result[3] = src[GET_SWZ(source->Swizzle, 3)];
}
- if (source->Abs) {
- result[0] = fabsf(result[0]);
- result[1] = fabsf(result[1]);
- result[2] = fabsf(result[2]);
- result[3] = fabsf(result[3]);
- }
if (source->Negate) {
assert(source->Negate == NEGATE_XYZW);
result[0] = -result[0];
result[2] = deriv[GET_SWZ(source->Swizzle, 2)];
result[3] = deriv[GET_SWZ(source->Swizzle, 3)];
- if (source->Abs) {
- result[0] = fabsf(result[0]);
- result[1] = fabsf(result[1]);
- result[2] = fabsf(result[2]);
- result[3] = fabsf(result[3]);
- }
if (source->Negate) {
assert(source->Negate == NEGATE_XYZW);
result[0] = -result[0];
result[0] = src[GET_SWZ(source->Swizzle, 0)];
- if (source->Abs) {
- result[0] = fabsf(result[0]);
- }
if (source->Negate) {
result[0] = -result[0];
}
}
-/**
- * Test value against zero and return GT, LT, EQ or UN if NaN.
- */
-static inline GLuint
-generate_cc(float value)
-{
- if (value != value)
- return COND_UN; /* NaN */
- if (value > 0.0F)
- return COND_GT;
- if (value < 0.0F)
- return COND_LT;
- return COND_EQ;
-}
-
-
-/**
- * Test if the ccMaskRule is satisfied by the given condition code.
- * Used to mask destination writes according to the current condition code.
- */
-static inline GLboolean
-test_cc(GLuint condCode, GLuint ccMaskRule)
-{
- switch (ccMaskRule) {
- case COND_EQ: return (condCode == COND_EQ);
- case COND_NE: return (condCode != COND_EQ);
- case COND_LT: return (condCode == COND_LT);
- case COND_GE: return (condCode == COND_GT || condCode == COND_EQ);
- case COND_LE: return (condCode == COND_LT || condCode == COND_EQ);
- case COND_GT: return (condCode == COND_GT);
- case COND_TR: return GL_TRUE;
- case COND_FL: return GL_FALSE;
- default: return GL_TRUE;
- }
-}
-
-
-/**
- * Evaluate the 4 condition codes against a predicate and return GL_TRUE
- * or GL_FALSE to indicate result.
- */
-static inline GLboolean
-eval_condition(const struct gl_program_machine *machine,
- const struct prog_instruction *inst)
-{
- const GLuint swizzle = inst->DstReg.CondSwizzle;
- const GLuint condMask = inst->DstReg.CondMask;
- if (test_cc(machine->CondCodes[GET_SWZ(swizzle, 0)], condMask) ||
- test_cc(machine->CondCodes[GET_SWZ(swizzle, 1)], condMask) ||
- test_cc(machine->CondCodes[GET_SWZ(swizzle, 2)], condMask) ||
- test_cc(machine->CondCodes[GET_SWZ(swizzle, 3)], condMask)) {
- return GL_TRUE;
- }
- else {
- return GL_FALSE;
- }
-}
-
-
-
/**
* Store 4 floats into a register. Observe the instructions saturate and
* set-condition-code flags.
value = clampedValue;
}
- if (dstReg->CondMask != COND_TR) {
- /* condition codes may turn off some writes */
- if (writeMask & WRITEMASK_X) {
- if (!test_cc(machine->CondCodes[GET_SWZ(dstReg->CondSwizzle, 0)],
- dstReg->CondMask))
- writeMask &= ~WRITEMASK_X;
- }
- if (writeMask & WRITEMASK_Y) {
- if (!test_cc(machine->CondCodes[GET_SWZ(dstReg->CondSwizzle, 1)],
- dstReg->CondMask))
- writeMask &= ~WRITEMASK_Y;
- }
- if (writeMask & WRITEMASK_Z) {
- if (!test_cc(machine->CondCodes[GET_SWZ(dstReg->CondSwizzle, 2)],
- dstReg->CondMask))
- writeMask &= ~WRITEMASK_Z;
- }
- if (writeMask & WRITEMASK_W) {
- if (!test_cc(machine->CondCodes[GET_SWZ(dstReg->CondSwizzle, 3)],
- dstReg->CondMask))
- writeMask &= ~WRITEMASK_W;
- }
- }
-
#ifdef NAN_CHECK
assert(!IS_INF_OR_NAN(value[0]));
assert(!IS_INF_OR_NAN(value[0]));
dst[2] = value[2];
if (writeMask & WRITEMASK_W)
dst[3] = value[3];
-
- if (inst->CondUpdate) {
- if (writeMask & WRITEMASK_X)
- machine->CondCodes[0] = generate_cc(value[0]);
- if (writeMask & WRITEMASK_Y)
- machine->CondCodes[1] = generate_cc(value[1]);
- if (writeMask & WRITEMASK_Z)
- machine->CondCodes[2] = generate_cc(value[2]);
- if (writeMask & WRITEMASK_W)
- machine->CondCodes[3] = generate_cc(value[3]);
-#if DEBUG_PROG
- printf("CondCodes=(%s,%s,%s,%s) for:\n",
- _mesa_condcode_string(machine->CondCodes[0]),
- _mesa_condcode_string(machine->CondCodes[1]),
- _mesa_condcode_string(machine->CondCodes[2]),
- _mesa_condcode_string(machine->CondCodes[3]));
-#endif
- }
}
const struct gl_program *program,
struct gl_program_machine *machine)
{
- const GLuint numInst = program->NumInstructions;
+ const GLuint numInst = program->arb.NumInstructions;
const GLuint maxExec = 65536;
GLuint pc, numExec = 0;
}
for (pc = 0; pc < numInst; pc++) {
- const struct prog_instruction *inst = program->Instructions + pc;
+ const struct prog_instruction *inst = program->arb.Instructions + pc;
if (DEBUG_PROG) {
_mesa_print_instruction(inst);
break;
case OPCODE_BGNLOOP:
/* no-op */
- assert(program->Instructions[inst->BranchTarget].Opcode
+ assert(program->arb.Instructions[inst->BranchTarget].Opcode
== OPCODE_ENDLOOP);
break;
case OPCODE_ENDLOOP:
/* subtract 1 here since pc is incremented by for(pc) loop */
- assert(program->Instructions[inst->BranchTarget].Opcode
+ assert(program->arb.Instructions[inst->BranchTarget].Opcode
== OPCODE_BGNLOOP);
pc = inst->BranchTarget - 1; /* go to matching BNGLOOP */
break;
case OPCODE_ENDSUB: /* end subroutine */
break;
case OPCODE_BRK: /* break out of loop (conditional) */
- assert(program->Instructions[inst->BranchTarget].Opcode
+ assert(program->arb.Instructions[inst->BranchTarget].Opcode
== OPCODE_ENDLOOP);
- if (eval_condition(machine, inst)) {
- /* break out of loop */
- /* pc++ at end of for-loop will put us after the ENDLOOP inst */
- pc = inst->BranchTarget;
- }
+ /* break out of loop */
+ /* pc++ at end of for-loop will put us after the ENDLOOP inst */
+ pc = inst->BranchTarget;
break;
case OPCODE_CONT: /* continue loop (conditional) */
- assert(program->Instructions[inst->BranchTarget].Opcode
+ assert(program->arb.Instructions[inst->BranchTarget].Opcode
== OPCODE_ENDLOOP);
- if (eval_condition(machine, inst)) {
- /* continue at ENDLOOP */
- /* Subtract 1 here since we'll do pc++ at end of for-loop */
- pc = inst->BranchTarget - 1;
- }
+ /* continue at ENDLOOP */
+ /* Subtract 1 here since we'll do pc++ at end of for-loop */
+ pc = inst->BranchTarget - 1;
break;
case OPCODE_CAL: /* Call subroutine (conditional) */
- if (eval_condition(machine, inst)) {
- /* call the subroutine */
- if (machine->StackDepth >= MAX_PROGRAM_CALL_DEPTH) {
- return GL_TRUE; /* Per GL_NV_vertex_program2 spec */
- }
- machine->CallStack[machine->StackDepth++] = pc + 1; /* next inst */
- /* Subtract 1 here since we'll do pc++ at end of for-loop */
- pc = inst->BranchTarget - 1;
+ /* call the subroutine */
+ if (machine->StackDepth >= MAX_PROGRAM_CALL_DEPTH) {
+ return GL_TRUE; /* Per GL_NV_vertex_program2 spec */
}
+ machine->CallStack[machine->StackDepth++] = pc + 1; /* next inst */
+ /* Subtract 1 here since we'll do pc++ at end of for-loop */
+ pc = inst->BranchTarget - 1;
break;
case OPCODE_CMP:
{
case OPCODE_IF:
{
GLboolean cond;
- assert(program->Instructions[inst->BranchTarget].Opcode
+ assert(program->arb.Instructions[inst->BranchTarget].Opcode
== OPCODE_ELSE ||
- program->Instructions[inst->BranchTarget].Opcode
+ program->arb.Instructions[inst->BranchTarget].Opcode
== OPCODE_ENDIF);
/* eval condition */
- if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) {
- GLfloat a[4];
- fetch_vector1(&inst->SrcReg[0], machine, a);
- cond = (a[0] != 0.0F);
- }
- else {
- cond = eval_condition(machine, inst);
- }
+ GLfloat a[4];
+ fetch_vector1(&inst->SrcReg[0], machine, a);
+ cond = (a[0] != 0.0F);
if (DEBUG_PROG) {
printf("IF: %d\n", cond);
}
break;
case OPCODE_ELSE:
/* goto ENDIF */
- assert(program->Instructions[inst->BranchTarget].Opcode
+ assert(program->arb.Instructions[inst->BranchTarget].Opcode
== OPCODE_ENDIF);
assert(inst->BranchTarget >= 0);
pc = inst->BranchTarget;
case OPCODE_ENDIF:
/* nothing */
break;
- case OPCODE_KIL_NV: /* NV_f_p only (conditional) */
- if (eval_condition(machine, inst)) {
- return GL_FALSE;
- }
- break;
case OPCODE_KIL: /* ARB_f_p only */
{
GLfloat a[4];
}
break;
case OPCODE_RET: /* return from subroutine (conditional) */
- if (eval_condition(machine, inst)) {
- if (machine->StackDepth == 0) {
- return GL_TRUE; /* Per GL_NV_vertex_program2 spec */
- }
- /* subtract one because of pc++ in the for loop */
- pc = machine->CallStack[--machine->StackDepth] - 1;
+ if (machine->StackDepth == 0) {
+ return GL_TRUE; /* Per GL_NV_vertex_program2 spec */
}
+ /* subtract one because of pc++ in the for loop */
+ pc = machine->CallStack[--machine->StackDepth] - 1;
break;
case OPCODE_RSQ: /* 1 / sqrt() */
{
store_vector4(inst, machine, result);
}
break;
- case OPCODE_SEQ: /* set on equal */
- {
- GLfloat a[4], b[4], result[4];
- fetch_vector4(&inst->SrcReg[0], machine, a);
- fetch_vector4(&inst->SrcReg[1], machine, b);
- result[0] = (a[0] == b[0]) ? 1.0F : 0.0F;
- result[1] = (a[1] == b[1]) ? 1.0F : 0.0F;
- result[2] = (a[2] == b[2]) ? 1.0F : 0.0F;
- result[3] = (a[3] == b[3]) ? 1.0F : 0.0F;
- store_vector4(inst, machine, result);
- if (DEBUG_PROG) {
- printf("SEQ (%g %g %g %g) = (%g %g %g %g) == (%g %g %g %g)\n",
- result[0], result[1], result[2], result[3],
- a[0], a[1], a[2], a[3],
- b[0], b[1], b[2], b[3]);
- }
- }
- break;
case OPCODE_SGE: /* set on greater or equal */
{
GLfloat a[4], b[4], result[4];
}
}
break;
- case OPCODE_SGT: /* set on greater */
- {
- GLfloat a[4], b[4], result[4];
- fetch_vector4(&inst->SrcReg[0], machine, a);
- fetch_vector4(&inst->SrcReg[1], machine, b);
- result[0] = (a[0] > b[0]) ? 1.0F : 0.0F;
- result[1] = (a[1] > b[1]) ? 1.0F : 0.0F;
- result[2] = (a[2] > b[2]) ? 1.0F : 0.0F;
- result[3] = (a[3] > b[3]) ? 1.0F : 0.0F;
- store_vector4(inst, machine, result);
- if (DEBUG_PROG) {
- printf("SGT (%g %g %g %g) = (%g %g %g %g) > (%g %g %g %g)\n",
- result[0], result[1], result[2], result[3],
- a[0], a[1], a[2], a[3],
- b[0], b[1], b[2], b[3]);
- }
- }
- break;
case OPCODE_SIN:
{
GLfloat a[4], result[4];
store_vector4(inst, machine, result);
}
break;
- case OPCODE_SLE: /* set on less or equal */
- {
- GLfloat a[4], b[4], result[4];
- fetch_vector4(&inst->SrcReg[0], machine, a);
- fetch_vector4(&inst->SrcReg[1], machine, b);
- result[0] = (a[0] <= b[0]) ? 1.0F : 0.0F;
- result[1] = (a[1] <= b[1]) ? 1.0F : 0.0F;
- result[2] = (a[2] <= b[2]) ? 1.0F : 0.0F;
- result[3] = (a[3] <= b[3]) ? 1.0F : 0.0F;
- store_vector4(inst, machine, result);
- if (DEBUG_PROG) {
- printf("SLE (%g %g %g %g) = (%g %g %g %g) <= (%g %g %g %g)\n",
- result[0], result[1], result[2], result[3],
- a[0], a[1], a[2], a[3],
- b[0], b[1], b[2], b[3]);
- }
- }
- break;
case OPCODE_SLT: /* set on less */
{
GLfloat a[4], b[4], result[4];
}
}
break;
- case OPCODE_SNE: /* set on not equal */
- {
- GLfloat a[4], b[4], result[4];
- fetch_vector4(&inst->SrcReg[0], machine, a);
- fetch_vector4(&inst->SrcReg[1], machine, b);
- result[0] = (a[0] != b[0]) ? 1.0F : 0.0F;
- result[1] = (a[1] != b[1]) ? 1.0F : 0.0F;
- result[2] = (a[2] != b[2]) ? 1.0F : 0.0F;
- result[3] = (a[3] != b[3]) ? 1.0F : 0.0F;
- store_vector4(inst, machine, result);
- if (DEBUG_PROG) {
- printf("SNE (%g %g %g %g) = (%g %g %g %g) != (%g %g %g %g)\n",
- result[0], result[1], result[2], result[3],
- a[0], a[1], a[2], a[3],
- b[0], b[1], b[2], b[3]);
- }
- }
- break;
case OPCODE_SSG: /* set sign (-1, 0 or +1) */
{
GLfloat a[4], result[4];
store_vector4(inst, machine, color);
}
break;
- case OPCODE_TXD: /* GL_NV_fragment_program only */
+ case OPCODE_TXD:
/* Texture lookup w/ partial derivatives for LOD */
{
GLfloat texcoord[4], dtdx[4], dtdy[4], color[4];
store_vector4(inst, machine, color);
}
break;
- case OPCODE_TXP_NV: /* GL_NV_fragment_program only */
- /* Texture lookup w/ projective divide, as above, but do not
- * do the divide by w if sampling from a cube map.
- */
- {
- GLfloat texcoord[4], color[4];
-
- fetch_vector4(&inst->SrcReg[0], machine, texcoord);
- if (inst->TexSrcTarget != TEXTURE_CUBE_INDEX &&
- texcoord[3] != 0.0F) {
- texcoord[0] /= texcoord[3];
- texcoord[1] /= texcoord[3];
- texcoord[2] /= texcoord[3];
- }
-
- fetch_texel(ctx, machine, inst, texcoord, 0.0, color);
-
- store_vector4(inst, machine, color);
- }
- break;
case OPCODE_TRUNC: /* truncate toward zero */
{
GLfloat a[4], result[4];
projects / mesa.git / blobdiff