| // Copyright 2015 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "cobalt/renderer/backend/egl/pbuffer_render_target.h" |
| |
| #include <GLES2/gl2.h> |
| |
| #include "cobalt/renderer/backend/egl/utils.h" |
| |
| namespace cobalt { |
| namespace renderer { |
| namespace backend { |
| |
| PBufferRenderTargetEGL::PBufferRenderTargetEGL(EGLDisplay display, |
| EGLConfig config, |
| const math::Size& dimensions) |
| : display_(display), config_(config), size_(dimensions) { |
| EGLint surface_attrib_list[] = { |
| EGL_WIDTH, dimensions.width(), |
| EGL_HEIGHT, dimensions.height(), |
| EGL_TEXTURE_TARGET, EGL_TEXTURE_2D, |
| EGL_TEXTURE_FORMAT, EGL_TEXTURE_RGBA, |
| EGL_NONE, |
| }; |
| // When a dummy 0-area render target is requested, it will not be used as a |
| // drawing target and we therefore don't require for it to be a texture. |
| if (dimensions.height() == 0 && dimensions.width() == 0) { |
| // Fake 1x1 to avoid an arithmetic error (SIGFPE) in eglMakeCurrent() on |
| // some platforms. |
| surface_attrib_list[1] = surface_attrib_list[3] = 1; |
| surface_attrib_list[4] = EGL_NONE; |
| } |
| |
| surface_ = |
| eglCreatePbufferSurface(display_, config_, surface_attrib_list); |
| CHECK_EQ(EGL_SUCCESS, eglGetError()); |
| } |
| |
| const math::Size& PBufferRenderTargetEGL::GetSize() const { return size_; } |
| |
| EGLSurface PBufferRenderTargetEGL::GetSurface() const { |
| return surface_; |
| } |
| |
| PBufferRenderTargetEGL::~PBufferRenderTargetEGL() { |
| EGL_CALL(eglDestroySurface(display_, surface_)); |
| } |
| |
| } // namespace backend |
| } // namespace renderer |
| } // namespace cobalt |