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Diffstat (limited to 'frontends/kolibrios/fb/bitmap.c')
| -rw-r--r-- | frontends/kolibrios/fb/bitmap.c | 352 |
1 files changed, 0 insertions, 352 deletions
diff --git a/frontends/kolibrios/fb/bitmap.c b/frontends/kolibrios/fb/bitmap.c deleted file mode 100644 index f844b9697..000000000 --- a/frontends/kolibrios/fb/bitmap.c +++ /dev/null @@ -1,352 +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/>. - */ - -/** - * \file - * Framebuffer implementation of generic bitmap interface. - */ - -#include <inttypes.h> -#include <sys/types.h> -#include <stdbool.h> -#include <assert.h> -#include <libnsfb.h> -#include <libnsfb_plot.h> - -#include "utils/log.h" -#include "utils/utils.h" -#include "netsurf/bitmap.h" -#include "netsurf/plotters.h" -#include "netsurf/content.h" - -#include "kolibrios/fb/gui.h" -#include "kolibrios/fb/fbtk.h" -#include "kolibrios/fb/framebuffer.h" -#include "kolibrios/fb/bitmap.h" - -/** - * Create a bitmap. - * - * \param width width of image in pixels - * \param height width of image in pixels - * \param state a flag word indicating the initial state - * \return an opaque struct bitmap, or NULL on memory exhaustion - */ -static void *bitmap_create(int width, int height, unsigned int state) -{ - nsfb_t *bm; - - LOG("width %d, height %d, state %u", width, height, state); - - bm = nsfb_new(NSFB_SURFACE_RAM); - if (bm == NULL) { - return NULL; - } - - if ((state & BITMAP_OPAQUE) == 0) { - nsfb_set_geometry(bm, width, height, NSFB_FMT_ABGR8888); - } else { - nsfb_set_geometry(bm, width, height, NSFB_FMT_XBGR8888); - } - - if (nsfb_init(bm) == -1) { - nsfb_free(bm); - return NULL; - } - - LOG("bitmap %p", bm); - - return bm; -} - - -/** - * Return a pointer to the pixel data in a bitmap. - * - * \param bitmap a bitmap, as returned by bitmap_create() - * \return pointer to the pixel buffer - * - * The pixel data is packed as BITMAP_FORMAT, possibly with padding at the end - * of rows. The width of a row in bytes is given by bitmap_get_rowstride(). - */ -static unsigned char *bitmap_get_buffer(void *bitmap) -{ - nsfb_t *bm = bitmap; - unsigned char *bmpptr; - - assert(bm != NULL); - - nsfb_get_buffer(bm, &bmpptr, NULL); - - return bmpptr; -} - - -/** - * Find the width of a pixel row in bytes. - * - * \param bitmap a bitmap, as returned by bitmap_create() - * \return width of a pixel row in the bitmap - */ -static size_t bitmap_get_rowstride(void *bitmap) -{ - nsfb_t *bm = bitmap; - int bmpstride; - - assert(bm != NULL); - - nsfb_get_buffer(bm, NULL, &bmpstride); - - return bmpstride; -} - - -/** - * Free a bitmap. - * - * \param bitmap a bitmap, as returned by bitmap_create() - */ -static void bitmap_destroy(void *bitmap) -{ - nsfb_t *bm = bitmap; - - assert(bm != NULL); - - nsfb_free(bm); -} - - -/** - * Save a bitmap in the platform's native format. - * - * \param bitmap a bitmap, as returned by bitmap_create() - * \param path pathname for file - * \param flags flags controlling how the bitmap is saved. - * \return true on success, false on error and error reported - */ -static bool bitmap_save(void *bitmap, const char *path, unsigned flags) -{ - return true; -} - - -/** - * The bitmap image has changed, so flush any persistant cache. - * - * \param bitmap a bitmap, as returned by bitmap_create() - */ -static void bitmap_modified(void *bitmap) { -} - -/** - * Sets wether a bitmap should be plotted opaque - * - * \param bitmap a bitmap, as returned by bitmap_create() - * \param opaque whether the bitmap should be plotted opaque - */ -static void bitmap_set_opaque(void *bitmap, bool opaque) -{ - nsfb_t *bm = bitmap; - - assert(bm != NULL); - - if (opaque) { - nsfb_set_geometry(bm, 0, 0, NSFB_FMT_XBGR8888); - } else { - nsfb_set_geometry(bm, 0, 0, NSFB_FMT_ABGR8888); - } -} - - -/** - * Tests whether a bitmap has an opaque alpha channel - * - * \param bitmap a bitmap, as returned by bitmap_create() - * \return whether the bitmap is opaque - */ -static bool bitmap_test_opaque(void *bitmap) -{ - int tst; - nsfb_t *bm = bitmap; - unsigned char *bmpptr; - int width; - int height; - - assert(bm != NULL); - - nsfb_get_buffer(bm, &bmpptr, NULL); - - nsfb_get_geometry(bm, &width, &height, NULL); - - tst = width * height; - - while (tst-- > 0) { - if (bmpptr[(tst << 2) + 3] != 0xff) { - LOG("bitmap %p has transparency", bm); - return false; - } - } - LOG("bitmap %p is opaque", bm); - return true; -} - - -/** - * Gets weather a bitmap should be plotted opaque - * - * \param bitmap a bitmap, as returned by bitmap_create() - */ -bool framebuffer_bitmap_get_opaque(void *bitmap) -{ - nsfb_t *bm = bitmap; - enum nsfb_format_e format; - - assert(bm != NULL); - - nsfb_get_geometry(bm, NULL, NULL, &format); - - if (format == NSFB_FMT_ABGR8888) - return false; - - return true; -} - -static int bitmap_get_width(void *bitmap) -{ - nsfb_t *bm = bitmap; - int width; - - assert(bm != NULL); - - nsfb_get_geometry(bm, &width, NULL, NULL); - - return(width); -} - -static int bitmap_get_height(void *bitmap) -{ - nsfb_t *bm = bitmap; - int height; - - assert(bm != NULL); - - nsfb_get_geometry(bm, NULL, &height, NULL); - - return(height); -} - -/* get bytes per pixel */ -static size_t bitmap_get_bpp(void *bitmap) -{ - return 4; -} - -/** - * Render content into a bitmap. - * - * \param bitmap the bitmap to draw to - * \param content content structure to render - * \return true on success and bitmap updated else false - */ -static nserror -bitmap_render(struct bitmap *bitmap, - struct hlcache_handle *content) -{ - nsfb_t *tbm = (nsfb_t *)bitmap; /* target bitmap */ - nsfb_t *bm; /* temporary bitmap */ - nsfb_t *current; /* current main fb */ - int width, height; /* target bitmap width height */ - int cwidth, cheight;/* content width /height */ - nsfb_bbox_t loc; - - struct redraw_context ctx = { - .interactive = false, - .background_images = true, - .plot = &fb_plotters - }; - - nsfb_get_geometry(tbm, &width, &height, NULL); - - LOG("width %d, height %d", width, height); - - /* Calculate size of buffer to render the content into */ - /* We get the width from the content width, unless it exceeds 1024, - * in which case we use 1024. This means we never create excessively - * large render buffers for huge contents, which would eat memory and - * cripple performance. */ - cwidth = min(content_get_width(content), 1024); - /* The height is set in proportion with the width, according to the - * aspect ratio of the required thumbnail. */ - cheight = ((cwidth * height) + (width / 2)) / width; - - /* create temporary surface */ - bm = nsfb_new(NSFB_SURFACE_RAM); - if (bm == NULL) { - return NSERROR_NOMEM; - } - - nsfb_set_geometry(bm, cwidth, cheight, NSFB_FMT_XBGR8888); - - if (nsfb_init(bm) == -1) { - nsfb_free(bm); - return NSERROR_NOMEM; - } - - current = framebuffer_set_surface(bm); - - /* render the content into temporary surface */ - content_scaled_redraw(content, cwidth, cheight, &ctx); - - framebuffer_set_surface(current); - - loc.x0 = 0; - loc.y0 = 0; - loc.x1 = width; - loc.y1 = height; - - nsfb_plot_copy(bm, NULL, tbm, &loc); - - nsfb_free(bm); - - return NSERROR_OK; -} - -static struct gui_bitmap_table bitmap_table = { - .create = bitmap_create, - .destroy = bitmap_destroy, - .set_opaque = bitmap_set_opaque, - .get_opaque = framebuffer_bitmap_get_opaque, - .test_opaque = bitmap_test_opaque, - .get_buffer = bitmap_get_buffer, - .get_rowstride = bitmap_get_rowstride, - .get_width = bitmap_get_width, - .get_height = bitmap_get_height, - .get_bpp = bitmap_get_bpp, - .save = bitmap_save, - .modified = bitmap_modified, - .render = bitmap_render, -}; - -struct gui_bitmap_table *framebuffer_bitmap_table = &bitmap_table; - - -/* - * Local Variables: - * c-basic-offset:8 - * End: - */ |