#include <core/producer/frame/pixel_format.h>\r
#include <core/video_format.h>\r
\r
+#include <gl/glew.h>\r
+\r
#include <boost/foreach.hpp>\r
+#include <boost/range.hpp>\r
+#include <boost/range/algorithm/find.hpp>\r
\r
#include <algorithm>\r
#include <array>\r
+#include <deque>\r
#include <unordered_map>\r
\r
namespace caspar { namespace core {\r
\r
-struct render_item\r
-{\r
- pixel_format_desc desc;\r
- std::vector<safe_ptr<device_buffer>> textures;\r
- core::image_transform transform;\r
- int tag;\r
-};\r
-\r
-bool operator==(const render_item& lhs, const render_item& rhs)\r
-{\r
- return lhs.textures == rhs.textures && lhs.transform == rhs.transform && lhs.tag == rhs.tag;\r
-}\r
-\r
struct image_mixer::implementation : boost::noncopyable\r
{ \r
+ typedef std::deque<render_item> layer;\r
+\r
video_channel_context& channel_;\r
- \r
- std::stack<core::image_transform> transform_stack_;\r
\r
- std::queue<std::queue<std::deque<render_item>>> render_queue_; // layer/stream/items\r
+ std::vector<image_transform> transform_stack_;\r
+ std::vector<video_mode::type> mode_stack_;\r
+\r
+ std::deque<std::deque<render_item>> layers_; // layer/stream/items\r
\r
- std::unique_ptr<image_kernel> kernel_;\r
+ image_kernel kernel_;\r
\r
- std::shared_ptr<device_buffer> draw_buffer_[2];\r
+ std::shared_ptr<device_buffer> draw_buffer_;\r
std::shared_ptr<device_buffer> write_buffer_;\r
\r
- std::shared_ptr<device_buffer> stream_key_buffer_[2];\r
+ std::shared_ptr<device_buffer> local_key_buffer_;\r
std::shared_ptr<device_buffer> layer_key_buffer_;\r
\r
public:\r
implementation(video_channel_context& video_channel) \r
: channel_(video_channel)\r
+ , transform_stack_(1)\r
+ , mode_stack_(1, video_mode::progressive)\r
{\r
initialize_buffers();\r
- transform_stack_.push(core::image_transform());\r
-\r
- channel_.ogl().invoke([=]\r
- {\r
- if(!GLEE_VERSION_3_0)\r
- CASPAR_LOG(warning) << "Missing OpenGL 3.0 support.";//BOOST_THROW_EXCEPTION(not_supported() << msg_info("Missing OpenGL 3.0 support."));\r
-\r
- kernel_.reset(new image_kernel());\r
- });\r
}\r
\r
~implementation()\r
{\r
write_buffer_ = channel_.ogl().create_device_buffer(channel_.get_format_desc().width, channel_.get_format_desc().height, 4);\r
layer_key_buffer_ = channel_.ogl().create_device_buffer(channel_.get_format_desc().width, channel_.get_format_desc().height, 1);\r
- draw_buffer_[0] = channel_.ogl().create_device_buffer(channel_.get_format_desc().width, channel_.get_format_desc().height, 4);\r
- draw_buffer_[1] = channel_.ogl().create_device_buffer(channel_.get_format_desc().width, channel_.get_format_desc().height, 4);\r
- stream_key_buffer_[0] = channel_.ogl().create_device_buffer(channel_.get_format_desc().width, channel_.get_format_desc().height, 1);\r
- stream_key_buffer_[1] = channel_.ogl().create_device_buffer(channel_.get_format_desc().width, channel_.get_format_desc().height, 1);\r
+ draw_buffer_ = channel_.ogl().create_device_buffer(channel_.get_format_desc().width, channel_.get_format_desc().height, 4);\r
+ local_key_buffer_ = channel_.ogl().create_device_buffer(channel_.get_format_desc().width, channel_.get_format_desc().height, 1);\r
+ channel_.ogl().gc();\r
}\r
\r
void begin(core::basic_frame& frame)\r
{\r
- transform_stack_.push(transform_stack_.top()*frame.get_image_transform());\r
+ transform_stack_.push_back(transform_stack_.back()*frame.get_image_transform());\r
+ mode_stack_.push_back(frame.get_mode() == video_mode::progressive ? mode_stack_.back() : frame.get_mode());\r
}\r
\r
void visit(core::write_frame& frame)\r
- { \r
- if(frame.get_textures().empty())\r
- return;\r
+ { \r
+ CASPAR_ASSERT(!layers_.empty());\r
\r
- render_item item = {frame.get_pixel_format_desc(), frame.get_textures(), transform_stack_.top()*frame.get_image_transform(), frame.tag()}; \r
+ // Check if frame has been discarded by interlacing\r
+ if(boost::range::find(mode_stack_, video_mode::upper) != mode_stack_.end() && boost::range::find(mode_stack_, video_mode::lower) != mode_stack_.end())\r
+ return;\r
+ \r
+ core::render_item item(frame.get_pixel_format_desc(), frame.get_textures(), transform_stack_.back(), mode_stack_.back(), frame.tag()); \r
\r
- auto& layer = render_queue_.back();\r
+ auto& layer = layers_.back();\r
\r
- if(layer.empty() || (!layer.back().empty() && layer.back().back().tag != frame.tag()))\r
- layer.push(std::deque<render_item>());\r
- \r
- auto& stream = layer.back();\r
- \r
- if(std::find(stream.begin(), stream.end(), item) == stream.end())\r
- stream.push_back(item);\r
+ auto it = boost::range::find(layer, item);\r
+ if(it == layer.end())\r
+ layer.push_back(item);\r
}\r
\r
void end()\r
{\r
- transform_stack_.pop();\r
+ transform_stack_.pop_back();\r
+ mode_stack_.pop_back();\r
}\r
\r
void begin_layer()\r
{\r
- render_queue_.push(std::queue<std::deque<render_item>>());\r
+ layers_.push_back(layer());\r
}\r
\r
void end_layer()\r
{\r
}\r
\r
- safe_ptr<host_buffer> render()\r
+ boost::unique_future<safe_ptr<host_buffer>> render()\r
{ \r
- auto render_queue = std::move(render_queue_);\r
-\r
- return channel_.ogl().invoke([=]() mutable -> safe_ptr<host_buffer>\r
- { \r
- if(channel_.get_format_desc().width != write_buffer_->width() || channel_.get_format_desc().height != write_buffer_->height())\r
- initialize_buffers();\r
-\r
- return do_render(std::move(render_queue));\r
- });\r
+ auto layers = std::move(layers_);\r
+ return channel_.ogl().begin_invoke([=]()mutable{return render(std::move(layers));});\r
}\r
\r
- safe_ptr<host_buffer> do_render(std::queue<std::queue<std::deque<render_item>>>&& render_queue)\r
+ safe_ptr<host_buffer> render(std::deque<layer>&& layers)\r
{\r
- auto read_buffer = channel_.ogl().create_host_buffer(channel_.get_format_desc().size, host_buffer::read_only);\r
-\r
- layer_key_buffer_->clear();\r
- draw_buffer_[0]->clear();\r
- draw_buffer_[1]->clear();\r
- stream_key_buffer_[0]->clear();\r
- stream_key_buffer_[1]->clear();\r
-\r
- bool local_key = false;\r
+ if(channel_.get_format_desc().width != write_buffer_->width() || channel_.get_format_desc().height != write_buffer_->height())\r
+ initialize_buffers();\r
+ \r
+ channel_.ogl().clear(*layer_key_buffer_);\r
+ channel_.ogl().clear(*local_key_buffer_);\r
+ channel_.ogl().clear(*draw_buffer_);\r
+ \r
bool layer_key = false;\r
+ \r
+ BOOST_FOREACH(auto& layer, layers)\r
+ draw(std::move(layer), layer_key);\r
\r
- while(!render_queue.empty())\r
- { \r
- stream_key_buffer_[0]->clear();\r
-\r
- auto layer = std::move(render_queue.front());\r
- render_queue.pop();\r
-\r
- while(!layer.empty())\r
- {\r
- auto stream = std::move(layer.front());\r
- layer.pop();\r
- \r
- render(stream, local_key, layer_key);\r
- \r
- local_key = stream.front().transform.get_is_key();\r
- if(!local_key)\r
- stream_key_buffer_[0]->clear();\r
-\r
- channel_.ogl().yield();\r
- }\r
+ std::swap(draw_buffer_, write_buffer_);\r
+ \r
+ auto host_buffer = channel_.ogl().create_host_buffer(channel_.get_format_desc().size, host_buffer::read_only);\r
+ \r
+ channel_.ogl().attach(*write_buffer_);\r
+ host_buffer->begin_read(write_buffer_->width(), write_buffer_->height(), format(write_buffer_->stride()));\r
+ \r
+ GL(glFlush());\r
\r
- layer_key = local_key;\r
- local_key = false;\r
- std::swap(stream_key_buffer_[0], layer_key_buffer_);\r
- }\r
+ return host_buffer;\r
+ }\r
\r
- std::swap(draw_buffer_[0], write_buffer_);\r
+ void draw(layer&& layer, bool& layer_key)\r
+ { \r
+ bool local_key = false;\r
+ \r
+ channel_.ogl().clear(*local_key_buffer_);\r
\r
- // Start transfer from device to host. \r
- write_buffer_->write(*read_buffer);\r
+ BOOST_FOREACH(auto& item, layer)\r
+ draw(std::move(item), local_key, layer_key);\r
+ \r
+ layer_key = local_key;\r
\r
- return read_buffer;\r
+ std::swap(local_key_buffer_, layer_key_buffer_);\r
}\r
\r
- void render(std::deque<render_item>& stream, bool local_key, bool layer_key)\r
- {\r
- CASPAR_ASSERT(!stream.empty());\r
- \r
- if(stream.front().transform.get_is_key())\r
+ void draw(render_item&& item, bool& local_key, bool& layer_key)\r
+ { \r
+ if(item.transform.get_is_key())\r
{\r
- stream_key_buffer_[1]->attach();\r
- \r
- BOOST_FOREACH(auto item2, stream)\r
- { \r
- kernel_->draw(channel_.get_format_desc().width, channel_.get_format_desc().height, item2.desc, item2.transform, item2.textures, \r
- make_safe(stream_key_buffer_[0]), nullptr, nullptr);\r
- }\r
-\r
- std::swap(stream_key_buffer_[0], stream_key_buffer_[1]);\r
-\r
- stream_key_buffer_[1]->bind();\r
- glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, channel_.get_format_desc().width, channel_.get_format_desc().height); \r
+ draw(local_key_buffer_, std::move(item), nullptr, nullptr);\r
+ local_key = true;\r
}\r
else\r
{\r
- draw_buffer_[1]->attach(); \r
- \r
- BOOST_FOREACH(auto item2, stream)\r
- { \r
- kernel_->draw(channel_.get_format_desc().width, channel_.get_format_desc().height, item2.desc, item2.transform, item2.textures, \r
- make_safe(draw_buffer_[0]), local_key ? stream_key_buffer_[0] : nullptr, layer_key ? layer_key_buffer_ : nullptr); \r
- }\r
-\r
- std::swap(draw_buffer_[0], draw_buffer_[1]);\r
- \r
- draw_buffer_[1]->bind();\r
- glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, channel_.get_format_desc().width, channel_.get_format_desc().height);\r
+ draw(draw_buffer_, std::move(item), local_key ? local_key_buffer_ : nullptr, layer_key ? layer_key_buffer_ : nullptr); \r
+ channel_.ogl().clear(*local_key_buffer_);\r
+ local_key = false;\r
}\r
}\r
+ \r
+ void draw(std::shared_ptr<device_buffer>& target, render_item&& item, const std::shared_ptr<device_buffer>& local_key, const std::shared_ptr<device_buffer>& layer_key)\r
+ {\r
+ if(!std::all_of(item.textures.begin(), item.textures.end(), std::mem_fn(&device_buffer::ready)))\r
+ {\r
+ CASPAR_LOG(warning) << L"[image_mixer] Performance warning. Host to device transfer not complete, GPU will be stalled";\r
+ channel_.ogl().yield(); // Try to give it some more time.\r
+ } \r
+\r
+ channel_.ogl().attach(*target);\r
+ kernel_.draw(channel_.ogl(), std::move(item), make_safe(target), local_key, layer_key);\r
+ }\r
\r
safe_ptr<write_frame> create_frame(const void* tag, const core::pixel_format_desc& desc)\r
{\r
- return make_safe<write_frame>(channel_.ogl(), reinterpret_cast<int>(tag), desc);\r
+ return make_safe<write_frame>(channel_.ogl(), tag, desc);\r
}\r
};\r
\r
void image_mixer::begin(core::basic_frame& frame){impl_->begin(frame);}\r
void image_mixer::visit(core::write_frame& frame){impl_->visit(frame);}\r
void image_mixer::end(){impl_->end();}\r
-safe_ptr<host_buffer> image_mixer::render(){return impl_->render();}\r
+boost::unique_future<safe_ptr<host_buffer>> image_mixer::render(){return impl_->render();}\r
safe_ptr<write_frame> image_mixer::create_frame(const void* tag, const core::pixel_format_desc& desc){return impl_->create_frame(tag, desc);}\r
void image_mixer::begin_layer(){impl_->begin_layer();}\r
void image_mixer::end_layer(){impl_->end_layer();}\r
projects / casparcg / blobdiff