fte/quakespasm: Extra bloaty junk to modernise stuff a bit.

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Extra bloaty junk to modernise stuff a bit. https://fte.triptohell.info/moodles/qss/

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ewasylishen 63b813cb06 Simple use of vertex arrays in R_DrawTextureChains_Multitexture. The glBegin(GL_POLYGON), for() loop with GL_MTexCoord2fFunc()/glVertex3fv() calls, and glEnd () per polygon is replaced by a memcpy() and a glDrawArrays() call per poly. My guess is this only saves function call overhead, but it gives a decent ~20% speedup (36 -> 42fps) on my machine on orl’s map. Note: glDrawArrays() is in OpenGL 1.1, but the glClientActiveTextureARB function is part of the GL_ARB_multitexture extension but not GL_SGIS_multitexture. Instead of splitting into two code paths, I just dropped support for GL_SGIS_multitexture. git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@981 af15c1b1-3010-417e-b628-4374ebc0bcbd	2014-08-30 03:22:26 +00:00
quakespasm	Simple use of vertex arrays in R_DrawTextureChains_Multitexture.	2014-08-30 03:22:26 +00:00

ewasylishen 63b813cb06 Simple use of vertex arrays in R_DrawTextureChains_Multitexture.

The glBegin(GL_POLYGON), for() loop with GL_MTexCoord2fFunc()/glVertex3fv() calls, and glEnd () per polygon is replaced by a memcpy() and a glDrawArrays() call per poly.

My guess is this only saves function call overhead, but it gives a decent ~20% speedup (36 -> 42fps) on my machine on orl’s map.

Note: glDrawArrays() is in OpenGL 1.1, but the glClientActiveTextureARB function is part of the GL_ARB_multitexture extension but not GL_SGIS_multitexture. Instead of splitting into two code paths, I just dropped support for GL_SGIS_multitexture.

git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@981 af15c1b1-3010-417e-b628-4374ebc0bcbd

2014-08-30 03:22:26 +00:00

quakespasm

Simple use of vertex arrays in R_DrawTextureChains_Multitexture.

2014-08-30 03:22:26 +00:00