_font drawcall opt
This commit is contained in:
@@ -187,126 +187,123 @@ void TextRender::UpdateLayout()
|
||||
Float2 pointer = line.Location;
|
||||
|
||||
// Render all characters from the line
|
||||
for (int32 charIndex = line.FirstCharIndex; charIndex <= line.LastCharIndex; charIndex++)
|
||||
for (int32 charIndex = line.FirstCharIndex; charIndex < line.LastCharIndex; charIndex++)
|
||||
{
|
||||
const Char c = text[charIndex];
|
||||
if (c != '\n')
|
||||
font->GetCharacter(c, entry);
|
||||
|
||||
// Check if need to select/change font atlas (since characters even in the same font may be located in different atlases)
|
||||
if (fontAtlas == nullptr || entry.TextureIndex != drawChunk.FontAtlasIndex)
|
||||
{
|
||||
font->GetCharacter(c, entry);
|
||||
|
||||
// Check if need to select/change font atlas (since characters even in the same font may be located in different atlases)
|
||||
if (fontAtlas == nullptr || entry.TextureIndex != drawChunk.FontAtlasIndex)
|
||||
// Check if need to change atlas (enqueue draw chunk)
|
||||
if (fontAtlas)
|
||||
{
|
||||
// Check if need to change atlas (enqueue draw chunk)
|
||||
if (fontAtlas)
|
||||
drawChunk.IndicesCount = (_ib.Data.Count() / sizeof(uint16)) - drawChunk.StartIndex;
|
||||
if (drawChunk.IndicesCount > 0)
|
||||
{
|
||||
drawChunk.IndicesCount = (_ib.Data.Count() / sizeof(uint16)) - drawChunk.StartIndex;
|
||||
if (drawChunk.IndicesCount > 0)
|
||||
{
|
||||
_drawChunks.Add(drawChunk);
|
||||
}
|
||||
drawChunk.StartIndex = indexCounter;
|
||||
}
|
||||
|
||||
// Get texture atlas that contains current character
|
||||
drawChunk.FontAtlasIndex = entry.TextureIndex;
|
||||
fontAtlas = FontManager::GetAtlas(drawChunk.FontAtlasIndex);
|
||||
if (fontAtlas)
|
||||
{
|
||||
fontAtlas->EnsureTextureCreated();
|
||||
invAtlasSize = 1.0f / fontAtlas->GetSize();
|
||||
}
|
||||
else
|
||||
{
|
||||
invAtlasSize = 1.0f;
|
||||
}
|
||||
|
||||
// Setup material
|
||||
drawChunk.Material = Content::CreateVirtualAsset<MaterialInstance>();
|
||||
drawChunk.Material->SetBaseMaterial(Material.Get());
|
||||
for (auto& param : drawChunk.Material->Params)
|
||||
param.SetIsOverride(false);
|
||||
|
||||
// Set the font parameter
|
||||
static StringView FontParamName = TEXT("Font");
|
||||
const auto param = drawChunk.Material->Params.Get(FontParamName);
|
||||
if (param && param->GetParameterType() == MaterialParameterType::Texture)
|
||||
{
|
||||
param->SetValue(Variant(fontAtlas));
|
||||
param->SetIsOverride(true);
|
||||
_drawChunks.Add(drawChunk);
|
||||
}
|
||||
drawChunk.StartIndex = indexCounter;
|
||||
}
|
||||
|
||||
// Get kerning
|
||||
const bool isWhitespace = StringUtils::IsWhitespace(c);
|
||||
if (!isWhitespace && previous.IsValid)
|
||||
// Get texture atlas that contains current character
|
||||
drawChunk.FontAtlasIndex = entry.TextureIndex;
|
||||
fontAtlas = FontManager::GetAtlas(drawChunk.FontAtlasIndex);
|
||||
if (fontAtlas)
|
||||
{
|
||||
kerning = entry.Font->GetKerning(previous.Character, entry.Character);
|
||||
fontAtlas->EnsureTextureCreated();
|
||||
invAtlasSize = 1.0f / fontAtlas->GetSize();
|
||||
}
|
||||
else
|
||||
{
|
||||
kerning = 0;
|
||||
invAtlasSize = 1.0f;
|
||||
}
|
||||
pointer.X += (float)kerning * scale;
|
||||
previous = entry;
|
||||
|
||||
// Omit whitespace characters
|
||||
if (!isWhitespace)
|
||||
// Setup material
|
||||
drawChunk.Material = Content::CreateVirtualAsset<MaterialInstance>();
|
||||
drawChunk.Material->SetBaseMaterial(Material.Get());
|
||||
for (auto& param : drawChunk.Material->Params)
|
||||
param.SetIsOverride(false);
|
||||
|
||||
// Set the font parameter
|
||||
static StringView FontParamName = TEXT("Font");
|
||||
const auto param = drawChunk.Material->Params.Get(FontParamName);
|
||||
if (param && param->GetParameterType() == MaterialParameterType::Texture)
|
||||
{
|
||||
// Calculate character size and atlas coordinates
|
||||
const float x = pointer.X + (float)entry.OffsetX * scale;
|
||||
const float y = pointer.Y + (float)(font->GetHeight() + font->GetDescender() - entry.OffsetY) * scale;
|
||||
param->SetValue(Variant(fontAtlas));
|
||||
param->SetIsOverride(true);
|
||||
}
|
||||
}
|
||||
|
||||
Rectangle charRect(x, y, entry.UVSize.X * scale, entry.UVSize.Y * scale);
|
||||
charRect.Offset(_layoutOptions.Bounds.Location);
|
||||
// Get kerning
|
||||
const bool isWhitespace = StringUtils::IsWhitespace(c);
|
||||
if (!isWhitespace && previous.IsValid)
|
||||
{
|
||||
kerning = font->GetKerning(previous.Character, entry.Character);
|
||||
}
|
||||
else
|
||||
{
|
||||
kerning = 0;
|
||||
}
|
||||
pointer.X += (float)kerning * scale;
|
||||
previous = entry;
|
||||
|
||||
Float2 upperLeftUV = entry.UV * invAtlasSize;
|
||||
Float2 rightBottomUV = (entry.UV + entry.UVSize) * invAtlasSize;
|
||||
// Omit whitespace characters
|
||||
if (!isWhitespace)
|
||||
{
|
||||
// Calculate character size and atlas coordinates
|
||||
const float x = pointer.X + (float)entry.OffsetX * scale;
|
||||
const float y = pointer.Y + (float)(font->GetHeight() + font->GetDescender() - entry.OffsetY) * scale;
|
||||
|
||||
// Calculate bitangent sign
|
||||
Float3 normal = Float3::UnitZ;
|
||||
Float3 tangent = Float3::UnitX;
|
||||
byte sign = 0;
|
||||
Rectangle charRect(x, y, entry.UVSize.X * scale, entry.UVSize.Y * scale);
|
||||
charRect.Offset(_layoutOptions.Bounds.Location);
|
||||
|
||||
// Write vertices
|
||||
VB0ElementType vb0;
|
||||
VB1ElementType vb1;
|
||||
VB2ElementType vb2;
|
||||
Float2 upperLeftUV = entry.UV * invAtlasSize;
|
||||
Float2 rightBottomUV = (entry.UV + entry.UVSize) * invAtlasSize;
|
||||
|
||||
// Calculate bitangent sign
|
||||
Float3 normal = Float3::UnitZ;
|
||||
Float3 tangent = Float3::UnitX;
|
||||
byte sign = 0;
|
||||
|
||||
// Write vertices
|
||||
VB0ElementType vb0;
|
||||
VB1ElementType vb1;
|
||||
VB2ElementType vb2;
|
||||
#define WRITE_VB(pos, uv) \
|
||||
vb0.Position = Float3(-pos, 0.0f); \
|
||||
box.Merge(vb0.Position); \
|
||||
_vb0.Write(vb0); \
|
||||
vb1.TexCoord = Half2(uv); \
|
||||
vb1.Normal = Float1010102(normal * 0.5f + 0.5f, 0); \
|
||||
vb1.Tangent = Float1010102(tangent * 0.5f + 0.5f, sign); \
|
||||
vb1.LightmapUVs = Half2::Zero; \
|
||||
_vb1.Write(vb1); \
|
||||
vb2.Color = color; \
|
||||
_vb2.Write(vb2)
|
||||
//
|
||||
WRITE_VB(charRect.GetBottomRight(), rightBottomUV);
|
||||
WRITE_VB(charRect.GetBottomLeft(), Float2(upperLeftUV.X, rightBottomUV.Y));
|
||||
WRITE_VB(charRect.GetUpperLeft(), upperLeftUV);
|
||||
WRITE_VB(charRect.GetUpperRight(), Float2(rightBottomUV.X, upperLeftUV.Y));
|
||||
//
|
||||
vb0.Position = Float3(-pos, 0.0f); \
|
||||
box.Merge(vb0.Position); \
|
||||
_vb0.Write(vb0); \
|
||||
vb1.TexCoord = Half2(uv); \
|
||||
vb1.Normal = Float1010102(normal * 0.5f + 0.5f, 0); \
|
||||
vb1.Tangent = Float1010102(tangent * 0.5f + 0.5f, sign); \
|
||||
vb1.LightmapUVs = Half2::Zero; \
|
||||
_vb1.Write(vb1); \
|
||||
vb2.Color = color; \
|
||||
_vb2.Write(vb2)
|
||||
//
|
||||
WRITE_VB(charRect.GetBottomRight(), rightBottomUV);
|
||||
WRITE_VB(charRect.GetBottomLeft(), Float2(upperLeftUV.X, rightBottomUV.Y));
|
||||
WRITE_VB(charRect.GetUpperLeft(), upperLeftUV);
|
||||
WRITE_VB(charRect.GetUpperRight(), Float2(rightBottomUV.X, upperLeftUV.Y));
|
||||
//
|
||||
#undef WRITE_VB
|
||||
|
||||
const uint16 startVertex = vertexCounter;
|
||||
vertexCounter += 4;
|
||||
indexCounter += 6;
|
||||
const uint16 startVertex = vertexCounter;
|
||||
vertexCounter += 4;
|
||||
indexCounter += 6;
|
||||
|
||||
// Write indices
|
||||
_ib.Write((uint16)(startVertex + (uint16)0));
|
||||
_ib.Write((uint16)(startVertex + (uint16)1));
|
||||
_ib.Write((uint16)(startVertex + (uint16)2));
|
||||
_ib.Write((uint16)(startVertex + (uint16)2));
|
||||
_ib.Write((uint16)(startVertex + (uint16)3));
|
||||
_ib.Write((uint16)(startVertex + (uint16)0));
|
||||
}
|
||||
|
||||
// Move
|
||||
pointer.X += (float)entry.AdvanceX * scale;
|
||||
// Write indices
|
||||
_ib.Write((uint16)(startVertex + (uint16)0));
|
||||
_ib.Write((uint16)(startVertex + (uint16)1));
|
||||
_ib.Write((uint16)(startVertex + (uint16)2));
|
||||
_ib.Write((uint16)(startVertex + (uint16)2));
|
||||
_ib.Write((uint16)(startVertex + (uint16)3));
|
||||
_ib.Write((uint16)(startVertex + (uint16)0));
|
||||
}
|
||||
|
||||
// Move
|
||||
pointer.X += (float)entry.AdvanceX * scale;
|
||||
}
|
||||
}
|
||||
drawChunk.IndicesCount = (_ib.Data.Count() / sizeof(uint16)) - drawChunk.StartIndex;
|
||||
|
||||
Reference in New Issue
Block a user