git.sesse.net Git - casparcg/blob - core/mixer/gpu/ogl_device.cpp

   1 /*\r
   2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 *  This file is part of CasparCG.\r
   5 *\r
   6 *    CasparCG is free software: you can redistribute it and/or modify\r
   7 *    it under the terms of the GNU General Public License as published by\r
   8 *    the Free Software Foundation, either version 3 of the License, or\r
   9 *    (at your option) any later version.\r
  10 *\r
  11 *    CasparCG is distributed in the hope that it will be useful,\r
  12 *    but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14 *    GNU General Public License for more details.\r
  15 \r
  16 *    You should have received a copy of the GNU General Public License\r
  17 *    along with CasparCG.  If not, see <http://www.gnu.org/licenses/>.\r
  18 *\r
  19 */\r
  20 #include "../../stdafx.h"\r
  21 \r
  22 #include "ogl_device.h"\r
  23 \r
  24 #include <common/utility/assert.h>\r
  25 \r
  26 #include <Glee.h>\r
  27 #include <SFML/Window.hpp>\r
  28 \r
  29 #include <boost/foreach.hpp>\r
  30 \r
  31 namespace caspar { namespace mixer {\r
  32 \r
  33 ogl_device::ogl_device() : executor_(L"ogl_device")\r
  34 {\r
  35         executor_.start();\r
  36         invoke([=]\r
  37         {\r
  38                 context_.reset(new sf::Context());\r
  39                 context_->SetActive(true);\r
  40         });\r
  41 }\r
  42 \r
  43 ogl_device::~ogl_device()\r
  44 {\r
  45         invoke([=]\r
  46         {\r
  47                 BOOST_FOREACH(auto& pool, device_pools_)\r
  48                         pool.clear();\r
  49                 BOOST_FOREACH(auto& pool, host_pools_)\r
  50                         pool.clear();\r
  51         });\r
  52 }\r
  53                                 \r
  54 safe_ptr<device_buffer> ogl_device::do_create_device_buffer(size_t width, size_t height, size_t stride)\r
  55 {\r
  56         CASPAR_VERIFY(stride > 0 && stride < 5);\r
  57         CASPAR_VERIFY(width > 0 && height > 0);\r
  58         auto pool = &device_pools_[stride-1][((width << 16) & 0xFFFF0000) | (height & 0x0000FFFF)];\r
  59         std::shared_ptr<device_buffer> buffer;\r
  60         if(!pool->try_pop(buffer))              \r
  61         {\r
  62                 executor_.invoke([&]\r
  63                 {\r
  64                         buffer = std::make_shared<device_buffer>(width, height, stride);\r
  65                 });     \r
  66                 executor_.begin_invoke([=]\r
  67                 {\r
  68                         auto buffer = std::make_shared<device_buffer>(width, height, stride);\r
  69                         pool->try_push(buffer);\r
  70                 });     \r
  71         }\r
  72                         \r
  73         return safe_ptr<device_buffer>(buffer.get(), [=](device_buffer*){pool->push(buffer);});\r
  74 }\r
  75         \r
  76 safe_ptr<host_buffer> ogl_device::do_create_host_buffer(size_t size, host_buffer::usage_t usage)\r
  77 {\r
  78         CASPAR_VERIFY(usage == host_buffer::write_only || usage == host_buffer::read_only);\r
  79         CASPAR_VERIFY(size > 0);\r
  80         auto pool = &host_pools_[usage][size];\r
  81         std::shared_ptr<host_buffer> buffer;\r
  82         if(!pool->try_pop(buffer))\r
  83         {\r
  84                 executor_.invoke([&]\r
  85                 {\r
  86                         buffer = std::make_shared<host_buffer>(size, usage);\r
  87                         if(usage == host_buffer::write_only)\r
  88                                 buffer->map();\r
  89                         else\r
  90                                 buffer->unmap();\r
  91                 });     \r
  92                 executor_.begin_invoke([=]\r
  93                 {\r
  94                         auto buffer = std::make_shared<host_buffer>(size, usage);\r
  95                         if(usage == host_buffer::write_only)\r
  96                                 buffer->map();\r
  97                         else\r
  98                                 buffer->unmap();\r
  99                         pool->try_push(buffer);\r
 100                 });     \r
 101         }\r
 102         \r
 103         return safe_ptr<host_buffer>(buffer.get(), [=](host_buffer*)\r
 104         {\r
 105                 executor_.begin_invoke([=]\r
 106                 {\r
 107                         if(usage == host_buffer::write_only)\r
 108                                 buffer->map();\r
 109                         else\r
 110                                 buffer->unmap();\r
 111                         pool->push(buffer);\r
 112                 });\r
 113         });\r
 114 }\r
 115 \r
 116 std::wstring ogl_device::get_version()\r
 117 {       \r
 118         return widen(invoke([]{return std::string(reinterpret_cast<const char*>(glGetString(GL_VERSION)));})\r
 119         + " "   + invoke([]{return std::string(reinterpret_cast<const char*>(glGetString(GL_VENDOR)));}));      \r
 120 }\r
 121 \r
 122 }}