/* Copyright 2013 Jeremie Roy. All rights reserved. * License: http://www.opensource.org/licenses/BSD-2-Clause */ #include "text_buffer_manager.h" #include "../cube_atlas.h" #include #include #include #include #include /* offsetof */ #define MAX_TEXT_BUFFER_COUNT 64 #define MAX_BUFFERED_CHARACTERS 8192 // Table from Flexible and Economical UTF-8 Decoder // Copyright (c) 2008-2009 Bjoern Hoehrmann // See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details. static const uint8_t utf8d[] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 00..1f 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 20..3f 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 40..5f 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 60..7f 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, // 80..9f 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, // a0..bf 8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, // c0..df 0xa,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x4,0x3,0x3, // e0..ef 0xb,0x6,0x6,0x6,0x5,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8, // f0..ff 0x0,0x1,0x2,0x3,0x5,0x8,0x7,0x1,0x1,0x1,0x4,0x6,0x1,0x1,0x1,0x1, // s0..s0 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,0,1,0,1,1,1,1,1,1, // s1..s2 1,2,1,1,1,1,1,2,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1, // s3..s4 1,2,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,3,1,3,1,1,1,1,1,1, // s5..s6 1,3,1,1,1,1,1,3,1,3,1,1,1,1,1,1,1,3,1,1,1,1,1,1,1,1,1,1,1,1,1,1, // s7..s8 }; #define UTF8_ACCEPT 0 #define UTF8_REJECT 1 inline uint32_t utf8_decode(uint32_t* state, uint32_t* codep, uint32_t byte) { uint32_t type = utf8d[byte]; *codep = (*state != UTF8_ACCEPT) ? (byte & 0x3fu) | (*codep << 6) : (0xff >> type) & (byte); *state = utf8d[256 + *state*16 + type]; return *state; } inline int utf8_strlen(uint8_t* s, size_t* count) { uint32_t codepoint; uint32_t state = 0; for (*count = 0; *s; ++s) if (!utf8_decode(&state, &codepoint, *s)) *count += 1; return state != UTF8_ACCEPT; } class TextBuffer { public: /// TextBuffer is bound to a fontManager for glyph retrieval /// @remark the ownership of the manager is not taken TextBuffer(FontManager* _fontManager); ~TextBuffer(); void setStyle(uint32_t _flags = STYLE_NORMAL) { m_styleFlags = _flags; } void setTextColor(uint32_t _rgba = 0x000000FF) { m_textColor = toABGR(_rgba); } void setBackgroundColor(uint32_t _rgba = 0x000000FF) { m_backgroundColor = toABGR(_rgba); } void setOverlineColor(uint32_t _rgba = 0x000000FF) { m_overlineColor = toABGR(_rgba); } void setUnderlineColor(uint32_t _rgba = 0x000000FF) { m_underlineColor = toABGR(_rgba); } void setStrikeThroughColor(uint32_t _rgba = 0x000000FF) { m_strikeThroughColor = toABGR(_rgba); } void setPenPosition(float _x, float _y) { m_penX = _x; m_penY = _y; } /// return the size of the text //Rectangle measureText(FontHandle _fontHandle, const char * _string); //Rectangle measureText(FontHandle _fontHandle, const wchar_t * _string); /// append an ASCII/utf-8 string to the buffer using current pen position and color void appendText(FontHandle _fontHandle, const char * _string); /// append a wide char unicode string to the buffer using current pen position and color void appendText(FontHandle _fontHandle, const wchar_t * _string); /// Clear the text buffer and reset its state (pen/color) void clearTextBuffer(); /// get pointer to the vertex buffer to submit it to the graphic card const uint8_t* getVertexBuffer(){ return (uint8_t*) m_vertexBuffer; } /// number of vertex in the vertex buffer uint32_t getVertexCount(){ return m_vertexCount; } /// size in bytes of a vertex uint32_t getVertexSize(){ return sizeof(TextVertex); } /// get a pointer to the index buffer to submit it to the graphic const uint16_t* getIndexBuffer(){ return m_indexBuffer; } /// number of index in the index buffer uint32_t getIndexCount(){ return m_indexCount; } /// size in bytes of an index uint32_t getIndexSize(){ return sizeof(uint16_t); } uint32_t getTextColor(){ return toABGR(m_textColor); } private: void appendGlyph(CodePoint_t _codePoint, const FontInfo& _font, const GlyphInfo& _glyphInfo); void verticalCenterLastLine(float _txtDecalY, float _top, float _bottom); uint32_t toABGR(uint32_t _rgba) { return (((_rgba >> 0) & 0xff) << 24) | (((_rgba >> 8) & 0xff) << 16) | (((_rgba >> 16) & 0xff) << 8) | (((_rgba >> 24) & 0xff) << 0); } uint32_t m_styleFlags; // color states uint32_t m_textColor; uint32_t m_backgroundColor; uint32_t m_overlineColor; uint32_t m_underlineColor; uint32_t m_strikeThroughColor; //position states float m_penX; float m_penY; float m_originX; float m_originY; float m_lineAscender; float m_lineDescender; float m_lineGap; /// FontManager* m_fontManager; void setVertex(uint32_t _i, float _x, float _y, uint32_t _rgba, uint8_t _style = STYLE_NORMAL) { m_vertexBuffer[_i].x = _x; m_vertexBuffer[_i].y = _y; m_vertexBuffer[_i].rgba = _rgba; m_styleBuffer[_i] = _style; } struct TextVertex { float x,y; int16_t u,v,w,t; uint32_t rgba; }; TextVertex* m_vertexBuffer; uint16_t* m_indexBuffer; uint8_t* m_styleBuffer; uint32_t m_vertexCount; uint32_t m_indexCount; uint32_t m_lineStartIndex; }; TextBuffer::TextBuffer(FontManager* _fontManager) { m_styleFlags = STYLE_NORMAL; //0xAABBGGRR m_textColor = 0xFFFFFFFF; m_backgroundColor = 0xFFFFFFFF; m_backgroundColor = 0xFFFFFFFF; m_overlineColor = 0xFFFFFFFF; m_underlineColor = 0xFFFFFFFF; m_strikeThroughColor = 0xFFFFFFFF; m_penX = 0; m_penY = 0; m_originX = 0; m_originY = 0; m_lineAscender = 0; m_lineDescender = 0; m_lineGap = 0; m_fontManager = _fontManager; m_vertexBuffer = new TextVertex[MAX_BUFFERED_CHARACTERS * 4]; m_indexBuffer = new uint16_t[MAX_BUFFERED_CHARACTERS * 6]; m_styleBuffer = new uint8_t[MAX_BUFFERED_CHARACTERS * 4]; m_vertexCount = 0; m_indexCount = 0; m_lineStartIndex = 0; } TextBuffer::~TextBuffer() { delete[] m_vertexBuffer; delete[] m_indexBuffer; } void TextBuffer::appendText(FontHandle _fontHandle, const char * _string) { GlyphInfo glyph; const FontInfo& font = m_fontManager->getFontInfo(_fontHandle); if(m_vertexCount == 0) { m_originX = m_penX; m_originY = m_penY; m_lineDescender = 0;// font.m_descender; m_lineAscender = 0;//font.m_ascender; } uint32_t codepoint; uint32_t state = 0; for (; *_string; ++_string) if (!utf8_decode(&state, &codepoint, *_string)) { if(m_fontManager->getGlyphInfo(_fontHandle, (CodePoint_t)codepoint, glyph)) { appendGlyph((CodePoint_t)codepoint, font, glyph); }else { BX_CHECK(false, "Glyph not found"); } } //printf("U+%04X\n", codepoint); if (state != UTF8_ACCEPT) { // assert(false && "The string is not well-formed"); return; //"The string is not well-formed\n" } } void TextBuffer::appendText(FontHandle _fontHandle, const wchar_t * _string) { GlyphInfo glyph; const FontInfo& font = m_fontManager->getFontInfo(_fontHandle); if(m_vertexCount == 0) { m_originX = m_penX; m_originY = m_penY; m_lineDescender = 0;// font.m_descender; m_lineAscender = 0;//font.m_ascender; m_lineGap = 0; } //parse string for( uint32_t ii=0, end = wcslen(_string) ; ii < end; ++ii ) { //if glyph cached, continue uint32_t _codePoint = _string[ii]; if(m_fontManager->getGlyphInfo(_fontHandle, _codePoint, glyph)) { appendGlyph(_codePoint, font, glyph); }else { BX_CHECK(false, "Glyph not found"); } } } /* TextBuffer::Rectangle TextBuffer::measureText(FontHandle _fontHandle, const char * _string) { } TextBuffer::Rectangle TextBuffer::measureText(FontHandle _fontHandle, const wchar_t * _string) { } */ void TextBuffer::clearTextBuffer() { m_vertexCount = 0; m_indexCount = 0; m_lineStartIndex = 0; m_lineAscender = 0; m_lineDescender = 0; } void TextBuffer::appendGlyph(CodePoint_t _codePoint, const FontInfo& _font, const GlyphInfo& _glyphInfo) { //handle newlines if(_codePoint == L'\n' ) { m_penX = m_originX; m_penY -= m_lineDescender; m_penY += m_lineGap; m_lineDescender = 0; m_lineAscender = 0; m_lineStartIndex = m_vertexCount; return; } if( _font.m_ascender > m_lineAscender || (_font.m_descender < m_lineDescender) ) { if( _font.m_descender < m_lineDescender ) { m_lineDescender = _font.m_descender; m_lineGap = _font.m_lineGap; } float txtDecals = (_font.m_ascender - m_lineAscender); m_lineAscender = _font.m_ascender; m_lineGap = _font.m_lineGap; m_penY += txtDecals; verticalCenterLastLine((txtDecals), (m_penY - m_lineAscender), (m_penY - m_lineDescender+m_lineGap)); } //handle kerning float kerning = 0; /* if( previous && markup->font->kerning ) { kerning = texture_glyph_get_kerning( glyph, previous ); } */ m_penX += kerning * _font.m_scale; GlyphInfo& blackGlyph = m_fontManager->getBlackGlyph(); if( m_styleFlags & STYLE_BACKGROUND && m_backgroundColor & 0xFF000000) { float x0 = ( m_penX - kerning ); float y0 = ( m_penY - m_lineAscender); float x1 = ( (float)x0 + (_glyphInfo.m_advance_x)); float y1 = ( m_penY - m_lineDescender + m_lineGap ); m_fontManager->getAtlas()->packUV(blackGlyph.m_regionIndex, (uint8_t*)m_vertexBuffer,sizeof(TextVertex) *m_vertexCount + offsetof(TextVertex, u), sizeof(TextVertex)); setVertex(m_vertexCount+0, x0, y0, m_backgroundColor,STYLE_BACKGROUND); setVertex(m_vertexCount+1, x0, y1, m_backgroundColor,STYLE_BACKGROUND); setVertex(m_vertexCount+2, x1, y1, m_backgroundColor,STYLE_BACKGROUND); setVertex(m_vertexCount+3, x1, y0, m_backgroundColor,STYLE_BACKGROUND); m_indexBuffer[m_indexCount + 0] = m_vertexCount+0; m_indexBuffer[m_indexCount + 1] = m_vertexCount+1; m_indexBuffer[m_indexCount + 2] = m_vertexCount+2; m_indexBuffer[m_indexCount + 3] = m_vertexCount+0; m_indexBuffer[m_indexCount + 4] = m_vertexCount+2; m_indexBuffer[m_indexCount + 5] = m_vertexCount+3; m_vertexCount += 4; m_indexCount += 6; } if( m_styleFlags & STYLE_UNDERLINE && m_underlineColor & 0xFF000000) { float x0 = ( m_penX - kerning ); float y0 = (m_penY - m_lineDescender/2 ); float x1 = ( (float)x0 + (_glyphInfo.m_advance_x)); float y1 = y0+_font.m_underline_thickness; m_fontManager->getAtlas()->packUV(blackGlyph.m_regionIndex, (uint8_t*)m_vertexBuffer,sizeof(TextVertex) *m_vertexCount + offsetof(TextVertex, u), sizeof(TextVertex)); setVertex(m_vertexCount+0, x0, y0, m_underlineColor,STYLE_UNDERLINE); setVertex(m_vertexCount+1, x0, y1, m_underlineColor,STYLE_UNDERLINE); setVertex(m_vertexCount+2, x1, y1, m_underlineColor,STYLE_UNDERLINE); setVertex(m_vertexCount+3, x1, y0, m_underlineColor,STYLE_UNDERLINE); m_indexBuffer[m_indexCount + 0] = m_vertexCount+0; m_indexBuffer[m_indexCount + 1] = m_vertexCount+1; m_indexBuffer[m_indexCount + 2] = m_vertexCount+2; m_indexBuffer[m_indexCount + 3] = m_vertexCount+0; m_indexBuffer[m_indexCount + 4] = m_vertexCount+2; m_indexBuffer[m_indexCount + 5] = m_vertexCount+3; m_vertexCount += 4; m_indexCount += 6; } if( m_styleFlags & STYLE_OVERLINE && m_overlineColor & 0xFF000000) { float x0 = ( m_penX - kerning ); float y0 = (m_penY - _font.m_ascender ); float x1 = ( (float)x0 + (_glyphInfo.m_advance_x)); float y1 = y0+_font.m_underline_thickness; m_fontManager->getAtlas()->packUV(blackGlyph.m_regionIndex, (uint8_t*)m_vertexBuffer,sizeof(TextVertex) *m_vertexCount + offsetof(TextVertex, u), sizeof(TextVertex)); setVertex(m_vertexCount+0, x0, y0, m_overlineColor,STYLE_OVERLINE); setVertex(m_vertexCount+1, x0, y1, m_overlineColor,STYLE_OVERLINE); setVertex(m_vertexCount+2, x1, y1, m_overlineColor,STYLE_OVERLINE); setVertex(m_vertexCount+3, x1, y0, m_overlineColor,STYLE_OVERLINE); m_indexBuffer[m_indexCount + 0] = m_vertexCount+0; m_indexBuffer[m_indexCount + 1] = m_vertexCount+1; m_indexBuffer[m_indexCount + 2] = m_vertexCount+2; m_indexBuffer[m_indexCount + 3] = m_vertexCount+0; m_indexBuffer[m_indexCount + 4] = m_vertexCount+2; m_indexBuffer[m_indexCount + 5] = m_vertexCount+3; m_vertexCount += 4; m_indexCount += 6; } if( m_styleFlags & STYLE_STRIKE_THROUGH && m_strikeThroughColor & 0xFF000000) { float x0 = ( m_penX - kerning ); float y0 = (m_penY - _font.m_ascender/3 ); float x1 = ( (float)x0 + (_glyphInfo.m_advance_x) ); float y1 = y0+_font.m_underline_thickness; m_fontManager->getAtlas()->packUV(blackGlyph.m_regionIndex, (uint8_t*)m_vertexBuffer,sizeof(TextVertex) *m_vertexCount + offsetof(TextVertex, u), sizeof(TextVertex)); setVertex(m_vertexCount+0, x0, y0, m_strikeThroughColor,STYLE_STRIKE_THROUGH); setVertex(m_vertexCount+1, x0, y1, m_strikeThroughColor,STYLE_STRIKE_THROUGH); setVertex(m_vertexCount+2, x1, y1, m_strikeThroughColor,STYLE_STRIKE_THROUGH); setVertex(m_vertexCount+3, x1, y0, m_strikeThroughColor,STYLE_STRIKE_THROUGH); m_indexBuffer[m_indexCount + 0] = m_vertexCount+0; m_indexBuffer[m_indexCount + 1] = m_vertexCount+1; m_indexBuffer[m_indexCount + 2] = m_vertexCount+2; m_indexBuffer[m_indexCount + 3] = m_vertexCount+0; m_indexBuffer[m_indexCount + 4] = m_vertexCount+2; m_indexBuffer[m_indexCount + 5] = m_vertexCount+3; m_vertexCount += 4; m_indexCount += 6; } //handle glyph float x0_precise = m_penX + (_glyphInfo.m_offset_x); float x0 = ( x0_precise); float y0 = ( m_penY + (_glyphInfo.m_offset_y)); float x1 = ( x0 + _glyphInfo.m_width ); float y1 = ( y0 + _glyphInfo.m_height ); m_fontManager->getAtlas()->packUV(_glyphInfo.m_regionIndex, (uint8_t*)m_vertexBuffer, sizeof(TextVertex) *m_vertexCount + offsetof(TextVertex, u), sizeof(TextVertex)); setVertex(m_vertexCount+0, x0, y0, m_textColor); setVertex(m_vertexCount+1, x0, y1, m_textColor); setVertex(m_vertexCount+2, x1, y1, m_textColor); setVertex(m_vertexCount+3, x1, y0, m_textColor); m_indexBuffer[m_indexCount + 0] = m_vertexCount+0; m_indexBuffer[m_indexCount + 1] = m_vertexCount+1; m_indexBuffer[m_indexCount + 2] = m_vertexCount+2; m_indexBuffer[m_indexCount + 3] = m_vertexCount+0; m_indexBuffer[m_indexCount + 4] = m_vertexCount+2; m_indexBuffer[m_indexCount + 5] = m_vertexCount+3; m_vertexCount += 4; m_indexCount += 6; //TODO see what to do when doing subpixel rendering m_penX += _glyphInfo.m_advance_x; } void TextBuffer::verticalCenterLastLine(float _dy, float _top, float _bottom) { for( uint32_t ii=m_lineStartIndex; ii < m_vertexCount; ii+=4 ) { if( m_styleBuffer[ii] == STYLE_BACKGROUND) { m_vertexBuffer[ii+0].y = _top; m_vertexBuffer[ii+1].y = _bottom; m_vertexBuffer[ii+2].y = _bottom; m_vertexBuffer[ii+3].y = _top; }else{ m_vertexBuffer[ii+0].y += _dy; m_vertexBuffer[ii+1].y += _dy; m_vertexBuffer[ii+2].y += _dy; m_vertexBuffer[ii+3].y += _dy; } } } // **************************************************************** TextBufferManager::TextBufferManager(FontManager* _fontManager):m_fontManager(_fontManager), m_textBufferHandles(MAX_TEXT_BUFFER_COUNT) { m_textBuffers = new BufferCache[MAX_TEXT_BUFFER_COUNT]; } TextBufferManager::~TextBufferManager() { BX_CHECK(m_textBufferHandles.getNumHandles() == 0, "All the text buffers must be destroyed before destroying the manager"); delete[] m_textBuffers; bgfx::destroyUniform(u_texColor); bgfx::destroyUniform(u_inverse_gamma); //bgfx::destroyProgram(m_basicProgram); //bgfx::destroyProgram(m_distanceProgram); //bgfx::destroyProgram(m_distanceSubpixelProgram); } void TextBufferManager::init(bgfx::ProgramHandle _basicProgram, bgfx::ProgramHandle _distanceProgram, bgfx::ProgramHandle _distanceSubpixelProgram) { m_basicProgram = _basicProgram; m_distanceProgram = _distanceProgram; m_distanceSubpixelProgram = _distanceSubpixelProgram; m_vertexDecl.begin(); m_vertexDecl.add(bgfx::Attrib::Position, 2, bgfx::AttribType::Float); m_vertexDecl.add(bgfx::Attrib::TexCoord0, 4, bgfx::AttribType::Int16, true); m_vertexDecl.add(bgfx::Attrib::Color0, 4, bgfx::AttribType::Uint8, true); m_vertexDecl.end(); u_texColor = bgfx::createUniform("u_texColor", bgfx::UniformType::Uniform1iv); u_inverse_gamma = bgfx::createUniform("u_inverse_gamma", bgfx::UniformType::Uniform1f); } /* void TextBufferManager::init(const char* _shaderPath) { m_vertexDecl.begin(); m_vertexDecl.add(bgfx::Attrib::Position, 2, bgfx::AttribType::Float); m_vertexDecl.add(bgfx::Attrib::TexCoord0, 4, bgfx::AttribType::Int16, true); m_vertexDecl.add(bgfx::Attrib::Color0, 4, bgfx::AttribType::Uint8, true); m_vertexDecl.end(); u_texColor = bgfx::createUniform("u_texColor", bgfx::UniformType::Uniform1iv); u_inverse_gamma = bgfx::createUniform("u_inverse_gamma", bgfx::UniformType::Uniform1f); const bgfx::Memory* mem; mem = loadShader(_shaderPath, "vs_font_basic"); bgfx::VertexShaderHandle vsh = bgfx::createVertexShader(mem); mem = loadShader(_shaderPath, "fs_font_basic"); bgfx::FragmentShaderHandle fsh = bgfx::createFragmentShader(mem); m_basicProgram = bgfx::createProgram(vsh, fsh); bgfx::destroyVertexShader(vsh); bgfx::destroyFragmentShader(fsh); mem = loadShader(_shaderPath, "vs_font_distance_field"); vsh = bgfx::createVertexShader(mem); mem = loadShader(_shaderPath, "fs_font_distance_field"); fsh = bgfx::createFragmentShader(mem); m_distanceProgram = bgfx::createProgram(vsh, fsh); bgfx::destroyVertexShader(vsh); bgfx::destroyFragmentShader(fsh); mem = loadShader(_shaderPath, "vs_font_distance_field_subpixel"); vsh = bgfx::createVertexShader(mem); mem = loadShader(_shaderPath, "fs_font_distance_field_subpixel"); fsh = bgfx::createFragmentShader(mem); m_distanceSubpixelProgram = bgfx::createProgram(vsh, fsh); bgfx::destroyVertexShader(vsh); bgfx::destroyFragmentShader(fsh); }*/ TextBufferHandle TextBufferManager::createTextBuffer(FontType _type, BufferType _bufferType) { uint16_t textIdx = m_textBufferHandles.alloc(); BufferCache& bc = m_textBuffers[textIdx]; bc.m_textBuffer = new TextBuffer(m_fontManager); bc.m_fontType = _type; bc.m_bufferType = _bufferType; bc.m_indexBufferHandle = bgfx::invalidHandle; bc.m_vertexBufferHandle = bgfx::invalidHandle; TextBufferHandle ret = {textIdx}; return ret; } void TextBufferManager::destroyTextBuffer(TextBufferHandle _handle) { BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used"); BufferCache& bc = m_textBuffers[_handle.idx]; m_textBufferHandles.free(_handle.idx); delete bc.m_textBuffer; bc.m_textBuffer = NULL; if(bc.m_vertexBufferHandle == bgfx::invalidHandle ) return; switch(bc.m_bufferType) { case STATIC: { bgfx::IndexBufferHandle ibh; bgfx::VertexBufferHandle vbh; ibh.idx = bc.m_indexBufferHandle; vbh.idx = bc.m_vertexBufferHandle; bgfx::destroyIndexBuffer(ibh); bgfx::destroyVertexBuffer(vbh); } break; case DYNAMIC: bgfx::DynamicIndexBufferHandle ibh; bgfx::DynamicVertexBufferHandle vbh; ibh.idx = bc.m_indexBufferHandle; vbh.idx = bc.m_vertexBufferHandle; bgfx::destroyDynamicIndexBuffer(ibh); bgfx::destroyDynamicVertexBuffer(vbh); break; case TRANSIENT: //naturally destroyed break; } } void TextBufferManager::submitTextBuffer(TextBufferHandle _handle, uint8_t _id, int32_t _depth) { BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used"); BufferCache& bc = m_textBuffers[_handle.idx]; uint32_t indexSize = bc.m_textBuffer->getIndexCount() * bc.m_textBuffer->getIndexSize(); uint32_t vertexSize = bc.m_textBuffer->getVertexCount() * bc.m_textBuffer->getVertexSize(); const bgfx::Memory* mem; bgfx::setTexture(0, u_texColor, m_fontManager->getAtlas()->getTextureHandle()); float inverse_gamme = 1.0f/2.2f; bgfx::setUniform(u_inverse_gamma, &inverse_gamme); switch (bc.m_fontType) { case FONT_TYPE_ALPHA: bgfx::setProgram(m_basicProgram); bgfx::setState( BGFX_STATE_RGB_WRITE | BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA) ); break; case FONT_TYPE_DISTANCE: bgfx::setProgram(m_distanceProgram); bgfx::setState( BGFX_STATE_RGB_WRITE | BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA) ); break; case FONT_TYPE_DISTANCE_SUBPIXEL: bgfx::setProgram(m_distanceSubpixelProgram); bgfx::setState( BGFX_STATE_RGB_WRITE |BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_FACTOR, BGFX_STATE_BLEND_INV_SRC_COLOR) , bc.m_textBuffer->getTextColor()); break; } switch(bc.m_bufferType) { case STATIC: { bgfx::IndexBufferHandle ibh; bgfx::VertexBufferHandle vbh; if(bc.m_vertexBufferHandle == bgfx::invalidHandle) { mem = bgfx::alloc(indexSize); memcpy(mem->data, bc.m_textBuffer->getIndexBuffer(), indexSize); ibh = bgfx::createIndexBuffer(mem); mem = bgfx::alloc(vertexSize); memcpy(mem->data, bc.m_textBuffer->getVertexBuffer(), vertexSize); vbh = bgfx::createVertexBuffer(mem, m_vertexDecl); bc.m_indexBufferHandle = ibh.idx ; bc.m_vertexBufferHandle = vbh.idx; }else { ibh.idx = bc.m_indexBufferHandle; vbh.idx = bc.m_vertexBufferHandle; } bgfx::setVertexBuffer(vbh, bc.m_textBuffer->getVertexCount()); bgfx::setIndexBuffer(ibh, bc.m_textBuffer->getIndexCount()); }break; case DYNAMIC: { bgfx::DynamicIndexBufferHandle ibh; bgfx::DynamicVertexBufferHandle vbh; if(bc.m_vertexBufferHandle == bgfx::invalidHandle) { mem = bgfx::alloc(indexSize); memcpy(mem->data, bc.m_textBuffer->getIndexBuffer(), indexSize); ibh = bgfx::createDynamicIndexBuffer(mem); mem = bgfx::alloc(vertexSize); memcpy(mem->data, bc.m_textBuffer->getVertexBuffer(), vertexSize); vbh = bgfx::createDynamicVertexBuffer(mem, m_vertexDecl); bc.m_indexBufferHandle = ibh.idx ; bc.m_vertexBufferHandle = vbh.idx; }else { ibh.idx = bc.m_indexBufferHandle; vbh.idx = bc.m_vertexBufferHandle; mem = bgfx::alloc(indexSize); memcpy(mem->data, bc.m_textBuffer->getIndexBuffer(), indexSize); bgfx::updateDynamicIndexBuffer(ibh, mem); mem = bgfx::alloc(vertexSize); memcpy(mem->data, bc.m_textBuffer->getVertexBuffer(), vertexSize); bgfx::updateDynamicVertexBuffer(vbh, mem); } bgfx::setVertexBuffer(vbh, bc.m_textBuffer->getVertexCount()); bgfx::setIndexBuffer(ibh, bc.m_textBuffer->getIndexCount()); }break; case TRANSIENT: { bgfx::TransientIndexBuffer tib; bgfx::TransientVertexBuffer tvb; bgfx::allocTransientIndexBuffer(&tib, bc.m_textBuffer->getIndexCount()); bgfx::allocTransientVertexBuffer(&tvb, bc.m_textBuffer->getVertexCount(), m_vertexDecl); memcpy(tib.data, bc.m_textBuffer->getIndexBuffer(), indexSize); memcpy(tvb.data, bc.m_textBuffer->getVertexBuffer(), vertexSize); bgfx::setVertexBuffer(&tvb, bc.m_textBuffer->getVertexCount()); bgfx::setIndexBuffer(&tib, bc.m_textBuffer->getIndexCount()); }break; } bgfx::submit(_id, _depth); } void TextBufferManager::submitTextBufferMask(TextBufferHandle /*_handle*/, uint32_t /*_viewMask*/, int32_t /*_depth*/) { //TODO BX_CHECK(false, "TODO TODO"); } void TextBufferManager::setStyle(TextBufferHandle _handle, uint32_t _flags ) { BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used"); BufferCache& bc = m_textBuffers[_handle.idx]; bc.m_textBuffer->setStyle(_flags); } void TextBufferManager::setTextColor(TextBufferHandle _handle, uint32_t _rgba ) { BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used"); BufferCache& bc = m_textBuffers[_handle.idx]; bc.m_textBuffer->setTextColor(_rgba); } void TextBufferManager::setBackgroundColor(TextBufferHandle _handle, uint32_t _rgba ) { BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used"); BufferCache& bc = m_textBuffers[_handle.idx]; bc.m_textBuffer->setBackgroundColor(_rgba); } void TextBufferManager::setOverlineColor(TextBufferHandle _handle, uint32_t _rgba ) { BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used"); BufferCache& bc = m_textBuffers[_handle.idx]; bc.m_textBuffer->setOverlineColor(_rgba); } void TextBufferManager::setUnderlineColor(TextBufferHandle _handle, uint32_t _rgba ) { BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used"); BufferCache& bc = m_textBuffers[_handle.idx]; bc.m_textBuffer->setUnderlineColor(_rgba); } void TextBufferManager::setStrikeThroughColor(TextBufferHandle _handle, uint32_t _rgba ) { BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used"); BufferCache& bc = m_textBuffers[_handle.idx]; bc.m_textBuffer->setStrikeThroughColor(_rgba); } void TextBufferManager::setPenPosition(TextBufferHandle _handle, float _x, float _y) { BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used"); BufferCache& bc = m_textBuffers[_handle.idx]; bc.m_textBuffer->setPenPosition(_x,_y); } void TextBufferManager::appendText(TextBufferHandle _handle, FontHandle _fontHandle, const char * _string) { BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used"); BufferCache& bc = m_textBuffers[_handle.idx]; bc.m_textBuffer->appendText(_fontHandle, _string); } void TextBufferManager::appendText(TextBufferHandle _handle, FontHandle _fontHandle, const wchar_t * _string) { BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used"); BufferCache& bc = m_textBuffers[_handle.idx]; bc.m_textBuffer->appendText(_fontHandle, _string); } void TextBufferManager::clearTextBuffer(TextBufferHandle _handle) { BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used"); BufferCache& bc = m_textBuffers[_handle.idx]; bc.m_textBuffer->clearTextBuffer(); }