#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
\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
+\r
struct render_item\r
{\r
- core::pixel_format_desc desc;\r
+ pixel_format_desc desc;\r
std::vector<safe_ptr<device_buffer>> textures;\r
- core::image_transform transform;\r
+ core::image_transform transform;\r
};\r
\r
- const core::video_format_desc format_desc_;\r
+ video_channel_context& channel_;\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
+ std::queue<std::queue<render_item>> render_queue_;\r
\r
image_kernel kernel_;\r
\r
safe_ptr<host_buffer> read_buffer_;\r
- \r
safe_ptr<device_buffer> draw_buffer_;\r
safe_ptr<device_buffer> write_buffer_;\r
\r
\r
bool local_key_;\r
bool layer_key_;\r
-\r
+ \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
+ 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
{\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
- ogl_device::begin_invoke([=]\r
- {\r
- render_item item;\r
-\r
- item.desc = desc;\r
- item.transform = transform;\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
+ { \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
\r
void end()\r
\r
void begin_layer()\r
{\r
- ogl_device::begin_invoke([=]\r
- {\r
- transferring_queue_.push_back(std::vector<render_item>());\r
- });\r
+ render_queue_.push(std::queue<render_item>());\r
}\r
\r
void end_layer()\r
{\r
}\r
\r
- boost::unique_future<safe_ptr<const host_buffer>> render()\r
+ void reinitialize_buffers()\r
{\r
- auto result = ogl_device::begin_invoke([=]() -> safe_ptr<const host_buffer>\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
+\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
{\r
- read_buffer_->map(); // Might block.\r
- return read_buffer_;\r
+ read_buffer->map();\r
+ return read_buffer;\r
});\r
- \r
- ogl_device::begin_invoke([=]\r
+\r
+ auto render_queue = std::move(render_queue_);\r
+\r
+ channel_.ogl().begin_invoke([=]() mutable\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
\r
\r
// Draw items in device.\r
\r
- BOOST_FOREACH(auto layer, render_queue_)\r
+ while(!render_queue.empty())\r
{\r
+ auto layer = render_queue.front();\r
+ render_queue.pop();\r
+ \r
draw_buffer_->attach(); \r
\r
- BOOST_FOREACH(auto item, layer) \r
- draw(item); \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
+\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
}\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
-\r
std::swap(draw_buffer_, write_buffer_);\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
\r
- return std::move(result);\r
+ return std::move(result.get());\r
}\r
\r
void draw(const render_item& item)\r
- { \r
+ { \r
// Bind textures\r
\r
for(size_t n = 0; n < item.textures.size(); ++n)\r
bool local_key = false;\r
bool layer_key = false;\r
\r
- if(item.transform.get_is_key())\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_)\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\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
\r
- if(local_key_)\r
+ if(local_key_) // Use local key if we have it.\r
{\r
- local_key_buffer_->bind(3);\r
+ local_key_buffer_->bind(LOCAL_KEY_INDEX);\r
draw_buffer_->attach(); \r
- local_key_ = false;\r
+ local_key_ = false; // Use it only one time.\r
} \r
\r
- if(layer_key_)\r
- layer_key_buffer_->bind(4);\r
+ if(layer_key_) // Use layer key if we have it.\r
+ layer_key_buffer_->bind(LAYER_KEY_INDEX);\r
} \r
\r
// Draw\r
\r
- kernel_.draw(format_desc_.width, format_desc_.height, item.desc, item.transform, local_key, layer_key); \r
+ kernel_.draw(channel_.get_format_desc().width, channel_.get_format_desc().height, item.desc, item.transform, local_key, layer_key); \r
}\r
\r
- std::vector<safe_ptr<host_buffer>> create_buffers(const core::pixel_format_desc& format)\r
+ safe_ptr<write_frame> create_frame(void* tag, const core::pixel_format_desc& desc)\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 make_safe<write_frame>(channel_.ogl(), reinterpret_cast<int>(tag), desc);\r
}\r
};\r
\r
-image_mixer::image_mixer(const core::video_format_desc& format_desc) : impl_(new implementation(format_desc)){}\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::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
+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
void image_mixer::end_layer(){impl_->end_layer();}\r
\r
projects / casparcg / blobdiff