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[test] Add scale-offset-(similar|image)
Add a test case for the scaling bug reported by Michel Iwaniec: http://lists.cairographics.org/archives/cairo/2008-November/015660.html
This commit is contained in:
Chris Wilson
parent
aad9809003
commit
8855f9583e
7 changed files with 291 additions and 0 deletions
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@ -141,6 +141,8 @@ test_sources = \
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rgb24-ignore-alpha.c \
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rotate-image-surface-paint.c \
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scale-down-source-surface-paint.c \
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scale-offset-image.c \
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scale-offset-similar.c \
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scale-source-surface-paint.c \
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stroke-ctm-caps.c \
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stroke-image.c \
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@ -812,6 +814,10 @@ REFERENCE_IMAGES = \
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rotate-image-surface-paint.svg12.ref.png \
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rotate-image-surface-paint.svg11.ref.png \
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scale-down-source-surface-paint.ref.png \
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scale-offset-image.ref.png \
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scale-offset-image.ps.ref.png \
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scale-offset-similar.ref.png \
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scale-offset-similar.ps.ref.png \
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scale-source-surface-paint.pdf.argb32.ref.png \
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scale-source-surface-paint.ref.png \
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scale-source-surface-paint.rgb24.ref.png \
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142
test/scale-offset-image.c
Normal file
142
test/scale-offset-image.c
Normal file
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@ -0,0 +1,142 @@
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/*
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* Copyright 2008 Chris Wilson
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* Chris Wilson not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Chris Wilson makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Chris Wilson <chris@chris-wilson.co.uk>
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*/
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/*
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* Test case derived from the bug report by Michel Iwaniec:
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* http://lists.cairographics.org/archives/cairo/2008-November/015660.html
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*/
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#include "cairo-test.h"
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static cairo_surface_t *
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create_source (cairo_surface_t *target, int width, int height)
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{
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cairo_surface_t *similar;
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cairo_t *cr;
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similar = cairo_image_surface_create (CAIRO_FORMAT_RGB24,
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width, height);
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cr = cairo_create (similar);
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cairo_surface_destroy (similar);
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_rectangle (cr,
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width - 4, height - 4,
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2, 2);
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cairo_fill (cr);
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cairo_set_source_rgb (cr, 1, 0, 0);
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cairo_rectangle (cr,
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width - 2, height - 4,
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2, 2);
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cairo_fill (cr);
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cairo_set_source_rgb (cr, 0, 1, 0);
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cairo_rectangle (cr,
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width - 4, height - 2,
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2, 2);
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cairo_fill (cr);
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cairo_set_source_rgb (cr, 0, 0, 1);
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cairo_rectangle (cr,
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width - 2, height - 2,
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2, 2);
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cairo_fill (cr);
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similar = cairo_surface_reference (cairo_get_target (cr));
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cairo_destroy (cr);
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return similar;
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}
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static void
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draw_grid (cairo_t *cr, cairo_pattern_t *pattern, int dst_x, int dst_y)
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{
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cairo_matrix_t m;
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cairo_save (cr);
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cairo_translate (cr, dst_x, dst_y);
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cairo_scale (cr, 16, 16);
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cairo_rotate (cr, 1);
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cairo_matrix_init_translate (&m, 2560-4, 1280-4);
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cairo_pattern_set_matrix (pattern, &m);
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cairo_set_source (cr, pattern);
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cairo_rectangle (cr, 0, 0, 4, 4);
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cairo_fill (cr);
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cairo_set_source_rgb (cr, .7, .7, .7);
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cairo_set_line_width (cr, 1./16);
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cairo_move_to (cr, 0, 0);
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cairo_line_to (cr, 4, 0);
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cairo_move_to (cr, 0, 2);
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cairo_line_to (cr, 4, 2);
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cairo_move_to (cr, 0, 4);
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cairo_line_to (cr, 4, 4);
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cairo_move_to (cr, 0, 0);
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cairo_line_to (cr, 0, 4);
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cairo_move_to (cr, 2, 0);
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cairo_line_to (cr, 2, 4);
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cairo_move_to (cr, 4, 0);
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cairo_line_to (cr, 4, 4);
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cairo_stroke (cr);
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cairo_restore (cr);
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}
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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cairo_surface_t *source;
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cairo_pattern_t *pattern;
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cairo_paint (cr);
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source = create_source (cairo_get_target (cr), 2560, 1280);
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pattern = cairo_pattern_create_for_surface (source);
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cairo_surface_destroy (source);
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cairo_pattern_set_filter (pattern, CAIRO_FILTER_NEAREST);
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cairo_pattern_set_extend (pattern, CAIRO_EXTEND_NONE);
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draw_grid (cr, pattern, 50, 0);
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draw_grid (cr, pattern, 130, 0);
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draw_grid (cr, pattern, 210, 0);
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draw_grid (cr, pattern, 290, 0);
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draw_grid (cr, pattern, 50, 230);
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draw_grid (cr, pattern, 130, 230);
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draw_grid (cr, pattern, 210, 230);
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draw_grid (cr, pattern, 290, 230);
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cairo_pattern_destroy (pattern);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (scale_offset_image,
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"Tests drawing surfaces under various scales and transforms",
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"XFAIL=!ps surface scale-offset", /* keywords */
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NULL, /* requirements */
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320, 320,
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NULL, draw)
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BIN
test/scale-offset-image.ps.ref.png
Normal file
BIN
test/scale-offset-image.ps.ref.png
Normal file
Binary file not shown.
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After Width: | Height: | Size: 7.3 KiB |
BIN
test/scale-offset-image.ref.png
Normal file
BIN
test/scale-offset-image.ref.png
Normal file
Binary file not shown.
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After Width: | Height: | Size: 9.8 KiB |
143
test/scale-offset-similar.c
Normal file
143
test/scale-offset-similar.c
Normal file
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@ -0,0 +1,143 @@
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/*
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* Copyright 2008 Chris Wilson
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* Chris Wilson not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Chris Wilson makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Chris Wilson <chris@chris-wilson.co.uk>
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*/
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/*
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* Test case derived from the bug report by Michel Iwaniec:
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* http://lists.cairographics.org/archives/cairo/2008-November/015660.html
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*/
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#include "cairo-test.h"
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static cairo_surface_t *
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create_source (cairo_surface_t *target, int width, int height)
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{
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cairo_surface_t *similar;
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cairo_t *cr;
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similar = cairo_surface_create_similar (target,
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CAIRO_CONTENT_COLOR,
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width, height);
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cr = cairo_create (similar);
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cairo_surface_destroy (similar);
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_rectangle (cr,
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width - 4, height - 4,
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2, 2);
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cairo_fill (cr);
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cairo_set_source_rgb (cr, 1, 0, 0);
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cairo_rectangle (cr,
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width - 2, height - 4,
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2, 2);
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cairo_fill (cr);
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cairo_set_source_rgb (cr, 0, 1, 0);
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cairo_rectangle (cr,
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width - 4, height - 2,
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2, 2);
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cairo_fill (cr);
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cairo_set_source_rgb (cr, 0, 0, 1);
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cairo_rectangle (cr,
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width - 2, height - 2,
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2, 2);
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cairo_fill (cr);
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similar = cairo_surface_reference (cairo_get_target (cr));
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cairo_destroy (cr);
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return similar;
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}
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static void
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draw_grid (cairo_t *cr, cairo_pattern_t *pattern, int dst_x, int dst_y)
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{
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cairo_matrix_t m;
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cairo_save (cr);
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cairo_translate (cr, dst_x, dst_y);
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cairo_scale (cr, 16, 16);
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cairo_rotate (cr, 1);
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cairo_matrix_init_translate (&m, 2560-4, 1280-4);
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cairo_pattern_set_matrix (pattern, &m);
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cairo_set_source (cr, pattern);
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cairo_rectangle (cr, 0, 0, 4, 4);
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cairo_fill (cr);
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cairo_set_source_rgb (cr, .7, .7, .7);
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cairo_set_line_width (cr, 1./16);
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cairo_move_to (cr, 0, 0);
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cairo_line_to (cr, 4, 0);
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cairo_move_to (cr, 0, 2);
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cairo_line_to (cr, 4, 2);
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cairo_move_to (cr, 0, 4);
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cairo_line_to (cr, 4, 4);
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cairo_move_to (cr, 0, 0);
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cairo_line_to (cr, 0, 4);
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cairo_move_to (cr, 2, 0);
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cairo_line_to (cr, 2, 4);
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cairo_move_to (cr, 4, 0);
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cairo_line_to (cr, 4, 4);
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cairo_stroke (cr);
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cairo_restore (cr);
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}
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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cairo_surface_t *source;
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cairo_pattern_t *pattern;
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cairo_paint (cr);
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source = create_source (cairo_get_target (cr), 2560, 1280);
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pattern = cairo_pattern_create_for_surface (source);
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cairo_surface_destroy (source);
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cairo_pattern_set_filter (pattern, CAIRO_FILTER_NEAREST);
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cairo_pattern_set_extend (pattern, CAIRO_EXTEND_NONE);
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draw_grid (cr, pattern, 50, 0);
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draw_grid (cr, pattern, 130, 0);
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draw_grid (cr, pattern, 210, 0);
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draw_grid (cr, pattern, 290, 0);
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draw_grid (cr, pattern, 50, 230);
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draw_grid (cr, pattern, 130, 230);
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draw_grid (cr, pattern, 210, 230);
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draw_grid (cr, pattern, 290, 230);
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cairo_pattern_destroy (pattern);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (scale_offset_similar,
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"Tests drawing surfaces under various scales and transforms",
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"XFAIL=!ps surface scale-offset", /* keywords */
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NULL, /* requirements */
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320, 320,
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NULL, draw)
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BIN
test/scale-offset-similar.ps.ref.png
Normal file
BIN
test/scale-offset-similar.ps.ref.png
Normal file
Binary file not shown.
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After Width: | Height: | Size: 7.6 KiB |
BIN
test/scale-offset-similar.ref.png
Normal file
BIN
test/scale-offset-similar.ref.png
Normal file
Binary file not shown.
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After Width: | Height: | Size: 9.8 KiB |
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