#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 "../write_frame.h"\r
\r
#include <common/concurrency/executor.h>\r
#include <common/exception/exceptions.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 <boost/foreach.hpp>\r
\r
#include <array>\r
#include <unordered_map>\r
\r
-namespace caspar { namespace mixer {\r
+namespace caspar { namespace core {\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
+{ \r
+ static const size_t LOCAL_KEY_INDEX = 3;\r
+ static const size_t LAYER_KEY_INDEX = 4;\r
\r
- GLuint fbo_;\r
- std::array<std::shared_ptr<device_buffer>, 2> render_targets_;\r
-\r
- std::shared_ptr<host_buffer> reading_;\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
+ const core::video_format_desc format_desc_;\r
+ \r
+ std::stack<core::image_transform> transform_stack_;\r
+ std::queue<std::queue<render_item>> render_queue_;\r
+ \r
image_kernel kernel_;\r
+ \r
+ ogl_device& ogl_;\r
+ \r
+ safe_ptr<host_buffer> read_buffer_;\r
+ safe_ptr<device_buffer> draw_buffer_;\r
+ safe_ptr<device_buffer> write_buffer_;\r
\r
- safe_ptr<ogl_device> context_;\r
+ safe_ptr<device_buffer> local_key_buffer_;\r
+ safe_ptr<device_buffer> layer_key_buffer_;\r
\r
+ bool local_key_;\r
+ bool layer_key_;\r
+ \r
public:\r
- implementation(const core::video_format_desc& format_desc) \r
+ implementation(const core::video_format_desc& format_desc, ogl_device& ogl) \r
: format_desc_(format_desc)\r
- , context_(ogl_device::create())\r
+ , ogl_(ogl)\r
+ , read_buffer_(ogl_.create_host_buffer(format_desc_.size, host_buffer::read_only))\r
+ , draw_buffer_(ogl_.create_device_buffer(format_desc.width, format_desc.height, 4))\r
+ , write_buffer_ (ogl_.create_device_buffer(format_desc.width, format_desc.height, 4))\r
+ , local_key_buffer_(ogl_.create_device_buffer(format_desc.width, format_desc.height, 1))\r
+ , layer_key_buffer_(ogl_.create_device_buffer(format_desc.width, format_desc.height, 1))\r
+ , local_key_(false)\r
+ , layer_key_(false)\r
{\r
- context_->invoke([]\r
- {\r
- if(!GLEE_VERSION_3_0)\r
- BOOST_THROW_EXCEPTION(not_supported() << msg_info("Missing OpenGL 3.0 support."));\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
+ }\r
\r
- context_->begin_invoke([=]\r
- {\r
- transform_stack_.push(core::image_transform());\r
- transform_stack_.top().set_mode(core::video_mode::progressive);\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
+ 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
\r
- ~implementation()\r
+ void end()\r
{\r
- glDeleteFramebuffersEXT(1, &fbo_);\r
+ transform_stack_.pop();\r
}\r
\r
- void begin(const core::basic_frame& frame)\r
+ void begin_layer()\r
{\r
- transform_stack_.push(transform_stack_.top()*frame.get_image_transform());\r
+ render_queue_.push(std::queue<render_item>());\r
}\r
- \r
- void visit(core::write_frame& frame)\r
+\r
+ void end_layer()\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
+ }\r
\r
- auto transform = transform_stack_.top();\r
- context_->begin_invoke([=]\r
+ boost::unique_future<safe_ptr<host_buffer>> render()\r
+ { \r
+ auto read_buffer = read_buffer_;\r
+ auto result = ogl_.begin_invoke([=]() -> safe_ptr<host_buffer>\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);\r
+ read_buffer->map();\r
+ return read_buffer;\r
+ });\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
+ auto render_queue = std::move(render_queue_);\r
+\r
+ ogl_.begin_invoke([=]() mutable\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
- for(size_t n = 0; n < buffers.size(); ++n)\r
+ // Draw items in device.\r
+\r
+ while(!render_queue.empty())\r
{\r
- GL(glActiveTexture(GL_TEXTURE0+n));\r
- device_buffers[n]->bind();\r
+ auto layer = render_queue.front();\r
+ render_queue.pop();\r
+ \r
+ draw_buffer_->attach(); \r
+\r
+ while(!layer.empty())\r
+ {\r
+ draw(layer.front());\r
+ layer.pop();\r
+ 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
- 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
+ std::swap(draw_buffer_, write_buffer_);\r
+\r
+ // Start transfer from device to host. \r
+ read_buffer_ = ogl_.create_host_buffer(format_desc_.size, host_buffer::read_only); \r
+ write_buffer_->write(*read_buffer_);\r
});\r
- }\r
\r
- void end()\r
- {\r
- transform_stack_.pop();\r
+ return std::move(result);\r
}\r
+ \r
+ void draw(const render_item& item)\r
+ { \r
+ // Bind textures\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(); // Open host buffer for reading.\r
- render_targets_[0]->attach(0); // Render to the next target\r
- GL(glClear(GL_COLOR_BUFFER_BIT)); // Clear the new target\r
- return make_safe(reading_);\r
- });\r
- }\r
+ for(size_t n = 0; n < item.textures.size(); ++n)\r
+ item.textures[n]->bind(n); \r
\r
- void end_pass()\r
- {\r
- context_->begin_invoke([=]\r
+ // Setup key and kernel\r
+\r
+ bool local_key = false;\r
+ bool layer_key = false;\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
- reading_ = context_->create_host_buffer(format_desc_.size, host_buffer::read_only); // Create a new host buffer.\r
- render_targets_[0]->write(*reading_); // Move data to host buffer.\r
- std::rotate(render_targets_.begin(), render_targets_.begin() + 1, render_targets_.end()); // Set new render target.\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
+\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
+\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
}\r
- \r
- std::vector<safe_ptr<host_buffer>> create_buffers(const core::pixel_format_desc& format)\r
+ \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 context_->create_host_buffer(plane.size, host_buffer::write_only);\r
- });\r
- return buffers;\r
+ return make_safe<write_frame>(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(const core::video_format_desc& format_desc, ogl_device& ogl) : impl_(new implementation(format_desc, ogl)){}\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::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(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
}}
\ No newline at end of file
projects / casparcg / blobdiff