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Tree: ae31c3cd82

apple-crashy-msaa-default-framebuffer

audio-import

catastrophic-cross

chainsaw-surgery

dpi-change-events

euler-xxx

findsdl-include-root

gltestlib-symbol-duplication

gpu-preference

inverted-ranges

ktx1-detection

master

meshdata-cereal-killer

mousecapture

multiwindow

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sceneconverter

scenedata-optimizations

simd

vectorfields

zerocopy

snapshot-2013-08

snapshot-2013-10

snapshot-2014-01

snapshot-2014-01-compatibility

snapshot-2014-06

snapshot-2014-06-compatibility

snapshot-2015-05

snapshot-2015-05-compatibility

v2013.08

v2013.10

v2014.01

v2014.06

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v2019.10

v2020.06

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magnum/src/Magnum

History

Vladimír Vondruš ae31c3cd82 Platform: initial HiDPI support in SDL2 app on Linux and Emscripten. ... This is quite complex, actually. The end goal is: when I request an 800x600 window, it should create a window of the same physical size as an 800x600 window would have on a system default DPI. After that, the actual window size (for events), framebuffer size and DPI scaling value (to correctly scale the contents relative to window size) are platform-dependent. On macOS and iOS, the DPI scaling is done simply by having the framebuffer twice the size while the window size (for events) remains the same. Easy to support. On Linux, a non-DPI-aware app is simply having a really tiny window. The worst behavior of all systems. Next to that, SDL_GetDisplayDPI() returns physical DPI, which is quite useless as the value is usually coming from Xorg display autodetection and is usually just 96, unless one goes extra lengths and supplies a correct value via an xorg.conf. The DE is using a different, user-configurable value for scaling the visuals and this one is available through a Xft.dpi property. To get it, we dlopen() self and dlsym() X11 symbols to get this property. If this fails, it might mean the app doesn't run on X11 (maybe Wayland, maybe something's just messed up, who knows) and then we fall back to SDL_GetDisplayDPI(). Which is usually very wrong, so this is also why I'm implementing two ways to override this -- either via the app Configuration or via a command-line / environment variable. On Emscripten / HTML5, all that's needed is querying device pixel ratio and then requesting canvas size scaled by that. The event coordinates are relative to this size, so there's not much more to handle. Physical canvas size on the page is controlled via CSS, so no issues with stuff being too big or too small apply -- in the worst case, things may be blurry. On Windows, the DPI scaling is something in-between -- if the app presents itself as DPI-aware, window size is treated as real pixels (so one gets really what is asked for, i.e. an 800x600 window on a system with 240 DPI is maybe four centimeters wide). If not, the window is upscaled (and blurried) by the compositor. In order to have correct behavior, I first need to query if the app is DPI-aware and then either scale the requested size or not (to avoid extra huge windows when the app is not marked as DPI aware). That will be done in a later commit.		8 years ago
..
Animation	Animation: fix XPASS on asm.js.	8 years ago
Audio	Audio: std::abort() needs a header on iOS.	8 years ago
DebugTools	DebugTools: minor cleanup.	8 years ago
GL	GL: my OCD got triggered.	8 years ago
Math	Math: hmm, MSVC 2015 and constexpr. Fun.	8 years ago
MeshTools	MeshTools: explicitly set buffer target hints in compile().	8 years ago
Platform	Platform: initial HiDPI support in SDL2 app on Linux and Emscripten.	8 years ago
Primitives	Primitives: these two were missing from 100% code coverage.	8 years ago
SceneGraph	SceneGraph: doc++	8 years ago
Shaders	Doc++	8 years ago
Shapes	Math: use plane equation in Intersection::planeLine().	8 years ago
Test	CMake: properly specify IDE folders for everything.	8 years ago
Text	Text: avoid assertion failure on ES2 with EXT_texture_rg.	8 years ago
TextureTools	TextureTools: don't require more than 8 texture units in distanceField().	8 years ago
Trade	Trade: redesign importer file callbacks.	8 years ago
Vk	Vk: require at least CMake 3.7.	8 years ago
AbstractFramebuffer.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
AbstractObject.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
AbstractQuery.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
AbstractResourceLoader.h	Random updates for the new documentation theme in the root namespace.	8 years ago
AbstractShaderProgram.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
AbstractTexture.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
Array.h	Max out Array test coverage.	8 years ago
Attribute.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
Buffer.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
BufferImage.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
BufferTexture.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
BufferTextureFormat.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
CMakeLists.txt	Animation: implementation of the Player class.	8 years ago
Context.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
CubeMapTexture.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
CubeMapTextureArray.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
DebugOutput.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
DefaultFramebuffer.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
DimensionTraits.h	Documentation updates for the new theme in the root namespace.	8 years ago
Extensions.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
Framebuffer.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
Image.cpp	Split the OpenGL layer out, pt 10: test the new image APIs.	8 years ago
Image.h	Don't return redundant info from Image*::dataProperties().	8 years ago
ImageFormat.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
ImageView.cpp	Split the OpenGL layer out, pt 10: test the new image APIs.	8 years ago
ImageView.h	Don't return redundant info from Image*::dataProperties().	8 years ago
Magnum.h	Bootstrap Vulkan support.	8 years ago
Mesh.cpp	Split the OpenGL layer out, pt 11: generic MeshPrimitive and MeshIndexType.	8 years ago
Mesh.h	Doxygen: renamed \extension[2] to \gl_extension[2].	8 years ago
MeshView.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
MultisampleTexture.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
OpenGL.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
OpenGLTester.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
PixelFormat.cpp	Split the OpenGL layer out, pt 9: generic pixel formats.	8 years ago
PixelFormat.h	Split the OpenGL layer out, pt 9: generic pixel formats.	8 years ago
PixelStorage.cpp	Don't return redundant info from Image*::dataProperties().	8 years ago
PixelStorage.h	Make deprecated GL-dependent functionality templated.	8 years ago
PrimitiveQuery.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
RectangleTexture.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
Renderbuffer.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
RenderbufferFormat.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
Renderer.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
Resource.cpp	Updated copyright year.	8 years ago
Resource.h	No need to use fully qualified name for \debugoperator.	8 years ago
ResourceManager.h	Documentation updates for the new theme in the root namespace.	8 years ago
ResourceManager.hpp	Updated copyright year.	8 years ago
SampleQuery.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
Sampler.cpp	Split the OpenGL layer out, pt 12: generic sampler state.	8 years ago
Sampler.h	Split the OpenGL layer out, pt 12: generic sampler state.	8 years ago
Shader.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
Tags.h	Split the OpenGL layer out, pt 4: new Magnum::GL namespace.	8 years ago
Texture.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
TextureArray.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
TextureFormat.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
TimeQuery.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
Timeline.cpp	Removed long-deprecated Timeline::setMinimalFrameTime().	8 years ago
Timeline.h	Removed long-deprecated Timeline::setMinimalFrameTime().	8 years ago
TransformFeedback.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
Types.h	Updated copyright year.	8 years ago
Version.h	Split the OpenGL layer out, pt 5: compatibility headers and aliases.	8 years ago
configure.h.cmake	Bootstrap Vulkan support.	8 years ago
visibility.h	Split the OpenGL layer out, pt 10: test the new image APIs.	8 years ago