Use TouchGFX

Middlewares/ST/touchgfx/framework/tools/textconvert/Templates/UnmappedDataFont.cpp.temp

@@ -0,0 +1,152 @@
+/* DO NOT EDIT THIS FILE */
+/* This file is autogenerated by the text-database code generator */
+
+#include <touchgfx/hal/FlashDataReader.hpp>
+#include <fonts/ApplicationFontProvider.hpp>
+#include <fonts/UnmappedDataFont.hpp>
+
+namespace touchgfx
+{
+GlyphNode UnmappedDataFont::glyphNodeBuffer;
+
+UnmappedDataFont::UnmappedDataFont(const GlyphNode* glyphs, const uint16_t* unicodeList, uint16_t numGlyphs, uint16_t height, uint16_t baseline, uint8_t pixAboveTop, uint8_t pixBelowBottom, uint8_t bitsPerPixel, uint8_t byteAlignRow, uint8_t maxLeft, uint8_t maxRight, const uint8_t* const* glyphDataList, const KerningNode* kerningList, const Unicode::UnicodeChar fallbackChar, const Unicode::UnicodeChar ellipsisChar, const uint16_t* const gsubData, const FontContextualFormsTable* formsTable)
+    : Font(height, baseline, pixAboveTop, pixBelowBottom, bitsPerPixel, byteAlignRow, maxLeft, maxRight, fallbackChar, ellipsisChar),
+      glyphList(glyphs),
+      listSize(numGlyphs),
+      unicodes(unicodeList),
+      glyphDataList(glyphDataList),
+      kerningData(kerningList),
+      gsubTable(gsubData),
+      arabicTable(formsTable)
+{
+}
+
+const GlyphNode* UnmappedDataFont::getGlyph(Unicode::UnicodeChar unicode, const uint8_t*& pixelData, uint8_t& bitsPerPixel) const
+{
+    int index = lookupUnicode(unicode);
+
+    if (index != -1)
+    {
+        // Read glyphNode from unmapped flash
+        touchgfx::FlashDataReader* const flashReader = ApplicationFontProvider::getFlashReader();
+        if (flashReader)
+        {
+            flashReader->copyData(glyphList + index, &glyphNodeBuffer, sizeof(GlyphNode));
+
+            pixelData = getPixelData(const_cast<const GlyphNode*>(&glyphNodeBuffer));
+            bitsPerPixel = getBitsPerPixel();
+            return &glyphNodeBuffer;
+        }
+    }
+    return 0;
+}
+
+const uint8_t* UnmappedDataFont::getPixelData(const GlyphNode* glyph) const
+{
+    const uint8_t* const* table = (const uint8_t* const*)glyphDataList;
+    return &(table[glyph->unicode / 2048][glyph->dataOffset]);
+}
+
+int8_t UnmappedDataFont::getKerning(Unicode::UnicodeChar prevChar, const GlyphNode* glyph) const
+{
+    if (!glyph || glyph->kerningTableSize == 0)
+    {
+        return 0;
+    }
+
+    const KerningNode* kerndata = kerningData + glyph->kerningTablePos();
+    for (uint16_t i = glyph->kerningTableSize; i > 0; i--, kerndata++)
+    {
+        if (prevChar == kerndata->unicodePrevChar)
+        {
+            return kerndata->distance;
+        }
+        if (prevChar < kerndata->unicodePrevChar)
+        {
+            break;
+        }
+    }
+    return 0;
+}
+
+int UnmappedDataFont::lookupUnicode(uint16_t unicode) const
+{
+    int32_t min = 0;
+    int32_t max = listSize - 1;
+
+    int32_t mid = min + (unicode - unicodes[min]); // Linear up from [min].unicode
+    if (mid < min)
+    {
+        // Unicode < unicodes[min] => not found
+        return -1;
+    }
+    if (mid > max)
+    {
+        // Linear up ends too high
+        mid = max - (unicodes[max] - unicode); // Linear down from [max].unicode
+        if (mid > max)
+        {
+            // Unicode > unicodes[max] => not found
+            return -1;
+        }
+        if (mid < min)
+        {
+            // Linear down ends too low, take the middle element
+            mid = (min + max) / 2;
+        }
+    }
+    while (min <= max)
+    {
+        if (unicode == unicodes[mid])
+        {
+            // Found at [mid]
+            return mid;
+        }
+        if (unicode < unicodes[mid])
+        {
+            // Unicode is in lower half
+            max = mid - 1;
+            if (max < min)
+            {
+                // Range is empty => not found
+                break;
+            }
+            // We adjusted max, try linear down from [max].unicode
+            mid = max - (unicodes[max] - unicode);
+            if (mid > max)
+            {
+                // Unicode > [max].unicode => not found
+                break;
+            }
+            if (mid < min)
+            {
+                // Linear down ends too low, take the middle element
+                mid = (min + max) / 2;
+            }
+        }
+        else
+        {
+            // Unicode is in upper half
+            min = mid + 1;
+            if (min > max)
+            {
+                // Range is empty => not found
+                break;
+            }
+            // We adjusted min, try linear up from [min].unicode
+            mid = min + (unicode - unicodes[min]);
+            if (mid < min)
+            {
+                // Unicode < [min].unicode => not found
+                break;
+            }
+            if (mid > max)
+            {
+                // Linear up ends too high, take the middle element
+                mid = (min + max) / 2;
+            }
+        }
+    }
+    return -1;
+}
+} // namespace touchgfx