diff options
Diffstat (limited to 'test/mask-glyphs.c')
| -rw-r--r-- | test/mask-glyphs.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/test/mask-glyphs.c b/test/mask-glyphs.c deleted file mode 100644 index 2e7b70301..000000000 --- a/test/mask-glyphs.c +++ /dev/null @@ -1,187 +0,0 @@ -/* - * Copyright 2009 Chris Wilson - * - * Permission to use, copy, modify, distribute, and sell this software - * and its documentation for any purpose is hereby granted without - * fee, provided that the above copyright notice appear in all copies - * and that both that copyright notice and this permission notice - * appear in supporting documentation, and that the name of - * Chris Wilson not be used in advertising or publicity pertaining to - * distribution of the software without specific, written prior - * permission. Chris Wilson makes no representations about the - * suitability of this software for any purpose. It is provided "as - * is" without express or implied warranty. - * - * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS - * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND - * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, - * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER - * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION - * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR - * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * Author: Chris Wilson <chris@chris-wilson.co.uk> - */ - -#include "cairo-test.h" - -#include <assert.h> - -static const char *png_filename = "romedalen.png"; - -#define WIDTH 800 -#define HEIGHT 600 - -static cairo_status_t -_image_to_glyphs (cairo_surface_t *image, - int channel, - int level, - cairo_scaled_font_t *scaled_font, - double tx, double ty, - cairo_glyph_t *glyphs, - int *num_glyphs) -{ - int width, height, stride; - const unsigned char *data; - int x, y, z, n; - - width = cairo_image_surface_get_width (image); - height = cairo_image_surface_get_height (image); - stride = cairo_image_surface_get_stride (image); - data = cairo_image_surface_get_data (image); - - n = 0; - for (y = 0; y < height; y++) { - const uint32_t *row = (uint32_t *) (data + y * stride); - - for (x = 0; x < width; x++) { - z = (row[x] >> channel) & 0xff; - if (z == level) { - double xx, yy, zz; - char c = n % 26 + 'a'; - int count = 1; - cairo_glyph_t *glyphs_p = &glyphs[n]; - cairo_status_t status; - - xx = 4 * (x - width/2.) + width/2.; - yy = 4 * (y - height/2.) + height/2.; - - zz = z / 1000.; - xx = xx + zz*(width/2. - xx); - yy = yy + zz*(height/2. - yy); - - cairo_scaled_font_text_to_glyphs (scaled_font, - tx + xx, ty + yy, - &c, 1, - &glyphs_p, &count, - NULL, NULL, - NULL); - status = cairo_scaled_font_status (scaled_font); - if (status) - return status; - - assert (glyphs_p == &glyphs[n]); - assert (count == 1); - n++; - } - } - } - - *num_glyphs = n; - return CAIRO_STATUS_SUCCESS; -} - -static cairo_status_t -_render_image (cairo_t *cr, - int width, int height, - cairo_surface_t *image) -{ - int ww, hh; - cairo_glyph_t *glyphs; - cairo_pattern_t *mask; - cairo_scaled_font_t *scaled_font; - double tx, ty; - const struct { - int shift; - double red; - double green; - double blue; - } channel[3] = { - { 0, 0.9, 0.3, 0.4 }, - { 8, 0.4, 0.9, 0.3 }, - { 16, 0.3, 0.4, 0.9 }, - }; - unsigned int n, i; - - ww = cairo_image_surface_get_width (image); - hh = cairo_image_surface_get_height (image); - - glyphs = cairo_glyph_allocate (ww * hh); - if (glyphs == NULL) - return CAIRO_STATUS_NO_MEMORY; - - tx = (width - ww) / 2.; - ty = (height - hh) / 2.; - - cairo_set_font_size (cr, 5); - scaled_font = cairo_get_scaled_font (cr); - - for (i = 0; i < ARRAY_LENGTH (channel); i++) { - cairo_push_group_with_content (cr, CAIRO_CONTENT_ALPHA); - for (n = 0; n < 256; n++) { - cairo_status_t status; - int num_glyphs; - - status = _image_to_glyphs (image, channel[i].shift, n, - scaled_font, - tx, ty, glyphs, &num_glyphs); - if (status) { - cairo_glyph_free (glyphs); - return status; - } - - cairo_set_source_rgba (cr, - 0, 0, 0, - .15 + .85 * n / 255.); - cairo_show_glyphs (cr, glyphs, num_glyphs); - } - mask = cairo_pop_group (cr); - cairo_set_source_rgb (cr, - channel[i].red, - channel[i].green, - channel[i].blue); - cairo_mask (cr, mask); - cairo_pattern_destroy (mask); - } - - cairo_glyph_free (glyphs); - return CAIRO_STATUS_SUCCESS; -} - -static cairo_test_status_t -draw (cairo_t *cr, int width, int height) -{ - const cairo_test_context_t *ctx = cairo_test_get_context (cr); - cairo_surface_t *image; - cairo_status_t status; - - cairo_set_source_rgb (cr, 0, 0, 0); - cairo_paint (cr); - - image = cairo_test_create_surface_from_png (ctx, png_filename); - status = cairo_surface_status (image); - if (status) - return cairo_test_status_from_status (ctx, status); - - status = _render_image (cr, width, height, image); - cairo_surface_destroy (image); - - return cairo_test_status_from_status (ctx, status); -} - -CAIRO_TEST (mask_glyphs, - "Creates a mask using a distorted array of overlapping glyphs", - "mask, glyphs", /* keywords */ - "slow", /* requirements */ - WIDTH, HEIGHT, - NULL, draw) |