diff options
Diffstat (limited to 'frontends/kolibrios/fb/framebuffer.c')
| -rw-r--r-- | frontends/kolibrios/fb/framebuffer.c | 651 |
1 files changed, 0 insertions, 651 deletions
diff --git a/frontends/kolibrios/fb/framebuffer.c b/frontends/kolibrios/fb/framebuffer.c deleted file mode 100644 index 5b209f46a..000000000 --- a/frontends/kolibrios/fb/framebuffer.c +++ /dev/null @@ -1,651 +0,0 @@ -/* - * Copyright 2008 Vincent Sanders <vince@simtec.co.uk> - * - * Framebuffer interface - * - * 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 <stdio.h> -#include <stdbool.h> -#include <stdlib.h> -#include <string.h> - -#include <libnsfb.h> -#include <libnsfb_plot.h> -#include <libnsfb_event.h> -#include <libnsfb_cursor.h> - -#include "utils/utils.h" -#include "utils/log.h" -#include "utils/utf8.h" -#include "netsurf/browser_window.h" -#include "netsurf/plotters.h" -#include "netsurf/bitmap.h" - -#include "kolibrios/fb/gui.h" -#include "kolibrios/fb/fbtk.h" -#include "kolibrios/fb/framebuffer.h" -#include "kolibrios/fb/font.h" -#include "kolibrios/fb/bitmap.h" - -/* netsurf framebuffer library handle */ -static nsfb_t *nsfb; - - -/** - * \brief Sets a clip rectangle for subsequent plot operations. - * - * \param ctx The current redraw context. - * \param clip The rectangle to limit all subsequent plot - * operations within. - * \return NSERROR_OK on success else error code. - */ -static nserror -framebuffer_plot_clip(const struct redraw_context *ctx, const struct rect *clip) -{ - nsfb_bbox_t nsfb_clip; - nsfb_clip.x0 = clip->x0; - nsfb_clip.y0 = clip->y0; - nsfb_clip.x1 = clip->x1; - nsfb_clip.y1 = clip->y1; - - if (!nsfb_plot_set_clip(nsfb, &nsfb_clip)) { - return NSERROR_INVALID; - } - return NSERROR_OK; -} - - -/** - * Plots an arc - * - * plot an arc segment around (x,y), anticlockwise from angle1 - * to angle2. Angles are measured anticlockwise from - * horizontal, in degrees. - * - * \param ctx The current redraw context. - * \param style Style controlling the arc plot. - * \param x The x coordinate of the arc. - * \param y The y coordinate of the arc. - * \param radius The radius of the arc. - * \param angle1 The start angle of the arc. - * \param angle2 The finish angle of the arc. - * \return NSERROR_OK on success else error code. - */ -static nserror -framebuffer_plot_arc(const struct redraw_context *ctx, - const plot_style_t *style, - int x, int y, int radius, int angle1, int angle2) -{ - if (!nsfb_plot_arc(nsfb, x, y, radius, angle1, angle2, style->fill_colour)) { - return NSERROR_INVALID; - } - return NSERROR_OK; -} - - -/** - * Plots a circle - * - * Plot a circle centered on (x,y), which is optionally filled. - * - * \param ctx The current redraw context. - * \param style Style controlling the circle plot. - * \param x x coordinate of circle centre. - * \param y y coordinate of circle centre. - * \param radius circle radius. - * \return NSERROR_OK on success else error code. - */ -static nserror -framebuffer_plot_disc(const struct redraw_context *ctx, - const plot_style_t *style, - int x, int y, int radius) -{ - nsfb_bbox_t ellipse; - ellipse.x0 = x - radius; - ellipse.y0 = y - radius; - ellipse.x1 = x + radius; - ellipse.y1 = y + radius; - - if (style->fill_type != PLOT_OP_TYPE_NONE) { - nsfb_plot_ellipse_fill(nsfb, &ellipse, style->fill_colour); - } - - if (style->stroke_type != PLOT_OP_TYPE_NONE) { - nsfb_plot_ellipse(nsfb, &ellipse, style->stroke_colour); - } - return NSERROR_OK; -} - - -/** - * Plots a line - * - * plot a line from (x0,y0) to (x1,y1). Coordinates are at - * centre of line width/thickness. - * - * \param ctx The current redraw context. - * \param style Style controlling the line plot. - * \param line A rectangle defining the line to be drawn - * \return NSERROR_OK on success else error code. - */ -static nserror -framebuffer_plot_line(const struct redraw_context *ctx, - const plot_style_t *style, - const struct rect *line) -{ - nsfb_bbox_t rect; - nsfb_plot_pen_t pen; - - rect.x0 = line->x0; - rect.y0 = line->y0; - rect.x1 = line->x1; - rect.y1 = line->y1; - - if (style->stroke_type != PLOT_OP_TYPE_NONE) { - - if (style->stroke_type == PLOT_OP_TYPE_DOT) { - pen.stroke_type = NFSB_PLOT_OPTYPE_PATTERN; - pen.stroke_pattern = 0xAAAAAAAA; - } else if (style->stroke_type == PLOT_OP_TYPE_DASH) { - pen.stroke_type = NFSB_PLOT_OPTYPE_PATTERN; - pen.stroke_pattern = 0xF0F0F0F0; - } else { - pen.stroke_type = NFSB_PLOT_OPTYPE_SOLID; - } - - pen.stroke_colour = style->stroke_colour; - pen.stroke_width = style->stroke_width; - nsfb_plot_line(nsfb, &rect, &pen); - } - - return NSERROR_OK; -} - - -/** - * Plots a rectangle. - * - * The rectangle can be filled an outline or both controlled - * by the plot style The line can be solid, dotted or - * dashed. Top left corner at (x0,y0) and rectangle has given - * width and height. - * - * \param ctx The current redraw context. - * \param style Style controlling the rectangle plot. - * \param nsrect A rectangle defining the line to be drawn - * \return NSERROR_OK on success else error code. - */ -static nserror -framebuffer_plot_rectangle(const struct redraw_context *ctx, - const plot_style_t *style, - const struct rect *nsrect) -{ - nsfb_bbox_t rect; - bool dotted = false; - bool dashed = false; - - rect.x0 = nsrect->x0; - rect.y0 = nsrect->y0; - rect.x1 = nsrect->x1; - rect.y1 = nsrect->y1; - - if (style->fill_type != PLOT_OP_TYPE_NONE) { - nsfb_plot_rectangle_fill(nsfb, &rect, style->fill_colour); - } - - if (style->stroke_type != PLOT_OP_TYPE_NONE) { - if (style->stroke_type == PLOT_OP_TYPE_DOT) { - dotted = true; - } - - if (style->stroke_type == PLOT_OP_TYPE_DASH) { - dashed = true; - } - - nsfb_plot_rectangle(nsfb, &rect, style->stroke_width, style->stroke_colour, dotted, dashed); - } - return NSERROR_OK; -} - - -/** - * Plot a polygon - * - * Plots a filled polygon with straight lines between - * points. The lines around the edge of the ploygon are not - * plotted. The polygon is filled with the non-zero winding - * rule. - * - * \param ctx The current redraw context. - * \param style Style controlling the polygon plot. - * \param p verticies of polygon - * \param n number of verticies. - * \return NSERROR_OK on success else error code. - */ -static nserror -framebuffer_plot_polygon(const struct redraw_context *ctx, - const plot_style_t *style, - const int *p, - unsigned int n) -{ - if (!nsfb_plot_polygon(nsfb, p, n, style->fill_colour)) { - return NSERROR_INVALID; - } - return NSERROR_OK; -} - - -/** - * Plots a path. - * - * Path plot consisting of cubic Bezier curves. Line and fill colour is - * controlled by the plot style. - * - * \param ctx The current redraw context. - * \param pstyle Style controlling the path plot. - * \param p elements of path - * \param n nunber of elements on path - * \param width The width of the path - * \param transform A transform to apply to the path. - * \return NSERROR_OK on success else error code. - */ -static nserror -framebuffer_plot_path(const struct redraw_context *ctx, - const plot_style_t *pstyle, - const float *p, - unsigned int n, - float width, - const float transform[6]) -{ - LOG("path unimplemented"); - return NSERROR_OK; -} - - -/** - * Plot a bitmap - * - * Tiled plot of a bitmap image. (x,y) gives the top left - * coordinate of an explicitly placed tile. From this tile the - * image can repeat in all four directions -- up, down, left - * and right -- to the extents given by the current clip - * rectangle. - * - * The bitmap_flags say whether to tile in the x and y - * directions. If not tiling in x or y directions, the single - * image is plotted. The width and height give the dimensions - * the image is to be scaled to. - * - * \param ctx The current redraw context. - * \param bitmap The bitmap to plot - * \param x The x coordinate to plot the bitmap - * \param y The y coordiante to plot the bitmap - * \param width The width of area to plot the bitmap into - * \param height The height of area to plot the bitmap into - * \param bg the background colour to alpha blend into - * \param flags the flags controlling the type of plot operation - * \return NSERROR_OK on success else error code. - */ -static nserror -framebuffer_plot_bitmap(const struct redraw_context *ctx, - struct bitmap *bitmap, - int x, int y, - int width, - int height, - colour bg, - bitmap_flags_t flags) -{ - nsfb_bbox_t loc; - nsfb_bbox_t clipbox; - bool repeat_x = (flags & BITMAPF_REPEAT_X); - bool repeat_y = (flags & BITMAPF_REPEAT_Y); - int bmwidth; - int bmheight; - int bmstride; - enum nsfb_format_e bmformat; - unsigned char *bmptr; - nsfb_t *bm = (nsfb_t *)bitmap; - - /* x and y define coordinate of top left of of the initial explicitly - * placed tile. The width and height are the image scaling and the - * bounding box defines the extent of the repeat (which may go in all - * four directions from the initial tile). - */ - - if (!(repeat_x || repeat_y)) { - /* Not repeating at all, so just plot it */ - loc.x0 = x; - loc.y0 = y; - loc.x1 = loc.x0 + width; - loc.y1 = loc.y0 + height; - - return nsfb_plot_copy(bm, NULL, nsfb, &loc); - } - - nsfb_plot_get_clip(nsfb, &clipbox); - nsfb_get_geometry(bm, &bmwidth, &bmheight, &bmformat); - nsfb_get_buffer(bm, &bmptr, &bmstride); - - /* Optimise tiled plots of 1x1 bitmaps by replacing with a flat fill - * of the area. Can only be done when image is fully opaque. */ - if ((bmwidth == 1) && (bmheight == 1)) { - if ((*(nsfb_colour_t *)bmptr & 0xff000000) != 0) { - if (!nsfb_plot_rectangle_fill(nsfb, &clipbox, - *(nsfb_colour_t *)bmptr)) { - return NSERROR_INVALID; - } - return NSERROR_OK; - } - } - - /* Optimise tiled plots of bitmaps scaled to 1x1 by replacing with - * a flat fill of the area. Can only be done when image is fully - * opaque. */ - if ((width == 1) && (height == 1)) { - if (framebuffer_bitmap_get_opaque(bm)) { - /** TODO: Currently using top left pixel. Maybe centre - * pixel or average value would be better. */ - if (!nsfb_plot_rectangle_fill(nsfb, &clipbox, - *(nsfb_colour_t *)bmptr)) { - return NSERROR_INVALID; - } - return NSERROR_OK; - } - } - - /* get left most tile position */ - if (repeat_x) { - for (; x > clipbox.x0; x -= width); - } - - /* get top most tile position */ - if (repeat_y) { - for (; y > clipbox.y0; y -= height); - } - - /* set up top left tile location */ - loc.x0 = x; - loc.y0 = y; - loc.x1 = loc.x0 + width; - loc.y1 = loc.y0 + height; - - /* plot tiling across and down to extents */ - nsfb_plot_bitmap_tiles(nsfb, &loc, - repeat_x ? ((clipbox.x1 - x) + width - 1) / width : 1, - repeat_y ? ((clipbox.y1 - y) + height - 1) / height : 1, - (nsfb_colour_t *)bmptr, bmwidth, bmheight, - bmstride * 8 / 32, bmformat == NSFB_FMT_ABGR8888); - - return NSERROR_OK; -} - - -#ifdef FB_USE_FREETYPE -/** - * Text plotting. - * - * \param ctx The current redraw context. - * \param fstyle plot style for this text - * \param x x coordinate - * \param y y coordinate - * \param text UTF-8 string to plot - * \param length length of string, in bytes - * \return NSERROR_OK on success else error code. - */ -static nserror -framebuffer_plot_text(const struct redraw_context *ctx, - const struct plot_font_style *fstyle, - int x, - int y, - const char *text, - size_t length) -{ - uint32_t ucs4; - size_t nxtchr = 0; - FT_Glyph glyph; - FT_BitmapGlyph bglyph; - nsfb_bbox_t loc; - - while (nxtchr < length) { - ucs4 = utf8_to_ucs4(text + nxtchr, length - nxtchr); - nxtchr = utf8_next(text, length, nxtchr); - - glyph = fb_getglyph(fstyle, ucs4); - if (glyph == NULL) - continue; - - if (glyph->format == FT_GLYPH_FORMAT_BITMAP) { - bglyph = (FT_BitmapGlyph)glyph; - - loc.x0 = x + bglyph->left; - loc.y0 = y - bglyph->top; - loc.x1 = loc.x0 + bglyph->bitmap.width; - loc.y1 = loc.y0 + bglyph->bitmap.rows; - - /* now, draw to our target surface */ - if (bglyph->bitmap.pixel_mode == FT_PIXEL_MODE_MONO) { - nsfb_plot_glyph1(nsfb, - &loc, - bglyph->bitmap.buffer, - bglyph->bitmap.pitch, - fstyle->foreground); - } else { - nsfb_plot_glyph8(nsfb, - &loc, - bglyph->bitmap.buffer, - bglyph->bitmap.pitch, - fstyle->foreground); - } - } - x += glyph->advance.x >> 16; - - } - return NSERROR_OK; - -} - -#else - -/** - * Text plotting. - * - * \param ctx The current redraw context. - * \param fstyle plot style for this text - * \param x x coordinate - * \param y y coordinate - * \param text UTF-8 string to plot - * \param length length of string, in bytes - * \return NSERROR_OK on success else error code. - */ -static nserror -framebuffer_plot_text(const struct redraw_context *ctx, - const struct plot_font_style *fstyle, - int x, - int y, - const char *text, - size_t length) -{ - enum fb_font_style style = fb_get_font_style(fstyle); - int size = fb_get_font_size(fstyle); - const uint8_t *chrp; - size_t nxtchr = 0; - nsfb_bbox_t loc; - uint32_t ucs4; - int p = FB_FONT_PITCH * size; - int w = FB_FONT_WIDTH * size; - int h = FB_FONT_HEIGHT * size; - - y -= ((h * 3) / 4); - /* 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 */ - y += 1; - - while (nxtchr < length) { - ucs4 = utf8_to_ucs4(text + nxtchr, length - nxtchr); - nxtchr = utf8_next(text, length, nxtchr); - - if (!codepoint_displayable(ucs4)) - continue; - - loc.x0 = x; - loc.y0 = y; - loc.x1 = loc.x0 + w; - loc.y1 = loc.y0 + h; - - chrp = fb_get_glyph(ucs4, style, size); - nsfb_plot_glyph1(nsfb, &loc, chrp, p, fstyle->foreground); - - x += w; - - } - - return NSERROR_OK; -} -#endif - - -/** framebuffer plot operation table */ -const struct plotter_table fb_plotters = { - .clip = framebuffer_plot_clip, - .arc = framebuffer_plot_arc, - .disc = framebuffer_plot_disc, - .line = framebuffer_plot_line, - .rectangle = framebuffer_plot_rectangle, - .polygon = framebuffer_plot_polygon, - .path = framebuffer_plot_path, - .bitmap = framebuffer_plot_bitmap, - .text = framebuffer_plot_text, - .option_knockout = true, -}; - - -static bool framebuffer_format_from_bpp(int bpp, enum nsfb_format_e *fmt) -{ - switch (bpp) { - case 32: - *fmt = NSFB_FMT_XRGB8888; - break; - - case 24: - *fmt = NSFB_FMT_RGB888; - break; - - case 16: - *fmt = NSFB_FMT_RGB565; - break; - - case 8: - *fmt = NSFB_FMT_I8; - break; - - case 4: - *fmt = NSFB_FMT_I4; - break; - - case 1: - *fmt = NSFB_FMT_I1; - break; - - default: - LOG("Bad bits per pixel (%d)\n", bpp); - return false; - } - - return true; -} - - - -nsfb_t * -framebuffer_initialise(const char *fename, int width, int height, int bpp) -{ - enum nsfb_type_e fbtype; - enum nsfb_format_e fbfmt; - - /* bpp is a proxy for the framebuffer format */ - if (framebuffer_format_from_bpp(bpp, &fbfmt) == false) { - return NULL; - } - - fbtype = nsfb_type_from_name(fename); - if (fbtype == NSFB_SURFACE_NONE) { - LOG("The %s surface is not available from libnsfb\n", fename); - return NULL; - } - - nsfb = nsfb_new(fbtype); - if (nsfb == NULL) { - LOG("Unable to create %s fb surface\n", fename); - return NULL; - } - - if (nsfb_set_geometry(nsfb, width, height, fbfmt) == -1) { - LOG("Unable to set surface geometry\n"); - nsfb_free(nsfb); - return NULL; - } - - nsfb_cursor_init(nsfb); - - if (nsfb_init(nsfb) == -1) { - LOG("Unable to initialise nsfb surface\n"); - nsfb_free(nsfb); - return NULL; - } - - return nsfb; - -} - -bool -framebuffer_resize(nsfb_t *nsfb, int width, int height, int bpp) -{ - enum nsfb_format_e fbfmt; - - /* bpp is a proxy for the framebuffer format */ - if (framebuffer_format_from_bpp(bpp, &fbfmt) == false) { - return false; - } - - if (nsfb_set_geometry(nsfb, width, height, fbfmt) == -1) { - LOG("Unable to change surface geometry\n"); - return false; - } - - return true; - -} - -void -framebuffer_finalise(void) -{ - nsfb_free(nsfb); -} - -bool -framebuffer_set_cursor(struct fbtk_bitmap *bm) -{ - return nsfb_cursor_set(nsfb, (nsfb_colour_t *)bm->pixdata, bm->width, bm->height, bm->width, bm->hot_x, bm->hot_y); -} - -nsfb_t *framebuffer_set_surface(nsfb_t *new_nsfb) -{ - nsfb_t *old_nsfb; - old_nsfb = nsfb; - nsfb = new_nsfb; - return old_nsfb; -} |