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author | Ivo van Dongen <info@ivovandongen.nl> | 2017-07-05 20:08:51 +0300 |
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committer | Ivo van Dongen <ivovandongen@users.noreply.github.com> | 2017-07-18 10:45:12 +0200 |
commit | 46c43510d7ac5fe078010d5f0f5d39c4d5df3305 (patch) | |
tree | 5dc78959e174dc0e83198a4d92e86f65f33bb168 /include/mbgl/map | |
parent | ee205ca9ca3f808fa2cc16295ebde0a7c3867381 (diff) | |
download | qtlocation-mapboxgl-46c43510d7ac5fe078010d5f0f5d39c4d5df3305.tar.gz |
[core] rename backend to renderer backend
Diffstat (limited to 'include/mbgl/map')
-rw-r--r-- | include/mbgl/map/backend.hpp | 84 | ||||
-rw-r--r-- | include/mbgl/map/backend_scope.hpp | 31 |
2 files changed, 0 insertions, 115 deletions
diff --git a/include/mbgl/map/backend.hpp b/include/mbgl/map/backend.hpp deleted file mode 100644 index 3347086571..0000000000 --- a/include/mbgl/map/backend.hpp +++ /dev/null @@ -1,84 +0,0 @@ -#pragma once - -#include <mbgl/map/view.hpp> -#include <mbgl/map/backend_scope.hpp> -#include <mbgl/util/image.hpp> -#include <mbgl/util/size.hpp> - -#include <memory> -#include <mutex> - -namespace mbgl { - -namespace gl { -class Context; -using ProcAddress = void (*)(); -using FramebufferID = uint32_t; -} // namespace gl - -class Backend { -public: - Backend(); - virtual ~Backend(); - - // Returns the backend's context which manages OpenGL state. - gl::Context& getContext(); - - // Called prior to rendering to update the internally assumed OpenGL state. - virtual void updateAssumedState() = 0; - - inline virtual BackendScope::ScopeType getScopeType() const { - return BackendScope::ScopeType::Explicit; - }; - -protected: - // Called with the name of an OpenGL extension that should be loaded. Backend implementations - // must call the API-specific version that obtains the function pointer for this function, - // or a null pointer if unsupported/unavailable. - virtual gl::ProcAddress initializeExtension(const char*) = 0; - - // Called when the backend's GL context needs to be made active or inactive. These are called, - // as a matched pair, in four situations: - // - // 1. When releasing GL resources during Map destruction - // 2. When calling a CustomLayerInitializeFunction, during Map::addLayer - // 3. When calling a CustomLayerDeinitializeFunction, during Map::removeLayer - // 4. When rendering for Map::renderStill - // - // They are *not* called for Map::render; it is assumed that the correct context is already - // activated prior to calling Map::render. - virtual void activate() = 0; - virtual void deactivate() = 0; - - // Reads the color pixel data from the currently bound framebuffer. - PremultipliedImage readFramebuffer(const Size&) const; - - // A constant to signal that a framebuffer is bound, but with an unknown ID. - static constexpr const gl::FramebufferID ImplicitFramebufferBinding = - std::numeric_limits<gl::FramebufferID>::max(); - - // Tells the renderer that OpenGL state has already been set by the windowing toolkit. - // It sets the internal assumed state to the supplied values. - void assumeFramebufferBinding(gl::FramebufferID fbo); - void assumeViewport(int32_t x, int32_t y, const Size&); - void assumeScissorTest(bool); - - // Returns true when assumed framebuffer binding hasn't changed from the implicit binding. - bool implicitFramebufferBound(); - - // Triggers an OpenGL state update if the internal assumed state doesn't match the - // supplied values. - void setFramebufferBinding(gl::FramebufferID fbo); - void setViewport(int32_t x, int32_t y, const Size&); - void setScissorTest(bool); - -protected: - std::unique_ptr<gl::Context> context; - -private: - std::once_flag initialized; - - friend class BackendScope; -}; - -} // namespace mbgl diff --git a/include/mbgl/map/backend_scope.hpp b/include/mbgl/map/backend_scope.hpp deleted file mode 100644 index 4985cd197f..0000000000 --- a/include/mbgl/map/backend_scope.hpp +++ /dev/null @@ -1,31 +0,0 @@ -#pragma once - -namespace mbgl { - -class Backend; - -class BackendScope { -public: - // There are two types of scopes: Creating an "Implicit" scope tells Mapbox GL that the - // supporting windowing system has already activated the GL Backend and that no further actions - // are required. Creating an "Explicit" scope actually enables the GL Backend, and disables it - // when the BackendScope is destroyed. - enum class ScopeType : bool { - Implicit, - Explicit, - }; - - BackendScope(Backend&, ScopeType = ScopeType::Explicit); - ~BackendScope(); - - // Returns true when there is currently a BackendScope active in this thread. - static bool exists(); - -private: - BackendScope* priorScope; - BackendScope* nextScope; - Backend& backend; - const ScopeType scopeType; -}; - -} // namespace mbgl |