#include <core/producer/frame/pixel_format.h>\r
#include <core/video_format.h>\r
\r
-#include <boost/cast.hpp>\r
+#include <boost/foreach.hpp>\r
\r
#include <Glee.h>\r
#include <SFML/Window/Context.hpp>\r
\r
GLuint fbo_;\r
std::array<std::shared_ptr<device_buffer>, 2> render_targets_;\r
+ std::shared_ptr<device_buffer> key_target_;\r
+ bool is_key_;\r
\r
std::shared_ptr<host_buffer> reading_;\r
\r
image_kernel kernel_;\r
\r
- std::shared_ptr<device_buffer> key_;\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
+ \r
+ std::vector<render_item> waiting_queue_;\r
+ std::vector<render_item> render_queue_;\r
+\r
public:\r
implementation(const core::video_format_desc& format_desc) \r
: format_desc_(format_desc)\r
+ , is_key_(false)\r
{\r
ogl_device::invoke([]\r
{\r
\r
GL(glEnable(GL_TEXTURE_2D));\r
GL(glDisable(GL_DEPTH_TEST)); \r
-\r
+ \r
+ key_target_ = ogl_device::create_device_buffer(format_desc.width, format_desc.height, 4);\r
render_targets_[0] = ogl_device::create_device_buffer(format_desc.width, format_desc.height, 4);\r
render_targets_[1] = ogl_device::create_device_buffer(format_desc.width, format_desc.height, 4);\r
\r
}\r
\r
void visit(core::write_frame& frame)\r
- {\r
- auto gpu_frame = boost::polymorphic_downcast<gpu_write_frame*>(&frame);\r
+ { \r
+ auto gpu_frame = dynamic_cast<gpu_write_frame*>(&frame);\r
+ if(!gpu_frame)\r
+ return;\r
+ \r
auto desc = gpu_frame->get_pixel_format_desc();\r
auto buffers = gpu_frame->get_plane_buffers();\r
-\r
auto transform = transform_stack_.top();\r
+\r
ogl_device::begin_invoke([=]\r
{\r
- std::vector<safe_ptr<device_buffer>> device_buffers;\r
+ render_item item;\r
+\r
+ item.desc = desc;\r
+ item.transform = transform;\r
+ \r
for(size_t n = 0; n < buffers.size(); ++n)\r
{\r
+ GL(glActiveTexture(GL_TEXTURE0+n));\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
- device_buffers.push_back(texture);\r
- }\r
- \r
- if(transform.get_is_key()) // Its a key_frame just save buffer for 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
+ item.textures.push_back(texture);\r
+ } \r
+\r
+ waiting_queue_.push_back(item);\r
});\r
}\r
\r
transform_stack_.pop();\r
}\r
\r
- boost::unique_future<safe_ptr<const host_buffer>> begin_pass()\r
+ boost::unique_future<safe_ptr<const host_buffer>> render()\r
{\r
- return ogl_device::begin_invoke([=]() -> safe_ptr<const host_buffer>\r
+ auto result = ogl_device::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
+ reading_->map(); // Might block.\r
+ return make_safe(reading_);\r
});\r
- }\r
-\r
- void end_pass()\r
- {\r
+ \r
ogl_device::begin_invoke([=]\r
{\r
+ is_key_ = false;\r
+\r
+ // Clear and bind frame-buffers.\r
+\r
+ key_target_->attach();\r
+ GL(glClear(GL_COLOR_BUFFER_BIT)); \r
+\r
+ render_targets_[0]->attach();\r
+ GL(glClear(GL_COLOR_BUFFER_BIT));\r
+\r
+ // Render items.\r
+\r
+ BOOST_FOREACH(auto item, render_queue_)\r
+ render(item); \r
+\r
+ // Move waiting items to queue.\r
+\r
+ render_queue_ = std::move(waiting_queue_);\r
+\r
+ // Start read-back.\r
+\r
reading_ = ogl_device::create_host_buffer(format_desc_.size, host_buffer::read_only);\r
+ render_targets_[0]->attach();\r
render_targets_[0]->write(*reading_);\r
- std::rotate(render_targets_.begin(), render_targets_.begin() + 1, render_targets_.end());\r
+ std::swap(render_targets_[0], render_targets_[1]);\r
});\r
+\r
+ return std::move(result);\r
}\r
- \r
+\r
+ void render(const render_item& item)\r
+ { \r
+ const auto desc = item.desc;\r
+ auto textures = item.textures;\r
+ const auto transform = item.transform;\r
+ \r
+ // Bind textures\r
+\r
+ for(size_t n = 0; n < textures.size(); ++n)\r
+ {\r
+ GL(glActiveTexture(GL_TEXTURE0+n));\r
+ textures[n]->bind();\r
+ } \r
+\r
+ // Setup key and kernel\r
+\r
+ bool has_separate_key = false;\r
+\r
+ if(transform.get_is_key())\r
+ {\r
+ if(!is_key_)\r
+ {\r
+ key_target_->attach();\r
+ is_key_ = true;\r
+ GL(glClear(GL_COLOR_BUFFER_BIT)); \r
+ }\r
+ } \r
+ else\r
+ { \r
+ if(is_key_)\r
+ {\r
+ has_separate_key = true;\r
+ is_key_ = false;\r
+\r
+ render_targets_[0]->attach(); \r
+ GL(glActiveTexture(GL_TEXTURE0+3));\r
+ key_target_->bind();\r
+ } \r
+ } \r
+\r
+ // Draw\r
+\r
+ kernel_.draw(format_desc_.width, format_desc_.height, desc, transform, has_separate_key); \r
+ }\r
+ \r
std::vector<safe_ptr<host_buffer>> create_buffers(const core::pixel_format_desc& format)\r
{\r
std::vector<safe_ptr<host_buffer>> buffers;\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
+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
\r
}}
\ No newline at end of file