}
switch (inst->Opcode) {
- case OPCODE_MOV:
- {
- GLfloat t[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- store_vector4( inst, machine, t );
- }
- break;
- case OPCODE_LIT:
- {
- const GLfloat epsilon = 1.0F / 256.0F; /* per NV spec */
- GLfloat t[4], lit[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- t[0] = MAX2(t[0], 0.0F);
- t[1] = MAX2(t[1], 0.0F);
- t[3] = CLAMP(t[3], -(128.0F - epsilon), (128.0F - epsilon));
- lit[0] = 1.0;
- lit[1] = t[0];
- lit[2] = (t[0] > 0.0) ? (GLfloat) _mesa_pow(t[1], t[3]) : 0.0F;
- lit[3] = 1.0;
- store_vector4( inst, machine, lit );
+ case OPCODE_ABS: /* GL_NV_vertex_program1_1 */
+ {
+ GLfloat t[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ if (t[0] < 0.0) t[0] = -t[0];
+ if (t[1] < 0.0) t[1] = -t[1];
+ if (t[2] < 0.0) t[2] = -t[2];
+ if (t[3] < 0.0) t[3] = -t[3];
+ store_vector4( inst, machine, t );
+ }
+ break;
+ case OPCODE_ADD:
+ {
+ GLfloat t[4], u[4], sum[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
+ sum[0] = t[0] + u[0];
+ sum[1] = t[1] + u[1];
+ sum[2] = t[2] + u[2];
+ sum[3] = t[3] + u[3];
+ store_vector4( inst, machine, sum );
+ }
+ break;
+ case OPCODE_ARA:
+ break;
+ case OPCODE_ARL:
+ {
+ GLfloat t[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ machine->AddressReg[0][0] = (GLint) FLOORF(t[0]);
+ }
+ break;
+ case OPCODE_ARL_NV:
+ break;
+ case OPCODE_ARR:
+ break;
+ case OPCODE_BGNLOOP:
+ /* no-op */
+ break;
+ case OPCODE_ENDLOOP:
+ /* subtract 1 here since pc is incremented by for(pc) loop */
+ pc = inst->BranchTarget - 1; /* go to matching BNGLOOP */
+ break;
+ case OPCODE_BRA: /* branch (conditional) */
+ /* fall-through */
+ case OPCODE_BRK: /* break out of loop (conditional) */
+ /* fall-through */
+ case OPCODE_CONT: /* continue loop (conditional) */
+ if (eval_condition(machine, inst)) {
+ /* take branch */
+ /* 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; /* abort execution */
}
- break;
- case OPCODE_RCP:
- {
- GLfloat t[4];
- fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
- if (t[0] != 1.0F)
- t[0] = 1.0F / t[0]; /* div by zero is infinity! */
- t[1] = t[2] = t[3] = t[0];
- store_vector4( inst, machine, t );
+ machine->CallStack[machine->StackDepth++] = pc + 1;
+ pc = inst->BranchTarget; /* XXX - 1 ??? */
+ }
+ break;
+ case OPCODE_CMP:
+ {
+ GLfloat a[4], b[4], c[4], result[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b );
+ fetch_vector4( ctx, &inst->SrcReg[2], machine, program, c );
+ result[0] = a[0] < 0.0F ? b[0] : c[0];
+ result[1] = a[1] < 0.0F ? b[1] : c[1];
+ result[2] = a[2] < 0.0F ? b[2] : c[2];
+ result[3] = a[3] < 0.0F ? b[3] : c[3];
+ store_vector4( inst, machine, result );
+ }
+ break;
+ case OPCODE_COS:
+ {
+ GLfloat a[4], result[4];
+ fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a );
+ result[0] = result[1] = result[2] = result[3]
+ = (GLfloat) _mesa_cos(a[0]);
+ store_vector4( inst, machine, result );
+ }
+ break;
+ case OPCODE_DDX:
+ /* fallthrough */
+ case OPCODE_DDY:
+ _mesa_problem(ctx, "DDX/DDY not allowed in vertex programs");
+ break;
+
+ case OPCODE_DP3:
+ {
+ GLfloat t[4], u[4], dot[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
+ dot[0] = t[0] * u[0] + t[1] * u[1] + t[2] * u[2];
+ dot[1] = dot[2] = dot[3] = dot[0];
+ store_vector4( inst, machine, dot );
+ }
+ break;
+ case OPCODE_DP4:
+ {
+ GLfloat t[4], u[4], dot[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
+ dot[0] = t[0] * u[0] + t[1] * u[1] + t[2] * u[2] + t[3] * u[3];
+ dot[1] = dot[2] = dot[3] = dot[0];
+ store_vector4( inst, machine, dot );
+ }
+ break;
+ case OPCODE_DPH:
+ {
+ GLfloat t[4], u[4], dot[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
+ dot[0] = t[0] * u[0] + t[1] * u[1] + t[2] * u[2] + u[3];
+ dot[1] = dot[2] = dot[3] = dot[0];
+ store_vector4( inst, machine, dot );
+ }
+ break;
+ case OPCODE_DST:
+ {
+ GLfloat t[4], u[4], dst[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
+ dst[0] = 1.0F;
+ dst[1] = t[1] * u[1];
+ dst[2] = t[2];
+ dst[3] = u[3];
+ store_vector4( inst, machine, dst );
+ }
+ break;
+ case OPCODE_EXP:
+ {
+ GLfloat t[4], q[4], floor_t0;
+ fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
+ floor_t0 = FLOORF(t[0]);
+ if (floor_t0 > FLT_MAX_EXP) {
+ SET_POS_INFINITY(q[0]);
+ SET_POS_INFINITY(q[2]);
}
- break;
- case OPCODE_RSQ:
- {
- GLfloat t[4];
- fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
- t[0] = INV_SQRTF(FABSF(t[0]));
- t[1] = t[2] = t[3] = t[0];
- store_vector4( inst, machine, t );
+ else if (floor_t0 < FLT_MIN_EXP) {
+ q[0] = 0.0F;
+ q[2] = 0.0F;
}
- break;
- case OPCODE_EXP:
- {
- GLfloat t[4], q[4], floor_t0;
- fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
- floor_t0 = FLOORF(t[0]);
- if (floor_t0 > FLT_MAX_EXP) {
- SET_POS_INFINITY(q[0]);
- SET_POS_INFINITY(q[2]);
- }
- else if (floor_t0 < FLT_MIN_EXP) {
- q[0] = 0.0F;
- q[2] = 0.0F;
- }
- else {
+ else {
#ifdef USE_IEEE
- GLint ii = (GLint) floor_t0;
- ii = (ii < 23) + 0x3f800000;
- SET_FLOAT_BITS(q[0], ii);
- q[0] = *((GLfloat *) (void *)&ii);
+ GLint ii = (GLint) floor_t0;
+ ii = (ii < 23) + 0x3f800000;
+ SET_FLOAT_BITS(q[0], ii);
+ q[0] = *((GLfloat *) (void *)&ii);
#else
- q[0] = (GLfloat) pow(2.0, floor_t0);
+ q[0] = (GLfloat) pow(2.0, floor_t0);
#endif
- q[2] = (GLfloat) (q[0] * LOG2(q[1]));
- }
- q[1] = t[0] - floor_t0;
- q[3] = 1.0F;
- store_vector4( inst, machine, q );
+ q[2] = (GLfloat) (q[0] * LOG2(q[1]));
}
- break;
- case OPCODE_LOG:
- {
- GLfloat t[4], q[4], abs_t0;
- fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
- abs_t0 = FABSF(t[0]);
- if (abs_t0 != 0.0F) {
- /* Since we really can't handle infinite values on VMS
- * like other OSes we'll use __MAXFLOAT to represent
- * infinity. This may need some tweaking.
- */
+ q[1] = t[0] - floor_t0;
+ q[3] = 1.0F;
+ store_vector4( inst, machine, q );
+ }
+ break;
+ case OPCODE_EX2: /* GL_ARB_vertex_program */
+ {
+ GLfloat t[4];
+ fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
+ t[0] = t[1] = t[2] = t[3] = (GLfloat)_mesa_pow(2.0, t[0]);
+ store_vector4( inst, machine, t );
+ }
+ break;
+ case OPCODE_FLR: /* GL_ARB_vertex_program */
+ {
+ GLfloat t[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ t[0] = FLOORF(t[0]);
+ t[1] = FLOORF(t[1]);
+ t[2] = FLOORF(t[2]);
+ t[3] = FLOORF(t[3]);
+ store_vector4( inst, machine, t );
+ }
+ break;
+ case OPCODE_FRC: /* GL_ARB_vertex_program */
+ {
+ GLfloat t[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ t[0] = t[0] - FLOORF(t[0]);
+ t[1] = t[1] - FLOORF(t[1]);
+ t[2] = t[2] - FLOORF(t[2]);
+ t[3] = t[3] - FLOORF(t[3]);
+ store_vector4( inst, machine, t );
+ }
+ break;
+ case OPCODE_IF:
+ if (eval_condition(machine, inst)) {
+ /* do if-clause (just continue execution) */
+ }
+ else {
+ /* go to the instruction after ELSE or ENDIF */
+ assert(inst->BranchTarget >= 0);
+ pc = inst->BranchTarget - 1;
+ }
+ break;
+ case OPCODE_ELSE:
+ /* goto ENDIF */
+ assert(inst->BranchTarget >= 0);
+ pc = inst->BranchTarget - 1;
+ break;
+ case OPCODE_ENDIF:
+ /* nothing */
+ break;
+ case OPCODE_MOV:
+ {
+ GLfloat t[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ store_vector4( inst, machine, t );
+ }
+ break;
+ case OPCODE_LIT:
+ {
+ const GLfloat epsilon = 1.0F / 256.0F; /* per NV spec */
+ GLfloat t[4], lit[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ t[0] = MAX2(t[0], 0.0F);
+ t[1] = MAX2(t[1], 0.0F);
+ t[3] = CLAMP(t[3], -(128.0F - epsilon), (128.0F - epsilon));
+ lit[0] = 1.0;
+ lit[1] = t[0];
+ lit[2] = (t[0] > 0.0) ? (GLfloat) _mesa_pow(t[1], t[3]) : 0.0F;
+ lit[3] = 1.0;
+ store_vector4( inst, machine, lit );
+ }
+ break;
+ case OPCODE_LOG:
+ {
+ GLfloat t[4], q[4], abs_t0;
+ fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
+ abs_t0 = FABSF(t[0]);
+ if (abs_t0 != 0.0F) {
+ /* Since we really can't handle infinite values on VMS
+ * like other OSes we'll use __MAXFLOAT to represent
+ * infinity. This may need some tweaking.
+ */
#ifdef VMS
- if (abs_t0 == __MAXFLOAT)
+ if (abs_t0 == __MAXFLOAT)
#else
- if (IS_INF_OR_NAN(abs_t0))
+ if (IS_INF_OR_NAN(abs_t0))
#endif
- {
- SET_POS_INFINITY(q[0]);
- q[1] = 1.0F;
- SET_POS_INFINITY(q[2]);
- }
- else {
- int exponent;
- GLfloat mantissa = FREXPF(t[0], &exponent);
- q[0] = (GLfloat) (exponent - 1);
- q[1] = (GLfloat) (2.0 * mantissa); /* map [.5, 1) -> [1, 2) */
- q[2] = (GLfloat) (q[0] + LOG2(q[1]));
- }
- }
- else {
- SET_NEG_INFINITY(q[0]);
+ {
+ SET_POS_INFINITY(q[0]);
q[1] = 1.0F;
- SET_NEG_INFINITY(q[2]);
+ SET_POS_INFINITY(q[2]);
}
- q[3] = 1.0;
- store_vector4( inst, machine, q );
- }
- break;
- case OPCODE_MUL:
- {
- GLfloat t[4], u[4], prod[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
- prod[0] = t[0] * u[0];
- prod[1] = t[1] * u[1];
- prod[2] = t[2] * u[2];
- prod[3] = t[3] * u[3];
- store_vector4( inst, machine, prod );
- }
- break;
- case OPCODE_ADD:
- {
- GLfloat t[4], u[4], sum[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
- sum[0] = t[0] + u[0];
- sum[1] = t[1] + u[1];
- sum[2] = t[2] + u[2];
- sum[3] = t[3] + u[3];
- store_vector4( inst, machine, sum );
- }
- break;
- case OPCODE_DP3:
- {
- GLfloat t[4], u[4], dot[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
- dot[0] = t[0] * u[0] + t[1] * u[1] + t[2] * u[2];
- dot[1] = dot[2] = dot[3] = dot[0];
- store_vector4( inst, machine, dot );
- }
- break;
- case OPCODE_DP4:
- {
- GLfloat t[4], u[4], dot[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
- dot[0] = t[0] * u[0] + t[1] * u[1] + t[2] * u[2] + t[3] * u[3];
- dot[1] = dot[2] = dot[3] = dot[0];
- store_vector4( inst, machine, dot );
- }
- break;
- case OPCODE_DST:
- {
- GLfloat t[4], u[4], dst[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
- dst[0] = 1.0F;
- dst[1] = t[1] * u[1];
- dst[2] = t[2];
- dst[3] = u[3];
- store_vector4( inst, machine, dst );
- }
- break;
- case OPCODE_MIN:
- {
- GLfloat t[4], u[4], min[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
- min[0] = (t[0] < u[0]) ? t[0] : u[0];
- min[1] = (t[1] < u[1]) ? t[1] : u[1];
- min[2] = (t[2] < u[2]) ? t[2] : u[2];
- min[3] = (t[3] < u[3]) ? t[3] : u[3];
- store_vector4( inst, machine, min );
- }
- break;
- case OPCODE_MAX:
- {
- GLfloat t[4], u[4], max[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
- max[0] = (t[0] > u[0]) ? t[0] : u[0];
- max[1] = (t[1] > u[1]) ? t[1] : u[1];
- max[2] = (t[2] > u[2]) ? t[2] : u[2];
- max[3] = (t[3] > u[3]) ? t[3] : u[3];
- store_vector4( inst, machine, max );
- }
- break;
- case OPCODE_SLT:
- {
- GLfloat t[4], u[4], slt[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
- slt[0] = (t[0] < u[0]) ? 1.0F : 0.0F;
- slt[1] = (t[1] < u[1]) ? 1.0F : 0.0F;
- slt[2] = (t[2] < u[2]) ? 1.0F : 0.0F;
- slt[3] = (t[3] < u[3]) ? 1.0F : 0.0F;
- store_vector4( inst, machine, slt );
- }
- break;
- case OPCODE_SGE:
- {
- GLfloat t[4], u[4], sge[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
- sge[0] = (t[0] >= u[0]) ? 1.0F : 0.0F;
- sge[1] = (t[1] >= u[1]) ? 1.0F : 0.0F;
- sge[2] = (t[2] >= u[2]) ? 1.0F : 0.0F;
- sge[3] = (t[3] >= u[3]) ? 1.0F : 0.0F;
- store_vector4( inst, machine, sge );
- }
- break;
- case OPCODE_SGT: /* set on greater */
- {
- GLfloat a[4], b[4], result[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, 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_VERT) {
- printf("SGT %g %g %g %g\n",
- result[0], result[1], result[2], result[3]);
+ else {
+ int exponent;
+ GLfloat mantissa = FREXPF(t[0], &exponent);
+ q[0] = (GLfloat) (exponent - 1);
+ q[1] = (GLfloat) (2.0 * mantissa); /* map [.5, 1) -> [1, 2) */
+ q[2] = (GLfloat) (q[0] + LOG2(q[1]));
}
}
- break;
- case OPCODE_MAD:
- {
- GLfloat t[4], u[4], v[4], sum[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
- fetch_vector4( ctx, &inst->SrcReg[2], machine, program, v );
- sum[0] = t[0] * u[0] + v[0];
- sum[1] = t[1] * u[1] + v[1];
- sum[2] = t[2] * u[2] + v[2];
- sum[3] = t[3] * u[3] + v[3];
- store_vector4( inst, machine, sum );
- }
- break;
- case OPCODE_ARL:
- {
- GLfloat t[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- machine->AddressReg[0][0] = (GLint) FLOORF(t[0]);
+ else {
+ SET_NEG_INFINITY(q[0]);
+ q[1] = 1.0F;
+ SET_NEG_INFINITY(q[2]);
}
- break;
- case OPCODE_DPH:
- {
- GLfloat t[4], u[4], dot[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
- dot[0] = t[0] * u[0] + t[1] * u[1] + t[2] * u[2] + u[3];
- dot[1] = dot[2] = dot[3] = dot[0];
- store_vector4( inst, machine, dot );
+ q[3] = 1.0;
+ store_vector4( inst, machine, q );
+ }
+ break;
+ case OPCODE_MAD:
+ {
+ GLfloat t[4], u[4], v[4], sum[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
+ fetch_vector4( ctx, &inst->SrcReg[2], machine, program, v );
+ sum[0] = t[0] * u[0] + v[0];
+ sum[1] = t[1] * u[1] + v[1];
+ sum[2] = t[2] * u[2] + v[2];
+ sum[3] = t[3] * u[3] + v[3];
+ store_vector4( inst, machine, sum );
+ }
+ break;
+ case OPCODE_MAX:
+ {
+ GLfloat t[4], u[4], max[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
+ max[0] = (t[0] > u[0]) ? t[0] : u[0];
+ max[1] = (t[1] > u[1]) ? t[1] : u[1];
+ max[2] = (t[2] > u[2]) ? t[2] : u[2];
+ max[3] = (t[3] > u[3]) ? t[3] : u[3];
+ store_vector4( inst, machine, max );
+ }
+ break;
+ case OPCODE_MIN:
+ {
+ GLfloat t[4], u[4], min[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
+ min[0] = (t[0] < u[0]) ? t[0] : u[0];
+ min[1] = (t[1] < u[1]) ? t[1] : u[1];
+ min[2] = (t[2] < u[2]) ? t[2] : u[2];
+ min[3] = (t[3] < u[3]) ? t[3] : u[3];
+ store_vector4( inst, machine, min );
+ }
+ break;
+ case OPCODE_MUL:
+ {
+ GLfloat t[4], u[4], prod[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
+ prod[0] = t[0] * u[0];
+ prod[1] = t[1] * u[1];
+ prod[2] = t[2] * u[2];
+ prod[3] = t[3] * u[3];
+ store_vector4( inst, machine, prod );
+ }
+ break;
+ case OPCODE_RCP:
+ {
+ GLfloat t[4];
+ fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
+ if (t[0] != 1.0F)
+ t[0] = 1.0F / t[0]; /* div by zero is infinity! */
+ t[1] = t[2] = t[3] = t[0];
+ store_vector4( inst, machine, t );
+ }
+ break;
+ case OPCODE_RSQ:
+ {
+ GLfloat t[4];
+ fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
+ t[0] = INV_SQRTF(FABSF(t[0]));
+ t[1] = t[2] = t[3] = t[0];
+ store_vector4( inst, machine, t );
+ }
+ break;
+ case OPCODE_SLT:
+ {
+ GLfloat t[4], u[4], slt[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
+ slt[0] = (t[0] < u[0]) ? 1.0F : 0.0F;
+ slt[1] = (t[1] < u[1]) ? 1.0F : 0.0F;
+ slt[2] = (t[2] < u[2]) ? 1.0F : 0.0F;
+ slt[3] = (t[3] < u[3]) ? 1.0F : 0.0F;
+ store_vector4( inst, machine, slt );
+ }
+ break;
+ case OPCODE_SGE:
+ {
+ GLfloat t[4], u[4], sge[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
+ sge[0] = (t[0] >= u[0]) ? 1.0F : 0.0F;
+ sge[1] = (t[1] >= u[1]) ? 1.0F : 0.0F;
+ sge[2] = (t[2] >= u[2]) ? 1.0F : 0.0F;
+ sge[3] = (t[3] >= u[3]) ? 1.0F : 0.0F;
+ store_vector4( inst, machine, sge );
+ }
+ break;
+ case OPCODE_SGT: /* set on greater */
+ {
+ GLfloat a[4], b[4], result[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, 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_VERT) {
+ printf("SGT %g %g %g %g\n",
+ result[0], result[1], result[2], result[3]);
}
- break;
- case OPCODE_RCC:
- {
- GLfloat t[4], u;
- fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
- if (t[0] == 1.0F)
- u = 1.0F;
- else
- u = 1.0F / t[0];
- if (u > 0.0F) {
- if (u > 1.884467e+019F) {
- u = 1.884467e+019F; /* IEEE 32-bit binary value 0x5F800000 */
- }
- else if (u < 5.42101e-020F) {
- u = 5.42101e-020F; /* IEEE 32-bit binary value 0x1F800000 */
- }
+ }
+ break;
+ case OPCODE_RCC:
+ {
+ GLfloat t[4], u;
+ fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
+ if (t[0] == 1.0F)
+ u = 1.0F;
+ else
+ u = 1.0F / t[0];
+ if (u > 0.0F) {
+ if (u > 1.884467e+019F) {
+ u = 1.884467e+019F; /* IEEE 32-bit binary value 0x5F800000 */
}
- else {
- if (u < -1.884467e+019F) {
- u = -1.884467e+019F; /* IEEE 32-bit binary value 0xDF800000 */
- }
- else if (u > -5.42101e-020F) {
- u = -5.42101e-020F; /* IEEE 32-bit binary value 0x9F800000 */
- }
+ else if (u < 5.42101e-020F) {
+ u = 5.42101e-020F; /* IEEE 32-bit binary value 0x1F800000 */
}
- t[0] = t[1] = t[2] = t[3] = u;
- store_vector4( inst, machine, t );
- }
- break;
- case OPCODE_SUB: /* GL_NV_vertex_program1_1 */
- {
- GLfloat t[4], u[4], sum[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
- sum[0] = t[0] - u[0];
- sum[1] = t[1] - u[1];
- sum[2] = t[2] - u[2];
- sum[3] = t[3] - u[3];
- store_vector4( inst, machine, sum );
- }
- break;
- case OPCODE_ABS: /* GL_NV_vertex_program1_1 */
- {
- GLfloat t[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- if (t[0] < 0.0) t[0] = -t[0];
- if (t[1] < 0.0) t[1] = -t[1];
- if (t[2] < 0.0) t[2] = -t[2];
- if (t[3] < 0.0) t[3] = -t[3];
- store_vector4( inst, machine, t );
- }
- break;
- case OPCODE_FLR: /* GL_ARB_vertex_program */
- {
- GLfloat t[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- t[0] = FLOORF(t[0]);
- t[1] = FLOORF(t[1]);
- t[2] = FLOORF(t[2]);
- t[3] = FLOORF(t[3]);
- store_vector4( inst, machine, t );
- }
- break;
- case OPCODE_FRC: /* GL_ARB_vertex_program */
- {
- GLfloat t[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- t[0] = t[0] - FLOORF(t[0]);
- t[1] = t[1] - FLOORF(t[1]);
- t[2] = t[2] - FLOORF(t[2]);
- t[3] = t[3] - FLOORF(t[3]);
- store_vector4( inst, machine, t );
- }
- break;
- case OPCODE_IF:
- if (eval_condition(machine, inst)) {
- /* do if-clause (just continue execution) */
}
else {
- /* go to the instruction after ELSE or ENDIF */
- assert(inst->BranchTarget >= 0);
- pc = inst->BranchTarget - 1;
- }
- break;
- case OPCODE_ELSE:
- /* goto ENDIF */
- assert(inst->BranchTarget >= 0);
- pc = inst->BranchTarget - 1;
- break;
- case OPCODE_ENDIF:
- /* nothing */
- break;
-
- case OPCODE_EX2: /* GL_ARB_vertex_program */
- {
- GLfloat t[4];
- fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
- t[0] = t[1] = t[2] = t[3] = (GLfloat)_mesa_pow(2.0, t[0]);
- store_vector4( inst, machine, t );
- }
- break;
- case OPCODE_LG2: /* GL_ARB_vertex_program */
- {
- GLfloat t[4];
- fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
- t[0] = t[1] = t[2] = t[3] = LOG2(t[0]);
- store_vector4( inst, machine, t );
- }
- break;
- case OPCODE_POW: /* GL_ARB_vertex_program */
- {
- GLfloat t[4], u[4];
- fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector1( ctx, &inst->SrcReg[1], machine, program, u );
- t[0] = t[1] = t[2] = t[3] = (GLfloat)_mesa_pow(t[0], u[0]);
- store_vector4( inst, machine, t );
- }
- break;
- case OPCODE_XPD: /* GL_ARB_vertex_program */
- {
- GLfloat t[4], u[4], cross[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
- cross[0] = t[1] * u[2] - t[2] * u[1];
- cross[1] = t[2] * u[0] - t[0] * u[2];
- cross[2] = t[0] * u[1] - t[1] * u[0];
- cross[3] = 0.0;
- store_vector4( inst, machine, cross );
- }
- break;
- case OPCODE_SWZ: /* GL_ARB_vertex_program */
- {
- const struct prog_src_register *source = &inst->SrcReg[0];
- const GLfloat *src = get_register_pointer(ctx, source,
- machine, program);
- GLfloat result[4];
- GLuint i;
-
- /* do extended swizzling here */
- for (i = 0; i < 4; i++) {
- const GLuint swz = GET_SWZ(source->Swizzle, i);
- if (swz == SWIZZLE_ZERO)
- result[i] = 0.0;
- else if (swz == SWIZZLE_ONE)
- result[i] = 1.0;
- else {
- ASSERT(swz >= 0);
- ASSERT(swz <= 3);
- result[i] = src[swz];
- }
- if (source->NegateBase & (1 << i))
- result[i] = -result[i];
+ if (u < -1.884467e+019F) {
+ u = -1.884467e+019F; /* IEEE 32-bit binary value 0xDF800000 */
+ }
+ else if (u > -5.42101e-020F) {
+ u = -5.42101e-020F; /* IEEE 32-bit binary value 0x9F800000 */
}
- store_vector4( inst, machine, result );
- }
- break;
- case OPCODE_PRINT:
- if (inst->SrcReg[0].File) {
- GLfloat t[4];
- fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
- _mesa_printf("%s%g, %g, %g, %g\n",
- (char *) inst->Data, t[0], t[1], t[2], t[3]);
}
- else {
- _mesa_printf("%s\n", (char *) inst->Data);
+ t[0] = t[1] = t[2] = t[3] = u;
+ store_vector4( inst, machine, t );
+ }
+ break;
+ case OPCODE_SUB: /* GL_NV_vertex_program1_1 */
+ {
+ GLfloat t[4], u[4], sum[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
+ sum[0] = t[0] - u[0];
+ sum[1] = t[1] - u[1];
+ sum[2] = t[2] - u[2];
+ sum[3] = t[3] - u[3];
+ store_vector4( inst, machine, sum );
+ }
+ break;
+ case OPCODE_LG2: /* GL_ARB_vertex_program */
+ {
+ GLfloat t[4];
+ fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
+ t[0] = t[1] = t[2] = t[3] = LOG2(t[0]);
+ store_vector4( inst, machine, t );
+ }
+ break;
+ case OPCODE_POW: /* GL_ARB_vertex_program */
+ {
+ GLfloat t[4], u[4];
+ fetch_vector1( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector1( ctx, &inst->SrcReg[1], machine, program, u );
+ t[0] = t[1] = t[2] = t[3] = (GLfloat)_mesa_pow(t[0], u[0]);
+ store_vector4( inst, machine, t );
+ }
+ break;
+ case OPCODE_XPD: /* GL_ARB_vertex_program */
+ {
+ GLfloat t[4], u[4], cross[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ fetch_vector4( ctx, &inst->SrcReg[1], machine, program, u );
+ cross[0] = t[1] * u[2] - t[2] * u[1];
+ cross[1] = t[2] * u[0] - t[0] * u[2];
+ cross[2] = t[0] * u[1] - t[1] * u[0];
+ cross[3] = 0.0;
+ store_vector4( inst, machine, cross );
+ }
+ break;
+ case OPCODE_SWZ: /* GL_ARB_vertex_program */
+ {
+ const struct prog_src_register *source = &inst->SrcReg[0];
+ const GLfloat *src = get_register_pointer(ctx, source,
+ machine, program);
+ GLfloat result[4];
+ GLuint i;
+
+ /* do extended swizzling here */
+ for (i = 0; i < 4; i++) {
+ const GLuint swz = GET_SWZ(source->Swizzle, i);
+ if (swz == SWIZZLE_ZERO)
+ result[i] = 0.0;
+ else if (swz == SWIZZLE_ONE)
+ result[i] = 1.0;
+ else {
+ ASSERT(swz >= 0);
+ ASSERT(swz <= 3);
+ result[i] = src[swz];
+ }
+ if (source->NegateBase & (1 << i))
+ result[i] = -result[i];
}
- break;
- case OPCODE_END:
- ctx->_CurrentProgram = 0;
- return;
- case OPCODE_BRA:
- /* XXX implement */
- /* FALLTHROUGH */
- case OPCODE_NOP:
- break;
- default:
- /* bad instruction opcode */
- _mesa_problem(ctx, "Bad VP Opcode in _mesa_exec_vertex_program");
- ctx->_CurrentProgram = 0;
- return;
+ store_vector4( inst, machine, result );
+ }
+ break;
+ case OPCODE_PRINT:
+ if (inst->SrcReg[0].File) {
+ GLfloat t[4];
+ fetch_vector4( ctx, &inst->SrcReg[0], machine, program, t );
+ _mesa_printf("%s%g, %g, %g, %g\n",
+ (char *) inst->Data, t[0], t[1], t[2], t[3]);
+ }
+ else {
+ _mesa_printf("%s\n", (char *) inst->Data);
+ }
+ break;
+ case OPCODE_END:
+ ctx->_CurrentProgram = 0;
+ return;
+ case OPCODE_NOP:
+ break;
+ default:
+ /* bad instruction opcode */
+ _mesa_problem(ctx, "Bad VP Opcode in _mesa_exec_vertex_program");
+ ctx->_CurrentProgram = 0;
+ return;
} /* switch */
} /* for */
projects / mesa.git / commitdiff