Zach Reizner | 0980705 | 2015-08-13 14:53:41 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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_AUTO_GL_H_ |
| 18 | #define ANDROID_AUTO_GL_H_ |
| 19 | |
| 20 | #include <memory> |
| 21 | #define EGL_EGLEXT_PROTOTYPES |
| 22 | #define GL_GLEXT_PROTOTYPES |
| 23 | |
| 24 | #include <EGL/egl.h> |
| 25 | #include <EGL/eglext.h> |
| 26 | #include <GLES2/gl2.h> |
| 27 | #include <GLES2/gl2ext.h> |
| 28 | |
| 29 | // TODO(zachr): use hwc_drm_bo to turn buffer handles into textures |
| 30 | #ifndef EGL_NATIVE_HANDLE_ANDROID_NVX |
| 31 | #define EGL_NATIVE_HANDLE_ANDROID_NVX 0x322A |
| 32 | #endif |
| 33 | |
| 34 | namespace android { |
| 35 | |
| 36 | #define AUTO_GL_TYPE(name, type, zero, deleter) \ |
| 37 | struct name##Deleter { \ |
| 38 | typedef type pointer; \ |
| 39 | \ |
| 40 | void operator()(pointer p) const { \ |
| 41 | if (p != zero) { \ |
| 42 | deleter; \ |
| 43 | } \ |
| 44 | } \ |
| 45 | }; \ |
| 46 | typedef std::unique_ptr<type, name##Deleter> name; |
| 47 | |
| 48 | AUTO_GL_TYPE(AutoGLFramebuffer, GLuint, 0, glDeleteFramebuffers(1, &p)) |
| 49 | AUTO_GL_TYPE(AutoGLBuffer, GLuint, 0, glDeleteBuffers(1, &p)) |
| 50 | AUTO_GL_TYPE(AutoGLTexture, GLuint, 0, glDeleteTextures(1, &p)) |
| 51 | AUTO_GL_TYPE(AutoGLShader, GLint, 0, glDeleteShader(p)) |
| 52 | AUTO_GL_TYPE(AutoGLProgram, GLint, 0, glDeleteProgram(p)) |
| 53 | |
| 54 | struct AutoEGLDisplayImage { |
Zach Reizner | 0867992 | 2015-10-09 09:54:42 -0700 | [diff] [blame] | 55 | AutoEGLDisplayImage() = default; |
Zach Reizner | 0980705 | 2015-08-13 14:53:41 -0700 | [diff] [blame] | 56 | |
| 57 | AutoEGLDisplayImage(EGLDisplay display, EGLImageKHR image) |
| 58 | : display_(display), image_(image) { |
| 59 | } |
| 60 | |
| 61 | AutoEGLDisplayImage(const AutoEGLDisplayImage& rhs) = delete; |
| 62 | AutoEGLDisplayImage(AutoEGLDisplayImage&& rhs) { |
Season Li | e823f64 | 2015-10-07 17:47:55 -0700 | [diff] [blame] | 63 | display_ = rhs.display_; |
| 64 | image_ = rhs.image_; |
| 65 | rhs.display_ = EGL_NO_DISPLAY; |
| 66 | rhs.image_ = EGL_NO_IMAGE_KHR; |
Zach Reizner | 0980705 | 2015-08-13 14:53:41 -0700 | [diff] [blame] | 67 | } |
| 68 | |
| 69 | ~AutoEGLDisplayImage() { |
| 70 | clear(); |
| 71 | } |
| 72 | |
| 73 | AutoEGLDisplayImage& operator=(const AutoEGLDisplayImage& rhs) = delete; |
| 74 | AutoEGLDisplayImage& operator=(AutoEGLDisplayImage&& rhs) { |
| 75 | clear(); |
| 76 | std::swap(display_, rhs.display_); |
| 77 | std::swap(image_, rhs.image_); |
| 78 | return *this; |
| 79 | } |
| 80 | |
| 81 | void reset(EGLDisplay display, EGLImageKHR image) { |
| 82 | clear(); |
| 83 | display_ = display; |
| 84 | image_ = image; |
| 85 | } |
| 86 | |
| 87 | void clear() { |
| 88 | if (image_ != EGL_NO_IMAGE_KHR) { |
| 89 | eglDestroyImageKHR(display_, image_); |
| 90 | display_ = EGL_NO_DISPLAY; |
| 91 | image_ = EGL_NO_IMAGE_KHR; |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | EGLImageKHR image() const { |
| 96 | return image_; |
| 97 | } |
| 98 | |
| 99 | private: |
Zach Reizner | 0867992 | 2015-10-09 09:54:42 -0700 | [diff] [blame] | 100 | EGLDisplay display_ = EGL_NO_DISPLAY; |
| 101 | EGLImageKHR image_ = EGL_NO_IMAGE_KHR; |
Zach Reizner | 0980705 | 2015-08-13 14:53:41 -0700 | [diff] [blame] | 102 | }; |
| 103 | |
| 104 | struct AutoEGLImageAndGLTexture { |
| 105 | AutoEGLDisplayImage image; |
| 106 | AutoGLTexture texture; |
| 107 | }; |
| 108 | } |
| 109 | |
| 110 | #endif |