// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later

#include <algorithm>
#include <cmath>
#include <cstddef>
#include <cstring>
#include <limits>
#include <new>

#include <ft2build.h>
#include FT_FREETYPE_H

#include "prx/libSceFont/include/FontInternal.hpp"

namespace {

using namespace Font;

constexpr std::uint16_t GENERATE_GLYPH_DETAIL_ID = 0x0FD3;

std::uint16_t ClampToU16(float value) {
    if (value <= 0.0f) return 0;
    return static_cast<std::uint16_t>(std::lround(std::min(value, static_cast<float>(std::numeric_limits<std::uint16_t>::max()))));
}

std::uint8_t* LayoutCacheBytes(FontHandleNative* font) {
    return reinterpret_cast<std::uint8_t*>(&font->cached_style) + offsetof(CachedStyle, layout_cache_bytes);
}

RenderSurfaceSystemUse* SurfaceSystemUse(FontRenderSurface* surface) {
    return reinterpret_cast<RenderSurfaceSystemUse*>(surface->reserved_q);
}

bool SurfaceScaleFrame(FontRenderSurface* surface, StyleStateBlock& state, int& rc) {
    if (!surface || (surface->styleFlag & 0x1) == 0) return false;
    const FontStyleFrame* frame = SurfaceSystemUse(surface)->styleframe;
    if (!frame || (frame->flags1 & STYLE_FRAME_FLAG_SCALE) == 0) return false;
    state = {};
    state.dpi_x = frame->hDpi;
    state.dpi_y = frame->vDpi;
    if ((frame->flags1 & STYLE_FRAME_FLAG_SLANT) != 0) state.slant_ratio = frame->slantRatio;
    if ((frame->flags1 & STYLE_FRAME_FLAG_WEIGHT) != 0) {
        state.effect_weight_x = frame->effectWeightX;
        state.effect_weight_y = frame->effectWeightY;
    }
    StyleStateBlock frameScale{};
    frameScale.dpi_x = frame->hDpi;
    frameScale.dpi_y = frame->vDpi;
    frameScale.scale_unit = frame->scaleUnit;
    frameScale.scale_w = frame->scalePixelW;
    frameScale.scale_h = frame->scalePixelH;
    rc = StyleStateGetScalePixel(&frameScale, &state.scale_w, &state.scale_h);
    return true;
}

int CachedBaseline(FontHandle handle, FontHandleNative* font, float& baseline) {
    int rc = SCE_FONT_OK;
    const std::uint8_t flags = CachedStyleCacheFlags(font->cached_style);
    if ((flags & 0x1) == 0) {
        rc = ComputeHorizontalLayout(handle, &font->cached_style.state, LayoutCacheBytes(font));
        if (rc == SCE_FONT_OK) CachedStyleSetCacheFlags(font->cached_style, static_cast<std::uint8_t>(flags | 0x1));
    }
    if (rc == SCE_FONT_OK) baseline = LoadFloat(LayoutCacheBytes(font), HORIZONTAL_BASELINE);
    return rc;
}

int CachedColumnOffset(FontHandle handle, FontHandleNative* font, float& offset) {
    int rc = SCE_FONT_OK;
    const std::uint8_t flags = CachedStyleCacheFlags(font->cached_style);
    if ((flags & 0x2) == 0) {
        std::uint8_t layout[VERTICAL_LAYOUT_SIZE] = {};
        rc = ComputeVerticalLayout(handle, &font->cached_style.state, layout);
        if (rc == SCE_FONT_OK) {
            offset = LoadFloat(layout, VERTICAL_BASELINE_OFFSET_X);
            CachedStyleSetScalar(font->cached_style, offset);
            CachedStyleSetCacheFlags(font->cached_style, static_cast<std::uint8_t>(flags | 0x2));
        }
    }
    if (rc == SCE_FONT_OK && (CachedStyleCacheFlags(font->cached_style) & 0x2) != 0) offset = CachedStyleGetScalar(font->cached_style);
    return rc;
}

void LoadKerning(FT_Face face, float scaleW, float scaleH, std::uint32_t preCode, std::uint32_t code, FontKerning* kerning) {
    const FT_UInt previousGlyph = face ? FT_Get_Char_Index(face, preCode) : 0;
    const FT_UInt glyph = face ? FT_Get_Char_Index(face, code) : 0;
    if (!face || previousGlyph == 0 || glyph == 0) return;
    const auto charW = static_cast<FT_F26Dot6>(static_cast<std::int32_t>(scaleW * 64.0f));
    const auto charH = static_cast<FT_F26Dot6>(static_cast<std::int32_t>(scaleH * 64.0f));
    FT_Set_Char_Size(face, charW, charH, 72, 72);
    FT_Vector delta{};
    FT_Get_Kerning(face, previousGlyph, glyph, FT_KERNING_DEFAULT, &delta);
    kerning->offsetX = static_cast<float>(delta.x) / 64.0f;
}

int RenderDirectional(FontHandle fontHandle, std::uint32_t code, FontRenderSurface* surface, float x, float y, FontGlyphMetrics* metrics, FontRenderOutput* result, std::uint16_t direction) {
    auto* font = GetNativeFont(fontHandle);
    if (!font || font->magic != HANDLE_MAGIC) {
        ClearRenderOutputs(metrics, result);
        return SCE_FONT_ERROR_INVALID_FONT_HANDLE;
    }
    if (code == 0) {
        ClearRenderOutputs(metrics, result);
        return SCE_FONT_ERROR_NO_SUPPORT_CODE;
    }
    if (!surface || !metrics || !result) {
        ClearRenderOutputs(metrics, result);
        return SCE_FONT_ERROR_INVALID_PARAMETER;
    }
    std::uint32_t fontLock = 0;
    if (!AcquireFontLock(font, fontLock)) {
        ClearRenderOutputs(metrics, result);
        return SCE_FONT_ERROR_INVALID_FONT_HANDLE;
    }
    CachedStyleSetDirectionWord(font->cached_style, direction);
    const int rc = RenderCharGlyphImageCore(fontHandle, code, surface, x, y, metrics, result);
    ReleaseFontLock(font, fontLock);
    if (rc != SCE_FONT_OK) ClearRenderOutputs(metrics, result);
    return rc;
}

}

#pragma GCC visibility push(default)

extern "C" {

int APS5_VABI sceFontGetCharGlyphMetrics(FontHandle fontHandle, std::uint32_t code, FontGlyphMetrics* metrics) {
    return GetCharGlyphMetrics(fontHandle, code, metrics, false);
}

int APS5_VABI sceFontGetRenderCharGlyphMetrics(FontHandle fontHandle, std::uint32_t code, FontGlyphMetrics* metrics) {
    return GetCharGlyphMetrics(fontHandle, code, metrics, true);
}

int APS5_VABI sceFontGetHorizontalLayout(FontHandle fontHandle, FontHorizontalLayout* layout) {
    auto* font = GetNativeFont(fontHandle);
    std::uint32_t fontLock = 0;
    if (!font || font->magic != HANDLE_MAGIC || !AcquireFontLock(font, fontLock)) {
        if (layout) *layout = {};
        return SCE_FONT_ERROR_INVALID_FONT_HANDLE;
    }
    if (!layout) {
        ReleaseFontLock(font, fontLock);
        return SCE_FONT_ERROR_INVALID_PARAMETER;
    }
    std::uint8_t blocks[HORIZONTAL_LAYOUT_SIZE] = {};
    const int rc = ComputeHorizontalLayout(fontHandle, &font->style, blocks);
    ReleaseFontLock(font, fontLock);
    if (rc != SCE_FONT_OK) {
        *layout = {};
        return rc;
    }
    layout->baselineOffset = LoadFloat(blocks, HORIZONTAL_BASELINE);
    layout->lineAdvance = LoadFloat(blocks, HORIZONTAL_LINE_ADVANCE);
    layout->decorationExtent = LoadFloat(blocks, HORIZONTAL_EFFECT_HEIGHT);
    return SCE_FONT_OK;
}

int APS5_VABI sceFontGetVerticalLayout(FontHandle fontHandle, FontVerticalLayout* layout) {
    int rc = SCE_FONT_ERROR_INVALID_FONT_HANDLE;
    auto* font = GetNativeFont(fontHandle);
    std::uint32_t fontLock = 0;
    if (font && font->magic == HANDLE_MAGIC && AcquireFontLock(font, fontLock)) {
        if (!layout) {
            rc = SCE_FONT_ERROR_INVALID_PARAMETER;
        } else {
            std::uint8_t blocks[VERTICAL_LAYOUT_SIZE] = {};
            rc = ComputeVerticalLayout(fontHandle, &font->style, blocks);
            if (rc == SCE_FONT_OK) {
                layout->baselineOffsetX = LoadFloat(blocks, VERTICAL_BASELINE_OFFSET_X);
                layout->columnAdvance = LoadFloat(blocks, VERTICAL_COLUMN_ADVANCE);
                layout->decorationSpan = LoadFloat(blocks, VERTICAL_DECORATION_SPAN);
            }
        }
        ReleaseFontLock(font, fontLock);
        if (rc == SCE_FONT_OK) return rc;
    }
    if (layout) *layout = {};
    return rc;
}

int APS5_VABI sceFontGetKerning(FontHandle fontHandle, std::uint32_t preCode, std::uint32_t code, FontKerning* kerning) {
    if (!kerning) return SCE_FONT_ERROR_INVALID_PARAMETER;
    auto* font = GetNativeFont(fontHandle);
    std::uint32_t fontLock = 0;
    if (!font || font->magic != HANDLE_MAGIC || !AcquireFontLock(font, fontLock)) return SCE_FONT_ERROR_INVALID_FONT_HANDLE;
    *kerning = {};
    const FontState* state = TryGetState(fontHandle);
    if (state) LoadKerning(state->face, state->scaleW, state->scaleH, preCode, code, kerning);
    ReleaseFontLock(font, fontLock);
    return SCE_FONT_OK;
}

int APS5_VABI sceFontGetRenderScaledKerning(FontHandle fontHandle, std::uint32_t preCode, std::uint32_t code, FontKerning* kerning) {
    if (!kerning) return SCE_FONT_ERROR_INVALID_PARAMETER;
    *kerning = {};
    auto* font = GetNativeFont(fontHandle);
    std::uint32_t fontLock = 0;
    if (!font || font->magic != HANDLE_MAGIC || !AcquireFontLock(font, fontLock)) return SCE_FONT_ERROR_INVALID_FONT_HANDLE;
    std::uint32_t cachedLock = 0;
    if (!AcquireCachedStyleLock(font, cachedLock)) {
        ReleaseFontLock(font, fontLock);
        return SCE_FONT_ERROR_INVALID_FONT_HANDLE;
    }
    int rc = SCE_FONT_ERROR_NOT_BOUND_RENDERER;
    if (font->renderer) {
        float scaleW = 0.0f;
        float scaleH = 0.0f;
        rc = StyleStateGetScalePixel(&font->cached_style.state, &scaleW, &scaleH);
        const FontState* state = TryGetState(fontHandle);
        if (rc == SCE_FONT_OK && state) LoadKerning(state->face, scaleW, scaleH, preCode, code, kerning);
    }
    ReleaseCachedStyleLock(font, cachedLock);
    ReleaseFontLock(font, fontLock);
    return rc;
}

int APS5_VABI sceFontRenderCharGlyphImage(FontHandle fontHandle, std::uint32_t code, FontRenderSurface* surface, float x, float y, FontGlyphMetrics* metrics, FontRenderOutput* result) {
    auto* font = GetNativeFont(fontHandle);
    std::uint32_t fontLock = 0;
    if (!font || font->magic != HANDLE_MAGIC || !AcquireFontLock(font, fontLock)) {
        ClearRenderOutputs(metrics, result);
        return SCE_FONT_ERROR_INVALID_FONT_HANDLE;
    }
    int preRc = SCE_FONT_OK;
    StyleStateBlock frameState{};
    const bool horizontal = static_cast<std::int16_t>(font->flags) >= 0;
    float xUsed = x;
    float yUsed = y;
    if (horizontal) {
        float baseline = 0.0f;
        if (!SurfaceScaleFrame(surface, frameState, preRc)) {
            preRc = CachedBaseline(fontHandle, font, baseline);
        } else {
            std::uint8_t layout[HORIZONTAL_LAYOUT_SIZE] = {};
            if (preRc == SCE_FONT_OK) preRc = ComputeHorizontalLayout(fontHandle, &frameState, layout);
            if (preRc == SCE_FONT_OK) {
                baseline = LoadFloat(layout, HORIZONTAL_BASELINE);
                SurfaceSystemUse(surface)->catchedScale = baseline;
            }
        }
        yUsed = y + baseline;
        CachedStyleSetDirectionWord(font->cached_style, 1);
    } else {
        float offset = 0.0f;
        if (!SurfaceScaleFrame(surface, frameState, preRc)) {
            preRc = CachedColumnOffset(fontHandle, font, offset);
        } else {
            std::uint8_t layout[VERTICAL_LAYOUT_SIZE] = {};
            if (preRc == SCE_FONT_OK) preRc = ComputeVerticalLayout(fontHandle, &frameState, layout);
            if (preRc == SCE_FONT_OK) {
                offset = LoadFloat(layout, VERTICAL_BASELINE_OFFSET_X);
                SurfaceSystemUse(surface)->catchedScale = offset;
            } else {
                preRc = CachedColumnOffset(fontHandle, font, offset);
            }
        }
        xUsed = x + offset;
        CachedStyleSetDirectionWord(font->cached_style, 2);
    }
    int rc;
    if (code == 0) {
        rc = SCE_FONT_ERROR_NO_SUPPORT_CODE;
    } else if (!surface || !metrics || !result) {
        rc = SCE_FONT_ERROR_INVALID_PARAMETER;
    } else if (preRc != SCE_FONT_OK) {
        rc = preRc;
    } else {
        rc = RenderCharGlyphImageCore(fontHandle, code, surface, xUsed, yUsed, metrics, result);
    }
    ReleaseFontLock(font, fontLock);
    if (rc != SCE_FONT_OK) ClearRenderOutputs(metrics, result);
    return rc;
}

int APS5_VABI sceFontRenderCharGlyphImageHorizontal(FontHandle fontHandle, std::uint32_t code, FontRenderSurface* surface, float x, float y, FontGlyphMetrics* metrics, FontRenderOutput* result) {
    return RenderDirectional(fontHandle, code, surface, x, y, metrics, result, 1);
}

int APS5_VABI sceFontRenderCharGlyphImageVertical(FontHandle fontHandle, std::uint32_t code, FontRenderSurface* surface, float x, float y, FontGlyphMetrics* metrics, FontRenderOutput* result) {
    return RenderDirectional(fontHandle, code, surface, x, y, metrics, result, 2);
}

void APS5_VABI sceFontRenderSurfaceInit(FontRenderSurface* renderSurface, void* buffer, int bufWidthByte, int pixelSizeByte, int widthPixel, int heightPixel) {
    if (!renderSurface) return;
    const auto width = static_cast<std::uint32_t>(std::max(widthPixel, 0));
    const auto height = static_cast<std::uint32_t>(std::max(heightPixel, 0));
    renderSurface->buffer = buffer;
    renderSurface->widthByte = bufWidthByte;
    renderSurface->pixelSizeByte = static_cast<std::int8_t>(pixelSizeByte);
    renderSurface->pad0 = 0;
    renderSurface->styleFlag = 0;
    renderSurface->pad2 = 0;
    renderSurface->width = static_cast<std::int32_t>(width);
    renderSurface->height = static_cast<std::int32_t>(height);
    renderSurface->sc_x0 = 0;
    renderSurface->sc_y0 = 0;
    renderSurface->sc_x1 = width;
    renderSurface->sc_y1 = height;
}

void APS5_VABI sceFontRenderSurfaceSetScissor(FontRenderSurface* renderSurface, int x0, int y0, int w, int h) {
    if (!renderSurface) return;
    const auto surfaceW = static_cast<std::uint32_t>(renderSurface->width);
    if (surfaceW != 0) {
        std::uint32_t x1;
        std::uint32_t left;
        auto width = static_cast<std::uint32_t>(w);
        if (x0 < 0) {
            x1 = width + static_cast<std::uint32_t>(x0);
            if (surfaceW < x1) x1 = surfaceW;
            if (width <= static_cast<std::uint32_t>(-x0)) x1 = 0;
            left = 0;
        } else {
            x1 = surfaceW;
            left = surfaceW;
            if (static_cast<std::uint32_t>(x0) <= surfaceW) {
                if (surfaceW < width) width = surfaceW;
                x1 = width + static_cast<std::uint32_t>(x0);
                left = static_cast<std::uint32_t>(x0);
                if (surfaceW < x1) x1 = surfaceW;
            }
        }
        renderSurface->sc_x0 = left;
        renderSurface->sc_x1 = x1;
    }
    const auto surfaceH = static_cast<std::uint32_t>(renderSurface->height);
    if (surfaceH == 0) return;
    std::uint32_t top;
    std::uint32_t y1 = surfaceH;
    auto height = static_cast<std::uint32_t>(h);
    if (y0 < 0) {
        top = 0;
        if (height <= static_cast<std::uint32_t>(-y0)) {
            renderSurface->sc_y0 = 0;
            renderSurface->sc_y1 = 0;
            return;
        }
    } else {
        if (surfaceH < static_cast<std::uint32_t>(y0)) {
            renderSurface->sc_y0 = surfaceH;
            renderSurface->sc_y1 = y1;
            return;
        }
        top = static_cast<std::uint32_t>(y0);
        if (surfaceH < height) height = surfaceH;
    }
    const std::uint32_t candidate = height + static_cast<std::uint32_t>(y0);
    if (candidate <= surfaceH) y1 = candidate;
    renderSurface->sc_y0 = top;
    renderSurface->sc_y1 = y1;
}

int APS5_VABI sceFontRenderSurfaceSetStyleFrame(FontRenderSurface* renderSurface, FontStyleFrame* styleFrame) {
    if (!renderSurface) return SCE_FONT_ERROR_INVALID_PARAMETER;
    if (!styleFrame) {
        renderSurface->styleFlag &= static_cast<std::uint8_t>(~0x1u);
        renderSurface->reserved_q[0] = 0;
        renderSurface->reserved_q[1] = 0;
        return SCE_FONT_OK;
    }
    if (styleFrame->magic != STYLE_FRAME_MAGIC) return SCE_FONT_ERROR_INVALID_PARAMETER;
    renderSurface->styleFlag |= 0x1;
    renderSurface->reserved_q[0] = reinterpret_cast<std::uint64_t>(styleFrame);
    renderSurface->reserved_q[1] = 0;
    return SCE_FONT_OK;
}

int APS5_VABI sceFontGenerateCharGlyph(FontHandle fontHandle, std::uint32_t code, const FontGenerateGlyphDetail* detail, FontGlyph* pGlyph) {
    if (!pGlyph) return SCE_FONT_ERROR_INVALID_PARAMETER;
    *pGlyph = nullptr;
    if (!fontHandle) return SCE_FONT_ERROR_INVALID_FONT_HANDLE;
    if (code == 0) return SCE_FONT_ERROR_NO_SUPPORT_CODE;
    const FontState* state = TryGetState(fontHandle);
    if (!state) return SCE_FONT_ERROR_INVALID_FONT_HANDLE;
    const std::uint8_t glyphForm = detail ? detail->glyph_form : 0;
    const std::uint8_t metricsForm = detail ? detail->metrics_form : 0;
    const std::uint16_t formOptions = detail ? detail->form_options : 0;
    const FontMemory* glyphMemory = detail ? detail->mem : nullptr;
    if (detail && detail->id != GENERATE_GLYPH_DETAIL_ID) return SCE_FONT_ERROR_INVALID_PARAMETER;
    if ((formOptions & static_cast<std::uint16_t>(~0x11u)) != 0) return SCE_FONT_ERROR_INVALID_PARAMETER;
    if (glyphForm == 0 && metricsForm != 0) return SCE_FONT_ERROR_INVALID_PARAMETER;
    if ((glyphForm != 0 && metricsForm == 0) || glyphForm > 1 || metricsForm > 4) return SCE_FONT_ERROR_INVALID_PARAMETER;
    if (glyphMemory && glyphMemory->mem_kind != MEMORY_MAGIC) return SCE_FONT_ERROR_INVALID_PARAMETER;
    FontGlyphMetrics metrics{};
    const int rc = GetCharGlyphMetrics(fontHandle, code, &metrics, false);
    if (rc != SCE_FONT_OK) return rc;
    auto* generated = new (std::nothrow) GeneratedGlyph();
    if (!generated) return SCE_FONT_ERROR_ALLOCATION_FAILED;
    generated->codepoint = code;
    generated->metrics = metrics;
    generated->glyph.magic = GLYPH_MAGIC;
    generated->glyph.flags = formOptions;
    generated->glyph.glyph_form = glyphForm;
    generated->glyph.metrics_form = metricsForm;
    generated->glyph.em_size = ClampToU16(state->scaleH);
    generated->glyph.baseline = ClampToU16(metrics.Horizontal.bearingY);
    generated->glyph.height_px = ClampToU16(metrics.height);
    generated->glyph.origin_x = 0;
    generated->glyph.origin_y = generated->glyph.baseline;
    generated->glyph.scale_x = state->scaleW;
    generated->glyph.base_scale = state->scaleH;
    generated->glyph.memory = glyphMemory;
    generated->owner = fontHandle;
    generated->outline.outline_flags = generated->glyph.flags;
    TrackGeneratedGlyph(&generated->glyph);
    *pGlyph = &generated->glyph;
    return SCE_FONT_OK;
}

int APS5_VABI sceFontDeleteGlyph(const FontMemory* memory, FontGlyph* pGlyph) {
    (void)memory;
    if (!pGlyph) return SCE_FONT_ERROR_INVALID_PARAMETER;
    const FontGlyph glyph = *pGlyph;
    if (!glyph || glyph->magic != GLYPH_MAGIC || !ForgetGeneratedGlyph(glyph)) return SCE_FONT_ERROR_INVALID_GLYPH;
    delete reinterpret_cast<GeneratedGlyph*>(glyph);
    *pGlyph = nullptr;
    return SCE_FONT_OK;
}

int APS5_VABI sceFontGlyphDefineAttribute(FontGlyph glyph, std::uint32_t attribute, std::uint64_t value) {
    (void)attribute;
    (void)value;
    if (!glyph || glyph->magic != GLYPH_MAGIC) return SCE_FONT_ERROR_INVALID_GLYPH;
    return SCE_FONT_OK;
}

int APS5_VABI sceFontGlyphGetGlyphForm(FontGlyph glyph) {
    if (!glyph || glyph->magic != GLYPH_MAGIC) return SCE_FONT_ERROR_INVALID_GLYPH;
    return glyph->glyph_form;
}

int APS5_VABI sceFontGlyphGetMetricsForm(FontGlyph glyph) {
    if (!glyph || glyph->magic != GLYPH_MAGIC) return SCE_FONT_ERROR_INVALID_GLYPH;
    return glyph->metrics_form;
}

int APS5_VABI sceFontGlyphGetScalePixel(FontGlyph glyph, float* w, float* h) {
    if (!glyph || glyph->magic != GLYPH_MAGIC || (!w && !h)) return SCE_FONT_ERROR_INVALID_PARAMETER;
    if (w) *w = glyph->scale_x;
    if (h) *h = glyph->base_scale;
    return SCE_FONT_OK;
}

const FontGlyphMetrics* APS5_VABI sceFontGlyphRefersMetrics(FontGlyph glyph) {
    auto* generated = TryGetGeneratedGlyph(glyph);
    return generated ? &generated->metrics : nullptr;
}

const FontGlyphMetricsHorizontal* APS5_VABI sceFontGlyphRefersMetricsHorizontal(FontGlyph glyph) {
    auto* generated = TryGetGeneratedGlyph(glyph);
    if (!generated) return nullptr;
    PopulateGlyphMetricVariants(*generated);
    return &generated->metricsHorizontal;
}

const FontGlyphMetricsHorizontalAdvance* APS5_VABI sceFontGlyphRefersMetricsHorizontalAdvance(FontGlyph glyph) {
    auto* generated = TryGetGeneratedGlyph(glyph);
    if (!generated) return nullptr;
    PopulateGlyphMetricVariants(*generated);
    return &generated->metricsHorizontalAdvance;
}

const FontGlyphMetricsHorizontalX* APS5_VABI sceFontGlyphRefersMetricsHorizontalX(FontGlyph glyph) {
    auto* generated = TryGetGeneratedGlyph(glyph);
    if (!generated) return nullptr;
    PopulateGlyphMetricVariants(*generated);
    return &generated->metricsHorizontalX;
}

FontGlyphOutline* APS5_VABI sceFontGlyphRefersOutline(FontGlyph glyph) {
    if (!glyph || glyph->magic != GLYPH_MAGIC || glyph->glyph_form != 1) return nullptr;
    auto* generated = TryGetGeneratedGlyph(glyph);
    if (!generated) return nullptr;
    if (!generated->outlineInitialized && !BuildTrueOutline(*generated)) BuildBoundingOutline(*generated);
    return &generated->outline;
}

}

#pragma GCC visibility pop