Cool_Tools/lindbergh-loader
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add to sound loop

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This commit is contained in:
Bobby Dilley 2023-02-05 21:50:23 +00:00
parent 9a9a714da3
commit 9754df3fea
4 changed files with 144 additions and 63 deletions
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57
docs/config/the-house-of-the-dead-4-special.conf Normal file
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@ -0,0 +1,57 @@
# SEGA Lindbergh Emulator Configuration File
# Written by Bobby Dilley
# Set the colour of the lindbergh to change the Segaboot logo
# Possibly colours are: YELLOW and RED
LINDBERGH_COLOUR YELLOW
# Choice of resolutions
# 640 x 480
# 800 x 600
# 1024 x 768
# 1280 x 1024
# 800 x 480
# 1024 x 600
# 1280 x 768
# 1360 x 768
# Set the requested dip switch width here
WIDTH 1024
# Set the requested dip switch height here
HEIGHT 768
# Set if the emulator should emulate the rideboard used in the special games here
# If this is set to 0, then the emulator will route the traffic to the serial device
# defined in RIDEBOARD_PATH if it has been defined.
EMULATE_RIDEBOARD 1
# Set if the emulator should emulate the driveboard used in driving games here
# If this is set to 0, then the emulator will route the traffic to the serial device
# defined in DRIVEBOARD_PATH if it has been defined.
EMULATE_DRIVEBOARD 0
# Set if the emulator should emulate the motion board from Outrun 2 SP SDX here
# If this is set to 0, then the emulator will route the traffic to the serial device
# defined in MOTIONBOARD_PATH if it has been defined.
EMULATE_MOTIONBOARD 0
# Set if the emulator should emulate JVS and use the keyboard/mouse for controls.
# If this is set to 0, then the emulator will route the traffic to the serial device
# defined in RIDEBOARD_PATH if it has been defined.
EMULATE_JVS 1
# Define the path to pass the JVS packets to
# JVS_PATH /dev/ttyUSB0
# Define the path to pass the rideboard packets to
# RIDEBOARD_PATH /dev/ttyUSB0
# Define the path to pass the driveboard packets to
# DRIVEBOARD_PATH /dev/ttyUSB0
# Define the path to pass the motionboard packets to
# MOTIONBOARD_PATH /dev/ttyUSB0
# Set if the emulator should go full screen
FULLSCREEN 0

77
src/libsegaapi/segaapi.c
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@ -136,64 +136,34 @@ ALsizei FramesToBytes(ALsizei size, ALenum channels, ALenum type)
return size;
}
static unsigned int bufferSampleSize(SEGAContext *context)
{
return context->channels * ((context->sampleFormat == SIGNED_16PCM) ? 2 : 1);
}
static void updateBufferLoop(SEGAContext *context)
{
return;
if (context == NULL)
return;
unsigned int sampleSize = bufferSampleSize(context);
alSourcei(context->alSource, AL_BUFFER, AL_NONE);
/*
FIXME: Re-enable, only crashed before - so fix this too..
ALint loopPoints[] = { buffer->startLoop / sampleSize, buffer->endLoop / sampleSize };
alBufferiv(buffer->alBuffer,AL_LOOP_POINTS_SOFT,loopPoints);
CHECK();
*/
}
static void updateBufferData(SEGAContext *context, unsigned int offset, size_t length)
{
ALenum alFormat = -1;
ALenum alChannels = -1;
ALenum alType;
switch (context->sampleFormat)
{
case UNSIGNED_8PCM: /* Unsigned (offset 128) 8-bit PCM */
alType = AL_BYTE_SOFT;
switch (context->channels)
{
case 1:
alFormat = AL_MONO8_SOFT;
alChannels = AL_MONO_SOFT;
break;
case 2:
alFormat = AL_STEREO8_SOFT;
alChannels = AL_STEREO_SOFT;
break;
default:
break;
}
break;
case SIGNED_16PCM: /* Signed 16-bit PCM */
alType = AL_SHORT_SOFT;
switch (context->channels)
{
case 1:
alFormat = AL_MONO16_SOFT;
alChannels = AL_MONO_SOFT;
break;
case 2:
alFormat = AL_STEREO16_SOFT;
alChannels = AL_STEREO_SOFT;
break;
default:
break;
@ -208,40 +178,24 @@ static void updateBufferData(SEGAContext *context, unsigned int offset, size_t l
abort();
}
if (offset != -1)
{
unsigned int sampleSize = bufferSampleSize(context);
if(context->loop) {
ALint position;
alGetSourcei(context->alSource, AL_SAMPLE_OFFSET, &position);
alGetSourcei(context->alSource, AL_BYTE_OFFSET, &position);
alSourceStop(context->alSource);
alSourcei(context->alSource, AL_BUFFER, AL_NONE);
// alBufferData(context->alBuffer, alFormat, context->data + (offset / sampleSize), FramesToBytes(context->size / bufferSampleSize(context), alChannels, alType), context->sampleRate);
alBufferData(context->alBuffer, alFormat, context->data, FramesToBytes(context->size / bufferSampleSize(context), alChannels, alType), context->sampleRate);
alBufferData(context->alBuffer, alFormat, context->data, context->size, context->sampleRate);
alSourcei(context->alSource, AL_BUFFER, context->alBuffer);
alSourcei(context->alSource, AL_SAMPLE_OFFSET, position);
return;
alSourcei(context->alSource, AL_BYTE_OFFSET, position);
alSourcePlay(context->alSource);
}
alSourcei(context->alSource, AL_BUFFER, AL_NONE);
alBufferData(context->alBuffer, alFormat, context->data, FramesToBytes(context->size / bufferSampleSize(context), alChannels, alType), context->sampleRate);
alBufferData(context->alBuffer, alFormat, context->data, context->size, context->sampleRate);
alSourcei(context->alSource, AL_BUFFER, context->alBuffer);
// updateBufferLoop(context);
}
static void resetBuffer(SEGAContext *context)
{ // printf("%s %d\n", __func__, __LINE__);
// * - Send Routing
// * - for 1 channel buffer, channel is routed to Front-Left and Front-Right.
// * - for 2 channel buffer, channel 0 is routed Front-Left, channel 1 is routed Front-Right
// * - Send Levels are set to 0 (infinite attenuation)
// * - Channel Volume is set to 0xFFFFFFFF (no attenuation)
// * - No notification.
// * - StartLoopOffset is set to 0.
// * - EndLoopOffset and EndOffset are set to pConfig->mapdata.dwSize.
// * - No loop.
{
context->startLoop = 0;
context->endOffset = context->size;
@ -283,10 +237,13 @@ int SEGAAPI_Play(void *hHandle)
if (context == NULL)
return SEGA_ERROR_BAD_PARAM;
// alSourcei(context->alSource, AL_LOOPING, context->loop ? AL_TRUE : AL_FALSE);
alSourcei(context->alSource, AL_LOOPING, AL_FALSE);
alSourcei(context->alSource, AL_BUFFER, context->alBuffer);
alSourcei(context->alSource, AL_LOOPING, context->loop ? AL_TRUE : AL_FALSE);
//alSourcei(context->alSource, AL_LOOPING, AL_FALSE);
context->playing = true;
alSourcePlay(context->alSource);
return SEGA_SUCCESS;
}
@ -310,6 +267,8 @@ int SEGAAPI_Stop(void *hHandle)
alSourceStop(context->alSource);
context->playing = false;
return SEGA_SUCCESS;
}
@ -510,7 +469,6 @@ int SEGAAPI_SetStartLoopOffset(void *hHandle, unsigned int dwOffset)
SEGAContext *context = hHandle;
context->startLoop = dwOffset;
updateBufferLoop(context);
return SEGA_SUCCESS;
}
@ -534,7 +492,6 @@ int SEGAAPI_SetEndLoopOffset(void *hHandle, unsigned int dwOffset)
SEGAContext *context = hHandle;
context->endLoop = dwOffset;
updateBufferLoop(context);
return SEGA_SUCCESS;
}

47
src/lindbergh/hook.c
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@ -48,10 +48,21 @@ static void handleSegfault(int signal, siginfo_t *info, void *ptr)
switch (*code)
{
case 0xE4:
case 0xE5:
case 0xEC:
{
printf("UN IMPLELMENTED ASM IN CALL\n");
abort();
}
case 0xED:
{
uint16_t port = ctx->uc_mcontext.gregs[REG_EDX] & 0xFFFF;
printf("ED IN %X\n", port);
// The first port called is usually random, but everything after that
// is a constant offset, so this is a hack to fix that.
// When run as sudo it works fine!?
@ -69,25 +80,50 @@ static void handleSegfault(int signal, siginfo_t *info, void *ptr)
}
break;
case 0xE7: // OUT IMMIDIATE
case 0xE6: // OUT IMMIDIATE
{
uint8_t port = *((uint8_t *)ctx->uc_mcontext.gregs[REG_EIP] + 1);
uint8_t data = ctx->uc_mcontext.gregs[REG_EAX] & 0xFF;
if(port != 0x80) {
printf("E6 OUT %X, %X\n", port, data);
}
ctx->uc_mcontext.gregs[REG_EIP] += 2;
return;
}
break;
case 0xE6: // OUT IMMIDIATE
case 0xE7: // OUT IMMIDIATE
{
uint8_t port = *((uint8_t *)ctx->uc_mcontext.gregs[REG_EIP] + 1);
uint32_t data = ctx->uc_mcontext.gregs[REG_EAX];
printf("E7 OUT %X, %X\n", port, data);
ctx->uc_mcontext.gregs[REG_EIP] += 2;
abort();
return;
}
break;
case 0xEE: // OUT
{
uint16_t port = ctx->uc_mcontext.gregs[REG_EDX] & 0xFFFF;
uint8_t data = ctx->uc_mcontext.gregs[REG_EAX] & 0xFF;
printf("EE OUT %X, %X\n", port, data);
ctx->uc_mcontext.gregs[REG_EIP]++;
abort();
return;
}
break;
@ -95,7 +131,11 @@ static void handleSegfault(int signal, siginfo_t *info, void *ptr)
case 0xEF: // OUT
{
uint16_t port = ctx->uc_mcontext.gregs[REG_EDX] & 0xFFFF;
uint8_t data = ctx->uc_mcontext.gregs[REG_EAX] & 0xFFFF;
printf("EF OUT %X, %X\n", port, data);
ctx->uc_mcontext.gregs[REG_EIP]++;
return;
}
break;
@ -103,8 +143,9 @@ static void handleSegfault(int signal, siginfo_t *info, void *ptr)
default:
printf("Warning: Skipping SEGFAULT %X\n", *code);
ctx->uc_mcontext.gregs[REG_EIP]++;
// abort();
return;
}
}
void __attribute__((constructor)) hook_init()

26
src/lindbergh/securityboard.c
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@ -95,6 +95,7 @@ int securityBoardSetSwitch(JVSInput switchNumber, int value)
int securityBoardOut(uint16_t port, uint32_t *data)
{
printf("OUT(%X, %X%X)\n", port, *data >> 8 & 0XFF, *data & 0XFF);
return 0;
}
@ -102,6 +103,31 @@ int securityBoardIn(uint16_t port, uint32_t *data)
{
switch (port)
{
case 0x28:
{
static int meme = 0;
static int n = 0;
if(meme == 0) {
meme++;
uint32_t result = 0xFFFFFFFF;
printf("flip\n");
*data = result;
} else {
meme = 0;
uint32_t result = 0x00000001 << n;
n++;
*data = result;
printf("flop return %d\n", result);
}
}
case SECURITY_BOARD_FRONT_PANEL_NON_ROOT:
case SECURITY_BOARD_FRONT_PANEL:
{