1/*
2 * Copyright (C) 2013 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#define LOG_TAG "OpenGLRenderer"
18
19#include <utils/Log.h>
20
21#include "Caches.h"
22#include "Texture.h"
23
24namespace android {
25namespace uirenderer {
26
27Texture::Texture(): id(0), generation(0), blend(false), width(0), height(0),
28        cleanup(false), bitmapSize(0), mipMap(false), uvMapper(NULL), isInUse(false),
29        mWrapS(GL_CLAMP_TO_EDGE), mWrapT(GL_CLAMP_TO_EDGE),
30        mMinFilter(GL_NEAREST), mMagFilter(GL_NEAREST),
31        mFirstFilter(true), mFirstWrap(true), mCaches(Caches::getInstance()) {
32}
33
34Texture::Texture(Caches& caches): id(0), generation(0), blend(false), width(0), height(0),
35        cleanup(false), bitmapSize(0), mipMap(false), uvMapper(NULL), isInUse(false),
36        mWrapS(GL_CLAMP_TO_EDGE), mWrapT(GL_CLAMP_TO_EDGE),
37        mMinFilter(GL_NEAREST), mMagFilter(GL_NEAREST),
38        mFirstFilter(true), mFirstWrap(true), mCaches(caches) {
39}
40
41void Texture::setWrapST(GLenum wrapS, GLenum wrapT, bool bindTexture, bool force,
42        GLenum renderTarget) {
43
44    if (mFirstWrap || force || wrapS != mWrapS || wrapT != mWrapT) {
45        mFirstWrap = false;
46
47        mWrapS = wrapS;
48        mWrapT = wrapT;
49
50        if (bindTexture) {
51            mCaches.bindTexture(renderTarget, id);
52        }
53
54        glTexParameteri(renderTarget, GL_TEXTURE_WRAP_S, wrapS);
55        glTexParameteri(renderTarget, GL_TEXTURE_WRAP_T, wrapT);
56    }
57}
58
59void Texture::setFilterMinMag(GLenum min, GLenum mag, bool bindTexture, bool force,
60        GLenum renderTarget) {
61
62    if (mFirstFilter || force || min != mMinFilter || mag != mMagFilter) {
63        mFirstFilter = false;
64
65        mMinFilter = min;
66        mMagFilter = mag;
67
68        if (bindTexture) {
69            mCaches.bindTexture(renderTarget, id);
70        }
71
72        if (mipMap && min == GL_LINEAR) min = GL_LINEAR_MIPMAP_LINEAR;
73
74        glTexParameteri(renderTarget, GL_TEXTURE_MIN_FILTER, min);
75        glTexParameteri(renderTarget, GL_TEXTURE_MAG_FILTER, mag);
76    }
77}
78
79void Texture::deleteTexture() const {
80    mCaches.deleteTexture(id);
81}
82
83}; // namespace uirenderer
84}; // namespace android
85