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2020-02-18X11: Use ephemeral Cairo surfaces for drawingDavid Robillard1-51/+66
This uses a similar approach to Gtk, where surfaces are created every draw call. It is a bit slower for a single application in most cases, but uses less memory when drawing isn't happening and plays more nicely with other views or applications.
2020-02-18Pass expose event to backend enter and leave functionsDavid Robillard11-66/+65
This is needed for clipping. Unfortunately, the puglEnterContext() and puglLeaveContext() API was not suitable for this, but this shouldn't matter in user code because it is only used for setup, and is slated for removal anyway. Instead, just call the backend functions directly in the implementation.
2020-02-18Remove immediate dispatch of exposed rectsDavid Robillard1-30/+2
This was a hack to support only exposing the rects that were explicitly exposed with puglPostRedisplayRect(), but it caused flaky drawing issues because it circumvented the deferral of exposure until the end of the loop. Instead, simply expand the pending expose to be dispatched later as usual. This means that only the union will be exposed in the end, so more area might be drawn than necessary, but this is probably good enough. If not, we will have to maintain a set of rects and be more clever about combining them.
2020-02-18X11: Use a single Cairo contextDavid Robillard1-22/+20
Cairo has a built-in cache that makes this fast enough to not matter, and it removes some state which is always good.
2020-02-18Fix recursive context entryDavid Robillard1-2/+0
2020-02-11X11: Fix XMoveResizeWindow error checkZoë Sparks1-3/+3
In Xlib, a return value of 0 indicates an error (see "Xlib - C Language X Interface", Ch. 1, "Errors"). XMoveResizeWindow accordingly returns 1 on success, but the error check in puglSetFrame used the usual C convention, and so was backwards.
2020-02-02Only resize backend when necessaryDavid Robillard2-17/+26
This avoids resizing the backend when the window is only moved, which fixes flicker with Cairo where resizing is expensive.
2020-02-02X11: Dispatch exposures from event callbacks in the same iterationDavid Robillard2-1/+16
2020-02-02X11: Avoid calculating expose rect if view is not visibleDavid Robillard1-10/+10
2020-02-02X11: Factor out adding a pending exposureDavid Robillard1-14/+22
2019-12-09Mac: Fix missing NSWindowStyleMask type on 10.11Hanspeter Portner2-3/+9
2019-12-09Cleanup: Fix whitespaceDavid Robillard1-1/+1
2019-11-21Rename "backend" headersDavid Robillard16-161/+230
Working on Vulkan clarified what has always been slightly smelly about the design and organization here: not everything that is API specific is really in a "backend" (a PuglBackend). The concrete example is puglGetProcAddress(), which only makes sense for GL and is actually implemented in the "backend" files. Arguably puglGetContext() is also such a thing. So, rename the headers so they can be the place where API-specific things go in general, which happens to include a backend most of the time. The stub is a bit of an exception to this, but whatever. The includes look tidier this way. In place of the old headers are compatibility stubs that just emit a warning and include the new version, which will be maintained for a while.
2019-11-21Use consistent include guardsDavid Robillard5-15/+15
2019-11-21X11: Remove libGL dependency from GL backendDavid Robillard1-3/+0
This was the only use of actual GL in the backend, and I'm relatively sure this flush is pointless anyway. If, for some bizarre reason, anyone really wants to run without double buffers, they are always free to flush themselves.
2019-11-20Mac: Move puglGetProcAddress() to mac_gl.mDavid Robillard2-17/+17
2019-11-20Mac: Fix unused parameter warningDavid Robillard1-1/+1
2019-11-18Cleanup: Remove unnecessary includesDavid Robillard1-1/+0
2019-11-18Move puglGetProcAddress to pugl_gl_backend.hDavid Robillard2-11/+11
This establishes a general pattern for backend-specific APIs, so that pugl.h doesn't become a mess. The name of these headers, and the definition of "backend", is a little fuzzy here, but it was before in reality anyway.
2019-11-17X11: Don't select on server socket if events are already queuedosch1-1/+3
2019-11-17X11: Support pasting (almost) arbitrarily long textDavid Robillard1-1/+1
This is a bit ridiculous, but using a "probably big enough" value seems to be what everyone does. This particular value is the one used by Gtk.
2019-11-17X11: Don't send expose events to invisible windowsDavid Robillard1-1/+3
2019-11-17X11: Track visibility via system eventsDavid Robillard1-3/+8
This ensure that visibility is properly updated when a window is made visible or invisible by the user or window system. Unfortunately it does not seem to propagate automatically to child windows, but this is at least better than the previous situation, and good enough for most cases.
2019-11-17Use typedefs for flag typesDavid Robillard1-72/+82
This doesn't change anything about type-safety (C can't do that), but at least makes the intent of things clearer.
2019-11-17Cleanup: Use consistent formatting for field documentationDavid Robillard1-141/+141
2019-11-09Fix various clang-tidy warningsDavid Robillard4-17/+17
2019-11-09Add puglStrerror() and improve test program error reportingDavid Robillard2-0/+26
2019-11-03Remove redisplay flag and add puglPostRedisplayRect()David Robillard5-30/+53
2019-11-03X11: Only merge expose events if they intersectDavid Robillard1-13/+45
Towards actual fine-grained exposure. This uses the previous behaviour if expose events intersect to reduce redundant drawing, but dispatches expose events immediately (after flushing and pending configure events) if they don't to support partial redraws.
2019-11-03Add puglGetNativeWorld()David Robillard4-0/+28
2019-11-03Windows: Do not require backends to have a surfaceDavid Robillard1-1/+1
This was just leftover cruft from before error handling was cleaned up, any failure to configure must now be reported by the backend.
2019-11-03Expose functional stub backendDavid Robillard4-1/+79
2019-11-03Move platform stub configuration code to platform headersDavid Robillard4-33/+43
This allows backends which use basic software rendering (like Cairo) to share the common basic window format setup code.
2019-11-03Add stub implementations of backend functionsDavid Robillard5-63/+115
Towards having actual trivial backends, but in general allows backends to not declare functions they don't care about which is nice and already a net reduction of actual code.
2019-11-03Fix puglFreeView() crashes when window creation failedJordan Halase3-14/+28
2019-11-03Cleanup: Fix whitespaceDavid Robillard1-1/+1
2019-11-03Windows: Fix GL context flagsDavid Robillard1-0/+1
2019-10-15Mac: Remove unused method declarationDavid Robillard1-1/+0
2019-09-16Fix memory leakDavid Robillard1-0/+1
2019-09-14Windows: Fix Cairo backend buildDavid Robillard1-18/+18
2019-09-14Add support for using a debug OpenGL contextDavid Robillard3-1/+8
2019-09-14Wrap deprecated declarations in PUGL_DISABLE_DEPRECATEDDavid Robillard1-0/+4
This allows projects that use strict warning flags to suppress warning noise.
2019-09-07Improve documentation and use LV2 documentation styleDavid Robillard2-24/+29
2019-09-07Clean up error handlingDavid Robillard12-114/+123
2019-09-07Add clipboard supportDavid Robillard8-0/+321
2019-09-07Cleanup: Fix whitespaceDavid Robillard1-13/+13
2019-09-07Windows: Fix library leak during world creationDavid Robillard1-0/+2
2019-09-03Windows: Fix puglGetProcAddress() for OpenGL 1.1 functionsDavid Robillard1-1/+9
2019-09-03Make almost everything return a statusDavid Robillard5-37/+60
Prepares the API for proper error handling, even though there isn't any for these functions yet.
2019-09-03Make event handler return a statusDavid Robillard1-1/+1
Currently unused, but this is to leave open the possibility of event propagation or better errror handling.
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