diff options
Diffstat (limited to 'framebuffer/thumbnail.c')
-rw-r--r-- | framebuffer/thumbnail.c | 70 |
1 files changed, 68 insertions, 2 deletions
diff --git a/framebuffer/thumbnail.c b/framebuffer/thumbnail.c index 50b9ba932..1a3e2784b 100644 --- a/framebuffer/thumbnail.c +++ b/framebuffer/thumbnail.c @@ -16,14 +16,80 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ +#include <stdbool.h> + +#include <libnsfb.h> +#include <libnsfb_plot.h> + +#include "utils/log.h" #include "desktop/thumbnail.h" #include "content/urldb.h" -bool -thumbnail_create(struct hlcache_handle *content, +#include "framebuffer/gui.h" +#include "framebuffer/fbtk.h" +#include "framebuffer/framebuffer.h" + +bool +thumbnail_create(struct hlcache_handle *content, struct bitmap *bitmap, const char *url) { + 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, + .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 false; + } + + nsfb_set_geometry(bm, cwidth, cheight, NSFB_FMT_XBGR8888); + + if (nsfb_init(bm) == -1) { + nsfb_free(bm); + return false; + } + + current = framebuffer_set_surface(bm); + + /* render the content into temporary surface */ + thumbnail_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); + /* register the thumbnail with the URL */ if (url != NULL) urldb_set_thumbnail(url, bitmap); |