skia_text_raster_policy.hpp

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#pragma once
 
// SkSurfaceProps for a TextRasterPolicy. Every Skia surface Pulp creates for
// drawing goes through surface_props_for(), so the policy cannot reach one
// creation site and miss another.
 
#include <pulp/canvas/text_raster_policy.hpp>
 
#ifdef PULP_HAS_SKIA
 
#include "include/core/SkSurfaceProps.h"
 
#include <cstdint>
 
namespace pulp::canvas {

inline SkSurfaceProps surface_props_for(TextRasterPolicy policy, std::uint32_t flags = 0,
                                        SkPixelGeometry geometry = kUnknown_SkPixelGeometry) {
    if (policy == TextRasterPolicy::legacy && flags == 0 && geometry == kUnknown_SkPixelGeometry)
        return SkSurfaceProps();
    const TextRasterTuple tuple = text_raster_tuple(policy);
    return SkSurfaceProps(flags, geometry, tuple.contrast, tuple.gamma);
}

inline TextRasterPolicy text_raster_policy_of(const SkSurfaceProps& props) {
    return props.textContrast() == kChromiumTextRaster.contrast &&
                   props.textGamma() == kChromiumTextRaster.gamma
               ? TextRasterPolicy::chromium
               : TextRasterPolicy::legacy;
}
 
} // namespace pulp::canvas
 
#endif // PULP_HAS_SKIA