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mesa: don't realloc instruction buffer so often

This commit is contained in:
Brian Paul 2008-11-14 13:19:42 -07:00
parent d9fa9e3290
commit e709d68d92
1 changed files with 22 additions and 13 deletions
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35
src/mesa/shader/slang/slang_emit.c
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@ -60,6 +60,8 @@ typedef struct
struct gl_program **Subroutines;
GLuint NumSubroutines;
GLuint MaxInstructions; /**< size of prog->Instructions[] buffer */
/* code-gen options */
GLboolean EmitHighLevelInstructions;
GLboolean EmitCondCodes;
@ -387,9 +389,17 @@ new_instruction(slang_emit_info *emitInfo, gl_inst_opcode opcode)
_mesa_print_instruction(prog->Instructions + prog->NumInstructions - 1);
}
#endif
prog->Instructions = _mesa_realloc_instructions(prog->Instructions,
prog->NumInstructions,
prog->NumInstructions + 1);
assert(prog->NumInstructions <= emitInfo->MaxInstructions);
if (prog->NumInstructions == emitInfo->MaxInstructions) {
/* grow the instruction buffer */
emitInfo->MaxInstructions += 20;
prog->Instructions =
_mesa_realloc_instructions(prog->Instructions,
prog->NumInstructions,
emitInfo->MaxInstructions);
}
inst = prog->Instructions + prog->NumInstructions;
prog->NumInstructions++;
_mesa_init_instructions(inst, 1);
@ -414,18 +424,11 @@ emit_instruction(slang_emit_info *emitInfo,
const slang_ir_storage *src2,
const slang_ir_storage *src3)
{
struct gl_program *prog = emitInfo->prog;
struct prog_instruction *inst;
prog->Instructions = _mesa_realloc_instructions(prog->Instructions,
prog->NumInstructions,
prog->NumInstructions + 1);
inst = prog->Instructions + prog->NumInstructions;
prog->NumInstructions++;
_mesa_init_instructions(inst, 1);
inst->Opcode = opcode;
inst->BranchTarget = -1; /* invalid */
inst = new_instruction(emitInfo, opcode);
if (!inst)
return NULL;
if (dst)
storage_to_dst_reg(&inst->DstReg, dst);
@ -1034,13 +1037,17 @@ emit_fcall(slang_emit_info *emitInfo, slang_ir_node *n)
struct gl_program *progSave;
struct prog_instruction *inst;
GLuint subroutineId;
GLuint maxInstSave;
assert(n->Opcode == IR_CALL);
assert(n->Label);
/* save/push cur program */
maxInstSave = emitInfo->MaxInstructions;
progSave = emitInfo->prog;
emitInfo->prog = new_subroutine(emitInfo, &subroutineId);
emitInfo->MaxInstructions = emitInfo->prog->NumInstructions;
_slang_label_set_location(n->Label, emitInfo->prog->NumInstructions,
emitInfo->prog);
@ -1072,6 +1079,7 @@ emit_fcall(slang_emit_info *emitInfo, slang_ir_node *n)
/* pop/restore cur program */
emitInfo->prog = progSave;
emitInfo->MaxInstructions = maxInstSave;
/* emit the function call */
inst = new_instruction(emitInfo, OPCODE_CAL);
@ -2199,6 +2207,7 @@ _slang_emit_code(slang_ir_node *n, slang_var_table *vt,
emitInfo.prog = prog;
emitInfo.Subroutines = NULL;
emitInfo.NumSubroutines = 0;
emitInfo.MaxInstructions = 0;
emitInfo.EmitHighLevelInstructions = ctx->Shader.EmitHighLevelInstructions;
emitInfo.EmitCondCodes = ctx->Shader.EmitCondCodes;