From 1a22eb2b658215ccb1d5281a4b30a2055fe6b8f6 Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Thu, 23 Apr 2015 22:48:01 +0100 Subject: Convert framebuffer to use bitmap render from thumbnail API --- framebuffer/bitmap.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 79 insertions(+), 1 deletion(-) (limited to 'framebuffer/bitmap.c') diff --git a/framebuffer/bitmap.c b/framebuffer/bitmap.c index 713cf840a..9f5b02524 100644 --- a/framebuffer/bitmap.c +++ b/framebuffer/bitmap.c @@ -26,10 +26,17 @@ #include #include #include +#include -#include "image/bitmap.h" #include "utils/log.h" +#include "utils/utils.h" +#include "image/bitmap.h" +#include "desktop/plotters.h" +#include "content/content.h" +#include "framebuffer/gui.h" +#include "framebuffer/fbtk.h" +#include "framebuffer/framebuffer.h" #include "framebuffer/bitmap.h" /** @@ -249,6 +256,76 @@ 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, @@ -262,6 +339,7 @@ static struct gui_bitmap_table bitmap_table = { .get_bpp = bitmap_get_bpp, .save = bitmap_save, .modified = bitmap_modified, + .render = bitmap_render, }; struct gui_bitmap_table *framebuffer_bitmap_table = &bitmap_table; -- cgit v1.2.3