* TextGenerator -> Font

1 files changed, 0 insertions, 214 deletions

diff --git a/Runtime/GUI/TextGenerator.cpp b/Runtime/GUI/TextGenerator.cpp
deleted file mode 100644
index d2cd20c..0000000
--- a/Runtime/GUI/TextGenerator.cpp
+++ /dev/null
@@ -1,214 +0,0 @@
-#include "freetype.h"
-#include "TextGenerator.h"
-#include "../Math/Math.h"
-#include "Runtime/Debug/Log.h"
-#include "Runtime/Utilities/Assert.h"
-#include "Runtime/Graphics/ImageData.h"
-
-using namespace character;
-
-//https://unicode-table.com/en/#cjk-unified-ideographs-extension-a
-//https://learnopengl.com/In-Practice/Text-Rendering
-//https://www.zhihu.com/question/294660079
-//https://baike.baidu.com/item/%E5%9F%BA%E6%9C%AC%E5%A4%9A%E6%96%87%E7%A7%8D%E5%B9%B3%E9%9D%A2/10788078
-//https://stackoverflow.com/questions/27331819/whats-the-difference-between-a-character-a-code-point-a-glyph-and-a-grapheme
-
-void TextGenerator::Setup(TextGeneratingSettings settings)
-{
-	m_AtlasMargin = settings.margin;
-	m_GlyphPadding = settings.padding;
-	m_AtlasSize = settings.atlasSize;
-
-	if (FT_Init_FreeType(&m_FTLibrary))
-	{
-		return;
-	}
-
-	if (FT_New_Face(m_FTLibrary, "Resources/Font/Deng.ttf", 0, &m_FTFace))
-	{
-		return;
-	}
-}
-
-character::Hash TextGenerator::GetHash(Codepoint codepoint, int pixelSize)
-{
-	character::Hash hash;
-	hash.codepoint = codepoint;
-	hash.size = pixelSize;
-	return hash;
-}
-
-const Character* TextGenerator::GetCharacter(character::Codepoint codepoint, int pixelSize)
-{
-	character::Hash hash = GetHash(codepoint, pixelSize);
-	auto iter = m_Characters.find(hash);
-	if (iter == m_Characters.end())
-	{
-		RenderCharacter(codepoint, pixelSize);
-		iter = m_Characters.find(hash);
-	}
-	Assert(iter != m_Characters.end());
-	return &iter->second;
-}
-
-void TextGenerator::RenderCharacters(character::Codepoint* codepoint, int n, int pixelSize)
-{
-	for (int i = 0; i < n; ++i)
-	{
-		RenderCharacter(codepoint[i], pixelSize);
-	}
-}
-
-void TextGenerator::RenderCharacter(character::Codepoint codepoint, int pixelSize)
-{
-	character::Hash hash = GetHash(codepoint, pixelSize);
-	if (m_Characters.count(hash) != 0)
-		return; 
-	FT_Set_Pixel_Sizes(m_FTFace, 0, pixelSize);
-	if (FT_Load_Char(m_FTFace, codepoint, FT_LOAD_RENDER))
-	{
-		return;
-	}
-
-	int w = m_FTFace->glyph->bitmap.width;
-	int h = m_FTFace->glyph->bitmap.rows;
-
-	//TextHelper::print_glyph(m_FTFace->glyph->bitmap.buffer, w, h);
-
-	GlyphAtals* atlas = RequestAtlas(pixelSize, Internal::Vector2(w, h));
-	Assert(atlas);
-
-	Internal::Rect rect = GetRenderChartAndMove(atlas, Internal::Vector2(w, h));
-
-	try
-	{
-		atlas->altas->UpdateSubImage(rect, EPixelFormat::PixelFormat_R, EPixelElementType::PixelType_UNSIGNED_BYTE, m_FTFace->glyph->bitmap.buffer);
-	}
-	catch (TextureException& e)
-	{
-		std::string error = e.what();
-		error = "Render Character Error: " + error;
-		log_error(e.what());
-		return;
-	}
-
-	Character character;
-	character.atlas = atlas->index;
-	character.position = rect;
-	character.bearing = Internal::Vector2(m_FTFace->glyph->bitmap_left, m_FTFace->glyph->bitmap_top);
-	character.advance = m_FTFace->glyph->advance.x * 1/64.f;
-
-	m_Characters.insert(std::pair<character::Hash, Character>(hash, character));
-}
-
-const GlyphAtals* TextGenerator::GetGlyphAtlas(int index)
-{
-	if (index >= m_Atlases.size())
-		return NULL;
-	return &m_Atlases[index];
-}
-
-Internal::Rect TextGenerator::GetRenderChartAndMove(GlyphAtals* atlas, Internal::Vector2 preferSize)
-{
-	Internal::Rect rect;
-	Internal::Vector2 space;
-	space.x = atlas->width - atlas->cursor.x - m_AtlasMargin;
-	space.y = atlas->height - atlas->cursor.y - m_AtlasMargin;
-	if (space.x > preferSize.x && space.y > preferSize.y)
-	{
-		rect.x = atlas->cursor.x;
-		rect.y = atlas->cursor.y;
-		rect.width = preferSize.x;
-		rect.height = preferSize.y;
-		atlas->cursor.x += rect.width + m_GlyphPadding;
-		atlas->rowHeight = max(atlas->rowHeight, preferSize.y);
-	}
-	else if (space.y - atlas->rowHeight - m_GlyphPadding - m_AtlasMargin > preferSize.y)
-	{
-		rect.x = m_AtlasMargin;
-		rect.y = atlas->cursor.y + m_GlyphPadding + atlas->rowHeight;
-		rect.width = preferSize.x;
-		rect.height = preferSize.y;
-		atlas->cursor.x = m_AtlasMargin;
-		atlas->cursor.y += atlas->rowHeight + m_GlyphPadding;
-		atlas->rowHeight = rect.height;
-	}
-	else
-	{
-		Assert(false);
-	}
-	return rect;
-}
-
-GlyphAtals* TextGenerator::RequestAtlas(int pixelSize, Internal::Vector2 preferSize)
-{
-	GlyphAtals* atlas = NULL;
-	auto iter = m_AtlasCache.find(pixelSize);
-	if (iter == m_AtlasCache.end() || !HasEnoughSpace(iter->second, preferSize))
-	{
-		Texture* tex = CreateAtlas();
-		GlyphAtals newAtlas = GlyphAtals();
-		newAtlas.altas = tex;
-		newAtlas.width = m_AtlasSize.x;
-		newAtlas.height = m_AtlasSize.y;
-		newAtlas.index = m_Atlases.size();
-		newAtlas.cursor = Internal::Vector2(m_AtlasMargin, m_AtlasMargin);
-
-		m_Atlases.push_back(newAtlas);
-		atlas = &m_Atlases[m_Atlases.size() - 1];
-
-		if (iter != m_AtlasCache.end())
-			m_AtlasCache.erase(pixelSize);
-		m_AtlasCache.insert(std::pair<int, GlyphAtals*>(pixelSize, atlas));
-	}
-	else 
-	{
-		atlas = iter->second;
-	}
-	Assert(atlas);
-	return atlas;
-}
-
-Texture* TextGenerator::CreateAtlas()
-{
-	TextureSetting setting; 
-	setting.filterMode = ETextureFilterMode::Linear;
-	setting.wrapMode = ETextureWrapMode::Clamp;
-	setting.format = ETextureFormat::R8;
-	setting.type = ETextureType::TEX_2D;
-	setting.keepImageData = false;
-	Texture* tex = new Texture(setting, m_AtlasSize.x, m_AtlasSize.y);
-	return tex;
-}
-
-bool TextGenerator::HasEnoughSpace(GlyphAtals* atlas, Internal::Vector2 preferSize)
-{
-	if (atlas == NULL)
-		return false;
-	Internal::Vector2 space;
-	space.x = atlas->width - atlas->cursor.x - m_AtlasMargin;
-	space.y = atlas->height - atlas->cursor.y - m_AtlasMargin;
-	if (space.x > preferSize.x && space.y > preferSize.y)
-		return true;
-	if (space.y - atlas->rowHeight - m_GlyphPadding - m_AtlasMargin > preferSize.y)
-		return true;
-	return false;
-}
-
-Character GetCharacter(character::Codepoint Codepoint, int pixelSize)
-{
-	return Character();
-}
-
-void TextHelper::print_glyph(unsigned char* glyph, int width, int height)
-{
-	for (int r = 0; r < height; ++r)
-	{
-		for (int c = 0; c < width; ++c)
-		{
-			unsigned char ch = glyph[c + r * width];
-			printf("%c", ch == 0 ? ' ' : '+');
-		}
-		printf("\n");
-	}
-}