2 Commits

Author	SHA1	Message	Date
Hajime Hoshi	52f6be2639	graphicsdriver/opengl: Fix suspicious GL function calls ... Before this change, the pixel object buffer is unbound just after getting a pointer by glMapBuffer. This seemed suspicious. This change fixes to do all pixel manipulations once between glMapBuffer and glUnmapBuffer without changing a bound buffer. This might fix a wrong rendering on some machines, but I am not sure. Updates #993	2019-11-20 02:41:34 +09:00
Hajime Hoshi	acc933b7c3	graphicsdriver/opengl: Experimental PBO implementation ... This change is an experimental implementation to use Pixel Buffer Objects. This reduces calls of glTexSubImage2D. This works only on desktops. Unfortunately WebGL does not have this features. Mobiles can have PBO as of OpenGL ES 3. Updates #976	2019-11-17 05:01:43 +09:00