827 lines
27 KiB
C++
827 lines
27 KiB
C++
/* Copyright 2013 Jeremie Roy. All rights reserved.
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* License: http://www.opensource.org/licenses/BSD-2-Clause
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*/
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#include "text_buffer_manager.h"
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#include "../cube_atlas.h"
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#include <bx/bx.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#include <stddef.h> /* offsetof */
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#include "vs_font_basic.bin.h"
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#include "fs_font_basic.bin.h"
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#include "vs_font_distance_field.bin.h"
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#include "fs_font_distance_field.bin.h"
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#include "vs_font_distance_field_subpixel.bin.h"
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#include "fs_font_distance_field_subpixel.bin.h"
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#define MAX_TEXT_BUFFER_COUNT 64
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#define MAX_BUFFERED_CHARACTERS 8192
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// Table from Flexible and Economical UTF-8 Decoder
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// Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
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// See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details.
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static const uint8_t utf8d[] = {
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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
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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
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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
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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
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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
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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
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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
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0xa,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x4,0x3,0x3, // e0..ef
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0xb,0x6,0x6,0x6,0x5,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8, // f0..ff
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0x0,0x1,0x2,0x3,0x5,0x8,0x7,0x1,0x1,0x1,0x4,0x6,0x1,0x1,0x1,0x1, // s0..s0
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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
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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
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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
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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
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};
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#define UTF8_ACCEPT 0
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#define UTF8_REJECT 1
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inline uint32_t utf8_decode(uint32_t* state, uint32_t* codep, uint32_t byte) {
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uint32_t type = utf8d[byte];
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*codep = (*state != UTF8_ACCEPT) ?
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(byte & 0x3fu) | (*codep << 6) :
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(0xff >> type) & (byte);
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*state = utf8d[256 + *state*16 + type];
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return *state;
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}
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inline int utf8_strlen(uint8_t* s, size_t* count) {
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uint32_t codepoint;
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uint32_t state = 0;
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for (*count = 0; *s; ++s)
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if (!utf8_decode(&state, &codepoint, *s))
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*count += 1;
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return state != UTF8_ACCEPT;
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}
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class TextBuffer
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{
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public:
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/// TextBuffer is bound to a fontManager for glyph retrieval
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/// @remark the ownership of the manager is not taken
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TextBuffer(FontManager* _fontManager);
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~TextBuffer();
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void setStyle(uint32_t _flags = STYLE_NORMAL) { m_styleFlags = _flags; }
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void setTextColor(uint32_t _rgba = 0x000000FF) { m_textColor = toABGR(_rgba); }
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void setBackgroundColor(uint32_t _rgba = 0x000000FF) { m_backgroundColor = toABGR(_rgba); }
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void setOverlineColor(uint32_t _rgba = 0x000000FF) { m_overlineColor = toABGR(_rgba); }
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void setUnderlineColor(uint32_t _rgba = 0x000000FF) { m_underlineColor = toABGR(_rgba); }
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void setStrikeThroughColor(uint32_t _rgba = 0x000000FF) { m_strikeThroughColor = toABGR(_rgba); }
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void setPenPosition(float _x, float _y) { m_penX = _x; m_penY = _y; }
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/// return the size of the text
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//Rectangle measureText(FontHandle _fontHandle, const char * _string);
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//Rectangle measureText(FontHandle _fontHandle, const wchar_t * _string);
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/// append an ASCII/utf-8 string to the buffer using current pen position and color
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void appendText(FontHandle _fontHandle, const char * _string);
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/// append a wide char unicode string to the buffer using current pen position and color
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void appendText(FontHandle _fontHandle, const wchar_t * _string);
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/// Clear the text buffer and reset its state (pen/color)
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void clearTextBuffer();
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/// get pointer to the vertex buffer to submit it to the graphic card
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const uint8_t* getVertexBuffer(){ return (uint8_t*) m_vertexBuffer; }
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/// number of vertex in the vertex buffer
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uint32_t getVertexCount(){ return m_vertexCount; }
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/// size in bytes of a vertex
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uint32_t getVertexSize(){ return sizeof(TextVertex); }
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/// get a pointer to the index buffer to submit it to the graphic
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const uint16_t* getIndexBuffer(){ return m_indexBuffer; }
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/// number of index in the index buffer
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uint32_t getIndexCount(){ return m_indexCount; }
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/// size in bytes of an index
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uint32_t getIndexSize(){ return sizeof(uint16_t); }
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uint32_t getTextColor(){ return toABGR(m_textColor); }
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TextRectangle getRectangle() const { return m_rectangle; }
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private:
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void appendGlyph(CodePoint_t _codePoint, const FontInfo& _font, const GlyphInfo& _glyphInfo);
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void verticalCenterLastLine(float _txtDecalY, float _top, float _bottom);
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uint32_t toABGR(uint32_t _rgba)
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{
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return (((_rgba >> 0) & 0xff) << 24) |
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(((_rgba >> 8) & 0xff) << 16) |
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(((_rgba >> 16) & 0xff) << 8) |
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(((_rgba >> 24) & 0xff) << 0);
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}
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uint32_t m_styleFlags;
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// color states
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uint32_t m_textColor;
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uint32_t m_backgroundColor;
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uint32_t m_overlineColor;
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uint32_t m_underlineColor;
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uint32_t m_strikeThroughColor;
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//position states
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float m_penX;
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float m_penY;
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float m_originX;
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float m_originY;
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float m_lineAscender;
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float m_lineDescender;
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float m_lineGap;
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TextRectangle m_rectangle;
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///
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FontManager* m_fontManager;
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void setVertex(uint32_t _i, float _x, float _y, uint32_t _rgba, uint8_t _style = STYLE_NORMAL)
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{
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m_vertexBuffer[_i].x = _x;
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m_vertexBuffer[_i].y = _y;
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m_vertexBuffer[_i].rgba = _rgba;
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m_styleBuffer[_i] = _style;
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}
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struct TextVertex
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{
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float x,y;
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int16_t u,v,w,t;
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uint32_t rgba;
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};
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TextVertex* m_vertexBuffer;
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uint16_t* m_indexBuffer;
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uint8_t* m_styleBuffer;
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uint32_t m_vertexCount;
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uint32_t m_indexCount;
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uint32_t m_lineStartIndex;
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};
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TextBuffer::TextBuffer(FontManager* _fontManager)
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{
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m_styleFlags = STYLE_NORMAL;
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//0xAABBGGRR
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m_textColor = 0xFFFFFFFF;
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m_backgroundColor = 0xFFFFFFFF;
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m_backgroundColor = 0xFFFFFFFF;
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m_overlineColor = 0xFFFFFFFF;
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m_underlineColor = 0xFFFFFFFF;
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m_strikeThroughColor = 0xFFFFFFFF;
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m_penX = 0;
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m_penY = 0;
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m_originX = 0;
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m_originY = 0;
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m_lineAscender = 0;
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m_lineDescender = 0;
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m_lineGap = 0;
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m_fontManager = _fontManager;
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m_rectangle.width = 0;
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m_rectangle.height = 0;
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m_vertexBuffer = new TextVertex[MAX_BUFFERED_CHARACTERS * 4];
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m_indexBuffer = new uint16_t[MAX_BUFFERED_CHARACTERS * 6];
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m_styleBuffer = new uint8_t[MAX_BUFFERED_CHARACTERS * 4];
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m_vertexCount = 0;
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m_indexCount = 0;
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m_lineStartIndex = 0;
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}
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TextBuffer::~TextBuffer()
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{
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delete[] m_vertexBuffer;
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delete[] m_indexBuffer;
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}
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void TextBuffer::appendText(FontHandle _fontHandle, const char * _string)
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{
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GlyphInfo glyph;
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const FontInfo& font = m_fontManager->getFontInfo(_fontHandle);
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if(m_vertexCount == 0)
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{
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m_originX = m_penX;
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m_originY = m_penY;
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m_lineDescender = 0;// font.m_descender;
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m_lineAscender = 0;//font.m_ascender;
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}
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uint32_t codepoint;
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uint32_t state = 0;
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for (; *_string; ++_string)
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if (!utf8_decode(&state, &codepoint, *_string))
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{
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if(m_fontManager->getGlyphInfo(_fontHandle, (CodePoint_t)codepoint, glyph))
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{
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appendGlyph((CodePoint_t)codepoint, font, glyph);
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}else
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{
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BX_CHECK(false, "Glyph not found");
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}
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}
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//printf("U+%04X\n", codepoint);
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if (state != UTF8_ACCEPT)
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{
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// assert(false && "The string is not well-formed");
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return; //"The string is not well-formed\n"
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}
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}
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void TextBuffer::appendText(FontHandle _fontHandle, const wchar_t * _string)
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{
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GlyphInfo glyph;
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const FontInfo& font = m_fontManager->getFontInfo(_fontHandle);
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if(m_vertexCount == 0)
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{
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m_originX = m_penX;
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m_originY = m_penY;
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m_lineDescender = 0;// font.m_descender;
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m_lineAscender = 0;//font.m_ascender;
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m_lineGap = 0;
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}
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//parse string
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for( uint32_t ii=0, end = wcslen(_string) ; ii < end; ++ii )
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{
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//if glyph cached, continue
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uint32_t _codePoint = _string[ii];
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if(m_fontManager->getGlyphInfo(_fontHandle, _codePoint, glyph))
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{
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appendGlyph(_codePoint, font, glyph);
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}else
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{
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BX_CHECK(false, "Glyph not found");
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}
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}
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}
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/*
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TextBuffer::Rectangle TextBuffer::measureText(FontHandle _fontHandle, const char * _string)
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{
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}
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TextBuffer::Rectangle TextBuffer::measureText(FontHandle _fontHandle, const wchar_t * _string)
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{
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}
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*/
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void TextBuffer::clearTextBuffer()
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{
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m_vertexCount = 0;
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m_indexCount = 0;
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m_lineStartIndex = 0;
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m_lineAscender = 0;
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m_lineDescender = 0;
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m_rectangle.width = 0;
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m_rectangle.height = 0;
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}
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void TextBuffer::appendGlyph(CodePoint_t _codePoint, const FontInfo& _font, const GlyphInfo& _glyphInfo)
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{
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//handle newlines
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if(_codePoint == L'\n' )
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{
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m_penX = m_originX;
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m_penY -= m_lineDescender;
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m_penY += m_lineGap;
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m_lineDescender = 0;
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m_lineAscender = 0;
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m_lineStartIndex = m_vertexCount;
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return;
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}
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if( _font.ascender > m_lineAscender || (_font.descender < m_lineDescender) )
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{
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if( _font.descender < m_lineDescender )
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{
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m_lineDescender = _font.descender;
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m_lineGap = _font.lineGap;
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}
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float txtDecals = (_font.ascender - m_lineAscender);
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m_lineAscender = _font.ascender;
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m_lineGap = _font.lineGap;
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m_penY += txtDecals;
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verticalCenterLastLine((txtDecals), (m_penY - m_lineAscender), (m_penY - m_lineDescender+m_lineGap));
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}
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//handle kerning
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float kerning = 0;
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/*
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if( previous && markup->font->kerning )
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{
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kerning = texture_glyph_get_kerning( glyph, previous );
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}
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*/
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m_penX += kerning * _font.scale;
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GlyphInfo& blackGlyph = m_fontManager->getBlackGlyph();
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if( m_styleFlags & STYLE_BACKGROUND && m_backgroundColor & 0xFF000000)
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{
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float x0 = ( m_penX - kerning );
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float y0 = ( m_penY - m_lineAscender);
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float x1 = ( (float)x0 + (_glyphInfo.advance_x));
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float y1 = ( m_penY - m_lineDescender + m_lineGap );
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m_fontManager->getAtlas()->packUV(blackGlyph.regionIndex, (uint8_t*)m_vertexBuffer,sizeof(TextVertex) *m_vertexCount + offsetof(TextVertex, u), sizeof(TextVertex));
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setVertex(m_vertexCount+0, x0, y0, m_backgroundColor,STYLE_BACKGROUND);
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setVertex(m_vertexCount+1, x0, y1, m_backgroundColor,STYLE_BACKGROUND);
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setVertex(m_vertexCount+2, x1, y1, m_backgroundColor,STYLE_BACKGROUND);
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setVertex(m_vertexCount+3, x1, y0, m_backgroundColor,STYLE_BACKGROUND);
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m_indexBuffer[m_indexCount + 0] = m_vertexCount+0;
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m_indexBuffer[m_indexCount + 1] = m_vertexCount+1;
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m_indexBuffer[m_indexCount + 2] = m_vertexCount+2;
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m_indexBuffer[m_indexCount + 3] = m_vertexCount+0;
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m_indexBuffer[m_indexCount + 4] = m_vertexCount+2;
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m_indexBuffer[m_indexCount + 5] = m_vertexCount+3;
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m_vertexCount += 4;
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m_indexCount += 6;
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}
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if( m_styleFlags & STYLE_UNDERLINE && m_underlineColor & 0xFF000000)
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{
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float x0 = ( m_penX - kerning );
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float y0 = (m_penY - m_lineDescender/2 );
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float x1 = ( (float)x0 + (_glyphInfo.advance_x));
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float y1 = y0+_font.underline_thickness;
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m_fontManager->getAtlas()->packUV(blackGlyph.regionIndex, (uint8_t*)m_vertexBuffer,sizeof(TextVertex) *m_vertexCount + offsetof(TextVertex, u), sizeof(TextVertex));
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setVertex(m_vertexCount+0, x0, y0, m_underlineColor,STYLE_UNDERLINE);
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setVertex(m_vertexCount+1, x0, y1, m_underlineColor,STYLE_UNDERLINE);
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setVertex(m_vertexCount+2, x1, y1, m_underlineColor,STYLE_UNDERLINE);
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setVertex(m_vertexCount+3, x1, y0, m_underlineColor,STYLE_UNDERLINE);
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m_indexBuffer[m_indexCount + 0] = m_vertexCount+0;
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m_indexBuffer[m_indexCount + 1] = m_vertexCount+1;
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m_indexBuffer[m_indexCount + 2] = m_vertexCount+2;
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m_indexBuffer[m_indexCount + 3] = m_vertexCount+0;
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m_indexBuffer[m_indexCount + 4] = m_vertexCount+2;
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m_indexBuffer[m_indexCount + 5] = m_vertexCount+3;
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m_vertexCount += 4;
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m_indexCount += 6;
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}
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if( m_styleFlags & STYLE_OVERLINE && m_overlineColor & 0xFF000000)
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{
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float x0 = ( m_penX - kerning );
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float y0 = (m_penY - _font.ascender );
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float x1 = ( (float)x0 + (_glyphInfo.advance_x));
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float y1 = y0+_font.underline_thickness;
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m_fontManager->getAtlas()->packUV(blackGlyph.regionIndex, (uint8_t*)m_vertexBuffer,sizeof(TextVertex) *m_vertexCount + offsetof(TextVertex, u), sizeof(TextVertex));
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setVertex(m_vertexCount+0, x0, y0, m_overlineColor,STYLE_OVERLINE);
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setVertex(m_vertexCount+1, x0, y1, m_overlineColor,STYLE_OVERLINE);
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setVertex(m_vertexCount+2, x1, y1, m_overlineColor,STYLE_OVERLINE);
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setVertex(m_vertexCount+3, x1, y0, m_overlineColor,STYLE_OVERLINE);
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m_indexBuffer[m_indexCount + 0] = m_vertexCount+0;
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m_indexBuffer[m_indexCount + 1] = m_vertexCount+1;
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m_indexBuffer[m_indexCount + 2] = m_vertexCount+2;
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m_indexBuffer[m_indexCount + 3] = m_vertexCount+0;
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m_indexBuffer[m_indexCount + 4] = m_vertexCount+2;
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m_indexBuffer[m_indexCount + 5] = m_vertexCount+3;
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m_vertexCount += 4;
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m_indexCount += 6;
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}
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if( m_styleFlags & STYLE_STRIKE_THROUGH && m_strikeThroughColor & 0xFF000000)
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{
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float x0 = ( m_penX - kerning );
|
|
float y0 = (m_penY - _font.ascender/3 );
|
|
float x1 = ( (float)x0 + (_glyphInfo.advance_x) );
|
|
float y1 = y0+_font.underline_thickness;
|
|
|
|
m_fontManager->getAtlas()->packUV(blackGlyph.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.offset_x);
|
|
float x0 = ( x0_precise);
|
|
float y0 = ( m_penY + (_glyphInfo.offset_y));
|
|
float x1 = ( x0 + _glyphInfo.width );
|
|
float y1 = ( y0 + _glyphInfo.height );
|
|
|
|
m_fontManager->getAtlas()->packUV(_glyphInfo.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;
|
|
|
|
m_penX += _glyphInfo.advance_x;
|
|
if(m_penX > m_rectangle.width) m_rectangle.width = m_penX;
|
|
if( (m_penY - m_lineDescender) > m_rectangle.height) m_rectangle.height = (m_penY - m_lineDescender);
|
|
//if(x1 > m_rectangle.width) m_rectangle.width = x1;
|
|
//if(y1 > m_rectangle.height) m_rectangle.height = y1;
|
|
}
|
|
|
|
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];
|
|
|
|
const bgfx::Memory* vs_font_basic;
|
|
const bgfx::Memory* fs_font_basic;
|
|
const bgfx::Memory* vs_font_distance_field;
|
|
const bgfx::Memory* fs_font_distance_field;
|
|
const bgfx::Memory* vs_font_distance_field_subpixel;
|
|
const bgfx::Memory* fs_font_distance_field_subpixel;
|
|
|
|
switch (bgfx::getRendererType() )
|
|
{
|
|
case bgfx::RendererType::Direct3D9:
|
|
vs_font_basic = bgfx::makeRef(vs_font_basic_dx9, sizeof(vs_font_basic_dx9) );
|
|
fs_font_basic = bgfx::makeRef(fs_font_basic_dx9, sizeof(fs_font_basic_dx9) );
|
|
vs_font_distance_field = bgfx::makeRef(vs_font_distance_field_dx9, sizeof(vs_font_distance_field_dx9) );
|
|
fs_font_distance_field = bgfx::makeRef(fs_font_distance_field_dx9, sizeof(fs_font_distance_field_dx9) );
|
|
vs_font_distance_field_subpixel = bgfx::makeRef(vs_font_distance_field_subpixel_dx9, sizeof(vs_font_distance_field_subpixel_dx9) );
|
|
fs_font_distance_field_subpixel = bgfx::makeRef(fs_font_distance_field_subpixel_dx9, sizeof(fs_font_distance_field_subpixel_dx9) );
|
|
break;
|
|
|
|
case bgfx::RendererType::Direct3D11:
|
|
vs_font_basic = bgfx::makeRef(vs_font_basic_dx11, sizeof(vs_font_basic_dx11) );
|
|
fs_font_basic = bgfx::makeRef(fs_font_basic_dx11, sizeof(fs_font_basic_dx11) );
|
|
vs_font_distance_field = bgfx::makeRef(vs_font_distance_field_dx11, sizeof(vs_font_distance_field_dx11) );
|
|
fs_font_distance_field = bgfx::makeRef(fs_font_distance_field_dx11, sizeof(fs_font_distance_field_dx11) );
|
|
vs_font_distance_field_subpixel = bgfx::makeRef(vs_font_distance_field_subpixel_dx11, sizeof(vs_font_distance_field_subpixel_dx11) );
|
|
fs_font_distance_field_subpixel = bgfx::makeRef(fs_font_distance_field_subpixel_dx11, sizeof(fs_font_distance_field_subpixel_dx11) );
|
|
break;
|
|
|
|
default:
|
|
vs_font_basic = bgfx::makeRef(vs_font_basic_glsl, sizeof(vs_font_basic_glsl) );
|
|
fs_font_basic = bgfx::makeRef(fs_font_basic_glsl, sizeof(fs_font_basic_glsl) );
|
|
vs_font_distance_field = bgfx::makeRef(vs_font_distance_field_glsl, sizeof(vs_font_distance_field_glsl) );
|
|
fs_font_distance_field = bgfx::makeRef(fs_font_distance_field_glsl, sizeof(fs_font_distance_field_glsl) );
|
|
vs_font_distance_field_subpixel = bgfx::makeRef(vs_font_distance_field_subpixel_glsl, sizeof(vs_font_distance_field_subpixel_glsl) );
|
|
fs_font_distance_field_subpixel = bgfx::makeRef(fs_font_distance_field_subpixel_glsl, sizeof(fs_font_distance_field_subpixel_glsl) );
|
|
break;
|
|
}
|
|
|
|
bgfx::VertexShaderHandle vsh;
|
|
bgfx::FragmentShaderHandle fsh;
|
|
|
|
vsh = bgfx::createVertexShader(vs_font_basic);
|
|
fsh = bgfx::createFragmentShader(fs_font_basic);
|
|
m_basicProgram = bgfx::createProgram(vsh, fsh);
|
|
bgfx::destroyVertexShader(vsh);
|
|
bgfx::destroyFragmentShader(fsh);
|
|
|
|
vsh = bgfx::createVertexShader(vs_font_distance_field);
|
|
fsh = bgfx::createFragmentShader(fs_font_distance_field);
|
|
m_distanceProgram = bgfx::createProgram(vsh, fsh);
|
|
bgfx::destroyVertexShader(vsh);
|
|
bgfx::destroyFragmentShader(fsh);
|
|
|
|
vsh = bgfx::createVertexShader(vs_font_distance_field_subpixel);
|
|
fsh = bgfx::createFragmentShader(fs_font_distance_field_subpixel);
|
|
m_distanceSubpixelProgram = bgfx::createProgram(vsh, fsh);
|
|
bgfx::destroyVertexShader(vsh);
|
|
bgfx::destroyFragmentShader(fsh);
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
TextBufferHandle TextBufferManager::createTextBuffer(FontType _type, BufferType _bufferType)
|
|
{
|
|
uint16_t textIdx = m_textBufferHandles.alloc();
|
|
BufferCache& bc = m_textBuffers[textIdx];
|
|
|
|
bc.textBuffer = new TextBuffer(m_fontManager);
|
|
bc.fontType = _type;
|
|
bc.bufferType = _bufferType;
|
|
bc.indexBufferHandle = bgfx::invalidHandle;
|
|
bc.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.textBuffer;
|
|
bc.textBuffer = NULL;
|
|
|
|
if(bc.vertexBufferHandle == bgfx::invalidHandle ) return;
|
|
|
|
switch(bc.bufferType)
|
|
{
|
|
case STATIC:
|
|
{
|
|
bgfx::IndexBufferHandle ibh;
|
|
bgfx::VertexBufferHandle vbh;
|
|
ibh.idx = bc.indexBufferHandle;
|
|
vbh.idx = bc.vertexBufferHandle;
|
|
bgfx::destroyIndexBuffer(ibh);
|
|
bgfx::destroyVertexBuffer(vbh);
|
|
}
|
|
|
|
break;
|
|
case DYNAMIC:
|
|
bgfx::DynamicIndexBufferHandle ibh;
|
|
bgfx::DynamicVertexBufferHandle vbh;
|
|
ibh.idx = bc.indexBufferHandle;
|
|
vbh.idx = bc.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.textBuffer->getIndexCount() * bc.textBuffer->getIndexSize();
|
|
uint32_t vertexSize = bc.textBuffer->getVertexCount() * bc.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.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.textBuffer->getTextColor());
|
|
break;
|
|
}
|
|
|
|
switch(bc.bufferType)
|
|
{
|
|
case STATIC:
|
|
{
|
|
bgfx::IndexBufferHandle ibh;
|
|
bgfx::VertexBufferHandle vbh;
|
|
|
|
if(bc.vertexBufferHandle == bgfx::invalidHandle)
|
|
{
|
|
mem = bgfx::alloc(indexSize);
|
|
memcpy(mem->data, bc.textBuffer->getIndexBuffer(), indexSize);
|
|
ibh = bgfx::createIndexBuffer(mem);
|
|
|
|
mem = bgfx::alloc(vertexSize);
|
|
memcpy(mem->data, bc.textBuffer->getVertexBuffer(), vertexSize);
|
|
vbh = bgfx::createVertexBuffer(mem, m_vertexDecl);
|
|
|
|
bc.indexBufferHandle = ibh.idx ;
|
|
bc.vertexBufferHandle = vbh.idx;
|
|
}else
|
|
{
|
|
ibh.idx = bc.indexBufferHandle;
|
|
vbh.idx = bc.vertexBufferHandle;
|
|
}
|
|
bgfx::setVertexBuffer(vbh, bc.textBuffer->getVertexCount());
|
|
bgfx::setIndexBuffer(ibh, bc.textBuffer->getIndexCount());
|
|
}break;
|
|
case DYNAMIC:
|
|
{
|
|
bgfx::DynamicIndexBufferHandle ibh;
|
|
bgfx::DynamicVertexBufferHandle vbh;
|
|
|
|
if(bc.vertexBufferHandle == bgfx::invalidHandle)
|
|
{
|
|
mem = bgfx::alloc(indexSize);
|
|
memcpy(mem->data, bc.textBuffer->getIndexBuffer(), indexSize);
|
|
ibh = bgfx::createDynamicIndexBuffer(mem);
|
|
|
|
mem = bgfx::alloc(vertexSize);
|
|
memcpy(mem->data, bc.textBuffer->getVertexBuffer(), vertexSize);
|
|
vbh = bgfx::createDynamicVertexBuffer(mem, m_vertexDecl);
|
|
|
|
bc.indexBufferHandle = ibh.idx ;
|
|
bc.vertexBufferHandle = vbh.idx;
|
|
}else
|
|
{
|
|
ibh.idx = bc.indexBufferHandle;
|
|
vbh.idx = bc.vertexBufferHandle;
|
|
|
|
mem = bgfx::alloc(indexSize);
|
|
memcpy(mem->data, bc.textBuffer->getIndexBuffer(), indexSize);
|
|
bgfx::updateDynamicIndexBuffer(ibh, mem);
|
|
|
|
mem = bgfx::alloc(vertexSize);
|
|
memcpy(mem->data, bc.textBuffer->getVertexBuffer(), vertexSize);
|
|
bgfx::updateDynamicVertexBuffer(vbh, mem);
|
|
}
|
|
bgfx::setVertexBuffer(vbh, bc.textBuffer->getVertexCount());
|
|
bgfx::setIndexBuffer(ibh, bc.textBuffer->getIndexCount());
|
|
|
|
}break;
|
|
case TRANSIENT:
|
|
{
|
|
bgfx::TransientIndexBuffer tib;
|
|
bgfx::TransientVertexBuffer tvb;
|
|
bgfx::allocTransientIndexBuffer(&tib, bc.textBuffer->getIndexCount());
|
|
bgfx::allocTransientVertexBuffer(&tvb, bc.textBuffer->getVertexCount(), m_vertexDecl);
|
|
memcpy(tib.data, bc.textBuffer->getIndexBuffer(), indexSize);
|
|
memcpy(tvb.data, bc.textBuffer->getVertexBuffer(), vertexSize);
|
|
bgfx::setVertexBuffer(&tvb, bc.textBuffer->getVertexCount());
|
|
bgfx::setIndexBuffer(&tib, bc.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.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.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.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.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.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.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.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.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.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.textBuffer->clearTextBuffer();
|
|
}
|
|
|
|
TextRectangle TextBufferManager::getRectangle(TextBufferHandle _handle) const
|
|
{
|
|
BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used");
|
|
BufferCache& bc = m_textBuffers[_handle.idx];
|
|
return bc.textBuffer->getRectangle();
|
|
}
|