diff options
Diffstat (limited to 'framebuffer/fb_32bpp_plotters.c')
-rw-r--r-- | framebuffer/fb_32bpp_plotters.c | 613 |
1 files changed, 0 insertions, 613 deletions
diff --git a/framebuffer/fb_32bpp_plotters.c b/framebuffer/fb_32bpp_plotters.c deleted file mode 100644 index 5b02bd26f..000000000 --- a/framebuffer/fb_32bpp_plotters.c +++ /dev/null @@ -1,613 +0,0 @@ -/* - * Copyright 2008 Vincent Sanders <vince@simtec.co.uk> - * - * 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/>. - */ - -#include <sys/types.h> -#include <stdint.h> -#include <string.h> -#include <limits.h> - -#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 uint32_t * -fb_32bpp_get_xy_loc(int x, int y) -{ - return (uint32_t *)(framebuffer->ptr + - (y * framebuffer->linelen) + - (x << 2)); -} - -#if __BYTE_ORDER == __BIG_ENDIAN -static inline colour fb_32bpp_to_colour(uint32_t pixel) -{ - return (pixel >> 8) & ~0xFF000000U; -} - -/* convert a colour value to a 32bpp pixel value ready for screen output */ -static inline uint32_t fb_colour_to_pixel(colour c) -{ - return (c << 8); -} -#else -static inline colour fb_32bpp_to_colour(uint32_t pixel) -{ - return ((pixel & 0xFF) << 16) | - ((pixel & 0xFF00)) | - ((pixel & 0xFF0000) >> 16); -} - -/* convert a colour value to a 32bpp pixel value ready for screen output */ -static inline uint32_t fb_colour_to_pixel(colour c) -{ - return ((c & 0xff0000) >> 16) | (c & 0xff00) | ((c & 0xff) << 16); -} -#endif - -#define SIGN(x) ((x<0) ? -1 : ((x>0) ? 1 : 0)) - -static bool fb_32bpp_line(int x0, int y0, int x1, int y1, int width, - colour c, bool dotted, bool dashed) -{ - int w; - uint32_t ent; - uint32_t *pvideo; - - int x, y, i; - int dx, dy, sdy; - int dxabs, dyabs; - - if (y1 > fb_plot_ctx.y1) - return true; - if (y0 < fb_plot_ctx.y0) - return true; - - ent = fb_colour_to_pixel(c); - - if (y0 == y1) { - /* horizontal line special cased */ - if (!fb_plotters_clip_rect_ctx(&x0, &y0, &x1, &y1)) - return true; /* line outside clipping */ - - pvideo = fb_32bpp_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 */ - - /* 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_32bpp_get_xy_loc(x0, y0); - else - pvideo = fb_32bpp_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>>2); - } - } - } else { - /* the line is more vertical than horizontal */ - for (i = 0; i < dyabs; i++) { - *pvideo = ent; - pvideo += sdy * (framebuffer->linelen >> 2); - - x += dxabs; - if (x >= dyabs) { - x -= dyabs; - pvideo++; - } - } - } - - } - - return true; -} - -static bool fb_32bpp_rectangle(int x0, int y0, int width, int height, - int line_width, colour c, bool dotted, bool dashed) -{ - fb_32bpp_line(x0, y0, x0 + width, y0, line_width, c, dotted, dashed); - fb_32bpp_line(x0, y0 + height, x0 + width, y0 + height, line_width, c, dotted, dashed); - fb_32bpp_line(x0, y0, x0, y0 + height, line_width, c, dotted, dashed); - fb_32bpp_line(x0 + width, y0, x0 + width, y0 + height, line_width, c, dotted, dashed); - return true; -} - - -static bool fb_32bpp_polygon(const int *p, unsigned int n, colour fill) -{ - return fb_plotters_polygon(p, n, fill, fb_32bpp_line); -} - - - - -static bool fb_32bpp_fill(int x0, int y0, int x1, int y1, colour c) -{ - int w; - uint32_t *pvid; - uint32_t ent; - uint32_t llen; - uint32_t width; - uint32_t height; - - if (!fb_plotters_clip_rect_ctx(&x0, &y0, &x1, &y1)) - return true; /* fill lies outside current clipping region */ - - ent = fb_colour_to_pixel(c); - width = x1 - x0; - height = y1 - y0; - llen = (framebuffer->linelen >> 2) - width; - - pvid = fb_32bpp_get_xy_loc(x0, y0); - - while (height-- > 0) { - w = width; - while (w >= 16) { - *pvid++ = ent; *pvid++ = ent; - *pvid++ = ent; *pvid++ = ent; - *pvid++ = ent; *pvid++ = ent; - *pvid++ = ent; *pvid++ = ent; - *pvid++ = ent; *pvid++ = ent; - *pvid++ = ent; *pvid++ = ent; - *pvid++ = ent; *pvid++ = ent; - *pvid++ = ent; *pvid++ = ent; - w-=16; - } - while (w >= 4) { - *pvid++ = ent; *pvid++ = ent; - *pvid++ = ent; *pvid++ = ent; - w-=4; - } - while (w > 0) { - *pvid++ = ent; - w--; - } - pvid += llen; - } - - return true; -} - -static bool fb_32bpp_clg(colour c) -{ - fb_32bpp_fill(fb_plot_ctx.x0, - fb_plot_ctx.y0, - fb_plot_ctx.x1, - fb_plot_ctx.y1, - c); - return true; -} - -#ifdef FB_USE_FREETYPE - - -static bool -fb_32bpp_draw_ft_monobitmap(FT_Bitmap *bp, int x, int y, colour c) -{ - int height = bp->rows; - int width = bp->width; - uint32_t row = 0; - int xloop, yloop; - - uint32_t *pvideo; - uint32_t fgcol; - - int x0,y0,x1,y1; - int xoff, yoff; /* x and y offset into image */ - - unsigned char *fntd; - - if (width == 0) { - LOG(("null width char!")); - return false; - } - - - 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 + width; - y1 = y + 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); - - if (width > (x1 - x0)) - width = (x1 - x0); - - xoff = x0 - x; - yoff = y0 - y; - - fgcol = fb_colour_to_pixel(c); - - pvideo = fb_32bpp_get_xy_loc(x, y0); - - for (yloop = yoff; yloop < height; yloop++) { - fntd = bp->buffer + (yloop * bp->pitch); - for (xloop = 0; xloop < width ; xloop++) { - if ((xloop % 8) == 0) { - row = *fntd++; - } - - if ((row & 0x80) != 0) { - *(pvideo + xloop) = fgcol; - } - row = row << 1; - } - - pvideo += (framebuffer->linelen >> 2); - } - - - return true; -} - -static bool -fb_32bpp_draw_ft_bitmap(FT_Bitmap *bp, int x, int y, colour c) -{ - uint32_t *pvideo; - uint8_t *pixel = (uint8_t *)bp->buffer; - colour abpixel; /* alphablended pixel */ - int xloop, yloop; - int x0,y0,x1,y1; - int xoff, yoff; /* x and y offset into image */ - int height = bp->rows; - int width = bp->width; - uint32_t fgcol; - - /* 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_32bpp_get_xy_loc(x0, y0); - - fgcol = c & 0xFFFFFF; - - for (yloop = 0; yloop < height; yloop++) { - for (xloop = 0; xloop < width; xloop++) { - abpixel = (pixel[((yoff + yloop) * bp->pitch) + xloop + xoff] << 24) | fgcol; - if ((abpixel & 0xFF000000) != 0) { - /* pixel is not transparent */ - if ((abpixel & 0xFF000000) != 0xFF000000) { - abpixel = fb_plotters_ablend(abpixel, - fb_32bpp_to_colour(*(pvideo + xloop))); - } - - *(pvideo + xloop) = fb_colour_to_pixel(abpixel); - } - } - pvideo += (framebuffer->linelen >> 2); - } - - return true; -} - -static bool fb_32bpp_text(int x, int y, const struct css_style *style, - const char *text, size_t length, colour bg, colour c) -{ - uint32_t ucs4; - size_t nxtchr = 0; - FT_Glyph glyph; - FT_BitmapGlyph bglyph; - - while (nxtchr < length) { - ucs4 = utf8_to_ucs4(text + nxtchr, length - nxtchr); - nxtchr = utf8_next(text, length, nxtchr); - - glyph = fb_getglyph(style, ucs4); - if (glyph == NULL) - continue; - - if (glyph->format == FT_GLYPH_FORMAT_BITMAP) { - bglyph = (FT_BitmapGlyph)glyph; - - /* now, draw to our target surface */ - if (bglyph->bitmap.pixel_mode == FT_PIXEL_MODE_MONO) { - fb_32bpp_draw_ft_monobitmap(&bglyph->bitmap, - x + bglyph->left, - y - bglyph->top, - c); - } else { - fb_32bpp_draw_ft_bitmap(&bglyph->bitmap, - x + bglyph->left, - y - bglyph->top, - c); - } - } - x += glyph->advance.x >> 16; - - } - return true; -} -#else -static bool fb_32bpp_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; - uint32_t row; - int xloop, yloop; - size_t chr; - - uint32_t *pvideo; - uint32_t fgcol; - - unsigned 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, (char**)&buffer); - if (!buffer) - return true; - length = strlen((char *)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)) { - free(buffer); - 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 = fb_colour_to_pixel(c); - - /*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_32bpp_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 >> 2); - } - } - - free(buffer); - return true; -} -#endif - -static bool fb_32bpp_disc(int x, int y, int radius, colour c, bool filled) -{ - LOG(("disc unimplemented")); - return true; -} - -static bool fb_32bpp_arc(int x, int y, int radius, int angle1, int angle2, - colour c) -{ - LOG(("arc unimplemented")); - return true; -} - - -static bool fb_32bpp_bitmap(int x, int y, int width, int height, - struct bitmap *bitmap, colour bg, - struct content *content) -{ - uint32_t *pvideo; - colour *pixel = (colour *)bitmap->pixdata; - colour abpixel = 0; /* 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) * bitmap->width; - height = height * bitmap->width + yoff; - - /* plot the image */ - pvideo = fb_32bpp_get_xy_loc(x0, y0); - - if (bitmap->opaque) { - for (yloop = yoff; yloop < height; yloop += bitmap->width) { - for (xloop = 0; xloop < width; xloop++) { - abpixel = pixel[yloop + xloop + xoff]; - *(pvideo + xloop) = fb_colour_to_pixel(abpixel); - } - pvideo += (framebuffer->linelen >> 2); - } - } else { - for (yloop = yoff; yloop < height; yloop += bitmap->width) { - for (xloop = 0; xloop < width; xloop++) { - abpixel = pixel[yloop + xloop + xoff]; - if ((abpixel & 0xFF000000) != 0) { - if ((abpixel & 0xFF000000) != 0xFF000000) { - abpixel = fb_plotters_ablend(abpixel, - fb_32bpp_to_colour(*(pvideo + xloop))); - } - - *(pvideo + xloop) = fb_colour_to_pixel(abpixel); - } - } - pvideo += (framebuffer->linelen >> 2); - } - } - return true; -} - - -static bool fb_32bpp_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_32bpp_bitmap); -} - -static bool fb_32bpp_flush(void) -{ - LOG(("flush unimplemnted")); - return true; -} - -static bool fb_32bpp_path(const float *p, unsigned int n, colour fill, float width, - colour c, const float transform[6]) -{ - LOG(("path unimplemented")); - return true; -} - - -const struct plotter_table framebuffer_32bpp_plot = { - .clg = fb_32bpp_clg, - .rectangle = fb_32bpp_rectangle, - .line = fb_32bpp_line, - .polygon = fb_32bpp_polygon, - .fill = fb_32bpp_fill, - .clip = fb_clip, - .text = fb_32bpp_text, - .disc = fb_32bpp_disc, - .arc = fb_32bpp_arc, - .bitmap = fb_32bpp_bitmap, - .bitmap_tile = fb_32bpp_bitmap_tile, - .flush = fb_32bpp_flush, - .path = fb_32bpp_path, - .option_knockout = true, -}; - -/* - * Local Variables: - * c-basic-offset:8 - * End: - */ |