#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 "../gpu/gpu_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 <boost/cast.hpp>\r
-\r
-#include <Glee.h>\r
-#include <SFML/Window/Context.hpp>\r
+#include <gl/glew.h>\r
\r
-#include <array>\r
-#include <unordered_map>\r
+#include <boost/foreach.hpp>\r
+#include <boost/range/algorithm_ext/erase.hpp>\r
\r
-namespace caspar { namespace mixer {\r
- \r
-struct image_mixer::implementation : boost::noncopyable\r
-{ \r
- const core::video_format_desc format_desc_;\r
- \r
- std::stack<core::image_transform> transform_stack_;\r
+#include <algorithm>\r
+#include <deque>\r
\r
- GLuint fbo_;\r
- std::array<std::shared_ptr<device_buffer>, 2> render_targets_;\r
+using namespace boost::assign;\r
\r
- std::shared_ptr<host_buffer> reading_;\r
+namespace caspar { namespace core {\r
+ \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
- image_kernel kernel_;\r
+typedef std::pair<blend_mode::type, std::vector<item>> layer;\r
\r
- safe_ptr<ogl_device> context_;\r
- std::shared_ptr<device_buffer> key_;\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
- , context_(ogl_device::create())\r
+ image_renderer(video_channel_context& channel)\r
+ : channel_(channel)\r
{\r
- context_->invoke([]\r
+ }\r
+ \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
- if(!GLEE_VERSION_3_0)\r
- BOOST_THROW_EXCEPTION(not_supported() << msg_info("Missing OpenGL 3.0 support."));\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_mixer_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
+ active_buffer_ = draw_buffer;\r
+\r
+ channel_.ogl().flush(); // NOTE: This is important, otherwise fences will deadlock.\r
+ \r
+ return host_buffer;\r
+ }\r
+\r
+ void draw(std::vector<layer>&& layers, \r
+ safe_ptr<device_buffer>& draw_buffer)\r
+ {\r
+ std::shared_ptr<device_buffer> layer_key_buffer;\r
+\r
+ BOOST_FOREACH(auto& layer, layers)\r
+ draw_layer(std::move(layer), draw_buffer, layer_key_buffer);\r
+ }\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
+ 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
+ auto layer_draw_buffer = create_mixer_buffer(4);\r
+\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
- context_->begin_invoke([=]\r
+ draw_mixer_buffer(layer_draw_buffer, std::move(local_mix_buffer), blend_mode::normal); \r
+ draw_mixer_buffer(draw_buffer, std::move(layer_draw_buffer), layer.first);\r
+ }\r
+ else // fast path\r
{\r
- transform_stack_.push(core::image_transform());\r
- transform_stack_.top().set_mode(core::video_mode::progressive);\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_mixer_buffer(draw_buffer, std::move(local_mix_buffer), blend_mode::normal);\r
+ } \r
+\r
+ std::swap(local_key_buffer, layer_key_buffer);\r
+ }\r
\r
- GL(glEnable(GL_TEXTURE_2D));\r
- GL(glDisable(GL_DEPTH_TEST)); \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
+ if(item.transform.is_key)\r
+ {\r
+ local_key_buffer = local_key_buffer ? local_key_buffer : create_mixer_buffer(1);\r
+\r
+ draw_params.background = local_key_buffer;\r
+ draw_params.local_key = nullptr;\r
+ draw_params.layer_key = nullptr;\r
+\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_mixer_buffer(4);\r
\r
- render_targets_[0] = context_->create_device_buffer(format_desc.width, format_desc.height, 4);\r
- render_targets_[1] = context_->create_device_buffer(format_desc.width, format_desc.height, 4);\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
+ draw_params.keyer = keyer::additive;\r
+\r
+ kernel_.draw(channel_.ogl(), std::move(draw_params));\r
+ }\r
+ else\r
+ {\r
+ draw_mixer_buffer(draw_buffer, std::move(local_mix_buffer), blend_mode::normal);\r
\r
- GL(glGenFramebuffers(1, &fbo_)); \r
- GL(glBindFramebuffer(GL_FRAMEBUFFER_EXT, fbo_));\r
- GL(glReadBuffer(GL_COLOR_ATTACHMENT0_EXT));\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
- reading_ = context_->create_host_buffer(format_desc_.size, host_buffer::read_only);\r
- });\r
+ kernel_.draw(channel_.ogl(), std::move(draw_params));\r
+ } \r
}\r
\r
- ~implementation()\r
+ void draw_mixer_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_mixer_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
- glDeleteFramebuffersEXT(1, &fbo_);\r
}\r
\r
- void begin(const core::basic_frame& frame)\r
+ void begin_layer(blend_mode::type blend_mode)\r
{\r
- transform_stack_.push(transform_stack_.top()*frame.get_image_transform());\r
+ layers_.push_back(std::make_pair(blend_mode, std::vector<item>()));\r
}\r
\r
- void visit(core::write_frame& frame)\r
+ void begin(core::basic_frame& frame)\r
{\r
- auto gpu_frame = boost::polymorphic_downcast<gpu_write_frame*>(&frame);\r
- auto desc = gpu_frame->get_pixel_format_desc();\r
- auto buffers = gpu_frame->get_plane_buffers();\r
- auto is_key_frame = gpu_frame->get_image_transform().get_is_key();\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
- auto transform = transform_stack_.top();\r
- context_->begin_invoke([=]\r
- {\r
- std::vector<safe_ptr<device_buffer>> device_buffers;\r
- for(size_t n = 0; n < buffers.size(); ++n)\r
- {\r
- auto texture = context_->create_device_buffer(desc.planes[n].width, desc.planes[n].height, desc.planes[n].channels);\r
- texture->read(*buffers[n]);\r
- device_buffers.push_back(texture);\r
- }\r
- \r
- if(is_key_frame) // Its a key_frame just bind the texture for use during the next frame.\r
- {\r
- if(!device_buffers.empty()) \r
- key_ = device_buffers[0]; \r
- }\r
- else\r
- {\r
- for(size_t n = 0; n < buffers.size(); ++n)\r
- {\r
- GL(glActiveTexture(GL_TEXTURE0+n));\r
- device_buffers[n]->bind();\r
- }\r
- \r
- if(key_)\r
- {\r
- GL(glActiveTexture(GL_TEXTURE0+3));\r
- key_->bind();\r
- }\r
-\r
- GL(glColor4d(1.0, 1.0, 1.0, transform.get_opacity()));\r
- GL(glViewport(0, 0, format_desc_.width, format_desc_.height));\r
- kernel_.apply(desc, transform, key_ != nullptr);\r
- \r
- auto m_p = transform.get_key_translation();\r
- auto m_s = transform.get_key_scale();\r
- double w = static_cast<double>(format_desc_.width);\r
- double h = static_cast<double>(format_desc_.height);\r
- \r
- GL(glEnable(GL_SCISSOR_TEST));\r
- GL(glScissor(static_cast<size_t>(m_p[0]*w), static_cast<size_t>(m_p[1]*h), static_cast<size_t>(m_s[0]*w), static_cast<size_t>(m_s[1]*h)));\r
- \r
- auto f_p = transform.get_fill_translation();\r
- auto f_s = transform.get_fill_scale();\r
- \r
- glBegin(GL_QUADS);\r
- glTexCoord2d(0.0, 0.0); glVertex2d( f_p[0] *2.0-1.0, f_p[1] *2.0-1.0);\r
- glTexCoord2d(1.0, 0.0); glVertex2d((f_p[0]+f_s[0])*2.0-1.0, f_p[1] *2.0-1.0);\r
- glTexCoord2d(1.0, 1.0); glVertex2d((f_p[0]+f_s[0])*2.0-1.0, (f_p[1]+f_s[1])*2.0-1.0);\r
- glTexCoord2d(0.0, 1.0); glVertex2d( f_p[0] *2.0-1.0, (f_p[1]+f_s[1])*2.0-1.0);\r
- glEnd();\r
- GL(glDisable(GL_SCISSOR_TEST));\r
- \r
- key_ = nullptr;\r
- }\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
+ layers_.back().second.push_back(item);\r
}\r
\r
void end()\r
{\r
- transform_stack_.pop();\r
+ transform_stack_.pop_back();\r
}\r
\r
- boost::unique_future<safe_ptr<const host_buffer>> begin_pass()\r
- {\r
- return context_->begin_invoke([=]() -> safe_ptr<const host_buffer>\r
- {\r
- reading_->map();\r
- render_targets_[0]->attach(0);\r
- GL(glClear(GL_COLOR_BUFFER_BIT));\r
- return safe_ptr<const host_buffer>(reading_);\r
- });\r
+ void end_layer()\r
+ { \r
}\r
-\r
- void end_pass()\r
+ \r
+ boost::unique_future<safe_ptr<host_buffer>> render()\r
{\r
- context_->begin_invoke([=]\r
- {\r
- reading_ = context_->create_host_buffer(format_desc_.size, host_buffer::read_only);\r
- render_targets_[0]->write(*reading_);\r
- std::rotate(render_targets_.begin(), render_targets_.begin() + 1, render_targets_.end());\r
- });\r
+ return renderer_.render(std::move(layers_));\r
}\r
- \r
- std::vector<safe_ptr<host_buffer>> create_buffers(const core::pixel_format_desc& format)\r
+\r
+ safe_ptr<write_frame> create_frame(const 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 context_->create_host_buffer(plane.size, host_buffer::write_only);\r
- });\r
- return buffers;\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::begin_pass(){ return impl_->begin_pass();}\r
-void image_mixer::end_pass(){impl_->end_pass();}\r
-std::vector<safe_ptr<host_buffer>> image_mixer::create_buffers(const core::pixel_format_desc& format){return impl_->create_buffers(format);}\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