annotate VisualC/SDL/resource.h @ 5053:b5b42be9333c

Fixed bug #1026 Vittorio Giovara 2010-07-16 19:09:28 PDT i was reading SDL_renderer_gles and i noticed that every time we there is some gl call the gl state is modified with a couple of glEnableClientState()/glDisableClientState. While this is completely fine for desktops systems, this is a major performace kill on mobile devices, right where opengles is implemented. Normal practice in this case is to update the glstate once, keep it always the same and disable/enable other states only in very special occasions. On the web there's plenty of documentation (on the top of my head http://developer.apple.com/iphone/library/documentation/3DDrawing/Conceptual/OpenGLES_ProgrammingGuide/Performance/Performance.html#//apple_ref/doc/uid/TP40008793-CH105-SW5 ) and i personally tried this. I modified my code and got a 10 fps boost, then modified SDL_render_gles and shifted from 40 fps to 50 fps alone -- considering that i started from ~30fps i got an 80% performance increase with this technique. I have attached a dif of my changes, hope that it will be included in mainstream.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 19 Jan 2011 23:56:16 -0800
parents d63e9f5944ae
children
rev   line source
2207
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
1 //{{NO_DEPENDENCIES}}
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
2 // Microsoft Developer Studio generated include file.
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
3 // Used by Version.rc
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
4 //
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
5
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
6 // Next default values for new objects
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
7 //
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
8 #ifdef APSTUDIO_INVOKED
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
9 #ifndef APSTUDIO_READONLY_SYMBOLS
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
10 #define _APS_NEXT_RESOURCE_VALUE 101
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
11 #define _APS_NEXT_COMMAND_VALUE 40001
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
12 #define _APS_NEXT_CONTROL_VALUE 1000
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
13 #define _APS_NEXT_SYMED_VALUE 101
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
14 #endif
d63e9f5944ae Unpacked project archives to get individual file history in subversion
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
15 #endif