annotate test/README @ 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 a0e096916474
children
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74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
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1
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
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2 These are test programs for the SDL library:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
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3
2082
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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4 checkkeys Watch the key events to check the keyboard
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Patrice Mandin <patmandin@gmail.com>
parents: 1039
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5 graywin Display a gray gradient and center mouse on spacebar
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Patrice Mandin <patmandin@gmail.com>
parents: 1039
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6 loopwave Audio test -- loop playing a WAV file
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Patrice Mandin <patmandin@gmail.com>
parents: 1039
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7 testalpha Display an alpha faded icon -- paint with mouse
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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8 testaudioinfo Lists audio device capabilities
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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9 testbitmap Test displaying 1-bit bitmaps
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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10 testblitspeed Tests performance of SDL's blitters and converters.
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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11 testcdrom Sample audio CD control program
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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12 testcursor Tests custom mouse cursor
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Patrice Mandin <patmandin@gmail.com>
parents: 1039
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13 testdyngl Tests dynamically loading OpenGL library
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74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
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14 testerror Tests multi-threaded error handling
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e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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15 testfile Tests RWops layer
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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16 testgamma Tests video device gamma ramp
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Patrice Mandin <patmandin@gmail.com>
parents: 1039
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17 testgl A very simple example of using OpenGL with SDL
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3e3724fb829e Fixed bug #681
Sam Lantinga <slouken@libsdl.org>
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18 testgl2 An even simpler example using the SDL 1.3 API
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e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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19 testhread Hacked up test of multi-threading
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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20 testiconv Tests international string conversion
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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21 testjoystick List joysticks and watch joystick events
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
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22 testkeys List the available keyboard keys
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e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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23 testloadso Tests the loadable library layer
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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24 testlock Hacked up test of multi-threading and locking
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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25 testmultiaudio Tests using several audio devices
886
05c551e5bc64 Date: Sat, 24 Apr 2004 15:13:32 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 0
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26 testoverlay Tests the software/hardware overlay functionality.
05c551e5bc64 Date: Sat, 24 Apr 2004 15:13:32 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 0
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27 testoverlay2 Tests the overlay flickering/scaling during playback.
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e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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28 testpalette Tests palette color cycling
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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29 testplatform Tests types, endianness and cpu capabilities
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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30 testsem Tests SDL's semaphore implementation
4799
a0e096916474 Rewrote test program for shaped windows. It definitely displays recognizable pictures now, but the resizing and shaping functionality isn't behaving correctly, possibly due to a miscalculation of alpha values.
Eli Gottlieb <eligottlieb@gmail.com>
parents: 4770
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31 testshape Tests shaped windows
2082
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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32 testsprite Example of fast sprite movement on the screen
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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33 testsprite2 Improved version of testsprite
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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34 testtimer Test the timer facilities
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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35 testver Check the version and dynamic loading and endianness
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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36 testvidinfo Show the pixel format of the display and perfom the benchmark
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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37 testwin Display a BMP image at various depths
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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38 testwm Test window manager -- title, icon, events
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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39 testwm2 Improved version of testwm
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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40 threadwin Test multi-threaded event handling
e6cd882e3ac0 Alpha sort the test list, add missing ones, remove removed ones
Patrice Mandin <patmandin@gmail.com>
parents: 1039
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41 torturethread Simple test for thread creation/destruction