ProgramCache.h revision 2dc236b2bae13b9a0ed9b3f7320502aecd7983b3 
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#ifndef ANDROID_HWUI_PROGRAM_CACHE_H
18#define ANDROID_HWUI_PROGRAM_CACHE_H
19
20#include <utils/KeyedVector.h>
21#include <utils/Log.h>
22#include <utils/String8.h>
23
24#include <GLES2/gl2.h>
25
26#include "Debug.h"
27#include "Program.h"
28
29namespace android {
30namespace uirenderer {
31
32///////////////////////////////////////////////////////////////////////////////
33// Cache
34///////////////////////////////////////////////////////////////////////////////
35
36/**
37 * Generates and caches program. Programs are generated based on
38 * ProgramDescriptions.
39 */
40class ProgramCache {
41public:
42    ProgramCache();
43    ~ProgramCache();
44
45    Program* get(const ProgramDescription& description);
46
47    void clear();
48
49private:
50    Program* generateProgram(const ProgramDescription& description, programid key);
51    String8 generateVertexShader(const ProgramDescription& description);
52    String8 generateFragmentShader(const ProgramDescription& description);
53    void generateBlend(String8& shader, const char* name, SkXfermode::Mode mode);
54    void generateTextureWrap(String8& shader, GLenum wrapS, GLenum wrapT);
55
56    void printLongString(const String8& shader) const;
57
58    KeyedVector<programid, Program*> mCache;
59
60    const bool mHasES3;
61}; // class ProgramCache
62
63}; // namespace uirenderer
64}; // namespace android
65
66#endif // ANDROID_HWUI_PROGRAM_CACHE_H
67