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author | Richard Wilson <rjw@netsurf-browser.org> | 2005-03-14 13:58:43 +0000 |
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committer | Richard Wilson <rjw@netsurf-browser.org> | 2005-03-14 13:58:43 +0000 |
commit | 501da1c487f04fbbe04c3cc2a130a4583621681c (patch) | |
tree | 0246ee27f677f9dfd494018f070926159b674b39 /riscos/window.c | |
parent | 950d8e27a041119009bede022cb5a2502131a94b (diff) | |
download | netsurf-501da1c487f04fbbe04c3cc2a130a4583621681c.tar.gz netsurf-501da1c487f04fbbe04c3cc2a130a4583621681c.tar.bz2 |
[project @ 2005-03-14 13:58:43 by rjw]
Minimise flicker when viewing non-HTML files.
svn path=/import/netsurf/; revision=1535
Diffstat (limited to 'riscos/window.c')
-rw-r--r-- | riscos/window.c | 114 |
1 files changed, 82 insertions, 32 deletions
diff --git a/riscos/window.c b/riscos/window.c index 82a041d95..90ef2df42 100644 --- a/riscos/window.c +++ b/riscos/window.c @@ -438,31 +438,62 @@ void ro_gui_window_redraw(struct gui_window *g, wimp_draw *redraw) { osbool more; bool clear_background = false; + bool clear_partial = false; float scale = 1; struct content *c = g->bw->current_content; int clip_x0, clip_y0, clip_x1, clip_y1; + int content_y1, content_x1; os_error *error; + osspriteop_area *area; + osspriteop_header *header; + + /* Handle no content quickly + */ + if (!c) { + ro_gui_user_redraw(redraw, true, os_COLOUR_WHITE); + return; + } plot = ro_plotters; ro_plot_set_scale(g->option.scale); - - /* Set the current redraw gui_window to get options from - */ ro_gui_current_redraw_gui = g; /* We should clear the background, except for HTML. */ - if (!c) { - clear_background = true; - } else { - switch (c->type) { - case CONTENT_HTML: - break; - default: - clear_background = true; - scale = g->option.scale; - break; - } + switch (c->type) { + case CONTENT_HTML: + break; + case CONTENT_CSS: + case CONTENT_TEXTPLAIN: +#ifdef WITH_JPEG + case CONTENT_JPEG: +#endif + clear_partial = true; + clear_background = true; + scale = g->option.scale; + break; + + +#ifdef WITH_SPRITE + case CONTENT_SPRITE: + area = (osspriteop_area *)c->data.sprite.data; + header = (osspriteop_header *)((char*)area + area->first); + clear_partial = (header->image) == (header->mask); +#endif +#ifdef WITH_GIF + case CONTENT_GIF: +#endif +#ifdef WITH_MNG + case CONTENT_JNG: + case CONTENT_MNG: + case CONTENT_PNG: +#endif + if (c->bitmap) + clear_partial = bitmap_get_opaque(c->bitmap); + default: + clear_background = true; + scale = g->option.scale; + break; } error = xwimp_redraw_window(redraw, &more); @@ -473,8 +504,16 @@ void ro_gui_window_redraw(struct gui_window *g, wimp_draw *redraw) return; } while (more) { + ro_plot_origin_x = redraw->box.x0 - redraw->xscroll; + ro_plot_origin_y = redraw->box.y1 - redraw->yscroll; + clip_x0 = (redraw->clip.x0 - ro_plot_origin_x) / 2; + clip_y0 = (ro_plot_origin_y - redraw->clip.y1) / 2; + clip_x1 = (redraw->clip.x1 - ro_plot_origin_x) / 2; + clip_y1 = (ro_plot_origin_y - redraw->clip.y0) / 2; + if (ro_gui_current_redraw_gui->option.buffer_everything) ro_gui_buffer_open(redraw); + if (clear_background) { error = xcolourtrans_set_gcol(os_COLOUR_WHITE, colourtrans_SET_BG, @@ -484,24 +523,39 @@ void ro_gui_window_redraw(struct gui_window *g, wimp_draw *redraw) error->errnum, error->errmess)); warn_user("MiscError", error->errmess); } - os_clg(); + if (clear_partial) { + content_x1 = ro_plot_origin_x + c->width * 2 * scale; + content_y1 = ro_plot_origin_y - c->height * 2 * scale; + if (content_y1 > redraw->clip.y0) { + xos_plot(os_MOVE_TO, + ro_plot_origin_x, + content_y1); + xos_plot(os_PLOT_BG_TO | os_PLOT_RECTANGLE, + redraw->clip.x1, + redraw->clip.y0); + } + if (content_x1 < redraw->clip.x1) { + xos_plot(os_MOVE_TO, + content_x1, + ro_plot_origin_y); + xos_plot(os_PLOT_BG_TO | os_PLOT_RECTANGLE, + redraw->clip.x1, + content_y1); + } + } else { + os_clg(); + } } - if (c) { - ro_plot_origin_x = redraw->box.x0 - redraw->xscroll; - ro_plot_origin_y = redraw->box.y1 - redraw->yscroll; - clip_x0 = (redraw->clip.x0 - ro_plot_origin_x) / 2; - clip_y0 = (ro_plot_origin_y - redraw->clip.y1) / 2; - clip_x1 = (redraw->clip.x1 - ro_plot_origin_x) / 2; - clip_y1 = (ro_plot_origin_y - redraw->clip.y0) / 2; - content_redraw(c, 0, 0, - c->width * scale, c->height * scale, - clip_x0, clip_y0, clip_x1, clip_y1, - g->option.scale, - 0xFFFFFF); - } + content_redraw(c, 0, 0, + c->width * scale, c->height * scale, + clip_x0, clip_y0, clip_x1, clip_y1, + g->option.scale, + 0xFFFFFF); + if (ro_gui_current_redraw_gui->option.buffer_everything) ro_gui_buffer_close(); + error = xwimp_get_rectangle(redraw, &more); /* RISC OS 3.7 returns an error here if enough buffer was claimed to cause a new dynamic area to be created. It @@ -518,10 +572,6 @@ void ro_gui_window_redraw(struct gui_window *g, wimp_draw *redraw) return; } } - - /* Reset the current redraw gui_window to prevent thumbnails from - retaining options - */ ro_gui_current_redraw_gui = NULL; } |