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authorVinson Lee <[email protected]>2010-04-18 00:11:49 -0700
committerVinson Lee <[email protected]>2010-04-18 00:11:49 -0700
commit4e98116c234c25119c1a3a0c0a138ada2ab69906 (patch)
tree62cef20ca7853f990a0ba2d0102d378ce77fa109
parent4485dd8a3e8aff8d4fb73684d0d7a5a1179f60cc (diff)
glsl: Fix handling of OPCODE_PRINT for no registers case.
A register file value is unsigned so could never be -1. A value of 0 also aliased to PROGRAM_TEMPORARY. If an OPCODE_PRINT has no registers to print, set the register file value to PROGRAM_UNDEFINED and check for that value when executing this instruction.
-rw-r--r--src/mesa/shader/nvvertparse.c2
-rw-r--r--src/mesa/shader/prog_execute.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/src/mesa/shader/nvvertparse.c b/src/mesa/shader/nvvertparse.c
index 631b315af3a..7332fc4780b 100644
--- a/src/mesa/shader/nvvertparse.c
+++ b/src/mesa/shader/nvvertparse.c
@@ -1096,7 +1096,7 @@ Parse_PrintInstruction(struct parse_state *parseState, struct prog_instruction *
}
}
else {
- srcReg->File = 0;
+ srcReg->File = PROGRAM_UNDEFINED;
}
/* semicolon */
diff --git a/src/mesa/shader/prog_execute.c b/src/mesa/shader/prog_execute.c
index 37750cc330a..0067512cfb2 100644
--- a/src/mesa/shader/prog_execute.c
+++ b/src/mesa/shader/prog_execute.c
@@ -1767,7 +1767,7 @@ _mesa_execute_program(GLcontext * ctx,
break;
case OPCODE_PRINT:
{
- if (inst->SrcReg[0].File != -1) {
+ if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) {
GLfloat a[4];
fetch_vector4(&inst->SrcReg[0], machine, a);
printf("%s%g, %g, %g, %g\n", (const char *) inst->Data,