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#ifndef ANDROID_SURFACE_TEXTURE_FBO_H
18#define ANDROID_SURFACE_TEXTURE_FBO_H
19
20#include "SurfaceTextureGL.h"
21
22#include <GLES2/gl2.h>
23
24namespace android {
25
26class SurfaceTextureFBOTest : public SurfaceTextureGLTest {
27protected:
28    virtual void SetUp() {
29        SurfaceTextureGLTest::SetUp();
30
31        glGenFramebuffers(1, &mFbo);
32        ASSERT_EQ(GLenum(GL_NO_ERROR), glGetError());
33
34        glGenTextures(1, &mFboTex);
35        glBindTexture(GL_TEXTURE_2D, mFboTex);
36        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, getSurfaceWidth(),
37                getSurfaceHeight(), 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
38        glBindTexture(GL_TEXTURE_2D, 0);
39        ASSERT_EQ(GLenum(GL_NO_ERROR), glGetError());
40
41        glBindFramebuffer(GL_FRAMEBUFFER, mFbo);
42        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
43                GL_TEXTURE_2D, mFboTex, 0);
44        glBindFramebuffer(GL_FRAMEBUFFER, 0);
45        ASSERT_EQ(GLenum(GL_NO_ERROR), glGetError());
46    }
47
48    virtual void TearDown() {
49        SurfaceTextureGLTest::TearDown();
50
51        glDeleteTextures(1, &mFboTex);
52        glDeleteFramebuffers(1, &mFbo);
53    }
54
55    GLuint mFbo;
56    GLuint mFboTex;
57};
58
59void fillRGBA8BufferSolid(uint8_t* buf, int w, int h, int stride,
60        uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
61    const size_t PIXEL_SIZE = 4;
62    for (int y = 0; y < h; y++) {
63        for (int x = 0; x < w; x++) {
64            off_t offset = (y * stride + x) * PIXEL_SIZE;
65            buf[offset + 0] = r;
66            buf[offset + 1] = g;
67            buf[offset + 2] = b;
68            buf[offset + 3] = a;
69        }
70    }
71}
72
73} // namespace android
74
75#endif
76