summaryrefslogtreecommitdiff
path: root/src/mesa/drivers/dri/i965/brw_wm_fp.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_wm_fp.c')
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_fp.c139
1 files changed, 63 insertions, 76 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_fp.c b/src/mesa/drivers/dri/i965/brw_wm_fp.c
index d3e926c328..ea3f3fc678 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_fp.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_fp.c
@@ -111,6 +111,12 @@ static struct prog_src_register src_swizzle1( struct prog_src_register reg, int
return src_swizzle(reg, x, x, x, x);
}
+static struct prog_src_register src_swizzle4( struct prog_src_register reg, uint swizzle )
+{
+ reg.Swizzle = swizzle;
+ return reg;
+}
+
/***********************************************************************
* Dest regs
@@ -122,10 +128,11 @@ static struct prog_dst_register dst_reg(GLuint file, GLuint idx)
reg.File = file;
reg.Index = idx;
reg.WriteMask = WRITEMASK_XYZW;
+ reg.RelAddr = 0;
reg.CondMask = 0;
reg.CondSwizzle = 0;
- reg.pad = 0;
reg.CondSrc = 0;
+ reg.pad = 0;
return reg;
}
@@ -426,10 +433,6 @@ static struct prog_src_register search_or_add_param5(struct brw_wm_compile *c,
idx = _mesa_add_state_reference( paramList, tokens );
- /* Recalculate state dependency:
- */
- c->fp->param_state = paramList->StateFlags;
-
return src_reg(PROGRAM_STATE_VAR, idx);
}
@@ -557,12 +560,19 @@ static void precalc_lit( struct brw_wm_compile *c,
}
}
+
+/**
+ * Some TEX instructions require extra code, cube map coordinate
+ * normalization, or coordinate scaling for RECT textures, etc.
+ * This function emits those extra instructions and the TEX
+ * instruction itself.
+ */
static void precalc_tex( struct brw_wm_compile *c,
const struct prog_instruction *inst )
{
struct prog_src_register coord;
struct prog_dst_register tmpcoord;
- GLuint unit = c->fp->program.Base.SamplerUnits[inst->TexSrcUnit];
+ const GLuint unit = c->fp->program.Base.SamplerUnits[inst->TexSrcUnit];
if (inst->TexSrcTarget == TEXTURE_CUBE_INDEX) {
struct prog_instruction *out;
@@ -572,9 +582,11 @@ static void precalc_tex( struct brw_wm_compile *c,
struct prog_src_register tmp1src = src_reg_from_dst(tmp1);
struct prog_src_register src0 = inst->SrcReg[0];
+ /* find longest component of coord vector and normalize it */
tmpcoord = get_temp(c);
coord = src_reg_from_dst(tmpcoord);
+ /* tmpcoord = src0 (i.e.: coord = src0) */
out = emit_op(c, OPCODE_MOV,
tmpcoord,
0, 0, 0,
@@ -584,6 +596,7 @@ static void precalc_tex( struct brw_wm_compile *c,
out->SrcReg[0].NegateBase = 0;
out->SrcReg[0].Abs = 1;
+ /* tmp0 = MAX(coord.X, coord.Y) */
emit_op(c, OPCODE_MAX,
tmp0,
0, 0, 0,
@@ -591,6 +604,7 @@ static void precalc_tex( struct brw_wm_compile *c,
src_swizzle1(coord, Y),
src_undef());
+ /* tmp1 = MAX(tmp0, coord.Z) */
emit_op(c, OPCODE_MAX,
tmp1,
0, 0, 0,
@@ -598,6 +612,7 @@ static void precalc_tex( struct brw_wm_compile *c,
src_swizzle1(coord, Z),
src_undef());
+ /* tmp0 = 1 / tmp1 */
emit_op(c, OPCODE_RCP,
tmp0,
0, 0, 0,
@@ -605,6 +620,7 @@ static void precalc_tex( struct brw_wm_compile *c,
src_undef(),
src_undef());
+ /* tmpCoord = src0 * tmp0 */
emit_op(c, OPCODE_MUL,
tmpcoord,
0, 0, 0,
@@ -614,7 +630,8 @@ static void precalc_tex( struct brw_wm_compile *c,
release_temp(c, tmp0);
release_temp(c, tmp1);
- } else if (inst->TexSrcTarget == TEXTURE_RECT_INDEX) {
+ }
+ else if (inst->TexSrcTarget == TEXTURE_RECT_INDEX) {
struct prog_src_register scale =
search_or_add_param5( c,
STATE_INTERNAL,
@@ -645,19 +662,9 @@ static void precalc_tex( struct brw_wm_compile *c,
* conversion requires allocating a temporary variable which we
* don't have the facility to do that late in the compilation.
*/
- if (!(c->key.yuvtex_mask & (1<<unit))) {
- emit_op(c,
- OPCODE_TEX,
- inst->DstReg,
- inst->SaturateMode,
- unit,
- inst->TexSrcTarget,
- coord,
- src_undef(),
- src_undef());
- }
- else {
- GLboolean swap_uv = c->key.yuvtex_swap_mask & (1<<unit);
+ if (c->key.yuvtex_mask & (1 << unit)) {
+ /* convert ycbcr to RGBA */
+ GLboolean swap_uv = c->key.yuvtex_swap_mask & (1<<unit);
/*
CONST C0 = { -.5, -.0625, -.5, 1.164 }
@@ -737,6 +744,31 @@ static void precalc_tex( struct brw_wm_compile *c,
release_temp(c, tmp);
}
+ else {
+ /* ordinary RGBA tex instruction */
+ emit_op(c,
+ OPCODE_TEX,
+ inst->DstReg,
+ inst->SaturateMode,
+ unit,
+ inst->TexSrcTarget,
+ coord,
+ src_undef(),
+ src_undef());
+ }
+
+ /* For GL_EXT_texture_swizzle: */
+ if (c->key.tex_swizzles[unit] != SWIZZLE_NOOP) {
+ /* swizzle the result of the TEX instruction */
+ struct prog_src_register tmpsrc = src_reg_from_dst(inst->DstReg);
+ 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());
+ }
if ((inst->TexSrcTarget == TEXTURE_RECT_INDEX) ||
(inst->TexSrcTarget == TEXTURE_CUBE_INDEX))
@@ -814,62 +846,11 @@ static void precalc_txp( struct brw_wm_compile *c,
-
-
-/***********************************************************************
- * Add instructions to perform fog blending
- */
-
-static void fog_blend( struct brw_wm_compile *c,
- struct prog_src_register fog_factor )
-{
- struct prog_dst_register outcolor = dst_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLR);
- struct prog_src_register fogcolor = search_or_add_param5( c, STATE_FOG_COLOR, 0,0,0,0 );
-
- /* color.xyz = LRP fog_factor.xxxx, output_color, fog_color */
-
- emit_op(c,
- OPCODE_LRP,
- dst_mask(outcolor, WRITEMASK_XYZ),
- 0, 0, 0,
- fog_factor,
- src_reg_from_dst(outcolor),
- fogcolor);
-}
-
-
-
-/* This one is simple - just take the interpolated fog coordinate and
- * use it as the fog blend factor.
- */
-static void fog_interpolated( struct brw_wm_compile *c )
-{
- struct prog_src_register fogc = src_reg(PROGRAM_INPUT, FRAG_ATTRIB_FOGC);
-
- if (!(c->fp_interp_emitted & (1<<FRAG_ATTRIB_FOGC)))
- emit_interp(c, FRAG_ATTRIB_FOGC);
-
- fog_blend( c, src_swizzle1(fogc, GET_SWZ(fogc.Swizzle,X)));
-}
-
-static void emit_fog( struct brw_wm_compile *c )
-{
- if (!c->fp->program.FogOption)
- return;
-
- if (1)
- fog_interpolated( c );
- else {
- /* TODO: per-pixel fog */
- assert(0);
- }
-}
-
static void emit_fb_write( struct brw_wm_compile *c )
{
- struct prog_src_register outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLR);
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 outcolor;
GLuint i;
struct prog_instruction *inst, *last_inst;
@@ -893,7 +874,14 @@ static void emit_fb_write( struct brw_wm_compile *c )
}
}
last_inst->Sampler |= 1; //eot
- }else {
+ }
+ 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);
+
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);
@@ -960,7 +948,7 @@ void brw_wm_pass_fp( struct brw_wm_compile *c )
GLuint insn;
if (INTEL_DEBUG & DEBUG_WM) {
- _mesa_printf("\n\n\npre-fp:\n");
+ _mesa_printf("pre-fp:\n");
_mesa_print_program(&fp->program.Base);
_mesa_printf("\n");
}
@@ -1055,7 +1043,6 @@ void brw_wm_pass_fp( struct brw_wm_compile *c )
emit_ddy(c, inst);
break;
case OPCODE_END:
- emit_fog(c);
emit_fb_write(c);
break;
case OPCODE_PRINT:
@@ -1068,7 +1055,7 @@ void brw_wm_pass_fp( struct brw_wm_compile *c )
}
if (INTEL_DEBUG & DEBUG_WM) {
- _mesa_printf("\n\n\npass_fp:\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 2024-08-06 16:29:45 +0000