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Diffstat (limited to 'src/mesa/pipe/tgsi/core/tgsi_exec.c')
-rw-r--r--src/mesa/pipe/tgsi/core/tgsi_exec.c174
1 files changed, 148 insertions, 26 deletions
diff --git a/src/mesa/pipe/tgsi/core/tgsi_exec.c b/src/mesa/pipe/tgsi/core/tgsi_exec.c
index 2bd2e7ce05..71dfbc10f3 100644
--- a/src/mesa/pipe/tgsi/core/tgsi_exec.c
+++ b/src/mesa/pipe/tgsi/core/tgsi_exec.c
@@ -111,6 +111,7 @@ tgsi_exec_prepare(
{
struct tgsi_parse_context parse;
GLuint k;
+ GLuint instno = 0;
mach->ImmLimit = 0;
labels->count = 0;
@@ -124,26 +125,30 @@ tgsi_exec_prepare(
while( !tgsi_parse_end_of_tokens( &parse ) ) {
GLuint pointer = parse.Position;
GLuint i;
+
tgsi_parse_token( &parse );
switch( parse.FullToken.Token.Type ) {
case TGSI_TOKEN_TYPE_DECLARATION:
break;
+
case TGSI_TOKEN_TYPE_IMMEDIATE:
assert( (parse.FullToken.FullImmediate.Immediate.Size - 1) % 4 == 0 );
assert( mach->ImmLimit + (parse.FullToken.FullImmediate.Immediate.Size - 1) / 4 <= 256 );
+
for( i = 0; i < parse.FullToken.FullImmediate.Immediate.Size - 1; i++ ) {
mach->Imms[mach->ImmLimit + i / 4][i % 4] = parse.FullToken.FullImmediate.u.ImmediateFloat32[i].Float;
}
mach->ImmLimit += (parse.FullToken.FullImmediate.Immediate.Size - 1) / 4;
break;
+
case TGSI_TOKEN_TYPE_INSTRUCTION:
- if( parse.FullToken.FullInstruction.InstructionExtLabel.Label ) {
- assert( labels->count < 128 );
- labels->labels[labels->count][0] = parse.FullToken.FullInstruction.InstructionExtLabel.Label;
- labels->labels[labels->count][1] = pointer;
- labels->count++;
- }
+ assert( labels->count < 128 );
+
+ labels->labels[labels->count][0] = instno;
+ labels->labels[labels->count][1] = pointer;
+ labels->count++;
break;
+
default:
assert( 0 );
}
@@ -1233,22 +1238,6 @@ fetch_texel_3d( GLcontext *ctx,
}
#endif
-static GLuint
-map_label(
- GLuint label,
- struct tgsi_exec_labels *labels )
-{
- GLuint i;
-
- for( i = 0; i < labels->count; i++ ) {
- if( labels->labels[i][0] == label ) {
- return labels->labels[i][1];
- }
- }
- assert( 0 );
- return 0;
-}
-
static void
exec_instruction(
struct tgsi_exec_machine *mach,
@@ -1988,7 +1977,43 @@ exec_instruction(
break;
case TGSI_OPCODE_IF:
- assert (0);
+ {
+ GLuint cond = 0;
+ struct tgsi_exec_cond_state *state;
+
+ /* Allocate condition state. */
+ assert( mach->CondStack.Index > 0 );
+ mach->CondStack.Index--;
+
+ /* Evaluate the condition mask. */
+ FETCH( &r[0], 0, CHAN_X );
+ if( r[0].u[0] ) {
+ cond |= 1;
+ }
+ if( r[0].u[1] ) {
+ cond |= 2;
+ }
+ if( r[0].u[2] ) {
+ cond |= 4;
+ }
+ if( r[0].u[3] ) {
+ cond |= 8;
+ }
+
+ state = &mach->CondStack.States[mach->CondStack.Index];
+
+ /* Initialize the If portion of condition state. */
+ memcpy(
+ state->IfPortion.TempsAddrs,
+ mach->Temps,
+ sizeof( state->IfPortion.TempsAddrs ) );
+ memcpy(
+ state->IfPortion.Outputs,
+ mach->Outputs,
+ sizeof( state->IfPortion.Outputs ) );
+ state->Condition = cond;
+ state->WasElse = GL_FALSE;
+ }
break;
case TGSI_OPCODE_LOOP:
@@ -2000,12 +2025,107 @@ exec_instruction(
break;
case TGSI_OPCODE_ELSE:
- assert (0);
+ {
+ struct tgsi_exec_cond_state *state;
+ struct tgsi_exec_cond_regs temp;
+
+ state = &mach->CondStack.States[mach->CondStack.Index];
+
+ /* Copy the results of the If portion to temporary storage. */
+ memcpy(
+ temp.TempsAddrs,
+ mach->Temps,
+ sizeof( temp.TempsAddrs ) );
+ memcpy(
+ temp.Outputs,
+ mach->Outputs,
+ sizeof( temp.Outputs ) );
+
+ /* Restore the state of registers from before the If statement. */
+ memcpy(
+ mach->Temps,
+ state->IfPortion.TempsAddrs,
+ sizeof( state->IfPortion.TempsAddrs ) );
+ memcpy(
+ mach->Outputs,
+ state->IfPortion.Outputs,
+ sizeof( state->IfPortion.Outputs ) );
+
+ /* Save the results of If portion. */
+ memcpy(
+ &state->IfPortion,
+ &temp,
+ sizeof( state->IfPortion ) );
+ state->WasElse = GL_TRUE;
+ }
break;
case TGSI_OPCODE_ENDIF:
- assert (0);
- break;
+ {
+ struct tgsi_exec_cond_state *state;
+ GLuint i;
+
+ state = &mach->CondStack.States[mach->CondStack.Index];
+
+ if( state->WasElse ) {
+ /* Save the results of Else portion. */
+ memcpy(
+ state->ElsePortion.TempsAddrs,
+ mach->Temps,
+ sizeof( state->ElsePortion.TempsAddrs ) );
+ memcpy(
+ state->ElsePortion.Outputs,
+ mach->Outputs,
+ sizeof( state->ElsePortion.Outputs ) );
+ }
+ else {
+ /* Copy the state of registers from before the If statement to Else portion. */
+ memcpy(
+ &state->ElsePortion,
+ &state->IfPortion,
+ sizeof( state->ElsePortion ) );
+
+ /* Save the results of the If portion. */
+ memcpy(
+ state->IfPortion.TempsAddrs,
+ mach->Temps,
+ sizeof( state->IfPortion.TempsAddrs ) );
+ memcpy(
+ state->IfPortion.Outputs,
+ mach->Outputs,
+ sizeof( state->IfPortion.Outputs ) );
+ }
+
+ /* Mix the If and Else portions based on condition mask. */
+ for( i = 0; i < 4; i++ ) {
+ struct tgsi_exec_cond_regs *regs;
+ GLuint j;
+
+ if( state->Condition & (1 << i) ) {
+ regs = &state->IfPortion;
+ }
+ else {
+ regs = &state->ElsePortion;
+ }
+
+ for( j = 0; j < TGSI_EXEC_NUM_TEMPS + TGSI_EXEC_NUM_ADDRS; j++ ) {
+ mach->Temps[j].xyzw[0].u[i] = regs->TempsAddrs[j].xyzw[0].u[i];
+ mach->Temps[j].xyzw[1].u[i] = regs->TempsAddrs[j].xyzw[1].u[i];
+ mach->Temps[j].xyzw[2].u[i] = regs->TempsAddrs[j].xyzw[2].u[i];
+ mach->Temps[j].xyzw[3].u[i] = regs->TempsAddrs[j].xyzw[3].u[i];
+ }
+ for( j = 0; j < 2; j++ ) {
+ mach->Outputs[j].xyzw[0].u[i] = regs->Outputs[j].xyzw[0].u[i];
+ mach->Outputs[j].xyzw[1].u[i] = regs->Outputs[j].xyzw[1].u[i];
+ mach->Outputs[j].xyzw[2].u[i] = regs->Outputs[j].xyzw[2].u[i];
+ mach->Outputs[j].xyzw[3].u[i] = regs->Outputs[j].xyzw[3].u[i];
+ }
+ }
+
+ /* Release condition state. */
+ mach->CondStack.Index++;
+ }
+ break;
case TGSI_OPCODE_ENDLOOP:
assert (0);
@@ -2214,6 +2334,8 @@ tgsi_exec_machine_run2(
mach->Primitives[0] = 0;
}
+ mach->CondStack.Index = 8;
+
k = tgsi_parse_init( &parse, mach->Tokens );
if (k != TGSI_PARSE_OK) {
printf("Problem parsing!\n");
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