diff options
Diffstat (limited to 'src/mbgl/gl/renderer_backend.cpp')
-rw-r--r-- | src/mbgl/gl/renderer_backend.cpp | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/mbgl/gl/renderer_backend.cpp b/src/mbgl/gl/renderer_backend.cpp new file mode 100644 index 0000000000..ed3f38193f --- /dev/null +++ b/src/mbgl/gl/renderer_backend.cpp @@ -0,0 +1,71 @@ +#include <mbgl/gl/renderer_backend.hpp> +#include <mbgl/gfx/backend_scope.hpp> +#include <mbgl/gl/context.hpp> +#include <mbgl/gl/extension.hpp> + +#include <cassert> + +namespace mbgl { +namespace gl { + +RendererBackend::RendererBackend() = default; + +std::unique_ptr<gfx::Context> RendererBackend::createContext() { + auto result = std::make_unique<gl::Context>(*this); + result->enableDebugging(); + result->initializeExtensions( + std::bind(&RendererBackend::getExtensionFunctionPointer, this, std::placeholders::_1)); + // Needs move to placate GCC 4.9 + return std::move(result); +} + +gl::Context& RendererBackend::getGLContext() { + return static_cast<gl::Context&>(getContext()); +} + +PremultipliedImage RendererBackend::readFramebuffer(const Size& size) { + return getGLContext().readFramebuffer<PremultipliedImage>(size); +} + +void RendererBackend::assumeFramebufferBinding(const gl::FramebufferID fbo) { + getGLContext().bindFramebuffer.setCurrentValue(fbo); + if (fbo != ImplicitFramebufferBinding) { + assert(gl::value::BindFramebuffer::Get() == getGLContext().bindFramebuffer.getCurrentValue()); + } +} + +void RendererBackend::assumeViewport(int32_t x, int32_t y, const Size& size) { + getGLContext().viewport.setCurrentValue({ x, y, size }); + assert(gl::value::Viewport::Get() == getGLContext().viewport.getCurrentValue()); +} + +void RendererBackend::assumeScissorTest(bool enabled) { + getGLContext().scissorTest.setCurrentValue(enabled); + assert(gl::value::ScissorTest::Get() == getGLContext().scissorTest.getCurrentValue()); +} + +bool RendererBackend::implicitFramebufferBound() { + return getGLContext().bindFramebuffer.getCurrentValue() == ImplicitFramebufferBinding; +} + +void RendererBackend::setFramebufferBinding(const gl::FramebufferID fbo) { + getGLContext().bindFramebuffer = fbo; + if (fbo != ImplicitFramebufferBinding) { + assert(gl::value::BindFramebuffer::Get() == getGLContext().bindFramebuffer.getCurrentValue()); + } +} + +void RendererBackend::setViewport(int32_t x, int32_t y, const Size& size) { + getGLContext().viewport = { x, y, size }; + assert(gl::value::Viewport::Get() == getGLContext().viewport.getCurrentValue()); +} + +void RendererBackend::setScissorTest(bool enabled) { + getGLContext().scissorTest = enabled; + assert(gl::value::ScissorTest::Get() == getGLContext().scissorTest.getCurrentValue()); +} + +RendererBackend::~RendererBackend() = default; + +} // namespace gl +} // namespace mbgl |