1/*
2 * Copyright 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#include <stdint.h>
18#include <string.h>
19
20#include <utils/TypeHelpers.h>
21
22#include <GLES2/gl2.h>
23#include <GLES2/gl2ext.h>
24
25#include "Description.h"
26
27namespace android {
28
29Description::Description() :
30    mUniformsDirty(true) {
31    mPlaneAlpha = 1.0f;
32    mPremultipliedAlpha = false;
33    mOpaque = true;
34    mTextureEnabled = false;
35    mColorMatrixEnabled = false;
36
37    memset(mColor, 0, sizeof(mColor));
38}
39
40Description::~Description() {
41}
42
43void Description::setPlaneAlpha(GLclampf planeAlpha) {
44    if (planeAlpha != mPlaneAlpha) {
45        mUniformsDirty = true;
46        mPlaneAlpha = planeAlpha;
47    }
48}
49
50void Description::setPremultipliedAlpha(bool premultipliedAlpha) {
51    if (premultipliedAlpha != mPremultipliedAlpha) {
52        mPremultipliedAlpha = premultipliedAlpha;
53    }
54}
55
56void Description::setOpaque(bool opaque) {
57    if (opaque != mOpaque) {
58        mOpaque = opaque;
59    }
60}
61
62void Description::setTexture(const Texture& texture) {
63    mTexture = texture;
64    mTextureEnabled = true;
65    mUniformsDirty = true;
66}
67
68void Description::disableTexture() {
69    mTextureEnabled = false;
70}
71
72void Description::setColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha) {
73    mColor[0] = red;
74    mColor[1] = green;
75    mColor[2] = blue;
76    mColor[3] = alpha;
77    mUniformsDirty = true;
78}
79
80void Description::setProjectionMatrix(const mat4& mtx) {
81    mProjectionMatrix = mtx;
82    mUniformsDirty = true;
83}
84
85void Description::setColorMatrix(const mat4& mtx) {
86    const mat4 identity;
87    mColorMatrix = mtx;
88    mColorMatrixEnabled = (mtx != identity);
89}
90
91const mat4& Description::getColorMatrix() const {
92    return mColorMatrix;
93}
94
95
96} /* namespace android */
97