Romain Guy | ce0537b | 2010-06-29 21:05:21 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2010 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <GLES2/gl2.h> |
| 18 | |
| 19 | #include "TextureCache.h" |
| 20 | |
| 21 | namespace android { |
| 22 | namespace uirenderer { |
| 23 | |
| 24 | TextureCache::TextureCache(unsigned int maxEntries): mCache(maxEntries) { |
| 25 | mCache.setOnEntryRemovedListener(this); |
| 26 | } |
| 27 | |
| 28 | TextureCache::~TextureCache() { |
| 29 | mCache.clear(); |
| 30 | } |
| 31 | |
| 32 | void TextureCache::operator()(SkBitmap* key, Texture* value) { |
| 33 | LOGD("Entry removed"); |
| 34 | if (value) { |
| 35 | glDeleteTextures(1, &value->id); |
| 36 | delete value; |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | Texture* TextureCache::get(SkBitmap* bitmap) { |
| 41 | Texture* texture = mCache.get(bitmap); |
| 42 | if (!texture) { |
| 43 | texture = generateTexture(bitmap); |
| 44 | mCache.put(bitmap, texture); |
| 45 | } |
| 46 | return texture; |
| 47 | } |
| 48 | |
| 49 | Texture* TextureCache::remove(SkBitmap* bitmap) { |
| 50 | return mCache.remove(bitmap); |
| 51 | } |
| 52 | |
| 53 | void TextureCache::clear() { |
| 54 | mCache.clear(); |
| 55 | } |
| 56 | |
| 57 | Texture* TextureCache::generateTexture(SkBitmap* bitmap) { |
| 58 | Texture* texture = new Texture; |
| 59 | |
| 60 | texture->width = bitmap->width(); |
| 61 | texture->height = bitmap->height(); |
| 62 | |
| 63 | glGenTextures(1, &texture->id); |
| 64 | glBindTexture(GL_TEXTURE_2D, texture->id); |
| 65 | |
| 66 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
| 67 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| 68 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
| 69 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
| 70 | |
| 71 | switch (bitmap->getConfig()) { |
| 72 | case SkBitmap::kRGB_565_Config: |
| 73 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB565, texture->width, texture->height, |
| 74 | 0, GL_RGB565, GL_UNSIGNED_SHORT_5_6_5, bitmap->getPixels()); |
| 75 | break; |
| 76 | case SkBitmap::kARGB_8888_Config: |
| 77 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texture->width, texture->height, |
| 78 | 0, GL_RGBA, GL_UNSIGNED_BYTE, bitmap->getPixels()); |
| 79 | break; |
| 80 | } |
| 81 | |
| 82 | return texture; |
| 83 | } |
| 84 | |
| 85 | }; // namespace uirenderer |
| 86 | }; // namespace android |