2.0. Fixed rendering stalls caused by ogl frame allocation delays.

[casparcg] / core / mixer / gpu / ogl_device.h

diff --git a/core/mixer/gpu/ogl_device.h b/core/mixer/gpu/ogl_device.h
index 94c1e5483b2ed6075033c4f542920b9d7a1bd481..872046c0b3b46072f26ef5cd782750622af8c3f2 100644 (file)
--- a/core/mixer/gpu/ogl_device.h
+++ b/core/mixer/gpu/ogl_device.h
@@ -1,3 +1,22 @@
+/*\r
+* copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
+*\r
+*  This file is part of CasparCG.\r
+*\r
+*    CasparCG is free software: you can redistribute it and/or modify\r
+*    it under the terms of the GNU General Public License as published by\r
+*    the Free Software Foundation, either version 3 of the License, or\r
+*    (at your option) any later version.\r
+*\r
+*    CasparCG is distributed in the hope that it will be useful,\r
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
+*    GNU General Public License for more details.\r
+\r
+*    You should have received a copy of the GNU General Public License\r
+*    along with CasparCG.  If not, see <http://www.gnu.org/licenses/>.\r
+*\r
+*/\r
 #pragma once\r
 \r
 #include "host_buffer.h"\r
@@ -9,38 +28,102 @@
 #include <tbb/concurrent_unordered_map.h>\r
 #include <tbb/concurrent_queue.h>\r
 \r
+#include <boost/noncopyable.hpp>\r
 #include <boost/thread/future.hpp>\r
 \r
 #include <array>\r
+#include <unordered_map>\r
+\r
+#include <gl/glew.h>\r
+\r
+#include "../../dependencies\SFML-1.6\include\SFML/Window/Context.hpp"\r
 \r
 namespace caspar { namespace core {\r
 \r
-class ogl_device\r
+class shader;\r
+\r
+template<typename T>\r
+struct buffer_pool\r
+{\r
+       tbb::atomic<int> usage_count;\r
+       tbb::atomic<int> flush_count;\r
+       tbb::concurrent_bounded_queue<std::shared_ptr<T>> items;\r
+\r
+       buffer_pool()\r
+       {\r
+               usage_count = 0;\r
+               flush_count = 0;\r
+       }\r
+};\r
+\r
+class ogl_device : boost::noncopyable\r
 {      \r
-public:        \r
+       std::unordered_map<GLenum, bool> caps_;\r
+       std::array<size_t, 4>                    viewport_;\r
+       std::array<size_t, 4>                    scissor_;\r
+       const GLubyte*                                   pattern_;\r
+       GLint                                                    attached_texture_;\r
+       GLint                                                    active_shader_;\r
+       std::array<GLint, 16>                    binded_textures_;\r
+       std::array<GLint, 4>                     blend_func_;\r
+\r
+       std::unique_ptr<sf::Context> context_;\r
+       \r
+       std::array<tbb::concurrent_unordered_map<size_t, safe_ptr<buffer_pool<device_buffer>>>, 4> device_pools_;\r
+       std::array<tbb::concurrent_unordered_map<size_t, safe_ptr<buffer_pool<host_buffer>>>, 2> host_pools_;\r
+       \r
+       unsigned int fbo_;\r
+\r
+       executor executor_;\r
+                               \r
+public:                \r
        ogl_device();\r
+       ~ogl_device();\r
+\r
+       // Not thread-safe, must be called inside of context\r
+       void enable(GLenum cap);\r
+       void disable(GLenum cap);\r
+       void viewport(size_t x, size_t y, size_t width, size_t height);\r
+       void scissor(size_t x, size_t y, size_t width, size_t height);\r
+       void stipple_pattern(const GLubyte* pattern);\r
+\r
+       void attach(device_buffer& texture);\r
+       void clear(device_buffer& texture);\r
+\r
+       void begin_read(host_buffer& dest, device_buffer& source);\r
+       void begin_read(device_buffer& dest, host_buffer& source);\r
+\r
+       void blend_func(int c1, int c2, int a1, int a2);\r
+       void blend_func(int c1, int c2);\r
+       \r
+       void use(shader& shader);\r
 \r
+       void flush();\r
+\r
+       // thread-afe\r
        template<typename Func>\r
-       auto begin_invoke(Func&& func) -> boost::unique_future<decltype(func())> // noexcept\r
+       auto begin_invoke(Func&& func, task_priority priority = normal_priority) -> boost::unique_future<decltype(func())> // noexcept\r
        {                       \r
-               return executor_.begin_invoke(std::forward<Func>(func));\r
+               return executor_.begin_invoke(std::forward<Func>(func), priority);\r
        }\r
        \r
        template<typename Func>\r
-       auto invoke(Func&& func) -> decltype(func())\r
+       auto invoke(Func&& func, task_priority priority = normal_priority) -> decltype(func())\r
        {\r
-               return executor_.invoke(std::forward<Func>(func));\r
+               return executor_.invoke(std::forward<Func>(func), priority);\r
        }\r
                \r
        safe_ptr<device_buffer> create_device_buffer(size_t width, size_t height, size_t stride);\r
        safe_ptr<host_buffer> create_host_buffer(size_t size, host_buffer::usage_t usage);\r
+       \r
+       void yield();\r
+       boost::unique_future<void> gc();\r
+\r
+       static std::wstring get_version();\r
 \r
 private:\r
-       executor executor_;\r
-       std::unique_ptr<sf::Context> context_;\r
-       \r
-       std::array<tbb::concurrent_unordered_map<size_t, tbb::concurrent_bounded_queue<std::shared_ptr<device_buffer>>>, 4> device_pools_;\r
-       std::array<tbb::concurrent_unordered_map<size_t, tbb::concurrent_bounded_queue<std::shared_ptr<host_buffer>>>, 2> host_pools_;\r
+       safe_ptr<device_buffer> allocate_device_buffer(size_t width, size_t height, size_t stride);\r
+       safe_ptr<host_buffer> allocate_host_buffer(size_t size, host_buffer::usage_t usage);\r
 };\r
 \r
 }}
\ No newline at end of file