Dynamic selection of anti-aliasing procedures
First Claim
Patent Images
1. A computer-implemented method, comprising:
- receiving a plurality of glyphs to be rendered; and
for each glyph;
partially rendering the glyph using a first anti-aliasing procedure;
evaluating one or more characteristics of the glyph based on the partial rendering; and
selecting an anti-aliasing procedure from the first anti-aliasing procedure and one or more alternative anti-aliasing procedures based on the evaluation of the characteristics of the glyph; and
rendering the glyph based on the selected anti-aliasing procedure,wherein rendering the glyph includes;
discarding the partial rendering; and
rendering the glyph using one of the alternative anti-aliasing procedures.
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Accused Products
Abstract
Methods, apparatus, including computer program products, and systems implement and use techniques for rendering glyphs. A plurality of glyphs to be rendered are received. For each glyph, an anti-aliasing procedure is selected to render the glyph. The anti-aliasing procedure is selected from a first anti-aliasing procedure and one or more alternative anti-aliasing procedures. The anti-aliasing procedure for each glyph is selected based on the glyph.
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Citations
42 Claims
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1. A computer-implemented method, comprising:
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receiving a plurality of glyphs to be rendered; and for each glyph; partially rendering the glyph using a first anti-aliasing procedure; evaluating one or more characteristics of the glyph based on the partial rendering; and selecting an anti-aliasing procedure from the first anti-aliasing procedure and one or more alternative anti-aliasing procedures based on the evaluation of the characteristics of the glyph; and rendering the glyph based on the selected anti-aliasing procedure, wherein rendering the glyph includes; discarding the partial rendering; and rendering the glyph using one of the alternative anti-aliasing procedures. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A computer-implemented method, comprising:
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receiving a plurality of glyphs to be rendered; and for each glyph; partially rendering the glyph using a first anti-aliasing procedure; evaluating one or more characteristics of the glyph based on the partial rendering; and selecting an anti-aliasing procedure from the first anti-aliasing procedure and one or more alternative anti-aliasing procedures based on the evaluation of the characteristics of the glyph; and rendering the glyph based on the selected anti-aliasing procedure, wherein rendering the glyph includes; selecting one of the alternative anti-aliasing procedures; and rendering the glyph using the selected alternative anti-aliasing procedure and the partial rendering of the glyph from the first anti-aliasing procedure. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A computer-implemented method, comprising:
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receiving a plurality of glyphs to be rendered; and for each glyph; partially rendering the glyph using a first anti-aliasing procedure; evaluating one or more characteristics of the glyph based on the partial rendering; and selecting an anti-aliasing procedure from the first anti-aliasing procedure and one or more alternative anti-aliasing procedures based on the evaluation of the characteristics of the glyph, wherein; evaluating one or more characteristics of the glyph includes determining a complexity of the glyph and comparing the complexity to a predetermined threshold value; the glyph is to be rendered at a size; and the complexity is measured as a cumulative horizontal length of the glyph path divided by the size.
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14. A computer-implemented method for rendering a plurality of glyphs, comprising:
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partially rendering each glyph in a plurality of glyphs using a first anti-aliasing procedure; determining on a glyph-by-glyph basis a preferred anti-aliasing procedure for each glyph based on the denial rendering of the glyph; and rendering each glyph using the preferred anti-aliasing procedure determined for the glyph, wherein rendering a glyph includes; discarding the partial rendering; and rendering the glyph using one of the alternative anti-aliasing procedures. - View Dependent Claims (15, 16, 17)
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18. A computer-implemented method for rendering a plurality of glyphs, comprising:
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partially rendering each glyph in a plurality of glyphs using a first anti-aliasing procedure; determining on a glyph-by-glyph basis a preferred anti-aliasing procedure for each glyph based on the partial rendering of the glyph; and rendering each glyph using the preferred anti-aliasing procedure determined for the glyph, wherein rendering a glyph includes; determining the preferred anti-aliasing procedure to be one of the alternative anti-aliasing procedures; and rendering the glyph using the preferred alternative anti-aliasing procedure and the partial rendering of the glyph from the first anti-aliasing procedure. - View Dependent Claims (19, 20, 21)
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22. A computer program product, tangibly stored on a computer-readable medium, comprising instructions operable to cause a programmable processor to:
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receive a plurality of glyphs to be rendered; and for each glyph; partially render a glyph using the first anti-aliasing procedure; evaluate one or more characteristics of the glyph based on the partial rendering; and select an anti-aliasing procedure from the first anti-aliasing procedure and one or more alternative anti-aliasing procedures based on the evaluation of the characteristics of the glyph; and render the glyph based on the selected anti-aliasing procedure, wherein instructions operable to render the glyph include instructions operable to; discard the partial rendering; and render the glyph using one of the alternative anti-aliasing procedures. - View Dependent Claims (23, 24, 25, 26, 27)
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28. A computer program product, tangibly stored on a computer-readable medium, comprising instructions operable to cause a programmable processor to:
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receive a plurality of glyphs to be rendered; and for each glyph; partially render a glyph using the first anti-aliasing procedure; evaluate one or more characteristics of the glyph based on the partial rendering; and select an anti-aliasing procedure from the first anti-aliasing procedure and one or more alternative anti-aliasing procedures based on the evaluation of the characteristics of the glyph; and render the glyph based on the selected anti-aliasing procedure, wherein instructions operable to render the glyph include instructions operable to; select one of the alternative anti-aliasing procedures; and render the glyph using the selected alternative anti-aliasing procedure and the partial rendering of the glyph from the first anti-aliasing procedure. - View Dependent Claims (29, 30, 31, 32, 33)
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34. A computer program product, tangibly stored on a computer-readable medium, comprising instructions operable to cause a programmable processor to:
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receive a plurality of glyphs to be rendered; and for each glyph; partially render a glyph using the first anti-aliasing procedure; evaluate one or more characteristics of the glyph based on the partial rendering; and select an anti-aliasing procedure from the first anti-aliasing procedure and one or more alternative anti-aliasing procedures based on the evaluation of the characteristics of the glyph, wherein; instructions operable to evaluate one or more characteristics of the glyph include instructions operable to determine a complexity of the glyph and compare the complexity to a predetermined threshold value; the glyph is to be rendered at a size; and the complexity is measured as a cumulative horizontal length of the glyph path divided by the size.
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35. A computer program product, tangibly stored on a computer-readable medium, for rendering a plurality of glyphs, comprising instructions operable to cause a programmable processor to:
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partially render each glyph in a plurality of glyphs using a first anti-aliasing procedure; determine on a glyph-by-glyph basis a preferred anti-aliasing procedure for each glyph based on the partial of the glyph; and render each glyph using the preferred anti-aliasing procedure determined for the glyph, wherein instructions operable to render a glyph include instructions operable to; discard the partial rendering; and render the glyph using one of the alternative anti-aliasing procedures. - View Dependent Claims (36, 37, 38)
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39. A computer program product, tangibly stored on a computer-readable medium, for rendering a plurality of glyphs, comprising instructions operable to cause a programmable processor to:
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partially render each glyph in a plurality of glyph using a first anti-aliasing procedure; determine on a glyph-by-glyph basis a preferred anti-aliasing procedure for each glyph based on the partial rendering of the glyph; and render each glyph using the preferred anti-aliasing procedure determined for the glyph, wherein instructions operable to render a glyph include instructions operable to; determine the preferred anti-aliasing procedure to be one of the alternative anti-aliasing procedures; and render the glyph using the preferred alternative anti-aliasing procedure and the partial rendering of the glyph from the first anti-aliasing procedure. - View Dependent Claims (40, 41, 42)
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Specification