#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
+#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
\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
- struct render_item\r
- {\r
- core::pixel_format_desc desc;\r
- std::vector<safe_ptr<device_buffer>> textures;\r
- core::image_transform transform;\r
- };\r
+using namespace boost::assign;\r
\r
- const core::video_format_desc format_desc_;\r
- \r
- std::stack<core::image_transform> transform_stack_;\r
- std::vector<std::vector<render_item>> transferring_queue_;\r
- std::vector<std::vector<render_item>> render_queue_;\r
- \r
- image_kernel kernel_;\r
- \r
- safe_ptr<host_buffer> read_buffer_;\r
+namespace caspar { namespace core {\r
\r
- safe_ptr<device_buffer> draw_buffer_;\r
- safe_ptr<device_buffer> write_buffer_;\r
-\r
- safe_ptr<device_buffer> local_key_buffer_;\r
- safe_ptr<device_buffer> layer_key_buffer_;\r
+struct layer\r
+{\r
+ std::vector<render_item> items;\r
+ blend_mode::type blend_mode;\r
\r
- bool local_key_;\r
- bool layer_key_;\r
+ layer(blend_mode::type blend_mode) : blend_mode(blend_mode)\r
+ {\r
+ }\r
+};\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(const core::video_format_desc& format_desc) \r
- : format_desc_(format_desc)\r
- , read_buffer_(ogl_device::create_host_buffer(format_desc_.size, host_buffer::read_only))\r
- , draw_buffer_(ogl_device::create_device_buffer(format_desc.width, format_desc.height, 4))\r
- , write_buffer_ (ogl_device::create_device_buffer(format_desc.width, format_desc.height, 4))\r
- , local_key_buffer_(ogl_device::create_device_buffer(format_desc.width, format_desc.height, 1))\r
- , layer_key_buffer_(ogl_device::create_device_buffer(format_desc.width, 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
- void visit(core::write_frame& frame)\r
- { \r
- auto desc = frame.get_pixel_format_desc();\r
- auto buffers = frame.get_plane_buffers();\r
- auto transform = transform_stack_.top()*frame.get_image_transform();\r
+ \r
+private:\r
+ safe_ptr<host_buffer> do_render(std::vector<layer>&& layers)\r
+ {\r
+ std::shared_ptr<device_buffer> layer_key_buffer;\r
\r
- ogl_device::begin_invoke([=]\r
- {\r
- render_item item;\r
+ auto draw_buffer = create_device_buffer(4);\r
+ \r
+ BOOST_FOREACH(auto& layer, layers)\r
+ draw_layer(std::move(layer), draw_buffer, layer_key_buffer);\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
+ active_buffer_ = draw_buffer;\r
\r
- item.desc = desc;\r
- item.transform = transform;\r
+ channel_.ogl().flush(); // NOTE: This is important, otherwise fences will deadlock.\r
\r
- // Start transfer from host to device.\r
-\r
- for(size_t n = 0; n < buffers.size(); ++n)\r
- {\r
- auto texture = ogl_device::create_device_buffer(desc.planes[n].width, desc.planes[n].height, desc.planes[n].channels);\r
- texture->read(*buffers[n]);\r
- item.textures.push_back(texture);\r
- } \r
-\r
- transferring_queue_.back().push_back(item);\r
- });\r
+ return host_buffer;\r
}\r
\r
- void end()\r
- {\r
- transform_stack_.pop();\r
- }\r
+ void draw_layer(layer&& layer, const safe_ptr<device_buffer>& draw_buffer, std::shared_ptr<device_buffer>& layer_key_buffer)\r
+ { \r
+ if(layer.items.empty())\r
+ return;\r
\r
- void begin_layer()\r
- {\r
- ogl_device::begin_invoke([=]\r
+ std::pair<int, std::shared_ptr<device_buffer>> local_key_buffer = std::make_pair(0, nullptr); // int is fields flag\r
+ \r
+ if(layer.blend_mode != blend_mode::normal && has_overlapping_items(layer))\r
{\r
- transferring_queue_.push_back(std::vector<render_item>());\r
- });\r
- }\r
+ auto layer_draw_buffer = create_device_buffer(4); // int is fields flag\r
\r
- void end_layer()\r
- {\r
+ BOOST_FOREACH(auto& item, layer.items)\r
+ draw_item(std::move(item), *layer_draw_buffer, local_key_buffer, layer_key_buffer); \r
+ \r
+ render_item item;\r
+ item.pix_desc.pix_fmt = pixel_format::bgra;\r
+ item.pix_desc.planes = list_of(pixel_format_desc::plane(channel_.get_format_desc().width, channel_.get_format_desc().height, 4));\r
+ item.textures = list_of(layer_draw_buffer);\r
+ item.transform = frame_transform();\r
+ item.blend_mode = layer.blend_mode;\r
+\r
+ kernel_.draw(channel_.ogl(), std::move(item), *draw_buffer, nullptr, nullptr);\r
+ }\r
+ else // fast path\r
+ {\r
+ BOOST_FOREACH(auto& item, layer.items) \r
+ draw_item(std::move(item), *draw_buffer, local_key_buffer, layer_key_buffer); \r
+ } \r
+\r
+ CASPAR_ASSERT(local_key_buffer.first == 0 || local_key_buffer.first == core::field_mode::progressive);\r
+\r
+ std::swap(local_key_buffer.second, layer_key_buffer);\r
}\r
\r
- boost::unique_future<safe_ptr<const host_buffer>> render()\r
- {\r
- auto result = ogl_device::begin_invoke([=]() -> safe_ptr<const host_buffer>\r
+ void draw_item(render_item&& item, \r
+ device_buffer& draw_buffer, \r
+ std::pair<int, std::shared_ptr<device_buffer>>& local_key_buffer, \r
+ std::shared_ptr<device_buffer>& layer_key_buffer)\r
+ { \r
+ if(item.transform.is_key)\r
{\r
- read_buffer_->map(); // Might block.\r
- return read_buffer_;\r
- });\r
+ if(!local_key_buffer.second)\r
+ {\r
+ local_key_buffer.first = 0;\r
+ local_key_buffer.second = create_device_buffer(1);\r
+ }\r
\r
- ogl_device::begin_invoke([=]\r
+ local_key_buffer.first |= item.transform.field_mode; // Add field to flag.\r
+ kernel_.draw(channel_.ogl(), std::move(item), *local_key_buffer.second, nullptr, nullptr);\r
+ }\r
+ else\r
{\r
- local_key_ = false;\r
- layer_key_ = false;\r
-\r
- // Clear buffers.\r
- local_key_buffer_->clear();\r
- layer_key_buffer_->clear();\r
- draw_buffer_->clear();\r
-\r
- // Draw items in device.\r
-\r
- BOOST_FOREACH(auto layer, render_queue_)\r
+ kernel_.draw(channel_.ogl(), std::move(item), draw_buffer, local_key_buffer.second, layer_key_buffer);\r
+ local_key_buffer.first ^= item.transform.field_mode; // Remove field from flag.\r
+ \r
+ if(local_key_buffer.first == 0) // If all fields from key has been used, reset it\r
{\r
- draw_buffer_->attach(); \r
-\r
- BOOST_FOREACH(auto item, layer) \r
- draw(item); \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
-\r
- std::swap(local_key_buffer_, layer_key_buffer_);\r
+ local_key_buffer.first = 0;\r
+ local_key_buffer.second.reset();\r
}\r
+ }\r
+ }\r
\r
- // Move waiting items to queue.\r
-\r
- render_queue_ = std::move(transferring_queue_);\r
-\r
- // Start transfer from device to host.\r
-\r
- read_buffer_ = ogl_device::create_host_buffer(format_desc_.size, host_buffer::read_only);\r
- draw_buffer_->write(*read_buffer_);\r
+ bool has_overlapping_items(const layer& layer)\r
+ { \r
+ auto upper_count = boost::range::count_if(layer.items, [&](const render_item& item)\r
+ {\r
+ return !item.transform.is_key && (item.transform.field_mode & field_mode::upper);\r
+ });\r
\r
- std::swap(draw_buffer_, write_buffer_);\r
+ auto lower_count = boost::range::count_if(layer.items, [&](const render_item& item)\r
+ {\r
+ return !item.transform.is_key && (item.transform.field_mode & field_mode::lower);\r
});\r
\r
- return std::move(result);\r
+ return upper_count > 1 || lower_count > 1;\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
- 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
+};\r
\r
- bool local_key = false;\r
- bool layer_key = false;\r
\r
- if(item.transform.get_is_key())\r
- {\r
- if(!local_key_)\r
- {\r
- local_key_buffer_->clear();\r
- local_key_buffer_->attach();\r
- local_key_ = true;\r
- }\r
- } \r
- else\r
- { \r
- local_key = local_key_;\r
- layer_key = layer_key_;\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
- if(local_key_)\r
- {\r
- local_key_buffer_->bind(3);\r
- draw_buffer_->attach(); \r
- local_key_ = false;\r
- } \r
+ void begin_layer(blend_mode::type blend_mode)\r
+ {\r
+ layers_.push_back(layer(blend_mode));\r
+ }\r
+ \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(transform_stack_.back().field_mode == field_mode::empty)\r
+ return;\r
+ \r
+ core::render_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_)\r
- layer_key_buffer_->bind(4);\r
- } \r
+ layers_.back().items.push_back(item);\r
+ }\r
\r
- // Draw\r
+ void end()\r
+ {\r
+ transform_stack_.pop_back();\r
+ }\r
\r
- kernel_.draw(format_desc_.width, format_desc_.height, item.desc, item.transform, local_key, layer_key); \r
+ void end_layer()\r
+ { \r
}\r
- \r
- std::vector<safe_ptr<host_buffer>> create_buffers(const core::pixel_format_desc& format)\r
+ \r
+ boost::unique_future<safe_ptr<host_buffer>> render()\r
{\r
- std::vector<safe_ptr<host_buffer>> buffers;\r
- std::transform(format.planes.begin(), format.planes.end(), std::back_inserter(buffers), [&](const core::pixel_format_desc::plane& plane)\r
- {\r
- return ogl_device::create_host_buffer(plane.size, host_buffer::write_only);\r
- });\r
- return buffers;\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>(ogl_, tag, desc);\r
}\r
};\r
\r
-image_mixer::image_mixer(const core::video_format_desc& format_desc) : impl_(new implementation(format_desc)){}\r
-void image_mixer::begin(const core::basic_frame& frame){impl_->begin(frame);}\r
+image_mixer::image_mixer(video_channel_context& video_channel) : impl_(new implementation(video_channel)){}\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
-boost::unique_future<safe_ptr<const host_buffer>> image_mixer::render(){return impl_->render();}\r
-std::vector<safe_ptr<host_buffer>> image_mixer::create_buffers(const core::pixel_format_desc& format){return impl_->create_buffers(format);}\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
+ impl_ = std::move(other.impl_);\r
+ return *this;\r
+}\r
\r
}}
\ No newline at end of file
projects / casparcg / blobdiff