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Diffstat (limited to 'riscos/plotters.c')
-rw-r--r-- | riscos/plotters.c | 525 |
1 files changed, 0 insertions, 525 deletions
diff --git a/riscos/plotters.c b/riscos/plotters.c deleted file mode 100644 index 38fd9d74a..000000000 --- a/riscos/plotters.c +++ /dev/null @@ -1,525 +0,0 @@ -/* - * Copyright 2004 James Bursa <bursa@users.sourceforge.net> - * - * This file is part of NetSurf, http://www.netsurf-browser.org/ - * - * NetSurf is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * NetSurf is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -/** \file - * Target independent plotting (RISC OS screen implementation). - */ - -#include <stdbool.h> -#include <math.h> -#include "oslib/colourtrans.h" -#include "oslib/draw.h" -#include "oslib/os.h" - -#include "utils/log.h" -#include "utils/utils.h" -#include "desktop/plotters.h" - -#include "riscos/bitmap.h" -#include "riscos/image.h" -#include "riscos/gui.h" -#include "riscos/font.h" -#include "riscos/oslib_pre7.h" - -static bool ro_plot_rectangle(int x0, int y0, int x1, int y1, const plot_style_t *style); -static bool ro_plot_line(int x0, int y0, int x1, int y1, const plot_style_t *style); -static bool ro_plot_draw_path(const draw_path * const path, int width, - colour c, bool dotted, bool dashed); -static bool ro_plot_polygon(const int *p, unsigned int n, const plot_style_t *style); -static bool ro_plot_path(const float *p, unsigned int n, colour fill, float width, - colour c, const float transform[6]); -static bool ro_plot_clip(const struct rect *clip); -static bool ro_plot_text(int x, int y, const char *text, size_t length, - const plot_font_style_t *fstyle); -static bool ro_plot_disc(int x, int y, int radius, const plot_style_t *style); -static bool ro_plot_arc(int x, int y, int radius, int angle1, int angle2, - const plot_style_t *style); -static bool ro_plot_bitmap(int x, int y, int width, int height, - struct bitmap *bitmap, colour bg, - bitmap_flags_t flags); - - -struct plotter_table plot; - -const struct plotter_table ro_plotters = { - .rectangle = ro_plot_rectangle, - .line = ro_plot_line, - .polygon = ro_plot_polygon, - .clip = ro_plot_clip, - .text = ro_plot_text, - .disc = ro_plot_disc, - .arc = ro_plot_arc, - .bitmap = ro_plot_bitmap, - .path = ro_plot_path, - .option_knockout = true, -}; - -int ro_plot_origin_x = 0; -int ro_plot_origin_y = 0; - -/** One version of the A9home OS is incapable of drawing patterned lines */ -bool ro_plot_patterned_lines = true; - - - -bool ro_plot_rectangle(int x0, int y0, int x1, int y1, const plot_style_t *style) -{ - if (style->fill_type != PLOT_OP_TYPE_NONE) { - os_error *error; - error = xcolourtrans_set_gcol(style->fill_colour << 8, - colourtrans_USE_ECFS_GCOL, - 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; - } - } - - if (style->stroke_type != PLOT_OP_TYPE_NONE) { - bool dotted = false; - bool dashed = false; - - const int path[] = { draw_MOVE_TO, - (ro_plot_origin_x + x0 * 2) * 256, - (ro_plot_origin_y - y0 * 2 - 1) * 256, - draw_LINE_TO, - (ro_plot_origin_x + (x1) * 2) * 256, - (ro_plot_origin_y - y0 * 2 - 1) * 256, - draw_LINE_TO, - (ro_plot_origin_x + (x1) * 2) * 256, - (ro_plot_origin_y - (y1) * 2 - 1) * 256, - draw_LINE_TO, - (ro_plot_origin_x + x0 * 2) * 256, - (ro_plot_origin_y - (y1) * 2 - 1) * 256, - draw_CLOSE_LINE, - (ro_plot_origin_x + x0 * 2) * 256, - (ro_plot_origin_y - y0 * 2 - 1) * 256, - draw_END_PATH }; - - if (style->stroke_type == PLOT_OP_TYPE_DOT) - dotted = true; - - if (style->stroke_type == PLOT_OP_TYPE_DASH) - dashed = true; - - ro_plot_draw_path((const draw_path *)path, - style->stroke_width, - style->stroke_colour, - dotted, dashed); - } - - return true; -} - - -bool ro_plot_line(int x0, int y0, int x1, int y1, const plot_style_t *style) -{ - if (style->stroke_type != PLOT_OP_TYPE_NONE) { - const int path[] = { draw_MOVE_TO, - (ro_plot_origin_x + x0 * 2) * 256, - (ro_plot_origin_y - y0 * 2 - 1) * 256, - draw_LINE_TO, - (ro_plot_origin_x + x1 * 2) * 256, - (ro_plot_origin_y - y1 * 2 - 1) * 256, - draw_END_PATH }; - bool dotted = false; - bool dashed = false; - - if (style->stroke_type == PLOT_OP_TYPE_DOT) - dotted = true; - - if (style->stroke_type == PLOT_OP_TYPE_DASH) - dashed = true; - - return ro_plot_draw_path((const draw_path *)path, - style->stroke_width, - style->stroke_colour, - dotted, dashed); - } - return true; -} - - -bool ro_plot_draw_path(const draw_path * const path, int width, - colour c, bool dotted, bool dashed) -{ - static const draw_line_style line_style = { draw_JOIN_MITRED, - draw_CAP_BUTT, draw_CAP_BUTT, 0, 0x7fffffff, - 0, 0, 0, 0 }; - draw_dash_pattern dash = { 0, 1, { 512 } }; - const draw_dash_pattern *dash_pattern = 0; - os_error *error; - - if (width < 1) - width = 1; - - if (ro_plot_patterned_lines) { - if (dotted) { - dash.elements[0] = 512 * width; - dash_pattern = ‐ - } else if (dashed) { - dash.elements[0] = 1536 * width; - dash_pattern = ‐ - } - } - - 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(path, 0, 0, 0, width * 2 * 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(const int *p, unsigned int n, const plot_style_t *style) -{ - 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(style->fill_colour << 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_path(const float *p, unsigned int n, colour fill, float width, - colour c, const float transform[6]) -{ - static const draw_line_style line_style = { draw_JOIN_MITRED, - draw_CAP_BUTT, draw_CAP_BUTT, 0, 0x7fffffff, - 0, 0, 0, 0 }; - int *path = 0; - unsigned int i; - os_trfm trfm; - os_error *error; - - if (n == 0) - return true; - - if (p[0] != PLOTTER_PATH_MOVE) { - LOG("path doesn't start with a move"); - goto error; - } - - path = malloc(sizeof *path * (n + 10)); - if (!path) { - LOG("out of memory"); - goto error; - } - - for (i = 0; i < n; ) { - if (p[i] == PLOTTER_PATH_MOVE) { - path[i] = draw_MOVE_TO; - path[i + 1] = p[i + 1] * 2 * 256; - path[i + 2] = -p[i + 2] * 2 * 256; - i += 3; - } else if (p[i] == PLOTTER_PATH_CLOSE) { - path[i] = draw_CLOSE_LINE; - i++; - } else if (p[i] == PLOTTER_PATH_LINE) { - path[i] = draw_LINE_TO; - path[i + 1] = p[i + 1] * 2 * 256; - path[i + 2] = -p[i + 2] * 2 * 256; - i += 3; - } else if (p[i] == PLOTTER_PATH_BEZIER) { - path[i] = draw_BEZIER_TO; - path[i + 1] = p[i + 1] * 2 * 256; - path[i + 2] = -p[i + 2] * 2 * 256; - path[i + 3] = p[i + 3] * 2 * 256; - path[i + 4] = -p[i + 4] * 2 * 256; - path[i + 5] = p[i + 5] * 2 * 256; - path[i + 6] = -p[i + 6] * 2 * 256; - i += 7; - } else { - LOG("bad path command %f", p[i]); - goto error; - } - } - path[i] = draw_END_PATH; - path[i + 1] = 0; - - trfm.entries[0][0] = transform[0] * 0x10000; - trfm.entries[0][1] = transform[1] * 0x10000; - trfm.entries[1][0] = transform[2] * 0x10000; - trfm.entries[1][1] = transform[3] * 0x10000; - trfm.entries[2][0] = (ro_plot_origin_x + transform[4] * 2) * 256; - trfm.entries[2][1] = (ro_plot_origin_y - transform[5] * 2) * 256; - - if (fill != NS_TRANSPARENT) { - 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); - goto error; - } - - error = xdraw_fill((draw_path *) path, 0, &trfm, 0); - if (error) { - LOG("xdraw_stroke: 0x%x: %s", error->errnum, error->errmess); - goto error; - } - } - - if (c != NS_TRANSPARENT) { - 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); - goto error; - } - - error = xdraw_stroke((draw_path *) path, 0, &trfm, 0, - width * 2 * 256, &line_style, 0); - if (error) { - LOG("xdraw_stroke: 0x%x: %s", error->errnum, error->errmess); - goto error; - } - } - - free(path); - return true; - -error: - free(path); - return false; -} - - - - -bool ro_plot_clip(const struct rect *clip) -{ - os_error *error; - char buf[12]; - - int clip_x0 = ro_plot_origin_x + clip->x0 * 2; - int clip_y0 = ro_plot_origin_y - clip->y0 * 2 - 1; - int clip_x1 = ro_plot_origin_x + clip->x1 * 2 - 1; - int clip_y1 = ro_plot_origin_y - clip->y1 * 2; - - if (clip_x1 < clip_x0 || clip_y0 < clip_y1) { - LOG("bad clip rectangle %i %i %i %i", clip_x0, clip_y0, clip_x1, clip_y1); - return false; - } - - buf[0] = os_VDU_SET_GRAPHICS_WINDOW; - buf[1] = clip_x0; - buf[2] = clip_x0 >> 8; - buf[3] = clip_y1; - buf[4] = clip_y1 >> 8; - buf[5] = clip_x1; - buf[6] = clip_x1 >> 8; - buf[7] = clip_y0; - buf[8] = clip_y0 >> 8; - - error = xos_writen(buf, 9); - if (error) { - LOG("xos_writen: 0x%x: %s", error->errnum, error->errmess); - return false; - } - - return true; -} - - -bool ro_plot_text(int x, int y, const char *text, size_t length, - const plot_font_style_t *fstyle) -{ - os_error *error; - - error = xcolourtrans_set_font_colours(font_CURRENT, - fstyle->background << 8, fstyle->foreground << 8, - 14, 0, 0, 0); - if (error) { - LOG("xcolourtrans_set_font_colours: 0x%x: %s", error->errnum, error->errmess); - return false; - } - - return nsfont_paint(fstyle, text, length, - ro_plot_origin_x + x * 2, - ro_plot_origin_y - y * 2); -} - - -bool ro_plot_disc(int x, int y, int radius, const plot_style_t *style) -{ - os_error *error; - if (style->fill_type != PLOT_OP_TYPE_NONE) { - error = xcolourtrans_set_gcol(style->fill_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 * 2, 0); - if (error) { - LOG("xos_plot: 0x%x: %s", error->errnum, error->errmess); - return false; - } - } - - if (style->stroke_type != PLOT_OP_TYPE_NONE) { - - error = xcolourtrans_set_gcol(style->stroke_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_OUTLINE | os_PLOT_BY, - radius * 2, 0); - - if (error) { - LOG("xos_plot: 0x%x: %s", error->errnum, error->errmess); - return false; - } - } - return true; -} - -bool ro_plot_arc(int x, int y, int radius, int angle1, int angle2, const plot_style_t *style) -{ - os_error *error; - int sx, sy, ex, ey; - double t; - - x = ro_plot_origin_x + x * 2; - y = ro_plot_origin_y - y * 2; - radius <<= 1; - - error = xcolourtrans_set_gcol(style->fill_colour << 8, 0, - os_ACTION_OVERWRITE, 0, 0); - - if (error) { - LOG("xcolourtrans_set_gcol: 0x%x: %s", error->errnum, error->errmess); - return false; - } - - t = ((double)angle1 * M_PI) / 180.0; - sx = (x + (int)(radius * cos(t))); - sy = (y + (int)(radius * sin(t))); - - t = ((double)angle2 * M_PI) / 180.0; - ex = (x + (int)(radius * cos(t))); - ey = (y + (int)(radius * sin(t))); - - error = xos_plot(os_MOVE_TO, x, y); /* move to centre */ - if (error) { - LOG("xos_plot: 0x%x: %s", error->errnum, error->errmess); - return false; - } - - error = xos_plot(os_MOVE_TO, sx, sy); /* move to start */ - if (error) { - LOG("xos_plot: 0x%x: %s", error->errnum, error->errmess); - return false; - } - - error = xos_plot(os_PLOT_ARC | os_PLOT_TO, ex, ey); /* arc to end */ - 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, - bitmap_flags_t flags) -{ - const uint8_t *buffer; - - buffer = riscos_bitmap_get_buffer(bitmap); - if (!buffer) { - LOG("bitmap_get_buffer failed"); - return false; - } - - 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, - flags & BITMAPF_REPEAT_X, flags & BITMAPF_REPEAT_Y, - flags & BITMAPF_REPEAT_X || flags & BITMAPF_REPEAT_Y, - riscos_bitmap_get_opaque(bitmap) ? IMAGE_PLOT_TINCT_OPAQUE : - IMAGE_PLOT_TINCT_ALPHA); -} |