From a44f54912e4bc0f6be0b7303f8b7a1b934c5819a Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Tue, 31 Mar 2009 16:17:23 -0600 Subject: tgsi: added some helpful debug functions in the tgsi interpreter Check for NaN/Inf, print exec vectors, print temp registers. --- src/gallium/auxiliary/tgsi/tgsi_exec.c | 53 ++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) (limited to 'src/gallium/auxiliary') diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c index 259877b500d..80b8c92445a 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_exec.c +++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c @@ -127,6 +127,49 @@ static const union tgsi_exec_channel ZeroVec = { { 0.0, 0.0, 0.0, 0.0 } }; + +#ifdef DEBUG +static void +check_inf_or_nan(const union tgsi_exec_channel *chan) +{ + assert(!util_is_inf_or_nan(chan->f[0])); + assert(!util_is_inf_or_nan(chan->f[1])); + assert(!util_is_inf_or_nan(chan->f[2])); + assert(!util_is_inf_or_nan(chan->f[3])); +} +#endif + + +#ifdef DEBUG +static void +print_chan(const char *msg, const union tgsi_exec_channel *chan) +{ + debug_printf("%s = {%f, %f, %f, %f}\n", + msg, chan->f[0], chan->f[1], chan->f[2], chan->f[3]); +} +#endif + + +#ifdef DEBUG +static void +print_temp(const struct tgsi_exec_machine *mach, uint index) +{ + const struct tgsi_exec_vector *tmp = &mach->Temps[index]; + int i; + debug_printf("Temp[%u] =\n", index); + for (i = 0; i < 4; i++) { + debug_printf(" %c: { %f, %f, %f, %f }\n", + "XYZW"[i], + tmp->xyzw[i].f[0], + tmp->xyzw[i].f[1], + tmp->xyzw[i].f[2], + tmp->xyzw[i].f[3]); + } +} +#endif + + + /** * Initialize machine state by expanding tokens to full instructions, * allocating temporary storage, setting up constants, etc. @@ -282,6 +325,12 @@ tgsi_exec_machine_init( mach->Temps[TEMP_3_I].xyzw[TEMP_3_C].f[i] = 3.0f; mach->Temps[TEMP_HALF_I].xyzw[TEMP_HALF_C].f[i] = 0.5f; } + +#ifdef DEBUG + /* silence warnings */ + (void) print_chan; + (void) print_temp; +#endif } @@ -1285,6 +1334,10 @@ store_dest( union tgsi_exec_channel *dst; uint execmask = mach->ExecMask; +#ifdef DEBUG + check_inf_or_nan(chan); +#endif + switch (reg->DstRegister.File) { case TGSI_FILE_NULL: dst = &null; -- cgit v1.2.3