diff options
| -rw-r--r-- | src/mesa/shader/nvvertexec.c | 884 |
1 files changed, 471 insertions, 413 deletions
diff --git a/src/mesa/shader/nvvertexec.c b/src/mesa/shader/nvvertexec.c index d870f3c186..cf7b3d448d 100644 --- a/src/mesa/shader/nvvertexec.c +++ b/src/mesa/shader/nvvertexec.c @@ -511,442 +511,500 @@ _mesa_exec_vertex_program(GLcontext *ctx, } 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 */ |