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* Only check OpenGL shader log if size is >1.Yuri Kunde Schlesner2014-10-211-9/+6
| | | | | | | | This prevents a crash when the buffer size returned by the driver is 0, in which case no space is allocated to store even the NULL byte and glGetShaderInfoLog errors out. Thanks to @Relys for the bug report.
* Rewrite of OpenGL renderer, including OS X supportKevin Hartman2014-08-261-0/+81
Screen contents are now displayed using textured quads. This can be updated to expose an FBO once an OpenGL backend for when Pica rendering is being worked on. That FBO's texture can then be applied to the quads. Previously, FBO blitting was used in order to display screen contents, which did not work on OS X. The new textured quad approach is less of a compatibility risk.