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Fixed bug #292 I might be on crack here. It looks like SDL_ConvertMono() in src/audio/SDL_audiocvt.c adds the left and right channels of a stereo stream together, and clamps the new mono channel if it would overflow. Shouldn't it be dividing by 2 to average the two sample points instead of clamping? Otherwise the mono sample point's volume doubles in the conversion. This would also make the conversion faster, as it replaces two branches per sample frame with a bitwise shift. --ryan.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 24 Sep 2006 15:56:36 +0000
parents 68f2b997758e
children e6cd882e3ac0 5baad3758427
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2 These are test programs for the SDL library:
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4 testver Check the version and dynamic loading and endianness
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5 testtypes Check to see if the data types are the correct size
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6 testhread Hacked up test of multi-threading
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7 testlock Hacked up test of multi-threading and locking
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8 testerror Tests multi-threaded error handling
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9 testsem Tests SDL's semaphore implementation
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10 testtimer Test the timer facilities
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11 loopwave Audio test -- loop playing a WAV file
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12 testcdrom Sample audio CD control program
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13 testkeys List the available keyboard keys
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14 testvidinfo Show the pixel format of the display and perfom the benchmark
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15 checkkeys Watch the key events to check the keyboard
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16 testwin Display a BMP image at various depths
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17 graywin Display a gray gradient and center mouse on spacebar
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18 testsprite Example of fast sprite movement on the screen
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19 testbitmap Test displaying 1-bit bitmaps
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20 testalpha Display an alpha faded icon -- paint with mouse
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21 testwm Test window manager -- title, icon, events
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22 threadwin Test multi-threaded event handling
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23 testgl A very simple example of using OpenGL with SDL
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24 testjoystick List joysticks and watch joystick events
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25 testoverlay Tests the software/hardware overlay functionality.
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26 testoverlay2 Tests the overlay flickering/scaling during playback.
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27 testblitspeed Tests performance of SDL's blitters and converters.
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