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#include <map>
24
25#include <GLES2/gl2.h>
26
27#include "Debug.h"
28#include "Program.h"
29
30namespace android {
31namespace uirenderer {
32
33///////////////////////////////////////////////////////////////////////////////
34// Cache
35///////////////////////////////////////////////////////////////////////////////
36
37/**
38 * Generates and caches program. Programs are generated based on
39 * ProgramDescriptions.
40 */
41class ProgramCache {
42public:
43    ProgramCache(Extensions& extensions);
44    ~ProgramCache();
45
46    Program* get(const ProgramDescription& description);
47
48    void clear();
49
50private:
51    Program* generateProgram(const ProgramDescription& description, programid key);
52    String8 generateVertexShader(const ProgramDescription& description);
53    String8 generateFragmentShader(const ProgramDescription& description);
54    void generateBlend(String8& shader, const char* name, SkXfermode::Mode mode);
55    void generateTextureWrap(String8& shader, GLenum wrapS, GLenum wrapT);
56
57    void printLongString(const String8& shader) const;
58
59    std::map<programid, std::unique_ptr<Program>> mCache;
60
61    const bool mHasES3;
62}; // class ProgramCache
63
64}; // namespace uirenderer
65}; // namespace android
66
67#endif // ANDROID_HWUI_PROGRAM_CACHE_H
68