-#include "../../StdAfx.h"\r
+/*\r
+* copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
+*\r
+* This file is part of CasparCG.\r
+*\r
+* CasparCG is free software: you can redistribute it and/or modify\r
+* it under the terms of the GNU General Public License as published by\r
+* the Free Software Foundation, either version 3 of the License, or\r
+* (at your option) any later version.\r
+*\r
+* CasparCG is distributed in the hope that it will be useful,\r
+* but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+* GNU General Public License for more details.\r
+\r
+* You should have received a copy of the GNU General Public License\r
+* along with CasparCG. If not, see <http://www.gnu.org/licenses/>.\r
+*\r
+*/\r
+#include "../../stdafx.h"\r
\r
#include "image_mixer.h"\r
#include "image_kernel.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/concurrency/executor.h>\r
\r
-#include <Glee.h>\r
-#include <SFML/Window/Context.hpp>\r
+#include <core/producer/frame/image_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.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
-image_transform& image_transform::operator*=(const image_transform &other)\r
-{\r
- alpha *= other.alpha;\r
- mode = other.mode;\r
- gain *= other.gain;\r
- uv.get<0>() += other.uv.get<0>();\r
- uv.get<1>() += other.uv.get<1>();\r
- uv.get<2>() += other.uv.get<2>();\r
- uv.get<3>() += other.uv.get<3>();\r
- pos.get<0>() += other.pos.get<0>();\r
- pos.get<1>() += other.pos.get<1>();\r
- return *this;\r
-}\r
-\r
-const image_transform image_transform::operator*(const image_transform &other) const\r
-{\r
- return image_transform(*this) *= other;\r
-}\r
-\r
struct image_mixer::implementation : boost::noncopyable\r
-{ \r
- const video_format_desc format_desc_;\r
- \r
- std::stack<image_transform> transform_stack_;\r
-\r
- GLuint fbo_;\r
- std::array<std::shared_ptr<device_buffer>, 2> render_targets_;\r
+{ \r
+ typedef std::deque<render_item> layer;\r
\r
- std::shared_ptr<host_buffer> reading_;\r
+ video_channel_context& channel_;\r
\r
- image_kernel kernel_;\r
+ std::vector<image_transform> transform_stack_;\r
+ std::vector<video_mode::type> mode_stack_;\r
\r
- ogl_device context_;\r
+ std::deque<std::deque<render_item>> layers_; // layer/stream/items\r
+ \r
+ image_kernel kernel_;\r
+ \r
+ std::shared_ptr<device_buffer> draw_buffer_;\r
\r
+ std::shared_ptr<device_buffer> local_key_buffer_;\r
+ std::shared_ptr<device_buffer> layer_key_buffer_;\r
+ \r
public:\r
- implementation(const video_format_desc& format_desc) \r
- : format_desc_(format_desc)\r
+ implementation(video_channel_context& video_channel) \r
+ : channel_(video_channel)\r
+ , transform_stack_(1)\r
+ , mode_stack_(1, video_mode::progressive)\r
{\r
- context_.begin_invoke([=]\r
- {\r
- transform_stack_.push(image_transform());\r
- transform_stack_.top().mode = video_mode::progressive;\r
- transform_stack_.top().uv = boost::make_tuple(0.0, 1.0, 1.0, 0.0);\r
-\r
- GL(glEnable(GL_TEXTURE_2D));\r
- GL(glDisable(GL_DEPTH_TEST)); \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
- \r
- GL(glGenFramebuffers(1, &fbo_)); \r
- GL(glBindFramebuffer(GL_FRAMEBUFFER_EXT, fbo_));\r
- GL(glReadBuffer(GL_COLOR_ATTACHMENT0_EXT));\r
-\r
- reading_ = context_.create_host_buffer(format_desc_.size, host_buffer::read_only);\r
- });\r
}\r
\r
~implementation()\r
{\r
- glDeleteFramebuffersEXT(1, &fbo_);\r
+ channel_.ogl().gc();\r
}\r
-\r
- void begin(const image_transform& transform)\r
+ \r
+ void begin(core::basic_frame& frame)\r
{\r
- transform_stack_.push(transform_stack_.top()*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 render(const pixel_format_desc& desc, std::vector<safe_ptr<host_buffer>>& buffers)\r
- {\r
- auto transform = transform_stack_.top();\r
- context_.begin_invoke([=]\r
- {\r
- GL(glLoadIdentity());\r
- GL(glTranslated(transform.pos.get<0>()*2.0, transform.pos.get<1>()*2.0, 0.0));\r
- GL(glColor4d(1.0, 1.0, 1.0, transform.alpha));\r
- GL(glViewport(0, 0, format_desc_.width, format_desc_.height));\r
- kernel_.apply(desc.pix_fmt, transform);\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
+ void visit(core::write_frame& frame)\r
+ { \r
+ CASPAR_ASSERT(!layers_.empty());\r
\r
- for(size_t n = 0; n < buffers.size(); ++n)\r
- {\r
- glActiveTexture(GL_TEXTURE0+n);\r
- device_buffers[n]->bind();\r
- }\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 t = transform;\r
- glBegin(GL_QUADS);\r
- glTexCoord2d(t.uv.get<0>(), t.uv.get<3>()); glVertex2d(-1.0, -1.0);\r
- glTexCoord2d(t.uv.get<2>(), t.uv.get<3>()); glVertex2d( 1.0, -1.0);\r
- glTexCoord2d(t.uv.get<2>(), t.uv.get<1>()); glVertex2d( 1.0, 1.0);\r
- glTexCoord2d(t.uv.get<0>(), t.uv.get<1>()); glVertex2d(-1.0, 1.0);\r
- glEnd();\r
- });\r
+ auto& layer = layers_.back();\r
+\r
+ if(boost::range::find(layer, item) == 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
- boost::unique_future<safe_ptr<const host_buffer>> begin_pass()\r
+ void begin_layer()\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
+ layers_.push_back(layer());\r
}\r
\r
- void end_pass()\r
+ void end_layer()\r
{\r
- context_.begin_invoke([=]\r
+ }\r
+ \r
+ boost::unique_future<safe_ptr<host_buffer>> render()\r
+ { \r
+ auto layers = std::move(layers_);\r
+ return channel_.ogl().begin_invoke([=]()mutable\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
+ return render(std::move(layers));\r
});\r
}\r
+ \r
+ safe_ptr<host_buffer> render(std::deque<layer>&& layers)\r
+ {\r
+ draw_buffer_ = channel_.ogl().create_device_buffer(channel_.get_format_desc().width, channel_.get_format_desc().height, 4); \r
+ channel_.ogl().clear(*draw_buffer_);\r
+ \r
+ BOOST_FOREACH(auto& layer, layers)\r
+ draw(std::move(layer));\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
- std::vector<safe_ptr<host_buffer>> create_buffers(const pixel_format_desc& format)\r
+ GL(glFlush());\r
+ \r
+ return host_buffer;\r
+ }\r
+\r
+ void draw(layer&& layer)\r
+ { \r
+ BOOST_FOREACH(auto& item, layer)\r
+ draw(std::move(item));\r
+ \r
+ std::swap(local_key_buffer_, layer_key_buffer_);\r
+ }\r
+\r
+ void draw(render_item&& item)\r
+ { \r
+ if(item.transform.get_is_key())\r
+ {\r
+ if(!local_key_buffer_)\r
+ {\r
+ local_key_buffer_ = channel_.ogl().create_device_buffer(channel_.get_format_desc().width, channel_.get_format_desc().height, 1);\r
+ channel_.ogl().clear(*local_key_buffer_);\r
+ }\r
+\r
+ draw(local_key_buffer_, std::move(item), nullptr, nullptr);\r
+ }\r
+ else\r
+ {\r
+ draw(draw_buffer_, std::move(item), local_key_buffer_, layer_key_buffer_); \r
+ local_key_buffer_.reset();\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
- std::vector<safe_ptr<host_buffer>> buffers;\r
- std::transform(format.planes.begin(), format.planes.end(), std::back_inserter(buffers), [&](const pixel_format_desc::plane& plane) -> safe_ptr<host_buffer>\r
+ if(!std::all_of(item.textures.begin(), item.textures.end(), std::mem_fn(&device_buffer::ready)))\r
{\r
- return context_.create_host_buffer(plane.size, host_buffer::write_only);\r
- });\r
- return buffers;\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
+ 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(), tag, desc);\r
}\r
};\r
\r
-image_mixer::image_mixer(const video_format_desc& format_desc) : impl_(new implementation(format_desc)){}\r
-void image_mixer::begin(const image_transform& transform) { impl_->begin(transform);}\r
-void image_mixer::process(const pixel_format_desc& desc, std::vector<safe_ptr<host_buffer>>& buffers){ impl_->render(desc, buffers);}\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 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(){impl_->begin_layer();}\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