/// <summary>
/// Try to pack the given glyph into the given texture width and height.
/// </summary>
/// <param name="glyph">The glyph to try to pack.</param>
/// <param name="padding">The padding between this glyph and other glyphs.</param>
/// <param name="packingMode">The packing algorithm used to pack the glyphs.</param>
/// <param name="renderMode">The glyph rendering mode.</param>
/// <param name="width">The width of the target atlas texture.</param>
/// <param name="height">The height of the target atlas texture.</param>
/// <param name="freeGlyphRects">List of GlyphRects representing the available space in the atlas.</param>
/// <param name="usedGlyphRects">List of GlyphRects representing the occupied space in the atlas.</param>
/// <returns></returns>
internal static bool TryPackGlyphInAtlas(Glyph glyph, int padding, GlyphPackingMode packingMode, GlyphRenderMode renderMode, int width, int height, List <GlyphRect> freeGlyphRects, List <GlyphRect> usedGlyphRects)
{
GlyphMarshallingStruct glyphStruct = new GlyphMarshallingStruct(glyph);
int freeGlyphRectCount = freeGlyphRects.Count;
int usedGlyphRectCount = usedGlyphRects.Count;
int totalGlyphRects = freeGlyphRectCount + usedGlyphRectCount;
// Make sure marshalling arrays allocations are appropriate.
if (s_FreeGlyphRects.Length < totalGlyphRects || s_UsedGlyphRects.Length < totalGlyphRects)
{
int newSize = Mathf.NextPowerOfTwo(totalGlyphRects + 1);
s_FreeGlyphRects = new GlyphRect[newSize];
s_UsedGlyphRects = new GlyphRect[newSize];
}
// Copy glyph rect data to marshalling arrays.
int glyphRectCount = Mathf.Max(freeGlyphRectCount, usedGlyphRectCount);
for (int i = 0; i < glyphRectCount; i++)
{
if (i < freeGlyphRectCount)
{
s_FreeGlyphRects[i] = freeGlyphRects[i];
}
if (i < usedGlyphRectCount)
{
s_UsedGlyphRects[i] = usedGlyphRects[i];
}
}
if (TryPackGlyphInAtlas_Internal(ref glyphStruct, padding, packingMode, renderMode, width, height, s_FreeGlyphRects, ref freeGlyphRectCount, s_UsedGlyphRects, ref usedGlyphRectCount))
{
// Copy new glyph position to source glyph.
glyph.glyphRect = glyphStruct.glyphRect;
freeGlyphRects.Clear();
usedGlyphRects.Clear();
// Copy marshalled glyph rect data
glyphRectCount = Mathf.Max(freeGlyphRectCount, usedGlyphRectCount);
for (int i = 0; i < glyphRectCount; i++)
{
if (i < freeGlyphRectCount)
{
freeGlyphRects.Add(s_FreeGlyphRects[i]);
}
if (i < usedGlyphRectCount)
{
usedGlyphRects.Add(s_UsedGlyphRects[i]);
}
}
return(true);
}
return(false);
}
internal static bool TryPackGlyphInAtlas(Glyph glyph, int padding, GlyphPackingMode packingMode, GlyphRenderMode renderMode, int width, int height, List <GlyphRect> freeGlyphRects, List <GlyphRect> usedGlyphRects)
{
GlyphMarshallingStruct glyphMarshallingStruct = new GlyphMarshallingStruct(glyph);
int count = freeGlyphRects.Count;
int count2 = usedGlyphRects.Count;
int num = count + count2;
bool flag = FontEngine.s_FreeGlyphRects.Length < num || FontEngine.s_UsedGlyphRects.Length < num;
if (flag)
{
int num2 = Mathf.NextPowerOfTwo(num + 1);
FontEngine.s_FreeGlyphRects = new GlyphRect[num2];
FontEngine.s_UsedGlyphRects = new GlyphRect[num2];
}
int num3 = Mathf.Max(count, count2);
for (int i = 0; i < num3; i++)
{
bool flag2 = i < count;
if (flag2)
{
FontEngine.s_FreeGlyphRects[i] = freeGlyphRects[i];
}
bool flag3 = i < count2;
if (flag3)
{
FontEngine.s_UsedGlyphRects[i] = usedGlyphRects[i];
}
}
bool flag4 = FontEngine.TryPackGlyphInAtlas_Internal(ref glyphMarshallingStruct, padding, packingMode, renderMode, width, height, FontEngine.s_FreeGlyphRects, ref count, FontEngine.s_UsedGlyphRects, ref count2);
bool result;
if (flag4)
{
glyph.glyphRect = glyphMarshallingStruct.glyphRect;
freeGlyphRects.Clear();
usedGlyphRects.Clear();
num3 = Mathf.Max(count, count2);
for (int j = 0; j < num3; j++)
{
bool flag5 = j < count;
if (flag5)
{
freeGlyphRects.Add(FontEngine.s_FreeGlyphRects[j]);
}
bool flag6 = j < count2;
if (flag6)
{
usedGlyphRects.Add(FontEngine.s_UsedGlyphRects[j]);
}
}
result = true;
}
else
{
result = false;
}
return(result);
}
/// <summary>
/// Try loading the glyph for the given index value and if available populate the glyph.
/// </summary>
/// <param name="glyphIndex">The index of the glyph that should be loaded.</param>
/// <param name="flags">The Load Flags.</param>
/// <param name="glyph">The glyph using the provided index or the .notdef glyph (index 0) if no glyph was found at that index.</param>
/// <returns>Returns true if a glyph exists at the given index. Otherwise returns false.</returns>
public static bool TryGetGlyphWithIndexValue(uint glyphIndex, GlyphLoadFlags flags, out Glyph glyph)
{
GlyphMarshallingStruct glyphStruct = new GlyphMarshallingStruct();
if (TryGetGlyphWithIndexValue_Internal(glyphIndex, flags, ref glyphStruct))
{
glyph = new Glyph(glyphStruct);
return(true);
}
// Set glyph to null if no glyph exists for the given unicode value.
glyph = null;
return(false);
}
public static bool TryGetGlyphWithIndexValue(uint glyphIndex, GlyphLoadFlags flags, out Glyph glyph)
{
GlyphMarshallingStruct glyphStruct = default(GlyphMarshallingStruct);
bool flag = FontEngine.TryGetGlyphWithIndexValue_Internal(glyphIndex, flags, ref glyphStruct);
bool result;
if (flag)
{
glyph = new Glyph(glyphStruct);
result = true;
}
else
{
glyph = null;
result = false;
}
return(result);
}
/// <summary>
/// Internal function used to render and add glyphs to the cached shared texture data from outside the main thread.
/// It is necessary to use SetSharedTextureData(texture) prior to calling this function.
/// </summary>
/// <param name="glyphs">The list of glyphs to be added into the provided texture.</param>
/// <param name="padding">The padding value around the glyphs.</param>
/// <param name="renderMode">The rendering mode used to rasterize the glyphs.</param>
/// <returns></returns>
internal static FontEngineError RenderGlyphsToSharedTexture(List <Glyph> glyphs, int padding, GlyphRenderMode renderMode)
{
int glyphCount = glyphs.Count;
// Make sure marshaling arrays allocations are appropriate.
if (s_GlyphMarshallingStruct_IN.Length < glyphCount)
{
int newSize = Mathf.NextPowerOfTwo(glyphCount + 1);
s_GlyphMarshallingStruct_IN = new GlyphMarshallingStruct[newSize];
}
// Copy data to marshalling buffers
for (int i = 0; i < glyphCount; i++)
{
s_GlyphMarshallingStruct_IN[i] = new GlyphMarshallingStruct(glyphs[i]);
}
int error = RenderGlyphsToSharedTexture_Internal(s_GlyphMarshallingStruct_IN, glyphCount, padding, renderMode);
return((FontEngineError)error);
}
extern static bool TryAddGlyphToTexture_Internal(uint glyphIndex, int padding,
GlyphPackingMode packingMode, [Out] GlyphRect[] freeGlyphRects, ref int freeGlyphRectCount, [Out] GlyphRect[] usedGlyphRects, ref int usedGlyphRectCount,
GlyphRenderMode renderMode, Texture2D texture, out GlyphMarshallingStruct glyph);
extern static int RenderGlyphToTexture_Internal(GlyphMarshallingStruct glyphStruct, int padding, GlyphRenderMode renderMode, Texture2D texture);
/// <summary>
/// Render and add glyph to the provided texture.
/// </summary>
/// <param name="glyph">The Glyph that should be added into the provided texture.</param>
/// <param name="padding">The padding value around the glyph.</param>
/// <param name="renderMode">The Rendering Mode for the Glyph.</param>
/// <param name="texture">The Texture to which the glyph should be added.</param>
/// <returns>Returns a value of zero if the glyph was successfully added to the texture.</returns>
internal static FontEngineError RenderGlyphToTexture(Glyph glyph, int padding, GlyphRenderMode renderMode, Texture2D texture)
{
GlyphMarshallingStruct glyphStruct = new GlyphMarshallingStruct(glyph);
return((FontEngineError)RenderGlyphToTexture_Internal(glyphStruct, padding, renderMode, texture));
}
/// <summary>
/// Pack glyphs in the given atlas size.
/// </summary>
/// <param name="glyphsToAdd">Glyphs to pack in atlas.</param>
/// <param name="glyphsAdded">Glyphs packed in atlas.</param>
/// <param name="padding">The padding between glyphs.</param>
/// <param name="packingMode">The packing algorithm used to pack the glyphs.</param>
/// <param name="renderMode">The glyph rendering mode.</param>
/// <param name="width">The width of the target atlas texture.</param>
/// <param name="height">The height of the target atlas texture.</param>
/// <param name="freeGlyphRects">List of GlyphRects representing the available space in the atlas.</param>
/// <param name="usedGlyphRects">List of GlyphRects representing the occupied space in the atlas.</param>
/// <returns></returns>
internal static bool TryPackGlyphsInAtlas(List <Glyph> glyphsToAdd, List <Glyph> glyphsAdded, int padding, GlyphPackingMode packingMode, GlyphRenderMode renderMode, int width, int height, List <GlyphRect> freeGlyphRects, List <GlyphRect> usedGlyphRects)
{
// Determine potential total allocations required for glyphs and glyph rectangles.
int glyphsToAddCount = glyphsToAdd.Count;
int glyphsAddedCount = glyphsAdded.Count;
int freeGlyphRectCount = freeGlyphRects.Count;
int usedGlyphRectCount = usedGlyphRects.Count;
int totalCount = glyphsToAddCount + glyphsAddedCount + freeGlyphRectCount + usedGlyphRectCount;
// Make sure marshaling arrays allocations are appropriate.
if (s_GlyphMarshallingStruct_IN.Length < totalCount || s_GlyphMarshallingStruct_OUT.Length < totalCount || s_FreeGlyphRects.Length < totalCount || s_UsedGlyphRects.Length < totalCount)
{
int newSize = Mathf.NextPowerOfTwo(totalCount + 1);
s_GlyphMarshallingStruct_IN = new GlyphMarshallingStruct[newSize];
s_GlyphMarshallingStruct_OUT = new GlyphMarshallingStruct[newSize];
s_FreeGlyphRects = new GlyphRect[newSize];
s_UsedGlyphRects = new GlyphRect[newSize];
}
s_GlyphLookupDictionary.Clear();
// Copy glyph data into appropriate marshaling array.
for (int i = 0; i < totalCount; i++)
{
if (i < glyphsToAddCount)
{
GlyphMarshallingStruct glyphStruct = new GlyphMarshallingStruct(glyphsToAdd[i]);
s_GlyphMarshallingStruct_IN[i] = glyphStruct;
// Add reference to glyph in lookup dictionary
if (s_GlyphLookupDictionary.ContainsKey(glyphStruct.index) == false)
{
s_GlyphLookupDictionary.Add(glyphStruct.index, glyphsToAdd[i]);
}
}
if (i < glyphsAddedCount)
{
GlyphMarshallingStruct glyphStruct = new GlyphMarshallingStruct(glyphsAdded[i]);
s_GlyphMarshallingStruct_OUT[i] = glyphStruct;
// Add reference to glyph in lookup dictionary
if (s_GlyphLookupDictionary.ContainsKey(glyphStruct.index) == false)
{
s_GlyphLookupDictionary.Add(glyphStruct.index, glyphsAdded[i]);
}
}
if (i < freeGlyphRectCount)
{
s_FreeGlyphRects[i] = freeGlyphRects[i];
}
if (i < usedGlyphRectCount)
{
s_UsedGlyphRects[i] = usedGlyphRects[i];
}
}
bool allGlyphsIncluded = TryPackGlyphsInAtlas_Internal(s_GlyphMarshallingStruct_IN, ref glyphsToAddCount, s_GlyphMarshallingStruct_OUT, ref glyphsAddedCount,
padding, packingMode, renderMode, width, height,
s_FreeGlyphRects, ref freeGlyphRectCount, s_UsedGlyphRects, ref usedGlyphRectCount);
// Clear lists and / or re-allocate arrays.
glyphsToAdd.Clear();
glyphsAdded.Clear();
freeGlyphRects.Clear();
usedGlyphRects.Clear();
// Copy marshaled glyph data back into the appropriate lists.
for (int i = 0; i < totalCount; i++)
{
if (i < glyphsToAddCount)
{
GlyphMarshallingStruct glyphStruct = s_GlyphMarshallingStruct_IN[i];
Glyph glyph = s_GlyphLookupDictionary[glyphStruct.index];
// Note: In theory, only new glyphRect x and y need to be copied.
glyph.metrics = glyphStruct.metrics;
glyph.glyphRect = glyphStruct.glyphRect;
glyph.scale = glyphStruct.scale;
glyph.atlasIndex = glyphStruct.atlasIndex;
glyphsToAdd.Add(glyph);
}
if (i < glyphsAddedCount)
{
GlyphMarshallingStruct glyphStruct = s_GlyphMarshallingStruct_OUT[i];
Glyph glyph = s_GlyphLookupDictionary[glyphStruct.index];
glyph.metrics = glyphStruct.metrics;
glyph.glyphRect = glyphStruct.glyphRect;
glyph.scale = glyphStruct.scale;
glyph.atlasIndex = glyphStruct.atlasIndex;
glyphsAdded.Add(glyph);
}
if (i < freeGlyphRectCount)
{
freeGlyphRects.Add(s_FreeGlyphRects[i]);
}
if (i < usedGlyphRectCount)
{
usedGlyphRects.Add(s_UsedGlyphRects[i]);
}
}
return(allGlyphsIncluded);
}
extern static bool TryPackGlyphInAtlas_Internal(ref GlyphMarshallingStruct glyph, int padding, GlyphPackingMode packingMode, GlyphRenderMode renderMode, int width, int height,
[Out] GlyphRect[] freeGlyphRects, ref int freeGlyphRectCount, [Out] GlyphRect[] usedGlyphRects, ref int usedGlyphRectCount);
static extern bool TryGetGlyphWithIndexValue_Internal(uint glyphIndex, GlyphLoadFlags loadFlags, ref GlyphMarshallingStruct glyphStruct);
static extern bool TryGetGlyphWithUnicodeValue_Internal(uint unicode, GlyphLoadFlags loadFlags, ref GlyphMarshallingStruct glyphStruct);
private static extern int RenderGlyphToTexture_Internal_Injected(ref GlyphMarshallingStruct glyphStruct, int padding, GlyphRenderMode renderMode, Texture2D texture);
private static int RenderGlyphToTexture_Internal(GlyphMarshallingStruct glyphStruct, int padding, GlyphRenderMode renderMode, Texture2D texture)
{
return(FontEngine.RenderGlyphToTexture_Internal_Injected(ref glyphStruct, padding, renderMode, texture));
}
internal static bool TryPackGlyphsInAtlas(List <Glyph> glyphsToAdd, List <Glyph> glyphsAdded, int padding, GlyphPackingMode packingMode, GlyphRenderMode renderMode, int width, int height, List <GlyphRect> freeGlyphRects, List <GlyphRect> usedGlyphRects)
{
int count = glyphsToAdd.Count;
int count2 = glyphsAdded.Count;
int count3 = freeGlyphRects.Count;
int count4 = usedGlyphRects.Count;
int num = count + count2 + count3 + count4;
bool flag = FontEngine.s_GlyphMarshallingStruct_IN.Length < num || FontEngine.s_GlyphMarshallingStruct_OUT.Length < num || FontEngine.s_FreeGlyphRects.Length < num || FontEngine.s_UsedGlyphRects.Length < num;
if (flag)
{
int num2 = Mathf.NextPowerOfTwo(num + 1);
FontEngine.s_GlyphMarshallingStruct_IN = new GlyphMarshallingStruct[num2];
FontEngine.s_GlyphMarshallingStruct_OUT = new GlyphMarshallingStruct[num2];
FontEngine.s_FreeGlyphRects = new GlyphRect[num2];
FontEngine.s_UsedGlyphRects = new GlyphRect[num2];
}
FontEngine.s_GlyphLookupDictionary.Clear();
for (int i = 0; i < num; i++)
{
bool flag2 = i < count;
if (flag2)
{
GlyphMarshallingStruct glyphMarshallingStruct = new GlyphMarshallingStruct(glyphsToAdd[i]);
FontEngine.s_GlyphMarshallingStruct_IN[i] = glyphMarshallingStruct;
bool flag3 = !FontEngine.s_GlyphLookupDictionary.ContainsKey(glyphMarshallingStruct.index);
if (flag3)
{
FontEngine.s_GlyphLookupDictionary.Add(glyphMarshallingStruct.index, glyphsToAdd[i]);
}
}
bool flag4 = i < count2;
if (flag4)
{
GlyphMarshallingStruct glyphMarshallingStruct2 = new GlyphMarshallingStruct(glyphsAdded[i]);
FontEngine.s_GlyphMarshallingStruct_OUT[i] = glyphMarshallingStruct2;
bool flag5 = !FontEngine.s_GlyphLookupDictionary.ContainsKey(glyphMarshallingStruct2.index);
if (flag5)
{
FontEngine.s_GlyphLookupDictionary.Add(glyphMarshallingStruct2.index, glyphsAdded[i]);
}
}
bool flag6 = i < count3;
if (flag6)
{
FontEngine.s_FreeGlyphRects[i] = freeGlyphRects[i];
}
bool flag7 = i < count4;
if (flag7)
{
FontEngine.s_UsedGlyphRects[i] = usedGlyphRects[i];
}
}
bool result = FontEngine.TryPackGlyphsInAtlas_Internal(FontEngine.s_GlyphMarshallingStruct_IN, ref count, FontEngine.s_GlyphMarshallingStruct_OUT, ref count2, padding, packingMode, renderMode, width, height, FontEngine.s_FreeGlyphRects, ref count3, FontEngine.s_UsedGlyphRects, ref count4);
glyphsToAdd.Clear();
glyphsAdded.Clear();
freeGlyphRects.Clear();
usedGlyphRects.Clear();
for (int j = 0; j < num; j++)
{
bool flag8 = j < count;
if (flag8)
{
GlyphMarshallingStruct glyphMarshallingStruct3 = FontEngine.s_GlyphMarshallingStruct_IN[j];
Glyph glyph = FontEngine.s_GlyphLookupDictionary[glyphMarshallingStruct3.index];
glyph.metrics = glyphMarshallingStruct3.metrics;
glyph.glyphRect = glyphMarshallingStruct3.glyphRect;
glyph.scale = glyphMarshallingStruct3.scale;
glyph.atlasIndex = glyphMarshallingStruct3.atlasIndex;
glyphsToAdd.Add(glyph);
}
bool flag9 = j < count2;
if (flag9)
{
GlyphMarshallingStruct glyphMarshallingStruct4 = FontEngine.s_GlyphMarshallingStruct_OUT[j];
Glyph glyph2 = FontEngine.s_GlyphLookupDictionary[glyphMarshallingStruct4.index];
glyph2.metrics = glyphMarshallingStruct4.metrics;
glyph2.glyphRect = glyphMarshallingStruct4.glyphRect;
glyph2.scale = glyphMarshallingStruct4.scale;
glyph2.atlasIndex = glyphMarshallingStruct4.atlasIndex;
glyphsAdded.Add(glyph2);
}
bool flag10 = j < count3;
if (flag10)
{
freeGlyphRects.Add(FontEngine.s_FreeGlyphRects[j]);
}
bool flag11 = j < count4;
if (flag11)
{
usedGlyphRects.Add(FontEngine.s_UsedGlyphRects[j]);
}
}
return(result);
}