(svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)

1 files changed, 0 insertions, 140 deletions

diff --git a/src/mixer.c b/src/mixer.c
deleted file mode 100644
index 5b97afbf9..000000000
--- a/src/mixer.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/* $Id$ */
-
-#include "stdafx.h"
-#include "openttd.h"
-#include "mixer.h"
-
-struct MixerChannel {
-	bool active;
-
-	// pointer to allocated buffer memory
-	int8 *memory;
-
-	// current position in memory
-	uint32 pos;
-	uint32 frac_pos;
-	uint32 frac_speed;
-	uint32 samples_left;
-
-	// Mixing volume
-	uint volume_left;
-	uint volume_right;
-
-	uint flags;
-};
-
-static MixerChannel _channels[8];
-static uint32 _play_rate;
-
-
-static void mix_int8_to_int16(MixerChannel *sc, int16 *buffer, uint samples)
-{
-	int8 *b;
-	uint32 frac_pos;
-	uint32 frac_speed;
-	uint volume_left;
-	uint volume_right;
-
-	if (samples > sc->samples_left) samples = sc->samples_left;
-	sc->samples_left -= samples;
-	assert(samples > 0);
-
-	b = sc->memory + sc->pos;
-	frac_pos = sc->frac_pos;
-	frac_speed = sc->frac_speed;
-	volume_left = sc->volume_left;
-	volume_right = sc->volume_right;
-
-	if (frac_speed == 0x10000) {
-		// Special case when frac_speed is 0x10000
-		do {
-			buffer[0] += *b * volume_left >> 8;
-			buffer[1] += *b * volume_right >> 8;
-			b++;
-			buffer += 2;
-		} while (--samples > 0);
-	} else {
-		do {
-			buffer[0] += *b * volume_left >> 8;
-			buffer[1] += *b * volume_right >> 8;
-			buffer += 2;
-			frac_pos += frac_speed;
-			b += frac_pos >> 16;
-			frac_pos &= 0xffff;
-		} while (--samples > 0);
-	}
-
-	sc->frac_pos = frac_pos;
-	sc->pos = b - sc->memory;
-}
-
-static void MxCloseChannel(MixerChannel *mc)
-{
-	if (mc->flags & MX_AUTOFREE) free(mc->memory);
-	mc->active = false;
-	mc->memory = NULL;
-}
-
-void MxMixSamples(void *buffer, uint samples)
-{
-	MixerChannel *mc;
-
-	// Clear the buffer
-	memset(buffer, 0, sizeof(int16) * 2 * samples);
-
-	// Mix each channel
-	for (mc = _channels; mc != endof(_channels); mc++) {
-		if (mc->active) {
-			mix_int8_to_int16(mc, buffer, samples);
-			if (mc->samples_left == 0) MxCloseChannel(mc);
-		}
-	}
-}
-
-MixerChannel *MxAllocateChannel(void)
-{
-	MixerChannel *mc;
-	for (mc = _channels; mc != endof(_channels); mc++)
-		if (mc->memory == NULL) {
-			mc->active = false;
-			return mc;
-		}
-	return NULL;
-}
-
-void MxSetChannelRawSrc(MixerChannel *mc, int8 *mem, uint size, uint rate, uint flags)
-{
-	mc->memory = mem;
-	mc->flags = flags;
-	mc->frac_pos = 0;
-	mc->pos = 0;
-
-	mc->frac_speed = (rate << 16) / _play_rate;
-
-	// adjust the magnitude to prevent overflow
-	while (size & 0xFFFF0000) {
-		size >>= 1;
-		rate = (rate >> 1) + 1;
-	}
-
-	mc->samples_left = size * _play_rate / rate;
-}
-
-void MxSetChannelVolume(MixerChannel *mc, uint left, uint right)
-{
-	mc->volume_left = left;
-	mc->volume_right = right;
-}
-
-
-void MxActivateChannel(MixerChannel* mc)
-{
-	mc->active = true;
-}
-
-
-bool MxInitialize(uint rate)
-{
-	_play_rate = rate;
-	return true;
-}