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Location: cpp/openttd-patchpack/source/src/mixer.h - annotation
r23882:d683a0787bc9
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text/x-c
Codechange: Don't use SDL_CreateRGBSurfaceWithFormat()
This function requires libSDL 2.0.5 or higher. It looks like we don't
need to use it, and can just use the original SDL_CreateRGBSurface(),
with the masks set to 0, to trigger the default 8-bit format, which is
SDL_PIXELFORMAT_INDEX8.
Closes #7785
Note: this code path is activated by using an 8-bit blitter, like:
./bin/openttd -b 8bpp-simple
This function requires libSDL 2.0.5 or higher. It looks like we don't
need to use it, and can just use the original SDL_CreateRGBSurface(),
with the masks set to 0, to trigger the default 8-bit format, which is
SDL_PIXELFORMAT_INDEX8.
Closes #7785
Note: this code path is activated by using an 8-bit blitter, like:
./bin/openttd -b 8bpp-simple
r5475:3f5cd13d1b63 r5475:3f5cd13d1b63 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r9111:983de9c5a848 r6201:2e76eb9a1d7a r5475:3f5cd13d1b63 r5475:3f5cd13d1b63 r5475:3f5cd13d1b63 r6248:b940b09d7ab8 r5475:3f5cd13d1b63 r23101:10b102b8ce3d r23101:10b102b8ce3d r23101:10b102b8ce3d r23101:10b102b8ce3d r23101:10b102b8ce3d r23101:10b102b8ce3d r23101:10b102b8ce3d r23101:10b102b8ce3d r5475:3f5cd13d1b63 r7318:844268a38029 r5475:3f5cd13d1b63 r7318:844268a38029 r12675:08178fc9d621 r14734:58c3f99dc69c r5475:3f5cd13d1b63 r5475:3f5cd13d1b63 r23101:10b102b8ce3d r23101:10b102b8ce3d r5475:3f5cd13d1b63 | /* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file mixer.h Functions to mix sound samples. */
#ifndef MIXER_H
#define MIXER_H
struct MixerChannel;
/**
* Type of callback functions for supplying PCM music.
* A music decoder/renderer implements this function and installs it with MxSetMusicSource, which also returns the sample rate used.
* @param buffer Pointer to interleaved 2-channel signed 16 bit PCM data buffer, guaranteed to be 0-initialized.
* @param samples number of samples that must be filled into \c buffer.
*/
typedef void(*MxStreamCallback)(int16 *buffer, size_t samples);
bool MxInitialize(uint rate);
void MxMixSamples(void *buffer, uint samples);
MixerChannel *MxAllocateChannel();
void MxSetChannelRawSrc(MixerChannel *mc, int8 *mem, size_t size, uint rate, bool is16bit);
void MxSetChannelVolume(MixerChannel *mc, uint volume, float pan);
void MxActivateChannel(MixerChannel*);
uint32 MxSetMusicSource(MxStreamCallback music_callback);
#endif /* MIXER_H */
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