From 3f5d902edd65ed2201f12914bc555872d3f45eb1 Mon Sep 17 00:00:00 2001 From: Daniel Silverstone Date: Tue, 23 Sep 2008 14:00:40 +0000 Subject: Merged revisions 5309-5406,5409-5422 via svnmerge from svn://svn.netsurf-browser.org/branches/vince/netsurf-fb ........ r5309 | vince | 2008-09-13 10:59:10 +0100 (Sat, 13 Sep 2008) | 2 lines first stab at framebuffer frontend ........ r5313 | vince | 2008-09-14 15:08:52 +0100 (Sun, 14 Sep 2008) | 2 lines add line plotters ........ r5314 | vince | 2008-09-14 15:28:12 +0100 (Sun, 14 Sep 2008) | 2 lines add rectangle plot to 16bpp plotters ........ r5315 | vince | 2008-09-14 19:58:57 +0100 (Sun, 14 Sep 2008) | 2 lines improve 16bpp image plot ........ r5316 | vince | 2008-09-15 00:35:32 +0100 (Mon, 15 Sep 2008) | 2 lines abstract the os specific framebuffer init ........ r5317 | vince | 2008-09-15 11:18:51 +0100 (Mon, 15 Sep 2008) | 2 lines first cut of linux frontend ........ r5318 | vince | 2008-09-15 12:01:00 +0100 (Mon, 15 Sep 2008) | 2 lines remove junk includes ........ r5319 | vince | 2008-09-15 12:09:02 +0100 (Mon, 15 Sep 2008) | 2 lines make plotters OS agnostic again ........ r5322 | vince | 2008-09-15 15:55:01 +0100 (Mon, 15 Sep 2008) | 2 lines Linux frontend operates ........ r5323 | vince | 2008-09-15 16:32:47 +0100 (Mon, 15 Sep 2008) | 2 lines abstract out OS specific input ........ r5326 | vince | 2008-09-15 19:21:01 +0100 (Mon, 15 Sep 2008) | 2 lines Improve linux mode setting ........ r5329 | vince | 2008-09-15 21:13:33 +0100 (Mon, 15 Sep 2008) | 2 lines improve text clipping ........ r5339 | vince | 2008-09-16 00:07:57 +0100 (Tue, 16 Sep 2008) | 2 lines possibly fix text clipping issue ........ r5342 | vince | 2008-09-16 00:39:36 +0100 (Tue, 16 Sep 2008) | 2 lines consolidate polygon plotters ........ r5344 | dsilvers | 2008-09-16 10:21:06 +0100 (Tue, 16 Sep 2008) | 1 line Fix up the framebuffer target makefile a bit more, add some config options for it ........ r5345 | dsilvers | 2008-09-16 10:22:19 +0100 (Tue, 16 Sep 2008) | 1 line Ensure the appropriate frontend is selected when building framebuffer ........ r5346 | dsilvers | 2008-09-16 10:27:16 +0100 (Tue, 16 Sep 2008) | 1 line Update build system to support targetting separate framebuffer frontends in different build trees, update executable to be nsfb-blah ........ r5350 | vince | 2008-09-16 17:15:04 +0100 (Tue, 16 Sep 2008) | 1 line Add -g to provide symbols for framebuffer link ........ r5351 | vince | 2008-09-16 17:17:09 +0100 (Tue, 16 Sep 2008) | 1 line framebuffer scheduler now works, plotters tweaked, gui tracks window redraw requirements better, keypresses not duplicated under linux fb ........ r5352 | dsilvers | 2008-09-16 17:38:53 +0100 (Tue, 16 Sep 2008) | 1 line Ensure we only allow one fetcher at a time ........ r5361 | vince | 2008-09-17 11:48:44 +0100 (Wed, 17 Sep 2008) | 2 lines initial cursor support ........ r5362 | vince | 2008-09-17 13:56:47 +0100 (Wed, 17 Sep 2008) | 2 lines add mouse handling ........ r5363 | vince | 2008-09-17 14:14:44 +0100 (Wed, 17 Sep 2008) | 2 lines add framebuffer resources ........ r5364 | vince | 2008-09-17 17:12:21 +0100 (Wed, 17 Sep 2008) | 2 lines add reasonable pointer ........ r5366 | vince | 2008-09-17 17:17:25 +0100 (Wed, 17 Sep 2008) | 2 lines fix pointer alpha ........ r5370 | vince | 2008-09-18 13:43:53 +0100 (Thu, 18 Sep 2008) | 2 lines warning squash and cleanup ready for trunk merge ........ r5375 | vince | 2008-09-19 14:58:43 +0100 (Fri, 19 Sep 2008) | 2 lines Working mouse navigation ........ r5377 | vince | 2008-09-20 14:06:22 +0100 (Sat, 20 Sep 2008) | 2 lines Improve scrolling ........ r5378 | vince | 2008-09-20 14:46:46 +0100 (Sat, 20 Sep 2008) | 2 lines fix redraw issues with scrolling ........ r5380 | vince | 2008-09-20 17:08:43 +0100 (Sat, 20 Sep 2008) | 3 lines Alter panning to use its own flag so it doesnt cause invalid redraw operations ........ r5381 | vince | 2008-09-20 21:52:45 +0100 (Sat, 20 Sep 2008) | 2 lines add dummy framebuffer ........ r5383 | vince | 2008-09-21 00:00:15 +0100 (Sun, 21 Sep 2008) | 2 lines fix segfault when cursor is off teh bottom of teh screen ........ r5384 | vince | 2008-09-21 00:06:08 +0100 (Sun, 21 Sep 2008) | 2 lines fix off by one in pointer fix ........ r5385 | vince | 2008-09-21 00:25:09 +0100 (Sun, 21 Sep 2008) | 2 lines when fixing bloody silly off by one errors remember to fix *both* references ........ r5387 | vince | 2008-09-21 00:38:13 +0100 (Sun, 21 Sep 2008) | 2 lines last try at stopping the pointer segfault ........ r5388 | vince | 2008-09-21 16:24:18 +0100 (Sun, 21 Sep 2008) | 2 lines improve vertical text clipping ........ r5392 | vince | 2008-09-21 23:11:51 +0100 (Sun, 21 Sep 2008) | 2 lines Improve text plotters ........ r5393 | vince | 2008-09-21 23:34:38 +0100 (Sun, 21 Sep 2008) | 2 lines fix 32bpp line plotting ........ r5394 | vince | 2008-09-22 00:00:03 +0100 (Mon, 22 Sep 2008) | 2 lines Fix off by one error in line plotting clipping ........ r5397 | vince | 2008-09-22 13:46:22 +0100 (Mon, 22 Sep 2008) | 2 lines Fix bitmap tileing ........ r5398 | vince | 2008-09-22 17:46:02 +0100 (Mon, 22 Sep 2008) | 2 lines enable knockout renderer ........ r5399 | vince | 2008-09-22 18:43:48 +0100 (Mon, 22 Sep 2008) | 2 lines ensure clipping region lies within window, caused by knockout renderer ........ r5400 | vince | 2008-09-22 19:20:25 +0100 (Mon, 22 Sep 2008) | 2 lines update cursor to one swiped from X windows ........ r5405 | vince | 2008-09-23 09:09:05 +0100 (Tue, 23 Sep 2008) | 2 lines fix vertical scroll limit ........ r5412 | dsilvers | 2008-09-23 10:53:14 +0100 (Tue, 23 Sep 2008) | 1 line Revert noisy fetcher patch ........ r5413 | dsilvers | 2008-09-23 10:58:00 +0100 (Tue, 23 Sep 2008) | 1 line Add header guards ........ r5414 | dsilvers | 2008-09-23 11:31:31 +0100 (Tue, 23 Sep 2008) | 1 line Tidy the region clipping slightly ........ r5416 | dsilvers | 2008-09-23 12:05:00 +0100 (Tue, 23 Sep 2008) | 1 line Rationalise how the framebuffer frontend finds resources and options ........ r5418 | dsilvers | 2008-09-23 13:59:00 +0100 (Tue, 23 Sep 2008) | 1 line Ensure options are overridden after load, and squash an fb_gui.c warning ........ r5419 | dsilvers | 2008-09-23 14:20:07 +0100 (Tue, 23 Sep 2008) | 1 line Support fb_mode and fb_device options ........ r5420 | dsilvers | 2008-09-23 14:21:48 +0100 (Tue, 23 Sep 2008) | 1 line Support option_fb_device in the able frontend ........ r5421 | dsilvers | 2008-09-23 14:25:17 +0100 (Tue, 23 Sep 2008) | 1 line Ensure target_blank is disabled ........ r5422 | dsilvers | 2008-09-23 14:39:00 +0100 (Tue, 23 Sep 2008) | 1 line Rework linux fb frontend to support scanning and opening all event devices for input ........ svn path=/trunk/netsurf/; revision=5423 --- framebuffer/fb_16bpp_plotters.c | 418 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 418 insertions(+) create mode 100644 framebuffer/fb_16bpp_plotters.c (limited to 'framebuffer/fb_16bpp_plotters.c') diff --git a/framebuffer/fb_16bpp_plotters.c b/framebuffer/fb_16bpp_plotters.c new file mode 100644 index 000000000..1faa66e61 --- /dev/null +++ b/framebuffer/fb_16bpp_plotters.c @@ -0,0 +1,418 @@ +/* + * Copyright 2008 Vincent Sanders + * + * 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 . + */ + +#include +#include +#include +#include + +#include "utils/log.h" +#include "utils/utf8.h" +#include "desktop/plotters.h" + +#include "framebuffer/fb_gui.h" +#include "framebuffer/fb_plotters.h" +#include "framebuffer/fb_bitmap.h" +#include "framebuffer/fb_font.h" + +static inline uint16_t * +fb_16bpp_get_xy_loc(int x, int y) +{ + return (void *)(framebuffer->ptr + + (y * framebuffer->linelen) + + (x << 1)); +} + + +#define SIGN(x) ((x<0) ? -1 : ((x>0) ? 1 : 0)) + +static bool fb_16bpp_line(int x0, int y0, int x1, int y1, int width, + colour c, bool dotted, bool dashed) +{ + int w; + uint16_t ent; + uint16_t *pvideo; + + int x, y, i; + int dx, dy, sdy; + int dxabs, dyabs; + + /*LOG(("%d, %d, %d, %d, %d, 0x%lx, %d, %d", + x0,y0,x1,y1,width,c,dotted,dashed));*/ + + if (y1 > fb_plot_ctx.y1) + return true; + if (y0 < fb_plot_ctx.y0) + return true; + + ent = ((c & 0xF8) << 8) | + ((c & 0xFC00 ) >> 5) | + ((c & 0xF80000) >> 19); + + if (y0 == y1) { + /* horizontal line special cased */ + fb_plotters_clip_rect_ctx(&x0, &y0, &x1, &y1); + + /*LOG(("horiz: %d, %d, %d, %d, %d, 0x%lx, %d, %d", + x0,y0,x1,y1,width,c,dotted,dashed));*/ + + pvideo = fb_16bpp_get_xy_loc(x0, y0); + + w = x1 - x0; + while (w-- > 0) { + *(pvideo + w) = ent; + } + return true; + } else { + /* standard bresenham line */ + if (!fb_plotters_clip_line_ctx(&x0, &y0, &x1, &y1)) + return true; /* line outside clipping */ + + //LOG(("%d, %d, %d, %d", x0,y0,x1,y1)); + + /* the horizontal distance of the line */ + dx = x1 - x0; + dxabs = abs (dx); + + /* the vertical distance of the line */ + dy = y1 - y0; + dyabs = abs (dy); + + sdy = dx ? SIGN(dy) * SIGN(dx) : SIGN(dy); + + if (dx >= 0) + pvideo = fb_16bpp_get_xy_loc(x0, y0); + else + pvideo = fb_16bpp_get_xy_loc(x1, y1); + + x = dyabs >> 1; + y = dxabs >> 1; + + if (dxabs >= dyabs) { + /* the line is more horizontal than vertical */ + for (i = 0; i <= dxabs; i++) { + *pvideo = ent; + + pvideo++; + y += dyabs; + if (y >= dxabs) { + y -= dxabs; + pvideo += sdy * (framebuffer->linelen>>1); + } + } + } else { + /* the line is more vertical than horizontal */ + for (i = 0; i <= dyabs; i++) { + *pvideo = ent; + pvideo += sdy * (framebuffer->linelen >> 1); + + x += dxabs; + if (x >= dyabs) { + x -= dyabs; + pvideo++; + } + } + } + + } + + + + return true; +} + +static bool fb_16bpp_rectangle(int x0, int y0, int width, int height, + int line_width, colour c, bool dotted, bool dashed) +{ + fb_16bpp_line(x0, y0, x0 + width, y0, line_width, c, dotted, dashed); + fb_16bpp_line(x0, y0 + height, x0 + width, y0 + height, line_width, c, dotted, dashed); + fb_16bpp_line(x0, y0, x0, y0 + height, line_width, c, dotted, dashed); + fb_16bpp_line(x0 + width, y0, x0 + width, y0 + height, line_width, c, dotted, dashed); + return true; +} + +static bool fb_16bpp_polygon(int *p, unsigned int n, colour fill) +{ + return fb_plotters_polygon(p, n, fill, fb_16bpp_line); +} + + +static bool fb_16bpp_fill(int x0, int y0, int x1, int y1, colour c) +{ + int w; + int y; + uint16_t ent; + uint16_t *pvideo; + + if (!fb_plotters_clip_rect_ctx(&x0, &y0, &x1, &y1)) + return true; /* fill lies outside current clipping region */ + + ent = ((c & 0xF8) << 8) | + ((c & 0xFC00 ) >> 5) | + ((c & 0xF80000) >> 19); + + pvideo = fb_16bpp_get_xy_loc(x0, y0); + + for (y = y0; y < y1; y++) { + w = x1 - x0; + while (w-- > 0) { + *(pvideo + w) = ent; + } + pvideo += (framebuffer->linelen >> 1); + } + + return true; +} + +static bool fb_16bpp_clg(colour c) +{ + /* LOG(("c %lx", c)); */ + fb_16bpp_fill(fb_plot_ctx.x0, + fb_plot_ctx.y0, + fb_plot_ctx.x1, + fb_plot_ctx.y1, + c); + return true; +} + + +static bool fb_16bpp_text(int x, int y, const struct css_style *style, + const char *text, size_t length, colour bg, colour c) +{ + const struct fb_font_desc* fb_font = fb_get_font(style); + const uint32_t *font_data; + int xloop, yloop; + uint32_t row; + size_t chr; + + uint16_t *pvideo; + uint16_t fgcol; + uint16_t bgcol; + + char *buffer = NULL; + int x0,y0,x1,y1; + int xoff, yoff; /* x and y offset into image */ + int height = fb_font->height; + + /* aquire thge text in local font encoding */ + utf8_to_font_encoding(fb_font, text, length, &buffer); + if (!buffer) + return true; + length = strlen(buffer); + + + /* y is given to the fonts baseline we need it to the fonts top */ + y-=((fb_font->height * 75)/100); + + y+=1; /* the coord is the bottom-left of the pixels offset by 1 to make + * it work since fb coords are the top-left of pixels + */ + + /* The part of the text displayed is cropped to the current context. */ + x0 = x; + y0 = y; + x1 = x + (fb_font->width * length); + y1 = y + fb_font->height; + + if (!fb_plotters_clip_rect_ctx(&x0, &y0, &x1, &y1)) + return true; /* text lies outside current clipping region */ + + /* find width and height to plot */ + if (height > (y1 - y0)) + height = (y1 - y0); + + xoff = x0 - x; + yoff = y0 - y; + + fgcol = ((c & 0xF8) << 8) | + ((c & 0xFC00 ) >> 5) | + ((c & 0xF80000) >> 19); + + bgcol = ((bg & 0xF8) << 8) | + ((bg & 0xFC00 ) >> 5) | + ((bg & 0xF80000) >> 19); + + + /*LOG(("x %d, y %d, style %p, txt %.*s , len %d, bg 0x%lx, fg 0x%lx", + x,y,style,length,text,length,bg,c));*/ + + for (chr = 0; chr < length; chr++, x += fb_font->width) { + if ((x + fb_font->width) > x1) + break; + + if (x < x0) + continue; + + pvideo = fb_16bpp_get_xy_loc(x, y0); + + /* move our font-data to the correct position */ + font_data = fb_font->data + (buffer[chr] * fb_font->height); + + for (yloop = 0; yloop < height; yloop++) { + row = font_data[yoff + yloop]; + for (xloop = fb_font->width; xloop > 0 ; xloop--) { + if ((row & 1) != 0) + *(pvideo + xloop) = fgcol; + row = row >> 1; + } + pvideo += (framebuffer->linelen >> 1); + } + } + + free(buffer); + return true; +} + +static bool fb_16bpp_disc(int x, int y, int radius, colour c, bool filled) +{ + LOG(("x %d, y %d, r %d, c 0x%lx, fill %d", + x, y, radius, c, filled)); + + return true; +} + +static bool fb_16bpp_arc(int x, int y, int radius, int angle1, int angle2, + colour c) +{ + LOG(("x %d, y %d, r %d, a1 %d, a2 %d, c 0x%lx", + x, y, radius, angle1, angle2, c)); + return true; +} + +static inline colour fb_16bpp_to_colour(uint16_t pixel) +{ + return ((pixel & 0x1F) << 19) | + ((pixel & 0x7E0) << 5) | + ((pixel & 0xF800) >> 8); +} + +static bool fb_16bpp_bitmap(int x, int y, int width, int height, + struct bitmap *bitmap, colour bg, + struct content *content) +{ + uint16_t *pvideo; + colour *pixel = (colour *)bitmap->pixdata; + colour abpixel; /* alphablended pixel */ + int xloop, yloop; + int x0,y0,x1,y1; + int xoff, yoff; /* x and y offset into image */ + + /* LOG(("x %d, y %d, width %d, height %d, bitmap %p, content %p", + x,y,width,height,bitmap,content));*/ + + /* TODO here we should scale the image from bitmap->width to width, for + * now simply crop. + */ + if (width > bitmap->width) + width = bitmap->width; + + if (height > bitmap->height) + height = bitmap->height; + + /* The part of the scaled image actually displayed is cropped to the + * current context. + */ + x0 = x; + y0 = y; + x1 = x + width; + y1 = y + height; + + if (!fb_plotters_clip_rect_ctx(&x0, &y0, &x1, &y1)) + return true; + + if (height > (y1 - y0)) + height = (y1 - y0); + + if (width > (x1 - x0)) + width = (x1 - x0); + + xoff = x0 - x; + yoff = y0 - y; + + /* plot the image */ + pvideo = fb_16bpp_get_xy_loc(x0, y0); + + for (yloop = 0; yloop < height; yloop++) { + for (xloop = 0; xloop < width; xloop++) { + abpixel = pixel[((yoff + yloop) * bitmap->width) + xloop + xoff]; + if ((abpixel & 0xFF000000) != 0) { + if ((abpixel & 0xFF000000) != 0xFF) { + abpixel = fb_plotters_ablend(abpixel, + fb_16bpp_to_colour(*(pvideo + xloop))); + } + + *(pvideo + xloop) = + ((abpixel & 0xF8) << 8) | + ((abpixel & 0xFC00 ) >> 5) | + ((abpixel & 0xF80000) >> 19); + + } + } + pvideo += (framebuffer->linelen >> 1); + } + + return true; +} + +static bool fb_16bpp_bitmap_tile(int x, int y, int width, int height, + struct bitmap *bitmap, colour bg, + bool repeat_x, bool repeat_y, + struct content *content) +{ + return fb_plotters_bitmap_tile(x, y, width, height, + bitmap, bg, repeat_x, repeat_y, + content, fb_16bpp_bitmap); +} + +static bool fb_16bpp_flush(void) +{ + LOG(("optional")); + return true; +} + +static bool fb_16bpp_path(float *p, unsigned int n, colour fill, float width, + colour c, float *transform) +{ + LOG(("%f, %d, 0x%lx, %f, 0x%lx, %f", + *p, n, fill, width, c, *transform)); + return true; +} + + +const struct plotter_table framebuffer_16bpp_plot = { + .clg = fb_16bpp_clg, + .rectangle = fb_16bpp_rectangle, + .line = fb_16bpp_line, + .polygon = fb_16bpp_polygon, + .fill = fb_16bpp_fill, + .clip = fb_clip, + .text = fb_16bpp_text, + .disc = fb_16bpp_disc, + .arc = fb_16bpp_arc, + .bitmap = fb_16bpp_bitmap, + .bitmap_tile = fb_16bpp_bitmap_tile, + .flush = fb_16bpp_flush, + .path = fb_16bpp_path, + .option_knockout = true, +}; + +/* + * Local Variables: + * c-basic-offset:8 + * End: + */ -- cgit v1.2.3