[util] Fold helper-cairo-ansi.cc into helper-cairo-ansi.hh
This commit is contained in:
Behdad Esfahbod
parent
4fe43ccbf1
commit
c40e00796c
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@ -7,7 +7,6 @@ HB_VIEW_sources = \
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ansi-print.hh \
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helper-cairo.cc \
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helper-cairo.hh \
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helper-cairo-ansi.cc \
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helper-cairo-ansi.hh \
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view-cairo.hh \
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$(NULL)
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@ -1,202 +0,0 @@
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/*
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* Copyright © 2012 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Behdad Esfahbod
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*/
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#include "helper-cairo-ansi.hh"
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#include "options.hh"
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#include "ansi-print.hh"
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#ifdef HAVE_CHAFA
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# include <chafa.h>
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/* Similar to ansi-print.cc */
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# define CELL_W 8
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# define CELL_H (2 * CELL_W)
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static void
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chafa_print_image_rgb24 (const void *data, int width, int height, int stride)
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{
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ChafaTermInfo *term_info;
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ChafaSymbolMap *symbol_map;
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ChafaCanvasConfig *config;
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ChafaCanvas *canvas;
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GString *gs;
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unsigned int cols = (width + CELL_W - 1) / CELL_W;
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unsigned int rows = (height + CELL_H - 1) / CELL_H;
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gchar **environ;
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ChafaCanvasMode mode;
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ChafaPixelMode pixel_mode;
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/* Adapt to terminal; use sixels if available, and fall back to symbols
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* with as many colors as are supported */
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environ = g_get_environ ();
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term_info = chafa_term_db_detect (chafa_term_db_get_default (),
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environ);
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pixel_mode = CHAFA_PIXEL_MODE_SYMBOLS;
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if (chafa_term_info_have_seq (term_info, CHAFA_TERM_SEQ_BEGIN_SIXELS))
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{
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pixel_mode = CHAFA_PIXEL_MODE_SIXELS;
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mode = CHAFA_CANVAS_MODE_TRUECOLOR;
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}
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// else if (chafa_term_info_have_seq (term_info, CHAFA_TERM_SEQ_SET_COLOR_FGBG_DIRECT))
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// mode = CHAFA_CANVAS_MODE_TRUECOLOR;
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else if (chafa_term_info_have_seq (term_info, CHAFA_TERM_SEQ_SET_COLOR_FGBG_256))
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mode = CHAFA_CANVAS_MODE_INDEXED_240;
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else if (chafa_term_info_have_seq (term_info, CHAFA_TERM_SEQ_SET_COLOR_FGBG_16))
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mode = CHAFA_CANVAS_MODE_INDEXED_16;
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else if (chafa_term_info_have_seq (term_info, CHAFA_TERM_SEQ_INVERT_COLORS))
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mode = CHAFA_CANVAS_MODE_FGBG_BGFG;
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else
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mode = CHAFA_CANVAS_MODE_FGBG;
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/* Create the configuration */
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symbol_map = chafa_symbol_map_new ();
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chafa_symbol_map_add_by_tags (symbol_map,
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(ChafaSymbolTags) (CHAFA_SYMBOL_TAG_BLOCK
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| CHAFA_SYMBOL_TAG_SPACE));
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config = chafa_canvas_config_new ();
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chafa_canvas_config_set_canvas_mode (config, mode);
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chafa_canvas_config_set_pixel_mode (config, pixel_mode);
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chafa_canvas_config_set_cell_geometry (config, 10, 20);
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chafa_canvas_config_set_geometry (config, cols, rows);
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chafa_canvas_config_set_symbol_map (config, symbol_map);
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chafa_canvas_config_set_color_extractor (config, CHAFA_COLOR_EXTRACTOR_MEDIAN);
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chafa_canvas_config_set_work_factor (config, 1.0f);
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/* Create canvas, draw to it and render output string */
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canvas = chafa_canvas_new (config);
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chafa_canvas_draw_all_pixels (canvas,
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/* Cairo byte order is host native */
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G_BYTE_ORDER == G_LITTLE_ENDIAN
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? CHAFA_PIXEL_BGRA8_PREMULTIPLIED
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: CHAFA_PIXEL_ARGB8_PREMULTIPLIED,
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(const guint8 *) data,
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width,
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height,
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stride);
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gs = chafa_canvas_print (canvas, term_info);
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/* Print the string */
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fwrite (gs->str, sizeof (char), gs->len, stdout);
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if (pixel_mode != CHAFA_PIXEL_MODE_SIXELS)
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fputc ('\n', stdout);
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/* Free resources */
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g_string_free (gs, TRUE);
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chafa_canvas_unref (canvas);
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chafa_canvas_config_unref (config);
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chafa_symbol_map_unref (symbol_map);
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chafa_term_info_unref (term_info);
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g_strfreev (environ);
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}
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#endif /* HAVE_CHAFA */
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cairo_status_t
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helper_cairo_surface_write_to_ansi_stream (cairo_surface_t *surface,
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cairo_write_func_t write_func,
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void *closure)
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{
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unsigned int width = cairo_image_surface_get_width (surface);
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unsigned int height = cairo_image_surface_get_height (surface);
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if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_RGB24) {
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cairo_surface_t *new_surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
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cairo_t *cr = cairo_create (new_surface);
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if (cairo_image_surface_get_format (surface) == CAIRO_FORMAT_A8) {
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cairo_set_source_rgb (cr, 0., 0., 0.);
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cairo_paint (cr);
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cairo_set_source_rgb (cr, 1., 1., 1.);
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cairo_mask_surface (cr, surface, 0, 0);
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} else {
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cairo_set_source_rgb (cr, 1., 1., 1.);
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cairo_paint (cr);
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cairo_set_source_surface (cr, surface, 0, 0);
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cairo_paint (cr);
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}
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cairo_destroy (cr);
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surface = new_surface;
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} else
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cairo_surface_reference (surface);
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unsigned int stride = cairo_image_surface_get_stride (surface);
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const uint32_t *data = (uint32_t *) (void *) cairo_image_surface_get_data (surface);
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/* We don't have rows to spare on the terminal window...
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* Find the tight image top/bottom and only print in between. */
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/* Use corner color as background color. */
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uint32_t bg_color = data ? * (uint32_t *) data : 0;
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/* Drop first row while empty */
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while (height)
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{
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unsigned int i;
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for (i = 0; i < width; i++)
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if (data[i] != bg_color)
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break;
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if (i < width)
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break;
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data += stride / 4;
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height--;
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}
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/* Drop last row while empty */
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unsigned int orig_height = height;
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while (height)
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{
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const uint32_t *row = data + (height - 1) * stride / 4;
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unsigned int i;
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for (i = 0; i < width; i++)
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if (row[i] != bg_color)
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break;
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if (i < width)
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break;
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height--;
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}
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if (height < orig_height)
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height++; /* Add one last blank row for padding. */
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if (width && height)
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{
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#ifdef HAVE_CHAFA
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if (true)
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chafa_print_image_rgb24 (data, width, height, stride);
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else
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#endif
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ansi_print_image_rgb24 (data, width, height, stride / 4);
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}
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cairo_surface_destroy (surface);
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return CAIRO_STATUS_SUCCESS;
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}
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@ -31,10 +31,180 @@
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#include <cairo.h>
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cairo_status_t
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#include "ansi-print.hh"
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#ifdef HAVE_CHAFA
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# include <chafa.h>
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/* Similar to ansi-print.cc */
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# define CELL_W 8
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# define CELL_H (2 * CELL_W)
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static void
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chafa_print_image_rgb24 (const void *data, int width, int height, int stride)
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{
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ChafaTermInfo *term_info;
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ChafaSymbolMap *symbol_map;
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ChafaCanvasConfig *config;
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ChafaCanvas *canvas;
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GString *gs;
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unsigned int cols = (width + CELL_W - 1) / CELL_W;
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unsigned int rows = (height + CELL_H - 1) / CELL_H;
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gchar **environ;
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ChafaCanvasMode mode;
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ChafaPixelMode pixel_mode;
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/* Adapt to terminal; use sixels if available, and fall back to symbols
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* with as many colors as are supported */
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environ = g_get_environ ();
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term_info = chafa_term_db_detect (chafa_term_db_get_default (),
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environ);
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pixel_mode = CHAFA_PIXEL_MODE_SYMBOLS;
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if (chafa_term_info_have_seq (term_info, CHAFA_TERM_SEQ_BEGIN_SIXELS))
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{
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pixel_mode = CHAFA_PIXEL_MODE_SIXELS;
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mode = CHAFA_CANVAS_MODE_TRUECOLOR;
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}
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// else if (chafa_term_info_have_seq (term_info, CHAFA_TERM_SEQ_SET_COLOR_FGBG_DIRECT))
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// mode = CHAFA_CANVAS_MODE_TRUECOLOR;
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else if (chafa_term_info_have_seq (term_info, CHAFA_TERM_SEQ_SET_COLOR_FGBG_256))
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mode = CHAFA_CANVAS_MODE_INDEXED_240;
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else if (chafa_term_info_have_seq (term_info, CHAFA_TERM_SEQ_SET_COLOR_FGBG_16))
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mode = CHAFA_CANVAS_MODE_INDEXED_16;
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else if (chafa_term_info_have_seq (term_info, CHAFA_TERM_SEQ_INVERT_COLORS))
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mode = CHAFA_CANVAS_MODE_FGBG_BGFG;
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else
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mode = CHAFA_CANVAS_MODE_FGBG;
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/* Create the configuration */
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symbol_map = chafa_symbol_map_new ();
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chafa_symbol_map_add_by_tags (symbol_map,
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(ChafaSymbolTags) (CHAFA_SYMBOL_TAG_BLOCK
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| CHAFA_SYMBOL_TAG_SPACE));
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config = chafa_canvas_config_new ();
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chafa_canvas_config_set_canvas_mode (config, mode);
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chafa_canvas_config_set_pixel_mode (config, pixel_mode);
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chafa_canvas_config_set_cell_geometry (config, 10, 20);
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chafa_canvas_config_set_geometry (config, cols, rows);
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chafa_canvas_config_set_symbol_map (config, symbol_map);
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chafa_canvas_config_set_color_extractor (config, CHAFA_COLOR_EXTRACTOR_MEDIAN);
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chafa_canvas_config_set_work_factor (config, 1.0f);
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/* Create canvas, draw to it and render output string */
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canvas = chafa_canvas_new (config);
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chafa_canvas_draw_all_pixels (canvas,
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/* Cairo byte order is host native */
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G_BYTE_ORDER == G_LITTLE_ENDIAN
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? CHAFA_PIXEL_BGRA8_PREMULTIPLIED
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: CHAFA_PIXEL_ARGB8_PREMULTIPLIED,
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(const guint8 *) data,
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width,
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height,
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stride);
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gs = chafa_canvas_print (canvas, term_info);
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/* Print the string */
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fwrite (gs->str, sizeof (char), gs->len, stdout);
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if (pixel_mode != CHAFA_PIXEL_MODE_SIXELS)
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fputc ('\n', stdout);
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/* Free resources */
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g_string_free (gs, TRUE);
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chafa_canvas_unref (canvas);
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chafa_canvas_config_unref (config);
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chafa_symbol_map_unref (symbol_map);
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chafa_term_info_unref (term_info);
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g_strfreev (environ);
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}
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#endif /* HAVE_CHAFA */
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static inline cairo_status_t
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helper_cairo_surface_write_to_ansi_stream (cairo_surface_t *surface,
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cairo_write_func_t write_func,
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void *closure);
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void *closure)
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{
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unsigned int width = cairo_image_surface_get_width (surface);
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unsigned int height = cairo_image_surface_get_height (surface);
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if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_RGB24) {
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cairo_surface_t *new_surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
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cairo_t *cr = cairo_create (new_surface);
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if (cairo_image_surface_get_format (surface) == CAIRO_FORMAT_A8) {
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cairo_set_source_rgb (cr, 0., 0., 0.);
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cairo_paint (cr);
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cairo_set_source_rgb (cr, 1., 1., 1.);
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cairo_mask_surface (cr, surface, 0, 0);
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} else {
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cairo_set_source_rgb (cr, 1., 1., 1.);
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cairo_paint (cr);
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cairo_set_source_surface (cr, surface, 0, 0);
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cairo_paint (cr);
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}
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cairo_destroy (cr);
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surface = new_surface;
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} else
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cairo_surface_reference (surface);
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unsigned int stride = cairo_image_surface_get_stride (surface);
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const uint32_t *data = (uint32_t *) (void *) cairo_image_surface_get_data (surface);
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/* We don't have rows to spare on the terminal window...
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* Find the tight image top/bottom and only print in between. */
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/* Use corner color as background color. */
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uint32_t bg_color = data ? * (uint32_t *) data : 0;
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/* Drop first row while empty */
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while (height)
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{
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unsigned int i;
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for (i = 0; i < width; i++)
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if (data[i] != bg_color)
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break;
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if (i < width)
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break;
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data += stride / 4;
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height--;
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}
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/* Drop last row while empty */
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unsigned int orig_height = height;
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while (height)
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{
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const uint32_t *row = data + (height - 1) * stride / 4;
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unsigned int i;
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for (i = 0; i < width; i++)
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if (row[i] != bg_color)
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break;
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if (i < width)
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break;
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height--;
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}
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if (height < orig_height)
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height++; /* Add one last blank row for padding. */
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if (width && height)
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{
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#ifdef HAVE_CHAFA
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if (true)
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chafa_print_image_rgb24 (data, width, height, stride);
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else
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#endif
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ansi_print_image_rgb24 (data, width, height, stride / 4);
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}
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cairo_surface_destroy (surface);
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return CAIRO_STATUS_SUCCESS;
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}
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#endif
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@ -2,7 +2,6 @@ hb_view_sources = [
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'hb-view.cc',
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'options.cc',
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'helper-cairo.cc',
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'helper-cairo-ansi.cc',
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]
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hb_shape_sources = [
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