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Ensure programs don't overflow allocated instruction store.

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This commit is contained in:
Keith Whitwell 2005-05-10 18:24:50 +00:00
parent a42fe19d8d
commit 2fcaf7a529
1 changed files with 8 additions and 1 deletions
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9
src/mesa/tnl/t_vp_build.c
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@ -49,6 +49,8 @@
*/
#define DISASSEM 0
#define MAX_INSN 200
/* Use uregs to represent registers internally, translate to Mesa's
* expected formats on emit.
*
@ -316,6 +318,11 @@ static void emit_op3fn(struct tnl_program *p,
GLuint nr = p->program->Base.NumInstructions++;
struct vp_instruction *inst = &p->program->Instructions[nr];
if (p->program->Base.NumInstructions > MAX_INSN) {
_mesa_problem(p->ctx, "Out of instructions in emit_op3fn\n");
return;
}
inst->Opcode = op;
inst->StringPos = 0;
inst->Data = 0;
@ -1133,7 +1140,7 @@ void _tnl_UpdateFixedFunctionProgram( GLcontext *ctx )
p.temp_flag = 0;
p.temp_reserved = ~((1<<MAX_NV_VERTEX_PROGRAM_TEMPS)-1);
p.program->Instructions = MALLOC(sizeof(struct vp_instruction) * 100);
p.program->Instructions = MALLOC(sizeof(struct vp_instruction) * MAX_INSN);
/* Initialize the arb_program struct */
p.program->Base.String = 0;