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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "ui/gfx/harfbuzz_font_skia.h" | 5 #include "ui/gfx/harfbuzz_font_skia.h" |
| 6 | 6 |
| 7 #include <stddef.h> | 7 #include <stddef.h> |
| 8 #include <stdint.h> | 8 #include <stdint.h> |
| 9 | 9 |
| 10 #include <limits> | 10 #include <limits> |
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| 125 SkTypeface* typeface = font_data->paint_.getTypeface(); | 125 SkTypeface* typeface = font_data->paint_.getTypeface(); |
| 126 const uint16_t glyphs[2] = { static_cast<uint16_t>(first_glyph), | 126 const uint16_t glyphs[2] = { static_cast<uint16_t>(first_glyph), |
| 127 static_cast<uint16_t>(second_glyph) }; | 127 static_cast<uint16_t>(second_glyph) }; |
| 128 int32_t kerning_adjustments[1] = { 0 }; | 128 int32_t kerning_adjustments[1] = { 0 }; |
| 129 | 129 |
| 130 if (!typeface->getKerningPairAdjustments(glyphs, 2, kerning_adjustments)) | 130 if (!typeface->getKerningPairAdjustments(glyphs, 2, kerning_adjustments)) |
| 131 return 0; | 131 return 0; |
| 132 | 132 |
| 133 SkScalar upm = SkIntToScalar(typeface->getUnitsPerEm()); | 133 SkScalar upm = SkIntToScalar(typeface->getUnitsPerEm()); |
| 134 SkScalar size = font_data->paint_.getTextSize(); | 134 SkScalar size = font_data->paint_.getTextSize(); |
| 135 return SkiaScalarToHarfBuzzUnits( | 135 return SkiaScalarToHarfBuzzUnits(SkIntToScalar(kerning_adjustments[0]) * |
| 136 SkScalarMulDiv(SkIntToScalar(kerning_adjustments[0]), size, upm)); | 136 size / upm); |
| 137 } | 137 } |
| 138 | 138 |
| 139 hb_position_t GetGlyphHorizontalKerning(hb_font_t* font, | 139 hb_position_t GetGlyphHorizontalKerning(hb_font_t* font, |
| 140 void* data, | 140 void* data, |
| 141 hb_codepoint_t left_glyph, | 141 hb_codepoint_t left_glyph, |
| 142 hb_codepoint_t right_glyph, | 142 hb_codepoint_t right_glyph, |
| 143 void* user_data) { | 143 void* user_data) { |
| 144 FontData* font_data = reinterpret_cast<FontData*>(data); | 144 FontData* font_data = reinterpret_cast<FontData*>(data); |
| 145 if (font_data->paint_.isVerticalText()) { | 145 if (font_data->paint_.isVerticalText()) { |
| 146 // We don't support cross-stream kerning. | 146 // We don't support cross-stream kerning. |
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| 279 // TODO(ckocagil): Do we need to update these params later? | 279 // TODO(ckocagil): Do we need to update these params later? |
| 280 internal::ApplyRenderParams(params, subpixel_rendering_suppressed, | 280 internal::ApplyRenderParams(params, subpixel_rendering_suppressed, |
| 281 &hb_font_data->paint_); | 281 &hb_font_data->paint_); |
| 282 hb_font_set_funcs(harfbuzz_font, g_font_funcs.Get().get(), hb_font_data, | 282 hb_font_set_funcs(harfbuzz_font, g_font_funcs.Get().get(), hb_font_data, |
| 283 DeleteByType<FontData>); | 283 DeleteByType<FontData>); |
| 284 hb_font_make_immutable(harfbuzz_font); | 284 hb_font_make_immutable(harfbuzz_font); |
| 285 return harfbuzz_font; | 285 return harfbuzz_font; |
| 286 } | 286 } |
| 287 | 287 |
| 288 } // namespace gfx | 288 } // namespace gfx |
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