FontRenderer.h revision 726aeba80ffc6778a9bc3e0ee957b8d644183505
1694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy/* 2694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * Copyright (C) 2010 The Android Open Source Project 3694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * 4694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 5694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * you may not use this file except in compliance with the License. 6694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * You may obtain a copy of the License at 7694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * 8694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * http://www.apache.org/licenses/LICENSE-2.0 9694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * 10694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * Unless required by applicable law or agreed to in writing, software 11694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * distributed under the License is distributed on an "AS IS" BASIS, 12694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * See the License for the specific language governing permissions and 14694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * limitations under the License. 15694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy */ 16694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#ifndef ANDROID_HWUI_FONT_RENDERER_H 185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#define ANDROID_HWUI_FONT_RENDERER_H 19694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 20694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <utils/String8.h> 2165ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk#include <utils/String16.h> 22694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <utils/Vector.h> 23694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <utils/KeyedVector.h> 24694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 25694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <SkScalerContext.h> 26694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <SkPaint.h> 27694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 28694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <GLES2/gl2.h> 29694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3009147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy#include "Rect.h" 3151769a68a5cb34e9564740c6a854fcb93018789dRomain Guy#include "Properties.h" 3209147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy 33694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guynamespace android { 34694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guynamespace uirenderer { 35694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 36726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 37726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Defines 38726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 39726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 40726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy#if RENDER_TEXT_AS_GLYPHS 41726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy typedef uint16_t glyph_t; 42726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_METRICS(paint, glyph) paint->getGlyphMetrics(glyph) 43726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_GLYPH(text) nextGlyph((const uint16_t**) &text) 44726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define IS_END_OF_STRING(glyph) false 45726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy#else 46726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy typedef SkUnichar glyph_t; 47726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_METRICS(paint, glyph) paint->getUnicharMetrics(glyph) 48726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_GLYPH(text) SkUTF16_NextUnichar((const uint16_t**) &text) 49726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define IS_END_OF_STRING(glyph) glyph < 0 50726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy#endif 51726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 52726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 53726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Declarations 54726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 55726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 56694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass FontRenderer; 57694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 58726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 59726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Font 60726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 61726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 6251769a68a5cb34e9564740c6a854fcb93018789dRomain Guy/** 6351769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Represents a font, defined by a Skia font id and a font size. A font is used 6451769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * to generate glyphs and cache them in the FontState. 6551769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 66694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass Font { 67694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guypublic: 68325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy enum Style { 69c7b25be64f679e78dfa79080b44be18c9974004cRomain Guy kFakeBold = 1 70325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy }; 71325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy 72694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy ~Font(); 73694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 7451769a68a5cb34e9564740c6a854fcb93018789dRomain Guy /** 7551769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Renders the specified string of text. 76f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk * If bitmap is specified, it will be used as the render target 7751769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 78726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 79726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, int x, int y, uint8_t *bitmap = NULL, 80726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy uint32_t bitmapW = 0, uint32_t bitmapH = 0); 8151769a68a5cb34e9564740c6a854fcb93018789dRomain Guy /** 8251769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Creates a new font associated with the specified font state. 8351769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 842577db1ec135a1470a2c42139772ec97a6c30e78Romain Guy static Font* create(FontRenderer* state, uint32_t fontId, float fontSize, 858668f8a633d9299091556c3b2e5ae07be8dce360Chet Haase int flags, uint32_t italicStyle, uint32_t scaleX); 86694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 87694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyprotected: 88694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy friend class FontRenderer; 89694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 90f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk enum RenderMode { 91f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk FRAMEBUFFER, 92f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk BITMAP, 93f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk MEASURE, 94f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk }; 95f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 96726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 97726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, int x, int y, RenderMode mode, uint8_t *bitmap, 98726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy uint32_t bitmapW, uint32_t bitmapH, Rect *bounds); 99f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 100726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void measure(SkPaint* paint, const char* text, uint32_t start, uint32_t len, 101726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, Rect *bounds); 102f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 103694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy struct CachedGlyphInfo { 104694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Has the cache been invalidated? 105694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mIsValid; 106694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Location of the cached glyph in the bitmap 10789a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk // in case we need to resize the texture or 10889a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk // render to bitmap 10989a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk uint32_t mStartX; 11089a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk uint32_t mStartY; 111694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mBitmapWidth; 112694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mBitmapHeight; 113694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Also cache texture coords for the quad 114694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy float mBitmapMinU; 115694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy float mBitmapMinV; 116694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy float mBitmapMaxU; 117694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy float mBitmapMaxV; 118694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Minimize how much we call freetype 119694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mGlyphIndex; 120694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mAdvanceX; 121694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mAdvanceY; 122694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Values below contain a glyph's origin in the bitmap 12389a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk int32_t mBitmapLeft; 12489a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk int32_t mBitmapTop; 1252bffd268f135df8308c9e67af110525a5c463424Romain Guy // Auto-kerning 1262bffd268f135df8308c9e67af110525a5c463424Romain Guy SkFixed mLsbDelta; 1272bffd268f135df8308c9e67af110525a5c463424Romain Guy SkFixed mRsbDelta; 128694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy }; 129694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1308668f8a633d9299091556c3b2e5ae07be8dce360Chet Haase Font(FontRenderer* state, uint32_t fontId, float fontSize, int flags, uint32_t italicStyle, 1318668f8a633d9299091556c3b2e5ae07be8dce360Chet Haase uint32_t scaleX); 132694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 133726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy // Cache of glyphs 134726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy DefaultKeyedVector<glyph_t, CachedGlyphInfo*> mCachedGlyphs; 135694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 136bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy void invalidateTextureCache(); 137bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 138726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy CachedGlyphInfo* cacheGlyph(SkPaint* paint, glyph_t glyph); 139694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void updateGlyphCache(SkPaint* paint, const SkGlyph& skiaGlyph, CachedGlyphInfo *glyph); 140f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk void measureCachedGlyph(CachedGlyphInfo *glyph, int x, int y, Rect *bounds); 141694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void drawCachedGlyph(CachedGlyphInfo *glyph, int x, int y); 14289a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void drawCachedGlyph(CachedGlyphInfo *glyph, int x, int y, 143726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH); 144bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 145726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy CachedGlyphInfo* getCachedGlyph(SkPaint* paint, glyph_t textUnit); 146726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 147726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy static glyph_t nextGlyph(const uint16_t** srcPtr) { 148726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy const uint16_t* src = *srcPtr; 149726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy glyph_t g = *src++; 150726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy *srcPtr = src; 151726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy return g; 152726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy } 15365ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk 154bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy FontRenderer* mState; 155bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy uint32_t mFontId; 156bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy float mFontSize; 157325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy int mFlags; 1582577db1ec135a1470a2c42139772ec97a6c30e78Romain Guy uint32_t mItalicStyle; 1598668f8a633d9299091556c3b2e5ae07be8dce360Chet Haase uint32_t mScaleX; 160694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; 161694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 162726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 163726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Renderer 164726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 165726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 166694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass FontRenderer { 167694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guypublic: 168694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy FontRenderer(); 169694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy ~FontRenderer(); 170694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 171694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void init(); 172694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void deinit(); 173694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 174b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy void setGammaTable(const uint8_t* gammaTable) { 175b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mGammaTable = gammaTable; 176b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy } 177b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy 178894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk void setAttributeBindingSlots(int positionSlot, int texCoordSlot) { 179894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk mPositionAttrSlot = positionSlot; 180894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk mTexcoordAttrSlot = texCoordSlot; 181894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk } 182894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk 18365ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk void setFont(SkPaint* paint, uint32_t fontId, float fontSize); 1845b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool renderText(SkPaint* paint, const Rect* clip, const char *text, uint32_t startIndex, 1855b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy uint32_t len, int numGlyphs, int x, int y, Rect* bounds); 186694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 187f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk struct DropShadow { 1881e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy DropShadow() { }; 1891e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 1901e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy DropShadow(const DropShadow& dropShadow): 1911e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy width(dropShadow.width), height(dropShadow.height), 1921e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy image(dropShadow.image), penX(dropShadow.penX), 1931e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy penY(dropShadow.penY) { 1941e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 1951e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 196f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint32_t width; 197f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint32_t height; 198f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint8_t* image; 199f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk int32_t penX; 200f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk int32_t penY; 201f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk }; 202f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 203f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk // After renderDropShadow returns, the called owns the memory in DropShadow.image 204f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk // and is responsible for releasing it when it's done with it 205f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk DropShadow renderDropShadow(SkPaint* paint, const char *text, uint32_t startIndex, 2061e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy uint32_t len, int numGlyphs, uint32_t radius); 207f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 208e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy GLuint getTexture(bool linearFiltering = false) { 209694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy checkInit(); 210e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy if (linearFiltering != mLinearFiltering) { 211e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy mLinearFiltering = linearFiltering; 212e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy const GLenum filtering = linearFiltering ? GL_LINEAR : GL_NEAREST; 213e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy 214e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy glBindTexture(GL_TEXTURE_2D, mTextureId); 215e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filtering); 216e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filtering); 217e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy } 218694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy return mTextureId; 219694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy } 220694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 221c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy uint32_t getCacheWidth() const { 222c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy return mCacheWidth; 223c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 224c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 225c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy uint32_t getCacheHeight() const { 226c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy return mCacheHeight; 227c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 228c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 229694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyprotected: 230694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy friend class Font; 231694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 232b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy const uint8_t* mGammaTable; 233b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy 234694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy struct CacheTextureLine { 235694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint16_t mMaxHeight; 236694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint16_t mMaxWidth; 237694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mCurrentRow; 238694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mCurrentCol; 2391e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy bool mDirty; 240694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 24151769a68a5cb34e9564740c6a854fcb93018789dRomain Guy CacheTextureLine(uint16_t maxWidth, uint16_t maxHeight, uint32_t currentRow, 242694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t currentCol): 24351769a68a5cb34e9564740c6a854fcb93018789dRomain Guy mMaxHeight(maxHeight), 24451769a68a5cb34e9564740c6a854fcb93018789dRomain Guy mMaxWidth(maxWidth), 24551769a68a5cb34e9564740c6a854fcb93018789dRomain Guy mCurrentRow(currentRow), 2469b9902ddbb01548f4a0199087b7035e7c10b2ae7Alex Sakhartchouk mCurrentCol(currentCol), 2479b9902ddbb01548f4a0199087b7035e7c10b2ae7Alex Sakhartchouk mDirty(false) { 248694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy } 249694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 250694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool fitBitmap(const SkGlyph& glyph, uint32_t *retOriginX, uint32_t *retOriginY) { 2517975fb6d12cb1eb96b75e3a563627cd4c4081bd6Romain Guy if (glyph.fHeight + 2 > mMaxHeight) { 252694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy return false; 253694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy } 254694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 2557975fb6d12cb1eb96b75e3a563627cd4c4081bd6Romain Guy if (mCurrentCol + glyph.fWidth + 2 < mMaxWidth) { 2567975fb6d12cb1eb96b75e3a563627cd4c4081bd6Romain Guy *retOriginX = mCurrentCol + 1; 2577975fb6d12cb1eb96b75e3a563627cd4c4081bd6Romain Guy *retOriginY = mCurrentRow + 1; 2587975fb6d12cb1eb96b75e3a563627cd4c4081bd6Romain Guy mCurrentCol += glyph.fWidth + 2; 2599b9902ddbb01548f4a0199087b7035e7c10b2ae7Alex Sakhartchouk mDirty = true; 260694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy return true; 261694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy } 262694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 263694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy return false; 264694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy } 265694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy }; 266694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 26744984ea0cb3702384d023b5f211deda3c4b0b656Chet Haase void initTextTexture(bool largeFonts = false); 268694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool cacheBitmap(const SkGlyph& glyph, uint32_t *retOriginX, uint32_t *retOriginY); 269694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 270694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void flushAllAndInvalidate(); 271694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void initVertexArrayBuffers(); 272694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 273694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void checkInit(); 274694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 27565ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk String16 mLatinPrecache; 27665ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk void precacheLatin(SkPaint* paint); 27765ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk 278694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void issueDrawCommand(); 279694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void appendMeshQuad(float x1, float y1, float z1, float u1, float v1, float x2, float y2, 280694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy float z2, float u2, float v2, float x3, float y3, float z3, float u3, float v3, 281694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy float x4, float y4, float z4, float u4, float v4); 282694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 283694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mCacheWidth; 284694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mCacheHeight; 285694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 286694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy Vector<CacheTextureLine*> mCacheLines; 28765ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk uint32_t getRemainingCacheCapacity(); 288694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 28909147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy Font* mCurrentFont; 290694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy Vector<Font*> mActiveFonts; 291694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 292694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Texture to cache glyph bitmaps 29389a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk uint8_t* mTextTexture; 29489a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk const uint8_t* getTextTextureData() const { 29589a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk return mTextTexture; 29689a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk } 297694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy GLuint mTextureId; 2989b9902ddbb01548f4a0199087b7035e7c10b2ae7Alex Sakhartchouk void checkTextureUpdate(); 299694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mUploadTexture; 300694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 301694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Pointer to vertex data to speed up frame to frame work 302694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy float *mTextMeshPtr; 303694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mCurrentQuadIndex; 304694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mMaxNumberOfQuads; 305694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 306694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mIndexBufferID; 307694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 308894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk int32_t mPositionAttrSlot; 309894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk int32_t mTexcoordAttrSlot; 310894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk 31109147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect* mClip; 3125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect* mBounds; 3135b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool mDrawn; 31409147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy 315694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mInitialized; 31689a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk 317e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy bool mLinearFiltering; 318e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy 31989a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void computeGaussianWeights(float* weights, int32_t radius); 32089a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void horizontalBlur(float* weights, int32_t radius, const uint8_t *source, uint8_t *dest, 3211e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy int32_t width, int32_t height); 32289a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void verticalBlur(float* weights, int32_t radius, const uint8_t *source, uint8_t *dest, 3231e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy int32_t width, int32_t height); 32489a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void blurImage(uint8_t* image, int32_t width, int32_t height, int32_t radius); 325694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; 326694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 327694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace uirenderer 328694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace android 329694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif // ANDROID_HWUI_FONT_RENDERER_H 331