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path: root/src/mesa/drivers/dri/i965/brw_wm_fp.c
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Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_wm_fp.c')
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_fp.c195
1 files changed, 107 insertions, 88 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_fp.c b/src/mesa/drivers/dri/i965/brw_wm_fp.c
index ea3f3fc678..533be3858e 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_fp.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_fp.c
@@ -129,7 +129,7 @@ static struct prog_dst_register dst_reg(GLuint file, GLuint idx)
reg.Index = idx;
reg.WriteMask = WRITEMASK_XYZW;
reg.RelAddr = 0;
- reg.CondMask = 0;
+ reg.CondMask = COND_TR;
reg.CondSwizzle = 0;
reg.CondSrc = 0;
reg.pad = 0;
@@ -183,16 +183,16 @@ static struct prog_instruction *emit_insn(struct brw_wm_compile *c,
{
struct prog_instruction *inst = get_fp_inst(c);
*inst = *inst0;
- inst->Data = (void *)inst0;
return inst;
}
-static struct prog_instruction * emit_op(struct brw_wm_compile *c,
+static struct prog_instruction * emit_tex_op(struct brw_wm_compile *c,
GLuint op,
struct prog_dst_register dest,
GLuint saturate,
GLuint tex_src_unit,
GLuint tex_src_target,
+ GLuint tex_shadow,
struct prog_src_register src0,
struct prog_src_register src1,
struct prog_src_register src2 )
@@ -206,6 +206,7 @@ static struct prog_instruction * emit_op(struct brw_wm_compile *c,
inst->SaturateMode = saturate;
inst->TexSrcUnit = tex_src_unit;
inst->TexSrcTarget = tex_src_target;
+ inst->TexShadow = tex_shadow;
inst->SrcReg[0] = src0;
inst->SrcReg[1] = src1;
inst->SrcReg[2] = src2;
@@ -213,6 +214,20 @@ static struct prog_instruction * emit_op(struct brw_wm_compile *c,
}
+static struct prog_instruction * emit_op(struct brw_wm_compile *c,
+ GLuint op,
+ struct prog_dst_register dest,
+ GLuint saturate,
+ struct prog_src_register src0,
+ struct prog_src_register src1,
+ struct prog_src_register src2 )
+{
+ return emit_tex_op(c, op, dest, saturate,
+ 0, 0, 0, /* tex unit, target, shadow */
+ src0, src1, src2);
+}
+
+
/***********************************************************************
@@ -234,7 +249,7 @@ static struct prog_src_register get_pixel_xy( struct brw_wm_compile *c )
emit_op(c,
WM_PIXELXY,
dst_mask(pixel_xy, WRITEMASK_XY),
- 0, 0, 0,
+ 0,
payload_r0_depth,
src_undef(),
src_undef());
@@ -257,7 +272,7 @@ static struct prog_src_register get_delta_xy( struct brw_wm_compile *c )
emit_op(c,
WM_DELTAXY,
dst_mask(delta_xy, WRITEMASK_XY),
- 0, 0, 0,
+ 0,
pixel_xy,
payload_r0_depth,
src_undef());
@@ -274,14 +289,13 @@ static struct prog_src_register get_pixel_w( struct brw_wm_compile *c )
struct prog_dst_register pixel_w = get_temp(c);
struct prog_src_register deltas = get_delta_xy(c);
struct prog_src_register interp_wpos = src_reg(PROGRAM_PAYLOAD, FRAG_ATTRIB_WPOS);
-
-
+
/* deltas.xyw = DELTAS2 deltas.xy, payload.interp_wpos.x
*/
emit_op(c,
WM_PIXELW,
dst_mask(pixel_w, WRITEMASK_W),
- 0, 0, 0,
+ 0,
interp_wpos,
deltas,
src_undef());
@@ -316,7 +330,7 @@ static void emit_interp( struct brw_wm_compile *c,
emit_op(c,
WM_WPOSXY,
dst_mask(dst, WRITEMASK_XY),
- 0, 0, 0,
+ 0,
get_pixel_xy(c),
src_undef(),
src_undef());
@@ -328,7 +342,7 @@ static void emit_interp( struct brw_wm_compile *c,
emit_op(c,
WM_LINTERP,
dst,
- 0, 0, 0,
+ 0,
interp,
deltas,
arg2);
@@ -339,7 +353,7 @@ static void emit_interp( struct brw_wm_compile *c,
emit_op(c,
WM_CINTERP,
dst,
- 0, 0, 0,
+ 0,
interp,
src_undef(),
src_undef());
@@ -348,7 +362,7 @@ static void emit_interp( struct brw_wm_compile *c,
emit_op(c,
WM_LINTERP,
dst,
- 0, 0, 0,
+ 0,
interp,
deltas,
src_undef());
@@ -358,7 +372,7 @@ static void emit_interp( struct brw_wm_compile *c,
emit_op(c,
WM_PINTERP,
dst,
- 0, 0, 0,
+ 0,
interp,
deltas,
get_pixel_w(c));
@@ -378,7 +392,7 @@ static void emit_ddx( struct brw_wm_compile *c,
emit_op(c,
OPCODE_DDX,
inst->DstReg,
- 0, 0, 0,
+ 0,
interp,
get_pixel_w(c),
src_undef());
@@ -394,7 +408,7 @@ static void emit_ddy( struct brw_wm_compile *c,
emit_op(c,
OPCODE_DDY,
inst->DstReg,
- 0, 0, 0,
+ 0,
interp,
get_pixel_w(c),
src_undef());
@@ -489,13 +503,12 @@ static void precalc_dst( struct brw_wm_compile *c,
emit_op(c,
OPCODE_MUL,
dst_mask(dst, WRITEMASK_Y),
- inst->SaturateMode, 0, 0,
+ inst->SaturateMode,
src0,
src1,
src_undef());
}
-
if (dst.WriteMask & WRITEMASK_XZ) {
struct prog_instruction *swz;
GLuint z = GET_SWZ(src0.Swizzle, Z);
@@ -505,7 +518,7 @@ static void precalc_dst( struct brw_wm_compile *c,
swz = emit_op(c,
OPCODE_SWZ,
dst_mask(dst, WRITEMASK_XZ),
- inst->SaturateMode, 0, 0,
+ inst->SaturateMode,
src_swizzle(src0, SWIZZLE_ONE, z, z, z),
src_undef(),
src_undef());
@@ -518,7 +531,7 @@ static void precalc_dst( struct brw_wm_compile *c,
emit_op(c,
OPCODE_MOV,
dst_mask(dst, WRITEMASK_W),
- inst->SaturateMode, 0, 0,
+ inst->SaturateMode,
src1,
src_undef(),
src_undef());
@@ -540,7 +553,7 @@ static void precalc_lit( struct brw_wm_compile *c,
swz = emit_op(c,
OPCODE_SWZ,
dst_mask(dst, WRITEMASK_XW),
- 0, 0, 0,
+ 0,
src_swizzle1(src0, SWIZZLE_ONE),
src_undef(),
src_undef());
@@ -548,12 +561,11 @@ static void precalc_lit( struct brw_wm_compile *c,
swz->SrcReg[0].NegateBase = 0;
}
-
if (dst.WriteMask & WRITEMASK_YZ) {
emit_op(c,
OPCODE_LIT,
dst_mask(dst, WRITEMASK_YZ),
- inst->SaturateMode, 0, 0,
+ inst->SaturateMode,
src0,
src_undef(),
src_undef());
@@ -589,7 +601,7 @@ static void precalc_tex( struct brw_wm_compile *c,
/* tmpcoord = src0 (i.e.: coord = src0) */
out = emit_op(c, OPCODE_MOV,
tmpcoord,
- 0, 0, 0,
+ 0,
src0,
src_undef(),
src_undef());
@@ -599,7 +611,7 @@ static void precalc_tex( struct brw_wm_compile *c,
/* tmp0 = MAX(coord.X, coord.Y) */
emit_op(c, OPCODE_MAX,
tmp0,
- 0, 0, 0,
+ 0,
src_swizzle1(coord, X),
src_swizzle1(coord, Y),
src_undef());
@@ -607,7 +619,7 @@ static void precalc_tex( struct brw_wm_compile *c,
/* tmp1 = MAX(tmp0, coord.Z) */
emit_op(c, OPCODE_MAX,
tmp1,
- 0, 0, 0,
+ 0,
tmp0src,
src_swizzle1(coord, Z),
src_undef());
@@ -615,7 +627,7 @@ static void precalc_tex( struct brw_wm_compile *c,
/* tmp0 = 1 / tmp1 */
emit_op(c, OPCODE_RCP,
tmp0,
- 0, 0, 0,
+ 0,
tmp1src,
src_undef(),
src_undef());
@@ -623,7 +635,7 @@ static void precalc_tex( struct brw_wm_compile *c,
/* tmpCoord = src0 * tmp0 */
emit_op(c, OPCODE_MUL,
tmpcoord,
- 0, 0, 0,
+ 0,
src0,
tmp0src,
src_undef());
@@ -646,7 +658,7 @@ static void precalc_tex( struct brw_wm_compile *c,
emit_op(c,
OPCODE_MUL,
tmpcoord,
- 0, 0, 0,
+ 0,
inst->SrcReg[0],
scale,
src_undef());
@@ -686,22 +698,23 @@ static void precalc_tex( struct brw_wm_compile *c,
/* tmp = TEX ...
*/
- emit_op(c,
- OPCODE_TEX,
- tmp,
- inst->SaturateMode,
- unit,
- inst->TexSrcTarget,
- coord,
- src_undef(),
- src_undef());
+ emit_tex_op(c,
+ OPCODE_TEX,
+ tmp,
+ inst->SaturateMode,
+ unit,
+ inst->TexSrcTarget,
+ inst->TexShadow,
+ coord,
+ src_undef(),
+ src_undef());
/* tmp.xyz = ADD TMP, C0
*/
emit_op(c,
OPCODE_ADD,
dst_mask(tmp, WRITEMASK_XYZ),
- 0, 0, 0,
+ 0,
tmpsrc,
C0,
src_undef());
@@ -712,7 +725,7 @@ static void precalc_tex( struct brw_wm_compile *c,
emit_op(c,
OPCODE_MUL,
dst_mask(tmp, WRITEMASK_Y),
- 0, 0, 0,
+ 0,
tmpsrc,
src_swizzle1(C0, W),
src_undef());
@@ -727,7 +740,7 @@ static void precalc_tex( struct brw_wm_compile *c,
emit_op(c,
OPCODE_MAD,
dst_mask(dst, WRITEMASK_XYZ),
- 0, 0, 0,
+ 0,
swap_uv?src_swizzle(tmpsrc, Z,Z,X,X):src_swizzle(tmpsrc, X,X,Z,Z),
C1,
src_swizzle1(tmpsrc, Y));
@@ -737,7 +750,7 @@ static void precalc_tex( struct brw_wm_compile *c,
emit_op(c,
OPCODE_MAD,
dst_mask(dst, WRITEMASK_Y),
- 0, 0, 0,
+ 0,
src_swizzle1(tmpsrc, Z),
src_swizzle1(C1, W),
src_swizzle1(src_reg_from_dst(dst), Y));
@@ -746,15 +759,16 @@ static void precalc_tex( struct brw_wm_compile *c,
}
else {
/* ordinary RGBA tex instruction */
- emit_op(c,
- OPCODE_TEX,
- inst->DstReg,
- inst->SaturateMode,
- unit,
- inst->TexSrcTarget,
- coord,
- src_undef(),
- src_undef());
+ emit_tex_op(c,
+ OPCODE_TEX,
+ inst->DstReg,
+ inst->SaturateMode,
+ unit,
+ inst->TexSrcTarget,
+ inst->TexShadow,
+ coord,
+ src_undef(),
+ src_undef());
}
/* For GL_EXT_texture_swizzle: */
@@ -764,7 +778,6 @@ static void precalc_tex( struct brw_wm_compile *c,
emit_op(c, OPCODE_SWZ,
inst->DstReg,
SATURATE_OFF, /* saturate already done above */
- 0, 0, /* tex unit, target N/A */
src_swizzle4(tmpsrc, c->key.tex_swizzles[unit]),
src_undef(),
src_undef());
@@ -813,7 +826,7 @@ static void precalc_txp( struct brw_wm_compile *c,
emit_op(c,
OPCODE_RCP,
dst_mask(tmp, WRITEMASK_W),
- 0, 0, 0,
+ 0,
src_swizzle1(src0, GET_SWZ(src0.Swizzle, W)),
src_undef(),
src_undef());
@@ -823,7 +836,7 @@ static void precalc_txp( struct brw_wm_compile *c,
emit_op(c,
OPCODE_MUL,
dst_mask(tmp, WRITEMASK_XYZ),
- 0, 0, 0,
+ 0,
src0,
src_swizzle1(src_reg_from_dst(tmp), W),
src_undef());
@@ -849,42 +862,41 @@ static void precalc_txp( struct brw_wm_compile *c,
static void emit_fb_write( struct brw_wm_compile *c )
{
struct prog_src_register payload_r0_depth = src_reg(PROGRAM_PAYLOAD, PAYLOAD_DEPTH);
- struct prog_src_register outdepth = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DEPR);
+ struct prog_src_register outdepth = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DEPTH);
struct prog_src_register outcolor;
GLuint i;
struct prog_instruction *inst, *last_inst;
struct brw_context *brw = c->func.brw;
- /* inst->Sampler is not used by backend,
- use it for fb write target and eot */
-
- if (brw->state.nr_draw_regions > 1) {
- for (i = 0 ; i < brw->state.nr_draw_regions; i++) {
- outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DATA0 + i);
- last_inst = inst = emit_op(c,
- WM_FB_WRITE, dst_mask(dst_undef(),0), 0, 0, 0,
- outcolor, payload_r0_depth, outdepth);
- inst->Sampler = (i<<1);
- if (c->fp_fragcolor_emitted) {
- outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLR);
- last_inst = inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(),0),
- 0, 0, 0, outcolor, payload_r0_depth, outdepth);
- inst->Sampler = (i<<1);
- }
- }
- last_inst->Sampler |= 1; //eot
+ /* The inst->Aux field is used for FB write target and the EOT marker */
+
+ if (brw->state.nr_color_regions > 1) {
+ for (i = 0 ; i < brw->state.nr_color_regions; i++) {
+ outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DATA0 + i);
+ last_inst = inst = emit_op(c,
+ WM_FB_WRITE, dst_mask(dst_undef(),0), 0,
+ outcolor, payload_r0_depth, outdepth);
+ inst->Aux = (i<<1);
+ if (c->fp_fragcolor_emitted) {
+ outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLOR);
+ last_inst = inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(),0),
+ 0, outcolor, payload_r0_depth, outdepth);
+ inst->Aux = (i<<1);
+ }
+ }
+ last_inst->Aux |= 1; //eot
}
else {
/* if gl_FragData[0] is written, use it, else use gl_FragColor */
if (c->fp->program.Base.OutputsWritten & (1 << FRAG_RESULT_DATA0))
outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DATA0);
else
- outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLR);
+ outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLOR);
- inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(),0),
- 0, 0, 0, outcolor, payload_r0_depth, outdepth);
- inst->Sampler = 1|(0<<1);
+ inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(),0),
+ 0, outcolor, payload_r0_depth, outdepth);
+ inst->Aux = 1|(0<<1);
}
}
@@ -915,9 +927,9 @@ static void validate_dst_regs( struct brw_wm_compile *c,
const struct prog_instruction *inst )
{
if (inst->DstReg.File == PROGRAM_OUTPUT) {
- GLuint idx = inst->DstReg.Index;
- if (idx == FRAG_RESULT_COLR)
- c->fp_fragcolor_emitted = 1;
+ GLuint idx = inst->DstReg.Index;
+ if (idx == FRAG_RESULT_COLOR)
+ c->fp_fragcolor_emitted = 1;
}
}
@@ -937,11 +949,15 @@ static void print_insns( const struct prog_instruction *insn,
3);
}
else
- _mesa_printf("UNKNOWN\n");
-
+ _mesa_printf("965 Opcode %d\n", insn->Opcode);
}
}
+
+/**
+ * Initial pass for fragment program code generation.
+ * This function is used by both the GLSL and non-GLSL paths.
+ */
void brw_wm_pass_fp( struct brw_wm_compile *c )
{
struct brw_fragment_program *fp = c->fp;
@@ -958,15 +974,19 @@ void brw_wm_pass_fp( struct brw_wm_compile *c )
c->pixel_w = src_undef();
c->nr_fp_insns = 0;
- /* Emit preamble instructions:
+ /* Emit preamble instructions. This is where special instructions such as
+ * WM_CINTERP, WM_LINTERP, WM_PINTERP and WM_WPOSXY are emitted to
+ * compute shader inputs from varying vars.
*/
-
-
for (insn = 0; insn < fp->program.Base.NumInstructions; insn++) {
const struct prog_instruction *inst = &fp->program.Base.Instructions[insn];
validate_src_regs(c, inst);
validate_dst_regs(c, inst);
}
+
+ /* Loop over all instructions doing assorted simplifications and
+ * transformations.
+ */
for (insn = 0; insn < fp->program.Base.NumInstructions; insn++) {
const struct prog_instruction *inst = &fp->program.Base.Instructions[insn];
struct prog_instruction *out;
@@ -975,7 +995,6 @@ void brw_wm_pass_fp( struct brw_wm_compile *c )
* necessary:
*/
-
switch (inst->Opcode) {
case OPCODE_SWZ:
out = emit_insn(c, inst);
@@ -1055,9 +1074,9 @@ void brw_wm_pass_fp( struct brw_wm_compile *c )
}
if (INTEL_DEBUG & DEBUG_WM) {
- _mesa_printf("pass_fp:\n");
- print_insns( c->prog_instructions, c->nr_fp_insns );
- _mesa_printf("\n");
+ _mesa_printf("pass_fp:\n");
+ print_insns( c->prog_instructions, c->nr_fp_insns );
+ _mesa_printf("\n");
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-22 06:11:59 +0000