video_channel_context& channel_;\r
\r
std::vector<image_transform> transform_stack_;\r
- std::vector<video_mode::type> mode_stack_;\r
- std::stack<blend_mode::type> blend_stack_;\r
+ std::vector<video_mode::type> video_mode_stack_;\r
+ std::stack<blend_mode::type> blend_mode_stack_;\r
\r
std::deque<std::deque<render_item>> layers_; // layer/stream/items\r
\r
implementation(video_channel_context& video_channel) \r
: channel_(video_channel)\r
, transform_stack_(1)\r
- , mode_stack_(1, video_mode::progressive)\r
+ , video_mode_stack_(1, video_mode::progressive)\r
{\r
}\r
\r
void begin(core::basic_frame& frame)\r
{\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
+ video_mode_stack_.push_back(frame.get_mode() == video_mode::progressive ? video_mode_stack_.back() : frame.get_mode());\r
}\r
\r
void visit(core::write_frame& frame)\r
CASPAR_ASSERT(!layers_.empty());\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
+ if(boost::range::find(video_mode_stack_, video_mode::upper) != video_mode_stack_.end() && boost::range::find(video_mode_stack_, video_mode::lower) != video_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(), blend_stack_.top()); \r
+ core::render_item item;\r
+ item.pix_desc = frame.get_pixel_format_desc();\r
+ item.textures = frame.get_textures();\r
+ item.transform = transform_stack_.back();\r
+ item.mode = video_mode_stack_.back();\r
+ item.tag = frame.tag();\r
+ item.blend_mode = blend_mode_stack_.top(); \r
\r
auto& layer = layers_.back();\r
-\r
if(boost::range::find(layer, item) == layer.end())\r
layer.push_back(item);\r
}\r
void end()\r
{\r
transform_stack_.pop_back();\r
- mode_stack_.pop_back();\r
+ video_mode_stack_.pop_back();\r
}\r
\r
void begin_layer(blend_mode::type blend_mode)\r
{\r
- blend_stack_.push(blend_mode);\r
+ blend_mode_stack_.push(blend_mode);\r
layers_.push_back(layer());\r
}\r
\r
void end_layer()\r
{\r
- blend_stack_.pop();\r
+ blend_mode_stack_.pop();\r
}\r
\r
boost::unique_future<safe_ptr<host_buffer>> render()\r
if(has_overlapping_items(layer, layer.front().blend_mode))\r
{\r
auto local_draw_buffer = create_device_buffer(4); \r
-\r
auto local_blend_mode = layer.front().blend_mode;\r
\r
int fields = 0;\r
\r
draw_item(std::move(item), local_draw_buffer, local_key_buffer, layer_key_buffer); \r
}\r
+ \r
+ render_item item;\r
+ item.pix_desc.pix_fmt = pixel_format::bgra;\r
+ item.pix_desc.planes.push_back(pixel_format_desc::plane(channel_.get_format_desc().width, channel_.get_format_desc().height, 4));\r
+ item.textures.push_back(local_draw_buffer);\r
+ item.blend_mode = local_blend_mode;\r
\r
- kernel_.draw(channel_.ogl(), create_render_item(local_draw_buffer, local_blend_mode), draw_buffer, nullptr, nullptr);\r
+ kernel_.draw(channel_.ogl(), std::move(item), draw_buffer, nullptr, nullptr);\r
}\r
else // fast path\r
{\r
local_key_buffer.second = create_device_buffer(1);\r
}\r
\r
- local_key_buffer.first |= item.mode;\r
+ local_key_buffer.first |= item.mode; // Add field to flag.\r
kernel_.draw(channel_.ogl(), std::move(item), make_safe(local_key_buffer.second), nullptr, nullptr);\r
}\r
else\r
{\r
kernel_.draw(channel_.ogl(), std::move(item), draw_buffer, local_key_buffer.second, layer_key_buffer);\r
- local_key_buffer.first ^= item.mode;\r
+ local_key_buffer.first ^= item.mode; // Remove field from flag.\r
\r
- if(local_key_buffer.first == 0)\r
+ if(local_key_buffer.first == 0) // If all fields from key has been used, reset it\r
{\r
local_key_buffer.first = 0;\r
local_key_buffer.second.reset();\r
//});\r
} \r
\r
- render_item create_render_item(const safe_ptr<device_buffer>& buffer, blend_mode::type blend_mode)\r
- {\r
- CASPAR_ASSERT(buffer->stride() == 4 && "Only used for bgra textures");\r
-\r
- pixel_format_desc desc;\r
- desc.pix_fmt = pixel_format::bgra;\r
- desc.planes.push_back(pixel_format_desc::plane(channel_.get_format_desc().width, channel_.get_format_desc().height, 4));\r
-\r
- std::vector<safe_ptr<device_buffer>> textures;\r
- textures.push_back(buffer);\r
- \r
- return render_item(desc, std::move(textures), image_transform(), video_mode::progressive, nullptr, blend_mode); \r
- }\r
-\r
safe_ptr<device_buffer> create_device_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