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fix off by one error in OPCODE_RET

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This commit is contained in:
Brian 2007-03-27 11:02:20 -06:00
parent d6d6d20b13
commit a0275b0d2c
1 changed files with 4 additions and 3 deletions
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7
src/mesa/shader/prog_execute.c
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@ -752,8 +752,8 @@ _mesa_execute_program(GLcontext * ctx,
if (machine->StackDepth >= MAX_PROGRAM_CALL_DEPTH) {
return GL_TRUE; /* Per GL_NV_vertex_program2 spec */
}
machine->CallStack[machine->StackDepth++] = pc + 1;
pc = inst->BranchTarget; /* XXX - 1 ??? */
machine->CallStack[machine->StackDepth++] = pc + 1; /* next inst */
pc = inst->BranchTarget;
}
break;
case OPCODE_CMP:
@ -1305,7 +1305,8 @@ _mesa_execute_program(GLcontext * ctx,
if (machine->StackDepth == 0) {
return GL_TRUE; /* Per GL_NV_vertex_program2 spec */
}
pc = machine->CallStack[--machine->StackDepth];
/* subtract one because of pc++ in the for loop */
pc = machine->CallStack[--machine->StackDepth] - 1;
}
break;
case OPCODE_RFL: /* reflection vector */