d lines\n",
- compression_names[compression_mode], hide_lines);
-
- } else if (*setting == 'r') {
- switch (setting[1]) {
- case 'n': rv_mode = RV_NONE; break;
- case 'o': rv_mode = RV_DOUBLESTRIKE; break;
- case 'u': rv_mode = RV_UNDERLINE; break;
- case 'c': rv_mode = RV_CAPS; break;
- case 'b': rv_blank_char = setting[2] ? setting[2] : ' '; break;
- default: return FALSE;
- }
- printf("Reverse-video mode %s, blanks reverse to '%c': ",
- rv_names[rv_mode], rv_blank_char);
- for (p = "sample reverse text"; *p; p++)
- show_cell(make_cell(REVERSE_STYLE, *p));
- putchar('\n');
- for (i = 0; i < screen_cells; i++)
- screen_changes[i] = (cell_style(screen_data[i]) == REVERSE_STYLE);
- dumb_show_screen(show_cursor);
-
- } else if (!strcmp(setting, "set")) {
- printf("Compression Mode %s, hiding top %d lines\n",
- compression_names[compression_mode], hide_lines);
- printf("Picture Boxes display %s\n", show_pictures ? "ON" : "OFF");
- printf("Visual Bell %s\n", visual_bell ? "ON" : "OFF");
- os_beep(1); os_beep(2);
- printf("Line Numbering %s\n", show_line_numbers ? "ON" : "OFF");
- printf("Line-Type display %s\n", show_line_types ? "ON" : "OFF");
- printf("Reverse-Video mode %s, Blanks reverse to '%c': ",
- rv_names[rv_mode], rv_blank_char);
- for (p = "sample reverse text"; *p; p++)
- show_cell(make_cell(REVERSE_STYLE, *p));
- putchar('\n');
- } else
- return FALSE;
- return TRUE;
+ char *p;
+ int i;
+
+ if (!strncmp(setting, "pb", 2)) {
+ toggle(&show_pictures, setting[2]);
+ printf("Picture outlines display %s\n", show_pictures ? "ON" : "OFF");
+ if (startup)
+ return TRUE;
+ for (i = 0; i < screen_cells; i++)
+ screen_changes[i] = (cell_style(screen_data[i]) == PICTURE_STYLE);
+ dumb_show_screen(show_cursor);
+ } else if (!strncmp(setting, "vb", 2)) {
+ toggle(&visual_bell, setting[2]);
+ printf("Visual bell %s\n", visual_bell ? "ON" : "OFF");
+ os_beep(1); os_beep(2);
+ } else if (!strncmp(setting, "ln", 2)) {
+ toggle(&show_line_numbers, setting[2]);
+ printf("Line numbering %s\n", show_line_numbers ? "ON" : "OFF");
+ } else if (!strncmp(setting, "lt", 2)) {
+ toggle(&show_line_types, setting[2]);
+ printf("Line-type display %s\n", show_line_types ? "ON" : "OFF");
+
+ } else if (*setting == 'c') {
+ switch (setting[1]) {
+ case 'm': compression_mode = COMPRESSION_MAX; break;
+ case 's': compression_mode = COMPRESSION_SPANS; break;
+ case 'n': compression_mode = COMPRESSION_NONE; break;
+ case 'h': hide_lines = atoi(&setting[2]); break;
+ default: return FALSE;
+ }
+ printf("Compression mode %s, hiding top %d lines\n",
+ compression_names[compression_mode], hide_lines);
+ } else if (*setting == 'r') {
+ switch (setting[1]) {
+ case 'n': rv_mode = RV_NONE; break;
+ case 'o': rv_mode = RV_DOUBLESTRIKE; break;
+ case 'u': rv_mode = RV_UNDERLINE; break;
+ case 'c': rv_mode = RV_CAPS; break;
+ case 'b': rv_blank_char = setting[2] ? setting[2] : ' '; break;
+ default: return FALSE;
+ }
+ printf("Reverse-video mode %s, blanks reverse to '%c': ",
+ rv_names[rv_mode], rv_blank_char);
+
+ for (p = "sample reverse text"; *p; p++)
+ show_cell(make_cell(REVERSE_STYLE, *p));
+ putchar('\n');
+ for (i = 0; i < screen_cells; i++)
+ screen_changes[i] = (cell_style(screen_data[i]) == REVERSE_STYLE);
+ dumb_show_screen(show_cursor);
+ } else if (!strcmp(setting, "set")) {
+
+ printf("Compression Mode %s, hiding top %d lines\n",
+ compression_names[compression_mode], hide_lines);
+ printf("Picture Boxes display %s\n", show_pictures ? "ON" : "OFF");
+ printf("Visual Bell %s\n", visual_bell ? "ON" : "OFF");
+ os_beep(1); os_beep(2);
+ printf("Line Numbering %s\n", show_line_numbers ? "ON" : "OFF");
+ printf("Line-Type display %s\n", show_line_types ? "ON" : "OFF");
+ printf("Reverse-Video mode %s, Blanks reverse to '%c': ",
+ rv_names[rv_mode], rv_blank_char);
+ for (p = "sample reverse text"; *p; p++)
+ show_cell(make_cell(REVERSE_STYLE, *p));
+ putchar('\n');
+ } else
+ return FALSE;
+ return TRUE;
}
void dumb_init_output(void)
{
- if (h_version == V3) {
- h_config |= CONFIG_SPLITSCREEN;
- h_flags &= ~OLD_SOUND_FLAG;
- }
+ if (h_version == V3) {
+ h_config |= CONFIG_SPLITSCREEN;
+ h_flags &= ~OLD_SOUND_FLAG;
+ }
- if (h_version >= V5) {
- h_flags &= ~SOUND_FLAG;
- }
+ if (h_version >= V5) {
+ h_flags &= ~SOUND_FLAG;
+ }
- h_screen_height = h_screen_rows;
- h_screen_width = h_screen_cols;
- screen_cells = h_screen_rows * h_screen_cols;
+ h_screen_height = h_screen_rows;
+ h_screen_width = h_screen_cols;
+ screen_cells = h_screen_rows * h_screen_cols;
- h_font_width = 1; h_font_height = 1;
+ h_font_width = 1; h_font_height = 1;
- if (show_line_types == -1)
- show_line_types = h_version > 3;
+ if (show_line_types == -1)
+ show_line_types = h_version > 3;
- screen_data = malloc(screen_cells * sizeof(cell));
- screen_changes = malloc(screen_cells);
- os_erase_area(1, 1, h_screen_rows, h_screen_cols, -2);
- memset(screen_changes, 0, screen_cells);
+ screen_data = malloc(screen_cells * sizeof(cell));
+ screen_changes = malloc(screen_cells);
+ os_erase_area(1, 1, h_screen_rows, h_screen_cols, -2);
+ memset(screen_changes, 0, screen_cells);
}
#define PIC_HEADER_HEIGHT 4
static struct {
- int z_num;
- int width;
- int height;
- int orig_width;
- int orig_height;
+ int z_num;
+ int width;
+ int height;
+ int orig_width;
+ int orig_height;
} *pict_info;
static int num_pictures = 0;
static unsigned char lookupb(unsigned char *p, int n) {return p[n];}
static unsigned short lookupw(unsigned char *p, int n)
{
- return (p[n + 1] << 8) | p[n];
+ return (p[n + 1] << 8) | p[n];
}
void dumb_init_pictures (char *filename)
{
- FILE *file = NULL;
- int success = FALSE;
- unsigned char gheader[16];
- unsigned char *raw_info = NULL;
- int i, entry_size, flags;
- float x_scaler, y_scaler;
-
- do {
- if ((h_version != V6)
- || !filename
- || ((file = fopen (filename, "rb")) == NULL)
- || (fread(&gheader, sizeof (gheader), 1, file) != 1))
- break;
-
- num_pictures = lookupw(gheader, PIC_FILE_HEADER_NUM_IMAGES);
- entry_size = lookupb(gheader, PIC_FILE_HEADER_ENTRY_SIZE);
- flags = lookupb(gheader, PIC_FILE_HEADER_FLAGS);
-
- raw_info = malloc(num_pictures * entry_size);
-
- if (fread(raw_info, num_pictures * entry_size, 1, file) != 1)
- break;
-
- pict_info = malloc((num_pictures + 1) * sizeof(*pict_info));
- pict_info[0].z_num = 0;
- pict_info[0].height = num_pictures;
- pict_info[0].width = lookupw(gheader, PIC_FILE_HEADER_VERSION);
-
- y_scaler = h_screen_rows / 200.0;
- x_scaler = h_screen_cols / ((flags & 0x08) ? 640.0 : 320.0);
-
- /* Copy and scale. */
- for (i = 1; i <= num_pictures; i++) {
- unsigned char *p = raw_info + entry_size * (i - 1);
- pict_info[i].z_num = lookupw(p, PIC_HEADER_NUMBER);
- pict_info[i].orig_height = lookupw(p, PIC_HEADER_HEIGHT);
- pict_info[i].orig_width = lookupw(p, PIC_HEADER_WIDTH);
- pict_info[i].height = pict_info[i].orig_height * y_scaler + .5;
- pict_info[i].width = pict_info[i].orig_width * x_scaler + .5;
- }
- success = TRUE;
- } while (0);
- if (file)
- fclose(file);
- if (raw_info)
- free(raw_info);
- if (success)
- h_config |= CONFIG_PICTURES;
- else
- {
- h_flags &= ~GRAPHICS_FLAG;
- if (filename)
- fprintf(stderr, "Warning: could not read graphics file %s\n", filename);
- }
+ FILE *file = NULL;
+ int success = FALSE;
+ unsigned char gheader[16];
+ unsigned char *raw_info = NULL;
+ int i, entry_size, flags;
+ float x_scaler, y_scaler;
+
+ do {
+ if ((h_version != V6)
+ || !filename
+ || ((file = fopen (filename, "rb")) == NULL)
+ || (fread(&gheader, sizeof (gheader), 1, file) != 1))
+ break;
+
+ num_pictures = lookupw(gheader, PIC_FILE_HEADER_NUM_IMAGES);
+ entry_size = lookupb(gheader, PIC_FILE_HEADER_ENTRY_SIZE);
+ flags = lookupb(gheader, PIC_FILE_HEADER_FLAGS);
+
+ raw_info = malloc(num_pictures * entry_size);
+
+ if (fread(raw_info, num_pictures * entry_size, 1, file) != 1)
+ break;
+
+ pict_info = malloc((num_pictures + 1) * sizeof(*pict_info));
+ pict_info[0].z_num = 0;
+ pict_info[0].height = num_pictures;
+ pict_info[0].width = lookupw(gheader, PIC_FILE_HEADER_VERSION);
+
+ y_scaler = h_screen_rows / 200.0;
+ x_scaler = h_screen_cols / ((flags & 0x08) ? 640.0 : 320.0);
+
+ /* Copy and scale. */
+ for (i = 1; i <= num_pictures; i++) {
+ unsigned char *p = raw_info + entry_size * (i - 1);
+ pict_info[i].z_num = lookupw(p, PIC_HEADER_NUMBER);
+ pict_info[i].orig_height = lookupw(p, PIC_HEADER_HEIGHT);
+ pict_info[i].orig_width = lookupw(p, PIC_HEADER_WIDTH);
+ pict_info[i].height = pict_info[i].orig_height * y_scaler + .5;
+ pict_info[i].width = pict_info[i].orig_width * x_scaler + .5;
+ }
+ success = TRUE;
+ } while (0);
+
+ if (file)
+ fclose(file);
+ if (raw_info)
+ free(raw_info);
+ if (success)
+ h_config |= CONFIG_PICTURES;
+ else {
+ h_flags &= ~GRAPHICS_FLAG;
+ if (filename)
+ fprintf(stderr, "Warning: could not read graphics file %s\n", filename);
+ }
}
/* Convert a Z picture number to an index into pict_info. */
static int z_num_to_index(int n)
{
- int i;
- for (i = 0; i <= num_pictures; i++)
- if (pict_info[i].z_num == n)
- return i;
- return -1;
+ int i;
+ for (i = 0; i <= num_pictures; i++)
+ if (pict_info[i].z_num == n)
+ return i;
+ return -1;
}
bool os_picture_data(int num, int *height, int *width)
{
- int index;
+ int index;
- *height = 0;
- *width = 0;
+ *height = 0;
+ *width = 0;
- if (!pict_info)
- return FALSE;
+ if (!pict_info)
+ return FALSE;
- if ((index = z_num_to_index(num)) == -1)
- return FALSE;
+ if ((index = z_num_to_index(num)) == -1)
+ return FALSE;
- *height = pict_info[index].height;
- *width = pict_info[index].width;
+ *height = pict_info[index].height;
+ *width = pict_info[index].width;
- return TRUE;
+ return TRUE;
}
void os_draw_picture (int num, int row, int col)
{
- int width, height, r, c;
- if (!os_picture_data(num, &height, &width) || !width || !height)
- return;
- col--, row--;
- /* Draw corners */
- dumb_set_picture_cell(row, col, '+');
- dumb_set_picture_cell(row, col + width - 1, '+');
- dumb_set_picture_cell(row + height - 1, col, '+');
- dumb_set_picture_cell(row + height - 1, col + width - 1, '+');
- /* sides */
- for (c = col + 1; c < col + width - 1; c++) {
- dumb_set_picture_cell(row, c, '-');
- dumb_set_picture_cell(row + height - 1, c, '-');
- }
- for (r = row + 1; r < row + height - 1; r++) {
- dumb_set_picture_cell(r, col, '|');
- dumb_set_picture_cell(r, col + width - 1, '|');
- }
- /* body, but for last line */
- for (r = row + 1; r < row + height - 2; r++)
- for (c = col + 1; c < col + width - 1; c++)
- dumb_set_picture_cell(r, c, ':');
- /* Last line of body, including picture number. */
- if (height >= 3)
- for (c = col + width - 2; c > col; c--, (num /= 10))
- dumb_set_picture_cell(row + height - 2, c, num ? (num % 10 + '0') : ':');
+ int width, height, r, c;
+ if (!os_picture_data(num, &height, &width) || !width || !height)
+ return;
+ col--, row--;
+ /* Draw corners */
+ dumb_set_picture_cell(row, col, '+');
+ dumb_set_picture_cell(row, col + width - 1, '+');
+ dumb_set_picture_cell(row + height - 1, col, '+');
+ dumb_set_picture_cell(row + height - 1, col + width - 1, '+');
+ /* sides */
+ for (c = col + 1; c < col + width - 1; c++) {
+ dumb_set_picture_cell(row, c, '-');
+ dumb_set_picture_cell(row + height - 1, c, '-');
+ }
+ for (r = row + 1; r < row + height - 1; r++) {
+ dumb_set_picture_cell(r, col, '|');
+ dumb_set_picture_cell(r, col + width - 1, '|');
+ }
+ /* body, but for last line */
+ for (r = row + 1; r < row + height - 2; r++)
+ for (c = col + 1; c < col + width - 1; c++)
+ dumb_set_picture_cell(r, c, ':');
+ /* Last line of body, including picture number. */
+ if (height >= 3)
+ for (c = col + width - 2; c > col; c--, (num /= 10))
+ dumb_set_picture_cell(row + height - 2, c, num ? (num % 10 + '0') : ':');
}
int os_peek_colour (void) {return BLACK_COLOUR; }
Scope-eye.net Git Repository / liskon_frotz.git / commitdiff