#include "../../stdafx.h"\r
\r
#include "image_mixer.h"\r
-#include "image_kernel.h"\r
\r
+#include "image_kernel.h"\r
+#include "../write_frame.h"\r
#include "../gpu/ogl_device.h"\r
#include "../gpu/host_buffer.h"\r
#include "../gpu/device_buffer.h"\r
-#include "../write_frame.h"\r
-\r
#include "../../video_channel_context.h"\r
\r
-#include <common/concurrency/executor.h>\r
#include <common/exception/exceptions.h>\r
#include <common/gl/gl_check.h>\r
+#include <common/utility/move_on_copy.h>\r
\r
-#include <core/producer/frame/image_transform.h>\r
+#include <core/producer/frame/frame_transform.h>\r
#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/algorithm_ext/erase.hpp>\r
\r
-#include <array>\r
-#include <unordered_map>\r
+#include <algorithm>\r
+#include <deque>\r
\r
-namespace caspar { namespace core {\r
- \r
-struct image_mixer::implementation : boost::noncopyable\r
-{ \r
- static const size_t LOCAL_KEY_INDEX = 3;\r
- static const size_t LAYER_KEY_INDEX = 4;\r
+using namespace boost::assign;\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
- };\r
-\r
- video_channel_context& channel_;\r
- \r
- std::stack<core::image_transform> transform_stack_;\r
- std::queue<std::queue<render_item>> render_queue_;\r
+namespace caspar { namespace core {\r
\r
- image_kernel kernel_;\r
- \r
- safe_ptr<host_buffer> read_buffer_;\r
- safe_ptr<device_buffer> draw_buffer_;\r
- safe_ptr<device_buffer> write_buffer_;\r
+struct item\r
+{\r
+ pixel_format_desc pix_desc;\r
+ std::vector<safe_ptr<device_buffer>> textures;\r
+ frame_transform transform;\r
+};\r
\r
- safe_ptr<device_buffer> local_key_buffer_;\r
- safe_ptr<device_buffer> layer_key_buffer_;\r
+typedef std::pair<blend_mode::type, std::vector<item>> layer;\r
\r
- bool local_key_;\r
- bool layer_key_;\r
- \r
+class image_renderer\r
+{\r
+ video_channel_context& channel_; \r
+ image_kernel kernel_; \r
+ std::shared_ptr<device_buffer> active_buffer_;\r
public:\r
- implementation(video_channel_context& video_channel) \r
- : channel_(video_channel)\r
- , read_buffer_(video_channel.ogl().create_host_buffer(video_channel.get_format_desc().size, host_buffer::read_only))\r
- , draw_buffer_(video_channel.ogl().create_device_buffer(video_channel.get_format_desc().width, channel_.get_format_desc().height, 4))\r
- , write_buffer_ (video_channel.ogl().create_device_buffer(video_channel.get_format_desc().width, channel_.get_format_desc().height, 4))\r
- , local_key_buffer_(video_channel.ogl().create_device_buffer(video_channel.get_format_desc().width, channel_.get_format_desc().height, 1))\r
- , layer_key_buffer_(video_channel.ogl().create_device_buffer(video_channel.get_format_desc().width, channel_.get_format_desc().height, 1))\r
- , local_key_(false)\r
- , layer_key_(false)\r
+ image_renderer(video_channel_context& channel)\r
+ : channel_(channel)\r
{\r
- transform_stack_.push(core::image_transform());\r
}\r
\r
- void begin(const core::basic_frame& frame)\r
- {\r
- transform_stack_.push(transform_stack_.top()*frame.get_image_transform());\r
+ boost::unique_future<safe_ptr<host_buffer>> render(std::vector<layer>&& layers)\r
+ { \r
+ auto layers2 = make_move_on_copy(std::move(layers));\r
+ return channel_.ogl().begin_invoke([=]\r
+ {\r
+ return do_render(std::move(layers2.value));\r
+ });\r
}\r
+ \r
+private:\r
+ safe_ptr<host_buffer> do_render(std::vector<layer>&& layers)\r
+ {\r
+ auto draw_buffer = create_device_buffer(4);\r
+\r
+ if(channel_.get_format_desc().field_mode != field_mode::progressive)\r
+ {\r
+ auto upper = layers;\r
+ auto lower = std::move(layers);\r
+\r
+ BOOST_FOREACH(auto& layer, upper)\r
+ {\r
+ boost::remove_erase_if(layer.second, [](const item& item){return !(item.transform.field_mode & field_mode::upper);});\r
+ BOOST_FOREACH(auto& item, layer.second)\r
+ item.transform.field_mode = field_mode::upper;\r
+ }\r
+\r
+ BOOST_FOREACH(auto& layer, lower)\r
+ {\r
+ boost::remove_erase_if(layer.second, [](const item& item){return !(item.transform.field_mode & field_mode::lower);});\r
+ BOOST_FOREACH(auto& item, layer.second)\r
+ item.transform.field_mode = field_mode::lower;\r
+ }\r
+\r
+ draw(std::move(upper), draw_buffer);\r
+ draw(std::move(lower), draw_buffer);\r
+ }\r
+ else\r
+ {\r
+ draw(std::move(layers), draw_buffer);\r
+ }\r
+\r
+ auto host_buffer = channel_.ogl().create_host_buffer(channel_.get_format_desc().size, host_buffer::read_only);\r
+ channel_.ogl().attach(*draw_buffer);\r
+ host_buffer->begin_read(draw_buffer->width(), draw_buffer->height(), format(draw_buffer->stride()));\r
\r
- void visit(core::write_frame& frame)\r
- { \r
- render_item item = {frame.get_pixel_format_desc(), frame.get_textures(), transform_stack_.top()*frame.get_image_transform()}; \r
- render_queue_.back().push(item);\r
- }\r
+ active_buffer_ = draw_buffer;\r
\r
- void end()\r
- {\r
- transform_stack_.pop();\r
+ channel_.ogl().flush(); // NOTE: This is important, otherwise fences will deadlock.\r
+ \r
+ return host_buffer;\r
}\r
\r
- void begin_layer()\r
+ void draw(std::vector<layer>&& layers, \r
+ safe_ptr<device_buffer>& draw_buffer)\r
{\r
- render_queue_.push(std::queue<render_item>());\r
- }\r
+ std::shared_ptr<device_buffer> layer_key_buffer;\r
\r
- void end_layer()\r
- {\r
+ BOOST_FOREACH(auto& layer, layers)\r
+ draw_layer(std::move(layer), draw_buffer, layer_key_buffer);\r
}\r
\r
- void reinitialize_buffers()\r
- {\r
- read_buffer_ = channel_.ogl().create_host_buffer(channel_.get_format_desc().size, host_buffer::read_only);\r
- draw_buffer_ = channel_.ogl().create_device_buffer(channel_.get_format_desc().width, channel_.get_format_desc().height, 4);\r
- write_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
- layer_key_buffer_ = channel_.ogl().create_device_buffer(channel_.get_format_desc().width, channel_.get_format_desc().height, 1);\r
- channel_.ogl().gc();\r
- }\r
+ void draw_layer(layer&& layer, \r
+ safe_ptr<device_buffer>& draw_buffer,\r
+ std::shared_ptr<device_buffer>& layer_key_buffer)\r
+ { \r
+ if(layer.second.empty())\r
+ return;\r
\r
- safe_ptr<host_buffer> render()\r
- { \r
- auto read_buffer = read_buffer_;\r
- auto result = channel_.ogl().begin_invoke([=]() -> safe_ptr<host_buffer>\r
+ std::shared_ptr<device_buffer> local_key_buffer;\r
+ std::shared_ptr<device_buffer> local_mix_buffer;\r
+ \r
+ if(layer.first != blend_mode::normal && layer.second.size() > 1)\r
{\r
- read_buffer->map();\r
- return read_buffer;\r
- });\r
-\r
- auto render_queue = std::move(render_queue_);\r
+ auto layer_draw_buffer = create_device_buffer(4);\r
\r
- channel_.ogl().begin_invoke([=]() mutable\r
+ BOOST_FOREACH(auto& item, layer.second)\r
+ draw_item(std::move(item), layer_draw_buffer, layer_key_buffer, local_key_buffer, local_mix_buffer); \r
+ \r
+ draw_device_buffer(layer_draw_buffer, std::move(local_mix_buffer), blend_mode::normal); \r
+ draw_device_buffer(draw_buffer, std::move(layer_draw_buffer), layer.first);\r
+ }\r
+ else // fast path\r
{\r
- if(draw_buffer_->width() != channel_.get_format_desc().width || draw_buffer_->height() != channel_.get_format_desc().height)\r
- reinitialize_buffers();\r
-\r
- local_key_ = false;\r
- layer_key_ = false;\r
+ BOOST_FOREACH(auto& item, layer.second) \r
+ draw_item(std::move(item), draw_buffer, layer_key_buffer, local_key_buffer, local_mix_buffer); \r
+ \r
+ draw_device_buffer(draw_buffer, std::move(local_mix_buffer), blend_mode::normal);\r
+ } \r
\r
- // Clear buffers.\r
- local_key_buffer_->clear();\r
- layer_key_buffer_->clear();\r
- draw_buffer_->clear();\r
+ std::swap(local_key_buffer, layer_key_buffer);\r
+ }\r
\r
- // Draw items in device.\r
+ void draw_item(item&& item, \r
+ safe_ptr<device_buffer>& draw_buffer, \r
+ std::shared_ptr<device_buffer>& layer_key_buffer, \r
+ std::shared_ptr<device_buffer>& local_key_buffer, \r
+ std::shared_ptr<device_buffer>& local_mix_buffer)\r
+ { \r
+ draw_params draw_params;\r
+ draw_params.pix_desc = std::move(item.pix_desc);\r
+ draw_params.textures = std::move(item.textures);\r
+ draw_params.transform = std::move(item.transform);\r
\r
- while(!render_queue.empty())\r
- {\r
- auto layer = render_queue.front();\r
- render_queue.pop();\r
- \r
- draw_buffer_->attach(); \r
+ if(item.transform.is_key)\r
+ {\r
+ local_key_buffer = local_key_buffer ? local_key_buffer : create_device_buffer(1);\r
\r
- while(!layer.empty())\r
- {\r
- draw(layer.front());\r
- layer.pop();\r
- channel_.ogl().yield(); // Allow quick buffer allocation to execute.\r
- }\r
+ draw_params.background = local_key_buffer;\r
+ draw_params.local_key = nullptr;\r
+ draw_params.layer_key = nullptr;\r
\r
- layer_key_ = local_key_; // If there was only key in last layer then use it as key for the entire next layer.\r
- local_key_ = false;\r
+ kernel_.draw(channel_.ogl(), std::move(draw_params));\r
+ }\r
+ else if(item.transform.is_mix)\r
+ {\r
+ local_mix_buffer = local_mix_buffer ? local_mix_buffer : create_device_buffer(4);\r
\r
- std::swap(local_key_buffer_, layer_key_buffer_);\r
- }\r
+ draw_params.background = local_mix_buffer;\r
+ draw_params.local_key = std::move(local_key_buffer);\r
+ draw_params.layer_key = layer_key_buffer;\r
\r
- std::swap(draw_buffer_, write_buffer_);\r
+ draw_params.keyer = keyer::additive;\r
\r
- // Start transfer from device to host. \r
- read_buffer_ = channel_.ogl().create_host_buffer(channel_.get_format_desc().size, host_buffer::read_only); \r
- write_buffer_->write(*read_buffer_);\r
- });\r
+ kernel_.draw(channel_.ogl(), std::move(draw_params));\r
+ }\r
+ else\r
+ {\r
+ draw_device_buffer(draw_buffer, std::move(local_mix_buffer), blend_mode::normal);\r
+ \r
+ draw_params.background = draw_buffer;\r
+ draw_params.local_key = std::move(local_key_buffer);\r
+ draw_params.layer_key = layer_key_buffer;\r
\r
- return std::move(result.get());\r
+ kernel_.draw(channel_.ogl(), std::move(draw_params));\r
+ } \r
}\r
- \r
- void draw(const render_item& item)\r
- { \r
- // Bind textures\r
\r
- for(size_t n = 0; n < item.textures.size(); ++n)\r
- item.textures[n]->bind(n); \r
-\r
- // Setup key and kernel\r
+ void draw_device_buffer(safe_ptr<device_buffer>& draw_buffer, std::shared_ptr<device_buffer>&& source_buffer, blend_mode::type blend_mode = blend_mode::normal)\r
+ {\r
+ if(!source_buffer)\r
+ return;\r
+\r
+ draw_params draw_params;\r
+ draw_params.pix_desc.pix_fmt = pixel_format::bgra;\r
+ draw_params.pix_desc.planes = list_of(pixel_format_desc::plane(source_buffer->width(), source_buffer->height(), 4));\r
+ draw_params.textures = list_of(source_buffer);\r
+ draw_params.transform = frame_transform();\r
+ draw_params.blend_mode = blend_mode;\r
+ draw_params.background = draw_buffer;\r
+\r
+ kernel_.draw(channel_.ogl(), std::move(draw_params));\r
+ }\r
+ \r
+ safe_ptr<device_buffer> create_device_buffer(size_t stride)\r
+ {\r
+ auto buffer = channel_.ogl().create_device_buffer(channel_.get_format_desc().width, channel_.get_format_desc().height, stride);\r
+ channel_.ogl().clear(*buffer);\r
+ return buffer;\r
+ }\r
+};\r
+ \r
+struct image_mixer::implementation : boost::noncopyable\r
+{ \r
+ ogl_device& ogl_;\r
+ image_renderer renderer_;\r
+ std::vector<frame_transform> transform_stack_;\r
+ std::vector<layer> layers_; // layer/stream/items\r
+public:\r
+ implementation(video_channel_context& video_channel) \r
+ : ogl_(video_channel.ogl())\r
+ , renderer_(video_channel)\r
+ , transform_stack_(1) \r
+ {\r
+ }\r
\r
- bool local_key = false;\r
- bool layer_key = false;\r
+ void begin_layer(blend_mode::type blend_mode)\r
+ {\r
+ layers_.push_back(std::make_pair(blend_mode, std::vector<item>()));\r
+ }\r
\r
- if(item.transform.get_is_key()) // This is a key frame, render it to the local_key buffer for later use.\r
- {\r
- if(!local_key_) // Initialize local-key if it is not active.\r
- {\r
- local_key_buffer_->clear();\r
- local_key_buffer_->attach();\r
- local_key_ = true;\r
- }\r
- } \r
- else // This is a normal frame. Use key buffers if they are active.\r
- { \r
- local_key = local_key_;\r
- layer_key = layer_key_;\r
+ void begin(core::basic_frame& frame)\r
+ {\r
+ transform_stack_.push_back(transform_stack_.back()*frame.get_frame_transform());\r
+ }\r
+ \r
+ void visit(core::write_frame& frame)\r
+ { \r
+ if(frame.get_frame_transform().field_mode == field_mode::empty)\r
+ return;\r
\r
- if(local_key_) // Use local key if we have it.\r
- {\r
- local_key_buffer_->bind(LOCAL_KEY_INDEX);\r
- draw_buffer_->attach(); \r
- local_key_ = false; // Use it only one time.\r
- } \r
+ item item;\r
+ item.pix_desc = frame.get_pixel_format_desc();\r
+ item.textures = frame.get_textures();\r
+ item.transform = transform_stack_.back();\r
\r
- if(layer_key_) // Use layer key if we have it.\r
- layer_key_buffer_->bind(LAYER_KEY_INDEX);\r
- } \r
+ layers_.back().second.push_back(item);\r
+ }\r
\r
- // Draw\r
+ void end()\r
+ {\r
+ transform_stack_.pop_back();\r
+ }\r
\r
- kernel_.draw(channel_.get_format_desc().width, channel_.get_format_desc().height, item.desc, item.transform, local_key, layer_key); \r
+ void end_layer()\r
+ { \r
}\r
- \r
- safe_ptr<write_frame> create_frame(void* tag, const core::pixel_format_desc& desc)\r
+ \r
+ boost::unique_future<safe_ptr<host_buffer>> render()\r
+ {\r
+ return renderer_.render(std::move(layers_));\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>(ogl_, tag, desc);\r
}\r
};\r
\r
image_mixer::image_mixer(video_channel_context& video_channel) : impl_(new implementation(video_channel)){}\r
-void image_mixer::begin(const core::basic_frame& frame){impl_->begin(frame);}\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
-safe_ptr<write_frame> image_mixer::create_frame(void* tag, const core::pixel_format_desc& desc){return impl_->create_frame(tag, desc);}\r
-void image_mixer::begin_layer(){impl_->begin_layer();}\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(blend_mode::type blend_mode){impl_->begin_layer(blend_mode);}\r
void image_mixer::end_layer(){impl_->end_layer();}\r
image_mixer& image_mixer::operator=(image_mixer&& other)\r
{\r
projects / casparcg / blobdiff