Port i965 driver to Gallium3D.

This is a squashed commit of i965 branch on
ssh://people.freedesktop.org/~zack/mesa
Because of the porting the branch often didn't compile so
squashing it makes more sense.
The port is still far from complete.

1 files changed, 1356 insertions, 0 deletions

diff --git a/src/mesa/pipe/i965simple/brw_wm_glsl.c b/src/mesa/pipe/i965simple/brw_wm_glsl.c
new file mode 100644
index 0000000000..90e73a605a
--- /dev/null
+++ b/src/mesa/pipe/i965simple/brw_wm_glsl.c
@@ -0,0 +1,1356 @@
+
+#include "brw_context.h"
+#include "brw_eu.h"
+#include "brw_wm.h"
+
+#if 0
+
+/* Only guess, need a flag in gl_fragment_program later */
+boolean brw_wm_is_glsl(struct gl_fragment_program *fp)
+{
+    int i;
+    for (i = 0; i < fp->Base.NumInstructions; i++) {
+	struct prog_instruction *inst = &fp->Base.Instructions[i];
+	switch (inst->Opcode) {
+	    case OPCODE_IF:
+	    case OPCODE_INT:
+	    case OPCODE_ENDIF:
+	    case OPCODE_CAL:
+	    case OPCODE_BRK:
+	    case OPCODE_RET:
+	    case OPCODE_DDX:
+	    case OPCODE_DDY:
+	    case OPCODE_BGNLOOP:
+		return TRUE;
+	    default:
+		break;
+	}
+    }
+    return FALSE;
+}
+
+static void set_reg(struct brw_wm_compile *c, int file, int index,
+	int component, struct brw_reg reg)
+{
+    c->wm_regs[file][index][component].reg = reg;
+    c->wm_regs[file][index][component].inited = TRUE;
+}
+
+static int get_scalar_dst_index(struct prog_instruction *inst)
+{
+    int i;
+    for (i = 0; i < 4; i++)
+	if (inst->DstReg.WriteMask & (1<<i))
+	    break;
+    return i;
+}
+
+static struct brw_reg alloc_tmp(struct brw_wm_compile *c)
+{
+    struct brw_reg reg;
+    reg = brw_vec8_grf(c->tmp_index--, 0);
+    return reg;
+}
+
+static void release_tmps(struct brw_wm_compile *c)
+{
+    c->tmp_index = 127;
+}
+
+static struct brw_reg
+get_reg(struct brw_wm_compile *c, int file, int index, int component, int nr, unsigned neg, unsigned abs)
+{
+    struct brw_reg reg;
+    switch (file) {
+	case PROGRAM_STATE_VAR:
+	case PROGRAM_CONSTANT:
+	case PROGRAM_UNIFORM:
+	    file = PROGRAM_STATE_VAR;
+	    break;
+	case PROGRAM_UNDEFINED:
+	    return brw_null_reg();
+	default:
+	    break;
+    }
+
+    if(c->wm_regs[file][index][component].inited)
+	reg = c->wm_regs[file][index][component].reg;
+    else
+	reg = brw_vec8_grf(c->reg_index, 0);
+
+    if(!c->wm_regs[file][index][component].inited) {
+	set_reg(c, file, index, component, reg);
+	c->reg_index++;
+    }
+
+    if (neg & (1<< component)) {
+	reg = negate(reg);
+    }
+    if (abs)
+	reg = brw_abs(reg);
+    return reg;
+}
+
+static void prealloc_reg(struct brw_wm_compile *c)
+{
+    int i, j;
+    struct brw_reg reg;
+    int nr_interp_regs = 0;
+    unsigned inputs = FRAG_BIT_WPOS | c->fp_interp_emitted | c->fp_deriv_emitted;
+
+    for (i = 0; i < 4; i++) {
+	reg = (i < c->key.nr_depth_regs)
+	    ? brw_vec8_grf(i*2, 0) : brw_vec8_grf(0, 0);
+	set_reg(c, PROGRAM_PAYLOAD, PAYLOAD_DEPTH, i, reg);
+    }
+    c->reg_index += 2*c->key.nr_depth_regs;
+    {
+	int nr_params = c->fp->program.Base.Parameters->NumParameters;
+	struct gl_program_parameter_list *plist =
+	    c->fp->program.Base.Parameters;
+	int index = 0;
+	c->prog_data.nr_params = 4*nr_params;
+	for (i = 0; i < nr_params; i++) {
+	    for (j = 0; j < 4; j++, index++) {
+		reg = brw_vec1_grf(c->reg_index + index/8,
+			index%8);
+		c->prog_data.param[index] =
+		    &plist->ParameterValues[i][j];
+		set_reg(c, PROGRAM_STATE_VAR, i, j, reg);
+	    }
+	}
+	c->nr_creg = 2*((4*nr_params+15)/16);
+	c->reg_index += c->nr_creg;
+    }
+    for (i = 0; i < FRAG_ATTRIB_MAX; i++) {
+	if (inputs & (1<<i)) {
+	    nr_interp_regs++;
+	    reg = brw_vec8_grf(c->reg_index, 0);
+	    for (j = 0; j < 4; j++)
+		set_reg(c, PROGRAM_PAYLOAD, i, j, reg);
+	    c->reg_index += 2;
+
+	}
+    }
+    c->prog_data.first_curbe_grf = c->key.nr_depth_regs * 2;
+    c->prog_data.urb_read_length = nr_interp_regs * 2;
+    c->prog_data.curb_read_length = c->nr_creg;
+    c->emit_mask_reg = brw_uw1_reg(BRW_GENERAL_REGISTER_FILE, c->reg_index, 0);
+    c->reg_index++;
+    c->stack =  brw_uw16_reg(BRW_GENERAL_REGISTER_FILE, c->reg_index, 0);
+    c->reg_index += 2;
+}
+
+static struct brw_reg get_dst_reg(struct brw_wm_compile *c,
+	struct prog_instruction *inst, int component, int nr)
+{
+    return get_reg(c, inst->DstReg.File, inst->DstReg.Index, component, nr,
+	    0, 0);
+}
+
+static struct brw_reg get_src_reg(struct brw_wm_compile *c,
+	struct prog_src_register *src, int index, int nr)
+{
+    int component = GET_SWZ(src->Swizzle, index);
+    return get_reg(c, src->File, src->Index, component, nr,
+	    src->NegateBase, src->Abs);
+}
+
+static void emit_abs( struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    int i;
+    struct brw_compile *p = &c->func;
+    brw_set_saturate(p, inst->SaturateMode != SATURATE_OFF);
+    for (i = 0; i < 4; i++) {
+	if (inst->DstReg.WriteMask & (1<<i)) {
+	    struct brw_reg src, dst;
+	    dst = get_dst_reg(c, inst, i, 1);
+	    src = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	    brw_MOV(p, dst, brw_abs(src));
+	}
+    }
+    brw_set_saturate(p, 0);
+}
+
+static void emit_int( struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    int i;
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+    brw_set_saturate(p, inst->SaturateMode != SATURATE_OFF);
+    for (i = 0; i < 4; i++) {
+	if (mask & (1<<i)) {
+	    struct brw_reg src, dst;
+	    dst = get_dst_reg(c, inst, i, 1) ;
+	    src = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	    brw_RNDD(p, dst, src);
+	}
+    }
+    brw_set_saturate(p, 0);
+}
+
+static void emit_mov( struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    int i;
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+    brw_set_saturate(p, inst->SaturateMode != SATURATE_OFF);
+    for (i = 0; i < 4; i++) {
+	if (mask & (1<<i)) {
+	    struct brw_reg src, dst;
+	    dst = get_dst_reg(c, inst, i, 1);
+	    src = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	    brw_MOV(p, dst, src);
+	}
+    }
+    brw_set_saturate(p, 0);
+}
+
+static void emit_pixel_xy(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_reg r1 = brw_vec1_grf(1, 0);
+    struct brw_reg r1_uw = retype(r1, BRW_REGISTER_TYPE_UW);
+
+    struct brw_reg dst0, dst1;
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+
+    dst0 = get_dst_reg(c, inst, 0, 1);
+    dst1 = get_dst_reg(c, inst, 1, 1);
+    /* Calculate pixel centers by adding 1 or 0 to each of the
+     * micro-tile coordinates passed in r1.
+     */
+    if (mask & WRITEMASK_X) {
+	brw_ADD(p,
+		vec8(retype(dst0, BRW_REGISTER_TYPE_UW)),
+		stride(suboffset(r1_uw, 4), 2, 4, 0),
+		brw_imm_v(0x10101010));
+    }
+
+    if (mask & WRITEMASK_Y) {
+	brw_ADD(p,
+		vec8(retype(dst1, BRW_REGISTER_TYPE_UW)),
+		stride(suboffset(r1_uw, 5), 2, 4, 0),
+		brw_imm_v(0x11001100));
+    }
+
+}
+
+static void emit_delta_xy(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_reg r1 = brw_vec1_grf(1, 0);
+    struct brw_reg dst0, dst1, src0, src1;
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+
+    dst0 = get_dst_reg(c, inst, 0, 1);
+    dst1 = get_dst_reg(c, inst, 1, 1);
+    src0 = get_src_reg(c, &inst->SrcReg[0], 0, 1);
+    src1 = get_src_reg(c, &inst->SrcReg[0], 1, 1);
+    /* Calc delta X,Y by subtracting origin in r1 from the pixel
+     * centers.
+     */
+    if (mask & WRITEMASK_X) {
+	brw_ADD(p,
+		dst0,
+		retype(src0, BRW_REGISTER_TYPE_UW),
+		negate(r1));
+    }
+
+    if (mask & WRITEMASK_Y) {
+	brw_ADD(p,
+		dst1,
+		retype(src1, BRW_REGISTER_TYPE_UW),
+		negate(suboffset(r1,1)));
+
+    }
+
+}
+
+
+static void fire_fb_write( struct brw_wm_compile *c,
+                           unsigned base_reg,
+                           unsigned nr )
+{
+    struct brw_compile *p = &c->func;
+
+    /* Pass through control information:
+     */
+    /*  mov (8) m1.0<1>:ud   r1.0<8;8,1>:ud   { Align1 NoMask } */
+    {
+	brw_push_insn_state(p);
+	brw_set_mask_control(p, BRW_MASK_DISABLE); /* ? */
+	brw_MOV(p,
+		brw_message_reg(base_reg + 1),
+		brw_vec8_grf(1, 0));
+	brw_pop_insn_state(p);
+    }
+    /* Send framebuffer write message: */
+    brw_fb_WRITE(p,
+	    retype(vec8(brw_null_reg()), BRW_REGISTER_TYPE_UW),
+	    base_reg,
+	    retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UW),
+	    0,              /* render surface always 0 */
+	    nr,
+	    0,
+	    1);
+}
+
+static void emit_fb_write(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    int nr = 2;
+    int channel;
+    struct brw_reg src0;//, src1, src2, dst;
+
+    /* Reserve a space for AA - may not be needed:
+     */
+    if (c->key.aa_dest_stencil_reg)
+	nr += 1;
+    {
+	brw_push_insn_state(p);
+	for (channel = 0; channel < 4; channel++) {
+	    src0 = get_src_reg(c,  &inst->SrcReg[0], channel, 1);
+	    /*  mov (8) m2.0<1>:ud   r28.0<8;8,1>:ud  { Align1 } */
+	    /*  mov (8) m6.0<1>:ud   r29.0<8;8,1>:ud  { Align1 SecHalf } */
+	    brw_MOV(p, brw_message_reg(nr + channel), src0);
+	}
+	/* skip over the regs populated above: */
+	nr += 8;
+	brw_pop_insn_state(p);
+    }
+    fire_fb_write(c, 0, nr);
+}
+
+static void emit_pixel_w( struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+    if (mask & WRITEMASK_W) {
+	struct brw_reg dst, src0, delta0, delta1;
+	struct brw_reg interp3;
+
+	dst = get_dst_reg(c, inst, 3, 1);
+	src0 = get_src_reg(c, &inst->SrcReg[0], 0, 1);
+	delta0 = get_src_reg(c, &inst->SrcReg[1], 0, 1);
+	delta1 = get_src_reg(c, &inst->SrcReg[1], 1, 1);
+
+	interp3 = brw_vec1_grf(src0.nr+1, 4);
+	/* Calc 1/w - just linterp wpos[3] optimized by putting the
+	 * result straight into a message reg.
+	 */
+	brw_LINE(p, brw_null_reg(), interp3, delta0);
+	brw_MAC(p, brw_message_reg(2), suboffset(interp3, 1), delta1);
+
+	/* Calc w */
+	brw_math_16( p, dst,
+		BRW_MATH_FUNCTION_INV,
+		BRW_MATH_SATURATE_NONE,
+		2, brw_null_reg(),
+		BRW_MATH_PRECISION_FULL);
+    }
+}
+
+static void emit_linterp(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+    struct brw_reg interp[4];
+    struct brw_reg dst, delta0, delta1;
+    struct brw_reg src0;
+
+    src0 = get_src_reg(c, &inst->SrcReg[0], 0, 1);
+    delta0 = get_src_reg(c, &inst->SrcReg[1], 0, 1);
+    delta1 = get_src_reg(c, &inst->SrcReg[1], 1, 1);
+    unsigned nr = src0.nr;
+    int i;
+
+    interp[0] = brw_vec1_grf(nr, 0);
+    interp[1] = brw_vec1_grf(nr, 4);
+    interp[2] = brw_vec1_grf(nr+1, 0);
+    interp[3] = brw_vec1_grf(nr+1, 4);
+
+    for(i = 0; i < 4; i++ ) {
+	if (mask & (1<<i)) {
+	    dst = get_dst_reg(c, inst, i, 1);
+	    brw_LINE(p, brw_null_reg(), interp[i], delta0);
+	    brw_MAC(p, dst, suboffset(interp[i],1), delta1);
+	}
+    }
+}
+
+static void emit_cinterp(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+
+    struct brw_reg interp[4];
+    struct brw_reg dst, src0;
+
+    src0 = get_src_reg(c, &inst->SrcReg[0], 0, 1);
+    unsigned nr = src0.nr;
+    int i;
+
+    interp[0] = brw_vec1_grf(nr, 0);
+    interp[1] = brw_vec1_grf(nr, 4);
+    interp[2] = brw_vec1_grf(nr+1, 0);
+    interp[3] = brw_vec1_grf(nr+1, 4);
+
+    for(i = 0; i < 4; i++ ) {
+	if (mask & (1<<i)) {
+	    dst = get_dst_reg(c, inst, i, 1);
+	    brw_MOV(p, dst, suboffset(interp[i],3));
+	}
+    }
+}
+
+static void emit_pinterp(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+
+    struct brw_reg interp[4];
+    struct brw_reg dst, delta0, delta1;
+    struct brw_reg src0, w;
+
+    src0 = get_src_reg(c, &inst->SrcReg[0], 0, 1);
+    delta0 = get_src_reg(c, &inst->SrcReg[1], 0, 1);
+    delta1 = get_src_reg(c, &inst->SrcReg[1], 1, 1);
+    w = get_src_reg(c, &inst->SrcReg[2], 3, 1);
+    unsigned nr = src0.nr;
+    int i;
+
+    interp[0] = brw_vec1_grf(nr, 0);
+    interp[1] = brw_vec1_grf(nr, 4);
+    interp[2] = brw_vec1_grf(nr+1, 0);
+    interp[3] = brw_vec1_grf(nr+1, 4);
+
+    for(i = 0; i < 4; i++ ) {
+	if (mask & (1<<i)) {
+	    dst = get_dst_reg(c, inst, i, 1);
+	    brw_LINE(p, brw_null_reg(), interp[i], delta0);
+	    brw_MAC(p, dst, suboffset(interp[i],1),
+		    delta1);
+	    brw_MUL(p, dst, dst, w);
+	}
+    }
+}
+
+static void emit_xpd(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    int i;
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+    for (i = 0; i < 4; i++) {
+	unsigned i2 = (i+2)%3;
+	unsigned i1 = (i+1)%3;
+	if (mask & (1<<i)) {
+	    struct brw_reg src0, src1, dst;
+	    dst = get_dst_reg(c, inst, i, 1);
+	    src0 = negate(get_src_reg(c, &inst->SrcReg[0], i2, 1));
+	    src1 = get_src_reg(c, &inst->SrcReg[1], i1, 1);
+	    brw_MUL(p, brw_null_reg(), src0, src1);
+	    src0 = get_src_reg(c, &inst->SrcReg[0], i1, 1);
+	    src1 = get_src_reg(c, &inst->SrcReg[1], i2, 1);
+	    brw_set_saturate(p, inst->SaturateMode != SATURATE_OFF);
+	    brw_MAC(p, dst, src0, src1);
+	    brw_set_saturate(p, 0);
+	}
+    }
+    brw_set_saturate(p, 0);
+}
+
+static void emit_dp3(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_reg src0[3], src1[3], dst;
+    int i;
+    struct brw_compile *p = &c->func;
+    for (i = 0; i < 3; i++) {
+	src0[i] = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	src1[i] = get_src_reg(c, &inst->SrcReg[1], i, 1);
+    }
+
+    dst = get_dst_reg(c, inst, get_scalar_dst_index(inst), 1);
+    brw_MUL(p, brw_null_reg(), src0[0], src1[0]);
+    brw_MAC(p, brw_null_reg(), src0[1], src1[1]);
+    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+    brw_MAC(p, dst, src0[2], src1[2]);
+    brw_set_saturate(p, 0);
+}
+
+static void emit_dp4(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_reg src0[4], src1[4], dst;
+    int i;
+    struct brw_compile *p = &c->func;
+    for (i = 0; i < 4; i++) {
+	src0[i] = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	src1[i] = get_src_reg(c, &inst->SrcReg[1], i, 1);
+    }
+    dst = get_dst_reg(c, inst, get_scalar_dst_index(inst), 1);
+    brw_MUL(p, brw_null_reg(), src0[0], src1[0]);
+    brw_MAC(p, brw_null_reg(), src0[1], src1[1]);
+    brw_MAC(p, brw_null_reg(), src0[2], src1[2]);
+    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+    brw_MAC(p, dst, src0[3], src1[3]);
+    brw_set_saturate(p, 0);
+}
+
+static void emit_dph(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_reg src0[4], src1[4], dst;
+    int i;
+    struct brw_compile *p = &c->func;
+    for (i = 0; i < 4; i++) {
+	src0[i] = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	src1[i] = get_src_reg(c, &inst->SrcReg[1], i, 1);
+    }
+    dst = get_dst_reg(c, inst, get_scalar_dst_index(inst), 1);
+    brw_MUL(p, brw_null_reg(), src0[0], src1[0]);
+    brw_MAC(p, brw_null_reg(), src0[1], src1[1]);
+    brw_MAC(p, dst, src0[2], src1[2]);
+    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+    brw_ADD(p, dst, src0[3], src1[3]);
+    brw_set_saturate(p, 0);
+}
+
+static void emit_math1(struct brw_wm_compile *c,
+		struct prog_instruction *inst, unsigned func)
+{
+    struct brw_compile *p = &c->func;
+    struct brw_reg src0, dst;
+
+    src0 = get_src_reg(c, &inst->SrcReg[0], 0, 1);
+    dst = get_dst_reg(c, inst, get_scalar_dst_index(inst), 1);
+    brw_MOV(p, brw_message_reg(2), src0);
+    brw_math(p,
+	    dst,
+	    func,
+	    (inst->SaturateMode != SATURATE_OFF) ? BRW_MATH_SATURATE_SATURATE : BRW_MATH_SATURATE_NONE,
+	    2,
+	    brw_null_reg(),
+	    BRW_MATH_DATA_VECTOR,
+	    BRW_MATH_PRECISION_FULL);
+}
+
+static void emit_rcp(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    emit_math1(c, inst, BRW_MATH_FUNCTION_INV);
+}
+
+static void emit_rsq(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    emit_math1(c, inst, BRW_MATH_FUNCTION_RSQ);
+}
+
+static void emit_sin(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    emit_math1(c, inst, BRW_MATH_FUNCTION_SIN);
+}
+
+static void emit_cos(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    emit_math1(c, inst, BRW_MATH_FUNCTION_COS);
+}
+
+static void emit_ex2(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    emit_math1(c, inst, BRW_MATH_FUNCTION_EXP);
+}
+
+static void emit_lg2(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    emit_math1(c, inst, BRW_MATH_FUNCTION_LOG);
+}
+
+static void emit_add(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    struct brw_reg src0, src1, dst;
+    unsigned mask = inst->DstReg.WriteMask;
+    int i;
+    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+    for (i = 0 ; i < 4; i++) {
+	if (mask & (1<<i)) {
+	    dst = get_dst_reg(c, inst, i, 1);
+	    src0 = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	    src1 = get_src_reg(c, &inst->SrcReg[1], i, 1);
+	    brw_ADD(p, dst, src0, src1);
+	}
+    }
+    brw_set_saturate(p, 0);
+}
+
+static void emit_sub(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    struct brw_reg src0, src1, dst;
+    unsigned mask = inst->DstReg.WriteMask;
+    int i;
+    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+    for (i = 0 ; i < 4; i++) {
+	if (mask & (1<<i)) {
+	    dst = get_dst_reg(c, inst, i, 1);
+	    src0 = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	    src1 = get_src_reg(c, &inst->SrcReg[1], i, 1);
+	    brw_ADD(p, dst, src0, negate(src1));
+	}
+    }
+    brw_set_saturate(p, 0);
+}
+
+static void emit_mul(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    struct brw_reg src0, src1, dst;
+    unsigned mask = inst->DstReg.WriteMask;
+    int i;
+    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+    for (i = 0 ; i < 4; i++) {
+	if (mask & (1<<i)) {
+	    dst = get_dst_reg(c, inst, i, 1);
+	    src0 = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	    src1 = get_src_reg(c, &inst->SrcReg[1], i, 1);
+	    brw_MUL(p, dst, src0, src1);
+	}
+    }
+    brw_set_saturate(p, 0);
+}
+
+static void emit_frc(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    struct brw_reg src0, dst;
+    unsigned mask = inst->DstReg.WriteMask;
+    int i;
+    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+    for (i = 0 ; i < 4; i++) {
+	if (mask & (1<<i)) {
+	    dst = get_dst_reg(c, inst, i, 1);
+	    src0 = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	    brw_FRC(p, dst, src0);
+	}
+    }
+    if (inst->SaturateMode != SATURATE_OFF)
+	brw_set_saturate(p, 0);
+}
+
+static void emit_flr(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    struct brw_reg src0, dst;
+    unsigned mask = inst->DstReg.WriteMask;
+    int i;
+    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+    for (i = 0 ; i < 4; i++) {
+	if (mask & (1<<i)) {
+	    dst = get_dst_reg(c, inst, i, 1);
+	    src0 = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	    brw_RNDD(p, dst, src0);
+	}
+    }
+    brw_set_saturate(p, 0);
+}
+
+static void emit_max(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+    struct brw_reg src0, src1, dst;
+    int i;
+    brw_push_insn_state(p);
+    for (i = 0; i < 4; i++) {
+	if (mask & (1<<i)) {
+	    dst = get_dst_reg(c, inst, i, 1);
+	    src0 = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	    src1 = get_src_reg(c, &inst->SrcReg[1], i, 1);
+	    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+	    brw_MOV(p, dst, src0);
+	    brw_set_saturate(p, 0);
+
+	    brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_L, src0, src1);
+	    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+	    brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);
+	    brw_MOV(p, dst, src1);
+	    brw_set_saturate(p, 0);
+	    brw_set_predicate_control_flag_value(p, 0xff);
+	}
+    }
+    brw_pop_insn_state(p);
+}
+
+static void emit_min(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+    struct brw_reg src0, src1, dst;
+    int i;
+    brw_push_insn_state(p);
+    for (i = 0; i < 4; i++) {
+	if (mask & (1<<i)) {
+	    dst = get_dst_reg(c, inst, i, 1);
+	    src0 = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	    src1 = get_src_reg(c, &inst->SrcReg[1], i, 1);
+	    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+	    brw_MOV(p, dst, src0);
+	    brw_set_saturate(p, 0);
+
+	    brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_L, src1, src0);
+	    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+	    brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);
+	    brw_MOV(p, dst, src1);
+	    brw_set_saturate(p, 0);
+	    brw_set_predicate_control_flag_value(p, 0xff);
+	}
+    }
+    brw_pop_insn_state(p);
+}
+
+static void emit_pow(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    struct brw_reg dst, src0, src1;
+    dst = get_dst_reg(c, inst, get_scalar_dst_index(inst), 1);
+    src0 = get_src_reg(c, &inst->SrcReg[0], 0, 1);
+    src1 = get_src_reg(c, &inst->SrcReg[1], 0, 1);
+
+    brw_MOV(p, brw_message_reg(2), src0);
+    brw_MOV(p, brw_message_reg(3), src1);
+
+    brw_math(p,
+	    dst,
+	    BRW_MATH_FUNCTION_POW,
+	    (inst->SaturateMode != SATURATE_OFF) ? BRW_MATH_SATURATE_SATURATE : BRW_MATH_SATURATE_NONE,
+	    2,
+	    brw_null_reg(),
+	    BRW_MATH_DATA_VECTOR,
+	    BRW_MATH_PRECISION_FULL);
+}
+
+static void emit_lrp(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+    struct brw_reg dst, tmp1, tmp2, src0, src1, src2;
+    int i;
+    for (i = 0; i < 4; i++) {
+	if (mask & (1<<i)) {
+	    dst = get_dst_reg(c, inst, i, 1);
+	    src0 = get_src_reg(c, &inst->SrcReg[0], i, 1);
+
+	    src1 = get_src_reg(c, &inst->SrcReg[1], i, 1);
+
+	    if (src1.nr == dst.nr) {
+		tmp1 = alloc_tmp(c);
+		brw_MOV(p, tmp1, src1);
+	    } else
+		tmp1 = src1;
+
+	    src2 = get_src_reg(c, &inst->SrcReg[2], i, 1);
+	    if (src2.nr == dst.nr) {
+		tmp2 = alloc_tmp(c);
+		brw_MOV(p, tmp2, src2);
+	    } else
+		tmp2 = src2;
+
+	    brw_ADD(p, dst, negate(src0), brw_imm_f(1.0));
+	    brw_MUL(p, brw_null_reg(), dst, tmp2);
+	    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+	    brw_MAC(p, dst, src0, tmp1);
+	    brw_set_saturate(p, 0);
+	}
+	release_tmps(c);
+    }
+}
+
+static void emit_kil(struct brw_wm_compile *c)
+{
+	struct brw_compile *p = &c->func;
+	struct brw_reg depth = retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UW);
+	brw_push_insn_state(p);
+	brw_set_mask_control(p, BRW_MASK_DISABLE);
+	brw_NOT(p, c->emit_mask_reg, brw_mask_reg(1)); //IMASK
+	brw_AND(p, depth, c->emit_mask_reg, depth);
+	brw_pop_insn_state(p);
+}
+
+static void emit_mad(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+    struct brw_reg dst, src0, src1, src2;
+    int i;
+
+    for (i = 0; i < 4; i++) {
+	if (mask & (1<<i)) {
+	    dst = get_dst_reg(c, inst, i, 1);
+	    src0 = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	    src1 = get_src_reg(c, &inst->SrcReg[1], i, 1);
+	    src2 = get_src_reg(c, &inst->SrcReg[2], i, 1);
+	    brw_MUL(p, dst, src0, src1);
+
+	    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
+	    brw_ADD(p, dst, dst, src2);
+	    brw_set_saturate(p, 0);
+	}
+    }
+}
+
+static void emit_sop(struct brw_wm_compile *c,
+		struct prog_instruction *inst, unsigned cond)
+{
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+    struct brw_reg dst, src0, src1;
+    int i;
+
+    brw_push_insn_state(p);
+    for (i = 0; i < 4; i++) {
+	if (mask & (1<<i)) {
+	    dst = get_dst_reg(c, inst, i, 1);
+	    src0 = get_src_reg(c, &inst->SrcReg[0], i, 1);
+	    src1 = get_src_reg(c, &inst->SrcReg[1], i, 1);
+	    brw_CMP(p, brw_null_reg(), cond, src0, src1);
+	    brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+	    brw_MOV(p, dst, brw_imm_f(0.0));
+	    brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);
+	    brw_MOV(p, dst, brw_imm_f(1.0));
+	}
+    }
+    brw_pop_insn_state(p);
+}
+
+static void emit_slt(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    emit_sop(c, inst, BRW_CONDITIONAL_L);
+}
+
+static void emit_sle(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    emit_sop(c, inst, BRW_CONDITIONAL_LE);
+}
+
+static void emit_sgt(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    emit_sop(c, inst, BRW_CONDITIONAL_G);
+}
+
+static void emit_sge(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    emit_sop(c, inst, BRW_CONDITIONAL_GE);
+}
+
+static void emit_seq(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    emit_sop(c, inst, BRW_CONDITIONAL_EQ);
+}
+
+static void emit_sne(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    emit_sop(c, inst, BRW_CONDITIONAL_NEQ);
+}
+
+static void emit_ddx(struct brw_wm_compile *c,
+                struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+    struct brw_reg interp[4];
+    struct brw_reg dst;
+    struct brw_reg src0, w;
+    unsigned nr, i;
+    src0 = get_src_reg(c, &inst->SrcReg[0], 0, 1);
+    w = get_src_reg(c, &inst->SrcReg[1], 3, 1);
+    nr = src0.nr;
+    interp[0] = brw_vec1_grf(nr, 0);
+    interp[1] = brw_vec1_grf(nr, 4);
+    interp[2] = brw_vec1_grf(nr+1, 0);
+    interp[3] = brw_vec1_grf(nr+1, 4);
+    brw_set_saturate(p, inst->SaturateMode != SATURATE_OFF);
+    for(i = 0; i < 4; i++ ) {
+        if (mask & (1<<i)) {
+            dst = get_dst_reg(c, inst, i, 1);
+            brw_MOV(p, dst, interp[i]);
+            brw_MUL(p, dst, dst, w);
+        }
+    }
+    brw_set_saturate(p, 0);
+}
+
+static void emit_ddy(struct brw_wm_compile *c,
+                struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+    struct brw_reg interp[4];
+    struct brw_reg dst;
+    struct brw_reg src0, w;
+    unsigned nr, i;
+
+    src0 = get_src_reg(c, &inst->SrcReg[0], 0, 1);
+    nr = src0.nr;
+    w = get_src_reg(c, &inst->SrcReg[1], 3, 1);
+    interp[0] = brw_vec1_grf(nr, 0);
+    interp[1] = brw_vec1_grf(nr, 4);
+    interp[2] = brw_vec1_grf(nr+1, 0);
+    interp[3] = brw_vec1_grf(nr+1, 4);
+    brw_set_saturate(p, inst->SaturateMode != SATURATE_OFF);
+    for(i = 0; i < 4; i++ ) {
+        if (mask & (1<<i)) {
+            dst = get_dst_reg(c, inst, i, 1);
+            brw_MOV(p, dst, suboffset(interp[i], 1));
+            brw_MUL(p, dst, dst, w);
+        }
+    }
+    brw_set_saturate(p, 0);
+}
+
+static void emit_wpos_xy(struct brw_wm_compile *c,
+                struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    unsigned mask = inst->DstReg.WriteMask;
+    struct brw_reg src0[2], dst[2];
+
+    dst[0] = get_dst_reg(c, inst, 0, 1);
+    dst[1] = get_dst_reg(c, inst, 1, 1);
+
+    src0[0] = get_src_reg(c, &inst->SrcReg[0], 0, 1);
+    src0[1] = get_src_reg(c, &inst->SrcReg[0], 1, 1);
+
+    /* Calc delta X,Y by subtracting origin in r1 from the pixel
+     * centers.
+     */
+    if (mask & WRITEMASK_X) {
+	brw_MOV(p,
+		dst[0],
+		retype(src0[0], BRW_REGISTER_TYPE_UW));
+    }
+
+    if (mask & WRITEMASK_Y) {
+	/* TODO -- window_height - Y */
+	brw_MOV(p,
+		dst[1],
+		retype(src0[1], BRW_REGISTER_TYPE_UW));
+
+    }
+}
+
+/* TODO
+   BIAS on SIMD8 not workind yet...
+ */
+static void emit_txb(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    struct brw_reg dst[4], src[4], payload_reg;
+    unsigned i;
+    payload_reg = get_reg(c, PROGRAM_PAYLOAD, PAYLOAD_DEPTH, 0, 1, 0, 0);
+    for (i = 0; i < 4; i++)
+	dst[i] = get_dst_reg(c, inst, i, 1);
+    for (i = 0; i < 4; i++)
+	src[i] = get_src_reg(c, &inst->SrcReg[0], i, 1);
+
+    switch (inst->TexSrcTarget) {
+	case TEXTURE_1D_INDEX:
+	    brw_MOV(p, brw_message_reg(2), src[0]);
+	    brw_MOV(p, brw_message_reg(3), brw_imm_f(0));
+	    brw_MOV(p, brw_message_reg(4), brw_imm_f(0));
+	    break;
+	case TEXTURE_2D_INDEX:
+	case TEXTURE_RECT_INDEX:
+	    brw_MOV(p, brw_message_reg(2), src[0]);
+	    brw_MOV(p, brw_message_reg(3), src[1]);
+	    brw_MOV(p, brw_message_reg(4), brw_imm_f(0));
+	    break;
+	default:
+	    brw_MOV(p, brw_message_reg(2), src[0]);
+	    brw_MOV(p, brw_message_reg(3), src[1]);
+	    brw_MOV(p, brw_message_reg(4), src[2]);
+	    break;
+    }
+    brw_MOV(p, brw_message_reg(5), src[3]);
+    brw_MOV(p, brw_message_reg(6), brw_imm_f(0));
+    brw_SAMPLE(p,
+	    retype(vec8(dst[0]), BRW_REGISTER_TYPE_UW),
+	    1,
+	    retype(payload_reg, BRW_REGISTER_TYPE_UW),
+	    inst->TexSrcUnit + 1, /* surface */
+	    inst->TexSrcUnit,     /* sampler */
+	    inst->DstReg.WriteMask,
+	    BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE_BIAS,
+	    4,
+	    4,
+	    0);
+}
+
+static void emit_tex(struct brw_wm_compile *c,
+		struct prog_instruction *inst)
+{
+    struct brw_compile *p = &c->func;
+    struct brw_reg dst[4], src[4], payload_reg;
+    unsigned msg_len;
+    unsigned i, nr;
+    unsigned emit;
+    boolean shadow = (c->key.shadowtex_mask & (1<<inst->TexSrcUnit)) ? 1 : 0;
+
+    payload_reg = get_reg(c, PROGRAM_PAYLOAD, PAYLOAD_DEPTH, 0, 1, 0, 0);
+
+    for (i = 0; i < 4; i++)
+	dst[i] = get_dst_reg(c, inst, i, 1);
+    for (i = 0; i < 4; i++)
+	src[i] = get_src_reg(c, &inst->SrcReg[0], i, 1);
+
+
+    switch (inst->TexSrcTarget) {
+	case TEXTURE_1D_INDEX:
+	    emit = WRITEMASK_X;
+	    nr = 1;
+	    break;
+	case TEXTURE_2D_INDEX:
+	case TEXTURE_RECT_INDEX:
+	    emit = WRITEMASK_XY;
+	    nr = 2;
+	    break;
+	default:
+	    emit = WRITEMASK_XYZ;
+	    nr = 3;
+	    break;
+    }
+    msg_len = 1;
+
+    for (i = 0; i < nr; i++) {
+	static const unsigned swz[4] = {0,1,2,2};
+	if (emit & (1<<i))
+	    brw_MOV(p, brw_message_reg(msg_len+1), src[swz[i]]);
+	else
+	    brw_MOV(p, brw_message_reg(msg_len+1), brw_imm_f(0));
+	msg_len += 1;
+    }
+
+    if (shadow) {
+	brw_MOV(p, brw_message_reg(5), brw_imm_f(0));
+	brw_MOV(p, brw_message_reg(6), src[2]);
+    }
+
+    brw_SAMPLE(p,
+	    retype(vec8(dst[0]), BRW_REGISTER_TYPE_UW),
+	    1,
+	    retype(payload_reg, BRW_REGISTER_TYPE_UW),
+	    inst->TexSrcUnit + 1, /* surface */
+	    inst->TexSrcUnit,     /* sampler */
+	    inst->DstReg.WriteMask,
+	    BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE,
+	    4,
+	    shadow ? 6 : 4,
+	    0);
+
+    if (shadow)
+	brw_MOV(p, dst[3], brw_imm_f(1.0));
+}
+
+static void post_wm_emit( struct brw_wm_compile *c )
+{
+    unsigned nr_insns = c->fp->program.Base.NumInstructions;
+    unsigned insn, target_insn;
+    struct prog_instruction *inst1, *inst2;
+    struct brw_instruction *brw_inst1, *brw_inst2;
+    int offset;
+    for (insn = 0; insn < nr_insns; insn++) {
+	inst1 = &c->fp->program.Base.Instructions[insn];
+	brw_inst1 = inst1->Data;
+	switch (inst1->Opcode) {
+	    case OPCODE_CAL:
+		target_insn = inst1->BranchTarget;
+		inst2 = &c->fp->program.Base.Instructions[target_insn];
+		brw_inst2 = inst2->Data;
+		offset = brw_inst2 - brw_inst1;
+		brw_set_src1(brw_inst1, brw_imm_d(offset*16));
+		break;
+	    default:
+		break;
+	}
+    }
+}
+
+static void brw_wm_emit_glsl(struct brw_wm_compile *c)
+
+{
+#define MAX_IFSN 32
+#define MAX_LOOP_DEPTH 32
+    struct brw_instruction *if_inst[MAX_IFSN], *loop_inst[MAX_LOOP_DEPTH];
+    struct brw_instruction *inst0, *inst1;
+    int i, if_insn = 0, loop_insn = 0;
+    struct brw_compile *p = &c->func;
+    struct brw_indirect stack_index = brw_indirect(0, 0);
+
+    brw_init_compile(&c->func);
+    c->reg_index = 0;
+    prealloc_reg(c);
+    brw_set_compression_control(p, BRW_COMPRESSION_NONE);
+    brw_MOV(p, get_addr_reg(stack_index), brw_address(c->stack));
+
+    for (i = 0; i < c->nr_fp_insns; i++) {
+	struct prog_instruction *inst = &c->prog_instructions[i];
+	struct prog_instruction *orig_inst;
+
+	if ((orig_inst = inst->Data) != 0)
+	    orig_inst->Data = current_insn(p);
+
+	if (inst->CondUpdate)
+	    brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
+	else
+	    brw_set_conditionalmod(p, BRW_CONDITIONAL_NONE);
+
+	switch (inst->Opcode) {
+	    case WM_PIXELXY:
+		emit_pixel_xy(c, inst);
+		break;
+	    case WM_DELTAXY:
+		emit_delta_xy(c, inst);
+		break;
+	    case WM_PIXELW:
+		emit_pixel_w(c, inst);
+		break;
+	    case WM_LINTERP:
+		emit_linterp(c, inst);
+		break;
+	    case WM_PINTERP:
+		emit_pinterp(c, inst);
+		break;
+	    case WM_CINTERP:
+		emit_cinterp(c, inst);
+		break;
+	    case WM_WPOSXY:
+		emit_wpos_xy(c, inst);
+		break;
+	    case WM_FB_WRITE:
+		emit_fb_write(c, inst);
+		break;
+	    case OPCODE_ABS:
+		emit_abs(c, inst);
+		break;
+	    case OPCODE_ADD:
+		emit_add(c, inst);
+		break;
+	    case OPCODE_SUB:
+		emit_sub(c, inst);
+		break;
+	    case OPCODE_FRC:
+		emit_frc(c, inst);
+		break;
+	    case OPCODE_FLR:
+		emit_flr(c, inst);
+		break;
+	    case OPCODE_LRP:
+		emit_lrp(c, inst);
+		break;
+	    case OPCODE_INT:
+		emit_int(c, inst);
+		break;
+	    case OPCODE_MOV:
+		emit_mov(c, inst);
+		break;
+	    case OPCODE_DP3:
+		emit_dp3(c, inst);
+		break;
+	    case OPCODE_DP4:
+		emit_dp4(c, inst);
+		break;
+	    case OPCODE_XPD:
+		emit_xpd(c, inst);
+		break;
+	    case OPCODE_DPH:
+		emit_dph(c, inst);
+		break;
+	    case OPCODE_RCP:
+		emit_rcp(c, inst);
+		break;
+	    case OPCODE_RSQ:
+		emit_rsq(c, inst);
+		break;
+	    case OPCODE_SIN:
+		emit_sin(c, inst);
+		break;
+	    case OPCODE_COS:
+		emit_cos(c, inst);
+		break;
+	    case OPCODE_EX2:
+		emit_ex2(c, inst);
+		break;
+	    case OPCODE_LG2:
+		emit_lg2(c, inst);
+		break;
+	    case OPCODE_MAX:
+		emit_max(c, inst);
+		break;
+	    case OPCODE_MIN:
+		emit_min(c, inst);
+		break;
+	    case OPCODE_DDX:
+		emit_ddx(c, inst);
+		break;
+	    case OPCODE_DDY:
+                emit_ddy(c, inst);
+                break;
+	    case OPCODE_SLT:
+		emit_slt(c, inst);
+		break;
+	    case OPCODE_SLE:
+		emit_sle(c, inst);
+		break;
+	    case OPCODE_SGT:
+		emit_sgt(c, inst);
+		break;
+	    case OPCODE_SGE:
+		emit_sge(c, inst);
+		break;
+	    case OPCODE_SEQ:
+		emit_seq(c, inst);
+		break;
+	    case OPCODE_SNE:
+		emit_sne(c, inst);
+		break;
+	    case OPCODE_MUL:
+		emit_mul(c, inst);
+		break;
+	    case OPCODE_POW:
+		emit_pow(c, inst);
+		break;
+	    case OPCODE_MAD:
+		emit_mad(c, inst);
+		break;
+	    case OPCODE_TEX:
+		emit_tex(c, inst);
+		break;
+	    case OPCODE_TXB:
+		emit_txb(c, inst);
+		break;
+	    case OPCODE_KIL_NV:
+		emit_kil(c);
+		break;
+	    case OPCODE_IF:
+		assert(if_insn < MAX_IFSN);
+		if_inst[if_insn++] = brw_IF(p, BRW_EXECUTE_8);
+		break;
+	    case OPCODE_ELSE:
+		if_inst[if_insn-1]  = brw_ELSE(p, if_inst[if_insn-1]);
+		break;
+	    case OPCODE_ENDIF:
+		assert(if_insn > 0);
+		brw_ENDIF(p, if_inst[--if_insn]);
+		break;
+	    case OPCODE_BGNSUB:
+	    case OPCODE_ENDSUB:
+		break;
+	    case OPCODE_CAL:
+		brw_push_insn_state(p);
+		brw_set_mask_control(p, BRW_MASK_DISABLE);
+                brw_set_access_mode(p, BRW_ALIGN_1);
+                brw_ADD(p, deref_1ud(stack_index, 0), brw_ip_reg(), brw_imm_d(3*16));
+                brw_set_access_mode(p, BRW_ALIGN_16);
+                brw_ADD(p, get_addr_reg(stack_index),
+                         get_addr_reg(stack_index), brw_imm_d(4));
+                orig_inst = inst->Data;
+                orig_inst->Data = &p->store[p->nr_insn];
+                brw_ADD(p, brw_ip_reg(), brw_ip_reg(), brw_imm_d(1*16));
+                brw_pop_insn_state(p);
+		break;
+
+	    case OPCODE_RET:
+		brw_push_insn_state(p);
+		brw_set_mask_control(p, BRW_MASK_DISABLE);
+                brw_ADD(p, get_addr_reg(stack_index),
+                        get_addr_reg(stack_index), brw_imm_d(-4));
+                brw_set_access_mode(p, BRW_ALIGN_1);
+                brw_MOV(p, brw_ip_reg(), deref_1ud(stack_index, 0));
+                brw_set_access_mode(p, BRW_ALIGN_16);
+		brw_pop_insn_state(p);
+
+		break;
+	    case OPCODE_BGNLOOP:
+		loop_inst[loop_insn++] = brw_DO(p, BRW_EXECUTE_8);
+		break;
+	    case OPCODE_BRK:
+		brw_BREAK(p);
+		brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+		break;
+	    case OPCODE_CONT:
+		brw_CONT(p);
+		brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+		break;
+	    case OPCODE_ENDLOOP:
+		loop_insn--;
+		inst0 = inst1 = brw_WHILE(p, loop_inst[loop_insn]);
+		/* patch all the BREAK instructions from
+		   last BEGINLOOP */
+		while (inst0 > loop_inst[loop_insn]) {
+		    inst0--;
+		    if (inst0->header.opcode == BRW_OPCODE_BREAK) {
+			inst0->bits3.if_else.jump_count = inst1 - inst0 + 1;
+			inst0->bits3.if_else.pop_count = 0;
+		    } else if (inst0->header.opcode == BRW_OPCODE_CONTINUE) {
+                        inst0->bits3.if_else.jump_count = inst1 - inst0;
+                        inst0->bits3.if_else.pop_count = 0;
+                    }
+		}
+		break;
+	    default:
+		_mesa_printf("unsupported IR in fragment shader %d\n",
+			inst->Opcode);
+	}
+	if (inst->CondUpdate)
+	    brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);
+	else
+	    brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+    }
+    post_wm_emit(c);
+    for (i = 0; i < c->fp->program.Base.NumInstructions; i++)
+	c->fp->program.Base.Instructions[i].Data = NULL;
+}
+
+void brw_wm_glsl_emit(struct brw_wm_compile *c)
+{
+    brw_wm_pass_fp(c);
+    c->tmp_index = 127;
+    brw_wm_emit_glsl(c);
+    c->prog_data.total_grf = c->reg_index;
+    c->prog_data.total_scratch = 0;
+}
+#endif