diff options
Diffstat (limited to 'riscos')
| -rw-r--r-- | riscos/plotters.c | 388 |
1 files changed, 388 insertions, 0 deletions
diff --git a/riscos/plotters.c b/riscos/plotters.c new file mode 100644 index 000000000..66ce1e98e --- /dev/null +++ b/riscos/plotters.c @@ -0,0 +1,388 @@ +/*
+ * This file is part of NetSurf, http://netsurf.sourceforge.net/
+ * Licensed under the GNU General Public License,
+ * http://www.opensource.org/licenses/gpl-license
+ * Copyright 2004 James Bursa <bursa@users.sourceforge.net>
+ */
+
+/** \file
+ * Target independent plotting (RISC OS screen implementation).
+ */
+
+#include "oslib/colourtrans.h"
+#include "oslib/draw.h"
+#include "oslib/os.h"
+#include "netsurf/desktop/plotters.h"
+#include "netsurf/render/font.h"
+#include "netsurf/riscos/bitmap.h"
+#include "netsurf/riscos/image.h"
+#include "netsurf/riscos/gui.h"
+#include "netsurf/utils/log.h"
+
+
+static bool ro_plot_clg(colour c);
+static bool ro_plot_rectangle(int x0, int y0, int width, int height,
+ colour c, bool dotted);
+static bool ro_plot_line(int x0, int y0, int x1, int y1, int width,
+ colour c, bool dotted, bool dashed);
+static bool ro_plot_polygon(int *p, unsigned int n, colour fill);
+static bool ro_plot_fill(int x0, int y0, int x1, int y1, colour c);
+static bool ro_plot_clip(int clip_x0, int clip_y0,
+ int clip_x1, int clip_y1);
+static bool ro_plot_text(int x, int y, struct font_data *font,
+ const char *text, size_t length, colour bg, colour c);
+static bool ro_plot_disc(int x, int y, int radius, colour colour);
+static bool ro_plot_bitmap(int x, int y, int width, int height,
+ struct bitmap *bitmap, colour bg);
+static bool ro_plot_bitmap_tile(int x, int y, int width, int height,
+ struct bitmap *bitmap, colour bg,
+ bool repeat_x, bool repeat_y);
+
+
+struct plotter_table plot;
+
+const struct plotter_table ro_plotters = {
+ ro_plot_clg,
+ ro_plot_rectangle,
+ ro_plot_line,
+ ro_plot_polygon,
+ ro_plot_fill,
+ ro_plot_clip,
+ ro_plot_text,
+ ro_plot_disc,
+ ro_plot_bitmap,
+ ro_plot_bitmap_tile
+};
+
+int ro_plot_origin_x = 0;
+int ro_plot_origin_y = 0;
+
+os_trfm ro_plot_trfm = { {
+ { 0x10000, 0 },
+ { 0, 0x10000, },
+ { 0, 0 } } };
+
+
+bool ro_plot_clg(colour c)
+{
+ os_error *error;
+ error = xcolourtrans_set_gcol(c << 8,
+ colourtrans_SET_BG | colourtrans_USE_ECFS,
+ os_ACTION_OVERWRITE, 0, 0);
+ if (error) {
+ LOG(("xcolourtrans_set_gcol: 0x%x: %s",
+ error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_clg();
+ if (error) {
+ LOG(("xos_clg: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+ return true;
+}
+
+
+bool ro_plot_rectangle(int x0, int y0, int width, int height,
+ colour c, bool dotted)
+{
+ os_plot_code plot_code = (dotted ? os_PLOT_DOTTED : os_PLOT_SOLID) |
+ os_PLOT_BY;
+ os_error *error;
+
+ error = xcolourtrans_set_gcol(c << 8, 0, os_ACTION_OVERWRITE, 0, 0);
+ if (error) {
+ LOG(("xcolourtrans_set_gcol: 0x%x: %s",
+ error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_plot(os_MOVE_TO,
+ ro_plot_origin_x + x0 * 2,
+ ro_plot_origin_y - y0 * 2);
+ if (error) {
+ LOG(("xos_plot: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_plot(plot_code, width * 2, 0);
+ if (error) {
+ LOG(("xos_plot: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_plot(plot_code, 0, -height * 2);
+ if (error) {
+ LOG(("xos_plot: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_plot(plot_code, -width * 2, 0);
+ if (error) {
+ LOG(("xos_plot: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_plot(plot_code, 0, height * 2);
+ if (error) {
+ LOG(("xos_plot: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+
+ return true;
+}
+
+
+static int path[] = { draw_MOVE_TO, 0, 0, draw_LINE_TO, 0, 0,
+ draw_END_PATH, 0 };
+static const draw_line_style line_style = { draw_JOIN_MITRED,
+ draw_CAP_BUTT, draw_CAP_BUTT, 0, 0x7fffffff,
+ 0, 0, 0, 0 };
+static const int dash_pattern_dotted[] = { 0, 1, 512 };
+static const int dash_pattern_dashed[] = { 0, 1, 2048 };
+
+bool ro_plot_line(int x0, int y0, int x1, int y1, int width,
+ colour c, bool dotted, bool dashed)
+{
+ const draw_dash_pattern *dash_pattern;
+ os_error *error;
+
+ if (dotted)
+ dash_pattern = (const draw_dash_pattern *) &dash_pattern_dotted;
+ else if (dashed)
+ dash_pattern = (const draw_dash_pattern *) &dash_pattern_dashed;
+ else
+ dash_pattern = NULL;
+
+ path[1] = (ro_plot_origin_x + x0 * 2) * 256;
+ path[2] = (ro_plot_origin_y - y0 * 2) * 256;
+ path[4] = (ro_plot_origin_x + x1 * 2) * 256;
+ path[5] = (ro_plot_origin_y - y1 * 2) * 256;
+ error = xcolourtrans_set_gcol(c << 8, 0, os_ACTION_OVERWRITE, 0, 0);
+ if (error) {
+ LOG(("xcolourtrans_set_gcol: 0x%x: %s",
+ error->errnum, error->errmess));
+ return false;
+ }
+ error = xdraw_stroke((draw_path *) path, 0, 0, 0, width * 256,
+ &line_style, dash_pattern);
+ if (error) {
+ LOG(("xdraw_stroke: 0x%x: %s",
+ error->errnum, error->errmess));
+ return false;
+ }
+
+ return true;
+}
+
+
+bool ro_plot_polygon(int *p, unsigned int n, colour fill)
+{
+ int path[n * 3 + 2];
+ unsigned int i;
+ os_error *error;
+
+ for (i = 0; i != n; i++) {
+ path[i * 3 + 0] = draw_LINE_TO;
+ path[i * 3 + 1] = (ro_plot_origin_x + p[i * 2 + 0] * 2) * 256;
+ path[i * 3 + 2] = (ro_plot_origin_y - p[i * 2 + 1] * 2) * 256;
+ }
+ path[0] = draw_MOVE_TO;
+ path[n * 3] = draw_END_PATH;
+ path[n * 3 + 1] = 0;
+
+ error = xcolourtrans_set_gcol(fill << 8, 0, os_ACTION_OVERWRITE, 0, 0);
+ if (error) {
+ LOG(("xcolourtrans_set_gcol: 0x%x: %s",
+ error->errnum, error->errmess));
+ return false;
+ }
+ error = xdraw_fill((draw_path *) path, 0, 0, 0);
+ if (error) {
+ LOG(("xdraw_fill: 0x%x: %s",
+ error->errnum, error->errmess));
+ return false;
+ }
+
+ return true;
+}
+
+
+bool ro_plot_fill(int x0, int y0, int x1, int y1, colour c)
+{
+ os_error *error;
+
+ error = xcolourtrans_set_gcol(c << 8, colourtrans_USE_ECFS,
+ os_ACTION_OVERWRITE, 0, 0);
+ if (error) {
+ LOG(("xcolourtrans_set_gcol: 0x%x: %s",
+ error->errnum, error->errmess));
+ return false;
+ }
+
+ error = xos_plot(os_MOVE_TO,
+ ro_plot_origin_x + x0 * 2,
+ ro_plot_origin_y - y0 * 2 - 1);
+ if (error) {
+ LOG(("xos_plot: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+
+ error = xos_plot(os_PLOT_RECTANGLE | os_PLOT_TO,
+ ro_plot_origin_x + x1 * 2 - 1,
+ ro_plot_origin_y - y1 * 2);
+ if (error) {
+ LOG(("xos_plot: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+
+ return true;
+}
+
+
+bool ro_plot_clip(int clip_x0, int clip_y0,
+ int clip_x1, int clip_y1)
+{
+ os_error *error;
+
+ clip_x0 = ro_plot_origin_x + clip_x0 * 2;
+ clip_y0 = ro_plot_origin_y - clip_y0 * 2 - 1;
+ clip_x1 = ro_plot_origin_x + clip_x1 * 2 - 1;
+ clip_y1 = ro_plot_origin_y - clip_y1 * 2;
+
+ error = xos_set_graphics_window();
+ if (error) {
+ LOG(("xos_set_graphics_window: 0x%x: %s", error->errnum,
+ error->errmess));
+ return false;
+ }
+ error = xos_writec((char) (clip_x0 & 0xff));
+ if (error) {
+ LOG(("xos_writec: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_writec((char) (clip_x0 >> 8));
+ if (error) {
+ LOG(("xos_writec: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_writec((char) (clip_y1 & 0xff));
+ if (error) {
+ LOG(("xos_writec: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_writec((char) (clip_y1 >> 8));
+ if (error) {
+ LOG(("xos_writec: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_writec((char) (clip_x1 & 0xff));
+ if (error) {
+ LOG(("xos_writec: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_writec((char) (clip_x1 >> 8));
+ if (error) {
+ LOG(("xos_writec: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_writec((char) (clip_y0 & 0xff));
+ if (error) {
+ LOG(("xos_writec: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_writec((char) (clip_y0 >> 8));
+ if (error) {
+ LOG(("xos_writec: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+
+ return true;
+}
+
+
+bool ro_plot_text(int x, int y, struct font_data *font,
+ const char *text, size_t length, colour bg, colour c)
+{
+ os_error *error;
+
+ error = xcolourtrans_set_font_colours(font->handle,
+ bg << 8, c << 8, 14, 0, 0, 0);
+ if (error) {
+ LOG(("xcolourtrans_set_font_colours: 0x%x: %s",
+ error->errnum, error->errmess));
+ return false;
+ }
+ nsfont_paint(font, text, length,
+ ro_plot_origin_x + x * 2,
+ ro_plot_origin_y - y * 2,
+ &ro_plot_trfm);
+ return true;
+}
+
+
+bool ro_plot_disc(int x, int y, int radius, colour colour)
+{
+ os_error *error;
+
+ error = xcolourtrans_set_gcol(colour << 8, 0,
+ os_ACTION_OVERWRITE, 0, 0);
+ if (error) {
+ LOG(("xcolourtrans_set_gcol: 0x%x: %s",
+ error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_plot(os_MOVE_TO,
+ ro_plot_origin_x + x * 2,
+ ro_plot_origin_y - y * 2);
+ if (error) {
+ LOG(("xos_plot: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+ error = xos_plot(os_PLOT_CIRCLE | os_PLOT_BY, radius, 0);
+ if (error) {
+ LOG(("xos_plot: 0x%x: %s", error->errnum, error->errmess));
+ return false;
+ }
+
+ return true;
+}
+
+
+bool ro_plot_bitmap(int x, int y, int width, int height,
+ struct bitmap *bitmap, colour bg)
+{
+ return image_redraw(&bitmap->sprite_area,
+ ro_plot_origin_x + x * 2,
+ ro_plot_origin_y - y * 2,
+ width, height,
+ bitmap->width,
+ bitmap->height,
+ bg,
+ false, false,
+ bitmap->opaque ? IMAGE_PLOT_TINCT_OPAQUE :
+ IMAGE_PLOT_TINCT_ALPHA);
+}
+
+
+bool ro_plot_bitmap_tile(int x, int y, int width, int height,
+ struct bitmap *bitmap, colour bg,
+ bool repeat_x, bool repeat_y)
+{
+ return image_redraw(&bitmap->sprite_area,
+ ro_plot_origin_x + x * 2,
+ ro_plot_origin_y - y * 2,
+ width, height,
+ bitmap->width,
+ bitmap->height,
+ bg,
+ repeat_x, repeat_y,
+ bitmap->opaque ? IMAGE_PLOT_TINCT_OPAQUE :
+ IMAGE_PLOT_TINCT_ALPHA);
+}
+
+
+/**
+ * Set the scale for subsequent text plotting.
+ */
+
+void ro_plot_set_scale(float scale)
+{
+ ro_plot_trfm.entries[0][0] = ro_plot_trfm.entries[1][1] =
+ scale * 0x10000;
+}
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