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Add test for SVG font palettes

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This commit is contained in:
Adrian Johnson 2023-01-21 17:45:00 +10:30
parent 3cc9e198fd
commit b68583ee54
7 changed files with 327 additions and 2 deletions
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2
src/cairo-svg-glyph-render.c
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@ -795,7 +795,7 @@ get_color (cairo_svg_glyph_render_t *svg_render,
if (end == s)
return FALSE;
if (svg_render->palette && entry > 0 && entry < svg_render->num_palette_entries) {
if (svg_render->palette && entry >= 0 && entry < svg_render->num_palette_entries) {
FT_Color *palette_color = &svg_render->palette[entry];
color->type = RGB;
color->red = palette_color->red / 255.0;

226
test/cairo-svg-test-palette.ttx Normal file
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@ -0,0 +1,226 @@
<?xml version="1.0" encoding="UTF-8"?>
<ttFont sfntVersion="\x00\x01\x00\x00" ttLibVersion="4.38">
<GlyphOrder>
<!-- The 'id' attribute is only for humans; it is ignored when parsed. -->
<GlyphID id="0" name=".notdef"/>
<GlyphID id="1" name="zero"/>
<GlyphID id="2" name="one"/>
</GlyphOrder>
<head>
<!-- Most of this table will be recalculated by the compiler -->
<tableVersion value="1.0"/>
<fontRevision value="1.0"/>
<checkSumAdjustment value="0xcb6df82"/>
<magicNumber value="0x5f0f3cf5"/>
<flags value="00000000 00000011"/>
<unitsPerEm value="1000"/>
<created value="Wed Jun 15 00:00:00 2022"/>
<modified value="Sat Jan 21 05:46:29 2023"/>
<xMin value="0"/>
<yMin value="0"/>
<xMax value="1000"/>
<yMax value="1000"/>
<macStyle value="00000000 00000000"/>
<lowestRecPPEM value="6"/>
<fontDirectionHint value="2"/>
<indexToLocFormat value="0"/>
<glyphDataFormat value="0"/>
</head>
<hhea>
<tableVersion value="0x00010000"/>
<ascent value="1000"/>
<descent value="0"/>
<lineGap value="200"/>
<advanceWidthMax value="1100"/>
<minLeftSideBearing value="0"/>
<minRightSideBearing value="100"/>
<xMaxExtent value="1000"/>
<caretSlopeRise value="1"/>
<caretSlopeRun value="0"/>
<caretOffset value="0"/>
<reserved0 value="0"/>
<reserved1 value="0"/>
<reserved2 value="0"/>
<reserved3 value="0"/>
<metricDataFormat value="0"/>
<numberOfHMetrics value="1"/>
</hhea>
<maxp>
<!-- Most of this table will be recalculated by the compiler -->
<tableVersion value="0x10000"/>
<numGlyphs value="3"/>
<maxPoints value="4"/>
<maxContours value="1"/>
<maxCompositePoints value="0"/>
<maxCompositeContours value="0"/>
<maxZones value="1"/>
<maxTwilightPoints value="0"/>
<maxStorage value="0"/>
<maxFunctionDefs value="0"/>
<maxInstructionDefs value="0"/>
<maxStackElements value="256"/>
<maxSizeOfInstructions value="1"/>
<maxComponentElements value="0"/>
<maxComponentDepth value="0"/>
</maxp>
<OS_2>
<!-- The fields 'usFirstCharIndex' and 'usLastCharIndex'
will be recalculated by the compiler -->
<version value="3"/>
<xAvgCharWidth value="1000"/>
<usWeightClass value="400"/>
<usWidthClass value="5"/>
<fsType value="00000000 00000001"/>
<ySubscriptXSize value="600"/>
<ySubscriptYSize value="600"/>
<ySubscriptXOffset value="0"/>
<ySubscriptYOffset value="75"/>
<ySuperscriptXSize value="600"/>
<ySuperscriptYSize value="600"/>
<ySuperscriptXOffset value="0"/>
<ySuperscriptYOffset value="300"/>
<yStrikeoutSize value="0"/>
<yStrikeoutPosition value="300"/>
<sFamilyClass value="0"/>
<panose>
<bFamilyType value="0"/>
<bSerifStyle value="0"/>
<bWeight value="0"/>
<bProportion value="0"/>
<bContrast value="0"/>
<bStrokeVariation value="0"/>
<bArmStyle value="0"/>
<bLetterForm value="0"/>
<bMidline value="0"/>
<bXHeight value="0"/>
</panose>
<ulUnicodeRange1 value="00000000 00000000 00000000 00000001"/>
<ulUnicodeRange2 value="00000000 00000000 00000000 00000000"/>
<ulUnicodeRange3 value="00000000 00000000 00000000 00000000"/>
<ulUnicodeRange4 value="00000000 00000000 00000000 00000000"/>
<achVendID value="djr "/>
<fsSelection value="00000000 01000000"/>
<usFirstCharIndex value="48"/>
<usLastCharIndex value="49"/>
<sTypoAscender value="1000"/>
<sTypoDescender value="0"/>
<sTypoLineGap value="200"/>
<usWinAscent value="1000"/>
<usWinDescent value="300"/>
<ulCodePageRange1 value="00000000 00000000 00000000 00000001"/>
<ulCodePageRange2 value="00000000 00000000 00000000 00000000"/>
<sxHeight value="500"/>
<sCapHeight value="720"/>
<usDefaultChar value="0"/>
<usBreakChar value="32"/>
<usMaxContext value="3"/>
</OS_2>
<hmtx>
<mtx name=".notdef" width="1100" lsb="0"/>
<mtx name="one" width="1100" lsb="0"/>
<mtx name="zero" width="1100" lsb="0"/>
</hmtx>
<cmap>
<tableVersion version="0"/>
<cmap_format_4 platformID="0" platEncID="3" language="0">
<map code="0x30" name="zero"/><!-- DIGIT ZERO -->
<map code="0x31" name="one"/><!-- DIGIT ONE -->
</cmap_format_4>
</cmap>
<loca>
<!-- The 'loca' table will be calculated by the compiler -->
</loca>
<glyf>
<!-- The xMin, yMin, xMax and yMax values
will be recalculated by the compiler. -->
<TTGlyph name=".notdef"/><!-- contains no outline data -->
<TTGlyph name="one" xMin="0" yMin="0" xMax="1000" yMax="1000">
<contour>
<pt x="0" y="0" on="1"/>
<pt x="0" y="1000" on="1"/>
<pt x="1000" y="1000" on="1"/>
<pt x="1000" y="0" on="1"/>
</contour>
<instructions/>
</TTGlyph>
<TTGlyph name="zero" xMin="0" yMin="0" xMax="1000" yMax="1000">
<contour>
<pt x="0" y="0" on="1"/>
<pt x="0" y="1000" on="1"/>
<pt x="1000" y="1000" on="1"/>
<pt x="1000" y="0" on="1"/>
</contour>
<instructions/>
</TTGlyph>
</glyf>
<name>
<namerecord nameID="1" platformID="3" platEncID="1" langID="0x409">
Cairo Svg Test Palette
</namerecord>
<namerecord nameID="2" platformID="3" platEncID="1" langID="0x409">
Regular
</namerecord>
<namerecord nameID="4" platformID="3" platEncID="1" langID="0x409">
Cairo Svg Test Palette Regular
</namerecord>
</name>
<post>
<formatType value="3.0"/>
<italicAngle value="0.0"/>
<underlinePosition value="0"/>
<underlineThickness value="0"/>
<isFixedPitch value="0"/>
<minMemType42 value="0"/>
<maxMemType42 value="0"/>
<minMemType1 value="0"/>
<maxMemType1 value="0"/>
</post>
<CPAL>
<version value="0"/>
<numPaletteEntries value="2"/>
<palette index="0">
<color index="0" value="#C5A1D7FF"/>
<color index="1" value="#80DFC8FF"/>
</palette>
<palette index="1">
<color index="0" value="#6392A9FF"/>
<color index="1" value="#7896B3FF"/>
</palette>
</CPAL>
<SVG>
<svgDoc endGlyphID="0" startGlyphID="0">
<![CDATA[<svg xmlns="http://www.w3.org/2000/svg"></svg>]]>
</svgDoc>
<svgDoc endGlyphID="1" startGlyphID="1">
<![CDATA[<svg version="1.1" xmlns="http://www.w3.org/2000/svg">
<rect x="100" y="-750" width="800" height="500"
fill="var(--color0, red)" />
</svg>]]>
</svgDoc>
<svgDoc endGlyphID="2" startGlyphID="2">
<![CDATA[<svg version="1.1" xmlns="http://www.w3.org/2000/svg">
<rect x="100" y="-750" width="800" height="500"
fill="var(--color1, blue)" />
</svg>]]>
</svgDoc>
</SVG>
</ttFont>

89
test/ft-svg-render-palette.c Normal file
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@ -0,0 +1,89 @@
/*
* Copyright © 2023 Adrian Johnson
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Author: Adrian Johnson <ajohnson@redneon.com>
*/
#include "cairo-test.h"
#include <cairo-ft.h>
#define FONT_SIZE 50
#define MARGIN 5
#define WIDTH (FONT_SIZE*8 + MARGIN*9)
#define HEIGHT (FONT_SIZE + MARGIN*2)
#define FONT_FILE "cairo-svg-test-palette.ttf"
#define TEXT "01"
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_test_status_t result;
cairo_font_options_t *font_options;
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_paint (cr);
cairo_set_source_rgb (cr, 0, 0, 0);
result = cairo_test_ft_select_font_from_file (cr, FONT_FILE);
if (result)
return result;
cairo_set_font_size (cr, FONT_SIZE);
cairo_move_to (cr, MARGIN, FONT_SIZE + MARGIN);
font_options = cairo_font_options_create ();
/* Default palette */
cairo_show_text (cr, TEXT);
/* Palette 1 */
cairo_font_options_set_color_palette (font_options, 1);
cairo_set_font_options (cr, font_options);
cairo_show_text (cr, TEXT);
/* Palette 0, override color 0 */
cairo_font_options_set_color_palette (font_options, 0);
cairo_font_options_set_custom_palette_color (font_options, 0, 1, 0, 1, 0.5);
cairo_set_font_options (cr, font_options);
cairo_show_text (cr, TEXT);
/* Palette 1, override color 1 */
cairo_font_options_set_color_palette (font_options, 1);
cairo_font_options_set_custom_palette_color (font_options, 1, 0, 1, 1, 0.5);
cairo_set_font_options (cr, font_options);
cairo_show_text (cr, TEXT);
cairo_font_options_destroy (font_options);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (ft_svg_render_palette,
"Test cairo SVG font palettes",
"svgrender", /* keywords */
NULL, /* requirements */
WIDTH, HEIGHT,
NULL, draw)

4
test/meson.build
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@ -435,7 +435,8 @@ test_ft_svg_font_sources = [
test_ft_svg_ttx_font_sources = [
'ft-svg-cairo-logo.c',
'ft-svg-render.c'
'ft-svg-render.c',
'ft-svg-render-palette.c'
]
test_gl_sources = [
@ -534,6 +535,7 @@ test_ttx_fonts = [
'cairo-svg-test-doc.ttx',
'cairo-svg-test-fill.ttx',
'cairo-svg-test-gradient.ttx',
'cairo-svg-test-palette.ttx',
'cairo-svg-test-path.ttx',
'cairo-svg-test-shapes.ttx',
'cairo-svg-test-stroke.ttx',

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test/reference/ft-svg-render-palette.ref.png Normal file
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4
test/svg/palette.0.color0.svg Normal file
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@ -0,0 +1,4 @@
<svg version="1.1" xmlns="http://www.w3.org/2000/svg">
<rect x="100" y="-750" width="800" height="500"
fill="var(--color0, red)" />
</svg>
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4
test/svg/palette.1.color1.svg Normal file
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@ -0,0 +1,4 @@
<svg version="1.1" xmlns="http://www.w3.org/2000/svg">
<rect x="100" y="-750" width="800" height="500"
fill="var(--color1, blue)" />
</svg>
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