Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright (C) 2009 The Android Open Source Project |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | #ifndef ANDROID_RS_BUILD_FOR_HOST |
| 19 | #include "rsContext.h" |
| 20 | #else |
| 21 | #include "rsContextHostStub.h" |
| 22 | #endif |
| 23 | |
| 24 | #include "rsFont.h" |
| 25 | #include "rsProgramFragment.h" |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 26 | #include <cutils/properties.h> |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 27 | #include FT_BITMAP_H |
| 28 | |
| 29 | #include <GLES/gl.h> |
| 30 | #include <GLES/glext.h> |
| 31 | #include <GLES2/gl2.h> |
| 32 | #include <GLES2/gl2ext.h> |
| 33 | |
| 34 | using namespace android; |
| 35 | using namespace android::renderscript; |
| 36 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 37 | Font::Font(Context *rsc) : ObjectBase(rsc), mCachedGlyphs(NULL) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 38 | mInitialized = false; |
| 39 | mHasKerning = false; |
Alex Sakhartchouk | 3659d94 | 2010-06-30 16:53:43 -0700 | [diff] [blame] | 40 | mFace = NULL; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 41 | } |
| 42 | |
Alex Sakhartchouk | c17ace2 | 2010-12-17 11:41:08 -0800 | [diff] [blame^] | 43 | bool Font::init(const char *name, float fontSize, uint32_t dpi) { |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 44 | if (mInitialized) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 45 | LOGE("Reinitialization of fonts not supported"); |
| 46 | return false; |
| 47 | } |
| 48 | |
Alex Sakhartchouk | c17ace2 | 2010-12-17 11:41:08 -0800 | [diff] [blame^] | 49 | FT_Error error = FT_New_Face(mRSC->mStateFont.getLib(), name, 0, &mFace); |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 50 | if (error) { |
Alex Sakhartchouk | c17ace2 | 2010-12-17 11:41:08 -0800 | [diff] [blame^] | 51 | LOGE("Unable to initialize font %s", name); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 52 | return false; |
| 53 | } |
| 54 | |
| 55 | mFontName = name; |
| 56 | mFontSize = fontSize; |
| 57 | mDpi = dpi; |
| 58 | |
Alex Sakhartchouk | c17ace2 | 2010-12-17 11:41:08 -0800 | [diff] [blame^] | 59 | error = FT_Set_Char_Size(mFace, (FT_F26Dot6)(fontSize * 64.0f), 0, dpi, 0); |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 60 | if (error) { |
Alex Sakhartchouk | c17ace2 | 2010-12-17 11:41:08 -0800 | [diff] [blame^] | 61 | LOGE("Unable to set font size on %s", name); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 62 | return false; |
| 63 | } |
| 64 | |
| 65 | mHasKerning = FT_HAS_KERNING(mFace); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 66 | |
| 67 | mInitialized = true; |
| 68 | return true; |
| 69 | } |
| 70 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 71 | void Font::invalidateTextureCache() { |
| 72 | for (uint32_t i = 0; i < mCachedGlyphs.size(); i ++) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 73 | mCachedGlyphs.valueAt(i)->mIsValid = false; |
| 74 | } |
| 75 | } |
| 76 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 77 | void Font::drawCachedGlyph(CachedGlyphInfo *glyph, int32_t x, int32_t y) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 78 | FontState *state = &mRSC->mStateFont; |
| 79 | |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 80 | int32_t nPenX = x + glyph->mBitmapLeft; |
| 81 | int32_t nPenY = y - glyph->mBitmapTop + glyph->mBitmapHeight; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 82 | |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 83 | float u1 = glyph->mBitmapMinU; |
| 84 | float u2 = glyph->mBitmapMaxU; |
| 85 | float v1 = glyph->mBitmapMinV; |
| 86 | float v2 = glyph->mBitmapMaxV; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 87 | |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 88 | int32_t width = (int32_t) glyph->mBitmapWidth; |
| 89 | int32_t height = (int32_t) glyph->mBitmapHeight; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 90 | |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 91 | state->appendMeshQuad(nPenX, nPenY, 0, u1, v2, |
| 92 | nPenX + width, nPenY, 0, u2, v2, |
| 93 | nPenX + width, nPenY - height, 0, u2, v1, |
| 94 | nPenX, nPenY - height, 0, u1, v1); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 95 | } |
| 96 | |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 97 | void Font::drawCachedGlyph(CachedGlyphInfo* glyph, int32_t x, int32_t y, |
| 98 | uint8_t* bitmap, uint32_t bitmapW, uint32_t bitmapH) { |
| 99 | int32_t nPenX = x + glyph->mBitmapLeft; |
| 100 | int32_t nPenY = y + glyph->mBitmapTop; |
| 101 | |
| 102 | uint32_t endX = glyph->mBitmapMinX + glyph->mBitmapWidth; |
| 103 | uint32_t endY = glyph->mBitmapMinY + glyph->mBitmapHeight; |
| 104 | |
| 105 | FontState *state = &mRSC->mStateFont; |
| 106 | uint32_t cacheWidth = state->getCacheTextureType()->getDimX(); |
| 107 | const uint8_t* cacheBuffer = state->getTextTextureData(); |
| 108 | |
| 109 | uint32_t cacheX = 0, cacheY = 0; |
| 110 | int32_t bX = 0, bY = 0; |
| 111 | for (cacheX = glyph->mBitmapMinX, bX = nPenX; cacheX < endX; cacheX++, bX++) { |
| 112 | for (cacheY = glyph->mBitmapMinY, bY = nPenY; cacheY < endY; cacheY++, bY++) { |
| 113 | if (bX < 0 || bY < 0 || bX >= (int32_t) bitmapW || bY >= (int32_t) bitmapH) { |
| 114 | LOGE("Skipping invalid index"); |
| 115 | continue; |
| 116 | } |
| 117 | uint8_t tempCol = cacheBuffer[cacheY * cacheWidth + cacheX]; |
| 118 | bitmap[bY * bitmapW + bX] = tempCol; |
| 119 | } |
| 120 | } |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | void Font::measureCachedGlyph(CachedGlyphInfo *glyph, int32_t x, int32_t y, Rect *bounds) { |
| 124 | int32_t nPenX = x + glyph->mBitmapLeft; |
| 125 | int32_t nPenY = y - glyph->mBitmapTop + glyph->mBitmapHeight; |
| 126 | |
| 127 | int32_t width = (int32_t) glyph->mBitmapWidth; |
| 128 | int32_t height = (int32_t) glyph->mBitmapHeight; |
| 129 | |
| 130 | if (bounds->bottom > nPenY) { |
| 131 | bounds->bottom = nPenY; |
| 132 | } |
| 133 | if (bounds->left > nPenX) { |
| 134 | bounds->left = nPenX; |
| 135 | } |
| 136 | if (bounds->right < nPenX + width) { |
| 137 | bounds->right = nPenX + width; |
| 138 | } |
| 139 | if (bounds->top < nPenY + height) { |
| 140 | bounds->top = nPenY + height; |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | void Font::renderUTF(const char *text, uint32_t len, int32_t x, int32_t y, |
| 145 | uint32_t start, int32_t numGlyphs, |
| 146 | RenderMode mode, Rect *bounds, |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 147 | uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH) { |
| 148 | if (!mInitialized || numGlyphs == 0 || text == NULL || len == 0) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 149 | return; |
| 150 | } |
| 151 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 152 | if (mode == Font::MEASURE) { |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 153 | if (bounds == NULL) { |
| 154 | LOGE("No return rectangle provided to measure text"); |
| 155 | return; |
| 156 | } |
| 157 | // Reset min and max of the bounding box to something large |
| 158 | bounds->set(1e6, -1e6, -1e6, 1e6); |
| 159 | } |
| 160 | |
| 161 | int32_t penX = x, penY = y; |
| 162 | int32_t glyphsLeft = 1; |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 163 | if (numGlyphs > 0) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 164 | glyphsLeft = numGlyphs; |
| 165 | } |
| 166 | |
| 167 | size_t index = start; |
| 168 | size_t nextIndex = 0; |
| 169 | |
| 170 | while (glyphsLeft > 0) { |
| 171 | |
Kenny Root | c9c38dd | 2010-11-09 14:37:23 -0800 | [diff] [blame] | 172 | int32_t utfChar = utf32_from_utf8_at(text, len, index, &nextIndex); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 173 | |
| 174 | // Reached the end of the string or encountered |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 175 | if (utfChar < 0) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 176 | break; |
| 177 | } |
| 178 | |
| 179 | // Move to the next character in the array |
| 180 | index = nextIndex; |
| 181 | |
Alex Sakhartchouk | 01bcef6 | 2010-08-17 11:09:49 -0700 | [diff] [blame] | 182 | CachedGlyphInfo *cachedGlyph = getCachedUTFChar(utfChar); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 183 | |
| 184 | // If it's still not valid, we couldn't cache it, so we shouldn't draw garbage |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 185 | if (cachedGlyph->mIsValid) { |
| 186 | switch (mode) { |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 187 | case FRAMEBUFFER: |
| 188 | drawCachedGlyph(cachedGlyph, penX, penY); |
| 189 | break; |
| 190 | case BITMAP: |
| 191 | drawCachedGlyph(cachedGlyph, penX, penY, bitmap, bitmapW, bitmapH); |
| 192 | break; |
| 193 | case MEASURE: |
| 194 | measureCachedGlyph(cachedGlyph, penX, penY, bounds); |
| 195 | break; |
| 196 | } |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 197 | } |
| 198 | |
| 199 | penX += (cachedGlyph->mAdvance.x >> 6); |
| 200 | |
| 201 | // If we were given a specific number of glyphs, decrement |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 202 | if (numGlyphs > 0) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 203 | glyphsLeft --; |
| 204 | } |
| 205 | } |
| 206 | } |
| 207 | |
Alex Sakhartchouk | 01bcef6 | 2010-08-17 11:09:49 -0700 | [diff] [blame] | 208 | Font::CachedGlyphInfo* Font::getCachedUTFChar(int32_t utfChar) { |
| 209 | |
| 210 | CachedGlyphInfo *cachedGlyph = mCachedGlyphs.valueFor((uint32_t)utfChar); |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 211 | if (cachedGlyph == NULL) { |
Alex Sakhartchouk | 01bcef6 | 2010-08-17 11:09:49 -0700 | [diff] [blame] | 212 | cachedGlyph = cacheGlyph((uint32_t)utfChar); |
| 213 | } |
| 214 | // Is the glyph still in texture cache? |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 215 | if (!cachedGlyph->mIsValid) { |
Alex Sakhartchouk | 01bcef6 | 2010-08-17 11:09:49 -0700 | [diff] [blame] | 216 | updateGlyphCache(cachedGlyph); |
| 217 | } |
| 218 | |
| 219 | return cachedGlyph; |
| 220 | } |
| 221 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 222 | void Font::updateGlyphCache(CachedGlyphInfo *glyph) { |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 223 | FT_Error error = FT_Load_Glyph( mFace, glyph->mGlyphIndex, FT_LOAD_RENDER ); |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 224 | if (error) { |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 225 | LOGE("Couldn't load glyph."); |
| 226 | return; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 227 | } |
| 228 | |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 229 | glyph->mAdvance = mFace->glyph->advance; |
| 230 | glyph->mBitmapLeft = mFace->glyph->bitmap_left; |
| 231 | glyph->mBitmapTop = mFace->glyph->bitmap_top; |
| 232 | |
| 233 | FT_Bitmap *bitmap = &mFace->glyph->bitmap; |
| 234 | |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 235 | // Now copy the bitmap into the cache texture |
| 236 | uint32_t startX = 0; |
| 237 | uint32_t startY = 0; |
| 238 | |
| 239 | // Let the font state figure out where to put the bitmap |
| 240 | FontState *state = &mRSC->mStateFont; |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 241 | glyph->mIsValid = state->cacheBitmap(bitmap, &startX, &startY); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 242 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 243 | if (!glyph->mIsValid) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 244 | return; |
| 245 | } |
| 246 | |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 247 | uint32_t endX = startX + bitmap->width; |
| 248 | uint32_t endY = startY + bitmap->rows; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 249 | |
| 250 | glyph->mBitmapMinX = startX; |
| 251 | glyph->mBitmapMinY = startY; |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 252 | glyph->mBitmapWidth = bitmap->width; |
| 253 | glyph->mBitmapHeight = bitmap->rows; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 254 | |
| 255 | uint32_t cacheWidth = state->getCacheTextureType()->getDimX(); |
| 256 | uint32_t cacheHeight = state->getCacheTextureType()->getDimY(); |
| 257 | |
| 258 | glyph->mBitmapMinU = (float)startX / (float)cacheWidth; |
| 259 | glyph->mBitmapMinV = (float)startY / (float)cacheHeight; |
| 260 | glyph->mBitmapMaxU = (float)endX / (float)cacheWidth; |
| 261 | glyph->mBitmapMaxV = (float)endY / (float)cacheHeight; |
| 262 | } |
| 263 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 264 | Font::CachedGlyphInfo *Font::cacheGlyph(uint32_t glyph) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 265 | CachedGlyphInfo *newGlyph = new CachedGlyphInfo(); |
| 266 | mCachedGlyphs.add(glyph, newGlyph); |
| 267 | |
| 268 | newGlyph->mGlyphIndex = FT_Get_Char_Index(mFace, glyph); |
| 269 | newGlyph->mIsValid = false; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 270 | |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 271 | updateGlyphCache(newGlyph); |
| 272 | |
| 273 | return newGlyph; |
| 274 | } |
| 275 | |
Alex Sakhartchouk | c17ace2 | 2010-12-17 11:41:08 -0800 | [diff] [blame^] | 276 | Font * Font::create(Context *rsc, const char *name, float fontSize, uint32_t dpi) { |
Alex Sakhartchouk | 35b9644 | 2010-08-18 15:46:43 -0700 | [diff] [blame] | 277 | rsc->mStateFont.checkInit(); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 278 | Vector<Font*> &activeFonts = rsc->mStateFont.mActiveFonts; |
| 279 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 280 | for (uint32_t i = 0; i < activeFonts.size(); i ++) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 281 | Font *ithFont = activeFonts[i]; |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 282 | if (ithFont->mFontName == name && ithFont->mFontSize == fontSize && ithFont->mDpi == dpi) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 283 | return ithFont; |
| 284 | } |
| 285 | } |
| 286 | |
| 287 | Font *newFont = new Font(rsc); |
| 288 | bool isInitialized = newFont->init(name, fontSize, dpi); |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 289 | if (isInitialized) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 290 | activeFonts.push(newFont); |
Alex Sakhartchouk | 01bcef6 | 2010-08-17 11:09:49 -0700 | [diff] [blame] | 291 | rsc->mStateFont.precacheLatin(newFont); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 292 | return newFont; |
| 293 | } |
| 294 | |
Jason Sams | 225afd3 | 2010-10-21 14:06:55 -0700 | [diff] [blame] | 295 | ObjectBase::checkDelete(newFont); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 296 | return NULL; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 297 | } |
| 298 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 299 | Font::~Font() { |
| 300 | if (mFace) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 301 | FT_Done_Face(mFace); |
| 302 | } |
| 303 | |
| 304 | for (uint32_t ct = 0; ct < mRSC->mStateFont.mActiveFonts.size(); ct++) { |
| 305 | if (mRSC->mStateFont.mActiveFonts[ct] == this) { |
| 306 | mRSC->mStateFont.mActiveFonts.removeAt(ct); |
| 307 | break; |
| 308 | } |
| 309 | } |
| 310 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 311 | for (uint32_t i = 0; i < mCachedGlyphs.size(); i ++) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 312 | CachedGlyphInfo *glyph = mCachedGlyphs.valueAt(i); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 313 | delete glyph; |
| 314 | } |
| 315 | } |
| 316 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 317 | FontState::FontState() { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 318 | mInitialized = false; |
| 319 | mMaxNumberOfQuads = 1024; |
| 320 | mCurrentQuadIndex = 0; |
| 321 | mRSC = NULL; |
Alex Sakhartchouk | 3659d94 | 2010-06-30 16:53:43 -0700 | [diff] [blame] | 322 | mLibrary = NULL; |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 323 | |
| 324 | // Get the renderer properties |
| 325 | char property[PROPERTY_VALUE_MAX]; |
| 326 | |
| 327 | // Get the gamma |
| 328 | float gamma = DEFAULT_TEXT_GAMMA; |
| 329 | if (property_get(PROPERTY_TEXT_GAMMA, property, NULL) > 0) { |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 330 | gamma = atof(property); |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 331 | } |
| 332 | |
| 333 | // Get the black gamma threshold |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 334 | int32_t blackThreshold = DEFAULT_TEXT_BLACK_GAMMA_THRESHOLD; |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 335 | if (property_get(PROPERTY_TEXT_BLACK_GAMMA_THRESHOLD, property, NULL) > 0) { |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 336 | blackThreshold = atoi(property); |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 337 | } |
| 338 | mBlackThreshold = (float)(blackThreshold) / 255.0f; |
| 339 | |
| 340 | // Get the white gamma threshold |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 341 | int32_t whiteThreshold = DEFAULT_TEXT_WHITE_GAMMA_THRESHOLD; |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 342 | if (property_get(PROPERTY_TEXT_WHITE_GAMMA_THRESHOLD, property, NULL) > 0) { |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 343 | whiteThreshold = atoi(property); |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 344 | } |
| 345 | mWhiteThreshold = (float)(whiteThreshold) / 255.0f; |
| 346 | |
| 347 | // Compute the gamma tables |
| 348 | mBlackGamma = gamma; |
| 349 | mWhiteGamma = 1.0f / gamma; |
Alex Sakhartchouk | 4f230b3 | 2010-10-12 14:15:17 -0700 | [diff] [blame] | 350 | |
| 351 | setFontColor(0.1f, 0.1f, 0.1f, 1.0f); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 352 | } |
| 353 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 354 | FontState::~FontState() { |
| 355 | for (uint32_t i = 0; i < mCacheLines.size(); i ++) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 356 | delete mCacheLines[i]; |
| 357 | } |
| 358 | |
| 359 | rsAssert(!mActiveFonts.size()); |
| 360 | } |
| 361 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 362 | FT_Library FontState::getLib() { |
| 363 | if (!mLibrary) { |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 364 | FT_Error error = FT_Init_FreeType(&mLibrary); |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 365 | if (error) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 366 | LOGE("Unable to initialize freetype"); |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 367 | return NULL; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 368 | } |
| 369 | } |
Alex Sakhartchouk | 3659d94 | 2010-06-30 16:53:43 -0700 | [diff] [blame] | 370 | |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 371 | return mLibrary; |
| 372 | } |
| 373 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 374 | void FontState::init(Context *rsc) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 375 | mRSC = rsc; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 376 | } |
| 377 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 378 | void FontState::flushAllAndInvalidate() { |
| 379 | if (mCurrentQuadIndex != 0) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 380 | issueDrawCommand(); |
| 381 | mCurrentQuadIndex = 0; |
| 382 | } |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 383 | for (uint32_t i = 0; i < mActiveFonts.size(); i ++) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 384 | mActiveFonts[i]->invalidateTextureCache(); |
| 385 | } |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 386 | for (uint32_t i = 0; i < mCacheLines.size(); i ++) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 387 | mCacheLines[i]->mCurrentCol = 0; |
| 388 | } |
| 389 | } |
| 390 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 391 | bool FontState::cacheBitmap(FT_Bitmap *bitmap, uint32_t *retOriginX, uint32_t *retOriginY) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 392 | // If the glyph is too tall, don't cache it |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 393 | if ((uint32_t)bitmap->rows > mCacheLines[mCacheLines.size()-1]->mMaxHeight) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 394 | LOGE("Font size to large to fit in cache. width, height = %i, %i", (int)bitmap->width, (int)bitmap->rows); |
| 395 | return false; |
| 396 | } |
| 397 | |
| 398 | // Now copy the bitmap into the cache texture |
| 399 | uint32_t startX = 0; |
| 400 | uint32_t startY = 0; |
| 401 | |
| 402 | bool bitmapFit = false; |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 403 | for (uint32_t i = 0; i < mCacheLines.size(); i ++) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 404 | bitmapFit = mCacheLines[i]->fitBitmap(bitmap, &startX, &startY); |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 405 | if (bitmapFit) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 406 | break; |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | // If the new glyph didn't fit, flush the state so far and invalidate everything |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 411 | if (!bitmapFit) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 412 | flushAllAndInvalidate(); |
| 413 | |
| 414 | // Try to fit it again |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 415 | for (uint32_t i = 0; i < mCacheLines.size(); i ++) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 416 | bitmapFit = mCacheLines[i]->fitBitmap(bitmap, &startX, &startY); |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 417 | if (bitmapFit) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 418 | break; |
| 419 | } |
| 420 | } |
| 421 | |
| 422 | // if we still don't fit, something is wrong and we shouldn't draw |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 423 | if (!bitmapFit) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 424 | LOGE("Bitmap doesn't fit in cache. width, height = %i, %i", (int)bitmap->width, (int)bitmap->rows); |
| 425 | return false; |
| 426 | } |
| 427 | } |
| 428 | |
| 429 | *retOriginX = startX; |
| 430 | *retOriginY = startY; |
| 431 | |
| 432 | uint32_t endX = startX + bitmap->width; |
| 433 | uint32_t endY = startY + bitmap->rows; |
| 434 | |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 435 | uint32_t cacheWidth = getCacheTextureType()->getDimX(); |
| 436 | |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 437 | uint8_t *cacheBuffer = (uint8_t*)mTextTexture->getPtr(); |
| 438 | uint8_t *bitmapBuffer = bitmap->buffer; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 439 | |
| 440 | uint32_t cacheX = 0, bX = 0, cacheY = 0, bY = 0; |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 441 | for (cacheX = startX, bX = 0; cacheX < endX; cacheX ++, bX ++) { |
| 442 | for (cacheY = startY, bY = 0; cacheY < endY; cacheY ++, bY ++) { |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 443 | uint8_t tempCol = bitmapBuffer[bY * bitmap->width + bX]; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 444 | cacheBuffer[cacheY*cacheWidth + cacheX] = tempCol; |
| 445 | } |
| 446 | } |
| 447 | |
| 448 | // This will dirty the texture and the shader so next time |
| 449 | // we draw it will upload the data |
Jason Sams | b7e83bd | 2010-12-15 01:41:00 -0800 | [diff] [blame] | 450 | mTextTexture->syncAll(mRSC, RS_ALLOCATION_USAGE_SCRIPT); |
Alex Sakhartchouk | 383e5b1 | 2010-09-23 16:16:33 -0700 | [diff] [blame] | 451 | mFontShaderF->bindTexture(mRSC, 0, mTextTexture.get()); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 452 | |
| 453 | // Some debug code |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 454 | /*for (uint32_t i = 0; i < mCacheLines.size(); i ++) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 455 | LOGE("Cache Line: H: %u Empty Space: %f", |
| 456 | mCacheLines[i]->mMaxHeight, |
| 457 | (1.0f - (float)mCacheLines[i]->mCurrentCol/(float)mCacheLines[i]->mMaxWidth)*100.0f); |
| 458 | |
| 459 | }*/ |
| 460 | |
| 461 | return true; |
| 462 | } |
| 463 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 464 | void FontState::initRenderState() { |
Alex Sakhartchouk | 7ffcaf2 | 2010-10-06 11:15:01 -0700 | [diff] [blame] | 465 | String8 shaderString("varying vec2 varTex0;\n"); |
Alex Sakhartchouk | e7ae69f | 2010-09-14 09:50:43 -0700 | [diff] [blame] | 466 | shaderString.append("void main() {\n"); |
| 467 | shaderString.append(" lowp vec4 col = UNI_Color;\n"); |
| 468 | shaderString.append(" col.a = texture2D(UNI_Tex0, varTex0.xy).a;\n"); |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 469 | shaderString.append(" col.a = pow(col.a, UNI_Gamma);\n"); |
Alex Sakhartchouk | e7ae69f | 2010-09-14 09:50:43 -0700 | [diff] [blame] | 470 | shaderString.append(" gl_FragColor = col;\n"); |
| 471 | shaderString.append("}\n"); |
| 472 | |
| 473 | const Element *colorElem = Element::create(mRSC, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 4); |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 474 | const Element *gammaElem = Element::create(mRSC, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 1); |
Alex Sakhartchouk | e7ae69f | 2010-09-14 09:50:43 -0700 | [diff] [blame] | 475 | mRSC->mStateElement.elementBuilderBegin(); |
| 476 | mRSC->mStateElement.elementBuilderAdd(colorElem, "Color", 1); |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 477 | mRSC->mStateElement.elementBuilderAdd(gammaElem, "Gamma", 1); |
Alex Sakhartchouk | e7ae69f | 2010-09-14 09:50:43 -0700 | [diff] [blame] | 478 | const Element *constInput = mRSC->mStateElement.elementBuilderCreate(mRSC); |
| 479 | |
Jason Sams | f0c1df4 | 2010-10-26 13:09:17 -0700 | [diff] [blame] | 480 | Type *inputType = Type::getType(mRSC, constInput, 1, 0, 0, false, false); |
Alex Sakhartchouk | e7ae69f | 2010-09-14 09:50:43 -0700 | [diff] [blame] | 481 | |
| 482 | uint32_t tmp[4]; |
| 483 | tmp[0] = RS_PROGRAM_PARAM_CONSTANT; |
| 484 | tmp[1] = (uint32_t)inputType; |
Alex Sakhartchouk | 84e4027 | 2010-11-18 15:22:43 -0800 | [diff] [blame] | 485 | tmp[2] = RS_PROGRAM_PARAM_TEXTURE_TYPE; |
| 486 | tmp[3] = RS_TEXTURE_2D; |
Alex Sakhartchouk | e7ae69f | 2010-09-14 09:50:43 -0700 | [diff] [blame] | 487 | |
Jason Sams | 366c9c8 | 2010-12-08 16:14:36 -0800 | [diff] [blame] | 488 | mFontShaderFConstant.set(new Allocation(mRSC, inputType, |
| 489 | RS_ALLOCATION_USAGE_SCRIPT | RS_ALLOCATION_USAGE_GRAPHICS_CONSTANTS)); |
Alex Sakhartchouk | e7ae69f | 2010-09-14 09:50:43 -0700 | [diff] [blame] | 490 | ProgramFragment *pf = new ProgramFragment(mRSC, shaderString.string(), |
| 491 | shaderString.length(), tmp, 4); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 492 | mFontShaderF.set(pf); |
Alex Sakhartchouk | 383e5b1 | 2010-09-23 16:16:33 -0700 | [diff] [blame] | 493 | mFontShaderF->bindAllocation(mRSC, mFontShaderFConstant.get(), 0); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 494 | |
| 495 | Sampler *sampler = new Sampler(mRSC, RS_SAMPLER_NEAREST, RS_SAMPLER_NEAREST, |
| 496 | RS_SAMPLER_CLAMP, RS_SAMPLER_CLAMP, RS_SAMPLER_CLAMP); |
| 497 | mFontSampler.set(sampler); |
Alex Sakhartchouk | 383e5b1 | 2010-09-23 16:16:33 -0700 | [diff] [blame] | 498 | mFontShaderF->bindSampler(mRSC, 0, sampler); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 499 | |
| 500 | ProgramStore *fontStore = new ProgramStore(mRSC); |
| 501 | mFontProgramStore.set(fontStore); |
| 502 | mFontProgramStore->setDepthFunc(RS_DEPTH_FUNC_ALWAYS); |
| 503 | mFontProgramStore->setBlendFunc(RS_BLEND_SRC_SRC_ALPHA, RS_BLEND_DST_ONE_MINUS_SRC_ALPHA); |
| 504 | mFontProgramStore->setDitherEnable(false); |
| 505 | mFontProgramStore->setDepthMask(false); |
| 506 | } |
| 507 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 508 | void FontState::initTextTexture() { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 509 | const Element *alphaElem = Element::create(mRSC, RS_TYPE_UNSIGNED_8, RS_KIND_PIXEL_A, true, 1); |
| 510 | |
| 511 | // We will allocate a texture to initially hold 32 character bitmaps |
Jason Sams | f0c1df4 | 2010-10-26 13:09:17 -0700 | [diff] [blame] | 512 | Type *texType = Type::getType(mRSC, alphaElem, 1024, 256, 0, false, false); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 513 | |
Jason Sams | 366c9c8 | 2010-12-08 16:14:36 -0800 | [diff] [blame] | 514 | Allocation *cacheAlloc = new Allocation(mRSC, texType, RS_ALLOCATION_USAGE_SCRIPT | RS_ALLOCATION_USAGE_GRAPHICS_TEXTURE); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 515 | mTextTexture.set(cacheAlloc); |
Jason Sams | b7e83bd | 2010-12-15 01:41:00 -0800 | [diff] [blame] | 516 | mTextTexture->syncAll(mRSC, RS_ALLOCATION_USAGE_SCRIPT); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 517 | |
| 518 | // Split up our cache texture into lines of certain widths |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 519 | int32_t nextLine = 0; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 520 | mCacheLines.push(new CacheTextureLine(16, texType->getDimX(), nextLine, 0)); |
| 521 | nextLine += mCacheLines.top()->mMaxHeight; |
| 522 | mCacheLines.push(new CacheTextureLine(24, texType->getDimX(), nextLine, 0)); |
| 523 | nextLine += mCacheLines.top()->mMaxHeight; |
Alex Sakhartchouk | 01bcef6 | 2010-08-17 11:09:49 -0700 | [diff] [blame] | 524 | mCacheLines.push(new CacheTextureLine(24, texType->getDimX(), nextLine, 0)); |
| 525 | nextLine += mCacheLines.top()->mMaxHeight; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 526 | mCacheLines.push(new CacheTextureLine(32, texType->getDimX(), nextLine, 0)); |
| 527 | nextLine += mCacheLines.top()->mMaxHeight; |
| 528 | mCacheLines.push(new CacheTextureLine(32, texType->getDimX(), nextLine, 0)); |
| 529 | nextLine += mCacheLines.top()->mMaxHeight; |
| 530 | mCacheLines.push(new CacheTextureLine(40, texType->getDimX(), nextLine, 0)); |
| 531 | nextLine += mCacheLines.top()->mMaxHeight; |
| 532 | mCacheLines.push(new CacheTextureLine(texType->getDimY() - nextLine, texType->getDimX(), nextLine, 0)); |
| 533 | } |
| 534 | |
| 535 | // Avoid having to reallocate memory and render quad by quad |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 536 | void FontState::initVertexArrayBuffers() { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 537 | // Now lets write index data |
| 538 | const Element *indexElem = Element::create(mRSC, RS_TYPE_UNSIGNED_16, RS_KIND_USER, false, 1); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 539 | uint32_t numIndicies = mMaxNumberOfQuads * 6; |
Jason Sams | f0c1df4 | 2010-10-26 13:09:17 -0700 | [diff] [blame] | 540 | Type *indexType = Type::getType(mRSC, indexElem, numIndicies, 0, 0, false, false); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 541 | |
Jason Sams | 366c9c8 | 2010-12-08 16:14:36 -0800 | [diff] [blame] | 542 | Allocation *indexAlloc = new Allocation(mRSC, indexType, RS_ALLOCATION_USAGE_SCRIPT | RS_ALLOCATION_USAGE_GRAPHICS_VERTEX); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 543 | uint16_t *indexPtr = (uint16_t*)indexAlloc->getPtr(); |
| 544 | |
| 545 | // Four verts, two triangles , six indices per quad |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 546 | for (uint32_t i = 0; i < mMaxNumberOfQuads; i ++) { |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 547 | int32_t i6 = i * 6; |
| 548 | int32_t i4 = i * 4; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 549 | |
| 550 | indexPtr[i6 + 0] = i4 + 0; |
| 551 | indexPtr[i6 + 1] = i4 + 1; |
| 552 | indexPtr[i6 + 2] = i4 + 2; |
| 553 | |
| 554 | indexPtr[i6 + 3] = i4 + 0; |
| 555 | indexPtr[i6 + 4] = i4 + 2; |
| 556 | indexPtr[i6 + 5] = i4 + 3; |
| 557 | } |
| 558 | |
| 559 | indexAlloc->deferedUploadToBufferObject(mRSC); |
| 560 | mIndexBuffer.set(indexAlloc); |
| 561 | |
| 562 | const Element *posElem = Element::create(mRSC, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 3); |
| 563 | const Element *texElem = Element::create(mRSC, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 2); |
| 564 | |
Alex Sakhartchouk | 64cd98e | 2010-10-18 17:18:50 -0700 | [diff] [blame] | 565 | mRSC->mStateElement.elementBuilderBegin(); |
| 566 | mRSC->mStateElement.elementBuilderAdd(posElem, "position", 1); |
| 567 | mRSC->mStateElement.elementBuilderAdd(texElem, "texture0", 1); |
| 568 | const Element *vertexDataElem = mRSC->mStateElement.elementBuilderCreate(mRSC); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 569 | |
Jason Sams | f0c1df4 | 2010-10-26 13:09:17 -0700 | [diff] [blame] | 570 | Type *vertexDataType = Type::getType(mRSC, vertexDataElem, |
| 571 | mMaxNumberOfQuads * 4, |
| 572 | 0, 0, false, false); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 573 | |
Jason Sams | 366c9c8 | 2010-12-08 16:14:36 -0800 | [diff] [blame] | 574 | Allocation *vertexAlloc = new Allocation(mRSC, vertexDataType, RS_ALLOCATION_USAGE_SCRIPT | RS_ALLOCATION_USAGE_GRAPHICS_VERTEX); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 575 | mTextMeshPtr = (float*)vertexAlloc->getPtr(); |
| 576 | |
| 577 | mVertexArray.set(vertexAlloc); |
| 578 | } |
| 579 | |
| 580 | // We don't want to allocate anything unless we actually draw text |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 581 | void FontState::checkInit() { |
| 582 | if (mInitialized) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 583 | return; |
| 584 | } |
| 585 | |
| 586 | initTextTexture(); |
| 587 | initRenderState(); |
| 588 | |
| 589 | initVertexArrayBuffers(); |
| 590 | |
Alex Sakhartchouk | 35b9644 | 2010-08-18 15:46:43 -0700 | [diff] [blame] | 591 | // We store a string with letters in a rough frequency of occurrence |
| 592 | mLatinPrecache = String8(" eisarntolcdugpmhbyfvkwzxjq"); |
| 593 | mLatinPrecache += String8("EISARNTOLCDUGPMHBYFVKWZXJQ"); |
| 594 | mLatinPrecache += String8(",.?!()-+@;:`'"); |
| 595 | mLatinPrecache += String8("0123456789"); |
| 596 | |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 597 | mInitialized = true; |
| 598 | } |
| 599 | |
| 600 | void FontState::issueDrawCommand() { |
Jason Sams | 6070925 | 2010-11-17 15:29:32 -0800 | [diff] [blame] | 601 | Context::PushState ps(mRSC); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 602 | |
Jason Sams | 6070925 | 2010-11-17 15:29:32 -0800 | [diff] [blame] | 603 | mRSC->setProgramVertex(mRSC->getDefaultProgramVertex()); |
| 604 | mRSC->setProgramRaster(mRSC->getDefaultProgramRaster()); |
| 605 | mRSC->setProgramFragment(mFontShaderF.get()); |
| 606 | mRSC->setProgramStore(mFontProgramStore.get()); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 607 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 608 | if (mConstantsDirty) { |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 609 | mFontShaderFConstant->data(mRSC, &mConstants, sizeof(mConstants)); |
| 610 | mConstantsDirty = false; |
Alex Sakhartchouk | ca5a454 | 2010-08-05 11:24:14 -0700 | [diff] [blame] | 611 | } |
| 612 | |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 613 | if (!mRSC->setupCheck()) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 614 | return; |
| 615 | } |
| 616 | |
| 617 | float *vtx = (float*)mVertexArray->getPtr(); |
| 618 | float *tex = vtx + 3; |
| 619 | |
Alex Sakhartchouk | 54929cc | 2010-11-08 15:10:52 -0800 | [diff] [blame] | 620 | VertexArray::Attrib attribs[2]; |
| 621 | attribs[0].set(GL_FLOAT, 3, 20, false, (uint32_t)vtx, "ATTRIB_position"); |
| 622 | attribs[1].set(GL_FLOAT, 2, 20, false, (uint32_t)tex, "ATTRIB_texture0"); |
| 623 | VertexArray va(attribs, 2); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 624 | va.setupGL2(mRSC, &mRSC->mStateVertexArray, &mRSC->mShaderCache); |
| 625 | |
| 626 | mIndexBuffer->uploadCheck(mRSC); |
| 627 | glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mIndexBuffer->getBufferObjectID()); |
| 628 | glDrawElements(GL_TRIANGLES, mCurrentQuadIndex * 6, GL_UNSIGNED_SHORT, (uint16_t *)(0)); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 629 | } |
| 630 | |
| 631 | void FontState::appendMeshQuad(float x1, float y1, float z1, |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 632 | float u1, float v1, |
| 633 | float x2, float y2, float z2, |
| 634 | float u2, float v2, |
| 635 | float x3, float y3, float z3, |
| 636 | float u3, float v3, |
| 637 | float x4, float y4, float z4, |
| 638 | float u4, float v4) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 639 | const uint32_t vertsPerQuad = 4; |
| 640 | const uint32_t floatsPerVert = 5; |
| 641 | float *currentPos = mTextMeshPtr + mCurrentQuadIndex * vertsPerQuad * floatsPerVert; |
| 642 | |
| 643 | // Cull things that are off the screen |
| 644 | float width = (float)mRSC->getWidth(); |
| 645 | float height = (float)mRSC->getHeight(); |
| 646 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 647 | if (x1 > width || y1 < 0.0f || x2 < 0 || y4 > height) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 648 | return; |
| 649 | } |
| 650 | |
| 651 | /*LOGE("V0 x: %f y: %f z: %f", x1, y1, z1); |
| 652 | LOGE("V1 x: %f y: %f z: %f", x2, y2, z2); |
| 653 | LOGE("V2 x: %f y: %f z: %f", x3, y3, z3); |
| 654 | LOGE("V3 x: %f y: %f z: %f", x4, y4, z4);*/ |
| 655 | |
| 656 | (*currentPos++) = x1; |
| 657 | (*currentPos++) = y1; |
| 658 | (*currentPos++) = z1; |
| 659 | (*currentPos++) = u1; |
| 660 | (*currentPos++) = v1; |
| 661 | |
| 662 | (*currentPos++) = x2; |
| 663 | (*currentPos++) = y2; |
| 664 | (*currentPos++) = z2; |
| 665 | (*currentPos++) = u2; |
| 666 | (*currentPos++) = v2; |
| 667 | |
| 668 | (*currentPos++) = x3; |
| 669 | (*currentPos++) = y3; |
| 670 | (*currentPos++) = z3; |
| 671 | (*currentPos++) = u3; |
| 672 | (*currentPos++) = v3; |
| 673 | |
| 674 | (*currentPos++) = x4; |
| 675 | (*currentPos++) = y4; |
| 676 | (*currentPos++) = z4; |
| 677 | (*currentPos++) = u4; |
| 678 | (*currentPos++) = v4; |
| 679 | |
| 680 | mCurrentQuadIndex ++; |
| 681 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 682 | if (mCurrentQuadIndex == mMaxNumberOfQuads) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 683 | issueDrawCommand(); |
| 684 | mCurrentQuadIndex = 0; |
| 685 | } |
| 686 | } |
| 687 | |
Alex Sakhartchouk | 01bcef6 | 2010-08-17 11:09:49 -0700 | [diff] [blame] | 688 | uint32_t FontState::getRemainingCacheCapacity() { |
| 689 | uint32_t remainingCapacity = 0; |
Alex Sakhartchouk | 35b9644 | 2010-08-18 15:46:43 -0700 | [diff] [blame] | 690 | uint32_t totalPixels = 0; |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 691 | for (uint32_t i = 0; i < mCacheLines.size(); i ++) { |
Alex Sakhartchouk | 01bcef6 | 2010-08-17 11:09:49 -0700 | [diff] [blame] | 692 | remainingCapacity += (mCacheLines[i]->mMaxWidth - mCacheLines[i]->mCurrentCol); |
| 693 | totalPixels += mCacheLines[i]->mMaxWidth; |
| 694 | } |
| 695 | remainingCapacity = (remainingCapacity * 100) / totalPixels; |
| 696 | return remainingCapacity; |
| 697 | } |
| 698 | |
| 699 | void FontState::precacheLatin(Font *font) { |
| 700 | // Remaining capacity is measured in % |
| 701 | uint32_t remainingCapacity = getRemainingCacheCapacity(); |
| 702 | uint32_t precacheIdx = 0; |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 703 | while (remainingCapacity > 25 && precacheIdx < mLatinPrecache.size()) { |
Alex Sakhartchouk | 01bcef6 | 2010-08-17 11:09:49 -0700 | [diff] [blame] | 704 | font->getCachedUTFChar((int32_t)mLatinPrecache[precacheIdx]); |
| 705 | remainingCapacity = getRemainingCacheCapacity(); |
| 706 | precacheIdx ++; |
| 707 | } |
| 708 | } |
| 709 | |
| 710 | |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 711 | void FontState::renderText(const char *text, uint32_t len, int32_t x, int32_t y, |
| 712 | uint32_t startIndex, int32_t numGlyphs, |
| 713 | Font::RenderMode mode, |
| 714 | Font::Rect *bounds, |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 715 | uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 716 | checkInit(); |
| 717 | |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 718 | // Render code here |
| 719 | Font *currentFont = mRSC->getFont(); |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 720 | if (!currentFont) { |
| 721 | if (!mDefault.get()) { |
Alex Sakhartchouk | c17ace2 | 2010-12-17 11:41:08 -0800 | [diff] [blame^] | 722 | String8 fontsDir("/fonts/DroidSans.ttf"); |
| 723 | String8 fullPath(getenv("ANDROID_ROOT")); |
| 724 | fullPath += fontsDir; |
| 725 | |
| 726 | mDefault.set(Font::create(mRSC, fullPath.string(), 16, 96)); |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 727 | } |
| 728 | currentFont = mDefault.get(); |
| 729 | } |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 730 | if (!currentFont) { |
Alex Sakhartchouk | 3659d94 | 2010-06-30 16:53:43 -0700 | [diff] [blame] | 731 | LOGE("Unable to initialize any fonts"); |
| 732 | return; |
| 733 | } |
| 734 | |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 735 | currentFont->renderUTF(text, len, x, y, startIndex, numGlyphs, |
| 736 | mode, bounds, bitmap, bitmapW, bitmapH); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 737 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 738 | if (mCurrentQuadIndex != 0) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 739 | issueDrawCommand(); |
| 740 | mCurrentQuadIndex = 0; |
| 741 | } |
| 742 | } |
| 743 | |
Alex Sakhartchouk | 09c6735 | 2010-10-05 11:33:27 -0700 | [diff] [blame] | 744 | void FontState::measureText(const char *text, uint32_t len, Font::Rect *bounds) { |
| 745 | renderText(text, len, 0, 0, 0, -1, Font::MEASURE, bounds); |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 746 | } |
| 747 | |
Alex Sakhartchouk | 9fc9f03 | 2010-08-04 14:45:48 -0700 | [diff] [blame] | 748 | void FontState::setFontColor(float r, float g, float b, float a) { |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 749 | mConstants.mFontColor[0] = r; |
| 750 | mConstants.mFontColor[1] = g; |
| 751 | mConstants.mFontColor[2] = b; |
| 752 | mConstants.mFontColor[3] = a; |
| 753 | |
| 754 | mConstants.mGamma = 1.0f; |
Alex Sakhartchouk | c8fb69e | 2010-10-05 13:23:55 -0700 | [diff] [blame] | 755 | const float luminance = (r * 2.0f + g * 5.0f + b) / 8.0f; |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 756 | if (luminance <= mBlackThreshold) { |
| 757 | mConstants.mGamma = mBlackGamma; |
| 758 | } else if (luminance >= mWhiteThreshold) { |
| 759 | mConstants.mGamma = mWhiteGamma; |
| 760 | } |
Alex Sakhartchouk | 4f230b3 | 2010-10-12 14:15:17 -0700 | [diff] [blame] | 761 | |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 762 | mConstantsDirty = true; |
Alex Sakhartchouk | 9fc9f03 | 2010-08-04 14:45:48 -0700 | [diff] [blame] | 763 | } |
| 764 | |
Alex Sakhartchouk | ca5a454 | 2010-08-05 11:24:14 -0700 | [diff] [blame] | 765 | void FontState::getFontColor(float *r, float *g, float *b, float *a) const { |
Alex Sakhartchouk | c9fa305 | 2010-10-01 15:20:41 -0700 | [diff] [blame] | 766 | *r = mConstants.mFontColor[0]; |
| 767 | *g = mConstants.mFontColor[1]; |
| 768 | *b = mConstants.mFontColor[2]; |
| 769 | *a = mConstants.mFontColor[3]; |
Alex Sakhartchouk | ca5a454 | 2010-08-05 11:24:14 -0700 | [diff] [blame] | 770 | } |
| 771 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 772 | void FontState::deinit(Context *rsc) { |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 773 | mInitialized = false; |
| 774 | |
Stephen Hines | 01b7d29 | 2010-09-28 15:45:45 -0700 | [diff] [blame] | 775 | mFontShaderFConstant.clear(); |
| 776 | |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 777 | mIndexBuffer.clear(); |
| 778 | mVertexArray.clear(); |
| 779 | |
| 780 | mFontShaderF.clear(); |
| 781 | mFontSampler.clear(); |
| 782 | mFontProgramStore.clear(); |
| 783 | |
| 784 | mTextTexture.clear(); |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 785 | for (uint32_t i = 0; i < mCacheLines.size(); i ++) { |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 786 | delete mCacheLines[i]; |
| 787 | } |
| 788 | mCacheLines.clear(); |
| 789 | |
| 790 | mDefault.clear(); |
| 791 | |
Alex Sakhartchouk | 3659d94 | 2010-06-30 16:53:43 -0700 | [diff] [blame] | 792 | Vector<Font*> fontsToDereference = mActiveFonts; |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 793 | for (uint32_t i = 0; i < fontsToDereference.size(); i ++) { |
Alex Sakhartchouk | 3659d94 | 2010-06-30 16:53:43 -0700 | [diff] [blame] | 794 | fontsToDereference[i]->zeroUserRef(); |
| 795 | } |
| 796 | |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 797 | if (mLibrary) { |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 798 | FT_Done_FreeType( mLibrary ); |
Alex Sakhartchouk | 3659d94 | 2010-06-30 16:53:43 -0700 | [diff] [blame] | 799 | mLibrary = NULL; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 800 | } |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 801 | } |
| 802 | |
| 803 | namespace android { |
| 804 | namespace renderscript { |
| 805 | |
Alex Sakhartchouk | c17ace2 | 2010-12-17 11:41:08 -0800 | [diff] [blame^] | 806 | RsFont rsi_FontCreateFromFile(Context *rsc, char const *name, float fontSize, uint32_t dpi) { |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 807 | Font *newFont = Font::create(rsc, name, fontSize, dpi); |
Alex Sakhartchouk | afb743a | 2010-11-09 17:00:54 -0800 | [diff] [blame] | 808 | if (newFont) { |
Alex Sakhartchouk | a1ccecd | 2010-06-30 12:49:27 -0700 | [diff] [blame] | 809 | newFont->incUserRef(); |
| 810 | } |
| 811 | return newFont; |
Alex Sakhartchouk | d3e0ad4 | 2010-06-24 17:15:34 -0700 | [diff] [blame] | 812 | } |
| 813 | |
| 814 | } // renderscript |
| 815 | } // android |