1 /*
2 * Copyright 2020 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 <GLES/gl.h>
18 #include <GLES/glext.h>
19 #include <GLES2/gl2.h>
20 #include <GLES2/gl2ext.h>
21 #include <GLES3/gl3.h>
22
23 #include "GLShadowTexture.h"
24 #include "GLSkiaShadowPort.h"
25
26 namespace android {
27 namespace renderengine {
28 namespace gl {
29
GLShadowTexture()30 GLShadowTexture::GLShadowTexture() {
31 fillShadowTextureData(mTextureData, SHADOW_TEXTURE_WIDTH);
32
33 glGenTextures(1, &mName);
34 glBindTexture(GL_TEXTURE_2D, mName);
35 glTexImage2D(GL_TEXTURE_2D, 0 /* base image level */, GL_ALPHA, SHADOW_TEXTURE_WIDTH,
36 SHADOW_TEXTURE_HEIGHT, 0 /* border */, GL_ALPHA, GL_UNSIGNED_BYTE, mTextureData);
37 mTexture.init(Texture::TEXTURE_2D, mName);
38 mTexture.setFiltering(true);
39 mTexture.setDimensions(SHADOW_TEXTURE_WIDTH, 1);
40 }
41
~GLShadowTexture()42 GLShadowTexture::~GLShadowTexture() {
43 glDeleteTextures(1, &mName);
44 }
45
getTexture()46 const Texture& GLShadowTexture::getTexture() {
47 return mTexture;
48 }
49
50 } // namespace gl
51 } // namespace renderengine
52 } // namespace android
53